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         $config->set('Attr.EnableID', true);
 123         @$config->set('Cache', 'SerializerPath', CACHE_DIR . "/htmlpurifier");
 124
 125         $purifier = new HTMLPurifier($config);
 126
 127         $tz_offset = -1;
 128         $utc_tz = new DateTimeZone('UTC');
 129         $schema_version = false;
 130
 131         /**
 132          * Print a timestamped debug message.
 133          *
 134          * @param string $msg The debug message.
 135          * @return void
 136          */
 137         function _debug($msg) {
 138                 $ts = strftime("%H:%M:%S", time());
 139                 if (function_exists('posix_getpid')) {
 140                         $ts = "$ts/" . posix_getpid();
 141                 }
 142                 print "[$ts] $msg\n";
 143         } // function _debug
 144
 145         /**
 146          * Purge a feed old posts.
 147          *
 148          * @param mixed $link A database connection.
 149          * @param mixed $feed_id The id of the purged feed.
 150          * @param mixed $purge_interval Olderness of purged posts.
 151          * @param boolean $debug Set to True to enable the debug. False by default.
 152          * @access public
 153          * @return void
 154          */
 155         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 156
 157                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
 158
 159                 $rows = -1;
 160
 161                 $result = db_query($link,
 162                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 163
 164                 $owner_uid = false;
 165
 166                 if (db_num_rows($result) == 1) {
 167                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 168                 }
 169
 170                 if ($purge_interval == -1 || !$purge_interval) {
 171                         if ($owner_uid) {
 172                                 ccache_update($link, $feed_id, $owner_uid);
 173                         }
 174                         return;
 175                 }
 176
 177                 if (!$owner_uid) return;
 178
 179                 if (FORCE_ARTICLE_PURGE == 0) {
 180                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
 181                                 $owner_uid, false);
 182                 } else {
 183                         $purge_unread = true;
 184                         $purge_interval = FORCE_ARTICLE_PURGE;
 185                 }
 186
 187                 if (!$purge_unread) $query_limit = " unread = false AND ";
 188
 189                 if (DB_TYPE == "pgsql") {
 190                         $pg_version = get_pgsql_version($link);
 191
 192                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 193
 194                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 195                                         ttrss_entries.id = ref_id AND
 196                                         marked = false AND
 197                                         feed_id = '$feed_id' AND
 198                                         $query_limit
 199                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 200
 201                         } else {
 202
 203                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
 204                                         USING ttrss_entries
 205                                         WHERE ttrss_entries.id = ref_id AND
 206                                         marked = false AND
 207                                         feed_id = '$feed_id' AND
 208                                         $query_limit
 209                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 210                         }
 211
 212                         $rows = pg_affected_rows($result);
 213
 214                 } else {
 215
 216 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 217                                 marked = false AND feed_id = '$feed_id' AND
 218                                 (SELECT date_updated FROM ttrss_entries WHERE
 219                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 220
 221                         $result = db_query($link, "DELETE FROM ttrss_user_entries
 222                                 USING ttrss_user_entries, ttrss_entries
 223                                 WHERE ttrss_entries.id = ref_id AND
 224                                 marked = false AND
 225                                 feed_id = '$feed_id' AND
 226                                 $query_limit
 227                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 228
 229                         $rows = mysql_affected_rows($link);
 230
 231                 }
 232
 233                 ccache_update($link, $feed_id, $owner_uid);
 234
 235                 if ($debug) {
 236                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 237                 }
 238         } // function purge_feed
 239
 240         /**
 241          * Purge old posts from old feeds. Not used anymore, purging is done after feed update.
 242          *
 243          * @param mixed $link A database connection
 244          * @param boolean $do_output Set to true to enable printed output, false by default.
 245          * @param integer $limit The maximal number of removed posts.
 246          * @access public
 247          * @return void
 248          */
 249         /* function global_purge_old_posts($link, $do_output = false, $limit = false) {
 250
 251                 $random_qpart = sql_random_function();
 252
 253                 if ($limit) {
 254                         $limit_qpart = "LIMIT $limit";
 255                 } else {
 256                         $limit_qpart = "";
 257                 }
 258
 259                 $result = db_query($link,
 260                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds
 261                                 ORDER BY $random_qpart $limit_qpart");
 262
 263                 while ($line = db_fetch_assoc($result)) {
 264
 265                         $feed_id = $line["id"];
 266                         $purge_interval = $line["purge_interval"];
 267                         $owner_uid = $line["owner_uid"];
 268
 269                         if ($purge_interval == 0) {
 270
 271                                 $tmp_result = db_query($link,
 272                                         "SELECT value FROM ttrss_user_prefs WHERE
 273                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
 274
 275                                 if (db_num_rows($tmp_result) != 0) {
 276                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
 277                                 }
 278                         }
 279
 280                         if ($do_output) {
 281 //                              print "Feed $feed_id: purge interval = $purge_interval\n";
 282                         }
 283
 284                         if ($purge_interval > 0 || FORCE_ARTICLE_PURGE) {
 285                                 purge_feed($link, $feed_id, $purge_interval, $do_output);
 286                         }
 287                 }
 288
 289                 purge_orphans($link, $do_output);
 290
 291         } // function global_purge_old_posts */
 292
 293         function feed_purge_interval($link, $feed_id) {
 294
 295                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
 296                         WHERE id = '$feed_id'");
 297
 298                 if (db_num_rows($result) == 1) {
 299                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 300                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 301
 302                         if ($purge_interval == 0) $purge_interval = get_pref($link,
 303                                 'PURGE_OLD_DAYS', $owner_uid);
 304
 305                         return $purge_interval;
 306
 307                 } else {
 308                         return -1;
 309                 }
 310         }
 311
 312         function purge_old_posts($link) {
 313
 314                 $user_id = $_SESSION["uid"];
 315
 316                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
 317                         WHERE owner_uid = '$user_id'");
 318
 319                 while ($line = db_fetch_assoc($result)) {
 320
 321                         $feed_id = $line["id"];
 322                         $purge_interval = $line["purge_interval"];
 323
 324                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
 325
 326                         if ($purge_interval > 0) {
 327                                 purge_feed($link, $feed_id, $purge_interval);
 328                         }
 329                 }
 330
 331                 purge_orphans($link);
 332         }
 333
 334         function purge_orphans($link, $do_output = false) {
 335
 336                 // purge orphaned posts in main content table
 337                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
 338                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 339
 340                 if ($do_output) {
 341                         $rows = db_affected_rows($link, $result);
 342                         _debug("Purged $rows orphaned posts.");
 343                 }
 344         }
 345
 346         function get_feed_update_interval($link, $feed_id) {
 347                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
 348                         ttrss_feeds WHERE id = '$feed_id'");
 349
 350                 if (db_num_rows($result) == 1) {
 351                         $update_interval = db_fetch_result($result, 0, "update_interval");
 352                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 353
 354                         if ($update_interval != 0) {
 355                                 return $update_interval;
 356                         } else {
 357                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 358                         }
 359
 360                 } else {
 361                         return -1;
 362                 }
 363         }
 364
 365         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false) {
 366                 $login = urlencode($login);
 367                 $pass = urlencode($pass);
 368
 369                 if (function_exists('curl_init') && !ini_get("open_basedir")) {
 370                         $ch = curl_init($url);
 371
 372                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
 373                         curl_setopt($ch, CURLOPT_TIMEOUT, 45);
 374                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 375                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 376                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 377                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 378                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 379                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 380                         curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
 381
 382                         if ($post_query) {
 383                                 curl_setopt($ch, CURLOPT_POST, true);
 384                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 385                         }
 386
 387                         if ($login && $pass)
 388                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 389
 390                         $contents = @curl_exec($ch);
 391                         if ($contents === false) {
 392                                 curl_close($ch);
 393                                 return false;
 394                         }
 395
 396                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 397                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 398                         curl_close($ch);
 399
 400                         if ($http_code != 200 || $type && strpos($content_type, "$type") === false) {
 401                                 return false;
 402                         }
 403
 404                         return $contents;
 405                 } else {
 406                         if ($login && $pass ){
 407                                 $url_parts = array();
 408
 409                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 410
 411                                 if ($url_parts[1] && $url_parts[2]) {
 412                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 413                                 }
 414                         }
 415
 416                         return @file_get_contents($url);
 417                 }
 418
 419         }
 420
 421         /**
 422          * Try to determine the favicon URL for a feed.
 423          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 424          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 425          *
 426          * @param string $url A feed or page URL
 427          * @access public
 428          * @return mixed The favicon URL, or false if none was found.
 429          */
 430         function get_favicon_url($url) {
 431
 432                 $favicon_url = false;
 433
 434                 if ($html = @fetch_file_contents($url)) {
 435
 436                         libxml_use_internal_errors(true);
 437
 438                         $doc = new DOMDocument();
 439                         $doc->loadHTML($html);
 440                         $xpath = new DOMXPath($doc);
 441
 442                         $base = $xpath->query('/html/head/base');
 443                         foreach ($base as $b) {
 444                                 $url = $b->getAttribute("href");
 445                                 break;
 446                         }
 447
 448                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 449                         if (count($entries) > 0) {
 450                                 foreach ($entries as $entry) {
 451                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 452                                         break;
 453                                 }
 454                         }
 455                 }
 456
 457                 if (!$favicon_url)
 458                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 459
 460                 return $favicon_url;
 461         } // function get_favicon_url
 462
 463         function check_feed_favicon($site_url, $feed, $link) {
 464                 $favicon_url = get_favicon_url($site_url);
 465
 466 #               print "FAVICON [$site_url]: $favicon_url\n";
 467
 468                 $icon_file = ICONS_DIR . "/$feed.ico";
 469
 470                 if ($favicon_url && !file_exists($icon_file)) {
 471                         $contents = fetch_file_contents($favicon_url, "image");
 472                         if ($contents) {
 473                                 $fp = fopen($icon_file, "w");
 474
 475                                 if ($fp) {
 476                                         fwrite($fp, $contents);
 477                                         fclose($fp);
 478                                         chmod($icon_file, 0644);
 479                                 }
 480                         }
 481                 }
 482         }
 483
 484         function update_rss_feed($link, $feed, $ignore_daemon = false, $no_cache = false) {
 485
 486                 global $memcache;
 487
 488                 /* Update all feeds with the same URL to utilize memcache */
 489
 490                 if ($memcache) {
 491                         $result = db_query($link, "SELECT f1.id
 492                                 FROM ttrss_feeds AS f1, ttrss_feeds AS f2
 493                                 WHERE   f2.feed_url = f1.feed_url AND f2.id = '$feed'");
 494
 495                         while ($line = db_fetch_assoc($result)) {
 496                                 update_rss_feed_real($link, $line["id"], $ignore_daemon, $no_cache);
 497                         }
 498                 } else {
 499                         update_rss_feed_real($link, $feed, $ignore_daemon, $no_cache);
 500                 }
 501         }
 502
 503         function update_rss_feed_real($link, $feed, $ignore_daemon = false, $no_cache = false) {
 504
 505                 global $memcache;
 506
 507                 $debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
 508
 509                 if (!$_REQUEST["daemon"] && !$ignore_daemon) {
 510                         return false;
 511                 }
 512
 513                 if ($debug_enabled) {
 514                         _debug("update_rss_feed: start");
 515                 }
 516
 517                 if (!$ignore_daemon) {
 518
 519                         if (DB_TYPE == "pgsql") {
 520                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
 521                                 } else {
 522                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
 523                                 }
 524
 525                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 526                                 auth_pass,cache_images,update_method
 527                                 FROM ttrss_feeds WHERE id = '$feed' AND $updstart_thresh_qpart");
 528
 529                 } else {
 530
 531                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 532                                 feed_url,auth_pass,cache_images,update_method,last_updated,
 533                                 mark_unread_on_update, owner_uid, update_on_checksum_change,
 534                                 pubsub_state
 535                                 FROM ttrss_feeds WHERE id = '$feed'");
 536
 537                 }
 538
 539                 if (db_num_rows($result) == 0) {
 540                         if ($debug_enabled) {
 541                                 _debug("update_rss_feed: feed $feed NOT FOUND/SKIPPED");
 542                         }
 543                         return false;
 544                 }
 545
 546                 $update_method = db_fetch_result($result, 0, "update_method");
 547                 $last_updated = db_fetch_result($result, 0, "last_updated");
 548                 $owner_uid = db_fetch_result($result, 0, "owner_uid");
 549                 $mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
 550                         0, "mark_unread_on_update"));
 551                 $update_on_checksum_change = sql_bool_to_bool(db_fetch_result($result,
 552                         0, "update_on_checksum_change"));
 553                 $pubsub_state = db_fetch_result($result, 0, "pubsub_state");
 554
 555                 db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
 556                         WHERE id = '$feed'");
 557
 558                 $auth_login = db_fetch_result($result, 0, "auth_login");
 559                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
 560
 561                 if ($update_method == 0)
 562                         $update_method = DEFAULT_UPDATE_METHOD + 1;
 563
 564                 // 1 - Magpie
 565                 // 2 - SimplePie
 566                 // 3 - Twitter OAuth
 567
 568                 if ($update_method == 2)
 569                         $use_simplepie = true;
 570                 else
 571                         $use_simplepie = false;
 572
 573                 if ($debug_enabled) {
 574                         _debug("update method: $update_method (feed setting: $update_method) (use simplepie: $use_simplepie)\n");
 575                 }
 576
 577                 if ($update_method == 1) {
 578                         $auth_login = urlencode($auth_login);
 579                         $auth_pass = urlencode($auth_pass);
 580                 }
 581
 582                 $update_interval = db_fetch_result($result, 0, "update_interval");
 583                 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
 584                 $fetch_url = db_fetch_result($result, 0, "feed_url");
 585
 586                 if ($update_interval < 0) { return false; }
 587
 588                 $feed = db_escape_string($feed);
 589
 590                 if ($auth_login && $auth_pass ){
 591                         $url_parts = array();
 592                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 593
 594                         if ($url_parts[1] && $url_parts[2]) {
 595                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 596                         }
 597
 598                 }
 599
 600                 if ($debug_enabled) {
 601                         _debug("update_rss_feed: fetching [$fetch_url]...");
 602                 }
 603
 604                 $obj_id = md5("FDATA:$use_simplepie:$fetch_url");
 605
 606                 if ($memcache && $obj = $memcache->get($obj_id)) {
 607
 608                         if ($debug_enabled) {
 609                                 _debug("update_rss_feed: data found in memcache.");
 610                         }
 611
 612                         $rss = $obj;
 613
 614                 } else {
 615
 616                         if ($update_method == 3) {
 617                                 $rss = fetch_twitter_rss($link, $fetch_url, $owner_uid);
 618                         } else if ($update_method == 1) {
 619
 620                                 define('MAGPIE_CACHE_AGE', get_feed_update_interval($link, $feed) * 60);
 621                                 define('MAGPIE_CACHE_ON', !$no_cache);
 622                                 define('MAGPIE_FETCH_TIME_OUT', 60);
 623                                 define('MAGPIE_CACHE_DIR', CACHE_DIR . "/magpie");
 624
 625                                 $rss = @fetch_rss($fetch_url);
 626                         } else {
 627                                 $simplepie_cache_dir = CACHE_DIR . "/simplepie";
 628
 629                                 if (!is_dir($simplepie_cache_dir)) {
 630                                         mkdir($simplepie_cache_dir);
 631                                 }
 632
 633                                 $rss = new SimplePie();
 634                                 $rss->set_useragent(SELF_USER_AGENT);
 635         #                       $rss->set_timeout(10);
 636                                 $rss->set_feed_url($fetch_url);
 637                                 $rss->set_output_encoding('UTF-8');
 638
 639                                 if (SIMPLEPIE_CACHE_IMAGES && $cache_images) {
 640
 641                                         if ($debug_enabled) {
 642                                                 _debug("enabling image cache");
 643                                         }
 644
 645                                         $rss->set_image_handler("image.php", 'i');
 646                                 }
 647
 648                                 if ($debug_enabled) {
 649                                         _debug("feed update interval (sec): " .
 650                                                 get_feed_update_interval($link, $feed)*60);
 651                                 }
 652
 653                                 $rss->enable_cache(!$no_cache);
 654
 655                                 if (!$no_cache) {
 656                                         $rss->set_cache_location($simplepie_cache_dir);
 657                                         $rss->set_cache_duration(get_feed_update_interval($link, $feed) * 60);
 658                                 }
 659
 660                                 $rss->init();
 661                         }
 662
 663                         if ($memcache && $rss) $memcache->add($obj_id, $rss, 0, 300);
 664                 }
 665
 666 //              print_r($rss);
 667
 668                 if ($debug_enabled) {
 669                         _debug("update_rss_feed: fetch done, parsing...");
 670                 }
 671
 672                 $feed = db_escape_string($feed);
 673
 674                 if ($update_method == 2) {
 675                         $fetch_ok = !$rss->error();
 676                 } else {
 677                         $fetch_ok = !!$rss;
 678                 }
 679
 680                 if ($fetch_ok) {
 681
 682                         if ($debug_enabled) {
 683                                 _debug("update_rss_feed: processing feed data...");
 684                         }
 685
 686 //                      db_query($link, "BEGIN");
 687
 688                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 689                                 FROM ttrss_feeds WHERE id = '$feed'");
 690
 691                         $registered_title = db_fetch_result($result, 0, "title");
 692                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 693                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 694
 695                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 696
 697                         if ($use_simplepie) {
 698                                 $site_url = $rss->get_link();
 699                         } else {
 700                                 $site_url = $rss->channel["link"];
 701                         }
 702
 703                         $site_url = rewrite_relative_url($fetch_url, $site_url);
 704
 705                         if ($debug_enabled) {
 706                                 _debug("update_rss_feed: checking favicon...");
 707                         }
 708
 709                         check_feed_favicon($site_url, $feed, $link);
 710
 711                         if (!$registered_title || $registered_title == "[Unknown]") {
 712
 713                                 if ($use_simplepie) {
 714                                         $feed_title = db_escape_string($rss->get_title());
 715                                 } else {
 716                                         $feed_title = db_escape_string($rss->channel["title"]);
 717                                 }
 718
 719                                 if ($debug_enabled) {
 720                                         _debug("update_rss_feed: registering title: $feed_title");
 721                                 }
 722
 723                                 db_query($link, "UPDATE ttrss_feeds SET
 724                                         title = '$feed_title' WHERE id = '$feed'");
 725                         }
 726
 727                         // weird, weird Magpie
 728                         if (!$use_simplepie) {
 729                                 if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 730                         }
 731
 732                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 733                                 db_query($link, "UPDATE ttrss_feeds SET
 734                                         site_url = '$site_url' WHERE id = '$feed'");
 735                         }
 736
 737 //                      print "I: " . $rss->channel["image"]["url"];
 738
 739                         if (!$use_simplepie) {
 740                                 $icon_url = db_escape_string($rss->image["url"]);
 741                         } else {
 742                                 $icon_url = db_escape_string($rss->get_image_url());
 743                         }
 744
 745                         $icon_url = substr($icon_url, 0, 250);
 746
 747                         if ($icon_url && $orig_icon_url != $icon_url) {
 748                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 749                         }
 750
 751                         if ($debug_enabled) {
 752                                 _debug("update_rss_feed: loading filters...");
 753                         }
 754
 755                         $filters = load_filters($link, $feed, $owner_uid);
 756
 757 //                      if ($debug_enabled) {
 758 //                              print_r($filters);
 759 //                      }
 760
 761                         if ($use_simplepie) {
 762                                 $iterator = $rss->get_items();
 763                         } else {
 764                                 $iterator = $rss->items;
 765                                 if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
 766                                 if (!$iterator || !is_array($iterator)) $iterator = $rss;
 767                         }
 768
 769                         if (!is_array($iterator)) {
 770                                 /* db_query($link, "UPDATE ttrss_feeds
 771                                         SET last_error = 'Parse error: can\'t find any articles.'
 772                                         WHERE id = '$feed'"); */
 773
 774                                 // clear any errors and mark feed as updated if fetched okay
 775                                 // even if it's blank
 776
 777                                 if ($debug_enabled) {
 778                                         _debug("update_rss_feed: entry iterator is not an array, no articles?");
 779                                 }
 780
 781                                 db_query($link, "UPDATE ttrss_feeds
 782                                         SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 783
 784                                 return; // no articles
 785                         }
 786
 787                         if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
 788
 789                                 if ($debug_enabled) _debug("update_rss_feed: checking for PUSH hub...");
 790
 791                                 $feed_hub_url = false;
 792                                 if ($use_simplepie) {
 793                                         $links = $rss->get_links('hub');
 794
 795                                         if ($links && is_array($links)) {
 796                                                 foreach ($links as $l) {
 797                                                         $feed_hub_url = $l;
 798                                                         break;
 799                                                 }
 800                                         }
 801
 802                                 } else {
 803                                         $atom = $rss->channel['atom'];
 804
 805                                         if ($atom) {
 806                                                 if ($atom['link@rel'] == 'hub') {
 807                                                         $feed_hub_url = $atom['link@href'];
 808                                                 }
 809
 810                                                 if (!$feed_hub_url && $atom['link#'] > 1) {
 811                                                         for ($i = 2; $i <= $atom['link#']; $i++) {
 812                                                                 if ($atom["link#$i@rel"] == 'hub') {
 813                                                                         $feed_hub_url = $atom["link#$i@href"];
 814                                                                         break;
 815                                                                 }
 816                                                         }
 817                                                 }
 818                                         } else {
 819                                                 $feed_hub_url = $rss->channel['link_hub'];
 820                                         }
 821                                 }
 822
 823                                 if ($debug_enabled) _debug("update_rss_feed: feed hub url: $feed_hub_url");
 824
 825                                 if ($feed_hub_url && function_exists('curl_init') &&
 826                                         !ini_get("open_basedir")) {
 827
 828                                         $callback_url = get_self_url_prefix() .
 829                                                 "/backend.php?op=pubsub&id=$feed";
 830
 831                                         $s = new Subscriber($feed_hub_url, $callback_url);
 832
 833                                         $rc = $s->subscribe($fetch_url);
 834
 835                                         if ($debug_enabled)
 836                                                 _debug("update_rss_feed: feed hub url found, subscribe request sent.");
 837
 838                                         db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 1
 839                                                 WHERE id = '$feed'");
 840                                 }
 841                         }
 842
 843                         if ($debug_enabled) {
 844                                 _debug("update_rss_feed: processing articles...");
 845                         }
 846
 847                         foreach ($iterator as $item) {
 848
 849                                 if ($_REQUEST['xdebug'] == 2) {
 850                                         print_r($item);
 851                                 }
 852
 853                                 if ($use_simplepie) {
 854                                         $entry_guid = $item->get_id();
 855                                         if (!$entry_guid) $entry_guid = $item->get_link();
 856                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
 857
 858                                 } else {
 859
 860                                         $entry_guid = $item["id"];
 861
 862                                         if (!$entry_guid) $entry_guid = $item["guid"];
 863                                         if (!$entry_guid) $entry_guid = $item["about"];
 864                                         if (!$entry_guid) $entry_guid = $item["link"];
 865                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
 866                                 }
 867
 868                                 if ($debug_enabled) {
 869                                         _debug("update_rss_feed: guid $entry_guid");
 870                                 }
 871
 872                                 if (!$entry_guid) continue;
 873
 874                                 $entry_timestamp = "";
 875
 876                                 if ($use_simplepie) {
 877                                         $entry_timestamp = strtotime($item->get_date());
 878                                 } else {
 879                                         $rss_2_date = $item['pubdate'];
 880                                         $rss_1_date = $item['dc']['date'];
 881                                         $atom_date = $item['issued'];
 882                                         if (!$atom_date) $atom_date = $item['updated'];
 883
 884                                         if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 885                                         if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 886                                         if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 887
 888                                 }
 889
 890                                 if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
 891                                         $entry_timestamp = time();
 892                                         $no_orig_date = 'true';
 893                                 } else {
 894                                         $no_orig_date = 'false';
 895                                 }
 896
 897                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 898
 899                                 if ($debug_enabled) {
 900                                         _debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
 901                                 }
 902
 903                                 if ($use_simplepie) {
 904                                         $entry_title = $item->get_title();
 905                                 } else {
 906                                         $entry_title = trim(strip_tags($item["title"]));
 907                                 }
 908
 909                                 if ($use_simplepie) {
 910                                         $entry_link = $item->get_link();
 911                                 } else {
 912                                         // strange Magpie workaround
 913                                         $entry_link = $item["link_"];
 914                                         if (!$entry_link) $entry_link = $item["link"];
 915                                 }
 916
 917                                 $entry_link = rewrite_relative_url($site_url, $entry_link);
 918
 919                                 if ($debug_enabled) {
 920                                         _debug("update_rss_feed: title $entry_title");
 921                                         _debug("update_rss_feed: link $entry_link");
 922                                 }
 923
 924                                 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
 925
 926                                 $entry_link = strip_tags($entry_link);
 927
 928                                 if ($use_simplepie) {
 929                                         $entry_content = $item->get_content();
 930                                         if (!$entry_content) $entry_content = $item->get_description();
 931                                 } else {
 932                                         $entry_content = $item["content:escaped"];
 933
 934                                         if (!$entry_content) $entry_content = $item["content:encoded"];
 935                                         if (!$entry_content) $entry_content = $item["content"]["encoded"];
 936                                         if (!$entry_content) $entry_content = $item["content"];
 937
 938                                         // Magpie bugs are getting ridiculous
 939                                         if (trim($entry_content) == "Array") $entry_content = false;
 940
 941                                         if (!$entry_content) $entry_content = $item["atom_content"];
 942                                         if (!$entry_content) $entry_content = $item["summary"];
 943
 944                                         if (!$entry_content ||
 945                                                 strlen($entry_content) < strlen($item["description"])) {
 946                                                         $entry_content = $item["description"];
 947                                         };
 948
 949                                         // WTF
 950                                         if (is_array($entry_content)) {
 951                                                 $entry_content = $entry_content["encoded"];
 952                                                 if (!$entry_content) $entry_content = $entry_content["escaped"];
 953                                         }
 954                                 }
 955
 956                                 if ($_REQUEST["xdebug"] == 2) {
 957                                         print "update_rss_feed: content: ";
 958                                         print_r(htmlspecialchars($entry_content));
 959                                 }
 960
 961                                 $entry_content_unescaped = $entry_content;
 962
 963                                 if ($use_simplepie) {
 964                                         $entry_comments = strip_tags($item->data["comments"]);
 965                                         if ($item->get_author()) {
 966                                                 $entry_author_item = $item->get_author();
 967                                                 $entry_author = $entry_author_item->get_name();
 968                                                 if (!$entry_author) $entry_author = $entry_author_item->get_email();
 969
 970                                                 $entry_author = db_escape_string($entry_author);
 971                                         }
 972                                 } else {
 973                                         $entry_comments = strip_tags($item["comments"]);
 974
 975                                         $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
 976
 977                                         if ($item['author']) {
 978
 979                                                 if (is_array($item['author'])) {
 980
 981                                                         if (!$entry_author) {
 982                                                                 $entry_author = db_escape_string(strip_tags($item['author']['name']));
 983                                                         }
 984
 985                                                         if (!$entry_author) {
 986                                                                 $entry_author = db_escape_string(strip_tags($item['author']['email']));
 987                                                         }
 988                                                 }
 989
 990                                                 if (!$entry_author) {
 991                                                         $entry_author = db_escape_string(strip_tags($item['author']));
 992                                                 }
 993                                         }
 994                                 }
 995
 996                                 if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
 997
 998                                 $entry_guid = db_escape_string(strip_tags($entry_guid));
 999                                 $entry_guid = mb_substr($entry_guid, 0, 250);
1000
1001                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
1002                                         WHERE guid = '$entry_guid'");
1003
1004                                 $entry_content = db_escape_string($entry_content, false);
1005
1006                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
1007
1008                                 $entry_title = db_escape_string($entry_title);
1009                                 $entry_link = db_escape_string($entry_link);
1010                                 $entry_comments = mb_substr(db_escape_string($entry_comments), 0, 250);
1011                                 $entry_author = mb_substr($entry_author, 0, 250);
1012
1013                                 if ($use_simplepie) {
1014                                         $num_comments = 0; #FIXME#
1015                                 } else {
1016                                         $num_comments = db_escape_string($item["slash"]["comments"]);
1017                                 }
1018
1019                                 if (!$num_comments) $num_comments = 0;
1020
1021                                 if ($debug_enabled) {
1022                                         _debug("update_rss_feed: looking for tags [1]...");
1023                                 }
1024
1025                                 // parse <category> entries into tags
1026
1027                                 $additional_tags = array();
1028
1029                                 if ($use_simplepie) {
1030
1031                                         $additional_tags_src = $item->get_categories();
1032
1033                                         if (is_array($additional_tags_src)) {
1034                                                 foreach ($additional_tags_src as $tobj) {
1035                                                         array_push($additional_tags, $tobj->get_term());
1036                                                 }
1037                                         }
1038
1039                                         if ($debug_enabled) {
1040                                                 _debug("update_rss_feed: category tags:");
1041                                                 print_r($additional_tags);
1042                                         }
1043
1044                                 } else {
1045
1046                                         $t_ctr = $item['category#'];
1047
1048                                         if ($t_ctr == 0) {
1049                                                 $additional_tags = array();
1050                                         } else if ($t_ctr > 0) {
1051                                                 $additional_tags = array($item['category']);
1052
1053                                                 if ($item['category@term']) {
1054                                                         array_push($additional_tags, $item['category@term']);
1055                                                 }
1056
1057                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
1058                                                         if ($item["category#$i"]) {
1059                                                                 array_push($additional_tags, $item["category#$i"]);
1060                                                         }
1061
1062                                                         if ($item["category#$i@term"]) {
1063                                                                 array_push($additional_tags, $item["category#$i@term"]);
1064                                                         }
1065                                                 }
1066                                         }
1067
1068                                         // parse <dc:subject> elements
1069
1070                                         $t_ctr = $item['dc']['subject#'];
1071
1072                                         if ($t_ctr > 0) {
1073                                                 array_push($additional_tags, $item['dc']['subject']);
1074
1075                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
1076                                                         if ($item['dc']["subject#$i"]) {
1077                                                                 array_push($additional_tags, $item['dc']["subject#$i"]);
1078                                                         }
1079                                                 }
1080                                         }
1081                                 }
1082
1083                                 if ($debug_enabled) {
1084                                         _debug("update_rss_feed: looking for tags [2]...");
1085                                 }
1086
1087                                 /* taaaags */
1088                                 // <a href="..." rel="tag">Xorg</a>, //
1089
1090                                 $entry_tags = null;
1091
1092                                 preg_match_all("/<a.*?rel=['\"]tag['\"].*?\>([^<]+)<\/a>/i",
1093                                         $entry_content_unescaped, $entry_tags);
1094
1095                                 $entry_tags = $entry_tags[1];
1096
1097                                 $entry_tags = array_merge($entry_tags, $additional_tags);
1098                                 $entry_tags = array_unique($entry_tags);
1099
1100                                 for ($i = 0; $i < count($entry_tags); $i++)
1101                                         $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
1102
1103                                 if ($debug_enabled) {
1104                                         _debug("update_rss_feed: unfiltered tags found:");
1105                                         print_r($entry_tags);
1106                                 }
1107
1108                                 # sanitize content
1109
1110                                 $entry_content = sanitize_article_content($entry_content);
1111                                 $entry_title = sanitize_article_content($entry_title);
1112
1113                                 if ($debug_enabled) {
1114                                         _debug("update_rss_feed: done collecting data [TITLE:$entry_title]");
1115                                 }
1116
1117                                 db_query($link, "BEGIN");
1118
1119                                 if (db_num_rows($result) == 0) {
1120
1121                                         if ($debug_enabled) {
1122                                                 _debug("update_rss_feed: base guid not found");
1123                                         }
1124
1125                                         // base post entry does not exist, create it
1126
1127                                         $result = db_query($link,
1128                                                 "INSERT INTO ttrss_entries
1129                                                         (title,
1130                                                         guid,
1131                                                         link,
1132                                                         updated,
1133                                                         content,
1134                                                         content_hash,
1135                                                         no_orig_date,
1136                                                         date_updated,
1137                                                         date_entered,
1138                                                         comments,
1139                                                         num_comments,
1140                                                         author)
1141                                                 VALUES
1142                                                         ('$entry_title',
1143                                                         '$entry_guid',
1144                                                         '$entry_link',
1145                                                         '$entry_timestamp_fmt',
1146                                                         '$entry_content',
1147                                                         '$content_hash',
1148                                                         $no_orig_date,
1149                                                         NOW(),
1150                                                         NOW(),
1151                                                         '$entry_comments',
1152                                                         '$num_comments',
1153                                                         '$entry_author')");
1154                                 } else {
1155                                         // we keep encountering the entry in feeds, so we need to
1156                                         // update date_updated column so that we don't get horrible
1157                                         // dupes when the entry gets purged and reinserted again e.g.
1158                                         // in the case of SLOW SLOW OMG SLOW updating feeds
1159
1160                                         $base_entry_id = db_fetch_result($result, 0, "id");
1161
1162                                         db_query($link, "UPDATE ttrss_entries SET date_updated = NOW()
1163                                                 WHERE id = '$base_entry_id'");
1164                                 }
1165
1166                                 // now it should exist, if not - bad luck then
1167
1168                                 $result = db_query($link, "SELECT
1169                                                 id,content_hash,no_orig_date,title,
1170                                                 ".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
1171                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
1172                                                 num_comments
1173                                         FROM
1174                                                 ttrss_entries
1175                                         WHERE guid = '$entry_guid'");
1176
1177                                 $entry_ref_id = 0;
1178                                 $entry_int_id = 0;
1179
1180                                 if (db_num_rows($result) == 1) {
1181
1182                                         if ($debug_enabled) {
1183                                                 _debug("update_rss_feed: base guid found, checking for user record");
1184                                         }
1185
1186                                         // this will be used below in update handler
1187                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
1188                                         $orig_title = db_fetch_result($result, 0, "title");
1189                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
1190                                         $orig_date_updated = strtotime(db_fetch_result($result,
1191                                                 0, "date_updated"));
1192
1193                                         $ref_id = db_fetch_result($result, 0, "id");
1194                                         $entry_ref_id = $ref_id;
1195
1196                                         // check for user post link to main table
1197
1198                                         // do we allow duplicate posts with same GUID in different feeds?
1199                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
1200                                                 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
1201                                         } else {
1202                                                 $dupcheck_qpart = "";
1203                                         }
1204
1205                                         /* Collect article tags here so we could filter by them: */
1206
1207                                         $article_filters = get_article_filters($filters, $entry_title,
1208                                                 $entry_content, $entry_link, $entry_timestamp, $entry_author,
1209                                                 $entry_tags);
1210
1211                                         if ($debug_enabled) {
1212                                                 _debug("update_rss_feed: article filters: ");
1213                                                 if (count($article_filters) != 0) {
1214                                                         print_r($article_filters);
1215                                                 }
1216                                         }
1217
1218                                         if (find_article_filter($article_filters, "filter")) {
1219                                                 db_query($link, "COMMIT"); // close transaction in progress
1220                                                 continue;
1221                                         }
1222
1223                                         $score = calculate_article_score($article_filters);
1224
1225                                         if ($debug_enabled) {
1226                                                 _debug("update_rss_feed: initial score: $score");
1227                                         }
1228
1229                                         $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
1230                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
1231                                                         $dupcheck_qpart";
1232
1233 //                                      if ($_REQUEST["xdebug"]) print "$query\n";
1234
1235                                         $result = db_query($link, $query);
1236
1237                                         // okay it doesn't exist - create user entry
1238                                         if (db_num_rows($result) == 0) {
1239
1240                                                 if ($debug_enabled) {
1241                                                         _debug("update_rss_feed: user record not found, creating...");
1242                                                 }
1243
1244                                                 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
1245                                                         $unread = 'true';
1246                                                         $last_read_qpart = 'NULL';
1247                                                 } else {
1248                                                         $unread = 'false';
1249                                                         $last_read_qpart = 'NOW()';
1250                                                 }
1251
1252                                                 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
1253                                                         $marked = 'true';
1254                                                 } else {
1255                                                         $marked = 'false';
1256                                                 }
1257
1258                                                 if (find_article_filter($article_filters, 'publish')) {
1259                                                         $published = 'true';
1260                                                 } else {
1261                                                         $published = 'false';
1262                                                 }
1263
1264                                                 $result = db_query($link,
1265                                                         "INSERT INTO ttrss_user_entries
1266                                                                 (ref_id, owner_uid, feed_id, unread, last_read, marked,
1267                                                                         published, score, tag_cache, label_cache)
1268                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
1269                                                                 $last_read_qpart, $marked, $published, '$score', '', '')");
1270
1271                                                 if (PUBSUBHUBBUB_HUB && $published == 'true') {
1272                                                         $rss_link = get_self_url_prefix() .
1273                                                                 "/backend.php?op=rss&id=-2&key=" .
1274                                                                 get_feed_access_key($link, -2, false, $owner_uid);
1275
1276                                                         $p = new Publisher(PUBSUBHUBBUB_HUB);
1277
1278                                                         $pubsub_result = $p->publish_update($rss_link);
1279                                                 }
1280
1281                                                 $result = db_query($link,
1282                                                         "SELECT int_id FROM ttrss_user_entries WHERE
1283                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
1284                                                                 feed_id = '$feed' LIMIT 1");
1285
1286                                                 if (db_num_rows($result) == 1) {
1287                                                         $entry_int_id = db_fetch_result($result, 0, "int_id");
1288                                                 }
1289                                         } else {
1290                                                 if ($debug_enabled) {
1291                                                         _debug("update_rss_feed: user record FOUND");
1292                                                 }
1293
1294                                                 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
1295                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
1296                                         }
1297
1298                                         if ($debug_enabled) {
1299                                                 _debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
1300                                         }
1301
1302                                         $post_needs_update = false;
1303                                         $update_insignificant = false;
1304
1305                                         if ($orig_num_comments != $num_comments) {
1306                                                 $post_needs_update = true;
1307                                                 $update_insignificant = true;
1308                                         }
1309
1310                                         if ($content_hash != $orig_content_hash) {
1311                                                 $post_needs_update = true;
1312                                                 $update_insignificant = false;
1313                                         }
1314
1315                                         if (db_escape_string($orig_title) != $entry_title) {
1316                                                 $post_needs_update = true;
1317                                                 $update_insignificant = false;
1318                                         }
1319
1320                                         // if post needs update, update it and mark all user entries
1321                                         // linking to this post as updated
1322                                         if ($post_needs_update) {
1323
1324                                                 if (defined('DAEMON_EXTENDED_DEBUG')) {
1325                                                         _debug("update_rss_feed: post $entry_guid needs update...");
1326                                                 }
1327
1328 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
1329
1330                                                 db_query($link, "UPDATE ttrss_entries
1331                                                         SET title = '$entry_title', content = '$entry_content',
1332                                                                 content_hash = '$content_hash',
1333                                                                 updated = '$entry_timestamp_fmt',
1334                                                                 num_comments = '$num_comments'
1335                                                         WHERE id = '$ref_id'");
1336
1337                                                 if (!$update_insignificant) {
1338                                                         if ($mark_unread_on_update) {
1339                                                                 db_query($link, "UPDATE ttrss_user_entries
1340                                                                         SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
1341                                                         } else if ($update_on_checksum_change) {
1342                                                                 db_query($link, "UPDATE ttrss_user_entries
1343                                                                         SET last_read = null WHERE ref_id = '$ref_id'
1344                                                                                 AND unread = false");
1345                                                         }
1346                                                 }
1347                                         }
1348                                 }
1349
1350                                 db_query($link, "COMMIT");
1351
1352                                 if ($debug_enabled) {
1353                                         _debug("update_rss_feed: assigning labels...");
1354                                 }
1355
1356                                 assign_article_to_labels($link, $entry_ref_id, $article_filters,
1357                                         $owner_uid);
1358
1359                                 if ($debug_enabled) {
1360                                         _debug("update_rss_feed: looking for enclosures...");
1361                                 }
1362
1363                                 // enclosures
1364
1365                                 $enclosures = array();
1366
1367                                 if ($use_simplepie) {
1368                                         $encs = $item->get_enclosures();
1369
1370                                         if (is_array($encs)) {
1371                                                 foreach ($encs as $e) {
1372                                                         $e_item = array(
1373                                                                 $e->link, $e->type, $e->length);
1374
1375                                                         array_push($enclosures, $e_item);
1376                                                 }
1377                                         }
1378
1379                                 } else {
1380                                         // <enclosure>
1381
1382                                         $e_ctr = $item['enclosure#'];
1383
1384                                         if ($e_ctr > 0) {
1385                                                 $e_item = array($item['enclosure@url'],
1386                                                         $item['enclosure@type'],
1387                                                         $item['enclosure@length']);
1388
1389                                                 array_push($enclosures, $e_item);
1390
1391                                                 for ($i = 0; $i <= $e_ctr; $i++ ) {
1392
1393                                                         if ($item["enclosure#$i@url"]) {
1394                                                                 $e_item = array($item["enclosure#$i@url"],
1395                                                                         $item["enclosure#$i@type"],
1396                                                                         $item["enclosure#$i@length"]);
1397                                                                 array_push($enclosures, $e_item);
1398                                                         }
1399                                                 }
1400                                         }
1401
1402                                         // <media:content>
1403                                         // can there be many of those? yes -fox
1404
1405                                         $m_ctr = $item['media']['content#'];
1406
1407                                         if ($m_ctr > 0) {
1408                                                 $e_item = array($item['media']['content@url'],
1409                                                         $item['media']['content@medium'],
1410                                                         $item['media']['content@length']);
1411
1412                                                 array_push($enclosures, $e_item);
1413
1414                                                 for ($i = 0; $i <= $m_ctr; $i++ ) {
1415
1416                                                         if ($item["media"]["content#$i@url"]) {
1417                                                                 $e_item = array($item["media"]["content#$i@url"],
1418                                                                         $item["media"]["content#$i@medium"],
1419                                                                         $item["media"]["content#$i@length"]);
1420                                                                 array_push($enclosures, $e_item);
1421                                                         }
1422                                                 }
1423
1424                                         }
1425                                 }
1426
1427
1428                                 if ($debug_enabled) {
1429                                         _debug("update_rss_feed: article enclosures:");
1430                                         print_r($enclosures);
1431                                 }
1432
1433                                 db_query($link, "BEGIN");
1434
1435                                 foreach ($enclosures as $enc) {
1436                                         $enc_url = db_escape_string($enc[0]);
1437                                         $enc_type = db_escape_string($enc[1]);
1438                                         $enc_dur = db_escape_string($enc[2]);
1439
1440                                         $result = db_query($link, "SELECT id FROM ttrss_enclosures
1441                                                 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1442
1443                                         if (db_num_rows($result) == 0) {
1444                                                 db_query($link, "INSERT INTO ttrss_enclosures
1445                                                         (content_url, content_type, title, duration, post_id) VALUES
1446                                                         ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
1447                                         }
1448                                 }
1449
1450                                 db_query($link, "COMMIT");
1451
1452                                 // check for manual tags (we have to do it here since they're loaded from filters)
1453
1454                                 foreach ($article_filters as $f) {
1455                                         if ($f[0] == "tag") {
1456
1457                                                 $manual_tags = trim_array(explode(",", $f[1]));
1458
1459                                                 foreach ($manual_tags as $tag) {
1460                                                         if (tag_is_valid($tag)) {
1461                                                                 array_push($entry_tags, $tag);
1462                                                         }
1463                                                 }
1464                                         }
1465                                 }
1466
1467                                 // Skip boring tags
1468
1469                                 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref($link,
1470                                         'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1471
1472                                 $filtered_tags = array();
1473                                 $tags_to_cache = array();
1474
1475                                 if ($entry_tags && is_array($entry_tags)) {
1476                                         foreach ($entry_tags as $tag) {
1477                                                 if (array_search($tag, $boring_tags) === false) {
1478                                                         array_push($filtered_tags, $tag);
1479                                                 }
1480                                         }
1481                                 }
1482
1483                                 $filtered_tags = array_unique($filtered_tags);
1484
1485                                 if ($debug_enabled) {
1486                                         _debug("update_rss_feed: filtered article tags:");
1487                                         print_r($filtered_tags);
1488                                 }
1489
1490                                 // Save article tags in the database
1491
1492                                 if (count($filtered_tags) > 0) {
1493
1494                                         db_query($link, "BEGIN");
1495
1496                                         foreach ($filtered_tags as $tag) {
1497
1498                                                 $tag = sanitize_tag($tag);
1499                                                 $tag = db_escape_string($tag);
1500
1501                                                 if (!tag_is_valid($tag)) continue;
1502
1503                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
1504                                                         WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1505                                                         owner_uid = '$owner_uid' LIMIT 1");
1506
1507                                                         if ($result && db_num_rows($result) == 0) {
1508
1509                                                                 db_query($link, "INSERT INTO ttrss_tags
1510                                                                         (owner_uid,tag_name,post_int_id)
1511                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
1512                                                         }
1513
1514                                                 array_push($tags_to_cache, $tag);
1515                                         }
1516
1517                                         /* update the cache */
1518
1519                                         $tags_to_cache = array_unique($tags_to_cache);
1520
1521                                         $tags_str = db_escape_string(join(",", $tags_to_cache));
1522
1523                                         db_query($link, "UPDATE ttrss_user_entries
1524                                                 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1525                                                 AND owner_uid = $owner_uid");
1526
1527                                         db_query($link, "COMMIT");
1528                                 }
1529
1530                                 if ($debug_enabled) {
1531                                         _debug("update_rss_feed: article processed");
1532                                 }
1533                         }
1534
1535                         if (!$last_updated) {
1536                                 if ($debug_enabled) {
1537                                         _debug("update_rss_feed: new feed, catching it up...");
1538                                 }
1539                                 catchup_feed($link, $feed, false, $owner_uid);
1540                         }
1541
1542                         if ($debug_enabled) {
1543                                 _debug("purging feed...");
1544                         }
1545
1546                         purge_feed($link, $feed, 0, $debug_enabled);
1547
1548                         db_query($link, "UPDATE ttrss_feeds
1549                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1550
1551 //                      db_query($link, "COMMIT");
1552
1553                 } else {
1554
1555                         if ($use_simplepie) {
1556                                 $error_msg = mb_substr($rss->error(), 0, 250);
1557                         } else {
1558                                 $error_msg = mb_substr(magpie_error(), 0, 250);
1559                         }
1560
1561                         if ($debug_enabled) {
1562                                 _debug("update_rss_feed: error fetching feed: $error_msg");
1563                         }
1564
1565                         $error_msg = db_escape_string($error_msg);
1566
1567                         db_query($link,
1568                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1569                                         last_updated = NOW() WHERE id = '$feed'");
1570                 }
1571
1572                 if ($use_simplepie) {
1573                         unset($rss);
1574                 }
1575
1576                 if ($debug_enabled) {
1577                         _debug("update_rss_feed: done");
1578                 }
1579
1580         }
1581
1582         function print_select($id, $default, $values, $attributes = "") {
1583                 print "<select name=\"$id\" id=\"$id\" $attributes>";
1584                 foreach ($values as $v) {
1585                         if ($v == $default)
1586                                 $sel = "selected=\"1\"";
1587                          else
1588                                 $sel = "";
1589
1590                         print "<option value=\"$v\" $sel>$v</option>";
1591                 }
1592                 print "</select>";
1593         }
1594
1595         function print_select_hash($id, $default, $values, $attributes = "") {
1596                 print "<select name=\"$id\" id='$id' $attributes>";
1597                 foreach (array_keys($values) as $v) {
1598                         if ($v == $default)
1599                                 $sel = 'selected="selected"';
1600                          else
1601                                 $sel = "";
1602
1603                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
1604                 }
1605
1606                 print "</select>";
1607         }
1608
1609         function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1610                 $matches = array();
1611
1612                 if ($filters["title"]) {
1613                         foreach ($filters["title"] as $filter) {
1614                                 $reg_exp = $filter["reg_exp"];
1615                                 $inverse = $filter["inverse"];
1616                                 if ((!$inverse && @preg_match("/$reg_exp/i", $title)) ||
1617                                                 ($inverse && !@preg_match("/$reg_exp/i", $title))) {
1618
1619                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1620                                 }
1621                         }
1622                 }
1623
1624                 if ($filters["content"]) {
1625                         foreach ($filters["content"] as $filter) {
1626                                 $reg_exp = $filter["reg_exp"];
1627                                 $inverse = $filter["inverse"];
1628
1629                                 if ((!$inverse && @preg_match("/$reg_exp/i", $content)) ||
1630                                                 ($inverse && !@preg_match("/$reg_exp/i", $content))) {
1631
1632                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1633                                 }
1634                         }
1635                 }
1636
1637                 if ($filters["both"]) {
1638                         foreach ($filters["both"] as $filter) {
1639                                 $reg_exp = $filter["reg_exp"];
1640                                 $inverse = $filter["inverse"];
1641
1642                                 if ($inverse) {
1643                                         if (!@preg_match("/$reg_exp/i", $title) && !preg_match("/$reg_exp/i", $content)) {
1644                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1645                                         }
1646                                 } else {
1647                                         if (@preg_match("/$reg_exp/i", $title) || preg_match("/$reg_exp/i", $content)) {
1648                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1649                                         }
1650                                 }
1651                         }
1652                 }
1653
1654                 if ($filters["link"]) {
1655                         $reg_exp = $filter["reg_exp"];
1656                         foreach ($filters["link"] as $filter) {
1657                                 $reg_exp = $filter["reg_exp"];
1658                                 $inverse = $filter["inverse"];
1659
1660                                 if ((!$inverse && @preg_match("/$reg_exp/i", $link)) ||
1661                                                 ($inverse && !@preg_match("/$reg_exp/i", $link))) {
1662
1663                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1664                                 }
1665                         }
1666                 }
1667
1668                 if ($filters["date"]) {
1669                         $reg_exp = $filter["reg_exp"];
1670                         foreach ($filters["date"] as $filter) {
1671                                 $date_modifier = $filter["filter_param"];
1672                                 $inverse = $filter["inverse"];
1673                                 $check_timestamp = strtotime($filter["reg_exp"]);
1674
1675                                 # no-op when timestamp doesn't parse to prevent misfires
1676
1677                                 if ($check_timestamp) {
1678                                         $match_ok = false;
1679
1680                                         if ($date_modifier == "before" && $timestamp < $check_timestamp ||
1681                                                 $date_modifier == "after" && $timestamp > $check_timestamp) {
1682                                                         $match_ok = true;
1683                                         }
1684
1685                                         if ($inverse) $match_ok = !$match_ok;
1686
1687                                         if ($match_ok) {
1688                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1689                                         }
1690                                 }
1691                         }
1692                 }
1693
1694                 if ($filters["author"]) {
1695                         foreach ($filters["author"] as $filter) {
1696                                 $reg_exp = $filter["reg_exp"];
1697                                 $inverse = $filter["inverse"];
1698                                 if ((!$inverse && @preg_match("/$reg_exp/i", $author)) ||
1699                                                 ($inverse && !@preg_match("/$reg_exp/i", $author))) {
1700
1701                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1702                                 }
1703                         }
1704                 }
1705
1706                 if ($filters["tag"]) {
1707
1708                         $tag_string = join(",", $tags);
1709
1710                         foreach ($filters["tag"] as $filter) {
1711                                 $reg_exp = $filter["reg_exp"];
1712                                 $inverse = $filter["inverse"];
1713
1714                                 if ((!$inverse && @preg_match("/$reg_exp/i", $tag_string)) ||
1715                                                 ($inverse && !@preg_match("/$reg_exp/i", $tag_string))) {
1716
1717                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1718                                 }
1719                         }
1720                 }
1721
1722
1723                 return $matches;
1724         }
1725
1726         function find_article_filter($filters, $filter_name) {
1727                 foreach ($filters as $f) {
1728                         if ($f[0] == $filter_name) {
1729                                 return $f;
1730                         };
1731                 }
1732                 return false;
1733         }
1734
1735         function calculate_article_score($filters) {
1736                 $score = 0;
1737
1738                 foreach ($filters as $f) {
1739                         if ($f[0] == "score") {
1740                                 $score += $f[1];
1741                         };
1742                 }
1743                 return $score;
1744         }
1745
1746         function assign_article_to_labels($link, $id, $filters, $owner_uid) {
1747                 foreach ($filters as $f) {
1748                         if ($f[0] == "label") {
1749                                 label_add_article($link, $id, $f[1], $owner_uid);
1750                         };
1751                 }
1752         }
1753
1754         function getmicrotime() {
1755                 list($usec, $sec) = explode(" ",microtime());
1756                 return ((float)$usec + (float)$sec);
1757         }
1758
1759         function print_radio($id, $default, $true_is, $values, $attributes = "") {
1760                 foreach ($values as $v) {
1761
1762                         if ($v == $default)
1763                                 $sel = "checked";
1764                          else
1765                                 $sel = "";
1766
1767                         if ($v == $true_is) {
1768                                 $sel .= " value=\"1\"";
1769                         } else {
1770                                 $sel .= " value=\"0\"";
1771                         }
1772
1773                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
1774                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
1775
1776                 }
1777         }
1778
1779         function initialize_user_prefs($link, $uid, $profile = false) {
1780
1781                 $uid = db_escape_string($uid);
1782
1783                 if (!$profile) {
1784                         $profile = "NULL";
1785                         $profile_qpart = "AND profile IS NULL";
1786                 } else {
1787                         $profile_qpart = "AND profile = '$profile'";
1788                 }
1789
1790                 if (get_schema_version($link) < 63) $profile_qpart = "";
1791
1792                 db_query($link, "BEGIN");
1793
1794                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
1795
1796                 $u_result = db_query($link, "SELECT pref_name
1797                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
1798
1799                 $active_prefs = array();
1800
1801                 while ($line = db_fetch_assoc($u_result)) {
1802                         array_push($active_prefs, $line["pref_name"]);
1803                 }
1804
1805                 while ($line = db_fetch_assoc($result)) {
1806                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
1807 //                              print "adding " . $line["pref_name"] . "<br>";
1808
1809                                 if (get_schema_version($link) < 63) {
1810                                         db_query($link, "INSERT INTO ttrss_user_prefs
1811                                                 (owner_uid,pref_name,value) VALUES
1812                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
1813
1814                                 } else {
1815                                         db_query($link, "INSERT INTO ttrss_user_prefs
1816                                                 (owner_uid,pref_name,value, profile) VALUES
1817                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
1818                                 }
1819
1820                         }
1821                 }
1822
1823                 db_query($link, "COMMIT");
1824
1825         }
1826
1827         function lookup_user_id($link, $user) {
1828
1829                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$user'");
1830
1831                 if (db_num_rows($result) == 1) {
1832                         return db_fetch_result($result, 0, "id");
1833                 } else {
1834                         return false;
1835                 }
1836         }
1837
1838 /*      function http_authenticate_user($link) {
1839                 if (!$_SERVER["PHP_AUTH_USER"]) {
1840
1841                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1842                         header('HTTP/1.0 401 Unauthorized');
1843                         exit;
1844
1845                 } else {
1846                         $auth_result = authenticate_user($link,
1847                                 $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
1848
1849                         if (!$auth_result) {
1850                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1851                                 header('HTTP/1.0 401 Unauthorized');
1852                                 exit;
1853                         }
1854                 }
1855
1856                 return true;
1857         } */
1858
1859         function get_ssl_certificate_id() {
1860                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
1861                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
1862                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
1863                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
1864                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
1865                 }
1866                 return "";
1867         }
1868
1869         function get_login_by_ssl_certificate($link) {
1870
1871                 $cert_serial = db_escape_string(get_ssl_certificate_id());
1872
1873                 if ($cert_serial) {
1874                         $result = db_query($link, "SELECT login FROM ttrss_user_prefs, ttrss_users
1875                                 WHERE pref_name = 'SSL_CERT_SERIAL' AND value = '$cert_serial' AND
1876                                 owner_uid = ttrss_users.id");
1877
1878                         if (db_num_rows($result) != 0) {
1879                                 return db_escape_string(db_fetch_result($result, 0, "login"));
1880                         }
1881                 }
1882
1883                 return "";
1884         }
1885
1886         function get_remote_user($link) {
1887
1888                 if (defined('ALLOW_REMOTE_USER_AUTH') && ALLOW_REMOTE_USER_AUTH) {
1889                         return db_escape_string($_SERVER["REMOTE_USER"]);
1890                 }
1891
1892                 return db_escape_string(get_login_by_ssl_certificate($link));
1893         }
1894
1895         function get_remote_fakepass($link) {
1896                 if (get_remote_user($link))
1897                         return "******";
1898                 else
1899                         return "";
1900         }
1901
1902         function authenticate_user($link, $login, $password, $force_auth = false) {
1903
1904                 if (!SINGLE_USER_MODE) {
1905
1906                         $pwd_hash1 = encrypt_password($password);
1907                         $pwd_hash2 = encrypt_password($password, $login);
1908                         $login = db_escape_string($login);
1909
1910                         $remote_user = get_remote_user($link);
1911
1912                         if ($remote_user && $remote_user == $login && $login != "admin") {
1913
1914                                 $login = $remote_user;
1915
1916                                 $query = "SELECT id,login,access_level,pwd_hash
1917                     FROM ttrss_users WHERE
1918                                         login = '$login'";
1919
1920                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER
1921                                                 && $_SERVER["REMOTE_USER"]) {
1922                                         $result = db_query($link, $query);
1923
1924                                         // First login ?
1925                                         if (db_num_rows($result) == 0) {
1926                                                 $query = "INSERT INTO ttrss_users
1927                                                                 (login,access_level,last_login,created)
1928                                                                 VALUES ('$login', 0, null, NOW())";
1929                                                 db_query($link, $query);
1930                                         }
1931                                 }
1932
1933                         } else {
1934                                 $query = "SELECT id,login,access_level,pwd_hash
1935                     FROM ttrss_users WHERE
1936                                         login = '$login' AND (pwd_hash = '$pwd_hash1' OR
1937                                                 pwd_hash = '$pwd_hash2')";
1938                         }
1939
1940                         $result = db_query($link, $query);
1941
1942                         if (db_num_rows($result) == 1) {
1943                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
1944                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
1945                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
1946
1947                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
1948                                         $_SESSION["uid"]);
1949
1950
1951                                 // LemonLDAP can send user informations via HTTP HEADER
1952                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER){
1953                                         // update user name
1954                                         if ($_SERVER['HTTP_USER_NAME']){
1955                                                 $fullname = db_escape_string($_SERVER['HTTP_USER_NAME']);
1956                                                 db_query($link, "UPDATE ttrss_users SET full_name = '$fullname' WHERE id = " .
1957                                                         $_SESSION["uid"]);
1958                                         }
1959                                         // update user mail
1960                                         if ($_SERVER['HTTP_USER_MAIL']){
1961                                                 $email = db_escape_string($_SERVER['HTTP_USER_MAIL']);
1962                                                 db_query($link, "UPDATE ttrss_users SET email = '$email' WHERE id = " .
1963                                                         $_SESSION["uid"]);
1964                                         }
1965                                 }
1966
1967                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1968                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
1969
1970                                 $_SESSION["last_version_check"] = time();
1971
1972                                 initialize_user_prefs($link, $_SESSION["uid"]);
1973
1974                                 return true;
1975                         }
1976
1977                         return false;
1978
1979                 } else {
1980
1981                         $_SESSION["uid"] = 1;
1982                         $_SESSION["name"] = "admin";
1983
1984                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1985
1986                         initialize_user_prefs($link, $_SESSION["uid"]);
1987
1988                         return true;
1989                 }
1990         }
1991
1992         function make_password($length = 8) {
1993
1994                 $password = "";
1995                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
1996
1997         $i = 0;
1998
1999                 while ($i < $length) {
2000                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
2001
2002                         if (!strstr($password, $char)) {
2003                                 $password .= $char;
2004                                 $i++;
2005                         }
2006                 }
2007                 return $password;
2008         }
2009
2010         // this is called after user is created to initialize default feeds, labels
2011         // or whatever else
2012
2013         // user preferences are checked on every login, not here
2014
2015         function initialize_user($link, $uid) {
2016
2017                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
2018                         values ('$uid', 'Tiny Tiny RSS: New Releases',
2019                         'http://tt-rss.org/releases.rss')");
2020
2021                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
2022                         values ('$uid', 'Tiny Tiny RSS: Forum',
2023                                 'http://tt-rss.org/forum/rss.php')");
2024         }
2025
2026         function logout_user() {
2027                 session_destroy();
2028                 if (isset($_COOKIE[session_name()])) {
2029                    setcookie(session_name(), '', time()-42000, '/');
2030                 }
2031         }
2032
2033         function get_script_urlpath() {
2034                 return preg_replace('/\/[^\/]*$/', "", $_SERVER["REQUEST_URI"]);
2035         }
2036
2037         function validate_session($link) {
2038                 if (SINGLE_USER_MODE) return true;
2039
2040                 $check_ip = $_SESSION['ip_address'];
2041
2042                 switch (SESSION_CHECK_ADDRESS) {
2043                 case 0:
2044                         $check_ip = '';
2045                         break;
2046                 case 1:
2047                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
2048                         break;
2049                 case 2:
2050                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
2051                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
2052                         break;
2053                 };
2054
2055                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) {
2056                         $_SESSION["login_error_msg"] =
2057                                 __("Session failed to validate (incorrect IP)");
2058                         return false;
2059                 }
2060
2061                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
2062                         return false;
2063
2064                 if ($_SESSION["uid"]) {
2065
2066                         $result = db_query($link,
2067                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
2068
2069                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
2070
2071                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
2072                                 return false;
2073                         }
2074                 }
2075
2076 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
2077
2078                         //print_r($_SESSION);
2079
2080                         if (time() > $_SESSION["cookie_lifetime"]) {
2081                                 return false;
2082                         }
2083                 } */
2084
2085                 return true;
2086         }
2087
2088         function login_sequence($link, $mobile = false) {
2089                 if (!SINGLE_USER_MODE) {
2090
2091                         $login_action = $_POST["login_action"];
2092
2093                         # try to authenticate user if called from login form
2094                         if ($login_action == "do_login") {
2095                                 $login = $_POST["login"];
2096                                 $password = $_POST["password"];
2097                                 $remember_me = $_POST["remember_me"];
2098
2099                                 if (authenticate_user($link, $login, $password)) {
2100                                         $_POST["password"] = "";
2101
2102                                         $_SESSION["language"] = $_POST["language"];
2103                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
2104                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
2105
2106                                         if ($_POST["profile"]) {
2107
2108                                                 $profile = db_escape_string($_POST["profile"]);
2109
2110                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
2111                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
2112
2113                                                 if (db_num_rows($result) != 0) {
2114                                                         $_SESSION["profile"] = $profile;
2115                                                         $_SESSION["prefs_cache"] = array();
2116                                                 }
2117                                         }
2118
2119                                         if ($_REQUEST['return']) {
2120                                                 header("Location: " . $_REQUEST['return']);
2121                                         } else {
2122                                                 header("Location: " . $_SERVER["REQUEST_URI"]);
2123                                         }
2124
2125                                         exit;
2126
2127                                         return;
2128                                 } else {
2129                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
2130                                 }
2131                         }
2132
2133                         if (!$_SESSION["uid"] || !validate_session($link)) {
2134
2135                                 if (get_remote_user($link) && AUTO_LOGIN) {
2136                                     authenticate_user($link, get_remote_user($link), null);
2137                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
2138                                 } else {
2139                                     render_login_form($link, $mobile);
2140                                     //header("Location: login.php");
2141                                     exit;
2142                                 }
2143                         } else {
2144                                 /* bump login timestamp */
2145                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
2146                                         $_SESSION["uid"]);
2147
2148                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
2149                                         setcookie("ttrss_lang", $_SESSION["language"],
2150                                                 time() + SESSION_COOKIE_LIFETIME);
2151                                 }
2152                         }
2153
2154                 } else {
2155                         return authenticate_user($link, "admin", null);
2156                 }
2157         }
2158
2159         function truncate_string($str, $max_len, $suffix = '&hellip;') {
2160                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
2161                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
2162                 } else {
2163                         return $str;
2164                 }
2165         }
2166
2167         function theme_image($link, $filename) {
2168                 if ($link) {
2169                         $theme_path = get_user_theme_path($link);
2170
2171                         if ($theme_path && is_file($theme_path.$filename)) {
2172                                 return $theme_path.$filename;
2173                         } else {
2174                                 return $filename;
2175                         }
2176                 } else {
2177                         return $filename;
2178                 }
2179         }
2180
2181         function get_user_theme($link) {
2182
2183                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2184                         $theme_name = get_pref($link, "_THEME_ID");
2185                         if (is_dir("themes/$theme_name")) {
2186                                 return $theme_name;
2187                         } else {
2188                                 return '';
2189                         }
2190                 } else {
2191                         return '';
2192                 }
2193
2194         }
2195
2196         function get_user_theme_path($link) {
2197                 $theme_path = '';
2198
2199                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2200                         $theme_name = get_pref($link, "_THEME_ID");
2201
2202                         if ($theme_name && is_dir("themes/$theme_name")) {
2203                                 $theme_path = "themes/$theme_name/";
2204                         } else {
2205                                 $theme_name = '';
2206                         }
2207                 } else {
2208                         $theme_path = '';
2209                 }
2210
2211                 if ($theme_path) {
2212                         if (is_file("$theme_path/theme.ini")) {
2213                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
2214                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
2215                                         return $theme_path;
2216                                 }
2217                         }
2218                 }
2219                 return '';
2220         }
2221
2222         function get_user_theme_options($link) {
2223                 $t = get_user_theme_path($link);
2224
2225                 if ($t) {
2226                         if (is_file("$t/theme.ini")) {
2227                                 $ini = parse_ini_file("$t/theme.ini", true);
2228                                 if ($ini['theme']['version']) {
2229                                         return $ini['theme']['options'];
2230                                 }
2231                         }
2232                 }
2233                 return '';
2234         }
2235
2236         function print_theme_includes($link) {
2237
2238                 $t = get_user_theme_path($link);
2239                 $time = time();
2240
2241                 if ($t) {
2242                         print "<link rel=\"stylesheet\" type=\"text/css\"
2243                                 href=\"$t/theme.css?$time \">";
2244                         if (file_exists("$t/theme.js")) {
2245                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
2246                                         </script>";
2247                         }
2248                 }
2249         }
2250
2251         function get_all_themes() {
2252                 $themes = glob("themes/*");
2253
2254                 asort($themes);
2255
2256                 $rv = array();
2257
2258                 foreach ($themes as $t) {
2259                         if (is_file("$t/theme.ini")) {
2260                                 $ini = parse_ini_file("$t/theme.ini", true);
2261                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
2262                                                         !$ini['theme']['disabled']) {
2263                                         $entry = array();
2264                                         $entry["path"] = $t;
2265                                         $entry["base"] = basename($t);
2266                                         $entry["name"] = $ini['theme']['name'];
2267                                         $entry["version"] = $ini['theme']['version'];
2268                                         $entry["author"] = $ini['theme']['author'];
2269                                         $entry["options"] = $ini['theme']['options'];
2270                                         array_push($rv, $entry);
2271                                 }
2272                         }
2273                 }
2274
2275                 return $rv;
2276         }
2277
2278         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
2279
2280                 try {
2281                         $source_tz = new DateTimeZone($source_tz);
2282                 } catch (Exception $e) {
2283                         $source_tz = new DateTimeZone('UTC');
2284                 }
2285
2286                 try {
2287                         $dest_tz = new DateTimeZone($dest_tz);
2288                 } catch (Exception $e) {
2289                         $dest_tz = new DateTimeZone('UTC');
2290                 }
2291
2292                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
2293                 return $dt->format('U') + $dest_tz->getOffset($dt);
2294         }
2295
2296         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
2297                                         $no_smart_dt = false) {
2298
2299                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2300                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
2301
2302                 global $utc_tz;
2303                 global $tz_offset;
2304
2305                 # We store date in UTC internally
2306                 $dt = new DateTime($timestamp, $utc_tz);
2307
2308                 if ($tz_offset == -1) {
2309
2310                         $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
2311
2312                         try {
2313                                 $user_tz = new DateTimeZone($user_tz_string);
2314                         } catch (Exception $e) {
2315                                 $user_tz = $utc_tz;
2316                         }
2317
2318                         $tz_offset = $user_tz->getOffset($dt);
2319                 }
2320
2321                 $user_timestamp = $dt->format('U') + $tz_offset;
2322
2323                 if (!$no_smart_dt) {
2324                         return smart_date_time($link, $user_timestamp,
2325                                 $tz_offset, $owner_uid);
2326                 } else {
2327                         if ($long)
2328                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2329                         else
2330                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2331
2332                         return date($format, $user_timestamp);
2333                 }
2334         }
2335
2336         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
2337                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2338
2339                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
2340                         return date("G:i", $timestamp);
2341                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
2342                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2343                         return date($format, $timestamp);
2344                 } else {
2345                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2346                         return date($format, $timestamp);
2347                 }
2348         }
2349
2350         function smart_date($timestamp) {
2351                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
2352                         return "Today";
2353                 } else if (date("Y", $timestamp) == date("Y")) {
2354                         return date("D m", $timestamp);
2355                 } else {
2356                         return date("Y/m/d", $timestamp);
2357                 }
2358         }
2359
2360         function sql_bool_to_string($s) {
2361                 if ($s == "t" || $s == "1") {
2362                         return "true";
2363                 } else {
2364                         return "false";
2365                 }
2366         }
2367
2368         function sql_bool_to_bool($s) {
2369                 if ($s == "t" || $s == "1" || $s == "true") {
2370                         return true;
2371                 } else {
2372                         return false;
2373                 }
2374         }
2375
2376         function bool_to_sql_bool($s) {
2377                 if ($s) {
2378                         return "true";
2379                 } else {
2380                         return "false";
2381                 }
2382         }
2383
2384         function toggleEvenOdd($a) {
2385                 if ($a == "even")
2386                         return "odd";
2387                 else
2388                         return "even";
2389         }
2390
2391         // Session caching removed due to causing wrong redirects to upgrade
2392         // script when get_schema_version() is called on an obsolete session
2393         // created on a previous schema version.
2394         function get_schema_version($link, $nocache = false) {
2395                 global $schema_version;
2396
2397                 if (!$schema_version) {
2398                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
2399                         $version = db_fetch_result($result, 0, "schema_version");
2400                         $schema_version = $version;
2401                         return $version;
2402                 } else {
2403                         return $schema_version;
2404                 }
2405         }
2406
2407         function sanity_check($link) {
2408
2409                 global $ERRORS;
2410
2411                 $error_code = 0;
2412                 $schema_version = get_schema_version($link, true);
2413
2414                 if ($schema_version != SCHEMA_VERSION) {
2415                         $error_code = 5;
2416                 }
2417
2418                 if (DB_TYPE == "mysql") {
2419                         $result = db_query($link, "SELECT true", false);
2420                         if (db_num_rows($result) != 1) {
2421                                 $error_code = 10;
2422                         }
2423                 }
2424
2425                 if (db_escape_string("testTEST") != "testTEST") {
2426                         $error_code = 12;
2427                 }
2428
2429                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
2430         }
2431
2432         function file_is_locked($filename) {
2433                 if (function_exists('flock')) {
2434                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
2435                         if ($fp) {
2436                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2437                                         flock($fp, LOCK_UN);
2438                                         fclose($fp);
2439                                         return false;
2440                                 }
2441                                 fclose($fp);
2442                                 return true;
2443                         } else {
2444                                 return false;
2445                         }
2446                 }
2447                 return true; // consider the file always locked and skip the test
2448         }
2449
2450         function make_lockfile($filename) {
2451                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2452
2453                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2454                         if (function_exists('posix_getpid')) {
2455                                 fwrite($fp, posix_getpid() . "\n");
2456                         }
2457                         return $fp;
2458                 } else {
2459                         return false;
2460                 }
2461         }
2462
2463         function make_stampfile($filename) {
2464                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2465
2466                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2467                         fwrite($fp, time() . "\n");
2468                         flock($fp, LOCK_UN);
2469                         fclose($fp);
2470                         return true;
2471                 } else {
2472                         return false;
2473                 }
2474         }
2475
2476         function sql_random_function() {
2477                 if (DB_TYPE == "mysql") {
2478                         return "RAND()";
2479                 } else {
2480                         return "RANDOM()";
2481                 }
2482         }
2483
2484         function catchup_feed($link, $feed, $cat_view, $owner_uid = false) {
2485
2486                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2487
2488                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2489
2490                                 if ($cat_view) {
2491
2492                                         if ($feed >= 0) {
2493
2494                                                 if ($feed > 0) {
2495                                                         $cat_qpart = "cat_id = '$feed'";
2496                                                 } else {
2497                                                         $cat_qpart = "cat_id IS NULL";
2498                                                 }
2499
2500                                                 $tmp_result = db_query($link, "SELECT id
2501                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = $owner_uid");
2502
2503                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
2504
2505                                                         $tmp_feed = $tmp_line["id"];
2506
2507                                                         db_query($link, "UPDATE ttrss_user_entries
2508                                                                 SET unread = false,last_read = NOW()
2509                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = $owner_uid");
2510                                                 }
2511                                         } else if ($feed == -2) {
2512
2513
2514                                                 db_query($link, "UPDATE ttrss_user_entries
2515                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
2516                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
2517                                                         AND unread = true AND owner_uid = $owner_uid");
2518                                         }
2519
2520                                 } else if ($feed > 0) {
2521
2522                                         db_query($link, "UPDATE ttrss_user_entries
2523                                                         SET unread = false,last_read = NOW()
2524                                                         WHERE feed_id = '$feed' AND owner_uid = $owner_uid");
2525
2526                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
2527
2528                                         if ($feed == -1) {
2529                                                 db_query($link, "UPDATE ttrss_user_entries
2530                                                         SET unread = false,last_read = NOW()
2531                                                         WHERE marked = true AND owner_uid = $owner_uid");
2532                                         }
2533
2534                                         if ($feed == -2) {
2535                                                 db_query($link, "UPDATE ttrss_user_entries
2536                                                         SET unread = false,last_read = NOW()
2537                                                         WHERE published = true AND owner_uid = $owner_uid");
2538                                         }
2539
2540                                         if ($feed == -3) {
2541
2542                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
2543
2544                                                 if (DB_TYPE == "pgsql") {
2545                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
2546                                                 } else {
2547                                                         $match_part = "updated > DATE_SUB(NOW(),
2548                                                                 INTERVAL $intl HOUR) ";
2549                                                 }
2550
2551                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
2552                                                         ttrss_user_entries WHERE $match_part AND
2553                                                         unread = true AND
2554                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2555                                                         owner_uid = $owner_uid");
2556
2557                                                 $affected_ids = array();
2558
2559                                                 while ($line = db_fetch_assoc($result)) {
2560                                                         array_push($affected_ids, $line["id"]);
2561                                                 }
2562
2563                                                 catchupArticlesById($link, $affected_ids, 0);
2564                                         }
2565
2566                                         if ($feed == -4) {
2567                                                 db_query($link, "UPDATE ttrss_user_entries
2568                                                         SET unread = false,last_read = NOW()
2569                                                         WHERE owner_uid = $owner_uid");
2570                                         }
2571
2572                                 } else if ($feed < -10) { // label
2573
2574                                         $label_id = -$feed - 11;
2575
2576                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
2577                                                 SET unread = false, last_read = NOW()
2578                                                         WHERE label_id = '$label_id' AND unread = true
2579                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
2580
2581                                 }
2582
2583                                 ccache_update($link, $feed, $owner_uid, $cat_view);
2584
2585                         } else { // tag
2586                                 db_query($link, "BEGIN");
2587
2588                                 $tag_name = db_escape_string($feed);
2589
2590                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
2591                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
2592
2593                                 while ($line = db_fetch_assoc($result)) {
2594                                         db_query($link, "UPDATE ttrss_user_entries SET
2595                                                 unread = false, last_read = NOW()
2596                                                 WHERE int_id = " . $line["post_int_id"]);
2597                                 }
2598                                 db_query($link, "COMMIT");
2599                         }
2600         }
2601
2602         function getAllCounters($link, $omode = "flc", $active_feed = false) {
2603
2604                 if (!$omode) $omode = "flc";
2605
2606                 $data = getGlobalCounters($link);
2607
2608                 $data = array_merge($data, getVirtCounters($link));
2609
2610                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
2611                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
2612                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
2613                 if (strchr($omode, "c")) $data = array_merge($data, getCategoryCounters($link));
2614
2615                 return $data;
2616         }
2617
2618         function getCategoryCounters($link) {
2619                 $ret_arr = array();
2620
2621                 /* Labels category */
2622
2623                 $cv = array("id" => -2, "kind" => "cat",
2624                         "counter" => getCategoryUnread($link, -2));
2625
2626                 array_push($ret_arr, $cv);
2627
2628                 $age_qpart = getMaxAgeSubquery();
2629
2630                 $result = db_query($link, "SELECT id AS cat_id, value AS unread
2631                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
2632                         WHERE ttrss_cat_counters_cache.feed_id = id AND
2633                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
2634
2635                 while ($line = db_fetch_assoc($result)) {
2636                         $line["cat_id"] = (int) $line["cat_id"];
2637
2638                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
2639                                 "counter" => $line["unread"]);
2640
2641                         array_push($ret_arr, $cv);
2642                 }
2643
2644                 /* Special case: NULL category doesn't actually exist in the DB */
2645
2646                 $cv = array("id" => 0, "kind" => "cat",
2647                         "counter" => ccache_find($link, 0, $_SESSION["uid"], true));
2648
2649                 array_push($ret_arr, $cv);
2650
2651                 return $ret_arr;
2652         }
2653
2654         function getCategoryUnread($link, $cat, $owner_uid = false) {
2655
2656                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2657
2658                 if ($cat >= 0) {
2659
2660                         if ($cat != 0) {
2661                                 $cat_query = "cat_id = '$cat'";
2662                         } else {
2663                                 $cat_query = "cat_id IS NULL";
2664                         }
2665
2666                         $age_qpart = getMaxAgeSubquery();
2667
2668                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
2669                                         AND owner_uid = " . $owner_uid);
2670
2671                         $cat_feeds = array();
2672                         while ($line = db_fetch_assoc($result)) {
2673                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
2674                         }
2675
2676                         if (count($cat_feeds) == 0) return 0;
2677
2678                         $match_part = implode(" OR ", $cat_feeds);
2679
2680                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
2681                                 FROM ttrss_user_entries,ttrss_entries
2682                                 WHERE   unread = true AND ($match_part) AND id = ref_id
2683                                 AND $age_qpart AND owner_uid = " . $owner_uid);
2684
2685                         $unread = 0;
2686
2687                         # this needs to be rewritten
2688                         while ($line = db_fetch_assoc($result)) {
2689                                 $unread += $line["unread"];
2690                         }
2691
2692                         return $unread;
2693                 } else if ($cat == -1) {
2694                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
2695                 } else if ($cat == -2) {
2696
2697                         $result = db_query($link, "
2698                                 SELECT COUNT(unread) AS unread FROM
2699                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2700                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2701                                         ttrss_labels2.owner_uid = '$owner_uid'
2702                                         AND unread = true AND feed_id = ttrss_feeds.id
2703                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
2704
2705                         $unread = db_fetch_result($result, 0, "unread");
2706
2707                         return $unread;
2708
2709                 }
2710         }
2711
2712         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
2713                 if (DB_TYPE == "pgsql") {
2714                         return "ttrss_entries.date_updated >
2715                                 NOW() - INTERVAL '$days days'";
2716                 } else {
2717                         return "ttrss_entries.date_updated >
2718                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
2719                 }
2720         }
2721
2722         function getFeedUnread($link, $feed, $is_cat = false) {
2723                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
2724         }
2725
2726         function getLabelUnread($link, $label_id, $owner_uid = false) {
2727                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2728
2729                 $result = db_query($link, "
2730                         SELECT COUNT(unread) AS unread FROM
2731                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2732                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2733                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
2734                                 AND unread = true AND feed_id = ttrss_feeds.id
2735                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
2736
2737                 if (db_num_rows($result) != 0) {
2738                         return db_fetch_result($result, 0, "unread");
2739                 } else {
2740                         return 0;
2741                 }
2742         }
2743
2744         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
2745                 $owner_uid = false) {
2746
2747                 $n_feed = (int) $feed;
2748
2749                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2750
2751                 if ($unread_only) {
2752                         $unread_qpart = "unread = true";
2753                 } else {
2754                         $unread_qpart = "true";
2755                 }
2756
2757                 $age_qpart = getMaxAgeSubquery();
2758
2759                 if ($is_cat) {
2760                         return getCategoryUnread($link, $n_feed, $owner_uid);
2761                 } if ($feed != "0" && $n_feed == 0) {
2762
2763                         $feed = db_escape_string($feed);
2764
2765                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
2766                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2767                                         AND ref_id = id AND $age_qpart
2768                                         AND $unread_qpart)) AS count FROM ttrss_tags
2769                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
2770                         return db_fetch_result($result, 0, "count");
2771
2772                 } else if ($n_feed == -1) {
2773                         $match_part = "marked = true";
2774                 } else if ($n_feed == -2) {
2775                         $match_part = "published = true";
2776                 } else if ($n_feed == -3) {
2777                         $match_part = "unread = true AND score >= 0";
2778
2779                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2780
2781                         if (DB_TYPE == "pgsql") {
2782                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2783                         } else {
2784                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2785                         }
2786                 } else if ($n_feed == -4) {
2787                         $match_part = "true";
2788                 } else if ($n_feed >= 0) {
2789
2790                         if ($n_feed != 0) {
2791                                 $match_part = "feed_id = '$n_feed'";
2792                         } else {
2793                                 $match_part = "feed_id IS NULL";
2794                         }
2795
2796                 } else if ($feed < -10) {
2797
2798                         $label_id = -$feed - 11;
2799
2800                         return getLabelUnread($link, $label_id, $owner_uid);
2801
2802                 }
2803
2804                 if ($match_part) {
2805
2806                         if ($n_feed != 0) {
2807                                 $from_qpart = "ttrss_user_entries,ttrss_feeds,ttrss_entries";
2808                                 $feeds_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2809                         } else {
2810                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
2811                                 $feeds_qpart = '';
2812                         }
2813
2814                         $query = "SELECT count(int_id) AS unread
2815                                 FROM $from_qpart WHERE
2816                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
2817                                 $age_qpart AND
2818                                 $feeds_qpart
2819                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
2820
2821                         $result = db_query($link, $query);
2822
2823                 } else {
2824
2825                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
2826                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
2827                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
2828                                 AND $unread_qpart AND $age_qpart AND
2829                                         ttrss_tags.owner_uid = " . $owner_uid);
2830                 }
2831
2832                 $unread = db_fetch_result($result, 0, "unread");
2833
2834                 return $unread;
2835         }
2836
2837         function getGlobalUnread($link, $user_id = false) {
2838
2839                 if (!$user_id) {
2840                         $user_id = $_SESSION["uid"];
2841                 }
2842
2843                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
2844                         WHERE owner_uid = '$user_id' AND feed_id > 0");
2845
2846                 $c_id = db_fetch_result($result, 0, "c_id");
2847
2848                 return $c_id;
2849         }
2850
2851         function getGlobalCounters($link, $global_unread = -1) {
2852                 $ret_arr = array();
2853
2854                 if ($global_unread == -1) {
2855                         $global_unread = getGlobalUnread($link);
2856                 }
2857
2858                 $cv = array("id" => "global-unread",
2859                         "counter" => $global_unread);
2860
2861                 array_push($ret_arr, $cv);
2862
2863                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2864                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2865
2866                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
2867
2868                 $cv = array("id" => "subscribed-feeds",
2869                         "counter" => $subscribed_feeds);
2870
2871                 array_push($ret_arr, $cv);
2872
2873                 return $ret_arr;
2874         }
2875
2876         function getSubscribedFeeds($link) {
2877                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2878                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2879
2880                 return db_fetch_result($result, 0, "fn");
2881         }
2882
2883         function getTagCounters($link) {
2884
2885                 $ret_arr = array();
2886
2887                 $age_qpart = getMaxAgeSubquery();
2888
2889                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
2890                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2891                                 AND ref_id = id AND $age_qpart
2892                                 AND unread = true)) AS count FROM ttrss_tags
2893                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
2894                                 ORDER BY count DESC LIMIT 55");
2895
2896                 $tags = array();
2897
2898                 while ($line = db_fetch_assoc($result)) {
2899                         $tags[$line["tag_name"]] += $line["count"];
2900                 }
2901
2902                 foreach (array_keys($tags) as $tag) {
2903                         $unread = $tags[$tag];
2904                         $tag = htmlspecialchars($tag);
2905
2906                         $cv = array("id" => $tag,
2907                                 "kind" => "tag",
2908                                 "counter" => $unread);
2909
2910                         array_push($ret_arr, $cv);
2911                 }
2912
2913                 return $ret_arr;
2914         }
2915
2916         function getVirtCounters($link) {
2917
2918                 $ret_arr = array();
2919
2920                 for ($i = 0; $i >= -4; $i--) {
2921
2922                         $count = getFeedUnread($link, $i);
2923
2924                         $cv = array("id" => $i,
2925                                 "counter" => $count);
2926
2927 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2928 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
2929
2930                         array_push($ret_arr, $cv);
2931                 }
2932
2933                 return $ret_arr;
2934         }
2935
2936         function getLabelCounters($link, $descriptions = false) {
2937
2938                 $ret_arr = array();
2939
2940                 $age_qpart = getMaxAgeSubquery();
2941
2942                 $owner_uid = $_SESSION["uid"];
2943
2944                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
2945                         WHERE owner_uid = '$owner_uid'");
2946
2947                 while ($line = db_fetch_assoc($result)) {
2948
2949                         $id = -$line["id"] - 11;
2950
2951                         $label_name = $line["caption"];
2952                         $count = getFeedUnread($link, $id);
2953
2954                         $cv = array("id" => $id,
2955                                 "counter" => $count);
2956
2957                         if ($descriptions)
2958                                 $cv["description"] = $label_name;
2959
2960 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2961 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2962
2963                         array_push($ret_arr, $cv);
2964                 }
2965
2966                 return $ret_arr;
2967         }
2968
2969         function getFeedCounters($link, $active_feed = false) {
2970
2971                 $ret_arr = array();
2972
2973                 $age_qpart = getMaxAgeSubquery();
2974
2975                 $query = "SELECT ttrss_feeds.id,
2976                                 ttrss_feeds.title,
2977                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
2978                                 last_error, value AS count
2979                         FROM ttrss_feeds, ttrss_counters_cache
2980                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
2981                                 AND ttrss_counters_cache.feed_id = id";
2982
2983                 $result = db_query($link, $query);
2984                 $fctrs_modified = false;
2985
2986                 while ($line = db_fetch_assoc($result)) {
2987
2988                         $id = $line["id"];
2989                         $count = $line["count"];
2990                         $last_error = htmlspecialchars($line["last_error"]);
2991
2992                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
2993
2994                         $has_img = feed_has_icon($id);
2995
2996                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
2997                                 $last_updated = '';
2998
2999                         $cv = array("id" => $id,
3000                                 "updated" => $last_updated,
3001                                 "counter" => $count,
3002                                 "has_img" => (int) $has_img);
3003
3004                         if ($last_error)
3005                                 $cv["error"] = $last_error;
3006
3007 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
3008 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
3009
3010                         if ($active_feed && $id == $active_feed)
3011                                 $cv["title"] = truncate_string($line["title"], 30);
3012
3013                         array_push($ret_arr, $cv);
3014
3015                 }
3016
3017                 return $ret_arr;
3018         }
3019
3020         function get_pgsql_version($link) {
3021                 $result = db_query($link, "SELECT version() AS version");
3022                 $version = explode(" ", db_fetch_result($result, 0, "version"));
3023                 return $version[1];
3024         }
3025
3026         /**
3027          * Subscribes the user to the given feed
3028          *
3029          * @param resource $link       Database connection
3030          * @param string   $url        Feed URL to subscribe to
3031          * @param integer  $cat_id     Category ID the feed shall be added to
3032          * @param string   $auth_login (optional) Feed username
3033          * @param string   $auth_pass  (optional) Feed password
3034          *
3035          * @return integer Status code:
3036          *                 0 - OK, Feed already exists
3037          *                 1 - OK, Feed added
3038          *                 2 - Invalid URL
3039          *                 3 - URL content is HTML, no feeds available
3040          *                 4 - URL content is HTML which contains multiple feeds.
3041          *                     Here you should call extractfeedurls in rpc-backend
3042          *                     to get all possible feeds.
3043          *                 5 - Couldn't download the URL content.
3044          */
3045         function subscribe_to_feed($link, $url, $cat_id = 0,
3046                         $auth_login = '', $auth_pass = '') {
3047
3048                 $url = fix_url($url);
3049
3050                 if (!$url || !validate_feed_url($url)) return 2;
3051
3052                 $update_method = 0;
3053
3054                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
3055                         WHERE id = ".$_SESSION['uid']);
3056
3057                 $has_oauth = db_fetch_result($result, 0, 'twitter_oauth');
3058
3059                 if (!$has_oauth || strpos($url, '://api.twitter.com') === false) {
3060                         if (!fetch_file_contents($url, false, $auth_login, $auth_pass)) return 5;
3061
3062                         if (url_is_html($url, $auth_login, $auth_pass)) {
3063                                 $feedUrls = get_feeds_from_html($url, $auth_login, $auth_pass);
3064                                 if (count($feedUrls) == 0) {
3065                                         return 3;
3066                                 } else if (count($feedUrls) > 1) {
3067                                         return 4;
3068                                 }
3069                                 //use feed url as new URL
3070                                 $url = key($feedUrls);
3071                         }
3072
3073                         } else {
3074                                 if (!fetch_twitter_rss($link, $url, $_SESSION['uid']))
3075                                         return 5;
3076
3077                                 $update_method = 3;
3078                         }
3079                 if ($cat_id == "0" || !$cat_id) {
3080                         $cat_qpart = "NULL";
3081                 } else {
3082                         $cat_qpart = "'$cat_id'";
3083                 }
3084
3085                 $result = db_query($link,
3086                         "SELECT id FROM ttrss_feeds
3087                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
3088
3089                 if (db_num_rows($result) == 0) {
3090                         $result = db_query($link,
3091                                 "INSERT INTO ttrss_feeds
3092                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
3093                                 VALUES ('".$_SESSION["uid"]."', '$url',
3094                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
3095
3096                         $result = db_query($link,
3097                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
3098                                         AND owner_uid = " . $_SESSION["uid"]);
3099
3100                         $feed_id = db_fetch_result($result, 0, "id");
3101
3102                         if ($feed_id) {
3103                                 update_rss_feed($link, $feed_id, true);
3104                         }
3105
3106                         return 1;
3107                 } else {
3108                         return 0;
3109                 }
3110         }
3111
3112         function print_feed_select($link, $id, $default_id = "",
3113                 $attributes = "", $include_all_feeds = true) {
3114
3115                 print "<select id=\"$id\" name=\"$id\" $attributes>";
3116                 if ($include_all_feeds) {
3117                         print "<option value=\"0\">".__('All feeds')."</option>";
3118                 }
3119
3120                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
3121                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3122
3123                 if (db_num_rows($result) > 0 && $include_all_feeds) {
3124                         print "<option disabled>--------</option>";
3125                 }
3126
3127                 while ($line = db_fetch_assoc($result)) {
3128                         if ($line["id"] == $default_id) {
3129                                 $is_selected = "selected=\"1\"";
3130                         } else {
3131                                 $is_selected = "";
3132                         }
3133
3134                         $title = truncate_string(htmlspecialchars($line["title"]), 40);
3135
3136                         printf("<option $is_selected value='%d'>%s</option>",
3137                                 $line["id"], $title);
3138                 }
3139
3140                 print "</select>";
3141         }
3142
3143         function print_feed_cat_select($link, $id, $default_id = "",
3144                 $attributes = "", $include_all_cats = true) {
3145
3146                 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
3147
3148                 if ($include_all_cats) {
3149                         print "<option value=\"0\">".__('Uncategorized')."</option>";
3150                 }
3151
3152                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
3153                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3154
3155                 if (db_num_rows($result) > 0 && $include_all_cats) {
3156                         print "<option disabled=\"1\">--------</option>";
3157                 }
3158
3159                 while ($line = db_fetch_assoc($result)) {
3160                         if ($line["id"] == $default_id) {
3161                                 $is_selected = "selected=\"1\"";
3162                         } else {
3163                                 $is_selected = "";
3164                         }
3165
3166                         if ($line["title"])
3167                                 printf("<option $is_selected value='%d'>%s</option>",
3168                                         $line["id"], htmlspecialchars($line["title"]));
3169                 }
3170
3171 #               print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
3172
3173                 print "</select>";
3174         }
3175
3176         function checkbox_to_sql_bool($val) {
3177                 return ($val == "on") ? "true" : "false";
3178         }
3179
3180         function getFeedCatTitle($link, $id) {
3181                 if ($id == -1) {
3182                         return __("Special");
3183                 } else if ($id < -10) {
3184                         return __("Labels");
3185                 } else if ($id > 0) {
3186                         $result = db_query($link, "SELECT ttrss_feed_categories.title
3187                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
3188                                         cat_id = ttrss_feed_categories.id");
3189                         if (db_num_rows($result) == 1) {
3190                                 return db_fetch_result($result, 0, "title");
3191                         } else {
3192                                 return __("Uncategorized");
3193                         }
3194                 } else {
3195                         return "getFeedCatTitle($id) failed";
3196                 }
3197
3198         }
3199
3200         function getFeedIcon($id) {
3201                 switch ($id) {
3202                 case 0:
3203                         return "images/archive.png";
3204                         break;
3205                 case -1:
3206                         return "images/mark_set.png";
3207                         break;
3208                 case -2:
3209                         return "images/pub_set.png";
3210                         break;
3211                 case -3:
3212                         return "images/fresh.png";
3213                         break;
3214                 case -4:
3215                         return "images/tag.png";
3216                         break;
3217                 default:
3218                         if ($id < -10) {
3219                                 return "images/label.png";
3220                         } else {
3221                                 if (file_exists(ICONS_DIR . "/$id.ico"))
3222                                         return ICONS_URL . "/$id.ico";
3223                         }
3224                         break;
3225                 }
3226         }
3227
3228         function getFeedTitle($link, $id) {
3229                 if ($id == -1) {
3230                         return __("Starred articles");
3231                 } else if ($id == -2) {
3232                         return __("Published articles");
3233                 } else if ($id == -3) {
3234                         return __("Fresh articles");
3235                 } else if ($id == -4) {
3236                         return __("All articles");
3237                 } else if ($id === 0 || $id === "0") {
3238                         return __("Archived articles");
3239                 } else if ($id < -10) {
3240                         $label_id = -$id - 11;
3241                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
3242                         if (db_num_rows($result) == 1) {
3243                                 return db_fetch_result($result, 0, "caption");
3244                         } else {
3245                                 return "Unknown label ($label_id)";
3246                         }
3247
3248                 } else if ($id > 0) {
3249                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
3250                         if (db_num_rows($result) == 1) {
3251                                 return db_fetch_result($result, 0, "title");
3252                         } else {
3253                                 return "Unknown feed ($id)";
3254                         }
3255                 } else {
3256                         return $id;
3257                 }
3258         }
3259
3260         function get_session_cookie_name() {
3261                 return ((!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME);
3262         }
3263
3264         function make_init_params($link) {
3265                 $params = array();
3266
3267                 $params["theme"] = get_user_theme($link);
3268                 $params["theme_options"] = get_user_theme_options($link);
3269
3270                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
3271                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
3272                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
3273                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
3274
3275                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
3276                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
3277                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
3278                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
3279
3280                                  $params[strtolower($param)] = (int) get_pref($link, $param);
3281                  }
3282
3283                 $params["icons_url"] = ICONS_URL;
3284                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
3285                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
3286                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
3287                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
3288                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
3289
3290                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3291                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3292
3293                 $max_feed_id = db_fetch_result($result, 0, "mid");
3294                 $num_feeds = db_fetch_result($result, 0, "nf");
3295
3296                 $params["max_feed_id"] = (int) $max_feed_id;
3297                 $params["num_feeds"] = (int) $num_feeds;
3298
3299                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
3300
3301                 return $params;
3302         }
3303
3304         function print_runtime_info($link) {
3305                 print "<runtime-info><![CDATA[";
3306                 print json_encode(make_runtime_info($link));
3307                 print "]]></runtime-info>";
3308         }
3309
3310         function make_runtime_info($link) {
3311                 $data = array();
3312
3313                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3314                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3315
3316                 $max_feed_id = db_fetch_result($result, 0, "mid");
3317                 $num_feeds = db_fetch_result($result, 0, "nf");
3318
3319                 $data["max_feed_id"] = (int) $max_feed_id;
3320                 $data["num_feeds"] = (int) $num_feeds;
3321
3322                 $data['last_article_id'] = getLastArticleId($link);
3323                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
3324
3325                 if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
3326
3327                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
3328
3329                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
3330
3331                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
3332
3333                                 if ($stamp) {
3334                                         $stamp_delta = time() - $stamp;
3335
3336                                         if ($stamp_delta > 1800) {
3337                                                 $stamp_check = 0;
3338                                         } else {
3339                                                 $stamp_check = 1;
3340                                                 $_SESSION["daemon_stamp_check"] = time();
3341                                         }
3342
3343                                         $data['daemon_stamp_ok'] = $stamp_check;
3344
3345                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
3346
3347                                         $data['daemon_stamp'] = $stamp_fmt;
3348                                 }
3349                         }
3350                 }
3351
3352                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
3353                                 $new_version_details = @check_for_update($link);
3354
3355                                 $data['new_version_available'] = (int) ($new_version_details != false);
3356
3357                                 $_SESSION["last_version_check"] = time();
3358                 }
3359
3360                 return $data;
3361         }
3362
3363         function search_to_sql($link, $search, $match_on) {
3364
3365                 $search_query_part = "";
3366
3367                 $keywords = explode(" ", $search);
3368                 $query_keywords = array();
3369
3370                 foreach ($keywords as $k) {
3371                         if (strpos($k, "-") === 0) {
3372                                 $k = substr($k, 1);
3373                                 $not = "NOT";
3374                         } else {
3375                                 $not = "";
3376                         }
3377
3378                         $commandpair = explode(":", mb_strtolower($k), 2);
3379
3380                         if ($commandpair[0] == "note" && $commandpair[1]) {
3381
3382                                 if ($commandpair[1] == "true")
3383                                         array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
3384                                 else
3385                                         array_push($query_keywords, "($not (note IS NULL OR note = ''))");
3386
3387                         } else if ($commandpair[0] == "star" && $commandpair[1]) {
3388
3389                                 if ($commandpair[1] == "true")
3390                                         array_push($query_keywords, "($not (marked = true))");
3391                                 else
3392                                         array_push($query_keywords, "($not (marked = false))");
3393
3394                         } else if ($commandpair[0] == "pub" && $commandpair[1]) {
3395
3396                                 if ($commandpair[1] == "true")
3397                                         array_push($query_keywords, "($not (published = true))");
3398                                 else
3399                                         array_push($query_keywords, "($not (published = false))");
3400
3401                         } else if (strpos($k, "@") === 0) {
3402
3403                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
3404                                 $orig_ts = strtotime(substr($k, 1));
3405                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
3406
3407                                 //$k = date("Y-m-d", strtotime(substr($k, 1)));
3408
3409                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
3410                         } else if ($match_on == "both") {
3411                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
3412                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3413                         } else if ($match_on == "title") {
3414                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
3415                         } else if ($match_on == "content") {
3416                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3417                         }
3418                 }
3419
3420                 $search_query_part = implode("AND", $query_keywords);
3421
3422                 return $search_query_part;
3423         }
3424
3425         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false) {
3426
3427                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3428
3429                 $ext_tables_part = "";
3430
3431                         if ($search) {
3432
3433                                 if (SPHINX_ENABLED) {
3434                                         $ids = join(",", @sphinx_search($search, 0, 500));
3435
3436                                         if ($ids)
3437                                                 $search_query_part = "ref_id IN ($ids) AND ";
3438                                         else
3439                                                 $search_query_part = "ref_id = -1 AND ";
3440
3441                                 } else {
3442                                         $search_query_part = search_to_sql($link, $search, $match_on);
3443                                         $search_query_part .= " AND ";
3444                                 }
3445
3446                         } else {
3447                                 $search_query_part = "";
3448                         }
3449
3450                         if ($filter) {
3451                                 $filter_query_part = filter_to_sql($filter);
3452                         } else {
3453                                 $filter_query_part = "";
3454                         }
3455
3456                         $view_query_part = "";
3457
3458                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
3459                                 if ($search) {
3460                                         $view_query_part = " ";
3461                                 } else if ($feed != -1) {
3462                                         $unread = getFeedUnread($link, $feed, $cat_view);
3463                                         if ($unread > 0) {
3464                                                 $view_query_part = " unread = true AND ";
3465                                         }
3466                                 }
3467                         }
3468
3469                         if ($view_mode == "marked") {
3470                                 $view_query_part = " marked = true AND ";
3471                         }
3472
3473                         if ($view_mode == "published") {
3474                                 $view_query_part = " published = true AND ";
3475                         }
3476
3477                         if ($view_mode == "unread") {
3478                                 $view_query_part = " unread = true AND ";
3479                         }
3480
3481                         if ($view_mode == "updated") {
3482                                 $view_query_part = " (last_read is null and unread = false) AND ";
3483                         }
3484
3485                         if ($limit > 0) {
3486                                 $limit_query_part = "LIMIT " . $limit;
3487                         }
3488
3489                         $vfeed_query_part = "";
3490
3491                         // override query strategy and enable feed display when searching globally
3492                         if ($search && $search_mode == "all_feeds") {
3493                                 $query_strategy_part = "ttrss_entries.id > 0";
3494                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3495                         /* tags */
3496                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
3497                                 $query_strategy_part = "ttrss_entries.id > 0";
3498                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
3499                                         id = feed_id) as feed_title,";
3500                         } else if ($feed > 0 && $search && $search_mode == "this_cat") {
3501
3502                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3503
3504                                 $tmp_result = false;
3505
3506                                 if ($cat_view) {
3507                                         $tmp_result = db_query($link, "SELECT id
3508                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
3509                                 } else {
3510                                         $tmp_result = db_query($link, "SELECT id
3511                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
3512                                                         WHERE id = '$feed') AND id != '$feed'");
3513                                 }
3514
3515                                 $cat_siblings = array();
3516
3517                                 if (db_num_rows($tmp_result) > 0) {
3518                                         while ($p = db_fetch_assoc($tmp_result)) {
3519                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
3520                                         }
3521
3522                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
3523                                                 $feed, implode(" OR ", $cat_siblings));
3524
3525                                 } else {
3526                                         $query_strategy_part = "ttrss_entries.id > 0";
3527                                 }
3528
3529                         } else if ($feed > 0) {
3530
3531                                 if ($cat_view) {
3532
3533                                         if ($feed > 0) {
3534                                                 $query_strategy_part = "cat_id = '$feed'";
3535                                         } else {
3536                                                 $query_strategy_part = "cat_id IS NULL";
3537                                         }
3538
3539                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3540
3541                                 } else {
3542                                         $query_strategy_part = "feed_id = '$feed'";
3543                                 }
3544                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
3545                                 $query_strategy_part = "feed_id IS NULL";
3546                         } else if ($feed == 0 && $cat_view) { // uncategorized
3547                                 $query_strategy_part = "cat_id IS NULL";
3548                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3549                         } else if ($feed == -1) { // starred virtual feed
3550                                 $query_strategy_part = "marked = true";
3551                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3552                         } else if ($feed == -2) { // published virtual feed OR labels category
3553
3554                                 if (!$cat_view) {
3555                                         $query_strategy_part = "published = true";
3556                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3557                                 } else {
3558                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3559
3560                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3561
3562                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
3563                                                 ttrss_user_labels2.article_id = ref_id";
3564
3565                                 }
3566
3567                         } else if ($feed == -3) { // fresh virtual feed
3568                                 $query_strategy_part = "unread = true AND score >= 0";
3569
3570                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
3571
3572                                 if (DB_TYPE == "pgsql") {
3573                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
3574                                 } else {
3575                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
3576                                 }
3577
3578                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3579                         } else if ($feed == -4) { // all articles virtual feed
3580                                 $query_strategy_part = "true";
3581                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3582                         } else if ($feed <= -10) { // labels
3583                                 $label_id = -$feed - 11;
3584
3585                                 $query_strategy_part = "label_id = '$label_id' AND
3586                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
3587                                         ttrss_user_labels2.article_id = ref_id";
3588
3589                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3590                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3591
3592                         } else {
3593                                 $query_strategy_part = "id > 0"; // dumb
3594                         }
3595
3596                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3597                                 $date_sort_field = "updated";
3598                         } else {
3599                                 $date_sort_field = "date_entered";
3600                         }
3601
3602                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
3603                                 $order_by = "$date_sort_field";
3604                         } else {
3605                                 $order_by = "$date_sort_field DESC";
3606                         }
3607
3608                         if ($view_mode != "noscores") {
3609                                 $order_by = "score DESC, $order_by";
3610                         }
3611
3612                         if ($override_order) {
3613                                 $order_by = $override_order;
3614                         }
3615
3616                         $feed_title = "";
3617
3618                         if ($search) {
3619                                 $feed_title = "Search results";
3620                         } else {
3621                                 if ($cat_view) {
3622                                         $feed_title = getCategoryTitle($link, $feed);
3623                                 } else {
3624                                         if ((int)$feed == $feed && $feed > 0) {
3625                                                 $result = db_query($link, "SELECT title,site_url,last_error
3626                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
3627
3628                                                 $feed_title = db_fetch_result($result, 0, "title");
3629                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
3630                                                 $last_error = db_fetch_result($result, 0, "last_error");
3631                                         } else {
3632                                                 $feed_title = getFeedTitle($link, $feed);
3633                                         }
3634                                 }
3635                         }
3636
3637                         $content_query_part = "content as content_preview,";
3638
3639                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
3640
3641                                 if ($feed >= 0) {
3642                                         $feed_kind = "Feeds";
3643                                 } else {
3644                                         $feed_kind = "Labels";
3645                                 }
3646
3647                                 if ($limit_query_part) {
3648                                         $offset_query_part = "OFFSET $offset";
3649                                 }
3650
3651                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
3652                                         if (!$override_order) {
3653                                                 $order_by = "ttrss_feeds.title, $order_by";
3654                                         }
3655                                 }
3656
3657                                 if ($feed != "0") {
3658                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
3659                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
3660
3661                                 } else {
3662                                         $from_qpart = "ttrss_entries,ttrss_user_entries$ext_tables_part
3663                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
3664                                 }
3665
3666                                 $query = "SELECT DISTINCT
3667                                                 date_entered,
3668                                                 guid,
3669                                                 ttrss_entries.id,ttrss_entries.title,
3670                                                 updated,
3671                                                 note,
3672                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
3673                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3674                                                 $vfeed_query_part
3675                                                 $content_query_part
3676                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3677                                                 author,score
3678                                         FROM
3679                                                 $from_qpart
3680                                         WHERE
3681                                         $feed_check_qpart
3682                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
3683                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
3684                                         $search_query_part
3685                                         $filter_query_part
3686                                         $view_query_part
3687                                         $query_strategy_part ORDER BY $order_by
3688                                         $limit_query_part $offset_query_part";
3689
3690                                 if ($_REQUEST["debug"]) print $query;
3691
3692                                 $result = db_query($link, $query);
3693
3694                         } else {
3695                                 // browsing by tag
3696
3697                                 $feed_kind = "Tags";
3698
3699                                 $result = db_query($link, "SELECT DISTINCT
3700                                         date_entered,
3701                                         guid,
3702                                         note,
3703                                         ttrss_entries.id as id,title,
3704                                         updated,
3705                                         unread,feed_id,orig_feed_id,
3706                                         marked,link,last_read,
3707                                         ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3708                                         $vfeed_query_part
3709                                         $content_query_part
3710                                         ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3711                                         score
3712                                         FROM
3713                                                 ttrss_entries,ttrss_user_entries,ttrss_tags
3714                                         WHERE
3715                                                 ref_id = ttrss_entries.id AND
3716                                                 ttrss_user_entries.owner_uid = '$owner_uid' AND
3717                                                 post_int_id = int_id AND tag_name = '$feed' AND
3718                                                 $view_query_part
3719                                                 $search_query_part
3720                                                 $query_strategy_part ORDER BY $order_by
3721                                         $limit_query_part");
3722                         }
3723
3724                         return array($result, $feed_title, $feed_site_url, $last_error);
3725
3726         }
3727
3728         function generate_syndicated_feed($link, $owner_uid, $feed, $is_cat,
3729                 $limit, $search, $search_mode, $match_on, $view_mode = false) {
3730
3731                 require_once "lib/MiniTemplator.class.php";
3732
3733                 $note_style =   "background-color : #fff7d5;
3734                         border-width : 1px; ".
3735                         "padding : 5px; border-style : dashed; border-color : #e7d796;".
3736                         "margin-bottom : 1em; color : #9a8c59;";
3737
3738                 if (!$limit) $limit = 30;
3739
3740                 if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3741                         $date_sort_field = "updated";
3742                 } else {
3743                         $date_sort_field = "date_entered";
3744                 }
3745
3746                 $qfh_ret = queryFeedHeadlines($link, $feed,
3747                         $limit, $view_mode, $is_cat, $search, $search_mode,
3748                         $match_on, "$date_sort_field DESC", 0, $owner_uid);
3749
3750                 $result = $qfh_ret[0];
3751                 $feed_title = htmlspecialchars($qfh_ret[1]);
3752                 $feed_site_url = $qfh_ret[2];
3753                 $last_error = $qfh_ret[3];
3754
3755                 $feed_self_url = get_self_url_prefix() .
3756                         "/backend.php?op=rss&id=-2&key=" .
3757                         get_feed_access_key($link, -2, false);
3758
3759                 if (!$feed_site_url) $feed_site_url = get_self_url_prefix();
3760
3761                 $tpl = new MiniTemplator;
3762
3763                 $tpl->readTemplateFromFile("templates/generated_feed.txt");
3764
3765                 $tpl->setVariable('FEED_TITLE', $feed_title);
3766                 $tpl->setVariable('VERSION', VERSION);
3767                 $tpl->setVariable('FEED_URL', htmlspecialchars($feed_self_url));
3768
3769                 if (PUBSUBHUBBUB_HUB && $feed == -2) {
3770                         $tpl->setVariable('HUB_URL', htmlspecialchars(PUBSUBHUBBUB_HUB));
3771                         $tpl->addBlock('feed_hub');
3772                 }
3773
3774                 $tpl->setVariable('SELF_URL', htmlspecialchars(get_self_url_prefix()));
3775
3776                 while ($line = db_fetch_assoc($result)) {
3777                         $tpl->setVariable('ARTICLE_ID', htmlspecialchars($line['link']));
3778                         $tpl->setVariable('ARTICLE_LINK', htmlspecialchars($line['link']));
3779                         $tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($line['title']));
3780                         $tpl->setVariable('ARTICLE_EXCERPT',
3781                                 truncate_string(strip_tags($line["content_preview"]), 100, '...'));
3782
3783                         $content = sanitize_rss($link, $line["content_preview"], false, $owner_uid);
3784
3785                         if ($line['note']) {
3786                                 $content = "<div style=\"$note_style\">Article note: " . $line['note'] . "</div>" .
3787                                         $content;
3788                         }
3789
3790                         $tpl->setVariable('ARTICLE_CONTENT', $content);
3791
3792                         $tpl->setVariable('ARTICLE_UPDATED', date('c', strtotime($line["updated"])));
3793                         $tpl->setVariable('ARTICLE_AUTHOR', htmlspecialchars($line['author']));
3794
3795                         $tags = get_article_tags($link, $line["id"], $owner_uid);
3796
3797                         foreach ($tags as $tag) {
3798                                 $tpl->setVariable('ARTICLE_CATEGORY', htmlspecialchars($tag));
3799                                 $tpl->addBlock('category');
3800                         }
3801
3802                         $enclosures = get_article_enclosures($link, $line["id"]);
3803
3804                         foreach ($enclosures as $e) {
3805                                 $type = htmlspecialchars($e['content_type']);
3806                                 $url = htmlspecialchars($e['content_url']);
3807                                 $length = $e['duration'];
3808
3809                                 $tpl->setVariable('ARTICLE_ENCLOSURE_URL', $url);
3810                                 $tpl->setVariable('ARTICLE_ENCLOSURE_TYPE', $type);
3811                                 $tpl->setVariable('ARTICLE_ENCLOSURE_LENGTH', $length);
3812
3813                                 $tpl->addBlock('enclosure');
3814                         }
3815
3816                         $tpl->addBlock('entry');
3817                 }
3818
3819                 $tmp = "";
3820
3821                 $tpl->addBlock('feed');
3822                 $tpl->generateOutputToString($tmp);
3823
3824                 print $tmp;
3825         }
3826
3827         function getCategoryTitle($link, $cat_id) {
3828
3829                 if ($cat_id == -1) {
3830                         return __("Special");
3831                 } else if ($cat_id == -2) {
3832                         return __("Labels");
3833                 } else {
3834
3835                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
3836                                 id = '$cat_id'");
3837
3838                         if (db_num_rows($result) == 1) {
3839                                 return db_fetch_result($result, 0, "title");
3840                         } else {
3841                                 return "Uncategorized";
3842                         }
3843                 }
3844         }
3845
3846         function sanitize_rss($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
3847                 global $purifier;
3848
3849                 if (!$owner) $owner = $_SESSION["uid"];
3850
3851                 $res = trim($str); if (!$res) return '';
3852
3853 //              if (get_pref($link, "STRIP_UNSAFE_TAGS", $owner) || $force_strip_tags) {
3854                 $res = $purifier->purify($res);
3855 //              }
3856
3857                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
3858                         $res = preg_replace('/<img[^>]+>/is', '', $res);
3859                 }
3860
3861                 if (strpos($res, "href=") === false)
3862                         $res = rewrite_urls($res);
3863
3864                 $charset_hack = '<head>
3865                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
3866                 </head>';
3867
3868                 $res = trim($res); if (!$res) return '';
3869
3870                 libxml_use_internal_errors(true);
3871
3872                 $doc = new DOMDocument();
3873                 $doc->loadHTML($charset_hack . $res);
3874                 $xpath = new DOMXPath($doc);
3875
3876                 $entries = $xpath->query('(//a[@href]|//img[@src])');
3877                 $br_inserted = 0;
3878
3879                 foreach ($entries as $entry) {
3880
3881                         if ($site_url) {
3882
3883                                 if ($entry->hasAttribute('href'))
3884                                         $entry->setAttribute('href',
3885                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
3886
3887                                 if ($entry->hasAttribute('src'))
3888                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
3889                                                 $entry->setAttribute('src',
3890                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
3891                         }
3892
3893                         if (strtolower($entry->nodeName) == "a") {
3894                                 $entry->setAttribute("target", "_blank");
3895                         }
3896
3897                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
3898                                 $br = $doc->createElement("br");
3899
3900                                 if ($entry->parentNode->nextSibling) {
3901                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
3902                                         $br_inserted = 1;
3903                                 }
3904
3905                         }
3906                 }
3907
3908                 $node = $doc->getElementsByTagName('body')->item(0);
3909
3910                 return $doc->saveXML($node);
3911         }
3912
3913         /**
3914          * Send by mail a digest of last articles.
3915          *
3916          * @param mixed $link The database connection.
3917          * @param integer $limit The maximum number of articles by digest.
3918          * @return boolean Return false if digests are not enabled.
3919          */
3920         function send_headlines_digests($link, $limit = 100) {
3921
3922                 if (!DIGEST_ENABLE) return false;
3923
3924                 $user_limit = DIGEST_EMAIL_LIMIT;
3925                 $days = 1;
3926
3927                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
3928
3929                 if (DB_TYPE == "pgsql") {
3930                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
3931                 } else if (DB_TYPE == "mysql") {
3932                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
3933                 }
3934
3935                 $result = db_query($link, "SELECT id,email FROM ttrss_users
3936                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
3937
3938                 while ($line = db_fetch_assoc($result)) {
3939
3940                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
3941                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
3942
3943                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
3944
3945                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
3946                                 $digest = $tuple[0];
3947                                 $headlines_count = $tuple[1];
3948                                 $affected_ids = $tuple[2];
3949                                 $digest_text = $tuple[3];
3950
3951                                 if ($headlines_count > 0) {
3952
3953                                         $mail = new PHPMailer();
3954
3955                                         $mail->PluginDir = "lib/phpmailer/";
3956                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
3957
3958                                         $mail->CharSet = "UTF-8";
3959
3960                                         $mail->From = DIGEST_FROM_ADDRESS;
3961                                         $mail->FromName = DIGEST_FROM_NAME;
3962                                         $mail->AddAddress($line["email"], $line["login"]);
3963
3964                                         if (DIGEST_SMTP_HOST) {
3965                                                 $mail->Host = DIGEST_SMTP_HOST;
3966                                                 $mail->Mailer = "smtp";
3967                                                 $mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
3968                                                 $mail->Username = DIGEST_SMTP_LOGIN;
3969                                                 $mail->Password = DIGEST_SMTP_PASSWORD;
3970                                         }
3971
3972                                         $mail->IsHTML(true);
3973                                         $mail->Subject = DIGEST_SUBJECT;
3974                                         $mail->Body = $digest;
3975                                         $mail->AltBody = $digest_text;
3976
3977                                         $rc = $mail->Send();
3978
3979                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
3980
3981                                         print "RC=$rc\n";
3982
3983                                         if ($rc && $do_catchup) {
3984                                                 print "Marking affected articles as read...\n";
3985                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
3986                                         }
3987                                 } else {
3988                                         print "No headlines\n";
3989                                 }
3990
3991                                 db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
3992                                         WHERE id = " . $line["id"]);
3993                         }
3994                 }
3995
3996                 print "All done.\n";
3997
3998         }
3999
4000         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
4001
4002                 require_once "lib/MiniTemplator.class.php";
4003
4004                 $tpl = new MiniTemplator;
4005                 $tpl_t = new MiniTemplator;
4006
4007                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
4008                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
4009
4010                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
4011                 $tpl->setVariable('CUR_TIME', date('G:i'));
4012
4013                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
4014                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
4015
4016                 $affected_ids = array();
4017
4018                 if (DB_TYPE == "pgsql") {
4019                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
4020                 } else if (DB_TYPE == "mysql") {
4021                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
4022                 }
4023
4024                 $result = db_query($link, "SELECT ttrss_entries.title,
4025                                 ttrss_feeds.title AS feed_title,
4026                                 date_updated,
4027                                 ttrss_user_entries.ref_id,
4028                                 link,
4029                                 SUBSTRING(content, 1, 120) AS excerpt,
4030                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4031                         FROM
4032                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
4033                         WHERE
4034                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
4035                                 AND include_in_digest = true
4036                                 AND $interval_query
4037                                 AND ttrss_user_entries.owner_uid = $user_id
4038                                 AND unread = true
4039                         ORDER BY ttrss_feeds.title, date_updated DESC
4040                         LIMIT $limit");
4041
4042                 $cur_feed_title = "";
4043
4044                 $headlines_count = db_num_rows($result);
4045
4046                 $headlines = array();
4047
4048                 while ($line = db_fetch_assoc($result)) {
4049                         array_push($headlines, $line);
4050                 }
4051
4052                 for ($i = 0; $i < sizeof($headlines); $i++) {
4053
4054                         $line = $headlines[$i];
4055
4056                         array_push($affected_ids, $line["ref_id"]);
4057
4058                         $updated = make_local_datetime($link, $line['last_updated'], false,
4059                                 $user_id);
4060
4061                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
4062                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
4063                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
4064                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
4065                         $tpl->setVariable('ARTICLE_EXCERPT',
4066                                 truncate_string(strip_tags($line["excerpt"]), 100));
4067
4068                         $tpl->addBlock('article');
4069
4070                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
4071                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
4072                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
4073                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
4074 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
4075 //                              truncate_string(strip_tags($line["excerpt"]), 100));
4076
4077                         $tpl_t->addBlock('article');
4078
4079                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
4080                                 $tpl->addBlock('feed');
4081                                 $tpl_t->addBlock('feed');
4082                         }
4083
4084                 }
4085
4086                 $tpl->addBlock('digest');
4087                 $tpl->generateOutputToString($tmp);
4088
4089                 $tpl_t->addBlock('digest');
4090                 $tpl_t->generateOutputToString($tmp_t);
4091
4092                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
4093         }
4094
4095         function check_for_update($link) {
4096                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
4097                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
4098
4099                         $version_data = @fetch_file_contents($version_url);
4100
4101                         if ($version_data) {
4102                                 $version_data = json_decode($version_data, true);
4103                                 if ($version_data && $version_data['version']) {
4104
4105                                         if (version_compare(VERSION, $version_data['version']) == -1) {
4106                                                 return $version_data;
4107                                         }
4108                                 }
4109                         }
4110                 }
4111                 return false;
4112         }
4113
4114         function markArticlesById($link, $ids, $cmode) {
4115
4116                 $tmp_ids = array();
4117
4118                 foreach ($ids as $id) {
4119                         array_push($tmp_ids, "ref_id = '$id'");
4120                 }
4121
4122                 $ids_qpart = join(" OR ", $tmp_ids);
4123
4124                 if ($cmode == 0) {
4125                         db_query($link, "UPDATE ttrss_user_entries SET
4126                         marked = false,last_read = NOW()
4127                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4128                 } else if ($cmode == 1) {
4129                         db_query($link, "UPDATE ttrss_user_entries SET
4130                         marked = true
4131                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4132                 } else {
4133                         db_query($link, "UPDATE ttrss_user_entries SET
4134                         marked = NOT marked,last_read = NOW()
4135                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4136                 }
4137         }
4138
4139         function publishArticlesById($link, $ids, $cmode) {
4140
4141                 $tmp_ids = array();
4142
4143                 foreach ($ids as $id) {
4144                         array_push($tmp_ids, "ref_id = '$id'");
4145                 }
4146
4147                 $ids_qpart = join(" OR ", $tmp_ids);
4148
4149                 if ($cmode == 0) {
4150                         db_query($link, "UPDATE ttrss_user_entries SET
4151                         published = false,last_read = NOW()
4152                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4153                 } else if ($cmode == 1) {
4154                         db_query($link, "UPDATE ttrss_user_entries SET
4155                         published = true
4156                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4157                 } else {
4158                         db_query($link, "UPDATE ttrss_user_entries SET
4159                         published = NOT published,last_read = NOW()
4160                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4161                 }
4162
4163                 if (PUBSUBHUBBUB_HUB) {
4164                         $rss_link = get_self_url_prefix() .
4165                                 "/backend.php?op=rss&id=-2&key=" .
4166                                 get_feed_access_key($link, -2, false);
4167
4168                         $p = new Publisher(PUBSUBHUBBUB_HUB);
4169
4170                         $pubsub_result = $p->publish_update($rss_link);
4171                 }
4172         }
4173
4174         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
4175
4176                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4177                 if (count($ids) == 0) return;
4178
4179                 $tmp_ids = array();
4180
4181                 foreach ($ids as $id) {
4182                         array_push($tmp_ids, "ref_id = '$id'");
4183                 }
4184
4185                 $ids_qpart = join(" OR ", $tmp_ids);
4186
4187                 if ($cmode == 0) {
4188                         db_query($link, "UPDATE ttrss_user_entries SET
4189                         unread = false,last_read = NOW()
4190                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4191                 } else if ($cmode == 1) {
4192                         db_query($link, "UPDATE ttrss_user_entries SET
4193                         unread = true
4194                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4195                 } else {
4196                         db_query($link, "UPDATE ttrss_user_entries SET
4197                         unread = NOT unread,last_read = NOW()
4198                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4199                 }
4200
4201                 /* update ccache */
4202
4203                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
4204                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4205
4206                 while ($line = db_fetch_assoc($result)) {
4207                         ccache_update($link, $line["feed_id"], $owner_uid);
4208                 }
4209         }
4210
4211         function catchupArticleById($link, $id, $cmode) {
4212
4213                 if ($cmode == 0) {
4214                         db_query($link, "UPDATE ttrss_user_entries SET
4215                         unread = false,last_read = NOW()
4216                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4217                 } else if ($cmode == 1) {
4218                         db_query($link, "UPDATE ttrss_user_entries SET
4219                         unread = true
4220                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4221                 } else {
4222                         db_query($link, "UPDATE ttrss_user_entries SET
4223                         unread = NOT unread,last_read = NOW()
4224                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4225                 }
4226
4227                 $feed_id = getArticleFeed($link, $id);
4228                 ccache_update($link, $feed_id, $_SESSION["uid"]);
4229         }
4230
4231         function make_guid_from_title($title) {
4232                 return preg_replace("/[ \"\',.:;]/", "-",
4233                         mb_strtolower(strip_tags($title), 'utf-8'));
4234         }
4235
4236         function format_headline_subtoolbar($link, $feed_site_url, $feed_title,
4237                         $feed_id, $is_cat, $search, $match_on,
4238                         $search_mode, $view_mode, $error) {
4239
4240                 $page_prev_link = "viewFeedGoPage(-1)";
4241                 $page_next_link = "viewFeedGoPage(1)";
4242                 $page_first_link = "viewFeedGoPage(0)";
4243
4244                 $catchup_page_link = "catchupPage()";
4245                 $catchup_feed_link = "catchupCurrentFeed()";
4246                 $catchup_sel_link = "catchupSelection()";
4247
4248                 $archive_sel_link = "archiveSelection()";
4249                 $delete_sel_link = "deleteSelection()";
4250
4251                 $sel_all_link = "selectArticles('all')";
4252                 $sel_unread_link = "selectArticles('unread')";
4253                 $sel_none_link = "selectArticles('none')";
4254                 $sel_inv_link = "selectArticles('invert')";
4255
4256                 $tog_unread_link = "selectionToggleUnread()";
4257                 $tog_marked_link = "selectionToggleMarked()";
4258                 $tog_published_link = "selectionTogglePublished()";
4259
4260                 $reply = "<div id=\"subtoolbar_main\">";
4261
4262                 $reply .= __('Select:')."
4263                         <a href=\"#\" onclick=\"$sel_all_link\">".__('All')."</a>,
4264                         <a href=\"#\" onclick=\"$sel_unread_link\">".__('Unread')."</a>,
4265                         <a href=\"#\" onclick=\"$sel_inv_link\">".__('Invert')."</a>,
4266                         <a href=\"#\" onclick=\"$sel_none_link\">".__('None')."</a></li>";
4267
4268                 $reply .= " ";
4269
4270                 $reply .= "<select dojoType=\"dijit.form.Select\"
4271                         onchange=\"headlineActionsChange(this)\">";
4272                 $reply .= "<option value=\"false\">".__('Actions...')."</option>";
4273
4274                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection toggle:')."</option>";
4275
4276                 $reply .= "<option value=\"$tog_unread_link\">".__('Unread')."</option>
4277                         <option value=\"$tog_marked_link\">".__('Starred')."</option>
4278                         <option value=\"$tog_published_link\">".__('Published')."</option>";
4279
4280                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection:')."</option>";
4281
4282                 $reply .= "<option value=\"$catchup_sel_link\">".__('Mark as read')."</option>";
4283
4284                 if ($feed_id != "0") {
4285                         $reply .= "<option value=\"$archive_sel_link\">".__('Archive')."</option>";
4286                 } else {
4287                         $reply .= "<option value=\"$archive_sel_link\">".__('Move back')."</option>";
4288                         $reply .= "<option value=\"$delete_sel_link\">".__('Delete')."</option>";
4289
4290                 }
4291
4292                 $reply .= "<option value=\"emailArticle(false)\">".__('Forward by email').
4293                         "</option>";
4294
4295                 if ($is_cat) $cat_q = "&is_cat=$is_cat";
4296
4297                 if ($search) {
4298                         $search_q = "&q=$search&m=$match_on&smode=$search_mode";
4299                 } else {
4300                         $search_q = "";
4301                 }
4302
4303                 $rss_link = htmlspecialchars(get_self_url_prefix() .
4304                         "/backend.php?op=rss&id=$feed_id$cat_q$search_q");
4305
4306                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Feed:')."</option>";
4307
4308                 $reply .= "<option value=\"catchupPage()\">".__('Mark as read')."</option>";
4309
4310                 $reply .= "<option value=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">".__('View as RSS')."</option>";
4311
4312                 $reply .= "</select>";
4313
4314                 $reply .= "</div>";
4315
4316                 $reply .= "<div id=\"subtoolbar_ftitle\">";
4317
4318                 if ($feed_site_url) {
4319                         $target = "target=\"_blank\"";
4320                         $reply .= "<a title=\"".__("Visit the website")."\" $target href=\"$feed_site_url\">".
4321                                 truncate_string($feed_title,30)."</a>";
4322
4323                         if ($error) {
4324                                 $reply .= " (<span class=\"error\" title=\"$error\">Error</span>)";
4325                         }
4326
4327                 } else {
4328                         if ($feed_id < -10) {
4329                                 $label_id = -11-$feed_id;
4330
4331                                 $result = db_query($link, "SELECT fg_color, bg_color
4332                                         FROM ttrss_labels2 WHERE id = '$label_id' AND owner_uid = " .
4333                                         $_SESSION["uid"]);
4334
4335                                 if (db_num_rows($result) != 0) {
4336                                         $fg_color = db_fetch_result($result, 0, "fg_color");
4337                                         $bg_color = db_fetch_result($result, 0, "bg_color");
4338
4339                                         $reply .= "<span style=\"background : $bg_color; color : $fg_color\" >";
4340                                         $reply .= $feed_title;
4341                                         $reply .= "</span>";
4342                                 } else {
4343                                         $reply .= $feed_title;
4344                                 }
4345
4346                         } else {
4347                                 $reply .= $feed_title;
4348                         }
4349                 }
4350
4351                 $reply .= "
4352                         <a href=\"#\"
4353                                 title=\"".__("View as RSS feed")."\"
4354                                 onclick=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">
4355                                 <img class=\"noborder\" style=\"vertical-align : middle\" src=\"images/feed-icon-12x12.png\"></a>";
4356
4357                 $reply .= "</div>";
4358
4359                 return $reply;
4360         }
4361
4362         function outputFeedList($link, $special = true) {
4363
4364                 $feedlist = array();
4365
4366                 $enable_cats = get_pref($link, 'ENABLE_FEED_CATS');
4367
4368                 $feedlist['identifier'] = 'id';
4369                 $feedlist['label'] = 'name';
4370                 $feedlist['items'] = array();
4371
4372                 $owner_uid = $_SESSION["uid"];
4373
4374                 /* virtual feeds */
4375
4376                 if ($special) {
4377
4378                         if ($enable_cats) {
4379                                 $cat_hidden = get_pref($link, "_COLLAPSED_SPECIAL");
4380                                 $cat = feedlist_init_cat($link, -1, $cat_hidden);
4381                         } else {
4382                                 $cat['items'] = array();
4383                         }
4384
4385                         foreach (array(-4, -3, -1, -2, 0) as $i) {
4386                                 array_push($cat['items'], feedlist_init_feed($link, $i));
4387                         }
4388
4389                         if ($enable_cats) {
4390                                 array_push($feedlist['items'], $cat);
4391                         } else {
4392                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4393                         }
4394
4395                         $result = db_query($link, "SELECT * FROM
4396                                 ttrss_labels2 WHERE owner_uid = '$owner_uid' ORDER by caption");
4397
4398                         if (db_num_rows($result) > 0) {
4399
4400                                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
4401                                         $cat_hidden = get_pref($link, "_COLLAPSED_LABELS");
4402                                         $cat = feedlist_init_cat($link, -2, $cat_hidden);
4403                                 } else {
4404                                         $cat['items'] = array();
4405                                 }
4406
4407                                 while ($line = db_fetch_assoc($result)) {
4408
4409                                         $label_id = -$line['id'] - 11;
4410                                         $count = getFeedUnread($link, $label_id);
4411
4412                                         $feed = feedlist_init_feed($link, $label_id, false, $count);
4413
4414                                         $feed['fg_color'] = $line['fg_color'];
4415                                         $feed['bg_color'] = $line['bg_color'];
4416
4417                                         array_push($cat['items'], $feed);
4418                                 }
4419
4420                                 if ($enable_cats) {
4421                                         array_push($feedlist['items'], $cat);
4422                                 } else {
4423                                         $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4424                                 }
4425                         }
4426                 }
4427
4428 /*              if (get_pref($link, 'ENABLE_FEED_CATS')) {
4429                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4430                                 $order_by_qpart = "order_id,category,unread DESC,title";
4431                         } else {
4432                                 $order_by_qpart = "order_id,category,title";
4433                         }
4434                 } else {
4435                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4436                                 $order_by_qpart = "unread DESC,title";
4437                         } else {
4438                                 $order_by_qpart = "title";
4439                         }
4440                 } */
4441
4442                 /* real feeds */
4443
4444                 if ($enable_cats)
4445                         $order_by_qpart = "ttrss_feed_categories.order_id,category,
4446                                 ttrss_feeds.order_id,title";
4447                 else
4448                         $order_by_qpart = "title";
4449
4450                 $age_qpart = getMaxAgeSubquery();
4451
4452                 $query = "SELECT ttrss_feeds.id, ttrss_feeds.title,
4453                         ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated_noms,
4454                         cat_id,last_error,
4455                         ttrss_feed_categories.title AS category,
4456                         ttrss_feed_categories.collapsed,
4457                         value AS unread
4458                         FROM ttrss_feeds LEFT JOIN ttrss_feed_categories
4459                                 ON (ttrss_feed_categories.id = cat_id)
4460                         LEFT JOIN ttrss_counters_cache
4461                                 ON
4462                                         (ttrss_feeds.id = feed_id)
4463                         WHERE
4464                                 ttrss_feeds.owner_uid = '$owner_uid'
4465                         ORDER BY $order_by_qpart";
4466
4467                 $result = db_query($link, $query);
4468
4469                 $actid = $_REQUEST["actid"];
4470
4471                 if (db_num_rows($result) > 0) {
4472
4473                         $category = "";
4474
4475                         if (!$enable_cats)
4476                                 $cat['items'] = array();
4477                         else
4478                                 $cat = false;
4479
4480                         while ($line = db_fetch_assoc($result)) {
4481
4482                                 $feed = htmlspecialchars(trim($line["title"]));
4483
4484                                 if (!$feed) $feed = "[Untitled]";
4485
4486                                 $feed_id = $line["id"];
4487                                 $unread = $line["unread"];
4488
4489                                 $cat_id = $line["cat_id"];
4490                                 $tmp_category = $line["category"];
4491                                 if (!$tmp_category) $tmp_category = __("Uncategorized");
4492
4493                                 if ($category != $tmp_category && $enable_cats) {
4494
4495                                         $category = $tmp_category;
4496
4497                                         $collapsed = sql_bool_to_bool($line["collapsed"]);
4498
4499                                         // workaround for NULL category
4500                                         if ($category == __("Uncategorized")) {
4501                                                 $collapsed = get_pref($link, "_COLLAPSED_UNCAT");
4502                                         }
4503
4504                                         if ($cat) array_push($feedlist['items'], $cat);
4505
4506                                         $cat = feedlist_init_cat($link, $cat_id, $collapsed);
4507                                 }
4508
4509                                 $updated = make_local_datetime($link, $line["updated_noms"], false);
4510
4511                                 array_push($cat['items'], feedlist_init_feed($link, $feed_id,
4512                                         $feed, $unread, $line['last_error'], $updated));
4513                         }
4514
4515                         if ($enable_cats) {
4516                                 array_push($feedlist['items'], $cat);
4517                         } else {
4518                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4519                         }
4520
4521                 }
4522
4523                 return $feedlist;
4524         }
4525
4526         function get_article_tags($link, $id, $owner_uid = 0) {
4527
4528                 global $memcache;
4529
4530                 $a_id = db_escape_string($id);
4531
4532                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4533
4534                 $query = "SELECT DISTINCT tag_name,
4535                         owner_uid as owner FROM
4536                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
4537                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
4538
4539                 $obj_id = md5("TAGS:$owner_uid:$id");
4540                 $tags = array();
4541
4542                 if ($memcache && $obj = $memcache->get($obj_id)) {
4543                         $tags = $obj;
4544                 } else {
4545                         /* check cache first */
4546
4547                         $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
4548                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4549
4550                         $tag_cache = db_fetch_result($result, 0, "tag_cache");
4551
4552                         if ($tag_cache) {
4553                                 $tags = explode(",", $tag_cache);
4554                         } else {
4555
4556                                 /* do it the hard way */
4557
4558                                 $tmp_result = db_query($link, $query);
4559
4560                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
4561                                         array_push($tags, $tmp_line["tag_name"]);
4562                                 }
4563
4564                                 /* update the cache */
4565
4566                                 $tags_str = db_escape_string(join(",", $tags));
4567
4568                                 db_query($link, "UPDATE ttrss_user_entries
4569                                         SET tag_cache = '$tags_str' WHERE ref_id = '$id'
4570                                         AND owner_uid = " . $_SESSION["uid"]);
4571                         }
4572
4573                         if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);
4574                 }
4575
4576                 return $tags;
4577         }
4578
4579         function trim_value(&$value) {
4580                 $value = trim($value);
4581         }
4582
4583         function trim_array($array) {
4584                 $tmp = $array;
4585                 array_walk($tmp, 'trim_value');
4586                 return $tmp;
4587         }
4588
4589         function tag_is_valid($tag) {
4590                 if ($tag == '') return false;
4591                 if (preg_match("/^[0-9]*$/", $tag)) return false;
4592                 if (mb_strlen($tag) > 250) return false;
4593
4594                 if (function_exists('iconv')) {
4595                         $tag = iconv("utf-8", "utf-8", $tag);
4596                 }
4597
4598                 if (!$tag) return false;
4599
4600                 return true;
4601         }
4602
4603         function render_login_form($link, $mobile = 0) {
4604                 switch ($mobile) {
4605                 case 0:
4606                         require_once "login_form.php";
4607                         break;
4608                 case 1:
4609                         require_once "mobile/login_form.php";
4610                         break;
4611                 case 2:
4612                         require_once "mobile/classic/login_form.php";
4613                 }
4614         }
4615
4616         // from http://developer.apple.com/internet/safari/faq.html
4617         function no_cache_incantation() {
4618                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
4619                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
4620                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
4621                 header("Cache-Control: post-check=0, pre-check=0", false);
4622                 header("Pragma: no-cache"); // HTTP/1.0
4623         }
4624
4625         function format_warning($msg, $id = "") {
4626                 global $link;
4627                 return "<div class=\"warning\" id=\"$id\">
4628                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4629         }
4630
4631         function format_notice($msg, $id = "") {
4632                 global $link;
4633                 return "<div class=\"notice\" id=\"$id\">
4634                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
4635         }
4636
4637         function format_error($msg, $id = "") {
4638                 global $link;
4639                 return "<div class=\"error\" id=\"$id\">
4640                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4641         }
4642
4643         function print_notice($msg) {
4644                 return print format_notice($msg);
4645         }
4646
4647         function print_warning($msg) {
4648                 return print format_warning($msg);
4649         }
4650
4651         function print_error($msg) {
4652                 return print format_error($msg);
4653         }
4654
4655
4656         function T_sprintf() {
4657                 $args = func_get_args();
4658                 return vsprintf(__(array_shift($args)), $args);
4659         }
4660
4661         function format_inline_player($link, $url, $ctype) {
4662
4663                 $entry = "";
4664
4665                 if (strpos($ctype, "audio/") === 0) {
4666
4667                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
4668                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
4669                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
4670
4671                                 $id = 'AUDIO-' . uniqid();
4672
4673                                 $entry .= "<audio id=\"$id\"\">
4674                                         <source src=\"$url\"></source>
4675                                         </audio>";
4676
4677                                 $entry .= "<span onclick=\"player(this)\"
4678                                         title=\"".__("Click to play")."\" status=\"0\"
4679                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
4680
4681                         } else {
4682
4683                                 $entry .= "<object type=\"application/x-shockwave-flash\"
4684                                         data=\"lib/button/musicplayer.swf?song_url=$url\"
4685                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
4686                                         <param name=\"movie\"
4687                                                 value=\"lib/button/musicplayer.swf?song_url=$url\" />
4688                                         </object>";
4689                         }
4690                 }
4691
4692                 $filename = substr($url, strrpos($url, "/")+1);
4693
4694                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4695                         $filename . " (" . $ctype . ")" . "</a>";
4696
4697                 return $entry;
4698         }
4699
4700         function format_article($link, $id, $mark_as_read = true, $zoom_mode = false) {
4701
4702                 $rv = array();
4703
4704                 $rv['id'] = $id;
4705
4706                 /* we can figure out feed_id from article id anyway, why do we
4707                  * pass feed_id here? let's ignore the argument :( */
4708
4709                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4710                         WHERE ref_id = '$id'");
4711
4712                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4713
4714                 $rv['feed_id'] = $feed_id;
4715
4716                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
4717
4718                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
4719                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
4720
4721                 if (db_num_rows($result) == 1) {
4722                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4723                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
4724                 } else {
4725                         $rtl_content = false;
4726                         $always_display_enclosures = false;
4727                 }
4728
4729                 if ($rtl_content) {
4730                         $rtl_tag = "dir=\"RTL\"";
4731                         $rtl_class = "RTL";
4732                 } else {
4733                         $rtl_tag = "";
4734                         $rtl_class = "";
4735                 }
4736
4737                 if ($mark_as_read) {
4738                         $result = db_query($link, "UPDATE ttrss_user_entries
4739                                 SET unread = false,last_read = NOW()
4740                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4741
4742                         ccache_update($link, $feed_id, $_SESSION["uid"]);
4743                 }
4744
4745                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
4746                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
4747                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
4748                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
4749                         num_comments,
4750                         author,
4751                         orig_feed_id,
4752                         note
4753                         FROM ttrss_entries,ttrss_user_entries
4754                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
4755
4756                 if ($result) {
4757
4758                         $line = db_fetch_assoc($result);
4759
4760                         if ($line["icon_url"]) {
4761                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
4762                         } else {
4763                                 $feed_icon = "&nbsp;";
4764                         }
4765
4766                         $feed_site_url = $line['site_url'];
4767
4768                         $num_comments = $line["num_comments"];
4769                         $entry_comments = "";
4770
4771                         if ($num_comments > 0) {
4772                                 if ($line["comments"]) {
4773                                         $comments_url = $line["comments"];
4774                                 } else {
4775                                         $comments_url = $line["link"];
4776                                 }
4777                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
4778                         } else {
4779                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
4780                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
4781                                 }
4782                         }
4783
4784                         if ($zoom_mode) {
4785                                 header("Content-Type: text/html");
4786                                 $rv['content'] .= "<html><head>
4787                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
4788                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
4789                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
4790                                         </head><body>";
4791                         }
4792
4793                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
4794                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
4795
4796                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
4797
4798                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
4799                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
4800
4801                         $entry_author = $line["author"];
4802
4803                         if ($entry_author) {
4804                                 $entry_author = __(" - ") . $entry_author;
4805                         }
4806
4807                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
4808                                 false, true);
4809
4810                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
4811
4812                         if ($line["link"]) {
4813                                 $rv['content'] .= "<div clear='both'><a target='_blank'
4814                                         title=\"".htmlspecialchars($line['title'])."\"
4815                                         href=\"" .
4816                                         $line["link"] . "\">" .
4817                                         truncate_string($line["title"], 100) .
4818                                         "<span class='author'>$entry_author</span></a></div>";
4819                         } else {
4820                                 $rv['content'] .= "<div clear='both'>" . $line["title"] . "$entry_author</div>";
4821                         }
4822
4823                         $tags = get_article_tags($link, $id);
4824                         $tags_str = format_tags_string($tags, $id);
4825                         $tags_str_full = join(", ", $tags);
4826
4827                         if (!$tags_str_full) $tags_str_full = __("no tags");
4828
4829                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
4830
4831                         $rv['content'] .= "<div style='float : right'>
4832                                 <img src='".theme_image($link, 'images/tag.png')."'
4833                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
4834
4835                         if (!$zoom_mode) {
4836                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
4837                                         <a title=\"".__('Edit tags for this article')."\"
4838                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
4839
4840                                 $rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
4841                                         id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
4842                                         position=\"below\">$tags_str_full</div>";
4843
4844                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
4845                                                 class='tagsPic' style=\"cursor : pointer\"
4846                                                 onclick=\"postOpenInNewTab(event, $id)\"
4847                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
4848
4849                                 //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
4850
4851                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-pub-note.png')."\"
4852                                                 class='tagsPic' style=\"cursor : pointer\"
4853                                                 onclick=\"editArticleNote($id)\"
4854                                                 alt='PubNote' title='".__('Edit article note')."'>";
4855
4856                                 if (DIGEST_ENABLE) {
4857                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
4858                                                 class='tagsPic' style=\"cursor : pointer\"
4859                                                 onclick=\"emailArticle($id)\"
4860                                                 alt='Zoom' title='".__('Forward by email')."'>";
4861                                 }
4862
4863                                 if (ENABLE_TWEET_BUTTON) {
4864                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
4865                                                         class='tagsPic' style=\"cursor : pointer\"
4866                                                         onclick=\"tweetArticle($id)\"
4867                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
4868                                 }
4869
4870                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
4871                                                 class='tagsPic' style=\"cursor : pointer\"
4872                                                 onclick=\"closeArticlePanel($id)\"
4873                                                 alt='Zoom' title='".__('Close this panel')."'>";
4874
4875                         } else {
4876                                 $tags_str = strip_tags($tags_str);
4877                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
4878                         }
4879                         $rv['content'] .= "</div>";
4880                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
4881
4882                         if ($line["orig_feed_id"]) {
4883
4884                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
4885                                         WHERE id = ".$line["orig_feed_id"]);
4886
4887                                 if (db_num_rows($tmp_result) != 0) {
4888
4889                                         $rv['content'] .= "<div clear='both'>";
4890                                         $rv['content'] .= __("Originally from:");
4891
4892                                         $rv['content'] .= "&nbsp;";
4893
4894                                         $tmp_line = db_fetch_assoc($tmp_result);
4895
4896                                         $rv['content'] .= "<a target='_blank'
4897                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
4898                                                 $tmp_line['title'] . "</a>";
4899
4900                                         $rv['content'] .= "&nbsp;";
4901
4902                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
4903                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
4904
4905                                         $rv['content'] .= "</div>";
4906                                 }
4907                         }
4908
4909                         $rv['content'] .= "</div>";
4910
4911                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
4912                                 if ($line['note']) {
4913                                         $rv['content'] .= format_article_note($id, $line['note']);
4914                                 }
4915                         $rv['content'] .= "</div>";
4916
4917                         $rv['content'] .= "<div class=\"postIcon\">" .
4918                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
4919                                 href=\"".htmlspecialchars($feed_site_url)."\">".
4920                                 $feed_icon . "</a></div>";
4921
4922                         $rv['content'] .= "<div class=\"postContent\">";
4923
4924                         $article_content = sanitize_rss($link, $line["content"], false, false,
4925                                 $feed_site_url);
4926
4927                         $rv['content'] .= $article_content;
4928
4929                         $rv['content'] .= format_article_enclosures($link, $id,
4930                                 $always_display_enclosures, $article_content);
4931
4932                         $rv['content'] .= "</div>";
4933
4934                         $rv['content'] .= "</div>";
4935
4936                 }
4937
4938                 if ($zoom_mode) {
4939                         $rv['content'] .= "
4940                                 <div style=\"text-align : center\">
4941                                 <button onclick=\"return window.close()\">".
4942                                         __("Close this window")."</button></div>";
4943                         $rv['content'] .= "</body></html>";
4944                 }
4945
4946                 return $rv;
4947
4948         }
4949
4950         function format_headlines_list($link, $feed, $subop, $view_mode, $limit, $cat_view,
4951                                         $next_unread_feed, $offset, $vgr_last_feed = false,
4952                                         $override_order = false) {
4953
4954                 $disable_cache = false;
4955
4956                 $reply = array();
4957
4958                 $timing_info = getmicrotime();
4959
4960                 $topmost_article_ids = array();
4961
4962                 if (!$offset) $offset = 0;
4963                 if ($subop == "undefined") $subop = "";
4964
4965                 $subop_split = explode(":", $subop);
4966
4967 /*              if ($subop == "CatchupSelected") {
4968                         $ids = explode(",", db_escape_string($_REQUEST["ids"]));
4969                         $cmode = sprintf("%d", $_REQUEST["cmode"]);
4970
4971                         catchupArticlesById($link, $ids, $cmode);
4972                 } */
4973
4974                 if ($subop == "ForceUpdate" && sprintf("%d", $feed) > 0) {
4975                         update_rss_feed($link, $feed, true);
4976                 }
4977
4978                 if ($subop == "MarkAllRead")  {
4979                         catchup_feed($link, $feed, $cat_view);
4980
4981                         if (get_pref($link, 'ON_CATCHUP_SHOW_NEXT_FEED')) {
4982                                 if ($next_unread_feed) {
4983                                         $feed = $next_unread_feed;
4984                                 }
4985                         }
4986                 }
4987
4988                 if ($subop_split[0] == "MarkAllReadGR")  {
4989                         catchup_feed($link, $subop_split[1], false);
4990                 }
4991
4992                 // FIXME: might break tag display?
4993
4994                 if ($feed > 0 && !$cat_view) {
4995                         $result = db_query($link,
4996                                 "SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");
4997
4998                         if (db_num_rows($result) == 0) {
4999                                 $reply['content'] = "<div align='center'>".__('Feed not found.')."</div>";
5000                         }
5001                 }
5002
5003                 if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
5004
5005                         $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
5006                                 WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
5007
5008                         if (db_num_rows($result) == 1) {
5009                                 $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
5010                         } else {
5011                                 $rtl_content = false;
5012                         }
5013
5014                         if ($rtl_content) {
5015                                 $rtl_tag = "dir=\"RTL\"";
5016                         } else {
5017                                 $rtl_tag = "";
5018                         }
5019                 } else {
5020                         $rtl_tag = "";
5021                         $rtl_content = false;
5022                 }
5023
5024                 @$search = db_escape_string($_REQUEST["query"]);
5025
5026                 if ($search) {
5027                         $disable_cache = true;
5028                 }
5029
5030                 @$search_mode = db_escape_string($_REQUEST["search_mode"]);
5031                 @$match_on = db_escape_string($_REQUEST["match_on"]);
5032
5033                 if (!$match_on) {
5034                         $match_on = "both";
5035                 }
5036
5037                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H0", $timing_info);
5038
5039                 $qfh_ret = queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view,
5040                         $search, $search_mode, $match_on, $override_order, $offset);
5041
5042                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H1", $timing_info);
5043
5044                 $result = $qfh_ret[0];
5045                 $feed_title = $qfh_ret[1];
5046                 $feed_site_url = $qfh_ret[2];
5047                 $last_error = $qfh_ret[3];
5048
5049                 $vgroup_last_feed = $vgr_last_feed;
5050
5051                 if (!$offset) {
5052
5053                         if (db_num_rows($result) > 0) {
5054                                 $reply['toolbar'] = format_headline_subtoolbar($link, $feed_site_url,
5055                                         $feed_title,
5056                                         $feed, $cat_view, $search, $match_on, $search_mode, $view_mode,
5057                                         $last_error);
5058                         }
5059                 }
5060
5061                 $headlines_count = db_num_rows($result);
5062
5063                 if (db_num_rows($result) > 0) {
5064
5065                         $lnum = $offset;
5066
5067                         $num_unread = 0;
5068                         $cur_feed_title = '';
5069
5070                         $fresh_intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE") * 60 * 60;
5071
5072                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PS", $timing_info);
5073
5074                         while ($line = db_fetch_assoc($result)) {
5075
5076                                 $class = ($lnum % 2) ? "even" : "odd";
5077
5078                                 $id = $line["id"];
5079                                 $feed_id = $line["feed_id"];
5080
5081                                 $labels = get_article_labels($link, $id);
5082
5083                                 $labels_str = "<span id=\"HLLCTR-$id\">";
5084                                 $labels_str .= format_article_labels($labels, $id);
5085                                 $labels_str .= "</span>";
5086
5087                                 if (count($topmost_article_ids) < 3) {
5088                                         array_push($topmost_article_ids, $id);
5089                                 }
5090
5091                                 if ($line["last_read"] == "" && !sql_bool_to_bool($line["unread"])) {
5092
5093                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5094                                                 theme_image($link, 'images/updated.png')."\"
5095                                                 alt=\"Updated\">";
5096                                 } else {
5097                                         $update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\"
5098                                                 alt=\"Updated\">";
5099                                 }
5100
5101                                 if (sql_bool_to_bool($line["unread"]) &&
5102                                         time() - strtotime($line["updated_noms"]) < $fresh_intl) {
5103
5104                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5105                                                 theme_image($link, 'images/fresh_sign.png')."\" alt=\"Fresh\">";
5106                                 }
5107
5108                                 if ($line["unread"] == "t" || $line["unread"] == "1") {
5109                                         $class .= " Unread";
5110                                         ++$num_unread;
5111                                         $is_unread = true;
5112                                 } else {
5113                                         $is_unread = false;
5114                                 }
5115
5116                                 if ($line["marked"] == "t" || $line["marked"] == "1") {
5117                                         $marked_pic = "<img id=\"FMPIC-$id\"
5118                                                 src=\"".theme_image($link, 'images/mark_set.png')."\"
5119                                                 class=\"markedPic\" alt=\"Unstar article\"
5120                                                 onclick='javascript:tMark($id)'>";
5121                                 } else {
5122                                         $marked_pic = "<img id=\"FMPIC-$id\"
5123                                                 src=\"".theme_image($link, 'images/mark_unset.png')."\"
5124                                                 class=\"markedPic\" alt=\"Star article\"
5125                                                 onclick='javascript:tMark($id)'>";
5126                                 }
5127
5128                                 if ($line["published"] == "t" || $line["published"] == "1") {
5129                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5130                                                 'images/pub_set.png')."\"
5131                                                 class=\"markedPic\"
5132                                                 alt=\"Unpublish article\" onclick='javascript:tPub($id)'>";
5133                                 } else {
5134                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5135                                                 'images/pub_unset.png')."\"
5136                                                 class=\"markedPic\"
5137                                                 alt=\"Publish article\" onclick='javascript:tPub($id)'>";
5138                                 }
5139
5140 #                               $content_link = "<a target=\"_blank\" href=\"".$line["link"]."\">" .
5141 #                                       $line["title"] . "</a>";
5142
5143 #                               $content_link = "<a
5144 #                                       href=\"" . htmlspecialchars($line["link"]) . "\"
5145 #                                       onclick=\"view($id,$feed_id);\">" .
5146 #                                       $line["title"] . "</a>";
5147
5148 #                               $content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
5149 #                                       $line["title"] . "</a>";
5150
5151                                 $updated_fmt = make_local_datetime($link, $line["updated_noms"], false);
5152
5153                                 if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5154                                         $content_preview = truncate_string(strip_tags($line["content_preview"]),
5155                                                 100);
5156                                 }
5157
5158                                 $score = $line["score"];
5159
5160                                 $score_pic = theme_image($link,
5161                                         "images/" . get_score_pic($score));
5162
5163 /*                              $score_title = __("(Click to change)");
5164                                 $score_pic = "<img class='hlScorePic' src=\"images/$score_pic\"
5165                                         onclick=\"adjustArticleScore($id, $score)\" title=\"$score $score_title\">"; */
5166
5167                                 $score_pic = "<img class='hlScorePic' src=\"$score_pic\"
5168                                         title=\"$score\">";
5169
5170                                 if ($score > 500) {
5171                                         $hlc_suffix = "H";
5172                                 } else if ($score < -100) {
5173                                         $hlc_suffix = "L";
5174                                 } else {
5175                                         $hlc_suffix = "";
5176                                 }
5177
5178                                 $entry_author = $line["author"];
5179
5180                                 if ($entry_author) {
5181                                         $entry_author = " - $entry_author";
5182                                 }
5183
5184                                 $has_feed_icon = feed_has_icon($feed_id);
5185
5186                                 if ($has_feed_icon) {
5187                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5188                                 } else {
5189                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/feed-icon-12x12.png\" alt=\"\">";
5190                                 }
5191
5192                                 if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
5193
5194                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5195                                                 if ($feed_id != $vgroup_last_feed && $line["feed_title"]) {
5196
5197                                                         $cur_feed_title = $line["feed_title"];
5198                                                         $vgroup_last_feed = $feed_id;
5199
5200                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5201
5202                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5203
5204                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5205                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5206                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5207                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5208
5209                                                 }
5210                                         }
5211
5212                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5213                                                 onmouseout='postMouseOut($id)'";
5214
5215                                         $reply['content'] .= "<div class='$class' id='RROW-$id' $mouseover_attrs>";
5216
5217                                         $reply['content'] .= "<div class='hlUpdPic'>$update_pic</div>";
5218
5219                                         $reply['content'] .= "<div class='hlLeft'>";
5220
5221                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"tSR(this)\"
5222                                                         id=\"RCHK-$id\">";
5223
5224                                         $reply['content'] .= "$marked_pic";
5225                                         $reply['content'] .= "$published_pic";
5226
5227                                         $reply['content'] .= "</div>";
5228
5229                                         $reply['content'] .= "<div onclick='return hlClicked(event, $id)'
5230                                                 class=\"hlTitle\"><span class='hlContent$hlc_suffix'>";
5231                                         $reply['content'] .= "<a id=\"RTITLE-$id\"
5232                                                 href=\"" . htmlspecialchars($line["link"]) . "\"
5233                                                 onclick=\"\">" .
5234                                                 $line["title"];
5235
5236                                         if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5237                                                 if ($content_preview) {
5238                                                         $reply['content'] .= "<span class=\"contentPreview\"> - $content_preview</span>";
5239                                                 }
5240                                         }
5241
5242                                         $reply['content'] .= "</a></span>";
5243
5244                                         $reply['content'] .= $labels_str;
5245
5246                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED') &&
5247                                                 defined('_SHOW_FEED_TITLE_IN_VFEEDS')) {
5248                                                 if (@$line["feed_title"]) {
5249                                                         $reply['content'] .= "<span class=\"hlFeed\">
5250                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5251                                                                 $line["feed_title"]."</a>)
5252                                                         </span>";
5253                                                 }
5254                                         }
5255
5256                                         $reply['content'] .= "</div>";
5257
5258                                         $reply['content'] .= "<span class=\"hlUpdated\">$updated_fmt</span>";
5259                                         $reply['content'] .= "<div class=\"hlRight\">";
5260
5261                                         $reply['content'] .= $score_pic;
5262
5263                                         if ($line["feed_title"] && !get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5264
5265                                                 $reply['content'] .= "<span onclick=\"viewfeed($feed_id)\"
5266                                                         style=\"cursor : pointer\"
5267                                                         title=\"".htmlspecialchars($line['feed_title'])."\">
5268                                                         $feed_icon_img<span>";
5269                                         }
5270
5271                                         $reply['content'] .= "</div>";
5272                                         $reply['content'] .= "</div>";
5273
5274                                 } else {
5275
5276                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED') && $line["feed_title"]) {
5277                                                 if ($feed_id != $vgroup_last_feed) {
5278
5279                                                         $cur_feed_title = $line["feed_title"];
5280                                                         $vgroup_last_feed = $feed_id;
5281
5282                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5283
5284                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5285
5286                                                         $has_feed_icon = feed_has_icon($feed_id);
5287
5288                                                         if ($has_feed_icon) {
5289                                                                 $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5290                                                         } else {
5291                                                                 //$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
5292                                                         }
5293
5294                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5295                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5296                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5297                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5298                                                 }
5299                                         }
5300
5301                                         $expand_cdm = get_pref($link, 'CDM_EXPANDED');
5302
5303                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5304                                                 onmouseout='postMouseOut($id)'";
5305
5306                                         $reply['content'] .= "<div class=\"$class\"
5307                                                 id=\"RROW-$id\" $mouseover_attrs'>";
5308
5309                                         $reply['content'] .= "<div class=\"cdmHeader\">";
5310
5311                                         $reply['content'] .= "<div style='float : right'>";
5312                                         $reply['content'] .= "<span class='updated'>$updated_fmt</span>";
5313                                         $reply['content'] .= "$score_pic";
5314
5315                                         if (!get_pref($link, "VFEED_GROUP_BY_FEED") && $line["feed_title"]) {
5316                                                 $reply['content'] .= "<span style=\"cursor : pointer\"
5317                                                         title=\"".htmlspecialchars($line["feed_title"])."\"
5318                                                         onclick=\"viewfeed($feed_id)\">$feed_icon_img</span>";
5319                                         }
5320                                         $reply['content'] .= "<div class=\"updPic\">$update_pic</div>";
5321
5322                                         $reply['content'] .= "</div>";
5323
5324                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"toggleSelectRowById(this,
5325                                                         'RROW-$id')\" id=\"RCHK-$id\"/>";
5326
5327                                         $reply['content'] .= "$marked_pic";
5328                                         $reply['content'] .= "$published_pic";
5329
5330                                         $reply['content'] .= "<span id=\"RTITLE-$id\"
5331                                                 onclick=\"return cdmClicked(event, $id);\"
5332                                                 class=\"titleWrap$hlc_suffix\">
5333                                                 <a class=\"title\"
5334                                                 title=\"".htmlspecialchars($line['title'])."\"
5335                                                 target=\"_blank\" href=\"".
5336                                                 htmlspecialchars($line["link"])."\">".
5337                                                 truncate_string($line["title"], 100) .
5338                                                 " $entry_author</a>";
5339
5340                                         $reply['content'] .= $labels_str;
5341
5342                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED') &&
5343                                                 defined('_SHOW_FEED_TITLE_IN_VFEEDS')) {
5344                                                 if (@$line["feed_title"]) {
5345                                                         $reply['content'] .= "<span class=\"hlFeed\">
5346                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5347                                                                 $line["feed_title"]."</a>)
5348                                                         </span>";
5349                                                 }
5350                                         }
5351
5352                                         if (!$expand_cdm)
5353                                                 $content_hidden = "style=\"display : none\"";
5354                                         else
5355                                                 $excerpt_hidden = "style=\"display : none\"";
5356
5357                                         $reply['content'] .= "<span $excerpt_hidden
5358                                                 id=\"CEXC-$id\" class=\"cdmExcerpt\"> - $content_preview</span>";
5359
5360                                         $reply['content'] .= "</span>";
5361
5362                                         $reply['content'] .= "</div>";
5363
5364                                         $reply['content'] .= "<div class=\"cdmContent\" $content_hidden
5365                                                 onclick=\"return cdmClicked(event, $id);\"
5366                                                 id=\"CICD-$id\">";
5367
5368                                         $reply['content'] .= "<div class=\"cdmContentInner\">";
5369
5370                         if ($line["orig_feed_id"]) {
5371
5372                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
5373                                         WHERE id = ".$line["orig_feed_id"]);
5374
5375                                                 if (db_num_rows($tmp_result) != 0) {
5376
5377                                                         $reply['content'] .= "<div clear='both'>";
5378                                                         $reply['content'] .= __("Originally from:");
5379
5380                                                         $reply['content'] .= "&nbsp;";
5381
5382                                                         $tmp_line = db_fetch_assoc($tmp_result);
5383
5384                                                         $reply['content'] .= "<a target='_blank'
5385                                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
5386                                                                 $tmp_line['title'] . "</a>";
5387
5388                                                         $reply['content'] .= "&nbsp;";
5389
5390                                                         $reply['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
5391                                                         $reply['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
5392
5393                                                         $reply['content'] .= "</div>";
5394                                                 }
5395                                         }
5396
5397                                         // FIXME: make this less of a hack
5398
5399                                         $feed_site_url = false;
5400
5401                                         if ($line["feed_id"]) {
5402                                                 $tmp_result = db_query($link, "SELECT site_url FROM ttrss_feeds
5403                                                         WHERE id = " . $line["feed_id"]);
5404
5405                                                 if (db_num_rows($tmp_result) == 1) {
5406                                                         $feed_site_url = db_fetch_result($tmp_result, 0, "site_url");
5407                                                 }
5408                                         }
5409
5410                                         if ($expand_cdm) {
5411                                                 $article_content = sanitize_rss($link, $line["content_preview"],
5412                                                         false, false, $feed_site_url);
5413
5414                                                 if (!$article_content) $article_content = "&nbsp;";
5415                                         } else {
5416                                                 $article_content = '';
5417                                         }
5418
5419                                         $reply['content'] .= "<div id=\"POSTNOTE-$id\">";
5420                                         if ($line['note']) {
5421                                                 $reply['content'] .= format_article_note($id, $line['note']);
5422                                         }
5423                                         $reply['content'] .= "</div>";
5424
5425                                         $reply['content'] .= "<span id=\"CWRAP-$id\">$article_content</span>";
5426
5427                                         $tmp_result = db_query($link, "SELECT always_display_enclosures FROM
5428                                                 ttrss_feeds WHERE id = ".
5429                                                 (($line['feed_id'] == null) ? $line['orig_feed_id'] :
5430                                                                 $line['feed_id'])." AND owner_uid = ".$_SESSION["uid"]);
5431
5432                                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($tmp_result,
5433                                                 0, "always_display_enclosures"));
5434
5435                                         $reply['content'] .= format_article_enclosures($link, $id, $always_display_enclosures,
5436                                                 $article_content);
5437
5438                                         $reply['content'] .= "</div>";
5439
5440                                         $reply['content'] .= "<div class=\"cdmFooter\">";
5441
5442                                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
5443
5444                                         $reply['content'] .= "<img src='".theme_image($link,
5445                                                         'images/tag.png')."' alt='Tags' title='Tags'>
5446                                                 <span id=\"ATSTR-$id\">$tags_str</span>
5447                                                 <a title=\"".__('Edit tags for this article')."\"
5448                                                 href=\"#\" onclick=\"editArticleTags($id, $feed_id, true)\">(+)</a>";
5449
5450                                         $reply['content'] .= "<div style=\"float : right\">";
5451
5452                                         $reply['content'] .= "<img src=\"images/art-zoom.png\"
5453                                                 onclick=\"zoomToArticle(event, $id)\"
5454                                                 style=\"cursor : pointer\"
5455                                                 alt='Zoom'
5456                                                 title='".__('Open article in new tab')."'>";
5457
5458                                         //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
5459
5460                                         $reply['content'] .= "<img src=\"images/art-pub-note.png\"
5461                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5462                                                 onclick=\"editArticleNote($id)\"
5463                                                 alt='PubNote' title='".__('Edit article note')."'>";
5464
5465                                         if (DIGEST_ENABLE) {
5466                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
5467                                                         style=\"cursor : pointer\"
5468                                                         onclick=\"emailArticle($id)\"
5469                                                         alt='Zoom' title='".__('Forward by email')."'>";
5470                                         }
5471
5472                                         if (ENABLE_TWEET_BUTTON) {
5473                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
5474                                                         class='tagsPic' style=\"cursor : pointer\"
5475                                                         onclick=\"tweetArticle($id)\"
5476                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
5477                                         }
5478
5479                                         $reply['content'] .= "<img src=\"images/digest_checkbox.png\"
5480                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5481                                                 onclick=\"dismissArticle($id)\"
5482                                                 alt='Dismiss' title='".__('Dismiss article')."'>";
5483
5484                                         $reply['content'] .= "</div>";
5485                                         $reply['content'] .= "</div>";
5486
5487                                         $reply['content'] .= "</div>";
5488
5489                                         $reply['content'] .= "</div>";
5490
5491                                 }
5492
5493                                 ++$lnum;
5494                         }
5495
5496                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PE", $timing_info);
5497
5498                 } else {
5499                         $message = "";
5500
5501                         switch ($view_mode) {
5502                                 case "unread":
5503                                         $message = __("No unread articles found to display.");
5504                                         break;
5505                                 case "updated":
5506                                         $message = __("No updated articles found to display.");
5507                                         break;
5508                                 case "marked":
5509                                         $message = __("No starred articles found to display.");
5510                                         break;
5511                                 default:
5512                                         if ($feed < -10) {
5513                                                 $message = __("No articles found to display. You can assign articles to labels manually (see the Actions menu above) or use a filter.");
5514                                         } else {
5515                                                 $message = __("No articles found to display.");
5516                                         }
5517                         }
5518
5519                         if (!$offset && $message) {
5520                                 $reply['content'] .= "<div class='whiteBox'>$message";
5521
5522                                 $reply['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
5523
5524                                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
5525                                         WHERE owner_uid = " . $_SESSION['uid']);
5526
5527                                 $last_updated = db_fetch_result($result, 0, "last_updated");
5528                                 $last_updated = make_local_datetime($link, $last_updated, false);
5529
5530                                 $reply['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
5531
5532                                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
5533                                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
5534
5535                                 $num_errors = db_fetch_result($result, 0, "num_errors");
5536
5537                                 if ($num_errors > 0) {
5538                                         $reply['content'] .= "<br/>";
5539                                         $reply['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
5540                                                 __('Some feeds have update errors (click for details)')."</a>";
5541                                 }
5542                                 $reply['content'] .= "</span></p></div>";
5543                         }
5544                 }
5545
5546                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H2", $timing_info);
5547
5548                 return array($topmost_article_ids, $headlines_count, $feed, $disable_cache,
5549                         $vgroup_last_feed, $reply);
5550         }
5551
5552 // from here: http://www.roscripts.com/Create_tag_cloud-71.html
5553
5554         function printTagCloud($link) {
5555
5556                 $query = "SELECT tag_name, COUNT(post_int_id) AS count
5557                         FROM ttrss_tags WHERE owner_uid = ".$_SESSION["uid"]."
5558                         GROUP BY tag_name ORDER BY count DESC LIMIT 50";
5559
5560                 $result = db_query($link, $query);
5561
5562                 $tags = array();
5563
5564                 while ($line = db_fetch_assoc($result)) {
5565                         $tags[$line["tag_name"]] = $line["count"];
5566                 }
5567
5568         if( count($tags) == 0 ){ return; }
5569
5570                 ksort($tags);
5571
5572                 $max_size = 32; // max font size in pixels
5573                 $min_size = 11; // min font size in pixels
5574
5575                 // largest and smallest array values
5576                 $max_qty = max(array_values($tags));
5577                 $min_qty = min(array_values($tags));
5578
5579                 // find the range of values
5580                 $spread = $max_qty - $min_qty;
5581                 if ($spread == 0) { // we don't want to divide by zero
5582                                 $spread = 1;
5583                 }
5584
5585                 // set the font-size increment
5586                 $step = ($max_size - $min_size) / ($spread);
5587
5588                 // loop through the tag array
5589                 foreach ($tags as $key => $value) {
5590                         // calculate font-size
5591                         // find the $value in excess of $min_qty
5592                         // multiply by the font-size increment ($size)
5593                         // and add the $min_size set above
5594                         $size = round($min_size + (($value - $min_qty) * $step));
5595
5596                         $key_escaped = str_replace("'", "\\'", $key);
5597
5598                         echo "<a href=\"javascript:viewfeed('$key_escaped') \" style=\"font-size: " .
5599                                 $size . "px\" title=\"$value articles tagged with " .
5600                                 $key . '">' . $key . '</a> ';
5601                 }
5602         }
5603
5604         function print_checkpoint($n, $s) {
5605                 $ts = getmicrotime();
5606                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
5607                 return $ts;
5608         }
5609
5610         function sanitize_tag($tag) {
5611                 $tag = trim($tag);
5612
5613                 $tag = mb_strtolower($tag, 'utf-8');
5614
5615                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
5616
5617 //              $tag = str_replace('"', "", $tag);
5618 //              $tag = str_replace("+", " ", $tag);
5619                 $tag = str_replace("technorati tag: ", "", $tag);
5620
5621                 return $tag;
5622         }
5623
5624         function get_self_url_prefix() {
5625                 return SELF_URL_PATH;
5626         }
5627
5628         function opml_publish_url($link){
5629
5630                 $url_path = get_self_url_prefix();
5631                 $url_path .= "/opml.php?op=publish&key=" .
5632                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
5633
5634                 return $url_path;
5635         }
5636
5637         /**
5638          * Purge a feed contents, marked articles excepted.
5639          *
5640          * @param mixed $link The database connection.
5641          * @param integer $id The id of the feed to purge.
5642          * @return void
5643          */
5644         function clear_feed_articles($link, $id) {
5645
5646                 if ($id != 0) {
5647                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5648                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5649                 } else {
5650                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5651                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5652                 }
5653
5654                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
5655                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
5656
5657                 ccache_update($link, $id, $_SESSION['uid']);
5658         } // function clear_feed_articles
5659
5660         /**
5661          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
5662          *
5663          * @return string The Mozilla Firefox feed adding URL.
5664          */
5665         function add_feed_url() {
5666                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
5667
5668                 $url_path = get_self_url_prefix() .
5669                         "/backend.php?op=pref-feeds&quiet=1&subop=add&feed_url=%s";
5670                 return $url_path;
5671         } // function add_feed_url
5672
5673         /**
5674          * Encrypt a password in SHA1.
5675          *
5676          * @param string $pass The password to encrypt.
5677          * @param string $login A optionnal login.
5678          * @return string The encrypted password.
5679          */
5680         function encrypt_password($pass, $login = '') {
5681                 if ($login) {
5682                         return "SHA1X:" . sha1("$login:$pass");
5683                 } else {
5684                         return "SHA1:" . sha1($pass);
5685                 }
5686         } // function encrypt_password
5687
5688         /**
5689          * Update a feed batch.
5690          * Used by daemons to update n feeds by run.
5691          * Only update feed needing a update, and not being processed
5692          * by another process.
5693          *
5694          * @param mixed $link Database link
5695          * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
5696          * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
5697          * @param boolean $debug Set to false to disable debug output. Default to true.
5698          * @return void
5699          */
5700         function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
5701                 // Process all other feeds using last_updated and interval parameters
5702
5703                 // Test if the user has loggued in recently. If not, it does not update its feeds.
5704                 if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
5705                         if (DB_TYPE == "pgsql") {
5706                                 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
5707                         } else {
5708                                 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
5709                         }
5710                 } else {
5711                         $login_thresh_qpart = "";
5712                 }
5713
5714                 // Test if the feed need a update (update interval exceded).
5715                 if (DB_TYPE == "pgsql") {
5716                         $update_limit_qpart = "AND ((
5717                                         ttrss_feeds.update_interval = 0
5718                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
5719                                 ) OR (
5720                                         ttrss_feeds.update_interval > 0
5721                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
5722                                 ) OR ttrss_feeds.last_updated IS NULL)";
5723                 } else {
5724                         $update_limit_qpart = "AND ((
5725                                         ttrss_feeds.update_interval = 0
5726                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
5727                                 ) OR (
5728                                         ttrss_feeds.update_interval > 0
5729                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
5730                                 ) OR ttrss_feeds.last_updated IS NULL)";
5731                 }
5732
5733                 // Test if feed is currently being updated by another process.
5734                 if (DB_TYPE == "pgsql") {
5735                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
5736                 } else {
5737                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
5738                 }
5739
5740                 // Test if there is a limit to number of updated feeds
5741                 $query_limit = "";
5742                 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
5743
5744                 $random_qpart = sql_random_function();
5745
5746                 // We search for feed needing update.
5747                 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
5748                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
5749                                 ttrss_feeds.update_interval
5750                         FROM
5751                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
5752                         WHERE
5753                                 ttrss_feeds.owner_uid = ttrss_users.id
5754                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
5755                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
5756                                 $login_thresh_qpart $update_limit_qpart
5757                          $updstart_thresh_qpart
5758                         ORDER BY $random_qpart $query_limit");
5759
5760                 $user_prefs_cache = array();
5761
5762                 if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
5763
5764                 // Here is a little cache magic in order to minimize risk of double feed updates.
5765                 $feeds_to_update = array();
5766                 while ($line = db_fetch_assoc($result)) {
5767                         $feeds_to_update[$line['id']] = $line;
5768                 }
5769
5770                 // We update the feed last update started date before anything else.
5771                 // There is no lag due to feed contents downloads
5772                 // It prevent an other process to update the same feed.
5773                 $feed_ids = array_keys($feeds_to_update);
5774                 if($feed_ids) {
5775                         db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
5776                                 WHERE id IN (%s)", implode(',', $feed_ids)));
5777                 }
5778
5779                 // For each feed, we call the feed update function.
5780                 while ($line = array_pop($feeds_to_update)) {
5781
5782                         if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
5783
5784                         update_rss_feed($link, $line["id"], true);
5785
5786                         sleep(1); // prevent flood (FIXME make this an option?)
5787                 }
5788
5789                 // Send feed digests by email if needed.
5790                 if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
5791
5792         } // function update_daemon_common
5793
5794         function sanitize_article_content($text) {
5795                 # we don't support CDATA sections in articles, they break our own escaping
5796                 $text = preg_replace("/\[\[CDATA/", "", $text);
5797                 $text = preg_replace("/\]\]\>/", "", $text);
5798                 return $text;
5799         }
5800
5801         function load_filters($link, $feed, $owner_uid, $action_id = false) {
5802                 $filters = array();
5803
5804                 global $memcache;
5805
5806                 $obj_id = md5("FILTER:$feed:$owner_uid:$action_id");
5807
5808                 if ($memcache && $obj = $memcache->get($obj_id)) {
5809
5810                         return $obj;
5811
5812                 } else {
5813
5814                         if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
5815
5816                         $result = db_query($link, "SELECT reg_exp,
5817                                 ttrss_filter_types.name AS name,
5818                                 ttrss_filter_actions.name AS action,
5819                                 inverse,
5820                                 action_param,
5821                                 filter_param
5822                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
5823                                         enabled = true AND
5824                                         $ftype_query_part
5825                                         owner_uid = $owner_uid AND
5826                                         ttrss_filter_types.id = filter_type AND
5827                                         ttrss_filter_actions.id = action_id AND
5828                                         (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
5829
5830                         while ($line = db_fetch_assoc($result)) {
5831                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
5832                                         $filter["reg_exp"] = $line["reg_exp"];
5833                                         $filter["action"] = $line["action"];
5834                                         $filter["action_param"] = $line["action_param"];
5835                                         $filter["filter_param"] = $line["filter_param"];
5836                                         $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
5837
5838                                         array_push($filters[$line["name"]], $filter);
5839                                 }
5840
5841                         if ($memcache) $memcache->add($obj_id, $filters, 0, 3600*8);
5842
5843                         return $filters;
5844                 }
5845         }
5846
5847         function get_score_pic($score) {
5848                 if ($score > 100) {
5849                         return "score_high.png";
5850                 } else if ($score > 0) {
5851                         return "score_half_high.png";
5852                 } else if ($score < -100) {
5853                         return "score_low.png";
5854                 } else if ($score < 0) {
5855                         return "score_half_low.png";
5856                 } else {
5857                         return "score_neutral.png";
5858                 }
5859         }
5860
5861         function rounded_table_start($classname, $header = "&nbsp;") {
5862                 print "<table width='100%' class='$classname' cellspacing='0' cellpadding='0'>";
5863                 print "<tr><td class='c1'>&nbsp;</td><td class='top'>$header</td><td class='c2'>&nbsp;</td></tr>";
5864                 print "<tr><td class='left'>&nbsp;</td><td class='content'>";
5865         }
5866
5867         function rounded_table_end($footer = "&nbsp;") {
5868                 print "</td><td class='right'>&nbsp;</td></tr>";
5869                 print "<tr><td class='c4'>&nbsp;</td><td class='bottom'>$footer</td><td class='c3'>&nbsp;</td></tr>";
5870                 print "</table>";
5871         }
5872
5873         function feed_has_icon($id) {
5874                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
5875         }
5876
5877         function init_connection($link) {
5878                 if (DB_TYPE == "pgsql") {
5879                         pg_query($link, "set client_encoding = 'UTF-8'");
5880                         pg_set_client_encoding("UNICODE");
5881                         pg_query($link, "set datestyle = 'ISO, european'");
5882                         pg_query($link, "set TIME ZONE 0");
5883                 } else {
5884                         db_query($link, "SET time_zone = '+0:0'");
5885
5886                         if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
5887                                 db_query($link, "SET NAMES " . MYSQL_CHARSET);
5888         //                      db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
5889                         }
5890                 }
5891         }
5892
5893         function update_feedbrowser_cache($link) {
5894
5895                 $result = db_query($link, "SELECT feed_url, site_url, title, COUNT(id) AS subscribers
5896                         FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5897                                 WHERE tf.feed_url = ttrss_feeds.feed_url
5898                                 AND (private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%'))
5899                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
5900
5901                 db_query($link, "BEGIN");
5902
5903                 db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
5904
5905                 $count = 0;
5906
5907                 while ($line = db_fetch_assoc($result)) {
5908                         $subscribers = db_escape_string($line["subscribers"]);
5909                         $feed_url = db_escape_string($line["feed_url"]);
5910                         $title = db_escape_string($line["title"]);
5911                         $site_url = db_escape_string($line["site_url"]);
5912
5913                         $tmp_result = db_query($link, "SELECT subscribers FROM
5914                                 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
5915
5916                         if (db_num_rows($tmp_result) == 0) {
5917
5918                                 db_query($link, "INSERT INTO ttrss_feedbrowser_cache
5919                                         (feed_url, site_url, title, subscribers) VALUES ('$feed_url',
5920                                                 '$site_url', '$title', '$subscribers')");
5921
5922                                 ++$count;
5923
5924                         }
5925
5926                 }
5927
5928                 db_query($link, "COMMIT");
5929
5930                 return $count;
5931
5932         }
5933
5934         function ccache_zero($link, $feed_id, $owner_uid) {
5935                 db_query($link, "UPDATE ttrss_counters_cache SET
5936                         value = 0, updated = NOW() WHERE
5937                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5938         }
5939
5940         function ccache_zero_all($link, $owner_uid) {
5941                 db_query($link, "UPDATE ttrss_counters_cache SET
5942                         value = 0 WHERE owner_uid = '$owner_uid'");
5943
5944                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
5945                         value = 0 WHERE owner_uid = '$owner_uid'");
5946         }
5947
5948         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
5949
5950                 if (!$is_cat) {
5951                         $table = "ttrss_counters_cache";
5952                 } else {
5953                         $table = "ttrss_cat_counters_cache";
5954                 }
5955
5956                 db_query($link, "DELETE FROM $table WHERE
5957                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5958
5959         }
5960
5961         function ccache_update_all($link, $owner_uid) {
5962
5963                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
5964
5965                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
5966                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5967
5968                         while ($line = db_fetch_assoc($result)) {
5969                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
5970                         }
5971
5972                         /* We have to manually include category 0 */
5973
5974                         ccache_update($link, 0, $owner_uid, true);
5975
5976                 } else {
5977                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
5978                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5979
5980                         while ($line = db_fetch_assoc($result)) {
5981                                 print ccache_update($link, $line["feed_id"], $owner_uid);
5982
5983                         }
5984
5985                 }
5986         }
5987
5988         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
5989                 $no_update = false) {
5990
5991                 if (!is_numeric($feed_id)) return;
5992
5993                 if (!$is_cat) {
5994                         $table = "ttrss_counters_cache";
5995                         if ($feed_id > 0) {
5996                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
5997                                         WHERE id = '$feed_id'");
5998                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
5999                         }
6000                 } else {
6001                         $table = "ttrss_cat_counters_cache";
6002                 }
6003
6004                 if (DB_TYPE == "pgsql") {
6005                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
6006                 } else if (DB_TYPE == "mysql") {
6007                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
6008                 }
6009
6010                 $result = db_query($link, "SELECT value FROM $table
6011                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
6012                         LIMIT 1");
6013
6014                 if (db_num_rows($result) == 1) {
6015                         return db_fetch_result($result, 0, "value");
6016                 } else {
6017                         if ($no_update) {
6018                                 return -1;
6019                         } else {
6020                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
6021                         }
6022                 }
6023
6024         }
6025
6026         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
6027                 $update_pcat = true) {
6028
6029                 if (!is_numeric($feed_id)) return;
6030
6031                 if (!$is_cat && $feed_id > 0) {
6032                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
6033                                 WHERE id = '$feed_id'");
6034                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
6035                 }
6036
6037                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
6038
6039                 /* When updating a label, all we need to do is recalculate feed counters
6040                  * because labels are not cached */
6041
6042                 if ($feed_id < 0) {
6043                         ccache_update_all($link, $owner_uid);
6044                         return;
6045                 }
6046
6047                 if (!$is_cat) {
6048                         $table = "ttrss_counters_cache";
6049                 } else {
6050                         $table = "ttrss_cat_counters_cache";
6051                 }
6052
6053                 if ($is_cat && $feed_id >= 0) {
6054                         if ($feed_id != 0) {
6055                                 $cat_qpart = "cat_id = '$feed_id'";
6056                         } else {
6057                                 $cat_qpart = "cat_id IS NULL";
6058                         }
6059
6060                         /* Recalculate counters for child feeds */
6061
6062                         $result = db_query($link, "SELECT id FROM ttrss_feeds
6063                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
6064
6065                         while ($line = db_fetch_assoc($result)) {
6066                                 ccache_update($link, $line["id"], $owner_uid, false, false);
6067                         }
6068
6069                         $result = db_query($link, "SELECT SUM(value) AS sv
6070                                 FROM ttrss_counters_cache, ttrss_feeds
6071                                 WHERE id = feed_id AND $cat_qpart AND
6072                                 ttrss_feeds.owner_uid = '$owner_uid'");
6073
6074                         $unread = (int) db_fetch_result($result, 0, "sv");
6075
6076                 } else {
6077                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
6078                 }
6079
6080                 db_query($link, "BEGIN");
6081
6082                 $result = db_query($link, "SELECT feed_id FROM $table
6083                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
6084
6085                 if (db_num_rows($result) == 1) {
6086                         db_query($link, "UPDATE $table SET
6087                                 value = '$unread', updated = NOW() WHERE
6088                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
6089
6090                 } else {
6091                         db_query($link, "INSERT INTO $table
6092                                 (feed_id, value, owner_uid, updated)
6093                                 VALUES
6094                                 ($feed_id, $unread, $owner_uid, NOW())");
6095                 }
6096
6097                 db_query($link, "COMMIT");
6098
6099                 if ($feed_id > 0 && $prev_unread != $unread) {
6100
6101                         if (!$is_cat) {
6102
6103                                 /* Update parent category */
6104
6105                                 if ($update_pcat) {
6106
6107                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
6108                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
6109
6110                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
6111
6112                                         ccache_update($link, $cat_id, $owner_uid, true);
6113
6114                                 }
6115                         }
6116                 } else if ($feed_id < 0) {
6117                         ccache_update_all($link, $owner_uid);
6118                 }
6119
6120                 return $unread;
6121         }
6122
6123         function label_find_id($link, $label, $owner_uid) {
6124                 $result = db_query($link,
6125                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
6126                                 AND owner_uid = '$owner_uid' LIMIT 1");
6127
6128                 if (db_num_rows($result) == 1) {
6129                         return db_fetch_result($result, 0, "id");
6130                 } else {
6131                         return 0;
6132                 }
6133         }
6134
6135         function get_article_labels($link, $id) {
6136                 global $memcache;
6137
6138                 $obj_id = md5("LABELS:$id:" . $_SESSION["uid"]);
6139
6140                 $rv = array();
6141
6142                 if ($memcache && $obj = $memcache->get($obj_id)) {
6143                         return $obj;
6144                 } else {
6145
6146                         $result = db_query($link, "SELECT label_cache FROM
6147                                 ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
6148                                 $_SESSION["uid"]);
6149
6150                         $label_cache = db_fetch_result($result, 0, "label_cache");
6151
6152                         if ($label_cache) {
6153
6154                                 $label_cache = json_decode($label_cache, true);
6155
6156                                 if ($label_cache["no-labels"] == 1)
6157                                         return $rv;
6158                                 else
6159                                         return $label_cache;
6160                         }
6161
6162                         $result = db_query($link,
6163                                 "SELECT DISTINCT label_id,caption,fg_color,bg_color
6164                                         FROM ttrss_labels2, ttrss_user_labels2
6165                                 WHERE id = label_id
6166                                         AND article_id = '$id'
6167                                         AND owner_uid = ".$_SESSION["uid"] . "
6168                                 ORDER BY caption");
6169
6170                         while ($line = db_fetch_assoc($result)) {
6171                                 $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
6172                                         $line["bg_color"]);
6173                                 array_push($rv, $rk);
6174                         }
6175                         if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6176
6177                         if (count($rv) > 0)
6178                                 label_update_cache($link, $id, $rv);
6179                         else
6180                                 label_update_cache($link, $id, array("no-labels" => 1));
6181                 }
6182
6183                 return $rv;
6184         }
6185
6186
6187         function label_find_caption($link, $label, $owner_uid) {
6188                 $result = db_query($link,
6189                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
6190                                 AND owner_uid = '$owner_uid' LIMIT 1");
6191
6192                 if (db_num_rows($result) == 1) {
6193                         return db_fetch_result($result, 0, "caption");
6194                 } else {
6195                         return "";
6196                 }
6197         }
6198
6199         function label_update_cache($link, $id, $labels = false, $force = false) {
6200
6201                 if ($force)
6202                         label_clear_cache($link, $id);
6203
6204                 if (!$labels)
6205                         $labels = get_article_labels($link, $id);
6206
6207                 $labels = db_escape_string(json_encode($labels));
6208
6209                 db_query($link, "UPDATE ttrss_user_entries SET
6210                         label_cache = '$labels' WHERE ref_id = '$id'");
6211
6212         }
6213
6214         function label_clear_cache($link, $id) {
6215
6216                 db_query($link, "UPDATE ttrss_user_entries SET
6217                         label_cache = '' WHERE ref_id = '$id'");
6218
6219         }
6220
6221         function label_remove_article($link, $id, $label, $owner_uid) {
6222
6223                 $label_id = label_find_id($link, $label, $owner_uid);
6224
6225                 if (!$label_id) return;
6226
6227                 $result = db_query($link,
6228                         "DELETE FROM ttrss_user_labels2
6229                         WHERE
6230                                 label_id = '$label_id' AND
6231                                 article_id = '$id'");
6232
6233                 label_clear_cache($link, $id);
6234         }
6235
6236         function label_add_article($link, $id, $label, $owner_uid) {
6237
6238                 global $memcache;
6239
6240                 if ($memcache) {
6241                         $obj_id = md5("LABELS:$id:$owner_uid");
6242                         $memcache->delete($obj_id);
6243                 }
6244
6245                 $label_id = label_find_id($link, $label, $owner_uid);
6246
6247                 if (!$label_id) return;
6248
6249                 $result = db_query($link,
6250                         "SELECT
6251                                 article_id FROM ttrss_labels2, ttrss_user_labels2
6252                         WHERE
6253                                 label_id = id AND
6254                                 label_id = '$label_id' AND
6255                                 article_id = '$id' AND owner_uid = '$owner_uid'
6256                         LIMIT 1");
6257
6258                 if (db_num_rows($result) == 0) {
6259                         db_query($link, "INSERT INTO ttrss_user_labels2
6260                                 (label_id, article_id) VALUES ('$label_id', '$id')");
6261                 }
6262
6263                 label_clear_cache($link, $id);
6264
6265         }
6266
6267         function label_remove($link, $id, $owner_uid) {
6268                 global $memcache;
6269
6270                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6271
6272                 if ($memcache) {
6273                         $obj_id = md5("LABELS:$id:$owner_uid");
6274                         $memcache->delete($obj_id);
6275                 }
6276
6277                 db_query($link, "BEGIN");
6278
6279                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6280                         WHERE id = '$id'");
6281
6282                 $caption = db_fetch_result($result, 0, "caption");
6283
6284                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
6285                         AND owner_uid = " . $owner_uid);
6286
6287                 if (db_affected_rows($link, $result) != 0 && $caption) {
6288
6289                         /* Remove access key for the label */
6290
6291                         $ext_id = -11 - $id;
6292
6293                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6294                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
6295
6296                         /* Disable filters that reference label being removed */
6297
6298                         db_query($link, "UPDATE ttrss_filters SET
6299                                 enabled = false WHERE action_param = '$caption'
6300                                         AND action_id = 7
6301                                         AND owner_uid = " . $owner_uid);
6302
6303                         /* Remove cached data */
6304
6305                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
6306                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
6307
6308                 }
6309
6310                 db_query($link, "COMMIT");
6311         }
6312
6313         function label_create($link, $caption) {
6314
6315                 db_query($link, "BEGIN");
6316
6317                 $result = false;
6318
6319                 $result = db_query($link, "SELECT id FROM ttrss_labels2
6320                         WHERE caption = '$caption' AND owner_uid =  ". $_SESSION["uid"]);
6321
6322                 if (db_num_rows($result) == 0) {
6323                         $result = db_query($link,
6324                                 "INSERT INTO ttrss_labels2 (caption,owner_uid)
6325                                         VALUES ('$caption', '".$_SESSION["uid"]."')");
6326
6327                         $result = db_affected_rows($link, $result) != 0;
6328                 }
6329
6330                 db_query($link, "COMMIT");
6331
6332                 return $result;
6333         }
6334
6335         function print_labels_headlines_dropdown($link, $feed_id) {
6336                 print "<option value=\"addLabel()\">".__("Create label...")."</option>";
6337
6338                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2 WHERE
6339                         owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6340
6341                 while ($line = db_fetch_assoc($result)) {
6342
6343                         $label_id = $line["id"];
6344                         $label_caption = $line["caption"];
6345                         $id = $line["id"];
6346
6347                         if ($feed_id < -10 && $feed_id == -11-$label_id) {
6348                                 print "<option id=\"LHDL-$id\"
6349                                         value=\"selectionRemoveLabel($label_id)\">".
6350                                         __('Remove:') . " $label_caption</option>";
6351                         } else {
6352                                 print "<option id=\"LHDL-$id\"
6353                                         value=\"selectionAssignLabel($label_id)\">".
6354                                         __('Assign:') . " $label_caption</option>";
6355                         }
6356                 }
6357         }
6358
6359         function format_tags_string($tags, $id) {
6360
6361                 $tags_str = "";
6362                 $tags_nolinks_str = "";
6363
6364                 $num_tags = 0;
6365
6366                 $tag_limit = 6;
6367
6368                 $formatted_tags = array();
6369
6370                 foreach ($tags as $tag) {
6371                         $num_tags++;
6372                         $tag_escaped = str_replace("'", "\\'", $tag);
6373
6374                         if (mb_strlen($tag) > 30) {
6375                                 $tag = truncate_string($tag, 30);
6376                         }
6377
6378                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
6379
6380                         array_push($formatted_tags, $tag_str);
6381
6382                         $tmp_tags_str = implode(", ", $formatted_tags);
6383
6384                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
6385                                 break;
6386                         }
6387                 }
6388
6389                 $tags_str = implode(", ", $formatted_tags);
6390
6391                 if ($num_tags < count($tags)) {
6392                         $tags_str .= ", &hellip;";
6393                 }
6394
6395                 if ($num_tags == 0) {
6396                         $tags_str = __("no tags");
6397                 }
6398
6399                 return $tags_str;
6400
6401         }
6402
6403         function format_article_labels($labels, $id) {
6404
6405                 $labels_str = "";
6406
6407                 foreach ($labels as $l) {
6408                         $labels_str .= sprintf("<span class='hlLabelRef'
6409                                 style='color : %s; background-color : %s'>%s</span>",
6410                                         $l[2], $l[3], $l[1]);
6411                         }
6412
6413                 return $labels_str;
6414
6415         }
6416
6417         function format_article_note($id, $note) {
6418
6419                 $str = "<div class='articleNote'        onclick=\"editArticleNote($id)\">
6420                         <div class='noteEdit' onclick=\"editArticleNote($id)\">".
6421                         __('(edit note)')."</div>$note</div>";
6422
6423                 return $str;
6424         }
6425
6426         function toggle_collapse_cat($link, $cat_id, $mode) {
6427                 if ($cat_id > 0) {
6428                         $mode = bool_to_sql_bool($mode);
6429
6430                         db_query($link, "UPDATE ttrss_feed_categories SET
6431                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
6432                                 $_SESSION["uid"]);
6433                 } else {
6434                         $pref_name = '';
6435
6436                         switch ($cat_id) {
6437                         case -1:
6438                                 $pref_name = '_COLLAPSED_SPECIAL';
6439                                 break;
6440                         case -2:
6441                                 $pref_name = '_COLLAPSED_LABELS';
6442                                 break;
6443                         case 0:
6444                                 $pref_name = '_COLLAPSED_UNCAT';
6445                                 break;
6446                         }
6447
6448                         if ($pref_name) {
6449                                 if ($mode) {
6450                                         set_pref($link, $pref_name, 'true');
6451                                 } else {
6452                                         set_pref($link, $pref_name, 'false');
6453                                 }
6454                         }
6455                 }
6456         }
6457
6458         function remove_feed($link, $id, $owner_uid) {
6459
6460                 if ($id > 0) {
6461
6462                         /* save starred articles in Archived feed */
6463
6464                         db_query($link, "BEGIN");
6465
6466                         /* prepare feed if necessary */
6467
6468                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6469                                 WHERE id = '$id'");
6470
6471                         if (db_num_rows($result) == 0) {
6472                                 db_query($link, "INSERT INTO ttrss_archived_feeds
6473                                         (id, owner_uid, title, feed_url, site_url)
6474                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6475                                 WHERE id = '$id'");
6476                         }
6477
6478                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
6479                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
6480                                         marked = true AND owner_uid = $owner_uid");
6481
6482                         /* Remove access key for the feed */
6483
6484                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6485                                 feed_id = '$id' AND owner_uid = $owner_uid");
6486
6487                         /* remove the feed */
6488
6489                         db_query($link, "DELETE FROM ttrss_feeds
6490                                         WHERE id = '$id' AND owner_uid = $owner_uid");
6491
6492                         db_query($link, "COMMIT");
6493
6494 /*                      if (file_exists(ICONS_DIR . "/$id.ico")) {
6495                                 unlink(ICONS_DIR . "/$id.ico");
6496                         } */
6497
6498                         ccache_remove($link, $id, $owner_uid);
6499
6500                 } else {
6501                         label_remove($link, -11-$id, $owner_uid);
6502                         ccache_remove($link, -11-$id, $owner_uid);
6503                 }
6504         }
6505
6506         function add_feed_category($link, $feed_cat) {
6507
6508                 if (!$feed_cat) return false;
6509
6510                 db_query($link, "BEGIN");
6511
6512                 $result = db_query($link,
6513                         "SELECT id FROM ttrss_feed_categories
6514                         WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
6515
6516                 if (db_num_rows($result) == 0) {
6517
6518                         $result = db_query($link,
6519                                 "INSERT INTO ttrss_feed_categories (owner_uid,title)
6520                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
6521
6522                         db_query($link, "COMMIT");
6523
6524                         return true;
6525                 }
6526
6527                 return false;
6528         }
6529
6530         function remove_feed_category($link, $id, $owner_uid) {
6531
6532                 db_query($link, "DELETE FROM ttrss_feed_categories
6533                         WHERE id = '$id' AND owner_uid = $owner_uid");
6534
6535                 ccache_remove($link, $id, $owner_uid, true);
6536         }
6537
6538         function archive_article($link, $id, $owner_uid) {
6539                 db_query($link, "BEGIN");
6540
6541                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6542                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
6543
6544                 if (db_num_rows($result) != 0) {
6545
6546                         /* prepare the archived table */
6547
6548                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
6549
6550                         if ($feed_id) {
6551                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6552                                         WHERE id = '$feed_id'");
6553
6554                                 if (db_num_rows($result) == 0) {
6555                                         db_query($link, "INSERT INTO ttrss_archived_feeds
6556                                                 (id, owner_uid, title, feed_url, site_url)
6557                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6558                                         WHERE id = '$feed_id'");
6559                                 }
6560
6561                                 db_query($link, "UPDATE ttrss_user_entries
6562                                         SET orig_feed_id = feed_id, feed_id = NULL
6563                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6564                         }
6565                 }
6566
6567                 db_query($link, "COMMIT");
6568         }
6569
6570         function getArticleFeed($link, $id) {
6571                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6572                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6573
6574                 if (db_num_rows($result) != 0) {
6575                         return db_fetch_result($result, 0, "feed_id");
6576                 } else {
6577                         return 0;
6578                 }
6579         }
6580
6581         function make_url_from_parts($parts) {
6582                 $url = $parts['scheme'] . '://' . $parts['host'];
6583
6584                 if ($parts['path']) $url .= $parts['path'];
6585                 if ($parts['query']) $url .= '?' . $parts['query'];
6586
6587                 return $url;
6588         }
6589
6590         /**
6591          * Fixes incomplete URLs by prepending "http://".
6592          * Also replaces feed:// with http://, and
6593          * prepends a trailing slash if the url is a domain name only.
6594          *
6595          * @param string $url Possibly incomplete URL
6596          *
6597          * @return string Fixed URL.
6598          */
6599         function fix_url($url) {
6600                 if (strpos($url, '://') === false) {
6601                         $url = 'http://' . $url;
6602                 } else if (substr($url, 0, 5) == 'feed:') {
6603                         $url = 'http:' . substr($url, 5);
6604                 }
6605
6606                 //prepend slash if the URL has no slash in it
6607                 // "http://www.example" -> "http://www.example/"
6608                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
6609                         $url .= '/';
6610                 }
6611
6612                 if ($url != "http:///")
6613                         return $url;
6614                 else
6615                         return '';
6616         }
6617
6618         function validate_feed_url($url) {
6619                 $parts = parse_url($url);
6620
6621                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
6622
6623         }
6624
6625         function get_article_enclosures($link, $id) {
6626
6627                 global $memcache;
6628
6629                 $query = "SELECT * FROM ttrss_enclosures
6630                         WHERE post_id = '$id' AND content_url != ''";
6631
6632                 $obj_id = md5("ENCLOSURES:$id");
6633
6634                 $rv = array();
6635
6636                 if ($memcache && $obj = $memcache->get($obj_id)) {
6637                         $rv = $obj;
6638                 } else {
6639                         $result = db_query($link, $query);
6640
6641                         if (db_num_rows($result) > 0) {
6642                                 while ($line = db_fetch_assoc($result)) {
6643                                         array_push($rv, $line);
6644                                 }
6645                                 if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6646                         }
6647                 }
6648
6649                 return $rv;
6650         }
6651
6652         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset) {
6653
6654                         $feeds = array();
6655
6656                         /* Labels */
6657
6658                         if ($cat_id == -4 || $cat_id == -2) {
6659                                 $counters = getLabelCounters($link, true);
6660
6661                                 foreach (array_values($counters) as $cv) {
6662
6663                                         $unread = $cv["counter"];
6664
6665                                         if ($unread || !$unread_only) {
6666
6667                                                 $row = array(
6668                                                                 "id" => $cv["id"],
6669                                                                 "title" => $cv["description"],
6670                                                                 "unread" => $cv["counter"],
6671                                                                 "cat_id" => -2,
6672                                                         );
6673
6674                                                 array_push($feeds, $row);
6675                                         }
6676                                 }
6677                         }
6678
6679                         /* Virtual feeds */
6680
6681                         if ($cat_id == -4 || $cat_id == -1) {
6682                                 foreach (array(-1, -2, -3, -4, 0) as $i) {
6683                                         $unread = getFeedUnread($link, $i);
6684
6685                                         if ($unread || !$unread_only) {
6686                                                 $title = getFeedTitle($link, $i);
6687
6688                                                 $row = array(
6689                                                                 "id" => $i,
6690                                                                 "title" => $title,
6691                                                                 "unread" => $unread,
6692                                                                 "cat_id" => -1,
6693                                                         );
6694                                                 array_push($feeds, $row);
6695                                         }
6696
6697                                 }
6698                         }
6699
6700                         /* Real feeds */
6701
6702                         if ($limit) {
6703                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
6704                         } else {
6705                                 $limit_qpart = "";
6706                         }
6707
6708                         if ($cat_id == -4 || $cat_id == -3) {
6709                                 $result = db_query($link, "SELECT
6710                                         id, feed_url, cat_id, title, ".
6711                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6712                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
6713                                                 " ORDER BY cat_id, title " . $limit_qpart);
6714                         } else {
6715
6716                                 if ($cat_id)
6717                                         $cat_qpart = "cat_id = '$cat_id'";
6718                                 else
6719                                         $cat_qpart = "cat_id IS NULL";
6720
6721                                 $result = db_query($link, "SELECT
6722                                         id, feed_url, cat_id, title, ".
6723                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6724                                                 FROM ttrss_feeds WHERE
6725                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
6726                                                 " ORDER BY cat_id, title " . $limit_qpart);
6727                         }
6728
6729                         while ($line = db_fetch_assoc($result)) {
6730
6731                                 $unread = getFeedUnread($link, $line["id"]);
6732
6733                                 $has_icon = feed_has_icon($line['id']);
6734
6735                                 if ($unread || !$unread_only) {
6736
6737                                         $row = array(
6738                                                         "feed_url" => $line["feed_url"],
6739                                                         "title" => $line["title"],
6740                                                         "id" => (int)$line["id"],
6741                                                         "unread" => (int)$unread,
6742                                                         "has_icon" => $has_icon,
6743                                                         "cat_id" => (int)$line["cat_id"],
6744                                                         "last_updated" => strtotime($line["last_updated"])
6745                                                 );
6746
6747                                         array_push($feeds, $row);
6748                                 }
6749                         }
6750
6751                 return $feeds;
6752         }
6753
6754         function api_get_headlines($link, $feed_id, $limit, $offset,
6755                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
6756                                 $include_attachments) {
6757
6758                         /* do not rely on params below */
6759
6760                         $search = db_escape_string($_REQUEST["search"]);
6761                         $search_mode = db_escape_string($_REQUEST["search_mode"]);
6762                         $match_on = db_escape_string($_REQUEST["match_on"]);
6763
6764                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
6765                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
6766                                 $order, $offset);
6767
6768                         $result = $qfh_ret[0];
6769                         $feed_title = $qfh_ret[1];
6770
6771                         $headlines = array();
6772
6773                         while ($line = db_fetch_assoc($result)) {
6774                                 $is_updated = ($line["last_read"] == "" &&
6775                                         ($line["unread"] != "t" && $line["unread"] != "1"));
6776
6777                                 $headline_row = array(
6778                                                 "id" => (int)$line["id"],
6779                                                 "unread" => sql_bool_to_bool($line["unread"]),
6780                                                 "marked" => sql_bool_to_bool($line["marked"]),
6781                                                 "published" => sql_bool_to_bool($line["published"]),
6782                                                 "updated" => strtotime($line["updated"]),
6783                                                 "is_updated" => $is_updated,
6784                                                 "title" => $line["title"],
6785                                                 "link" => $line["link"],
6786                                                 "feed_id" => $line["feed_id"],
6787                                                 "tags" => get_article_tags($link, $line["id"]),
6788                                         );
6789
6790                                         if ($include_attachments)
6791                                                 $headline_row['attachments'] = get_article_enclosures($link,
6792                                                         $line['id']);
6793
6794                                 if ($show_excerpt) {
6795                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
6796                                         $headline_row["excerpt"] = $excerpt;
6797                                 }
6798
6799                                 if ($show_content) {
6800                                         $headline_row["content"] = $line["content_preview"];
6801                                 }
6802
6803                                 array_push($headlines, $headline_row);
6804                         }
6805
6806                         return $headlines;
6807         }
6808
6809         function generate_error_feed($link, $error) {
6810                 $reply = array();
6811
6812                 $reply['headlines']['id'] = -6;
6813                 $reply['headlines']['is_cat'] = false;
6814
6815                 $reply['headlines']['toolbar'] = '';
6816                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
6817
6818                 $reply['headlines-info'] = array("count" => 0,
6819                         "vgroup_last_feed" => '',
6820                         "unread" => 0,
6821                         "disable_cache" => true);
6822
6823                 return $reply;
6824         }
6825
6826
6827         function generate_dashboard_feed($link) {
6828                 $reply = array();
6829
6830                 $reply['headlines']['id'] = -5;
6831                 $reply['headlines']['is_cat'] = false;
6832
6833                 $reply['headlines']['toolbar'] = '';
6834                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
6835
6836                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
6837
6838                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
6839                         WHERE owner_uid = " . $_SESSION['uid']);
6840
6841                 $last_updated = db_fetch_result($result, 0, "last_updated");
6842                 $last_updated = make_local_datetime($link, $last_updated, false);
6843
6844                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
6845
6846                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
6847                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
6848
6849                 $num_errors = db_fetch_result($result, 0, "num_errors");
6850
6851                 if ($num_errors > 0) {
6852                         $reply['headlines']['content'] .= "<br/>";
6853                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
6854                                 __('Some feeds have update errors (click for details)')."</a>";
6855                 }
6856                 $reply['headlines']['content'] .= "</span></p>";
6857
6858                 $reply['headlines-info'] = array("count" => 0,
6859                         "vgroup_last_feed" => '',
6860                         "unread" => 0,
6861                         "disable_cache" => true);
6862
6863                 return $reply;
6864         }
6865
6866         function save_email_address($link, $email) {
6867                 // FIXME: implement persistent storage of emails
6868
6869                 if (!$_SESSION['stored_emails'])
6870                         $_SESSION['stored_emails'] = array();
6871
6872                 if (!in_array($email, $_SESSION['stored_emails']))
6873                         array_push($_SESSION['stored_emails'], $email);
6874         }
6875
6876         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6877                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6878
6879                 $sql_is_cat = bool_to_sql_bool($is_cat);
6880
6881                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6882                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6883                         AND owner_uid = " . $owner_uid);
6884
6885                 if (db_num_rows($result) == 1) {
6886                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6887
6888                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
6889                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
6890                                 AND owner_uid = " . $owner_uid);
6891
6892                         return $key;
6893
6894                 } else {
6895                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
6896                 }
6897         }
6898
6899         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6900
6901                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6902
6903                 $sql_is_cat = bool_to_sql_bool($is_cat);
6904
6905                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6906                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6907                         AND owner_uid = " . $owner_uid);
6908
6909                 if (db_num_rows($result) == 1) {
6910                         return db_fetch_result($result, 0, "access_key");
6911                 } else {
6912                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6913
6914                         $result = db_query($link, "INSERT INTO ttrss_access_keys
6915                                 (access_key, feed_id, is_cat, owner_uid)
6916                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
6917
6918                         return $key;
6919                 }
6920                 return false;
6921         }
6922
6923         /**
6924          * Extracts RSS/Atom feed URLs from the given HTML URL.
6925          *
6926          * @param string $url HTML page URL
6927          *
6928          * @return array Array of feeds. Key is the full URL, value the title
6929          */
6930         function get_feeds_from_html($url, $login = false, $pass = false)
6931         {
6932                 $url     = fix_url($url);
6933                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
6934
6935                 libxml_use_internal_errors(true);
6936
6937                 $content = @fetch_file_contents($url, false, $login, $pass);
6938
6939                 $doc = new DOMDocument();
6940                 $doc->loadHTML($content);
6941                 $xpath = new DOMXPath($doc);
6942                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
6943                 $feedUrls = array();
6944                 foreach ($entries as $entry) {
6945                         if ($entry->hasAttribute('href')) {
6946                                 $title = $entry->getAttribute('title');
6947                                 if ($title == '') {
6948                                         $title = $entry->getAttribute('type');
6949                                 }
6950                                 $feedUrl = rewrite_relative_url(
6951                                         $baseUrl, $entry->getAttribute('href')
6952                                 );
6953                                 $feedUrls[$feedUrl] = $title;
6954                         }
6955                 }
6956                 return $feedUrls;
6957         }
6958
6959         /**
6960          * Checks if the content behind the given URL is a HTML file
6961          *
6962          * @param string $url URL to check
6963          *
6964          * @return boolean True if the URL contains HTML content
6965          */
6966         function url_is_html($url, $login = false, $pass = false) {
6967                 $content = substr(fetch_file_contents($url, false, $login, $pass), 0, 1000);
6968
6969                 if (stripos($content, '<html>') === false
6970                         && stripos($content, '<html ') === false
6971                 ) {
6972                         return false;
6973                 }
6974
6975                 return true;
6976         }
6977
6978         function print_label_select($link, $name, $value, $attributes = "") {
6979
6980                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6981                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6982
6983                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
6984                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
6985
6986                 while ($line = db_fetch_assoc($result)) {
6987
6988                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
6989
6990                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
6991                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
6992
6993                 }
6994
6995 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
6996
6997                 print "</select>";
6998
6999
7000         }
7001
7002         function format_article_enclosures($link, $id, $always_display_enclosures,
7003                                         $article_content) {
7004
7005                 $result = get_article_enclosures($link, $id);
7006                 $rv = '';
7007
7008                 if (count($result) > 0) {
7009
7010                         $entries_html = array();
7011                         $entries = array();
7012
7013                         foreach ($result as $line) {
7014
7015                                 $url = $line["content_url"];
7016                                 $ctype = $line["content_type"];
7017
7018                                 if (!$ctype) $ctype = __("unknown type");
7019
7020 #                               $filename = substr($url, strrpos($url, "/")+1);
7021
7022                                 $entry = format_inline_player($link, $url, $ctype);
7023
7024 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
7025 #                                       $filename . " (" . $ctype . ")" . "</a>";
7026
7027                                 array_push($entries_html, $entry);
7028
7029                                 $entry = array();
7030
7031                                 $entry["type"] = $ctype;
7032                                 $entry["filename"] = $filename;
7033                                 $entry["url"] = $url;
7034
7035                                 array_push($entries, $entry);
7036                         }
7037
7038                         $rv .= "<div class=\"postEnclosures\">";
7039
7040                         if (!get_pref($link, "STRIP_IMAGES")) {
7041                                 if ($always_display_enclosures ||
7042                                                         !preg_match("/<img/i", $article_content)) {
7043
7044                                         foreach ($entries as $entry) {
7045
7046                                                 if (preg_match("/image/", $entry["type"]) ||
7047                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
7048
7049                                                                 $rv .= "<p><img
7050                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
7051                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
7052                                                 }
7053                                         }
7054                                 }
7055                         }
7056
7057                         if (count($entries) == 1) {
7058                                 $rv .= __("Attachment:") . " ";
7059                         } else {
7060                                 $rv .= __("Attachments:") . " ";
7061                         }
7062
7063                         $rv .= join(", ", $entries_html);
7064
7065                         $rv .= "</div>";
7066                 }
7067
7068                 return $rv;
7069         }
7070
7071         function getLastArticleId($link) {
7072                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
7073                         WHERE owner_uid = " . $_SESSION["uid"]);
7074
7075                 if (db_num_rows($result) == 1) {
7076                         return db_fetch_result($result, 0, "id");
7077                 } else {
7078                         return -1;
7079                 }
7080         }
7081
7082         function build_url($parts) {
7083                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
7084         }
7085
7086         /**
7087          * Converts a (possibly) relative URL to a absolute one.
7088          *
7089          * @param string $url     Base URL (i.e. from where the document is)
7090          * @param string $rel_url Possibly relative URL in the document
7091          *
7092          * @return string Absolute URL
7093          */
7094         function rewrite_relative_url($url, $rel_url) {
7095                 if (strpos($rel_url, "://") !== false) {
7096                         return $rel_url;
7097                 } else if (strpos($rel_url, "/") === 0)
7098                 {
7099                         $parts = parse_url($url);
7100                         $parts['path'] = $rel_url;
7101
7102                         return build_url($parts);
7103
7104                 } else {
7105                         $parts = parse_url($url);
7106                         if (!isset($parts['path'])) {
7107                                 $parts['path'] = '/';
7108                         }
7109                         $dir = $parts['path'];
7110                         if (substr($dir, -1) !== '/') {
7111                                 $dir = dirname($parts['path']);
7112                                 $dir !== '/' && $dir .= '/';
7113                         }
7114                         $parts['path'] = $dir . $rel_url;
7115
7116                         return build_url($parts);
7117                 }
7118         }
7119
7120         function sphinx_search($query, $offset = 0, $limit = 30) {
7121                 $sphinxClient = new SphinxClient();
7122
7123                 $sphinxClient->SetServer('localhost', 9312);
7124                 $sphinxClient->SetConnectTimeout(1);
7125
7126                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
7127                         'feed_title' => 20));
7128
7129                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
7130                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
7131                 $sphinxClient->SetLimits($offset, $limit, 1000);
7132                 $sphinxClient->SetArrayResult(false);
7133                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
7134
7135                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
7136
7137                 $ids = array();
7138
7139                 if (is_array($result['matches'])) {
7140                         foreach (array_keys($result['matches']) as $int_id) {
7141                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
7142                                 array_push($ids, $ref_id);
7143                         }
7144                 }
7145
7146                 return $ids;
7147         }
7148
7149         function cleanup_tags($link, $days = 14, $limit = 1000) {
7150
7151                 if (DB_TYPE == "pgsql") {
7152                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
7153                 } else if (DB_TYPE == "mysql") {
7154                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
7155                 }
7156
7157                 $tags_deleted = 0;
7158
7159                 while ($limit > 0) {
7160                         $limit_part = 500;
7161
7162                         $query = "SELECT ttrss_tags.id AS id
7163                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
7164                                 WHERE post_int_id = int_id AND $interval_query AND
7165                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
7166
7167                         $result = db_query($link, $query);
7168
7169                         $ids = array();
7170
7171                         while ($line = db_fetch_assoc($result)) {
7172                                 array_push($ids, $line['id']);
7173                         }
7174
7175                         if (count($ids) > 0) {
7176                                 $ids = join(",", $ids);
7177                                 print ".";
7178
7179                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
7180                                 $tags_deleted += db_affected_rows($link, $tmp_result);
7181                         } else {
7182                                 break;
7183                         }
7184
7185                         $limit -= $limit_part;
7186                 }
7187
7188                 print "\n";
7189
7190                 return $tags_deleted;
7191         }
7192
7193         function feedlist_init_cat($link, $cat_id, $hidden = false) {
7194                 $obj = array();
7195                 $cat_id = (int) $cat_id;
7196
7197                 if ($cat_id > 0) {
7198                         $cat_unread = ccache_find($link, $cat_id, $_SESSION["uid"], true);
7199                 } else if ($cat_id == 0 || $cat_id == -2) {
7200                         $cat_unread = getCategoryUnread($link, $cat_id);
7201                 }
7202
7203                 $obj['id'] = 'CAT:' . $cat_id;
7204                 $obj['items'] = array();
7205                 $obj['name'] = getCategoryTitle($link, $cat_id);
7206                 $obj['type'] = 'feed';
7207                 $obj['unread'] = (int) $cat_unread;
7208                 $obj['hidden'] = $hidden;
7209                 $obj['bare_id'] = $cat_id;
7210
7211                 return $obj;
7212         }
7213
7214         function feedlist_init_feed($link, $feed_id, $title = false, $unread = false, $error = '', $updated = '') {
7215                 $obj = array();
7216                 $feed_id = (int) $feed_id;
7217
7218                 if (!$title)
7219                         $title = getFeedTitle($link, $feed_id, false);
7220
7221                 if ($unread === false)
7222                         $unread = getFeedUnread($link, $feed_id, false);
7223
7224                 $obj['id'] = 'FEED:' . $feed_id;
7225                 $obj['name'] = $title;
7226                 $obj['unread'] = (int) $unread;
7227                 $obj['type'] = 'feed';
7228                 $obj['error'] = $error;
7229                 $obj['updated'] = $updated;
7230                 $obj['icon'] = getFeedIcon($feed_id);
7231                 $obj['bare_id'] = $feed_id;
7232
7233                 return $obj;
7234         }
7235
7236
7237         function fetch_twitter_rss($link, $url, $owner_uid) {
7238                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
7239                         WHERE id = $owner_uid");
7240
7241                 $access_token = json_decode(db_fetch_result($result, 0, 'twitter_oauth'), true);
7242                 $url_escaped = db_escape_string($url);
7243
7244                 if ($access_token) {
7245
7246                         $tmhOAuth = new tmhOAuth(array(
7247                                 'consumer_key'    => CONSUMER_KEY,
7248                                 'consumer_secret' => CONSUMER_SECRET,
7249                                 'user_token' => $access_token['oauth_token'],
7250                                 'user_secret' => $access_token['oauth_token_secret'],
7251                         ));
7252
7253                         $code = $tmhOAuth->request('GET', $url);
7254
7255                         if ($code == 200) {
7256
7257                                 $content = $tmhOAuth->response['response'];
7258
7259                                 define('MAGPIE_CACHE_ON', false);
7260
7261                                 $rss = new MagpieRSS($content, MAGPIE_OUTPUT_ENCODING,
7262                                         MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING );
7263
7264                                 return $rss;
7265
7266                         } else {
7267
7268                                 db_query($link, "UPDATE ttrss_feeds
7269                                         SET last_error = 'OAuth authorization failed ($code).'
7270                                         WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7271                         }
7272
7273                 } else {
7274
7275                         db_query($link, "UPDATE ttrss_feeds
7276                                 SET last_error = 'OAuth information not found.'
7277                                 WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7278
7279                         return false;
7280                 }
7281         }
7282
7283         function print_user_stylesheet($link) {
7284                 $value = get_pref($link, 'USER_STYLESHEET');
7285
7286                 if ($value) {
7287                         print "<style type=\"text/css\">";
7288                         print str_replace("<br/>", "\n", $value);
7289                         print "</style>";
7290                 }
7291
7292         }
7293
7294         function rewrite_urls($line) {
7295                 global $url_regex;
7296
7297                 $urls = null;
7298
7299                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
7300                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
7301
7302                 return $result;
7303         }
7304
7305         function filter_to_sql($filter) {
7306                 $query = "";
7307
7308                 if (DB_TYPE == "pgsql")
7309                         $reg_qpart = "~";
7310                 else
7311                         $reg_qpart = "REGEXP";
7312
7313                 switch ($filter["type"]) {
7314                         case "title":
7315                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
7316                                         $filter['reg_exp'] . "')";
7317                                 break;
7318                         case "content":
7319                                 $query = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
7320                                         $filter['reg_exp'] . "')";
7321                                 break;
7322                         case "both":
7323                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
7324                                         $filter['reg_exp'] . "') OR LOWER(" .
7325                                         "ttrss_entries.content) $reg_qpart LOWER('" . $filter['reg_exp'] . "')";
7326                                 break;
7327                         case "tag":
7328                                 $query = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
7329                                         $filter['reg_exp'] . "')";
7330                                 break;
7331                         case "link":
7332                                 $query = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
7333                                         $filter['reg_exp'] . "')";
7334                                 break;
7335                         case "date":
7336
7337                                 if ($filter["filter_param"] == "before")
7338                                         $cmp_qpart = "<";
7339                                 else
7340                                         $cmp_qpart = ">=";
7341
7342                                 $timestamp = date("Y-m-d H:N:s", strtotime($filter["reg_exp"]));
7343                                 $query = "ttrss_entries.date_entered $cmp_qpart '$timestamp'";
7344                                 break;
7345                         case "author":
7346                                 $query = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
7347                                         $filter['reg_exp'] . "')";
7348                                 break;
7349                 }
7350
7351                 if ($filter["inverse"])
7352                         $query = "NOT ($query)";
7353
7354                 if ($query) {
7355                         if (DB_TYPE == "pgsql") {
7356                                 $query = " ($query) AND ttrss_entries.date_entered > NOW() - INTERVAL '14 days'";
7357                         } else {
7358                                 $query = " ($query) AND ttrss_entries.date_entered > DATE_SUB(NOW(), INTERVAL 14 DAY)";
7359                         }
7360                         $query .= " AND ";
7361                 }
7362
7363
7364                 return $query;
7365         }
7366
7367         // Status codes:
7368         // -1  - never connected
7369         // 0   - no data received
7370         // 1   - data received successfully
7371         // 2   - did not receive valid data
7372         // >10 - server error, code + 10 (e.g. 16 means server error 6)
7373
7374         function get_linked_feeds($link, $instance_id = false) {
7375                 if ($instance_id)
7376                         $instance_qpart = "id = '$instance_id' AND ";
7377                 else
7378                         $instance_qpart = "";
7379
7380                 if (DB_TYPE == "pgsql") {
7381                         $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'";
7382                 } else {
7383                         $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)";
7384                 }
7385
7386                 $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances
7387                         WHERE $instance_qpart $date_qpart ORDER BY last_connected");
7388
7389                 while ($line = db_fetch_assoc($result)) {
7390                         $id = $line['id'];
7391
7392                         _debug("Updating: " . $line['access_url'] . " ($id)");
7393
7394                         $fetch_url = $line['access_url'] . '/backend.php?op=fbexport';
7395                         $post_query = 'key=' . $line['access_key'];
7396
7397                         $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
7398
7399                         if ($feeds) {
7400                                 $feeds = json_decode($feeds, true);
7401
7402                                 if ($feeds) {
7403                                         if ($feeds['error']) {
7404                                                 $status = $feeds['error']['code'] + 10;
7405                                         } else {
7406                                                 $status = 1;
7407
7408                                                 if (count($feeds['feeds']) > 0) {
7409
7410                                                         db_query($link, "DELETE FROM ttrss_linked_feeds
7411                                                                 WHERE instance_id = '$id'");
7412
7413                                                         foreach ($feeds['feeds'] as $feed) {
7414                                                                 $feed_url = db_escape_string($feed['feed_url']);
7415                                                                 $title = db_escape_string($feed['title']);
7416                                                                 $subscribers = db_escape_string($feed['subscribers']);
7417                                                                 $site_url = db_escape_string($feed['site_url']);
7418
7419                                                                 db_query($link, "INSERT INTO ttrss_linked_feeds
7420                                                                         (feed_url, site_url, title, subscribers, instance_id, created, updated)
7421                                                                 VALUES
7422                                                                         ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())");
7423                                                         }
7424                                                 } else {
7425                                                         // received 0 feeds, this might indicate that
7426                                                         // the instance on the other hand is rebuilding feedbrowser cache
7427                                                         // we will try again later
7428
7429                                                         // TODO: maybe perform expiration based on updated here?
7430                                                 }
7431
7432                                                 _debug("Processed " . count($feeds['feeds']) . " feeds.");
7433                                         }
7434                                 } else {
7435                                         $status = 2;
7436                                 }
7437
7438                         } else {
7439                                 $status = 0;
7440                         }
7441
7442                         _debug("Status: $status");
7443
7444                         db_query($link, "UPDATE ttrss_linked_instances SET
7445                                 last_status_out = '$status', last_connected = NOW() WHERE id = '$id'");
7446
7447                 }
7448
7449         }
7450 ?>