functions.php

   1 <?php
   2
   3         date_default_timezone_set('UTC');
   4         if (defined('E_DEPRECATED')) {
   5                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
   6         } else {
   7                 error_reporting(E_ALL & ~E_NOTICE);
   8         }
   9
  10         require_once 'config.php';
  11
  12         if (DB_TYPE == "pgsql") {
  13                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  14         } else {
  15                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  16         }
  17
  18         define('THEME_VERSION_REQUIRED', 1.1);
  19
  20         /**
  21          * Return available translations names.
  22          *
  23          * @access public
  24          * @return array A array of available translations.
  25          */
  26         function get_translations() {
  27                 $tr = array(
  28                                         "auto"  => "Detect automatically",
  29                                         "ca_CA" => "Català",
  30                                         "en_US" => "English",
  31                                         "es_ES" => "Español",
  32                                         "de_DE" => "Deutsch",
  33                                         "fr_FR" => "Français",
  34                                         "hu_HU" => "Magyar (Hungarian)",
  35                                         "it_IT" => "Italiano",
  36                                         "ja_JP" => "日本語 (Japanese)",
  37                                         "nb_NO" => "Norwegian bokmål",
  38                                         "ru_RU" => "Русский",
  39                                         "pt_BR" => "Portuguese/Brazil",
  40                                         "zh_CN" => "Simplified Chinese");
  41
  42                 return $tr;
  43         }
  44
  45         require_once "lib/accept-to-gettext.php";
  46         require_once "lib/gettext/gettext.inc";
  47
  48         function startup_gettext() {
  49
  50                 # Get locale from Accept-Language header
  51                 $lang = al2gt(array_keys(get_translations()), "text/html");
  52
  53                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
  54                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
  55                 }
  56
  57                 if ($_COOKIE["ttrss_lang"] && $_COOKIE["ttrss_lang"] != "auto") {
  58                         $lang = $_COOKIE["ttrss_lang"];
  59                 }
  60
  61                 /* In login action of mobile version */
  62                 if ($_POST["language"] && defined('MOBILE_VERSION')) {
  63                         $lang = $_POST["language"];
  64                         $_COOKIE["ttrss_lang"] = $lang;
  65                 }
  66
  67                 if ($lang) {
  68                         if (defined('LC_MESSAGES')) {
  69                                 _setlocale(LC_MESSAGES, $lang);
  70                         } else if (defined('LC_ALL')) {
  71                                 _setlocale(LC_ALL, $lang);
  72                         }
  73
  74                         if (defined('MOBILE_VERSION')) {
  75                                 _bindtextdomain("messages", "../locale");
  76                         } else {
  77                                 _bindtextdomain("messages", "locale");
  78                         }
  79
  80                         _textdomain("messages");
  81                         _bind_textdomain_codeset("messages", "UTF-8");
  82                 }
  83         }
  84
  85         startup_gettext();
  86
  87         if (defined('MEMCACHE_SERVER')) {
  88                 $memcache = new Memcache;
  89                 $memcache->connect(MEMCACHE_SERVER, 11211);
  90         }
  91
  92         require_once 'db-prefs.php';
  93         require_once 'errors.php';
  94         require_once 'version.php';
  95
  96         require_once 'lib/phpmailer/class.phpmailer.php';
  97         require_once 'lib/sphinxapi.php';
  98         require_once 'lib/tmhoauth/tmhOAuth.php';
  99
 100         //define('MAGPIE_USER_AGENT_EXT', ' (Tiny Tiny RSS/' . VERSION . ')');
 101         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
 102
 103         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 104         define('MAGPIE_USER_AGENT', SELF_USER_AGENT);
 105
 106         ini_set('user_agent', SELF_USER_AGENT);
 107
 108         require_once "lib/simplepie/simplepie.inc";
 109         require_once "lib/magpierss/rss_fetch.inc";
 110         require_once 'lib/magpierss/rss_utils.inc';
 111         require_once 'lib/htmlpurifier/library/HTMLPurifier.auto.php';
 112         require_once 'lib/pubsubhubbub/publisher.php';
 113         require_once 'lib/pubsubhubbub/subscriber.php';
 114
 115         $config = HTMLPurifier_Config::createDefault();
 116
 117         $allowed = "p,a[href],i,em,b,strong,code,pre,blockquote,br,img[src|alt|title],ul,ol,li,h1,h2,h3,h4,s,object[classid|type|id|name|width|height|codebase],param[name|value],table,tr,td";
 118
 119         $config->set('HTML.SafeObject', true);
 120         @$config->set('HTML', 'Allowed', $allowed);
 121         $config->set('Output.FlashCompat', true);
 122         $config->set('Attr.EnableID', true);
 123         if (!defined('MOBILE_VERSION')) {
 124                 @$config->set('Cache', 'SerializerPath', CACHE_DIR . "/htmlpurifier");
 125         } else {
 126                 @$config->set('Cache', 'SerializerPath', "../" . CACHE_DIR . "/htmlpurifier");
 127         }
 128
 129         $purifier = new HTMLPurifier($config);
 130
 131         $tz_offset = -1;
 132         $utc_tz = new DateTimeZone('UTC');
 133         $schema_version = false;
 134
 135         /**
 136          * Print a timestamped debug message.
 137          *
 138          * @param string $msg The debug message.
 139          * @return void
 140          */
 141         function _debug($msg) {
 142                 $ts = strftime("%H:%M:%S", time());
 143                 if (function_exists('posix_getpid')) {
 144                         $ts = "$ts/" . posix_getpid();
 145                 }
 146                 print "[$ts] $msg\n";
 147         } // function _debug
 148
 149         /**
 150          * Purge a feed old posts.
 151          *
 152          * @param mixed $link A database connection.
 153          * @param mixed $feed_id The id of the purged feed.
 154          * @param mixed $purge_interval Olderness of purged posts.
 155          * @param boolean $debug Set to True to enable the debug. False by default.
 156          * @access public
 157          * @return void
 158          */
 159         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 160
 161                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
 162
 163                 $rows = -1;
 164
 165                 $result = db_query($link,
 166                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 167
 168                 $owner_uid = false;
 169
 170                 if (db_num_rows($result) == 1) {
 171                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 172                 }
 173
 174                 if ($purge_interval == -1 || !$purge_interval) {
 175                         if ($owner_uid) {
 176                                 ccache_update($link, $feed_id, $owner_uid);
 177                         }
 178                         return;
 179                 }
 180
 181                 if (!$owner_uid) return;
 182
 183                 if (FORCE_ARTICLE_PURGE == 0) {
 184                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
 185                                 $owner_uid, false);
 186                 } else {
 187                         $purge_unread = true;
 188                         $purge_interval = FORCE_ARTICLE_PURGE;
 189                 }
 190
 191                 if (!$purge_unread) $query_limit = " unread = false AND ";
 192
 193                 if (DB_TYPE == "pgsql") {
 194                         $pg_version = get_pgsql_version($link);
 195
 196                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 197
 198                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 199                                         ttrss_entries.id = ref_id AND
 200                                         marked = false AND
 201                                         feed_id = '$feed_id' AND
 202                                         $query_limit
 203                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 204
 205                         } else {
 206
 207                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
 208                                         USING ttrss_entries
 209                                         WHERE ttrss_entries.id = ref_id AND
 210                                         marked = false AND
 211                                         feed_id = '$feed_id' AND
 212                                         $query_limit
 213                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 214                         }
 215
 216                         $rows = pg_affected_rows($result);
 217
 218                 } else {
 219
 220 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 221                                 marked = false AND feed_id = '$feed_id' AND
 222                                 (SELECT date_updated FROM ttrss_entries WHERE
 223                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 224
 225                         $result = db_query($link, "DELETE FROM ttrss_user_entries
 226                                 USING ttrss_user_entries, ttrss_entries
 227                                 WHERE ttrss_entries.id = ref_id AND
 228                                 marked = false AND
 229                                 feed_id = '$feed_id' AND
 230                                 $query_limit
 231                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 232
 233                         $rows = mysql_affected_rows($link);
 234
 235                 }
 236
 237                 ccache_update($link, $feed_id, $owner_uid);
 238
 239                 if ($debug) {
 240                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 241                 }
 242         } // function purge_feed
 243
 244         function feed_purge_interval($link, $feed_id) {
 245
 246                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
 247                         WHERE id = '$feed_id'");
 248
 249                 if (db_num_rows($result) == 1) {
 250                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 251                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 252
 253                         if ($purge_interval == 0) $purge_interval = get_pref($link,
 254                                 'PURGE_OLD_DAYS', $owner_uid);
 255
 256                         return $purge_interval;
 257
 258                 } else {
 259                         return -1;
 260                 }
 261         }
 262
 263         function purge_orphans($link, $do_output = false) {
 264
 265                 // purge orphaned posts in main content table
 266                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
 267                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 268
 269                 if ($do_output) {
 270                         $rows = db_affected_rows($link, $result);
 271                         _debug("Purged $rows orphaned posts.");
 272                 }
 273         }
 274
 275         function get_feed_update_interval($link, $feed_id) {
 276                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
 277                         ttrss_feeds WHERE id = '$feed_id'");
 278
 279                 if (db_num_rows($result) == 1) {
 280                         $update_interval = db_fetch_result($result, 0, "update_interval");
 281                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 282
 283                         if ($update_interval != 0) {
 284                                 return $update_interval;
 285                         } else {
 286                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 287                         }
 288
 289                 } else {
 290                         return -1;
 291                 }
 292         }
 293
 294         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false) {
 295                 $login = urlencode($login);
 296                 $pass = urlencode($pass);
 297
 298                 if (function_exists('curl_init') && !ini_get("open_basedir")) {
 299                         $ch = curl_init($url);
 300
 301                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
 302                         curl_setopt($ch, CURLOPT_TIMEOUT, 45);
 303                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 304                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 305                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 306                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 307                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 308                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 309                         curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
 310                         curl_setopt($ch, CURLOPT_ENCODING , "gzip");
 311
 312                         if ($post_query) {
 313                                 curl_setopt($ch, CURLOPT_POST, true);
 314                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 315                         }
 316
 317                         if ($login && $pass)
 318                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 319
 320                         $contents = @curl_exec($ch);
 321
 322                         if ($contents === false) {
 323                                 curl_close($ch);
 324                                 return false;
 325                         }
 326
 327                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 328                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 329                         curl_close($ch);
 330
 331                         if ($http_code != 200 || $type && strpos($content_type, "$type") === false) {
 332                                 return false;
 333                         }
 334
 335                         return $contents;
 336                 } else {
 337                         if ($login && $pass ){
 338                                 $url_parts = array();
 339
 340                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 341
 342                                 if ($url_parts[1] && $url_parts[2]) {
 343                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 344                                 }
 345                         }
 346
 347                         return @file_get_contents($url);
 348                 }
 349
 350         }
 351
 352         /**
 353          * Try to determine the favicon URL for a feed.
 354          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 355          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 356          *
 357          * @param string $url A feed or page URL
 358          * @access public
 359          * @return mixed The favicon URL, or false if none was found.
 360          */
 361         function get_favicon_url($url) {
 362
 363                 $favicon_url = false;
 364
 365                 if ($html = @fetch_file_contents($url)) {
 366
 367                         libxml_use_internal_errors(true);
 368
 369                         $doc = new DOMDocument();
 370                         $doc->loadHTML($html);
 371                         $xpath = new DOMXPath($doc);
 372
 373                         $base = $xpath->query('/html/head/base');
 374                         foreach ($base as $b) {
 375                                 $url = $b->getAttribute("href");
 376                                 break;
 377                         }
 378
 379                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 380                         if (count($entries) > 0) {
 381                                 foreach ($entries as $entry) {
 382                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 383                                         break;
 384                                 }
 385                         }
 386                 }
 387
 388                 if (!$favicon_url)
 389                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 390
 391                 return $favicon_url;
 392         } // function get_favicon_url
 393
 394         function check_feed_favicon($site_url, $feed, $link) {
 395 #               print "FAVICON [$site_url]: $favicon_url\n";
 396
 397                 $icon_file = ICONS_DIR . "/$feed.ico";
 398
 399                 if (!file_exists($icon_file)) {
 400                         $favicon_url = get_favicon_url($site_url);
 401
 402                         if ($favicon_url) {
 403                                 $contents = fetch_file_contents($favicon_url, "image");
 404
 405                                 if ($contents) {
 406                                         $fp = @fopen($icon_file, "w");
 407
 408                                         if ($fp) {
 409                                                 fwrite($fp, $contents);
 410                                                 fclose($fp);
 411                                                 chmod($icon_file, 0644);
 412                                         }
 413                                 }
 414                         }
 415                 }
 416         }
 417
 418         function update_rss_feed($link, $feed, $ignore_daemon = false, $no_cache = false) {
 419
 420                 global $memcache;
 421
 422                 /* Update all feeds with the same URL to utilize memcache */
 423
 424                 if ($memcache) {
 425                         $result = db_query($link, "SELECT f1.id
 426                                 FROM ttrss_feeds AS f1, ttrss_feeds AS f2
 427                                 WHERE   f2.feed_url = f1.feed_url AND f2.id = '$feed'");
 428
 429                         while ($line = db_fetch_assoc($result)) {
 430                                 update_rss_feed_real($link, $line["id"], $ignore_daemon, $no_cache);
 431                         }
 432                 } else {
 433                         update_rss_feed_real($link, $feed, $ignore_daemon, $no_cache);
 434                 }
 435         }
 436
 437         function update_rss_feed_real($link, $feed, $ignore_daemon = false, $no_cache = false,
 438                 $override_url = false) {
 439
 440                 global $memcache;
 441
 442                 $debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
 443
 444                 if (!$_REQUEST["daemon"] && !$ignore_daemon) {
 445                         return false;
 446                 }
 447
 448                 if ($debug_enabled) {
 449                         _debug("update_rss_feed: start");
 450                 }
 451
 452                 if (!$ignore_daemon) {
 453
 454                         if (DB_TYPE == "pgsql") {
 455                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
 456                                 } else {
 457                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
 458                                 }
 459
 460                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 461                                 auth_pass,cache_images,update_method
 462                                 FROM ttrss_feeds WHERE id = '$feed' AND $updstart_thresh_qpart");
 463
 464                 } else {
 465
 466                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 467                                 feed_url,auth_pass,cache_images,update_method,last_updated,
 468                                 mark_unread_on_update, owner_uid, update_on_checksum_change,
 469                                 pubsub_state
 470                                 FROM ttrss_feeds WHERE id = '$feed'");
 471
 472                 }
 473
 474                 if (db_num_rows($result) == 0) {
 475                         if ($debug_enabled) {
 476                                 _debug("update_rss_feed: feed $feed NOT FOUND/SKIPPED");
 477                         }
 478                         return false;
 479                 }
 480
 481                 $update_method = db_fetch_result($result, 0, "update_method");
 482                 $last_updated = db_fetch_result($result, 0, "last_updated");
 483                 $owner_uid = db_fetch_result($result, 0, "owner_uid");
 484                 $mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
 485                         0, "mark_unread_on_update"));
 486                 $update_on_checksum_change = sql_bool_to_bool(db_fetch_result($result,
 487                         0, "update_on_checksum_change"));
 488                 $pubsub_state = db_fetch_result($result, 0, "pubsub_state");
 489
 490                 db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
 491                         WHERE id = '$feed'");
 492
 493                 $auth_login = db_fetch_result($result, 0, "auth_login");
 494                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
 495
 496                 if ($update_method == 0)
 497                         $update_method = DEFAULT_UPDATE_METHOD + 1;
 498
 499                 // 1 - Magpie
 500                 // 2 - SimplePie
 501                 // 3 - Twitter OAuth
 502
 503                 if ($update_method == 2)
 504                         $use_simplepie = true;
 505                 else
 506                         $use_simplepie = false;
 507
 508                 if ($debug_enabled) {
 509                         _debug("update method: $update_method (feed setting: $update_method) (use simplepie: $use_simplepie)\n");
 510                 }
 511
 512                 if ($update_method == 1) {
 513                         $auth_login = urlencode($auth_login);
 514                         $auth_pass = urlencode($auth_pass);
 515                 }
 516
 517                 $update_interval = db_fetch_result($result, 0, "update_interval");
 518                 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
 519                 $fetch_url = db_fetch_result($result, 0, "feed_url");
 520
 521                 if ($update_interval < 0) { return false; }
 522
 523                 $feed = db_escape_string($feed);
 524
 525                 if ($auth_login && $auth_pass ){
 526                         $url_parts = array();
 527                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 528
 529                         if ($url_parts[1] && $url_parts[2]) {
 530                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 531                         }
 532
 533                 }
 534
 535                 if ($override_url)
 536                         $fetch_url = $override_url;
 537
 538                 if ($debug_enabled) {
 539                         _debug("update_rss_feed: fetching [$fetch_url]...");
 540                 }
 541
 542                 $obj_id = md5("FDATA:$use_simplepie:$fetch_url");
 543
 544                 if ($memcache && $obj = $memcache->get($obj_id)) {
 545
 546                         if ($debug_enabled) {
 547                                 _debug("update_rss_feed: data found in memcache.");
 548                         }
 549
 550                         $rss = $obj;
 551
 552                 } else {
 553
 554                         if ($update_method == 3) {
 555                                 $rss = fetch_twitter_rss($link, $fetch_url, $owner_uid);
 556                         } else if ($update_method == 1) {
 557
 558                                 define('MAGPIE_CACHE_AGE', get_feed_update_interval($link, $feed) * 60);
 559                                 define('MAGPIE_CACHE_ON', !$no_cache);
 560                                 define('MAGPIE_FETCH_TIME_OUT', 60);
 561                                 define('MAGPIE_CACHE_DIR', CACHE_DIR . "/magpie");
 562
 563                                 $rss = @fetch_rss($fetch_url);
 564                         } else {
 565                                 $simplepie_cache_dir = CACHE_DIR . "/simplepie";
 566
 567                                 if (!is_dir($simplepie_cache_dir)) {
 568                                         mkdir($simplepie_cache_dir);
 569                                 }
 570
 571                                 $rss = new SimplePie();
 572                                 $rss->set_useragent(SELF_USER_AGENT);
 573         #                       $rss->set_timeout(10);
 574                                 $rss->set_feed_url($fetch_url);
 575                                 $rss->set_output_encoding('UTF-8');
 576                                 $rss->force_feed(true);
 577
 578                                 if (SIMPLEPIE_CACHE_IMAGES && $cache_images) {
 579
 580                                         if ($debug_enabled) {
 581                                                 _debug("enabling image cache");
 582                                         }
 583
 584                                         $rss->set_image_handler("image.php", 'i');
 585                                 }
 586
 587                                 if ($debug_enabled) {
 588                                         _debug("feed update interval (sec): " .
 589                                                 get_feed_update_interval($link, $feed)*60);
 590                                 }
 591
 592                                 $rss->enable_cache(!$no_cache);
 593
 594                                 if (!$no_cache) {
 595                                         $rss->set_cache_location($simplepie_cache_dir);
 596                                         $rss->set_cache_duration(get_feed_update_interval($link, $feed) * 60);
 597                                 }
 598
 599                                 $rss->init();
 600                         }
 601
 602                         if ($memcache && $rss) $memcache->add($obj_id, $rss, 0, 300);
 603                 }
 604
 605 //              print_r($rss);
 606
 607                 if ($debug_enabled) {
 608                         _debug("update_rss_feed: fetch done, parsing...");
 609                 }
 610
 611                 $feed = db_escape_string($feed);
 612
 613                 if ($update_method == 2) {
 614                         $fetch_ok = !$rss->error();
 615                 } else {
 616                         $fetch_ok = !!$rss;
 617                 }
 618
 619                 if ($fetch_ok) {
 620
 621                         if ($debug_enabled) {
 622                                 _debug("update_rss_feed: processing feed data...");
 623                         }
 624
 625 //                      db_query($link, "BEGIN");
 626
 627                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 628                                 FROM ttrss_feeds WHERE id = '$feed'");
 629
 630                         $registered_title = db_fetch_result($result, 0, "title");
 631                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 632                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 633
 634                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 635
 636                         if ($use_simplepie) {
 637                                 $site_url = $rss->get_link();
 638                         } else {
 639                                 $site_url = $rss->channel["link"];
 640                         }
 641
 642                         $site_url = rewrite_relative_url($fetch_url, $site_url);
 643
 644                         if ($debug_enabled) {
 645                                 _debug("update_rss_feed: checking favicon...");
 646                         }
 647
 648                         check_feed_favicon($site_url, $feed, $link);
 649
 650                         if (!$registered_title || $registered_title == "[Unknown]") {
 651
 652                                 if ($use_simplepie) {
 653                                         $feed_title = db_escape_string($rss->get_title());
 654                                 } else {
 655                                         $feed_title = db_escape_string($rss->channel["title"]);
 656                                 }
 657
 658                                 if ($debug_enabled) {
 659                                         _debug("update_rss_feed: registering title: $feed_title");
 660                                 }
 661
 662                                 db_query($link, "UPDATE ttrss_feeds SET
 663                                         title = '$feed_title' WHERE id = '$feed'");
 664                         }
 665
 666                         // weird, weird Magpie
 667                         if (!$use_simplepie) {
 668                                 if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 669                         }
 670
 671                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 672                                 db_query($link, "UPDATE ttrss_feeds SET
 673                                         site_url = '$site_url' WHERE id = '$feed'");
 674                         }
 675
 676 //                      print "I: " . $rss->channel["image"]["url"];
 677
 678                         if (!$use_simplepie) {
 679                                 $icon_url = db_escape_string($rss->image["url"]);
 680                         } else {
 681                                 $icon_url = db_escape_string($rss->get_image_url());
 682                         }
 683
 684                         $icon_url = substr($icon_url, 0, 250);
 685
 686                         if ($icon_url && $orig_icon_url != $icon_url) {
 687                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 688                         }
 689
 690                         if ($debug_enabled) {
 691                                 _debug("update_rss_feed: loading filters...");
 692                         }
 693
 694                         $filters = load_filters($link, $feed, $owner_uid);
 695
 696 //                      if ($debug_enabled) {
 697 //                              print_r($filters);
 698 //                      }
 699
 700                         if ($use_simplepie) {
 701                                 $iterator = $rss->get_items();
 702                         } else {
 703                                 $iterator = $rss->items;
 704                                 if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
 705                                 if (!$iterator || !is_array($iterator)) $iterator = $rss;
 706                         }
 707
 708                         if (!is_array($iterator)) {
 709                                 /* db_query($link, "UPDATE ttrss_feeds
 710                                         SET last_error = 'Parse error: can\'t find any articles.'
 711                                         WHERE id = '$feed'"); */
 712
 713                                 // clear any errors and mark feed as updated if fetched okay
 714                                 // even if it's blank
 715
 716                                 if ($debug_enabled) {
 717                                         _debug("update_rss_feed: entry iterator is not an array, no articles?");
 718                                 }
 719
 720                                 db_query($link, "UPDATE ttrss_feeds
 721                                         SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 722
 723                                 return; // no articles
 724                         }
 725
 726                         if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
 727
 728                                 if ($debug_enabled) _debug("update_rss_feed: checking for PUSH hub...");
 729
 730                                 $feed_hub_url = false;
 731                                 if ($use_simplepie) {
 732                                         $links = $rss->get_links('hub');
 733
 734                                         if ($links && is_array($links)) {
 735                                                 foreach ($links as $l) {
 736                                                         $feed_hub_url = $l;
 737                                                         break;
 738                                                 }
 739                                         }
 740
 741                                 } else {
 742                                         $atom = $rss->channel['atom'];
 743
 744                                         if ($atom) {
 745                                                 if ($atom['link@rel'] == 'hub') {
 746                                                         $feed_hub_url = $atom['link@href'];
 747                                                 }
 748
 749                                                 if (!$feed_hub_url && $atom['link#'] > 1) {
 750                                                         for ($i = 2; $i <= $atom['link#']; $i++) {
 751                                                                 if ($atom["link#$i@rel"] == 'hub') {
 752                                                                         $feed_hub_url = $atom["link#$i@href"];
 753                                                                         break;
 754                                                                 }
 755                                                         }
 756                                                 }
 757                                         } else {
 758                                                 $feed_hub_url = $rss->channel['link_hub'];
 759                                         }
 760                                 }
 761
 762                                 if ($debug_enabled) _debug("update_rss_feed: feed hub url: $feed_hub_url");
 763
 764                                 if ($feed_hub_url && function_exists('curl_init') &&
 765                                         !ini_get("open_basedir")) {
 766
 767                                         $callback_url = get_self_url_prefix() .
 768                                                 "/public.php?op=pubsub&id=$feed";
 769
 770                                         $s = new Subscriber($feed_hub_url, $callback_url);
 771
 772                                         $rc = $s->subscribe($fetch_url);
 773
 774                                         if ($debug_enabled)
 775                                                 _debug("update_rss_feed: feed hub url found, subscribe request sent.");
 776
 777                                         db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 1
 778                                                 WHERE id = '$feed'");
 779                                 }
 780                         }
 781
 782                         if ($debug_enabled) {
 783                                 _debug("update_rss_feed: processing articles...");
 784                         }
 785
 786                         foreach ($iterator as $item) {
 787
 788                                 if ($_REQUEST['xdebug'] == 2) {
 789                                         print_r($item);
 790                                 }
 791
 792                                 if ($use_simplepie) {
 793                                         $entry_guid = $item->get_id();
 794                                         if (!$entry_guid) $entry_guid = $item->get_link();
 795                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
 796
 797                                 } else {
 798
 799                                         $entry_guid = $item["id"];
 800
 801                                         if (!$entry_guid) $entry_guid = $item["guid"];
 802                                         if (!$entry_guid) $entry_guid = $item["about"];
 803                                         if (!$entry_guid) $entry_guid = $item["link"];
 804                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
 805                                 }
 806
 807                                 if ($debug_enabled) {
 808                                         _debug("update_rss_feed: guid $entry_guid");
 809                                 }
 810
 811                                 if (!$entry_guid) continue;
 812
 813                                 $entry_timestamp = "";
 814
 815                                 if ($use_simplepie) {
 816                                         $entry_timestamp = strtotime($item->get_date());
 817                                 } else {
 818                                         $rss_2_date = $item['pubdate'];
 819                                         $rss_1_date = $item['dc']['date'];
 820                                         $atom_date = $item['issued'];
 821                                         if (!$atom_date) $atom_date = $item['updated'];
 822
 823                                         if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 824                                         if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 825                                         if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 826
 827                                 }
 828
 829                                 if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
 830                                         $entry_timestamp = time();
 831                                         $no_orig_date = 'true';
 832                                 } else {
 833                                         $no_orig_date = 'false';
 834                                 }
 835
 836                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 837
 838                                 if ($debug_enabled) {
 839                                         _debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
 840                                 }
 841
 842                                 if ($use_simplepie) {
 843                                         $entry_title = $item->get_title();
 844                                 } else {
 845                                         $entry_title = trim(strip_tags($item["title"]));
 846                                 }
 847
 848                                 if ($use_simplepie) {
 849                                         $entry_link = $item->get_link();
 850                                 } else {
 851                                         // strange Magpie workaround
 852                                         $entry_link = $item["link_"];
 853                                         if (!$entry_link) $entry_link = $item["link"];
 854                                 }
 855
 856                                 $entry_link = rewrite_relative_url($site_url, $entry_link);
 857
 858                                 if ($debug_enabled) {
 859                                         _debug("update_rss_feed: title $entry_title");
 860                                         _debug("update_rss_feed: link $entry_link");
 861                                 }
 862
 863                                 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
 864
 865                                 $entry_link = strip_tags($entry_link);
 866
 867                                 if ($use_simplepie) {
 868                                         $entry_content = $item->get_content();
 869                                         if (!$entry_content) $entry_content = $item->get_description();
 870                                 } else {
 871                                         $entry_content = $item["content:escaped"];
 872
 873                                         if (!$entry_content) $entry_content = $item["content:encoded"];
 874                                         if (!$entry_content) $entry_content = $item["content"]["encoded"];
 875                                         if (!$entry_content) $entry_content = $item["content"];
 876
 877                                         // Magpie bugs are getting ridiculous
 878                                         if (trim($entry_content) == "Array") $entry_content = false;
 879
 880                                         if (!$entry_content) $entry_content = $item["atom_content"];
 881                                         if (!$entry_content) $entry_content = $item["summary"];
 882
 883                                         if (!$entry_content ||
 884                                                 strlen($entry_content) < strlen($item["description"])) {
 885                                                         $entry_content = $item["description"];
 886                                         };
 887
 888                                         // WTF
 889                                         if (is_array($entry_content)) {
 890                                                 $entry_content = $entry_content["encoded"];
 891                                                 if (!$entry_content) $entry_content = $entry_content["escaped"];
 892                                         }
 893                                 }
 894
 895                                 if ($_REQUEST["xdebug"] == 2) {
 896                                         print "update_rss_feed: content: ";
 897                                         print_r(htmlspecialchars($entry_content));
 898                                 }
 899
 900                                 $entry_content_unescaped = $entry_content;
 901
 902                                 if ($use_simplepie) {
 903                                         $entry_comments = strip_tags($item->data["comments"]);
 904                                         if ($item->get_author()) {
 905                                                 $entry_author_item = $item->get_author();
 906                                                 $entry_author = $entry_author_item->get_name();
 907                                                 if (!$entry_author) $entry_author = $entry_author_item->get_email();
 908
 909                                                 $entry_author = db_escape_string($entry_author);
 910                                         }
 911                                 } else {
 912                                         $entry_comments = strip_tags($item["comments"]);
 913
 914                                         $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
 915
 916                                         if ($item['author']) {
 917
 918                                                 if (is_array($item['author'])) {
 919
 920                                                         if (!$entry_author) {
 921                                                                 $entry_author = db_escape_string(strip_tags($item['author']['name']));
 922                                                         }
 923
 924                                                         if (!$entry_author) {
 925                                                                 $entry_author = db_escape_string(strip_tags($item['author']['email']));
 926                                                         }
 927                                                 }
 928
 929                                                 if (!$entry_author) {
 930                                                         $entry_author = db_escape_string(strip_tags($item['author']));
 931                                                 }
 932                                         }
 933                                 }
 934
 935                                 if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
 936
 937                                 $entry_guid = db_escape_string(strip_tags($entry_guid));
 938                                 $entry_guid = mb_substr($entry_guid, 0, 250);
 939
 940                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 941                                         WHERE guid = '$entry_guid'");
 942
 943                                 $entry_content = db_escape_string($entry_content, false);
 944
 945                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 946
 947                                 $entry_title = db_escape_string($entry_title);
 948                                 $entry_link = db_escape_string($entry_link);
 949                                 $entry_comments = mb_substr(db_escape_string($entry_comments), 0, 250);
 950                                 $entry_author = mb_substr($entry_author, 0, 250);
 951
 952                                 if ($use_simplepie) {
 953                                         $num_comments = 0; #FIXME#
 954                                 } else {
 955                                         $num_comments = db_escape_string($item["slash"]["comments"]);
 956                                 }
 957
 958                                 if (!$num_comments) $num_comments = 0;
 959
 960                                 if ($debug_enabled) {
 961                                         _debug("update_rss_feed: looking for tags [1]...");
 962                                 }
 963
 964                                 // parse <category> entries into tags
 965
 966                                 $additional_tags = array();
 967
 968                                 if ($use_simplepie) {
 969
 970                                         $additional_tags_src = $item->get_categories();
 971
 972                                         if (is_array($additional_tags_src)) {
 973                                                 foreach ($additional_tags_src as $tobj) {
 974                                                         array_push($additional_tags, $tobj->get_term());
 975                                                 }
 976                                         }
 977
 978                                         if ($debug_enabled) {
 979                                                 _debug("update_rss_feed: category tags:");
 980                                                 print_r($additional_tags);
 981                                         }
 982
 983                                 } else {
 984
 985                                         $t_ctr = $item['category#'];
 986
 987                                         if ($t_ctr == 0) {
 988                                                 $additional_tags = array();
 989                                         } else if ($t_ctr > 0) {
 990                                                 $additional_tags = array($item['category']);
 991
 992                                                 if ($item['category@term']) {
 993                                                         array_push($additional_tags, $item['category@term']);
 994                                                 }
 995
 996                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
 997                                                         if ($item["category#$i"]) {
 998                                                                 array_push($additional_tags, $item["category#$i"]);
 999                                                         }
1000
1001                                                         if ($item["category#$i@term"]) {
1002                                                                 array_push($additional_tags, $item["category#$i@term"]);
1003                                                         }
1004                                                 }
1005                                         }
1006
1007                                         // parse <dc:subject> elements
1008
1009                                         $t_ctr = $item['dc']['subject#'];
1010
1011                                         if ($t_ctr > 0) {
1012                                                 array_push($additional_tags, $item['dc']['subject']);
1013
1014                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
1015                                                         if ($item['dc']["subject#$i"]) {
1016                                                                 array_push($additional_tags, $item['dc']["subject#$i"]);
1017                                                         }
1018                                                 }
1019                                         }
1020                                 }
1021
1022                                 if ($debug_enabled) {
1023                                         _debug("update_rss_feed: looking for tags [2]...");
1024                                 }
1025
1026                                 /* taaaags */
1027                                 // <a href="..." rel="tag">Xorg</a>, //
1028
1029                                 $entry_tags = null;
1030
1031                                 preg_match_all("/<a.*?rel=['\"]tag['\"].*?\>([^<]+)<\/a>/i",
1032                                         $entry_content_unescaped, $entry_tags);
1033
1034                                 $entry_tags = $entry_tags[1];
1035
1036                                 $entry_tags = array_merge($entry_tags, $additional_tags);
1037                                 $entry_tags = array_unique($entry_tags);
1038
1039                                 for ($i = 0; $i < count($entry_tags); $i++)
1040                                         $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
1041
1042                                 if ($debug_enabled) {
1043                                         _debug("update_rss_feed: unfiltered tags found:");
1044                                         print_r($entry_tags);
1045                                 }
1046
1047                                 # sanitize content
1048
1049                                 $entry_content = sanitize_article_content($entry_content);
1050                                 $entry_title = sanitize_article_content($entry_title);
1051
1052                                 if ($debug_enabled) {
1053                                         _debug("update_rss_feed: done collecting data [TITLE:$entry_title]");
1054                                 }
1055
1056                                 db_query($link, "BEGIN");
1057
1058                                 if (db_num_rows($result) == 0) {
1059
1060                                         if ($debug_enabled) {
1061                                                 _debug("update_rss_feed: base guid not found");
1062                                         }
1063
1064                                         // base post entry does not exist, create it
1065
1066                                         $result = db_query($link,
1067                                                 "INSERT INTO ttrss_entries
1068                                                         (title,
1069                                                         guid,
1070                                                         link,
1071                                                         updated,
1072                                                         content,
1073                                                         content_hash,
1074                                                         no_orig_date,
1075                                                         date_updated,
1076                                                         date_entered,
1077                                                         comments,
1078                                                         num_comments,
1079                                                         author)
1080                                                 VALUES
1081                                                         ('$entry_title',
1082                                                         '$entry_guid',
1083                                                         '$entry_link',
1084                                                         '$entry_timestamp_fmt',
1085                                                         '$entry_content',
1086                                                         '$content_hash',
1087                                                         $no_orig_date,
1088                                                         NOW(),
1089                                                         NOW(),
1090                                                         '$entry_comments',
1091                                                         '$num_comments',
1092                                                         '$entry_author')");
1093                                 } else {
1094                                         // we keep encountering the entry in feeds, so we need to
1095                                         // update date_updated column so that we don't get horrible
1096                                         // dupes when the entry gets purged and reinserted again e.g.
1097                                         // in the case of SLOW SLOW OMG SLOW updating feeds
1098
1099                                         $base_entry_id = db_fetch_result($result, 0, "id");
1100
1101                                         db_query($link, "UPDATE ttrss_entries SET date_updated = NOW()
1102                                                 WHERE id = '$base_entry_id'");
1103                                 }
1104
1105                                 // now it should exist, if not - bad luck then
1106
1107                                 $result = db_query($link, "SELECT
1108                                                 id,content_hash,no_orig_date,title,
1109                                                 ".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
1110                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
1111                                                 num_comments
1112                                         FROM
1113                                                 ttrss_entries
1114                                         WHERE guid = '$entry_guid'");
1115
1116                                 $entry_ref_id = 0;
1117                                 $entry_int_id = 0;
1118
1119                                 if (db_num_rows($result) == 1) {
1120
1121                                         if ($debug_enabled) {
1122                                                 _debug("update_rss_feed: base guid found, checking for user record");
1123                                         }
1124
1125                                         // this will be used below in update handler
1126                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
1127                                         $orig_title = db_fetch_result($result, 0, "title");
1128                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
1129                                         $orig_date_updated = strtotime(db_fetch_result($result,
1130                                                 0, "date_updated"));
1131
1132                                         $ref_id = db_fetch_result($result, 0, "id");
1133                                         $entry_ref_id = $ref_id;
1134
1135                                         // check for user post link to main table
1136
1137                                         // do we allow duplicate posts with same GUID in different feeds?
1138                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
1139                                                 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
1140                                         } else {
1141                                                 $dupcheck_qpart = "";
1142                                         }
1143
1144                                         /* Collect article tags here so we could filter by them: */
1145
1146                                         $article_filters = get_article_filters($filters, $entry_title,
1147                                                 $entry_content, $entry_link, $entry_timestamp, $entry_author,
1148                                                 $entry_tags);
1149
1150                                         if ($debug_enabled) {
1151                                                 _debug("update_rss_feed: article filters: ");
1152                                                 if (count($article_filters) != 0) {
1153                                                         print_r($article_filters);
1154                                                 }
1155                                         }
1156
1157                                         if (find_article_filter($article_filters, "filter")) {
1158                                                 db_query($link, "COMMIT"); // close transaction in progress
1159                                                 continue;
1160                                         }
1161
1162                                         $score = calculate_article_score($article_filters);
1163
1164                                         if ($debug_enabled) {
1165                                                 _debug("update_rss_feed: initial score: $score");
1166                                         }
1167
1168                                         $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
1169                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
1170                                                         $dupcheck_qpart";
1171
1172 //                                      if ($_REQUEST["xdebug"]) print "$query\n";
1173
1174                                         $result = db_query($link, $query);
1175
1176                                         // okay it doesn't exist - create user entry
1177                                         if (db_num_rows($result) == 0) {
1178
1179                                                 if ($debug_enabled) {
1180                                                         _debug("update_rss_feed: user record not found, creating...");
1181                                                 }
1182
1183                                                 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
1184                                                         $unread = 'true';
1185                                                         $last_read_qpart = 'NULL';
1186                                                 } else {
1187                                                         $unread = 'false';
1188                                                         $last_read_qpart = 'NOW()';
1189                                                 }
1190
1191                                                 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
1192                                                         $marked = 'true';
1193                                                 } else {
1194                                                         $marked = 'false';
1195                                                 }
1196
1197                                                 if (find_article_filter($article_filters, 'publish')) {
1198                                                         $published = 'true';
1199                                                 } else {
1200                                                         $published = 'false';
1201                                                 }
1202
1203                                                 $result = db_query($link,
1204                                                         "INSERT INTO ttrss_user_entries
1205                                                                 (ref_id, owner_uid, feed_id, unread, last_read, marked,
1206                                                                         published, score, tag_cache, label_cache, uuid)
1207                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
1208                                                                 $last_read_qpart, $marked, $published, '$score', '', '', '')");
1209
1210                                                 if (PUBSUBHUBBUB_HUB && $published == 'true') {
1211                                                         $rss_link = get_self_url_prefix() .
1212                                                                 "/public.php?op=rss&id=-2&key=" .
1213                                                                 get_feed_access_key($link, -2, false, $owner_uid);
1214
1215                                                         $p = new Publisher(PUBSUBHUBBUB_HUB);
1216
1217                                                         $pubsub_result = $p->publish_update($rss_link);
1218                                                 }
1219
1220                                                 $result = db_query($link,
1221                                                         "SELECT int_id FROM ttrss_user_entries WHERE
1222                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
1223                                                                 feed_id = '$feed' LIMIT 1");
1224
1225                                                 if (db_num_rows($result) == 1) {
1226                                                         $entry_int_id = db_fetch_result($result, 0, "int_id");
1227                                                 }
1228                                         } else {
1229                                                 if ($debug_enabled) {
1230                                                         _debug("update_rss_feed: user record FOUND");
1231                                                 }
1232
1233                                                 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
1234                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
1235                                         }
1236
1237                                         if ($debug_enabled) {
1238                                                 _debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
1239                                         }
1240
1241                                         $post_needs_update = false;
1242                                         $update_insignificant = false;
1243
1244                                         if ($orig_num_comments != $num_comments) {
1245                                                 $post_needs_update = true;
1246                                                 $update_insignificant = true;
1247                                         }
1248
1249                                         if ($content_hash != $orig_content_hash) {
1250                                                 $post_needs_update = true;
1251                                                 $update_insignificant = false;
1252                                         }
1253
1254                                         if (db_escape_string($orig_title) != $entry_title) {
1255                                                 $post_needs_update = true;
1256                                                 $update_insignificant = false;
1257                                         }
1258
1259                                         // if post needs update, update it and mark all user entries
1260                                         // linking to this post as updated
1261                                         if ($post_needs_update) {
1262
1263                                                 if (defined('DAEMON_EXTENDED_DEBUG')) {
1264                                                         _debug("update_rss_feed: post $entry_guid needs update...");
1265                                                 }
1266
1267 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
1268
1269                                                 db_query($link, "UPDATE ttrss_entries
1270                                                         SET title = '$entry_title', content = '$entry_content',
1271                                                                 content_hash = '$content_hash',
1272                                                                 updated = '$entry_timestamp_fmt',
1273                                                                 num_comments = '$num_comments'
1274                                                         WHERE id = '$ref_id'");
1275
1276                                                 if (!$update_insignificant) {
1277                                                         if ($mark_unread_on_update) {
1278                                                                 db_query($link, "UPDATE ttrss_user_entries
1279                                                                         SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
1280                                                         } else if ($update_on_checksum_change) {
1281                                                                 db_query($link, "UPDATE ttrss_user_entries
1282                                                                         SET last_read = null WHERE ref_id = '$ref_id'
1283                                                                                 AND unread = false");
1284                                                         }
1285                                                 }
1286                                         }
1287                                 }
1288
1289                                 db_query($link, "COMMIT");
1290
1291                                 if ($debug_enabled) {
1292                                         _debug("update_rss_feed: assigning labels...");
1293                                 }
1294
1295                                 assign_article_to_labels($link, $entry_ref_id, $article_filters,
1296                                         $owner_uid);
1297
1298                                 if ($debug_enabled) {
1299                                         _debug("update_rss_feed: looking for enclosures...");
1300                                 }
1301
1302                                 // enclosures
1303
1304                                 $enclosures = array();
1305
1306                                 if ($use_simplepie) {
1307                                         $encs = $item->get_enclosures();
1308
1309                                         if (is_array($encs)) {
1310                                                 foreach ($encs as $e) {
1311                                                         $e_item = array(
1312                                                                 $e->link, $e->type, $e->length);
1313
1314                                                         array_push($enclosures, $e_item);
1315                                                 }
1316                                         }
1317
1318                                 } else {
1319                                         // <enclosure>
1320
1321                                         $e_ctr = $item['enclosure#'];
1322
1323                                         if ($e_ctr > 0) {
1324                                                 $e_item = array($item['enclosure@url'],
1325                                                         $item['enclosure@type'],
1326                                                         $item['enclosure@length']);
1327
1328                                                 array_push($enclosures, $e_item);
1329
1330                                                 for ($i = 0; $i <= $e_ctr; $i++ ) {
1331
1332                                                         if ($item["enclosure#$i@url"]) {
1333                                                                 $e_item = array($item["enclosure#$i@url"],
1334                                                                         $item["enclosure#$i@type"],
1335                                                                         $item["enclosure#$i@length"]);
1336                                                                 array_push($enclosures, $e_item);
1337                                                         }
1338                                                 }
1339                                         }
1340
1341                                         // <media:content>
1342                                         // can there be many of those? yes -fox
1343
1344                                         $m_ctr = $item['media']['content#'];
1345
1346                                         if ($m_ctr > 0) {
1347                                                 $e_item = array($item['media']['content@url'],
1348                                                         $item['media']['content@medium'],
1349                                                         $item['media']['content@length']);
1350
1351                                                 array_push($enclosures, $e_item);
1352
1353                                                 for ($i = 0; $i <= $m_ctr; $i++ ) {
1354
1355                                                         if ($item["media"]["content#$i@url"]) {
1356                                                                 $e_item = array($item["media"]["content#$i@url"],
1357                                                                         $item["media"]["content#$i@medium"],
1358                                                                         $item["media"]["content#$i@length"]);
1359                                                                 array_push($enclosures, $e_item);
1360                                                         }
1361                                                 }
1362
1363                                         }
1364                                 }
1365
1366
1367                                 if ($debug_enabled) {
1368                                         _debug("update_rss_feed: article enclosures:");
1369                                         print_r($enclosures);
1370                                 }
1371
1372                                 db_query($link, "BEGIN");
1373
1374                                 foreach ($enclosures as $enc) {
1375                                         $enc_url = db_escape_string($enc[0]);
1376                                         $enc_type = db_escape_string($enc[1]);
1377                                         $enc_dur = db_escape_string($enc[2]);
1378
1379                                         $result = db_query($link, "SELECT id FROM ttrss_enclosures
1380                                                 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1381
1382                                         if (db_num_rows($result) == 0) {
1383                                                 db_query($link, "INSERT INTO ttrss_enclosures
1384                                                         (content_url, content_type, title, duration, post_id) VALUES
1385                                                         ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
1386                                         }
1387                                 }
1388
1389                                 db_query($link, "COMMIT");
1390
1391                                 // check for manual tags (we have to do it here since they're loaded from filters)
1392
1393                                 foreach ($article_filters as $f) {
1394                                         if ($f[0] == "tag") {
1395
1396                                                 $manual_tags = trim_array(explode(",", $f[1]));
1397
1398                                                 foreach ($manual_tags as $tag) {
1399                                                         if (tag_is_valid($tag)) {
1400                                                                 array_push($entry_tags, $tag);
1401                                                         }
1402                                                 }
1403                                         }
1404                                 }
1405
1406                                 // Skip boring tags
1407
1408                                 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref($link,
1409                                         'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1410
1411                                 $filtered_tags = array();
1412                                 $tags_to_cache = array();
1413
1414                                 if ($entry_tags && is_array($entry_tags)) {
1415                                         foreach ($entry_tags as $tag) {
1416                                                 if (array_search($tag, $boring_tags) === false) {
1417                                                         array_push($filtered_tags, $tag);
1418                                                 }
1419                                         }
1420                                 }
1421
1422                                 $filtered_tags = array_unique($filtered_tags);
1423
1424                                 if ($debug_enabled) {
1425                                         _debug("update_rss_feed: filtered article tags:");
1426                                         print_r($filtered_tags);
1427                                 }
1428
1429                                 // Save article tags in the database
1430
1431                                 if (count($filtered_tags) > 0) {
1432
1433                                         db_query($link, "BEGIN");
1434
1435                                         foreach ($filtered_tags as $tag) {
1436
1437                                                 $tag = sanitize_tag($tag);
1438                                                 $tag = db_escape_string($tag);
1439
1440                                                 if (!tag_is_valid($tag)) continue;
1441
1442                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
1443                                                         WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1444                                                         owner_uid = '$owner_uid' LIMIT 1");
1445
1446                                                         if ($result && db_num_rows($result) == 0) {
1447
1448                                                                 db_query($link, "INSERT INTO ttrss_tags
1449                                                                         (owner_uid,tag_name,post_int_id)
1450                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
1451                                                         }
1452
1453                                                 array_push($tags_to_cache, $tag);
1454                                         }
1455
1456                                         /* update the cache */
1457
1458                                         $tags_to_cache = array_unique($tags_to_cache);
1459
1460                                         $tags_str = db_escape_string(join(",", $tags_to_cache));
1461
1462                                         db_query($link, "UPDATE ttrss_user_entries
1463                                                 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1464                                                 AND owner_uid = $owner_uid");
1465
1466                                         db_query($link, "COMMIT");
1467                                 }
1468
1469                                 if ($debug_enabled) {
1470                                         _debug("update_rss_feed: article processed");
1471                                 }
1472                         }
1473
1474                         if (!$last_updated) {
1475                                 if ($debug_enabled) {
1476                                         _debug("update_rss_feed: new feed, catching it up...");
1477                                 }
1478                                 catchup_feed($link, $feed, false, $owner_uid);
1479                         }
1480
1481                         if ($debug_enabled) {
1482                                 _debug("purging feed...");
1483                         }
1484
1485                         purge_feed($link, $feed, 0, $debug_enabled);
1486
1487                         db_query($link, "UPDATE ttrss_feeds
1488                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1489
1490 //                      db_query($link, "COMMIT");
1491
1492                 } else {
1493
1494                         if ($use_simplepie) {
1495                                 $error_msg = mb_substr($rss->error(), 0, 250);
1496                         } else {
1497                                 $error_msg = mb_substr(magpie_error(), 0, 250);
1498                         }
1499
1500                         if ($debug_enabled) {
1501                                 _debug("update_rss_feed: error fetching feed: $error_msg");
1502                         }
1503
1504                         $error_msg = db_escape_string($error_msg);
1505
1506                         db_query($link,
1507                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1508                                         last_updated = NOW() WHERE id = '$feed'");
1509                 }
1510
1511                 if ($use_simplepie) {
1512                         unset($rss);
1513                 }
1514
1515                 if ($debug_enabled) {
1516                         _debug("update_rss_feed: done");
1517                 }
1518
1519         }
1520
1521         function print_select($id, $default, $values, $attributes = "") {
1522                 print "<select name=\"$id\" id=\"$id\" $attributes>";
1523                 foreach ($values as $v) {
1524                         if ($v == $default)
1525                                 $sel = "selected=\"1\"";
1526                          else
1527                                 $sel = "";
1528
1529                         print "<option value=\"$v\" $sel>$v</option>";
1530                 }
1531                 print "</select>";
1532         }
1533
1534         function print_select_hash($id, $default, $values, $attributes = "") {
1535                 print "<select name=\"$id\" id='$id' $attributes>";
1536                 foreach (array_keys($values) as $v) {
1537                         if ($v == $default)
1538                                 $sel = 'selected="selected"';
1539                          else
1540                                 $sel = "";
1541
1542                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
1543                 }
1544
1545                 print "</select>";
1546         }
1547
1548         function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1549                 $matches = array();
1550
1551                 if ($filters["title"]) {
1552                         foreach ($filters["title"] as $filter) {
1553                                 $reg_exp = $filter["reg_exp"];
1554                                 $inverse = $filter["inverse"];
1555                                 if ((!$inverse && @preg_match("/$reg_exp/i", $title)) ||
1556                                                 ($inverse && !@preg_match("/$reg_exp/i", $title))) {
1557
1558                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1559                                 }
1560                         }
1561                 }
1562
1563                 if ($filters["content"]) {
1564                         foreach ($filters["content"] as $filter) {
1565                                 $reg_exp = $filter["reg_exp"];
1566                                 $inverse = $filter["inverse"];
1567
1568                                 if ((!$inverse && @preg_match("/$reg_exp/i", $content)) ||
1569                                                 ($inverse && !@preg_match("/$reg_exp/i", $content))) {
1570
1571                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1572                                 }
1573                         }
1574                 }
1575
1576                 if ($filters["both"]) {
1577                         foreach ($filters["both"] as $filter) {
1578                                 $reg_exp = $filter["reg_exp"];
1579                                 $inverse = $filter["inverse"];
1580
1581                                 if ($inverse) {
1582                                         if (!@preg_match("/$reg_exp/i", $title) && !preg_match("/$reg_exp/i", $content)) {
1583                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1584                                         }
1585                                 } else {
1586                                         if (@preg_match("/$reg_exp/i", $title) || preg_match("/$reg_exp/i", $content)) {
1587                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1588                                         }
1589                                 }
1590                         }
1591                 }
1592
1593                 if ($filters["link"]) {
1594                         $reg_exp = $filter["reg_exp"];
1595                         foreach ($filters["link"] as $filter) {
1596                                 $reg_exp = $filter["reg_exp"];
1597                                 $inverse = $filter["inverse"];
1598
1599                                 if ((!$inverse && @preg_match("/$reg_exp/i", $link)) ||
1600                                                 ($inverse && !@preg_match("/$reg_exp/i", $link))) {
1601
1602                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1603                                 }
1604                         }
1605                 }
1606
1607                 if ($filters["date"]) {
1608                         $reg_exp = $filter["reg_exp"];
1609                         foreach ($filters["date"] as $filter) {
1610                                 $date_modifier = $filter["filter_param"];
1611                                 $inverse = $filter["inverse"];
1612                                 $check_timestamp = strtotime($filter["reg_exp"]);
1613
1614                                 # no-op when timestamp doesn't parse to prevent misfires
1615
1616                                 if ($check_timestamp) {
1617                                         $match_ok = false;
1618
1619                                         if ($date_modifier == "before" && $timestamp < $check_timestamp ||
1620                                                 $date_modifier == "after" && $timestamp > $check_timestamp) {
1621                                                         $match_ok = true;
1622                                         }
1623
1624                                         if ($inverse) $match_ok = !$match_ok;
1625
1626                                         if ($match_ok) {
1627                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1628                                         }
1629                                 }
1630                         }
1631                 }
1632
1633                 if ($filters["author"]) {
1634                         foreach ($filters["author"] as $filter) {
1635                                 $reg_exp = $filter["reg_exp"];
1636                                 $inverse = $filter["inverse"];
1637                                 if ((!$inverse && @preg_match("/$reg_exp/i", $author)) ||
1638                                                 ($inverse && !@preg_match("/$reg_exp/i", $author))) {
1639
1640                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1641                                 }
1642                         }
1643                 }
1644
1645                 if ($filters["tag"]) {
1646
1647                         $tag_string = join(",", $tags);
1648
1649                         foreach ($filters["tag"] as $filter) {
1650                                 $reg_exp = $filter["reg_exp"];
1651                                 $inverse = $filter["inverse"];
1652
1653                                 if ((!$inverse && @preg_match("/$reg_exp/i", $tag_string)) ||
1654                                                 ($inverse && !@preg_match("/$reg_exp/i", $tag_string))) {
1655
1656                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1657                                 }
1658                         }
1659                 }
1660
1661
1662                 return $matches;
1663         }
1664
1665         function find_article_filter($filters, $filter_name) {
1666                 foreach ($filters as $f) {
1667                         if ($f[0] == $filter_name) {
1668                                 return $f;
1669                         };
1670                 }
1671                 return false;
1672         }
1673
1674         function calculate_article_score($filters) {
1675                 $score = 0;
1676
1677                 foreach ($filters as $f) {
1678                         if ($f[0] == "score") {
1679                                 $score += $f[1];
1680                         };
1681                 }
1682                 return $score;
1683         }
1684
1685         function assign_article_to_labels($link, $id, $filters, $owner_uid) {
1686                 foreach ($filters as $f) {
1687                         if ($f[0] == "label") {
1688                                 label_add_article($link, $id, $f[1], $owner_uid);
1689                         };
1690                 }
1691         }
1692
1693         function getmicrotime() {
1694                 list($usec, $sec) = explode(" ",microtime());
1695                 return ((float)$usec + (float)$sec);
1696         }
1697
1698         function print_radio($id, $default, $true_is, $values, $attributes = "") {
1699                 foreach ($values as $v) {
1700
1701                         if ($v == $default)
1702                                 $sel = "checked";
1703                          else
1704                                 $sel = "";
1705
1706                         if ($v == $true_is) {
1707                                 $sel .= " value=\"1\"";
1708                         } else {
1709                                 $sel .= " value=\"0\"";
1710                         }
1711
1712                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
1713                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
1714
1715                 }
1716         }
1717
1718         function initialize_user_prefs($link, $uid, $profile = false) {
1719
1720                 $uid = db_escape_string($uid);
1721
1722                 if (!$profile) {
1723                         $profile = "NULL";
1724                         $profile_qpart = "AND profile IS NULL";
1725                 } else {
1726                         $profile_qpart = "AND profile = '$profile'";
1727                 }
1728
1729                 if (get_schema_version($link) < 63) $profile_qpart = "";
1730
1731                 db_query($link, "BEGIN");
1732
1733                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
1734
1735                 $u_result = db_query($link, "SELECT pref_name
1736                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
1737
1738                 $active_prefs = array();
1739
1740                 while ($line = db_fetch_assoc($u_result)) {
1741                         array_push($active_prefs, $line["pref_name"]);
1742                 }
1743
1744                 while ($line = db_fetch_assoc($result)) {
1745                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
1746 //                              print "adding " . $line["pref_name"] . "<br>";
1747
1748                                 if (get_schema_version($link) < 63) {
1749                                         db_query($link, "INSERT INTO ttrss_user_prefs
1750                                                 (owner_uid,pref_name,value) VALUES
1751                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
1752
1753                                 } else {
1754                                         db_query($link, "INSERT INTO ttrss_user_prefs
1755                                                 (owner_uid,pref_name,value, profile) VALUES
1756                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
1757                                 }
1758
1759                         }
1760                 }
1761
1762                 db_query($link, "COMMIT");
1763
1764         }
1765
1766         function get_ssl_certificate_id() {
1767                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
1768                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
1769                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
1770                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
1771                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
1772                 }
1773                 return "";
1774         }
1775
1776         function get_login_by_ssl_certificate($link) {
1777
1778                 $cert_serial = db_escape_string(get_ssl_certificate_id());
1779
1780                 if ($cert_serial) {
1781                         $result = db_query($link, "SELECT login FROM ttrss_user_prefs, ttrss_users
1782                                 WHERE pref_name = 'SSL_CERT_SERIAL' AND value = '$cert_serial' AND
1783                                 owner_uid = ttrss_users.id");
1784
1785                         if (db_num_rows($result) != 0) {
1786                                 return db_escape_string(db_fetch_result($result, 0, "login"));
1787                         }
1788                 }
1789
1790                 return "";
1791         }
1792
1793         function get_remote_user($link) {
1794
1795                 if (defined('ALLOW_REMOTE_USER_AUTH') && ALLOW_REMOTE_USER_AUTH) {
1796                         return db_escape_string($_SERVER["REMOTE_USER"]);
1797                 }
1798
1799                 return db_escape_string(get_login_by_ssl_certificate($link));
1800         }
1801
1802         function get_remote_fakepass($link) {
1803                 if (get_remote_user($link))
1804                         return "******";
1805                 else
1806                         return "";
1807         }
1808
1809         function authenticate_user($link, $login, $password, $force_auth = false) {
1810
1811                 if (!SINGLE_USER_MODE) {
1812
1813                         $pwd_hash1 = encrypt_password($password);
1814                         $pwd_hash2 = encrypt_password($password, $login);
1815                         $login = db_escape_string($login);
1816
1817                         $remote_user = get_remote_user($link);
1818
1819                         if ($remote_user && $remote_user == $login && $login != "admin") {
1820
1821                                 $login = $remote_user;
1822
1823                                 $query = "SELECT id,login,access_level,pwd_hash
1824                     FROM ttrss_users WHERE
1825                                         login = '$login'";
1826
1827                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER
1828                                                 && $_SERVER["REMOTE_USER"]) {
1829                                         $result = db_query($link, $query);
1830
1831                                         // First login ?
1832                                         if (db_num_rows($result) == 0) {
1833                                                 $query2 = "INSERT INTO ttrss_users
1834                                                                 (login,access_level,last_login,created)
1835                                                                 VALUES ('$login', 0, null, NOW())";
1836                                                 db_query($link, $query2);
1837                                         }
1838                                 }
1839
1840                         } else {
1841                                 $query = "SELECT id,login,access_level,pwd_hash
1842                     FROM ttrss_users WHERE
1843                                         login = '$login' AND (pwd_hash = '$pwd_hash1' OR
1844                                                 pwd_hash = '$pwd_hash2')";
1845                         }
1846
1847                         $result = db_query($link, $query);
1848
1849                         if (db_num_rows($result) == 1) {
1850                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
1851                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
1852                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
1853
1854                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
1855                                         $_SESSION["uid"]);
1856
1857
1858                                 // LemonLDAP can send user informations via HTTP HEADER
1859                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER){
1860                                         // update user name
1861                                         $fullname = $_SERVER['HTTP_USER_NAME'] ? $_SERVER['HTTP_USER_NAME'] : $_SERVER['AUTHENTICATE_CN'];
1862                                         if ($fullname){
1863                                                 $fullname = db_escape_string($fullname);
1864                                                 db_query($link, "UPDATE ttrss_users SET full_name = '$fullname' WHERE id = " .
1865                                                         $_SESSION["uid"]);
1866                                         }
1867                                         // update user mail
1868                                         $email = $_SERVER['HTTP_USER_MAIL'] ? $_SERVER['HTTP_USER_MAIL'] : $_SERVER['AUTHENTICATE_MAIL'];
1869                                         if ($email){
1870                                                 $email = db_escape_string($email);
1871                                                 db_query($link, "UPDATE ttrss_users SET email = '$email' WHERE id = " .
1872                                                         $_SESSION["uid"]);
1873                                         }
1874                                 }
1875
1876                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1877                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
1878
1879                                 $_SESSION["last_version_check"] = time();
1880
1881                                 initialize_user_prefs($link, $_SESSION["uid"]);
1882
1883                                 return true;
1884                         }
1885
1886                         return false;
1887
1888                 } else {
1889
1890                         $_SESSION["uid"] = 1;
1891                         $_SESSION["name"] = "admin";
1892
1893                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1894
1895                         initialize_user_prefs($link, $_SESSION["uid"]);
1896
1897                         return true;
1898                 }
1899         }
1900
1901         function make_password($length = 8) {
1902
1903                 $password = "";
1904                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
1905
1906         $i = 0;
1907
1908                 while ($i < $length) {
1909                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
1910
1911                         if (!strstr($password, $char)) {
1912                                 $password .= $char;
1913                                 $i++;
1914                         }
1915                 }
1916                 return $password;
1917         }
1918
1919         // this is called after user is created to initialize default feeds, labels
1920         // or whatever else
1921
1922         // user preferences are checked on every login, not here
1923
1924         function initialize_user($link, $uid) {
1925
1926                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1927                         values ('$uid', 'Tiny Tiny RSS: New Releases',
1928                         'http://tt-rss.org/releases.rss')");
1929
1930                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1931                         values ('$uid', 'Tiny Tiny RSS: Forum',
1932                                 'http://tt-rss.org/forum/rss.php')");
1933         }
1934
1935         function logout_user() {
1936                 session_destroy();
1937                 if (isset($_COOKIE[session_name()])) {
1938                    setcookie(session_name(), '', time()-42000, '/');
1939                 }
1940         }
1941
1942         function validate_session($link) {
1943                 if (SINGLE_USER_MODE) return true;
1944
1945                 $check_ip = $_SESSION['ip_address'];
1946
1947                 switch (SESSION_CHECK_ADDRESS) {
1948                 case 0:
1949                         $check_ip = '';
1950                         break;
1951                 case 1:
1952                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
1953                         break;
1954                 case 2:
1955                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
1956                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
1957                         break;
1958                 };
1959
1960                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) {
1961                         $_SESSION["login_error_msg"] =
1962                                 __("Session failed to validate (incorrect IP)");
1963                         return false;
1964                 }
1965
1966                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
1967                         return false;
1968
1969                 if ($_SESSION["uid"]) {
1970
1971                         $result = db_query($link,
1972                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
1973
1974                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
1975
1976                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
1977                                 return false;
1978                         }
1979                 }
1980
1981 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
1982
1983                         //print_r($_SESSION);
1984
1985                         if (time() > $_SESSION["cookie_lifetime"]) {
1986                                 return false;
1987                         }
1988                 } */
1989
1990                 return true;
1991         }
1992
1993         function login_sequence($link, $mobile = false) {
1994                 $_SESSION["prefs_cache"] = array();
1995
1996                 if (!SINGLE_USER_MODE) {
1997
1998                         $login_action = $_POST["login_action"];
1999
2000                         # try to authenticate user if called from login form
2001                         if ($login_action == "do_login") {
2002                                 $login = db_escape_string($_POST["login"]);
2003                                 $password = $_POST["password"];
2004                                 $remember_me = $_POST["remember_me"];
2005
2006                                 if (authenticate_user($link, $login, $password)) {
2007                                         $_POST["password"] = "";
2008
2009                                         $_SESSION["language"] = $_POST["language"];
2010                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
2011                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
2012
2013                                         if ($_POST["profile"]) {
2014
2015                                                 $profile = db_escape_string($_POST["profile"]);
2016
2017                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
2018                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
2019
2020                                                 if (db_num_rows($result) != 0) {
2021                                                         $_SESSION["profile"] = $profile;
2022                                                         $_SESSION["prefs_cache"] = array();
2023                                                 }
2024                                         }
2025
2026                                         if ($_REQUEST['return']) {
2027                                                 header("Location: " . $_REQUEST['return']);
2028                                         } else {
2029                                                 header("Location: " . $_SERVER["REQUEST_URI"]);
2030                                         }
2031
2032                                         exit;
2033
2034                                         return;
2035                                 } else {
2036                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
2037                                 }
2038                         }
2039
2040                         if (!$_SESSION["uid"] || !validate_session($link)) {
2041
2042                                 if (get_remote_user($link) && AUTO_LOGIN) {
2043                                     authenticate_user($link, get_remote_user($link), null);
2044                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
2045                                 } else {
2046                                     render_login_form($link, $mobile);
2047                                     //header("Location: login.php");
2048                                     exit;
2049                                 }
2050                         } else {
2051                                 /* bump login timestamp */
2052                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
2053                                         $_SESSION["uid"]);
2054
2055                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
2056                                         setcookie("ttrss_lang", $_SESSION["language"],
2057                                                 time() + SESSION_COOKIE_LIFETIME);
2058                                 }
2059
2060                                 // try to remove possible duplicates from feed counter cache
2061 //                              ccache_cleanup($link, $_SESSION["uid"]);
2062                         }
2063
2064                 } else {
2065                         return authenticate_user($link, "admin", null);
2066                 }
2067         }
2068
2069         function truncate_string($str, $max_len, $suffix = '&hellip;') {
2070                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
2071                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
2072                 } else {
2073                         return $str;
2074                 }
2075         }
2076
2077         function theme_image($link, $filename) {
2078                 if ($link) {
2079                         $theme_path = get_user_theme_path($link);
2080
2081                         if ($theme_path && is_file($theme_path.$filename)) {
2082                                 return $theme_path.$filename;
2083                         } else {
2084                                 return $filename;
2085                         }
2086                 } else {
2087                         return $filename;
2088                 }
2089         }
2090
2091         function get_user_theme($link) {
2092
2093                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2094                         $theme_name = get_pref($link, "_THEME_ID");
2095                         if (is_dir("themes/$theme_name")) {
2096                                 return $theme_name;
2097                         } else {
2098                                 return '';
2099                         }
2100                 } else {
2101                         return '';
2102                 }
2103
2104         }
2105
2106         function get_user_theme_path($link) {
2107                 $theme_path = '';
2108
2109                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2110                         $theme_name = get_pref($link, "_THEME_ID");
2111
2112                         if ($theme_name && is_dir("themes/$theme_name")) {
2113                                 $theme_path = "themes/$theme_name/";
2114                         } else {
2115                                 $theme_name = '';
2116                         }
2117                 } else {
2118                         $theme_path = '';
2119                 }
2120
2121                 if ($theme_path) {
2122                         if (is_file("$theme_path/theme.ini")) {
2123                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
2124                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
2125                                         return $theme_path;
2126                                 }
2127                         }
2128                 }
2129                 return '';
2130         }
2131
2132         function get_user_theme_options($link) {
2133                 $t = get_user_theme_path($link);
2134
2135                 if ($t) {
2136                         if (is_file("$t/theme.ini")) {
2137                                 $ini = parse_ini_file("$t/theme.ini", true);
2138                                 if ($ini['theme']['version']) {
2139                                         return $ini['theme']['options'];
2140                                 }
2141                         }
2142                 }
2143                 return '';
2144         }
2145
2146         function print_theme_includes($link) {
2147
2148                 $t = get_user_theme_path($link);
2149                 $time = time();
2150
2151                 if ($t) {
2152                         print "<link rel=\"stylesheet\" type=\"text/css\"
2153                                 href=\"$t/theme.css?$time \">";
2154                         if (file_exists("$t/theme.js")) {
2155                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
2156                                         </script>";
2157                         }
2158                 }
2159         }
2160
2161         function get_all_themes() {
2162                 $themes = glob("themes/*");
2163
2164                 asort($themes);
2165
2166                 $rv = array();
2167
2168                 foreach ($themes as $t) {
2169                         if (is_file("$t/theme.ini")) {
2170                                 $ini = parse_ini_file("$t/theme.ini", true);
2171                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
2172                                                         !$ini['theme']['disabled']) {
2173                                         $entry = array();
2174                                         $entry["path"] = $t;
2175                                         $entry["base"] = basename($t);
2176                                         $entry["name"] = $ini['theme']['name'];
2177                                         $entry["version"] = $ini['theme']['version'];
2178                                         $entry["author"] = $ini['theme']['author'];
2179                                         $entry["options"] = $ini['theme']['options'];
2180                                         array_push($rv, $entry);
2181                                 }
2182                         }
2183                 }
2184
2185                 return $rv;
2186         }
2187
2188         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
2189
2190                 try {
2191                         $source_tz = new DateTimeZone($source_tz);
2192                 } catch (Exception $e) {
2193                         $source_tz = new DateTimeZone('UTC');
2194                 }
2195
2196                 try {
2197                         $dest_tz = new DateTimeZone($dest_tz);
2198                 } catch (Exception $e) {
2199                         $dest_tz = new DateTimeZone('UTC');
2200                 }
2201
2202                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
2203                 return $dt->format('U') + $dest_tz->getOffset($dt);
2204         }
2205
2206         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
2207                                         $no_smart_dt = false) {
2208
2209                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2210                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
2211
2212                 global $utc_tz;
2213                 global $tz_offset;
2214
2215                 # We store date in UTC internally
2216                 $dt = new DateTime($timestamp, $utc_tz);
2217
2218                 if ($tz_offset == -1) {
2219
2220                         $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
2221
2222                         try {
2223                                 $user_tz = new DateTimeZone($user_tz_string);
2224                         } catch (Exception $e) {
2225                                 $user_tz = $utc_tz;
2226                         }
2227
2228                         $tz_offset = $user_tz->getOffset($dt);
2229                 }
2230
2231                 $user_timestamp = $dt->format('U') + $tz_offset;
2232
2233                 if (!$no_smart_dt) {
2234                         return smart_date_time($link, $user_timestamp,
2235                                 $tz_offset, $owner_uid);
2236                 } else {
2237                         if ($long)
2238                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2239                         else
2240                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2241
2242                         return date($format, $user_timestamp);
2243                 }
2244         }
2245
2246         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
2247                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2248
2249                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
2250                         return date("G:i", $timestamp);
2251                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
2252                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2253                         return date($format, $timestamp);
2254                 } else {
2255                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2256                         return date($format, $timestamp);
2257                 }
2258         }
2259
2260         function sql_bool_to_bool($s) {
2261                 if ($s == "t" || $s == "1" || $s == "true") {
2262                         return true;
2263                 } else {
2264                         return false;
2265                 }
2266         }
2267
2268         function bool_to_sql_bool($s) {
2269                 if ($s) {
2270                         return "true";
2271                 } else {
2272                         return "false";
2273                 }
2274         }
2275
2276         // Session caching removed due to causing wrong redirects to upgrade
2277         // script when get_schema_version() is called on an obsolete session
2278         // created on a previous schema version.
2279         function get_schema_version($link, $nocache = false) {
2280                 global $schema_version;
2281
2282                 if (!$schema_version) {
2283                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
2284                         $version = db_fetch_result($result, 0, "schema_version");
2285                         $schema_version = $version;
2286                         return $version;
2287                 } else {
2288                         return $schema_version;
2289                 }
2290         }
2291
2292         function sanity_check($link) {
2293
2294                 global $ERRORS;
2295
2296                 $error_code = 0;
2297                 $schema_version = get_schema_version($link, true);
2298
2299                 if ($schema_version != SCHEMA_VERSION) {
2300                         $error_code = 5;
2301                 }
2302
2303                 if (DB_TYPE == "mysql") {
2304                         $result = db_query($link, "SELECT true", false);
2305                         if (db_num_rows($result) != 1) {
2306                                 $error_code = 10;
2307                         }
2308                 }
2309
2310                 if (db_escape_string("testTEST") != "testTEST") {
2311                         $error_code = 12;
2312                 }
2313
2314                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
2315         }
2316
2317         function file_is_locked($filename) {
2318                 if (function_exists('flock')) {
2319                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
2320                         if ($fp) {
2321                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2322                                         flock($fp, LOCK_UN);
2323                                         fclose($fp);
2324                                         return false;
2325                                 }
2326                                 fclose($fp);
2327                                 return true;
2328                         } else {
2329                                 return false;
2330                         }
2331                 }
2332                 return true; // consider the file always locked and skip the test
2333         }
2334
2335         function make_lockfile($filename) {
2336                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2337
2338                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2339                         if (function_exists('posix_getpid')) {
2340                                 fwrite($fp, posix_getpid() . "\n");
2341                         }
2342                         return $fp;
2343                 } else {
2344                         return false;
2345                 }
2346         }
2347
2348         function make_stampfile($filename) {
2349                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2350
2351                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2352                         fwrite($fp, time() . "\n");
2353                         flock($fp, LOCK_UN);
2354                         fclose($fp);
2355                         return true;
2356                 } else {
2357                         return false;
2358                 }
2359         }
2360
2361         function sql_random_function() {
2362                 if (DB_TYPE == "mysql") {
2363                         return "RAND()";
2364                 } else {
2365                         return "RANDOM()";
2366                 }
2367         }
2368
2369         function catchup_feed($link, $feed, $cat_view, $owner_uid = false) {
2370
2371                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2372
2373                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2374
2375                         if (is_numeric($feed)) {
2376                                 if ($cat_view) {
2377
2378                                         if ($feed >= 0) {
2379
2380                                                 if ($feed > 0) {
2381                                                         $cat_qpart = "cat_id = '$feed'";
2382                                                 } else {
2383                                                         $cat_qpart = "cat_id IS NULL";
2384                                                 }
2385
2386                                                 $tmp_result = db_query($link, "SELECT id
2387                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = $owner_uid");
2388
2389                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
2390
2391                                                         $tmp_feed = $tmp_line["id"];
2392
2393                                                         db_query($link, "UPDATE ttrss_user_entries
2394                                                                 SET unread = false,last_read = NOW()
2395                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = $owner_uid");
2396                                                 }
2397                                         } else if ($feed == -2) {
2398
2399                                                 db_query($link, "UPDATE ttrss_user_entries
2400                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
2401                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
2402                                                         AND unread = true AND owner_uid = $owner_uid");
2403                                         }
2404
2405                                 } else if ($feed > 0) {
2406
2407                                         db_query($link, "UPDATE ttrss_user_entries
2408                                                         SET unread = false,last_read = NOW()
2409                                                         WHERE feed_id = '$feed' AND owner_uid = $owner_uid");
2410
2411                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
2412
2413                                         if ($feed == -1) {
2414                                                 db_query($link, "UPDATE ttrss_user_entries
2415                                                         SET unread = false,last_read = NOW()
2416                                                         WHERE marked = true AND owner_uid = $owner_uid");
2417                                         }
2418
2419                                         if ($feed == -2) {
2420                                                 db_query($link, "UPDATE ttrss_user_entries
2421                                                         SET unread = false,last_read = NOW()
2422                                                         WHERE published = true AND owner_uid = $owner_uid");
2423                                         }
2424
2425                                         if ($feed == -3) {
2426
2427                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
2428
2429                                                 if (DB_TYPE == "pgsql") {
2430                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
2431                                                 } else {
2432                                                         $match_part = "updated > DATE_SUB(NOW(),
2433                                                                 INTERVAL $intl HOUR) ";
2434                                                 }
2435
2436                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
2437                                                         ttrss_user_entries WHERE $match_part AND
2438                                                         unread = true AND
2439                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2440                                                         owner_uid = $owner_uid");
2441
2442                                                 $affected_ids = array();
2443
2444                                                 while ($line = db_fetch_assoc($result)) {
2445                                                         array_push($affected_ids, $line["id"]);
2446                                                 }
2447
2448                                                 catchupArticlesById($link, $affected_ids, 0);
2449                                         }
2450
2451                                         if ($feed == -4) {
2452                                                 db_query($link, "UPDATE ttrss_user_entries
2453                                                         SET unread = false,last_read = NOW()
2454                                                         WHERE owner_uid = $owner_uid");
2455                                         }
2456
2457                                 } else if ($feed < -10) { // label
2458
2459                                         $label_id = -$feed - 11;
2460
2461                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
2462                                                 SET unread = false, last_read = NOW()
2463                                                         WHERE label_id = '$label_id' AND unread = true
2464                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
2465
2466                                 }
2467
2468                                 ccache_update($link, $feed, $owner_uid, $cat_view);
2469
2470                         } else { // tag
2471                                 db_query($link, "BEGIN");
2472
2473                                 $tag_name = db_escape_string($feed);
2474
2475                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
2476                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
2477
2478                                 while ($line = db_fetch_assoc($result)) {
2479                                         db_query($link, "UPDATE ttrss_user_entries SET
2480                                                 unread = false, last_read = NOW()
2481                                                 WHERE int_id = " . $line["post_int_id"]);
2482                                 }
2483                                 db_query($link, "COMMIT");
2484                         }
2485         }
2486
2487         function getAllCounters($link, $omode = "flc", $active_feed = false) {
2488
2489                 if (!$omode) $omode = "flc";
2490
2491                 $data = getGlobalCounters($link);
2492
2493                 $data = array_merge($data, getVirtCounters($link));
2494
2495                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
2496                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
2497                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
2498                 if (strchr($omode, "c")) $data = array_merge($data, getCategoryCounters($link));
2499
2500                 return $data;
2501         }
2502
2503         function getCategoryCounters($link) {
2504                 $ret_arr = array();
2505
2506                 /* Labels category */
2507
2508                 $cv = array("id" => -2, "kind" => "cat",
2509                         "counter" => getCategoryUnread($link, -2));
2510
2511                 array_push($ret_arr, $cv);
2512
2513                 $age_qpart = getMaxAgeSubquery();
2514
2515                 $result = db_query($link, "SELECT id AS cat_id, value AS unread
2516                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
2517                         WHERE ttrss_cat_counters_cache.feed_id = id AND
2518                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
2519
2520                 while ($line = db_fetch_assoc($result)) {
2521                         $line["cat_id"] = (int) $line["cat_id"];
2522
2523                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
2524                                 "counter" => $line["unread"]);
2525
2526                         array_push($ret_arr, $cv);
2527                 }
2528
2529                 /* Special case: NULL category doesn't actually exist in the DB */
2530
2531                 $cv = array("id" => 0, "kind" => "cat",
2532                         "counter" => ccache_find($link, 0, $_SESSION["uid"], true));
2533
2534                 array_push($ret_arr, $cv);
2535
2536                 return $ret_arr;
2537         }
2538
2539         function getCategoryUnread($link, $cat, $owner_uid = false) {
2540
2541                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2542
2543                 if ($cat >= 0) {
2544
2545                         if ($cat != 0) {
2546                                 $cat_query = "cat_id = '$cat'";
2547                         } else {
2548                                 $cat_query = "cat_id IS NULL";
2549                         }
2550
2551                         $age_qpart = getMaxAgeSubquery();
2552
2553                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
2554                                         AND owner_uid = " . $owner_uid);
2555
2556                         $cat_feeds = array();
2557                         while ($line = db_fetch_assoc($result)) {
2558                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
2559                         }
2560
2561                         if (count($cat_feeds) == 0) return 0;
2562
2563                         $match_part = implode(" OR ", $cat_feeds);
2564
2565                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
2566                                 FROM ttrss_user_entries,ttrss_entries
2567                                 WHERE   unread = true AND ($match_part) AND id = ref_id
2568                                 AND $age_qpart AND owner_uid = " . $owner_uid);
2569
2570                         $unread = 0;
2571
2572                         # this needs to be rewritten
2573                         while ($line = db_fetch_assoc($result)) {
2574                                 $unread += $line["unread"];
2575                         }
2576
2577                         return $unread;
2578                 } else if ($cat == -1) {
2579                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
2580                 } else if ($cat == -2) {
2581
2582                         $result = db_query($link, "
2583                                 SELECT COUNT(unread) AS unread FROM
2584                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2585                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2586                                         ttrss_labels2.owner_uid = '$owner_uid'
2587                                         AND unread = true AND feed_id = ttrss_feeds.id
2588                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
2589
2590                         $unread = db_fetch_result($result, 0, "unread");
2591
2592                         return $unread;
2593
2594                 }
2595         }
2596
2597         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
2598                 if (DB_TYPE == "pgsql") {
2599                         return "ttrss_entries.date_updated >
2600                                 NOW() - INTERVAL '$days days'";
2601                 } else {
2602                         return "ttrss_entries.date_updated >
2603                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
2604                 }
2605         }
2606
2607         function getFeedUnread($link, $feed, $is_cat = false) {
2608                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
2609         }
2610
2611         function getLabelUnread($link, $label_id, $owner_uid = false) {
2612                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2613
2614                 $result = db_query($link, "
2615                         SELECT COUNT(unread) AS unread FROM
2616                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2617                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2618                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
2619                                 AND unread = true AND feed_id = ttrss_feeds.id
2620                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
2621
2622                 if (db_num_rows($result) != 0) {
2623                         return db_fetch_result($result, 0, "unread");
2624                 } else {
2625                         return 0;
2626                 }
2627         }
2628
2629         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
2630                 $owner_uid = false) {
2631
2632                 $n_feed = (int) $feed;
2633
2634                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2635
2636                 if ($unread_only) {
2637                         $unread_qpart = "unread = true";
2638                 } else {
2639                         $unread_qpart = "true";
2640                 }
2641
2642                 $age_qpart = getMaxAgeSubquery();
2643
2644                 if ($is_cat) {
2645                         return getCategoryUnread($link, $n_feed, $owner_uid);
2646                 } if ($feed != "0" && $n_feed == 0) {
2647
2648                         $feed = db_escape_string($feed);
2649
2650                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
2651                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2652                                         AND ref_id = id AND $age_qpart
2653                                         AND $unread_qpart)) AS count FROM ttrss_tags
2654                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
2655                         return db_fetch_result($result, 0, "count");
2656
2657                 } else if ($n_feed == -1) {
2658                         $match_part = "marked = true";
2659                 } else if ($n_feed == -2) {
2660                         $match_part = "published = true";
2661                 } else if ($n_feed == -3) {
2662                         $match_part = "unread = true AND score >= 0";
2663
2664                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2665
2666                         if (DB_TYPE == "pgsql") {
2667                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2668                         } else {
2669                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2670                         }
2671                 } else if ($n_feed == -4) {
2672                         $match_part = "true";
2673                 } else if ($n_feed >= 0) {
2674
2675                         if ($n_feed != 0) {
2676                                 $match_part = "feed_id = '$n_feed'";
2677                         } else {
2678                                 $match_part = "feed_id IS NULL";
2679                         }
2680
2681                 } else if ($feed < -10) {
2682
2683                         $label_id = -$feed - 11;
2684
2685                         return getLabelUnread($link, $label_id, $owner_uid);
2686
2687                 }
2688
2689                 if ($match_part) {
2690
2691                         if ($n_feed != 0) {
2692                                 $from_qpart = "ttrss_user_entries,ttrss_feeds,ttrss_entries";
2693                                 $feeds_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2694                         } else {
2695                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
2696                                 $feeds_qpart = '';
2697                         }
2698
2699                         $query = "SELECT count(int_id) AS unread
2700                                 FROM $from_qpart WHERE
2701                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
2702                                 $age_qpart AND
2703                                 $feeds_qpart
2704                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
2705
2706                         $result = db_query($link, $query);
2707
2708                 } else {
2709
2710                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
2711                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
2712                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
2713                                 AND $unread_qpart AND $age_qpart AND
2714                                         ttrss_tags.owner_uid = " . $owner_uid);
2715                 }
2716
2717                 $unread = db_fetch_result($result, 0, "unread");
2718
2719                 return $unread;
2720         }
2721
2722         function getGlobalUnread($link, $user_id = false) {
2723
2724                 if (!$user_id) {
2725                         $user_id = $_SESSION["uid"];
2726                 }
2727
2728                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
2729                         WHERE owner_uid = '$user_id' AND feed_id > 0");
2730
2731                 $c_id = db_fetch_result($result, 0, "c_id");
2732
2733                 return $c_id;
2734         }
2735
2736         function getGlobalCounters($link, $global_unread = -1) {
2737                 $ret_arr = array();
2738
2739                 if ($global_unread == -1) {
2740                         $global_unread = getGlobalUnread($link);
2741                 }
2742
2743                 $cv = array("id" => "global-unread",
2744                         "counter" => $global_unread);
2745
2746                 array_push($ret_arr, $cv);
2747
2748                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2749                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2750
2751                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
2752
2753                 $cv = array("id" => "subscribed-feeds",
2754                         "counter" => $subscribed_feeds);
2755
2756                 array_push($ret_arr, $cv);
2757
2758                 return $ret_arr;
2759         }
2760
2761         function getTagCounters($link) {
2762
2763                 $ret_arr = array();
2764
2765                 $age_qpart = getMaxAgeSubquery();
2766
2767                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
2768                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2769                                 AND ref_id = id AND $age_qpart
2770                                 AND unread = true)) AS count FROM ttrss_tags
2771                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
2772                                 ORDER BY count DESC LIMIT 55");
2773
2774                 $tags = array();
2775
2776                 while ($line = db_fetch_assoc($result)) {
2777                         $tags[$line["tag_name"]] += $line["count"];
2778                 }
2779
2780                 foreach (array_keys($tags) as $tag) {
2781                         $unread = $tags[$tag];
2782                         $tag = htmlspecialchars($tag);
2783
2784                         $cv = array("id" => $tag,
2785                                 "kind" => "tag",
2786                                 "counter" => $unread);
2787
2788                         array_push($ret_arr, $cv);
2789                 }
2790
2791                 return $ret_arr;
2792         }
2793
2794         function getVirtCounters($link) {
2795
2796                 $ret_arr = array();
2797
2798                 for ($i = 0; $i >= -4; $i--) {
2799
2800                         $count = getFeedUnread($link, $i);
2801
2802                         $cv = array("id" => $i,
2803                                 "counter" => $count);
2804
2805 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2806 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
2807
2808                         array_push($ret_arr, $cv);
2809                 }
2810
2811                 return $ret_arr;
2812         }
2813
2814         function getLabelCounters($link, $descriptions = false) {
2815
2816                 $ret_arr = array();
2817
2818                 $age_qpart = getMaxAgeSubquery();
2819
2820                 $owner_uid = $_SESSION["uid"];
2821
2822                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
2823                         WHERE owner_uid = '$owner_uid'");
2824
2825                 while ($line = db_fetch_assoc($result)) {
2826
2827                         $id = -$line["id"] - 11;
2828
2829                         $label_name = $line["caption"];
2830                         $count = getFeedUnread($link, $id);
2831
2832                         $cv = array("id" => $id,
2833                                 "counter" => $count);
2834
2835                         if ($descriptions)
2836                                 $cv["description"] = $label_name;
2837
2838 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2839 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2840
2841                         array_push($ret_arr, $cv);
2842                 }
2843
2844                 return $ret_arr;
2845         }
2846
2847         function getFeedCounters($link, $active_feed = false) {
2848
2849                 $ret_arr = array();
2850
2851                 $age_qpart = getMaxAgeSubquery();
2852
2853                 $query = "SELECT ttrss_feeds.id,
2854                                 ttrss_feeds.title,
2855                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
2856                                 last_error, value AS count
2857                         FROM ttrss_feeds, ttrss_counters_cache
2858                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
2859                                 AND ttrss_counters_cache.feed_id = id";
2860
2861                 $result = db_query($link, $query);
2862                 $fctrs_modified = false;
2863
2864                 while ($line = db_fetch_assoc($result)) {
2865
2866                         $id = $line["id"];
2867                         $count = $line["count"];
2868                         $last_error = htmlspecialchars($line["last_error"]);
2869
2870                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
2871
2872                         $has_img = feed_has_icon($id);
2873
2874                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
2875                                 $last_updated = '';
2876
2877                         $cv = array("id" => $id,
2878                                 "updated" => $last_updated,
2879                                 "counter" => $count,
2880                                 "has_img" => (int) $has_img);
2881
2882                         if ($last_error)
2883                                 $cv["error"] = $last_error;
2884
2885 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2886 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2887
2888                         if ($active_feed && $id == $active_feed)
2889                                 $cv["title"] = truncate_string($line["title"], 30);
2890
2891                         array_push($ret_arr, $cv);
2892
2893                 }
2894
2895                 return $ret_arr;
2896         }
2897
2898         function get_pgsql_version($link) {
2899                 $result = db_query($link, "SELECT version() AS version");
2900                 $version = explode(" ", db_fetch_result($result, 0, "version"));
2901                 return $version[1];
2902         }
2903
2904         /**
2905          * Subscribes the user to the given feed
2906          *
2907          * @param resource $link       Database connection
2908          * @param string   $url        Feed URL to subscribe to
2909          * @param integer  $cat_id     Category ID the feed shall be added to
2910          * @param string   $auth_login (optional) Feed username
2911          * @param string   $auth_pass  (optional) Feed password
2912          *
2913          * @return integer Status code:
2914          *                 0 - OK, Feed already exists
2915          *                 1 - OK, Feed added
2916          *                 2 - Invalid URL
2917          *                 3 - URL content is HTML, no feeds available
2918          *                 4 - URL content is HTML which contains multiple feeds.
2919          *                     Here you should call extractfeedurls in rpc-backend
2920          *                     to get all possible feeds.
2921          *                 5 - Couldn't download the URL content.
2922          */
2923         function subscribe_to_feed($link, $url, $cat_id = 0,
2924                         $auth_login = '', $auth_pass = '') {
2925
2926                 $url = fix_url($url);
2927
2928                 if (!$url || !validate_feed_url($url)) return 2;
2929
2930                 $update_method = 0;
2931
2932                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
2933                         WHERE id = ".$_SESSION['uid']);
2934
2935                 $has_oauth = db_fetch_result($result, 0, 'twitter_oauth');
2936
2937                 if (!$has_oauth || strpos($url, '://api.twitter.com') === false) {
2938                         if (!fetch_file_contents($url, false, $auth_login, $auth_pass)) return 5;
2939
2940                         if (url_is_html($url, $auth_login, $auth_pass)) {
2941                                 $feedUrls = get_feeds_from_html($url, $auth_login, $auth_pass);
2942                                 if (count($feedUrls) == 0) {
2943                                         return 3;
2944                                 } else if (count($feedUrls) > 1) {
2945                                         return 4;
2946                                 }
2947                                 //use feed url as new URL
2948                                 $url = key($feedUrls);
2949                         }
2950
2951                         } else {
2952                                 if (!fetch_twitter_rss($link, $url, $_SESSION['uid']))
2953                                         return 5;
2954
2955                                 $update_method = 3;
2956                         }
2957                 if ($cat_id == "0" || !$cat_id) {
2958                         $cat_qpart = "NULL";
2959                 } else {
2960                         $cat_qpart = "'$cat_id'";
2961                 }
2962
2963                 $result = db_query($link,
2964                         "SELECT id FROM ttrss_feeds
2965                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
2966
2967                 if (db_num_rows($result) == 0) {
2968                         $result = db_query($link,
2969                                 "INSERT INTO ttrss_feeds
2970                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
2971                                 VALUES ('".$_SESSION["uid"]."', '$url',
2972                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
2973
2974                         $result = db_query($link,
2975                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
2976                                         AND owner_uid = " . $_SESSION["uid"]);
2977
2978                         $feed_id = db_fetch_result($result, 0, "id");
2979
2980                         if ($feed_id) {
2981                                 update_rss_feed($link, $feed_id, true);
2982                         }
2983
2984                         return 1;
2985                 } else {
2986                         return 0;
2987                 }
2988         }
2989
2990         function print_feed_select($link, $id, $default_id = "",
2991                 $attributes = "", $include_all_feeds = true) {
2992
2993                 print "<select id=\"$id\" name=\"$id\" $attributes>";
2994                 if ($include_all_feeds) {
2995                         print "<option value=\"0\">".__('All feeds')."</option>";
2996                 }
2997
2998                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
2999                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3000
3001                 if (db_num_rows($result) > 0 && $include_all_feeds) {
3002                         print "<option disabled>--------</option>";
3003                 }
3004
3005                 while ($line = db_fetch_assoc($result)) {
3006                         if ($line["id"] == $default_id) {
3007                                 $is_selected = "selected=\"1\"";
3008                         } else {
3009                                 $is_selected = "";
3010                         }
3011
3012                         $title = truncate_string(htmlspecialchars($line["title"]), 40);
3013
3014                         printf("<option $is_selected value='%d'>%s</option>",
3015                                 $line["id"], $title);
3016                 }
3017
3018                 print "</select>";
3019         }
3020
3021         function print_feed_cat_select($link, $id, $default_id = "",
3022                 $attributes = "", $include_all_cats = true) {
3023
3024                 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
3025
3026                 if ($include_all_cats) {
3027                         print "<option value=\"0\">".__('Uncategorized')."</option>";
3028                 }
3029
3030                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
3031                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3032
3033                 if (db_num_rows($result) > 0 && $include_all_cats) {
3034                         print "<option disabled=\"1\">--------</option>";
3035                 }
3036
3037                 while ($line = db_fetch_assoc($result)) {
3038                         if ($line["id"] == $default_id) {
3039                                 $is_selected = "selected=\"1\"";
3040                         } else {
3041                                 $is_selected = "";
3042                         }
3043
3044                         if ($line["title"])
3045                                 printf("<option $is_selected value='%d'>%s</option>",
3046                                         $line["id"], htmlspecialchars($line["title"]));
3047                 }
3048
3049 #               print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
3050
3051                 print "</select>";
3052         }
3053
3054         function checkbox_to_sql_bool($val) {
3055                 return ($val == "on") ? "true" : "false";
3056         }
3057
3058         function getFeedCatTitle($link, $id) {
3059                 if ($id == -1) {
3060                         return __("Special");
3061                 } else if ($id < -10) {
3062                         return __("Labels");
3063                 } else if ($id > 0) {
3064                         $result = db_query($link, "SELECT ttrss_feed_categories.title
3065                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
3066                                         cat_id = ttrss_feed_categories.id");
3067                         if (db_num_rows($result) == 1) {
3068                                 return db_fetch_result($result, 0, "title");
3069                         } else {
3070                                 return __("Uncategorized");
3071                         }
3072                 } else {
3073                         return "getFeedCatTitle($id) failed";
3074                 }
3075
3076         }
3077
3078         function getFeedIcon($id) {
3079                 switch ($id) {
3080                 case 0:
3081                         return "images/archive.png";
3082                         break;
3083                 case -1:
3084                         return "images/mark_set.png";
3085                         break;
3086                 case -2:
3087                         return "images/pub_set.png";
3088                         break;
3089                 case -3:
3090                         return "images/fresh.png";
3091                         break;
3092                 case -4:
3093                         return "images/tag.png";
3094                         break;
3095                 default:
3096                         if ($id < -10) {
3097                                 return "images/label.png";
3098                         } else {
3099                                 if (file_exists(ICONS_DIR . "/$id.ico"))
3100                                         return ICONS_URL . "/$id.ico";
3101                         }
3102                         break;
3103                 }
3104         }
3105
3106         function getFeedTitle($link, $id) {
3107                 if ($id == -1) {
3108                         return __("Starred articles");
3109                 } else if ($id == -2) {
3110                         return __("Published articles");
3111                 } else if ($id == -3) {
3112                         return __("Fresh articles");
3113                 } else if ($id == -4) {
3114                         return __("All articles");
3115                 } else if ($id === 0 || $id === "0") {
3116                         return __("Archived articles");
3117                 } else if ($id < -10) {
3118                         $label_id = -$id - 11;
3119                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
3120                         if (db_num_rows($result) == 1) {
3121                                 return db_fetch_result($result, 0, "caption");
3122                         } else {
3123                                 return "Unknown label ($label_id)";
3124                         }
3125
3126                 } else if (is_numeric($id) && $id > 0) {
3127                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
3128                         if (db_num_rows($result) == 1) {
3129                                 return db_fetch_result($result, 0, "title");
3130                         } else {
3131                                 return "Unknown feed ($id)";
3132                         }
3133                 } else {
3134                         return $id;
3135                 }
3136         }
3137
3138         function make_init_params($link) {
3139                 $params = array();
3140
3141                 $params["theme"] = get_user_theme($link);
3142                 $params["theme_options"] = get_user_theme_options($link);
3143
3144                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
3145                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
3146                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
3147                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
3148
3149                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
3150                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
3151                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
3152                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
3153
3154                                  $params[strtolower($param)] = (int) get_pref($link, $param);
3155                  }
3156
3157                 $params["icons_url"] = ICONS_URL;
3158                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
3159                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
3160                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
3161                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
3162                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
3163
3164                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3165                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3166
3167                 $max_feed_id = db_fetch_result($result, 0, "mid");
3168                 $num_feeds = db_fetch_result($result, 0, "nf");
3169
3170                 $params["max_feed_id"] = (int) $max_feed_id;
3171                 $params["num_feeds"] = (int) $num_feeds;
3172
3173                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
3174
3175                 return $params;
3176         }
3177
3178         function make_runtime_info($link) {
3179                 $data = array();
3180
3181                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3182                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3183
3184                 $max_feed_id = db_fetch_result($result, 0, "mid");
3185                 $num_feeds = db_fetch_result($result, 0, "nf");
3186
3187                 $data["max_feed_id"] = (int) $max_feed_id;
3188                 $data["num_feeds"] = (int) $num_feeds;
3189
3190                 $data['last_article_id'] = getLastArticleId($link);
3191                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
3192
3193                 if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
3194
3195                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
3196
3197                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
3198
3199                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
3200
3201                                 if ($stamp) {
3202                                         $stamp_delta = time() - $stamp;
3203
3204                                         if ($stamp_delta > 1800) {
3205                                                 $stamp_check = 0;
3206                                         } else {
3207                                                 $stamp_check = 1;
3208                                                 $_SESSION["daemon_stamp_check"] = time();
3209                                         }
3210
3211                                         $data['daemon_stamp_ok'] = $stamp_check;
3212
3213                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
3214
3215                                         $data['daemon_stamp'] = $stamp_fmt;
3216                                 }
3217                         }
3218                 }
3219
3220                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
3221                                 $new_version_details = @check_for_update($link);
3222
3223                                 $data['new_version_available'] = (int) ($new_version_details != false);
3224
3225                                 $_SESSION["last_version_check"] = time();
3226                 }
3227
3228                 return $data;
3229         }
3230
3231         function search_to_sql($link, $search, $match_on) {
3232
3233                 $search_query_part = "";
3234
3235                 $keywords = explode(" ", $search);
3236                 $query_keywords = array();
3237
3238                 foreach ($keywords as $k) {
3239                         if (strpos($k, "-") === 0) {
3240                                 $k = substr($k, 1);
3241                                 $not = "NOT";
3242                         } else {
3243                                 $not = "";
3244                         }
3245
3246                         $commandpair = explode(":", mb_strtolower($k), 2);
3247
3248                         if ($commandpair[0] == "note" && $commandpair[1]) {
3249
3250                                 if ($commandpair[1] == "true")
3251                                         array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
3252                                 else
3253                                         array_push($query_keywords, "($not (note IS NULL OR note = ''))");
3254
3255                         } else if ($commandpair[0] == "star" && $commandpair[1]) {
3256
3257                                 if ($commandpair[1] == "true")
3258                                         array_push($query_keywords, "($not (marked = true))");
3259                                 else
3260                                         array_push($query_keywords, "($not (marked = false))");
3261
3262                         } else if ($commandpair[0] == "pub" && $commandpair[1]) {
3263
3264                                 if ($commandpair[1] == "true")
3265                                         array_push($query_keywords, "($not (published = true))");
3266                                 else
3267                                         array_push($query_keywords, "($not (published = false))");
3268
3269                         } else if (strpos($k, "@") === 0) {
3270
3271                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
3272                                 $orig_ts = strtotime(substr($k, 1));
3273                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
3274
3275                                 //$k = date("Y-m-d", strtotime(substr($k, 1)));
3276
3277                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
3278                         } else if ($match_on == "both") {
3279                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
3280                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3281                         } else if ($match_on == "title") {
3282                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
3283                         } else if ($match_on == "content") {
3284                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3285                         }
3286                 }
3287
3288                 $search_query_part = implode("AND", $query_keywords);
3289
3290                 return $search_query_part;
3291         }
3292
3293
3294         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0) {
3295
3296                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3297
3298                 $ext_tables_part = "";
3299
3300                         if ($search) {
3301
3302                                 if (SPHINX_ENABLED) {
3303                                         $ids = join(",", @sphinx_search($search, 0, 500));
3304
3305                                         if ($ids)
3306                                                 $search_query_part = "ref_id IN ($ids) AND ";
3307                                         else
3308                                                 $search_query_part = "ref_id = -1 AND ";
3309
3310                                 } else {
3311                                         $search_query_part = search_to_sql($link, $search, $match_on);
3312                                         $search_query_part .= " AND ";
3313                                 }
3314
3315                         } else {
3316                                 $search_query_part = "";
3317                         }
3318
3319                         if ($filter) {
3320                                 $filter_query_part = filter_to_sql($filter);
3321                         } else {
3322                                 $filter_query_part = "";
3323                         }
3324
3325                         if ($since_id) {
3326                                 $since_id_part = "ttrss_entries.id > $since_id AND ";
3327                         } else {
3328                                 $since_id_part = "";
3329                         }
3330
3331                         $view_query_part = "";
3332
3333                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
3334                                 if ($search) {
3335                                         $view_query_part = " ";
3336                                 } else if ($feed != -1) {
3337                                         $unread = getFeedUnread($link, $feed, $cat_view);
3338                                         if ($unread > 0) {
3339                                                 $view_query_part = " unread = true AND ";
3340                                         }
3341                                 }
3342                         }
3343
3344                         if ($view_mode == "marked") {
3345                                 $view_query_part = " marked = true AND ";
3346                         }
3347
3348                         if ($view_mode == "published") {
3349                                 $view_query_part = " published = true AND ";
3350                         }
3351
3352                         if ($view_mode == "unread") {
3353                                 $view_query_part = " unread = true AND ";
3354                         }
3355
3356                         if ($view_mode == "updated") {
3357                                 $view_query_part = " (last_read is null and unread = false) AND ";
3358                         }
3359
3360                         if ($limit > 0) {
3361                                 $limit_query_part = "LIMIT " . $limit;
3362                         }
3363
3364                         $vfeed_query_part = "";
3365
3366                         // override query strategy and enable feed display when searching globally
3367                         if ($search && $search_mode == "all_feeds") {
3368                                 $query_strategy_part = "ttrss_entries.id > 0";
3369                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3370                         /* tags */
3371                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
3372                                 $query_strategy_part = "ttrss_entries.id > 0";
3373                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
3374                                         id = feed_id) as feed_title,";
3375                         } else if ($feed > 0 && $search && $search_mode == "this_cat") {
3376
3377                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3378
3379                                 $tmp_result = false;
3380
3381                                 if ($cat_view) {
3382                                         $tmp_result = db_query($link, "SELECT id
3383                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
3384                                 } else {
3385                                         $tmp_result = db_query($link, "SELECT id
3386                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
3387                                                         WHERE id = '$feed') AND id != '$feed'");
3388                                 }
3389
3390                                 $cat_siblings = array();
3391
3392                                 if (db_num_rows($tmp_result) > 0) {
3393                                         while ($p = db_fetch_assoc($tmp_result)) {
3394                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
3395                                         }
3396
3397                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
3398                                                 $feed, implode(" OR ", $cat_siblings));
3399
3400                                 } else {
3401                                         $query_strategy_part = "ttrss_entries.id > 0";
3402                                 }
3403
3404                         } else if ($feed > 0) {
3405
3406                                 if ($cat_view) {
3407
3408                                         if ($feed > 0) {
3409                                                 $query_strategy_part = "cat_id = '$feed'";
3410                                         } else {
3411                                                 $query_strategy_part = "cat_id IS NULL";
3412                                         }
3413
3414                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3415
3416                                 } else {
3417                                         $query_strategy_part = "feed_id = '$feed'";
3418                                 }
3419                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
3420                                 $query_strategy_part = "feed_id IS NULL";
3421                         } else if ($feed == 0 && $cat_view) { // uncategorized
3422                                 $query_strategy_part = "cat_id IS NULL";
3423                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3424                         } else if ($feed == -1) { // starred virtual feed
3425                                 $query_strategy_part = "marked = true";
3426                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3427                         } else if ($feed == -2) { // published virtual feed OR labels category
3428
3429                                 if (!$cat_view) {
3430                                         $query_strategy_part = "published = true";
3431                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3432                                 } else {
3433                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3434
3435                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3436
3437                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
3438                                                 ttrss_user_labels2.article_id = ref_id";
3439
3440                                 }
3441
3442                         } else if ($feed == -3) { // fresh virtual feed
3443                                 $query_strategy_part = "unread = true AND score >= 0";
3444
3445                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
3446
3447                                 if (DB_TYPE == "pgsql") {
3448                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
3449                                 } else {
3450                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
3451                                 }
3452
3453                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3454                         } else if ($feed == -4) { // all articles virtual feed
3455                                 $query_strategy_part = "true";
3456                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3457                         } else if ($feed <= -10) { // labels
3458                                 $label_id = -$feed - 11;
3459
3460                                 $query_strategy_part = "label_id = '$label_id' AND
3461                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
3462                                         ttrss_user_labels2.article_id = ref_id";
3463
3464                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3465                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3466
3467                         } else {
3468                                 $query_strategy_part = "id > 0"; // dumb
3469                         }
3470
3471                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3472                                 $date_sort_field = "updated";
3473                         } else {
3474                                 $date_sort_field = "date_entered";
3475                         }
3476
3477                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
3478                                 $order_by = "$date_sort_field";
3479                         } else {
3480                                 $order_by = "$date_sort_field DESC";
3481                         }
3482
3483                         if ($view_mode != "noscores") {
3484                                 $order_by = "score DESC, $order_by";
3485                         }
3486
3487                         if ($override_order) {
3488                                 $order_by = $override_order;
3489                         }
3490
3491                         $feed_title = "";
3492
3493                         if ($search) {
3494                                 $feed_title = "Search results";
3495                         } else {
3496                                 if ($cat_view) {
3497                                         $feed_title = getCategoryTitle($link, $feed);
3498                                 } else {
3499                                         if (is_numeric($feed) && $feed > 0) {
3500                                                 $result = db_query($link, "SELECT title,site_url,last_error
3501                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
3502
3503                                                 $feed_title = db_fetch_result($result, 0, "title");
3504                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
3505                                                 $last_error = db_fetch_result($result, 0, "last_error");
3506                                         } else {
3507                                                 $feed_title = getFeedTitle($link, $feed);
3508                                         }
3509                                 }
3510                         }
3511
3512                         $content_query_part = "content as content_preview,";
3513
3514                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
3515
3516                                 if ($feed >= 0) {
3517                                         $feed_kind = "Feeds";
3518                                 } else {
3519                                         $feed_kind = "Labels";
3520                                 }
3521
3522                                 if ($limit_query_part) {
3523                                         $offset_query_part = "OFFSET $offset";
3524                                 }
3525
3526                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
3527                                         if (!$override_order) {
3528                                                 $order_by = "ttrss_feeds.title, $order_by";
3529                                         }
3530                                 }
3531
3532                                 if ($feed != "0") {
3533                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
3534                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
3535
3536                                 } else {
3537                                         $from_qpart = "ttrss_entries,ttrss_user_entries$ext_tables_part
3538                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
3539                                 }
3540
3541                                 $query = "SELECT DISTINCT
3542                                                 date_entered,
3543                                                 guid,
3544                                                 ttrss_entries.id,ttrss_entries.title,
3545                                                 updated,
3546                                                 label_cache,
3547                                                 tag_cache,
3548                                                 always_display_enclosures,
3549                                                 site_url,
3550                                                 note,
3551                                                 num_comments,
3552                                                 comments,
3553                                                 int_id,
3554                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
3555                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3556                                                 $vfeed_query_part
3557                                                 $content_query_part
3558                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3559                                                 author,score
3560                                         FROM
3561                                                 $from_qpart
3562                                         WHERE
3563                                         $feed_check_qpart
3564                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
3565                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
3566                                         $search_query_part
3567                                         $filter_query_part
3568                                         $view_query_part
3569                                         $since_id_part
3570                                         $query_strategy_part ORDER BY $order_by
3571                                         $limit_query_part $offset_query_part";
3572
3573                                 if ($_REQUEST["debug"]) print $query;
3574
3575                                 $result = db_query($link, $query);
3576
3577                         } else {
3578                                 // browsing by tag
3579
3580                                 $select_qpart = "SELECT DISTINCT " .
3581                                                                 "date_entered," .
3582                                                                 "guid," .
3583                                                                 "note," .
3584                                                                 "ttrss_entries.id as id," .
3585                                                                 "title," .
3586                                                                 "updated," .
3587                                                                 "unread," .
3588                                                                 "feed_id," .
3589                                                                 "orig_feed_id," .
3590                                                                 "site_url," .
3591                                                                 "always_display_enclosures, ".
3592                                                                 "marked," .
3593                                                                 "num_comments, " .
3594                                                                 "comments, " .
3595                                                                 "tag_cache," .
3596                                                                 "label_cache," .
3597                                                                 "link," .
3598                                                                 "last_read," .
3599                                                                 SUBSTRING_FOR_DATE . "(last_read,1,19) as last_read_noms," .
3600                                                                 $since_id_part .
3601                                                                 $vfeed_query_part .
3602                                                                 $content_query_part .
3603                                                                 SUBSTRING_FOR_DATE . "(updated,1,19) as updated_noms," .
3604                                                                 "score ";
3605
3606                                 $feed_kind = "Tags";
3607                                 $all_tags = explode(",", $feed);
3608                                 if ($search_mode == 'any') {
3609                                         $tag_sql = "tag_name in (" . implode(", ", array_map("db_quote", $all_tags)) . ")";
3610                                         $from_qpart = " FROM ttrss_entries,ttrss_user_entries,ttrss_tags ";
3611                                         $where_qpart = " WHERE " .
3612                                                                    "ref_id = ttrss_entries.id AND " .
3613                                                                    "ttrss_user_entries.owner_uid = $owner_uid AND " .
3614                                                                    "post_int_id = int_id AND $tag_sql AND " .
3615                                                                    $view_query_part .
3616                                                                    $search_query_part .
3617                                                                    $query_strategy_part . " ORDER BY $order_by " .
3618                                                                    $limit_query_part;
3619
3620                                 } else {
3621                                         $i = 1;
3622                                         $sub_selects = array();
3623                                         $sub_ands = array();
3624                                         foreach ($all_tags as $term) {
3625                                                 array_push($sub_selects, "(SELECT post_int_id from ttrss_tags WHERE tag_name = " . db_quote($term) . " AND owner_uid = $owner_uid) as A$i");
3626                                                 $i++;
3627                                         }
3628                                         if ($i > 2) {
3629                                                 $x = 1;
3630                                                 $y = 2;
3631                                                 do {
3632                                                         array_push($sub_ands, "A$x.post_int_id = A$y.post_int_id");
3633                                                         $x++;
3634                                                         $y++;
3635                                                 } while ($y < $i);
3636                                         }
3637                                         array_push($sub_ands, "A1.post_int_id = ttrss_user_entries.int_id and ttrss_user_entries.owner_uid = $owner_uid");
3638                                         array_push($sub_ands, "ttrss_user_entries.ref_id = ttrss_entries.id");
3639                                         $from_qpart = " FROM " . implode(", ", $sub_selects) . ", ttrss_user_entries, ttrss_entries";
3640                                         $where_qpart = " WHERE " . implode(" AND ", $sub_ands);
3641                                 }
3642                                 //                              error_log("TAG SQL: " . $tag_sql);
3643                                 // $tag_sql = "tag_name = '$feed'";   DEFAULT way
3644
3645                                 //                              error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
3646                                 $result = db_query($link, $select_qpart . $from_qpart . $where_qpart);
3647                         }
3648
3649                         return array($result, $feed_title, $feed_site_url, $last_error);
3650
3651         }
3652
3653         function generate_syndicated_feed($link, $owner_uid, $feed, $is_cat,
3654                 $limit, $search, $search_mode, $match_on, $view_mode = false) {
3655
3656                 require_once "lib/MiniTemplator.class.php";
3657
3658                 $note_style =   "background-color : #fff7d5;
3659                         border-width : 1px; ".
3660                         "padding : 5px; border-style : dashed; border-color : #e7d796;".
3661                         "margin-bottom : 1em; color : #9a8c59;";
3662
3663                 if (!$limit) $limit = 30;
3664
3665                 if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3666                         $date_sort_field = "updated";
3667                 } else {
3668                         $date_sort_field = "date_entered";
3669                 }
3670
3671                 $qfh_ret = queryFeedHeadlines($link, $feed,
3672                         $limit, $view_mode, $is_cat, $search, $search_mode,
3673                         $match_on, "$date_sort_field DESC", 0, $owner_uid);
3674
3675                 $result = $qfh_ret[0];
3676                 $feed_title = htmlspecialchars($qfh_ret[1]);
3677                 $feed_site_url = $qfh_ret[2];
3678                 $last_error = $qfh_ret[3];
3679
3680                 $feed_self_url = get_self_url_prefix() .
3681                         "/public.php?op=rss&id=-2&key=" .
3682                         get_feed_access_key($link, -2, false);
3683
3684                 if (!$feed_site_url) $feed_site_url = get_self_url_prefix();
3685
3686                 $tpl = new MiniTemplator;
3687
3688                 $tpl->readTemplateFromFile("templates/generated_feed.txt");
3689
3690                 $tpl->setVariable('FEED_TITLE', $feed_title);
3691                 $tpl->setVariable('VERSION', VERSION);
3692                 $tpl->setVariable('FEED_URL', htmlspecialchars($feed_self_url));
3693
3694                 if (PUBSUBHUBBUB_HUB && $feed == -2) {
3695                         $tpl->setVariable('HUB_URL', htmlspecialchars(PUBSUBHUBBUB_HUB));
3696                         $tpl->addBlock('feed_hub');
3697                 }
3698
3699                 $tpl->setVariable('SELF_URL', htmlspecialchars(get_self_url_prefix()));
3700
3701                 while ($line = db_fetch_assoc($result)) {
3702                         $tpl->setVariable('ARTICLE_ID', htmlspecialchars($line['link']));
3703                         $tpl->setVariable('ARTICLE_LINK', htmlspecialchars($line['link']));
3704                         $tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($line['title']));
3705                         $tpl->setVariable('ARTICLE_EXCERPT',
3706                                 truncate_string(strip_tags($line["content_preview"]), 100, '...'));
3707
3708                         $content = sanitize_rss($link, $line["content_preview"], false, $owner_uid);
3709
3710                         if ($line['note']) {
3711                                 $content = "<div style=\"$note_style\">Article note: " . $line['note'] . "</div>" .
3712                                         $content;
3713                         }
3714
3715                         $tpl->setVariable('ARTICLE_CONTENT', $content);
3716
3717                         $tpl->setVariable('ARTICLE_UPDATED', date('c', strtotime($line["updated"])));
3718                         $tpl->setVariable('ARTICLE_AUTHOR', htmlspecialchars($line['author']));
3719
3720                         $tags = get_article_tags($link, $line["id"], $owner_uid);
3721
3722                         foreach ($tags as $tag) {
3723                                 $tpl->setVariable('ARTICLE_CATEGORY', htmlspecialchars($tag));
3724                                 $tpl->addBlock('category');
3725                         }
3726
3727                         $enclosures = get_article_enclosures($link, $line["id"]);
3728
3729                         foreach ($enclosures as $e) {
3730                                 $type = htmlspecialchars($e['content_type']);
3731                                 $url = htmlspecialchars($e['content_url']);
3732                                 $length = $e['duration'];
3733
3734                                 $tpl->setVariable('ARTICLE_ENCLOSURE_URL', $url);
3735                                 $tpl->setVariable('ARTICLE_ENCLOSURE_TYPE', $type);
3736                                 $tpl->setVariable('ARTICLE_ENCLOSURE_LENGTH', $length);
3737
3738                                 $tpl->addBlock('enclosure');
3739                         }
3740
3741                         $tpl->addBlock('entry');
3742                 }
3743
3744                 $tmp = "";
3745
3746                 $tpl->addBlock('feed');
3747                 $tpl->generateOutputToString($tmp);
3748
3749                 print $tmp;
3750         }
3751
3752         function getCategoryTitle($link, $cat_id) {
3753
3754                 if ($cat_id == -1) {
3755                         return __("Special");
3756                 } else if ($cat_id == -2) {
3757                         return __("Labels");
3758                 } else {
3759
3760                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
3761                                 id = '$cat_id'");
3762
3763                         if (db_num_rows($result) == 1) {
3764                                 return db_fetch_result($result, 0, "title");
3765                         } else {
3766                                 return "Uncategorized";
3767                         }
3768                 }
3769         }
3770
3771         function sanitize_rss($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
3772                 global $purifier;
3773
3774                 if (!$owner) $owner = $_SESSION["uid"];
3775
3776                 $res = trim($str); if (!$res) return '';
3777
3778 //              if (get_pref($link, "STRIP_UNSAFE_TAGS", $owner) || $force_strip_tags) {
3779                 $res = $purifier->purify($res);
3780 //              }
3781
3782                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
3783                         $res = preg_replace('/<img[^>]+>/is', '', $res);
3784                 }
3785
3786                 if (strpos($res, "href=") === false)
3787                         $res = rewrite_urls($res);
3788
3789                 $charset_hack = '<head>
3790                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
3791                 </head>';
3792
3793                 $res = trim($res); if (!$res) return '';
3794
3795                 libxml_use_internal_errors(true);
3796
3797                 $doc = new DOMDocument();
3798                 $doc->loadHTML($charset_hack . $res);
3799                 $xpath = new DOMXPath($doc);
3800
3801                 $entries = $xpath->query('(//a[@href]|//img[@src])');
3802                 $br_inserted = 0;
3803
3804                 foreach ($entries as $entry) {
3805
3806                         if ($site_url) {
3807
3808                                 if ($entry->hasAttribute('href'))
3809                                         $entry->setAttribute('href',
3810                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
3811
3812                                 if ($entry->hasAttribute('src'))
3813                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
3814                                                 $entry->setAttribute('src',
3815                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
3816                         }
3817
3818                         if (strtolower($entry->nodeName) == "a") {
3819                                 $entry->setAttribute("target", "_blank");
3820                         }
3821
3822                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
3823                                 $br = $doc->createElement("br");
3824
3825                                 if ($entry->parentNode->nextSibling) {
3826                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
3827                                         $br_inserted = 1;
3828                                 }
3829
3830                         }
3831                 }
3832
3833                 $node = $doc->getElementsByTagName('body')->item(0);
3834
3835                 return $doc->saveXML($node);
3836         }
3837
3838         /**
3839          * Send by mail a digest of last articles.
3840          *
3841          * @param mixed $link The database connection.
3842          * @param integer $limit The maximum number of articles by digest.
3843          * @return boolean Return false if digests are not enabled.
3844          */
3845         function send_headlines_digests($link, $limit = 100) {
3846
3847                 if (!DIGEST_ENABLE) return false;
3848
3849                 $user_limit = DIGEST_EMAIL_LIMIT;
3850                 $days = 1;
3851
3852                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
3853
3854                 if (DB_TYPE == "pgsql") {
3855                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
3856                 } else if (DB_TYPE == "mysql") {
3857                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
3858                 }
3859
3860                 $result = db_query($link, "SELECT id,email FROM ttrss_users
3861                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
3862
3863                 while ($line = db_fetch_assoc($result)) {
3864
3865                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
3866                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
3867
3868                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
3869
3870                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
3871                                 $digest = $tuple[0];
3872                                 $headlines_count = $tuple[1];
3873                                 $affected_ids = $tuple[2];
3874                                 $digest_text = $tuple[3];
3875
3876                                 if ($headlines_count > 0) {
3877
3878                                         $mail = new PHPMailer();
3879
3880                                         $mail->PluginDir = "lib/phpmailer/";
3881                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
3882
3883                                         $mail->CharSet = "UTF-8";
3884
3885                                         $mail->From = DIGEST_FROM_ADDRESS;
3886                                         $mail->FromName = DIGEST_FROM_NAME;
3887                                         $mail->AddAddress($line["email"], $line["login"]);
3888
3889                                         if (DIGEST_SMTP_HOST) {
3890                                                 $mail->Host = DIGEST_SMTP_HOST;
3891                                                 $mail->Mailer = "smtp";
3892                                                 $mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
3893                                                 $mail->Username = DIGEST_SMTP_LOGIN;
3894                                                 $mail->Password = DIGEST_SMTP_PASSWORD;
3895                                         }
3896
3897                                         $mail->IsHTML(true);
3898                                         $mail->Subject = DIGEST_SUBJECT;
3899                                         $mail->Body = $digest;
3900                                         $mail->AltBody = $digest_text;
3901
3902                                         $rc = $mail->Send();
3903
3904                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
3905
3906                                         print "RC=$rc\n";
3907
3908                                         if ($rc && $do_catchup) {
3909                                                 print "Marking affected articles as read...\n";
3910                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
3911                                         }
3912                                 } else {
3913                                         print "No headlines\n";
3914                                 }
3915
3916                                 db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
3917                                         WHERE id = " . $line["id"]);
3918                         }
3919                 }
3920
3921                 print "All done.\n";
3922
3923         }
3924
3925         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
3926
3927                 require_once "lib/MiniTemplator.class.php";
3928
3929                 $tpl = new MiniTemplator;
3930                 $tpl_t = new MiniTemplator;
3931
3932                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
3933                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
3934
3935                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
3936                 $tpl->setVariable('CUR_TIME', date('G:i'));
3937
3938                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
3939                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
3940
3941                 $affected_ids = array();
3942
3943                 if (DB_TYPE == "pgsql") {
3944                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
3945                 } else if (DB_TYPE == "mysql") {
3946                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
3947                 }
3948
3949                 $result = db_query($link, "SELECT ttrss_entries.title,
3950                                 ttrss_feeds.title AS feed_title,
3951                                 date_updated,
3952                                 ttrss_user_entries.ref_id,
3953                                 link,
3954                                 SUBSTRING(content, 1, 120) AS excerpt,
3955                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
3956                         FROM
3957                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
3958                         WHERE
3959                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
3960                                 AND include_in_digest = true
3961                                 AND $interval_query
3962                                 AND ttrss_user_entries.owner_uid = $user_id
3963                                 AND unread = true
3964                         ORDER BY ttrss_feeds.title, date_updated DESC
3965                         LIMIT $limit");
3966
3967                 $cur_feed_title = "";
3968
3969                 $headlines_count = db_num_rows($result);
3970
3971                 $headlines = array();
3972
3973                 while ($line = db_fetch_assoc($result)) {
3974                         array_push($headlines, $line);
3975                 }
3976
3977                 for ($i = 0; $i < sizeof($headlines); $i++) {
3978
3979                         $line = $headlines[$i];
3980
3981                         array_push($affected_ids, $line["ref_id"]);
3982
3983                         $updated = make_local_datetime($link, $line['last_updated'], false,
3984                                 $user_id);
3985
3986                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
3987                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
3988                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
3989                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
3990                         $tpl->setVariable('ARTICLE_EXCERPT',
3991                                 truncate_string(strip_tags($line["excerpt"]), 100));
3992
3993                         $tpl->addBlock('article');
3994
3995                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
3996                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
3997                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
3998                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
3999 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
4000 //                              truncate_string(strip_tags($line["excerpt"]), 100));
4001
4002                         $tpl_t->addBlock('article');
4003
4004                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
4005                                 $tpl->addBlock('feed');
4006                                 $tpl_t->addBlock('feed');
4007                         }
4008
4009                 }
4010
4011                 $tpl->addBlock('digest');
4012                 $tpl->generateOutputToString($tmp);
4013
4014                 $tpl_t->addBlock('digest');
4015                 $tpl_t->generateOutputToString($tmp_t);
4016
4017                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
4018         }
4019
4020         function check_for_update($link) {
4021                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
4022                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
4023
4024                         $version_data = @fetch_file_contents($version_url);
4025
4026                         if ($version_data) {
4027                                 $version_data = json_decode($version_data, true);
4028                                 if ($version_data && $version_data['version']) {
4029
4030                                         if (version_compare(VERSION, $version_data['version']) == -1) {
4031                                                 return $version_data;
4032                                         }
4033                                 }
4034                         }
4035                 }
4036                 return false;
4037         }
4038
4039         function markArticlesById($link, $ids, $cmode) {
4040
4041                 $tmp_ids = array();
4042
4043                 foreach ($ids as $id) {
4044                         array_push($tmp_ids, "ref_id = '$id'");
4045                 }
4046
4047                 $ids_qpart = join(" OR ", $tmp_ids);
4048
4049                 if ($cmode == 0) {
4050                         db_query($link, "UPDATE ttrss_user_entries SET
4051                         marked = false,last_read = NOW()
4052                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4053                 } else if ($cmode == 1) {
4054                         db_query($link, "UPDATE ttrss_user_entries SET
4055                         marked = true
4056                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4057                 } else {
4058                         db_query($link, "UPDATE ttrss_user_entries SET
4059                         marked = NOT marked,last_read = NOW()
4060                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4061                 }
4062         }
4063
4064         function publishArticlesById($link, $ids, $cmode) {
4065
4066                 $tmp_ids = array();
4067
4068                 foreach ($ids as $id) {
4069                         array_push($tmp_ids, "ref_id = '$id'");
4070                 }
4071
4072                 $ids_qpart = join(" OR ", $tmp_ids);
4073
4074                 if ($cmode == 0) {
4075                         db_query($link, "UPDATE ttrss_user_entries SET
4076                         published = false,last_read = NOW()
4077                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4078                 } else if ($cmode == 1) {
4079                         db_query($link, "UPDATE ttrss_user_entries SET
4080                         published = true
4081                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4082                 } else {
4083                         db_query($link, "UPDATE ttrss_user_entries SET
4084                         published = NOT published,last_read = NOW()
4085                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4086                 }
4087
4088                 if (PUBSUBHUBBUB_HUB) {
4089                         $rss_link = get_self_url_prefix() .
4090                                 "/public.php?op=rss&id=-2&key=" .
4091                                 get_feed_access_key($link, -2, false);
4092
4093                         $p = new Publisher(PUBSUBHUBBUB_HUB);
4094
4095                         $pubsub_result = $p->publish_update($rss_link);
4096                 }
4097         }
4098
4099         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
4100
4101                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4102                 if (count($ids) == 0) return;
4103
4104                 $tmp_ids = array();
4105
4106                 foreach ($ids as $id) {
4107                         array_push($tmp_ids, "ref_id = '$id'");
4108                 }
4109
4110                 $ids_qpart = join(" OR ", $tmp_ids);
4111
4112                 if ($cmode == 0) {
4113                         db_query($link, "UPDATE ttrss_user_entries SET
4114                         unread = false,last_read = NOW()
4115                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4116                 } else if ($cmode == 1) {
4117                         db_query($link, "UPDATE ttrss_user_entries SET
4118                         unread = true
4119                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4120                 } else {
4121                         db_query($link, "UPDATE ttrss_user_entries SET
4122                         unread = NOT unread,last_read = NOW()
4123                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4124                 }
4125
4126                 /* update ccache */
4127
4128                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
4129                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4130
4131                 while ($line = db_fetch_assoc($result)) {
4132                         ccache_update($link, $line["feed_id"], $owner_uid);
4133                 }
4134         }
4135
4136         function catchupArticleById($link, $id, $cmode) {
4137
4138                 if ($cmode == 0) {
4139                         db_query($link, "UPDATE ttrss_user_entries SET
4140                         unread = false,last_read = NOW()
4141                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4142                 } else if ($cmode == 1) {
4143                         db_query($link, "UPDATE ttrss_user_entries SET
4144                         unread = true
4145                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4146                 } else {
4147                         db_query($link, "UPDATE ttrss_user_entries SET
4148                         unread = NOT unread,last_read = NOW()
4149                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4150                 }
4151
4152                 $feed_id = getArticleFeed($link, $id);
4153                 ccache_update($link, $feed_id, $_SESSION["uid"]);
4154         }
4155
4156         function make_guid_from_title($title) {
4157                 return preg_replace("/[ \"\',.:;]/", "-",
4158                         mb_strtolower(strip_tags($title), 'utf-8'));
4159         }
4160
4161         function format_headline_subtoolbar($link, $feed_site_url, $feed_title,
4162                         $feed_id, $is_cat, $search, $match_on,
4163                         $search_mode, $view_mode, $error) {
4164
4165                 $page_prev_link = "viewFeedGoPage(-1)";
4166                 $page_next_link = "viewFeedGoPage(1)";
4167                 $page_first_link = "viewFeedGoPage(0)";
4168
4169                 $catchup_page_link = "catchupPage()";
4170                 $catchup_feed_link = "catchupCurrentFeed()";
4171                 $catchup_sel_link = "catchupSelection()";
4172
4173                 $archive_sel_link = "archiveSelection()";
4174                 $delete_sel_link = "deleteSelection()";
4175
4176                 $sel_all_link = "selectArticles('all')";
4177                 $sel_unread_link = "selectArticles('unread')";
4178                 $sel_none_link = "selectArticles('none')";
4179                 $sel_inv_link = "selectArticles('invert')";
4180
4181                 $tog_unread_link = "selectionToggleUnread()";
4182                 $tog_marked_link = "selectionToggleMarked()";
4183                 $tog_published_link = "selectionTogglePublished()";
4184
4185                 $reply = "<div id=\"subtoolbar_main\">";
4186
4187                 $reply .= __('Select:')."
4188                         <a href=\"#\" onclick=\"$sel_all_link\">".__('All')."</a>,
4189                         <a href=\"#\" onclick=\"$sel_unread_link\">".__('Unread')."</a>,
4190                         <a href=\"#\" onclick=\"$sel_inv_link\">".__('Invert')."</a>,
4191                         <a href=\"#\" onclick=\"$sel_none_link\">".__('None')."</a></li>";
4192
4193                 $reply .= " ";
4194
4195                 $reply .= "<select dojoType=\"dijit.form.Select\"
4196                         onchange=\"headlineActionsChange(this)\">";
4197                 $reply .= "<option value=\"false\">".__('Actions...')."</option>";
4198
4199                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection toggle:')."</option>";
4200
4201                 $reply .= "<option value=\"$tog_unread_link\">".__('Unread')."</option>
4202                         <option value=\"$tog_marked_link\">".__('Starred')."</option>
4203                         <option value=\"$tog_published_link\">".__('Published')."</option>";
4204
4205                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection:')."</option>";
4206
4207                 $reply .= "<option value=\"$catchup_sel_link\">".__('Mark as read')."</option>";
4208
4209                 if ($feed_id != "0") {
4210                         $reply .= "<option value=\"$archive_sel_link\">".__('Archive')."</option>";
4211                 } else {
4212                         $reply .= "<option value=\"$archive_sel_link\">".__('Move back')."</option>";
4213                         $reply .= "<option value=\"$delete_sel_link\">".__('Delete')."</option>";
4214
4215                 }
4216
4217                 $reply .= "<option value=\"emailArticle(false)\">".__('Forward by email').
4218                         "</option>";
4219
4220                 if ($is_cat) $cat_q = "&is_cat=$is_cat";
4221
4222                 if ($search) {
4223                         $search_q = "&q=$search&m=$match_on&smode=$search_mode";
4224                 } else {
4225                         $search_q = "";
4226                 }
4227
4228                 $rss_link = htmlspecialchars(get_self_url_prefix() .
4229                         "/public.php?op=rss&id=$feed_id$cat_q$search_q");
4230
4231                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Feed:')."</option>";
4232
4233                 $reply .= "<option value=\"catchupPage()\">".__('Mark as read')."</option>";
4234
4235                 $reply .= "<option value=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">".__('View as RSS')."</option>";
4236
4237                 $reply .= "</select>";
4238
4239                 $reply .= "</div>";
4240
4241                 $reply .= "<div id=\"subtoolbar_ftitle\">";
4242
4243                 if ($feed_site_url) {
4244                         $target = "target=\"_blank\"";
4245                         $reply .= "<a title=\"".__("Visit the website")."\" $target href=\"$feed_site_url\">".
4246                                 truncate_string($feed_title,30)."</a>";
4247
4248                         if ($error) {
4249                                 $reply .= " (<span class=\"error\" title=\"$error\">Error</span>)";
4250                         }
4251
4252                 } else {
4253                         if ($feed_id < -10) {
4254                                 $label_id = -11-$feed_id;
4255
4256                                 $result = db_query($link, "SELECT fg_color, bg_color
4257                                         FROM ttrss_labels2 WHERE id = '$label_id' AND owner_uid = " .
4258                                         $_SESSION["uid"]);
4259
4260                                 if (db_num_rows($result) != 0) {
4261                                         $fg_color = db_fetch_result($result, 0, "fg_color");
4262                                         $bg_color = db_fetch_result($result, 0, "bg_color");
4263
4264                                         $reply .= "<span style=\"background : $bg_color; color : $fg_color\" >";
4265                                         $reply .= $feed_title;
4266                                         $reply .= "</span>";
4267                                 } else {
4268                                         $reply .= $feed_title;
4269                                 }
4270
4271                         } else {
4272                                 $reply .= $feed_title;
4273                         }
4274                 }
4275
4276                 $reply .= "
4277                         <a href=\"#\"
4278                                 title=\"".__("View as RSS feed")."\"
4279                                 onclick=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">
4280                                 <img class=\"noborder\" style=\"vertical-align : middle\" src=\"images/feed-icon-12x12.png\"></a>";
4281
4282                 $reply .= "</div>";
4283
4284                 return $reply;
4285         }
4286
4287         function outputFeedList($link, $special = true) {
4288
4289                 $feedlist = array();
4290
4291                 $enable_cats = get_pref($link, 'ENABLE_FEED_CATS');
4292
4293                 $feedlist['identifier'] = 'id';
4294                 $feedlist['label'] = 'name';
4295                 $feedlist['items'] = array();
4296
4297                 $owner_uid = $_SESSION["uid"];
4298
4299                 /* virtual feeds */
4300
4301                 if ($special) {
4302
4303                         if ($enable_cats) {
4304                                 $cat_hidden = get_pref($link, "_COLLAPSED_SPECIAL");
4305                                 $cat = feedlist_init_cat($link, -1, $cat_hidden);
4306                         } else {
4307                                 $cat['items'] = array();
4308                         }
4309
4310                         foreach (array(-4, -3, -1, -2, 0) as $i) {
4311                                 array_push($cat['items'], feedlist_init_feed($link, $i));
4312                         }
4313
4314                         if ($enable_cats) {
4315                                 array_push($feedlist['items'], $cat);
4316                         } else {
4317                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4318                         }
4319
4320                         $result = db_query($link, "SELECT * FROM
4321                                 ttrss_labels2 WHERE owner_uid = '$owner_uid' ORDER by caption");
4322
4323                         if (db_num_rows($result) > 0) {
4324
4325                                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
4326                                         $cat_hidden = get_pref($link, "_COLLAPSED_LABELS");
4327                                         $cat = feedlist_init_cat($link, -2, $cat_hidden);
4328                                 } else {
4329                                         $cat['items'] = array();
4330                                 }
4331
4332                                 while ($line = db_fetch_assoc($result)) {
4333
4334                                         $label_id = -$line['id'] - 11;
4335                                         $count = getFeedUnread($link, $label_id);
4336
4337                                         $feed = feedlist_init_feed($link, $label_id, false, $count);
4338
4339                                         $feed['fg_color'] = $line['fg_color'];
4340                                         $feed['bg_color'] = $line['bg_color'];
4341
4342                                         array_push($cat['items'], $feed);
4343                                 }
4344
4345                                 if ($enable_cats) {
4346                                         array_push($feedlist['items'], $cat);
4347                                 } else {
4348                                         $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4349                                 }
4350                         }
4351                 }
4352
4353 /*              if (get_pref($link, 'ENABLE_FEED_CATS')) {
4354                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4355                                 $order_by_qpart = "order_id,category,unread DESC,title";
4356                         } else {
4357                                 $order_by_qpart = "order_id,category,title";
4358                         }
4359                 } else {
4360                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4361                                 $order_by_qpart = "unread DESC,title";
4362                         } else {
4363                                 $order_by_qpart = "title";
4364                         }
4365                 } */
4366
4367                 /* real feeds */
4368
4369                 if ($enable_cats)
4370                         $order_by_qpart = "ttrss_feed_categories.order_id,category,
4371                                 ttrss_feeds.order_id,title";
4372                 else
4373                         $order_by_qpart = "title";
4374
4375                 $age_qpart = getMaxAgeSubquery();
4376
4377                 $query = "SELECT ttrss_feeds.id, ttrss_feeds.title,
4378                         ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated_noms,
4379                         cat_id,last_error,
4380                         ttrss_feed_categories.title AS category,
4381                         ttrss_feed_categories.collapsed,
4382                         value AS unread
4383                         FROM ttrss_feeds LEFT JOIN ttrss_feed_categories
4384                                 ON (ttrss_feed_categories.id = cat_id)
4385                         LEFT JOIN ttrss_counters_cache
4386                                 ON
4387                                         (ttrss_feeds.id = feed_id)
4388                         WHERE
4389                                 ttrss_feeds.owner_uid = '$owner_uid'
4390                         ORDER BY $order_by_qpart";
4391
4392                 $result = db_query($link, $query);
4393
4394                 $actid = $_REQUEST["actid"];
4395
4396                 if (db_num_rows($result) > 0) {
4397
4398                         $category = "";
4399
4400                         if (!$enable_cats)
4401                                 $cat['items'] = array();
4402                         else
4403                                 $cat = false;
4404
4405                         while ($line = db_fetch_assoc($result)) {
4406
4407                                 $feed = htmlspecialchars(trim($line["title"]));
4408
4409                                 if (!$feed) $feed = "[Untitled]";
4410
4411                                 $feed_id = $line["id"];
4412                                 $unread = $line["unread"];
4413
4414                                 $cat_id = $line["cat_id"];
4415                                 $tmp_category = $line["category"];
4416                                 if (!$tmp_category) $tmp_category = __("Uncategorized");
4417
4418                                 if ($category != $tmp_category && $enable_cats) {
4419
4420                                         $category = $tmp_category;
4421
4422                                         $collapsed = sql_bool_to_bool($line["collapsed"]);
4423
4424                                         // workaround for NULL category
4425                                         if ($category == __("Uncategorized")) {
4426                                                 $collapsed = get_pref($link, "_COLLAPSED_UNCAT");
4427                                         }
4428
4429                                         if ($cat) array_push($feedlist['items'], $cat);
4430
4431                                         $cat = feedlist_init_cat($link, $cat_id, $collapsed);
4432                                 }
4433
4434                                 $updated = make_local_datetime($link, $line["updated_noms"], false);
4435
4436                                 array_push($cat['items'], feedlist_init_feed($link, $feed_id,
4437                                         $feed, $unread, $line['last_error'], $updated));
4438                         }
4439
4440                         if ($enable_cats) {
4441                                 array_push($feedlist['items'], $cat);
4442                         } else {
4443                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4444                         }
4445
4446                 }
4447
4448                 return $feedlist;
4449         }
4450
4451         function get_article_tags($link, $id, $owner_uid = 0, $tag_cache = false) {
4452
4453                 global $memcache;
4454
4455                 $a_id = db_escape_string($id);
4456
4457                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4458
4459                 $query = "SELECT DISTINCT tag_name,
4460                         owner_uid as owner FROM
4461                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
4462                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
4463
4464                 $obj_id = md5("TAGS:$owner_uid:$id");
4465                 $tags = array();
4466
4467                 if ($memcache && $obj = $memcache->get($obj_id)) {
4468                         $tags = $obj;
4469                 } else {
4470                         /* check cache first */
4471
4472                         if ($tag_cache === false) {
4473                                 $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
4474                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4475
4476                                 $tag_cache = db_fetch_result($result, 0, "tag_cache");
4477                         }
4478
4479                         if ($tag_cache) {
4480                                 $tags = explode(",", $tag_cache);
4481                         } else {
4482
4483                                 /* do it the hard way */
4484
4485                                 $tmp_result = db_query($link, $query);
4486
4487                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
4488                                         array_push($tags, $tmp_line["tag_name"]);
4489                                 }
4490
4491                                 /* update the cache */
4492
4493                                 $tags_str = db_escape_string(join(",", $tags));
4494
4495                                 db_query($link, "UPDATE ttrss_user_entries
4496                                         SET tag_cache = '$tags_str' WHERE ref_id = '$id'
4497                                         AND owner_uid = " . $_SESSION["uid"]);
4498                         }
4499
4500                         if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);
4501                 }
4502
4503                 return $tags;
4504         }
4505
4506         function trim_array($array) {
4507                 $tmp = $array;
4508                 array_walk($tmp, 'trim');
4509                 return $tmp;
4510         }
4511
4512         function tag_is_valid($tag) {
4513                 if ($tag == '') return false;
4514                 if (preg_match("/^[0-9]*$/", $tag)) return false;
4515                 if (mb_strlen($tag) > 250) return false;
4516
4517                 if (function_exists('iconv')) {
4518                         $tag = iconv("utf-8", "utf-8", $tag);
4519                 }
4520
4521                 if (!$tag) return false;
4522
4523                 return true;
4524         }
4525
4526         function render_login_form($link, $mobile = 0) {
4527                 switch ($mobile) {
4528                 case 0:
4529                         require_once "login_form.php";
4530                         break;
4531                 case 1:
4532                         require_once "mobile/login_form.php";
4533                         break;
4534                 case 2:
4535                         require_once "mobile/classic/login_form.php";
4536                 }
4537         }
4538
4539         // from http://developer.apple.com/internet/safari/faq.html
4540         function no_cache_incantation() {
4541                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
4542                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
4543                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
4544                 header("Cache-Control: post-check=0, pre-check=0", false);
4545                 header("Pragma: no-cache"); // HTTP/1.0
4546         }
4547
4548         function format_warning($msg, $id = "") {
4549                 global $link;
4550                 return "<div class=\"warning\" id=\"$id\">
4551                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4552         }
4553
4554         function format_notice($msg, $id = "") {
4555                 global $link;
4556                 return "<div class=\"notice\" id=\"$id\">
4557                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
4558         }
4559
4560         function format_error($msg, $id = "") {
4561                 global $link;
4562                 return "<div class=\"error\" id=\"$id\">
4563                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4564         }
4565
4566         function print_notice($msg) {
4567                 return print format_notice($msg);
4568         }
4569
4570         function print_warning($msg) {
4571                 return print format_warning($msg);
4572         }
4573
4574         function print_error($msg) {
4575                 return print format_error($msg);
4576         }
4577
4578
4579         function T_sprintf() {
4580                 $args = func_get_args();
4581                 return vsprintf(__(array_shift($args)), $args);
4582         }
4583
4584         function format_inline_player($link, $url, $ctype) {
4585
4586                 $entry = "";
4587
4588                 if (strpos($ctype, "audio/") === 0) {
4589
4590                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
4591                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
4592                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
4593
4594                                 $id = 'AUDIO-' . uniqid();
4595
4596                                 $entry .= "<audio id=\"$id\"\">
4597                                         <source src=\"$url\"></source>
4598                                         </audio>";
4599
4600                                 $entry .= "<span onclick=\"player(this)\"
4601                                         title=\"".__("Click to play")."\" status=\"0\"
4602                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
4603
4604                         } else {
4605
4606                                 $entry .= "<object type=\"application/x-shockwave-flash\"
4607                                         data=\"lib/button/musicplayer.swf?song_url=$url\"
4608                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
4609                                         <param name=\"movie\"
4610                                                 value=\"lib/button/musicplayer.swf?song_url=$url\" />
4611                                         </object>";
4612                         }
4613                 }
4614
4615                 $filename = substr($url, strrpos($url, "/")+1);
4616
4617                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4618                         $filename . " (" . $ctype . ")" . "</a>";
4619
4620                 return $entry;
4621         }
4622
4623         function format_article($link, $id, $mark_as_read = true, $zoom_mode = false) {
4624
4625                 $rv = array();
4626
4627                 $rv['id'] = $id;
4628
4629                 /* we can figure out feed_id from article id anyway, why do we
4630                  * pass feed_id here? let's ignore the argument :( */
4631
4632                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4633                         WHERE ref_id = '$id'");
4634
4635                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4636
4637                 $rv['feed_id'] = $feed_id;
4638
4639                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
4640
4641                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
4642                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
4643
4644                 if (db_num_rows($result) == 1) {
4645                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4646                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
4647                 } else {
4648                         $rtl_content = false;
4649                         $always_display_enclosures = false;
4650                 }
4651
4652                 if ($rtl_content) {
4653                         $rtl_tag = "dir=\"RTL\"";
4654                         $rtl_class = "RTL";
4655                 } else {
4656                         $rtl_tag = "";
4657                         $rtl_class = "";
4658                 }
4659
4660                 if ($mark_as_read) {
4661                         $result = db_query($link, "UPDATE ttrss_user_entries
4662                                 SET unread = false,last_read = NOW()
4663                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4664
4665                         ccache_update($link, $feed_id, $_SESSION["uid"]);
4666                 }
4667
4668                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
4669                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
4670                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
4671                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
4672                         num_comments,
4673                         tag_cache,
4674                         author,
4675                         orig_feed_id,
4676                         note
4677                         FROM ttrss_entries,ttrss_user_entries
4678                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
4679
4680                 if ($result) {
4681
4682                         $line = db_fetch_assoc($result);
4683
4684                         if ($line["icon_url"]) {
4685                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
4686                         } else {
4687                                 $feed_icon = "&nbsp;";
4688                         }
4689
4690                         $feed_site_url = $line['site_url'];
4691
4692                         $num_comments = $line["num_comments"];
4693                         $entry_comments = "";
4694
4695                         if ($num_comments > 0) {
4696                                 if ($line["comments"]) {
4697                                         $comments_url = $line["comments"];
4698                                 } else {
4699                                         $comments_url = $line["link"];
4700                                 }
4701                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
4702                         } else {
4703                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
4704                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
4705                                 }
4706                         }
4707
4708                         if ($zoom_mode) {
4709                                 header("Content-Type: text/html");
4710                                 $rv['content'] .= "<html><head>
4711                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
4712                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
4713                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
4714                                         </head><body>";
4715                         }
4716
4717                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
4718                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
4719
4720                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
4721
4722                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
4723                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
4724
4725                         $entry_author = $line["author"];
4726
4727                         if ($entry_author) {
4728                                 $entry_author = __(" - ") . $entry_author;
4729                         }
4730
4731                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
4732                                 false, true);
4733
4734                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
4735
4736                         if ($line["link"]) {
4737                                 $rv['content'] .= "<div clear='both'><a target='_blank'
4738                                         title=\"".htmlspecialchars($line['title'])."\"
4739                                         href=\"" .
4740                                         $line["link"] . "\">" .
4741                                         truncate_string($line["title"], 100) .
4742                                         "<span class='author'>$entry_author</span></a></div>";
4743                         } else {
4744                                 $rv['content'] .= "<div clear='both'>" . $line["title"] . "$entry_author</div>";
4745                         }
4746
4747                         $tag_cache = $line["tag_cache"];
4748
4749                         if (!$tag_cache)
4750                                 $tags = get_article_tags($link, $id);
4751                         else
4752                                 $tags = explode(",", $tag_cache);
4753
4754                         $tags_str = format_tags_string($tags, $id);
4755                         $tags_str_full = join(", ", $tags);
4756
4757                         if (!$tags_str_full) $tags_str_full = __("no tags");
4758
4759                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
4760
4761                         $rv['content'] .= "<div style='float : right'>
4762                                 <img src='".theme_image($link, 'images/tag.png')."'
4763                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
4764
4765                         if (!$zoom_mode) {
4766                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
4767                                         <a title=\"".__('Edit tags for this article')."\"
4768                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
4769
4770                                 $rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
4771                                         id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
4772                                         position=\"below\">$tags_str_full</div>";
4773
4774                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
4775                                                 class='tagsPic' style=\"cursor : pointer\"
4776                                                 onclick=\"postOpenInNewTab(event, $id)\"
4777                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
4778
4779                                 //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
4780
4781                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-pub-note.png')."\"
4782                                                 class='tagsPic' style=\"cursor : pointer\"
4783                                                 onclick=\"editArticleNote($id)\"
4784                                                 alt='PubNote' title='".__('Edit article note')."'>";
4785
4786                                 if (DIGEST_ENABLE) {
4787                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
4788                                                 class='tagsPic' style=\"cursor : pointer\"
4789                                                 onclick=\"emailArticle($id)\"
4790                                                 alt='Zoom' title='".__('Forward by email')."'>";
4791                                 }
4792
4793                                 if (ENABLE_TWEET_BUTTON) {
4794                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
4795                                                         class='tagsPic' style=\"cursor : pointer\"
4796                                                         onclick=\"tweetArticle($id)\"
4797                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
4798                                 }
4799
4800                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-share.png')."\"
4801                                         class='tagsPic' style=\"cursor : pointer\"
4802                                         onclick=\"shareArticle(".$line['int_id'].")\"
4803                                         alt='Zoom' title='".__('Share by URL')."'>";
4804
4805                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
4806                                                 class='tagsPic' style=\"cursor : pointer\"
4807                                                 onclick=\"closeArticlePanel($id)\"
4808                                                 alt='Zoom' title='".__('Close this panel')."'>";
4809
4810                         } else {
4811                                 $tags_str = strip_tags($tags_str);
4812                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
4813                         }
4814                         $rv['content'] .= "</div>";
4815                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
4816
4817                         if ($line["orig_feed_id"]) {
4818
4819                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
4820                                         WHERE id = ".$line["orig_feed_id"]);
4821
4822                                 if (db_num_rows($tmp_result) != 0) {
4823
4824                                         $rv['content'] .= "<div clear='both'>";
4825                                         $rv['content'] .= __("Originally from:");
4826
4827                                         $rv['content'] .= "&nbsp;";
4828
4829                                         $tmp_line = db_fetch_assoc($tmp_result);
4830
4831                                         $rv['content'] .= "<a target='_blank'
4832                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
4833                                                 $tmp_line['title'] . "</a>";
4834
4835                                         $rv['content'] .= "&nbsp;";
4836
4837                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
4838                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
4839
4840                                         $rv['content'] .= "</div>";
4841                                 }
4842                         }
4843
4844                         $rv['content'] .= "</div>";
4845
4846                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
4847                                 if ($line['note']) {
4848                                         $rv['content'] .= format_article_note($id, $line['note']);
4849                                 }
4850                         $rv['content'] .= "</div>";
4851
4852                         $rv['content'] .= "<div class=\"postIcon\">" .
4853                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
4854                                 href=\"".htmlspecialchars($feed_site_url)."\">".
4855                                 $feed_icon . "</a></div>";
4856
4857                         $rv['content'] .= "<div class=\"postContent\">";
4858
4859                         $article_content = sanitize_rss($link, $line["content"], false, false,
4860                                 $feed_site_url);
4861
4862                         $rv['content'] .= $article_content;
4863
4864                         $rv['content'] .= format_article_enclosures($link, $id,
4865                                 $always_display_enclosures, $article_content);
4866
4867                         $rv['content'] .= "</div>";
4868
4869                         $rv['content'] .= "</div>";
4870
4871                 }
4872
4873                 if ($zoom_mode) {
4874                         $rv['content'] .= "
4875                                 <div style=\"text-align : center\">
4876                                 <button onclick=\"return window.close()\">".
4877                                         __("Close this window")."</button></div>";
4878                         $rv['content'] .= "</body></html>";
4879                 }
4880
4881                 return $rv;
4882
4883         }
4884
4885         function format_headlines_list($link, $feed, $subop, $view_mode, $limit, $cat_view,
4886                                         $next_unread_feed, $offset, $vgr_last_feed = false,
4887                                         $override_order = false) {
4888
4889                 $disable_cache = false;
4890
4891                 $reply = array();
4892
4893                 $timing_info = getmicrotime();
4894
4895                 $topmost_article_ids = array();
4896
4897                 if (!$offset) $offset = 0;
4898                 if ($subop == "undefined") $subop = "";
4899
4900                 $subop_split = explode(":", $subop);
4901
4902 /*              if ($subop == "CatchupSelected") {
4903                         $ids = explode(",", db_escape_string($_REQUEST["ids"]));
4904                         $cmode = sprintf("%d", $_REQUEST["cmode"]);
4905
4906                         catchupArticlesById($link, $ids, $cmode);
4907                 } */
4908
4909                 if ($subop == "ForceUpdate" && $feed && is_numeric($feed) > 0) {
4910                         update_rss_feed($link, $feed, true);
4911                 }
4912
4913                 if ($subop == "MarkAllRead")  {
4914                         catchup_feed($link, $feed, $cat_view);
4915
4916                         if (get_pref($link, 'ON_CATCHUP_SHOW_NEXT_FEED')) {
4917                                 if ($next_unread_feed) {
4918                                         $feed = $next_unread_feed;
4919                                 }
4920                         }
4921                 }
4922
4923                 if ($subop_split[0] == "MarkAllReadGR")  {
4924                         catchup_feed($link, $subop_split[1], false);
4925                 }
4926
4927                 // FIXME: might break tag display?
4928
4929                 if (is_numeric($feed) && $feed > 0 && !$cat_view) {
4930                         $result = db_query($link,
4931                                 "SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");
4932
4933                         if (db_num_rows($result) == 0) {
4934                                 $reply['content'] = "<div align='center'>".__('Feed not found.')."</div>";
4935                         }
4936                 }
4937
4938                 if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
4939
4940                         $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
4941                                 WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
4942
4943                         if (db_num_rows($result) == 1) {
4944                                 $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4945                         } else {
4946                                 $rtl_content = false;
4947                         }
4948
4949                         if ($rtl_content) {
4950                                 $rtl_tag = "dir=\"RTL\"";
4951                         } else {
4952                                 $rtl_tag = "";
4953                         }
4954                 } else {
4955                         $rtl_tag = "";
4956                         $rtl_content = false;
4957                 }
4958
4959                 @$search = db_escape_string($_REQUEST["query"]);
4960
4961                 if ($search) {
4962                         $disable_cache = true;
4963                 }
4964
4965                 @$search_mode = db_escape_string($_REQUEST["search_mode"]);
4966                 @$match_on = db_escape_string($_REQUEST["match_on"]);
4967
4968                 if (!$match_on) {
4969                         $match_on = "both";
4970                 }
4971
4972                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H0", $timing_info);
4973
4974 //              error_log("format_headlines_list: [" . $feed . "] subop [" . $subop . "]");
4975                 if( $search_mode == '' && $subop != '' ){
4976                     $search_mode = $subop;
4977                 }
4978 //              error_log("search_mode: " . $search_mode);
4979                 $qfh_ret = queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view,
4980                         $search, $search_mode, $match_on, $override_order, $offset);
4981
4982                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H1", $timing_info);
4983
4984                 $result = $qfh_ret[0];
4985                 $feed_title = $qfh_ret[1];
4986                 $feed_site_url = $qfh_ret[2];
4987                 $last_error = $qfh_ret[3];
4988
4989                 $vgroup_last_feed = $vgr_last_feed;
4990
4991 //              if (!$offset) {
4992
4993                         if (db_num_rows($result) > 0) {
4994                                 $reply['toolbar'] = format_headline_subtoolbar($link, $feed_site_url,
4995                                         $feed_title,
4996                                         $feed, $cat_view, $search, $match_on, $search_mode, $view_mode,
4997                                         $last_error);
4998                         }
4999 //              }
5000
5001                 $headlines_count = db_num_rows($result);
5002
5003                 if (db_num_rows($result) > 0) {
5004
5005                         $lnum = $offset;
5006
5007                         $num_unread = 0;
5008                         $cur_feed_title = '';
5009
5010                         $fresh_intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE") * 60 * 60;
5011
5012                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PS", $timing_info);
5013
5014                         while ($line = db_fetch_assoc($result)) {
5015
5016                                 $class = ($lnum % 2) ? "even" : "odd";
5017
5018                                 $id = $line["id"];
5019                                 $feed_id = $line["feed_id"];
5020                                 $label_cache = $line["label_cache"];
5021                                 $labels = false;
5022
5023                                 if ($label_cache) {
5024                                         $label_cache = json_decode($label_cache, true);
5025
5026                                         if ($label_cache) {
5027                                                 if ($label_cache["no-labels"] == 1)
5028                                                         $labels = array();
5029                                                 else
5030                                                         $labels = $label_cache;
5031                                         }
5032                                 }
5033
5034                                 if (!is_array($labels)) $labels = get_article_labels($link, $id);
5035
5036                                 $labels_str = "<span id=\"HLLCTR-$id\">";
5037                                 $labels_str .= format_article_labels($labels, $id);
5038                                 $labels_str .= "</span>";
5039
5040                                 if (count($topmost_article_ids) < 3) {
5041                                         array_push($topmost_article_ids, $id);
5042                                 }
5043
5044                                 if ($line["last_read"] == "" && !sql_bool_to_bool($line["unread"])) {
5045
5046                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5047                                                 theme_image($link, 'images/updated.png')."\"
5048                                                 alt=\"Updated\">";
5049                                 } else {
5050                                         $update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\"
5051                                                 alt=\"Updated\">";
5052                                 }
5053
5054                                 if (sql_bool_to_bool($line["unread"]) &&
5055                                         time() - strtotime($line["updated_noms"]) < $fresh_intl) {
5056
5057                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5058                                                 theme_image($link, 'images/fresh_sign.png')."\" alt=\"Fresh\">";
5059                                 }
5060
5061                                 if ($line["unread"] == "t" || $line["unread"] == "1") {
5062                                         $class .= " Unread";
5063                                         ++$num_unread;
5064                                         $is_unread = true;
5065                                 } else {
5066                                         $is_unread = false;
5067                                 }
5068
5069                                 if ($line["marked"] == "t" || $line["marked"] == "1") {
5070                                         $marked_pic = "<img id=\"FMPIC-$id\"
5071                                                 src=\"".theme_image($link, 'images/mark_set.png')."\"
5072                                                 class=\"markedPic\" alt=\"Unstar article\"
5073                                                 onclick='javascript:toggleMark($id)'>";
5074                                 } else {
5075                                         $marked_pic = "<img id=\"FMPIC-$id\"
5076                                                 src=\"".theme_image($link, 'images/mark_unset.png')."\"
5077                                                 class=\"markedPic\" alt=\"Star article\"
5078                                                 onclick='javascript:toggleMark($id)'>";
5079                                 }
5080
5081                                 if ($line["published"] == "t" || $line["published"] == "1") {
5082                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5083                                                 'images/pub_set.png')."\"
5084                                                 class=\"markedPic\"
5085                                                 alt=\"Unpublish article\" onclick='javascript:togglePub($id)'>";
5086                                 } else {
5087                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5088                                                 'images/pub_unset.png')."\"
5089                                                 class=\"markedPic\"
5090                                                 alt=\"Publish article\" onclick='javascript:togglePub($id)'>";
5091                                 }
5092
5093 #                               $content_link = "<a target=\"_blank\" href=\"".$line["link"]."\">" .
5094 #                                       $line["title"] . "</a>";
5095
5096 #                               $content_link = "<a
5097 #                                       href=\"" . htmlspecialchars($line["link"]) . "\"
5098 #                                       onclick=\"view($id,$feed_id);\">" .
5099 #                                       $line["title"] . "</a>";
5100
5101 #                               $content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
5102 #                                       $line["title"] . "</a>";
5103
5104                                 $updated_fmt = make_local_datetime($link, $line["updated_noms"], false);
5105
5106                                 if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5107                                         $content_preview = truncate_string(strip_tags($line["content_preview"]),
5108                                                 100);
5109                                 }
5110
5111                                 $score = $line["score"];
5112
5113                                 $score_pic = theme_image($link,
5114                                         "images/" . get_score_pic($score));
5115
5116 /*                              $score_title = __("(Click to change)");
5117                                 $score_pic = "<img class='hlScorePic' src=\"images/$score_pic\"
5118                                         onclick=\"adjustArticleScore($id, $score)\" title=\"$score $score_title\">"; */
5119
5120                                 $score_pic = "<img class='hlScorePic' src=\"$score_pic\"
5121                                         title=\"$score\">";
5122
5123                                 if ($score > 500) {
5124                                         $hlc_suffix = "H";
5125                                 } else if ($score < -100) {
5126                                         $hlc_suffix = "L";
5127                                 } else {
5128                                         $hlc_suffix = "";
5129                                 }
5130
5131                                 $entry_author = $line["author"];
5132
5133                                 if ($entry_author) {
5134                                         $entry_author = " - $entry_author";
5135                                 }
5136
5137                                 $has_feed_icon = feed_has_icon($feed_id);
5138
5139                                 if ($has_feed_icon) {
5140                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5141                                 } else {
5142                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/feed-icon-12x12.png\" alt=\"\">";
5143                                 }
5144
5145                                 if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
5146
5147                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5148                                                 if ($feed_id != $vgroup_last_feed && $line["feed_title"]) {
5149
5150                                                         $cur_feed_title = $line["feed_title"];
5151                                                         $vgroup_last_feed = $feed_id;
5152
5153                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5154
5155                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5156
5157                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5158                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5159                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5160                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5161
5162                                                 }
5163                                         }
5164
5165                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5166                                                 onmouseout='postMouseOut($id)'";
5167
5168                                         $reply['content'] .= "<div class='$class' id='RROW-$id' $mouseover_attrs>";
5169
5170                                         $reply['content'] .= "<div class='hlUpdPic'>$update_pic</div>";
5171
5172                                         $reply['content'] .= "<div class='hlLeft'>";
5173
5174                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"tSR(this)\"
5175                                                         id=\"RCHK-$id\">";
5176
5177                                         $reply['content'] .= "$marked_pic";
5178                                         $reply['content'] .= "$published_pic";
5179
5180                                         $reply['content'] .= "</div>";
5181
5182                                         $reply['content'] .= "<div onclick='return hlClicked(event, $id)'
5183                                                 class=\"hlTitle\"><span class='hlContent$hlc_suffix'>";
5184                                         $reply['content'] .= "<a id=\"RTITLE-$id\"
5185                                                 href=\"" . htmlspecialchars($line["link"]) . "\"
5186                                                 onclick=\"\">" .
5187                                                 truncate_string($line["title"], 200);
5188
5189                                         if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5190                                                 if ($content_preview) {
5191                                                         $reply['content'] .= "<span class=\"contentPreview\"> - $content_preview</span>";
5192                                                 }
5193                                         }
5194
5195                                         $reply['content'] .= "</a></span>";
5196
5197                                         $reply['content'] .= $labels_str;
5198
5199                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED') &&
5200                                                 defined('_SHOW_FEED_TITLE_IN_VFEEDS')) {
5201                                                 if (@$line["feed_title"]) {
5202                                                         $reply['content'] .= "<span class=\"hlFeed\">
5203                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5204                                                                 $line["feed_title"]."</a>)
5205                                                         </span>";
5206                                                 }
5207                                         }
5208
5209                                         $reply['content'] .= "</div>";
5210
5211                                         $reply['content'] .= "<span class=\"hlUpdated\">$updated_fmt</span>";
5212                                         $reply['content'] .= "<div class=\"hlRight\">";
5213
5214                                         $reply['content'] .= $score_pic;
5215
5216                                         if ($line["feed_title"] && !get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5217
5218                                                 $reply['content'] .= "<span onclick=\"viewfeed($feed_id)\"
5219                                                         style=\"cursor : pointer\"
5220                                                         title=\"".htmlspecialchars($line['feed_title'])."\">
5221                                                         $feed_icon_img<span>";
5222                                         }
5223
5224                                         $reply['content'] .= "</div>";
5225                                         $reply['content'] .= "</div>";
5226
5227                                 } else {
5228
5229                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED') && $line["feed_title"]) {
5230                                                 if ($feed_id != $vgroup_last_feed) {
5231
5232                                                         $cur_feed_title = $line["feed_title"];
5233                                                         $vgroup_last_feed = $feed_id;
5234
5235                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5236
5237                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5238
5239                                                         $has_feed_icon = feed_has_icon($feed_id);
5240
5241                                                         if ($has_feed_icon) {
5242                                                                 $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5243                                                         } else {
5244                                                                 //$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
5245                                                         }
5246
5247                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5248                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5249                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5250                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5251                                                 }
5252                                         }
5253
5254                                         $expand_cdm = get_pref($link, 'CDM_EXPANDED');
5255
5256                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5257                                                 onmouseout='postMouseOut($id)'";
5258
5259                                         $reply['content'] .= "<div class=\"$class\"
5260                                                 id=\"RROW-$id\" $mouseover_attrs'>";
5261
5262                                         $reply['content'] .= "<div class=\"cdmHeader\">";
5263
5264                                         $reply['content'] .= "<div>";
5265
5266                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"toggleSelectRowById(this,
5267                                                         'RROW-$id')\" id=\"RCHK-$id\"/>";
5268
5269                                         $reply['content'] .= "$marked_pic";
5270                                         $reply['content'] .= "$published_pic";
5271
5272                                         $reply['content'] .= "</div>";
5273
5274                                         $reply['content'] .= "<span id=\"RTITLE-$id\"
5275                                                 onclick=\"return cdmClicked(event, $id);\"
5276                                                 class=\"titleWrap$hlc_suffix\">
5277                                                 <a class=\"title\"
5278                                                 title=\"".htmlspecialchars($line['title'])."\"
5279                                                 target=\"_blank\" href=\"".
5280                                                 htmlspecialchars($line["link"])."\">".
5281                                                 truncate_string($line["title"], 100) .
5282                                                 " $entry_author</a>";
5283
5284                                         $reply['content'] .= $labels_str;
5285
5286                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED') &&
5287                                                 defined('_SHOW_FEED_TITLE_IN_VFEEDS')) {
5288                                                 if (@$line["feed_title"]) {
5289                                                         $reply['content'] .= "<span class=\"hlFeed\">
5290                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5291                                                                 $line["feed_title"]."</a>)
5292                                                         </span>";
5293                                                 }
5294                                         }
5295
5296                                         if (!$expand_cdm)
5297                                                 $content_hidden = "style=\"display : none\"";
5298                                         else
5299                                                 $excerpt_hidden = "style=\"display : none\"";
5300
5301                                         $reply['content'] .= "<span $excerpt_hidden
5302                                                 id=\"CEXC-$id\" class=\"cdmExcerpt\"> - $content_preview</span>";
5303
5304                                         $reply['content'] .= "</span>";
5305
5306                                         $reply['content'] .= "<div>";
5307                                         $reply['content'] .= "<span class='updated'>$updated_fmt</span>";
5308                                         $reply['content'] .= "$score_pic";
5309
5310                                         if (!get_pref($link, "VFEED_GROUP_BY_FEED") && $line["feed_title"]) {
5311                                                 $reply['content'] .= "<span style=\"cursor : pointer\"
5312                                                         title=\"".htmlspecialchars($line["feed_title"])."\"
5313                                                         onclick=\"viewfeed($feed_id)\">$feed_icon_img</span>";
5314                                         }
5315                                         $reply['content'] .= "<div class=\"updPic\">$update_pic</div>";
5316                                         $reply['content'] .= "</div>";
5317
5318                                         $reply['content'] .= "</div>";
5319
5320                                         $reply['content'] .= "<div class=\"cdmContent\" $content_hidden
5321                                                 onclick=\"return cdmClicked(event, $id);\"
5322                                                 id=\"CICD-$id\">";
5323
5324                                         $reply['content'] .= "<div class=\"cdmContentInner\">";
5325
5326                         if ($line["orig_feed_id"]) {
5327
5328                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
5329                                         WHERE id = ".$line["orig_feed_id"]);
5330
5331                                                 if (db_num_rows($tmp_result) != 0) {
5332
5333                                                         $reply['content'] .= "<div clear='both'>";
5334                                                         $reply['content'] .= __("Originally from:");
5335
5336                                                         $reply['content'] .= "&nbsp;";
5337
5338                                                         $tmp_line = db_fetch_assoc($tmp_result);
5339
5340                                                         $reply['content'] .= "<a target='_blank'
5341                                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
5342                                                                 $tmp_line['title'] . "</a>";
5343
5344                                                         $reply['content'] .= "&nbsp;";
5345
5346                                                         $reply['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
5347                                                         $reply['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
5348
5349                                                         $reply['content'] .= "</div>";
5350                                                 }
5351                                         }
5352
5353                                         $feed_site_url = $line["site_url"];
5354
5355                                         $article_content = sanitize_rss($link, $line["content_preview"],
5356                                                         false, false, $feed_site_url);
5357
5358                                         $reply['content'] .= "<div id=\"POSTNOTE-$id\">";
5359                                         if ($line['note']) {
5360                                                 $reply['content'] .= format_article_note($id, $line['note']);
5361                                         }
5362                                         $reply['content'] .= "</div>";
5363
5364                                         $reply['content'] .= "<span id=\"CWRAP-$id\">";
5365                                         $reply['content'] .= $expand_cdm ? $article_content : '';
5366                                         $reply['content'] .= "</span>";
5367
5368 /*                                      $tmp_result = db_query($link, "SELECT always_display_enclosures FROM
5369                                                 ttrss_feeds WHERE id = ".
5370                                                 (($line['feed_id'] == null) ? $line['orig_feed_id'] :
5371                                                         $line['feed_id'])." AND owner_uid = ".$_SESSION["uid"]);
5372
5373                                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($tmp_result,
5374                                                 0, "always_display_enclosures")); */
5375
5376                                         $always_display_enclosures = sql_bool_to_bool($line["always_display_enclosures"]);
5377
5378                                         $reply['content'] .= format_article_enclosures($link, $id, $always_display_enclosures,
5379                                                 $article_content);
5380
5381                                         $reply['content'] .= "</div>";
5382
5383                                         $reply['content'] .= "<div class=\"cdmFooter\">";
5384
5385                                         $tag_cache = $line["tag_cache"];
5386
5387                                         $tags_str = format_tags_string(
5388                                                 get_article_tags($link, $id, $_SESSION["uid"], $tag_cache),
5389                                                 $id);
5390
5391                                         $reply['content'] .= "<img src='".theme_image($link,
5392                                                         'images/tag.png')."' alt='Tags' title='Tags'>
5393                                                 <span id=\"ATSTR-$id\">$tags_str</span>
5394                                                 <a title=\"".__('Edit tags for this article')."\"
5395                                                 href=\"#\" onclick=\"editArticleTags($id, $feed_id, true)\">(+)</a>";
5396
5397                                         $num_comments = $line["num_comments"];
5398                                         $entry_comments = "";
5399
5400                                         if ($num_comments > 0) {
5401                                                 if ($line["comments"]) {
5402                                                         $comments_url = $line["comments"];
5403                                                 } else {
5404                                                         $comments_url = $line["link"];
5405                                                 }
5406                                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
5407                                         } else {
5408                                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
5409                                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
5410                                                 }
5411                                         }
5412
5413                                         if ($entry_comments) $reply['content'] .= "&nbsp;($entry_comments)";
5414
5415                                         $reply['content'] .= "<div style=\"float : right\">";
5416
5417                                         $reply['content'] .= "<img src=\"images/art-zoom.png\"
5418                                                 onclick=\"zoomToArticle(event, $id)\"
5419                                                 style=\"cursor : pointer\"
5420                                                 alt='Zoom'
5421                                                 title='".__('Open article in new tab')."'>";
5422
5423                                         //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
5424
5425                                         $reply['content'] .= "<img src=\"images/art-pub-note.png\"
5426                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5427                                                 onclick=\"editArticleNote($id)\"
5428                                                 alt='PubNote' title='".__('Edit article note')."'>";
5429
5430                                         if (DIGEST_ENABLE) {
5431                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
5432                                                         style=\"cursor : pointer\"
5433                                                         onclick=\"emailArticle($id)\"
5434                                                         alt='Zoom' title='".__('Forward by email')."'>";
5435                                         }
5436
5437                                         if (ENABLE_TWEET_BUTTON) {
5438                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
5439                                                         class='tagsPic' style=\"cursor : pointer\"
5440                                                         onclick=\"tweetArticle($id)\"
5441                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
5442                                         }
5443
5444                                         $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-share.png')."\"
5445                                                 class='tagsPic' style=\"cursor : pointer\"
5446                                                 onclick=\"shareArticle(".$line['int_id'].")\"
5447                                                 alt='Zoom' title='".__('Share by URL')."'>";
5448
5449                                         $reply['content'] .= "<img src=\"images/digest_checkbox.png\"
5450                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5451                                                 onclick=\"dismissArticle($id)\"
5452                                                 alt='Dismiss' title='".__('Dismiss article')."'>";
5453
5454                                         $reply['content'] .= "</div>";
5455                                         $reply['content'] .= "</div>";
5456
5457                                         $reply['content'] .= "</div>";
5458
5459                                         $reply['content'] .= "</div>";
5460
5461                                 }
5462
5463                                 ++$lnum;
5464                         }
5465
5466                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PE", $timing_info);
5467
5468                 } else {
5469                         $message = "";
5470
5471                         switch ($view_mode) {
5472                                 case "unread":
5473                                         $message = __("No unread articles found to display.");
5474                                         break;
5475                                 case "updated":
5476                                         $message = __("No updated articles found to display.");
5477                                         break;
5478                                 case "marked":
5479                                         $message = __("No starred articles found to display.");
5480                                         break;
5481                                 default:
5482                                         if ($feed < -10) {
5483                                                 $message = __("No articles found to display. You can assign articles to labels manually (see the Actions menu above) or use a filter.");
5484                                         } else {
5485                                                 $message = __("No articles found to display.");
5486                                         }
5487                         }
5488
5489                         if (!$offset && $message) {
5490                                 $reply['content'] .= "<div class='whiteBox'>$message";
5491
5492                                 $reply['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
5493
5494                                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
5495                                         WHERE owner_uid = " . $_SESSION['uid']);
5496
5497                                 $last_updated = db_fetch_result($result, 0, "last_updated");
5498                                 $last_updated = make_local_datetime($link, $last_updated, false);
5499
5500                                 $reply['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
5501
5502                                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
5503                                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
5504
5505                                 $num_errors = db_fetch_result($result, 0, "num_errors");
5506
5507                                 if ($num_errors > 0) {
5508                                         $reply['content'] .= "<br/>";
5509                                         $reply['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
5510                                                 __('Some feeds have update errors (click for details)')."</a>";
5511                                 }
5512                                 $reply['content'] .= "</span></p></div>";
5513                         }
5514                 }
5515
5516                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H2", $timing_info);
5517
5518                 return array($topmost_article_ids, $headlines_count, $feed, $disable_cache,
5519                         $vgroup_last_feed, $reply);
5520         }
5521
5522 // from here: http://www.roscripts.com/Create_tag_cloud-71.html
5523
5524         function printTagCloud($link) {
5525
5526                 $query = "SELECT tag_name, COUNT(post_int_id) AS count
5527                         FROM ttrss_tags WHERE owner_uid = ".$_SESSION["uid"]."
5528                         GROUP BY tag_name ORDER BY count DESC LIMIT 50";
5529
5530                 $result = db_query($link, $query);
5531
5532                 $tags = array();
5533
5534                 while ($line = db_fetch_assoc($result)) {
5535                         $tags[$line["tag_name"]] = $line["count"];
5536                 }
5537
5538         if( count($tags) == 0 ){ return; }
5539
5540                 ksort($tags);
5541
5542                 $max_size = 32; // max font size in pixels
5543                 $min_size = 11; // min font size in pixels
5544
5545                 // largest and smallest array values
5546                 $max_qty = max(array_values($tags));
5547                 $min_qty = min(array_values($tags));
5548
5549                 // find the range of values
5550                 $spread = $max_qty - $min_qty;
5551                 if ($spread == 0) { // we don't want to divide by zero
5552                                 $spread = 1;
5553                 }
5554
5555                 // set the font-size increment
5556                 $step = ($max_size - $min_size) / ($spread);
5557
5558                 // loop through the tag array
5559                 foreach ($tags as $key => $value) {
5560                         // calculate font-size
5561                         // find the $value in excess of $min_qty
5562                         // multiply by the font-size increment ($size)
5563                         // and add the $min_size set above
5564                         $size = round($min_size + (($value - $min_qty) * $step));
5565
5566                         $key_escaped = str_replace("'", "\\'", $key);
5567
5568                         echo "<a href=\"javascript:viewfeed('$key_escaped') \" style=\"font-size: " .
5569                                 $size . "px\" title=\"$value articles tagged with " .
5570                                 $key . '">' . $key . '</a> ';
5571                 }
5572         }
5573
5574         function print_checkpoint($n, $s) {
5575                 $ts = getmicrotime();
5576                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
5577                 return $ts;
5578         }
5579
5580         function sanitize_tag($tag) {
5581                 $tag = trim($tag);
5582
5583                 $tag = mb_strtolower($tag, 'utf-8');
5584
5585                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
5586
5587 //              $tag = str_replace('"', "", $tag);
5588 //              $tag = str_replace("+", " ", $tag);
5589                 $tag = str_replace("technorati tag: ", "", $tag);
5590
5591                 return $tag;
5592         }
5593
5594         function get_self_url_prefix() {
5595                 return SELF_URL_PATH;
5596         }
5597
5598         function opml_publish_url($link){
5599
5600                 $url_path = get_self_url_prefix();
5601                 $url_path .= "/opml.php?op=publish&key=" .
5602                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
5603
5604                 return $url_path;
5605         }
5606
5607         /**
5608          * Purge a feed contents, marked articles excepted.
5609          *
5610          * @param mixed $link The database connection.
5611          * @param integer $id The id of the feed to purge.
5612          * @return void
5613          */
5614         function clear_feed_articles($link, $id) {
5615
5616                 if ($id != 0) {
5617                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5618                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5619                 } else {
5620                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5621                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5622                 }
5623
5624                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
5625                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
5626
5627                 ccache_update($link, $id, $_SESSION['uid']);
5628         } // function clear_feed_articles
5629
5630         /**
5631          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
5632          *
5633          * @return string The Mozilla Firefox feed adding URL.
5634          */
5635         function add_feed_url() {
5636                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
5637
5638                 $url_path = get_self_url_prefix() .
5639                         "/backend.php?op=pref-feeds&quiet=1&subop=add&feed_url=%s";
5640                 return $url_path;
5641         } // function add_feed_url
5642
5643         /**
5644          * Encrypt a password in SHA1.
5645          *
5646          * @param string $pass The password to encrypt.
5647          * @param string $login A optionnal login.
5648          * @return string The encrypted password.
5649          */
5650         function encrypt_password($pass, $login = '') {
5651                 if ($login) {
5652                         return "SHA1X:" . sha1("$login:$pass");
5653                 } else {
5654                         return "SHA1:" . sha1($pass);
5655                 }
5656         } // function encrypt_password
5657
5658         /**
5659          * Update a feed batch.
5660          * Used by daemons to update n feeds by run.
5661          * Only update feed needing a update, and not being processed
5662          * by another process.
5663          *
5664          * @param mixed $link Database link
5665          * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
5666          * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
5667          * @param boolean $debug Set to false to disable debug output. Default to true.
5668          * @return void
5669          */
5670         function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
5671                 // Process all other feeds using last_updated and interval parameters
5672
5673                 // Test if the user has loggued in recently. If not, it does not update its feeds.
5674                 if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
5675                         if (DB_TYPE == "pgsql") {
5676                                 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
5677                         } else {
5678                                 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
5679                         }
5680                 } else {
5681                         $login_thresh_qpart = "";
5682                 }
5683
5684                 // Test if the feed need a update (update interval exceded).
5685                 if (DB_TYPE == "pgsql") {
5686                         $update_limit_qpart = "AND ((
5687                                         ttrss_feeds.update_interval = 0
5688                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
5689                                 ) OR (
5690                                         ttrss_feeds.update_interval > 0
5691                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
5692                                 ) OR ttrss_feeds.last_updated IS NULL)";
5693                 } else {
5694                         $update_limit_qpart = "AND ((
5695                                         ttrss_feeds.update_interval = 0
5696                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
5697                                 ) OR (
5698                                         ttrss_feeds.update_interval > 0
5699                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
5700                                 ) OR ttrss_feeds.last_updated IS NULL)";
5701                 }
5702
5703                 // Test if feed is currently being updated by another process.
5704                 if (DB_TYPE == "pgsql") {
5705                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '5 minutes')";
5706                 } else {
5707                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 5 MINUTE))";
5708                 }
5709
5710                 // Test if there is a limit to number of updated feeds
5711                 $query_limit = "";
5712                 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
5713
5714                 $random_qpart = sql_random_function();
5715
5716                 // We search for feed needing update.
5717                 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
5718                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
5719                                 ttrss_feeds.update_interval
5720                         FROM
5721                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
5722                         WHERE
5723                                 ttrss_feeds.owner_uid = ttrss_users.id
5724                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
5725                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
5726                                 $login_thresh_qpart $update_limit_qpart
5727                          $updstart_thresh_qpart
5728                         ORDER BY $random_qpart $query_limit");
5729
5730                 $user_prefs_cache = array();
5731
5732                 if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
5733
5734                 // Here is a little cache magic in order to minimize risk of double feed updates.
5735                 $feeds_to_update = array();
5736                 while ($line = db_fetch_assoc($result)) {
5737                         $feeds_to_update[$line['id']] = $line;
5738                 }
5739
5740                 // We update the feed last update started date before anything else.
5741                 // There is no lag due to feed contents downloads
5742                 // It prevent an other process to update the same feed.
5743                 $feed_ids = array_keys($feeds_to_update);
5744                 if($feed_ids) {
5745                         db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
5746                                 WHERE id IN (%s)", implode(',', $feed_ids)));
5747                 }
5748
5749                 // For each feed, we call the feed update function.
5750                 while ($line = array_pop($feeds_to_update)) {
5751
5752                         if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
5753
5754                         update_rss_feed($link, $line["id"], true);
5755
5756                         sleep(1); // prevent flood (FIXME make this an option?)
5757                 }
5758
5759                 // Send feed digests by email if needed.
5760                 if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
5761
5762         } // function update_daemon_common
5763
5764         function sanitize_article_content($text) {
5765                 # we don't support CDATA sections in articles, they break our own escaping
5766                 $text = preg_replace("/\[\[CDATA/", "", $text);
5767                 $text = preg_replace("/\]\]\>/", "", $text);
5768                 return $text;
5769         }
5770
5771         function load_filters($link, $feed, $owner_uid, $action_id = false) {
5772                 $filters = array();
5773
5774                 global $memcache;
5775
5776                 $obj_id = md5("FILTER:$feed:$owner_uid:$action_id");
5777
5778                 if ($memcache && $obj = $memcache->get($obj_id)) {
5779
5780                         return $obj;
5781
5782                 } else {
5783
5784                         if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
5785
5786                         $result = db_query($link, "SELECT reg_exp,
5787                                 ttrss_filter_types.name AS name,
5788                                 ttrss_filter_actions.name AS action,
5789                                 inverse,
5790                                 action_param,
5791                                 filter_param
5792                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
5793                                         enabled = true AND
5794                                         $ftype_query_part
5795                                         owner_uid = $owner_uid AND
5796                                         ttrss_filter_types.id = filter_type AND
5797                                         ttrss_filter_actions.id = action_id AND
5798                                         (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
5799
5800                         while ($line = db_fetch_assoc($result)) {
5801                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
5802                                         $filter["reg_exp"] = $line["reg_exp"];
5803                                         $filter["action"] = $line["action"];
5804                                         $filter["action_param"] = $line["action_param"];
5805                                         $filter["filter_param"] = $line["filter_param"];
5806                                         $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
5807
5808                                         array_push($filters[$line["name"]], $filter);
5809                                 }
5810
5811                         if ($memcache) $memcache->add($obj_id, $filters, 0, 3600*8);
5812
5813                         return $filters;
5814                 }
5815         }
5816
5817         function get_score_pic($score) {
5818                 if ($score > 100) {
5819                         return "score_high.png";
5820                 } else if ($score > 0) {
5821                         return "score_half_high.png";
5822                 } else if ($score < -100) {
5823                         return "score_low.png";
5824                 } else if ($score < 0) {
5825                         return "score_half_low.png";
5826                 } else {
5827                         return "score_neutral.png";
5828                 }
5829         }
5830
5831         function feed_has_icon($id) {
5832                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
5833         }
5834
5835         function init_connection($link) {
5836                 if (DB_TYPE == "pgsql") {
5837                         pg_query($link, "set client_encoding = 'UTF-8'");
5838                         pg_set_client_encoding("UNICODE");
5839                         pg_query($link, "set datestyle = 'ISO, european'");
5840                         pg_query($link, "set TIME ZONE 0");
5841                 } else {
5842                         db_query($link, "SET time_zone = '+0:0'");
5843
5844                         if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
5845                                 db_query($link, "SET NAMES " . MYSQL_CHARSET);
5846         //                      db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
5847                         }
5848                 }
5849         }
5850
5851         function update_feedbrowser_cache($link) {
5852
5853                 $result = db_query($link, "SELECT feed_url, site_url, title, COUNT(id) AS subscribers
5854                         FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5855                                 WHERE tf.feed_url = ttrss_feeds.feed_url
5856                                 AND (private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%'))
5857                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
5858
5859                 db_query($link, "BEGIN");
5860
5861                 db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
5862
5863                 $count = 0;
5864
5865                 while ($line = db_fetch_assoc($result)) {
5866                         $subscribers = db_escape_string($line["subscribers"]);
5867                         $feed_url = db_escape_string($line["feed_url"]);
5868                         $title = db_escape_string($line["title"]);
5869                         $site_url = db_escape_string($line["site_url"]);
5870
5871                         $tmp_result = db_query($link, "SELECT subscribers FROM
5872                                 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
5873
5874                         if (db_num_rows($tmp_result) == 0) {
5875
5876                                 db_query($link, "INSERT INTO ttrss_feedbrowser_cache
5877                                         (feed_url, site_url, title, subscribers) VALUES ('$feed_url',
5878                                                 '$site_url', '$title', '$subscribers')");
5879
5880                                 ++$count;
5881
5882                         }
5883
5884                 }
5885
5886                 db_query($link, "COMMIT");
5887
5888                 return $count;
5889
5890         }
5891
5892         /* function ccache_zero($link, $feed_id, $owner_uid) {
5893                 db_query($link, "UPDATE ttrss_counters_cache SET
5894                         value = 0, updated = NOW() WHERE
5895                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5896         } */
5897
5898         function ccache_zero_all($link, $owner_uid) {
5899                 db_query($link, "UPDATE ttrss_counters_cache SET
5900                         value = 0 WHERE owner_uid = '$owner_uid'");
5901
5902                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
5903                         value = 0 WHERE owner_uid = '$owner_uid'");
5904         }
5905
5906         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
5907
5908                 if (!$is_cat) {
5909                         $table = "ttrss_counters_cache";
5910                 } else {
5911                         $table = "ttrss_cat_counters_cache";
5912                 }
5913
5914                 db_query($link, "DELETE FROM $table WHERE
5915                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5916
5917         }
5918
5919         function ccache_update_all($link, $owner_uid) {
5920
5921                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
5922
5923                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
5924                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5925
5926                         while ($line = db_fetch_assoc($result)) {
5927                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
5928                         }
5929
5930                         /* We have to manually include category 0 */
5931
5932                         ccache_update($link, 0, $owner_uid, true);
5933
5934                 } else {
5935                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
5936                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5937
5938                         while ($line = db_fetch_assoc($result)) {
5939                                 print ccache_update($link, $line["feed_id"], $owner_uid);
5940
5941                         }
5942
5943                 }
5944         }
5945
5946         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
5947                 $no_update = false) {
5948
5949                 if (!is_numeric($feed_id)) return;
5950
5951                 if (!$is_cat) {
5952                         $table = "ttrss_counters_cache";
5953                         if ($feed_id > 0) {
5954                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
5955                                         WHERE id = '$feed_id'");
5956                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
5957                         }
5958                 } else {
5959                         $table = "ttrss_cat_counters_cache";
5960                 }
5961
5962                 if (DB_TYPE == "pgsql") {
5963                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
5964                 } else if (DB_TYPE == "mysql") {
5965                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
5966                 }
5967
5968                 $result = db_query($link, "SELECT value FROM $table
5969                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
5970                         LIMIT 1");
5971
5972                 if (db_num_rows($result) == 1) {
5973                         return db_fetch_result($result, 0, "value");
5974                 } else {
5975                         if ($no_update) {
5976                                 return -1;
5977                         } else {
5978                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
5979                         }
5980                 }
5981
5982         }
5983
5984         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
5985                 $update_pcat = true) {
5986
5987                 if (!is_numeric($feed_id)) return;
5988
5989                 if (!$is_cat && $feed_id > 0) {
5990                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
5991                                 WHERE id = '$feed_id'");
5992                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
5993                 }
5994
5995                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
5996
5997                 /* When updating a label, all we need to do is recalculate feed counters
5998                  * because labels are not cached */
5999
6000                 if ($feed_id < 0) {
6001                         ccache_update_all($link, $owner_uid);
6002                         return;
6003                 }
6004
6005                 if (!$is_cat) {
6006                         $table = "ttrss_counters_cache";
6007                 } else {
6008                         $table = "ttrss_cat_counters_cache";
6009                 }
6010
6011                 if ($is_cat && $feed_id >= 0) {
6012                         if ($feed_id != 0) {
6013                                 $cat_qpart = "cat_id = '$feed_id'";
6014                         } else {
6015                                 $cat_qpart = "cat_id IS NULL";
6016                         }
6017
6018                         /* Recalculate counters for child feeds */
6019
6020                         $result = db_query($link, "SELECT id FROM ttrss_feeds
6021                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
6022
6023                         while ($line = db_fetch_assoc($result)) {
6024                                 ccache_update($link, $line["id"], $owner_uid, false, false);
6025                         }
6026
6027                         $result = db_query($link, "SELECT SUM(value) AS sv
6028                                 FROM ttrss_counters_cache, ttrss_feeds
6029                                 WHERE id = feed_id AND $cat_qpart AND
6030                                 ttrss_feeds.owner_uid = '$owner_uid'");
6031
6032                         $unread = (int) db_fetch_result($result, 0, "sv");
6033
6034                 } else {
6035                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
6036                 }
6037
6038                 db_query($link, "BEGIN");
6039
6040                 $result = db_query($link, "SELECT feed_id FROM $table
6041                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
6042
6043                 if (db_num_rows($result) == 1) {
6044                         db_query($link, "UPDATE $table SET
6045                                 value = '$unread', updated = NOW() WHERE
6046                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
6047
6048                 } else {
6049                         db_query($link, "INSERT INTO $table
6050                                 (feed_id, value, owner_uid, updated)
6051                                 VALUES
6052                                 ($feed_id, $unread, $owner_uid, NOW())");
6053                 }
6054
6055                 db_query($link, "COMMIT");
6056
6057                 if ($feed_id > 0 && $prev_unread != $unread) {
6058
6059                         if (!$is_cat) {
6060
6061                                 /* Update parent category */
6062
6063                                 if ($update_pcat) {
6064
6065                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
6066                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
6067
6068                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
6069
6070                                         ccache_update($link, $cat_id, $owner_uid, true);
6071
6072                                 }
6073                         }
6074                 } else if ($feed_id < 0) {
6075                         ccache_update_all($link, $owner_uid);
6076                 }
6077
6078                 return $unread;
6079         }
6080
6081         /* function ccache_cleanup($link, $owner_uid) {
6082
6083                 if (DB_TYPE == "pgsql") {
6084                         db_query($link, "DELETE FROM ttrss_counters_cache AS c1 WHERE
6085                                 (SELECT count(*) FROM ttrss_counters_cache AS c2
6086                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
6087                                         AND owner_uid = '$owner_uid'");
6088
6089                         db_query($link, "DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
6090                                 (SELECT count(*) FROM ttrss_cat_counters_cache AS c2
6091                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
6092                                         AND owner_uid = '$owner_uid'");
6093                 } else {
6094                         db_query($link, "DELETE c1 FROM
6095                                         ttrss_counters_cache AS c1,
6096                                         ttrss_counters_cache AS c2
6097                                 WHERE
6098                                         c1.owner_uid = '$owner_uid' AND
6099                                         c1.owner_uid = c2.owner_uid AND
6100                                         c1.feed_id = c2.feed_id");
6101
6102                         db_query($link, "DELETE c1 FROM
6103                                         ttrss_cat_counters_cache AS c1,
6104                                         ttrss_cat_counters_cache AS c2
6105                                 WHERE
6106                                         c1.owner_uid = '$owner_uid' AND
6107                                         c1.owner_uid = c2.owner_uid AND
6108                                         c1.feed_id = c2.feed_id");
6109
6110                 }
6111         } */
6112
6113         function label_find_id($link, $label, $owner_uid) {
6114                 $result = db_query($link,
6115                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
6116                                 AND owner_uid = '$owner_uid' LIMIT 1");
6117
6118                 if (db_num_rows($result) == 1) {
6119                         return db_fetch_result($result, 0, "id");
6120                 } else {
6121                         return 0;
6122                 }
6123         }
6124
6125         function get_article_labels($link, $id) {
6126                 global $memcache;
6127
6128                 $obj_id = md5("LABELS:$id:" . $_SESSION["uid"]);
6129
6130                 $rv = array();
6131
6132                 if ($memcache && $obj = $memcache->get($obj_id)) {
6133                         return $obj;
6134                 } else {
6135
6136                         $result = db_query($link, "SELECT label_cache FROM
6137                                 ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
6138                                 $_SESSION["uid"]);
6139
6140                         $label_cache = db_fetch_result($result, 0, "label_cache");
6141
6142                         if ($label_cache) {
6143
6144                                 $label_cache = json_decode($label_cache, true);
6145
6146                                 if ($label_cache["no-labels"] == 1)
6147                                         return $rv;
6148                                 else
6149                                         return $label_cache;
6150                         }
6151
6152                         $result = db_query($link,
6153                                 "SELECT DISTINCT label_id,caption,fg_color,bg_color
6154                                         FROM ttrss_labels2, ttrss_user_labels2
6155                                 WHERE id = label_id
6156                                         AND article_id = '$id'
6157                                         AND owner_uid = ".$_SESSION["uid"] . "
6158                                 ORDER BY caption");
6159
6160                         while ($line = db_fetch_assoc($result)) {
6161                                 $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
6162                                         $line["bg_color"]);
6163                                 array_push($rv, $rk);
6164                         }
6165                         if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6166
6167                         if (count($rv) > 0)
6168                                 label_update_cache($link, $id, $rv);
6169                         else
6170                                 label_update_cache($link, $id, array("no-labels" => 1));
6171                 }
6172
6173                 return $rv;
6174         }
6175
6176
6177         function label_find_caption($link, $label, $owner_uid) {
6178                 $result = db_query($link,
6179                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
6180                                 AND owner_uid = '$owner_uid' LIMIT 1");
6181
6182                 if (db_num_rows($result) == 1) {
6183                         return db_fetch_result($result, 0, "caption");
6184                 } else {
6185                         return "";
6186                 }
6187         }
6188
6189         function label_update_cache($link, $id, $labels = false, $force = false) {
6190
6191                 if ($force)
6192                         label_clear_cache($link, $id);
6193
6194                 if (!$labels)
6195                         $labels = get_article_labels($link, $id);
6196
6197                 $labels = db_escape_string(json_encode($labels));
6198
6199                 db_query($link, "UPDATE ttrss_user_entries SET
6200                         label_cache = '$labels' WHERE ref_id = '$id'");
6201
6202         }
6203
6204         function label_clear_cache($link, $id) {
6205
6206                 db_query($link, "UPDATE ttrss_user_entries SET
6207                         label_cache = '' WHERE ref_id = '$id'");
6208
6209         }
6210
6211         function label_remove_article($link, $id, $label, $owner_uid) {
6212
6213                 $label_id = label_find_id($link, $label, $owner_uid);
6214
6215                 if (!$label_id) return;
6216
6217                 $result = db_query($link,
6218                         "DELETE FROM ttrss_user_labels2
6219                         WHERE
6220                                 label_id = '$label_id' AND
6221                                 article_id = '$id'");
6222
6223                 label_clear_cache($link, $id);
6224         }
6225
6226         function label_add_article($link, $id, $label, $owner_uid) {
6227
6228                 global $memcache;
6229
6230                 if ($memcache) {
6231                         $obj_id = md5("LABELS:$id:$owner_uid");
6232                         $memcache->delete($obj_id);
6233                 }
6234
6235                 $label_id = label_find_id($link, $label, $owner_uid);
6236
6237                 if (!$label_id) return;
6238
6239                 $result = db_query($link,
6240                         "SELECT
6241                                 article_id FROM ttrss_labels2, ttrss_user_labels2
6242                         WHERE
6243                                 label_id = id AND
6244                                 label_id = '$label_id' AND
6245                                 article_id = '$id' AND owner_uid = '$owner_uid'
6246                         LIMIT 1");
6247
6248                 if (db_num_rows($result) == 0) {
6249                         db_query($link, "INSERT INTO ttrss_user_labels2
6250                                 (label_id, article_id) VALUES ('$label_id', '$id')");
6251                 }
6252
6253                 label_clear_cache($link, $id);
6254
6255         }
6256
6257         function label_remove($link, $id, $owner_uid) {
6258                 global $memcache;
6259
6260                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6261
6262                 if ($memcache) {
6263                         $obj_id = md5("LABELS:$id:$owner_uid");
6264                         $memcache->delete($obj_id);
6265                 }
6266
6267                 db_query($link, "BEGIN");
6268
6269                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6270                         WHERE id = '$id'");
6271
6272                 $caption = db_fetch_result($result, 0, "caption");
6273
6274                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
6275                         AND owner_uid = " . $owner_uid);
6276
6277                 if (db_affected_rows($link, $result) != 0 && $caption) {
6278
6279                         /* Remove access key for the label */
6280
6281                         $ext_id = -11 - $id;
6282
6283                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6284                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
6285
6286                         /* Disable filters that reference label being removed */
6287
6288                         db_query($link, "UPDATE ttrss_filters SET
6289                                 enabled = false WHERE action_param = '$caption'
6290                                         AND action_id = 7
6291                                         AND owner_uid = " . $owner_uid);
6292
6293                         /* Remove cached data */
6294
6295                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
6296                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
6297
6298                 }
6299
6300                 db_query($link, "COMMIT");
6301         }
6302
6303         function label_create($link, $caption) {
6304
6305                 db_query($link, "BEGIN");
6306
6307                 $result = false;
6308
6309                 $result = db_query($link, "SELECT id FROM ttrss_labels2
6310                         WHERE caption = '$caption' AND owner_uid =  ". $_SESSION["uid"]);
6311
6312                 if (db_num_rows($result) == 0) {
6313                         $result = db_query($link,
6314                                 "INSERT INTO ttrss_labels2 (caption,owner_uid)
6315                                         VALUES ('$caption', '".$_SESSION["uid"]."')");
6316
6317                         $result = db_affected_rows($link, $result) != 0;
6318                 }
6319
6320                 db_query($link, "COMMIT");
6321
6322                 return $result;
6323         }
6324
6325         function format_tags_string($tags, $id) {
6326
6327                 $tags_str = "";
6328                 $tags_nolinks_str = "";
6329
6330                 $num_tags = 0;
6331
6332                 $tag_limit = 6;
6333
6334                 $formatted_tags = array();
6335
6336                 foreach ($tags as $tag) {
6337                         $num_tags++;
6338                         $tag_escaped = str_replace("'", "\\'", $tag);
6339
6340                         if (mb_strlen($tag) > 30) {
6341                                 $tag = truncate_string($tag, 30);
6342                         }
6343
6344                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
6345
6346                         array_push($formatted_tags, $tag_str);
6347
6348                         $tmp_tags_str = implode(", ", $formatted_tags);
6349
6350                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
6351                                 break;
6352                         }
6353                 }
6354
6355                 $tags_str = implode(", ", $formatted_tags);
6356
6357                 if ($num_tags < count($tags)) {
6358                         $tags_str .= ", &hellip;";
6359                 }
6360
6361                 if ($num_tags == 0) {
6362                         $tags_str = __("no tags");
6363                 }
6364
6365                 return $tags_str;
6366
6367         }
6368
6369         function format_article_labels($labels, $id) {
6370
6371                 $labels_str = "";
6372
6373                 foreach ($labels as $l) {
6374                         $labels_str .= sprintf("<span class='hlLabelRef'
6375                                 style='color : %s; background-color : %s'>%s</span>",
6376                                         $l[2], $l[3], $l[1]);
6377                         }
6378
6379                 return $labels_str;
6380
6381         }
6382
6383         function format_article_note($id, $note) {
6384
6385                 $str = "<div class='articleNote'        onclick=\"editArticleNote($id)\">
6386                         <div class='noteEdit' onclick=\"editArticleNote($id)\">".
6387                         __('(edit note)')."</div>$note</div>";
6388
6389                 return $str;
6390         }
6391
6392         function toggle_collapse_cat($link, $cat_id, $mode) {
6393                 if ($cat_id > 0) {
6394                         $mode = bool_to_sql_bool($mode);
6395
6396                         db_query($link, "UPDATE ttrss_feed_categories SET
6397                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
6398                                 $_SESSION["uid"]);
6399                 } else {
6400                         $pref_name = '';
6401
6402                         switch ($cat_id) {
6403                         case -1:
6404                                 $pref_name = '_COLLAPSED_SPECIAL';
6405                                 break;
6406                         case -2:
6407                                 $pref_name = '_COLLAPSED_LABELS';
6408                                 break;
6409                         case 0:
6410                                 $pref_name = '_COLLAPSED_UNCAT';
6411                                 break;
6412                         }
6413
6414                         if ($pref_name) {
6415                                 if ($mode) {
6416                                         set_pref($link, $pref_name, 'true');
6417                                 } else {
6418                                         set_pref($link, $pref_name, 'false');
6419                                 }
6420                         }
6421                 }
6422         }
6423
6424         function remove_feed($link, $id, $owner_uid) {
6425
6426                 if ($id > 0) {
6427
6428                         /* save starred articles in Archived feed */
6429
6430                         db_query($link, "BEGIN");
6431
6432                         /* prepare feed if necessary */
6433
6434                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6435                                 WHERE id = '$id'");
6436
6437                         if (db_num_rows($result) == 0) {
6438                                 db_query($link, "INSERT INTO ttrss_archived_feeds
6439                                         (id, owner_uid, title, feed_url, site_url)
6440                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6441                                 WHERE id = '$id'");
6442                         }
6443
6444                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
6445                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
6446                                         marked = true AND owner_uid = $owner_uid");
6447
6448                         /* Remove access key for the feed */
6449
6450                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6451                                 feed_id = '$id' AND owner_uid = $owner_uid");
6452
6453                         /* remove the feed */
6454
6455                         db_query($link, "DELETE FROM ttrss_feeds
6456                                         WHERE id = '$id' AND owner_uid = $owner_uid");
6457
6458                         db_query($link, "COMMIT");
6459
6460                         if (file_exists(ICONS_DIR . "/$id.ico")) {
6461                                 unlink(ICONS_DIR . "/$id.ico");
6462                         }
6463
6464                         ccache_remove($link, $id, $owner_uid);
6465
6466                 } else {
6467                         label_remove($link, -11-$id, $owner_uid);
6468                         ccache_remove($link, -11-$id, $owner_uid);
6469                 }
6470         }
6471
6472         function add_feed_category($link, $feed_cat) {
6473
6474                 if (!$feed_cat) return false;
6475
6476                 db_query($link, "BEGIN");
6477
6478                 $result = db_query($link,
6479                         "SELECT id FROM ttrss_feed_categories
6480                         WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
6481
6482                 if (db_num_rows($result) == 0) {
6483
6484                         $result = db_query($link,
6485                                 "INSERT INTO ttrss_feed_categories (owner_uid,title)
6486                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
6487
6488                         db_query($link, "COMMIT");
6489
6490                         return true;
6491                 }
6492
6493                 return false;
6494         }
6495
6496         function remove_feed_category($link, $id, $owner_uid) {
6497
6498                 db_query($link, "DELETE FROM ttrss_feed_categories
6499                         WHERE id = '$id' AND owner_uid = $owner_uid");
6500
6501                 ccache_remove($link, $id, $owner_uid, true);
6502         }
6503
6504         function archive_article($link, $id, $owner_uid) {
6505                 db_query($link, "BEGIN");
6506
6507                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6508                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
6509
6510                 if (db_num_rows($result) != 0) {
6511
6512                         /* prepare the archived table */
6513
6514                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
6515
6516                         if ($feed_id) {
6517                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6518                                         WHERE id = '$feed_id'");
6519
6520                                 if (db_num_rows($result) == 0) {
6521                                         db_query($link, "INSERT INTO ttrss_archived_feeds
6522                                                 (id, owner_uid, title, feed_url, site_url)
6523                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6524                                         WHERE id = '$feed_id'");
6525                                 }
6526
6527                                 db_query($link, "UPDATE ttrss_user_entries
6528                                         SET orig_feed_id = feed_id, feed_id = NULL
6529                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6530                         }
6531                 }
6532
6533                 db_query($link, "COMMIT");
6534         }
6535
6536         function getArticleFeed($link, $id) {
6537                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6538                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6539
6540                 if (db_num_rows($result) != 0) {
6541                         return db_fetch_result($result, 0, "feed_id");
6542                 } else {
6543                         return 0;
6544                 }
6545         }
6546
6547         /**
6548          * Fixes incomplete URLs by prepending "http://".
6549          * Also replaces feed:// with http://, and
6550          * prepends a trailing slash if the url is a domain name only.
6551          *
6552          * @param string $url Possibly incomplete URL
6553          *
6554          * @return string Fixed URL.
6555          */
6556         function fix_url($url) {
6557                 if (strpos($url, '://') === false) {
6558                         $url = 'http://' . $url;
6559                 } else if (substr($url, 0, 5) == 'feed:') {
6560                         $url = 'http:' . substr($url, 5);
6561                 }
6562
6563                 //prepend slash if the URL has no slash in it
6564                 // "http://www.example" -> "http://www.example/"
6565                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
6566                         $url .= '/';
6567                 }
6568
6569                 if ($url != "http:///")
6570                         return $url;
6571                 else
6572                         return '';
6573         }
6574
6575         function validate_feed_url($url) {
6576                 $parts = parse_url($url);
6577
6578                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
6579
6580         }
6581
6582         function get_article_enclosures($link, $id) {
6583
6584                 global $memcache;
6585
6586                 $query = "SELECT * FROM ttrss_enclosures
6587                         WHERE post_id = '$id' AND content_url != ''";
6588
6589                 $obj_id = md5("ENCLOSURES:$id");
6590
6591                 $rv = array();
6592
6593                 if ($memcache && $obj = $memcache->get($obj_id)) {
6594                         $rv = $obj;
6595                 } else {
6596                         $result = db_query($link, $query);
6597
6598                         if (db_num_rows($result) > 0) {
6599                                 while ($line = db_fetch_assoc($result)) {
6600                                         array_push($rv, $line);
6601                                 }
6602                                 if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6603                         }
6604                 }
6605
6606                 return $rv;
6607         }
6608
6609         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset) {
6610
6611                         $feeds = array();
6612
6613                         /* Labels */
6614
6615                         if ($cat_id == -4 || $cat_id == -2) {
6616                                 $counters = getLabelCounters($link, true);
6617
6618                                 foreach (array_values($counters) as $cv) {
6619
6620                                         $unread = $cv["counter"];
6621
6622                                         if ($unread || !$unread_only) {
6623
6624                                                 $row = array(
6625                                                                 "id" => $cv["id"],
6626                                                                 "title" => $cv["description"],
6627                                                                 "unread" => $cv["counter"],
6628                                                                 "cat_id" => -2,
6629                                                         );
6630
6631                                                 array_push($feeds, $row);
6632                                         }
6633                                 }
6634                         }
6635
6636                         /* Virtual feeds */
6637
6638                         if ($cat_id == -4 || $cat_id == -1) {
6639                                 foreach (array(-1, -2, -3, -4, 0) as $i) {
6640                                         $unread = getFeedUnread($link, $i);
6641
6642                                         if ($unread || !$unread_only) {
6643                                                 $title = getFeedTitle($link, $i);
6644
6645                                                 $row = array(
6646                                                                 "id" => $i,
6647                                                                 "title" => $title,
6648                                                                 "unread" => $unread,
6649                                                                 "cat_id" => -1,
6650                                                         );
6651                                                 array_push($feeds, $row);
6652                                         }
6653
6654                                 }
6655                         }
6656
6657                         /* Real feeds */
6658
6659                         if ($limit) {
6660                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
6661                         } else {
6662                                 $limit_qpart = "";
6663                         }
6664
6665                         if ($cat_id == -4 || $cat_id == -3) {
6666                                 $result = db_query($link, "SELECT
6667                                         id, feed_url, cat_id, title, ".
6668                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6669                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
6670                                                 " ORDER BY cat_id, title " . $limit_qpart);
6671                         } else {
6672
6673                                 if ($cat_id)
6674                                         $cat_qpart = "cat_id = '$cat_id'";
6675                                 else
6676                                         $cat_qpart = "cat_id IS NULL";
6677
6678                                 $result = db_query($link, "SELECT
6679                                         id, feed_url, cat_id, title, ".
6680                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6681                                                 FROM ttrss_feeds WHERE
6682                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
6683                                                 " ORDER BY cat_id, title " . $limit_qpart);
6684                         }
6685
6686                         while ($line = db_fetch_assoc($result)) {
6687
6688                                 $unread = getFeedUnread($link, $line["id"]);
6689
6690                                 $has_icon = feed_has_icon($line['id']);
6691
6692                                 if ($unread || !$unread_only) {
6693
6694                                         $row = array(
6695                                                         "feed_url" => $line["feed_url"],
6696                                                         "title" => $line["title"],
6697                                                         "id" => (int)$line["id"],
6698                                                         "unread" => (int)$unread,
6699                                                         "has_icon" => $has_icon,
6700                                                         "cat_id" => (int)$line["cat_id"],
6701                                                         "last_updated" => strtotime($line["last_updated"])
6702                                                 );
6703
6704                                         array_push($feeds, $row);
6705                                 }
6706                         }
6707
6708                 return $feeds;
6709         }
6710
6711         function api_get_headlines($link, $feed_id, $limit, $offset,
6712                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
6713                                 $include_attachments, $since_id) {
6714
6715                         /* do not rely on params below */
6716
6717                         $search = db_escape_string($_REQUEST["search"]);
6718                         $search_mode = db_escape_string($_REQUEST["search_mode"]);
6719                         $match_on = db_escape_string($_REQUEST["match_on"]);
6720
6721                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
6722                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
6723                                 $order, $offset, 0, false, $since_id);
6724
6725                         $result = $qfh_ret[0];
6726                         $feed_title = $qfh_ret[1];
6727
6728                         $headlines = array();
6729
6730                         while ($line = db_fetch_assoc($result)) {
6731                                 $is_updated = ($line["last_read"] == "" &&
6732                                         ($line["unread"] != "t" && $line["unread"] != "1"));
6733
6734                                 $tags = explode(",", $line["tag_cache"]);
6735                                 $labels = json_decode($line["label_cache"], true);
6736
6737                                 //if (!$tags) $tags = get_article_tags($link, $line["id"]);
6738                                 //if (!$labels) $labels = get_article_labels($link, $line["id"]);
6739
6740                                 $headline_row = array(
6741                                                 "id" => (int)$line["id"],
6742                                                 "unread" => sql_bool_to_bool($line["unread"]),
6743                                                 "marked" => sql_bool_to_bool($line["marked"]),
6744                                                 "published" => sql_bool_to_bool($line["published"]),
6745                                                 "updated" => strtotime($line["updated"]),
6746                                                 "is_updated" => $is_updated,
6747                                                 "title" => $line["title"],
6748                                                 "link" => $line["link"],
6749                                                 "feed_id" => $line["feed_id"],
6750                                                 "tags" => $tags,
6751                                         );
6752
6753                                         if ($include_attachments)
6754                                                 $headline_row['attachments'] = get_article_enclosures($link,
6755                                                         $line['id']);
6756
6757                                 if ($show_excerpt) {
6758                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
6759                                         $headline_row["excerpt"] = $excerpt;
6760                                 }
6761
6762                                 if ($show_content) {
6763                                         $headline_row["content"] = $line["content_preview"];
6764                                 }
6765
6766                                 // unify label output to ease parsing
6767                                 if ($labels["no-labels"] == 1) $labels = array();
6768
6769                                 $headline_row["labels"] = $labels;
6770
6771                                 array_push($headlines, $headline_row);
6772                         }
6773
6774                         return $headlines;
6775         }
6776
6777         function generate_error_feed($link, $error) {
6778                 $reply = array();
6779
6780                 $reply['headlines']['id'] = -6;
6781                 $reply['headlines']['is_cat'] = false;
6782
6783                 $reply['headlines']['toolbar'] = '';
6784                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
6785
6786                 $reply['headlines-info'] = array("count" => 0,
6787                         "vgroup_last_feed" => '',
6788                         "unread" => 0,
6789                         "disable_cache" => true);
6790
6791                 return $reply;
6792         }
6793
6794
6795         function generate_dashboard_feed($link) {
6796                 $reply = array();
6797
6798                 $reply['headlines']['id'] = -5;
6799                 $reply['headlines']['is_cat'] = false;
6800
6801                 $reply['headlines']['toolbar'] = '';
6802                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
6803
6804                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
6805
6806                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
6807                         WHERE owner_uid = " . $_SESSION['uid']);
6808
6809                 $last_updated = db_fetch_result($result, 0, "last_updated");
6810                 $last_updated = make_local_datetime($link, $last_updated, false);
6811
6812                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
6813
6814                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
6815                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
6816
6817                 $num_errors = db_fetch_result($result, 0, "num_errors");
6818
6819                 if ($num_errors > 0) {
6820                         $reply['headlines']['content'] .= "<br/>";
6821                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
6822                                 __('Some feeds have update errors (click for details)')."</a>";
6823                 }
6824                 $reply['headlines']['content'] .= "</span></p>";
6825
6826                 $reply['headlines-info'] = array("count" => 0,
6827                         "vgroup_last_feed" => '',
6828                         "unread" => 0,
6829                         "disable_cache" => true);
6830
6831                 return $reply;
6832         }
6833
6834         function save_email_address($link, $email) {
6835                 // FIXME: implement persistent storage of emails
6836
6837                 if (!$_SESSION['stored_emails'])
6838                         $_SESSION['stored_emails'] = array();
6839
6840                 if (!in_array($email, $_SESSION['stored_emails']))
6841                         array_push($_SESSION['stored_emails'], $email);
6842         }
6843
6844         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6845                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6846
6847                 $sql_is_cat = bool_to_sql_bool($is_cat);
6848
6849                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6850                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6851                         AND owner_uid = " . $owner_uid);
6852
6853                 if (db_num_rows($result) == 1) {
6854                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6855
6856                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
6857                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
6858                                 AND owner_uid = " . $owner_uid);
6859
6860                         return $key;
6861
6862                 } else {
6863                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
6864                 }
6865         }
6866
6867         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6868
6869                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6870
6871                 $sql_is_cat = bool_to_sql_bool($is_cat);
6872
6873                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6874                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6875                         AND owner_uid = " . $owner_uid);
6876
6877                 if (db_num_rows($result) == 1) {
6878                         return db_fetch_result($result, 0, "access_key");
6879                 } else {
6880                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6881
6882                         $result = db_query($link, "INSERT INTO ttrss_access_keys
6883                                 (access_key, feed_id, is_cat, owner_uid)
6884                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
6885
6886                         return $key;
6887                 }
6888                 return false;
6889         }
6890
6891         /**
6892          * Extracts RSS/Atom feed URLs from the given HTML URL.
6893          *
6894          * @param string $url HTML page URL
6895          *
6896          * @return array Array of feeds. Key is the full URL, value the title
6897          */
6898         function get_feeds_from_html($url, $login = false, $pass = false)
6899         {
6900                 $url     = fix_url($url);
6901                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
6902
6903                 libxml_use_internal_errors(true);
6904
6905                 $content = @fetch_file_contents($url, false, $login, $pass);
6906
6907                 $doc = new DOMDocument();
6908                 $doc->loadHTML($content);
6909                 $xpath = new DOMXPath($doc);
6910                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
6911                 $feedUrls = array();
6912                 foreach ($entries as $entry) {
6913                         if ($entry->hasAttribute('href')) {
6914                                 $title = $entry->getAttribute('title');
6915                                 if ($title == '') {
6916                                         $title = $entry->getAttribute('type');
6917                                 }
6918                                 $feedUrl = rewrite_relative_url(
6919                                         $baseUrl, $entry->getAttribute('href')
6920                                 );
6921                                 $feedUrls[$feedUrl] = $title;
6922                         }
6923                 }
6924                 return $feedUrls;
6925         }
6926
6927         /**
6928          * Checks if the content behind the given URL is a HTML file
6929          *
6930          * @param string $url URL to check
6931          *
6932          * @return boolean True if the URL contains HTML content
6933          */
6934         function url_is_html($url, $login = false, $pass = false) {
6935                 $content = substr(fetch_file_contents($url, false, $login, $pass), 0, 1000);
6936
6937                 if (stripos($content, '<html>') === false
6938                         && stripos($content, '<html ') === false
6939                 ) {
6940                         return false;
6941                 }
6942
6943                 return true;
6944         }
6945
6946         function print_label_select($link, $name, $value, $attributes = "") {
6947
6948                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6949                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6950
6951                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
6952                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
6953
6954                 while ($line = db_fetch_assoc($result)) {
6955
6956                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
6957
6958                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
6959                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
6960
6961                 }
6962
6963 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
6964
6965                 print "</select>";
6966
6967
6968         }
6969
6970         function format_article_enclosures($link, $id, $always_display_enclosures,
6971                                         $article_content) {
6972
6973                 $result = get_article_enclosures($link, $id);
6974                 $rv = '';
6975
6976                 if (count($result) > 0) {
6977
6978                         $entries_html = array();
6979                         $entries = array();
6980
6981                         foreach ($result as $line) {
6982
6983                                 $url = $line["content_url"];
6984                                 $ctype = $line["content_type"];
6985
6986                                 if (!$ctype) $ctype = __("unknown type");
6987
6988 #                               $filename = substr($url, strrpos($url, "/")+1);
6989
6990                                 $entry = format_inline_player($link, $url, $ctype);
6991
6992 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
6993 #                                       $filename . " (" . $ctype . ")" . "</a>";
6994
6995                                 array_push($entries_html, $entry);
6996
6997                                 $entry = array();
6998
6999                                 $entry["type"] = $ctype;
7000                                 $entry["filename"] = $filename;
7001                                 $entry["url"] = $url;
7002
7003                                 array_push($entries, $entry);
7004                         }
7005
7006                         $rv .= "<div class=\"postEnclosures\">";
7007
7008                         if (!get_pref($link, "STRIP_IMAGES")) {
7009                                 if ($always_display_enclosures ||
7010                                                         !preg_match("/<img/i", $article_content)) {
7011
7012                                         foreach ($entries as $entry) {
7013
7014                                                 if (preg_match("/image/", $entry["type"]) ||
7015                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
7016
7017                                                                 $rv .= "<p><img
7018                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
7019                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
7020                                                 }
7021                                         }
7022                                 }
7023                         }
7024
7025                         if (count($entries) == 1) {
7026                                 $rv .= __("Attachment:") . " ";
7027                         } else {
7028                                 $rv .= __("Attachments:") . " ";
7029                         }
7030
7031                         $rv .= join(", ", $entries_html);
7032
7033                         $rv .= "</div>";
7034                 }
7035
7036                 return $rv;
7037         }
7038
7039         function getLastArticleId($link) {
7040                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
7041                         WHERE owner_uid = " . $_SESSION["uid"]);
7042
7043                 if (db_num_rows($result) == 1) {
7044                         return db_fetch_result($result, 0, "id");
7045                 } else {
7046                         return -1;
7047                 }
7048         }
7049
7050         function build_url($parts) {
7051                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
7052         }
7053
7054         /**
7055          * Converts a (possibly) relative URL to a absolute one.
7056          *
7057          * @param string $url     Base URL (i.e. from where the document is)
7058          * @param string $rel_url Possibly relative URL in the document
7059          *
7060          * @return string Absolute URL
7061          */
7062         function rewrite_relative_url($url, $rel_url) {
7063                 if (strpos($rel_url, "://") !== false) {
7064                         return $rel_url;
7065                 } else if (strpos($rel_url, "/") === 0)
7066                 {
7067                         $parts = parse_url($url);
7068                         $parts['path'] = $rel_url;
7069
7070                         return build_url($parts);
7071
7072                 } else {
7073                         $parts = parse_url($url);
7074                         if (!isset($parts['path'])) {
7075                                 $parts['path'] = '/';
7076                         }
7077                         $dir = $parts['path'];
7078                         if (substr($dir, -1) !== '/') {
7079                                 $dir = dirname($parts['path']);
7080                                 $dir !== '/' && $dir .= '/';
7081                         }
7082                         $parts['path'] = $dir . $rel_url;
7083
7084                         return build_url($parts);
7085                 }
7086         }
7087
7088         function sphinx_search($query, $offset = 0, $limit = 30) {
7089                 $sphinxClient = new SphinxClient();
7090
7091                 $sphinxClient->SetServer('localhost', 9312);
7092                 $sphinxClient->SetConnectTimeout(1);
7093
7094                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
7095                         'feed_title' => 20));
7096
7097                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
7098                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
7099                 $sphinxClient->SetLimits($offset, $limit, 1000);
7100                 $sphinxClient->SetArrayResult(false);
7101                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
7102
7103                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
7104
7105                 $ids = array();
7106
7107                 if (is_array($result['matches'])) {
7108                         foreach (array_keys($result['matches']) as $int_id) {
7109                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
7110                                 array_push($ids, $ref_id);
7111                         }
7112                 }
7113
7114                 return $ids;
7115         }
7116
7117         function cleanup_tags($link, $days = 14, $limit = 1000) {
7118
7119                 if (DB_TYPE == "pgsql") {
7120                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
7121                 } else if (DB_TYPE == "mysql") {
7122                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
7123                 }
7124
7125                 $tags_deleted = 0;
7126
7127                 while ($limit > 0) {
7128                         $limit_part = 500;
7129
7130                         $query = "SELECT ttrss_tags.id AS id
7131                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
7132                                 WHERE post_int_id = int_id AND $interval_query AND
7133                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
7134
7135                         $result = db_query($link, $query);
7136
7137                         $ids = array();
7138
7139                         while ($line = db_fetch_assoc($result)) {
7140                                 array_push($ids, $line['id']);
7141                         }
7142
7143                         if (count($ids) > 0) {
7144                                 $ids = join(",", $ids);
7145                                 print ".";
7146
7147                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
7148                                 $tags_deleted += db_affected_rows($link, $tmp_result);
7149                         } else {
7150                                 break;
7151                         }
7152
7153                         $limit -= $limit_part;
7154                 }
7155
7156                 print "\n";
7157
7158                 return $tags_deleted;
7159         }
7160
7161         function feedlist_init_cat($link, $cat_id, $hidden = false) {
7162                 $obj = array();
7163                 $cat_id = (int) $cat_id;
7164
7165                 if ($cat_id > 0) {
7166                         $cat_unread = ccache_find($link, $cat_id, $_SESSION["uid"], true);
7167                 } else if ($cat_id == 0 || $cat_id == -2) {
7168                         $cat_unread = getCategoryUnread($link, $cat_id);
7169                 }
7170
7171                 $obj['id'] = 'CAT:' . $cat_id;
7172                 $obj['items'] = array();
7173                 $obj['name'] = getCategoryTitle($link, $cat_id);
7174                 $obj['type'] = 'feed';
7175                 $obj['unread'] = (int) $cat_unread;
7176                 $obj['hidden'] = $hidden;
7177                 $obj['bare_id'] = $cat_id;
7178
7179                 return $obj;
7180         }
7181
7182         function feedlist_init_feed($link, $feed_id, $title = false, $unread = false, $error = '', $updated = '') {
7183                 $obj = array();
7184                 $feed_id = (int) $feed_id;
7185
7186                 if (!$title)
7187                         $title = getFeedTitle($link, $feed_id, false);
7188
7189                 if ($unread === false)
7190                         $unread = getFeedUnread($link, $feed_id, false);
7191
7192                 $obj['id'] = 'FEED:' . $feed_id;
7193                 $obj['name'] = $title;
7194                 $obj['unread'] = (int) $unread;
7195                 $obj['type'] = 'feed';
7196                 $obj['error'] = $error;
7197                 $obj['updated'] = $updated;
7198                 $obj['icon'] = getFeedIcon($feed_id);
7199                 $obj['bare_id'] = $feed_id;
7200
7201                 return $obj;
7202         }
7203
7204
7205         function fetch_twitter_rss($link, $url, $owner_uid) {
7206                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
7207                         WHERE id = $owner_uid");
7208
7209                 $access_token = json_decode(db_fetch_result($result, 0, 'twitter_oauth'), true);
7210                 $url_escaped = db_escape_string($url);
7211
7212                 if ($access_token) {
7213
7214                         $tmhOAuth = new tmhOAuth(array(
7215                                 'consumer_key'    => CONSUMER_KEY,
7216                                 'consumer_secret' => CONSUMER_SECRET,
7217                                 'user_token' => $access_token['oauth_token'],
7218                                 'user_secret' => $access_token['oauth_token_secret'],
7219                         ));
7220
7221                         $code = $tmhOAuth->request('GET', $url);
7222
7223                         if ($code == 200) {
7224
7225                                 $content = $tmhOAuth->response['response'];
7226
7227                                 define('MAGPIE_CACHE_ON', false);
7228
7229                                 $rss = new MagpieRSS($content, MAGPIE_OUTPUT_ENCODING,
7230                                         MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING );
7231
7232                                 return $rss;
7233
7234                         } else {
7235
7236                                 db_query($link, "UPDATE ttrss_feeds
7237                                         SET last_error = 'OAuth authorization failed ($code).'
7238                                         WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7239                         }
7240
7241                 } else {
7242
7243                         db_query($link, "UPDATE ttrss_feeds
7244                                 SET last_error = 'OAuth information not found.'
7245                                 WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7246
7247                         return false;
7248                 }
7249         }
7250
7251         function print_user_stylesheet($link) {
7252                 $value = get_pref($link, 'USER_STYLESHEET');
7253
7254                 if ($value) {
7255                         print "<style type=\"text/css\">";
7256                         print str_replace("<br/>", "\n", $value);
7257                         print "</style>";
7258                 }
7259
7260         }
7261
7262         function rewrite_urls($line) {
7263                 global $url_regex;
7264
7265                 $urls = null;
7266
7267                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
7268                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
7269
7270                 return $result;
7271         }
7272
7273         function filter_to_sql($filter) {
7274                 $query = "";
7275
7276                 if (DB_TYPE == "pgsql")
7277                         $reg_qpart = "~";
7278                 else
7279                         $reg_qpart = "REGEXP";
7280
7281                 switch ($filter["type"]) {
7282                         case "title":
7283                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
7284                                         $filter['reg_exp'] . "')";
7285                                 break;
7286                         case "content":
7287                                 $query = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
7288                                         $filter['reg_exp'] . "')";
7289                                 break;
7290                         case "both":
7291                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
7292                                         $filter['reg_exp'] . "') OR LOWER(" .
7293                                         "ttrss_entries.content) $reg_qpart LOWER('" . $filter['reg_exp'] . "')";
7294                                 break;
7295                         case "tag":
7296                                 $query = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
7297                                         $filter['reg_exp'] . "')";
7298                                 break;
7299                         case "link":
7300                                 $query = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
7301                                         $filter['reg_exp'] . "')";
7302                                 break;
7303                         case "date":
7304
7305                                 if ($filter["filter_param"] == "before")
7306                                         $cmp_qpart = "<";
7307                                 else
7308                                         $cmp_qpart = ">=";
7309
7310                                 $timestamp = date("Y-m-d H:N:s", strtotime($filter["reg_exp"]));
7311                                 $query = "ttrss_entries.date_entered $cmp_qpart '$timestamp'";
7312                                 break;
7313                         case "author":
7314                                 $query = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
7315                                         $filter['reg_exp'] . "')";
7316                                 break;
7317                 }
7318
7319                 if ($filter["inverse"])
7320                         $query = "NOT ($query)";
7321
7322                 if ($query) {
7323                         if (DB_TYPE == "pgsql") {
7324                                 $query = " ($query) AND ttrss_entries.date_entered > NOW() - INTERVAL '14 days'";
7325                         } else {
7326                                 $query = " ($query) AND ttrss_entries.date_entered > DATE_SUB(NOW(), INTERVAL 14 DAY)";
7327                         }
7328                         $query .= " AND ";
7329                 }
7330
7331
7332                 return $query;
7333         }
7334
7335         // Status codes:
7336         // -1  - never connected
7337         // 0   - no data received
7338         // 1   - data received successfully
7339         // 2   - did not receive valid data
7340         // >10 - server error, code + 10 (e.g. 16 means server error 6)
7341
7342         function get_linked_feeds($link, $instance_id = false) {
7343                 if ($instance_id)
7344                         $instance_qpart = "id = '$instance_id' AND ";
7345                 else
7346                         $instance_qpart = "";
7347
7348                 if (DB_TYPE == "pgsql") {
7349                         $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'";
7350                 } else {
7351                         $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)";
7352                 }
7353
7354                 $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances
7355                         WHERE $instance_qpart $date_qpart ORDER BY last_connected");
7356
7357                 while ($line = db_fetch_assoc($result)) {
7358                         $id = $line['id'];
7359
7360                         _debug("Updating: " . $line['access_url'] . " ($id)");
7361
7362                         $fetch_url = $line['access_url'] . '/public.php?op=fbexport';
7363                         $post_query = 'key=' . $line['access_key'];
7364
7365                         $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
7366
7367                         // try doing it the old way
7368                         if (!$feeds) {
7369                                 $fetch_url = $line['access_url'] . '/backend.php?op=fbexport';
7370                                 $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
7371                         }
7372
7373                         if ($feeds) {
7374                                 $feeds = json_decode($feeds, true);
7375
7376                                 if ($feeds) {
7377                                         if ($feeds['error']) {
7378                                                 $status = $feeds['error']['code'] + 10;
7379                                         } else {
7380                                                 $status = 1;
7381
7382                                                 if (count($feeds['feeds']) > 0) {
7383
7384                                                         db_query($link, "DELETE FROM ttrss_linked_feeds
7385                                                                 WHERE instance_id = '$id'");
7386
7387                                                         foreach ($feeds['feeds'] as $feed) {
7388                                                                 $feed_url = db_escape_string($feed['feed_url']);
7389                                                                 $title = db_escape_string($feed['title']);
7390                                                                 $subscribers = db_escape_string($feed['subscribers']);
7391                                                                 $site_url = db_escape_string($feed['site_url']);
7392
7393                                                                 db_query($link, "INSERT INTO ttrss_linked_feeds
7394                                                                         (feed_url, site_url, title, subscribers, instance_id, created, updated)
7395                                                                 VALUES
7396                                                                         ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())");
7397                                                         }
7398                                                 } else {
7399                                                         // received 0 feeds, this might indicate that
7400                                                         // the instance on the other hand is rebuilding feedbrowser cache
7401                                                         // we will try again later
7402
7403                                                         // TODO: maybe perform expiration based on updated here?
7404                                                 }
7405
7406                                                 _debug("Processed " . count($feeds['feeds']) . " feeds.");
7407                                         }
7408                                 } else {
7409                                         $status = 2;
7410                                 }
7411
7412                         } else {
7413                                 $status = 0;
7414                         }
7415
7416                         _debug("Status: $status");
7417
7418                         db_query($link, "UPDATE ttrss_linked_instances SET
7419                                 last_status_out = '$status', last_connected = NOW() WHERE id = '$id'");
7420
7421                 }
7422         }
7423
7424         function handle_public_request($link, $op) {
7425                 switch ($op) {
7426
7427                 case "getUnread":
7428                         $login = db_escape_string($_REQUEST["login"]);
7429                         $fresh = $_REQUEST["fresh"] == "1";
7430
7431                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
7432
7433                         if (db_num_rows($result) == 1) {
7434                                 $uid = db_fetch_result($result, 0, "id");
7435
7436                                 print getGlobalUnread($link, $uid);
7437
7438                                 if ($fresh) {
7439                                         print ";";
7440                                         print getFeedArticles($link, -3, false, true, $uid);
7441                                 }
7442
7443                         } else {
7444                                 print "-1;User not found";
7445                         }
7446
7447                 break; // getUnread
7448
7449                 case "getProfiles":
7450                         $login = db_escape_string($_REQUEST["login"]);
7451                         $password = db_escape_string($_REQUEST["password"]);
7452
7453                         if (authenticate_user($link, $login, $password)) {
7454                                 $result = db_query($link, "SELECT * FROM ttrss_settings_profiles
7455                                         WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
7456
7457                                 print "<select style='width: 100%' name='profile'>";
7458
7459                                 print "<option value='0'>" . __("Default profile") . "</option>";
7460
7461                                 while ($line = db_fetch_assoc($result)) {
7462                                         $id = $line["id"];
7463                                         $title = $line["title"];
7464
7465                                         print "<option value='$id'>$title</option>";
7466                                 }
7467
7468                                 print "</select>";
7469
7470                                 $_SESSION = array();
7471                         }
7472                 break; // getprofiles
7473
7474                 case "pubsub":
7475                         $mode = db_escape_string($_REQUEST['hub_mode']);
7476                         $feed_id = (int) db_escape_string($_REQUEST['id']);
7477                         $feed_url = db_escape_string($_REQUEST['hub_topic']);
7478
7479                         if (!PUBSUBHUBBUB_ENABLED) {
7480                                 header('HTTP/1.0 404 Not Found');
7481                                 echo "404 Not found";
7482                                 return;
7483                         }
7484
7485                         // TODO: implement hub_verifytoken checking
7486
7487                         $result = db_query($link, "SELECT feed_url FROM ttrss_feeds
7488                                 WHERE id = '$feed_id'");
7489
7490                         if (db_num_rows($result) != 0) {
7491
7492                                 $check_feed_url = db_fetch_result($result, 0, "feed_url");
7493
7494                                 if ($check_feed_url && ($check_feed_url == $feed_url || !$feed_url)) {
7495                                         if ($mode == "subscribe") {
7496
7497                                                 db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 2
7498                                                         WHERE id = '$feed_id'");
7499
7500                                                 print $_REQUEST['hub_challenge'];
7501                                                 return;
7502
7503                                         } else if ($mode == "unsubscribe") {
7504
7505                                                 db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 0
7506                                                         WHERE id = '$feed_id'");
7507
7508                                                 print $_REQUEST['hub_challenge'];
7509                                                 return;
7510
7511                                         } else if (!$mode) {
7512
7513                                                 // Received update ping, schedule feed update.
7514                                                 //update_rss_feed($link, $feed_id, true, true);
7515
7516                                                 db_query($link, "UPDATE ttrss_feeds SET
7517                                                         last_update_started = '1970-01-01',
7518                                                         last_updated = '1970-01-01' WHERE id = '$feed_id'");
7519
7520                                         }
7521                                 } else {
7522                                         header('HTTP/1.0 404 Not Found');
7523                                         echo "404 Not found";
7524                                 }
7525                         } else {
7526                                 header('HTTP/1.0 404 Not Found');
7527                                 echo "404 Not found";
7528                         }
7529
7530                 break; // pubsub
7531
7532                 case "logout":
7533                         logout_user();
7534                         header("Location: tt-rss.php");
7535                 break; // logout
7536
7537                 case "fbexport":
7538
7539                         $access_key = db_escape_string($_POST["key"]);
7540
7541                         // TODO: rate limit checking using last_connected
7542                         $result = db_query($link, "SELECT id FROM ttrss_linked_instances
7543                                 WHERE access_key = '$access_key'");
7544
7545                         if (db_num_rows($result) == 1) {
7546
7547                                 $instance_id = db_fetch_result($result, 0, "id");
7548
7549                                 $result = db_query($link, "SELECT feed_url, site_url, title, subscribers
7550                                         FROM ttrss_feedbrowser_cache ORDER BY subscribers DESC LIMIT 100");
7551
7552                                 $feeds = array();
7553
7554                                 while ($line = db_fetch_assoc($result)) {
7555                                         array_push($feeds, $line);
7556                                 }
7557
7558                                 db_query($link, "UPDATE ttrss_linked_instances SET
7559                                         last_status_in = 1 WHERE id = '$instance_id'");
7560
7561                                 print json_encode(array("feeds" => $feeds));
7562                         } else {
7563                                 print json_encode(array("error" => array("code" => 6)));
7564                         }
7565                 break; // fbexport
7566
7567                 case "share":
7568                         $uuid = db_escape_string($_REQUEST["key"]);
7569
7570                         $result = db_query($link, "SELECT ref_id, owner_uid FROM ttrss_user_entries WHERE
7571                                 uuid = '$uuid'");
7572
7573                         if (db_num_rows($result) != 0) {
7574                                 header("Content-Type: text/html");
7575
7576                                 $id = db_fetch_result($result, 0, "ref_id");
7577                                 $owner_uid = db_fetch_result($result, 0, "owner_uid");
7578
7579                                 $_SESSION["uid"] = $owner_uid;
7580                                 $article = format_article($link, $id, false, true);
7581                                 $_SESSION["uid"] = "";
7582
7583                                 print_r($article['content']);
7584
7585                         } else {
7586                                 print "Article not found.";
7587                         }
7588
7589                         break;
7590
7591                 case "rss":
7592                         $feed = db_escape_string($_REQUEST["id"]);
7593                         $key = db_escape_string($_REQUEST["key"]);
7594                         $is_cat = $_REQUEST["is_cat"] != false;
7595                         $limit = (int)db_escape_string($_REQUEST["limit"]);
7596
7597                         $search = db_escape_string($_REQUEST["q"]);
7598                         $match_on = db_escape_string($_REQUEST["m"]);
7599                         $search_mode = db_escape_string($_REQUEST["smode"]);
7600                         $view_mode = db_escape_string($_REQUEST["view-mode"]);
7601
7602                         if (SINGLE_USER_MODE) {
7603                                 authenticate_user($link, "admin", null);
7604                         }
7605
7606                         $owner_id = false;
7607
7608                         if ($key) {
7609                                 $result = db_query($link, "SELECT owner_uid FROM
7610                                         ttrss_access_keys WHERE access_key = '$key' AND feed_id = '$feed'");
7611
7612                                 if (db_num_rows($result) == 1)
7613                                         $owner_id = db_fetch_result($result, 0, "owner_uid");
7614                         }
7615
7616                         if ($owner_id) {
7617                                 $_SESSION['uid'] = $owner_id;
7618
7619                                 generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
7620                                         $search, $search_mode, $match_on, $view_mode);
7621                         } else {
7622                                 header('HTTP/1.1 403 Forbidden');
7623                         }
7624                 break; // rss
7625
7626
7627                 case "globalUpdateFeeds":
7628                         // Update all feeds needing a update.
7629                         update_daemon_common($link, 0, true, true);
7630                 break; // globalUpdateFeeds
7631
7632
7633                 default:
7634                         header("Content-Type: text/plain");
7635                         print json_encode(array("error" => array("code" => 7)));
7636                 break; // fallback
7637
7638                 }
7639         }
7640 ?>