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", $_SESSION["language"],
2150                                                 time() + SESSION_COOKIE_LIFETIME);
2151                                 }
2152
2153                                 // try to remove possible duplicates from feed counter cache
2154                                 ccache_cleanup($link, $_SESSION["uid"]);
2155                         }
2156
2157                 } else {
2158                         return authenticate_user($link, "admin", null);
2159                 }
2160         }
2161
2162         function truncate_string($str, $max_len, $suffix = '&hellip;') {
2163                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
2164                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
2165                 } else {
2166                         return $str;
2167                 }
2168         }
2169
2170         function theme_image($link, $filename) {
2171                 if ($link) {
2172                         $theme_path = get_user_theme_path($link);
2173
2174                         if ($theme_path && is_file($theme_path.$filename)) {
2175                                 return $theme_path.$filename;
2176                         } else {
2177                                 return $filename;
2178                         }
2179                 } else {
2180                         return $filename;
2181                 }
2182         }
2183
2184         function get_user_theme($link) {
2185
2186                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2187                         $theme_name = get_pref($link, "_THEME_ID");
2188                         if (is_dir("themes/$theme_name")) {
2189                                 return $theme_name;
2190                         } else {
2191                                 return '';
2192                         }
2193                 } else {
2194                         return '';
2195                 }
2196
2197         }
2198
2199         function get_user_theme_path($link) {
2200                 $theme_path = '';
2201
2202                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2203                         $theme_name = get_pref($link, "_THEME_ID");
2204
2205                         if ($theme_name && is_dir("themes/$theme_name")) {
2206                                 $theme_path = "themes/$theme_name/";
2207                         } else {
2208                                 $theme_name = '';
2209                         }
2210                 } else {
2211                         $theme_path = '';
2212                 }
2213
2214                 if ($theme_path) {
2215                         if (is_file("$theme_path/theme.ini")) {
2216                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
2217                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
2218                                         return $theme_path;
2219                                 }
2220                         }
2221                 }
2222                 return '';
2223         }
2224
2225         function get_user_theme_options($link) {
2226                 $t = get_user_theme_path($link);
2227
2228                 if ($t) {
2229                         if (is_file("$t/theme.ini")) {
2230                                 $ini = parse_ini_file("$t/theme.ini", true);
2231                                 if ($ini['theme']['version']) {
2232                                         return $ini['theme']['options'];
2233                                 }
2234                         }
2235                 }
2236                 return '';
2237         }
2238
2239         function print_theme_includes($link) {
2240
2241                 $t = get_user_theme_path($link);
2242                 $time = time();
2243
2244                 if ($t) {
2245                         print "<link rel=\"stylesheet\" type=\"text/css\"
2246                                 href=\"$t/theme.css?$time \">";
2247                         if (file_exists("$t/theme.js")) {
2248                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
2249                                         </script>";
2250                         }
2251                 }
2252         }
2253
2254         function get_all_themes() {
2255                 $themes = glob("themes/*");
2256
2257                 asort($themes);
2258
2259                 $rv = array();
2260
2261                 foreach ($themes as $t) {
2262                         if (is_file("$t/theme.ini")) {
2263                                 $ini = parse_ini_file("$t/theme.ini", true);
2264                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
2265                                                         !$ini['theme']['disabled']) {
2266                                         $entry = array();
2267                                         $entry["path"] = $t;
2268                                         $entry["base"] = basename($t);
2269                                         $entry["name"] = $ini['theme']['name'];
2270                                         $entry["version"] = $ini['theme']['version'];
2271                                         $entry["author"] = $ini['theme']['author'];
2272                                         $entry["options"] = $ini['theme']['options'];
2273                                         array_push($rv, $entry);
2274                                 }
2275                         }
2276                 }
2277
2278                 return $rv;
2279         }
2280
2281         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
2282
2283                 try {
2284                         $source_tz = new DateTimeZone($source_tz);
2285                 } catch (Exception $e) {
2286                         $source_tz = new DateTimeZone('UTC');
2287                 }
2288
2289                 try {
2290                         $dest_tz = new DateTimeZone($dest_tz);
2291                 } catch (Exception $e) {
2292                         $dest_tz = new DateTimeZone('UTC');
2293                 }
2294
2295                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
2296                 return $dt->format('U') + $dest_tz->getOffset($dt);
2297         }
2298
2299         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
2300                                         $no_smart_dt = false) {
2301
2302                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2303                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
2304
2305                 global $utc_tz;
2306                 global $tz_offset;
2307
2308                 # We store date in UTC internally
2309                 $dt = new DateTime($timestamp, $utc_tz);
2310
2311                 if ($tz_offset == -1) {
2312
2313                         $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
2314
2315                         try {
2316                                 $user_tz = new DateTimeZone($user_tz_string);
2317                         } catch (Exception $e) {
2318                                 $user_tz = $utc_tz;
2319                         }
2320
2321                         $tz_offset = $user_tz->getOffset($dt);
2322                 }
2323
2324                 $user_timestamp = $dt->format('U') + $tz_offset;
2325
2326                 if (!$no_smart_dt) {
2327                         return smart_date_time($link, $user_timestamp,
2328                                 $tz_offset, $owner_uid);
2329                 } else {
2330                         if ($long)
2331                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2332                         else
2333                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2334
2335                         return date($format, $user_timestamp);
2336                 }
2337         }
2338
2339         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
2340                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2341
2342                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
2343                         return date("G:i", $timestamp);
2344                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
2345                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2346                         return date($format, $timestamp);
2347                 } else {
2348                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2349                         return date($format, $timestamp);
2350                 }
2351         }
2352
2353         function smart_date($timestamp) {
2354                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
2355                         return "Today";
2356                 } else if (date("Y", $timestamp) == date("Y")) {
2357                         return date("D m", $timestamp);
2358                 } else {
2359                         return date("Y/m/d", $timestamp);
2360                 }
2361         }
2362
2363         function sql_bool_to_string($s) {
2364                 if ($s == "t" || $s == "1") {
2365                         return "true";
2366                 } else {
2367                         return "false";
2368                 }
2369         }
2370
2371         function sql_bool_to_bool($s) {
2372                 if ($s == "t" || $s == "1" || $s == "true") {
2373                         return true;
2374                 } else {
2375                         return false;
2376                 }
2377         }
2378
2379         function bool_to_sql_bool($s) {
2380                 if ($s) {
2381                         return "true";
2382                 } else {
2383                         return "false";
2384                 }
2385         }
2386
2387         function toggleEvenOdd($a) {
2388                 if ($a == "even")
2389                         return "odd";
2390                 else
2391                         return "even";
2392         }
2393
2394         // Session caching removed due to causing wrong redirects to upgrade
2395         // script when get_schema_version() is called on an obsolete session
2396         // created on a previous schema version.
2397         function get_schema_version($link, $nocache = false) {
2398                 global $schema_version;
2399
2400                 if (!$schema_version) {
2401                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
2402                         $version = db_fetch_result($result, 0, "schema_version");
2403                         $schema_version = $version;
2404                         return $version;
2405                 } else {
2406                         return $schema_version;
2407                 }
2408         }
2409
2410         function sanity_check($link) {
2411
2412                 global $ERRORS;
2413
2414                 $error_code = 0;
2415                 $schema_version = get_schema_version($link, true);
2416
2417                 if ($schema_version != SCHEMA_VERSION) {
2418                         $error_code = 5;
2419                 }
2420
2421                 if (DB_TYPE == "mysql") {
2422                         $result = db_query($link, "SELECT true", false);
2423                         if (db_num_rows($result) != 1) {
2424                                 $error_code = 10;
2425                         }
2426                 }
2427
2428                 if (db_escape_string("testTEST") != "testTEST") {
2429                         $error_code = 12;
2430                 }
2431
2432                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
2433         }
2434
2435         function file_is_locked($filename) {
2436                 if (function_exists('flock')) {
2437                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
2438                         if ($fp) {
2439                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2440                                         flock($fp, LOCK_UN);
2441                                         fclose($fp);
2442                                         return false;
2443                                 }
2444                                 fclose($fp);
2445                                 return true;
2446                         } else {
2447                                 return false;
2448                         }
2449                 }
2450                 return true; // consider the file always locked and skip the test
2451         }
2452
2453         function make_lockfile($filename) {
2454                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2455
2456                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2457                         if (function_exists('posix_getpid')) {
2458                                 fwrite($fp, posix_getpid() . "\n");
2459                         }
2460                         return $fp;
2461                 } else {
2462                         return false;
2463                 }
2464         }
2465
2466         function make_stampfile($filename) {
2467                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2468
2469                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2470                         fwrite($fp, time() . "\n");
2471                         flock($fp, LOCK_UN);
2472                         fclose($fp);
2473                         return true;
2474                 } else {
2475                         return false;
2476                 }
2477         }
2478
2479         function sql_random_function() {
2480                 if (DB_TYPE == "mysql") {
2481                         return "RAND()";
2482                 } else {
2483                         return "RANDOM()";
2484                 }
2485         }
2486
2487         function catchup_feed($link, $feed, $cat_view, $owner_uid = false) {
2488
2489                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2490
2491                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2492
2493                                 if ($cat_view) {
2494
2495                                         if ($feed >= 0) {
2496
2497                                                 if ($feed > 0) {
2498                                                         $cat_qpart = "cat_id = '$feed'";
2499                                                 } else {
2500                                                         $cat_qpart = "cat_id IS NULL";
2501                                                 }
2502
2503                                                 $tmp_result = db_query($link, "SELECT id
2504                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = $owner_uid");
2505
2506                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
2507
2508                                                         $tmp_feed = $tmp_line["id"];
2509
2510                                                         db_query($link, "UPDATE ttrss_user_entries
2511                                                                 SET unread = false,last_read = NOW()
2512                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = $owner_uid");
2513                                                 }
2514                                         } else if ($feed == -2) {
2515
2516
2517                                                 db_query($link, "UPDATE ttrss_user_entries
2518                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
2519                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
2520                                                         AND unread = true AND owner_uid = $owner_uid");
2521                                         }
2522
2523                                 } else if ($feed > 0) {
2524
2525                                         db_query($link, "UPDATE ttrss_user_entries
2526                                                         SET unread = false,last_read = NOW()
2527                                                         WHERE feed_id = '$feed' AND owner_uid = $owner_uid");
2528
2529                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
2530
2531                                         if ($feed == -1) {
2532                                                 db_query($link, "UPDATE ttrss_user_entries
2533                                                         SET unread = false,last_read = NOW()
2534                                                         WHERE marked = true AND owner_uid = $owner_uid");
2535                                         }
2536
2537                                         if ($feed == -2) {
2538                                                 db_query($link, "UPDATE ttrss_user_entries
2539                                                         SET unread = false,last_read = NOW()
2540                                                         WHERE published = true AND owner_uid = $owner_uid");
2541                                         }
2542
2543                                         if ($feed == -3) {
2544
2545                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
2546
2547                                                 if (DB_TYPE == "pgsql") {
2548                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
2549                                                 } else {
2550                                                         $match_part = "updated > DATE_SUB(NOW(),
2551                                                                 INTERVAL $intl HOUR) ";
2552                                                 }
2553
2554                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
2555                                                         ttrss_user_entries WHERE $match_part AND
2556                                                         unread = true AND
2557                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2558                                                         owner_uid = $owner_uid");
2559
2560                                                 $affected_ids = array();
2561
2562                                                 while ($line = db_fetch_assoc($result)) {
2563                                                         array_push($affected_ids, $line["id"]);
2564                                                 }
2565
2566                                                 catchupArticlesById($link, $affected_ids, 0);
2567                                         }
2568
2569                                         if ($feed == -4) {
2570                                                 db_query($link, "UPDATE ttrss_user_entries
2571                                                         SET unread = false,last_read = NOW()
2572                                                         WHERE owner_uid = $owner_uid");
2573                                         }
2574
2575                                 } else if ($feed < -10) { // label
2576
2577                                         $label_id = -$feed - 11;
2578
2579                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
2580                                                 SET unread = false, last_read = NOW()
2581                                                         WHERE label_id = '$label_id' AND unread = true
2582                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
2583
2584                                 }
2585
2586                                 ccache_update($link, $feed, $owner_uid, $cat_view);
2587
2588                         } else { // tag
2589                                 db_query($link, "BEGIN");
2590
2591                                 $tag_name = db_escape_string($feed);
2592
2593                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
2594                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
2595
2596                                 while ($line = db_fetch_assoc($result)) {
2597                                         db_query($link, "UPDATE ttrss_user_entries SET
2598                                                 unread = false, last_read = NOW()
2599                                                 WHERE int_id = " . $line["post_int_id"]);
2600                                 }
2601                                 db_query($link, "COMMIT");
2602                         }
2603         }
2604
2605         function getAllCounters($link, $omode = "flc", $active_feed = false) {
2606
2607                 if (!$omode) $omode = "flc";
2608
2609                 $data = getGlobalCounters($link);
2610
2611                 $data = array_merge($data, getVirtCounters($link));
2612
2613                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
2614                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
2615                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
2616                 if (strchr($omode, "c")) $data = array_merge($data, getCategoryCounters($link));
2617
2618                 return $data;
2619         }
2620
2621         function getCategoryCounters($link) {
2622                 $ret_arr = array();
2623
2624                 /* Labels category */
2625
2626                 $cv = array("id" => -2, "kind" => "cat",
2627                         "counter" => getCategoryUnread($link, -2));
2628
2629                 array_push($ret_arr, $cv);
2630
2631                 $age_qpart = getMaxAgeSubquery();
2632
2633                 $result = db_query($link, "SELECT id AS cat_id, value AS unread
2634                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
2635                         WHERE ttrss_cat_counters_cache.feed_id = id AND
2636                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
2637
2638                 while ($line = db_fetch_assoc($result)) {
2639                         $line["cat_id"] = (int) $line["cat_id"];
2640
2641                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
2642                                 "counter" => $line["unread"]);
2643
2644                         array_push($ret_arr, $cv);
2645                 }
2646
2647                 /* Special case: NULL category doesn't actually exist in the DB */
2648
2649                 $cv = array("id" => 0, "kind" => "cat",
2650                         "counter" => ccache_find($link, 0, $_SESSION["uid"], true));
2651
2652                 array_push($ret_arr, $cv);
2653
2654                 return $ret_arr;
2655         }
2656
2657         function getCategoryUnread($link, $cat, $owner_uid = false) {
2658
2659                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2660
2661                 if ($cat >= 0) {
2662
2663                         if ($cat != 0) {
2664                                 $cat_query = "cat_id = '$cat'";
2665                         } else {
2666                                 $cat_query = "cat_id IS NULL";
2667                         }
2668
2669                         $age_qpart = getMaxAgeSubquery();
2670
2671                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
2672                                         AND owner_uid = " . $owner_uid);
2673
2674                         $cat_feeds = array();
2675                         while ($line = db_fetch_assoc($result)) {
2676                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
2677                         }
2678
2679                         if (count($cat_feeds) == 0) return 0;
2680
2681                         $match_part = implode(" OR ", $cat_feeds);
2682
2683                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
2684                                 FROM ttrss_user_entries,ttrss_entries
2685                                 WHERE   unread = true AND ($match_part) AND id = ref_id
2686                                 AND $age_qpart AND owner_uid = " . $owner_uid);
2687
2688                         $unread = 0;
2689
2690                         # this needs to be rewritten
2691                         while ($line = db_fetch_assoc($result)) {
2692                                 $unread += $line["unread"];
2693                         }
2694
2695                         return $unread;
2696                 } else if ($cat == -1) {
2697                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
2698                 } else if ($cat == -2) {
2699
2700                         $result = db_query($link, "
2701                                 SELECT COUNT(unread) AS unread FROM
2702                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2703                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2704                                         ttrss_labels2.owner_uid = '$owner_uid'
2705                                         AND unread = true AND feed_id = ttrss_feeds.id
2706                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
2707
2708                         $unread = db_fetch_result($result, 0, "unread");
2709
2710                         return $unread;
2711
2712                 }
2713         }
2714
2715         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
2716                 if (DB_TYPE == "pgsql") {
2717                         return "ttrss_entries.date_updated >
2718                                 NOW() - INTERVAL '$days days'";
2719                 } else {
2720                         return "ttrss_entries.date_updated >
2721                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
2722                 }
2723         }
2724
2725         function getFeedUnread($link, $feed, $is_cat = false) {
2726                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
2727         }
2728
2729         function getLabelUnread($link, $label_id, $owner_uid = false) {
2730                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2731
2732                 $result = db_query($link, "
2733                         SELECT COUNT(unread) AS unread FROM
2734                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2735                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2736                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
2737                                 AND unread = true AND feed_id = ttrss_feeds.id
2738                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
2739
2740                 if (db_num_rows($result) != 0) {
2741                         return db_fetch_result($result, 0, "unread");
2742                 } else {
2743                         return 0;
2744                 }
2745         }
2746
2747         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
2748                 $owner_uid = false) {
2749
2750                 $n_feed = (int) $feed;
2751
2752                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2753
2754                 if ($unread_only) {
2755                         $unread_qpart = "unread = true";
2756                 } else {
2757                         $unread_qpart = "true";
2758                 }
2759
2760                 $age_qpart = getMaxAgeSubquery();
2761
2762                 if ($is_cat) {
2763                         return getCategoryUnread($link, $n_feed, $owner_uid);
2764                 } if ($feed != "0" && $n_feed == 0) {
2765
2766                         $feed = db_escape_string($feed);
2767
2768                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
2769                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2770                                         AND ref_id = id AND $age_qpart
2771                                         AND $unread_qpart)) AS count FROM ttrss_tags
2772                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
2773                         return db_fetch_result($result, 0, "count");
2774
2775                 } else if ($n_feed == -1) {
2776                         $match_part = "marked = true";
2777                 } else if ($n_feed == -2) {
2778                         $match_part = "published = true";
2779                 } else if ($n_feed == -3) {
2780                         $match_part = "unread = true AND score >= 0";
2781
2782                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2783
2784                         if (DB_TYPE == "pgsql") {
2785                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2786                         } else {
2787                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2788                         }
2789                 } else if ($n_feed == -4) {
2790                         $match_part = "true";
2791                 } else if ($n_feed >= 0) {
2792
2793                         if ($n_feed != 0) {
2794                                 $match_part = "feed_id = '$n_feed'";
2795                         } else {
2796                                 $match_part = "feed_id IS NULL";
2797                         }
2798
2799                 } else if ($feed < -10) {
2800
2801                         $label_id = -$feed - 11;
2802
2803                         return getLabelUnread($link, $label_id, $owner_uid);
2804
2805                 }
2806
2807                 if ($match_part) {
2808
2809                         if ($n_feed != 0) {
2810                                 $from_qpart = "ttrss_user_entries,ttrss_feeds,ttrss_entries";
2811                                 $feeds_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2812                         } else {
2813                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
2814                                 $feeds_qpart = '';
2815                         }
2816
2817                         $query = "SELECT count(int_id) AS unread
2818                                 FROM $from_qpart WHERE
2819                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
2820                                 $age_qpart AND
2821                                 $feeds_qpart
2822                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
2823
2824                         $result = db_query($link, $query);
2825
2826                 } else {
2827
2828                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
2829                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
2830                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
2831                                 AND $unread_qpart AND $age_qpart AND
2832                                         ttrss_tags.owner_uid = " . $owner_uid);
2833                 }
2834
2835                 $unread = db_fetch_result($result, 0, "unread");
2836
2837                 return $unread;
2838         }
2839
2840         function getGlobalUnread($link, $user_id = false) {
2841
2842                 if (!$user_id) {
2843                         $user_id = $_SESSION["uid"];
2844                 }
2845
2846                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
2847                         WHERE owner_uid = '$user_id' AND feed_id > 0");
2848
2849                 $c_id = db_fetch_result($result, 0, "c_id");
2850
2851                 return $c_id;
2852         }
2853
2854         function getGlobalCounters($link, $global_unread = -1) {
2855                 $ret_arr = array();
2856
2857                 if ($global_unread == -1) {
2858                         $global_unread = getGlobalUnread($link);
2859                 }
2860
2861                 $cv = array("id" => "global-unread",
2862                         "counter" => $global_unread);
2863
2864                 array_push($ret_arr, $cv);
2865
2866                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2867                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2868
2869                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
2870
2871                 $cv = array("id" => "subscribed-feeds",
2872                         "counter" => $subscribed_feeds);
2873
2874                 array_push($ret_arr, $cv);
2875
2876                 return $ret_arr;
2877         }
2878
2879         function getSubscribedFeeds($link) {
2880                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2881                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2882
2883                 return db_fetch_result($result, 0, "fn");
2884         }
2885
2886         function getTagCounters($link) {
2887
2888                 $ret_arr = array();
2889
2890                 $age_qpart = getMaxAgeSubquery();
2891
2892                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
2893                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2894                                 AND ref_id = id AND $age_qpart
2895                                 AND unread = true)) AS count FROM ttrss_tags
2896                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
2897                                 ORDER BY count DESC LIMIT 55");
2898
2899                 $tags = array();
2900
2901                 while ($line = db_fetch_assoc($result)) {
2902                         $tags[$line["tag_name"]] += $line["count"];
2903                 }
2904
2905                 foreach (array_keys($tags) as $tag) {
2906                         $unread = $tags[$tag];
2907                         $tag = htmlspecialchars($tag);
2908
2909                         $cv = array("id" => $tag,
2910                                 "kind" => "tag",
2911                                 "counter" => $unread);
2912
2913                         array_push($ret_arr, $cv);
2914                 }
2915
2916                 return $ret_arr;
2917         }
2918
2919         function getVirtCounters($link) {
2920
2921                 $ret_arr = array();
2922
2923                 for ($i = 0; $i >= -4; $i--) {
2924
2925                         $count = getFeedUnread($link, $i);
2926
2927                         $cv = array("id" => $i,
2928                                 "counter" => $count);
2929
2930 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2931 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
2932
2933                         array_push($ret_arr, $cv);
2934                 }
2935
2936                 return $ret_arr;
2937         }
2938
2939         function getLabelCounters($link, $descriptions = false) {
2940
2941                 $ret_arr = array();
2942
2943                 $age_qpart = getMaxAgeSubquery();
2944
2945                 $owner_uid = $_SESSION["uid"];
2946
2947                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
2948                         WHERE owner_uid = '$owner_uid'");
2949
2950                 while ($line = db_fetch_assoc($result)) {
2951
2952                         $id = -$line["id"] - 11;
2953
2954                         $label_name = $line["caption"];
2955                         $count = getFeedUnread($link, $id);
2956
2957                         $cv = array("id" => $id,
2958                                 "counter" => $count);
2959
2960                         if ($descriptions)
2961                                 $cv["description"] = $label_name;
2962
2963 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2964 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2965
2966                         array_push($ret_arr, $cv);
2967                 }
2968
2969                 return $ret_arr;
2970         }
2971
2972         function getFeedCounters($link, $active_feed = false) {
2973
2974                 $ret_arr = array();
2975
2976                 $age_qpart = getMaxAgeSubquery();
2977
2978                 $query = "SELECT ttrss_feeds.id,
2979                                 ttrss_feeds.title,
2980                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
2981                                 last_error, value AS count
2982                         FROM ttrss_feeds, ttrss_counters_cache
2983                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
2984                                 AND ttrss_counters_cache.feed_id = id";
2985
2986                 $result = db_query($link, $query);
2987                 $fctrs_modified = false;
2988
2989                 while ($line = db_fetch_assoc($result)) {
2990
2991                         $id = $line["id"];
2992                         $count = $line["count"];
2993                         $last_error = htmlspecialchars($line["last_error"]);
2994
2995                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
2996
2997                         $has_img = feed_has_icon($id);
2998
2999                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
3000                                 $last_updated = '';
3001
3002                         $cv = array("id" => $id,
3003                                 "updated" => $last_updated,
3004                                 "counter" => $count,
3005                                 "has_img" => (int) $has_img);
3006
3007                         if ($last_error)
3008                                 $cv["error"] = $last_error;
3009
3010 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
3011 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
3012
3013                         if ($active_feed && $id == $active_feed)
3014                                 $cv["title"] = truncate_string($line["title"], 30);
3015
3016                         array_push($ret_arr, $cv);
3017
3018                 }
3019
3020                 return $ret_arr;
3021         }
3022
3023         function get_pgsql_version($link) {
3024                 $result = db_query($link, "SELECT version() AS version");
3025                 $version = explode(" ", db_fetch_result($result, 0, "version"));
3026                 return $version[1];
3027         }
3028
3029         /**
3030          * Subscribes the user to the given feed
3031          *
3032          * @param resource $link       Database connection
3033          * @param string   $url        Feed URL to subscribe to
3034          * @param integer  $cat_id     Category ID the feed shall be added to
3035          * @param string   $auth_login (optional) Feed username
3036          * @param string   $auth_pass  (optional) Feed password
3037          *
3038          * @return integer Status code:
3039          *                 0 - OK, Feed already exists
3040          *                 1 - OK, Feed added
3041          *                 2 - Invalid URL
3042          *                 3 - URL content is HTML, no feeds available
3043          *                 4 - URL content is HTML which contains multiple feeds.
3044          *                     Here you should call extractfeedurls in rpc-backend
3045          *                     to get all possible feeds.
3046          *                 5 - Couldn't download the URL content.
3047          */
3048         function subscribe_to_feed($link, $url, $cat_id = 0,
3049                         $auth_login = '', $auth_pass = '') {
3050
3051                 $url = fix_url($url);
3052
3053                 if (!$url || !validate_feed_url($url)) return 2;
3054
3055                 $update_method = 0;
3056
3057                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
3058                         WHERE id = ".$_SESSION['uid']);
3059
3060                 $has_oauth = db_fetch_result($result, 0, 'twitter_oauth');
3061
3062                 if (!$has_oauth || strpos($url, '://api.twitter.com') === false) {
3063                         if (!fetch_file_contents($url, false, $auth_login, $auth_pass)) return 5;
3064
3065                         if (url_is_html($url, $auth_login, $auth_pass)) {
3066                                 $feedUrls = get_feeds_from_html($url, $auth_login, $auth_pass);
3067                                 if (count($feedUrls) == 0) {
3068                                         return 3;
3069                                 } else if (count($feedUrls) > 1) {
3070                                         return 4;
3071                                 }
3072                                 //use feed url as new URL
3073                                 $url = key($feedUrls);
3074                         }
3075
3076                         } else {
3077                                 if (!fetch_twitter_rss($link, $url, $_SESSION['uid']))
3078                                         return 5;
3079
3080                                 $update_method = 3;
3081                         }
3082                 if ($cat_id == "0" || !$cat_id) {
3083                         $cat_qpart = "NULL";
3084                 } else {
3085                         $cat_qpart = "'$cat_id'";
3086                 }
3087
3088                 $result = db_query($link,
3089                         "SELECT id FROM ttrss_feeds
3090                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
3091
3092                 if (db_num_rows($result) == 0) {
3093                         $result = db_query($link,
3094                                 "INSERT INTO ttrss_feeds
3095                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
3096                                 VALUES ('".$_SESSION["uid"]."', '$url',
3097                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
3098
3099                         $result = db_query($link,
3100                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
3101                                         AND owner_uid = " . $_SESSION["uid"]);
3102
3103                         $feed_id = db_fetch_result($result, 0, "id");
3104
3105                         if ($feed_id) {
3106                                 update_rss_feed($link, $feed_id, true);
3107                         }
3108
3109                         return 1;
3110                 } else {
3111                         return 0;
3112                 }
3113         }
3114
3115         function print_feed_select($link, $id, $default_id = "",
3116                 $attributes = "", $include_all_feeds = true) {
3117
3118                 print "<select id=\"$id\" name=\"$id\" $attributes>";
3119                 if ($include_all_feeds) {
3120                         print "<option value=\"0\">".__('All feeds')."</option>";
3121                 }
3122
3123                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
3124                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3125
3126                 if (db_num_rows($result) > 0 && $include_all_feeds) {
3127                         print "<option disabled>--------</option>";
3128                 }
3129
3130                 while ($line = db_fetch_assoc($result)) {
3131                         if ($line["id"] == $default_id) {
3132                                 $is_selected = "selected=\"1\"";
3133                         } else {
3134                                 $is_selected = "";
3135                         }
3136
3137                         $title = truncate_string(htmlspecialchars($line["title"]), 40);
3138
3139                         printf("<option $is_selected value='%d'>%s</option>",
3140                                 $line["id"], $title);
3141                 }
3142
3143                 print "</select>";
3144         }
3145
3146         function print_feed_cat_select($link, $id, $default_id = "",
3147                 $attributes = "", $include_all_cats = true) {
3148
3149                 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
3150
3151                 if ($include_all_cats) {
3152                         print "<option value=\"0\">".__('Uncategorized')."</option>";
3153                 }
3154
3155                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
3156                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3157
3158                 if (db_num_rows($result) > 0 && $include_all_cats) {
3159                         print "<option disabled=\"1\">--------</option>";
3160                 }
3161
3162                 while ($line = db_fetch_assoc($result)) {
3163                         if ($line["id"] == $default_id) {
3164                                 $is_selected = "selected=\"1\"";
3165                         } else {
3166                                 $is_selected = "";
3167                         }
3168
3169                         if ($line["title"])
3170                                 printf("<option $is_selected value='%d'>%s</option>",
3171                                         $line["id"], htmlspecialchars($line["title"]));
3172                 }
3173
3174 #               print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
3175
3176                 print "</select>";
3177         }
3178
3179         function checkbox_to_sql_bool($val) {
3180                 return ($val == "on") ? "true" : "false";
3181         }
3182
3183         function getFeedCatTitle($link, $id) {
3184                 if ($id == -1) {
3185                         return __("Special");
3186                 } else if ($id < -10) {
3187                         return __("Labels");
3188                 } else if ($id > 0) {
3189                         $result = db_query($link, "SELECT ttrss_feed_categories.title
3190                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
3191                                         cat_id = ttrss_feed_categories.id");
3192                         if (db_num_rows($result) == 1) {
3193                                 return db_fetch_result($result, 0, "title");
3194                         } else {
3195                                 return __("Uncategorized");
3196                         }
3197                 } else {
3198                         return "getFeedCatTitle($id) failed";
3199                 }
3200
3201         }
3202
3203         function getFeedIcon($id) {
3204                 switch ($id) {
3205                 case 0:
3206                         return "images/archive.png";
3207                         break;
3208                 case -1:
3209                         return "images/mark_set.png";
3210                         break;
3211                 case -2:
3212                         return "images/pub_set.png";
3213                         break;
3214                 case -3:
3215                         return "images/fresh.png";
3216                         break;
3217                 case -4:
3218                         return "images/tag.png";
3219                         break;
3220                 default:
3221                         if ($id < -10) {
3222                                 return "images/label.png";
3223                         } else {
3224                                 if (file_exists(ICONS_DIR . "/$id.ico"))
3225                                         return ICONS_URL . "/$id.ico";
3226                         }
3227                         break;
3228                 }
3229         }
3230
3231         function getFeedTitle($link, $id) {
3232                 if ($id == -1) {
3233                         return __("Starred articles");
3234                 } else if ($id == -2) {
3235                         return __("Published articles");
3236                 } else if ($id == -3) {
3237                         return __("Fresh articles");
3238                 } else if ($id == -4) {
3239                         return __("All articles");
3240                 } else if ($id === 0 || $id === "0") {
3241                         return __("Archived articles");
3242                 } else if ($id < -10) {
3243                         $label_id = -$id - 11;
3244                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
3245                         if (db_num_rows($result) == 1) {
3246                                 return db_fetch_result($result, 0, "caption");
3247                         } else {
3248                                 return "Unknown label ($label_id)";
3249                         }
3250
3251                 } else if ($id > 0) {
3252                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
3253                         if (db_num_rows($result) == 1) {
3254                                 return db_fetch_result($result, 0, "title");
3255                         } else {
3256                                 return "Unknown feed ($id)";
3257                         }
3258                 } else {
3259                         return $id;
3260                 }
3261         }
3262
3263         function get_session_cookie_name() {
3264                 return ((!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME);
3265         }
3266
3267         function make_init_params($link) {
3268                 $params = array();
3269
3270                 $params["theme"] = get_user_theme($link);
3271                 $params["theme_options"] = get_user_theme_options($link);
3272
3273                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
3274                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
3275                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
3276                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
3277
3278                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
3279                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
3280                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
3281                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
3282
3283                                  $params[strtolower($param)] = (int) get_pref($link, $param);
3284                  }
3285
3286                 $params["icons_url"] = ICONS_URL;
3287                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
3288                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
3289                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
3290                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
3291                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
3292
3293                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3294                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3295
3296                 $max_feed_id = db_fetch_result($result, 0, "mid");
3297                 $num_feeds = db_fetch_result($result, 0, "nf");
3298
3299                 $params["max_feed_id"] = (int) $max_feed_id;
3300                 $params["num_feeds"] = (int) $num_feeds;
3301
3302                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
3303
3304                 return $params;
3305         }
3306
3307         function print_runtime_info($link) {
3308                 print "<runtime-info><![CDATA[";
3309                 print json_encode(make_runtime_info($link));
3310                 print "]]></runtime-info>";
3311         }
3312
3313         function make_runtime_info($link) {
3314                 $data = array();
3315
3316                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3317                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3318
3319                 $max_feed_id = db_fetch_result($result, 0, "mid");
3320                 $num_feeds = db_fetch_result($result, 0, "nf");
3321
3322                 $data["max_feed_id"] = (int) $max_feed_id;
3323                 $data["num_feeds"] = (int) $num_feeds;
3324
3325                 $data['last_article_id'] = getLastArticleId($link);
3326                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
3327
3328                 if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
3329
3330                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
3331
3332                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
3333
3334                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
3335
3336                                 if ($stamp) {
3337                                         $stamp_delta = time() - $stamp;
3338
3339                                         if ($stamp_delta > 1800) {
3340                                                 $stamp_check = 0;
3341                                         } else {
3342                                                 $stamp_check = 1;
3343                                                 $_SESSION["daemon_stamp_check"] = time();
3344                                         }
3345
3346                                         $data['daemon_stamp_ok'] = $stamp_check;
3347
3348                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
3349
3350                                         $data['daemon_stamp'] = $stamp_fmt;
3351                                 }
3352                         }
3353                 }
3354
3355                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
3356                                 $new_version_details = @check_for_update($link);
3357
3358                                 $data['new_version_available'] = (int) ($new_version_details != false);
3359
3360                                 $_SESSION["last_version_check"] = time();
3361                 }
3362
3363                 return $data;
3364         }
3365
3366         function search_to_sql($link, $search, $match_on) {
3367
3368                 $search_query_part = "";
3369
3370                 $keywords = explode(" ", $search);
3371                 $query_keywords = array();
3372
3373                 foreach ($keywords as $k) {
3374                         if (strpos($k, "-") === 0) {
3375                                 $k = substr($k, 1);
3376                                 $not = "NOT";
3377                         } else {
3378                                 $not = "";
3379                         }
3380
3381                         $commandpair = explode(":", mb_strtolower($k), 2);
3382
3383                         if ($commandpair[0] == "note" && $commandpair[1]) {
3384
3385                                 if ($commandpair[1] == "true")
3386                                         array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
3387                                 else
3388                                         array_push($query_keywords, "($not (note IS NULL OR note = ''))");
3389
3390                         } else if ($commandpair[0] == "star" && $commandpair[1]) {
3391
3392                                 if ($commandpair[1] == "true")
3393                                         array_push($query_keywords, "($not (marked = true))");
3394                                 else
3395                                         array_push($query_keywords, "($not (marked = false))");
3396
3397                         } else if ($commandpair[0] == "pub" && $commandpair[1]) {
3398
3399                                 if ($commandpair[1] == "true")
3400                                         array_push($query_keywords, "($not (published = true))");
3401                                 else
3402                                         array_push($query_keywords, "($not (published = false))");
3403
3404                         } else if (strpos($k, "@") === 0) {
3405
3406                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
3407                                 $orig_ts = strtotime(substr($k, 1));
3408                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
3409
3410                                 //$k = date("Y-m-d", strtotime(substr($k, 1)));
3411
3412                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
3413                         } else if ($match_on == "both") {
3414                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
3415                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3416                         } else if ($match_on == "title") {
3417                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
3418                         } else if ($match_on == "content") {
3419                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3420                         }
3421                 }
3422
3423                 $search_query_part = implode("AND", $query_keywords);
3424
3425                 return $search_query_part;
3426         }
3427
3428         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false) {
3429
3430                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3431
3432                 $ext_tables_part = "";
3433
3434                         if ($search) {
3435
3436                                 if (SPHINX_ENABLED) {
3437                                         $ids = join(",", @sphinx_search($search, 0, 500));
3438
3439                                         if ($ids)
3440                                                 $search_query_part = "ref_id IN ($ids) AND ";
3441                                         else
3442                                                 $search_query_part = "ref_id = -1 AND ";
3443
3444                                 } else {
3445                                         $search_query_part = search_to_sql($link, $search, $match_on);
3446                                         $search_query_part .= " AND ";
3447                                 }
3448
3449                         } else {
3450                                 $search_query_part = "";
3451                         }
3452
3453                         if ($filter) {
3454                                 $filter_query_part = filter_to_sql($filter);
3455                         } else {
3456                                 $filter_query_part = "";
3457                         }
3458
3459                         $view_query_part = "";
3460
3461                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
3462                                 if ($search) {
3463                                         $view_query_part = " ";
3464                                 } else if ($feed != -1) {
3465                                         $unread = getFeedUnread($link, $feed, $cat_view);
3466                                         if ($unread > 0) {
3467                                                 $view_query_part = " unread = true AND ";
3468                                         }
3469                                 }
3470                         }
3471
3472                         if ($view_mode == "marked") {
3473                                 $view_query_part = " marked = true AND ";
3474                         }
3475
3476                         if ($view_mode == "published") {
3477                                 $view_query_part = " published = true AND ";
3478                         }
3479
3480                         if ($view_mode == "unread") {
3481                                 $view_query_part = " unread = true AND ";
3482                         }
3483
3484                         if ($view_mode == "updated") {
3485                                 $view_query_part = " (last_read is null and unread = false) AND ";
3486                         }
3487
3488                         if ($limit > 0) {
3489                                 $limit_query_part = "LIMIT " . $limit;
3490                         }
3491
3492                         $vfeed_query_part = "";
3493
3494                         // override query strategy and enable feed display when searching globally
3495                         if ($search && $search_mode == "all_feeds") {
3496                                 $query_strategy_part = "ttrss_entries.id > 0";
3497                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3498                         /* tags */
3499                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
3500                                 $query_strategy_part = "ttrss_entries.id > 0";
3501                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
3502                                         id = feed_id) as feed_title,";
3503                         } else if ($feed > 0 && $search && $search_mode == "this_cat") {
3504
3505                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3506
3507                                 $tmp_result = false;
3508
3509                                 if ($cat_view) {
3510                                         $tmp_result = db_query($link, "SELECT id
3511                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
3512                                 } else {
3513                                         $tmp_result = db_query($link, "SELECT id
3514                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
3515                                                         WHERE id = '$feed') AND id != '$feed'");
3516                                 }
3517
3518                                 $cat_siblings = array();
3519
3520                                 if (db_num_rows($tmp_result) > 0) {
3521                                         while ($p = db_fetch_assoc($tmp_result)) {
3522                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
3523                                         }
3524
3525                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
3526                                                 $feed, implode(" OR ", $cat_siblings));
3527
3528                                 } else {
3529                                         $query_strategy_part = "ttrss_entries.id > 0";
3530                                 }
3531
3532                         } else if ($feed > 0) {
3533
3534                                 if ($cat_view) {
3535
3536                                         if ($feed > 0) {
3537                                                 $query_strategy_part = "cat_id = '$feed'";
3538                                         } else {
3539                                                 $query_strategy_part = "cat_id IS NULL";
3540                                         }
3541
3542                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3543
3544                                 } else {
3545                                         $query_strategy_part = "feed_id = '$feed'";
3546                                 }
3547                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
3548                                 $query_strategy_part = "feed_id IS NULL";
3549                         } else if ($feed == 0 && $cat_view) { // uncategorized
3550                                 $query_strategy_part = "cat_id IS NULL";
3551                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3552                         } else if ($feed == -1) { // starred virtual feed
3553                                 $query_strategy_part = "marked = true";
3554                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3555                         } else if ($feed == -2) { // published virtual feed OR labels category
3556
3557                                 if (!$cat_view) {
3558                                         $query_strategy_part = "published = true";
3559                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3560                                 } else {
3561                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3562
3563                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3564
3565                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
3566                                                 ttrss_user_labels2.article_id = ref_id";
3567
3568                                 }
3569
3570                         } else if ($feed == -3) { // fresh virtual feed
3571                                 $query_strategy_part = "unread = true AND score >= 0";
3572
3573                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
3574
3575                                 if (DB_TYPE == "pgsql") {
3576                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
3577                                 } else {
3578                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
3579                                 }
3580
3581                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3582                         } else if ($feed == -4) { // all articles virtual feed
3583                                 $query_strategy_part = "true";
3584                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3585                         } else if ($feed <= -10) { // labels
3586                                 $label_id = -$feed - 11;
3587
3588                                 $query_strategy_part = "label_id = '$label_id' AND
3589                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
3590                                         ttrss_user_labels2.article_id = ref_id";
3591
3592                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3593                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3594
3595                         } else {
3596                                 $query_strategy_part = "id > 0"; // dumb
3597                         }
3598
3599                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3600                                 $date_sort_field = "updated";
3601                         } else {
3602                                 $date_sort_field = "date_entered";
3603                         }
3604
3605                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
3606                                 $order_by = "$date_sort_field";
3607                         } else {
3608                                 $order_by = "$date_sort_field DESC";
3609                         }
3610
3611                         if ($view_mode != "noscores") {
3612                                 $order_by = "score DESC, $order_by";
3613                         }
3614
3615                         if ($override_order) {
3616                                 $order_by = $override_order;
3617                         }
3618
3619                         $feed_title = "";
3620
3621                         if ($search) {
3622                                 $feed_title = "Search results";
3623                         } else {
3624                                 if ($cat_view) {
3625                                         $feed_title = getCategoryTitle($link, $feed);
3626                                 } else {
3627                                         if ((int)$feed == $feed && $feed > 0) {
3628                                                 $result = db_query($link, "SELECT title,site_url,last_error
3629                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
3630
3631                                                 $feed_title = db_fetch_result($result, 0, "title");
3632                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
3633                                                 $last_error = db_fetch_result($result, 0, "last_error");
3634                                         } else {
3635                                                 $feed_title = getFeedTitle($link, $feed);
3636                                         }
3637                                 }
3638                         }
3639
3640                         $content_query_part = "content as content_preview,";
3641
3642                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
3643
3644                                 if ($feed >= 0) {
3645                                         $feed_kind = "Feeds";
3646                                 } else {
3647                                         $feed_kind = "Labels";
3648                                 }
3649
3650                                 if ($limit_query_part) {
3651                                         $offset_query_part = "OFFSET $offset";
3652                                 }
3653
3654                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
3655                                         if (!$override_order) {
3656                                                 $order_by = "ttrss_feeds.title, $order_by";
3657                                         }
3658                                 }
3659
3660                                 if ($feed != "0") {
3661                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
3662                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
3663
3664                                 } else {
3665                                         $from_qpart = "ttrss_entries,ttrss_user_entries$ext_tables_part
3666                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
3667                                 }
3668
3669                                 $query = "SELECT DISTINCT
3670                                                 date_entered,
3671                                                 guid,
3672                                                 ttrss_entries.id,ttrss_entries.title,
3673                                                 updated,
3674                                                 note,
3675                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
3676                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3677                                                 $vfeed_query_part
3678                                                 $content_query_part
3679                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3680                                                 author,score
3681                                         FROM
3682                                                 $from_qpart
3683                                         WHERE
3684                                         $feed_check_qpart
3685                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
3686                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
3687                                         $search_query_part
3688                                         $filter_query_part
3689                                         $view_query_part
3690                                         $query_strategy_part ORDER BY $order_by
3691                                         $limit_query_part $offset_query_part";
3692
3693                                 if ($_REQUEST["debug"]) print $query;
3694
3695                                 $result = db_query($link, $query);
3696
3697                         } else {
3698                                 // browsing by tag
3699
3700                                 $feed_kind = "Tags";
3701
3702                                 $result = db_query($link, "SELECT DISTINCT
3703                                         date_entered,
3704                                         guid,
3705                                         note,
3706                                         ttrss_entries.id as id,title,
3707                                         updated,
3708                                         unread,feed_id,orig_feed_id,
3709                                         marked,link,last_read,
3710                                         ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3711                                         $vfeed_query_part
3712                                         $content_query_part
3713                                         ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3714                                         score
3715                                         FROM
3716                                                 ttrss_entries,ttrss_user_entries,ttrss_tags
3717                                         WHERE
3718                                                 ref_id = ttrss_entries.id AND
3719                                                 ttrss_user_entries.owner_uid = '$owner_uid' AND
3720                                                 post_int_id = int_id AND tag_name = '$feed' AND
3721                                                 $view_query_part
3722                                                 $search_query_part
3723                                                 $query_strategy_part ORDER BY $order_by
3724                                         $limit_query_part");
3725                         }
3726
3727                         return array($result, $feed_title, $feed_site_url, $last_error);
3728
3729         }
3730
3731         function generate_syndicated_feed($link, $owner_uid, $feed, $is_cat,
3732                 $limit, $search, $search_mode, $match_on, $view_mode = false) {
3733
3734                 require_once "lib/MiniTemplator.class.php";
3735
3736                 $note_style =   "background-color : #fff7d5;
3737                         border-width : 1px; ".
3738                         "padding : 5px; border-style : dashed; border-color : #e7d796;".
3739                         "margin-bottom : 1em; color : #9a8c59;";
3740
3741                 if (!$limit) $limit = 30;
3742
3743                 if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3744                         $date_sort_field = "updated";
3745                 } else {
3746                         $date_sort_field = "date_entered";
3747                 }
3748
3749                 $qfh_ret = queryFeedHeadlines($link, $feed,
3750                         $limit, $view_mode, $is_cat, $search, $search_mode,
3751                         $match_on, "$date_sort_field DESC", 0, $owner_uid);
3752
3753                 $result = $qfh_ret[0];
3754                 $feed_title = htmlspecialchars($qfh_ret[1]);
3755                 $feed_site_url = $qfh_ret[2];
3756                 $last_error = $qfh_ret[3];
3757
3758                 $feed_self_url = get_self_url_prefix() .
3759                         "/backend.php?op=rss&id=-2&key=" .
3760                         get_feed_access_key($link, -2, false);
3761
3762                 if (!$feed_site_url) $feed_site_url = get_self_url_prefix();
3763
3764                 $tpl = new MiniTemplator;
3765
3766                 $tpl->readTemplateFromFile("templates/generated_feed.txt");
3767
3768                 $tpl->setVariable('FEED_TITLE', $feed_title);
3769                 $tpl->setVariable('VERSION', VERSION);
3770                 $tpl->setVariable('FEED_URL', htmlspecialchars($feed_self_url));
3771
3772                 if (PUBSUBHUBBUB_HUB && $feed == -2) {
3773                         $tpl->setVariable('HUB_URL', htmlspecialchars(PUBSUBHUBBUB_HUB));
3774                         $tpl->addBlock('feed_hub');
3775                 }
3776
3777                 $tpl->setVariable('SELF_URL', htmlspecialchars(get_self_url_prefix()));
3778
3779                 while ($line = db_fetch_assoc($result)) {
3780                         $tpl->setVariable('ARTICLE_ID', htmlspecialchars($line['link']));
3781                         $tpl->setVariable('ARTICLE_LINK', htmlspecialchars($line['link']));
3782                         $tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($line['title']));
3783                         $tpl->setVariable('ARTICLE_EXCERPT',
3784                                 truncate_string(strip_tags($line["content_preview"]), 100, '...'));
3785
3786                         $content = sanitize_rss($link, $line["content_preview"], false, $owner_uid);
3787
3788                         if ($line['note']) {
3789                                 $content = "<div style=\"$note_style\">Article note: " . $line['note'] . "</div>" .
3790                                         $content;
3791                         }
3792
3793                         $tpl->setVariable('ARTICLE_CONTENT', $content);
3794
3795                         $tpl->setVariable('ARTICLE_UPDATED', date('c', strtotime($line["updated"])));
3796                         $tpl->setVariable('ARTICLE_AUTHOR', htmlspecialchars($line['author']));
3797
3798                         $tags = get_article_tags($link, $line["id"], $owner_uid);
3799
3800                         foreach ($tags as $tag) {
3801                                 $tpl->setVariable('ARTICLE_CATEGORY', htmlspecialchars($tag));
3802                                 $tpl->addBlock('category');
3803                         }
3804
3805                         $enclosures = get_article_enclosures($link, $line["id"]);
3806
3807                         foreach ($enclosures as $e) {
3808                                 $type = htmlspecialchars($e['content_type']);
3809                                 $url = htmlspecialchars($e['content_url']);
3810                                 $length = $e['duration'];
3811
3812                                 $tpl->setVariable('ARTICLE_ENCLOSURE_URL', $url);
3813                                 $tpl->setVariable('ARTICLE_ENCLOSURE_TYPE', $type);
3814                                 $tpl->setVariable('ARTICLE_ENCLOSURE_LENGTH', $length);
3815
3816                                 $tpl->addBlock('enclosure');
3817                         }
3818
3819                         $tpl->addBlock('entry');
3820                 }
3821
3822                 $tmp = "";
3823
3824                 $tpl->addBlock('feed');
3825                 $tpl->generateOutputToString($tmp);
3826
3827                 print $tmp;
3828         }
3829
3830         function getCategoryTitle($link, $cat_id) {
3831
3832                 if ($cat_id == -1) {
3833                         return __("Special");
3834                 } else if ($cat_id == -2) {
3835                         return __("Labels");
3836                 } else {
3837
3838                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
3839                                 id = '$cat_id'");
3840
3841                         if (db_num_rows($result) == 1) {
3842                                 return db_fetch_result($result, 0, "title");
3843                         } else {
3844                                 return "Uncategorized";
3845                         }
3846                 }
3847         }
3848
3849         function sanitize_rss($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
3850                 global $purifier;
3851
3852                 if (!$owner) $owner = $_SESSION["uid"];
3853
3854                 $res = trim($str); if (!$res) return '';
3855
3856 //              if (get_pref($link, "STRIP_UNSAFE_TAGS", $owner) || $force_strip_tags) {
3857                 $res = $purifier->purify($res);
3858 //              }
3859
3860                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
3861                         $res = preg_replace('/<img[^>]+>/is', '', $res);
3862                 }
3863
3864                 if (strpos($res, "href=") === false)
3865                         $res = rewrite_urls($res);
3866
3867                 $charset_hack = '<head>
3868                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
3869                 </head>';
3870
3871                 $res = trim($res); if (!$res) return '';
3872
3873                 libxml_use_internal_errors(true);
3874
3875                 $doc = new DOMDocument();
3876                 $doc->loadHTML($charset_hack . $res);
3877                 $xpath = new DOMXPath($doc);
3878
3879                 $entries = $xpath->query('(//a[@href]|//img[@src])');
3880                 $br_inserted = 0;
3881
3882                 foreach ($entries as $entry) {
3883
3884                         if ($site_url) {
3885
3886                                 if ($entry->hasAttribute('href'))
3887                                         $entry->setAttribute('href',
3888                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
3889
3890                                 if ($entry->hasAttribute('src'))
3891                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
3892                                                 $entry->setAttribute('src',
3893                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
3894                         }
3895
3896                         if (strtolower($entry->nodeName) == "a") {
3897                                 $entry->setAttribute("target", "_blank");
3898                         }
3899
3900                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
3901                                 $br = $doc->createElement("br");
3902
3903                                 if ($entry->parentNode->nextSibling) {
3904                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
3905                                         $br_inserted = 1;
3906                                 }
3907
3908                         }
3909                 }
3910
3911                 $node = $doc->getElementsByTagName('body')->item(0);
3912
3913                 return $doc->saveXML($node);
3914         }
3915
3916         /**
3917          * Send by mail a digest of last articles.
3918          *
3919          * @param mixed $link The database connection.
3920          * @param integer $limit The maximum number of articles by digest.
3921          * @return boolean Return false if digests are not enabled.
3922          */
3923         function send_headlines_digests($link, $limit = 100) {
3924
3925                 if (!DIGEST_ENABLE) return false;
3926
3927                 $user_limit = DIGEST_EMAIL_LIMIT;
3928                 $days = 1;
3929
3930                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
3931
3932                 if (DB_TYPE == "pgsql") {
3933                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
3934                 } else if (DB_TYPE == "mysql") {
3935                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
3936                 }
3937
3938                 $result = db_query($link, "SELECT id,email FROM ttrss_users
3939                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
3940
3941                 while ($line = db_fetch_assoc($result)) {
3942
3943                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
3944                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
3945
3946                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
3947
3948                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
3949                                 $digest = $tuple[0];
3950                                 $headlines_count = $tuple[1];
3951                                 $affected_ids = $tuple[2];
3952                                 $digest_text = $tuple[3];
3953
3954                                 if ($headlines_count > 0) {
3955
3956                                         $mail = new PHPMailer();
3957
3958                                         $mail->PluginDir = "lib/phpmailer/";
3959                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
3960
3961                                         $mail->CharSet = "UTF-8";
3962
3963                                         $mail->From = DIGEST_FROM_ADDRESS;
3964                                         $mail->FromName = DIGEST_FROM_NAME;
3965                                         $mail->AddAddress($line["email"], $line["login"]);
3966
3967                                         if (DIGEST_SMTP_HOST) {
3968                                                 $mail->Host = DIGEST_SMTP_HOST;
3969                                                 $mail->Mailer = "smtp";
3970                                                 $mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
3971                                                 $mail->Username = DIGEST_SMTP_LOGIN;
3972                                                 $mail->Password = DIGEST_SMTP_PASSWORD;
3973                                         }
3974
3975                                         $mail->IsHTML(true);
3976                                         $mail->Subject = DIGEST_SUBJECT;
3977                                         $mail->Body = $digest;
3978                                         $mail->AltBody = $digest_text;
3979
3980                                         $rc = $mail->Send();
3981
3982                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
3983
3984                                         print "RC=$rc\n";
3985
3986                                         if ($rc && $do_catchup) {
3987                                                 print "Marking affected articles as read...\n";
3988                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
3989                                         }
3990                                 } else {
3991                                         print "No headlines\n";
3992                                 }
3993
3994                                 db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
3995                                         WHERE id = " . $line["id"]);
3996                         }
3997                 }
3998
3999                 print "All done.\n";
4000
4001         }
4002
4003         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
4004
4005                 require_once "lib/MiniTemplator.class.php";
4006
4007                 $tpl = new MiniTemplator;
4008                 $tpl_t = new MiniTemplator;
4009
4010                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
4011                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
4012
4013                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
4014                 $tpl->setVariable('CUR_TIME', date('G:i'));
4015
4016                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
4017                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
4018
4019                 $affected_ids = array();
4020
4021                 if (DB_TYPE == "pgsql") {
4022                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
4023                 } else if (DB_TYPE == "mysql") {
4024                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
4025                 }
4026
4027                 $result = db_query($link, "SELECT ttrss_entries.title,
4028                                 ttrss_feeds.title AS feed_title,
4029                                 date_updated,
4030                                 ttrss_user_entries.ref_id,
4031                                 link,
4032                                 SUBSTRING(content, 1, 120) AS excerpt,
4033                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4034                         FROM
4035                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
4036                         WHERE
4037                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
4038                                 AND include_in_digest = true
4039                                 AND $interval_query
4040                                 AND ttrss_user_entries.owner_uid = $user_id
4041                                 AND unread = true
4042                         ORDER BY ttrss_feeds.title, date_updated DESC
4043                         LIMIT $limit");
4044
4045                 $cur_feed_title = "";
4046
4047                 $headlines_count = db_num_rows($result);
4048
4049                 $headlines = array();
4050
4051                 while ($line = db_fetch_assoc($result)) {
4052                         array_push($headlines, $line);
4053                 }
4054
4055                 for ($i = 0; $i < sizeof($headlines); $i++) {
4056
4057                         $line = $headlines[$i];
4058
4059                         array_push($affected_ids, $line["ref_id"]);
4060
4061                         $updated = make_local_datetime($link, $line['last_updated'], false,
4062                                 $user_id);
4063
4064                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
4065                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
4066                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
4067                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
4068                         $tpl->setVariable('ARTICLE_EXCERPT',
4069                                 truncate_string(strip_tags($line["excerpt"]), 100));
4070
4071                         $tpl->addBlock('article');
4072
4073                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
4074                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
4075                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
4076                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
4077 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
4078 //                              truncate_string(strip_tags($line["excerpt"]), 100));
4079
4080                         $tpl_t->addBlock('article');
4081
4082                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
4083                                 $tpl->addBlock('feed');
4084                                 $tpl_t->addBlock('feed');
4085                         }
4086
4087                 }
4088
4089                 $tpl->addBlock('digest');
4090                 $tpl->generateOutputToString($tmp);
4091
4092                 $tpl_t->addBlock('digest');
4093                 $tpl_t->generateOutputToString($tmp_t);
4094
4095                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
4096         }
4097
4098         function check_for_update($link) {
4099                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
4100                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
4101
4102                         $version_data = @fetch_file_contents($version_url);
4103
4104                         if ($version_data) {
4105                                 $version_data = json_decode($version_data, true);
4106                                 if ($version_data && $version_data['version']) {
4107
4108                                         if (version_compare(VERSION, $version_data['version']) == -1) {
4109                                                 return $version_data;
4110                                         }
4111                                 }
4112                         }
4113                 }
4114                 return false;
4115         }
4116
4117         function markArticlesById($link, $ids, $cmode) {
4118
4119                 $tmp_ids = array();
4120
4121                 foreach ($ids as $id) {
4122                         array_push($tmp_ids, "ref_id = '$id'");
4123                 }
4124
4125                 $ids_qpart = join(" OR ", $tmp_ids);
4126
4127                 if ($cmode == 0) {
4128                         db_query($link, "UPDATE ttrss_user_entries SET
4129                         marked = false,last_read = NOW()
4130                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4131                 } else if ($cmode == 1) {
4132                         db_query($link, "UPDATE ttrss_user_entries SET
4133                         marked = true
4134                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4135                 } else {
4136                         db_query($link, "UPDATE ttrss_user_entries SET
4137                         marked = NOT marked,last_read = NOW()
4138                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4139                 }
4140         }
4141
4142         function publishArticlesById($link, $ids, $cmode) {
4143
4144                 $tmp_ids = array();
4145
4146                 foreach ($ids as $id) {
4147                         array_push($tmp_ids, "ref_id = '$id'");
4148                 }
4149
4150                 $ids_qpart = join(" OR ", $tmp_ids);
4151
4152                 if ($cmode == 0) {
4153                         db_query($link, "UPDATE ttrss_user_entries SET
4154                         published = false,last_read = NOW()
4155                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4156                 } else if ($cmode == 1) {
4157                         db_query($link, "UPDATE ttrss_user_entries SET
4158                         published = true
4159                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4160                 } else {
4161                         db_query($link, "UPDATE ttrss_user_entries SET
4162                         published = NOT published,last_read = NOW()
4163                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4164                 }
4165
4166                 if (PUBSUBHUBBUB_HUB) {
4167                         $rss_link = get_self_url_prefix() .
4168                                 "/backend.php?op=rss&id=-2&key=" .
4169                                 get_feed_access_key($link, -2, false);
4170
4171                         $p = new Publisher(PUBSUBHUBBUB_HUB);
4172
4173                         $pubsub_result = $p->publish_update($rss_link);
4174                 }
4175         }
4176
4177         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
4178
4179                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4180                 if (count($ids) == 0) return;
4181
4182                 $tmp_ids = array();
4183
4184                 foreach ($ids as $id) {
4185                         array_push($tmp_ids, "ref_id = '$id'");
4186                 }
4187
4188                 $ids_qpart = join(" OR ", $tmp_ids);
4189
4190                 if ($cmode == 0) {
4191                         db_query($link, "UPDATE ttrss_user_entries SET
4192                         unread = false,last_read = NOW()
4193                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4194                 } else if ($cmode == 1) {
4195                         db_query($link, "UPDATE ttrss_user_entries SET
4196                         unread = true
4197                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4198                 } else {
4199                         db_query($link, "UPDATE ttrss_user_entries SET
4200                         unread = NOT unread,last_read = NOW()
4201                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4202                 }
4203
4204                 /* update ccache */
4205
4206                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
4207                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4208
4209                 while ($line = db_fetch_assoc($result)) {
4210                         ccache_update($link, $line["feed_id"], $owner_uid);
4211                 }
4212         }
4213
4214         function catchupArticleById($link, $id, $cmode) {
4215
4216                 if ($cmode == 0) {
4217                         db_query($link, "UPDATE ttrss_user_entries SET
4218                         unread = false,last_read = NOW()
4219                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4220                 } else if ($cmode == 1) {
4221                         db_query($link, "UPDATE ttrss_user_entries SET
4222                         unread = true
4223                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4224                 } else {
4225                         db_query($link, "UPDATE ttrss_user_entries SET
4226                         unread = NOT unread,last_read = NOW()
4227                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4228                 }
4229
4230                 $feed_id = getArticleFeed($link, $id);
4231                 ccache_update($link, $feed_id, $_SESSION["uid"]);
4232         }
4233
4234         function make_guid_from_title($title) {
4235                 return preg_replace("/[ \"\',.:;]/", "-",
4236                         mb_strtolower(strip_tags($title), 'utf-8'));
4237         }
4238
4239         function format_headline_subtoolbar($link, $feed_site_url, $feed_title,
4240                         $feed_id, $is_cat, $search, $match_on,
4241                         $search_mode, $view_mode, $error) {
4242
4243                 $page_prev_link = "viewFeedGoPage(-1)";
4244                 $page_next_link = "viewFeedGoPage(1)";
4245                 $page_first_link = "viewFeedGoPage(0)";
4246
4247                 $catchup_page_link = "catchupPage()";
4248                 $catchup_feed_link = "catchupCurrentFeed()";
4249                 $catchup_sel_link = "catchupSelection()";
4250
4251                 $archive_sel_link = "archiveSelection()";
4252                 $delete_sel_link = "deleteSelection()";
4253
4254                 $sel_all_link = "selectArticles('all')";
4255                 $sel_unread_link = "selectArticles('unread')";
4256                 $sel_none_link = "selectArticles('none')";
4257                 $sel_inv_link = "selectArticles('invert')";
4258
4259                 $tog_unread_link = "selectionToggleUnread()";
4260                 $tog_marked_link = "selectionToggleMarked()";
4261                 $tog_published_link = "selectionTogglePublished()";
4262
4263                 $reply = "<div id=\"subtoolbar_main\">";
4264
4265                 $reply .= __('Select:')."
4266                         <a href=\"#\" onclick=\"$sel_all_link\">".__('All')."</a>,
4267                         <a href=\"#\" onclick=\"$sel_unread_link\">".__('Unread')."</a>,
4268                         <a href=\"#\" onclick=\"$sel_inv_link\">".__('Invert')."</a>,
4269                         <a href=\"#\" onclick=\"$sel_none_link\">".__('None')."</a></li>";
4270
4271                 $reply .= " ";
4272
4273                 $reply .= "<select dojoType=\"dijit.form.Select\"
4274                         onchange=\"headlineActionsChange(this)\">";
4275                 $reply .= "<option value=\"false\">".__('Actions...')."</option>";
4276
4277                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection toggle:')."</option>";
4278
4279                 $reply .= "<option value=\"$tog_unread_link\">".__('Unread')."</option>
4280                         <option value=\"$tog_marked_link\">".__('Starred')."</option>
4281                         <option value=\"$tog_published_link\">".__('Published')."</option>";
4282
4283                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection:')."</option>";
4284
4285                 $reply .= "<option value=\"$catchup_sel_link\">".__('Mark as read')."</option>";
4286
4287                 if ($feed_id != "0") {
4288                         $reply .= "<option value=\"$archive_sel_link\">".__('Archive')."</option>";
4289                 } else {
4290                         $reply .= "<option value=\"$archive_sel_link\">".__('Move back')."</option>";
4291                         $reply .= "<option value=\"$delete_sel_link\">".__('Delete')."</option>";
4292
4293                 }
4294
4295                 $reply .= "<option value=\"emailArticle(false)\">".__('Forward by email').
4296                         "</option>";
4297
4298                 if ($is_cat) $cat_q = "&is_cat=$is_cat";
4299
4300                 if ($search) {
4301                         $search_q = "&q=$search&m=$match_on&smode=$search_mode";
4302                 } else {
4303                         $search_q = "";
4304                 }
4305
4306                 $rss_link = htmlspecialchars(get_self_url_prefix() .
4307                         "/backend.php?op=rss&id=$feed_id$cat_q$search_q");
4308
4309                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Feed:')."</option>";
4310
4311                 $reply .= "<option value=\"catchupPage()\">".__('Mark as read')."</option>";
4312
4313                 $reply .= "<option value=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">".__('View as RSS')."</option>";
4314
4315                 $reply .= "</select>";
4316
4317                 $reply .= "</div>";
4318
4319                 $reply .= "<div id=\"subtoolbar_ftitle\">";
4320
4321                 if ($feed_site_url) {
4322                         $target = "target=\"_blank\"";
4323                         $reply .= "<a title=\"".__("Visit the website")."\" $target href=\"$feed_site_url\">".
4324                                 truncate_string($feed_title,30)."</a>";
4325
4326                         if ($error) {
4327                                 $reply .= " (<span class=\"error\" title=\"$error\">Error</span>)";
4328                         }
4329
4330                 } else {
4331                         if ($feed_id < -10) {
4332                                 $label_id = -11-$feed_id;
4333
4334                                 $result = db_query($link, "SELECT fg_color, bg_color
4335                                         FROM ttrss_labels2 WHERE id = '$label_id' AND owner_uid = " .
4336                                         $_SESSION["uid"]);
4337
4338                                 if (db_num_rows($result) != 0) {
4339                                         $fg_color = db_fetch_result($result, 0, "fg_color");
4340                                         $bg_color = db_fetch_result($result, 0, "bg_color");
4341
4342                                         $reply .= "<span style=\"background : $bg_color; color : $fg_color\" >";
4343                                         $reply .= $feed_title;
4344                                         $reply .= "</span>";
4345                                 } else {
4346                                         $reply .= $feed_title;
4347                                 }
4348
4349                         } else {
4350                                 $reply .= $feed_title;
4351                         }
4352                 }
4353
4354                 $reply .= "
4355                         <a href=\"#\"
4356                                 title=\"".__("View as RSS feed")."\"
4357                                 onclick=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">
4358                                 <img class=\"noborder\" style=\"vertical-align : middle\" src=\"images/feed-icon-12x12.png\"></a>";
4359
4360                 $reply .= "</div>";
4361
4362                 return $reply;
4363         }
4364
4365         function outputFeedList($link, $special = true) {
4366
4367                 $feedlist = array();
4368
4369                 $enable_cats = get_pref($link, 'ENABLE_FEED_CATS');
4370
4371                 $feedlist['identifier'] = 'id';
4372                 $feedlist['label'] = 'name';
4373                 $feedlist['items'] = array();
4374
4375                 $owner_uid = $_SESSION["uid"];
4376
4377                 /* virtual feeds */
4378
4379                 if ($special) {
4380
4381                         if ($enable_cats) {
4382                                 $cat_hidden = get_pref($link, "_COLLAPSED_SPECIAL");
4383                                 $cat = feedlist_init_cat($link, -1, $cat_hidden);
4384                         } else {
4385                                 $cat['items'] = array();
4386                         }
4387
4388                         foreach (array(-4, -3, -1, -2, 0) as $i) {
4389                                 array_push($cat['items'], feedlist_init_feed($link, $i));
4390                         }
4391
4392                         if ($enable_cats) {
4393                                 array_push($feedlist['items'], $cat);
4394                         } else {
4395                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4396                         }
4397
4398                         $result = db_query($link, "SELECT * FROM
4399                                 ttrss_labels2 WHERE owner_uid = '$owner_uid' ORDER by caption");
4400
4401                         if (db_num_rows($result) > 0) {
4402
4403                                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
4404                                         $cat_hidden = get_pref($link, "_COLLAPSED_LABELS");
4405                                         $cat = feedlist_init_cat($link, -2, $cat_hidden);
4406                                 } else {
4407                                         $cat['items'] = array();
4408                                 }
4409
4410                                 while ($line = db_fetch_assoc($result)) {
4411
4412                                         $label_id = -$line['id'] - 11;
4413                                         $count = getFeedUnread($link, $label_id);
4414
4415                                         $feed = feedlist_init_feed($link, $label_id, false, $count);
4416
4417                                         $feed['fg_color'] = $line['fg_color'];
4418                                         $feed['bg_color'] = $line['bg_color'];
4419
4420                                         array_push($cat['items'], $feed);
4421                                 }
4422
4423                                 if ($enable_cats) {
4424                                         array_push($feedlist['items'], $cat);
4425                                 } else {
4426                                         $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4427                                 }
4428                         }
4429                 }
4430
4431 /*              if (get_pref($link, 'ENABLE_FEED_CATS')) {
4432                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4433                                 $order_by_qpart = "order_id,category,unread DESC,title";
4434                         } else {
4435                                 $order_by_qpart = "order_id,category,title";
4436                         }
4437                 } else {
4438                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4439                                 $order_by_qpart = "unread DESC,title";
4440                         } else {
4441                                 $order_by_qpart = "title";
4442                         }
4443                 } */
4444
4445                 /* real feeds */
4446
4447                 if ($enable_cats)
4448                         $order_by_qpart = "ttrss_feed_categories.order_id,category,
4449                                 ttrss_feeds.order_id,title";
4450                 else
4451                         $order_by_qpart = "title";
4452
4453                 $age_qpart = getMaxAgeSubquery();
4454
4455                 $query = "SELECT ttrss_feeds.id, ttrss_feeds.title,
4456                         ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated_noms,
4457                         cat_id,last_error,
4458                         ttrss_feed_categories.title AS category,
4459                         ttrss_feed_categories.collapsed,
4460                         value AS unread
4461                         FROM ttrss_feeds LEFT JOIN ttrss_feed_categories
4462                                 ON (ttrss_feed_categories.id = cat_id)
4463                         LEFT JOIN ttrss_counters_cache
4464                                 ON
4465                                         (ttrss_feeds.id = feed_id)
4466                         WHERE
4467                                 ttrss_feeds.owner_uid = '$owner_uid'
4468                         ORDER BY $order_by_qpart";
4469
4470                 $result = db_query($link, $query);
4471
4472                 $actid = $_REQUEST["actid"];
4473
4474                 if (db_num_rows($result) > 0) {
4475
4476                         $category = "";
4477
4478                         if (!$enable_cats)
4479                                 $cat['items'] = array();
4480                         else
4481                                 $cat = false;
4482
4483                         while ($line = db_fetch_assoc($result)) {
4484
4485                                 $feed = htmlspecialchars(trim($line["title"]));
4486
4487                                 if (!$feed) $feed = "[Untitled]";
4488
4489                                 $feed_id = $line["id"];
4490                                 $unread = $line["unread"];
4491
4492                                 $cat_id = $line["cat_id"];
4493                                 $tmp_category = $line["category"];
4494                                 if (!$tmp_category) $tmp_category = __("Uncategorized");
4495
4496                                 if ($category != $tmp_category && $enable_cats) {
4497
4498                                         $category = $tmp_category;
4499
4500                                         $collapsed = sql_bool_to_bool($line["collapsed"]);
4501
4502                                         // workaround for NULL category
4503                                         if ($category == __("Uncategorized")) {
4504                                                 $collapsed = get_pref($link, "_COLLAPSED_UNCAT");
4505                                         }
4506
4507                                         if ($cat) array_push($feedlist['items'], $cat);
4508
4509                                         $cat = feedlist_init_cat($link, $cat_id, $collapsed);
4510                                 }
4511
4512                                 $updated = make_local_datetime($link, $line["updated_noms"], false);
4513
4514                                 array_push($cat['items'], feedlist_init_feed($link, $feed_id,
4515                                         $feed, $unread, $line['last_error'], $updated));
4516                         }
4517
4518                         if ($enable_cats) {
4519                                 array_push($feedlist['items'], $cat);
4520                         } else {
4521                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4522                         }
4523
4524                 }
4525
4526                 return $feedlist;
4527         }
4528
4529         function get_article_tags($link, $id, $owner_uid = 0) {
4530
4531                 global $memcache;
4532
4533                 $a_id = db_escape_string($id);
4534
4535                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4536
4537                 $query = "SELECT DISTINCT tag_name,
4538                         owner_uid as owner FROM
4539                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
4540                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
4541
4542                 $obj_id = md5("TAGS:$owner_uid:$id");
4543                 $tags = array();
4544
4545                 if ($memcache && $obj = $memcache->get($obj_id)) {
4546                         $tags = $obj;
4547                 } else {
4548                         /* check cache first */
4549
4550                         $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
4551                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4552
4553                         $tag_cache = db_fetch_result($result, 0, "tag_cache");
4554
4555                         if ($tag_cache) {
4556                                 $tags = explode(",", $tag_cache);
4557                         } else {
4558
4559                                 /* do it the hard way */
4560
4561                                 $tmp_result = db_query($link, $query);
4562
4563                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
4564                                         array_push($tags, $tmp_line["tag_name"]);
4565                                 }
4566
4567                                 /* update the cache */
4568
4569                                 $tags_str = db_escape_string(join(",", $tags));
4570
4571                                 db_query($link, "UPDATE ttrss_user_entries
4572                                         SET tag_cache = '$tags_str' WHERE ref_id = '$id'
4573                                         AND owner_uid = " . $_SESSION["uid"]);
4574                         }
4575
4576                         if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);
4577                 }
4578
4579                 return $tags;
4580         }
4581
4582         function trim_value(&$value) {
4583                 $value = trim($value);
4584         }
4585
4586         function trim_array($array) {
4587                 $tmp = $array;
4588                 array_walk($tmp, 'trim_value');
4589                 return $tmp;
4590         }
4591
4592         function tag_is_valid($tag) {
4593                 if ($tag == '') return false;
4594                 if (preg_match("/^[0-9]*$/", $tag)) return false;
4595                 if (mb_strlen($tag) > 250) return false;
4596
4597                 if (function_exists('iconv')) {
4598                         $tag = iconv("utf-8", "utf-8", $tag);
4599                 }
4600
4601                 if (!$tag) return false;
4602
4603                 return true;
4604         }
4605
4606         function render_login_form($link, $mobile = 0) {
4607                 switch ($mobile) {
4608                 case 0:
4609                         require_once "login_form.php";
4610                         break;
4611                 case 1:
4612                         require_once "mobile/login_form.php";
4613                         break;
4614                 case 2:
4615                         require_once "mobile/classic/login_form.php";
4616                 }
4617         }
4618
4619         // from http://developer.apple.com/internet/safari/faq.html
4620         function no_cache_incantation() {
4621                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
4622                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
4623                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
4624                 header("Cache-Control: post-check=0, pre-check=0", false);
4625                 header("Pragma: no-cache"); // HTTP/1.0
4626         }
4627
4628         function format_warning($msg, $id = "") {
4629                 global $link;
4630                 return "<div class=\"warning\" id=\"$id\">
4631                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4632         }
4633
4634         function format_notice($msg, $id = "") {
4635                 global $link;
4636                 return "<div class=\"notice\" id=\"$id\">
4637                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
4638         }
4639
4640         function format_error($msg, $id = "") {
4641                 global $link;
4642                 return "<div class=\"error\" id=\"$id\">
4643                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4644         }
4645
4646         function print_notice($msg) {
4647                 return print format_notice($msg);
4648         }
4649
4650         function print_warning($msg) {
4651                 return print format_warning($msg);
4652         }
4653
4654         function print_error($msg) {
4655                 return print format_error($msg);
4656         }
4657
4658
4659         function T_sprintf() {
4660                 $args = func_get_args();
4661                 return vsprintf(__(array_shift($args)), $args);
4662         }
4663
4664         function format_inline_player($link, $url, $ctype) {
4665
4666                 $entry = "";
4667
4668                 if (strpos($ctype, "audio/") === 0) {
4669
4670                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
4671                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
4672                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
4673
4674                                 $id = 'AUDIO-' . uniqid();
4675
4676                                 $entry .= "<audio id=\"$id\"\">
4677                                         <source src=\"$url\"></source>
4678                                         </audio>";
4679
4680                                 $entry .= "<span onclick=\"player(this)\"
4681                                         title=\"".__("Click to play")."\" status=\"0\"
4682                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
4683
4684                         } else {
4685
4686                                 $entry .= "<object type=\"application/x-shockwave-flash\"
4687                                         data=\"lib/button/musicplayer.swf?song_url=$url\"
4688                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
4689                                         <param name=\"movie\"
4690                                                 value=\"lib/button/musicplayer.swf?song_url=$url\" />
4691                                         </object>";
4692                         }
4693                 }
4694
4695                 $filename = substr($url, strrpos($url, "/")+1);
4696
4697                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4698                         $filename . " (" . $ctype . ")" . "</a>";
4699
4700                 return $entry;
4701         }
4702
4703         function format_article($link, $id, $mark_as_read = true, $zoom_mode = false) {
4704
4705                 $rv = array();
4706
4707                 $rv['id'] = $id;
4708
4709                 /* we can figure out feed_id from article id anyway, why do we
4710                  * pass feed_id here? let's ignore the argument :( */
4711
4712                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4713                         WHERE ref_id = '$id'");
4714
4715                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4716
4717                 $rv['feed_id'] = $feed_id;
4718
4719                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
4720
4721                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
4722                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
4723
4724                 if (db_num_rows($result) == 1) {
4725                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4726                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
4727                 } else {
4728                         $rtl_content = false;
4729                         $always_display_enclosures = false;
4730                 }
4731
4732                 if ($rtl_content) {
4733                         $rtl_tag = "dir=\"RTL\"";
4734                         $rtl_class = "RTL";
4735                 } else {
4736                         $rtl_tag = "";
4737                         $rtl_class = "";
4738                 }
4739
4740                 if ($mark_as_read) {
4741                         $result = db_query($link, "UPDATE ttrss_user_entries
4742                                 SET unread = false,last_read = NOW()
4743                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4744
4745                         ccache_update($link, $feed_id, $_SESSION["uid"]);
4746                 }
4747
4748                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
4749                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
4750                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
4751                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
4752                         num_comments,
4753                         author,
4754                         orig_feed_id,
4755                         note
4756                         FROM ttrss_entries,ttrss_user_entries
4757                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
4758
4759                 if ($result) {
4760
4761                         $line = db_fetch_assoc($result);
4762
4763                         if ($line["icon_url"]) {
4764                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
4765                         } else {
4766                                 $feed_icon = "&nbsp;";
4767                         }
4768
4769                         $feed_site_url = $line['site_url'];
4770
4771                         $num_comments = $line["num_comments"];
4772                         $entry_comments = "";
4773
4774                         if ($num_comments > 0) {
4775                                 if ($line["comments"]) {
4776                                         $comments_url = $line["comments"];
4777                                 } else {
4778                                         $comments_url = $line["link"];
4779                                 }
4780                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
4781                         } else {
4782                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
4783                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
4784                                 }
4785                         }
4786
4787                         if ($zoom_mode) {
4788                                 header("Content-Type: text/html");
4789                                 $rv['content'] .= "<html><head>
4790                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
4791                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
4792                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
4793                                         </head><body>";
4794                         }
4795
4796                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
4797                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
4798
4799                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
4800
4801                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
4802                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
4803
4804                         $entry_author = $line["author"];
4805
4806                         if ($entry_author) {
4807                                 $entry_author = __(" - ") . $entry_author;
4808                         }
4809
4810                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
4811                                 false, true);
4812
4813                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
4814
4815                         if ($line["link"]) {
4816                                 $rv['content'] .= "<div clear='both'><a target='_blank'
4817                                         title=\"".htmlspecialchars($line['title'])."\"
4818                                         href=\"" .
4819                                         $line["link"] . "\">" .
4820                                         truncate_string($line["title"], 100) .
4821                                         "<span class='author'>$entry_author</span></a></div>";
4822                         } else {
4823                                 $rv['content'] .= "<div clear='both'>" . $line["title"] . "$entry_author</div>";
4824                         }
4825
4826                         $tags = get_article_tags($link, $id);
4827                         $tags_str = format_tags_string($tags, $id);
4828                         $tags_str_full = join(", ", $tags);
4829
4830                         if (!$tags_str_full) $tags_str_full = __("no tags");
4831
4832                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
4833
4834                         $rv['content'] .= "<div style='float : right'>
4835                                 <img src='".theme_image($link, 'images/tag.png')."'
4836                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
4837
4838                         if (!$zoom_mode) {
4839                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
4840                                         <a title=\"".__('Edit tags for this article')."\"
4841                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
4842
4843                                 $rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
4844                                         id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
4845                                         position=\"below\">$tags_str_full</div>";
4846
4847                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
4848                                                 class='tagsPic' style=\"cursor : pointer\"
4849                                                 onclick=\"postOpenInNewTab(event, $id)\"
4850                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
4851
4852                                 //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
4853
4854                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-pub-note.png')."\"
4855                                                 class='tagsPic' style=\"cursor : pointer\"
4856                                                 onclick=\"editArticleNote($id)\"
4857                                                 alt='PubNote' title='".__('Edit article note')."'>";
4858
4859                                 if (DIGEST_ENABLE) {
4860                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
4861                                                 class='tagsPic' style=\"cursor : pointer\"
4862                                                 onclick=\"emailArticle($id)\"
4863                                                 alt='Zoom' title='".__('Forward by email')."'>";
4864                                 }
4865
4866                                 if (ENABLE_TWEET_BUTTON) {
4867                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
4868                                                         class='tagsPic' style=\"cursor : pointer\"
4869                                                         onclick=\"tweetArticle($id)\"
4870                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
4871                                 }
4872
4873                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
4874                                                 class='tagsPic' style=\"cursor : pointer\"
4875                                                 onclick=\"closeArticlePanel($id)\"
4876                                                 alt='Zoom' title='".__('Close this panel')."'>";
4877
4878                         } else {
4879                                 $tags_str = strip_tags($tags_str);
4880                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
4881                         }
4882                         $rv['content'] .= "</div>";
4883                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
4884
4885                         if ($line["orig_feed_id"]) {
4886
4887                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
4888                                         WHERE id = ".$line["orig_feed_id"]);
4889
4890                                 if (db_num_rows($tmp_result) != 0) {
4891
4892                                         $rv['content'] .= "<div clear='both'>";
4893                                         $rv['content'] .= __("Originally from:");
4894
4895                                         $rv['content'] .= "&nbsp;";
4896
4897                                         $tmp_line = db_fetch_assoc($tmp_result);
4898
4899                                         $rv['content'] .= "<a target='_blank'
4900                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
4901                                                 $tmp_line['title'] . "</a>";
4902
4903                                         $rv['content'] .= "&nbsp;";
4904
4905                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
4906                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
4907
4908                                         $rv['content'] .= "</div>";
4909                                 }
4910                         }
4911
4912                         $rv['content'] .= "</div>";
4913
4914                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
4915                                 if ($line['note']) {
4916                                         $rv['content'] .= format_article_note($id, $line['note']);
4917                                 }
4918                         $rv['content'] .= "</div>";
4919
4920                         $rv['content'] .= "<div class=\"postIcon\">" .
4921                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
4922                                 href=\"".htmlspecialchars($feed_site_url)."\">".
4923                                 $feed_icon . "</a></div>";
4924
4925                         $rv['content'] .= "<div class=\"postContent\">";
4926
4927                         $article_content = sanitize_rss($link, $line["content"], false, false,
4928                                 $feed_site_url);
4929
4930                         $rv['content'] .= $article_content;
4931
4932                         $rv['content'] .= format_article_enclosures($link, $id,
4933                                 $always_display_enclosures, $article_content);
4934
4935                         $rv['content'] .= "</div>";
4936
4937                         $rv['content'] .= "</div>";
4938
4939                 }
4940
4941                 if ($zoom_mode) {
4942                         $rv['content'] .= "
4943                                 <div style=\"text-align : center\">
4944                                 <button onclick=\"return window.close()\">".
4945                                         __("Close this window")."</button></div>";
4946                         $rv['content'] .= "</body></html>";
4947                 }
4948
4949                 return $rv;
4950
4951         }
4952
4953         function format_headlines_list($link, $feed, $subop, $view_mode, $limit, $cat_view,
4954                                         $next_unread_feed, $offset, $vgr_last_feed = false,
4955                                         $override_order = false) {
4956
4957                 $disable_cache = false;
4958
4959                 $reply = array();
4960
4961                 $timing_info = getmicrotime();
4962
4963                 $topmost_article_ids = array();
4964
4965                 if (!$offset) $offset = 0;
4966                 if ($subop == "undefined") $subop = "";
4967
4968                 $subop_split = explode(":", $subop);
4969
4970 /*              if ($subop == "CatchupSelected") {
4971                         $ids = explode(",", db_escape_string($_REQUEST["ids"]));
4972                         $cmode = sprintf("%d", $_REQUEST["cmode"]);
4973
4974                         catchupArticlesById($link, $ids, $cmode);
4975                 } */
4976
4977                 if ($subop == "ForceUpdate" && sprintf("%d", $feed) > 0) {
4978                         update_rss_feed($link, $feed, true);
4979                 }
4980
4981                 if ($subop == "MarkAllRead")  {
4982                         catchup_feed($link, $feed, $cat_view);
4983
4984                         if (get_pref($link, 'ON_CATCHUP_SHOW_NEXT_FEED')) {
4985                                 if ($next_unread_feed) {
4986                                         $feed = $next_unread_feed;
4987                                 }
4988                         }
4989                 }
4990
4991                 if ($subop_split[0] == "MarkAllReadGR")  {
4992                         catchup_feed($link, $subop_split[1], false);
4993                 }
4994
4995                 // FIXME: might break tag display?
4996
4997                 if ($feed > 0 && !$cat_view) {
4998                         $result = db_query($link,
4999                                 "SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");
5000
5001                         if (db_num_rows($result) == 0) {
5002                                 $reply['content'] = "<div align='center'>".__('Feed not found.')."</div>";
5003                         }
5004                 }
5005
5006                 if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
5007
5008                         $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
5009                                 WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
5010
5011                         if (db_num_rows($result) == 1) {
5012                                 $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
5013                         } else {
5014                                 $rtl_content = false;
5015                         }
5016
5017                         if ($rtl_content) {
5018                                 $rtl_tag = "dir=\"RTL\"";
5019                         } else {
5020                                 $rtl_tag = "";
5021                         }
5022                 } else {
5023                         $rtl_tag = "";
5024                         $rtl_content = false;
5025                 }
5026
5027                 @$search = db_escape_string($_REQUEST["query"]);
5028
5029                 if ($search) {
5030                         $disable_cache = true;
5031                 }
5032
5033                 @$search_mode = db_escape_string($_REQUEST["search_mode"]);
5034                 @$match_on = db_escape_string($_REQUEST["match_on"]);
5035
5036                 if (!$match_on) {
5037                         $match_on = "both";
5038                 }
5039
5040                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H0", $timing_info);
5041
5042                 $qfh_ret = queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view,
5043                         $search, $search_mode, $match_on, $override_order, $offset);
5044
5045                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H1", $timing_info);
5046
5047                 $result = $qfh_ret[0];
5048                 $feed_title = $qfh_ret[1];
5049                 $feed_site_url = $qfh_ret[2];
5050                 $last_error = $qfh_ret[3];
5051
5052                 $vgroup_last_feed = $vgr_last_feed;
5053
5054                 if (!$offset) {
5055
5056                         if (db_num_rows($result) > 0) {
5057                                 $reply['toolbar'] = format_headline_subtoolbar($link, $feed_site_url,
5058                                         $feed_title,
5059                                         $feed, $cat_view, $search, $match_on, $search_mode, $view_mode,
5060                                         $last_error);
5061                         }
5062                 }
5063
5064                 $headlines_count = db_num_rows($result);
5065
5066                 if (db_num_rows($result) > 0) {
5067
5068                         $lnum = $offset;
5069
5070                         $num_unread = 0;
5071                         $cur_feed_title = '';
5072
5073                         $fresh_intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE") * 60 * 60;
5074
5075                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PS", $timing_info);
5076
5077                         while ($line = db_fetch_assoc($result)) {
5078
5079                                 $class = ($lnum % 2) ? "even" : "odd";
5080
5081                                 $id = $line["id"];
5082                                 $feed_id = $line["feed_id"];
5083
5084                                 $labels = get_article_labels($link, $id);
5085
5086                                 $labels_str = "<span id=\"HLLCTR-$id\">";
5087                                 $labels_str .= format_article_labels($labels, $id);
5088                                 $labels_str .= "</span>";
5089
5090                                 if (count($topmost_article_ids) < 3) {
5091                                         array_push($topmost_article_ids, $id);
5092                                 }
5093
5094                                 if ($line["last_read"] == "" && !sql_bool_to_bool($line["unread"])) {
5095
5096                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5097                                                 theme_image($link, 'images/updated.png')."\"
5098                                                 alt=\"Updated\">";
5099                                 } else {
5100                                         $update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\"
5101                                                 alt=\"Updated\">";
5102                                 }
5103
5104                                 if (sql_bool_to_bool($line["unread"]) &&
5105                                         time() - strtotime($line["updated_noms"]) < $fresh_intl) {
5106
5107                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5108                                                 theme_image($link, 'images/fresh_sign.png')."\" alt=\"Fresh\">";
5109                                 }
5110
5111                                 if ($line["unread"] == "t" || $line["unread"] == "1") {
5112                                         $class .= " Unread";
5113                                         ++$num_unread;
5114                                         $is_unread = true;
5115                                 } else {
5116                                         $is_unread = false;
5117                                 }
5118
5119                                 if ($line["marked"] == "t" || $line["marked"] == "1") {
5120                                         $marked_pic = "<img id=\"FMPIC-$id\"
5121                                                 src=\"".theme_image($link, 'images/mark_set.png')."\"
5122                                                 class=\"markedPic\" alt=\"Unstar article\"
5123                                                 onclick='javascript:tMark($id)'>";
5124                                 } else {
5125                                         $marked_pic = "<img id=\"FMPIC-$id\"
5126                                                 src=\"".theme_image($link, 'images/mark_unset.png')."\"
5127                                                 class=\"markedPic\" alt=\"Star article\"
5128                                                 onclick='javascript:tMark($id)'>";
5129                                 }
5130
5131                                 if ($line["published"] == "t" || $line["published"] == "1") {
5132                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5133                                                 'images/pub_set.png')."\"
5134                                                 class=\"markedPic\"
5135                                                 alt=\"Unpublish article\" onclick='javascript:tPub($id)'>";
5136                                 } else {
5137                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5138                                                 'images/pub_unset.png')."\"
5139                                                 class=\"markedPic\"
5140                                                 alt=\"Publish article\" onclick='javascript:tPub($id)'>";
5141                                 }
5142
5143 #                               $content_link = "<a target=\"_blank\" href=\"".$line["link"]."\">" .
5144 #                                       $line["title"] . "</a>";
5145
5146 #                               $content_link = "<a
5147 #                                       href=\"" . htmlspecialchars($line["link"]) . "\"
5148 #                                       onclick=\"view($id,$feed_id);\">" .
5149 #                                       $line["title"] . "</a>";
5150
5151 #                               $content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
5152 #                                       $line["title"] . "</a>";
5153
5154                                 $updated_fmt = make_local_datetime($link, $line["updated_noms"], false);
5155
5156                                 if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5157                                         $content_preview = truncate_string(strip_tags($line["content_preview"]),
5158                                                 100);
5159                                 }
5160
5161                                 $score = $line["score"];
5162
5163                                 $score_pic = theme_image($link,
5164                                         "images/" . get_score_pic($score));
5165
5166 /*                              $score_title = __("(Click to change)");
5167                                 $score_pic = "<img class='hlScorePic' src=\"images/$score_pic\"
5168                                         onclick=\"adjustArticleScore($id, $score)\" title=\"$score $score_title\">"; */
5169
5170                                 $score_pic = "<img class='hlScorePic' src=\"$score_pic\"
5171                                         title=\"$score\">";
5172
5173                                 if ($score > 500) {
5174                                         $hlc_suffix = "H";
5175                                 } else if ($score < -100) {
5176                                         $hlc_suffix = "L";
5177                                 } else {
5178                                         $hlc_suffix = "";
5179                                 }
5180
5181                                 $entry_author = $line["author"];
5182
5183                                 if ($entry_author) {
5184                                         $entry_author = " - $entry_author";
5185                                 }
5186
5187                                 $has_feed_icon = feed_has_icon($feed_id);
5188
5189                                 if ($has_feed_icon) {
5190                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5191                                 } else {
5192                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/feed-icon-12x12.png\" alt=\"\">";
5193                                 }
5194
5195                                 if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
5196
5197                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5198                                                 if ($feed_id != $vgroup_last_feed && $line["feed_title"]) {
5199
5200                                                         $cur_feed_title = $line["feed_title"];
5201                                                         $vgroup_last_feed = $feed_id;
5202
5203                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5204
5205                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5206
5207                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5208                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5209                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5210                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5211
5212                                                 }
5213                                         }
5214
5215                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5216                                                 onmouseout='postMouseOut($id)'";
5217
5218                                         $reply['content'] .= "<div class='$class' id='RROW-$id' $mouseover_attrs>";
5219
5220                                         $reply['content'] .= "<div class='hlUpdPic'>$update_pic</div>";
5221
5222                                         $reply['content'] .= "<div class='hlLeft'>";
5223
5224                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"tSR(this)\"
5225                                                         id=\"RCHK-$id\">";
5226
5227                                         $reply['content'] .= "$marked_pic";
5228                                         $reply['content'] .= "$published_pic";
5229
5230                                         $reply['content'] .= "</div>";
5231
5232                                         $reply['content'] .= "<div onclick='return hlClicked(event, $id)'
5233                                                 class=\"hlTitle\"><span class='hlContent$hlc_suffix'>";
5234                                         $reply['content'] .= "<a id=\"RTITLE-$id\"
5235                                                 href=\"" . htmlspecialchars($line["link"]) . "\"
5236                                                 onclick=\"\">" .
5237                                                 $line["title"];
5238
5239                                         if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5240                                                 if ($content_preview) {
5241                                                         $reply['content'] .= "<span class=\"contentPreview\"> - $content_preview</span>";
5242                                                 }
5243                                         }
5244
5245                                         $reply['content'] .= "</a></span>";
5246
5247                                         $reply['content'] .= $labels_str;
5248
5249                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED') &&
5250                                                 defined('_SHOW_FEED_TITLE_IN_VFEEDS')) {
5251                                                 if (@$line["feed_title"]) {
5252                                                         $reply['content'] .= "<span class=\"hlFeed\">
5253                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5254                                                                 $line["feed_title"]."</a>)
5255                                                         </span>";
5256                                                 }
5257                                         }
5258
5259                                         $reply['content'] .= "</div>";
5260
5261                                         $reply['content'] .= "<span class=\"hlUpdated\">$updated_fmt</span>";
5262                                         $reply['content'] .= "<div class=\"hlRight\">";
5263
5264                                         $reply['content'] .= $score_pic;
5265
5266                                         if ($line["feed_title"] && !get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5267
5268                                                 $reply['content'] .= "<span onclick=\"viewfeed($feed_id)\"
5269                                                         style=\"cursor : pointer\"
5270                                                         title=\"".htmlspecialchars($line['feed_title'])."\">
5271                                                         $feed_icon_img<span>";
5272                                         }
5273
5274                                         $reply['content'] .= "</div>";
5275                                         $reply['content'] .= "</div>";
5276
5277                                 } else {
5278
5279                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED') && $line["feed_title"]) {
5280                                                 if ($feed_id != $vgroup_last_feed) {
5281
5282                                                         $cur_feed_title = $line["feed_title"];
5283                                                         $vgroup_last_feed = $feed_id;
5284
5285                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5286
5287                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5288
5289                                                         $has_feed_icon = feed_has_icon($feed_id);
5290
5291                                                         if ($has_feed_icon) {
5292                                                                 $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5293                                                         } else {
5294                                                                 //$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
5295                                                         }
5296
5297                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5298                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5299                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5300                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5301                                                 }
5302                                         }
5303
5304                                         $expand_cdm = get_pref($link, 'CDM_EXPANDED');
5305
5306                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5307                                                 onmouseout='postMouseOut($id)'";
5308
5309                                         $reply['content'] .= "<div class=\"$class\"
5310                                                 id=\"RROW-$id\" $mouseover_attrs'>";
5311
5312                                         $reply['content'] .= "<div class=\"cdmHeader\">";
5313
5314                                         $reply['content'] .= "<div style='float : right'>";
5315                                         $reply['content'] .= "<span class='updated'>$updated_fmt</span>";
5316                                         $reply['content'] .= "$score_pic";
5317
5318                                         if (!get_pref($link, "VFEED_GROUP_BY_FEED") && $line["feed_title"]) {
5319                                                 $reply['content'] .= "<span style=\"cursor : pointer\"
5320                                                         title=\"".htmlspecialchars($line["feed_title"])."\"
5321                                                         onclick=\"viewfeed($feed_id)\">$feed_icon_img</span>";
5322                                         }
5323                                         $reply['content'] .= "<div class=\"updPic\">$update_pic</div>";
5324
5325                                         $reply['content'] .= "</div>";
5326
5327                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"toggleSelectRowById(this,
5328                                                         'RROW-$id')\" id=\"RCHK-$id\"/>";
5329
5330                                         $reply['content'] .= "$marked_pic";
5331                                         $reply['content'] .= "$published_pic";
5332
5333                                         $reply['content'] .= "<span id=\"RTITLE-$id\"
5334                                                 onclick=\"return cdmClicked(event, $id);\"
5335                                                 class=\"titleWrap$hlc_suffix\">
5336                                                 <a class=\"title\"
5337                                                 title=\"".htmlspecialchars($line['title'])."\"
5338                                                 target=\"_blank\" href=\"".
5339                                                 htmlspecialchars($line["link"])."\">".
5340                                                 truncate_string($line["title"], 100) .
5341                                                 " $entry_author</a>";
5342
5343                                         $reply['content'] .= $labels_str;
5344
5345                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED') &&
5346                                                 defined('_SHOW_FEED_TITLE_IN_VFEEDS')) {
5347                                                 if (@$line["feed_title"]) {
5348                                                         $reply['content'] .= "<span class=\"hlFeed\">
5349                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5350                                                                 $line["feed_title"]."</a>)
5351                                                         </span>";
5352                                                 }
5353                                         }
5354
5355                                         if (!$expand_cdm)
5356                                                 $content_hidden = "style=\"display : none\"";
5357                                         else
5358                                                 $excerpt_hidden = "style=\"display : none\"";
5359
5360                                         $reply['content'] .= "<span $excerpt_hidden
5361                                                 id=\"CEXC-$id\" class=\"cdmExcerpt\"> - $content_preview</span>";
5362
5363                                         $reply['content'] .= "</span>";
5364
5365                                         $reply['content'] .= "</div>";
5366
5367                                         $reply['content'] .= "<div class=\"cdmContent\" $content_hidden
5368                                                 onclick=\"return cdmClicked(event, $id);\"
5369                                                 id=\"CICD-$id\">";
5370
5371                                         $reply['content'] .= "<div class=\"cdmContentInner\">";
5372
5373                         if ($line["orig_feed_id"]) {
5374
5375                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
5376                                         WHERE id = ".$line["orig_feed_id"]);
5377
5378                                                 if (db_num_rows($tmp_result) != 0) {
5379
5380                                                         $reply['content'] .= "<div clear='both'>";
5381                                                         $reply['content'] .= __("Originally from:");
5382
5383                                                         $reply['content'] .= "&nbsp;";
5384
5385                                                         $tmp_line = db_fetch_assoc($tmp_result);
5386
5387                                                         $reply['content'] .= "<a target='_blank'
5388                                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
5389                                                                 $tmp_line['title'] . "</a>";
5390
5391                                                         $reply['content'] .= "&nbsp;";
5392
5393                                                         $reply['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
5394                                                         $reply['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
5395
5396                                                         $reply['content'] .= "</div>";
5397                                                 }
5398                                         }
5399
5400                                         // FIXME: make this less of a hack
5401
5402                                         $feed_site_url = false;
5403
5404                                         if ($line["feed_id"]) {
5405                                                 $tmp_result = db_query($link, "SELECT site_url FROM ttrss_feeds
5406                                                         WHERE id = " . $line["feed_id"]);
5407
5408                                                 if (db_num_rows($tmp_result) == 1) {
5409                                                         $feed_site_url = db_fetch_result($tmp_result, 0, "site_url");
5410                                                 }
5411                                         }
5412
5413                                         if ($expand_cdm) {
5414                                                 $article_content = sanitize_rss($link, $line["content_preview"],
5415                                                         false, false, $feed_site_url);
5416
5417                                                 if (!$article_content) $article_content = "&nbsp;";
5418                                         } else {
5419                                                 $article_content = '';
5420                                         }
5421
5422                                         $reply['content'] .= "<div id=\"POSTNOTE-$id\">";
5423                                         if ($line['note']) {
5424                                                 $reply['content'] .= format_article_note($id, $line['note']);
5425                                         }
5426                                         $reply['content'] .= "</div>";
5427
5428                                         $reply['content'] .= "<span id=\"CWRAP-$id\">$article_content</span>";
5429
5430                                         $tmp_result = db_query($link, "SELECT always_display_enclosures FROM
5431                                                 ttrss_feeds WHERE id = ".
5432                                                 (($line['feed_id'] == null) ? $line['orig_feed_id'] :
5433                                                                 $line['feed_id'])." AND owner_uid = ".$_SESSION["uid"]);
5434
5435                                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($tmp_result,
5436                                                 0, "always_display_enclosures"));
5437
5438                                         $reply['content'] .= format_article_enclosures($link, $id, $always_display_enclosures,
5439                                                 $article_content);
5440
5441                                         $reply['content'] .= "</div>";
5442
5443                                         $reply['content'] .= "<div class=\"cdmFooter\">";
5444
5445                                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
5446
5447                                         $reply['content'] .= "<img src='".theme_image($link,
5448                                                         'images/tag.png')."' alt='Tags' title='Tags'>
5449                                                 <span id=\"ATSTR-$id\">$tags_str</span>
5450                                                 <a title=\"".__('Edit tags for this article')."\"
5451                                                 href=\"#\" onclick=\"editArticleTags($id, $feed_id, true)\">(+)</a>";
5452
5453                                         $reply['content'] .= "<div style=\"float : right\">";
5454
5455                                         $reply['content'] .= "<img src=\"images/art-zoom.png\"
5456                                                 onclick=\"zoomToArticle(event, $id)\"
5457                                                 style=\"cursor : pointer\"
5458                                                 alt='Zoom'
5459                                                 title='".__('Open article in new tab')."'>";
5460
5461                                         //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
5462
5463                                         $reply['content'] .= "<img src=\"images/art-pub-note.png\"
5464                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5465                                                 onclick=\"editArticleNote($id)\"
5466                                                 alt='PubNote' title='".__('Edit article note')."'>";
5467
5468                                         if (DIGEST_ENABLE) {
5469                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
5470                                                         style=\"cursor : pointer\"
5471                                                         onclick=\"emailArticle($id)\"
5472                                                         alt='Zoom' title='".__('Forward by email')."'>";
5473                                         }
5474
5475                                         if (ENABLE_TWEET_BUTTON) {
5476                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
5477                                                         class='tagsPic' style=\"cursor : pointer\"
5478                                                         onclick=\"tweetArticle($id)\"
5479                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
5480                                         }
5481
5482                                         $reply['content'] .= "<img src=\"images/digest_checkbox.png\"
5483                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5484                                                 onclick=\"dismissArticle($id)\"
5485                                                 alt='Dismiss' title='".__('Dismiss article')."'>";
5486
5487                                         $reply['content'] .= "</div>";
5488                                         $reply['content'] .= "</div>";
5489
5490                                         $reply['content'] .= "</div>";
5491
5492                                         $reply['content'] .= "</div>";
5493
5494                                 }
5495
5496                                 ++$lnum;
5497                         }
5498
5499                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PE", $timing_info);
5500
5501                 } else {
5502                         $message = "";
5503
5504                         switch ($view_mode) {
5505                                 case "unread":
5506                                         $message = __("No unread articles found to display.");
5507                                         break;
5508                                 case "updated":
5509                                         $message = __("No updated articles found to display.");
5510                                         break;
5511                                 case "marked":
5512                                         $message = __("No starred articles found to display.");
5513                                         break;
5514                                 default:
5515                                         if ($feed < -10) {
5516                                                 $message = __("No articles found to display. You can assign articles to labels manually (see the Actions menu above) or use a filter.");
5517                                         } else {
5518                                                 $message = __("No articles found to display.");
5519                                         }
5520                         }
5521
5522                         if (!$offset && $message) {
5523                                 $reply['content'] .= "<div class='whiteBox'>$message";
5524
5525                                 $reply['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
5526
5527                                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
5528                                         WHERE owner_uid = " . $_SESSION['uid']);
5529
5530                                 $last_updated = db_fetch_result($result, 0, "last_updated");
5531                                 $last_updated = make_local_datetime($link, $last_updated, false);
5532
5533                                 $reply['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
5534
5535                                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
5536                                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
5537
5538                                 $num_errors = db_fetch_result($result, 0, "num_errors");
5539
5540                                 if ($num_errors > 0) {
5541                                         $reply['content'] .= "<br/>";
5542                                         $reply['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
5543                                                 __('Some feeds have update errors (click for details)')."</a>";
5544                                 }
5545                                 $reply['content'] .= "</span></p></div>";
5546                         }
5547                 }
5548
5549                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H2", $timing_info);
5550
5551                 return array($topmost_article_ids, $headlines_count, $feed, $disable_cache,
5552                         $vgroup_last_feed, $reply);
5553         }
5554
5555 // from here: http://www.roscripts.com/Create_tag_cloud-71.html
5556
5557         function printTagCloud($link) {
5558
5559                 $query = "SELECT tag_name, COUNT(post_int_id) AS count
5560                         FROM ttrss_tags WHERE owner_uid = ".$_SESSION["uid"]."
5561                         GROUP BY tag_name ORDER BY count DESC LIMIT 50";
5562
5563                 $result = db_query($link, $query);
5564
5565                 $tags = array();
5566
5567                 while ($line = db_fetch_assoc($result)) {
5568                         $tags[$line["tag_name"]] = $line["count"];
5569                 }
5570
5571         if( count($tags) == 0 ){ return; }
5572
5573                 ksort($tags);
5574
5575                 $max_size = 32; // max font size in pixels
5576                 $min_size = 11; // min font size in pixels
5577
5578                 // largest and smallest array values
5579                 $max_qty = max(array_values($tags));
5580                 $min_qty = min(array_values($tags));
5581
5582                 // find the range of values
5583                 $spread = $max_qty - $min_qty;
5584                 if ($spread == 0) { // we don't want to divide by zero
5585                                 $spread = 1;
5586                 }
5587
5588                 // set the font-size increment
5589                 $step = ($max_size - $min_size) / ($spread);
5590
5591                 // loop through the tag array
5592                 foreach ($tags as $key => $value) {
5593                         // calculate font-size
5594                         // find the $value in excess of $min_qty
5595                         // multiply by the font-size increment ($size)
5596                         // and add the $min_size set above
5597                         $size = round($min_size + (($value - $min_qty) * $step));
5598
5599                         $key_escaped = str_replace("'", "\\'", $key);
5600
5601                         echo "<a href=\"javascript:viewfeed('$key_escaped') \" style=\"font-size: " .
5602                                 $size . "px\" title=\"$value articles tagged with " .
5603                                 $key . '">' . $key . '</a> ';
5604                 }
5605         }
5606
5607         function print_checkpoint($n, $s) {
5608                 $ts = getmicrotime();
5609                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
5610                 return $ts;
5611         }
5612
5613         function sanitize_tag($tag) {
5614                 $tag = trim($tag);
5615
5616                 $tag = mb_strtolower($tag, 'utf-8');
5617
5618                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
5619
5620 //              $tag = str_replace('"', "", $tag);
5621 //              $tag = str_replace("+", " ", $tag);
5622                 $tag = str_replace("technorati tag: ", "", $tag);
5623
5624                 return $tag;
5625         }
5626
5627         function get_self_url_prefix() {
5628                 return SELF_URL_PATH;
5629         }
5630
5631         function opml_publish_url($link){
5632
5633                 $url_path = get_self_url_prefix();
5634                 $url_path .= "/opml.php?op=publish&key=" .
5635                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
5636
5637                 return $url_path;
5638         }
5639
5640         /**
5641          * Purge a feed contents, marked articles excepted.
5642          *
5643          * @param mixed $link The database connection.
5644          * @param integer $id The id of the feed to purge.
5645          * @return void
5646          */
5647         function clear_feed_articles($link, $id) {
5648
5649                 if ($id != 0) {
5650                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5651                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5652                 } else {
5653                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5654                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5655                 }
5656
5657                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
5658                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
5659
5660                 ccache_update($link, $id, $_SESSION['uid']);
5661         } // function clear_feed_articles
5662
5663         /**
5664          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
5665          *
5666          * @return string The Mozilla Firefox feed adding URL.
5667          */
5668         function add_feed_url() {
5669                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
5670
5671                 $url_path = get_self_url_prefix() .
5672                         "/backend.php?op=pref-feeds&quiet=1&subop=add&feed_url=%s";
5673                 return $url_path;
5674         } // function add_feed_url
5675
5676         /**
5677          * Encrypt a password in SHA1.
5678          *
5679          * @param string $pass The password to encrypt.
5680          * @param string $login A optionnal login.
5681          * @return string The encrypted password.
5682          */
5683         function encrypt_password($pass, $login = '') {
5684                 if ($login) {
5685                         return "SHA1X:" . sha1("$login:$pass");
5686                 } else {
5687                         return "SHA1:" . sha1($pass);
5688                 }
5689         } // function encrypt_password
5690
5691         /**
5692          * Update a feed batch.
5693          * Used by daemons to update n feeds by run.
5694          * Only update feed needing a update, and not being processed
5695          * by another process.
5696          *
5697          * @param mixed $link Database link
5698          * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
5699          * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
5700          * @param boolean $debug Set to false to disable debug output. Default to true.
5701          * @return void
5702          */
5703         function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
5704                 // Process all other feeds using last_updated and interval parameters
5705
5706                 // Test if the user has loggued in recently. If not, it does not update its feeds.
5707                 if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
5708                         if (DB_TYPE == "pgsql") {
5709                                 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
5710                         } else {
5711                                 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
5712                         }
5713                 } else {
5714                         $login_thresh_qpart = "";
5715                 }
5716
5717                 // Test if the feed need a update (update interval exceded).
5718                 if (DB_TYPE == "pgsql") {
5719                         $update_limit_qpart = "AND ((
5720                                         ttrss_feeds.update_interval = 0
5721                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
5722                                 ) OR (
5723                                         ttrss_feeds.update_interval > 0
5724                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
5725                                 ) OR ttrss_feeds.last_updated IS NULL)";
5726                 } else {
5727                         $update_limit_qpart = "AND ((
5728                                         ttrss_feeds.update_interval = 0
5729                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
5730                                 ) OR (
5731                                         ttrss_feeds.update_interval > 0
5732                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
5733                                 ) OR ttrss_feeds.last_updated IS NULL)";
5734                 }
5735
5736                 // Test if feed is currently being updated by another process.
5737                 if (DB_TYPE == "pgsql") {
5738                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
5739                 } else {
5740                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
5741                 }
5742
5743                 // Test if there is a limit to number of updated feeds
5744                 $query_limit = "";
5745                 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
5746
5747                 $random_qpart = sql_random_function();
5748
5749                 // We search for feed needing update.
5750                 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
5751                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
5752                                 ttrss_feeds.update_interval
5753                         FROM
5754                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
5755                         WHERE
5756                                 ttrss_feeds.owner_uid = ttrss_users.id
5757                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
5758                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
5759                                 $login_thresh_qpart $update_limit_qpart
5760                          $updstart_thresh_qpart
5761                         ORDER BY $random_qpart $query_limit");
5762
5763                 $user_prefs_cache = array();
5764
5765                 if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
5766
5767                 // Here is a little cache magic in order to minimize risk of double feed updates.
5768                 $feeds_to_update = array();
5769                 while ($line = db_fetch_assoc($result)) {
5770                         $feeds_to_update[$line['id']] = $line;
5771                 }
5772
5773                 // We update the feed last update started date before anything else.
5774                 // There is no lag due to feed contents downloads
5775                 // It prevent an other process to update the same feed.
5776                 $feed_ids = array_keys($feeds_to_update);
5777                 if($feed_ids) {
5778                         db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
5779                                 WHERE id IN (%s)", implode(',', $feed_ids)));
5780                 }
5781
5782                 // For each feed, we call the feed update function.
5783                 while ($line = array_pop($feeds_to_update)) {
5784
5785                         if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
5786
5787                         update_rss_feed($link, $line["id"], true);
5788
5789                         sleep(1); // prevent flood (FIXME make this an option?)
5790                 }
5791
5792                 // Send feed digests by email if needed.
5793                 if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
5794
5795         } // function update_daemon_common
5796
5797         function sanitize_article_content($text) {
5798                 # we don't support CDATA sections in articles, they break our own escaping
5799                 $text = preg_replace("/\[\[CDATA/", "", $text);
5800                 $text = preg_replace("/\]\]\>/", "", $text);
5801                 return $text;
5802         }
5803
5804         function load_filters($link, $feed, $owner_uid, $action_id = false) {
5805                 $filters = array();
5806
5807                 global $memcache;
5808
5809                 $obj_id = md5("FILTER:$feed:$owner_uid:$action_id");
5810
5811                 if ($memcache && $obj = $memcache->get($obj_id)) {
5812
5813                         return $obj;
5814
5815                 } else {
5816
5817                         if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
5818
5819                         $result = db_query($link, "SELECT reg_exp,
5820                                 ttrss_filter_types.name AS name,
5821                                 ttrss_filter_actions.name AS action,
5822                                 inverse,
5823                                 action_param,
5824                                 filter_param
5825                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
5826                                         enabled = true AND
5827                                         $ftype_query_part
5828                                         owner_uid = $owner_uid AND
5829                                         ttrss_filter_types.id = filter_type AND
5830                                         ttrss_filter_actions.id = action_id AND
5831                                         (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
5832
5833                         while ($line = db_fetch_assoc($result)) {
5834                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
5835                                         $filter["reg_exp"] = $line["reg_exp"];
5836                                         $filter["action"] = $line["action"];
5837                                         $filter["action_param"] = $line["action_param"];
5838                                         $filter["filter_param"] = $line["filter_param"];
5839                                         $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
5840
5841                                         array_push($filters[$line["name"]], $filter);
5842                                 }
5843
5844                         if ($memcache) $memcache->add($obj_id, $filters, 0, 3600*8);
5845
5846                         return $filters;
5847                 }
5848         }
5849
5850         function get_score_pic($score) {
5851                 if ($score > 100) {
5852                         return "score_high.png";
5853                 } else if ($score > 0) {
5854                         return "score_half_high.png";
5855                 } else if ($score < -100) {
5856                         return "score_low.png";
5857                 } else if ($score < 0) {
5858                         return "score_half_low.png";
5859                 } else {
5860                         return "score_neutral.png";
5861                 }
5862         }
5863
5864         function rounded_table_start($classname, $header = "&nbsp;") {
5865                 print "<table width='100%' class='$classname' cellspacing='0' cellpadding='0'>";
5866                 print "<tr><td class='c1'>&nbsp;</td><td class='top'>$header</td><td class='c2'>&nbsp;</td></tr>";
5867                 print "<tr><td class='left'>&nbsp;</td><td class='content'>";
5868         }
5869
5870         function rounded_table_end($footer = "&nbsp;") {
5871                 print "</td><td class='right'>&nbsp;</td></tr>";
5872                 print "<tr><td class='c4'>&nbsp;</td><td class='bottom'>$footer</td><td class='c3'>&nbsp;</td></tr>";
5873                 print "</table>";
5874         }
5875
5876         function feed_has_icon($id) {
5877                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
5878         }
5879
5880         function init_connection($link) {
5881                 if (DB_TYPE == "pgsql") {
5882                         pg_query($link, "set client_encoding = 'UTF-8'");
5883                         pg_set_client_encoding("UNICODE");
5884                         pg_query($link, "set datestyle = 'ISO, european'");
5885                         pg_query($link, "set TIME ZONE 0");
5886                 } else {
5887                         db_query($link, "SET time_zone = '+0:0'");
5888
5889                         if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
5890                                 db_query($link, "SET NAMES " . MYSQL_CHARSET);
5891         //                      db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
5892                         }
5893                 }
5894         }
5895
5896         function update_feedbrowser_cache($link) {
5897
5898                 $result = db_query($link, "SELECT feed_url, site_url, title, COUNT(id) AS subscribers
5899                         FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5900                                 WHERE tf.feed_url = ttrss_feeds.feed_url
5901                                 AND (private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%'))
5902                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
5903
5904                 db_query($link, "BEGIN");
5905
5906                 db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
5907
5908                 $count = 0;
5909
5910                 while ($line = db_fetch_assoc($result)) {
5911                         $subscribers = db_escape_string($line["subscribers"]);
5912                         $feed_url = db_escape_string($line["feed_url"]);
5913                         $title = db_escape_string($line["title"]);
5914                         $site_url = db_escape_string($line["site_url"]);
5915
5916                         $tmp_result = db_query($link, "SELECT subscribers FROM
5917                                 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
5918
5919                         if (db_num_rows($tmp_result) == 0) {
5920
5921                                 db_query($link, "INSERT INTO ttrss_feedbrowser_cache
5922                                         (feed_url, site_url, title, subscribers) VALUES ('$feed_url',
5923                                                 '$site_url', '$title', '$subscribers')");
5924
5925                                 ++$count;
5926
5927                         }
5928
5929                 }
5930
5931                 db_query($link, "COMMIT");
5932
5933                 return $count;
5934
5935         }
5936
5937         function ccache_zero($link, $feed_id, $owner_uid) {
5938                 db_query($link, "UPDATE ttrss_counters_cache SET
5939                         value = 0, updated = NOW() WHERE
5940                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5941         }
5942
5943         function ccache_zero_all($link, $owner_uid) {
5944                 db_query($link, "UPDATE ttrss_counters_cache SET
5945                         value = 0 WHERE owner_uid = '$owner_uid'");
5946
5947                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
5948                         value = 0 WHERE owner_uid = '$owner_uid'");
5949         }
5950
5951         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
5952
5953                 if (!$is_cat) {
5954                         $table = "ttrss_counters_cache";
5955                 } else {
5956                         $table = "ttrss_cat_counters_cache";
5957                 }
5958
5959                 db_query($link, "DELETE FROM $table WHERE
5960                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5961
5962         }
5963
5964         function ccache_update_all($link, $owner_uid) {
5965
5966                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
5967
5968                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
5969                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5970
5971                         while ($line = db_fetch_assoc($result)) {
5972                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
5973                         }
5974
5975                         /* We have to manually include category 0 */
5976
5977                         ccache_update($link, 0, $owner_uid, true);
5978
5979                 } else {
5980                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
5981                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5982
5983                         while ($line = db_fetch_assoc($result)) {
5984                                 print ccache_update($link, $line["feed_id"], $owner_uid);
5985
5986                         }
5987
5988                 }
5989         }
5990
5991         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
5992                 $no_update = false) {
5993
5994                 if (!is_numeric($feed_id)) return;
5995
5996                 if (!$is_cat) {
5997                         $table = "ttrss_counters_cache";
5998                         if ($feed_id > 0) {
5999                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
6000                                         WHERE id = '$feed_id'");
6001                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
6002                         }
6003                 } else {
6004                         $table = "ttrss_cat_counters_cache";
6005                 }
6006
6007                 if (DB_TYPE == "pgsql") {
6008                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
6009                 } else if (DB_TYPE == "mysql") {
6010                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
6011                 }
6012
6013                 $result = db_query($link, "SELECT value FROM $table
6014                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
6015                         LIMIT 1");
6016
6017                 if (db_num_rows($result) == 1) {
6018                         return db_fetch_result($result, 0, "value");
6019                 } else {
6020                         if ($no_update) {
6021                                 return -1;
6022                         } else {
6023                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
6024                         }
6025                 }
6026
6027         }
6028
6029         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
6030                 $update_pcat = true) {
6031
6032                 if (!is_numeric($feed_id)) return;
6033
6034                 if (!$is_cat && $feed_id > 0) {
6035                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
6036                                 WHERE id = '$feed_id'");
6037                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
6038                 }
6039
6040                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
6041
6042                 /* When updating a label, all we need to do is recalculate feed counters
6043                  * because labels are not cached */
6044
6045                 if ($feed_id < 0) {
6046                         ccache_update_all($link, $owner_uid);
6047                         return;
6048                 }
6049
6050                 if (!$is_cat) {
6051                         $table = "ttrss_counters_cache";
6052                 } else {
6053                         $table = "ttrss_cat_counters_cache";
6054                 }
6055
6056                 if ($is_cat && $feed_id >= 0) {
6057                         if ($feed_id != 0) {
6058                                 $cat_qpart = "cat_id = '$feed_id'";
6059                         } else {
6060                                 $cat_qpart = "cat_id IS NULL";
6061                         }
6062
6063                         /* Recalculate counters for child feeds */
6064
6065                         $result = db_query($link, "SELECT id FROM ttrss_feeds
6066                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
6067
6068                         while ($line = db_fetch_assoc($result)) {
6069                                 ccache_update($link, $line["id"], $owner_uid, false, false);
6070                         }
6071
6072                         $result = db_query($link, "SELECT SUM(value) AS sv
6073                                 FROM ttrss_counters_cache, ttrss_feeds
6074                                 WHERE id = feed_id AND $cat_qpart AND
6075                                 ttrss_feeds.owner_uid = '$owner_uid'");
6076
6077                         $unread = (int) db_fetch_result($result, 0, "sv");
6078
6079                 } else {
6080                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
6081                 }
6082
6083                 db_query($link, "BEGIN");
6084
6085                 $result = db_query($link, "SELECT feed_id FROM $table
6086                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
6087
6088                 if (db_num_rows($result) == 1) {
6089                         db_query($link, "UPDATE $table SET
6090                                 value = '$unread', updated = NOW() WHERE
6091                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
6092
6093                 } else {
6094                         db_query($link, "INSERT INTO $table
6095                                 (feed_id, value, owner_uid, updated)
6096                                 VALUES
6097                                 ($feed_id, $unread, $owner_uid, NOW())");
6098                 }
6099
6100                 db_query($link, "COMMIT");
6101
6102                 if ($feed_id > 0 && $prev_unread != $unread) {
6103
6104                         if (!$is_cat) {
6105
6106                                 /* Update parent category */
6107
6108                                 if ($update_pcat) {
6109
6110                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
6111                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
6112
6113                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
6114
6115                                         ccache_update($link, $cat_id, $owner_uid, true);
6116
6117                                 }
6118                         }
6119                 } else if ($feed_id < 0) {
6120                         ccache_update_all($link, $owner_uid);
6121                 }
6122
6123                 return $unread;
6124         }
6125
6126         function ccache_cleanup($link, $owner_uid) {
6127
6128                 db_query($link, "DELETE FROM ttrss_counters_cache AS c1 WHERE
6129                         (SELECT count(*) FROM ttrss_counters_cache AS c2
6130                                 WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
6131                                 AND owner_uid = '$owner_uid'");
6132
6133                 db_query($link, "DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
6134                         (SELECT count(*) FROM ttrss_cat_counters_cache AS c2
6135                                 WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
6136                                         AND owner_uid = '$owner_uid'");
6137         }
6138
6139         function label_find_id($link, $label, $owner_uid) {
6140                 $result = db_query($link,
6141                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
6142                                 AND owner_uid = '$owner_uid' LIMIT 1");
6143
6144                 if (db_num_rows($result) == 1) {
6145                         return db_fetch_result($result, 0, "id");
6146                 } else {
6147                         return 0;
6148                 }
6149         }
6150
6151         function get_article_labels($link, $id) {
6152                 global $memcache;
6153
6154                 $obj_id = md5("LABELS:$id:" . $_SESSION["uid"]);
6155
6156                 $rv = array();
6157
6158                 if ($memcache && $obj = $memcache->get($obj_id)) {
6159                         return $obj;
6160                 } else {
6161
6162                         $result = db_query($link, "SELECT label_cache FROM
6163                                 ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
6164                                 $_SESSION["uid"]);
6165
6166                         $label_cache = db_fetch_result($result, 0, "label_cache");
6167
6168                         if ($label_cache) {
6169
6170                                 $label_cache = json_decode($label_cache, true);
6171
6172                                 if ($label_cache["no-labels"] == 1)
6173                                         return $rv;
6174                                 else
6175                                         return $label_cache;
6176                         }
6177
6178                         $result = db_query($link,
6179                                 "SELECT DISTINCT label_id,caption,fg_color,bg_color
6180                                         FROM ttrss_labels2, ttrss_user_labels2
6181                                 WHERE id = label_id
6182                                         AND article_id = '$id'
6183                                         AND owner_uid = ".$_SESSION["uid"] . "
6184                                 ORDER BY caption");
6185
6186                         while ($line = db_fetch_assoc($result)) {
6187                                 $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
6188                                         $line["bg_color"]);
6189                                 array_push($rv, $rk);
6190                         }
6191                         if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6192
6193                         if (count($rv) > 0)
6194                                 label_update_cache($link, $id, $rv);
6195                         else
6196                                 label_update_cache($link, $id, array("no-labels" => 1));
6197                 }
6198
6199                 return $rv;
6200         }
6201
6202
6203         function label_find_caption($link, $label, $owner_uid) {
6204                 $result = db_query($link,
6205                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
6206                                 AND owner_uid = '$owner_uid' LIMIT 1");
6207
6208                 if (db_num_rows($result) == 1) {
6209                         return db_fetch_result($result, 0, "caption");
6210                 } else {
6211                         return "";
6212                 }
6213         }
6214
6215         function label_update_cache($link, $id, $labels = false, $force = false) {
6216
6217                 if ($force)
6218                         label_clear_cache($link, $id);
6219
6220                 if (!$labels)
6221                         $labels = get_article_labels($link, $id);
6222
6223                 $labels = db_escape_string(json_encode($labels));
6224
6225                 db_query($link, "UPDATE ttrss_user_entries SET
6226                         label_cache = '$labels' WHERE ref_id = '$id'");
6227
6228         }
6229
6230         function label_clear_cache($link, $id) {
6231
6232                 db_query($link, "UPDATE ttrss_user_entries SET
6233                         label_cache = '' WHERE ref_id = '$id'");
6234
6235         }
6236
6237         function label_remove_article($link, $id, $label, $owner_uid) {
6238
6239                 $label_id = label_find_id($link, $label, $owner_uid);
6240
6241                 if (!$label_id) return;
6242
6243                 $result = db_query($link,
6244                         "DELETE FROM ttrss_user_labels2
6245                         WHERE
6246                                 label_id = '$label_id' AND
6247                                 article_id = '$id'");
6248
6249                 label_clear_cache($link, $id);
6250         }
6251
6252         function label_add_article($link, $id, $label, $owner_uid) {
6253
6254                 global $memcache;
6255
6256                 if ($memcache) {
6257                         $obj_id = md5("LABELS:$id:$owner_uid");
6258                         $memcache->delete($obj_id);
6259                 }
6260
6261                 $label_id = label_find_id($link, $label, $owner_uid);
6262
6263                 if (!$label_id) return;
6264
6265                 $result = db_query($link,
6266                         "SELECT
6267                                 article_id FROM ttrss_labels2, ttrss_user_labels2
6268                         WHERE
6269                                 label_id = id AND
6270                                 label_id = '$label_id' AND
6271                                 article_id = '$id' AND owner_uid = '$owner_uid'
6272                         LIMIT 1");
6273
6274                 if (db_num_rows($result) == 0) {
6275                         db_query($link, "INSERT INTO ttrss_user_labels2
6276                                 (label_id, article_id) VALUES ('$label_id', '$id')");
6277                 }
6278
6279                 label_clear_cache($link, $id);
6280
6281         }
6282
6283         function label_remove($link, $id, $owner_uid) {
6284                 global $memcache;
6285
6286                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6287
6288                 if ($memcache) {
6289                         $obj_id = md5("LABELS:$id:$owner_uid");
6290                         $memcache->delete($obj_id);
6291                 }
6292
6293                 db_query($link, "BEGIN");
6294
6295                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6296                         WHERE id = '$id'");
6297
6298                 $caption = db_fetch_result($result, 0, "caption");
6299
6300                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
6301                         AND owner_uid = " . $owner_uid);
6302
6303                 if (db_affected_rows($link, $result) != 0 && $caption) {
6304
6305                         /* Remove access key for the label */
6306
6307                         $ext_id = -11 - $id;
6308
6309                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6310                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
6311
6312                         /* Disable filters that reference label being removed */
6313
6314                         db_query($link, "UPDATE ttrss_filters SET
6315                                 enabled = false WHERE action_param = '$caption'
6316                                         AND action_id = 7
6317                                         AND owner_uid = " . $owner_uid);
6318
6319                         /* Remove cached data */
6320
6321                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
6322                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
6323
6324                 }
6325
6326                 db_query($link, "COMMIT");
6327         }
6328
6329         function label_create($link, $caption) {
6330
6331                 db_query($link, "BEGIN");
6332
6333                 $result = false;
6334
6335                 $result = db_query($link, "SELECT id FROM ttrss_labels2
6336                         WHERE caption = '$caption' AND owner_uid =  ". $_SESSION["uid"]);
6337
6338                 if (db_num_rows($result) == 0) {
6339                         $result = db_query($link,
6340                                 "INSERT INTO ttrss_labels2 (caption,owner_uid)
6341                                         VALUES ('$caption', '".$_SESSION["uid"]."')");
6342
6343                         $result = db_affected_rows($link, $result) != 0;
6344                 }
6345
6346                 db_query($link, "COMMIT");
6347
6348                 return $result;
6349         }
6350
6351         function print_labels_headlines_dropdown($link, $feed_id) {
6352                 print "<option value=\"addLabel()\">".__("Create label...")."</option>";
6353
6354                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2 WHERE
6355                         owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6356
6357                 while ($line = db_fetch_assoc($result)) {
6358
6359                         $label_id = $line["id"];
6360                         $label_caption = $line["caption"];
6361                         $id = $line["id"];
6362
6363                         if ($feed_id < -10 && $feed_id == -11-$label_id) {
6364                                 print "<option id=\"LHDL-$id\"
6365                                         value=\"selectionRemoveLabel($label_id)\">".
6366                                         __('Remove:') . " $label_caption</option>";
6367                         } else {
6368                                 print "<option id=\"LHDL-$id\"
6369                                         value=\"selectionAssignLabel($label_id)\">".
6370                                         __('Assign:') . " $label_caption</option>";
6371                         }
6372                 }
6373         }
6374
6375         function format_tags_string($tags, $id) {
6376
6377                 $tags_str = "";
6378                 $tags_nolinks_str = "";
6379
6380                 $num_tags = 0;
6381
6382                 $tag_limit = 6;
6383
6384                 $formatted_tags = array();
6385
6386                 foreach ($tags as $tag) {
6387                         $num_tags++;
6388                         $tag_escaped = str_replace("'", "\\'", $tag);
6389
6390                         if (mb_strlen($tag) > 30) {
6391                                 $tag = truncate_string($tag, 30);
6392                         }
6393
6394                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
6395
6396                         array_push($formatted_tags, $tag_str);
6397
6398                         $tmp_tags_str = implode(", ", $formatted_tags);
6399
6400                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
6401                                 break;
6402                         }
6403                 }
6404
6405                 $tags_str = implode(", ", $formatted_tags);
6406
6407                 if ($num_tags < count($tags)) {
6408                         $tags_str .= ", &hellip;";
6409                 }
6410
6411                 if ($num_tags == 0) {
6412                         $tags_str = __("no tags");
6413                 }
6414
6415                 return $tags_str;
6416
6417         }
6418
6419         function format_article_labels($labels, $id) {
6420
6421                 $labels_str = "";
6422
6423                 foreach ($labels as $l) {
6424                         $labels_str .= sprintf("<span class='hlLabelRef'
6425                                 style='color : %s; background-color : %s'>%s</span>",
6426                                         $l[2], $l[3], $l[1]);
6427                         }
6428
6429                 return $labels_str;
6430
6431         }
6432
6433         function format_article_note($id, $note) {
6434
6435                 $str = "<div class='articleNote'        onclick=\"editArticleNote($id)\">
6436                         <div class='noteEdit' onclick=\"editArticleNote($id)\">".
6437                         __('(edit note)')."</div>$note</div>";
6438
6439                 return $str;
6440         }
6441
6442         function toggle_collapse_cat($link, $cat_id, $mode) {
6443                 if ($cat_id > 0) {
6444                         $mode = bool_to_sql_bool($mode);
6445
6446                         db_query($link, "UPDATE ttrss_feed_categories SET
6447                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
6448                                 $_SESSION["uid"]);
6449                 } else {
6450                         $pref_name = '';
6451
6452                         switch ($cat_id) {
6453                         case -1:
6454                                 $pref_name = '_COLLAPSED_SPECIAL';
6455                                 break;
6456                         case -2:
6457                                 $pref_name = '_COLLAPSED_LABELS';
6458                                 break;
6459                         case 0:
6460                                 $pref_name = '_COLLAPSED_UNCAT';
6461                                 break;
6462                         }
6463
6464                         if ($pref_name) {
6465                                 if ($mode) {
6466                                         set_pref($link, $pref_name, 'true');
6467                                 } else {
6468                                         set_pref($link, $pref_name, 'false');
6469                                 }
6470                         }
6471                 }
6472         }
6473
6474         function remove_feed($link, $id, $owner_uid) {
6475
6476                 if ($id > 0) {
6477
6478                         /* save starred articles in Archived feed */
6479
6480                         db_query($link, "BEGIN");
6481
6482                         /* prepare feed if necessary */
6483
6484                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6485                                 WHERE id = '$id'");
6486
6487                         if (db_num_rows($result) == 0) {
6488                                 db_query($link, "INSERT INTO ttrss_archived_feeds
6489                                         (id, owner_uid, title, feed_url, site_url)
6490                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6491                                 WHERE id = '$id'");
6492                         }
6493
6494                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
6495                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
6496                                         marked = true AND owner_uid = $owner_uid");
6497
6498                         /* Remove access key for the feed */
6499
6500                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6501                                 feed_id = '$id' AND owner_uid = $owner_uid");
6502
6503                         /* remove the feed */
6504
6505                         db_query($link, "DELETE FROM ttrss_feeds
6506                                         WHERE id = '$id' AND owner_uid = $owner_uid");
6507
6508                         db_query($link, "COMMIT");
6509
6510 /*                      if (file_exists(ICONS_DIR . "/$id.ico")) {
6511                                 unlink(ICONS_DIR . "/$id.ico");
6512                         } */
6513
6514                         ccache_remove($link, $id, $owner_uid);
6515
6516                 } else {
6517                         label_remove($link, -11-$id, $owner_uid);
6518                         ccache_remove($link, -11-$id, $owner_uid);
6519                 }
6520         }
6521
6522         function add_feed_category($link, $feed_cat) {
6523
6524                 if (!$feed_cat) return false;
6525
6526                 db_query($link, "BEGIN");
6527
6528                 $result = db_query($link,
6529                         "SELECT id FROM ttrss_feed_categories
6530                         WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
6531
6532                 if (db_num_rows($result) == 0) {
6533
6534                         $result = db_query($link,
6535                                 "INSERT INTO ttrss_feed_categories (owner_uid,title)
6536                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
6537
6538                         db_query($link, "COMMIT");
6539
6540                         return true;
6541                 }
6542
6543                 return false;
6544         }
6545
6546         function remove_feed_category($link, $id, $owner_uid) {
6547
6548                 db_query($link, "DELETE FROM ttrss_feed_categories
6549                         WHERE id = '$id' AND owner_uid = $owner_uid");
6550
6551                 ccache_remove($link, $id, $owner_uid, true);
6552         }
6553
6554         function archive_article($link, $id, $owner_uid) {
6555                 db_query($link, "BEGIN");
6556
6557                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6558                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
6559
6560                 if (db_num_rows($result) != 0) {
6561
6562                         /* prepare the archived table */
6563
6564                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
6565
6566                         if ($feed_id) {
6567                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6568                                         WHERE id = '$feed_id'");
6569
6570                                 if (db_num_rows($result) == 0) {
6571                                         db_query($link, "INSERT INTO ttrss_archived_feeds
6572                                                 (id, owner_uid, title, feed_url, site_url)
6573                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6574                                         WHERE id = '$feed_id'");
6575                                 }
6576
6577                                 db_query($link, "UPDATE ttrss_user_entries
6578                                         SET orig_feed_id = feed_id, feed_id = NULL
6579                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6580                         }
6581                 }
6582
6583                 db_query($link, "COMMIT");
6584         }
6585
6586         function getArticleFeed($link, $id) {
6587                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6588                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6589
6590                 if (db_num_rows($result) != 0) {
6591                         return db_fetch_result($result, 0, "feed_id");
6592                 } else {
6593                         return 0;
6594                 }
6595         }
6596
6597         function make_url_from_parts($parts) {
6598                 $url = $parts['scheme'] . '://' . $parts['host'];
6599
6600                 if ($parts['path']) $url .= $parts['path'];
6601                 if ($parts['query']) $url .= '?' . $parts['query'];
6602
6603                 return $url;
6604         }
6605
6606         /**
6607          * Fixes incomplete URLs by prepending "http://".
6608          * Also replaces feed:// with http://, and
6609          * prepends a trailing slash if the url is a domain name only.
6610          *
6611          * @param string $url Possibly incomplete URL
6612          *
6613          * @return string Fixed URL.
6614          */
6615         function fix_url($url) {
6616                 if (strpos($url, '://') === false) {
6617                         $url = 'http://' . $url;
6618                 } else if (substr($url, 0, 5) == 'feed:') {
6619                         $url = 'http:' . substr($url, 5);
6620                 }
6621
6622                 //prepend slash if the URL has no slash in it
6623                 // "http://www.example" -> "http://www.example/"
6624                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
6625                         $url .= '/';
6626                 }
6627
6628                 if ($url != "http:///")
6629                         return $url;
6630                 else
6631                         return '';
6632         }
6633
6634         function validate_feed_url($url) {
6635                 $parts = parse_url($url);
6636
6637                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
6638
6639         }
6640
6641         function get_article_enclosures($link, $id) {
6642
6643                 global $memcache;
6644
6645                 $query = "SELECT * FROM ttrss_enclosures
6646                         WHERE post_id = '$id' AND content_url != ''";
6647
6648                 $obj_id = md5("ENCLOSURES:$id");
6649
6650                 $rv = array();
6651
6652                 if ($memcache && $obj = $memcache->get($obj_id)) {
6653                         $rv = $obj;
6654                 } else {
6655                         $result = db_query($link, $query);
6656
6657                         if (db_num_rows($result) > 0) {
6658                                 while ($line = db_fetch_assoc($result)) {
6659                                         array_push($rv, $line);
6660                                 }
6661                                 if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6662                         }
6663                 }
6664
6665                 return $rv;
6666         }
6667
6668         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset) {
6669
6670                         $feeds = array();
6671
6672                         /* Labels */
6673
6674                         if ($cat_id == -4 || $cat_id == -2) {
6675                                 $counters = getLabelCounters($link, true);
6676
6677                                 foreach (array_values($counters) as $cv) {
6678
6679                                         $unread = $cv["counter"];
6680
6681                                         if ($unread || !$unread_only) {
6682
6683                                                 $row = array(
6684                                                                 "id" => $cv["id"],
6685                                                                 "title" => $cv["description"],
6686                                                                 "unread" => $cv["counter"],
6687                                                                 "cat_id" => -2,
6688                                                         );
6689
6690                                                 array_push($feeds, $row);
6691                                         }
6692                                 }
6693                         }
6694
6695                         /* Virtual feeds */
6696
6697                         if ($cat_id == -4 || $cat_id == -1) {
6698                                 foreach (array(-1, -2, -3, -4, 0) as $i) {
6699                                         $unread = getFeedUnread($link, $i);
6700
6701                                         if ($unread || !$unread_only) {
6702                                                 $title = getFeedTitle($link, $i);
6703
6704                                                 $row = array(
6705                                                                 "id" => $i,
6706                                                                 "title" => $title,
6707                                                                 "unread" => $unread,
6708                                                                 "cat_id" => -1,
6709                                                         );
6710                                                 array_push($feeds, $row);
6711                                         }
6712
6713                                 }
6714                         }
6715
6716                         /* Real feeds */
6717
6718                         if ($limit) {
6719                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
6720                         } else {
6721                                 $limit_qpart = "";
6722                         }
6723
6724                         if ($cat_id == -4 || $cat_id == -3) {
6725                                 $result = db_query($link, "SELECT
6726                                         id, feed_url, cat_id, title, ".
6727                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6728                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
6729                                                 " ORDER BY cat_id, title " . $limit_qpart);
6730                         } else {
6731
6732                                 if ($cat_id)
6733                                         $cat_qpart = "cat_id = '$cat_id'";
6734                                 else
6735                                         $cat_qpart = "cat_id IS NULL";
6736
6737                                 $result = db_query($link, "SELECT
6738                                         id, feed_url, cat_id, title, ".
6739                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6740                                                 FROM ttrss_feeds WHERE
6741                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
6742                                                 " ORDER BY cat_id, title " . $limit_qpart);
6743                         }
6744
6745                         while ($line = db_fetch_assoc($result)) {
6746
6747                                 $unread = getFeedUnread($link, $line["id"]);
6748
6749                                 $has_icon = feed_has_icon($line['id']);
6750
6751                                 if ($unread || !$unread_only) {
6752
6753                                         $row = array(
6754                                                         "feed_url" => $line["feed_url"],
6755                                                         "title" => $line["title"],
6756                                                         "id" => (int)$line["id"],
6757                                                         "unread" => (int)$unread,
6758                                                         "has_icon" => $has_icon,
6759                                                         "cat_id" => (int)$line["cat_id"],
6760                                                         "last_updated" => strtotime($line["last_updated"])
6761                                                 );
6762
6763                                         array_push($feeds, $row);
6764                                 }
6765                         }
6766
6767                 return $feeds;
6768         }
6769
6770         function api_get_headlines($link, $feed_id, $limit, $offset,
6771                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
6772                                 $include_attachments) {
6773
6774                         /* do not rely on params below */
6775
6776                         $search = db_escape_string($_REQUEST["search"]);
6777                         $search_mode = db_escape_string($_REQUEST["search_mode"]);
6778                         $match_on = db_escape_string($_REQUEST["match_on"]);
6779
6780                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
6781                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
6782                                 $order, $offset);
6783
6784                         $result = $qfh_ret[0];
6785                         $feed_title = $qfh_ret[1];
6786
6787                         $headlines = array();
6788
6789                         while ($line = db_fetch_assoc($result)) {
6790                                 $is_updated = ($line["last_read"] == "" &&
6791                                         ($line["unread"] != "t" && $line["unread"] != "1"));
6792
6793                                 $headline_row = array(
6794                                                 "id" => (int)$line["id"],
6795                                                 "unread" => sql_bool_to_bool($line["unread"]),
6796                                                 "marked" => sql_bool_to_bool($line["marked"]),
6797                                                 "published" => sql_bool_to_bool($line["published"]),
6798                                                 "updated" => strtotime($line["updated"]),
6799                                                 "is_updated" => $is_updated,
6800                                                 "title" => $line["title"],
6801                                                 "link" => $line["link"],
6802                                                 "feed_id" => $line["feed_id"],
6803                                                 "tags" => get_article_tags($link, $line["id"]),
6804                                         );
6805
6806                                         if ($include_attachments)
6807                                                 $headline_row['attachments'] = get_article_enclosures($link,
6808                                                         $line['id']);
6809
6810                                 if ($show_excerpt) {
6811                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
6812                                         $headline_row["excerpt"] = $excerpt;
6813                                 }
6814
6815                                 if ($show_content) {
6816                                         $headline_row["content"] = $line["content_preview"];
6817                                 }
6818
6819                                 array_push($headlines, $headline_row);
6820                         }
6821
6822                         return $headlines;
6823         }
6824
6825         function generate_error_feed($link, $error) {
6826                 $reply = array();
6827
6828                 $reply['headlines']['id'] = -6;
6829                 $reply['headlines']['is_cat'] = false;
6830
6831                 $reply['headlines']['toolbar'] = '';
6832                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
6833
6834                 $reply['headlines-info'] = array("count" => 0,
6835                         "vgroup_last_feed" => '',
6836                         "unread" => 0,
6837                         "disable_cache" => true);
6838
6839                 return $reply;
6840         }
6841
6842
6843         function generate_dashboard_feed($link) {
6844                 $reply = array();
6845
6846                 $reply['headlines']['id'] = -5;
6847                 $reply['headlines']['is_cat'] = false;
6848
6849                 $reply['headlines']['toolbar'] = '';
6850                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
6851
6852                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
6853
6854                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
6855                         WHERE owner_uid = " . $_SESSION['uid']);
6856
6857                 $last_updated = db_fetch_result($result, 0, "last_updated");
6858                 $last_updated = make_local_datetime($link, $last_updated, false);
6859
6860                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
6861
6862                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
6863                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
6864
6865                 $num_errors = db_fetch_result($result, 0, "num_errors");
6866
6867                 if ($num_errors > 0) {
6868                         $reply['headlines']['content'] .= "<br/>";
6869                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
6870                                 __('Some feeds have update errors (click for details)')."</a>";
6871                 }
6872                 $reply['headlines']['content'] .= "</span></p>";
6873
6874                 $reply['headlines-info'] = array("count" => 0,
6875                         "vgroup_last_feed" => '',
6876                         "unread" => 0,
6877                         "disable_cache" => true);
6878
6879                 return $reply;
6880         }
6881
6882         function save_email_address($link, $email) {
6883                 // FIXME: implement persistent storage of emails
6884
6885                 if (!$_SESSION['stored_emails'])
6886                         $_SESSION['stored_emails'] = array();
6887
6888                 if (!in_array($email, $_SESSION['stored_emails']))
6889                         array_push($_SESSION['stored_emails'], $email);
6890         }
6891
6892         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6893                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6894
6895                 $sql_is_cat = bool_to_sql_bool($is_cat);
6896
6897                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6898                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6899                         AND owner_uid = " . $owner_uid);
6900
6901                 if (db_num_rows($result) == 1) {
6902                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6903
6904                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
6905                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
6906                                 AND owner_uid = " . $owner_uid);
6907
6908                         return $key;
6909
6910                 } else {
6911                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
6912                 }
6913         }
6914
6915         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6916
6917                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6918
6919                 $sql_is_cat = bool_to_sql_bool($is_cat);
6920
6921                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6922                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6923                         AND owner_uid = " . $owner_uid);
6924
6925                 if (db_num_rows($result) == 1) {
6926                         return db_fetch_result($result, 0, "access_key");
6927                 } else {
6928                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6929
6930                         $result = db_query($link, "INSERT INTO ttrss_access_keys
6931                                 (access_key, feed_id, is_cat, owner_uid)
6932                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
6933
6934                         return $key;
6935                 }
6936                 return false;
6937         }
6938
6939         /**
6940          * Extracts RSS/Atom feed URLs from the given HTML URL.
6941          *
6942          * @param string $url HTML page URL
6943          *
6944          * @return array Array of feeds. Key is the full URL, value the title
6945          */
6946         function get_feeds_from_html($url, $login = false, $pass = false)
6947         {
6948                 $url     = fix_url($url);
6949                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
6950
6951                 libxml_use_internal_errors(true);
6952
6953                 $content = @fetch_file_contents($url, false, $login, $pass);
6954
6955                 $doc = new DOMDocument();
6956                 $doc->loadHTML($content);
6957                 $xpath = new DOMXPath($doc);
6958                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
6959                 $feedUrls = array();
6960                 foreach ($entries as $entry) {
6961                         if ($entry->hasAttribute('href')) {
6962                                 $title = $entry->getAttribute('title');
6963                                 if ($title == '') {
6964                                         $title = $entry->getAttribute('type');
6965                                 }
6966                                 $feedUrl = rewrite_relative_url(
6967                                         $baseUrl, $entry->getAttribute('href')
6968                                 );
6969                                 $feedUrls[$feedUrl] = $title;
6970                         }
6971                 }
6972                 return $feedUrls;
6973         }
6974
6975         /**
6976          * Checks if the content behind the given URL is a HTML file
6977          *
6978          * @param string $url URL to check
6979          *
6980          * @return boolean True if the URL contains HTML content
6981          */
6982         function url_is_html($url, $login = false, $pass = false) {
6983                 $content = substr(fetch_file_contents($url, false, $login, $pass), 0, 1000);
6984
6985                 if (stripos($content, '<html>') === false
6986                         && stripos($content, '<html ') === false
6987                 ) {
6988                         return false;
6989                 }
6990
6991                 return true;
6992         }
6993
6994         function print_label_select($link, $name, $value, $attributes = "") {
6995
6996                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6997                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6998
6999                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
7000                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
7001
7002                 while ($line = db_fetch_assoc($result)) {
7003
7004                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
7005
7006                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
7007                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
7008
7009                 }
7010
7011 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
7012
7013                 print "</select>";
7014
7015
7016         }
7017
7018         function format_article_enclosures($link, $id, $always_display_enclosures,
7019                                         $article_content) {
7020
7021                 $result = get_article_enclosures($link, $id);
7022                 $rv = '';
7023
7024                 if (count($result) > 0) {
7025
7026                         $entries_html = array();
7027                         $entries = array();
7028
7029                         foreach ($result as $line) {
7030
7031                                 $url = $line["content_url"];
7032                                 $ctype = $line["content_type"];
7033
7034                                 if (!$ctype) $ctype = __("unknown type");
7035
7036 #                               $filename = substr($url, strrpos($url, "/")+1);
7037
7038                                 $entry = format_inline_player($link, $url, $ctype);
7039
7040 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
7041 #                                       $filename . " (" . $ctype . ")" . "</a>";
7042
7043                                 array_push($entries_html, $entry);
7044
7045                                 $entry = array();
7046
7047                                 $entry["type"] = $ctype;
7048                                 $entry["filename"] = $filename;
7049                                 $entry["url"] = $url;
7050
7051                                 array_push($entries, $entry);
7052                         }
7053
7054                         $rv .= "<div class=\"postEnclosures\">";
7055
7056                         if (!get_pref($link, "STRIP_IMAGES")) {
7057                                 if ($always_display_enclosures ||
7058                                                         !preg_match("/<img/i", $article_content)) {
7059
7060                                         foreach ($entries as $entry) {
7061
7062                                                 if (preg_match("/image/", $entry["type"]) ||
7063                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
7064
7065                                                                 $rv .= "<p><img
7066                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
7067                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
7068                                                 }
7069                                         }
7070                                 }
7071                         }
7072
7073                         if (count($entries) == 1) {
7074                                 $rv .= __("Attachment:") . " ";
7075                         } else {
7076                                 $rv .= __("Attachments:") . " ";
7077                         }
7078
7079                         $rv .= join(", ", $entries_html);
7080
7081                         $rv .= "</div>";
7082                 }
7083
7084                 return $rv;
7085         }
7086
7087         function getLastArticleId($link) {
7088                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
7089                         WHERE owner_uid = " . $_SESSION["uid"]);
7090
7091                 if (db_num_rows($result) == 1) {
7092                         return db_fetch_result($result, 0, "id");
7093                 } else {
7094                         return -1;
7095                 }
7096         }
7097
7098         function build_url($parts) {
7099                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
7100         }
7101
7102         /**
7103          * Converts a (possibly) relative URL to a absolute one.
7104          *
7105          * @param string $url     Base URL (i.e. from where the document is)
7106          * @param string $rel_url Possibly relative URL in the document
7107          *
7108          * @return string Absolute URL
7109          */
7110         function rewrite_relative_url($url, $rel_url) {
7111                 if (strpos($rel_url, "://") !== false) {
7112                         return $rel_url;
7113                 } else if (strpos($rel_url, "/") === 0)
7114                 {
7115                         $parts = parse_url($url);
7116                         $parts['path'] = $rel_url;
7117
7118                         return build_url($parts);
7119
7120                 } else {
7121                         $parts = parse_url($url);
7122                         if (!isset($parts['path'])) {
7123                                 $parts['path'] = '/';
7124                         }
7125                         $dir = $parts['path'];
7126                         if (substr($dir, -1) !== '/') {
7127                                 $dir = dirname($parts['path']);
7128                                 $dir !== '/' && $dir .= '/';
7129                         }
7130                         $parts['path'] = $dir . $rel_url;
7131
7132                         return build_url($parts);
7133                 }
7134         }
7135
7136         function sphinx_search($query, $offset = 0, $limit = 30) {
7137                 $sphinxClient = new SphinxClient();
7138
7139                 $sphinxClient->SetServer('localhost', 9312);
7140                 $sphinxClient->SetConnectTimeout(1);
7141
7142                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
7143                         'feed_title' => 20));
7144
7145                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
7146                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
7147                 $sphinxClient->SetLimits($offset, $limit, 1000);
7148                 $sphinxClient->SetArrayResult(false);
7149                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
7150
7151                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
7152
7153                 $ids = array();
7154
7155                 if (is_array($result['matches'])) {
7156                         foreach (array_keys($result['matches']) as $int_id) {
7157                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
7158                                 array_push($ids, $ref_id);
7159                         }
7160                 }
7161
7162                 return $ids;
7163         }
7164
7165         function cleanup_tags($link, $days = 14, $limit = 1000) {
7166
7167                 if (DB_TYPE == "pgsql") {
7168                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
7169                 } else if (DB_TYPE == "mysql") {
7170                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
7171                 }
7172
7173                 $tags_deleted = 0;
7174
7175                 while ($limit > 0) {
7176                         $limit_part = 500;
7177
7178                         $query = "SELECT ttrss_tags.id AS id
7179                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
7180                                 WHERE post_int_id = int_id AND $interval_query AND
7181                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
7182
7183                         $result = db_query($link, $query);
7184
7185                         $ids = array();
7186
7187                         while ($line = db_fetch_assoc($result)) {
7188                                 array_push($ids, $line['id']);
7189                         }
7190
7191                         if (count($ids) > 0) {
7192                                 $ids = join(",", $ids);
7193                                 print ".";
7194
7195                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
7196                                 $tags_deleted += db_affected_rows($link, $tmp_result);
7197                         } else {
7198                                 break;
7199                         }
7200
7201                         $limit -= $limit_part;
7202                 }
7203
7204                 print "\n";
7205
7206                 return $tags_deleted;
7207         }
7208
7209         function feedlist_init_cat($link, $cat_id, $hidden = false) {
7210                 $obj = array();
7211                 $cat_id = (int) $cat_id;
7212
7213                 if ($cat_id > 0) {
7214                         $cat_unread = ccache_find($link, $cat_id, $_SESSION["uid"], true);
7215                 } else if ($cat_id == 0 || $cat_id == -2) {
7216                         $cat_unread = getCategoryUnread($link, $cat_id);
7217                 }
7218
7219                 $obj['id'] = 'CAT:' . $cat_id;
7220                 $obj['items'] = array();
7221                 $obj['name'] = getCategoryTitle($link, $cat_id);
7222                 $obj['type'] = 'feed';
7223                 $obj['unread'] = (int) $cat_unread;
7224                 $obj['hidden'] = $hidden;
7225                 $obj['bare_id'] = $cat_id;
7226
7227                 return $obj;
7228         }
7229
7230         function feedlist_init_feed($link, $feed_id, $title = false, $unread = false, $error = '', $updated = '') {
7231                 $obj = array();
7232                 $feed_id = (int) $feed_id;
7233
7234                 if (!$title)
7235                         $title = getFeedTitle($link, $feed_id, false);
7236
7237                 if ($unread === false)
7238                         $unread = getFeedUnread($link, $feed_id, false);
7239
7240                 $obj['id'] = 'FEED:' . $feed_id;
7241                 $obj['name'] = $title;
7242                 $obj['unread'] = (int) $unread;
7243                 $obj['type'] = 'feed';
7244                 $obj['error'] = $error;
7245                 $obj['updated'] = $updated;
7246                 $obj['icon'] = getFeedIcon($feed_id);
7247                 $obj['bare_id'] = $feed_id;
7248
7249                 return $obj;
7250         }
7251
7252
7253         function fetch_twitter_rss($link, $url, $owner_uid) {
7254                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
7255                         WHERE id = $owner_uid");
7256
7257                 $access_token = json_decode(db_fetch_result($result, 0, 'twitter_oauth'), true);
7258                 $url_escaped = db_escape_string($url);
7259
7260                 if ($access_token) {
7261
7262                         $tmhOAuth = new tmhOAuth(array(
7263                                 'consumer_key'    => CONSUMER_KEY,
7264                                 'consumer_secret' => CONSUMER_SECRET,
7265                                 'user_token' => $access_token['oauth_token'],
7266                                 'user_secret' => $access_token['oauth_token_secret'],
7267                         ));
7268
7269                         $code = $tmhOAuth->request('GET', $url);
7270
7271                         if ($code == 200) {
7272
7273                                 $content = $tmhOAuth->response['response'];
7274
7275                                 define('MAGPIE_CACHE_ON', false);
7276
7277                                 $rss = new MagpieRSS($content, MAGPIE_OUTPUT_ENCODING,
7278                                         MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING );
7279
7280                                 return $rss;
7281
7282                         } else {
7283
7284                                 db_query($link, "UPDATE ttrss_feeds
7285                                         SET last_error = 'OAuth authorization failed ($code).'
7286                                         WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7287                         }
7288
7289                 } else {
7290
7291                         db_query($link, "UPDATE ttrss_feeds
7292                                 SET last_error = 'OAuth information not found.'
7293                                 WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7294
7295                         return false;
7296                 }
7297         }
7298
7299         function print_user_stylesheet($link) {
7300                 $value = get_pref($link, 'USER_STYLESHEET');
7301
7302                 if ($value) {
7303                         print "<style type=\"text/css\">";
7304                         print str_replace("<br/>", "\n", $value);
7305                         print "</style>";
7306                 }
7307
7308         }
7309
7310         function rewrite_urls($line) {
7311                 global $url_regex;
7312
7313                 $urls = null;
7314
7315                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
7316                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
7317
7318                 return $result;
7319         }
7320
7321         function filter_to_sql($filter) {
7322                 $query = "";
7323
7324                 if (DB_TYPE == "pgsql")
7325                         $reg_qpart = "~";
7326                 else
7327                         $reg_qpart = "REGEXP";
7328
7329                 switch ($filter["type"]) {
7330                         case "title":
7331                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
7332                                         $filter['reg_exp'] . "')";
7333                                 break;
7334                         case "content":
7335                                 $query = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
7336                                         $filter['reg_exp'] . "')";
7337                                 break;
7338                         case "both":
7339                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
7340                                         $filter['reg_exp'] . "') OR LOWER(" .
7341                                         "ttrss_entries.content) $reg_qpart LOWER('" . $filter['reg_exp'] . "')";
7342                                 break;
7343                         case "tag":
7344                                 $query = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
7345                                         $filter['reg_exp'] . "')";
7346                                 break;
7347                         case "link":
7348                                 $query = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
7349                                         $filter['reg_exp'] . "')";
7350                                 break;
7351                         case "date":
7352
7353                                 if ($filter["filter_param"] == "before")
7354                                         $cmp_qpart = "<";
7355                                 else
7356                                         $cmp_qpart = ">=";
7357
7358                                 $timestamp = date("Y-m-d H:N:s", strtotime($filter["reg_exp"]));
7359                                 $query = "ttrss_entries.date_entered $cmp_qpart '$timestamp'";
7360                                 break;
7361                         case "author":
7362                                 $query = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
7363                                         $filter['reg_exp'] . "')";
7364                                 break;
7365                 }
7366
7367                 if ($filter["inverse"])
7368                         $query = "NOT ($query)";
7369
7370                 if ($query) {
7371                         if (DB_TYPE == "pgsql") {
7372                                 $query = " ($query) AND ttrss_entries.date_entered > NOW() - INTERVAL '14 days'";
7373                         } else {
7374                                 $query = " ($query) AND ttrss_entries.date_entered > DATE_SUB(NOW(), INTERVAL 14 DAY)";
7375                         }
7376                         $query .= " AND ";
7377                 }
7378
7379
7380                 return $query;
7381         }
7382
7383         // Status codes:
7384         // -1  - never connected
7385         // 0   - no data received
7386         // 1   - data received successfully
7387         // 2   - did not receive valid data
7388         // >10 - server error, code + 10 (e.g. 16 means server error 6)
7389
7390         function get_linked_feeds($link, $instance_id = false) {
7391                 if ($instance_id)
7392                         $instance_qpart = "id = '$instance_id' AND ";
7393                 else
7394                         $instance_qpart = "";
7395
7396                 if (DB_TYPE == "pgsql") {
7397                         $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'";
7398                 } else {
7399                         $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)";
7400                 }
7401
7402                 $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances
7403                         WHERE $instance_qpart $date_qpart ORDER BY last_connected");
7404
7405                 while ($line = db_fetch_assoc($result)) {
7406                         $id = $line['id'];
7407
7408                         _debug("Updating: " . $line['access_url'] . " ($id)");
7409
7410                         $fetch_url = $line['access_url'] . '/backend.php?op=fbexport';
7411                         $post_query = 'key=' . $line['access_key'];
7412
7413                         $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
7414
7415                         if ($feeds) {
7416                                 $feeds = json_decode($feeds, true);
7417
7418                                 if ($feeds) {
7419                                         if ($feeds['error']) {
7420                                                 $status = $feeds['error']['code'] + 10;
7421                                         } else {
7422                                                 $status = 1;
7423
7424                                                 if (count($feeds['feeds']) > 0) {
7425
7426                                                         db_query($link, "DELETE FROM ttrss_linked_feeds
7427                                                                 WHERE instance_id = '$id'");
7428
7429                                                         foreach ($feeds['feeds'] as $feed) {
7430                                                                 $feed_url = db_escape_string($feed['feed_url']);
7431                                                                 $title = db_escape_string($feed['title']);
7432                                                                 $subscribers = db_escape_string($feed['subscribers']);
7433                                                                 $site_url = db_escape_string($feed['site_url']);
7434
7435                                                                 db_query($link, "INSERT INTO ttrss_linked_feeds
7436                                                                         (feed_url, site_url, title, subscribers, instance_id, created, updated)
7437                                                                 VALUES
7438                                                                         ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())");
7439                                                         }
7440                                                 } else {
7441                                                         // received 0 feeds, this might indicate that
7442                                                         // the instance on the other hand is rebuilding feedbrowser cache
7443                                                         // we will try again later
7444
7445                                                         // TODO: maybe perform expiration based on updated here?
7446                                                 }
7447
7448                                                 _debug("Processed " . count($feeds['feeds']) . " feeds.");
7449                                         }
7450                                 } else {
7451                                         $status = 2;
7452                                 }
7453
7454                         } else {
7455                                 $status = 0;
7456                         }
7457
7458                         _debug("Status: $status");
7459
7460                         db_query($link, "UPDATE ttrss_linked_instances SET
7461                                 last_status_out = '$status', last_connected = NOW() WHERE id = '$id'");
7462
7463                 }
7464
7465         }
7466 ?>