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         if (ENABLE_TRANSLATIONS == true) { // If translations are enabled.
  46                 require_once "lib/accept-to-gettext.php";
  47                 require_once "lib/gettext/gettext.inc";
  48
  49                 function startup_gettext() {
  50
  51                         # Get locale from Accept-Language header
  52                         $lang = al2gt(array_keys(get_translations()), "text/html");
  53
  54                         if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
  55                                 $lang = _TRANSLATION_OVERRIDE_DEFAULT;
  56                         }
  57
  58                         if ($_COOKIE["ttrss_lang"] && $_COOKIE["ttrss_lang"] != "auto") {
  59                                 $lang = $_COOKIE["ttrss_lang"];
  60                         }
  61
  62                         /* In login action of mobile version */
  63                         if ($_POST["language"] && defined('MOBILE_VERSION')) {
  64                                 $lang = $_POST["language"];
  65                                 $_COOKIE["ttrss_lang"] = $lang;
  66                         }
  67
  68                         if ($lang) {
  69                                 if (defined('LC_MESSAGES')) {
  70                                         _setlocale(LC_MESSAGES, $lang);
  71                                 } else if (defined('LC_ALL')) {
  72                                         _setlocale(LC_ALL, $lang);
  73                                 } else {
  74                                         die("can't setlocale(): please set ENABLE_TRANSLATIONS to false in config.php");
  75                                 }
  76
  77                                 if (defined('MOBILE_VERSION')) {
  78                                         _bindtextdomain("messages", "../locale");
  79                                 } else {
  80                                         _bindtextdomain("messages", "locale");
  81                                 }
  82
  83                                 _textdomain("messages");
  84                                 _bind_textdomain_codeset("messages", "UTF-8");
  85                         }
  86                 }
  87
  88                 startup_gettext();
  89
  90         } else { // If translations are enabled.
  91                 function __($msg) {
  92                         return $msg;
  93                 }
  94                 function startup_gettext() {
  95                         // no-op
  96                         return true;
  97                 }
  98         } // If translations are enabled.
  99
 100         if (defined('MEMCACHE_SERVER')) {
 101                 $memcache = new Memcache;
 102                 $memcache->connect(MEMCACHE_SERVER, 11211);
 103         }
 104
 105         require_once 'db-prefs.php';
 106         require_once 'errors.php';
 107         require_once 'version.php';
 108
 109         require_once 'lib/phpmailer/class.phpmailer.php';
 110         require_once 'lib/sphinxapi.php';
 111         require_once 'lib/twitteroauth/twitteroauth.php';
 112
 113         //define('MAGPIE_USER_AGENT_EXT', ' (Tiny Tiny RSS/' . VERSION . ')');
 114         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
 115         define('MAGPIE_CACHE_AGE', 60*15); // 15 minutes
 116
 117         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 118         define('MAGPIE_USER_AGENT', SELF_USER_AGENT);
 119
 120         ini_set('user_agent', SELF_USER_AGENT);
 121
 122         require_once "lib/simplepie/simplepie.inc";
 123         require_once "lib/magpierss/rss_fetch.inc";
 124         require_once 'lib/magpierss/rss_utils.inc';
 125         require_once 'lib/htmlpurifier/library/HTMLPurifier.auto.php';
 126
 127         $config = HTMLPurifier_Config::createDefault();
 128
 129         $allowed = "p,a[href],i,em,b,strong,code,pre,blockquote,br,img[src|alt|title],ul,ol,li,h1,h2,h3,h4";
 130
 131         $config->set('HTML', 'Allowed', $allowed);
 132         $purifier = new HTMLPurifier($config);
 133
 134         /**
 135          * Print a timestamped debug message.
 136          *
 137          * @param string $msg The debug message.
 138          * @return void
 139          */
 140         function _debug($msg) {
 141                 $ts = strftime("%H:%M:%S", time());
 142                 if (function_exists('posix_getpid')) {
 143                         $ts = "$ts/" . posix_getpid();
 144                 }
 145                 print "[$ts] $msg\n";
 146         } // function _debug
 147
 148         /**
 149          * Purge a feed old posts.
 150          *
 151          * @param mixed $link A database connection.
 152          * @param mixed $feed_id The id of the purged feed.
 153          * @param mixed $purge_interval Olderness of purged posts.
 154          * @param boolean $debug Set to True to enable the debug. False by default.
 155          * @access public
 156          * @return void
 157          */
 158         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 159
 160                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
 161
 162                 $rows = -1;
 163
 164                 $result = db_query($link,
 165                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 166
 167                 $owner_uid = false;
 168
 169                 if (db_num_rows($result) == 1) {
 170                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 171                 }
 172
 173                 if ($purge_interval == -1 || !$purge_interval) {
 174                         if ($owner_uid) {
 175                                 ccache_update($link, $feed_id, $owner_uid);
 176                         }
 177                         return;
 178                 }
 179
 180                 if (!$owner_uid) return;
 181
 182                 if (FORCE_ARTICLE_PURGE == 0) {
 183                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
 184                                 $owner_uid, false);
 185                 } else {
 186                         $purge_unread = true;
 187                         $purge_interval = FORCE_ARTICLE_PURGE;
 188                 }
 189
 190                 if (!$purge_unread) $query_limit = " unread = false AND ";
 191
 192                 if (DB_TYPE == "pgsql") {
 193 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 194                                 marked = false AND feed_id = '$feed_id' AND
 195                                 (SELECT date_updated FROM ttrss_entries WHERE
 196                                         id = ref_id) < NOW() - INTERVAL '$purge_interval days'"); */
 197
 198                         $pg_version = get_pgsql_version($link);
 199
 200                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 201
 202                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 203                                         ttrss_entries.id = ref_id AND
 204                                         marked = false AND
 205                                         feed_id = '$feed_id' AND
 206                                         $query_limit
 207                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 208
 209                         } else {
 210
 211                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
 212                                         USING ttrss_entries
 213                                         WHERE ttrss_entries.id = ref_id AND
 214                                         marked = false AND
 215                                         feed_id = '$feed_id' AND
 216                                         $query_limit
 217                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 218                         }
 219
 220                         $rows = pg_affected_rows($result);
 221
 222                 } else {
 223
 224 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 225                                 marked = false AND feed_id = '$feed_id' AND
 226                                 (SELECT date_updated FROM ttrss_entries WHERE
 227                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 228
 229                         $result = db_query($link, "DELETE FROM ttrss_user_entries
 230                                 USING ttrss_user_entries, ttrss_entries
 231                                 WHERE ttrss_entries.id = ref_id AND
 232                                 marked = false AND
 233                                 feed_id = '$feed_id' AND
 234                                 $query_limit
 235                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 236
 237                         $rows = mysql_affected_rows($link);
 238
 239                 }
 240
 241                 ccache_update($link, $feed_id, $owner_uid);
 242
 243                 if ($debug) {
 244                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 245                 }
 246         } // function purge_feed
 247
 248         /**
 249          * Purge old posts from old feeds. Not used anymore, purging is done after feed update.
 250          *
 251          * @param mixed $link A database connection
 252          * @param boolean $do_output Set to true to enable printed output, false by default.
 253          * @param integer $limit The maximal number of removed posts.
 254          * @access public
 255          * @return void
 256          */
 257         /* function global_purge_old_posts($link, $do_output = false, $limit = false) {
 258
 259                 $random_qpart = sql_random_function();
 260
 261                 if ($limit) {
 262                         $limit_qpart = "LIMIT $limit";
 263                 } else {
 264                         $limit_qpart = "";
 265                 }
 266
 267                 $result = db_query($link,
 268                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds
 269                                 ORDER BY $random_qpart $limit_qpart");
 270
 271                 while ($line = db_fetch_assoc($result)) {
 272
 273                         $feed_id = $line["id"];
 274                         $purge_interval = $line["purge_interval"];
 275                         $owner_uid = $line["owner_uid"];
 276
 277                         if ($purge_interval == 0) {
 278
 279                                 $tmp_result = db_query($link,
 280                                         "SELECT value FROM ttrss_user_prefs WHERE
 281                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
 282
 283                                 if (db_num_rows($tmp_result) != 0) {
 284                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
 285                                 }
 286                         }
 287
 288                         if ($do_output) {
 289 //                              print "Feed $feed_id: purge interval = $purge_interval\n";
 290                         }
 291
 292                         if ($purge_interval > 0 || FORCE_ARTICLE_PURGE) {
 293                                 purge_feed($link, $feed_id, $purge_interval, $do_output);
 294                         }
 295                 }
 296
 297                 purge_orphans($link, $do_output);
 298
 299         } // function global_purge_old_posts */
 300
 301         function feed_purge_interval($link, $feed_id) {
 302
 303                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
 304                         WHERE id = '$feed_id'");
 305
 306                 if (db_num_rows($result) == 1) {
 307                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 308                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 309
 310                         if ($purge_interval == 0) $purge_interval = get_pref($link,
 311                                 'PURGE_OLD_DAYS', $owner_uid);
 312
 313                         return $purge_interval;
 314
 315                 } else {
 316                         return -1;
 317                 }
 318         }
 319
 320         function purge_old_posts($link) {
 321
 322                 $user_id = $_SESSION["uid"];
 323
 324                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
 325                         WHERE owner_uid = '$user_id'");
 326
 327                 while ($line = db_fetch_assoc($result)) {
 328
 329                         $feed_id = $line["id"];
 330                         $purge_interval = $line["purge_interval"];
 331
 332                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
 333
 334                         if ($purge_interval > 0) {
 335                                 purge_feed($link, $feed_id, $purge_interval);
 336                         }
 337                 }
 338
 339                 purge_orphans($link);
 340         }
 341
 342         function purge_orphans($link, $do_output = false) {
 343
 344                 // purge orphaned posts in main content table
 345                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
 346                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 347
 348                 if ($do_output) {
 349                         $rows = db_affected_rows($link, $result);
 350                         _debug("Purged $rows orphaned posts.");
 351                 }
 352         }
 353
 354         function get_feed_update_interval($link, $feed_id) {
 355                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
 356                         ttrss_feeds WHERE id = '$feed_id'");
 357
 358                 if (db_num_rows($result) == 1) {
 359                         $update_interval = db_fetch_result($result, 0, "update_interval");
 360                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 361
 362                         if ($update_interval != 0) {
 363                                 return $update_interval;
 364                         } else {
 365                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 366                         }
 367
 368                 } else {
 369                         return -1;
 370                 }
 371         }
 372
 373         function fetch_file_contents($url, $type = false) {
 374                 if (USE_CURL_FOR_ICONS) {
 375                         $ch = curl_init($url);
 376
 377                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
 378                         curl_setopt($ch, CURLOPT_TIMEOUT, 45);
 379                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 380                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 381                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 382                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 383
 384                         $contents = @curl_exec($ch);
 385                         if ($contents === false) {
 386                                 curl_close($ch);
 387                                 return false;
 388                         }
 389
 390                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 391                         curl_close($ch);
 392
 393                         if ($type && strpos($content_type, "$type") === false) {
 394                                 return false;
 395                         }
 396
 397                         return $contents;
 398                 } else {
 399                         return @file_get_contents($url);
 400                 }
 401
 402         }
 403
 404         /**
 405          * Try to determine the favicon URL for a feed.
 406          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 407          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 408          *
 409          * @param string $url A feed or page URL
 410          * @access public
 411          * @return mixed The favicon URL, or false if none was found.
 412          */
 413         function get_favicon_url($url) {
 414
 415                 $favicon_url = false;
 416
 417                 if ($html = @fetch_file_contents($url)) {
 418
 419                         libxml_use_internal_errors(true);
 420
 421                         $doc = new DOMDocument();
 422                         $doc->loadHTML($html);
 423                         $xpath = new DOMXPath($doc);
 424                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon"]');
 425
 426                         if (count($entries) > 0) {
 427                                 foreach ($entries as $entry) {
 428                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 429                                         break;
 430                                 }
 431                         }
 432                 }
 433
 434                 if (!$favicon_url)
 435                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 436
 437                 // Run a test to see if what we have attempted to get actually exists.
 438                 if(USE_CURL_FOR_ICONS || url_validate($favicon_url)) {
 439                         return $favicon_url;
 440                 } else {
 441                         return false;
 442                 }
 443         } // function get_favicon_url
 444
 445         /**
 446          * Check if a link is a valid and working URL.
 447          *
 448          * @param mixed $link A URL to check
 449          * @access public
 450          * @return boolean True if the URL is valid, false otherwise.
 451          */
 452         function url_validate($link) {
 453
 454                 $url_parts = @parse_url($link);
 455
 456                 if ( empty( $url_parts["host"] ) )
 457                                 return false;
 458
 459                 if ( !empty( $url_parts["path"] ) ) {
 460                                 $documentpath = $url_parts["path"];
 461                 } else {
 462                                 $documentpath = "/";
 463                 }
 464
 465                 if ( !empty( $url_parts["query"] ) )
 466                                 $documentpath .= "?" . $url_parts["query"];
 467
 468                 $host = $url_parts["host"];
 469                 $port = $url_parts["port"];
 470
 471                 if ( empty($port) )
 472                                 $port = "80";
 473
 474                 $socket = @fsockopen( $host, $port, $errno, $errstr, 30 );
 475
 476                 if ( !$socket )
 477                                 return false;
 478
 479                 fwrite ($socket, "HEAD ".$documentpath." HTTP/1.0\r\nHost: $host\r\n\r\n");
 480
 481                 $http_response = fgets( $socket, 22 );
 482
 483                 $responses = "/(200 OK)|(30[123])/";
 484                 if ( preg_match($responses, $http_response) ) {
 485                                 fclose($socket);
 486                                 return true;
 487                 } else {
 488                                 return false;
 489                 }
 490
 491         } // function url_validate
 492
 493         function check_feed_favicon($site_url, $feed, $link) {
 494                 $favicon_url = get_favicon_url($site_url);
 495
 496 #               print "FAVICON [$site_url]: $favicon_url\n";
 497
 498                 $icon_file = ICONS_DIR . "/$feed.ico";
 499
 500                 if ($favicon_url && !file_exists($icon_file)) {
 501                         $contents = fetch_file_contents($favicon_url, "image");
 502
 503                         if ($contents) {
 504                                 $fp = fopen($icon_file, "w");
 505
 506                                 if ($fp) {
 507                                         fwrite($fp, $contents);
 508                                         fclose($fp);
 509                                         chmod($icon_file, 0644);
 510                                 }
 511                         }
 512                 }
 513         }
 514
 515         function update_rss_feed($link, $feed, $ignore_daemon = false) {
 516
 517                 global $memcache;
 518
 519                 /* Update all feeds with the same URL to utilize memcache */
 520
 521                 if ($memcache) {
 522                         $result = db_query($link, "SELECT f1.id
 523                                 FROM ttrss_feeds AS f1, ttrss_feeds AS f2
 524                                 WHERE   f2.feed_url = f1.feed_url AND f2.id = '$feed'");
 525
 526                         while ($line = db_fetch_assoc($result)) {
 527                                 update_rss_feed_real($link, $line["id"], $ignore_daemon);
 528                         }
 529                 } else {
 530                         update_rss_feed_real($link, $feed, $ignore_daemon);
 531                 }
 532         }
 533
 534         function update_rss_feed_real($link, $feed, $ignore_daemon = false) {
 535
 536                 global $memcache;
 537
 538                 if (!$_REQUEST["daemon"] && !$ignore_daemon) {
 539                         return false;
 540                 }
 541
 542                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 543                         _debug("update_rss_feed: start");
 544                 }
 545
 546                 if (!$ignore_daemon) {
 547
 548                         if (DB_TYPE == "pgsql") {
 549                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
 550                                 } else {
 551                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
 552                                 }
 553
 554                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 555                                 auth_pass,cache_images,update_method
 556                                 FROM ttrss_feeds WHERE id = '$feed' AND $updstart_thresh_qpart");
 557
 558                 } else {
 559
 560                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 561                                 feed_url,auth_pass,cache_images,update_method,last_updated,
 562                                 owner_uid
 563                                 FROM ttrss_feeds WHERE id = '$feed'");
 564
 565                 }
 566
 567                 if (db_num_rows($result) == 0) {
 568                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 569                                 _debug("update_rss_feed: feed $feed NOT FOUND/SKIPPED");
 570                         }
 571                         return false;
 572                 }
 573
 574                 $update_method = db_fetch_result($result, 0, "update_method");
 575                 $last_updated = db_fetch_result($result, 0, "last_updated");
 576                 $owner_uid = db_fetch_result($result, 0, "owner_uid");
 577
 578                 db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
 579                         WHERE id = '$feed'");
 580
 581                 $auth_login = db_fetch_result($result, 0, "auth_login");
 582                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
 583
 584                 if ($update_method == 0)
 585                         $update_method = DEFAULT_UPDATE_METHOD + 1;
 586
 587                 // 1 - Magpie
 588                 // 2 - SimplePie
 589                 // 3 - Twitter OAuth
 590
 591                 if ($update_method == 2)
 592                         $use_simplepie = true;
 593                 else
 594                         $use_simplepie = false;
 595
 596                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 597                         _debug("update method: $update_method (feed setting: $update_method) (use simplepie: $use_simplepie)\n");
 598                 }
 599
 600                 if ($update_method == 1) {
 601                         $auth_login = urlencode($auth_login);
 602                         $auth_pass = urlencode($auth_pass);
 603                 }
 604
 605                 $update_interval = db_fetch_result($result, 0, "update_interval");
 606                 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
 607                 $fetch_url = db_fetch_result($result, 0, "feed_url");
 608
 609                 if ($update_interval < 0) { return; }
 610
 611                 $feed = db_escape_string($feed);
 612
 613                 if ($auth_login && $auth_pass && $updated != 3) {
 614                         $url_parts = array();
 615                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 616
 617                         if ($url_parts[1] && $url_parts[2]) {
 618                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 619                         }
 620
 621                 }
 622
 623                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 624                         _debug("update_rss_feed: fetching [$fetch_url]...");
 625                 }
 626
 627                 $obj_id = md5("FDATA:$use_simplepie:$fetch_url");
 628
 629                 if ($memcache && $obj = $memcache->get($obj_id)) {
 630
 631                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 632                                 _debug("update_rss_feed: data found in memcache.");
 633                         }
 634
 635                         $rss = $obj;
 636
 637                 } else {
 638
 639                         if ($update_method == 3) {
 640                                 $rss = fetch_twitter_rss($link, $fetch_url, $owner_uid);
 641                                         } else if ($update_method == 1) {
 642                                 $rss = @fetch_rss($fetch_url);
 643                         } else {
 644                                 if (!is_dir(SIMPLEPIE_CACHE_DIR)) {
 645                                         mkdir(SIMPLEPIE_CACHE_DIR);
 646                                 }
 647
 648                                 $rss = new SimplePie();
 649                                 $rss->set_useragent(SELF_USER_AGENT);
 650         #                       $rss->set_timeout(10);
 651                                 $rss->set_feed_url($fetch_url);
 652                                 $rss->set_output_encoding('UTF-8');
 653
 654                                 if (SIMPLEPIE_CACHE_IMAGES && $cache_images) {
 655                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 656                                                 _debug("enabling image cache");
 657                                         }
 658
 659                                         $rss->set_image_handler('./image.php', 'i');
 660                                 }
 661
 662                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 663                                         _debug("feed update interval (sec): " .
 664                                                 get_feed_update_interval($link, $feed)*60);
 665                                 }
 666
 667                                 if (is_dir(SIMPLEPIE_CACHE_DIR)) {
 668                                         $rss->set_cache_location(SIMPLEPIE_CACHE_DIR);
 669                                         $rss->set_cache_duration(get_feed_update_interval($link, $feed) * 60);
 670                                 }
 671
 672                                 $rss->init();
 673                         }
 674
 675                         if ($memcache && $rss) $memcache->add($obj_id, $rss, 0, 300);
 676                 }
 677
 678 //              print_r($rss);
 679
 680                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 681                         _debug("update_rss_feed: fetch done, parsing...");
 682                 }
 683
 684                 $feed = db_escape_string($feed);
 685
 686                 if ($update_method == 2) {
 687                         $fetch_ok = !$rss->error();
 688                 } else {
 689                         $fetch_ok = !!$rss;
 690                 }
 691
 692                 if ($fetch_ok) {
 693
 694                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 695                                 _debug("update_rss_feed: processing feed data...");
 696                         }
 697
 698 //                      db_query($link, "BEGIN");
 699
 700                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 701                                 FROM ttrss_feeds WHERE id = '$feed'");
 702
 703                         $registered_title = db_fetch_result($result, 0, "title");
 704                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 705                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 706
 707                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 708
 709                         if ($use_simplepie) {
 710                                 $site_url = $rss->get_link();
 711                         } else {
 712                                 $site_url = $rss->channel["link"];
 713                         }
 714
 715                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 716                                 _debug("update_rss_feed: checking favicon...");
 717                         }
 718
 719                         check_feed_favicon($site_url, $feed, $link);
 720
 721                         if (!$registered_title || $registered_title == "[Unknown]") {
 722
 723                                 if ($use_simplepie) {
 724                                         $feed_title = db_escape_string($rss->get_title());
 725                                 } else {
 726                                         $feed_title = db_escape_string($rss->channel["title"]);
 727                                 }
 728
 729                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 730                                         _debug("update_rss_feed: registering title: $feed_title");
 731                                 }
 732
 733                                 db_query($link, "UPDATE ttrss_feeds SET
 734                                         title = '$feed_title' WHERE id = '$feed'");
 735                         }
 736
 737                         // weird, weird Magpie
 738                         if (!$use_simplepie) {
 739                                 if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 740                         }
 741
 742                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 743                                 db_query($link, "UPDATE ttrss_feeds SET
 744                                         site_url = '$site_url' WHERE id = '$feed'");
 745                         }
 746
 747 //                      print "I: " . $rss->channel["image"]["url"];
 748
 749                         if (!$use_simplepie) {
 750                                 $icon_url = db_escape_string($rss->image["url"]);
 751                         } else {
 752                                 $icon_url = db_escape_string($rss->get_image_url());
 753                         }
 754
 755                         $icon_url = substr($icon_url, 0, 250);
 756
 757                         if ($icon_url && $orig_icon_url != $icon_url) {
 758                                 if (USE_CURL_FOR_ICONS || url_validate($icon_url)) {
 759                                         db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 760                                 }
 761                         }
 762
 763                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 764                                 _debug("update_rss_feed: loading filters...");
 765                         }
 766
 767                         $filters = load_filters($link, $feed, $owner_uid);
 768
 769                         if ($use_simplepie) {
 770                                 $iterator = $rss->get_items();
 771                         } else {
 772                                 $iterator = $rss->items;
 773                                 if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
 774                                 if (!$iterator || !is_array($iterator)) $iterator = $rss;
 775                         }
 776
 777                         if (!is_array($iterator)) {
 778                                 /* db_query($link, "UPDATE ttrss_feeds
 779                                         SET last_error = 'Parse error: can\'t find any articles.'
 780                                         WHERE id = '$feed'"); */
 781
 782                                 // clear any errors and mark feed as updated if fetched okay
 783                                 // even if it's blank
 784
 785                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 786                                         _debug("update_rss_feed: entry iterator is not an array, no articles?");
 787                                 }
 788
 789                                 db_query($link, "UPDATE ttrss_feeds
 790                                         SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 791
 792                                 return; // no articles
 793                         }
 794
 795                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 796                                 _debug("update_rss_feed: processing articles...");
 797                         }
 798
 799                         foreach ($iterator as $item) {
 800
 801                                 if ($_REQUEST['xdebug'] == 2) {
 802                                         print_r($item);
 803                                 }
 804
 805                                 if ($use_simplepie) {
 806                                         $entry_guid = $item->get_id();
 807                                         if (!$entry_guid) $entry_guid = $item->get_link();
 808                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
 809
 810                                 } else {
 811
 812                                         $entry_guid = $item["id"];
 813
 814                                         if (!$entry_guid) $entry_guid = $item["guid"];
 815                                         if (!$entry_guid) $entry_guid = $item["link"];
 816                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
 817                                 }
 818
 819                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 820                                         _debug("update_rss_feed: guid $entry_guid");
 821                                 }
 822
 823                                 if (!$entry_guid) continue;
 824
 825                                 $entry_timestamp = "";
 826
 827                                 if ($use_simplepie) {
 828                                         $entry_timestamp = strtotime($item->get_date());
 829                                 } else {
 830                                         $rss_2_date = $item['pubdate'];
 831                                         $rss_1_date = $item['dc']['date'];
 832                                         $atom_date = $item['issued'];
 833                                         if (!$atom_date) $atom_date = $item['updated'];
 834
 835                                         if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 836                                         if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 837                                         if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 838
 839                                 }
 840
 841                                 if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
 842                                         $entry_timestamp = time();
 843                                         $no_orig_date = 'true';
 844                                 } else {
 845                                         $no_orig_date = 'false';
 846                                 }
 847
 848                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 849
 850                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 851                                         _debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
 852                                 }
 853
 854                                 if ($use_simplepie) {
 855                                         $entry_title = $item->get_title();
 856                                 } else {
 857                                         $entry_title = trim(strip_tags($item["title"]));
 858                                 }
 859
 860                                 if ($use_simplepie) {
 861                                         $entry_link = $item->get_link();
 862                                 } else {
 863                                         // strange Magpie workaround
 864                                         $entry_link = $item["link_"];
 865                                         if (!$entry_link) $entry_link = $item["link"];
 866                                 }
 867
 868                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 869                                         _debug("update_rss_feed: title $entry_title");
 870                                 }
 871
 872                                 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
 873
 874                                 $entry_link = strip_tags($entry_link);
 875
 876                                 if ($use_simplepie) {
 877                                         $entry_content = $item->get_content();
 878                                         if (!$entry_content) $entry_content = $item->get_description();
 879                                 } else {
 880                                         $entry_content = $item["content:escaped"];
 881
 882                                         if (!$entry_content) $entry_content = $item["content:encoded"];
 883                                         if (!$entry_content) $entry_content = $item["content"]["encoded"];
 884                                         if (!$entry_content) $entry_content = $item["content"];
 885
 886                                         // Magpie bugs are getting ridiculous
 887                                         if (trim($entry_content) == "Array") $entry_content = false;
 888
 889                                         if (!$entry_content) $entry_content = $item["atom_content"];
 890                                         if (!$entry_content) $entry_content = $item["summary"];
 891
 892                                         if (!$entry_content ||
 893                                                 strlen($entry_content) < strlen($item["description"])) {
 894                                                         $entry_content = $item["description"];
 895                                         };
 896
 897                                         // WTF
 898                                         if (is_array($entry_content)) {
 899                                                 $entry_content = $entry_content["encoded"];
 900                                                 if (!$entry_content) $entry_content = $entry_content["escaped"];
 901                                         }
 902                                 }
 903
 904                                 if ($_REQUEST["xdebug"] == 2) {
 905                                         print "update_rss_feed: content: ";
 906                                         print_r(htmlspecialchars($entry_content));
 907                                 }
 908
 909                                 $entry_content_unescaped = $entry_content;
 910
 911                                 if ($use_simplepie) {
 912                                         $entry_comments = strip_tags($item->data["comments"]);
 913                                         if ($item->get_author()) {
 914                                                 $entry_author_item = $item->get_author();
 915                                                 $entry_author = $entry_author_item->get_name();
 916                                                 if (!$entry_author) $entry_author = $entry_author_item->get_email();
 917
 918                                                 $entry_author = db_escape_string($entry_author);
 919                                         }
 920                                 } else {
 921                                         $entry_comments = strip_tags($item["comments"]);
 922
 923                                         $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
 924
 925                                         if ($item['author']) {
 926
 927                                                 if (is_array($item['author'])) {
 928
 929                                                         if (!$entry_author) {
 930                                                                 $entry_author = db_escape_string(strip_tags($item['author']['name']));
 931                                                         }
 932
 933                                                         if (!$entry_author) {
 934                                                                 $entry_author = db_escape_string(strip_tags($item['author']['email']));
 935                                                         }
 936                                                 }
 937
 938                                                 if (!$entry_author) {
 939                                                         $entry_author = db_escape_string(strip_tags($item['author']));
 940                                                 }
 941                                         }
 942                                 }
 943
 944                                 if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
 945
 946                                 $entry_guid = db_escape_string(strip_tags($entry_guid));
 947                                 $entry_guid = mb_substr($entry_guid, 0, 250);
 948
 949                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 950                                         WHERE guid = '$entry_guid'");
 951
 952                                 $entry_content = db_escape_string($entry_content);
 953
 954                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 955
 956                                 $entry_title = db_escape_string($entry_title);
 957                                 $entry_link = db_escape_string($entry_link);
 958                                 $entry_comments = mb_substr(db_escape_string($entry_comments), 0, 250);
 959                                 $entry_author = mb_substr($entry_author, 0, 250);
 960
 961                                 if ($use_simplepie) {
 962                                         $num_comments = 0; #FIXME#
 963                                 } else {
 964                                         $num_comments = db_escape_string($item["slash"]["comments"]);
 965                                 }
 966
 967                                 if (!$num_comments) $num_comments = 0;
 968
 969                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 970                                         _debug("update_rss_feed: looking for tags [1]...");
 971                                 }
 972
 973                                 // parse <category> entries into tags
 974
 975                                 $additional_tags = array();
 976
 977                                 if ($use_simplepie) {
 978
 979                                         $additional_tags_src = $item->get_categories();
 980
 981                                         if (is_array($additional_tags_src)) {
 982                                                 foreach ($additional_tags_src as $tobj) {
 983                                                         array_push($additional_tags, $tobj->get_term());
 984                                                 }
 985                                         }
 986
 987                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 988                                                 _debug("update_rss_feed: category tags:");
 989                                                 print_r($additional_tags);
 990                                         }
 991
 992                                 } else {
 993
 994                                         $t_ctr = $item['category#'];
 995
 996                                         if ($t_ctr == 0) {
 997                                                 $additional_tags = array();
 998                                         } else if ($t_ctr > 0) {
 999                                                 $additional_tags = array($item['category']);
1000
1001                                                 if ($item['category@term']) {
1002                                                         array_push($additional_tags, $item['category@term']);
1003                                                 }
1004
1005                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
1006                                                         if ($item["category#$i"]) {
1007                                                                 array_push($additional_tags, $item["category#$i"]);
1008                                                         }
1009
1010                                                         if ($item["category#$i@term"]) {
1011                                                                 array_push($additional_tags, $item["category#$i@term"]);
1012                                                         }
1013                                                 }
1014                                         }
1015
1016                                         // parse <dc:subject> elements
1017
1018                                         $t_ctr = $item['dc']['subject#'];
1019
1020                                         if ($t_ctr > 0) {
1021                                                 array_push($additional_tags, $item['dc']['subject']);
1022
1023                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
1024                                                         if ($item['dc']["subject#$i"]) {
1025                                                                 array_push($additional_tags, $item['dc']["subject#$i"]);
1026                                                         }
1027                                                 }
1028                                         }
1029                                 }
1030
1031                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1032                                         _debug("update_rss_feed: looking for tags [2]...");
1033                                 }
1034
1035                                 /* taaaags */
1036                                 // <a href="..." rel="tag">Xorg</a>, //
1037
1038                                 $entry_tags = null;
1039
1040                                 preg_match_all("/<a.*?rel=['\"]tag['\"].*?\>([^<]+)<\/a>/i",
1041                                         $entry_content_unescaped, $entry_tags);
1042
1043                                 $entry_tags = $entry_tags[1];
1044
1045                                 $entry_tags = array_merge($entry_tags, $additional_tags);
1046                                 $entry_tags = array_unique($entry_tags);
1047
1048                                 for ($i = 0; $i < count($entry_tags); $i++)
1049                                         $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
1050
1051                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1052                                         _debug("update_rss_feed: unfiltered tags found:");
1053                                         print_r($entry_tags);
1054                                 }
1055
1056                                 # sanitize content
1057
1058                                 $entry_content = sanitize_article_content($entry_content);
1059                                 $entry_title = sanitize_article_content($entry_title);
1060
1061                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1062                                         _debug("update_rss_feed: done collecting data [TITLE:$entry_title]");
1063                                 }
1064
1065                                 db_query($link, "BEGIN");
1066
1067                                 if (db_num_rows($result) == 0) {
1068
1069                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1070                                                 _debug("update_rss_feed: base guid not found");
1071                                         }
1072
1073                                         // base post entry does not exist, create it
1074
1075                                         $result = db_query($link,
1076                                                 "INSERT INTO ttrss_entries
1077                                                         (title,
1078                                                         guid,
1079                                                         link,
1080                                                         updated,
1081                                                         content,
1082                                                         content_hash,
1083                                                         no_orig_date,
1084                                                         date_updated,
1085                                                         date_entered,
1086                                                         comments,
1087                                                         num_comments,
1088                                                         author)
1089                                                 VALUES
1090                                                         ('$entry_title',
1091                                                         '$entry_guid',
1092                                                         '$entry_link',
1093                                                         '$entry_timestamp_fmt',
1094                                                         '$entry_content',
1095                                                         '$content_hash',
1096                                                         $no_orig_date,
1097                                                         NOW(),
1098                                                         NOW(),
1099                                                         '$entry_comments',
1100                                                         '$num_comments',
1101                                                         '$entry_author')");
1102                                 } else {
1103                                         // we keep encountering the entry in feeds, so we need to
1104                                         // update date_updated column so that we don't get horrible
1105                                         // dupes when the entry gets purged and reinserted again e.g.
1106                                         // in the case of SLOW SLOW OMG SLOW updating feeds
1107
1108                                         $base_entry_id = db_fetch_result($result, 0, "id");
1109
1110                                         db_query($link, "UPDATE ttrss_entries SET date_updated = NOW()
1111                                                 WHERE id = '$base_entry_id'");
1112                                 }
1113
1114                                 // now it should exist, if not - bad luck then
1115
1116                                 $result = db_query($link, "SELECT
1117                                                 id,content_hash,no_orig_date,title,
1118                                                 ".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
1119                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
1120                                                 num_comments
1121                                         FROM
1122                                                 ttrss_entries
1123                                         WHERE guid = '$entry_guid'");
1124
1125                                 $entry_ref_id = 0;
1126                                 $entry_int_id = 0;
1127
1128                                 if (db_num_rows($result) == 1) {
1129
1130                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1131                                                 _debug("update_rss_feed: base guid found, checking for user record");
1132                                         }
1133
1134                                         // this will be used below in update handler
1135                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
1136                                         $orig_title = db_fetch_result($result, 0, "title");
1137                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
1138                                         $orig_date_updated = strtotime(db_fetch_result($result,
1139                                                 0, "date_updated"));
1140
1141                                         $ref_id = db_fetch_result($result, 0, "id");
1142                                         $entry_ref_id = $ref_id;
1143
1144                                         // check for user post link to main table
1145
1146                                         // do we allow duplicate posts with same GUID in different feeds?
1147                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
1148                                                 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
1149                                         } else {
1150                                                 $dupcheck_qpart = "";
1151                                         }
1152
1153                                         /* Collect article tags here so we could filter by them: */
1154
1155                                         $article_filters = get_article_filters($filters, $entry_title,
1156                                                 $entry_content, $entry_link, $entry_timestamp, $entry_author,
1157                                                 $entry_tags);
1158
1159                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1160                                                 _debug("update_rss_feed: article filters: ");
1161                                                 if (count($article_filters) != 0) {
1162                                                         print_r($article_filters);
1163                                                 }
1164                                         }
1165
1166                                         if (find_article_filter($article_filters, "filter")) {
1167                                                 db_query($link, "COMMIT"); // close transaction in progress
1168                                                 continue;
1169                                         }
1170
1171                                         $score = calculate_article_score($article_filters);
1172
1173                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1174                                                 _debug("update_rss_feed: initial score: $score");
1175                                         }
1176
1177                                         $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
1178                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
1179                                                         $dupcheck_qpart";
1180
1181 //                                      if ($_REQUEST["xdebug"]) print "$query\n";
1182
1183                                         $result = db_query($link, $query);
1184
1185                                         // okay it doesn't exist - create user entry
1186                                         if (db_num_rows($result) == 0) {
1187
1188                                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1189                                                         _debug("update_rss_feed: user record not found, creating...");
1190                                                 }
1191
1192                                                 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
1193                                                         $unread = 'true';
1194                                                         $last_read_qpart = 'NULL';
1195                                                 } else {
1196                                                         $unread = 'false';
1197                                                         $last_read_qpart = 'NOW()';
1198                                                 }
1199
1200                                                 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
1201                                                         $marked = 'true';
1202                                                 } else {
1203                                                         $marked = 'false';
1204                                                 }
1205
1206                                                 if (find_article_filter($article_filters, 'publish')) {
1207                                                         $published = 'true';
1208                                                 } else {
1209                                                         $published = 'false';
1210                                                 }
1211
1212                                                 $result = db_query($link,
1213                                                         "INSERT INTO ttrss_user_entries
1214                                                                 (ref_id, owner_uid, feed_id, unread, last_read, marked,
1215                                                                         published, score, tag_cache, label_cache)
1216                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
1217                                                                 $last_read_qpart, $marked, $published, '$score', '', '')");
1218
1219                                                 $result = db_query($link,
1220                                                         "SELECT int_id FROM ttrss_user_entries WHERE
1221                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
1222                                                                 feed_id = '$feed' LIMIT 1");
1223
1224                                                 if (db_num_rows($result) == 1) {
1225                                                         $entry_int_id = db_fetch_result($result, 0, "int_id");
1226                                                 }
1227                                         } else {
1228                                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1229                                                         _debug("update_rss_feed: user record FOUND");
1230                                                 }
1231
1232                                                 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
1233                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
1234                                         }
1235
1236                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1237                                                 _debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
1238                                         }
1239
1240                                         $post_needs_update = false;
1241
1242                                         if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE", $owner_uid, false) &&
1243                                                 ($content_hash != $orig_content_hash)) {
1244 //                                              print "<!-- [$entry_title] $content_hash vs $orig_content_hash -->";
1245                                                 $post_needs_update = true;
1246                                         }
1247
1248                                         if (db_escape_string($orig_title) != $entry_title) {
1249                                                 $post_needs_update = true;
1250                                         }
1251
1252                                         if ($orig_num_comments != $num_comments) {
1253                                                 $post_needs_update = true;
1254                                         }
1255
1256 //                                      this doesn't seem to be very reliable
1257 //
1258 //                                      if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
1259 //                                              $post_needs_update = true;
1260 //                                      }
1261
1262                                         // if post needs update, update it and mark all user entries
1263                                         // linking to this post as updated
1264                                         if ($post_needs_update) {
1265
1266                                                 if (defined('DAEMON_EXTENDED_DEBUG')) {
1267                                                         _debug("update_rss_feed: post $entry_guid needs update...");
1268                                                 }
1269
1270 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
1271
1272                                                 db_query($link, "UPDATE ttrss_entries
1273                                                         SET title = '$entry_title', content = '$entry_content',
1274                                                                 content_hash = '$content_hash',
1275                                                                 num_comments = '$num_comments'
1276                                                         WHERE id = '$ref_id'");
1277
1278                                                 if (get_pref($link, "MARK_UNREAD_ON_UPDATE", $owner_uid, false)) {
1279                                                         db_query($link, "UPDATE ttrss_user_entries
1280                                                                 SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
1281                                                 } else {
1282                                                         db_query($link, "UPDATE ttrss_user_entries
1283                                                                 SET last_read = null WHERE ref_id = '$ref_id' AND unread = false");
1284                                                 }
1285
1286                                         }
1287                                 }
1288
1289                                 db_query($link, "COMMIT");
1290
1291                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1292                                         _debug("update_rss_feed: assigning labels...");
1293                                 }
1294
1295                                 assign_article_to_labels($link, $entry_ref_id, $article_filters,
1296                                         $owner_uid);
1297
1298                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1299                                         _debug("update_rss_feed: looking for enclosures...");
1300                                 }
1301
1302                                 // enclosures
1303
1304                                 $enclosures = array();
1305
1306                                 if ($use_simplepie) {
1307                                         $encs = $item->get_enclosures();
1308
1309                                         if (is_array($encs)) {
1310                                                 foreach ($encs as $e) {
1311                                                         $e_item = array(
1312                                                                 $e->link, $e->type, $e->length);
1313
1314                                                         array_push($enclosures, $e_item);
1315                                                 }
1316                                         }
1317
1318                                 } else {
1319                                         // <enclosure>
1320
1321                                         $e_ctr = $item['enclosure#'];
1322
1323                                         if ($e_ctr > 0) {
1324                                                 $e_item = array($item['enclosure@url'],
1325                                                         $item['enclosure@type'],
1326                                                         $item['enclosure@length']);
1327
1328                                                 array_push($enclosures, $e_item);
1329
1330                                                 for ($i = 0; $i <= $e_ctr; $i++ ) {
1331
1332                                                         if ($item["enclosure#$i@url"]) {
1333                                                                 $e_item = array($item["enclosure#$i@url"],
1334                                                                         $item["enclosure#$i@type"],
1335                                                                         $item["enclosure#$i@length"]);
1336                                                                 array_push($enclosures, $e_item);
1337                                                         }
1338                                                 }
1339                                         }
1340
1341                                         // <media:content>
1342                                         // can there be many of those? yes -fox
1343
1344                                         $m_ctr = $item['media']['content#'];
1345
1346                                         if ($m_ctr > 0) {
1347                                                 $e_item = array($item['media']['content@url'],
1348                                                         $item['media']['content@medium'],
1349                                                         $item['media']['content@length']);
1350
1351                                                 array_push($enclosures, $e_item);
1352
1353                                                 for ($i = 0; $i <= $m_ctr; $i++ ) {
1354
1355                                                         if ($item["media"]["content#$i@url"]) {
1356                                                                 $e_item = array($item["media"]["content#$i@url"],
1357                                                                         $item["media"]["content#$i@medium"],
1358                                                                         $item["media"]["content#$i@length"]);
1359                                                                 array_push($enclosures, $e_item);
1360                                                         }
1361                                                 }
1362
1363                                         }
1364                                 }
1365
1366
1367                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1368                                         _debug("update_rss_feed: article enclosures:");
1369                                         print_r($enclosures);
1370                                 }
1371
1372                                 db_query($link, "BEGIN");
1373
1374                                 foreach ($enclosures as $enc) {
1375                                         $enc_url = db_escape_string($enc[0]);
1376                                         $enc_type = db_escape_string($enc[1]);
1377                                         $enc_dur = db_escape_string($enc[2]);
1378
1379                                         $result = db_query($link, "SELECT id FROM ttrss_enclosures
1380                                                 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1381
1382                                         if (db_num_rows($result) == 0) {
1383                                                 db_query($link, "INSERT INTO ttrss_enclosures
1384                                                         (content_url, content_type, title, duration, post_id) VALUES
1385                                                         ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
1386                                         }
1387                                 }
1388
1389                                 db_query($link, "COMMIT");
1390
1391                                 // check for manual tags (we have to do it here since they're loaded from filters)
1392
1393                                 foreach ($article_filters as $f) {
1394                                         if ($f[0] == "tag") {
1395
1396                                                 $manual_tags = trim_array(split(",", $f[1]));
1397
1398                                                 foreach ($manual_tags as $tag) {
1399                                                         if (tag_is_valid($tag)) {
1400                                                                 array_push($entry_tags, $tag);
1401                                                         }
1402                                                 }
1403                                         }
1404                                 }
1405
1406                                 // Skip boring tags
1407
1408                                 $boring_tags = trim_array(split(",", mb_strtolower(get_pref($link,
1409                                         'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1410
1411                                 $filtered_tags = array();
1412                                 $tags_to_cache = array();
1413
1414                                 if ($entry_tags && is_array($entry_tags)) {
1415                                         foreach ($entry_tags as $tag) {
1416                                                 if (array_search($tag, $boring_tags) === false) {
1417                                                         array_push($filtered_tags, $tag);
1418                                                 }
1419                                         }
1420                                 }
1421
1422                                 $filtered_tags = array_unique($filtered_tags);
1423
1424                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1425                                         _debug("update_rss_feed: filtered article tags:");
1426                                         print_r($filtered_tags);
1427                                 }
1428
1429                                 // Save article tags in the database
1430
1431                                 if (count($filtered_tags) > 0) {
1432
1433                                         db_query($link, "BEGIN");
1434
1435                                         foreach ($filtered_tags as $tag) {
1436
1437                                                 $tag = sanitize_tag($tag);
1438                                                 $tag = db_escape_string($tag);
1439
1440                                                 if (!tag_is_valid($tag)) continue;
1441
1442                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
1443                                                         WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1444                                                         owner_uid = '$owner_uid' LIMIT 1");
1445
1446                                                         if ($result && db_num_rows($result) == 0) {
1447
1448                                                                 db_query($link, "INSERT INTO ttrss_tags
1449                                                                         (owner_uid,tag_name,post_int_id)
1450                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
1451                                                         }
1452
1453                                                 array_push($tags_to_cache, $tag);
1454                                         }
1455
1456                                         /* update the cache */
1457
1458                                         $tags_to_cache = array_unique($tags_to_cache);
1459
1460                                         $tags_str = db_escape_string(join(",", $tags_to_cache));
1461
1462                                         db_query($link, "UPDATE ttrss_user_entries
1463                                                 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1464                                                 AND owner_uid = $owner_uid");
1465
1466                                         db_query($link, "COMMIT");
1467                                 }
1468
1469                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1470                                         _debug("update_rss_feed: article processed");
1471                                 }
1472                         }
1473
1474                         if (!$last_updated) {
1475                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1476                                         _debug("update_rss_feed: new feed, catching it up...");
1477                                 }
1478                                 catchup_feed($link, $feed, false, $owner_uid);
1479                         }
1480
1481                         purge_feed($link, $feed, 0);
1482
1483                         db_query($link, "UPDATE ttrss_feeds
1484                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1485
1486 //                      db_query($link, "COMMIT");
1487
1488                 } else {
1489
1490                         if ($use_simplepie) {
1491                                 $error_msg = mb_substr($rss->error(), 0, 250);
1492                         } else {
1493                                 $error_msg = mb_substr(magpie_error(), 0, 250);
1494                         }
1495
1496                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1497                                 _debug("update_rss_feed: error fetching feed: $error_msg");
1498                         }
1499
1500                         $error_msg = db_escape_string($error_msg);
1501
1502                         db_query($link,
1503                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1504                                         last_updated = NOW() WHERE id = '$feed'");
1505                 }
1506
1507                 if ($use_simplepie) {
1508                         unset($rss);
1509                 }
1510
1511                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1512                         _debug("update_rss_feed: done");
1513                 }
1514
1515         }
1516
1517         function print_select($id, $default, $values, $attributes = "") {
1518                 print "<select name=\"$id\" id=\"$id\" $attributes>";
1519                 foreach ($values as $v) {
1520                         if ($v == $default)
1521                                 $sel = "selected=\"1\"";
1522                          else
1523                                 $sel = "";
1524
1525                         print "<option value=\"$v\" $sel>$v</option>";
1526                 }
1527                 print "</select>";
1528         }
1529
1530         function print_select_hash($id, $default, $values, $attributes = "") {
1531                 print "<select name=\"$id\" id='$id' $attributes>";
1532                 foreach (array_keys($values) as $v) {
1533                         if ($v == $default)
1534                                 $sel = 'selected="selected"';
1535                          else
1536                                 $sel = "";
1537
1538                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
1539                 }
1540
1541                 print "</select>";
1542         }
1543
1544         function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1545                 $matches = array();
1546
1547                 if ($filters["title"]) {
1548                         foreach ($filters["title"] as $filter) {
1549                                 $reg_exp = $filter["reg_exp"];
1550                                 $inverse = $filter["inverse"];
1551                                 if ((!$inverse && @preg_match("/$reg_exp/i", $title)) ||
1552                                                 ($inverse && !@preg_match("/$reg_exp/i", $title))) {
1553
1554                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1555                                 }
1556                         }
1557                 }
1558
1559                 if ($filters["content"]) {
1560                         foreach ($filters["content"] as $filter) {
1561                                 $reg_exp = $filter["reg_exp"];
1562                                 $inverse = $filter["inverse"];
1563
1564                                 if ((!$inverse && @preg_match("/$reg_exp/i", $content)) ||
1565                                                 ($inverse && !@preg_match("/$reg_exp/i", $content))) {
1566
1567                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1568                                 }
1569                         }
1570                 }
1571
1572                 if ($filters["both"]) {
1573                         foreach ($filters["both"] as $filter) {
1574                                 $reg_exp = $filter["reg_exp"];
1575                                 $inverse = $filter["inverse"];
1576
1577                                 if ($inverse) {
1578                                         if (!@preg_match("/$reg_exp/i", $title) && !preg_match("/$reg_exp/i", $content)) {
1579                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1580                                         }
1581                                 } else {
1582                                         if (@preg_match("/$reg_exp/i", $title) || preg_match("/$reg_exp/i", $content)) {
1583                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1584                                         }
1585                                 }
1586                         }
1587                 }
1588
1589                 if ($filters["link"]) {
1590                         $reg_exp = $filter["reg_exp"];
1591                         foreach ($filters["link"] as $filter) {
1592                                 $reg_exp = $filter["reg_exp"];
1593                                 $inverse = $filter["inverse"];
1594
1595                                 if ((!$inverse && @preg_match("/$reg_exp/i", $link)) ||
1596                                                 ($inverse && !@preg_match("/$reg_exp/i", $link))) {
1597
1598                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1599                                 }
1600                         }
1601                 }
1602
1603                 if ($filters["date"]) {
1604                         $reg_exp = $filter["reg_exp"];
1605                         foreach ($filters["date"] as $filter) {
1606                                 $date_modifier = $filter["filter_param"];
1607                                 $inverse = $filter["inverse"];
1608                                 $check_timestamp = strtotime($filter["reg_exp"]);
1609
1610                                 # no-op when timestamp doesn't parse to prevent misfires
1611
1612                                 if ($check_timestamp) {
1613                                         $match_ok = false;
1614
1615                                         if ($date_modifier == "before" && $timestamp < $check_timestamp ||
1616                                                 $date_modifier == "after" && $timestamp > $check_timestamp) {
1617                                                         $match_ok = true;
1618                                         }
1619
1620                                         if ($inverse) $match_ok = !$match_ok;
1621
1622                                         if ($match_ok) {
1623                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1624                                         }
1625                                 }
1626                         }
1627                 }
1628
1629                 if ($filters["author"]) {
1630                         foreach ($filters["author"] as $filter) {
1631                                 $reg_exp = $filter["reg_exp"];
1632                                 $inverse = $filter["inverse"];
1633                                 if ((!$inverse && @preg_match("/$reg_exp/i", $author)) ||
1634                                                 ($inverse && !@preg_match("/$reg_exp/i", $author))) {
1635
1636                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1637                                 }
1638                         }
1639                 }
1640
1641                 if ($filters["tag"]) {
1642
1643                         $tag_string = join(",", $tags);
1644
1645                         foreach ($filters["tag"] as $filter) {
1646                                 $reg_exp = $filter["reg_exp"];
1647                                 $inverse = $filter["inverse"];
1648
1649                                 if ((!$inverse && @preg_match("/$reg_exp/i", $tag_string)) ||
1650                                                 ($inverse && !@preg_match("/$reg_exp/i", $tag_string))) {
1651
1652                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1653                                 }
1654                         }
1655                 }
1656
1657
1658                 return $matches;
1659         }
1660
1661         function find_article_filter($filters, $filter_name) {
1662                 foreach ($filters as $f) {
1663                         if ($f[0] == $filter_name) {
1664                                 return $f;
1665                         };
1666                 }
1667                 return false;
1668         }
1669
1670         function calculate_article_score($filters) {
1671                 $score = 0;
1672
1673                 foreach ($filters as $f) {
1674                         if ($f[0] == "score") {
1675                                 $score += $f[1];
1676                         };
1677                 }
1678                 return $score;
1679         }
1680
1681         function assign_article_to_labels($link, $id, $filters, $owner_uid) {
1682                 foreach ($filters as $f) {
1683                         if ($f[0] == "label") {
1684                                 label_add_article($link, $id, $f[1], $owner_uid);
1685                         };
1686                 }
1687         }
1688
1689         function getmicrotime() {
1690                 list($usec, $sec) = explode(" ",microtime());
1691                 return ((float)$usec + (float)$sec);
1692         }
1693
1694         function print_radio($id, $default, $true_is, $values, $attributes = "") {
1695                 foreach ($values as $v) {
1696
1697                         if ($v == $default)
1698                                 $sel = "checked";
1699                          else
1700                                 $sel = "";
1701
1702                         if ($v == $true_is) {
1703                                 $sel .= " value=\"1\"";
1704                         } else {
1705                                 $sel .= " value=\"0\"";
1706                         }
1707
1708                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
1709                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
1710
1711                 }
1712         }
1713
1714         function initialize_user_prefs($link, $uid, $profile = false) {
1715
1716                 $uid = db_escape_string($uid);
1717
1718                 if (!$profile) {
1719                         $profile = "NULL";
1720                         $profile_qpart = "AND profile IS NULL";
1721                 } else {
1722                         $profile_qpart = "AND profile = '$profile'";
1723                 }
1724
1725                 if (get_schema_version($link) < 63) $profile_qpart = "";
1726
1727                 db_query($link, "BEGIN");
1728
1729                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
1730
1731                 $u_result = db_query($link, "SELECT pref_name
1732                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
1733
1734                 $active_prefs = array();
1735
1736                 while ($line = db_fetch_assoc($u_result)) {
1737                         array_push($active_prefs, $line["pref_name"]);
1738                 }
1739
1740                 while ($line = db_fetch_assoc($result)) {
1741                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
1742 //                              print "adding " . $line["pref_name"] . "<br>";
1743
1744                                 if (get_schema_version($link) < 63) {
1745                                         db_query($link, "INSERT INTO ttrss_user_prefs
1746                                                 (owner_uid,pref_name,value) VALUES
1747                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
1748
1749                                 } else {
1750                                         db_query($link, "INSERT INTO ttrss_user_prefs
1751                                                 (owner_uid,pref_name,value, profile) VALUES
1752                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
1753                                 }
1754
1755                         }
1756                 }
1757
1758                 db_query($link, "COMMIT");
1759
1760         }
1761
1762         function lookup_user_id($link, $user) {
1763
1764                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE
1765                         login = '$login'");
1766
1767                 if (db_num_rows($result) == 1) {
1768                         return db_fetch_result($result, 0, "id");
1769                 } else {
1770                         return false;
1771                 }
1772         }
1773
1774         function http_authenticate_user($link) {
1775
1776 //              error_log("http_authenticate_user: ".$_SERVER["PHP_AUTH_USER"]."\n", 3, '/tmp/tt-rss.log');
1777
1778                 if (!$_SERVER["PHP_AUTH_USER"]) {
1779
1780                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1781                         header('HTTP/1.0 401 Unauthorized');
1782                         exit;
1783
1784                 } else {
1785                         $auth_result = authenticate_user($link,
1786                                 $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
1787
1788                         if (!$auth_result) {
1789                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1790                                 header('HTTP/1.0 401 Unauthorized');
1791                                 exit;
1792                         }
1793                 }
1794
1795                 return true;
1796         }
1797
1798         function authenticate_user($link, $login, $password, $force_auth = false) {
1799
1800                 if (!SINGLE_USER_MODE) {
1801
1802                         $pwd_hash1 = encrypt_password($password);
1803                         $pwd_hash2 = encrypt_password($password, $login);
1804                         $login = db_escape_string($login);
1805
1806                         if (defined('ALLOW_REMOTE_USER_AUTH') && ALLOW_REMOTE_USER_AUTH
1807                                         && $_SERVER["REMOTE_USER"] && $login != "admin") {
1808
1809                                 $login = db_escape_string($_SERVER["REMOTE_USER"]);
1810
1811                                 $query = "SELECT id,login,access_level,pwd_hash
1812                     FROM ttrss_users WHERE
1813                                         login = '$login'";
1814
1815                         } else {
1816                                 $query = "SELECT id,login,access_level,pwd_hash
1817                     FROM ttrss_users WHERE
1818                                         login = '$login' AND (pwd_hash = '$pwd_hash1' OR
1819                                                 pwd_hash = '$pwd_hash2')";
1820                         }
1821
1822                         $result = db_query($link, $query);
1823
1824                         if (db_num_rows($result) == 1) {
1825                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
1826                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
1827                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
1828
1829                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
1830                                         $_SESSION["uid"]);
1831
1832                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1833                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
1834
1835                                 $_SESSION["last_version_check"] = time();
1836
1837                                 initialize_user_prefs($link, $_SESSION["uid"]);
1838
1839                                 return true;
1840                         }
1841
1842                         return false;
1843
1844                 } else {
1845
1846                         $_SESSION["uid"] = 1;
1847                         $_SESSION["name"] = "admin";
1848
1849                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1850
1851                         initialize_user_prefs($link, $_SESSION["uid"]);
1852
1853                         return true;
1854                 }
1855         }
1856
1857         function make_password($length = 8) {
1858
1859                 $password = "";
1860                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
1861
1862         $i = 0;
1863
1864                 while ($i < $length) {
1865                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
1866
1867                         if (!strstr($password, $char)) {
1868                                 $password .= $char;
1869                                 $i++;
1870                         }
1871                 }
1872                 return $password;
1873         }
1874
1875         // this is called after user is created to initialize default feeds, labels
1876         // or whatever else
1877
1878         // user preferences are checked on every login, not here
1879
1880         function initialize_user($link, $uid) {
1881
1882                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1883                         values ('$uid', 'Tiny Tiny RSS: New Releases',
1884                         'http://tt-rss.org/releases.rss')");
1885
1886                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1887                         values ('$uid', 'Tiny Tiny RSS: Forum',
1888                                 'http://tt-rss.org/forum/rss.php')");
1889         }
1890
1891         function logout_user() {
1892                 session_destroy();
1893                 if (isset($_COOKIE[session_name()])) {
1894                    setcookie(session_name(), '', time()-42000, '/');
1895                 }
1896         }
1897
1898         function get_script_urlpath() {
1899                 return preg_replace('/\/[^\/]*$/', "", $_SERVER["REQUEST_URI"]);
1900         }
1901
1902         function validate_session($link) {
1903                 if (SINGLE_USER_MODE) return true;
1904
1905                 $check_ip = $_SESSION['ip_address'];
1906
1907                 switch (SESSION_CHECK_ADDRESS) {
1908                 case 0:
1909                         $check_ip = '';
1910                         break;
1911                 case 1:
1912                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
1913                         break;
1914                 case 2:
1915                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
1916                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
1917                         break;
1918                 };
1919
1920                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0)
1921                                 $_SESSION["login_error_msg"] =
1922                                         __("Session failed to validate (incorrect IP)");
1923
1924                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
1925                         return false;
1926
1927                 if ($_SESSION["uid"]) {
1928
1929                         $result = db_query($link,
1930                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
1931
1932                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
1933
1934                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
1935                                 return false;
1936                         }
1937                 }
1938
1939 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
1940
1941                         //print_r($_SESSION);
1942
1943                         if (time() > $_SESSION["cookie_lifetime"]) {
1944                                 return false;
1945                         }
1946                 } */
1947
1948                 return true;
1949         }
1950
1951         function login_sequence($link, $mobile = false) {
1952                 if (!SINGLE_USER_MODE) {
1953
1954                         $login_action = $_POST["login_action"];
1955
1956                         # try to authenticate user if called from login form
1957                         if ($login_action == "do_login") {
1958                                 $login = $_POST["login"];
1959                                 $password = $_POST["password"];
1960                                 $remember_me = $_POST["remember_me"];
1961
1962                                 if (authenticate_user($link, $login, $password)) {
1963                                         $_POST["password"] = "";
1964
1965                                         $_SESSION["language"] = $_POST["language"];
1966                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
1967                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
1968
1969                                         if ($_POST["profile"]) {
1970
1971                                                 $profile = db_escape_string($_POST["profile"]);
1972
1973                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
1974                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
1975
1976                                                 if (db_num_rows($result) != 0) {
1977                                                         $_SESSION["profile"] = $profile;
1978                                                         $_SESSION["prefs_cache"] = array();
1979                                                 }
1980                                         }
1981
1982                                         header("Location: " . $_SERVER["REQUEST_URI"]);
1983                                         exit;
1984
1985                                         return;
1986                                 } else {
1987                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
1988                                 }
1989                         }
1990
1991                         if (!$_SESSION["uid"] || !validate_session($link)) {
1992                                 render_login_form($link, $mobile);
1993                                 //header("Location: login.php");
1994                                 exit;
1995                         } else {
1996                                 /* bump login timestamp */
1997                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
1998                                         $_SESSION["uid"]);
1999
2000                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
2001                                         setcookie("ttrss_lang", $_SESSION["language"],
2002                                                 time() + SESSION_COOKIE_LIFETIME);
2003                                 }
2004                         }
2005
2006                 } else {
2007                         return authenticate_user($link, "admin", null);
2008                 }
2009         }
2010
2011         function truncate_string($str, $max_len, $suffix = '&hellip;') {
2012                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
2013                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
2014                 } else {
2015                         return $str;
2016                 }
2017         }
2018
2019         function theme_image($link, $filename) {
2020                 if ($link) {
2021                         $theme_path = get_user_theme_path($link);
2022
2023                         if ($theme_path && is_file($theme_path.$filename)) {
2024                                 return $theme_path.$filename;
2025                         } else {
2026                                 return $filename;
2027                         }
2028                 } else {
2029                         return $filename;
2030                 }
2031         }
2032
2033         function get_user_theme($link) {
2034
2035                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2036                         $theme_name = get_pref($link, "_THEME_ID");
2037                         if (is_dir("themes/$theme_name")) {
2038                                 return $theme_name;
2039                         } else {
2040                                 return '';
2041                         }
2042                 } else {
2043                         return '';
2044                 }
2045
2046         }
2047
2048         function get_user_theme_path($link) {
2049                 $theme_path = '';
2050
2051                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2052                         $theme_name = get_pref($link, "_THEME_ID");
2053
2054                         if ($theme_name && is_dir("themes/$theme_name")) {
2055                                 $theme_path = "themes/$theme_name/";
2056                         } else {
2057                                 $theme_name = '';
2058                         }
2059                 } else {
2060                         $theme_path = '';
2061                 }
2062
2063                 if ($theme_path) {
2064                         if (is_file("$theme_path/theme.ini")) {
2065                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
2066                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
2067                                         return $theme_path;
2068                                 }
2069                         }
2070                 }
2071                 return '';
2072         }
2073
2074         function get_user_theme_options($link) {
2075                 $t = get_user_theme_path($link);
2076
2077                 if ($t) {
2078                         if (is_file("$t/theme.ini")) {
2079                                 $ini = parse_ini_file("$t/theme.ini", true);
2080                                 if ($ini['theme']['version']) {
2081                                         return $ini['theme']['options'];
2082                                 }
2083                         }
2084                 }
2085                 return '';
2086         }
2087
2088         function print_theme_includes($link) {
2089
2090                 $t = get_user_theme_path($link);
2091                 $time = time();
2092
2093                 if ($t) {
2094                         print "<link rel=\"stylesheet\" type=\"text/css\"
2095                                 href=\"$t/theme.css?$time \">";
2096                         if (file_exists("$t/theme.js")) {
2097                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
2098                                         </script>";
2099                         }
2100                 }
2101         }
2102
2103         function get_all_themes() {
2104                 $themes = glob("themes/*");
2105
2106                 asort($themes);
2107
2108                 $rv = array();
2109
2110                 foreach ($themes as $t) {
2111                         if (is_file("$t/theme.ini")) {
2112                                 $ini = parse_ini_file("$t/theme.ini", true);
2113                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
2114                                                         !$ini['theme']['disabled']) {
2115                                         $entry = array();
2116                                         $entry["path"] = $t;
2117                                         $entry["base"] = basename($t);
2118                                         $entry["name"] = $ini['theme']['name'];
2119                                         $entry["version"] = $ini['theme']['version'];
2120                                         $entry["author"] = $ini['theme']['author'];
2121                                         $entry["options"] = $ini['theme']['options'];
2122                                         array_push($rv, $entry);
2123                                 }
2124                         }
2125                 }
2126
2127                 return $rv;
2128         }
2129
2130         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
2131                                         $no_smart_dt = false) {
2132
2133                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2134                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
2135
2136                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
2137
2138                 try {
2139                         $user_tz = new DateTimeZone($user_tz_string);
2140                 } catch (Exception $e) {
2141                         $user_tz = new DateTimeZone('UTC');
2142                 }
2143
2144                 # We store date in UTC internally
2145                 $dt = new DateTime($timestamp, new DateTimeZone('UTC'));
2146                 $user_timestamp = $dt->format('U') + $user_tz->getOffset($dt);
2147
2148                 if (!$no_smart_dt && get_pref($link, 'HEADLINES_SMART_DATE', $owner_uid)) {
2149                         return smart_date_time($link, $user_timestamp,
2150                                 $user_tz->getOffset($dt), $owner_uid);
2151                 } else {
2152                         if ($long)
2153                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2154                         else
2155                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2156
2157                         return date($format, $user_timestamp);
2158                 }
2159         }
2160
2161         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
2162                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2163
2164                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
2165                         return date("G:i", $timestamp);
2166                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
2167                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2168                         return date($format, $timestamp);
2169                 } else {
2170                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2171                         return date($format, $timestamp);
2172                 }
2173         }
2174
2175         function smart_date($timestamp) {
2176                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
2177                         return "Today";
2178                 } else if (date("Y", $timestamp) == date("Y")) {
2179                         return date("D m", $timestamp);
2180                 } else {
2181                         return date("Y/m/d", $timestamp);
2182                 }
2183         }
2184
2185         function sql_bool_to_string($s) {
2186                 if ($s == "t" || $s == "1") {
2187                         return "true";
2188                 } else {
2189                         return "false";
2190                 }
2191         }
2192
2193         function sql_bool_to_bool($s) {
2194                 if ($s == "t" || $s == "1") {
2195                         return true;
2196                 } else {
2197                         return false;
2198                 }
2199         }
2200
2201         function bool_to_sql_bool($s) {
2202                 if ($s) {
2203                         return "true";
2204                 } else {
2205                         return "false";
2206                 }
2207         }
2208
2209         function toggleEvenOdd($a) {
2210                 if ($a == "even")
2211                         return "odd";
2212                 else
2213                         return "even";
2214         }
2215
2216         function get_schema_version($link, $nocache = false) {
2217                 if (!$_SESSION["schema_version"] || $nocache) {
2218                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
2219                         $version = db_fetch_result($result, 0, "schema_version");
2220                         $_SESSION["schema_version"] = $version;
2221                         return $version;
2222                 } else {
2223                         return $_SESSION["schema_version"];
2224                 }
2225         }
2226
2227         function sanity_check($link) {
2228
2229                 $error_code = 0;
2230                 $schema_version = get_schema_version($link);
2231
2232                 if ($schema_version != SCHEMA_VERSION) {
2233                         $error_code = 5;
2234                 }
2235
2236                 if (DB_TYPE == "mysql") {
2237                         $result = db_query($link, "SELECT true", false);
2238                         if (db_num_rows($result) != 1) {
2239                                 $error_code = 10;
2240                         }
2241                 }
2242
2243                 if (db_escape_string("testTEST") != "testTEST") {
2244                         $error_code = 12;
2245                 }
2246
2247                 if ($error_code != 0) {
2248                         print_error_xml($error_code);
2249                         return false;
2250                 } else {
2251                         return true;
2252                 }
2253         }
2254
2255         function file_is_locked($filename) {
2256                 if (function_exists('flock')) {
2257                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
2258                         if ($fp) {
2259                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2260                                         flock($fp, LOCK_UN);
2261                                         fclose($fp);
2262                                         return false;
2263                                 }
2264                                 fclose($fp);
2265                                 return true;
2266                         } else {
2267                                 return false;
2268                         }
2269                 }
2270                 return true; // consider the file always locked and skip the test
2271         }
2272
2273         function make_lockfile($filename) {
2274                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2275
2276                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2277                         if (function_exists('posix_getpid')) {
2278                                 fwrite($fp, posix_getpid() . "\n");
2279                         }
2280                         return $fp;
2281                 } else {
2282                         return false;
2283                 }
2284         }
2285
2286         function make_stampfile($filename) {
2287                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2288
2289                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2290                         fwrite($fp, time() . "\n");
2291                         flock($fp, LOCK_UN);
2292                         fclose($fp);
2293                         return true;
2294                 } else {
2295                         return false;
2296                 }
2297         }
2298
2299         function sql_random_function() {
2300                 if (DB_TYPE == "mysql") {
2301                         return "RAND()";
2302                 } else {
2303                         return "RANDOM()";
2304                 }
2305         }
2306
2307         function catchup_feed($link, $feed, $cat_view, $owner_uid = false) {
2308
2309                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2310
2311                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2312
2313                                 if ($cat_view) {
2314
2315                                         if ($feed >= 0) {
2316
2317                                                 if ($feed > 0) {
2318                                                         $cat_qpart = "cat_id = '$feed'";
2319                                                 } else {
2320                                                         $cat_qpart = "cat_id IS NULL";
2321                                                 }
2322
2323                                                 $tmp_result = db_query($link, "SELECT id
2324                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = $owner_uid");
2325
2326                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
2327
2328                                                         $tmp_feed = $tmp_line["id"];
2329
2330                                                         db_query($link, "UPDATE ttrss_user_entries
2331                                                                 SET unread = false,last_read = NOW()
2332                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = $owner_uid");
2333                                                 }
2334                                         } else if ($feed == -2) {
2335
2336
2337                                                 db_query($link, "UPDATE ttrss_user_entries
2338                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
2339                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
2340                                                         AND unread = true AND owner_uid = $owner_uid");
2341                                         }
2342
2343                                 } else if ($feed > 0) {
2344
2345                                         db_query($link, "UPDATE ttrss_user_entries
2346                                                         SET unread = false,last_read = NOW()
2347                                                         WHERE feed_id = '$feed' AND owner_uid = $owner_uid");
2348
2349                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
2350
2351                                         if ($feed == -1) {
2352                                                 db_query($link, "UPDATE ttrss_user_entries
2353                                                         SET unread = false,last_read = NOW()
2354                                                         WHERE marked = true AND owner_uid = $owner_uid");
2355                                         }
2356
2357                                         if ($feed == -2) {
2358                                                 db_query($link, "UPDATE ttrss_user_entries
2359                                                         SET unread = false,last_read = NOW()
2360                                                         WHERE published = true AND owner_uid = $owner_uid");
2361                                         }
2362
2363                                         if ($feed == -3) {
2364
2365                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
2366
2367                                                 if (DB_TYPE == "pgsql") {
2368                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
2369                                                 } else {
2370                                                         $match_part = "updated > DATE_SUB(NOW(),
2371                                                                 INTERVAL $intl HOUR) ";
2372                                                 }
2373
2374                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
2375                                                         ttrss_user_entries WHERE $match_part AND
2376                                                         unread = true AND
2377                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2378                                                         owner_uid = $owner_uid");
2379
2380                                                 $affected_ids = array();
2381
2382                                                 while ($line = db_fetch_assoc($result)) {
2383                                                         array_push($affected_ids, $line["id"]);
2384                                                 }
2385
2386                                                 catchupArticlesById($link, $affected_ids, 0);
2387                                         }
2388
2389                                         if ($feed == -4) {
2390                                                 db_query($link, "UPDATE ttrss_user_entries
2391                                                         SET unread = false,last_read = NOW()
2392                                                         WHERE owner_uid = $owner_uid");
2393                                         }
2394
2395                                 } else if ($feed < -10) { // label
2396
2397                                         $label_id = -$feed - 11;
2398
2399                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
2400                                                 SET unread = false, last_read = NOW()
2401                                                         WHERE label_id = '$label_id' AND unread = true
2402                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
2403
2404                                 }
2405
2406                                 ccache_update($link, $feed, $owner_uid, $cat_view);
2407
2408                         } else { // tag
2409                                 db_query($link, "BEGIN");
2410
2411                                 $tag_name = db_escape_string($feed);
2412
2413                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
2414                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
2415
2416                                 while ($line = db_fetch_assoc($result)) {
2417                                         db_query($link, "UPDATE ttrss_user_entries SET
2418                                                 unread = false, last_read = NOW()
2419                                                 WHERE int_id = " . $line["post_int_id"]);
2420                                 }
2421                                 db_query($link, "COMMIT");
2422                         }
2423         }
2424
2425         function getAllCounters($link, $omode = "flc", $active_feed = false) {
2426
2427                 if (!$omode) $omode = "flc";
2428
2429                 $data = getGlobalCounters($link);
2430
2431                 $data = array_merge($data, getVirtCounters($link));
2432
2433                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
2434                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
2435                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
2436                 if (strchr($omode, "c")) {
2437                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
2438                                 $data = array_merge($data, getCategoryCounters($link));
2439                         }
2440                 }
2441
2442                 return $data;
2443         }
2444
2445         function getCategoryCounters($link) {
2446                 $ret_arr = array();
2447
2448                 /* Labels category */
2449
2450                 $cv = array("id" => -2, "kind" => "cat",
2451                         "counter" => getCategoryUnread($link, -2));
2452
2453                 array_push($ret_arr, $cv);
2454
2455                 $age_qpart = getMaxAgeSubquery();
2456
2457                 $result = db_query($link, "SELECT id AS cat_id, value AS unread
2458                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
2459                         WHERE ttrss_cat_counters_cache.feed_id = id AND
2460                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
2461
2462                 while ($line = db_fetch_assoc($result)) {
2463                         $line["cat_id"] = (int) $line["cat_id"];
2464
2465                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
2466                                 "counter" => $line["unread"]);
2467
2468                         array_push($ret_arr, $cv);
2469                 }
2470
2471                 /* Special case: NULL category doesn't actually exist in the DB */
2472
2473                 $cv = array("id" => 0, "kind" => "cat",
2474                         "counter" => ccache_find($link, 0, $_SESSION["uid"], true));
2475
2476                 array_push($ret_arr, $cv);
2477
2478                 return $ret_arr;
2479         }
2480
2481         function getCategoryUnread($link, $cat, $owner_uid = false) {
2482
2483                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2484
2485                 if ($cat >= 0) {
2486
2487                         if ($cat != 0) {
2488                                 $cat_query = "cat_id = '$cat'";
2489                         } else {
2490                                 $cat_query = "cat_id IS NULL";
2491                         }
2492
2493                         $age_qpart = getMaxAgeSubquery();
2494
2495                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
2496                                         AND owner_uid = " . $owner_uid);
2497
2498                         $cat_feeds = array();
2499                         while ($line = db_fetch_assoc($result)) {
2500                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
2501                         }
2502
2503                         if (count($cat_feeds) == 0) return 0;
2504
2505                         $match_part = implode(" OR ", $cat_feeds);
2506
2507                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
2508                                 FROM ttrss_user_entries,ttrss_entries
2509                                 WHERE   unread = true AND ($match_part) AND id = ref_id
2510                                 AND $age_qpart AND owner_uid = " . $owner_uid);
2511
2512                         $unread = 0;
2513
2514                         # this needs to be rewritten
2515                         while ($line = db_fetch_assoc($result)) {
2516                                 $unread += $line["unread"];
2517                         }
2518
2519                         return $unread;
2520                 } else if ($cat == -1) {
2521                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
2522                 } else if ($cat == -2) {
2523
2524                         $result = db_query($link, "
2525                                 SELECT COUNT(unread) AS unread FROM
2526                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2527                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2528                                         ttrss_labels2.owner_uid = '$owner_uid'
2529                                         AND unread = true AND feed_id = ttrss_feeds.id
2530                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
2531
2532                         $unread = db_fetch_result($result, 0, "unread");
2533
2534                         return $unread;
2535
2536                 }
2537         }
2538
2539         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
2540                 if (DB_TYPE == "pgsql") {
2541                         return "ttrss_entries.date_updated >
2542                                 NOW() - INTERVAL '$days days'";
2543                 } else {
2544                         return "ttrss_entries.date_updated >
2545                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
2546                 }
2547         }
2548
2549         function getFeedUnread($link, $feed, $is_cat = false) {
2550                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
2551         }
2552
2553         function getLabelUnread($link, $label_id, $owner_uid = false) {
2554                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2555
2556                 $result = db_query($link, "
2557                         SELECT COUNT(unread) AS unread FROM
2558                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2559                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2560                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
2561                                 AND unread = true AND feed_id = ttrss_feeds.id
2562                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
2563
2564                 if (db_num_rows($result) != 0) {
2565                         return db_fetch_result($result, 0, "unread");
2566                 } else {
2567                         return 0;
2568                 }
2569         }
2570
2571         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
2572                 $owner_uid = false) {
2573
2574                 $n_feed = (int) $feed;
2575
2576                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2577
2578                 if ($unread_only) {
2579                         $unread_qpart = "unread = true";
2580                 } else {
2581                         $unread_qpart = "true";
2582                 }
2583
2584                 $age_qpart = getMaxAgeSubquery();
2585
2586                 if ($is_cat) {
2587                         return getCategoryUnread($link, $n_feed, $owner_uid);
2588                 } if ($feed != "0" && $n_feed == 0) {
2589
2590                         $feed = db_escape_string($feed);
2591
2592                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
2593                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2594                                         AND ref_id = id AND $age_qpart
2595                                         AND $unread_qpart)) AS count FROM ttrss_tags
2596                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
2597                         return db_fetch_result($result, 0, "count");
2598
2599                 } else if ($n_feed == -1) {
2600                         $match_part = "marked = true";
2601                 } else if ($n_feed == -2) {
2602                         $match_part = "published = true";
2603                 } else if ($n_feed == -3) {
2604                         $match_part = "unread = true AND score >= 0";
2605
2606                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2607
2608                         if (DB_TYPE == "pgsql") {
2609                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2610                         } else {
2611                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2612                         }
2613                 } else if ($n_feed == -4) {
2614                         $match_part = "true";
2615                 } else if ($n_feed >= 0) {
2616
2617                         if ($n_feed != 0) {
2618                                 $match_part = "feed_id = '$n_feed'";
2619                         } else {
2620                                 $match_part = "feed_id IS NULL";
2621                         }
2622
2623                 } else if ($feed < -10) {
2624
2625                         $label_id = -$feed - 11;
2626
2627                         return getLabelUnread($link, $label_id, $owner_uid);
2628
2629                 }
2630
2631                 if ($match_part) {
2632
2633                         if ($n_feed != 0) {
2634                                 $from_qpart = "ttrss_user_entries,ttrss_feeds,ttrss_entries";
2635                                 $feeds_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2636                         } else {
2637                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
2638                                 $feeds_qpart = '';
2639                         }
2640
2641                         $query = "SELECT count(int_id) AS unread
2642                                 FROM $from_qpart WHERE
2643                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
2644                                 $age_qpart AND
2645                                 $feeds_qpart
2646                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
2647
2648                         $result = db_query($link, $query);
2649
2650                 } else {
2651
2652                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
2653                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
2654                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
2655                                 AND $unread_qpart AND $age_qpart AND
2656                                         ttrss_tags.owner_uid = " . $owner_uid);
2657                 }
2658
2659                 $unread = db_fetch_result($result, 0, "unread");
2660
2661                 return $unread;
2662         }
2663
2664         function getGlobalUnread($link, $user_id = false) {
2665
2666                 if (!$user_id) {
2667                         $user_id = $_SESSION["uid"];
2668                 }
2669
2670                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
2671                         WHERE owner_uid = '$user_id' AND feed_id > 0");
2672
2673                 $c_id = db_fetch_result($result, 0, "c_id");
2674
2675                 return $c_id;
2676         }
2677
2678         function getGlobalCounters($link, $global_unread = -1) {
2679                 $ret_arr = array();
2680
2681                 if ($global_unread == -1) {
2682                         $global_unread = getGlobalUnread($link);
2683                 }
2684
2685                 $cv = array("id" => "global-unread",
2686                         "counter" => $global_unread);
2687
2688                 array_push($ret_arr, $cv);
2689
2690                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2691                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2692
2693                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
2694
2695                 $cv = array("id" => "subscribed-feeds",
2696                         "counter" => $subscribed_feeds);
2697
2698                 array_push($ret_arr, $cv);
2699
2700                 return $ret_arr;
2701         }
2702
2703         function getSubscribedFeeds($link) {
2704                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2705                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2706
2707                 return db_fetch_result($result, 0, "fn");
2708         }
2709
2710         function getTagCounters($link) {
2711
2712                 $ret_arr = array();
2713
2714                 $age_qpart = getMaxAgeSubquery();
2715
2716                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
2717                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2718                                 AND ref_id = id AND $age_qpart
2719                                 AND unread = true)) AS count FROM ttrss_tags
2720                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
2721                                 ORDER BY count DESC LIMIT 55");
2722
2723                 $tags = array();
2724
2725                 while ($line = db_fetch_assoc($result)) {
2726                         $tags[$line["tag_name"]] += $line["count"];
2727                 }
2728
2729                 foreach (array_keys($tags) as $tag) {
2730                         $unread = $tags[$tag];
2731                         $tag = htmlspecialchars($tag);
2732
2733                         $cv = array("id" => $tag,
2734                                 "kind" => "tag",
2735                                 "counter" => $unread);
2736
2737                         array_push($ret_arr, $cv);
2738                 }
2739
2740                 return $ret_arr;
2741         }
2742
2743         function getVirtCounters($link) {
2744
2745                 $ret_arr = array();
2746
2747                 for ($i = 0; $i >= -4; $i--) {
2748
2749                         $count = getFeedUnread($link, $i);
2750
2751                         $cv = array("id" => $i,
2752                                 "counter" => $count);
2753
2754 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2755 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
2756
2757                         array_push($ret_arr, $cv);
2758                 }
2759
2760                 return $ret_arr;
2761         }
2762
2763         function getLabelCounters($link, $descriptions = false) {
2764
2765                 $ret_arr = array();
2766
2767                 $age_qpart = getMaxAgeSubquery();
2768
2769                 $owner_uid = $_SESSION["uid"];
2770
2771                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
2772                         WHERE owner_uid = '$owner_uid'");
2773
2774                 while ($line = db_fetch_assoc($result)) {
2775
2776                         $id = -$line["id"] - 11;
2777
2778                         $label_name = $line["caption"];
2779                         $count = getFeedUnread($link, $id);
2780
2781                         $cv = array("id" => $id,
2782                                 "counter" => $count);
2783
2784                         if ($descriptions)
2785                                 $cv["description"] = $label_name;
2786
2787 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2788 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2789
2790                         array_push($ret_arr, $cv);
2791                 }
2792
2793                 return $ret_arr;
2794         }
2795
2796         function getFeedCounters($link, $active_feed = false) {
2797
2798                 $ret_arr = array();
2799
2800                 $age_qpart = getMaxAgeSubquery();
2801
2802                 $query = "SELECT ttrss_feeds.id,
2803                                 ttrss_feeds.title,
2804                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
2805                                 last_error, value AS count
2806                         FROM ttrss_feeds, ttrss_counters_cache
2807                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
2808                                 AND ttrss_counters_cache.feed_id = id";
2809
2810                 $result = db_query($link, $query);
2811                 $fctrs_modified = false;
2812
2813                 while ($line = db_fetch_assoc($result)) {
2814
2815                         $id = $line["id"];
2816                         $count = $line["count"];
2817                         $last_error = htmlspecialchars($line["last_error"]);
2818
2819                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
2820
2821                         $has_img = feed_has_icon($id);
2822
2823                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
2824                                 $last_updated = '';
2825
2826                         $cv = array("id" => $id,
2827                                 "updated" => $last_updated,
2828                                 "counter" => $count,
2829                                 "has_img" => (int) $has_img);
2830
2831                         if ($last_error)
2832                                 $cv["error"] = $last_error;
2833
2834 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2835 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2836
2837                         if ($active_feed && $id == $active_feed)
2838                                 $cv["title"] = truncate_string($line["title"], 30);
2839
2840                         array_push($ret_arr, $cv);
2841
2842                 }
2843
2844                 return $ret_arr;
2845         }
2846
2847         function get_pgsql_version($link) {
2848                 $result = db_query($link, "SELECT version() AS version");
2849                 $version = split(" ", db_fetch_result($result, 0, "version"));
2850                 return $version[1];
2851         }
2852
2853         function print_error_xml($code, $add_msg = "") {
2854                 global $ERRORS;
2855
2856                 $error_msg = $ERRORS[$code];
2857
2858                 if ($add_msg) {
2859                         $error_msg = "$error_msg; $add_msg";
2860                 }
2861
2862                 print "<rpc-reply>";
2863                 print "<error error-code=\"$code\" error-msg=\"$error_msg\"/>";
2864                 print "</rpc-reply>";
2865         }
2866
2867         /**
2868          * Subscribes the user to the given feed
2869          *
2870          * @param resource $link       Database connection
2871          * @param string   $url        Feed URL to subscribe to
2872          * @param integer  $cat_id     Category ID the feed shall be added to
2873          * @param string   $auth_login (optional) Feed username
2874          * @param string   $auth_pass  (optional) Feed password
2875          *
2876          * @return integer Status code:
2877          *                 0 - OK, Feed already exists
2878          *                 1 - OK, Feed added
2879          *                 2 - Invalid URL
2880          *                 3 - URL content is HTML, no feeds available
2881          *                 4 - URL content is HTML which contains multiple feeds.
2882          *                     Here you should call extractfeedurls in rpc-backend
2883          *                     to get all possible feeds.
2884          *                 5 - Couldn't download the URL content.
2885          */
2886         function subscribe_to_feed($link, $url, $cat_id = 0,
2887                         $auth_login = '', $auth_pass = '') {
2888
2889                 $url = fix_url($url);
2890
2891                 if (!$url || !validate_feed_url($url)) return 2;
2892
2893                 $update_method = 0;
2894
2895                 if (strpos($url, '://twitter.com') === false) {
2896                         if (!fetch_file_contents($url)) return 5;
2897
2898                         if (url_is_html($url)) {
2899                                 $feedUrls = get_feeds_from_html($url);
2900                                 if (count($feedUrls) == 0) {
2901                                         return 3;
2902                                 } else if (count($feedUrls) > 1) {
2903                                         return 4;
2904                                 }
2905                                 //use feed url as new URL
2906                                 $url = key($feedUrls);
2907                         }
2908
2909                         } else {
2910                                 if (!fetch_twitter_rss($link, $url, $_SESSION['uid']))
2911                                         return 5;
2912
2913                                 $update_method = 3;
2914                         }
2915                 if ($cat_id == "0" || !$cat_id) {
2916                         $cat_qpart = "NULL";
2917                 } else {
2918                         $cat_qpart = "'$cat_id'";
2919                 }
2920
2921                 $result = db_query($link,
2922                         "SELECT id FROM ttrss_feeds
2923                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
2924
2925                 if (db_num_rows($result) == 0) {
2926                         $result = db_query($link,
2927                                 "INSERT INTO ttrss_feeds
2928                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
2929                                 VALUES ('".$_SESSION["uid"]."', '$url',
2930                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
2931
2932                         $result = db_query($link,
2933                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
2934                                         AND owner_uid = " . $_SESSION["uid"]);
2935
2936                         $feed_id = db_fetch_result($result, 0, "id");
2937
2938                         if ($feed_id) {
2939                                 update_rss_feed($link, $feed_id, true);
2940                         }
2941
2942                         return 1;
2943                 } else {
2944                         return 0;
2945                 }
2946         }
2947
2948         function print_feed_select($link, $id, $default_id = "",
2949                 $attributes = "", $include_all_feeds = true) {
2950
2951                 print "<select id=\"$id\" name=\"$id\" $attributes>";
2952                 if ($include_all_feeds) {
2953                         print "<option value=\"0\">".__('All feeds')."</option>";
2954                 }
2955
2956                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
2957                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
2958
2959                 if (db_num_rows($result) > 0 && $include_all_feeds) {
2960                         print "<option disabled>--------</option>";
2961                 }
2962
2963                 while ($line = db_fetch_assoc($result)) {
2964                         if ($line["id"] == $default_id) {
2965                                 $is_selected = "selected=\"1\"";
2966                         } else {
2967                                 $is_selected = "";
2968                         }
2969
2970                         $title = truncate_string(htmlspecialchars($line["title"]), 40);
2971
2972                         printf("<option $is_selected value='%d'>%s</option>",
2973                                 $line["id"], $title);
2974                 }
2975
2976                 print "</select>";
2977         }
2978
2979         function print_feed_cat_select($link, $id, $default_id = "",
2980                 $attributes = "", $include_all_cats = true) {
2981
2982                 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
2983
2984                 if ($include_all_cats) {
2985                         print "<option value=\"0\">".__('Uncategorized')."</option>";
2986                 }
2987
2988                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
2989                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
2990
2991                 if (db_num_rows($result) > 0 && $include_all_cats) {
2992                         print "<option disabled=\"1\">--------</option>";
2993                 }
2994
2995                 while ($line = db_fetch_assoc($result)) {
2996                         if ($line["id"] == $default_id) {
2997                                 $is_selected = "selected=\"1\"";
2998                         } else {
2999                                 $is_selected = "";
3000                         }
3001
3002                         if ($line["title"])
3003                                 printf("<option $is_selected value='%d'>%s</option>",
3004                                         $line["id"], htmlspecialchars($line["title"]));
3005                 }
3006
3007 #               print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
3008
3009                 print "</select>";
3010         }
3011
3012         function checkbox_to_sql_bool($val) {
3013                 return ($val == "on") ? "true" : "false";
3014         }
3015
3016         function getFeedCatTitle($link, $id) {
3017                 if ($id == -1) {
3018                         return __("Special");
3019                 } else if ($id < -10) {
3020                         return __("Labels");
3021                 } else if ($id > 0) {
3022                         $result = db_query($link, "SELECT ttrss_feed_categories.title
3023                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
3024                                         cat_id = ttrss_feed_categories.id");
3025                         if (db_num_rows($result) == 1) {
3026                                 return db_fetch_result($result, 0, "title");
3027                         } else {
3028                                 return __("Uncategorized");
3029                         }
3030                 } else {
3031                         return "getFeedCatTitle($id) failed";
3032                 }
3033
3034         }
3035
3036         function getFeedIcon($id) {
3037                 switch ($id) {
3038                 case 0:
3039                         return "images/archive.png";
3040                         break;
3041                 case -1:
3042                         return "images/mark_set.png";
3043                         break;
3044                 case -2:
3045                         return "images/pub_set.png";
3046                         break;
3047                 case -3:
3048                         return "images/fresh.png";
3049                         break;
3050                 case -4:
3051                         return "images/tag.png";
3052                         break;
3053                 default:
3054                         if ($id < -10) {
3055                                 return "images/label.png";
3056                         } else {
3057                                 if (file_exists(ICONS_DIR . "/$id.ico"))
3058                                         return ICONS_URL . "/$id.ico";
3059                         }
3060                         break;
3061                 }
3062         }
3063
3064         function getFeedTitle($link, $id) {
3065                 if ($id == -1) {
3066                         return __("Starred articles");
3067                 } else if ($id == -2) {
3068                         return __("Published articles");
3069                 } else if ($id == -3) {
3070                         return __("Fresh articles");
3071                 } else if ($id == -4) {
3072                         return __("All articles");
3073                 } else if ($id === 0 || $id === "0") {
3074                         return __("Archived articles");
3075                 } else if ($id < -10) {
3076                         $label_id = -$id - 11;
3077                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
3078                         if (db_num_rows($result) == 1) {
3079                                 return db_fetch_result($result, 0, "caption");
3080                         } else {
3081                                 return "Unknown label ($label_id)";
3082                         }
3083
3084                 } else if ($id > 0) {
3085                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
3086                         if (db_num_rows($result) == 1) {
3087                                 return db_fetch_result($result, 0, "title");
3088                         } else {
3089                                 return "Unknown feed ($id)";
3090                         }
3091                 } else {
3092                         return $id;
3093                 }
3094         }
3095
3096         function get_session_cookie_name() {
3097                 return ((!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME);
3098         }
3099
3100         function make_init_params($link) {
3101                 $params = array();
3102
3103                 $params["theme"] = get_user_theme($link);
3104                 $params["theme_options"] = get_user_theme_options($link);
3105                 $params["daemon_enabled"] = ENABLE_UPDATE_DAEMON;
3106
3107                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
3108                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
3109                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
3110                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
3111
3112                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
3113                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
3114                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
3115                         "HIDE_READ_SHOWS_SPECIAL", "HIDE_FEEDLIST", "COMBINED_DISPLAY_MODE") as $param) {
3116
3117                                  $params[strtolower($param)] = (int) get_pref($link, $param);
3118                  }
3119
3120                 $params["icons_url"] = ICONS_URL;
3121                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
3122                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
3123                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
3124                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
3125                 $params["prefs_active_tab"] = get_pref($link, "_PREFS_ACTIVE_TAB");
3126                 $params["infobox_disable_overlay"] = get_pref($link, "_INFOBOX_DISABLE_OVERLAY");
3127                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
3128                 $params["offline_enabled"] = (int) get_pref($link, "ENABLE_OFFLINE_READING");
3129
3130                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3131                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3132
3133                 $max_feed_id = db_fetch_result($result, 0, "mid");
3134                 $num_feeds = db_fetch_result($result, 0, "nf");
3135
3136                 $params["max_feed_id"] = (int) $max_feed_id;
3137                 $params["num_feeds"] = (int) $num_feeds;
3138
3139                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
3140
3141                 return $params;
3142         }
3143
3144         function print_runtime_info($link) {
3145                 print "<runtime-info><![CDATA[";
3146                 print json_encode(make_runtime_info($link));
3147                 print "]]></runtime-info>";
3148         }
3149
3150         function make_runtime_info($link) {
3151                 $data = array();
3152
3153                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3154                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3155
3156                 $max_feed_id = db_fetch_result($result, 0, "mid");
3157                 $num_feeds = db_fetch_result($result, 0, "nf");
3158
3159                 $data["max_feed_id"] = (int) $max_feed_id;
3160                 $data["num_feeds"] = (int) $num_feeds;
3161
3162                 $data['last_article_id'] = getLastArticleId($link);
3163                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
3164
3165                 if (ENABLE_UPDATE_DAEMON) {
3166
3167                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
3168
3169                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
3170
3171                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
3172
3173                                 if ($stamp) {
3174                                         $stamp_delta = time() - $stamp;
3175
3176                                         if ($stamp_delta > 1800) {
3177                                                 $stamp_check = 0;
3178                                         } else {
3179                                                 $stamp_check = 1;
3180                                                 $_SESSION["daemon_stamp_check"] = time();
3181                                         }
3182
3183                                         $data['daemon_stamp_ok'] = $stamp_check;
3184
3185                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
3186
3187                                         $data['daemon_stamp'] = $stamp_fmt;
3188                                 }
3189                         }
3190                 }
3191
3192                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
3193                                 $new_version_details = @check_for_update($link);
3194
3195                                 $data['new_version_available'] = (int) ($new_version_details != false);
3196
3197                                 $_SESSION["last_version_check"] = time();
3198                 }
3199
3200                 return $data;
3201         }
3202
3203         function getSearchSql($search, $match_on) {
3204
3205                 $search_query_part = "";
3206
3207                 $keywords = split(" ", $search);
3208                 $query_keywords = array();
3209
3210                 if ($match_on == "both") {
3211
3212                         foreach ($keywords as $k) {
3213                                 if (strpos($k, "-") === 0) {
3214                                         $k = substr($k, 1);
3215                                         $not = "NOT";
3216                                 } else {
3217                                         $not = "";
3218                                 }
3219
3220                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
3221                                         OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3222                         }
3223
3224                         $search_query_part = implode("AND", $query_keywords) . " AND ";
3225
3226                 } else if ($match_on == "title") {
3227
3228                         foreach ($keywords as $k) {
3229                                 if (strpos($k, "-") === 0) {
3230                                         $k = substr($k, 1);
3231                                         $not = "NOT";
3232                                 } else {
3233                                         $not = "";
3234                                 }
3235
3236                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
3237                         }
3238
3239                         $search_query_part = implode("AND", $query_keywords) . " AND ";
3240
3241                 } else if ($match_on == "content") {
3242
3243                         foreach ($keywords as $k) {
3244                                 if (strpos($k, "-") === 0) {
3245                                         $k = substr($k, 1);
3246                                         $not = "NOT";
3247                                 } else {
3248                                         $not = "";
3249                                 }
3250
3251                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3252                         }
3253                 }
3254
3255                 $search_query_part = implode("AND", $query_keywords);
3256
3257                 return $search_query_part;
3258         }
3259
3260         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0) {
3261
3262                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3263
3264                 $ext_tables_part = "";
3265
3266                         if ($search) {
3267
3268                                 if (SPHINX_ENABLED) {
3269                                         $ids = join(",", @sphinx_search($search, 0, 500));
3270
3271                                         if ($ids)
3272                                                 $search_query_part = "ref_id IN ($ids) AND ";
3273                                         else
3274                                                 $search_query_part = "ref_id = -1 AND ";
3275
3276                                 } else {
3277                                         $search_query_part = getSearchSql($search, $match_on);
3278                                         $search_query_part .= " AND ";
3279                                 }
3280
3281                         } else {
3282                                 $search_query_part = "";
3283                         }
3284
3285                         $view_query_part = "";
3286
3287                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
3288                                 if ($search) {
3289                                         $view_query_part = " ";
3290                                 } else if ($feed != -1) {
3291                                         $unread = getFeedUnread($link, $feed, $cat_view);
3292                                         if ($unread > 0) {
3293                                                 $view_query_part = " unread = true AND ";
3294                                         }
3295                                 }
3296                         }
3297
3298                         if ($view_mode == "marked") {
3299                                 $view_query_part = " marked = true AND ";
3300                         }
3301
3302                         if ($view_mode == "published") {
3303                                 $view_query_part = " published = true AND ";
3304                         }
3305
3306                         if ($view_mode == "unread") {
3307                                 $view_query_part = " unread = true AND ";
3308                         }
3309
3310                         if ($view_mode == "updated") {
3311                                 $view_query_part = " (last_read is null and unread = false) AND ";
3312                         }
3313
3314                         if ($limit > 0) {
3315                                 $limit_query_part = "LIMIT " . $limit;
3316                         }
3317
3318                         $vfeed_query_part = "";
3319
3320                         // override query strategy and enable feed display when searching globally
3321                         if ($search && $search_mode == "all_feeds") {
3322                                 $query_strategy_part = "ttrss_entries.id > 0";
3323                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3324                         /* tags */
3325                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
3326                                 $query_strategy_part = "ttrss_entries.id > 0";
3327                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
3328                                         id = feed_id) as feed_title,";
3329                         } else if ($feed > 0 && $search && $search_mode == "this_cat") {
3330
3331                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3332
3333                                 $tmp_result = false;
3334
3335                                 if ($cat_view) {
3336                                         $tmp_result = db_query($link, "SELECT id
3337                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
3338                                 } else {
3339                                         $tmp_result = db_query($link, "SELECT id
3340                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
3341                                                         WHERE id = '$feed') AND id != '$feed'");
3342                                 }
3343
3344                                 $cat_siblings = array();
3345
3346                                 if (db_num_rows($tmp_result) > 0) {
3347                                         while ($p = db_fetch_assoc($tmp_result)) {
3348                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
3349                                         }
3350
3351                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
3352                                                 $feed, implode(" OR ", $cat_siblings));
3353
3354                                 } else {
3355                                         $query_strategy_part = "ttrss_entries.id > 0";
3356                                 }
3357
3358                         } else if ($feed > 0) {
3359
3360                                 if ($cat_view) {
3361
3362                                         if ($feed > 0) {
3363                                                 $query_strategy_part = "cat_id = '$feed'";
3364                                         } else {
3365                                                 $query_strategy_part = "cat_id IS NULL";
3366                                         }
3367
3368                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3369
3370                                 } else {
3371                                         $query_strategy_part = "feed_id = '$feed'";
3372                                 }
3373                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
3374                                 $query_strategy_part = "feed_id IS NULL";
3375                         } else if ($feed == 0 && $cat_view) { // uncategorized
3376                                 $query_strategy_part = "cat_id IS NULL";
3377                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3378                         } else if ($feed == -1) { // starred virtual feed
3379                                 $query_strategy_part = "marked = true";
3380                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3381                         } else if ($feed == -2) { // published virtual feed OR labels category
3382
3383                                 if (!$cat_view) {
3384                                         $query_strategy_part = "published = true";
3385                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3386                                 } else {
3387                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3388
3389                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3390
3391                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
3392                                                 ttrss_user_labels2.article_id = ref_id";
3393
3394                                 }
3395
3396                         } else if ($feed == -3) { // fresh virtual feed
3397                                 $query_strategy_part = "unread = true AND score >= 0";
3398
3399                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
3400
3401                                 if (DB_TYPE == "pgsql") {
3402                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
3403                                 } else {
3404                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
3405                                 }
3406
3407                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3408                         } else if ($feed == -4) { // all articles virtual feed
3409                                 $query_strategy_part = "true";
3410                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3411                         } else if ($feed <= -10) { // labels
3412                                 $label_id = -$feed - 11;
3413
3414                                 $query_strategy_part = "label_id = '$label_id' AND
3415                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
3416                                         ttrss_user_labels2.article_id = ref_id";
3417
3418                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3419                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3420
3421                         } else {
3422                                 $query_strategy_part = "id > 0"; // dumb
3423                         }
3424
3425                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3426                                 $date_sort_field = "updated";
3427                         } else {
3428                                 $date_sort_field = "date_entered";
3429                         }
3430
3431                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
3432                                 $order_by = "$date_sort_field";
3433                         } else {
3434                                 $order_by = "$date_sort_field DESC";
3435                         }
3436
3437                         if ($view_mode != "noscores") {
3438                                 $order_by = "score DESC, $order_by";
3439                         }
3440
3441                         if ($override_order) {
3442                                 $order_by = $override_order;
3443                         }
3444
3445                         $feed_title = "";
3446
3447                         if ($search) {
3448                                 $feed_title = "Search results";
3449                         } else {
3450                                 if ($cat_view) {
3451                                         $feed_title = getCategoryTitle($link, $feed);
3452                                 } else {
3453                                         if ((int)$feed == $feed && $feed > 0) {
3454                                                 $result = db_query($link, "SELECT title,site_url,last_error
3455                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
3456
3457                                                 $feed_title = db_fetch_result($result, 0, "title");
3458                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
3459                                                 $last_error = db_fetch_result($result, 0, "last_error");
3460                                         } else {
3461                                                 $feed_title = getFeedTitle($link, $feed);
3462                                         }
3463                                 }
3464                         }
3465
3466                         $content_query_part = "content as content_preview,";
3467
3468                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
3469
3470                                 if ($feed >= 0) {
3471                                         $feed_kind = "Feeds";
3472                                 } else {
3473                                         $feed_kind = "Labels";
3474                                 }
3475
3476                                 if ($limit_query_part) {
3477                                         $offset_query_part = "OFFSET $offset";
3478                                 }
3479
3480                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
3481                                         if (!$override_order) {
3482                                                 $order_by = "ttrss_feeds.title, $order_by";
3483                                         }
3484                                 }
3485
3486                                 if ($feed != "0") {
3487                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
3488                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
3489
3490                                 } else {
3491                                         $from_qpart = "ttrss_entries,ttrss_user_entries$ext_tables_part
3492                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
3493                                 }
3494
3495                                 $query = "SELECT DISTINCT
3496                                                 date_entered,
3497                                                 guid,
3498                                                 ttrss_entries.id,ttrss_entries.title,
3499                                                 updated,
3500                                                 note,
3501                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
3502                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3503                                                 $vfeed_query_part
3504                                                 $content_query_part
3505                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3506                                                 author,score
3507                                         FROM
3508                                                 $from_qpart
3509                                         WHERE
3510                                         $feed_check_qpart
3511                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
3512                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
3513                                         $search_query_part
3514                                         $view_query_part
3515                                         $query_strategy_part ORDER BY $order_by
3516                                         $limit_query_part $offset_query_part";
3517
3518                                 if ($_REQUEST["debug"]) print $query;
3519
3520                                 $result = db_query($link, $query);
3521
3522                         } else {
3523                                 // browsing by tag
3524
3525                                 $feed_kind = "Tags";
3526
3527                                 $result = db_query($link, "SELECT DISTINCT
3528                                         date_entered,
3529                                         guid,
3530                                         note,
3531                                         ttrss_entries.id as id,title,
3532                                         updated,
3533                                         unread,feed_id,orig_feed_id,
3534                                         marked,link,last_read,
3535                                         ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3536                                         $vfeed_query_part
3537                                         $content_query_part
3538                                         ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3539                                         score
3540                                         FROM
3541                                                 ttrss_entries,ttrss_user_entries,ttrss_tags
3542                                         WHERE
3543                                                 ref_id = ttrss_entries.id AND
3544                                                 ttrss_user_entries.owner_uid = '$owner_uid' AND
3545                                                 post_int_id = int_id AND tag_name = '$feed' AND
3546                                                 $view_query_part
3547                                                 $search_query_part
3548                                                 $query_strategy_part ORDER BY $order_by
3549                                         $limit_query_part");
3550                         }
3551
3552                         return array($result, $feed_title, $feed_site_url, $last_error);
3553
3554         }
3555
3556         function generate_syndicated_feed($link, $owner_uid, $feed, $is_cat,
3557                 $limit, $search, $search_mode, $match_on, $view_mode = false) {
3558
3559                 $note_style =   "float : right; background-color : #fff7d5; border-width : 1px; ".
3560                         "padding : 5px; border-style : dashed; border-color : #e7d796;".
3561                         "margin-bottom : 1em; color : #9a8c59;";
3562
3563                 if (!$limit) $limit = 30;
3564
3565                 if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3566                         $date_sort_field = "updated";
3567                 } else {
3568                         $date_sort_field = "date_entered";
3569                 }
3570
3571                 $qfh_ret = queryFeedHeadlines($link, $feed,
3572                         $limit, $view_mode, $is_cat, $search, $search_mode,
3573                         $match_on, "$date_sort_field DESC", 0, $owner_uid);
3574
3575                 $result = $qfh_ret[0];
3576                 $feed_title = htmlspecialchars($qfh_ret[1]);
3577                 $feed_site_url = $qfh_ret[2];
3578                 $last_error = $qfh_ret[3];
3579
3580 //              if (!$feed_site_url) $feed_site_url = "http://localhost/";
3581
3582                 print "<?xml version=\"1.0\" encoding=\"utf-8\"?>
3583                         <?xml-stylesheet type=\"text/xsl\" href=\"rss.xsl\"?>
3584                         <rss version=\"2.0\">
3585                         <channel>
3586                         <title>$feed_title</title>
3587                         <link>$feed_site_url</link>
3588                         <description>Feed generated by Tiny Tiny RSS</description>";
3589
3590                 while ($line = db_fetch_assoc($result)) {
3591                         print "<item>";
3592                         print "<guid>" . htmlspecialchars($line["guid"]) . "</guid>";
3593                         print "<link>" . htmlspecialchars($line["link"]) . "</link>";
3594
3595                         $tags = get_article_tags($link, $line["id"], $owner_uid);
3596
3597                         foreach ($tags as $tag) {
3598                                 print "<category>" . htmlspecialchars($tag) . "</category>";
3599                         }
3600
3601                         $rfc822_date = date('r', strtotime($line["updated"]));
3602
3603                         print "<pubDate>$rfc822_date</pubDate>";
3604
3605                         if ($line["author"]) {
3606                                 print "<author>" . htmlspecialchars($line["author"]) . "</author>";
3607                         }
3608
3609                         print "<title><![CDATA[" .
3610                                 htmlspecialchars($line["title"]) . "]]></title>";
3611
3612                         print "<description><![CDATA[";
3613
3614                         if ($line["note"]) {
3615                                 print "<div style='$note_style'>";
3616                                 print $line["note"];
3617                                 print "</div>";
3618                         }
3619
3620                         print sanitize_rss($link, $line["content_preview"], false, $owner_uid);
3621                         print "]]></description>";
3622
3623                         $enclosures = get_article_enclosures($link, $line["id"]);
3624
3625                         foreach ($enclosures as $e) {
3626                                 $type = htmlspecialchars($e['content_type']);
3627                                 $url = htmlspecialchars($e['content_url']);
3628                                 $length = $e['duration'];
3629                                 print "<enclosure url=\"$url\" type=\"$type\" length=\"$length\"/>";
3630                         }
3631
3632                         print "</item>";
3633                 }
3634
3635                 print "</channel></rss>";
3636
3637         }
3638
3639         function getCategoryTitle($link, $cat_id) {
3640
3641                 if ($cat_id == -1) {
3642                         return __("Special");
3643                 } else if ($cat_id == -2) {
3644                         return __("Labels");
3645                 } else {
3646
3647                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
3648                                 id = '$cat_id'");
3649
3650                         if (db_num_rows($result) == 1) {
3651                                 return db_fetch_result($result, 0, "title");
3652                         } else {
3653                                 return "Uncategorized";
3654                         }
3655                 }
3656         }
3657
3658         function sanitize_rss($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
3659                 global $purifier;
3660
3661                 if (!$owner) $owner = $_SESSION["uid"];
3662
3663                 $res = trim($str); if (!$res) return '';
3664
3665                 if (get_pref($link, "STRIP_UNSAFE_TAGS", $owner) || $force_strip_tags) {
3666                         $res = $purifier->purify($res);
3667                 }
3668
3669                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
3670                         $res = preg_replace('/<img[^>]+>/is', '', $res);
3671                 }
3672
3673                 $res = rewrite_urls($res);
3674
3675                 $charset_hack = '<head>
3676                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
3677                 </head>';
3678
3679                 $res = trim($res); if (!$res) return '';
3680
3681                 libxml_use_internal_errors(true);
3682
3683                 $doc = new DOMDocument();
3684                 $doc->loadHTML($charset_hack . $res);
3685                 $xpath = new DOMXPath($doc);
3686
3687                 $entries = $xpath->query('(//a[@href]|//img[@src])');
3688                 $br_inserted = 0;
3689
3690                 foreach ($entries as $entry) {
3691
3692                         if ($site_url) {
3693
3694                                 if ($entry->hasAttribute('href'))
3695                                         $entry->setAttribute('href',
3696                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
3697
3698                                 if ($entry->hasAttribute('src'))
3699                                         $entry->setAttribute('src',
3700                                                 rewrite_relative_url($site_url, $entry->getAttribute('src')));
3701                         }
3702
3703                         if (strtolower($entry->nodeName) == "a") {
3704                                 $entry->setAttribute("target", "_blank");
3705                         }
3706
3707                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
3708                                 $br = $doc->createElement("br");
3709
3710                                 if ($entry->parentNode->nextSibling) {
3711                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
3712                                         $br_inserted = 1;
3713                                 }
3714
3715                         }
3716                 }
3717
3718                 $node = $doc->getElementsByTagName('body')->item(0);
3719
3720                 return $doc->saveXML($node);
3721         }
3722
3723         /**
3724          * Send by mail a digest of last articles.
3725          *
3726          * @param mixed $link The database connection.
3727          * @param integer $limit The maximum number of articles by digest.
3728          * @return boolean Return false if digests are not enabled.
3729          */
3730         function send_headlines_digests($link, $limit = 100) {
3731
3732                 if (!DIGEST_ENABLE) return false;
3733
3734                 $user_limit = DIGEST_EMAIL_LIMIT;
3735                 $days = 1;
3736
3737                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
3738
3739                 if (DB_TYPE == "pgsql") {
3740                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
3741                 } else if (DB_TYPE == "mysql") {
3742                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
3743                 }
3744
3745                 $result = db_query($link, "SELECT id,email FROM ttrss_users
3746                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
3747
3748                 while ($line = db_fetch_assoc($result)) {
3749
3750                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
3751                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
3752
3753                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
3754
3755                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
3756                                 $digest = $tuple[0];
3757                                 $headlines_count = $tuple[1];
3758                                 $affected_ids = $tuple[2];
3759                                 $digest_text = $tuple[3];
3760
3761                                 if ($headlines_count > 0) {
3762
3763                                         $mail = new PHPMailer();
3764
3765                                         $mail->PluginDir = "lib/phpmailer/";
3766                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
3767
3768                                         $mail->CharSet = "UTF-8";
3769
3770                                         $mail->From = DIGEST_FROM_ADDRESS;
3771                                         $mail->FromName = DIGEST_FROM_NAME;
3772                                         $mail->AddAddress($line["email"], $line["login"]);
3773
3774                                         if (DIGEST_SMTP_HOST) {
3775                                                 $mail->Host = DIGEST_SMTP_HOST;
3776                                                 $mail->Mailer = "smtp";
3777                                                 $mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
3778                                                 $mail->Username = DIGEST_SMTP_LOGIN;
3779                                                 $mail->Password = DIGEST_SMTP_PASSWORD;
3780                                         }
3781
3782                                         $mail->IsHTML(true);
3783                                         $mail->Subject = DIGEST_SUBJECT;
3784                                         $mail->Body = $digest;
3785                                         $mail->AltBody = $digest_text;
3786
3787                                         $rc = $mail->Send();
3788
3789                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
3790
3791                                         print "RC=$rc\n";
3792
3793                                         if ($rc && $do_catchup) {
3794                                                 print "Marking affected articles as read...\n";
3795                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
3796                                         }
3797                                 } else {
3798                                         print "No headlines\n";
3799                                 }
3800
3801                                 db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
3802                                         WHERE id = " . $line["id"]);
3803                         }
3804                 }
3805
3806                 print "All done.\n";
3807
3808         }
3809
3810         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
3811
3812                 require_once "lib/MiniTemplator.class.php";
3813
3814                 $tpl = new MiniTemplator;
3815                 $tpl_t = new MiniTemplator;
3816
3817                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
3818                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
3819
3820                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
3821                 $tpl->setVariable('CUR_TIME', date('G:i'));
3822
3823                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
3824                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
3825
3826                 $affected_ids = array();
3827
3828                 if (DB_TYPE == "pgsql") {
3829                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
3830                 } else if (DB_TYPE == "mysql") {
3831                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
3832                 }
3833
3834                 $result = db_query($link, "SELECT ttrss_entries.title,
3835                                 ttrss_feeds.title AS feed_title,
3836                                 date_updated,
3837                                 ttrss_user_entries.ref_id,
3838                                 link,
3839                                 SUBSTRING(content, 1, 120) AS excerpt,
3840                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
3841                         FROM
3842                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
3843                         WHERE
3844                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
3845                                 AND include_in_digest = true
3846                                 AND $interval_query
3847                                 AND ttrss_user_entries.owner_uid = $user_id
3848                                 AND unread = true
3849                         ORDER BY ttrss_feeds.title, date_updated DESC
3850                         LIMIT $limit");
3851
3852                 $cur_feed_title = "";
3853
3854                 $headlines_count = db_num_rows($result);
3855
3856                 $headlines = array();
3857
3858                 while ($line = db_fetch_assoc($result)) {
3859                         array_push($headlines, $line);
3860                 }
3861
3862                 for ($i = 0; $i < sizeof($headlines); $i++) {
3863
3864                         $line = $headlines[$i];
3865
3866                         array_push($affected_ids, $line["ref_id"]);
3867
3868                         $updated = make_local_datetime($link, $line['last_updated'], false,
3869                                 $user_id);
3870
3871                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
3872                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
3873                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
3874                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
3875                         $tpl->setVariable('ARTICLE_EXCERPT',
3876                                 truncate_string(strip_tags($line["excerpt"]), 100));
3877
3878                         $tpl->addBlock('article');
3879
3880                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
3881                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
3882                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
3883                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
3884 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
3885 //                              truncate_string(strip_tags($line["excerpt"]), 100));
3886
3887                         $tpl_t->addBlock('article');
3888
3889                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
3890                                 $tpl->addBlock('feed');
3891                                 $tpl_t->addBlock('feed');
3892                         }
3893
3894                 }
3895
3896                 $tpl->addBlock('digest');
3897                 $tpl->generateOutputToString($tmp);
3898
3899                 $tpl_t->addBlock('digest');
3900                 $tpl_t->generateOutputToString($tmp_t);
3901
3902                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
3903         }
3904
3905         function check_for_update($link) {
3906                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
3907                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
3908
3909                         $version_data = @fetch_file_contents($version_url);
3910
3911                         if ($version_data) {
3912                                 $version_data = json_decode($version_data, true);
3913                                 if ($version_data && $version_data['version']) {
3914
3915                                         if (version_compare(VERSION, $version_data['version']) == -1) {
3916                                                 return $version_data;
3917                                         }
3918                                 }
3919                         }
3920                 }
3921                 return false;
3922         }
3923
3924         function markArticlesById($link, $ids, $cmode) {
3925
3926                 $tmp_ids = array();
3927
3928                 foreach ($ids as $id) {
3929                         array_push($tmp_ids, "ref_id = '$id'");
3930                 }
3931
3932                 $ids_qpart = join(" OR ", $tmp_ids);
3933
3934                 if ($cmode == 0) {
3935                         db_query($link, "UPDATE ttrss_user_entries SET
3936                         marked = false,last_read = NOW()
3937                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3938                 } else if ($cmode == 1) {
3939                         db_query($link, "UPDATE ttrss_user_entries SET
3940                         marked = true
3941                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3942                 } else {
3943                         db_query($link, "UPDATE ttrss_user_entries SET
3944                         marked = NOT marked,last_read = NOW()
3945                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3946                 }
3947         }
3948
3949         function publishArticlesById($link, $ids, $cmode) {
3950
3951                 $tmp_ids = array();
3952
3953                 foreach ($ids as $id) {
3954                         array_push($tmp_ids, "ref_id = '$id'");
3955                 }
3956
3957                 $ids_qpart = join(" OR ", $tmp_ids);
3958
3959                 if ($cmode == 0) {
3960                         db_query($link, "UPDATE ttrss_user_entries SET
3961                         published = false,last_read = NOW()
3962                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3963                 } else if ($cmode == 1) {
3964                         db_query($link, "UPDATE ttrss_user_entries SET
3965                         published = true
3966                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3967                 } else {
3968                         db_query($link, "UPDATE ttrss_user_entries SET
3969                         published = NOT published,last_read = NOW()
3970                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3971                 }
3972         }
3973
3974         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
3975
3976                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3977                 if (count($ids) == 0) return;
3978
3979                 $tmp_ids = array();
3980
3981                 foreach ($ids as $id) {
3982                         array_push($tmp_ids, "ref_id = '$id'");
3983                 }
3984
3985                 $ids_qpart = join(" OR ", $tmp_ids);
3986
3987                 if ($cmode == 0) {
3988                         db_query($link, "UPDATE ttrss_user_entries SET
3989                         unread = false,last_read = NOW()
3990                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3991                 } else if ($cmode == 1) {
3992                         db_query($link, "UPDATE ttrss_user_entries SET
3993                         unread = true
3994                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3995                 } else {
3996                         db_query($link, "UPDATE ttrss_user_entries SET
3997                         unread = NOT unread,last_read = NOW()
3998                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3999                 }
4000
4001                 /* update ccache */
4002
4003                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
4004                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4005
4006                 while ($line = db_fetch_assoc($result)) {
4007                         ccache_update($link, $line["feed_id"], $owner_uid);
4008                 }
4009         }
4010
4011         function catchupArticleById($link, $id, $cmode) {
4012
4013                 if ($cmode == 0) {
4014                         db_query($link, "UPDATE ttrss_user_entries SET
4015                         unread = false,last_read = NOW()
4016                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4017                 } else if ($cmode == 1) {
4018                         db_query($link, "UPDATE ttrss_user_entries SET
4019                         unread = true
4020                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4021                 } else {
4022                         db_query($link, "UPDATE ttrss_user_entries SET
4023                         unread = NOT unread,last_read = NOW()
4024                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4025                 }
4026
4027                 $feed_id = getArticleFeed($link, $id);
4028                 ccache_update($link, $feed_id, $_SESSION["uid"]);
4029         }
4030
4031         function make_guid_from_title($title) {
4032                 return preg_replace("/[ \"\',.:;]/", "-",
4033                         mb_strtolower(strip_tags($title), 'utf-8'));
4034         }
4035
4036         function print_headline_subtoolbar($link, $feed_site_url, $feed_title,
4037                         $feed_id, $is_cat, $search, $match_on,
4038                         $search_mode, $view_mode, $error) {
4039
4040                         $page_prev_link = "viewFeedGoPage(-1)";
4041                         $page_next_link = "viewFeedGoPage(1)";
4042                         $page_first_link = "viewFeedGoPage(0)";
4043
4044                         $catchup_page_link = "catchupPage()";
4045                         $catchup_feed_link = "catchupCurrentFeed()";
4046                         $catchup_sel_link = "catchupSelection()";
4047
4048                         $archive_sel_link = "archiveSelection()";
4049                         $delete_sel_link = "deleteSelection()";
4050
4051                         $sel_all_link = "selectArticles('all')";
4052                         $sel_unread_link = "selectArticles('unread')";
4053                         $sel_none_link = "selectArticles('none')";
4054                         $sel_inv_link = "selectArticles('invert')";
4055
4056                         $tog_unread_link = "selectionToggleUnread()";
4057                         $tog_marked_link = "selectionToggleMarked()";
4058                         $tog_published_link = "selectionTogglePublished()";
4059
4060                         print "<div id=\"subtoolbar_main\">";
4061
4062                         print __('Select:')."
4063                                 <a href=\"#\" onclick=\"$sel_all_link\">".__('All')."</a>,
4064                                 <a href=\"#\" onclick=\"$sel_unread_link\">".__('Unread')."</a>,
4065                                 <a href=\"#\" onclick=\"$sel_inv_link\">".__('Invert')."</a>,
4066                                 <a href=\"#\" onclick=\"$sel_none_link\">".__('None')."</a></li>";
4067
4068                         print " ";
4069
4070                         print "<select dojoType=\"dijit.form.Select\"
4071                                 onchange=\"headlineActionsChange(this)\">";
4072                         print "<option value=\"false\">".__('Actions...')."</option>";
4073
4074                         print "<option value=\"0\" disabled=\"1\">".__('Selection toggle:')."</option>";
4075
4076                         print "<option value=\"$tog_unread_link\">".__('Unread')."</option>
4077                                 <option value=\"$tog_marked_link\">".__('Starred')."</option>
4078                                 <option value=\"$tog_published_link\">".__('Published')."</option>";
4079
4080                         print "<option value=\"0\" disabled=\"1\">".__('Selection:')."</option>";
4081
4082                         print "<option value=\"$catchup_sel_link\">".__('Mark as read')."</option>";
4083
4084                         if ($feed_id != "0") {
4085                                 print "<option value=\"$archive_sel_link\">".__('Archive')."</option>";
4086                         } else {
4087                                 print "<option value=\"$archive_sel_link\">".__('Move back')."</option>";
4088                                 print "<option value=\"$delete_sel_link\">".__('Delete')."</option>";
4089
4090                         }
4091
4092                         print "<option value=\"emailArticle(false)\">".__('Forward by email').
4093                                 "</option>";
4094
4095                         $rss_link = htmlspecialchars(get_self_url_prefix() .
4096                                 "/backend.php?op=rss&id=$feed_id&is_cat=$is_cat$view_mode$search_q");
4097
4098                         print "<option value=\"0\" disabled=\"1\">".__('Feed:')."</option>";
4099
4100                         print "<option value=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">".__('View as RSS')."</option>";
4101
4102                         print "</select>";
4103
4104                         print "</div>";
4105
4106                         print "<div id=\"subtoolbar_ftitle\">";
4107
4108                         if ($feed_site_url) {
4109                                 $target = "target=\"_blank\"";
4110                                 print "<a title=\"".__("Visit the website")."\" $target href=\"$feed_site_url\">".
4111                                         truncate_string($feed_title,30)."</a>";
4112
4113                                 if ($error) {
4114                                         print " (<span class=\"error\" title=\"$error\">Error</span>)";
4115                                 }
4116
4117                         } else {
4118                                 if ($feed_id < -10) {
4119                                         $label_id = -11-$feed_id;
4120
4121                                         $result = db_query($link, "SELECT fg_color, bg_color
4122                                                 FROM ttrss_labels2 WHERE id = '$label_id' AND owner_uid = " .
4123                                                 $_SESSION["uid"]);
4124
4125                                         if (db_num_rows($result) != 0) {
4126                                                 $fg_color = db_fetch_result($result, 0, "fg_color");
4127                                                 $bg_color = db_fetch_result($result, 0, "bg_color");
4128
4129                                                 print "<span style='background : $bg_color; color : $fg_color'>";
4130                                                 print $feed_title;
4131                                                 print "</span>";
4132                                         } else {
4133                                                 print $feed_title;
4134                                         }
4135
4136                                 } else {
4137                                         print $feed_title;
4138                                 }
4139                         }
4140
4141                         if ($search) {
4142                                 $search_q = "&q=$search&m=$match_on&smode=$search_mode";
4143                         } else {
4144                                 $search_q = "";
4145                         }
4146
4147                         // Adaptive doesn't really make any sense for generated feeds
4148                         // All Articles is the default, so no need to insert it either
4149                         if ($view_mode == "adaptive" || $view_mode == "all_articles")
4150                                 $view_mode = "";
4151                         else
4152                                 $view_mode = "&view-mode=$view_mode";
4153
4154                         print "
4155                                 <a href=\"#\"
4156                                         title=\"".__("View as RSS feed")."\"
4157                                         onclick=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">
4158                                         <img class=\"noborder\" style=\"vertical-align : middle\" src=\"images/feed-icon-12x12.png\"></a>";
4159
4160                         print "</div>";
4161
4162                 }
4163
4164         function outputFeedList($link, $special = true) {
4165
4166                 $feedlist = array();
4167
4168                 $enable_cats = get_pref($link, 'ENABLE_FEED_CATS');
4169
4170                 $feedlist['identifier'] = 'id';
4171                 $feedlist['label'] = 'name';
4172                 $feedlist['items'] = array();
4173
4174                 $owner_uid = $_SESSION["uid"];
4175
4176                 /* virtual feeds */
4177
4178                 if ($special) {
4179
4180                         if ($enable_cats) {
4181                                 $cat_hidden = get_pref($link, "_COLLAPSED_SPECIAL");
4182                                 $cat = feedlist_init_cat($link, -1, $cat_hidden);
4183                         } else {
4184                                 $cat['items'] = array();
4185                         }
4186
4187                         foreach (array(-4, -3, -1, -2, 0) as $i) {
4188                                 array_push($cat['items'], feedlist_init_feed($link, $i));
4189                         }
4190
4191                         if ($enable_cats) {
4192                                 array_push($feedlist['items'], $cat);
4193                         } else {
4194                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4195                         }
4196
4197                         $result = db_query($link, "SELECT * FROM
4198                                 ttrss_labels2 WHERE owner_uid = '$owner_uid' ORDER by caption");
4199
4200                         if (db_num_rows($result) > 0) {
4201
4202                                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
4203                                         $cat_hidden = get_pref($link, "_COLLAPSED_LABELS");
4204                                         $cat = feedlist_init_cat($link, -2, $cat_hidden);
4205                                 } else {
4206                                         $cat['items'] = array();
4207                                 }
4208
4209                                 while ($line = db_fetch_assoc($result)) {
4210
4211                                         $label_id = -$line['id'] - 11;
4212                                         $count = getFeedUnread($link, $label_id);
4213
4214                                         $feed = feedlist_init_feed($link, $label_id, false, $count);
4215
4216                                         $feed['fg_color'] = $line['fg_color'];
4217                                         $feed['bg_color'] = $line['bg_color'];
4218
4219                                         array_push($cat['items'], $feed);
4220                                 }
4221
4222                                 if ($enable_cats) {
4223                                         array_push($feedlist['items'], $cat);
4224                                 } else {
4225                                         $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4226                                 }
4227                         }
4228                 }
4229
4230 /*              if (get_pref($link, 'ENABLE_FEED_CATS')) {
4231                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4232                                 $order_by_qpart = "order_id,category,unread DESC,title";
4233                         } else {
4234                                 $order_by_qpart = "order_id,category,title";
4235                         }
4236                 } else {
4237                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4238                                 $order_by_qpart = "unread DESC,title";
4239                         } else {
4240                                 $order_by_qpart = "title";
4241                         }
4242                 } */
4243
4244                 /* real feeds */
4245
4246                 if ($enable_cats)
4247                         $order_by_qpart = "ttrss_feed_categories.order_id,category,
4248                                 ttrss_feeds.order_id,title";
4249                 else
4250                         $order_by_qpart = "title";
4251
4252                 $age_qpart = getMaxAgeSubquery();
4253
4254                 $query = "SELECT ttrss_feeds.id, ttrss_feeds.title,
4255                         ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated_noms,
4256                         cat_id,last_error,
4257                         ttrss_feed_categories.title AS category,
4258                         ttrss_feed_categories.collapsed,
4259                         value AS unread
4260                         FROM ttrss_feeds LEFT JOIN ttrss_feed_categories
4261                                 ON (ttrss_feed_categories.id = cat_id)
4262                         LEFT JOIN ttrss_counters_cache
4263                                 ON
4264                                         (ttrss_feeds.id = feed_id)
4265                         WHERE
4266                                 ttrss_feeds.owner_uid = '$owner_uid'
4267                         ORDER BY $order_by_qpart";
4268
4269                 $result = db_query($link, $query);
4270
4271                 $actid = $_REQUEST["actid"];
4272
4273                 if (db_num_rows($result) > 0) {
4274
4275                         $category = "";
4276
4277                         if (!$enable_cats)
4278                                 $cat['items'] = array();
4279                         else
4280                                 $cat = false;
4281
4282                         while ($line = db_fetch_assoc($result)) {
4283
4284                                 $feed = htmlspecialchars(trim($line["title"]));
4285
4286                                 if (!$feed) $feed = "[Untitled]";
4287
4288                                 $feed_id = $line["id"];
4289                                 $unread = $line["unread"];
4290
4291                                 $cat_id = $line["cat_id"];
4292                                 $tmp_category = $line["category"];
4293                                 if (!$tmp_category) $tmp_category = __("Uncategorized");
4294
4295                                 if ($category != $tmp_category && $enable_cats) {
4296
4297                                         $category = $tmp_category;
4298
4299                                         $collapsed = sql_bool_to_bool($line["collapsed"]);
4300
4301                                         // workaround for NULL category
4302                                         if ($category == __("Uncategorized")) {
4303                                                 $collapsed = get_pref($link, "_COLLAPSED_UNCAT");
4304                                         }
4305
4306                                         if ($cat) array_push($feedlist['items'], $cat);
4307
4308                                         $cat = feedlist_init_cat($link, $cat_id, $collapsed);
4309                                 }
4310
4311                                 $updated = make_local_datetime($link, $line["updated_noms"], false);
4312
4313                                 array_push($cat['items'], feedlist_init_feed($link, $feed_id,
4314                                         $feed, $unread, $line['last_error'], $updated));
4315                         }
4316
4317                         if ($enable_cats) {
4318                                 array_push($feedlist['items'], $cat);
4319                         } else {
4320                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4321                         }
4322
4323                 }
4324
4325                 return $feedlist;
4326         }
4327
4328         function get_article_tags($link, $id, $owner_uid = 0) {
4329
4330                 global $memcache;
4331
4332                 $a_id = db_escape_string($id);
4333
4334                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4335
4336                 $query = "SELECT DISTINCT tag_name,
4337                         owner_uid as owner FROM
4338                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
4339                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
4340
4341                 $obj_id = md5("TAGS:$owner_uid:$id");
4342                 $tags = array();
4343
4344                 if ($memcache && $obj = $memcache->get($obj_id)) {
4345                         $tags = $obj;
4346                 } else {
4347                         /* check cache first */
4348
4349                         $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
4350                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4351
4352                         $tag_cache = db_fetch_result($result, 0, "tag_cache");
4353
4354                         if ($tag_cache) {
4355                                 $tags = explode(",", $tag_cache);
4356                         } else {
4357
4358                                 /* do it the hard way */
4359
4360                                 $tmp_result = db_query($link, $query);
4361
4362                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
4363                                         array_push($tags, $tmp_line["tag_name"]);
4364                                 }
4365
4366                                 /* update the cache */
4367
4368                                 $tags_str = db_escape_string(join(",", $tags));
4369
4370                                 db_query($link, "UPDATE ttrss_user_entries
4371                                         SET tag_cache = '$tags_str' WHERE ref_id = '$id'
4372                                         AND owner_uid = " . $_SESSION["uid"]);
4373                         }
4374
4375                         if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);
4376                 }
4377
4378                 return $tags;
4379         }
4380
4381         function trim_value(&$value) {
4382                 $value = trim($value);
4383         }
4384
4385         function trim_array($array) {
4386                 $tmp = $array;
4387                 array_walk($tmp, 'trim_value');
4388                 return $tmp;
4389         }
4390
4391         function tag_is_valid($tag) {
4392                 if ($tag == '') return false;
4393                 if (preg_match("/^[0-9]*$/", $tag)) return false;
4394                 if (mb_strlen($tag) > 250) return false;
4395
4396                 if (function_exists('iconv')) {
4397                         $tag = iconv("utf-8", "utf-8", $tag);
4398                 }
4399
4400                 if (!$tag) return false;
4401
4402                 return true;
4403         }
4404
4405         function render_login_form($link, $mobile = 0) {
4406                 switch ($mobile) {
4407                 case 0:
4408                         require_once "login_form.php";
4409                         break;
4410                 case 1:
4411                         require_once "mobile/login_form.php";
4412                         break;
4413                 case 2:
4414                         require_once "mobile/classic/login_form.php";
4415                 }
4416         }
4417
4418         // from http://developer.apple.com/internet/safari/faq.html
4419         function no_cache_incantation() {
4420                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
4421                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
4422                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
4423                 header("Cache-Control: post-check=0, pre-check=0", false);
4424                 header("Pragma: no-cache"); // HTTP/1.0
4425         }
4426
4427         function format_warning($msg, $id = "") {
4428                 global $link;
4429                 return "<div class=\"warning\" id=\"$id\">
4430                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4431         }
4432
4433         function format_notice($msg) {
4434                 global $link;
4435                 return "<div class=\"notice\" id=\"$id\">
4436                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
4437         }
4438
4439         function format_error($msg) {
4440                 global $link;
4441                 return "<div class=\"error\" id=\"$id\">
4442                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4443         }
4444
4445         function print_notice($msg) {
4446                 return print format_notice($msg);
4447         }
4448
4449         function print_warning($msg) {
4450                 return print format_warning($msg);
4451         }
4452
4453         function print_error($msg) {
4454                 return print format_error($msg);
4455         }
4456
4457
4458         function T_sprintf() {
4459                 $args = func_get_args();
4460                 return vsprintf(__(array_shift($args)), $args);
4461         }
4462
4463         function format_inline_player($link, $url, $ctype) {
4464
4465                 $entry = "";
4466
4467                 if ($ctype == "audio/mpeg") {
4468
4469                         $entry .= "<object type=\"application/x-shockwave-flash\"
4470                                 data=\"extras/button/musicplayer.swf?song_url=$url\"
4471                                 width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
4472                                         <param name=\"movie\" value=\"extras/button/musicplayer.swf?song_url=$url\" /> </object>";
4473                 }
4474
4475                 return $entry;
4476         }
4477
4478         function outputArticleXML($link, $id, $feed_id, $mark_as_read = true,
4479                 $zoom_mode = false) {
4480
4481                 /* we can figure out feed_id from article id anyway, why do we
4482                  * pass feed_id here? let's ignore the argument :( */
4483
4484                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4485                         WHERE ref_id = '$id'");
4486
4487                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4488
4489                 if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
4490
4491                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
4492                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
4493
4494                 if (db_num_rows($result) == 1) {
4495                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4496                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
4497                 } else {
4498                         $rtl_content = false;
4499                         $always_display_enclosures = false;
4500                 }
4501
4502                 if ($rtl_content) {
4503                         $rtl_tag = "dir=\"RTL\"";
4504                         $rtl_class = "RTL";
4505                 } else {
4506                         $rtl_tag = "";
4507                         $rtl_class = "";
4508                 }
4509
4510                 if ($mark_as_read) {
4511                         $result = db_query($link, "UPDATE ttrss_user_entries
4512                                 SET unread = false,last_read = NOW()
4513                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4514
4515                         ccache_update($link, $feed_id, $_SESSION["uid"]);
4516                 }
4517
4518                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
4519                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
4520                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
4521                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
4522                         num_comments,
4523                         author,
4524                         orig_feed_id,
4525                         note
4526                         FROM ttrss_entries,ttrss_user_entries
4527                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
4528
4529                 if ($result) {
4530
4531                         $line = db_fetch_assoc($result);
4532
4533                         if ($line["icon_url"]) {
4534                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
4535                         } else {
4536                                 $feed_icon = "&nbsp;";
4537                         }
4538
4539                         $feed_site_url = $line['site_url'];
4540
4541                         $num_comments = $line["num_comments"];
4542                         $entry_comments = "";
4543
4544                         if ($num_comments > 0) {
4545                                 if ($line["comments"]) {
4546                                         $comments_url = $line["comments"];
4547                                 } else {
4548                                         $comments_url = $line["link"];
4549                                 }
4550                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
4551                         } else {
4552                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
4553                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
4554                                 }
4555                         }
4556
4557                         if ($zoom_mode) {
4558                                 header("Content-Type: text/html");
4559                                 print "<html><head>
4560                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
4561                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
4562                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
4563                                         </head><body>";
4564                         }
4565
4566                         print "<div id=\"PTITLE-$id\" style=\"display : none\">" .
4567                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
4568
4569                         print "<div class=\"postReply\" id=\"POST-$id\">";
4570
4571                         /* print "<div dojoType=\"dijit.Menu\" style=\"display: none;\"
4572                                 targetNodeIds=\"POSTHDR-$id\">";
4573                         print "<div onclick=\"postOpenInNewTab(event, $id)\"
4574                                 dojoType=\"dijit.MenuItem\">".__('View in a new tab')."</div>";
4575                         print "<div dojoType=\"dijit.MenuSeparator\"></div>";
4576                         print "<div onclick=\"openArticleInNewWindow($id)\"
4577                                 dojoType=\"dijit.MenuItem\">".__('Open original article')."</div>";
4578                         print "</div>"; */
4579
4580                         print "<div onclick=\"return postClicked(event, $id)\"
4581                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
4582
4583                         $entry_author = $line["author"];
4584
4585                         if ($entry_author) {
4586                                 $entry_author = __(" - ") . $entry_author;
4587                         }
4588
4589                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
4590                                 false, true);
4591
4592                         print "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
4593
4594                         if ($line["link"]) {
4595                                 print "<div clear='both'><a target='_blank'
4596                                         title=\"".htmlspecialchars($line['title'])."\"
4597                                         href=\"" .
4598                                         $line["link"] . "\">" .
4599                                         truncate_string($line["title"], 100) .
4600                                         "<span class='author'>$entry_author</span></a></div>";
4601                         } else {
4602                                 print "<div clear='both'>" . $line["title"] . "$entry_author</div>";
4603                         }
4604
4605                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
4606
4607                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
4608
4609                         print "<div style='float : right'>
4610                                 <img src='".theme_image($link, 'images/tag.png')."'
4611                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
4612
4613                         if (!$zoom_mode) {
4614                                 print "<span id=\"ATSTR-$id\">$tags_str</span>
4615                                         <a title=\"".__('Edit tags for this article')."\"
4616                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
4617
4618                                 print "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
4619                                                 class='tagsPic' style=\"cursor : pointer\"
4620                                                 onclick=\"postOpenInNewTab(event, $id)\"
4621                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
4622
4623                                 $note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
4624
4625                                 print "<img src=\"".theme_image($link, 'images/art-pub-note.png')."\"
4626                                                 class='tagsPic' style=\"cursor : pointer\"
4627                                                 onclick=\"publishWithNote($id, '$note_escaped')\"
4628                                                 alt='PubNote' title='".__('Publish article with a note')."'>";
4629
4630                                 if (DIGEST_ENABLE) {
4631                                         print "<img src=\"".theme_image($link, 'images/art-email.png')."\"
4632                                                 class='tagsPic' style=\"cursor : pointer\"
4633                                                 onclick=\"emailArticle($id)\"
4634                                                 alt='Zoom' title='".__('Forward by email')."'>";
4635                                 }
4636
4637                                 if (ENABLE_TWEET_BUTTON) {
4638                                         print "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
4639                                                         class='tagsPic' style=\"cursor : pointer\"
4640                                                         onclick=\"tweetArticle($id)\"
4641                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
4642                                 }
4643
4644                                 print "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
4645                                                 class='tagsPic' style=\"cursor : pointer\"
4646                                                 onclick=\"closeArticlePanel($id)\"
4647                                                 alt='Zoom' title='".__('Close this panel')."'>";
4648
4649                         } else {
4650                                 $tags_str = strip_tags($tags_str);
4651                                 print "<span id=\"ATSTR-$id\">$tags_str</span>";
4652                         }
4653                         print "</div>";
4654                         print "<div clear='both'>$entry_comments</div>";
4655
4656                         if ($line["orig_feed_id"]) {
4657
4658                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
4659                                         WHERE id = ".$line["orig_feed_id"]);
4660
4661                                 if (db_num_rows($tmp_result) != 0) {
4662
4663                                         print "<div clear='both'>";
4664                                         print __("Originally from:");
4665
4666                                         print "&nbsp;";
4667
4668                                         $tmp_line = db_fetch_assoc($tmp_result);
4669
4670                                         print "<a target='_blank'
4671                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
4672                                                 $tmp_line['title'] . "</a>";
4673
4674                                         print "&nbsp;";
4675
4676                                         print "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
4677                                         print "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
4678
4679                                         print "</div>";
4680                                 }
4681                         }
4682
4683                         print "</div>";
4684
4685                         print "<div class=\"postIcon\">" .
4686                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
4687                                 href=\"".htmlspecialchars($feed_site_url)."\">".
4688                                 $feed_icon . "</a></div>";
4689
4690                         print "<div class=\"postContent\">";
4691
4692                         $article_content = sanitize_rss($link, $line["content"], false, false,
4693                                 $feed_site_url);
4694
4695                         print "<div id=\"POSTNOTE-$id\">";
4696                                 if ($line['note']) {
4697                                         print format_article_note($id, $line['note']);
4698                                 }
4699                         print "</div>";
4700
4701                         print $article_content;
4702
4703                         print_article_enclosures($link, $id, $always_display_enclosures,
4704                                 $article_content);
4705
4706                         print "</div>";
4707
4708                         print "</div>";
4709
4710                 }
4711
4712                 if (!$zoom_mode) {
4713                         print "]]></article>";
4714                 } else {
4715                         print "
4716                                 <div style=\"text-align : center\">
4717                                 <button onclick=\"return window.close()\">".
4718                                         __("Close this window")."</button></div>";
4719                         print "</body></html>";
4720
4721                 }
4722
4723         }
4724
4725         function outputHeadlinesList($link, $feed, $subop, $view_mode, $limit, $cat_view,
4726                                         $next_unread_feed, $offset, $vgr_last_feed = false,
4727                                         $override_order = false) {
4728
4729                 $disable_cache = false;
4730
4731                 $timing_info = getmicrotime();
4732
4733                 $topmost_article_ids = array();
4734
4735                 if (!$offset) {
4736                         $offset = 0;
4737                 }
4738
4739                 if ($subop == "undefined") $subop = "";
4740
4741                 $subop_split = split(":", $subop);
4742
4743                 if ($subop == "CatchupSelected") {
4744                         $ids = split(",", db_escape_string($_REQUEST["ids"]));
4745                         $cmode = sprintf("%d", $_REQUEST["cmode"]);
4746
4747                         catchupArticlesById($link, $ids, $cmode);
4748                 }
4749
4750                 if ($subop == "MarkAllRead")  {
4751                         catchup_feed($link, $feed, $cat_view);
4752
4753                         if (get_pref($link, 'ON_CATCHUP_SHOW_NEXT_FEED')) {
4754                                 if ($next_unread_feed) {
4755                                         $feed = $next_unread_feed;
4756                                 }
4757                         }
4758                 }
4759
4760                 if ($subop_split[0] == "MarkAllReadGR")  {
4761                         catchup_feed($link, $subop_split[1], false);
4762                 }
4763
4764                 // FIXME: might break tag display?
4765
4766                 if ($feed > 0 && !$cat_view) {
4767                         $result = db_query($link,
4768                                 "SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");
4769
4770                         if (db_num_rows($result) == 0) {
4771                                 print "<div align='center'>".__('Feed not found.')."</div>";
4772                                 return;
4773                         }
4774                 }
4775
4776                 if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
4777
4778                         $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
4779                                 WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
4780
4781                         if (db_num_rows($result) == 1) {
4782                                 $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4783                         } else {
4784                                 $rtl_content = false;
4785                         }
4786
4787                         if ($rtl_content) {
4788                                 $rtl_tag = "dir=\"RTL\"";
4789                         } else {
4790                                 $rtl_tag = "";
4791                         }
4792                 } else {
4793                         $rtl_tag = "";
4794                         $rtl_content = false;
4795                 }
4796
4797                 /// START /////////////////////////////////////////////////////////////////////////////////
4798
4799                 @$search = db_escape_string($_REQUEST["query"]);
4800
4801                 if ($search) {
4802                         $disable_cache = true;
4803                 }
4804
4805                 @$search_mode = db_escape_string($_REQUEST["search_mode"]);
4806                 @$match_on = db_escape_string($_REQUEST["match_on"]);
4807
4808                 if (!$match_on) {
4809                         $match_on = "both";
4810                 }
4811
4812                 $real_offset = $offset * $limit;
4813
4814                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H0", $timing_info);
4815
4816                 $qfh_ret = queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view,
4817                         $search, $search_mode, $match_on, $override_order, $real_offset);
4818
4819                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H1", $timing_info);
4820
4821                 $result = $qfh_ret[0];
4822                 $feed_title = $qfh_ret[1];
4823                 $feed_site_url = $qfh_ret[2];
4824                 $last_error = $qfh_ret[3];
4825
4826                 $vgroup_last_feed = $vgr_last_feed;
4827
4828 /*              if ($feed == -2) {
4829                         $feed_site_url = article_publish_url($link);
4830                 } */
4831
4832                 /// STOP //////////////////////////////////////////////////////////////////////////////////
4833
4834                 print "<toolbar><![CDATA[";
4835
4836                 if (!$offset) {
4837 //                      print "<div id=\"headlinesContainer\" $rtl_tag>";
4838
4839                         if (!$result) {
4840                                 print "<div align='center'>".__("Could not display feed (query failed). Please check label match syntax or local configuration.")."</div>";
4841                                 return;
4842                         }
4843
4844                         if (db_num_rows($result) > 0) {
4845                                 print_headline_subtoolbar($link, $feed_site_url, $feed_title,
4846                                         $feed, $cat_view, $search, $match_on, $search_mode, $view_mode,
4847                                         $last_error);
4848
4849 //                              print "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
4850
4851                         }
4852                 }
4853
4854                 print "]]></toolbar><content><![CDATA[";
4855
4856                 $headlines_count = db_num_rows($result);
4857
4858                 if (db_num_rows($result) > 0) {
4859
4860                         $lnum = $limit*$offset;
4861
4862                         $num_unread = 0;
4863                         $cur_feed_title = '';
4864
4865                         $fresh_intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE") * 60 * 60;
4866
4867                         while ($line = db_fetch_assoc($result)) {
4868
4869                                 $class = ($lnum % 2) ? "even" : "odd";
4870
4871                                 $id = $line["id"];
4872                                 $feed_id = $line["feed_id"];
4873
4874                                 $labels = get_article_labels($link, $id);
4875
4876                                 $labels_str = "<span id=\"HLLCTR-$id\">";
4877                                 $labels_str .= format_article_labels($labels, $id);
4878                                 $labels_str .= "</span>";
4879
4880                                 if (count($topmost_article_ids) < 3) {
4881                                         array_push($topmost_article_ids, $id);
4882                                 }
4883
4884                                 if ($line["last_read"] == "" && !sql_bool_to_bool($line["unread"])) {
4885
4886                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
4887                                                 theme_image($link, 'images/updated.png')."\"
4888                                                 alt=\"Updated\">";
4889                                 } else {
4890                                         $update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\"
4891                                                 alt=\"Updated\">";
4892                                 }
4893
4894                                 if (sql_bool_to_bool($line["unread"]) &&
4895                                         time() - strtotime($line["updated_noms"]) < $fresh_intl) {
4896
4897                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
4898                                                 theme_image($link, 'images/fresh_sign.png')."\" alt=\"Fresh\">";
4899                                 }
4900
4901                                 if ($line["unread"] == "t" || $line["unread"] == "1") {
4902                                         $class .= " Unread";
4903                                         ++$num_unread;
4904                                         $is_unread = true;
4905                                 } else {
4906                                         $is_unread = false;
4907                                 }
4908
4909                                 if ($line["marked"] == "t" || $line["marked"] == "1") {
4910                                         $marked_pic = "<img id=\"FMPIC-$id\"
4911                                                 src=\"".theme_image($link, 'images/mark_set.png')."\"
4912                                                 class=\"markedPic\" alt=\"Unstar article\"
4913                                                 onclick='javascript:tMark($id)'>";
4914                                 } else {
4915                                         $marked_pic = "<img id=\"FMPIC-$id\"
4916                                                 src=\"".theme_image($link, 'images/mark_unset.png')."\"
4917                                                 class=\"markedPic\" alt=\"Star article\"
4918                                                 onclick='javascript:tMark($id)'>";
4919                                 }
4920
4921                                 if ($line["published"] == "t" || $line["published"] == "1") {
4922                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
4923                                                 'images/pub_set.png')."\"
4924                                                 class=\"markedPic\"
4925                                                 alt=\"Unpublish article\" onclick='javascript:tPub($id)'>";
4926                                 } else {
4927                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
4928                                                 'images/pub_unset.png')."\"
4929                                                 class=\"markedPic\"
4930                                                 alt=\"Publish article\" onclick='javascript:tPub($id)'>";
4931                                 }
4932
4933 #                               $content_link = "<a target=\"_blank\" href=\"".$line["link"]."\">" .
4934 #                                       $line["title"] . "</a>";
4935
4936 #                               $content_link = "<a
4937 #                                       href=\"" . htmlspecialchars($line["link"]) . "\"
4938 #                                       onclick=\"view($id,$feed_id);\">" .
4939 #                                       $line["title"] . "</a>";
4940
4941 #                               $content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
4942 #                                       $line["title"] . "</a>";
4943
4944                                 $updated_fmt = make_local_datetime($link, $line["updated_noms"], false);
4945
4946                                 if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
4947                                         $content_preview = truncate_string(strip_tags($line["content_preview"]),
4948                                                 100);
4949                                 }
4950
4951                                 $score = $line["score"];
4952
4953                                 $score_pic = theme_image($link,
4954                                         "images/" . get_score_pic($score));
4955
4956 /*                              $score_title = __("(Click to change)");
4957                                 $score_pic = "<img class='hlScorePic' src=\"images/$score_pic\"
4958                                         onclick=\"adjustArticleScore($id, $score)\" title=\"$score $score_title\">"; */
4959
4960                                 $score_pic = "<img class='hlScorePic' src=\"$score_pic\"
4961                                         title=\"$score\">";
4962
4963                                 if ($score > 500) {
4964                                         $hlc_suffix = "H";
4965                                 } else if ($score < -100) {
4966                                         $hlc_suffix = "L";
4967                                 } else {
4968                                         $hlc_suffix = "";
4969                                 }
4970
4971                                 $entry_author = $line["author"];
4972
4973                                 if ($entry_author) {
4974                                         $entry_author = " - $entry_author";
4975                                 }
4976
4977                                 $has_feed_icon = feed_has_icon($feed_id);
4978
4979                                 if ($has_feed_icon) {
4980                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
4981                                 } else {
4982                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/feed-icon-12x12.png\" alt=\"\">";
4983                                 }
4984
4985                                 if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
4986
4987                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED')) {
4988                                                 if ($feed_id != $vgroup_last_feed && $line["feed_title"]) {
4989
4990                                                         $cur_feed_title = $line["feed_title"];
4991                                                         $vgroup_last_feed = $feed_id;
4992
4993                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
4994
4995                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
4996
4997                                                         print "<div class='cdmFeedTitle'>".
4998                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
4999                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5000                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5001
5002                                                 }
5003                                         }
5004
5005                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5006                                                 onmouseout='postMouseOut($id)'";
5007
5008                                         print "<div class='$class' id='RROW-$id' $mouseover_attrs>";
5009
5010                                         print "<div class='hlUpdPic'>$update_pic</div>";
5011
5012                                         print "<div class='hlLeft'>";
5013
5014                                         print "<input type=\"checkbox\" onclick=\"tSR(this)\"
5015                                                         id=\"RCHK-$id\">";
5016
5017                                         print "$marked_pic";
5018                                         print "$published_pic";
5019
5020                                         print "</div>";
5021
5022                                         print "<div onclick='return hlClicked(event, $id)'
5023                                                 class=\"hlTitle\"><span class='hlContent$hlc_suffix'>";
5024                                         print "<a id=\"RTITLE-$id\"
5025                                                 href=\"" . htmlspecialchars($line["link"]) . "\"
5026                                                 onclick=\"return false;\">" .
5027                                                 $line["title"];
5028
5029                                         if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5030                                                 if ($content_preview) {
5031                                                         print "<span class=\"contentPreview\"> - $content_preview</span>";
5032                                                 }
5033                                         }
5034
5035                                         print "</a></span>";
5036
5037                                         print $labels_str;
5038
5039                                         /* if (!get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5040                                                 if (@$line["feed_title"]) {
5041                                                         print "<span class=\"hlFeed\">
5042                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5043                                                                 $line["feed_title"]."</a>)
5044                                                         </span>";
5045                                                 }
5046                                         } */
5047
5048                                         print "</div>";
5049
5050
5051
5052                                         print "<div class=\"hlRight\">";
5053                                         print "<span class=\"hlUpdated\">$updated_fmt</span>";
5054                                         print $score_pic;
5055
5056                                         if ($line["feed_title"] && !get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5057
5058                                                 print "<span onclick=\"viewfeed($feed_id)\"
5059                                                         title=\"".htmlspecialchars($line['feed_title'])."\">
5060                                                         $feed_icon_img<span>";
5061                                         }
5062
5063                                         print "</div>";
5064                                         print "</div>";
5065
5066                                 } else {
5067
5068                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED') && $line["feed_title"]) {
5069                                                 if ($feed_id != $vgroup_last_feed) {
5070
5071                                                         $cur_feed_title = $line["feed_title"];
5072                                                         $vgroup_last_feed = $feed_id;
5073
5074                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5075
5076                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5077
5078                                                         $has_feed_icon = feed_has_icon($feed_id);
5079
5080                                                         if ($has_feed_icon) {
5081                                                                 $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5082                                                         } else {
5083                                                                 //$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
5084                                                         }
5085
5086                                                         print "<div class='cdmFeedTitle'>".
5087                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5088                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5089                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5090                                                 }
5091                                         }
5092
5093                                         $expand_cdm = get_pref($link, 'CDM_EXPANDED');
5094
5095                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5096                                                 onmouseout='postMouseOut($id)'";
5097
5098                                         print "<div class=\"$class\"
5099                                                 id=\"RROW-$id\" $mouseover_attrs'>";
5100
5101                                         print "<div class=\"cdmHeader\">";
5102
5103                                         print "<div style='float : right'>";
5104                                         print "<span class='updated'>$updated_fmt</span>";
5105                                         print "$score_pic";
5106
5107                                         if (!get_pref($link, "VFEED_GROUP_BY_FEED") && $line["feed_title"]) {
5108                                                 print "<span style=\"cursor : pointer\"
5109                                                         title=\"".htmlspecialchars($line["feed_title"])."\"
5110                                                         onclick=\"viewfeed($feed_id)\">$feed_icon_img</span>";
5111                                         }
5112                                         print "<div class=\"updPic\">$update_pic</div>";
5113
5114                                         print "</div>";
5115
5116                                         print "<input type=\"checkbox\" onclick=\"toggleSelectRowById(this,
5117                                                         'RROW-$id')\" id=\"RCHK-$id\"/>";
5118
5119                                         print "$marked_pic";
5120                                         print "$published_pic";
5121
5122                                         print "<span id=\"RTITLE-$id\"
5123                                                 onclick=\"return cdmClicked(event, $id);\"
5124                                                 class=\"titleWrap$hlc_suffix\">
5125                                                 <a class=\"title\"
5126                                                 title=\"".htmlspecialchars($line['title'])."\"
5127                                                 target=\"_blank\" href=\"".
5128                                                 htmlspecialchars($line["link"])."\">".
5129                                                 truncate_string($line["title"], 100) .
5130                                                 " $entry_author</a>";
5131
5132                                         print $labels_str;
5133
5134                                         if (!$expand_cdm)
5135                                                 $content_hidden = "style=\"display : none\"";
5136                                         else
5137                                                 $excerpt_hidden = "style=\"display : none\"";
5138
5139                                         print "<span $excerpt_hidden
5140                                                 id=\"CEXC-$id\" class=\"cdmExcerpt\"> - $content_preview</span>";
5141
5142                                         print "</span>";
5143
5144                                         print "</div>";
5145
5146                                         print "<div class=\"cdmContent\" $content_hidden
5147                                                 onclick=\"return cdmClicked(event, $id);\"
5148                                                 id=\"CICD-$id\">";
5149
5150                                         print "<div class=\"cdmContentInner\">";
5151
5152                         if ($line["orig_feed_id"]) {
5153
5154                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
5155                                         WHERE id = ".$line["orig_feed_id"]);
5156
5157                                                 if (db_num_rows($tmp_result) != 0) {
5158
5159                                                         print "<div clear='both'>";
5160                                                         print __("Originally from:");
5161
5162                                                         print "&nbsp;";
5163
5164                                                         $tmp_line = db_fetch_assoc($tmp_result);
5165
5166                                                         print "<a target='_blank'
5167                                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
5168                                                                 $tmp_line['title'] . "</a>";
5169
5170                                                         print "&nbsp;";
5171
5172                                                         print "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
5173                                                         print "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
5174
5175                                                         print "</div>";
5176                                                 }
5177                                         }
5178
5179                                         // FIXME: make this less of a hack
5180
5181                                         $feed_site_url = false;
5182
5183                                         if ($line["feed_id"]) {
5184                                                 $tmp_result = db_query($link, "SELECT site_url FROM ttrss_feeds
5185                                                         WHERE id = " . $line["feed_id"]);
5186
5187                                                 if (db_num_rows($tmp_result) == 1) {
5188                                                         $feed_site_url = db_fetch_result($tmp_result, 0, "site_url");
5189                                                 }
5190                                         }
5191
5192                                         if ($expand_cdm) {
5193                                                 $article_content = sanitize_rss($link, $line["content_preview"],
5194                                                         false, false, $feed_site_url);
5195
5196                                                 if (!$article_content) $article_content = "&nbsp;";
5197                                         } else {
5198                                                 $article_content = '';
5199                                         }
5200
5201                                         print "<div id=\"POSTNOTE-$id\">";
5202                                         if ($line['note']) {
5203                                                 print format_article_note($id, $line['note']);
5204                                         }
5205                                         print "</div>";
5206
5207                                         print "<span id=\"CWRAP-$id\">$article_content</span>";
5208
5209                                         $tmp_result = db_query($link, "SELECT always_display_enclosures FROM
5210                                                 ttrss_feeds WHERE id = ".
5211                                                 (($line['feed_id'] == null) ? $line['orig_feed_id'] :
5212                                                                 $line['feed_id'])." AND owner_uid = ".$_SESSION["uid"]);
5213
5214                                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($tmp_result,
5215                                                 0, "always_display_enclosures"));
5216
5217                                         print_article_enclosures($link, $id, $always_display_enclosures,
5218                                                 $article_content);
5219
5220                                         print "</div>";
5221
5222                                         print "<div class=\"cdmFooter\">";
5223
5224                                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
5225
5226                                         print "<img src='".theme_image($link,
5227                                                         'images/tag.png')."' alt='Tags' title='Tags'>
5228                                                 <span id=\"ATSTR-$id\">$tags_str</span>
5229                                                 <a title=\"".__('Edit tags for this article')."\"
5230                                                 href=\"#\" onclick=\"editArticleTags($id, $feed_id, true)\">(+)</a>";
5231
5232                                         print "<div style=\"float : right\">";
5233
5234                                         print "<img src=\"images/art-zoom.png\"
5235                                                 onclick=\"zoomToArticle(event, $id)\"
5236                                                 style=\"cursor : pointer\"
5237                                                 alt='Zoom'
5238                                                 title='".__('Open article in new tab')."'>";
5239
5240                                         $note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
5241
5242                                         print "<img src=\"images/art-pub-note.png\"
5243                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5244                                                 onclick=\"publishWithNote($id, '$note_escaped')\"
5245                                                 alt='PubNote' title='".__('Publish article with a note')."'>";
5246
5247                                         if (DIGEST_ENABLE) {
5248                                                 print "<img src=\"".theme_image($link, 'images/art-email.png')."\"
5249                                                         style=\"cursor : pointer\"
5250                                                         onclick=\"emailArticle($id)\"
5251                                                         alt='Zoom' title='".__('Forward by email')."'>";
5252                                         }
5253
5254                                         if (ENABLE_TWEET_BUTTON) {
5255                                                 print "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
5256                                                         class='tagsPic' style=\"cursor : pointer\"
5257                                                         onclick=\"tweetArticle($id)\"
5258                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
5259                                         }
5260
5261                                         print "<img src=\"images/digest_checkbox.png\"
5262                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5263                                                 onclick=\"dismissArticle($id)\"
5264                                                 alt='Dismiss' title='".__('Dismiss article')."'>";
5265
5266                                         print "</div>";
5267                                         print "</div>";
5268
5269                                         print "</div>";
5270
5271                                         print "</div>";
5272
5273                                 }
5274
5275                                 ++$lnum;
5276                         }
5277
5278                 } else {
5279                         $message = "";
5280
5281                         switch ($view_mode) {
5282                                 case "unread":
5283                                         $message = __("No unread articles found to display.");
5284                                         break;
5285                                 case "updated":
5286                                         $message = __("No updated articles found to display.");
5287                                         break;
5288                                 case "marked":
5289                                         $message = __("No starred articles found to display.");
5290                                         break;
5291                                 default:
5292                                         if ($feed < -10) {
5293                                                 $message = __("No articles found to display. You can assign articles to labels manually (see the Actions menu above) or use a filter.");
5294                                         } else {
5295                                                 $message = __("No articles found to display.");
5296                                         }
5297                         }
5298
5299                         if (!$offset && $message) {
5300                                 print "<div class='whiteBox'>$message";
5301
5302                                 print "<p class=\"small\"><span class=\"insensitive\">";
5303
5304                                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
5305                                         WHERE owner_uid = " . $_SESSION['uid']);
5306
5307                                 $last_updated = db_fetch_result($result, 0, "last_updated");
5308                                 $last_updated = make_local_datetime($link, $last_updated, false);
5309
5310                                 printf(__("Feeds last updated at %s"), $last_updated);
5311
5312                                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
5313                                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
5314
5315                                 $num_errors = db_fetch_result($result, 0, "num_errors");
5316
5317                                 if ($num_errors > 0) {
5318                                         print "<br/>";
5319                                         print "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
5320                                                 __('Some feeds have update errors (click for details)')."</a>";
5321                                 }
5322                                 print "</span></p></div>";
5323                         }
5324                 }
5325
5326 #               if (!$offset) {
5327 #                       if ($headlines_count > 0) print "</div>";
5328 #                       print "</div>";
5329 #               }
5330
5331                 print "]]></content>";
5332
5333                 return array($topmost_article_ids, $headlines_count, $feed, $disable_cache, $vgroup_last_feed);
5334         }
5335
5336 // from here: http://www.roscripts.com/Create_tag_cloud-71.html
5337
5338         function printTagCloud($link) {
5339
5340                 $query = "SELECT tag_name, COUNT(post_int_id) AS count
5341                         FROM ttrss_tags WHERE owner_uid = ".$_SESSION["uid"]."
5342                         GROUP BY tag_name ORDER BY count DESC LIMIT 50";
5343
5344                 $result = db_query($link, $query);
5345
5346                 $tags = array();
5347
5348                 while ($line = db_fetch_assoc($result)) {
5349                         $tags[$line["tag_name"]] = $line["count"];
5350                 }
5351
5352                 ksort($tags);
5353
5354                 $max_size = 32; // max font size in pixels
5355                 $min_size = 11; // min font size in pixels
5356
5357                 // largest and smallest array values
5358                 $max_qty = max(array_values($tags));
5359                 $min_qty = min(array_values($tags));
5360
5361                 // find the range of values
5362                 $spread = $max_qty - $min_qty;
5363                 if ($spread == 0) { // we don't want to divide by zero
5364                                 $spread = 1;
5365                 }
5366
5367                 // set the font-size increment
5368                 $step = ($max_size - $min_size) / ($spread);
5369
5370                 // loop through the tag array
5371                 foreach ($tags as $key => $value) {
5372                         // calculate font-size
5373                         // find the $value in excess of $min_qty
5374                         // multiply by the font-size increment ($size)
5375                         // and add the $min_size set above
5376                         $size = round($min_size + (($value - $min_qty) * $step));
5377
5378                         $key_escaped = str_replace("'", "\\'", $key);
5379
5380                         echo "<a href=\"javascript:viewfeed('$key_escaped') \" style=\"font-size: " .
5381                                 $size . "px\" title=\"$value articles tagged with " .
5382                                 $key . '">' . $key . '</a> ';
5383                 }
5384         }
5385
5386         function print_checkpoint($n, $s) {
5387                 $ts = getmicrotime();
5388                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
5389                 return $ts;
5390         }
5391
5392         function sanitize_tag($tag) {
5393                 $tag = trim($tag);
5394
5395                 $tag = mb_strtolower($tag, 'utf-8');
5396
5397                 $tag = preg_replace('/[\"\+\>\<]/', "", $tag);
5398
5399 //              $tag = str_replace('"', "", $tag);
5400 //              $tag = str_replace("+", " ", $tag);
5401                 $tag = str_replace("technorati tag: ", "", $tag);
5402
5403                 return $tag;
5404         }
5405
5406         function get_self_url_prefix() {
5407
5408                 $url_path = "";
5409
5410                 if ($_SERVER['HTTPS'] != "on") {
5411                         $url_path = "http://";
5412                 } else {
5413                         $url_path = "https://";
5414                 }
5415
5416                 $url_path .= $_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']);
5417
5418                 return $url_path;
5419
5420         }
5421         function opml_publish_url($link){
5422
5423                 $url_path = get_self_url_prefix();
5424                 $url_path .= "/opml.php?op=publish&key=" .
5425                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
5426
5427                 return $url_path;
5428         }
5429
5430         /**
5431          * Purge a feed contents, marked articles excepted.
5432          *
5433          * @param mixed $link The database connection.
5434          * @param integer $id The id of the feed to purge.
5435          * @return void
5436          */
5437         function clear_feed_articles($link, $id) {
5438
5439                 if ($id != 0) {
5440                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5441                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5442                 } else {
5443                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5444                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5445                 }
5446
5447                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
5448                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
5449
5450                 ccache_update($link, $id, $_SESSION['uid']);
5451         } // function clear_feed_articles
5452
5453         /**
5454          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
5455          *
5456          * @return string The Mozilla Firefox feed adding URL.
5457          */
5458         function add_feed_url() {
5459                 $url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
5460                 $url_path .= "?op=pref-feeds&quiet=1&subop=add&feed_url=%s";
5461                 return $url_path;
5462         } // function add_feed_url
5463
5464         /**
5465          * Encrypt a password in SHA1.
5466          *
5467          * @param string $pass The password to encrypt.
5468          * @param string $login A optionnal login.
5469          * @return string The encrypted password.
5470          */
5471         function encrypt_password($pass, $login = '') {
5472                 if ($login) {
5473                         return "SHA1X:" . sha1("$login:$pass");
5474                 } else {
5475                         return "SHA1:" . sha1($pass);
5476                 }
5477         } // function encrypt_password
5478
5479         /**
5480          * Update a feed batch.
5481          * Used by daemons to update n feeds by run.
5482          * Only update feed needing a update, and not being processed
5483          * by another process.
5484          *
5485          * @param mixed $link Database link
5486          * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
5487          * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
5488          * @param boolean $debug Set to false to disable debug output. Default to true.
5489          * @return void
5490          */
5491         function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
5492                 // Process all other feeds using last_updated and interval parameters
5493
5494                 // Test if the user has loggued in recently. If not, it does not update its feeds.
5495                 if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
5496                         if (DB_TYPE == "pgsql") {
5497                                 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
5498                         } else {
5499                                 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
5500                         }
5501                 } else {
5502                         $login_thresh_qpart = "";
5503                 }
5504
5505                 // Test if the feed need a update (update interval exceded).
5506                 if (DB_TYPE == "pgsql") {
5507                         $update_limit_qpart = "AND ((
5508                                         ttrss_feeds.update_interval = 0
5509                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
5510                                 ) OR (
5511                                         ttrss_feeds.update_interval > 0
5512                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
5513                                 ) OR ttrss_feeds.last_updated IS NULL)";
5514                 } else {
5515                         $update_limit_qpart = "AND ((
5516                                         ttrss_feeds.update_interval = 0
5517                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
5518                                 ) OR (
5519                                         ttrss_feeds.update_interval > 0
5520                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
5521                                 ) OR ttrss_feeds.last_updated IS NULL)";
5522                 }
5523
5524                 // Test if feed is currently being updated by another process.
5525                 if (DB_TYPE == "pgsql") {
5526                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
5527                 } else {
5528                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
5529                 }
5530
5531                 // Test if there is a limit to number of updated feeds
5532                 $query_limit = "";
5533                 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
5534
5535                 $random_qpart = sql_random_function();
5536
5537                 // We search for feed needing update.
5538                 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
5539                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
5540                                 ttrss_feeds.update_interval
5541                         FROM
5542                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
5543                         WHERE
5544                                 ttrss_feeds.owner_uid = ttrss_users.id
5545                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
5546                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
5547                                 $login_thresh_qpart $update_limit_qpart
5548                          $updstart_thresh_qpart
5549                         ORDER BY $random_qpart $query_limit");
5550
5551                 $user_prefs_cache = array();
5552
5553                 if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
5554
5555                 // Here is a little cache magic in order to minimize risk of double feed updates.
5556                 $feeds_to_update = array();
5557                 while ($line = db_fetch_assoc($result)) {
5558                         $feeds_to_update[$line['id']] = $line;
5559                 }
5560
5561                 // We update the feed last update started date before anything else.
5562                 // There is no lag due to feed contents downloads
5563                 // It prevent an other process to update the same feed.
5564                 $feed_ids = array_keys($feeds_to_update);
5565                 if($feed_ids) {
5566                         db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
5567                                 WHERE id IN (%s)", implode(',', $feed_ids)));
5568                 }
5569
5570                 // For each feed, we call the feed update function.
5571                 while ($line = array_pop($feeds_to_update)) {
5572
5573                         if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
5574
5575                         update_rss_feed($link, $line["id"], true);
5576
5577                         sleep(1); // prevent flood (FIXME make this an option?)
5578                 }
5579
5580                 // Send feed digests by email if needed.
5581                 if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
5582
5583         } // function update_daemon_common
5584
5585         function sanitize_article_content($text) {
5586                 # we don't support CDATA sections in articles, they break our own escaping
5587                 $text = preg_replace("/\[\[CDATA/", "", $text);
5588                 $text = preg_replace("/\]\]\>/", "", $text);
5589                 return $text;
5590         }
5591
5592         function load_filters($link, $feed, $owner_uid, $action_id = false) {
5593                 $filters = array();
5594
5595                 global $memcache;
5596
5597                 $obj_id = md5("FILTER:$feed:$owner_uid:$action_id");
5598
5599                 if ($memcache && $obj = $memcache->get($obj_id)) {
5600
5601                         return $obj;
5602
5603                 } else {
5604
5605                         if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
5606
5607                         $result = db_query($link, "SELECT reg_exp,
5608                                 ttrss_filter_types.name AS name,
5609                                 ttrss_filter_actions.name AS action,
5610                                 inverse,
5611                                 action_param,
5612                                 filter_param
5613                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
5614                                         enabled = true AND
5615                                         $ftype_query_part
5616                                         owner_uid = $owner_uid AND
5617                                         ttrss_filter_types.id = filter_type AND
5618                                         ttrss_filter_actions.id = action_id AND
5619                                         (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
5620
5621                         while ($line = db_fetch_assoc($result)) {
5622                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
5623                                         $filter["reg_exp"] = $line["reg_exp"];
5624                                         $filter["action"] = $line["action"];
5625                                         $filter["action_param"] = $line["action_param"];
5626                                         $filter["filter_param"] = $line["filter_param"];
5627                                         $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
5628
5629                                         array_push($filters[$line["name"]], $filter);
5630                                 }
5631
5632                         if ($memcache) $memcache->add($obj_id, $filters, 0, 3600*8);
5633
5634                         return $filters;
5635                 }
5636         }
5637
5638         function get_score_pic($score) {
5639                 if ($score > 100) {
5640                         return "score_high.png";
5641                 } else if ($score > 0) {
5642                         return "score_half_high.png";
5643                 } else if ($score < -100) {
5644                         return "score_low.png";
5645                 } else if ($score < 0) {
5646                         return "score_half_low.png";
5647                 } else {
5648                         return "score_neutral.png";
5649                 }
5650         }
5651
5652         function rounded_table_start($classname, $header = "&nbsp;") {
5653                 print "<table width='100%' class='$classname' cellspacing='0' cellpadding='0'>";
5654                 print "<tr><td class='c1'>&nbsp;</td><td class='top'>$header</td><td class='c2'>&nbsp;</td></tr>";
5655                 print "<tr><td class='left'>&nbsp;</td><td class='content'>";
5656         }
5657
5658         function rounded_table_end($footer = "&nbsp;") {
5659                 print "</td><td class='right'>&nbsp;</td></tr>";
5660                 print "<tr><td class='c4'>&nbsp;</td><td class='bottom'>$footer</td><td class='c3'>&nbsp;</td></tr>";
5661                 print "</table>";
5662         }
5663
5664         function feed_has_icon($id) {
5665                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
5666         }
5667
5668         function init_connection($link) {
5669                 if (DB_TYPE == "pgsql") {
5670                         pg_query($link, "set client_encoding = 'UTF-8'");
5671                         pg_set_client_encoding("UNICODE");
5672                         pg_query($link, "set datestyle = 'ISO, european'");
5673                         pg_query($link, "set TIME ZONE 0");
5674                 } else {
5675                         db_query($link, "SET time_zone = '+0:0'");
5676
5677                         if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
5678                                 db_query($link, "SET NAMES " . MYSQL_CHARSET);
5679         //                      db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
5680                         }
5681                 }
5682         }
5683
5684         function update_feedbrowser_cache($link) {
5685
5686                 $result = db_query($link, "SELECT feed_url,title, COUNT(id) AS subscribers
5687                         FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5688                                 WHERE tf.feed_url = ttrss_feeds.feed_url
5689                                 AND (private IS true OR feed_url LIKE '%:%@%/%'))
5690                                 GROUP BY feed_url, title ORDER BY subscribers DESC LIMIT 1000");
5691
5692                 db_query($link, "BEGIN");
5693
5694                 db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
5695
5696                 $count = 0;
5697
5698                 while ($line = db_fetch_assoc($result)) {
5699                         $subscribers = db_escape_string($line["subscribers"]);
5700                         $feed_url = db_escape_string($line["feed_url"]);
5701                         $title = db_escape_string($line["title"]);
5702
5703                         $tmp_result = db_query($link, "SELECT subscribers FROM
5704                                 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
5705
5706                         if (db_num_rows($tmp_result) == 0) {
5707
5708                                 db_query($link, "INSERT INTO ttrss_feedbrowser_cache
5709                                         (feed_url, title, subscribers) VALUES ('$feed_url',
5710                                                 '$title', '$subscribers')");
5711
5712                                 ++$count;
5713
5714                         }
5715
5716                 }
5717
5718                 db_query($link, "COMMIT");
5719
5720                 return $count;
5721
5722         }
5723
5724         function ccache_zero($link, $feed_id, $owner_uid) {
5725                 db_query($link, "UPDATE ttrss_counters_cache SET
5726                         value = 0, updated = NOW() WHERE
5727                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5728         }
5729
5730         function ccache_zero_all($link, $owner_uid) {
5731                 db_query($link, "UPDATE ttrss_counters_cache SET
5732                         value = 0 WHERE owner_uid = '$owner_uid'");
5733
5734                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
5735                         value = 0 WHERE owner_uid = '$owner_uid'");
5736         }
5737
5738         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
5739
5740                 if (!$is_cat) {
5741                         $table = "ttrss_counters_cache";
5742                 } else {
5743                         $table = "ttrss_cat_counters_cache";
5744                 }
5745
5746                 db_query($link, "DELETE FROM $table WHERE
5747                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5748
5749         }
5750
5751         function ccache_update_all($link, $owner_uid) {
5752
5753                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
5754
5755                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
5756                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5757
5758                         while ($line = db_fetch_assoc($result)) {
5759                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
5760                         }
5761
5762                         /* We have to manually include category 0 */
5763
5764                         ccache_update($link, 0, $owner_uid, true);
5765
5766                 } else {
5767                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
5768                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5769
5770                         while ($line = db_fetch_assoc($result)) {
5771                                 print ccache_update($link, $line["feed_id"], $owner_uid);
5772
5773                         }
5774
5775                 }
5776         }
5777
5778         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
5779                 $no_update = false) {
5780
5781                 if (!is_numeric($feed_id)) return;
5782
5783                 if (!$is_cat) {
5784                         $table = "ttrss_counters_cache";
5785                         if ($feed_id > 0) {
5786                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
5787                                         WHERE id = '$feed_id'");
5788                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
5789                         }
5790                 } else {
5791                         $table = "ttrss_cat_counters_cache";
5792                 }
5793
5794                 if (DB_TYPE == "pgsql") {
5795                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
5796                 } else if (DB_TYPE == "mysql") {
5797                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
5798                 }
5799
5800                 $result = db_query($link, "SELECT value FROM $table
5801                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
5802                         LIMIT 1");
5803
5804                 if (db_num_rows($result) == 1) {
5805                         return db_fetch_result($result, 0, "value");
5806                 } else {
5807                         if ($no_update) {
5808                                 return -1;
5809                         } else {
5810                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
5811                         }
5812                 }
5813
5814         }
5815
5816         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
5817                 $update_pcat = true) {
5818
5819                 if (!is_numeric($feed_id)) return;
5820
5821                 if (!$is_cat && $feed_id > 0) {
5822                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
5823                                 WHERE id = '$feed_id'");
5824                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
5825                 }
5826
5827                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
5828
5829                 /* When updating a label, all we need to do is recalculate feed counters
5830                  * because labels are not cached */
5831
5832                 if ($feed_id < 0) {
5833                         ccache_update_all($link, $owner_uid);
5834                         return;
5835                 }
5836
5837                 if (!$is_cat) {
5838                         $table = "ttrss_counters_cache";
5839                 } else {
5840                         $table = "ttrss_cat_counters_cache";
5841                 }
5842
5843                 if ($is_cat && $feed_id >= 0) {
5844                         if ($feed_id != 0) {
5845                                 $cat_qpart = "cat_id = '$feed_id'";
5846                         } else {
5847                                 $cat_qpart = "cat_id IS NULL";
5848                         }
5849
5850                         /* Recalculate counters for child feeds */
5851
5852                         $result = db_query($link, "SELECT id FROM ttrss_feeds
5853                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
5854
5855                         while ($line = db_fetch_assoc($result)) {
5856                                 ccache_update($link, $line["id"], $owner_uid, false, false);
5857                         }
5858
5859                         $result = db_query($link, "SELECT SUM(value) AS sv
5860                                 FROM ttrss_counters_cache, ttrss_feeds
5861                                 WHERE id = feed_id AND $cat_qpart AND
5862                                 ttrss_feeds.owner_uid = '$owner_uid'");
5863
5864                         $unread = (int) db_fetch_result($result, 0, "sv");
5865
5866                 } else {
5867                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
5868                 }
5869
5870                 db_query($link, "BEGIN");
5871
5872                 $result = db_query($link, "SELECT feed_id FROM $table
5873                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
5874
5875                 if (db_num_rows($result) == 1) {
5876                         db_query($link, "UPDATE $table SET
5877                                 value = '$unread', updated = NOW() WHERE
5878                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5879
5880                 } else {
5881                         db_query($link, "INSERT INTO $table
5882                                 (feed_id, value, owner_uid, updated)
5883                                 VALUES
5884                                 ($feed_id, $unread, $owner_uid, NOW())");
5885                 }
5886
5887                 db_query($link, "COMMIT");
5888
5889                 if ($feed_id > 0 && $prev_unread != $unread) {
5890
5891                         if (!$is_cat) {
5892
5893                                 /* Update parent category */
5894
5895                                 if ($update_pcat) {
5896
5897                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
5898                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
5899
5900                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
5901
5902                                         ccache_update($link, $cat_id, $owner_uid, true);
5903
5904                                 }
5905                         }
5906                 } else if ($feed_id < 0) {
5907                         ccache_update_all($link, $owner_uid);
5908                 }
5909
5910                 return $unread;
5911         }
5912
5913         function label_find_id($link, $label, $owner_uid) {
5914                 $result = db_query($link,
5915                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
5916                                 AND owner_uid = '$owner_uid' LIMIT 1");
5917
5918                 if (db_num_rows($result) == 1) {
5919                         return db_fetch_result($result, 0, "id");
5920                 } else {
5921                         return 0;
5922                 }
5923         }
5924
5925         function get_article_labels($link, $id) {
5926                 global $memcache;
5927
5928                 $obj_id = md5("LABELS:$id:" . $_SESSION["uid"]);
5929
5930                 $rv = array();
5931
5932                 if ($memcache && $obj = $memcache->get($obj_id)) {
5933                         return $obj;
5934                 } else {
5935
5936                         $result = db_query($link, "SELECT label_cache FROM
5937                                 ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
5938                                 $_SESSION["uid"]);
5939
5940                         $label_cache = db_fetch_result($result, 0, "label_cache");
5941
5942                         if ($label_cache) {
5943
5944                                 $label_cache = json_decode($label_cache, true);
5945
5946                                 if ($label_cache["no-labels"] == 1)
5947                                         return $rv;
5948                                 else
5949                                         return $label_cache;
5950                         }
5951
5952                         $result = db_query($link,
5953                                 "SELECT DISTINCT label_id,caption,fg_color,bg_color
5954                                         FROM ttrss_labels2, ttrss_user_labels2
5955                                 WHERE id = label_id
5956                                         AND article_id = '$id'
5957                                         AND owner_uid = ".$_SESSION["uid"] . "
5958                                 ORDER BY caption");
5959
5960                         while ($line = db_fetch_assoc($result)) {
5961                                 $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
5962                                         $line["bg_color"]);
5963                                 array_push($rv, $rk);
5964                         }
5965                         if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
5966
5967                         if (count($rv) > 0)
5968                                 label_update_cache($link, $id, $rv);
5969                         else
5970                                 label_update_cache($link, $id, array("no-labels" => 1));
5971                 }
5972
5973                 return $rv;
5974         }
5975
5976
5977         function label_find_caption($link, $label, $owner_uid) {
5978                 $result = db_query($link,
5979                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
5980                                 AND owner_uid = '$owner_uid' LIMIT 1");
5981
5982                 if (db_num_rows($result) == 1) {
5983                         return db_fetch_result($result, 0, "caption");
5984                 } else {
5985                         return "";
5986                 }
5987         }
5988
5989         function label_update_cache($link, $id, $labels = false, $force = false) {
5990
5991                 if ($force)
5992                         label_clear_cache($link, $id);
5993
5994                 if (!$labels)
5995                         $labels = get_article_labels($link, $id);
5996
5997                 $labels = db_escape_string(json_encode($labels));
5998
5999                 db_query($link, "UPDATE ttrss_user_entries SET
6000                         label_cache = '$labels' WHERE ref_id = '$id'");
6001
6002         }
6003
6004         function label_clear_cache($link, $id) {
6005
6006                 db_query($link, "UPDATE ttrss_user_entries SET
6007                         label_cache = '' WHERE ref_id = '$id'");
6008
6009         }
6010
6011         function label_remove_article($link, $id, $label, $owner_uid) {
6012
6013                 $label_id = label_find_id($link, $label, $owner_uid);
6014
6015                 if (!$label_id) return;
6016
6017                 $result = db_query($link,
6018                         "DELETE FROM ttrss_user_labels2
6019                         WHERE
6020                                 label_id = '$label_id' AND
6021                                 article_id = '$id'");
6022
6023                 label_clear_cache($link, $id);
6024         }
6025
6026         function label_add_article($link, $id, $label, $owner_uid) {
6027
6028                 global $memcache;
6029
6030                 if ($memcache) {
6031                         $obj_id = md5("LABELS:$id:$owner_uid");
6032                         $memcache->delete($obj_id);
6033                 }
6034
6035                 $label_id = label_find_id($link, $label, $owner_uid);
6036
6037                 if (!$label_id) return;
6038
6039                 $result = db_query($link,
6040                         "SELECT
6041                                 article_id FROM ttrss_labels2, ttrss_user_labels2
6042                         WHERE
6043                                 label_id = id AND
6044                                 label_id = '$label_id' AND
6045                                 article_id = '$id' AND owner_uid = '$owner_uid'
6046                         LIMIT 1");
6047
6048                 if (db_num_rows($result) == 0) {
6049                         db_query($link, "INSERT INTO ttrss_user_labels2
6050                                 (label_id, article_id) VALUES ('$label_id', '$id')");
6051                 }
6052
6053                 label_clear_cache($link, $id);
6054
6055         }
6056
6057         function label_remove($link, $id, $owner_uid) {
6058                 global $memcache;
6059
6060                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6061
6062                 if ($memcache) {
6063                         $obj_id = md5("LABELS:$id:$owner_uid");
6064                         $memcache->delete($obj_id);
6065                 }
6066
6067                 db_query($link, "BEGIN");
6068
6069                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6070                         WHERE id = '$id'");
6071
6072                 $caption = db_fetch_result($result, 0, "caption");
6073
6074                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
6075                         AND owner_uid = " . $owner_uid);
6076
6077                 if (db_affected_rows($link, $result) != 0 && $caption) {
6078
6079                         /* Remove access key for the label */
6080
6081                         $ext_id = -11 - $id;
6082
6083                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6084                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
6085
6086                         /* Disable filters that reference label being removed */
6087
6088                         db_query($link, "UPDATE ttrss_filters SET
6089                                 enabled = false WHERE action_param = '$caption'
6090                                         AND action_id = 7
6091                                         AND owner_uid = " . $owner_uid);
6092
6093                         /* Remove cached data */
6094
6095                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
6096                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
6097
6098                 }
6099
6100                 db_query($link, "COMMIT");
6101         }
6102
6103         function label_create($link, $caption) {
6104
6105                 db_query($link, "BEGIN");
6106
6107                 $result = false;
6108
6109                 $result = db_query($link, "SELECT id FROM ttrss_labels2
6110                         WHERE caption = '$caption' AND owner_uid =  ". $_SESSION["uid"]);
6111
6112                 if (db_num_rows($result) == 0) {
6113                         $result = db_query($link,
6114                                 "INSERT INTO ttrss_labels2 (caption,owner_uid)
6115                                         VALUES ('$caption', '".$_SESSION["uid"]."')");
6116
6117                         $result = db_affected_rows($link, $result) != 0;
6118                 }
6119
6120                 db_query($link, "COMMIT");
6121
6122                 return $result;
6123         }
6124
6125         function print_labels_headlines_dropdown($link, $feed_id) {
6126                 print "<option value=\"addLabel()\">".__("Create label...")."</option>";
6127
6128                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2 WHERE
6129                         owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6130
6131                 while ($line = db_fetch_assoc($result)) {
6132
6133                         $label_id = $line["id"];
6134                         $label_caption = $line["caption"];
6135                         $id = $line["id"];
6136
6137                         if ($feed_id < -10 && $feed_id == -11-$label_id) {
6138                                 print "<option id=\"LHDL-$id\"
6139                                         value=\"selectionRemoveLabel($label_id)\">".
6140                                         __('Remove:') . " $label_caption</option>";
6141                         } else {
6142                                 print "<option id=\"LHDL-$id\"
6143                                         value=\"selectionAssignLabel($label_id)\">".
6144                                         __('Assign:') . " $label_caption</option>";
6145                         }
6146                 }
6147         }
6148
6149         function format_tags_string($tags, $id) {
6150
6151                 $tags_str = "";
6152                 $tags_nolinks_str = "";
6153
6154                 $num_tags = 0;
6155
6156 /*              if (get_user_theme($link) == "3pane") {
6157                         $tag_limit = 3;
6158                 } else {
6159                         $tag_limit = 6;
6160                 } */
6161
6162                 $tag_limit = 6;
6163
6164                 $formatted_tags = array();
6165
6166                 foreach ($tags as $tag) {
6167                         $num_tags++;
6168                         $tag_escaped = str_replace("'", "\\'", $tag);
6169
6170                         if (mb_strlen($tag) > 30) {
6171                                 $tag = truncate_string($tag, 30);
6172                         }
6173
6174                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
6175
6176                         array_push($formatted_tags, $tag_str);
6177
6178                         $tmp_tags_str = implode(", ", $formatted_tags);
6179
6180                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
6181                                 break;
6182                         }
6183                 }
6184
6185                 $tags_str = implode(", ", $formatted_tags);
6186
6187                 if ($num_tags < count($tags)) {
6188                         $tags_str .= ", &hellip;";
6189                 }
6190
6191                 if ($num_tags == 0) {
6192                         $tags_str = __("no tags");
6193                 }
6194
6195                 return $tags_str;
6196
6197         }
6198
6199         function format_article_labels($labels, $id) {
6200
6201                 $labels_str = "";
6202
6203                 foreach ($labels as $l) {
6204                         $labels_str .= sprintf("<span class='hlLabelRef'
6205                                 style='color : %s; background-color : %s'>%s</span>",
6206                                         $l[2], $l[3], $l[1]);
6207                         }
6208
6209                 return $labels_str;
6210
6211         }
6212
6213         function format_article_note($id, $note) {
6214
6215                 $note_escaped = htmlspecialchars($note, ENT_QUOTES);
6216
6217                 $str = "<div class='articleNote'>";
6218                 $str .= $note;
6219                 $str .= "<div class='articleNoteOps'>";
6220                 $str .= "<a href=\"javascript:publishWithNote($id, '$note_escaped')\">".
6221                         __('edit note')."</a>";
6222                 $str .= "</div>";
6223                 $str .= "</div>";
6224
6225                 return $str;
6226         }
6227
6228         function toggle_collapse_cat($link, $cat_id, $mode) {
6229                 if ($cat_id > 0) {
6230                         $mode = bool_to_sql_bool($mode);
6231
6232                         db_query($link, "UPDATE ttrss_feed_categories SET
6233                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
6234                                 $_SESSION["uid"]);
6235                 } else {
6236                         $pref_name = '';
6237
6238                         switch ($cat_id) {
6239                         case -1:
6240                                 $pref_name = '_COLLAPSED_SPECIAL';
6241                                 break;
6242                         case -2:
6243                                 $pref_name = '_COLLAPSED_LABELS';
6244                                 break;
6245                         case 0:
6246                                 $pref_name = '_COLLAPSED_UNCAT';
6247                                 break;
6248                         }
6249
6250                         if ($pref_name) {
6251                                 if ($mode) {
6252                                         set_pref($link, $pref_name, 'true');
6253                                 } else {
6254                                         set_pref($link, $pref_name, 'false');
6255                                 }
6256                         }
6257                 }
6258         }
6259
6260         function remove_feed($link, $id, $owner_uid) {
6261
6262                 if ($id > 0) {
6263
6264                         /* save starred articles in Archived feed */
6265
6266                         db_query($link, "BEGIN");
6267
6268                         /* prepare feed if necessary */
6269
6270                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6271                                 WHERE id = '$id'");
6272
6273                         if (db_num_rows($result) == 0) {
6274                                 db_query($link, "INSERT INTO ttrss_archived_feeds
6275                                         (id, owner_uid, title, feed_url, site_url)
6276                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6277                                 WHERE id = '$id'");
6278                         }
6279
6280                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
6281                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
6282                                         marked = true AND owner_uid = $owner_uid");
6283
6284                         /* Remove access key for the feed */
6285
6286                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6287                                 feed_id = '$id' AND owner_uid = $owner_uid");
6288
6289                         /* remove the feed */
6290
6291                         db_query($link, "DELETE FROM ttrss_feeds
6292                                         WHERE id = '$id' AND owner_uid = $owner_uid");
6293
6294                         db_query($link, "COMMIT");
6295
6296 /*                      if (file_exists(ICONS_DIR . "/$id.ico")) {
6297                                 unlink(ICONS_DIR . "/$id.ico");
6298                         } */
6299
6300                         ccache_remove($link, $id, $owner_uid);
6301
6302                 } else {
6303                         label_remove($link, -11-$id, $owner_uid);
6304                         ccache_remove($link, -11-$id, $owner_uid);
6305                 }
6306         }
6307
6308         function add_feed_category($link, $feed_cat) {
6309
6310                 if (!$feed_cat) return false;
6311
6312                 db_query($link, "BEGIN");
6313
6314                 $result = db_query($link,
6315                         "SELECT id FROM ttrss_feed_categories
6316                         WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
6317
6318                 if (db_num_rows($result) == 0) {
6319
6320                         $result = db_query($link,
6321                                 "INSERT INTO ttrss_feed_categories (owner_uid,title)
6322                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
6323
6324                         db_query($link, "COMMIT");
6325
6326                         return true;
6327                 }
6328
6329                 return false;
6330         }
6331
6332         function remove_feed_category($link, $id, $owner_uid) {
6333
6334                 db_query($link, "DELETE FROM ttrss_feed_categories
6335                         WHERE id = '$id' AND owner_uid = $owner_uid");
6336
6337                 ccache_remove($link, $id, $owner_uid, true);
6338         }
6339
6340         function archive_article($link, $id, $owner_uid) {
6341                 db_query($link, "BEGIN");
6342
6343                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6344                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
6345
6346                 if (db_num_rows($result) != 0) {
6347
6348                         /* prepare the archived table */
6349
6350                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
6351
6352                         if ($feed_id) {
6353                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6354                                         WHERE id = '$feed_id'");
6355
6356                                 if (db_num_rows($result) == 0) {
6357                                         db_query($link, "INSERT INTO ttrss_archived_feeds
6358                                                 (id, owner_uid, title, feed_url, site_url)
6359                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6360                                         WHERE id = '$feed_id'");
6361                                 }
6362
6363                                 db_query($link, "UPDATE ttrss_user_entries
6364                                         SET orig_feed_id = feed_id, feed_id = NULL
6365                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6366                         }
6367                 }
6368
6369                 db_query($link, "COMMIT");
6370         }
6371
6372         function getArticleFeed($link, $id) {
6373                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6374                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6375
6376                 if (db_num_rows($result) != 0) {
6377                         return db_fetch_result($result, 0, "feed_id");
6378                 } else {
6379                         return 0;
6380                 }
6381         }
6382
6383         function make_url_from_parts($parts) {
6384                 $url = $parts['scheme'] . '://' . $parts['host'];
6385
6386                 if ($parts['path']) $url .= $parts['path'];
6387                 if ($parts['query']) $url .= '?' . $parts['query'];
6388
6389                 return $url;
6390         }
6391
6392         /**
6393          * Fixes incomplete URLs by prepending "http://".
6394          * Also replaces feed:// with http://, and
6395          * prepends a trailing slash if the url is a domain name only.
6396          *
6397          * @param string $url Possibly incomplete URL
6398          *
6399          * @return string Fixed URL.
6400          */
6401         function fix_url($url) {
6402                 if (strpos($url, '://') === false) {
6403                         $url = 'http://' . $url;
6404                 } else if (substr($url, 0, 5) == 'feed:') {
6405                         $url = 'http:' . substr($url, 5);
6406                 }
6407
6408                 //prepend slash if the URL has no slash in it
6409                 // "http://www.example" -> "http://www.example/"
6410                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
6411                         $url .= '/';
6412                 }
6413
6414                 if ($url != "http:///")
6415                         return $url;
6416                 else
6417                         return '';
6418         }
6419
6420         function validate_feed_url($url) {
6421                 $parts = parse_url($url);
6422
6423                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
6424
6425         }
6426
6427         function get_article_enclosures($link, $id) {
6428
6429                 global $memcache;
6430
6431                 $query = "SELECT * FROM ttrss_enclosures
6432                         WHERE post_id = '$id' AND content_url != ''";
6433
6434                 $obj_id = md5("ENCLOSURES:$id");
6435
6436                 $rv = array();
6437
6438                 if ($memcache && $obj = $memcache->get($obj_id)) {
6439                         $rv = $obj;
6440                 } else {
6441                         $result = db_query($link, $query);
6442
6443                         if (db_num_rows($result) > 0) {
6444                                 while ($line = db_fetch_assoc($result)) {
6445                                         array_push($rv, $line);
6446                                 }
6447                                 if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6448                         }
6449                 }
6450
6451                 return $rv;
6452         }
6453
6454         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset) {
6455
6456                         $feeds = array();
6457
6458                         /* Labels */
6459
6460                         if ($cat_id == -4 || $cat_id == -2) {
6461                                 $counters = getLabelCounters($link, true);
6462
6463                                 foreach (array_values($counters) as $cv) {
6464
6465                                         $unread = $cv["counter"];
6466
6467                                         if ($unread || !$unread_only) {
6468
6469                                                 $row = array(
6470                                                                 "id" => $cv["id"],
6471                                                                 "title" => $cv["description"],
6472                                                                 "unread" => $cv["counter"],
6473                                                                 "cat_id" => -2,
6474                                                         );
6475
6476                                                 array_push($feeds, $row);
6477                                         }
6478                                 }
6479                         }
6480
6481                         /* Virtual feeds */
6482
6483                         if ($cat_id == -4 || $cat_id == -1) {
6484                                 foreach (array(-1, -2, -3, -4, 0) as $i) {
6485                                         $unread = getFeedUnread($link, $i);
6486
6487                                         if ($unread || !$unread_only) {
6488                                                 $title = getFeedTitle($link, $i);
6489
6490                                                 $row = array(
6491                                                                 "id" => $i,
6492                                                                 "title" => $title,
6493                                                                 "unread" => $unread,
6494                                                                 "cat_id" => -1,
6495                                                         );
6496                                                 array_push($feeds, $row);
6497                                         }
6498
6499                                 }
6500                         }
6501
6502                         /* Real feeds */
6503
6504                         if ($limit) {
6505                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
6506                         } else {
6507                                 $limit_qpart = "";
6508                         }
6509
6510                         if ($cat_id == -4 || $cat_id == -3) {
6511                                 $result = db_query($link, "SELECT
6512                                         id, feed_url, cat_id, title, ".
6513                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6514                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
6515                                                 " ORDER BY cat_id, title " . $limit_qpart);
6516                         } else {
6517
6518                                 if ($cat_id)
6519                                         $cat_qpart = "cat_id = '$cat_id'";
6520                                 else
6521                                         $cat_qpart = "cat_id IS NULL";
6522
6523                                 $result = db_query($link, "SELECT
6524                                         id, feed_url, cat_id, title, ".
6525                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6526                                                 FROM ttrss_feeds WHERE
6527                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
6528                                                 " ORDER BY cat_id, title " . $limit_qpart);
6529                         }
6530
6531                         while ($line = db_fetch_assoc($result)) {
6532
6533                                 $unread = getFeedUnread($link, $line["id"]);
6534
6535                                 $has_icon = feed_has_icon($line['id']);
6536
6537                                 if ($unread || !$unread_only) {
6538
6539                                         $row = array(
6540                                                         "feed_url" => $line["feed_url"],
6541                                                         "title" => $line["title"],
6542                                                         "id" => (int)$line["id"],
6543                                                         "unread" => (int)$unread,
6544                                                         "has_icon" => $has_icon,
6545                                                         "cat_id" => (int)$line["cat_id"],
6546                                                         "last_updated" => strtotime($line["last_updated"])
6547                                                 );
6548
6549                                         array_push($feeds, $row);
6550                                 }
6551                         }
6552
6553                 return $feeds;
6554         }
6555
6556         function api_get_headlines($link, $feed_id, $limit, $offset,
6557                                         $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order) {
6558
6559                         /* do not rely on params below */
6560
6561                         $search = db_escape_string($_REQUEST["search"]);
6562                         $search_mode = db_escape_string($_REQUEST["search_mode"]);
6563                         $match_on = db_escape_string($_REQUEST["match_on"]);
6564
6565                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
6566                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
6567                                 $order, $offset);
6568
6569                         $result = $qfh_ret[0];
6570                         $feed_title = $qfh_ret[1];
6571
6572                         $headlines = array();
6573
6574                         while ($line = db_fetch_assoc($result)) {
6575                                 $is_updated = ($line["last_read"] == "" &&
6576                                         ($line["unread"] != "t" && $line["unread"] != "1"));
6577
6578                                 $headline_row = array(
6579                                                 "id" => (int)$line["id"],
6580                                                 "unread" => sql_bool_to_bool($line["unread"]),
6581                                                 "marked" => sql_bool_to_bool($line["marked"]),
6582                                                 "published" => sql_bool_to_bool($line["published"]),
6583                                                 "updated" => strtotime($line["updated"]),
6584                                                 "is_updated" => $is_updated,
6585                                                 "title" => $line["title"],
6586                                                 "link" => $line["link"],
6587                                                 "feed_id" => $line["feed_id"],
6588                                                 "tags" => get_article_tags($link, $line["id"]),
6589                                         );
6590
6591                                 if ($show_excerpt) {
6592                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
6593                                         $headline_row["excerpt"] = $excerpt;
6594                                 }
6595
6596                                 if ($show_content) {
6597                                         $headline_row["content"] = $line["content_preview"];
6598                                 }
6599
6600                                 array_push($headlines, $headline_row);
6601                         }
6602
6603                         return $headlines;
6604         }
6605
6606         function generate_dashboard_feed($link) {
6607                 print "<headlines id=\"-5\" is_cat=\"\">";
6608
6609                 print "<toolbar><![CDATA[]]></toolbar>";
6610
6611                 print '<content><![CDATA[';
6612
6613                 print "<div class='whiteBox'>".__('No feed selected.');
6614
6615                 print "<p class=\"small\"><span class=\"insensitive\">";
6616
6617                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
6618                         WHERE owner_uid = " . $_SESSION['uid']);
6619
6620                 $last_updated = db_fetch_result($result, 0, "last_updated");
6621                 $last_updated = make_local_datetime($link, $last_updated, false);
6622
6623                 printf(__("Feeds last updated at %s"), $last_updated);
6624
6625                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
6626                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
6627
6628                 $num_errors = db_fetch_result($result, 0, "num_errors");
6629
6630                 if ($num_errors > 0) {
6631                         print "<br/>";
6632                         print "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
6633                                 __('Some feeds have update errors (click for details)')."</a>";
6634                 }
6635                 print "</span></p>";
6636
6637                 print "]]></content>";
6638                 print "</headlines>";
6639
6640                 print "<headlines-info><![CDATA[";
6641
6642                 $info = array("count" => 0,
6643                         "vgroup_last_feed" => '',
6644                         "unread" => 0,
6645                         "disable_cache" => true);
6646
6647                 print json_encode($info);
6648
6649                 print "]]></headlines-info>";
6650
6651         }
6652
6653         function save_email_address($link, $email) {
6654                 // FIXME: implement persistent storage of emails
6655
6656                 if (!$_SESSION['stored_emails'])
6657                         $_SESSION['stored_emails'] = array();
6658
6659                 if (!in_array($email, $_SESSION['stored_emails']))
6660                         array_push($_SESSION['stored_emails'], $email);
6661         }
6662
6663         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6664                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6665
6666                 $sql_is_cat = bool_to_sql_bool($is_cat);
6667
6668                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6669                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6670                         AND owner_uid = " . $owner_uid);
6671
6672                 if (db_num_rows($result) == 1) {
6673                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6674
6675                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
6676                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
6677                                 AND owner_uid = " . $owner_uid);
6678
6679                         return $key;
6680
6681                 } else {
6682                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
6683                 }
6684         }
6685
6686         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6687
6688                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6689
6690                 $sql_is_cat = bool_to_sql_bool($is_cat);
6691
6692                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6693                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6694                         AND owner_uid = " . $owner_uid);
6695
6696                 if (db_num_rows($result) == 1) {
6697                         return db_fetch_result($result, 0, "access_key");
6698                 } else {
6699                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6700
6701                         $result = db_query($link, "INSERT INTO ttrss_access_keys
6702                                 (access_key, feed_id, is_cat, owner_uid)
6703                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
6704
6705                         return $key;
6706                 }
6707                 return false;
6708         }
6709
6710         /**
6711          * Extracts RSS/Atom feed URLs from the given HTML URL.
6712          *
6713          * @param string $url HTML page URL
6714          *
6715          * @return array Array of feeds. Key is the full URL, value the title
6716          */
6717         function get_feeds_from_html($url)
6718         {
6719                 $url     = fix_url($url);
6720                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
6721
6722                 libxml_use_internal_errors(true);
6723
6724                 $doc = new DOMDocument();
6725                 $doc->loadHTMLFile($url);
6726                 $xpath = new DOMXPath($doc);
6727                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
6728                 $feedUrls = array();
6729                 foreach ($entries as $entry) {
6730                         if ($entry->hasAttribute('href')) {
6731                                 $title = $entry->getAttribute('title');
6732                                 if ($title == '') {
6733                                         $title = $entry->getAttribute('type');
6734                                 }
6735                                 $feedUrl = rewrite_relative_url(
6736                                         $baseUrl, $entry->getAttribute('href')
6737                                 );
6738                                 $feedUrls[$feedUrl] = $title;
6739                         }
6740                 }
6741                 return $feedUrls;
6742         }
6743
6744         /**
6745          * Checks if the content behind the given URL is a HTML file
6746          *
6747          * @param string $url URL to check
6748          *
6749          * @return boolean True if the URL contains HTML content
6750          */
6751         function url_is_html($url) {
6752                 $content = substr(fetch_file_contents($url, false), 0, 1000);
6753                 if (stripos($content, '<html>') === false
6754                         && stripos($content, '<html ') === false
6755                 ) {
6756                         return false;
6757                 }
6758
6759                 return true;
6760         }
6761
6762         function print_label_select($link, $name, $value, $attributes = "") {
6763
6764                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6765                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6766
6767                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
6768                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
6769
6770                 while ($line = db_fetch_assoc($result)) {
6771
6772                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
6773
6774                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
6775                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
6776
6777                 }
6778
6779 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
6780
6781                 print "</select>";
6782
6783
6784         }
6785
6786         function print_article_enclosures($link, $id, $always_display_enclosures,
6787                                         $article_content) {
6788
6789                 $result = get_article_enclosures($link, $id);
6790
6791                 if (count($result) > 0) {
6792
6793                         $entries_html = array();
6794                         $entries = array();
6795
6796                         foreach ($result as $line) {
6797
6798                                 $url = $line["content_url"];
6799                                 $ctype = $line["content_type"];
6800
6801                                 if (!$ctype) $ctype = __("unknown type");
6802
6803                                 $filename = substr($url, strrpos($url, "/")+1);
6804
6805                                 $entry = format_inline_player($link, $url, $ctype);
6806
6807                                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
6808                                         $filename . " (" . $ctype . ")" . "</a>";
6809
6810                                 array_push($entries_html, $entry);
6811
6812                                 $entry = array();
6813
6814                                 $entry["type"] = $ctype;
6815                                 $entry["filename"] = $filename;
6816                                 $entry["url"] = $url;
6817
6818                                 array_push($entries, $entry);
6819                         }
6820
6821                         print "<div class=\"postEnclosures\">";
6822
6823                         if (!get_pref($link, "STRIP_IMAGES")) {
6824                                 if ($always_display_enclosures ||
6825                                                         !preg_match("/<img/i", $article_content)) {
6826
6827                                         foreach ($entries as $entry) {
6828
6829                                                 if (preg_match("/image/", $entry["type"]) ||
6830                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
6831
6832                                                                 print "<p><img
6833                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
6834                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
6835                                                 }
6836                                         }
6837                                 }
6838                         }
6839
6840                         if (count($entries) == 1) {
6841                                 print __("Attachment:") . " ";
6842                         } else {
6843                                 print __("Attachments:") . " ";
6844                         }
6845
6846                         print join(", ", $entries_html);
6847
6848                         print "</div>";
6849                 }
6850         }
6851
6852         function getLastArticleId($link) {
6853                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
6854                         WHERE owner_uid = " . $_SESSION["uid"]);
6855
6856                 if (db_num_rows($result) == 1) {
6857                         return db_fetch_result($result, 0, "id");
6858                 } else {
6859                         return -1;
6860                 }
6861         }
6862
6863         function build_url($parts) {
6864                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
6865         }
6866
6867         /**
6868          * Converts a (possibly) relative URL to a absolute one.
6869          *
6870          * @param string $url     Base URL (i.e. from where the document is)
6871          * @param string $rel_url Possibly relative URL in the document
6872          *
6873          * @return string Absolute URL
6874          */
6875         function rewrite_relative_url($url, $rel_url) {
6876                 if (strpos($rel_url, "://") !== false) {
6877                         return $rel_url;
6878                 } else if (strpos($rel_url, "/") === 0)
6879                 {
6880                         $parts = parse_url($url);
6881                         $parts['path'] = $rel_url;
6882
6883                         return build_url($parts);
6884
6885                 } else {
6886                         $parts = parse_url($url);
6887                         if (!isset($parts['path'])) {
6888                                 $parts['path'] = '/';
6889                         }
6890                         $dir = $parts['path'];
6891                         if (substr($dir, -1) !== '/') {
6892                                 $dir = dirname($parts['path']);
6893                                 $dir !== '/' && $dir .= '/';
6894                         }
6895                         $parts['path'] = $dir . $rel_url;
6896
6897                         return build_url($parts);
6898                 }
6899         }
6900
6901         function sphinx_search($query, $offset = 0, $limit = 30) {
6902                 $sphinxClient = new SphinxClient();
6903
6904                 $sphinxClient->SetServer('localhost', 9312);
6905                 $sphinxClient->SetConnectTimeout(1);
6906
6907                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
6908                         'feed_title' => 20));
6909
6910                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
6911                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
6912                 $sphinxClient->SetLimits($offset, $limit, 1000);
6913                 $sphinxClient->SetArrayResult(false);
6914                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
6915
6916                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
6917
6918                 $ids = array();
6919
6920                 if (is_array($result['matches'])) {
6921                         foreach (array_keys($result['matches']) as $int_id) {
6922                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
6923                                 array_push($ids, $ref_id);
6924                         }
6925                 }
6926
6927                 return $ids;
6928         }
6929
6930         function cleanup_tags($link, $days = 14, $limit = 1000) {
6931
6932                 if (DB_TYPE == "pgsql") {
6933                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
6934                 } else if (DB_TYPE == "mysql") {
6935                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
6936                 }
6937
6938                 $tags_deleted = 0;
6939
6940                 while ($limit > 0) {
6941                         $limit_part = 500;
6942
6943                         $query = "SELECT ttrss_tags.id AS id
6944                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
6945                                 WHERE post_int_id = int_id AND $interval_query AND
6946                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
6947
6948                         $result = db_query($link, $query);
6949
6950                         $ids = array();
6951
6952                         while ($line = db_fetch_assoc($result)) {
6953                                 array_push($ids, $line['id']);
6954                         }
6955
6956                         if (count($ids) > 0) {
6957                                 $ids = join(",", $ids);
6958                                 print ".";
6959
6960                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
6961                                 $tags_deleted += db_affected_rows($link, $tmp_result);
6962                         } else {
6963                                 break;
6964                         }
6965
6966                         $limit -= $limit_part;
6967                 }
6968
6969                 print "\n";
6970
6971                 return $tags_deleted;
6972         }
6973
6974         function feedlist_init_cat($link, $cat_id, $hidden = false) {
6975                 $obj = array();
6976                 $cat_id = (int) $cat_id;
6977
6978                 if ($cat_id > 0) {
6979                         $cat_unread = ccache_find($link, $cat_id, $_SESSION["uid"], true);
6980                 } else if ($cat_id == 0 || $cat_id == -2) {
6981                         $cat_unread = getCategoryUnread($link, $cat_id);
6982                 }
6983
6984                 $obj['id'] = 'CAT:' . $cat_id;
6985                 $obj['items'] = array();
6986                 $obj['name'] = getCategoryTitle($link, $cat_id);
6987                 $obj['type'] = 'feed';
6988                 $obj['unread'] = (int) $cat_unread;
6989                 $obj['hidden'] = $hidden;
6990                 $obj['bare_id'] = $cat_id;
6991
6992                 return $obj;
6993         }
6994
6995         function feedlist_init_feed($link, $feed_id, $title = false, $unread = false, $error = '', $updated = '') {
6996                 $obj = array();
6997                 $feed_id = (int) $feed_id;
6998
6999                 if (!$title)
7000                         $title = getFeedTitle($link, $feed_id, false);
7001
7002                 if ($unread === false)
7003                         $unread = getFeedUnread($link, $feed_id, false);
7004
7005                 $obj['id'] = 'FEED:' . $feed_id;
7006                 $obj['name'] = $title;
7007                 $obj['unread'] = (int) $unread;
7008                 $obj['type'] = 'feed';
7009                 $obj['error'] = $error;
7010                 $obj['updated'] = $updated;
7011                 $obj['icon'] = getFeedIcon($feed_id);
7012                 $obj['bare_id'] = $feed_id;
7013
7014                 return $obj;
7015         }
7016
7017         function fetch_twitter_rss($link, $url, $owner_uid) {
7018                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
7019                         WHERE id = $owner_uid");
7020
7021                 $access_token = json_decode(db_fetch_result($result, 0, 'twitter_oauth'), true);
7022
7023                 if ($access_token) {
7024
7025                         /* Create a TwitterOauth object with consumer/user tokens. */
7026                         $connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $access_token['oauth_token'], $access_token['oauth_token_secret']);
7027
7028                         /* If method is set change API call made. Test is called by default. */
7029                         $content = $connection->get($url);
7030
7031                         $rss = new MagpieRSS($content, MAGPIE_OUTPUT_ENCODING,
7032                                 MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING );
7033
7034                         return $rss;
7035                 } else {
7036                         return false;
7037                 }
7038         }
7039
7040         function print_user_stylesheet($link) {
7041                 $value = get_pref($link, 'USER_STYLESHEET');
7042
7043                 if ($value) {
7044                         print "<style type=\"text/css\">";
7045                         print $value;
7046                         print "</style>";
7047                 }
7048
7049         }
7050
7051         function rewrite_urls($line) {
7052                 global $url_regex;
7053
7054                 $urls = null;
7055
7056                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
7057                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
7058
7059                 return $result;
7060         }
7061
7062 ?>