functions.php

   1 <?php
   2
   3         date_default_timezone_set('UTC');
   4         if (defined('E_DEPRECATED')) {
   5                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
   6         } else {
   7                 error_reporting(E_ALL & ~E_NOTICE);
   8         }
   9
  10         require_once 'config.php';
  11
  12         if (DB_TYPE == "pgsql") {
  13                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  14         } else {
  15                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  16         }
  17
  18         define('THEME_VERSION_REQUIRED', 1.1);
  19
  20         /**
  21          * Return available translations names.
  22          *
  23          * @access public
  24          * @return array A array of available translations.
  25          */
  26         function get_translations() {
  27                 $tr = array(
  28                                         "auto"  => "Detect automatically",
  29                                         "ca_CA" => "Català",
  30                                         "en_US" => "English",
  31                                         "es_ES" => "Español",
  32                                         "de_DE" => "Deutsch",
  33                                         "fr_FR" => "Français",
  34                                         "hu_HU" => "Magyar (Hungarian)",
  35                                         "it_IT" => "Italiano",
  36                                         "ja_JP" => "日本語 (Japanese)",
  37                                         "nb_NO" => "Norwegian bokmål",
  38                                         "ru_RU" => "Русский",
  39                                         "pt_BR" => "Portuguese/Brazil",
  40                                         "zh_CN" => "Simplified Chinese");
  41
  42                 return $tr;
  43         }
  44
  45         require_once "lib/accept-to-gettext.php";
  46         require_once "lib/gettext/gettext.inc";
  47
  48         function startup_gettext() {
  49
  50                 # Get locale from Accept-Language header
  51                 $lang = al2gt(array_keys(get_translations()), "text/html");
  52
  53                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
  54                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
  55                 }
  56
  57                 if ($_COOKIE["ttrss_lang"] && $_COOKIE["ttrss_lang"] != "auto") {
  58                         $lang = $_COOKIE["ttrss_lang"];
  59                 }
  60
  61                 /* In login action of mobile version */
  62                 if ($_POST["language"] && defined('MOBILE_VERSION')) {
  63                         $lang = $_POST["language"];
  64                         $_COOKIE["ttrss_lang"] = $lang;
  65                 }
  66
  67                 if ($lang) {
  68                         if (defined('LC_MESSAGES')) {
  69                                 _setlocale(LC_MESSAGES, $lang);
  70                         } else if (defined('LC_ALL')) {
  71                                 _setlocale(LC_ALL, $lang);
  72                         }
  73
  74                         if (defined('MOBILE_VERSION')) {
  75                                 _bindtextdomain("messages", "../locale");
  76                         } else {
  77                                 _bindtextdomain("messages", "locale");
  78                         }
  79
  80                         _textdomain("messages");
  81                         _bind_textdomain_codeset("messages", "UTF-8");
  82                 }
  83         }
  84
  85         startup_gettext();
  86
  87         if (defined('MEMCACHE_SERVER')) {
  88                 $memcache = new Memcache;
  89                 $memcache->connect(MEMCACHE_SERVER, 11211);
  90         }
  91
  92         require_once 'db-prefs.php';
  93         require_once 'errors.php';
  94         require_once 'version.php';
  95
  96         require_once 'lib/phpmailer/class.phpmailer.php';
  97         require_once 'lib/sphinxapi.php';
  98         require_once 'lib/tmhoauth/tmhOAuth.php';
  99
 100         //define('MAGPIE_USER_AGENT_EXT', ' (Tiny Tiny RSS/' . VERSION . ')');
 101         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
 102         define('MAGPIE_CACHE_AGE', 60*15); // 15 minutes
 103
 104         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 105         define('MAGPIE_USER_AGENT', SELF_USER_AGENT);
 106
 107         ini_set('user_agent', SELF_USER_AGENT);
 108
 109         require_once "lib/simplepie/simplepie.inc";
 110         require_once "lib/magpierss/rss_fetch.inc";
 111         require_once 'lib/magpierss/rss_utils.inc';
 112         require_once 'lib/htmlpurifier/library/HTMLPurifier.auto.php';
 113
 114         $config = HTMLPurifier_Config::createDefault();
 115
 116         $allowed = "p,a[href],i,em,b,strong,code,pre,blockquote,br,img[src|alt|title],ul,ol,li,h1,h2,h3,h4,s";
 117
 118         $config->set('HTML', 'Allowed', $allowed);
 119         $purifier = new HTMLPurifier($config);
 120
 121         /**
 122          * Print a timestamped debug message.
 123          *
 124          * @param string $msg The debug message.
 125          * @return void
 126          */
 127         function _debug($msg) {
 128                 $ts = strftime("%H:%M:%S", time());
 129                 if (function_exists('posix_getpid')) {
 130                         $ts = "$ts/" . posix_getpid();
 131                 }
 132                 print "[$ts] $msg\n";
 133         } // function _debug
 134
 135         /**
 136          * Purge a feed old posts.
 137          *
 138          * @param mixed $link A database connection.
 139          * @param mixed $feed_id The id of the purged feed.
 140          * @param mixed $purge_interval Olderness of purged posts.
 141          * @param boolean $debug Set to True to enable the debug. False by default.
 142          * @access public
 143          * @return void
 144          */
 145         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 146
 147                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
 148
 149                 $rows = -1;
 150
 151                 $result = db_query($link,
 152                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 153
 154                 $owner_uid = false;
 155
 156                 if (db_num_rows($result) == 1) {
 157                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 158                 }
 159
 160                 if ($purge_interval == -1 || !$purge_interval) {
 161                         if ($owner_uid) {
 162                                 ccache_update($link, $feed_id, $owner_uid);
 163                         }
 164                         return;
 165                 }
 166
 167                 if (!$owner_uid) return;
 168
 169                 if (FORCE_ARTICLE_PURGE == 0) {
 170                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
 171                                 $owner_uid, false);
 172                 } else {
 173                         $purge_unread = true;
 174                         $purge_interval = FORCE_ARTICLE_PURGE;
 175                 }
 176
 177                 if (!$purge_unread) $query_limit = " unread = false AND ";
 178
 179                 if (DB_TYPE == "pgsql") {
 180 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 181                                 marked = false AND feed_id = '$feed_id' AND
 182                                 (SELECT date_updated FROM ttrss_entries WHERE
 183                                         id = ref_id) < NOW() - INTERVAL '$purge_interval days'"); */
 184
 185                         $pg_version = get_pgsql_version($link);
 186
 187                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 188
 189                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 190                                         ttrss_entries.id = ref_id AND
 191                                         marked = false AND
 192                                         feed_id = '$feed_id' AND
 193                                         $query_limit
 194                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 195
 196                         } else {
 197
 198                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
 199                                         USING ttrss_entries
 200                                         WHERE ttrss_entries.id = ref_id AND
 201                                         marked = false AND
 202                                         feed_id = '$feed_id' AND
 203                                         $query_limit
 204                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 205                         }
 206
 207                         $rows = pg_affected_rows($result);
 208
 209                 } else {
 210
 211 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 212                                 marked = false AND feed_id = '$feed_id' AND
 213                                 (SELECT date_updated FROM ttrss_entries WHERE
 214                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 215
 216                         $result = db_query($link, "DELETE FROM ttrss_user_entries
 217                                 USING ttrss_user_entries, ttrss_entries
 218                                 WHERE ttrss_entries.id = ref_id AND
 219                                 marked = false AND
 220                                 feed_id = '$feed_id' AND
 221                                 $query_limit
 222                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 223
 224                         $rows = mysql_affected_rows($link);
 225
 226                 }
 227
 228                 ccache_update($link, $feed_id, $owner_uid);
 229
 230                 if ($debug) {
 231                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 232                 }
 233         } // function purge_feed
 234
 235         /**
 236          * Purge old posts from old feeds. Not used anymore, purging is done after feed update.
 237          *
 238          * @param mixed $link A database connection
 239          * @param boolean $do_output Set to true to enable printed output, false by default.
 240          * @param integer $limit The maximal number of removed posts.
 241          * @access public
 242          * @return void
 243          */
 244         /* function global_purge_old_posts($link, $do_output = false, $limit = false) {
 245
 246                 $random_qpart = sql_random_function();
 247
 248                 if ($limit) {
 249                         $limit_qpart = "LIMIT $limit";
 250                 } else {
 251                         $limit_qpart = "";
 252                 }
 253
 254                 $result = db_query($link,
 255                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds
 256                                 ORDER BY $random_qpart $limit_qpart");
 257
 258                 while ($line = db_fetch_assoc($result)) {
 259
 260                         $feed_id = $line["id"];
 261                         $purge_interval = $line["purge_interval"];
 262                         $owner_uid = $line["owner_uid"];
 263
 264                         if ($purge_interval == 0) {
 265
 266                                 $tmp_result = db_query($link,
 267                                         "SELECT value FROM ttrss_user_prefs WHERE
 268                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
 269
 270                                 if (db_num_rows($tmp_result) != 0) {
 271                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
 272                                 }
 273                         }
 274
 275                         if ($do_output) {
 276 //                              print "Feed $feed_id: purge interval = $purge_interval\n";
 277                         }
 278
 279                         if ($purge_interval > 0 || FORCE_ARTICLE_PURGE) {
 280                                 purge_feed($link, $feed_id, $purge_interval, $do_output);
 281                         }
 282                 }
 283
 284                 purge_orphans($link, $do_output);
 285
 286         } // function global_purge_old_posts */
 287
 288         function feed_purge_interval($link, $feed_id) {
 289
 290                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
 291                         WHERE id = '$feed_id'");
 292
 293                 if (db_num_rows($result) == 1) {
 294                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 295                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 296
 297                         if ($purge_interval == 0) $purge_interval = get_pref($link,
 298                                 'PURGE_OLD_DAYS', $owner_uid);
 299
 300                         return $purge_interval;
 301
 302                 } else {
 303                         return -1;
 304                 }
 305         }
 306
 307         function purge_old_posts($link) {
 308
 309                 $user_id = $_SESSION["uid"];
 310
 311                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
 312                         WHERE owner_uid = '$user_id'");
 313
 314                 while ($line = db_fetch_assoc($result)) {
 315
 316                         $feed_id = $line["id"];
 317                         $purge_interval = $line["purge_interval"];
 318
 319                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
 320
 321                         if ($purge_interval > 0) {
 322                                 purge_feed($link, $feed_id, $purge_interval);
 323                         }
 324                 }
 325
 326                 purge_orphans($link);
 327         }
 328
 329         function purge_orphans($link, $do_output = false) {
 330
 331                 // purge orphaned posts in main content table
 332                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
 333                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 334
 335                 if ($do_output) {
 336                         $rows = db_affected_rows($link, $result);
 337                         _debug("Purged $rows orphaned posts.");
 338                 }
 339         }
 340
 341         function get_feed_update_interval($link, $feed_id) {
 342                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
 343                         ttrss_feeds WHERE id = '$feed_id'");
 344
 345                 if (db_num_rows($result) == 1) {
 346                         $update_interval = db_fetch_result($result, 0, "update_interval");
 347                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 348
 349                         if ($update_interval != 0) {
 350                                 return $update_interval;
 351                         } else {
 352                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 353                         }
 354
 355                 } else {
 356                         return -1;
 357                 }
 358         }
 359
 360         function fetch_file_contents($url, $type = false, $login = false, $pass = false) {
 361                 $login = urlencode($login);
 362                 $pass = urlencode($pass);
 363
 364                 if (function_exists('curl_init')) {
 365                         $ch = curl_init($url);
 366
 367                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
 368                         curl_setopt($ch, CURLOPT_TIMEOUT, 45);
 369                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 370                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 371                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 372                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 373                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 374                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 375
 376                         if ($login && $pass)
 377                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 378
 379                         $contents = @curl_exec($ch);
 380                         if ($contents === false) {
 381                                 curl_close($ch);
 382                                 return false;
 383                         }
 384
 385                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 386                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 387                         curl_close($ch);
 388
 389                         if ($http_code != 200 || $type && strpos($content_type, "$type") === false) {
 390                                 return false;
 391                         }
 392
 393                         return $contents;
 394                 } else {
 395                         if ($login && $pass && $updated != 3) {
 396                                 $url_parts = array();
 397
 398                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 399
 400                                 if ($url_parts[1] && $url_parts[2]) {
 401                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 402                                 }
 403                         }
 404
 405                         return @file_get_contents($url);
 406                 }
 407
 408         }
 409
 410         /**
 411          * Try to determine the favicon URL for a feed.
 412          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 413          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 414          *
 415          * @param string $url A feed or page URL
 416          * @access public
 417          * @return mixed The favicon URL, or false if none was found.
 418          */
 419         function get_favicon_url($url) {
 420
 421                 $favicon_url = false;
 422
 423                 if ($html = @fetch_file_contents($url)) {
 424
 425                         libxml_use_internal_errors(true);
 426
 427                         $doc = new DOMDocument();
 428                         $doc->loadHTML($html);
 429                         $xpath = new DOMXPath($doc);
 430
 431                         $base = $xpath->query('/html/head/base');
 432                         foreach ($base as $b) {
 433                                 $url = $b->getAttribute("href");
 434                                 break;
 435                         }
 436
 437                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 438                         if (count($entries) > 0) {
 439                                 foreach ($entries as $entry) {
 440                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 441                                         break;
 442                                 }
 443                         }
 444                 }
 445
 446                 if (!$favicon_url)
 447                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 448
 449                 return $favicon_url;
 450         } // function get_favicon_url
 451
 452         function check_feed_favicon($site_url, $feed, $link) {
 453                 $favicon_url = get_favicon_url($site_url);
 454
 455 #               print "FAVICON [$site_url]: $favicon_url\n";
 456
 457                 $icon_file = ICONS_DIR . "/$feed.ico";
 458
 459                 if ($favicon_url && !file_exists($icon_file)) {
 460                         $contents = fetch_file_contents($favicon_url, "image");
 461                         if ($contents) {
 462                                 $fp = fopen($icon_file, "w");
 463
 464                                 if ($fp) {
 465                                         fwrite($fp, $contents);
 466                                         fclose($fp);
 467                                         chmod($icon_file, 0644);
 468                                 }
 469                         }
 470                 }
 471         }
 472
 473         function update_rss_feed($link, $feed, $ignore_daemon = false) {
 474
 475                 global $memcache;
 476
 477                 /* Update all feeds with the same URL to utilize memcache */
 478
 479                 if ($memcache) {
 480                         $result = db_query($link, "SELECT f1.id
 481                                 FROM ttrss_feeds AS f1, ttrss_feeds AS f2
 482                                 WHERE   f2.feed_url = f1.feed_url AND f2.id = '$feed'");
 483
 484                         while ($line = db_fetch_assoc($result)) {
 485                                 update_rss_feed_real($link, $line["id"], $ignore_daemon);
 486                         }
 487                 } else {
 488                         update_rss_feed_real($link, $feed, $ignore_daemon);
 489                 }
 490         }
 491
 492         function update_rss_feed_real($link, $feed, $ignore_daemon = false) {
 493
 494                 global $memcache;
 495
 496                 if (!$_REQUEST["daemon"] && !$ignore_daemon) {
 497                         return false;
 498                 }
 499
 500                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 501                         _debug("update_rss_feed: start");
 502                 }
 503
 504                 if (!$ignore_daemon) {
 505
 506                         if (DB_TYPE == "pgsql") {
 507                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
 508                                 } else {
 509                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
 510                                 }
 511
 512                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 513                                 auth_pass,cache_images,update_method
 514                                 FROM ttrss_feeds WHERE id = '$feed' AND $updstart_thresh_qpart");
 515
 516                 } else {
 517
 518                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 519                                 feed_url,auth_pass,cache_images,update_method,last_updated,
 520                                 mark_unread_on_update, owner_uid
 521                                 FROM ttrss_feeds WHERE id = '$feed'");
 522
 523                 }
 524
 525                 if (db_num_rows($result) == 0) {
 526                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 527                                 _debug("update_rss_feed: feed $feed NOT FOUND/SKIPPED");
 528                         }
 529                         return false;
 530                 }
 531
 532                 $update_method = db_fetch_result($result, 0, "update_method");
 533                 $last_updated = db_fetch_result($result, 0, "last_updated");
 534                 $owner_uid = db_fetch_result($result, 0, "owner_uid");
 535                 $mark_unread_on_update = db_fetch_result($result, 0, "mark_unread_on_update");
 536
 537                 db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
 538                         WHERE id = '$feed'");
 539
 540                 $auth_login = db_fetch_result($result, 0, "auth_login");
 541                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
 542
 543                 if ($update_method == 0)
 544                         $update_method = DEFAULT_UPDATE_METHOD + 1;
 545
 546                 // 1 - Magpie
 547                 // 2 - SimplePie
 548                 // 3 - Twitter OAuth
 549
 550                 if ($update_method == 2)
 551                         $use_simplepie = true;
 552                 else
 553                         $use_simplepie = false;
 554
 555                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 556                         _debug("update method: $update_method (feed setting: $update_method) (use simplepie: $use_simplepie)\n");
 557                 }
 558
 559                 if ($update_method == 1) {
 560                         $auth_login = urlencode($auth_login);
 561                         $auth_pass = urlencode($auth_pass);
 562                 }
 563
 564                 $update_interval = db_fetch_result($result, 0, "update_interval");
 565                 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
 566                 $fetch_url = db_fetch_result($result, 0, "feed_url");
 567
 568                 if ($update_interval < 0) { return; }
 569
 570                 $feed = db_escape_string($feed);
 571
 572                 if ($auth_login && $auth_pass && $updated != 3) {
 573                         $url_parts = array();
 574                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 575
 576                         if ($url_parts[1] && $url_parts[2]) {
 577                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 578                         }
 579
 580                 }
 581
 582                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 583                         _debug("update_rss_feed: fetching [$fetch_url]...");
 584                 }
 585
 586                 $obj_id = md5("FDATA:$use_simplepie:$fetch_url");
 587
 588                 if ($memcache && $obj = $memcache->get($obj_id)) {
 589
 590                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 591                                 _debug("update_rss_feed: data found in memcache.");
 592                         }
 593
 594                         $rss = $obj;
 595
 596                 } else {
 597
 598                         if ($update_method == 3) {
 599                                 $rss = fetch_twitter_rss($link, $fetch_url, $owner_uid);
 600                                         } else if ($update_method == 1) {
 601                                 $rss = @fetch_rss($fetch_url);
 602                         } else {
 603                                 if (!is_dir(SIMPLEPIE_CACHE_DIR)) {
 604                                         mkdir(SIMPLEPIE_CACHE_DIR);
 605                                 }
 606
 607                                 $rss = new SimplePie();
 608                                 $rss->set_useragent(SELF_USER_AGENT);
 609         #                       $rss->set_timeout(10);
 610                                 $rss->set_feed_url($fetch_url);
 611                                 $rss->set_output_encoding('UTF-8');
 612
 613                                 if (SIMPLEPIE_CACHE_IMAGES && $cache_images) {
 614
 615                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 616                                                 _debug("enabling image cache");
 617                                         }
 618
 619                                         $rss->set_image_handler("image.php", 'i');
 620                                 }
 621
 622                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 623                                         _debug("feed update interval (sec): " .
 624                                                 get_feed_update_interval($link, $feed)*60);
 625                                 }
 626
 627                                 if (is_dir(SIMPLEPIE_CACHE_DIR)) {
 628                                         $rss->set_cache_location(SIMPLEPIE_CACHE_DIR);
 629                                         $rss->set_cache_duration(get_feed_update_interval($link, $feed) * 60);
 630                                 }
 631
 632                                 $rss->init();
 633                         }
 634
 635                         if ($memcache && $rss) $memcache->add($obj_id, $rss, 0, 300);
 636                 }
 637
 638 //              print_r($rss);
 639
 640                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 641                         _debug("update_rss_feed: fetch done, parsing...");
 642                 }
 643
 644                 $feed = db_escape_string($feed);
 645
 646                 if ($update_method == 2) {
 647                         $fetch_ok = !$rss->error();
 648                 } else {
 649                         $fetch_ok = !!$rss;
 650                 }
 651
 652                 if ($fetch_ok) {
 653
 654                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 655                                 _debug("update_rss_feed: processing feed data...");
 656                         }
 657
 658 //                      db_query($link, "BEGIN");
 659
 660                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 661                                 FROM ttrss_feeds WHERE id = '$feed'");
 662
 663                         $registered_title = db_fetch_result($result, 0, "title");
 664                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 665                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 666
 667                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 668
 669                         if ($use_simplepie) {
 670                                 $site_url = $rss->get_link();
 671                         } else {
 672                                 $site_url = $rss->channel["link"];
 673                         }
 674
 675                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 676                                 _debug("update_rss_feed: checking favicon...");
 677                         }
 678
 679                         check_feed_favicon($site_url, $feed, $link);
 680
 681                         if (!$registered_title || $registered_title == "[Unknown]") {
 682
 683                                 if ($use_simplepie) {
 684                                         $feed_title = db_escape_string($rss->get_title());
 685                                 } else {
 686                                         $feed_title = db_escape_string($rss->channel["title"]);
 687                                 }
 688
 689                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 690                                         _debug("update_rss_feed: registering title: $feed_title");
 691                                 }
 692
 693                                 db_query($link, "UPDATE ttrss_feeds SET
 694                                         title = '$feed_title' WHERE id = '$feed'");
 695                         }
 696
 697                         // weird, weird Magpie
 698                         if (!$use_simplepie) {
 699                                 if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 700                         }
 701
 702                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 703                                 db_query($link, "UPDATE ttrss_feeds SET
 704                                         site_url = '$site_url' WHERE id = '$feed'");
 705                         }
 706
 707 //                      print "I: " . $rss->channel["image"]["url"];
 708
 709                         if (!$use_simplepie) {
 710                                 $icon_url = db_escape_string($rss->image["url"]);
 711                         } else {
 712                                 $icon_url = db_escape_string($rss->get_image_url());
 713                         }
 714
 715                         $icon_url = substr($icon_url, 0, 250);
 716
 717                         if ($icon_url && $orig_icon_url != $icon_url) {
 718                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 719                         }
 720
 721                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 722                                 _debug("update_rss_feed: loading filters...");
 723                         }
 724
 725                         $filters = load_filters($link, $feed, $owner_uid);
 726
 727                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 728                                 print_r($filters);
 729                         }
 730
 731                         if ($use_simplepie) {
 732                                 $iterator = $rss->get_items();
 733                         } else {
 734                                 $iterator = $rss->items;
 735                                 if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
 736                                 if (!$iterator || !is_array($iterator)) $iterator = $rss;
 737                         }
 738
 739                         if (!is_array($iterator)) {
 740                                 /* db_query($link, "UPDATE ttrss_feeds
 741                                         SET last_error = 'Parse error: can\'t find any articles.'
 742                                         WHERE id = '$feed'"); */
 743
 744                                 // clear any errors and mark feed as updated if fetched okay
 745                                 // even if it's blank
 746
 747                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 748                                         _debug("update_rss_feed: entry iterator is not an array, no articles?");
 749                                 }
 750
 751                                 db_query($link, "UPDATE ttrss_feeds
 752                                         SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 753
 754                                 return; // no articles
 755                         }
 756
 757                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 758                                 _debug("update_rss_feed: processing articles...");
 759                         }
 760
 761                         foreach ($iterator as $item) {
 762
 763                                 if ($_REQUEST['xdebug'] == 2) {
 764                                         print_r($item);
 765                                 }
 766
 767                                 if ($use_simplepie) {
 768                                         $entry_guid = $item->get_id();
 769                                         if (!$entry_guid) $entry_guid = $item->get_link();
 770                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
 771
 772                                 } else {
 773
 774                                         $entry_guid = $item["id"];
 775
 776                                         if (!$entry_guid) $entry_guid = $item["guid"];
 777                                         if (!$entry_guid) $entry_guid = $item["about"];
 778                                         if (!$entry_guid) $entry_guid = $item["link"];
 779                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
 780                                 }
 781
 782                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 783                                         _debug("update_rss_feed: guid $entry_guid");
 784                                 }
 785
 786                                 if (!$entry_guid) continue;
 787
 788                                 $entry_timestamp = "";
 789
 790                                 if ($use_simplepie) {
 791                                         $entry_timestamp = strtotime($item->get_date());
 792                                 } else {
 793                                         $rss_2_date = $item['pubdate'];
 794                                         $rss_1_date = $item['dc']['date'];
 795                                         $atom_date = $item['issued'];
 796                                         if (!$atom_date) $atom_date = $item['updated'];
 797
 798                                         if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 799                                         if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 800                                         if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 801
 802                                 }
 803
 804                                 if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
 805                                         $entry_timestamp = time();
 806                                         $no_orig_date = 'true';
 807                                 } else {
 808                                         $no_orig_date = 'false';
 809                                 }
 810
 811                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 812
 813                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 814                                         _debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
 815                                 }
 816
 817                                 if ($use_simplepie) {
 818                                         $entry_title = $item->get_title();
 819                                 } else {
 820                                         $entry_title = trim(strip_tags($item["title"]));
 821                                 }
 822
 823                                 if ($use_simplepie) {
 824                                         $entry_link = $item->get_link();
 825                                 } else {
 826                                         // strange Magpie workaround
 827                                         $entry_link = $item["link_"];
 828                                         if (!$entry_link) $entry_link = $item["link"];
 829                                 }
 830
 831                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 832                                         _debug("update_rss_feed: title $entry_title");
 833                                 }
 834
 835                                 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
 836
 837                                 $entry_link = strip_tags($entry_link);
 838
 839                                 if ($use_simplepie) {
 840                                         $entry_content = $item->get_content();
 841                                         if (!$entry_content) $entry_content = $item->get_description();
 842                                 } else {
 843                                         $entry_content = $item["content:escaped"];
 844
 845                                         if (!$entry_content) $entry_content = $item["content:encoded"];
 846                                         if (!$entry_content) $entry_content = $item["content"]["encoded"];
 847                                         if (!$entry_content) $entry_content = $item["content"];
 848
 849                                         // Magpie bugs are getting ridiculous
 850                                         if (trim($entry_content) == "Array") $entry_content = false;
 851
 852                                         if (!$entry_content) $entry_content = $item["atom_content"];
 853                                         if (!$entry_content) $entry_content = $item["summary"];
 854
 855                                         if (!$entry_content ||
 856                                                 strlen($entry_content) < strlen($item["description"])) {
 857                                                         $entry_content = $item["description"];
 858                                         };
 859
 860                                         // WTF
 861                                         if (is_array($entry_content)) {
 862                                                 $entry_content = $entry_content["encoded"];
 863                                                 if (!$entry_content) $entry_content = $entry_content["escaped"];
 864                                         }
 865                                 }
 866
 867                                 if ($_REQUEST["xdebug"] == 2) {
 868                                         print "update_rss_feed: content: ";
 869                                         print_r(htmlspecialchars($entry_content));
 870                                 }
 871
 872                                 $entry_content_unescaped = $entry_content;
 873
 874                                 if ($use_simplepie) {
 875                                         $entry_comments = strip_tags($item->data["comments"]);
 876                                         if ($item->get_author()) {
 877                                                 $entry_author_item = $item->get_author();
 878                                                 $entry_author = $entry_author_item->get_name();
 879                                                 if (!$entry_author) $entry_author = $entry_author_item->get_email();
 880
 881                                                 $entry_author = db_escape_string($entry_author);
 882                                         }
 883                                 } else {
 884                                         $entry_comments = strip_tags($item["comments"]);
 885
 886                                         $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
 887
 888                                         if ($item['author']) {
 889
 890                                                 if (is_array($item['author'])) {
 891
 892                                                         if (!$entry_author) {
 893                                                                 $entry_author = db_escape_string(strip_tags($item['author']['name']));
 894                                                         }
 895
 896                                                         if (!$entry_author) {
 897                                                                 $entry_author = db_escape_string(strip_tags($item['author']['email']));
 898                                                         }
 899                                                 }
 900
 901                                                 if (!$entry_author) {
 902                                                         $entry_author = db_escape_string(strip_tags($item['author']));
 903                                                 }
 904                                         }
 905                                 }
 906
 907                                 if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
 908
 909                                 $entry_guid = db_escape_string(strip_tags($entry_guid));
 910                                 $entry_guid = mb_substr($entry_guid, 0, 250);
 911
 912                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 913                                         WHERE guid = '$entry_guid'");
 914
 915                                 $entry_content = db_escape_string($entry_content, false);
 916
 917                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 918
 919                                 $entry_title = db_escape_string($entry_title);
 920                                 $entry_link = db_escape_string($entry_link);
 921                                 $entry_comments = mb_substr(db_escape_string($entry_comments), 0, 250);
 922                                 $entry_author = mb_substr($entry_author, 0, 250);
 923
 924                                 if ($use_simplepie) {
 925                                         $num_comments = 0; #FIXME#
 926                                 } else {
 927                                         $num_comments = db_escape_string($item["slash"]["comments"]);
 928                                 }
 929
 930                                 if (!$num_comments) $num_comments = 0;
 931
 932                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 933                                         _debug("update_rss_feed: looking for tags [1]...");
 934                                 }
 935
 936                                 // parse <category> entries into tags
 937
 938                                 $additional_tags = array();
 939
 940                                 if ($use_simplepie) {
 941
 942                                         $additional_tags_src = $item->get_categories();
 943
 944                                         if (is_array($additional_tags_src)) {
 945                                                 foreach ($additional_tags_src as $tobj) {
 946                                                         array_push($additional_tags, $tobj->get_term());
 947                                                 }
 948                                         }
 949
 950                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 951                                                 _debug("update_rss_feed: category tags:");
 952                                                 print_r($additional_tags);
 953                                         }
 954
 955                                 } else {
 956
 957                                         $t_ctr = $item['category#'];
 958
 959                                         if ($t_ctr == 0) {
 960                                                 $additional_tags = array();
 961                                         } else if ($t_ctr > 0) {
 962                                                 $additional_tags = array($item['category']);
 963
 964                                                 if ($item['category@term']) {
 965                                                         array_push($additional_tags, $item['category@term']);
 966                                                 }
 967
 968                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
 969                                                         if ($item["category#$i"]) {
 970                                                                 array_push($additional_tags, $item["category#$i"]);
 971                                                         }
 972
 973                                                         if ($item["category#$i@term"]) {
 974                                                                 array_push($additional_tags, $item["category#$i@term"]);
 975                                                         }
 976                                                 }
 977                                         }
 978
 979                                         // parse <dc:subject> elements
 980
 981                                         $t_ctr = $item['dc']['subject#'];
 982
 983                                         if ($t_ctr > 0) {
 984                                                 array_push($additional_tags, $item['dc']['subject']);
 985
 986                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
 987                                                         if ($item['dc']["subject#$i"]) {
 988                                                                 array_push($additional_tags, $item['dc']["subject#$i"]);
 989                                                         }
 990                                                 }
 991                                         }
 992                                 }
 993
 994                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 995                                         _debug("update_rss_feed: looking for tags [2]...");
 996                                 }
 997
 998                                 /* taaaags */
 999                                 // <a href="..." rel="tag">Xorg</a>, //
1000
1001                                 $entry_tags = null;
1002
1003                                 preg_match_all("/<a.*?rel=['\"]tag['\"].*?\>([^<]+)<\/a>/i",
1004                                         $entry_content_unescaped, $entry_tags);
1005
1006                                 $entry_tags = $entry_tags[1];
1007
1008                                 $entry_tags = array_merge($entry_tags, $additional_tags);
1009                                 $entry_tags = array_unique($entry_tags);
1010
1011                                 for ($i = 0; $i < count($entry_tags); $i++)
1012                                         $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
1013
1014                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1015                                         _debug("update_rss_feed: unfiltered tags found:");
1016                                         print_r($entry_tags);
1017                                 }
1018
1019                                 # sanitize content
1020
1021                                 $entry_content = sanitize_article_content($entry_content);
1022                                 $entry_title = sanitize_article_content($entry_title);
1023
1024                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1025                                         _debug("update_rss_feed: done collecting data [TITLE:$entry_title]");
1026                                 }
1027
1028                                 db_query($link, "BEGIN");
1029
1030                                 if (db_num_rows($result) == 0) {
1031
1032                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1033                                                 _debug("update_rss_feed: base guid not found");
1034                                         }
1035
1036                                         // base post entry does not exist, create it
1037
1038                                         $result = db_query($link,
1039                                                 "INSERT INTO ttrss_entries
1040                                                         (title,
1041                                                         guid,
1042                                                         link,
1043                                                         updated,
1044                                                         content,
1045                                                         content_hash,
1046                                                         no_orig_date,
1047                                                         date_updated,
1048                                                         date_entered,
1049                                                         comments,
1050                                                         num_comments,
1051                                                         author)
1052                                                 VALUES
1053                                                         ('$entry_title',
1054                                                         '$entry_guid',
1055                                                         '$entry_link',
1056                                                         '$entry_timestamp_fmt',
1057                                                         '$entry_content',
1058                                                         '$content_hash',
1059                                                         $no_orig_date,
1060                                                         NOW(),
1061                                                         NOW(),
1062                                                         '$entry_comments',
1063                                                         '$num_comments',
1064                                                         '$entry_author')");
1065                                 } else {
1066                                         // we keep encountering the entry in feeds, so we need to
1067                                         // update date_updated column so that we don't get horrible
1068                                         // dupes when the entry gets purged and reinserted again e.g.
1069                                         // in the case of SLOW SLOW OMG SLOW updating feeds
1070
1071                                         $base_entry_id = db_fetch_result($result, 0, "id");
1072
1073                                         db_query($link, "UPDATE ttrss_entries SET date_updated = NOW()
1074                                                 WHERE id = '$base_entry_id'");
1075                                 }
1076
1077                                 // now it should exist, if not - bad luck then
1078
1079                                 $result = db_query($link, "SELECT
1080                                                 id,content_hash,no_orig_date,title,
1081                                                 ".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
1082                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
1083                                                 num_comments
1084                                         FROM
1085                                                 ttrss_entries
1086                                         WHERE guid = '$entry_guid'");
1087
1088                                 $entry_ref_id = 0;
1089                                 $entry_int_id = 0;
1090
1091                                 if (db_num_rows($result) == 1) {
1092
1093                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1094                                                 _debug("update_rss_feed: base guid found, checking for user record");
1095                                         }
1096
1097                                         // this will be used below in update handler
1098                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
1099                                         $orig_title = db_fetch_result($result, 0, "title");
1100                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
1101                                         $orig_date_updated = strtotime(db_fetch_result($result,
1102                                                 0, "date_updated"));
1103
1104                                         $ref_id = db_fetch_result($result, 0, "id");
1105                                         $entry_ref_id = $ref_id;
1106
1107                                         // check for user post link to main table
1108
1109                                         // do we allow duplicate posts with same GUID in different feeds?
1110                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
1111                                                 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
1112                                         } else {
1113                                                 $dupcheck_qpart = "";
1114                                         }
1115
1116                                         /* Collect article tags here so we could filter by them: */
1117
1118                                         $article_filters = get_article_filters($filters, $entry_title,
1119                                                 $entry_content, $entry_link, $entry_timestamp, $entry_author,
1120                                                 $entry_tags);
1121
1122                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1123                                                 _debug("update_rss_feed: article filters: ");
1124                                                 if (count($article_filters) != 0) {
1125                                                         print_r($article_filters);
1126                                                 }
1127                                         }
1128
1129                                         if (find_article_filter($article_filters, "filter")) {
1130                                                 db_query($link, "COMMIT"); // close transaction in progress
1131                                                 continue;
1132                                         }
1133
1134                                         $score = calculate_article_score($article_filters);
1135
1136                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1137                                                 _debug("update_rss_feed: initial score: $score");
1138                                         }
1139
1140                                         $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
1141                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
1142                                                         $dupcheck_qpart";
1143
1144 //                                      if ($_REQUEST["xdebug"]) print "$query\n";
1145
1146                                         $result = db_query($link, $query);
1147
1148                                         // okay it doesn't exist - create user entry
1149                                         if (db_num_rows($result) == 0) {
1150
1151                                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1152                                                         _debug("update_rss_feed: user record not found, creating...");
1153                                                 }
1154
1155                                                 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
1156                                                         $unread = 'true';
1157                                                         $last_read_qpart = 'NULL';
1158                                                 } else {
1159                                                         $unread = 'false';
1160                                                         $last_read_qpart = 'NOW()';
1161                                                 }
1162
1163                                                 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
1164                                                         $marked = 'true';
1165                                                 } else {
1166                                                         $marked = 'false';
1167                                                 }
1168
1169                                                 if (find_article_filter($article_filters, 'publish')) {
1170                                                         $published = 'true';
1171                                                 } else {
1172                                                         $published = 'false';
1173                                                 }
1174
1175                                                 $result = db_query($link,
1176                                                         "INSERT INTO ttrss_user_entries
1177                                                                 (ref_id, owner_uid, feed_id, unread, last_read, marked,
1178                                                                         published, score, tag_cache, label_cache)
1179                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
1180                                                                 $last_read_qpart, $marked, $published, '$score', '', '')");
1181
1182                                                 $result = db_query($link,
1183                                                         "SELECT int_id FROM ttrss_user_entries WHERE
1184                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
1185                                                                 feed_id = '$feed' LIMIT 1");
1186
1187                                                 if (db_num_rows($result) == 1) {
1188                                                         $entry_int_id = db_fetch_result($result, 0, "int_id");
1189                                                 }
1190                                         } else {
1191                                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1192                                                         _debug("update_rss_feed: user record FOUND");
1193                                                 }
1194
1195                                                 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
1196                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
1197                                         }
1198
1199                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1200                                                 _debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
1201                                         }
1202
1203                                         $post_needs_update = false;
1204
1205                                         if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE", $owner_uid, false) &&
1206                                                 ($content_hash != $orig_content_hash)) {
1207 //                                              print "<!-- [$entry_title] $content_hash vs $orig_content_hash -->";
1208                                                 $post_needs_update = true;
1209                                         }
1210
1211                                         if (db_escape_string($orig_title) != $entry_title) {
1212                                                 $post_needs_update = true;
1213                                         }
1214
1215                                         if ($orig_num_comments != $num_comments) {
1216                                                 $post_needs_update = true;
1217                                         }
1218
1219 //                                      this doesn't seem to be very reliable
1220 //
1221 //                                      if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
1222 //                                              $post_needs_update = true;
1223 //                                      }
1224
1225                                         // if post needs update, update it and mark all user entries
1226                                         // linking to this post as updated
1227                                         if ($post_needs_update) {
1228
1229                                                 if (defined('DAEMON_EXTENDED_DEBUG')) {
1230                                                         _debug("update_rss_feed: post $entry_guid needs update...");
1231                                                 }
1232
1233 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
1234
1235                                                 db_query($link, "UPDATE ttrss_entries
1236                                                         SET title = '$entry_title', content = '$entry_content',
1237                                                                 content_hash = '$content_hash',
1238                                                                 num_comments = '$num_comments'
1239                                                         WHERE id = '$ref_id'");
1240
1241                                                 if ($mark_unread_on_update) {
1242                                                         db_query($link, "UPDATE ttrss_user_entries
1243                                                                 SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
1244                                                 } else {
1245                                                         db_query($link, "UPDATE ttrss_user_entries
1246                                                                 SET last_read = null WHERE ref_id = '$ref_id' AND unread = false");
1247                                                 }
1248
1249                                         }
1250                                 }
1251
1252                                 db_query($link, "COMMIT");
1253
1254                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1255                                         _debug("update_rss_feed: assigning labels...");
1256                                 }
1257
1258                                 assign_article_to_labels($link, $entry_ref_id, $article_filters,
1259                                         $owner_uid);
1260
1261                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1262                                         _debug("update_rss_feed: looking for enclosures...");
1263                                 }
1264
1265                                 // enclosures
1266
1267                                 $enclosures = array();
1268
1269                                 if ($use_simplepie) {
1270                                         $encs = $item->get_enclosures();
1271
1272                                         if (is_array($encs)) {
1273                                                 foreach ($encs as $e) {
1274                                                         $e_item = array(
1275                                                                 $e->link, $e->type, $e->length);
1276
1277                                                         array_push($enclosures, $e_item);
1278                                                 }
1279                                         }
1280
1281                                 } else {
1282                                         // <enclosure>
1283
1284                                         $e_ctr = $item['enclosure#'];
1285
1286                                         if ($e_ctr > 0) {
1287                                                 $e_item = array($item['enclosure@url'],
1288                                                         $item['enclosure@type'],
1289                                                         $item['enclosure@length']);
1290
1291                                                 array_push($enclosures, $e_item);
1292
1293                                                 for ($i = 0; $i <= $e_ctr; $i++ ) {
1294
1295                                                         if ($item["enclosure#$i@url"]) {
1296                                                                 $e_item = array($item["enclosure#$i@url"],
1297                                                                         $item["enclosure#$i@type"],
1298                                                                         $item["enclosure#$i@length"]);
1299                                                                 array_push($enclosures, $e_item);
1300                                                         }
1301                                                 }
1302                                         }
1303
1304                                         // <media:content>
1305                                         // can there be many of those? yes -fox
1306
1307                                         $m_ctr = $item['media']['content#'];
1308
1309                                         if ($m_ctr > 0) {
1310                                                 $e_item = array($item['media']['content@url'],
1311                                                         $item['media']['content@medium'],
1312                                                         $item['media']['content@length']);
1313
1314                                                 array_push($enclosures, $e_item);
1315
1316                                                 for ($i = 0; $i <= $m_ctr; $i++ ) {
1317
1318                                                         if ($item["media"]["content#$i@url"]) {
1319                                                                 $e_item = array($item["media"]["content#$i@url"],
1320                                                                         $item["media"]["content#$i@medium"],
1321                                                                         $item["media"]["content#$i@length"]);
1322                                                                 array_push($enclosures, $e_item);
1323                                                         }
1324                                                 }
1325
1326                                         }
1327                                 }
1328
1329
1330                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1331                                         _debug("update_rss_feed: article enclosures:");
1332                                         print_r($enclosures);
1333                                 }
1334
1335                                 db_query($link, "BEGIN");
1336
1337                                 foreach ($enclosures as $enc) {
1338                                         $enc_url = db_escape_string($enc[0]);
1339                                         $enc_type = db_escape_string($enc[1]);
1340                                         $enc_dur = db_escape_string($enc[2]);
1341
1342                                         $result = db_query($link, "SELECT id FROM ttrss_enclosures
1343                                                 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1344
1345                                         if (db_num_rows($result) == 0) {
1346                                                 db_query($link, "INSERT INTO ttrss_enclosures
1347                                                         (content_url, content_type, title, duration, post_id) VALUES
1348                                                         ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
1349                                         }
1350                                 }
1351
1352                                 db_query($link, "COMMIT");
1353
1354                                 // check for manual tags (we have to do it here since they're loaded from filters)
1355
1356                                 foreach ($article_filters as $f) {
1357                                         if ($f[0] == "tag") {
1358
1359                                                 $manual_tags = trim_array(split(",", $f[1]));
1360
1361                                                 foreach ($manual_tags as $tag) {
1362                                                         if (tag_is_valid($tag)) {
1363                                                                 array_push($entry_tags, $tag);
1364                                                         }
1365                                                 }
1366                                         }
1367                                 }
1368
1369                                 // Skip boring tags
1370
1371                                 $boring_tags = trim_array(split(",", mb_strtolower(get_pref($link,
1372                                         'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1373
1374                                 $filtered_tags = array();
1375                                 $tags_to_cache = array();
1376
1377                                 if ($entry_tags && is_array($entry_tags)) {
1378                                         foreach ($entry_tags as $tag) {
1379                                                 if (array_search($tag, $boring_tags) === false) {
1380                                                         array_push($filtered_tags, $tag);
1381                                                 }
1382                                         }
1383                                 }
1384
1385                                 $filtered_tags = array_unique($filtered_tags);
1386
1387                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1388                                         _debug("update_rss_feed: filtered article tags:");
1389                                         print_r($filtered_tags);
1390                                 }
1391
1392                                 // Save article tags in the database
1393
1394                                 if (count($filtered_tags) > 0) {
1395
1396                                         db_query($link, "BEGIN");
1397
1398                                         foreach ($filtered_tags as $tag) {
1399
1400                                                 $tag = sanitize_tag($tag);
1401                                                 $tag = db_escape_string($tag);
1402
1403                                                 if (!tag_is_valid($tag)) continue;
1404
1405                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
1406                                                         WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1407                                                         owner_uid = '$owner_uid' LIMIT 1");
1408
1409                                                         if ($result && db_num_rows($result) == 0) {
1410
1411                                                                 db_query($link, "INSERT INTO ttrss_tags
1412                                                                         (owner_uid,tag_name,post_int_id)
1413                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
1414                                                         }
1415
1416                                                 array_push($tags_to_cache, $tag);
1417                                         }
1418
1419                                         /* update the cache */
1420
1421                                         $tags_to_cache = array_unique($tags_to_cache);
1422
1423                                         $tags_str = db_escape_string(join(",", $tags_to_cache));
1424
1425                                         db_query($link, "UPDATE ttrss_user_entries
1426                                                 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1427                                                 AND owner_uid = $owner_uid");
1428
1429                                         db_query($link, "COMMIT");
1430                                 }
1431
1432                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1433                                         _debug("update_rss_feed: article processed");
1434                                 }
1435                         }
1436
1437                         if (!$last_updated) {
1438                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1439                                         _debug("update_rss_feed: new feed, catching it up...");
1440                                 }
1441                                 catchup_feed($link, $feed, false, $owner_uid);
1442                         }
1443
1444                         purge_feed($link, $feed, 0);
1445
1446                         db_query($link, "UPDATE ttrss_feeds
1447                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1448
1449 //                      db_query($link, "COMMIT");
1450
1451                 } else {
1452
1453                         if ($use_simplepie) {
1454                                 $error_msg = mb_substr($rss->error(), 0, 250);
1455                         } else {
1456                                 $error_msg = mb_substr(magpie_error(), 0, 250);
1457                         }
1458
1459                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1460                                 _debug("update_rss_feed: error fetching feed: $error_msg");
1461                         }
1462
1463                         $error_msg = db_escape_string($error_msg);
1464
1465                         db_query($link,
1466                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1467                                         last_updated = NOW() WHERE id = '$feed'");
1468                 }
1469
1470                 if ($use_simplepie) {
1471                         unset($rss);
1472                 }
1473
1474                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1475                         _debug("update_rss_feed: done");
1476                 }
1477
1478         }
1479
1480         function print_select($id, $default, $values, $attributes = "") {
1481                 print "<select name=\"$id\" id=\"$id\" $attributes>";
1482                 foreach ($values as $v) {
1483                         if ($v == $default)
1484                                 $sel = "selected=\"1\"";
1485                          else
1486                                 $sel = "";
1487
1488                         print "<option value=\"$v\" $sel>$v</option>";
1489                 }
1490                 print "</select>";
1491         }
1492
1493         function print_select_hash($id, $default, $values, $attributes = "") {
1494                 print "<select name=\"$id\" id='$id' $attributes>";
1495                 foreach (array_keys($values) as $v) {
1496                         if ($v == $default)
1497                                 $sel = 'selected="selected"';
1498                          else
1499                                 $sel = "";
1500
1501                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
1502                 }
1503
1504                 print "</select>";
1505         }
1506
1507         function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1508                 $matches = array();
1509
1510                 if ($filters["title"]) {
1511                         foreach ($filters["title"] as $filter) {
1512                                 $reg_exp = $filter["reg_exp"];
1513                                 $inverse = $filter["inverse"];
1514                                 if ((!$inverse && @preg_match("/$reg_exp/i", $title)) ||
1515                                                 ($inverse && !@preg_match("/$reg_exp/i", $title))) {
1516
1517                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1518                                 }
1519                         }
1520                 }
1521
1522                 if ($filters["content"]) {
1523                         foreach ($filters["content"] as $filter) {
1524                                 $reg_exp = $filter["reg_exp"];
1525                                 $inverse = $filter["inverse"];
1526
1527                                 if ((!$inverse && @preg_match("/$reg_exp/i", $content)) ||
1528                                                 ($inverse && !@preg_match("/$reg_exp/i", $content))) {
1529
1530                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1531                                 }
1532                         }
1533                 }
1534
1535                 if ($filters["both"]) {
1536                         foreach ($filters["both"] as $filter) {
1537                                 $reg_exp = $filter["reg_exp"];
1538                                 $inverse = $filter["inverse"];
1539
1540                                 if ($inverse) {
1541                                         if (!@preg_match("/$reg_exp/i", $title) && !preg_match("/$reg_exp/i", $content)) {
1542                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1543                                         }
1544                                 } else {
1545                                         if (@preg_match("/$reg_exp/i", $title) || preg_match("/$reg_exp/i", $content)) {
1546                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1547                                         }
1548                                 }
1549                         }
1550                 }
1551
1552                 if ($filters["link"]) {
1553                         $reg_exp = $filter["reg_exp"];
1554                         foreach ($filters["link"] as $filter) {
1555                                 $reg_exp = $filter["reg_exp"];
1556                                 $inverse = $filter["inverse"];
1557
1558                                 if ((!$inverse && @preg_match("/$reg_exp/i", $link)) ||
1559                                                 ($inverse && !@preg_match("/$reg_exp/i", $link))) {
1560
1561                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1562                                 }
1563                         }
1564                 }
1565
1566                 if ($filters["date"]) {
1567                         $reg_exp = $filter["reg_exp"];
1568                         foreach ($filters["date"] as $filter) {
1569                                 $date_modifier = $filter["filter_param"];
1570                                 $inverse = $filter["inverse"];
1571                                 $check_timestamp = strtotime($filter["reg_exp"]);
1572
1573                                 # no-op when timestamp doesn't parse to prevent misfires
1574
1575                                 if ($check_timestamp) {
1576                                         $match_ok = false;
1577
1578                                         if ($date_modifier == "before" && $timestamp < $check_timestamp ||
1579                                                 $date_modifier == "after" && $timestamp > $check_timestamp) {
1580                                                         $match_ok = true;
1581                                         }
1582
1583                                         if ($inverse) $match_ok = !$match_ok;
1584
1585                                         if ($match_ok) {
1586                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1587                                         }
1588                                 }
1589                         }
1590                 }
1591
1592                 if ($filters["author"]) {
1593                         foreach ($filters["author"] as $filter) {
1594                                 $reg_exp = $filter["reg_exp"];
1595                                 $inverse = $filter["inverse"];
1596                                 if ((!$inverse && @preg_match("/$reg_exp/i", $author)) ||
1597                                                 ($inverse && !@preg_match("/$reg_exp/i", $author))) {
1598
1599                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1600                                 }
1601                         }
1602                 }
1603
1604                 if ($filters["tag"]) {
1605
1606                         $tag_string = join(",", $tags);
1607
1608                         foreach ($filters["tag"] as $filter) {
1609                                 $reg_exp = $filter["reg_exp"];
1610                                 $inverse = $filter["inverse"];
1611
1612                                 if ((!$inverse && @preg_match("/$reg_exp/i", $tag_string)) ||
1613                                                 ($inverse && !@preg_match("/$reg_exp/i", $tag_string))) {
1614
1615                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1616                                 }
1617                         }
1618                 }
1619
1620
1621                 return $matches;
1622         }
1623
1624         function find_article_filter($filters, $filter_name) {
1625                 foreach ($filters as $f) {
1626                         if ($f[0] == $filter_name) {
1627                                 return $f;
1628                         };
1629                 }
1630                 return false;
1631         }
1632
1633         function calculate_article_score($filters) {
1634                 $score = 0;
1635
1636                 foreach ($filters as $f) {
1637                         if ($f[0] == "score") {
1638                                 $score += $f[1];
1639                         };
1640                 }
1641                 return $score;
1642         }
1643
1644         function assign_article_to_labels($link, $id, $filters, $owner_uid) {
1645                 foreach ($filters as $f) {
1646                         if ($f[0] == "label") {
1647                                 label_add_article($link, $id, $f[1], $owner_uid);
1648                         };
1649                 }
1650         }
1651
1652         function getmicrotime() {
1653                 list($usec, $sec) = explode(" ",microtime());
1654                 return ((float)$usec + (float)$sec);
1655         }
1656
1657         function print_radio($id, $default, $true_is, $values, $attributes = "") {
1658                 foreach ($values as $v) {
1659
1660                         if ($v == $default)
1661                                 $sel = "checked";
1662                          else
1663                                 $sel = "";
1664
1665                         if ($v == $true_is) {
1666                                 $sel .= " value=\"1\"";
1667                         } else {
1668                                 $sel .= " value=\"0\"";
1669                         }
1670
1671                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
1672                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
1673
1674                 }
1675         }
1676
1677         function initialize_user_prefs($link, $uid, $profile = false) {
1678
1679                 $uid = db_escape_string($uid);
1680
1681                 if (!$profile) {
1682                         $profile = "NULL";
1683                         $profile_qpart = "AND profile IS NULL";
1684                 } else {
1685                         $profile_qpart = "AND profile = '$profile'";
1686                 }
1687
1688                 if (get_schema_version($link) < 63) $profile_qpart = "";
1689
1690                 db_query($link, "BEGIN");
1691
1692                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
1693
1694                 $u_result = db_query($link, "SELECT pref_name
1695                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
1696
1697                 $active_prefs = array();
1698
1699                 while ($line = db_fetch_assoc($u_result)) {
1700                         array_push($active_prefs, $line["pref_name"]);
1701                 }
1702
1703                 while ($line = db_fetch_assoc($result)) {
1704                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
1705 //                              print "adding " . $line["pref_name"] . "<br>";
1706
1707                                 if (get_schema_version($link) < 63) {
1708                                         db_query($link, "INSERT INTO ttrss_user_prefs
1709                                                 (owner_uid,pref_name,value) VALUES
1710                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
1711
1712                                 } else {
1713                                         db_query($link, "INSERT INTO ttrss_user_prefs
1714                                                 (owner_uid,pref_name,value, profile) VALUES
1715                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
1716                                 }
1717
1718                         }
1719                 }
1720
1721                 db_query($link, "COMMIT");
1722
1723         }
1724
1725         function lookup_user_id($link, $user) {
1726
1727                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE
1728                         login = '$login'");
1729
1730                 if (db_num_rows($result) == 1) {
1731                         return db_fetch_result($result, 0, "id");
1732                 } else {
1733                         return false;
1734                 }
1735         }
1736
1737         function http_authenticate_user($link) {
1738
1739 //              error_log("http_authenticate_user: ".$_SERVER["PHP_AUTH_USER"]."\n", 3, '/tmp/tt-rss.log');
1740
1741                 if (!$_SERVER["PHP_AUTH_USER"]) {
1742
1743                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1744                         header('HTTP/1.0 401 Unauthorized');
1745                         exit;
1746
1747                 } else {
1748                         $auth_result = authenticate_user($link,
1749                                 $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
1750
1751                         if (!$auth_result) {
1752                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1753                                 header('HTTP/1.0 401 Unauthorized');
1754                                 exit;
1755                         }
1756                 }
1757
1758                 return true;
1759         }
1760
1761         function get_ssl_certificate_id() {
1762                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
1763                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
1764                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
1765                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
1766                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
1767                 }
1768                 return "";
1769         }
1770
1771         function get_login_by_ssl_certificate($link) {
1772
1773                 $cert_serial = db_escape_string(get_ssl_certificate_id());
1774
1775                 if ($cert_serial) {
1776                         $result = db_query($link, "SELECT login FROM ttrss_user_prefs, ttrss_users
1777                                 WHERE pref_name = 'SSL_CERT_SERIAL' AND value = '$cert_serial' AND
1778                                 owner_uid = ttrss_users.id");
1779
1780                         if (db_num_rows($result) != 0) {
1781                                 return db_escape_string(db_fetch_result($result, 0, "login"));
1782                         }
1783                 }
1784
1785                 return "";
1786         }
1787
1788         function get_remote_user($link) {
1789
1790                 if (defined('ALLOW_REMOTE_USER_AUTH') && ALLOW_REMOTE_USER_AUTH) {
1791                         return db_escape_string($_SERVER["REMOTE_USER"]);
1792                 }
1793
1794                 return db_escape_string(get_login_by_ssl_certificate($link));
1795         }
1796
1797         function get_remote_fakepass($link) {
1798                 if (get_remote_user($link))
1799                         return "******";
1800                 else
1801                         return "";
1802         }
1803
1804         function authenticate_user($link, $login, $password, $force_auth = false) {
1805
1806                 if (!SINGLE_USER_MODE) {
1807
1808                         $pwd_hash1 = encrypt_password($password);
1809                         $pwd_hash2 = encrypt_password($password, $login);
1810                         $login = db_escape_string($login);
1811
1812                         $remote_user = get_remote_user($link);
1813
1814                         if ($remote_user && $login != "admin") {
1815
1816                                 $login = $remote_user;
1817
1818                                 $query = "SELECT id,login,access_level,pwd_hash
1819                     FROM ttrss_users WHERE
1820                                         login = '$login'";
1821
1822                         } else {
1823                                 $query = "SELECT id,login,access_level,pwd_hash
1824                     FROM ttrss_users WHERE
1825                                         login = '$login' AND (pwd_hash = '$pwd_hash1' OR
1826                                                 pwd_hash = '$pwd_hash2')";
1827                         }
1828
1829                         $result = db_query($link, $query);
1830
1831                         if (db_num_rows($result) == 1) {
1832                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
1833                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
1834                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
1835
1836                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
1837                                         $_SESSION["uid"]);
1838
1839                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1840                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
1841
1842                                 $_SESSION["last_version_check"] = time();
1843
1844                                 initialize_user_prefs($link, $_SESSION["uid"]);
1845
1846                                 return true;
1847                         }
1848
1849                         return false;
1850
1851                 } else {
1852
1853                         $_SESSION["uid"] = 1;
1854                         $_SESSION["name"] = "admin";
1855
1856                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1857
1858                         initialize_user_prefs($link, $_SESSION["uid"]);
1859
1860                         return true;
1861                 }
1862         }
1863
1864         function make_password($length = 8) {
1865
1866                 $password = "";
1867                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
1868
1869         $i = 0;
1870
1871                 while ($i < $length) {
1872                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
1873
1874                         if (!strstr($password, $char)) {
1875                                 $password .= $char;
1876                                 $i++;
1877                         }
1878                 }
1879                 return $password;
1880         }
1881
1882         // this is called after user is created to initialize default feeds, labels
1883         // or whatever else
1884
1885         // user preferences are checked on every login, not here
1886
1887         function initialize_user($link, $uid) {
1888
1889                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1890                         values ('$uid', 'Tiny Tiny RSS: New Releases',
1891                         'http://tt-rss.org/releases.rss')");
1892
1893                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1894                         values ('$uid', 'Tiny Tiny RSS: Forum',
1895                                 'http://tt-rss.org/forum/rss.php')");
1896         }
1897
1898         function logout_user() {
1899                 session_destroy();
1900                 if (isset($_COOKIE[session_name()])) {
1901                    setcookie(session_name(), '', time()-42000, '/');
1902                 }
1903         }
1904
1905         function get_script_urlpath() {
1906                 return preg_replace('/\/[^\/]*$/', "", $_SERVER["REQUEST_URI"]);
1907         }
1908
1909         function validate_session($link) {
1910                 if (SINGLE_USER_MODE) return true;
1911
1912                 $check_ip = $_SESSION['ip_address'];
1913
1914                 switch (SESSION_CHECK_ADDRESS) {
1915                 case 0:
1916                         $check_ip = '';
1917                         break;
1918                 case 1:
1919                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
1920                         break;
1921                 case 2:
1922                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
1923                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
1924                         break;
1925                 };
1926
1927                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) {
1928                         $_SESSION["login_error_msg"] =
1929                                 __("Session failed to validate (incorrect IP)");
1930                         return false;
1931                 }
1932
1933                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
1934                         return false;
1935
1936                 if ($_SESSION["uid"]) {
1937
1938                         $result = db_query($link,
1939                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
1940
1941                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
1942
1943                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
1944                                 return false;
1945                         }
1946                 }
1947
1948 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
1949
1950                         //print_r($_SESSION);
1951
1952                         if (time() > $_SESSION["cookie_lifetime"]) {
1953                                 return false;
1954                         }
1955                 } */
1956
1957                 return true;
1958         }
1959
1960         function login_sequence($link, $mobile = false) {
1961                 if (!SINGLE_USER_MODE) {
1962
1963                         $login_action = $_POST["login_action"];
1964
1965                         # try to authenticate user if called from login form
1966                         if ($login_action == "do_login") {
1967                                 $login = $_POST["login"];
1968                                 $password = $_POST["password"];
1969                                 $remember_me = $_POST["remember_me"];
1970
1971                                 if (authenticate_user($link, $login, $password)) {
1972                                         $_POST["password"] = "";
1973
1974                                         $_SESSION["language"] = $_POST["language"];
1975                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
1976                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
1977
1978                                         if ($_POST["profile"]) {
1979
1980                                                 $profile = db_escape_string($_POST["profile"]);
1981
1982                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
1983                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
1984
1985                                                 if (db_num_rows($result) != 0) {
1986                                                         $_SESSION["profile"] = $profile;
1987                                                         $_SESSION["prefs_cache"] = array();
1988                                                 }
1989                                         }
1990
1991                                         if ($_REQUEST['return']) {
1992                                                 header("Location: " . $_REQUEST['return']);
1993                                         } else {
1994                                                 header("Location: " . $_SERVER["REQUEST_URI"]);
1995                                         }
1996
1997                                         exit;
1998
1999                                         return;
2000                                 } else {
2001                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
2002                                 }
2003                         }
2004
2005                         if (!$_SESSION["uid"] || !validate_session($link)) {
2006
2007                                 if (get_remote_user($link) && AUTO_LOGIN) {
2008                                     authenticate_user($link, get_remote_user($link), null);
2009                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
2010                                 } else {
2011                                     render_login_form($link, $mobile);
2012                                     //header("Location: login.php");
2013                                     exit;
2014                                 }
2015                         } else {
2016                                 /* bump login timestamp */
2017                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
2018                                         $_SESSION["uid"]);
2019
2020                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
2021                                         setcookie("ttrss_lang", $_SESSION["language"],
2022                                                 time() + SESSION_COOKIE_LIFETIME);
2023                                 }
2024                         }
2025
2026                 } else {
2027                         return authenticate_user($link, "admin", null);
2028                 }
2029         }
2030
2031         function truncate_string($str, $max_len, $suffix = '&hellip;') {
2032                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
2033                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
2034                 } else {
2035                         return $str;
2036                 }
2037         }
2038
2039         function theme_image($link, $filename) {
2040                 if ($link) {
2041                         $theme_path = get_user_theme_path($link);
2042
2043                         if ($theme_path && is_file($theme_path.$filename)) {
2044                                 return $theme_path.$filename;
2045                         } else {
2046                                 return $filename;
2047                         }
2048                 } else {
2049                         return $filename;
2050                 }
2051         }
2052
2053         function get_user_theme($link) {
2054
2055                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2056                         $theme_name = get_pref($link, "_THEME_ID");
2057                         if (is_dir("themes/$theme_name")) {
2058                                 return $theme_name;
2059                         } else {
2060                                 return '';
2061                         }
2062                 } else {
2063                         return '';
2064                 }
2065
2066         }
2067
2068         function get_user_theme_path($link) {
2069                 $theme_path = '';
2070
2071                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2072                         $theme_name = get_pref($link, "_THEME_ID");
2073
2074                         if ($theme_name && is_dir("themes/$theme_name")) {
2075                                 $theme_path = "themes/$theme_name/";
2076                         } else {
2077                                 $theme_name = '';
2078                         }
2079                 } else {
2080                         $theme_path = '';
2081                 }
2082
2083                 if ($theme_path) {
2084                         if (is_file("$theme_path/theme.ini")) {
2085                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
2086                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
2087                                         return $theme_path;
2088                                 }
2089                         }
2090                 }
2091                 return '';
2092         }
2093
2094         function get_user_theme_options($link) {
2095                 $t = get_user_theme_path($link);
2096
2097                 if ($t) {
2098                         if (is_file("$t/theme.ini")) {
2099                                 $ini = parse_ini_file("$t/theme.ini", true);
2100                                 if ($ini['theme']['version']) {
2101                                         return $ini['theme']['options'];
2102                                 }
2103                         }
2104                 }
2105                 return '';
2106         }
2107
2108         function print_theme_includes($link) {
2109
2110                 $t = get_user_theme_path($link);
2111                 $time = time();
2112
2113                 if ($t) {
2114                         print "<link rel=\"stylesheet\" type=\"text/css\"
2115                                 href=\"$t/theme.css?$time \">";
2116                         if (file_exists("$t/theme.js")) {
2117                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
2118                                         </script>";
2119                         }
2120                 }
2121         }
2122
2123         function get_all_themes() {
2124                 $themes = glob("themes/*");
2125
2126                 asort($themes);
2127
2128                 $rv = array();
2129
2130                 foreach ($themes as $t) {
2131                         if (is_file("$t/theme.ini")) {
2132                                 $ini = parse_ini_file("$t/theme.ini", true);
2133                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
2134                                                         !$ini['theme']['disabled']) {
2135                                         $entry = array();
2136                                         $entry["path"] = $t;
2137                                         $entry["base"] = basename($t);
2138                                         $entry["name"] = $ini['theme']['name'];
2139                                         $entry["version"] = $ini['theme']['version'];
2140                                         $entry["author"] = $ini['theme']['author'];
2141                                         $entry["options"] = $ini['theme']['options'];
2142                                         array_push($rv, $entry);
2143                                 }
2144                         }
2145                 }
2146
2147                 return $rv;
2148         }
2149
2150         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
2151
2152                 try {
2153                         $source_tz = new DateTimeZone($source_tz);
2154                 } catch (Exception $e) {
2155                         $source_tz = new DateTimeZone('UTC');
2156                 }
2157
2158                 try {
2159                         $dest_tz = new DateTimeZone($dest_tz);
2160                 } catch (Exception $e) {
2161                         $dest_tz = new DateTimeZone('UTC');
2162                 }
2163
2164                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
2165                 return $dt->format('U') + $dest_tz->getOffset($dt);
2166         }
2167
2168         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
2169                                         $no_smart_dt = false) {
2170
2171                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2172                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
2173
2174                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
2175
2176                 try {
2177                         $user_tz = new DateTimeZone($user_tz_string);
2178                 } catch (Exception $e) {
2179                         $user_tz = new DateTimeZone('UTC');
2180                 }
2181
2182                 # We store date in UTC internally
2183                 $dt = new DateTime($timestamp, new DateTimeZone('UTC'));
2184                 $user_timestamp = $dt->format('U') + $user_tz->getOffset($dt);
2185
2186                 if (!$no_smart_dt) {
2187                         return smart_date_time($link, $user_timestamp,
2188                                 $user_tz->getOffset($dt), $owner_uid);
2189                 } else {
2190                         if ($long)
2191                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2192                         else
2193                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2194
2195                         return date($format, $user_timestamp);
2196                 }
2197         }
2198
2199         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
2200                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2201
2202                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
2203                         return date("G:i", $timestamp);
2204                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
2205                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2206                         return date($format, $timestamp);
2207                 } else {
2208                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2209                         return date($format, $timestamp);
2210                 }
2211         }
2212
2213         function smart_date($timestamp) {
2214                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
2215                         return "Today";
2216                 } else if (date("Y", $timestamp) == date("Y")) {
2217                         return date("D m", $timestamp);
2218                 } else {
2219                         return date("Y/m/d", $timestamp);
2220                 }
2221         }
2222
2223         function sql_bool_to_string($s) {
2224                 if ($s == "t" || $s == "1") {
2225                         return "true";
2226                 } else {
2227                         return "false";
2228                 }
2229         }
2230
2231         function sql_bool_to_bool($s) {
2232                 if ($s == "t" || $s == "1") {
2233                         return true;
2234                 } else {
2235                         return false;
2236                 }
2237         }
2238
2239         function bool_to_sql_bool($s) {
2240                 if ($s) {
2241                         return "true";
2242                 } else {
2243                         return "false";
2244                 }
2245         }
2246
2247         function toggleEvenOdd($a) {
2248                 if ($a == "even")
2249                         return "odd";
2250                 else
2251                         return "even";
2252         }
2253
2254         function get_schema_version($link, $nocache = false) {
2255                 if (!$_SESSION["schema_version"] || $nocache) {
2256                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
2257                         $version = db_fetch_result($result, 0, "schema_version");
2258                         $_SESSION["schema_version"] = $version;
2259                         return $version;
2260                 } else {
2261                         return $_SESSION["schema_version"];
2262                 }
2263         }
2264
2265         function sanity_check($link) {
2266
2267                 global $ERRORS;
2268
2269                 $error_code = 0;
2270                 $schema_version = get_schema_version($link);
2271
2272                 if ($schema_version != SCHEMA_VERSION) {
2273                         $error_code = 5;
2274                 }
2275
2276                 if (DB_TYPE == "mysql") {
2277                         $result = db_query($link, "SELECT true", false);
2278                         if (db_num_rows($result) != 1) {
2279                                 $error_code = 10;
2280                         }
2281                 }
2282
2283                 if (db_escape_string("testTEST") != "testTEST") {
2284                         $error_code = 12;
2285                 }
2286
2287                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
2288         }
2289
2290         function file_is_locked($filename) {
2291                 if (function_exists('flock')) {
2292                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
2293                         if ($fp) {
2294                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2295                                         flock($fp, LOCK_UN);
2296                                         fclose($fp);
2297                                         return false;
2298                                 }
2299                                 fclose($fp);
2300                                 return true;
2301                         } else {
2302                                 return false;
2303                         }
2304                 }
2305                 return true; // consider the file always locked and skip the test
2306         }
2307
2308         function make_lockfile($filename) {
2309                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2310
2311                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2312                         if (function_exists('posix_getpid')) {
2313                                 fwrite($fp, posix_getpid() . "\n");
2314                         }
2315                         return $fp;
2316                 } else {
2317                         return false;
2318                 }
2319         }
2320
2321         function make_stampfile($filename) {
2322                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2323
2324                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2325                         fwrite($fp, time() . "\n");
2326                         flock($fp, LOCK_UN);
2327                         fclose($fp);
2328                         return true;
2329                 } else {
2330                         return false;
2331                 }
2332         }
2333
2334         function sql_random_function() {
2335                 if (DB_TYPE == "mysql") {
2336                         return "RAND()";
2337                 } else {
2338                         return "RANDOM()";
2339                 }
2340         }
2341
2342         function catchup_feed($link, $feed, $cat_view, $owner_uid = false) {
2343
2344                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2345
2346                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2347
2348                                 if ($cat_view) {
2349
2350                                         if ($feed >= 0) {
2351
2352                                                 if ($feed > 0) {
2353                                                         $cat_qpart = "cat_id = '$feed'";
2354                                                 } else {
2355                                                         $cat_qpart = "cat_id IS NULL";
2356                                                 }
2357
2358                                                 $tmp_result = db_query($link, "SELECT id
2359                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = $owner_uid");
2360
2361                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
2362
2363                                                         $tmp_feed = $tmp_line["id"];
2364
2365                                                         db_query($link, "UPDATE ttrss_user_entries
2366                                                                 SET unread = false,last_read = NOW()
2367                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = $owner_uid");
2368                                                 }
2369                                         } else if ($feed == -2) {
2370
2371
2372                                                 db_query($link, "UPDATE ttrss_user_entries
2373                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
2374                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
2375                                                         AND unread = true AND owner_uid = $owner_uid");
2376                                         }
2377
2378                                 } else if ($feed > 0) {
2379
2380                                         db_query($link, "UPDATE ttrss_user_entries
2381                                                         SET unread = false,last_read = NOW()
2382                                                         WHERE feed_id = '$feed' AND owner_uid = $owner_uid");
2383
2384                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
2385
2386                                         if ($feed == -1) {
2387                                                 db_query($link, "UPDATE ttrss_user_entries
2388                                                         SET unread = false,last_read = NOW()
2389                                                         WHERE marked = true AND owner_uid = $owner_uid");
2390                                         }
2391
2392                                         if ($feed == -2) {
2393                                                 db_query($link, "UPDATE ttrss_user_entries
2394                                                         SET unread = false,last_read = NOW()
2395                                                         WHERE published = true AND owner_uid = $owner_uid");
2396                                         }
2397
2398                                         if ($feed == -3) {
2399
2400                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
2401
2402                                                 if (DB_TYPE == "pgsql") {
2403                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
2404                                                 } else {
2405                                                         $match_part = "updated > DATE_SUB(NOW(),
2406                                                                 INTERVAL $intl HOUR) ";
2407                                                 }
2408
2409                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
2410                                                         ttrss_user_entries WHERE $match_part AND
2411                                                         unread = true AND
2412                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2413                                                         owner_uid = $owner_uid");
2414
2415                                                 $affected_ids = array();
2416
2417                                                 while ($line = db_fetch_assoc($result)) {
2418                                                         array_push($affected_ids, $line["id"]);
2419                                                 }
2420
2421                                                 catchupArticlesById($link, $affected_ids, 0);
2422                                         }
2423
2424                                         if ($feed == -4) {
2425                                                 db_query($link, "UPDATE ttrss_user_entries
2426                                                         SET unread = false,last_read = NOW()
2427                                                         WHERE owner_uid = $owner_uid");
2428                                         }
2429
2430                                 } else if ($feed < -10) { // label
2431
2432                                         $label_id = -$feed - 11;
2433
2434                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
2435                                                 SET unread = false, last_read = NOW()
2436                                                         WHERE label_id = '$label_id' AND unread = true
2437                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
2438
2439                                 }
2440
2441                                 ccache_update($link, $feed, $owner_uid, $cat_view);
2442
2443                         } else { // tag
2444                                 db_query($link, "BEGIN");
2445
2446                                 $tag_name = db_escape_string($feed);
2447
2448                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
2449                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
2450
2451                                 while ($line = db_fetch_assoc($result)) {
2452                                         db_query($link, "UPDATE ttrss_user_entries SET
2453                                                 unread = false, last_read = NOW()
2454                                                 WHERE int_id = " . $line["post_int_id"]);
2455                                 }
2456                                 db_query($link, "COMMIT");
2457                         }
2458         }
2459
2460         function getAllCounters($link, $omode = "flc", $active_feed = false) {
2461
2462                 if (!$omode) $omode = "flc";
2463
2464                 $data = getGlobalCounters($link);
2465
2466                 $data = array_merge($data, getVirtCounters($link));
2467
2468                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
2469                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
2470                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
2471                 if (strchr($omode, "c")) {
2472                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
2473                                 $data = array_merge($data, getCategoryCounters($link));
2474                         }
2475                 }
2476
2477                 return $data;
2478         }
2479
2480         function getCategoryCounters($link) {
2481                 $ret_arr = array();
2482
2483                 /* Labels category */
2484
2485                 $cv = array("id" => -2, "kind" => "cat",
2486                         "counter" => getCategoryUnread($link, -2));
2487
2488                 array_push($ret_arr, $cv);
2489
2490                 $age_qpart = getMaxAgeSubquery();
2491
2492                 $result = db_query($link, "SELECT id AS cat_id, value AS unread
2493                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
2494                         WHERE ttrss_cat_counters_cache.feed_id = id AND
2495                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
2496
2497                 while ($line = db_fetch_assoc($result)) {
2498                         $line["cat_id"] = (int) $line["cat_id"];
2499
2500                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
2501                                 "counter" => $line["unread"]);
2502
2503                         array_push($ret_arr, $cv);
2504                 }
2505
2506                 /* Special case: NULL category doesn't actually exist in the DB */
2507
2508                 $cv = array("id" => 0, "kind" => "cat",
2509                         "counter" => ccache_find($link, 0, $_SESSION["uid"], true));
2510
2511                 array_push($ret_arr, $cv);
2512
2513                 return $ret_arr;
2514         }
2515
2516         function getCategoryUnread($link, $cat, $owner_uid = false) {
2517
2518                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2519
2520                 if ($cat >= 0) {
2521
2522                         if ($cat != 0) {
2523                                 $cat_query = "cat_id = '$cat'";
2524                         } else {
2525                                 $cat_query = "cat_id IS NULL";
2526                         }
2527
2528                         $age_qpart = getMaxAgeSubquery();
2529
2530                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
2531                                         AND owner_uid = " . $owner_uid);
2532
2533                         $cat_feeds = array();
2534                         while ($line = db_fetch_assoc($result)) {
2535                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
2536                         }
2537
2538                         if (count($cat_feeds) == 0) return 0;
2539
2540                         $match_part = implode(" OR ", $cat_feeds);
2541
2542                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
2543                                 FROM ttrss_user_entries,ttrss_entries
2544                                 WHERE   unread = true AND ($match_part) AND id = ref_id
2545                                 AND $age_qpart AND owner_uid = " . $owner_uid);
2546
2547                         $unread = 0;
2548
2549                         # this needs to be rewritten
2550                         while ($line = db_fetch_assoc($result)) {
2551                                 $unread += $line["unread"];
2552                         }
2553
2554                         return $unread;
2555                 } else if ($cat == -1) {
2556                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
2557                 } else if ($cat == -2) {
2558
2559                         $result = db_query($link, "
2560                                 SELECT COUNT(unread) AS unread FROM
2561                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2562                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2563                                         ttrss_labels2.owner_uid = '$owner_uid'
2564                                         AND unread = true AND feed_id = ttrss_feeds.id
2565                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
2566
2567                         $unread = db_fetch_result($result, 0, "unread");
2568
2569                         return $unread;
2570
2571                 }
2572         }
2573
2574         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
2575                 if (DB_TYPE == "pgsql") {
2576                         return "ttrss_entries.date_updated >
2577                                 NOW() - INTERVAL '$days days'";
2578                 } else {
2579                         return "ttrss_entries.date_updated >
2580                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
2581                 }
2582         }
2583
2584         function getFeedUnread($link, $feed, $is_cat = false) {
2585                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
2586         }
2587
2588         function getLabelUnread($link, $label_id, $owner_uid = false) {
2589                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2590
2591                 $result = db_query($link, "
2592                         SELECT COUNT(unread) AS unread FROM
2593                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2594                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2595                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
2596                                 AND unread = true AND feed_id = ttrss_feeds.id
2597                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
2598
2599                 if (db_num_rows($result) != 0) {
2600                         return db_fetch_result($result, 0, "unread");
2601                 } else {
2602                         return 0;
2603                 }
2604         }
2605
2606         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
2607                 $owner_uid = false) {
2608
2609                 $n_feed = (int) $feed;
2610
2611                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2612
2613                 if ($unread_only) {
2614                         $unread_qpart = "unread = true";
2615                 } else {
2616                         $unread_qpart = "true";
2617                 }
2618
2619                 $age_qpart = getMaxAgeSubquery();
2620
2621                 if ($is_cat) {
2622                         return getCategoryUnread($link, $n_feed, $owner_uid);
2623                 } if ($feed != "0" && $n_feed == 0) {
2624
2625                         $feed = db_escape_string($feed);
2626
2627                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
2628                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2629                                         AND ref_id = id AND $age_qpart
2630                                         AND $unread_qpart)) AS count FROM ttrss_tags
2631                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
2632                         return db_fetch_result($result, 0, "count");
2633
2634                 } else if ($n_feed == -1) {
2635                         $match_part = "marked = true";
2636                 } else if ($n_feed == -2) {
2637                         $match_part = "published = true";
2638                 } else if ($n_feed == -3) {
2639                         $match_part = "unread = true AND score >= 0";
2640
2641                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2642
2643                         if (DB_TYPE == "pgsql") {
2644                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2645                         } else {
2646                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2647                         }
2648                 } else if ($n_feed == -4) {
2649                         $match_part = "true";
2650                 } else if ($n_feed >= 0) {
2651
2652                         if ($n_feed != 0) {
2653                                 $match_part = "feed_id = '$n_feed'";
2654                         } else {
2655                                 $match_part = "feed_id IS NULL";
2656                         }
2657
2658                 } else if ($feed < -10) {
2659
2660                         $label_id = -$feed - 11;
2661
2662                         return getLabelUnread($link, $label_id, $owner_uid);
2663
2664                 }
2665
2666                 if ($match_part) {
2667
2668                         if ($n_feed != 0) {
2669                                 $from_qpart = "ttrss_user_entries,ttrss_feeds,ttrss_entries";
2670                                 $feeds_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2671                         } else {
2672                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
2673                                 $feeds_qpart = '';
2674                         }
2675
2676                         $query = "SELECT count(int_id) AS unread
2677                                 FROM $from_qpart WHERE
2678                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
2679                                 $age_qpart AND
2680                                 $feeds_qpart
2681                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
2682
2683                         $result = db_query($link, $query);
2684
2685                 } else {
2686
2687                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
2688                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
2689                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
2690                                 AND $unread_qpart AND $age_qpart AND
2691                                         ttrss_tags.owner_uid = " . $owner_uid);
2692                 }
2693
2694                 $unread = db_fetch_result($result, 0, "unread");
2695
2696                 return $unread;
2697         }
2698
2699         function getGlobalUnread($link, $user_id = false) {
2700
2701                 if (!$user_id) {
2702                         $user_id = $_SESSION["uid"];
2703                 }
2704
2705                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
2706                         WHERE owner_uid = '$user_id' AND feed_id > 0");
2707
2708                 $c_id = db_fetch_result($result, 0, "c_id");
2709
2710                 return $c_id;
2711         }
2712
2713         function getGlobalCounters($link, $global_unread = -1) {
2714                 $ret_arr = array();
2715
2716                 if ($global_unread == -1) {
2717                         $global_unread = getGlobalUnread($link);
2718                 }
2719
2720                 $cv = array("id" => "global-unread",
2721                         "counter" => $global_unread);
2722
2723                 array_push($ret_arr, $cv);
2724
2725                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2726                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2727
2728                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
2729
2730                 $cv = array("id" => "subscribed-feeds",
2731                         "counter" => $subscribed_feeds);
2732
2733                 array_push($ret_arr, $cv);
2734
2735                 return $ret_arr;
2736         }
2737
2738         function getSubscribedFeeds($link) {
2739                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2740                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2741
2742                 return db_fetch_result($result, 0, "fn");
2743         }
2744
2745         function getTagCounters($link) {
2746
2747                 $ret_arr = array();
2748
2749                 $age_qpart = getMaxAgeSubquery();
2750
2751                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
2752                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2753                                 AND ref_id = id AND $age_qpart
2754                                 AND unread = true)) AS count FROM ttrss_tags
2755                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
2756                                 ORDER BY count DESC LIMIT 55");
2757
2758                 $tags = array();
2759
2760                 while ($line = db_fetch_assoc($result)) {
2761                         $tags[$line["tag_name"]] += $line["count"];
2762                 }
2763
2764                 foreach (array_keys($tags) as $tag) {
2765                         $unread = $tags[$tag];
2766                         $tag = htmlspecialchars($tag);
2767
2768                         $cv = array("id" => $tag,
2769                                 "kind" => "tag",
2770                                 "counter" => $unread);
2771
2772                         array_push($ret_arr, $cv);
2773                 }
2774
2775                 return $ret_arr;
2776         }
2777
2778         function getVirtCounters($link) {
2779
2780                 $ret_arr = array();
2781
2782                 for ($i = 0; $i >= -4; $i--) {
2783
2784                         $count = getFeedUnread($link, $i);
2785
2786                         $cv = array("id" => $i,
2787                                 "counter" => $count);
2788
2789 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2790 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
2791
2792                         array_push($ret_arr, $cv);
2793                 }
2794
2795                 return $ret_arr;
2796         }
2797
2798         function getLabelCounters($link, $descriptions = false) {
2799
2800                 $ret_arr = array();
2801
2802                 $age_qpart = getMaxAgeSubquery();
2803
2804                 $owner_uid = $_SESSION["uid"];
2805
2806                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
2807                         WHERE owner_uid = '$owner_uid'");
2808
2809                 while ($line = db_fetch_assoc($result)) {
2810
2811                         $id = -$line["id"] - 11;
2812
2813                         $label_name = $line["caption"];
2814                         $count = getFeedUnread($link, $id);
2815
2816                         $cv = array("id" => $id,
2817                                 "counter" => $count);
2818
2819                         if ($descriptions)
2820                                 $cv["description"] = $label_name;
2821
2822 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2823 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2824
2825                         array_push($ret_arr, $cv);
2826                 }
2827
2828                 return $ret_arr;
2829         }
2830
2831         function getFeedCounters($link, $active_feed = false) {
2832
2833                 $ret_arr = array();
2834
2835                 $age_qpart = getMaxAgeSubquery();
2836
2837                 $query = "SELECT ttrss_feeds.id,
2838                                 ttrss_feeds.title,
2839                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
2840                                 last_error, value AS count
2841                         FROM ttrss_feeds, ttrss_counters_cache
2842                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
2843                                 AND ttrss_counters_cache.feed_id = id";
2844
2845                 $result = db_query($link, $query);
2846                 $fctrs_modified = false;
2847
2848                 while ($line = db_fetch_assoc($result)) {
2849
2850                         $id = $line["id"];
2851                         $count = $line["count"];
2852                         $last_error = htmlspecialchars($line["last_error"]);
2853
2854                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
2855
2856                         $has_img = feed_has_icon($id);
2857
2858                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
2859                                 $last_updated = '';
2860
2861                         $cv = array("id" => $id,
2862                                 "updated" => $last_updated,
2863                                 "counter" => $count,
2864                                 "has_img" => (int) $has_img);
2865
2866                         if ($last_error)
2867                                 $cv["error"] = $last_error;
2868
2869 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2870 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2871
2872                         if ($active_feed && $id == $active_feed)
2873                                 $cv["title"] = truncate_string($line["title"], 30);
2874
2875                         array_push($ret_arr, $cv);
2876
2877                 }
2878
2879                 return $ret_arr;
2880         }
2881
2882         function get_pgsql_version($link) {
2883                 $result = db_query($link, "SELECT version() AS version");
2884                 $version = split(" ", db_fetch_result($result, 0, "version"));
2885                 return $version[1];
2886         }
2887
2888         /**
2889          * Subscribes the user to the given feed
2890          *
2891          * @param resource $link       Database connection
2892          * @param string   $url        Feed URL to subscribe to
2893          * @param integer  $cat_id     Category ID the feed shall be added to
2894          * @param string   $auth_login (optional) Feed username
2895          * @param string   $auth_pass  (optional) Feed password
2896          *
2897          * @return integer Status code:
2898          *                 0 - OK, Feed already exists
2899          *                 1 - OK, Feed added
2900          *                 2 - Invalid URL
2901          *                 3 - URL content is HTML, no feeds available
2902          *                 4 - URL content is HTML which contains multiple feeds.
2903          *                     Here you should call extractfeedurls in rpc-backend
2904          *                     to get all possible feeds.
2905          *                 5 - Couldn't download the URL content.
2906          */
2907         function subscribe_to_feed($link, $url, $cat_id = 0,
2908                         $auth_login = '', $auth_pass = '') {
2909
2910                 $url = fix_url($url);
2911
2912                 if (!$url || !validate_feed_url($url)) return 2;
2913
2914                 $update_method = 0;
2915
2916                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
2917                         WHERE id = ".$_SESSION['uid']);
2918
2919                 $has_oauth = db_fetch_result($result, 0, 'twitter_oauth');
2920
2921                 if (!$has_oauth || strpos($url, '://api.twitter.com') === false) {
2922                         if (!fetch_file_contents($url, false, $auth_login, $auth_pass)) return 5;
2923
2924                         if (url_is_html($url, $auth_login, $auth_pass)) {
2925                                 $feedUrls = get_feeds_from_html($url, $auth_login, $auth_pass);
2926                                 if (count($feedUrls) == 0) {
2927                                         return 3;
2928                                 } else if (count($feedUrls) > 1) {
2929                                         return 4;
2930                                 }
2931                                 //use feed url as new URL
2932                                 $url = key($feedUrls);
2933                         }
2934
2935                         } else {
2936                                 if (!fetch_twitter_rss($link, $url, $_SESSION['uid']))
2937                                         return 5;
2938
2939                                 $update_method = 3;
2940                         }
2941                 if ($cat_id == "0" || !$cat_id) {
2942                         $cat_qpart = "NULL";
2943                 } else {
2944                         $cat_qpart = "'$cat_id'";
2945                 }
2946
2947                 $result = db_query($link,
2948                         "SELECT id FROM ttrss_feeds
2949                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
2950
2951                 if (db_num_rows($result) == 0) {
2952                         $result = db_query($link,
2953                                 "INSERT INTO ttrss_feeds
2954                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
2955                                 VALUES ('".$_SESSION["uid"]."', '$url',
2956                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
2957
2958                         $result = db_query($link,
2959                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
2960                                         AND owner_uid = " . $_SESSION["uid"]);
2961
2962                         $feed_id = db_fetch_result($result, 0, "id");
2963
2964                         if ($feed_id) {
2965                                 update_rss_feed($link, $feed_id, true);
2966                         }
2967
2968                         return 1;
2969                 } else {
2970                         return 0;
2971                 }
2972         }
2973
2974         function print_feed_select($link, $id, $default_id = "",
2975                 $attributes = "", $include_all_feeds = true) {
2976
2977                 print "<select id=\"$id\" name=\"$id\" $attributes>";
2978                 if ($include_all_feeds) {
2979                         print "<option value=\"0\">".__('All feeds')."</option>";
2980                 }
2981
2982                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
2983                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
2984
2985                 if (db_num_rows($result) > 0 && $include_all_feeds) {
2986                         print "<option disabled>--------</option>";
2987                 }
2988
2989                 while ($line = db_fetch_assoc($result)) {
2990                         if ($line["id"] == $default_id) {
2991                                 $is_selected = "selected=\"1\"";
2992                         } else {
2993                                 $is_selected = "";
2994                         }
2995
2996                         $title = truncate_string(htmlspecialchars($line["title"]), 40);
2997
2998                         printf("<option $is_selected value='%d'>%s</option>",
2999                                 $line["id"], $title);
3000                 }
3001
3002                 print "</select>";
3003         }
3004
3005         function print_feed_cat_select($link, $id, $default_id = "",
3006                 $attributes = "", $include_all_cats = true) {
3007
3008                 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
3009
3010                 if ($include_all_cats) {
3011                         print "<option value=\"0\">".__('Uncategorized')."</option>";
3012                 }
3013
3014                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
3015                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3016
3017                 if (db_num_rows($result) > 0 && $include_all_cats) {
3018                         print "<option disabled=\"1\">--------</option>";
3019                 }
3020
3021                 while ($line = db_fetch_assoc($result)) {
3022                         if ($line["id"] == $default_id) {
3023                                 $is_selected = "selected=\"1\"";
3024                         } else {
3025                                 $is_selected = "";
3026                         }
3027
3028                         if ($line["title"])
3029                                 printf("<option $is_selected value='%d'>%s</option>",
3030                                         $line["id"], htmlspecialchars($line["title"]));
3031                 }
3032
3033 #               print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
3034
3035                 print "</select>";
3036         }
3037
3038         function checkbox_to_sql_bool($val) {
3039                 return ($val == "on") ? "true" : "false";
3040         }
3041
3042         function getFeedCatTitle($link, $id) {
3043                 if ($id == -1) {
3044                         return __("Special");
3045                 } else if ($id < -10) {
3046                         return __("Labels");
3047                 } else if ($id > 0) {
3048                         $result = db_query($link, "SELECT ttrss_feed_categories.title
3049                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
3050                                         cat_id = ttrss_feed_categories.id");
3051                         if (db_num_rows($result) == 1) {
3052                                 return db_fetch_result($result, 0, "title");
3053                         } else {
3054                                 return __("Uncategorized");
3055                         }
3056                 } else {
3057                         return "getFeedCatTitle($id) failed";
3058                 }
3059
3060         }
3061
3062         function getFeedIcon($id) {
3063                 switch ($id) {
3064                 case 0:
3065                         return "images/archive.png";
3066                         break;
3067                 case -1:
3068                         return "images/mark_set.png";
3069                         break;
3070                 case -2:
3071                         return "images/pub_set.png";
3072                         break;
3073                 case -3:
3074                         return "images/fresh.png";
3075                         break;
3076                 case -4:
3077                         return "images/tag.png";
3078                         break;
3079                 default:
3080                         if ($id < -10) {
3081                                 return "images/label.png";
3082                         } else {
3083                                 if (file_exists(ICONS_DIR . "/$id.ico"))
3084                                         return ICONS_URL . "/$id.ico";
3085                         }
3086                         break;
3087                 }
3088         }
3089
3090         function getFeedTitle($link, $id) {
3091                 if ($id == -1) {
3092                         return __("Starred articles");
3093                 } else if ($id == -2) {
3094                         return __("Published articles");
3095                 } else if ($id == -3) {
3096                         return __("Fresh articles");
3097                 } else if ($id == -4) {
3098                         return __("All articles");
3099                 } else if ($id === 0 || $id === "0") {
3100                         return __("Archived articles");
3101                 } else if ($id < -10) {
3102                         $label_id = -$id - 11;
3103                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
3104                         if (db_num_rows($result) == 1) {
3105                                 return db_fetch_result($result, 0, "caption");
3106                         } else {
3107                                 return "Unknown label ($label_id)";
3108                         }
3109
3110                 } else if ($id > 0) {
3111                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
3112                         if (db_num_rows($result) == 1) {
3113                                 return db_fetch_result($result, 0, "title");
3114                         } else {
3115                                 return "Unknown feed ($id)";
3116                         }
3117                 } else {
3118                         return $id;
3119                 }
3120         }
3121
3122         function get_session_cookie_name() {
3123                 return ((!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME);
3124         }
3125
3126         function make_init_params($link) {
3127                 $params = array();
3128
3129                 $params["theme"] = get_user_theme($link);
3130                 $params["theme_options"] = get_user_theme_options($link);
3131                 $params["daemon_enabled"] = ENABLE_UPDATE_DAEMON;
3132
3133                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
3134                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
3135                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
3136                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
3137
3138                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
3139                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
3140                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
3141                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
3142
3143                                  $params[strtolower($param)] = (int) get_pref($link, $param);
3144                  }
3145
3146                 $params["icons_url"] = ICONS_URL;
3147                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
3148                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
3149                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
3150                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
3151                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
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                 $params["max_feed_id"] = (int) $max_feed_id;
3160                 $params["num_feeds"] = (int) $num_feeds;
3161
3162                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
3163
3164                 return $params;
3165         }
3166
3167         function print_runtime_info($link) {
3168                 print "<runtime-info><![CDATA[";
3169                 print json_encode(make_runtime_info($link));
3170                 print "]]></runtime-info>";
3171         }
3172
3173         function make_runtime_info($link) {
3174                 $data = array();
3175
3176                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3177                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3178
3179                 $max_feed_id = db_fetch_result($result, 0, "mid");
3180                 $num_feeds = db_fetch_result($result, 0, "nf");
3181
3182                 $data["max_feed_id"] = (int) $max_feed_id;
3183                 $data["num_feeds"] = (int) $num_feeds;
3184
3185                 $data['last_article_id'] = getLastArticleId($link);
3186                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
3187
3188                 if (ENABLE_UPDATE_DAEMON) {
3189
3190                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
3191
3192                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
3193
3194                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
3195
3196                                 if ($stamp) {
3197                                         $stamp_delta = time() - $stamp;
3198
3199                                         if ($stamp_delta > 1800) {
3200                                                 $stamp_check = 0;
3201                                         } else {
3202                                                 $stamp_check = 1;
3203                                                 $_SESSION["daemon_stamp_check"] = time();
3204                                         }
3205
3206                                         $data['daemon_stamp_ok'] = $stamp_check;
3207
3208                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
3209
3210                                         $data['daemon_stamp'] = $stamp_fmt;
3211                                 }
3212                         }
3213                 }
3214
3215                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
3216                                 $new_version_details = @check_for_update($link);
3217
3218                                 $data['new_version_available'] = (int) ($new_version_details != false);
3219
3220                                 $_SESSION["last_version_check"] = time();
3221                 }
3222
3223                 return $data;
3224         }
3225
3226         function getSearchSql($link, $search, $match_on) {
3227
3228                 $search_query_part = "";
3229
3230                 $keywords = split(" ", $search);
3231                 $query_keywords = array();
3232
3233                 foreach ($keywords as $k) {
3234                         if (strpos($k, "-") === 0) {
3235                                 $k = substr($k, 1);
3236                                 $not = "NOT";
3237                         } else {
3238                                 $not = "";
3239                         }
3240
3241                         if (strpos($k, "@") === 0) {
3242
3243                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
3244                                 $orig_ts = strtotime(substr($k, 1));
3245
3246                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
3247
3248                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
3249                         } else if ($match_on == "both") {
3250                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
3251                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3252                         } else if ($match_on == "title") {
3253                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
3254                         } else if ($match_on == "content") {
3255                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3256                         }
3257                 }
3258
3259                 $search_query_part = implode("AND", $query_keywords);
3260
3261                 return $search_query_part;
3262         }
3263
3264         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0) {
3265
3266                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3267
3268                 $ext_tables_part = "";
3269
3270                         if ($search) {
3271
3272                                 if (SPHINX_ENABLED) {
3273                                         $ids = join(",", @sphinx_search($search, 0, 500));
3274
3275                                         if ($ids)
3276                                                 $search_query_part = "ref_id IN ($ids) AND ";
3277                                         else
3278                                                 $search_query_part = "ref_id = -1 AND ";
3279
3280                                 } else {
3281                                         $search_query_part = getSearchSql($link, $search, $match_on);
3282                                         $search_query_part .= " AND ";
3283                                 }
3284
3285                         } else {
3286                                 $search_query_part = "";
3287                         }
3288
3289                         $view_query_part = "";
3290
3291                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
3292                                 if ($search) {
3293                                         $view_query_part = " ";
3294                                 } else if ($feed != -1) {
3295                                         $unread = getFeedUnread($link, $feed, $cat_view);
3296                                         if ($unread > 0) {
3297                                                 $view_query_part = " unread = true AND ";
3298                                         }
3299                                 }
3300                         }
3301
3302                         if ($view_mode == "marked") {
3303                                 $view_query_part = " marked = true AND ";
3304                         }
3305
3306                         if ($view_mode == "published") {
3307                                 $view_query_part = " published = true AND ";
3308                         }
3309
3310                         if ($view_mode == "unread") {
3311                                 $view_query_part = " unread = true AND ";
3312                         }
3313
3314                         if ($view_mode == "updated") {
3315                                 $view_query_part = " (last_read is null and unread = false) AND ";
3316                         }
3317
3318                         if ($limit > 0) {
3319                                 $limit_query_part = "LIMIT " . $limit;
3320                         }
3321
3322                         $vfeed_query_part = "";
3323
3324                         // override query strategy and enable feed display when searching globally
3325                         if ($search && $search_mode == "all_feeds") {
3326                                 $query_strategy_part = "ttrss_entries.id > 0";
3327                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3328                         /* tags */
3329                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
3330                                 $query_strategy_part = "ttrss_entries.id > 0";
3331                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
3332                                         id = feed_id) as feed_title,";
3333                         } else if ($feed > 0 && $search && $search_mode == "this_cat") {
3334
3335                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3336
3337                                 $tmp_result = false;
3338
3339                                 if ($cat_view) {
3340                                         $tmp_result = db_query($link, "SELECT id
3341                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
3342                                 } else {
3343                                         $tmp_result = db_query($link, "SELECT id
3344                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
3345                                                         WHERE id = '$feed') AND id != '$feed'");
3346                                 }
3347
3348                                 $cat_siblings = array();
3349
3350                                 if (db_num_rows($tmp_result) > 0) {
3351                                         while ($p = db_fetch_assoc($tmp_result)) {
3352                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
3353                                         }
3354
3355                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
3356                                                 $feed, implode(" OR ", $cat_siblings));
3357
3358                                 } else {
3359                                         $query_strategy_part = "ttrss_entries.id > 0";
3360                                 }
3361
3362                         } else if ($feed > 0) {
3363
3364                                 if ($cat_view) {
3365
3366                                         if ($feed > 0) {
3367                                                 $query_strategy_part = "cat_id = '$feed'";
3368                                         } else {
3369                                                 $query_strategy_part = "cat_id IS NULL";
3370                                         }
3371
3372                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3373
3374                                 } else {
3375                                         $query_strategy_part = "feed_id = '$feed'";
3376                                 }
3377                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
3378                                 $query_strategy_part = "feed_id IS NULL";
3379                         } else if ($feed == 0 && $cat_view) { // uncategorized
3380                                 $query_strategy_part = "cat_id IS NULL";
3381                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3382                         } else if ($feed == -1) { // starred virtual feed
3383                                 $query_strategy_part = "marked = true";
3384                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3385                         } else if ($feed == -2) { // published virtual feed OR labels category
3386
3387                                 if (!$cat_view) {
3388                                         $query_strategy_part = "published = true";
3389                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3390                                 } else {
3391                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3392
3393                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3394
3395                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
3396                                                 ttrss_user_labels2.article_id = ref_id";
3397
3398                                 }
3399
3400                         } else if ($feed == -3) { // fresh virtual feed
3401                                 $query_strategy_part = "unread = true AND score >= 0";
3402
3403                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
3404
3405                                 if (DB_TYPE == "pgsql") {
3406                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
3407                                 } else {
3408                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
3409                                 }
3410
3411                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3412                         } else if ($feed == -4) { // all articles virtual feed
3413                                 $query_strategy_part = "true";
3414                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3415                         } else if ($feed <= -10) { // labels
3416                                 $label_id = -$feed - 11;
3417
3418                                 $query_strategy_part = "label_id = '$label_id' AND
3419                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
3420                                         ttrss_user_labels2.article_id = ref_id";
3421
3422                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3423                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3424
3425                         } else {
3426                                 $query_strategy_part = "id > 0"; // dumb
3427                         }
3428
3429                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3430                                 $date_sort_field = "updated";
3431                         } else {
3432                                 $date_sort_field = "date_entered";
3433                         }
3434
3435                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
3436                                 $order_by = "$date_sort_field";
3437                         } else {
3438                                 $order_by = "$date_sort_field DESC";
3439                         }
3440
3441                         if ($view_mode != "noscores") {
3442                                 $order_by = "score DESC, $order_by";
3443                         }
3444
3445                         if ($override_order) {
3446                                 $order_by = $override_order;
3447                         }
3448
3449                         $feed_title = "";
3450
3451                         if ($search) {
3452                                 $feed_title = "Search results";
3453                         } else {
3454                                 if ($cat_view) {
3455                                         $feed_title = getCategoryTitle($link, $feed);
3456                                 } else {
3457                                         if ((int)$feed == $feed && $feed > 0) {
3458                                                 $result = db_query($link, "SELECT title,site_url,last_error
3459                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
3460
3461                                                 $feed_title = db_fetch_result($result, 0, "title");
3462                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
3463                                                 $last_error = db_fetch_result($result, 0, "last_error");
3464                                         } else {
3465                                                 $feed_title = getFeedTitle($link, $feed);
3466                                         }
3467                                 }
3468                         }
3469
3470                         $content_query_part = "content as content_preview,";
3471
3472                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
3473
3474                                 if ($feed >= 0) {
3475                                         $feed_kind = "Feeds";
3476                                 } else {
3477                                         $feed_kind = "Labels";
3478                                 }
3479
3480                                 if ($limit_query_part) {
3481                                         $offset_query_part = "OFFSET $offset";
3482                                 }
3483
3484                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
3485                                         if (!$override_order) {
3486                                                 $order_by = "ttrss_feeds.title, $order_by";
3487                                         }
3488                                 }
3489
3490                                 if ($feed != "0") {
3491                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
3492                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
3493
3494                                 } else {
3495                                         $from_qpart = "ttrss_entries,ttrss_user_entries$ext_tables_part
3496                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
3497                                 }
3498
3499                                 $query = "SELECT DISTINCT
3500                                                 date_entered,
3501                                                 guid,
3502                                                 ttrss_entries.id,ttrss_entries.title,
3503                                                 updated,
3504                                                 note,
3505                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
3506                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3507                                                 $vfeed_query_part
3508                                                 $content_query_part
3509                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3510                                                 author,score
3511                                         FROM
3512                                                 $from_qpart
3513                                         WHERE
3514                                         $feed_check_qpart
3515                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
3516                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
3517                                         $search_query_part
3518                                         $view_query_part
3519                                         $query_strategy_part ORDER BY $order_by
3520                                         $limit_query_part $offset_query_part";
3521
3522                                 if ($_REQUEST["debug"]) print $query;
3523
3524                                 $result = db_query($link, $query);
3525
3526                         } else {
3527                                 // browsing by tag
3528
3529                                 $feed_kind = "Tags";
3530
3531                                 $result = db_query($link, "SELECT DISTINCT
3532                                         date_entered,
3533                                         guid,
3534                                         note,
3535                                         ttrss_entries.id as id,title,
3536                                         updated,
3537                                         unread,feed_id,orig_feed_id,
3538                                         marked,link,last_read,
3539                                         ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3540                                         $vfeed_query_part
3541                                         $content_query_part
3542                                         ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3543                                         score
3544                                         FROM
3545                                                 ttrss_entries,ttrss_user_entries,ttrss_tags
3546                                         WHERE
3547                                                 ref_id = ttrss_entries.id AND
3548                                                 ttrss_user_entries.owner_uid = '$owner_uid' AND
3549                                                 post_int_id = int_id AND tag_name = '$feed' AND
3550                                                 $view_query_part
3551                                                 $search_query_part
3552                                                 $query_strategy_part ORDER BY $order_by
3553                                         $limit_query_part");
3554                         }
3555
3556                         return array($result, $feed_title, $feed_site_url, $last_error);
3557
3558         }
3559
3560         function generate_syndicated_feed($link, $owner_uid, $feed, $is_cat,
3561                 $limit, $search, $search_mode, $match_on, $view_mode = false) {
3562
3563                 $note_style =   "float : right; background-color : #fff7d5; border-width : 1px; ".
3564                         "padding : 5px; border-style : dashed; border-color : #e7d796;".
3565                         "margin-bottom : 1em; color : #9a8c59;";
3566
3567                 if (!$limit) $limit = 30;
3568
3569                 if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3570                         $date_sort_field = "updated";
3571                 } else {
3572                         $date_sort_field = "date_entered";
3573                 }
3574
3575                 $qfh_ret = queryFeedHeadlines($link, $feed,
3576                         $limit, $view_mode, $is_cat, $search, $search_mode,
3577                         $match_on, "$date_sort_field DESC", 0, $owner_uid);
3578
3579                 $result = $qfh_ret[0];
3580                 $feed_title = htmlspecialchars($qfh_ret[1]);
3581                 $feed_site_url = $qfh_ret[2];
3582                 $last_error = $qfh_ret[3];
3583
3584 //              if (!$feed_site_url) $feed_site_url = "http://localhost/";
3585
3586                 print "<?xml version=\"1.0\" encoding=\"utf-8\"?>
3587                         <?xml-stylesheet type=\"text/xsl\" href=\"rss.xsl\"?>
3588                         <rss version=\"2.0\">
3589                         <channel>
3590                         <title>$feed_title</title>
3591                         <link>$feed_site_url</link>
3592                         <description>Feed generated by Tiny Tiny RSS</description>";
3593
3594                 while ($line = db_fetch_assoc($result)) {
3595                         print "<item>";
3596                         print "<guid>" . htmlspecialchars($line["guid"]) . "</guid>";
3597                         print "<link>" . htmlspecialchars($line["link"]) . "</link>";
3598
3599                         $tags = get_article_tags($link, $line["id"], $owner_uid);
3600
3601                         foreach ($tags as $tag) {
3602                                 print "<category>" . htmlspecialchars($tag) . "</category>";
3603                         }
3604
3605                         $rfc822_date = date('r', strtotime($line["updated"]));
3606
3607                         print "<pubDate>$rfc822_date</pubDate>";
3608
3609                         if ($line["author"]) {
3610                                 print "<author>" . htmlspecialchars($line["author"]) . "</author>";
3611                         }
3612
3613                         print "<title><![CDATA[" .
3614                                 htmlspecialchars($line["title"]) . "]]></title>";
3615
3616                         print "<description><![CDATA[";
3617
3618                         if ($line["note"]) {
3619                                 print "<div style='$note_style'>";
3620                                 print $line["note"];
3621                                 print "</div>";
3622                         }
3623
3624                         print sanitize_rss($link, $line["content_preview"], false, $owner_uid);
3625                         print "]]></description>";
3626
3627                         $enclosures = get_article_enclosures($link, $line["id"]);
3628
3629                         foreach ($enclosures as $e) {
3630                                 $type = htmlspecialchars($e['content_type']);
3631                                 $url = htmlspecialchars($e['content_url']);
3632                                 $length = $e['duration'];
3633                                 print "<enclosure url=\"$url\" type=\"$type\" length=\"$length\"/>";
3634                         }
3635
3636                         print "</item>";
3637                 }
3638
3639                 print "</channel></rss>";
3640
3641         }
3642
3643         function getCategoryTitle($link, $cat_id) {
3644
3645                 if ($cat_id == -1) {
3646                         return __("Special");
3647                 } else if ($cat_id == -2) {
3648                         return __("Labels");
3649                 } else {
3650
3651                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
3652                                 id = '$cat_id'");
3653
3654                         if (db_num_rows($result) == 1) {
3655                                 return db_fetch_result($result, 0, "title");
3656                         } else {
3657                                 return "Uncategorized";
3658                         }
3659                 }
3660         }
3661
3662         function sanitize_rss($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
3663                 global $purifier;
3664
3665                 if (!$owner) $owner = $_SESSION["uid"];
3666
3667                 $res = trim($str); if (!$res) return '';
3668
3669                 if (get_pref($link, "STRIP_UNSAFE_TAGS", $owner) || $force_strip_tags) {
3670                         $res = $purifier->purify($res);
3671                 }
3672
3673                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
3674                         $res = preg_replace('/<img[^>]+>/is', '', $res);
3675                 }
3676
3677                 if (strpos($res, "href=") === false)
3678                         $res = rewrite_urls($res);
3679
3680                 $charset_hack = '<head>
3681                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
3682                 </head>';
3683
3684                 $res = trim($res); if (!$res) return '';
3685
3686                 libxml_use_internal_errors(true);
3687
3688                 $doc = new DOMDocument();
3689                 $doc->loadHTML($charset_hack . $res);
3690                 $xpath = new DOMXPath($doc);
3691
3692                 $entries = $xpath->query('(//a[@href]|//img[@src])');
3693                 $br_inserted = 0;
3694
3695                 foreach ($entries as $entry) {
3696
3697                         if ($site_url) {
3698
3699                                 if ($entry->hasAttribute('href'))
3700                                         $entry->setAttribute('href',
3701                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
3702
3703                                 if ($entry->hasAttribute('src'))
3704                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
3705                                                 $entry->setAttribute('src',
3706                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
3707                         }
3708
3709                         if (strtolower($entry->nodeName) == "a") {
3710                                 $entry->setAttribute("target", "_blank");
3711                         }
3712
3713                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
3714                                 $br = $doc->createElement("br");
3715
3716                                 if ($entry->parentNode->nextSibling) {
3717                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
3718                                         $br_inserted = 1;
3719                                 }
3720
3721                         }
3722                 }
3723
3724                 $node = $doc->getElementsByTagName('body')->item(0);
3725
3726                 return $doc->saveXML($node);
3727         }
3728
3729         /**
3730          * Send by mail a digest of last articles.
3731          *
3732          * @param mixed $link The database connection.
3733          * @param integer $limit The maximum number of articles by digest.
3734          * @return boolean Return false if digests are not enabled.
3735          */
3736         function send_headlines_digests($link, $limit = 100) {
3737
3738                 if (!DIGEST_ENABLE) return false;
3739
3740                 $user_limit = DIGEST_EMAIL_LIMIT;
3741                 $days = 1;
3742
3743                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
3744
3745                 if (DB_TYPE == "pgsql") {
3746                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
3747                 } else if (DB_TYPE == "mysql") {
3748                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
3749                 }
3750
3751                 $result = db_query($link, "SELECT id,email FROM ttrss_users
3752                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
3753
3754                 while ($line = db_fetch_assoc($result)) {
3755
3756                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
3757                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
3758
3759                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
3760
3761                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
3762                                 $digest = $tuple[0];
3763                                 $headlines_count = $tuple[1];
3764                                 $affected_ids = $tuple[2];
3765                                 $digest_text = $tuple[3];
3766
3767                                 if ($headlines_count > 0) {
3768
3769                                         $mail = new PHPMailer();
3770
3771                                         $mail->PluginDir = "lib/phpmailer/";
3772                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
3773
3774                                         $mail->CharSet = "UTF-8";
3775
3776                                         $mail->From = DIGEST_FROM_ADDRESS;
3777                                         $mail->FromName = DIGEST_FROM_NAME;
3778                                         $mail->AddAddress($line["email"], $line["login"]);
3779
3780                                         if (DIGEST_SMTP_HOST) {
3781                                                 $mail->Host = DIGEST_SMTP_HOST;
3782                                                 $mail->Mailer = "smtp";
3783                                                 $mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
3784                                                 $mail->Username = DIGEST_SMTP_LOGIN;
3785                                                 $mail->Password = DIGEST_SMTP_PASSWORD;
3786                                         }
3787
3788                                         $mail->IsHTML(true);
3789                                         $mail->Subject = DIGEST_SUBJECT;
3790                                         $mail->Body = $digest;
3791                                         $mail->AltBody = $digest_text;
3792
3793                                         $rc = $mail->Send();
3794
3795                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
3796
3797                                         print "RC=$rc\n";
3798
3799                                         if ($rc && $do_catchup) {
3800                                                 print "Marking affected articles as read...\n";
3801                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
3802                                         }
3803                                 } else {
3804                                         print "No headlines\n";
3805                                 }
3806
3807                                 db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
3808                                         WHERE id = " . $line["id"]);
3809                         }
3810                 }
3811
3812                 print "All done.\n";
3813
3814         }
3815
3816         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
3817
3818                 require_once "lib/MiniTemplator.class.php";
3819
3820                 $tpl = new MiniTemplator;
3821                 $tpl_t = new MiniTemplator;
3822
3823                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
3824                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
3825
3826                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
3827                 $tpl->setVariable('CUR_TIME', date('G:i'));
3828
3829                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
3830                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
3831
3832                 $affected_ids = array();
3833
3834                 if (DB_TYPE == "pgsql") {
3835                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
3836                 } else if (DB_TYPE == "mysql") {
3837                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
3838                 }
3839
3840                 $result = db_query($link, "SELECT ttrss_entries.title,
3841                                 ttrss_feeds.title AS feed_title,
3842                                 date_updated,
3843                                 ttrss_user_entries.ref_id,
3844                                 link,
3845                                 SUBSTRING(content, 1, 120) AS excerpt,
3846                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
3847                         FROM
3848                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
3849                         WHERE
3850                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
3851                                 AND include_in_digest = true
3852                                 AND $interval_query
3853                                 AND ttrss_user_entries.owner_uid = $user_id
3854                                 AND unread = true
3855                         ORDER BY ttrss_feeds.title, date_updated DESC
3856                         LIMIT $limit");
3857
3858                 $cur_feed_title = "";
3859
3860                 $headlines_count = db_num_rows($result);
3861
3862                 $headlines = array();
3863
3864                 while ($line = db_fetch_assoc($result)) {
3865                         array_push($headlines, $line);
3866                 }
3867
3868                 for ($i = 0; $i < sizeof($headlines); $i++) {
3869
3870                         $line = $headlines[$i];
3871
3872                         array_push($affected_ids, $line["ref_id"]);
3873
3874                         $updated = make_local_datetime($link, $line['last_updated'], false,
3875                                 $user_id);
3876
3877                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
3878                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
3879                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
3880                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
3881                         $tpl->setVariable('ARTICLE_EXCERPT',
3882                                 truncate_string(strip_tags($line["excerpt"]), 100));
3883
3884                         $tpl->addBlock('article');
3885
3886                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
3887                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
3888                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
3889                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
3890 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
3891 //                              truncate_string(strip_tags($line["excerpt"]), 100));
3892
3893                         $tpl_t->addBlock('article');
3894
3895                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
3896                                 $tpl->addBlock('feed');
3897                                 $tpl_t->addBlock('feed');
3898                         }
3899
3900                 }
3901
3902                 $tpl->addBlock('digest');
3903                 $tpl->generateOutputToString($tmp);
3904
3905                 $tpl_t->addBlock('digest');
3906                 $tpl_t->generateOutputToString($tmp_t);
3907
3908                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
3909         }
3910
3911         function check_for_update($link) {
3912                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
3913                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
3914
3915                         $version_data = @fetch_file_contents($version_url);
3916
3917                         if ($version_data) {
3918                                 $version_data = json_decode($version_data, true);
3919                                 if ($version_data && $version_data['version']) {
3920
3921                                         if (version_compare(VERSION, $version_data['version']) == -1) {
3922                                                 return $version_data;
3923                                         }
3924                                 }
3925                         }
3926                 }
3927                 return false;
3928         }
3929
3930         function markArticlesById($link, $ids, $cmode) {
3931
3932                 $tmp_ids = array();
3933
3934                 foreach ($ids as $id) {
3935                         array_push($tmp_ids, "ref_id = '$id'");
3936                 }
3937
3938                 $ids_qpart = join(" OR ", $tmp_ids);
3939
3940                 if ($cmode == 0) {
3941                         db_query($link, "UPDATE ttrss_user_entries SET
3942                         marked = false,last_read = NOW()
3943                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3944                 } else if ($cmode == 1) {
3945                         db_query($link, "UPDATE ttrss_user_entries SET
3946                         marked = true
3947                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3948                 } else {
3949                         db_query($link, "UPDATE ttrss_user_entries SET
3950                         marked = NOT marked,last_read = NOW()
3951                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3952                 }
3953         }
3954
3955         function publishArticlesById($link, $ids, $cmode) {
3956
3957                 $tmp_ids = array();
3958
3959                 foreach ($ids as $id) {
3960                         array_push($tmp_ids, "ref_id = '$id'");
3961                 }
3962
3963                 $ids_qpart = join(" OR ", $tmp_ids);
3964
3965                 if ($cmode == 0) {
3966                         db_query($link, "UPDATE ttrss_user_entries SET
3967                         published = false,last_read = NOW()
3968                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3969                 } else if ($cmode == 1) {
3970                         db_query($link, "UPDATE ttrss_user_entries SET
3971                         published = true
3972                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3973                 } else {
3974                         db_query($link, "UPDATE ttrss_user_entries SET
3975                         published = NOT published,last_read = NOW()
3976                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3977                 }
3978         }
3979
3980         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
3981
3982                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3983                 if (count($ids) == 0) return;
3984
3985                 $tmp_ids = array();
3986
3987                 foreach ($ids as $id) {
3988                         array_push($tmp_ids, "ref_id = '$id'");
3989                 }
3990
3991                 $ids_qpart = join(" OR ", $tmp_ids);
3992
3993                 if ($cmode == 0) {
3994                         db_query($link, "UPDATE ttrss_user_entries SET
3995                         unread = false,last_read = NOW()
3996                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3997                 } else if ($cmode == 1) {
3998                         db_query($link, "UPDATE ttrss_user_entries SET
3999                         unread = true
4000                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4001                 } else {
4002                         db_query($link, "UPDATE ttrss_user_entries SET
4003                         unread = NOT unread,last_read = NOW()
4004                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4005                 }
4006
4007                 /* update ccache */
4008
4009                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
4010                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4011
4012                 while ($line = db_fetch_assoc($result)) {
4013                         ccache_update($link, $line["feed_id"], $owner_uid);
4014                 }
4015         }
4016
4017         function catchupArticleById($link, $id, $cmode) {
4018
4019                 if ($cmode == 0) {
4020                         db_query($link, "UPDATE ttrss_user_entries SET
4021                         unread = false,last_read = NOW()
4022                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4023                 } else if ($cmode == 1) {
4024                         db_query($link, "UPDATE ttrss_user_entries SET
4025                         unread = true
4026                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4027                 } else {
4028                         db_query($link, "UPDATE ttrss_user_entries SET
4029                         unread = NOT unread,last_read = NOW()
4030                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4031                 }
4032
4033                 $feed_id = getArticleFeed($link, $id);
4034                 ccache_update($link, $feed_id, $_SESSION["uid"]);
4035         }
4036
4037         function make_guid_from_title($title) {
4038                 return preg_replace("/[ \"\',.:;]/", "-",
4039                         mb_strtolower(strip_tags($title), 'utf-8'));
4040         }
4041
4042         function format_headline_subtoolbar($link, $feed_site_url, $feed_title,
4043                         $feed_id, $is_cat, $search, $match_on,
4044                         $search_mode, $view_mode, $error) {
4045
4046                 $page_prev_link = "viewFeedGoPage(-1)";
4047                 $page_next_link = "viewFeedGoPage(1)";
4048                 $page_first_link = "viewFeedGoPage(0)";
4049
4050                 $catchup_page_link = "catchupPage()";
4051                 $catchup_feed_link = "catchupCurrentFeed()";
4052                 $catchup_sel_link = "catchupSelection()";
4053
4054                 $archive_sel_link = "archiveSelection()";
4055                 $delete_sel_link = "deleteSelection()";
4056
4057                 $sel_all_link = "selectArticles('all')";
4058                 $sel_unread_link = "selectArticles('unread')";
4059                 $sel_none_link = "selectArticles('none')";
4060                 $sel_inv_link = "selectArticles('invert')";
4061
4062                 $tog_unread_link = "selectionToggleUnread()";
4063                 $tog_marked_link = "selectionToggleMarked()";
4064                 $tog_published_link = "selectionTogglePublished()";
4065
4066                 $reply = "<div id=\"subtoolbar_main\">";
4067
4068                 $reply .= __('Select:')."
4069                         <a href=\"#\" onclick=\"$sel_all_link\">".__('All')."</a>,
4070                         <a href=\"#\" onclick=\"$sel_unread_link\">".__('Unread')."</a>,
4071                         <a href=\"#\" onclick=\"$sel_inv_link\">".__('Invert')."</a>,
4072                         <a href=\"#\" onclick=\"$sel_none_link\">".__('None')."</a></li>";
4073
4074                 $reply .= " ";
4075
4076                 $reply .= "<select dojoType=\"dijit.form.Select\"
4077                         onchange=\"headlineActionsChange(this)\">";
4078                 $reply .= "<option value=\"false\">".__('Actions...')."</option>";
4079
4080                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection toggle:')."</option>";
4081
4082                 $reply .= "<option value=\"$tog_unread_link\">".__('Unread')."</option>
4083                         <option value=\"$tog_marked_link\">".__('Starred')."</option>
4084                         <option value=\"$tog_published_link\">".__('Published')."</option>";
4085
4086                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection:')."</option>";
4087
4088                 $reply .= "<option value=\"$catchup_sel_link\">".__('Mark as read')."</option>";
4089
4090                 if ($feed_id != "0") {
4091                         $reply .= "<option value=\"$archive_sel_link\">".__('Archive')."</option>";
4092                 } else {
4093                         $reply .= "<option value=\"$archive_sel_link\">".__('Move back')."</option>";
4094                         $reply .= "<option value=\"$delete_sel_link\">".__('Delete')."</option>";
4095
4096                 }
4097
4098                 $reply .= "<option value=\"emailArticle(false)\">".__('Forward by email').
4099                         "</option>";
4100
4101                 $rss_link = htmlspecialchars(get_self_url_prefix() .
4102                         "/backend.php?op=rss&id=$feed_id&is_cat=$is_cat&view_mode=$view_mode$search_q");
4103
4104                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Feed:')."</option>";
4105
4106                 $reply .= "<option value=\"catchupPage()\">".__('Mark as read')."</option>";
4107
4108                 $reply .= "<option value=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">".__('View as RSS')."</option>";
4109
4110                 $reply .= "</select>";
4111
4112                 $reply .= "</div>";
4113
4114                 $reply .= "<div id=\"subtoolbar_ftitle\">";
4115
4116                 if ($feed_site_url) {
4117                         $target = "target=\"_blank\"";
4118                         $reply .= "<a title=\"".__("Visit the website")."\" $target href=\"$feed_site_url\">".
4119                                 truncate_string($feed_title,30)."</a>";
4120
4121                         if ($error) {
4122                                 $reply .= " (<span class=\"error\" title=\"$error\">Error</span>)";
4123                         }
4124
4125                 } else {
4126                         if ($feed_id < -10) {
4127                                 $label_id = -11-$feed_id;
4128
4129                                 $result = db_query($link, "SELECT fg_color, bg_color
4130                                         FROM ttrss_labels2 WHERE id = '$label_id' AND owner_uid = " .
4131                                         $_SESSION["uid"]);
4132
4133                                 if (db_num_rows($result) != 0) {
4134                                         $fg_color = db_fetch_result($result, 0, "fg_color");
4135                                         $bg_color = db_fetch_result($result, 0, "bg_color");
4136
4137                                         $reply .= "<span style='background : $bg_color; color : $fg_color'>";
4138                                         $reply .= $feed_title;
4139                                         $reply .= "</span>";
4140                                 } else {
4141                                         $reply .= $feed_title;
4142                                 }
4143
4144                         } else {
4145                                 $reply .= $feed_title;
4146                         }
4147                 }
4148
4149                 if ($search) {
4150                         $search_q = "&q=$search&m=$match_on&smode=$search_mode";
4151                 } else {
4152                         $search_q = "";
4153                 }
4154
4155                 // Adaptive doesn't really make any sense for generated feeds
4156                 // All Articles is the default, so no need to insert it either
4157                 if ($view_mode == "adaptive" || $view_mode == "all_articles")
4158                         $view_mode = "";
4159                 else
4160                         $view_mode = "&view-mode=$view_mode";
4161
4162                 $reply .= "
4163                         <a href=\"#\"
4164                                 title=\"".__("View as RSS feed")."\"
4165                                 onclick=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">
4166                                 <img class=\"noborder\" style=\"vertical-align : middle\" src=\"images/feed-icon-12x12.png\"></a>";
4167
4168                 $reply .= "</div>";
4169
4170                 return $reply;
4171         }
4172
4173         function outputFeedList($link, $special = true) {
4174
4175                 $feedlist = array();
4176
4177                 $enable_cats = get_pref($link, 'ENABLE_FEED_CATS');
4178
4179                 $feedlist['identifier'] = 'id';
4180                 $feedlist['label'] = 'name';
4181                 $feedlist['items'] = array();
4182
4183                 $owner_uid = $_SESSION["uid"];
4184
4185                 /* virtual feeds */
4186
4187                 if ($special) {
4188
4189                         if ($enable_cats) {
4190                                 $cat_hidden = get_pref($link, "_COLLAPSED_SPECIAL");
4191                                 $cat = feedlist_init_cat($link, -1, $cat_hidden);
4192                         } else {
4193                                 $cat['items'] = array();
4194                         }
4195
4196                         foreach (array(-4, -3, -1, -2, 0) as $i) {
4197                                 array_push($cat['items'], feedlist_init_feed($link, $i));
4198                         }
4199
4200                         if ($enable_cats) {
4201                                 array_push($feedlist['items'], $cat);
4202                         } else {
4203                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4204                         }
4205
4206                         $result = db_query($link, "SELECT * FROM
4207                                 ttrss_labels2 WHERE owner_uid = '$owner_uid' ORDER by caption");
4208
4209                         if (db_num_rows($result) > 0) {
4210
4211                                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
4212                                         $cat_hidden = get_pref($link, "_COLLAPSED_LABELS");
4213                                         $cat = feedlist_init_cat($link, -2, $cat_hidden);
4214                                 } else {
4215                                         $cat['items'] = array();
4216                                 }
4217
4218                                 while ($line = db_fetch_assoc($result)) {
4219
4220                                         $label_id = -$line['id'] - 11;
4221                                         $count = getFeedUnread($link, $label_id);
4222
4223                                         $feed = feedlist_init_feed($link, $label_id, false, $count);
4224
4225                                         $feed['fg_color'] = $line['fg_color'];
4226                                         $feed['bg_color'] = $line['bg_color'];
4227
4228                                         array_push($cat['items'], $feed);
4229                                 }
4230
4231                                 if ($enable_cats) {
4232                                         array_push($feedlist['items'], $cat);
4233                                 } else {
4234                                         $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4235                                 }
4236                         }
4237                 }
4238
4239 /*              if (get_pref($link, 'ENABLE_FEED_CATS')) {
4240                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4241                                 $order_by_qpart = "order_id,category,unread DESC,title";
4242                         } else {
4243                                 $order_by_qpart = "order_id,category,title";
4244                         }
4245                 } else {
4246                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4247                                 $order_by_qpart = "unread DESC,title";
4248                         } else {
4249                                 $order_by_qpart = "title";
4250                         }
4251                 } */
4252
4253                 /* real feeds */
4254
4255                 if ($enable_cats)
4256                         $order_by_qpart = "ttrss_feed_categories.order_id,category,
4257                                 ttrss_feeds.order_id,title";
4258                 else
4259                         $order_by_qpart = "title";
4260
4261                 $age_qpart = getMaxAgeSubquery();
4262
4263                 $query = "SELECT ttrss_feeds.id, ttrss_feeds.title,
4264                         ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated_noms,
4265                         cat_id,last_error,
4266                         ttrss_feed_categories.title AS category,
4267                         ttrss_feed_categories.collapsed,
4268                         value AS unread
4269                         FROM ttrss_feeds LEFT JOIN ttrss_feed_categories
4270                                 ON (ttrss_feed_categories.id = cat_id)
4271                         LEFT JOIN ttrss_counters_cache
4272                                 ON
4273                                         (ttrss_feeds.id = feed_id)
4274                         WHERE
4275                                 ttrss_feeds.owner_uid = '$owner_uid'
4276                         ORDER BY $order_by_qpart";
4277
4278                 $result = db_query($link, $query);
4279
4280                 $actid = $_REQUEST["actid"];
4281
4282                 if (db_num_rows($result) > 0) {
4283
4284                         $category = "";
4285
4286                         if (!$enable_cats)
4287                                 $cat['items'] = array();
4288                         else
4289                                 $cat = false;
4290
4291                         while ($line = db_fetch_assoc($result)) {
4292
4293                                 $feed = htmlspecialchars(trim($line["title"]));
4294
4295                                 if (!$feed) $feed = "[Untitled]";
4296
4297                                 $feed_id = $line["id"];
4298                                 $unread = $line["unread"];
4299
4300                                 $cat_id = $line["cat_id"];
4301                                 $tmp_category = $line["category"];
4302                                 if (!$tmp_category) $tmp_category = __("Uncategorized");
4303
4304                                 if ($category != $tmp_category && $enable_cats) {
4305
4306                                         $category = $tmp_category;
4307
4308                                         $collapsed = sql_bool_to_bool($line["collapsed"]);
4309
4310                                         // workaround for NULL category
4311                                         if ($category == __("Uncategorized")) {
4312                                                 $collapsed = get_pref($link, "_COLLAPSED_UNCAT");
4313                                         }
4314
4315                                         if ($cat) array_push($feedlist['items'], $cat);
4316
4317                                         $cat = feedlist_init_cat($link, $cat_id, $collapsed);
4318                                 }
4319
4320                                 $updated = make_local_datetime($link, $line["updated_noms"], false);
4321
4322                                 array_push($cat['items'], feedlist_init_feed($link, $feed_id,
4323                                         $feed, $unread, $line['last_error'], $updated));
4324                         }
4325
4326                         if ($enable_cats) {
4327                                 array_push($feedlist['items'], $cat);
4328                         } else {
4329                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4330                         }
4331
4332                 }
4333
4334                 return $feedlist;
4335         }
4336
4337         function get_article_tags($link, $id, $owner_uid = 0) {
4338
4339                 global $memcache;
4340
4341                 $a_id = db_escape_string($id);
4342
4343                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4344
4345                 $query = "SELECT DISTINCT tag_name,
4346                         owner_uid as owner FROM
4347                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
4348                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
4349
4350                 $obj_id = md5("TAGS:$owner_uid:$id");
4351                 $tags = array();
4352
4353                 if ($memcache && $obj = $memcache->get($obj_id)) {
4354                         $tags = $obj;
4355                 } else {
4356                         /* check cache first */
4357
4358                         $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
4359                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4360
4361                         $tag_cache = db_fetch_result($result, 0, "tag_cache");
4362
4363                         if ($tag_cache) {
4364                                 $tags = explode(",", $tag_cache);
4365                         } else {
4366
4367                                 /* do it the hard way */
4368
4369                                 $tmp_result = db_query($link, $query);
4370
4371                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
4372                                         array_push($tags, $tmp_line["tag_name"]);
4373                                 }
4374
4375                                 /* update the cache */
4376
4377                                 $tags_str = db_escape_string(join(",", $tags));
4378
4379                                 db_query($link, "UPDATE ttrss_user_entries
4380                                         SET tag_cache = '$tags_str' WHERE ref_id = '$id'
4381                                         AND owner_uid = " . $_SESSION["uid"]);
4382                         }
4383
4384                         if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);
4385                 }
4386
4387                 return $tags;
4388         }
4389
4390         function trim_value(&$value) {
4391                 $value = trim($value);
4392         }
4393
4394         function trim_array($array) {
4395                 $tmp = $array;
4396                 array_walk($tmp, 'trim_value');
4397                 return $tmp;
4398         }
4399
4400         function tag_is_valid($tag) {
4401                 if ($tag == '') return false;
4402                 if (preg_match("/^[0-9]*$/", $tag)) return false;
4403                 if (mb_strlen($tag) > 250) return false;
4404
4405                 if (function_exists('iconv')) {
4406                         $tag = iconv("utf-8", "utf-8", $tag);
4407                 }
4408
4409                 if (!$tag) return false;
4410
4411                 return true;
4412         }
4413
4414         function render_login_form($link, $mobile = 0) {
4415                 switch ($mobile) {
4416                 case 0:
4417                         require_once "login_form.php";
4418                         break;
4419                 case 1:
4420                         require_once "mobile/login_form.php";
4421                         break;
4422                 case 2:
4423                         require_once "mobile/classic/login_form.php";
4424                 }
4425         }
4426
4427         // from http://developer.apple.com/internet/safari/faq.html
4428         function no_cache_incantation() {
4429                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
4430                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
4431                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
4432                 header("Cache-Control: post-check=0, pre-check=0", false);
4433                 header("Pragma: no-cache"); // HTTP/1.0
4434         }
4435
4436         function format_warning($msg, $id = "") {
4437                 global $link;
4438                 return "<div class=\"warning\" id=\"$id\">
4439                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4440         }
4441
4442         function format_notice($msg, $id = "") {
4443                 global $link;
4444                 return "<div class=\"notice\" id=\"$id\">
4445                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
4446         }
4447
4448         function format_error($msg, $id = "") {
4449                 global $link;
4450                 return "<div class=\"error\" id=\"$id\">
4451                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4452         }
4453
4454         function print_notice($msg) {
4455                 return print format_notice($msg);
4456         }
4457
4458         function print_warning($msg) {
4459                 return print format_warning($msg);
4460         }
4461
4462         function print_error($msg) {
4463                 return print format_error($msg);
4464         }
4465
4466
4467         function T_sprintf() {
4468                 $args = func_get_args();
4469                 return vsprintf(__(array_shift($args)), $args);
4470         }
4471
4472         function format_inline_player($link, $url, $ctype) {
4473
4474                 $entry = "";
4475
4476                 if (strpos($ctype, "audio/") === 0) {
4477
4478                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
4479                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
4480                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
4481
4482                                 $id = 'AUDIO-' . uniqid();
4483
4484                                 $entry .= "<audio id=\"$id\"\">
4485                                         <source src=\"$url\"></source>
4486                                         </audio>";
4487
4488                                 $entry .= "<span onclick=\"player(this)\"
4489                                         title=\"".__("Click to play")."\" status=\"0\"
4490                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
4491
4492                         } else {
4493
4494                                 $entry .= "<object type=\"application/x-shockwave-flash\"
4495                                         data=\"extras/button/musicplayer.swf?song_url=$url\"
4496                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
4497                                         <param name=\"movie\"
4498                                                 value=\"extras/button/musicplayer.swf?song_url=$url\" />
4499                                         </object>";
4500                         }
4501                 }
4502
4503                 $filename = substr($url, strrpos($url, "/")+1);
4504
4505                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4506                         $filename . " (" . $ctype . ")" . "</a>";
4507
4508                 return $entry;
4509         }
4510
4511         function format_article($link, $id, $feed_id, $mark_as_read = true,
4512                 $zoom_mode = false) {
4513
4514                 $rv = array();
4515
4516                 $rv['id'] = $id;
4517
4518                 /* we can figure out feed_id from article id anyway, why do we
4519                  * pass feed_id here? let's ignore the argument :( */
4520
4521                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4522                         WHERE ref_id = '$id'");
4523
4524                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4525
4526                 $rv['feed_id'] = $feed_id;
4527
4528                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
4529
4530                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
4531                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
4532
4533                 if (db_num_rows($result) == 1) {
4534                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4535                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
4536                 } else {
4537                         $rtl_content = false;
4538                         $always_display_enclosures = false;
4539                 }
4540
4541                 if ($rtl_content) {
4542                         $rtl_tag = "dir=\"RTL\"";
4543                         $rtl_class = "RTL";
4544                 } else {
4545                         $rtl_tag = "";
4546                         $rtl_class = "";
4547                 }
4548
4549                 if ($mark_as_read) {
4550                         $result = db_query($link, "UPDATE ttrss_user_entries
4551                                 SET unread = false,last_read = NOW()
4552                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4553
4554                         ccache_update($link, $feed_id, $_SESSION["uid"]);
4555                 }
4556
4557                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
4558                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
4559                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
4560                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
4561                         num_comments,
4562                         author,
4563                         orig_feed_id,
4564                         note
4565                         FROM ttrss_entries,ttrss_user_entries
4566                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
4567
4568                 if ($result) {
4569
4570                         $line = db_fetch_assoc($result);
4571
4572                         if ($line["icon_url"]) {
4573                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
4574                         } else {
4575                                 $feed_icon = "&nbsp;";
4576                         }
4577
4578                         $feed_site_url = $line['site_url'];
4579
4580                         $num_comments = $line["num_comments"];
4581                         $entry_comments = "";
4582
4583                         if ($num_comments > 0) {
4584                                 if ($line["comments"]) {
4585                                         $comments_url = $line["comments"];
4586                                 } else {
4587                                         $comments_url = $line["link"];
4588                                 }
4589                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
4590                         } else {
4591                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
4592                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
4593                                 }
4594                         }
4595
4596                         if ($zoom_mode) {
4597                                 header("Content-Type: text/html");
4598                                 $rv['content'] .= "<html><head>
4599                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
4600                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
4601                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
4602                                         </head><body>";
4603                         }
4604
4605                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
4606                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
4607
4608                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
4609
4610                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
4611                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
4612
4613                         $entry_author = $line["author"];
4614
4615                         if ($entry_author) {
4616                                 $entry_author = __(" - ") . $entry_author;
4617                         }
4618
4619                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
4620                                 false, true);
4621
4622                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
4623
4624                         if ($line["link"]) {
4625                                 $rv['content'] .= "<div clear='both'><a target='_blank'
4626                                         title=\"".htmlspecialchars($line['title'])."\"
4627                                         href=\"" .
4628                                         $line["link"] . "\">" .
4629                                         truncate_string($line["title"], 100) .
4630                                         "<span class='author'>$entry_author</span></a></div>";
4631                         } else {
4632                                 $rv['content'] .= "<div clear='both'>" . $line["title"] . "$entry_author</div>";
4633                         }
4634
4635                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
4636
4637                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
4638
4639                         $rv['content'] .= "<div style='float : right'>
4640                                 <img src='".theme_image($link, 'images/tag.png')."'
4641                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
4642
4643                         if (!$zoom_mode) {
4644                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
4645                                         <a title=\"".__('Edit tags for this article')."\"
4646                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
4647
4648                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
4649                                                 class='tagsPic' style=\"cursor : pointer\"
4650                                                 onclick=\"postOpenInNewTab(event, $id)\"
4651                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
4652
4653                                 //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
4654
4655                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-pub-note.png')."\"
4656                                                 class='tagsPic' style=\"cursor : pointer\"
4657                                                 onclick=\"editArticleNote($id)\"
4658                                                 alt='PubNote' title='".__('Edit article note')."'>";
4659
4660                                 if (DIGEST_ENABLE) {
4661                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
4662                                                 class='tagsPic' style=\"cursor : pointer\"
4663                                                 onclick=\"emailArticle($id)\"
4664                                                 alt='Zoom' title='".__('Forward by email')."'>";
4665                                 }
4666
4667                                 if (ENABLE_TWEET_BUTTON) {
4668                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
4669                                                         class='tagsPic' style=\"cursor : pointer\"
4670                                                         onclick=\"tweetArticle($id)\"
4671                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
4672                                 }
4673
4674                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
4675                                                 class='tagsPic' style=\"cursor : pointer\"
4676                                                 onclick=\"closeArticlePanel($id)\"
4677                                                 alt='Zoom' title='".__('Close this panel')."'>";
4678
4679                         } else {
4680                                 $tags_str = strip_tags($tags_str);
4681                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
4682                         }
4683                         $rv['content'] .= "</div>";
4684                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
4685
4686                         if ($line["orig_feed_id"]) {
4687
4688                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
4689                                         WHERE id = ".$line["orig_feed_id"]);
4690
4691                                 if (db_num_rows($tmp_result) != 0) {
4692
4693                                         $rv['content'] .= "<div clear='both'>";
4694                                         $rv['content'] .= __("Originally from:");
4695
4696                                         $rv['content'] .= "&nbsp;";
4697
4698                                         $tmp_line = db_fetch_assoc($tmp_result);
4699
4700                                         $rv['content'] .= "<a target='_blank'
4701                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
4702                                                 $tmp_line['title'] . "</a>";
4703
4704                                         $rv['content'] .= "&nbsp;";
4705
4706                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
4707                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
4708
4709                                         $rv['content'] .= "</div>";
4710                                 }
4711                         }
4712
4713                         $rv['content'] .= "</div>";
4714
4715                         $rv['content'] .= "<div class=\"postIcon\">" .
4716                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
4717                                 href=\"".htmlspecialchars($feed_site_url)."\">".
4718                                 $feed_icon . "</a></div>";
4719
4720                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
4721                                 if ($line['note']) {
4722                                         $rv['content'] .= format_article_note($id, $line['note']);
4723                                 }
4724                         $rv['content'] .= "</div>";
4725
4726                         $rv['content'] .= "<div class=\"postContent\">";
4727
4728                         $article_content = sanitize_rss($link, $line["content"], false, false,
4729                                 $feed_site_url);
4730
4731                         $rv['content'] .= $article_content;
4732
4733                         $rv['content'] .= format_article_enclosures($link, $id,
4734                                 $always_display_enclosures, $article_content);
4735
4736                         $rv['content'] .= "</div>";
4737
4738                         $rv['content'] .= "</div>";
4739
4740                 }
4741
4742                 if ($zoom_mode) {
4743                         $rv['content'] .= "
4744                                 <div style=\"text-align : center\">
4745                                 <button onclick=\"return window.close()\">".
4746                                         __("Close this window")."</button></div>";
4747                         $rv['content'] .= "</body></html>";
4748                 }
4749
4750                 return $rv;
4751
4752         }
4753
4754         function format_headlines_list($link, $feed, $subop, $view_mode, $limit, $cat_view,
4755                                         $next_unread_feed, $offset, $vgr_last_feed = false,
4756                                         $override_order = false) {
4757
4758                 $disable_cache = false;
4759
4760                 $reply = array();
4761
4762                 $timing_info = getmicrotime();
4763
4764                 $topmost_article_ids = array();
4765
4766                 if (!$offset) {
4767                         $offset = 0;
4768                 }
4769
4770                 if ($subop == "undefined") $subop = "";
4771
4772                 $subop_split = split(":", $subop);
4773
4774                 if ($subop == "CatchupSelected") {
4775                         $ids = split(",", db_escape_string($_REQUEST["ids"]));
4776                         $cmode = sprintf("%d", $_REQUEST["cmode"]);
4777
4778                         catchupArticlesById($link, $ids, $cmode);
4779                 }
4780
4781                 if ($subop == "ForceUpdate" && sprintf("%d", $feed) > 0) {
4782                         update_rss_feed($link, $feed, true);
4783                 }
4784
4785                 if ($subop == "MarkAllRead")  {
4786                         catchup_feed($link, $feed, $cat_view);
4787
4788                         if (get_pref($link, 'ON_CATCHUP_SHOW_NEXT_FEED')) {
4789                                 if ($next_unread_feed) {
4790                                         $feed = $next_unread_feed;
4791                                 }
4792                         }
4793                 }
4794
4795                 if ($subop_split[0] == "MarkAllReadGR")  {
4796                         catchup_feed($link, $subop_split[1], false);
4797                 }
4798
4799                 // FIXME: might break tag display?
4800
4801                 if ($feed > 0 && !$cat_view) {
4802                         $result = db_query($link,
4803                                 "SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");
4804
4805                         if (db_num_rows($result) == 0) {
4806                                 $reply['content'] = "<div align='center'>".__('Feed not found.')."</div>";
4807                         }
4808                 }
4809
4810                 if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
4811
4812                         $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
4813                                 WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
4814
4815                         if (db_num_rows($result) == 1) {
4816                                 $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4817                         } else {
4818                                 $rtl_content = false;
4819                         }
4820
4821                         if ($rtl_content) {
4822                                 $rtl_tag = "dir=\"RTL\"";
4823                         } else {
4824                                 $rtl_tag = "";
4825                         }
4826                 } else {
4827                         $rtl_tag = "";
4828                         $rtl_content = false;
4829                 }
4830
4831                 /// START /////////////////////////////////////////////////////////////////////////////////
4832
4833                 @$search = db_escape_string($_REQUEST["query"]);
4834
4835                 if ($search) {
4836                         $disable_cache = true;
4837                 }
4838
4839                 @$search_mode = db_escape_string($_REQUEST["search_mode"]);
4840                 @$match_on = db_escape_string($_REQUEST["match_on"]);
4841
4842                 if (!$match_on) {
4843                         $match_on = "both";
4844                 }
4845
4846                 $real_offset = $offset * $limit;
4847
4848                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H0", $timing_info);
4849
4850                 $qfh_ret = queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view,
4851                         $search, $search_mode, $match_on, $override_order, $real_offset);
4852
4853                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H1", $timing_info);
4854
4855                 $result = $qfh_ret[0];
4856                 $feed_title = $qfh_ret[1];
4857                 $feed_site_url = $qfh_ret[2];
4858                 $last_error = $qfh_ret[3];
4859
4860                 $vgroup_last_feed = $vgr_last_feed;
4861
4862                 /// STOP //////////////////////////////////////////////////////////////////////////////////
4863
4864                 if (!$offset) {
4865
4866                         if (db_num_rows($result) > 0) {
4867                                 $reply['toolbar'] = format_headline_subtoolbar($link, $feed_site_url, $feed_title,
4868                                         $feed, $cat_view, $search, $match_on, $search_mode, $view_mode,
4869                                         $last_error);
4870                         }
4871                 }
4872
4873                 $headlines_count = db_num_rows($result);
4874
4875                 if (db_num_rows($result) > 0) {
4876
4877                         $lnum = $limit*$offset;
4878
4879                         $num_unread = 0;
4880                         $cur_feed_title = '';
4881
4882                         $fresh_intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE") * 60 * 60;
4883
4884                         while ($line = db_fetch_assoc($result)) {
4885
4886                                 $class = ($lnum % 2) ? "even" : "odd";
4887
4888                                 $id = $line["id"];
4889                                 $feed_id = $line["feed_id"];
4890
4891                                 $labels = get_article_labels($link, $id);
4892
4893                                 $labels_str = "<span id=\"HLLCTR-$id\">";
4894                                 $labels_str .= format_article_labels($labels, $id);
4895                                 $labels_str .= "</span>";
4896
4897                                 if (count($topmost_article_ids) < 3) {
4898                                         array_push($topmost_article_ids, $id);
4899                                 }
4900
4901                                 if ($line["last_read"] == "" && !sql_bool_to_bool($line["unread"])) {
4902
4903                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
4904                                                 theme_image($link, 'images/updated.png')."\"
4905                                                 alt=\"Updated\">";
4906                                 } else {
4907                                         $update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\"
4908                                                 alt=\"Updated\">";
4909                                 }
4910
4911                                 if (sql_bool_to_bool($line["unread"]) &&
4912                                         time() - strtotime($line["updated_noms"]) < $fresh_intl) {
4913
4914                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
4915                                                 theme_image($link, 'images/fresh_sign.png')."\" alt=\"Fresh\">";
4916                                 }
4917
4918                                 if ($line["unread"] == "t" || $line["unread"] == "1") {
4919                                         $class .= " Unread";
4920                                         ++$num_unread;
4921                                         $is_unread = true;
4922                                 } else {
4923                                         $is_unread = false;
4924                                 }
4925
4926                                 if ($line["marked"] == "t" || $line["marked"] == "1") {
4927                                         $marked_pic = "<img id=\"FMPIC-$id\"
4928                                                 src=\"".theme_image($link, 'images/mark_set.png')."\"
4929                                                 class=\"markedPic\" alt=\"Unstar article\"
4930                                                 onclick='javascript:tMark($id)'>";
4931                                 } else {
4932                                         $marked_pic = "<img id=\"FMPIC-$id\"
4933                                                 src=\"".theme_image($link, 'images/mark_unset.png')."\"
4934                                                 class=\"markedPic\" alt=\"Star article\"
4935                                                 onclick='javascript:tMark($id)'>";
4936                                 }
4937
4938                                 if ($line["published"] == "t" || $line["published"] == "1") {
4939                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
4940                                                 'images/pub_set.png')."\"
4941                                                 class=\"markedPic\"
4942                                                 alt=\"Unpublish article\" onclick='javascript:tPub($id)'>";
4943                                 } else {
4944                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
4945                                                 'images/pub_unset.png')."\"
4946                                                 class=\"markedPic\"
4947                                                 alt=\"Publish article\" onclick='javascript:tPub($id)'>";
4948                                 }
4949
4950 #                               $content_link = "<a target=\"_blank\" href=\"".$line["link"]."\">" .
4951 #                                       $line["title"] . "</a>";
4952
4953 #                               $content_link = "<a
4954 #                                       href=\"" . htmlspecialchars($line["link"]) . "\"
4955 #                                       onclick=\"view($id,$feed_id);\">" .
4956 #                                       $line["title"] . "</a>";
4957
4958 #                               $content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
4959 #                                       $line["title"] . "</a>";
4960
4961                                 $updated_fmt = make_local_datetime($link, $line["updated_noms"], false);
4962
4963                                 if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
4964                                         $content_preview = truncate_string(strip_tags($line["content_preview"]),
4965                                                 100);
4966                                 }
4967
4968                                 $score = $line["score"];
4969
4970                                 $score_pic = theme_image($link,
4971                                         "images/" . get_score_pic($score));
4972
4973 /*                              $score_title = __("(Click to change)");
4974                                 $score_pic = "<img class='hlScorePic' src=\"images/$score_pic\"
4975                                         onclick=\"adjustArticleScore($id, $score)\" title=\"$score $score_title\">"; */
4976
4977                                 $score_pic = "<img class='hlScorePic' src=\"$score_pic\"
4978                                         title=\"$score\">";
4979
4980                                 if ($score > 500) {
4981                                         $hlc_suffix = "H";
4982                                 } else if ($score < -100) {
4983                                         $hlc_suffix = "L";
4984                                 } else {
4985                                         $hlc_suffix = "";
4986                                 }
4987
4988                                 $entry_author = $line["author"];
4989
4990                                 if ($entry_author) {
4991                                         $entry_author = " - $entry_author";
4992                                 }
4993
4994                                 $has_feed_icon = feed_has_icon($feed_id);
4995
4996                                 if ($has_feed_icon) {
4997                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
4998                                 } else {
4999                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/feed-icon-12x12.png\" alt=\"\">";
5000                                 }
5001
5002                                 if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
5003
5004                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5005                                                 if ($feed_id != $vgroup_last_feed && $line["feed_title"]) {
5006
5007                                                         $cur_feed_title = $line["feed_title"];
5008                                                         $vgroup_last_feed = $feed_id;
5009
5010                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5011
5012                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5013
5014                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5015                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5016                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5017                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5018
5019                                                 }
5020                                         }
5021
5022                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5023                                                 onmouseout='postMouseOut($id)'";
5024
5025                                         $reply['content'] .= "<div class='$class' id='RROW-$id' $mouseover_attrs>";
5026
5027                                         $reply['content'] .= "<div class='hlUpdPic'>$update_pic</div>";
5028
5029                                         $reply['content'] .= "<div class='hlLeft'>";
5030
5031                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"tSR(this)\"
5032                                                         id=\"RCHK-$id\">";
5033
5034                                         $reply['content'] .= "$marked_pic";
5035                                         $reply['content'] .= "$published_pic";
5036
5037                                         $reply['content'] .= "</div>";
5038
5039                                         $reply['content'] .= "<div onclick='return hlClicked(event, $id)'
5040                                                 class=\"hlTitle\"><span class='hlContent$hlc_suffix'>";
5041                                         $reply['content'] .= "<a id=\"RTITLE-$id\"
5042                                                 href=\"" . htmlspecialchars($line["link"]) . "\"
5043                                                 onclick=\"return false;\">" .
5044                                                 $line["title"];
5045
5046                                         if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5047                                                 if ($content_preview) {
5048                                                         $reply['content'] .= "<span class=\"contentPreview\"> - $content_preview</span>";
5049                                                 }
5050                                         }
5051
5052                                         $reply['content'] .= "</a></span>";
5053
5054                                         $reply['content'] .= $labels_str;
5055
5056                                         /* if (!get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5057                                                 if (@$line["feed_title"]) {
5058                                                         print "<span class=\"hlFeed\">
5059                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5060                                                                 $line["feed_title"]."</a>)
5061                                                         </span>";
5062                                                 }
5063                                         } */
5064
5065                                         $reply['content'] .= "</div>";
5066
5067                                         $reply['content'] .= "<div class=\"hlRight\">";
5068                                         $reply['content'] .= "<span class=\"hlUpdated\">$updated_fmt</span>";
5069                                         $reply['content'] .= $score_pic;
5070
5071                                         if ($line["feed_title"] && !get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5072
5073                                                 $reply['content'] .= "<span onclick=\"viewfeed($feed_id)\"
5074                                                         title=\"".htmlspecialchars($line['feed_title'])."\">
5075                                                         $feed_icon_img<span>";
5076                                         }
5077
5078                                         $reply['content'] .= "</div>";
5079                                         $reply['content'] .= "</div>";
5080
5081                                 } else {
5082
5083                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED') && $line["feed_title"]) {
5084                                                 if ($feed_id != $vgroup_last_feed) {
5085
5086                                                         $cur_feed_title = $line["feed_title"];
5087                                                         $vgroup_last_feed = $feed_id;
5088
5089                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5090
5091                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5092
5093                                                         $has_feed_icon = feed_has_icon($feed_id);
5094
5095                                                         if ($has_feed_icon) {
5096                                                                 $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5097                                                         } else {
5098                                                                 //$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
5099                                                         }
5100
5101                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5102                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5103                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5104                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5105                                                 }
5106                                         }
5107
5108                                         $expand_cdm = get_pref($link, 'CDM_EXPANDED');
5109
5110                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5111                                                 onmouseout='postMouseOut($id)'";
5112
5113                                         $reply['content'] .= "<div class=\"$class\"
5114                                                 id=\"RROW-$id\" $mouseover_attrs'>";
5115
5116                                         $reply['content'] .= "<div class=\"cdmHeader\">";
5117
5118                                         $reply['content'] .= "<div style='float : right'>";
5119                                         $reply['content'] .= "<span class='updated'>$updated_fmt</span>";
5120                                         $reply['content'] .= "$score_pic";
5121
5122                                         if (!get_pref($link, "VFEED_GROUP_BY_FEED") && $line["feed_title"]) {
5123                                                 $reply['content'] .= "<span style=\"cursor : pointer\"
5124                                                         title=\"".htmlspecialchars($line["feed_title"])."\"
5125                                                         onclick=\"viewfeed($feed_id)\">$feed_icon_img</span>";
5126                                         }
5127                                         $reply['content'] .= "<div class=\"updPic\">$update_pic</div>";
5128
5129                                         $reply['content'] .= "</div>";
5130
5131                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"toggleSelectRowById(this,
5132                                                         'RROW-$id')\" id=\"RCHK-$id\"/>";
5133
5134                                         $reply['content'] .= "$marked_pic";
5135                                         $reply['content'] .= "$published_pic";
5136
5137                                         $reply['content'] .= "<span id=\"RTITLE-$id\"
5138                                                 onclick=\"return cdmClicked(event, $id);\"
5139                                                 class=\"titleWrap$hlc_suffix\">
5140                                                 <a class=\"title\"
5141                                                 title=\"".htmlspecialchars($line['title'])."\"
5142                                                 target=\"_blank\" href=\"".
5143                                                 htmlspecialchars($line["link"])."\">".
5144                                                 truncate_string($line["title"], 100) .
5145                                                 " $entry_author</a>";
5146
5147                                         $reply['content'] .= $labels_str;
5148
5149                                         if (!$expand_cdm)
5150                                                 $content_hidden = "style=\"display : none\"";
5151                                         else
5152                                                 $excerpt_hidden = "style=\"display : none\"";
5153
5154                                         $reply['content'] .= "<span $excerpt_hidden
5155                                                 id=\"CEXC-$id\" class=\"cdmExcerpt\"> - $content_preview</span>";
5156
5157                                         $reply['content'] .= "</span>";
5158
5159                                         $reply['content'] .= "</div>";
5160
5161                                         $reply['content'] .= "<div class=\"cdmContent\" $content_hidden
5162                                                 onclick=\"return cdmClicked(event, $id);\"
5163                                                 id=\"CICD-$id\">";
5164
5165                                         $reply['content'] .= "<div class=\"cdmContentInner\">";
5166
5167                         if ($line["orig_feed_id"]) {
5168
5169                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
5170                                         WHERE id = ".$line["orig_feed_id"]);
5171
5172                                                 if (db_num_rows($tmp_result) != 0) {
5173
5174                                                         $reply['content'] .= "<div clear='both'>";
5175                                                         $reply['content'] .= __("Originally from:");
5176
5177                                                         $reply['content'] .= "&nbsp;";
5178
5179                                                         $tmp_line = db_fetch_assoc($tmp_result);
5180
5181                                                         $reply['content'] .= "<a target='_blank'
5182                                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
5183                                                                 $tmp_line['title'] . "</a>";
5184
5185                                                         $reply['content'] .= "&nbsp;";
5186
5187                                                         $reply['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
5188                                                         $reply['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
5189
5190                                                         $reply['content'] .= "</div>";
5191                                                 }
5192                                         }
5193
5194                                         // FIXME: make this less of a hack
5195
5196                                         $feed_site_url = false;
5197
5198                                         if ($line["feed_id"]) {
5199                                                 $tmp_result = db_query($link, "SELECT site_url FROM ttrss_feeds
5200                                                         WHERE id = " . $line["feed_id"]);
5201
5202                                                 if (db_num_rows($tmp_result) == 1) {
5203                                                         $feed_site_url = db_fetch_result($tmp_result, 0, "site_url");
5204                                                 }
5205                                         }
5206
5207                                         if ($expand_cdm) {
5208                                                 $article_content = sanitize_rss($link, $line["content_preview"],
5209                                                         false, false, $feed_site_url);
5210
5211                                                 if (!$article_content) $article_content = "&nbsp;";
5212                                         } else {
5213                                                 $article_content = '';
5214                                         }
5215
5216                                         $reply['content'] .= "<div id=\"POSTNOTE-$id\">";
5217                                         if ($line['note']) {
5218                                                 $reply['content'] .= format_article_note($id, $line['note']);
5219                                         }
5220                                         $reply['content'] .= "</div>";
5221
5222                                         $reply['content'] .= "<span id=\"CWRAP-$id\">$article_content</span>";
5223
5224                                         $tmp_result = db_query($link, "SELECT always_display_enclosures FROM
5225                                                 ttrss_feeds WHERE id = ".
5226                                                 (($line['feed_id'] == null) ? $line['orig_feed_id'] :
5227                                                                 $line['feed_id'])." AND owner_uid = ".$_SESSION["uid"]);
5228
5229                                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($tmp_result,
5230                                                 0, "always_display_enclosures"));
5231
5232                                         $reply['content'] .= format_article_enclosures($link, $id, $always_display_enclosures,
5233                                                 $article_content);
5234
5235                                         $reply['content'] .= "</div>";
5236
5237                                         $reply['content'] .= "<div class=\"cdmFooter\">";
5238
5239                                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
5240
5241                                         $reply['content'] .= "<img src='".theme_image($link,
5242                                                         'images/tag.png')."' alt='Tags' title='Tags'>
5243                                                 <span id=\"ATSTR-$id\">$tags_str</span>
5244                                                 <a title=\"".__('Edit tags for this article')."\"
5245                                                 href=\"#\" onclick=\"editArticleTags($id, $feed_id, true)\">(+)</a>";
5246
5247                                         $reply['content'] .= "<div style=\"float : right\">";
5248
5249                                         $reply['content'] .= "<img src=\"images/art-zoom.png\"
5250                                                 onclick=\"zoomToArticle(event, $id)\"
5251                                                 style=\"cursor : pointer\"
5252                                                 alt='Zoom'
5253                                                 title='".__('Open article in new tab')."'>";
5254
5255                                         //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
5256
5257                                         $reply['content'] .= "<img src=\"images/art-pub-note.png\"
5258                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5259                                                 onclick=\"editArticleNote($id)\"
5260                                                 alt='PubNote' title='".__('Edit article note')."'>";
5261
5262                                         if (DIGEST_ENABLE) {
5263                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
5264                                                         style=\"cursor : pointer\"
5265                                                         onclick=\"emailArticle($id)\"
5266                                                         alt='Zoom' title='".__('Forward by email')."'>";
5267                                         }
5268
5269                                         if (ENABLE_TWEET_BUTTON) {
5270                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
5271                                                         class='tagsPic' style=\"cursor : pointer\"
5272                                                         onclick=\"tweetArticle($id)\"
5273                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
5274                                         }
5275
5276                                         $reply['content'] .= "<img src=\"images/digest_checkbox.png\"
5277                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5278                                                 onclick=\"dismissArticle($id)\"
5279                                                 alt='Dismiss' title='".__('Dismiss article')."'>";
5280
5281                                         $reply['content'] .= "</div>";
5282                                         $reply['content'] .= "</div>";
5283
5284                                         $reply['content'] .= "</div>";
5285
5286                                         $reply['content'] .= "</div>";
5287
5288                                 }
5289
5290                                 ++$lnum;
5291                         }
5292
5293                 } else {
5294                         $message = "";
5295
5296                         switch ($view_mode) {
5297                                 case "unread":
5298                                         $message = __("No unread articles found to display.");
5299                                         break;
5300                                 case "updated":
5301                                         $message = __("No updated articles found to display.");
5302                                         break;
5303                                 case "marked":
5304                                         $message = __("No starred articles found to display.");
5305                                         break;
5306                                 default:
5307                                         if ($feed < -10) {
5308                                                 $message = __("No articles found to display. You can assign articles to labels manually (see the Actions menu above) or use a filter.");
5309                                         } else {
5310                                                 $message = __("No articles found to display.");
5311                                         }
5312                         }
5313
5314                         if (!$offset && $message) {
5315                                 $reply['content'] .= "<div class='whiteBox'>$message";
5316
5317                                 $reply['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
5318
5319                                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
5320                                         WHERE owner_uid = " . $_SESSION['uid']);
5321
5322                                 $last_updated = db_fetch_result($result, 0, "last_updated");
5323                                 $last_updated = make_local_datetime($link, $last_updated, false);
5324
5325                                 $reply['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
5326
5327                                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
5328                                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
5329
5330                                 $num_errors = db_fetch_result($result, 0, "num_errors");
5331
5332                                 if ($num_errors > 0) {
5333                                         $reply['content'] .= "<br/>";
5334                                         $reply['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
5335                                                 __('Some feeds have update errors (click for details)')."</a>";
5336                                 }
5337                                 $reply['content'] .= "</span></p></div>";
5338                         }
5339                 }
5340
5341 #               if (!$offset) {
5342 #                       if ($headlines_count > 0) print "</div>";
5343 #                       print "</div>";
5344 #               }
5345
5346                 #print "]]></content>";
5347
5348                 return array($topmost_article_ids, $headlines_count, $feed, $disable_cache,
5349                         $vgroup_last_feed, $reply['content'], $reply['toolbar']);
5350         }
5351
5352 // from here: http://www.roscripts.com/Create_tag_cloud-71.html
5353
5354         function printTagCloud($link) {
5355
5356                 $query = "SELECT tag_name, COUNT(post_int_id) AS count
5357                         FROM ttrss_tags WHERE owner_uid = ".$_SESSION["uid"]."
5358                         GROUP BY tag_name ORDER BY count DESC LIMIT 50";
5359
5360                 $result = db_query($link, $query);
5361
5362                 $tags = array();
5363
5364                 while ($line = db_fetch_assoc($result)) {
5365                         $tags[$line["tag_name"]] = $line["count"];
5366                 }
5367
5368                 ksort($tags);
5369
5370                 $max_size = 32; // max font size in pixels
5371                 $min_size = 11; // min font size in pixels
5372
5373                 // largest and smallest array values
5374                 $max_qty = max(array_values($tags));
5375                 $min_qty = min(array_values($tags));
5376
5377                 // find the range of values
5378                 $spread = $max_qty - $min_qty;
5379                 if ($spread == 0) { // we don't want to divide by zero
5380                                 $spread = 1;
5381                 }
5382
5383                 // set the font-size increment
5384                 $step = ($max_size - $min_size) / ($spread);
5385
5386                 // loop through the tag array
5387                 foreach ($tags as $key => $value) {
5388                         // calculate font-size
5389                         // find the $value in excess of $min_qty
5390                         // multiply by the font-size increment ($size)
5391                         // and add the $min_size set above
5392                         $size = round($min_size + (($value - $min_qty) * $step));
5393
5394                         $key_escaped = str_replace("'", "\\'", $key);
5395
5396                         echo "<a href=\"javascript:viewfeed('$key_escaped') \" style=\"font-size: " .
5397                                 $size . "px\" title=\"$value articles tagged with " .
5398                                 $key . '">' . $key . '</a> ';
5399                 }
5400         }
5401
5402         function print_checkpoint($n, $s) {
5403                 $ts = getmicrotime();
5404                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
5405                 return $ts;
5406         }
5407
5408         function sanitize_tag($tag) {
5409                 $tag = trim($tag);
5410
5411                 $tag = mb_strtolower($tag, 'utf-8');
5412
5413                 $tag = preg_replace('/[\"\+\>\<]/', "", $tag);
5414
5415 //              $tag = str_replace('"', "", $tag);
5416 //              $tag = str_replace("+", " ", $tag);
5417                 $tag = str_replace("technorati tag: ", "", $tag);
5418
5419                 return $tag;
5420         }
5421
5422         function get_self_url_prefix() {
5423
5424                 $url_path = "";
5425
5426                 if ($_SERVER['HTTPS'] != "on") {
5427                         $url_path = "http://";
5428                 } else {
5429                         $url_path = "https://";
5430                 }
5431
5432                 $url_path .= $_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']);
5433
5434                 return $url_path;
5435
5436         }
5437         function opml_publish_url($link){
5438
5439                 $url_path = get_self_url_prefix();
5440                 $url_path .= "/opml.php?op=publish&key=" .
5441                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
5442
5443                 return $url_path;
5444         }
5445
5446         /**
5447          * Purge a feed contents, marked articles excepted.
5448          *
5449          * @param mixed $link The database connection.
5450          * @param integer $id The id of the feed to purge.
5451          * @return void
5452          */
5453         function clear_feed_articles($link, $id) {
5454
5455                 if ($id != 0) {
5456                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5457                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5458                 } else {
5459                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5460                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5461                 }
5462
5463                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
5464                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
5465
5466                 ccache_update($link, $id, $_SESSION['uid']);
5467         } // function clear_feed_articles
5468
5469         /**
5470          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
5471          *
5472          * @return string The Mozilla Firefox feed adding URL.
5473          */
5474         function add_feed_url() {
5475                 $url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
5476                 $url_path .= "?op=pref-feeds&quiet=1&subop=add&feed_url=%s";
5477                 return $url_path;
5478         } // function add_feed_url
5479
5480         /**
5481          * Encrypt a password in SHA1.
5482          *
5483          * @param string $pass The password to encrypt.
5484          * @param string $login A optionnal login.
5485          * @return string The encrypted password.
5486          */
5487         function encrypt_password($pass, $login = '') {
5488                 if ($login) {
5489                         return "SHA1X:" . sha1("$login:$pass");
5490                 } else {
5491                         return "SHA1:" . sha1($pass);
5492                 }
5493         } // function encrypt_password
5494
5495         /**
5496          * Update a feed batch.
5497          * Used by daemons to update n feeds by run.
5498          * Only update feed needing a update, and not being processed
5499          * by another process.
5500          *
5501          * @param mixed $link Database link
5502          * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
5503          * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
5504          * @param boolean $debug Set to false to disable debug output. Default to true.
5505          * @return void
5506          */
5507         function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
5508                 // Process all other feeds using last_updated and interval parameters
5509
5510                 // Test if the user has loggued in recently. If not, it does not update its feeds.
5511                 if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
5512                         if (DB_TYPE == "pgsql") {
5513                                 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
5514                         } else {
5515                                 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
5516                         }
5517                 } else {
5518                         $login_thresh_qpart = "";
5519                 }
5520
5521                 // Test if the feed need a update (update interval exceded).
5522                 if (DB_TYPE == "pgsql") {
5523                         $update_limit_qpart = "AND ((
5524                                         ttrss_feeds.update_interval = 0
5525                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
5526                                 ) OR (
5527                                         ttrss_feeds.update_interval > 0
5528                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
5529                                 ) OR ttrss_feeds.last_updated IS NULL)";
5530                 } else {
5531                         $update_limit_qpart = "AND ((
5532                                         ttrss_feeds.update_interval = 0
5533                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
5534                                 ) OR (
5535                                         ttrss_feeds.update_interval > 0
5536                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
5537                                 ) OR ttrss_feeds.last_updated IS NULL)";
5538                 }
5539
5540                 // Test if feed is currently being updated by another process.
5541                 if (DB_TYPE == "pgsql") {
5542                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
5543                 } else {
5544                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
5545                 }
5546
5547                 // Test if there is a limit to number of updated feeds
5548                 $query_limit = "";
5549                 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
5550
5551                 $random_qpart = sql_random_function();
5552
5553                 // We search for feed needing update.
5554                 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
5555                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
5556                                 ttrss_feeds.update_interval
5557                         FROM
5558                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
5559                         WHERE
5560                                 ttrss_feeds.owner_uid = ttrss_users.id
5561                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
5562                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
5563                                 $login_thresh_qpart $update_limit_qpart
5564                          $updstart_thresh_qpart
5565                         ORDER BY $random_qpart $query_limit");
5566
5567                 $user_prefs_cache = array();
5568
5569                 if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
5570
5571                 // Here is a little cache magic in order to minimize risk of double feed updates.
5572                 $feeds_to_update = array();
5573                 while ($line = db_fetch_assoc($result)) {
5574                         $feeds_to_update[$line['id']] = $line;
5575                 }
5576
5577                 // We update the feed last update started date before anything else.
5578                 // There is no lag due to feed contents downloads
5579                 // It prevent an other process to update the same feed.
5580                 $feed_ids = array_keys($feeds_to_update);
5581                 if($feed_ids) {
5582                         db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
5583                                 WHERE id IN (%s)", implode(',', $feed_ids)));
5584                 }
5585
5586                 // For each feed, we call the feed update function.
5587                 while ($line = array_pop($feeds_to_update)) {
5588
5589                         if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
5590
5591                         update_rss_feed($link, $line["id"], true);
5592
5593                         sleep(1); // prevent flood (FIXME make this an option?)
5594                 }
5595
5596                 // Send feed digests by email if needed.
5597                 if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
5598
5599         } // function update_daemon_common
5600
5601         function sanitize_article_content($text) {
5602                 # we don't support CDATA sections in articles, they break our own escaping
5603                 $text = preg_replace("/\[\[CDATA/", "", $text);
5604                 $text = preg_replace("/\]\]\>/", "", $text);
5605                 return $text;
5606         }
5607
5608         function load_filters($link, $feed, $owner_uid, $action_id = false) {
5609                 $filters = array();
5610
5611                 global $memcache;
5612
5613                 $obj_id = md5("FILTER:$feed:$owner_uid:$action_id");
5614
5615                 if ($memcache && $obj = $memcache->get($obj_id)) {
5616
5617                         return $obj;
5618
5619                 } else {
5620
5621                         if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
5622
5623                         $result = db_query($link, "SELECT reg_exp,
5624                                 ttrss_filter_types.name AS name,
5625                                 ttrss_filter_actions.name AS action,
5626                                 inverse,
5627                                 action_param,
5628                                 filter_param
5629                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
5630                                         enabled = true AND
5631                                         $ftype_query_part
5632                                         owner_uid = $owner_uid AND
5633                                         ttrss_filter_types.id = filter_type AND
5634                                         ttrss_filter_actions.id = action_id AND
5635                                         (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
5636
5637                         while ($line = db_fetch_assoc($result)) {
5638                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
5639                                         $filter["reg_exp"] = $line["reg_exp"];
5640                                         $filter["action"] = $line["action"];
5641                                         $filter["action_param"] = $line["action_param"];
5642                                         $filter["filter_param"] = $line["filter_param"];
5643                                         $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
5644
5645                                         array_push($filters[$line["name"]], $filter);
5646                                 }
5647
5648                         if ($memcache) $memcache->add($obj_id, $filters, 0, 3600*8);
5649
5650                         return $filters;
5651                 }
5652         }
5653
5654         function get_score_pic($score) {
5655                 if ($score > 100) {
5656                         return "score_high.png";
5657                 } else if ($score > 0) {
5658                         return "score_half_high.png";
5659                 } else if ($score < -100) {
5660                         return "score_low.png";
5661                 } else if ($score < 0) {
5662                         return "score_half_low.png";
5663                 } else {
5664                         return "score_neutral.png";
5665                 }
5666         }
5667
5668         function rounded_table_start($classname, $header = "&nbsp;") {
5669                 print "<table width='100%' class='$classname' cellspacing='0' cellpadding='0'>";
5670                 print "<tr><td class='c1'>&nbsp;</td><td class='top'>$header</td><td class='c2'>&nbsp;</td></tr>";
5671                 print "<tr><td class='left'>&nbsp;</td><td class='content'>";
5672         }
5673
5674         function rounded_table_end($footer = "&nbsp;") {
5675                 print "</td><td class='right'>&nbsp;</td></tr>";
5676                 print "<tr><td class='c4'>&nbsp;</td><td class='bottom'>$footer</td><td class='c3'>&nbsp;</td></tr>";
5677                 print "</table>";
5678         }
5679
5680         function feed_has_icon($id) {
5681                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
5682         }
5683
5684         function init_connection($link) {
5685                 if (DB_TYPE == "pgsql") {
5686                         pg_query($link, "set client_encoding = 'UTF-8'");
5687                         pg_set_client_encoding("UNICODE");
5688                         pg_query($link, "set datestyle = 'ISO, european'");
5689                         pg_query($link, "set TIME ZONE 0");
5690                 } else {
5691                         db_query($link, "SET time_zone = '+0:0'");
5692
5693                         if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
5694                                 db_query($link, "SET NAMES " . MYSQL_CHARSET);
5695         //                      db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
5696                         }
5697                 }
5698         }
5699
5700         function update_feedbrowser_cache($link) {
5701
5702                 $result = db_query($link, "SELECT feed_url,title, COUNT(id) AS subscribers
5703                         FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5704                                 WHERE tf.feed_url = ttrss_feeds.feed_url
5705                                 AND (private IS true OR feed_url LIKE '%:%@%/%'))
5706                                 GROUP BY feed_url, title ORDER BY subscribers DESC LIMIT 1000");
5707
5708                 db_query($link, "BEGIN");
5709
5710                 db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
5711
5712                 $count = 0;
5713
5714                 while ($line = db_fetch_assoc($result)) {
5715                         $subscribers = db_escape_string($line["subscribers"]);
5716                         $feed_url = db_escape_string($line["feed_url"]);
5717                         $title = db_escape_string($line["title"]);
5718
5719                         $tmp_result = db_query($link, "SELECT subscribers FROM
5720                                 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
5721
5722                         if (db_num_rows($tmp_result) == 0) {
5723
5724                                 db_query($link, "INSERT INTO ttrss_feedbrowser_cache
5725                                         (feed_url, title, subscribers) VALUES ('$feed_url',
5726                                                 '$title', '$subscribers')");
5727
5728                                 ++$count;
5729
5730                         }
5731
5732                 }
5733
5734                 db_query($link, "COMMIT");
5735
5736                 return $count;
5737
5738         }
5739
5740         function ccache_zero($link, $feed_id, $owner_uid) {
5741                 db_query($link, "UPDATE ttrss_counters_cache SET
5742                         value = 0, updated = NOW() WHERE
5743                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5744         }
5745
5746         function ccache_zero_all($link, $owner_uid) {
5747                 db_query($link, "UPDATE ttrss_counters_cache SET
5748                         value = 0 WHERE owner_uid = '$owner_uid'");
5749
5750                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
5751                         value = 0 WHERE owner_uid = '$owner_uid'");
5752         }
5753
5754         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
5755
5756                 if (!$is_cat) {
5757                         $table = "ttrss_counters_cache";
5758                 } else {
5759                         $table = "ttrss_cat_counters_cache";
5760                 }
5761
5762                 db_query($link, "DELETE FROM $table WHERE
5763                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5764
5765         }
5766
5767         function ccache_update_all($link, $owner_uid) {
5768
5769                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
5770
5771                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
5772                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5773
5774                         while ($line = db_fetch_assoc($result)) {
5775                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
5776                         }
5777
5778                         /* We have to manually include category 0 */
5779
5780                         ccache_update($link, 0, $owner_uid, true);
5781
5782                 } else {
5783                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
5784                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5785
5786                         while ($line = db_fetch_assoc($result)) {
5787                                 print ccache_update($link, $line["feed_id"], $owner_uid);
5788
5789                         }
5790
5791                 }
5792         }
5793
5794         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
5795                 $no_update = false) {
5796
5797                 if (!is_numeric($feed_id)) return;
5798
5799                 if (!$is_cat) {
5800                         $table = "ttrss_counters_cache";
5801                         if ($feed_id > 0) {
5802                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
5803                                         WHERE id = '$feed_id'");
5804                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
5805                         }
5806                 } else {
5807                         $table = "ttrss_cat_counters_cache";
5808                 }
5809
5810                 if (DB_TYPE == "pgsql") {
5811                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
5812                 } else if (DB_TYPE == "mysql") {
5813                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
5814                 }
5815
5816                 $result = db_query($link, "SELECT value FROM $table
5817                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
5818                         LIMIT 1");
5819
5820                 if (db_num_rows($result) == 1) {
5821                         return db_fetch_result($result, 0, "value");
5822                 } else {
5823                         if ($no_update) {
5824                                 return -1;
5825                         } else {
5826                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
5827                         }
5828                 }
5829
5830         }
5831
5832         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
5833                 $update_pcat = true) {
5834
5835                 if (!is_numeric($feed_id)) return;
5836
5837                 if (!$is_cat && $feed_id > 0) {
5838                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
5839                                 WHERE id = '$feed_id'");
5840                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
5841                 }
5842
5843                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
5844
5845                 /* When updating a label, all we need to do is recalculate feed counters
5846                  * because labels are not cached */
5847
5848                 if ($feed_id < 0) {
5849                         ccache_update_all($link, $owner_uid);
5850                         return;
5851                 }
5852
5853                 if (!$is_cat) {
5854                         $table = "ttrss_counters_cache";
5855                 } else {
5856                         $table = "ttrss_cat_counters_cache";
5857                 }
5858
5859                 if ($is_cat && $feed_id >= 0) {
5860                         if ($feed_id != 0) {
5861                                 $cat_qpart = "cat_id = '$feed_id'";
5862                         } else {
5863                                 $cat_qpart = "cat_id IS NULL";
5864                         }
5865
5866                         /* Recalculate counters for child feeds */
5867
5868                         $result = db_query($link, "SELECT id FROM ttrss_feeds
5869                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
5870
5871                         while ($line = db_fetch_assoc($result)) {
5872                                 ccache_update($link, $line["id"], $owner_uid, false, false);
5873                         }
5874
5875                         $result = db_query($link, "SELECT SUM(value) AS sv
5876                                 FROM ttrss_counters_cache, ttrss_feeds
5877                                 WHERE id = feed_id AND $cat_qpart AND
5878                                 ttrss_feeds.owner_uid = '$owner_uid'");
5879
5880                         $unread = (int) db_fetch_result($result, 0, "sv");
5881
5882                 } else {
5883                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
5884                 }
5885
5886                 db_query($link, "BEGIN");
5887
5888                 $result = db_query($link, "SELECT feed_id FROM $table
5889                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
5890
5891                 if (db_num_rows($result) == 1) {
5892                         db_query($link, "UPDATE $table SET
5893                                 value = '$unread', updated = NOW() WHERE
5894                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5895
5896                 } else {
5897                         db_query($link, "INSERT INTO $table
5898                                 (feed_id, value, owner_uid, updated)
5899                                 VALUES
5900                                 ($feed_id, $unread, $owner_uid, NOW())");
5901                 }
5902
5903                 db_query($link, "COMMIT");
5904
5905                 if ($feed_id > 0 && $prev_unread != $unread) {
5906
5907                         if (!$is_cat) {
5908
5909                                 /* Update parent category */
5910
5911                                 if ($update_pcat) {
5912
5913                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
5914                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
5915
5916                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
5917
5918                                         ccache_update($link, $cat_id, $owner_uid, true);
5919
5920                                 }
5921                         }
5922                 } else if ($feed_id < 0) {
5923                         ccache_update_all($link, $owner_uid);
5924                 }
5925
5926                 return $unread;
5927         }
5928
5929         function label_find_id($link, $label, $owner_uid) {
5930                 $result = db_query($link,
5931                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
5932                                 AND owner_uid = '$owner_uid' LIMIT 1");
5933
5934                 if (db_num_rows($result) == 1) {
5935                         return db_fetch_result($result, 0, "id");
5936                 } else {
5937                         return 0;
5938                 }
5939         }
5940
5941         function get_article_labels($link, $id) {
5942                 global $memcache;
5943
5944                 $obj_id = md5("LABELS:$id:" . $_SESSION["uid"]);
5945
5946                 $rv = array();
5947
5948                 if ($memcache && $obj = $memcache->get($obj_id)) {
5949                         return $obj;
5950                 } else {
5951
5952                         $result = db_query($link, "SELECT label_cache FROM
5953                                 ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
5954                                 $_SESSION["uid"]);
5955
5956                         $label_cache = db_fetch_result($result, 0, "label_cache");
5957
5958                         if ($label_cache) {
5959
5960                                 $label_cache = json_decode($label_cache, true);
5961
5962                                 if ($label_cache["no-labels"] == 1)
5963                                         return $rv;
5964                                 else
5965                                         return $label_cache;
5966                         }
5967
5968                         $result = db_query($link,
5969                                 "SELECT DISTINCT label_id,caption,fg_color,bg_color
5970                                         FROM ttrss_labels2, ttrss_user_labels2
5971                                 WHERE id = label_id
5972                                         AND article_id = '$id'
5973                                         AND owner_uid = ".$_SESSION["uid"] . "
5974                                 ORDER BY caption");
5975
5976                         while ($line = db_fetch_assoc($result)) {
5977                                 $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
5978                                         $line["bg_color"]);
5979                                 array_push($rv, $rk);
5980                         }
5981                         if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
5982
5983                         if (count($rv) > 0)
5984                                 label_update_cache($link, $id, $rv);
5985                         else
5986                                 label_update_cache($link, $id, array("no-labels" => 1));
5987                 }
5988
5989                 return $rv;
5990         }
5991
5992
5993         function label_find_caption($link, $label, $owner_uid) {
5994                 $result = db_query($link,
5995                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
5996                                 AND owner_uid = '$owner_uid' LIMIT 1");
5997
5998                 if (db_num_rows($result) == 1) {
5999                         return db_fetch_result($result, 0, "caption");
6000                 } else {
6001                         return "";
6002                 }
6003         }
6004
6005         function label_update_cache($link, $id, $labels = false, $force = false) {
6006
6007                 if ($force)
6008                         label_clear_cache($link, $id);
6009
6010                 if (!$labels)
6011                         $labels = get_article_labels($link, $id);
6012
6013                 $labels = db_escape_string(json_encode($labels));
6014
6015                 db_query($link, "UPDATE ttrss_user_entries SET
6016                         label_cache = '$labels' WHERE ref_id = '$id'");
6017
6018         }
6019
6020         function label_clear_cache($link, $id) {
6021
6022                 db_query($link, "UPDATE ttrss_user_entries SET
6023                         label_cache = '' WHERE ref_id = '$id'");
6024
6025         }
6026
6027         function label_remove_article($link, $id, $label, $owner_uid) {
6028
6029                 $label_id = label_find_id($link, $label, $owner_uid);
6030
6031                 if (!$label_id) return;
6032
6033                 $result = db_query($link,
6034                         "DELETE FROM ttrss_user_labels2
6035                         WHERE
6036                                 label_id = '$label_id' AND
6037                                 article_id = '$id'");
6038
6039                 label_clear_cache($link, $id);
6040         }
6041
6042         function label_add_article($link, $id, $label, $owner_uid) {
6043
6044                 global $memcache;
6045
6046                 if ($memcache) {
6047                         $obj_id = md5("LABELS:$id:$owner_uid");
6048                         $memcache->delete($obj_id);
6049                 }
6050
6051                 $label_id = label_find_id($link, $label, $owner_uid);
6052
6053                 if (!$label_id) return;
6054
6055                 $result = db_query($link,
6056                         "SELECT
6057                                 article_id FROM ttrss_labels2, ttrss_user_labels2
6058                         WHERE
6059                                 label_id = id AND
6060                                 label_id = '$label_id' AND
6061                                 article_id = '$id' AND owner_uid = '$owner_uid'
6062                         LIMIT 1");
6063
6064                 if (db_num_rows($result) == 0) {
6065                         db_query($link, "INSERT INTO ttrss_user_labels2
6066                                 (label_id, article_id) VALUES ('$label_id', '$id')");
6067                 }
6068
6069                 label_clear_cache($link, $id);
6070
6071         }
6072
6073         function label_remove($link, $id, $owner_uid) {
6074                 global $memcache;
6075
6076                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6077
6078                 if ($memcache) {
6079                         $obj_id = md5("LABELS:$id:$owner_uid");
6080                         $memcache->delete($obj_id);
6081                 }
6082
6083                 db_query($link, "BEGIN");
6084
6085                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6086                         WHERE id = '$id'");
6087
6088                 $caption = db_fetch_result($result, 0, "caption");
6089
6090                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
6091                         AND owner_uid = " . $owner_uid);
6092
6093                 if (db_affected_rows($link, $result) != 0 && $caption) {
6094
6095                         /* Remove access key for the label */
6096
6097                         $ext_id = -11 - $id;
6098
6099                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6100                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
6101
6102                         /* Disable filters that reference label being removed */
6103
6104                         db_query($link, "UPDATE ttrss_filters SET
6105                                 enabled = false WHERE action_param = '$caption'
6106                                         AND action_id = 7
6107                                         AND owner_uid = " . $owner_uid);
6108
6109                         /* Remove cached data */
6110
6111                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
6112                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
6113
6114                 }
6115
6116                 db_query($link, "COMMIT");
6117         }
6118
6119         function label_create($link, $caption) {
6120
6121                 db_query($link, "BEGIN");
6122
6123                 $result = false;
6124
6125                 $result = db_query($link, "SELECT id FROM ttrss_labels2
6126                         WHERE caption = '$caption' AND owner_uid =  ". $_SESSION["uid"]);
6127
6128                 if (db_num_rows($result) == 0) {
6129                         $result = db_query($link,
6130                                 "INSERT INTO ttrss_labels2 (caption,owner_uid)
6131                                         VALUES ('$caption', '".$_SESSION["uid"]."')");
6132
6133                         $result = db_affected_rows($link, $result) != 0;
6134                 }
6135
6136                 db_query($link, "COMMIT");
6137
6138                 return $result;
6139         }
6140
6141         function print_labels_headlines_dropdown($link, $feed_id) {
6142                 print "<option value=\"addLabel()\">".__("Create label...")."</option>";
6143
6144                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2 WHERE
6145                         owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6146
6147                 while ($line = db_fetch_assoc($result)) {
6148
6149                         $label_id = $line["id"];
6150                         $label_caption = $line["caption"];
6151                         $id = $line["id"];
6152
6153                         if ($feed_id < -10 && $feed_id == -11-$label_id) {
6154                                 print "<option id=\"LHDL-$id\"
6155                                         value=\"selectionRemoveLabel($label_id)\">".
6156                                         __('Remove:') . " $label_caption</option>";
6157                         } else {
6158                                 print "<option id=\"LHDL-$id\"
6159                                         value=\"selectionAssignLabel($label_id)\">".
6160                                         __('Assign:') . " $label_caption</option>";
6161                         }
6162                 }
6163         }
6164
6165         function format_tags_string($tags, $id) {
6166
6167                 $tags_str = "";
6168                 $tags_nolinks_str = "";
6169
6170                 $num_tags = 0;
6171
6172 /*              if (get_user_theme($link) == "3pane") {
6173                         $tag_limit = 3;
6174                 } else {
6175                         $tag_limit = 6;
6176                 } */
6177
6178                 $tag_limit = 6;
6179
6180                 $formatted_tags = array();
6181
6182                 foreach ($tags as $tag) {
6183                         $num_tags++;
6184                         $tag_escaped = str_replace("'", "\\'", $tag);
6185
6186                         if (mb_strlen($tag) > 30) {
6187                                 $tag = truncate_string($tag, 30);
6188                         }
6189
6190                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
6191
6192                         array_push($formatted_tags, $tag_str);
6193
6194                         $tmp_tags_str = implode(", ", $formatted_tags);
6195
6196                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
6197                                 break;
6198                         }
6199                 }
6200
6201                 $tags_str = implode(", ", $formatted_tags);
6202
6203                 if ($num_tags < count($tags)) {
6204                         $tags_str .= ", &hellip;";
6205                 }
6206
6207                 if ($num_tags == 0) {
6208                         $tags_str = __("no tags");
6209                 }
6210
6211                 return $tags_str;
6212
6213         }
6214
6215         function format_article_labels($labels, $id) {
6216
6217                 $labels_str = "";
6218
6219                 foreach ($labels as $l) {
6220                         $labels_str .= sprintf("<span class='hlLabelRef'
6221                                 style='color : %s; background-color : %s'>%s</span>",
6222                                         $l[2], $l[3], $l[1]);
6223                         }
6224
6225                 return $labels_str;
6226
6227         }
6228
6229         function format_article_note($id, $note) {
6230
6231                 $str = "<div class='articleNote' title=\"".__('edit note')."\"
6232                         onclick=\"editArticleNote($id)\">$note</div>";
6233
6234                 return $str;
6235         }
6236
6237         function toggle_collapse_cat($link, $cat_id, $mode) {
6238                 if ($cat_id > 0) {
6239                         $mode = bool_to_sql_bool($mode);
6240
6241                         db_query($link, "UPDATE ttrss_feed_categories SET
6242                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
6243                                 $_SESSION["uid"]);
6244                 } else {
6245                         $pref_name = '';
6246
6247                         switch ($cat_id) {
6248                         case -1:
6249                                 $pref_name = '_COLLAPSED_SPECIAL';
6250                                 break;
6251                         case -2:
6252                                 $pref_name = '_COLLAPSED_LABELS';
6253                                 break;
6254                         case 0:
6255                                 $pref_name = '_COLLAPSED_UNCAT';
6256                                 break;
6257                         }
6258
6259                         if ($pref_name) {
6260                                 if ($mode) {
6261                                         set_pref($link, $pref_name, 'true');
6262                                 } else {
6263                                         set_pref($link, $pref_name, 'false');
6264                                 }
6265                         }
6266                 }
6267         }
6268
6269         function remove_feed($link, $id, $owner_uid) {
6270
6271                 if ($id > 0) {
6272
6273                         /* save starred articles in Archived feed */
6274
6275                         db_query($link, "BEGIN");
6276
6277                         /* prepare feed if necessary */
6278
6279                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6280                                 WHERE id = '$id'");
6281
6282                         if (db_num_rows($result) == 0) {
6283                                 db_query($link, "INSERT INTO ttrss_archived_feeds
6284                                         (id, owner_uid, title, feed_url, site_url)
6285                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6286                                 WHERE id = '$id'");
6287                         }
6288
6289                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
6290                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
6291                                         marked = true AND owner_uid = $owner_uid");
6292
6293                         /* Remove access key for the feed */
6294
6295                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6296                                 feed_id = '$id' AND owner_uid = $owner_uid");
6297
6298                         /* remove the feed */
6299
6300                         db_query($link, "DELETE FROM ttrss_feeds
6301                                         WHERE id = '$id' AND owner_uid = $owner_uid");
6302
6303                         db_query($link, "COMMIT");
6304
6305 /*                      if (file_exists(ICONS_DIR . "/$id.ico")) {
6306                                 unlink(ICONS_DIR . "/$id.ico");
6307                         } */
6308
6309                         ccache_remove($link, $id, $owner_uid);
6310
6311                 } else {
6312                         label_remove($link, -11-$id, $owner_uid);
6313                         ccache_remove($link, -11-$id, $owner_uid);
6314                 }
6315         }
6316
6317         function add_feed_category($link, $feed_cat) {
6318
6319                 if (!$feed_cat) return false;
6320
6321                 db_query($link, "BEGIN");
6322
6323                 $result = db_query($link,
6324                         "SELECT id FROM ttrss_feed_categories
6325                         WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
6326
6327                 if (db_num_rows($result) == 0) {
6328
6329                         $result = db_query($link,
6330                                 "INSERT INTO ttrss_feed_categories (owner_uid,title)
6331                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
6332
6333                         db_query($link, "COMMIT");
6334
6335                         return true;
6336                 }
6337
6338                 return false;
6339         }
6340
6341         function remove_feed_category($link, $id, $owner_uid) {
6342
6343                 db_query($link, "DELETE FROM ttrss_feed_categories
6344                         WHERE id = '$id' AND owner_uid = $owner_uid");
6345
6346                 ccache_remove($link, $id, $owner_uid, true);
6347         }
6348
6349         function archive_article($link, $id, $owner_uid) {
6350                 db_query($link, "BEGIN");
6351
6352                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6353                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
6354
6355                 if (db_num_rows($result) != 0) {
6356
6357                         /* prepare the archived table */
6358
6359                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
6360
6361                         if ($feed_id) {
6362                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6363                                         WHERE id = '$feed_id'");
6364
6365                                 if (db_num_rows($result) == 0) {
6366                                         db_query($link, "INSERT INTO ttrss_archived_feeds
6367                                                 (id, owner_uid, title, feed_url, site_url)
6368                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6369                                         WHERE id = '$feed_id'");
6370                                 }
6371
6372                                 db_query($link, "UPDATE ttrss_user_entries
6373                                         SET orig_feed_id = feed_id, feed_id = NULL
6374                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6375                         }
6376                 }
6377
6378                 db_query($link, "COMMIT");
6379         }
6380
6381         function getArticleFeed($link, $id) {
6382                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6383                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6384
6385                 if (db_num_rows($result) != 0) {
6386                         return db_fetch_result($result, 0, "feed_id");
6387                 } else {
6388                         return 0;
6389                 }
6390         }
6391
6392         function make_url_from_parts($parts) {
6393                 $url = $parts['scheme'] . '://' . $parts['host'];
6394
6395                 if ($parts['path']) $url .= $parts['path'];
6396                 if ($parts['query']) $url .= '?' . $parts['query'];
6397
6398                 return $url;
6399         }
6400
6401         /**
6402          * Fixes incomplete URLs by prepending "http://".
6403          * Also replaces feed:// with http://, and
6404          * prepends a trailing slash if the url is a domain name only.
6405          *
6406          * @param string $url Possibly incomplete URL
6407          *
6408          * @return string Fixed URL.
6409          */
6410         function fix_url($url) {
6411                 if (strpos($url, '://') === false) {
6412                         $url = 'http://' . $url;
6413                 } else if (substr($url, 0, 5) == 'feed:') {
6414                         $url = 'http:' . substr($url, 5);
6415                 }
6416
6417                 //prepend slash if the URL has no slash in it
6418                 // "http://www.example" -> "http://www.example/"
6419                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
6420                         $url .= '/';
6421                 }
6422
6423                 if ($url != "http:///")
6424                         return $url;
6425                 else
6426                         return '';
6427         }
6428
6429         function validate_feed_url($url) {
6430                 $parts = parse_url($url);
6431
6432                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
6433
6434         }
6435
6436         function get_article_enclosures($link, $id) {
6437
6438                 global $memcache;
6439
6440                 $query = "SELECT * FROM ttrss_enclosures
6441                         WHERE post_id = '$id' AND content_url != ''";
6442
6443                 $obj_id = md5("ENCLOSURES:$id");
6444
6445                 $rv = array();
6446
6447                 if ($memcache && $obj = $memcache->get($obj_id)) {
6448                         $rv = $obj;
6449                 } else {
6450                         $result = db_query($link, $query);
6451
6452                         if (db_num_rows($result) > 0) {
6453                                 while ($line = db_fetch_assoc($result)) {
6454                                         array_push($rv, $line);
6455                                 }
6456                                 if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6457                         }
6458                 }
6459
6460                 return $rv;
6461         }
6462
6463         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset) {
6464
6465                         $feeds = array();
6466
6467                         /* Labels */
6468
6469                         if ($cat_id == -4 || $cat_id == -2) {
6470                                 $counters = getLabelCounters($link, true);
6471
6472                                 foreach (array_values($counters) as $cv) {
6473
6474                                         $unread = $cv["counter"];
6475
6476                                         if ($unread || !$unread_only) {
6477
6478                                                 $row = array(
6479                                                                 "id" => $cv["id"],
6480                                                                 "title" => $cv["description"],
6481                                                                 "unread" => $cv["counter"],
6482                                                                 "cat_id" => -2,
6483                                                         );
6484
6485                                                 array_push($feeds, $row);
6486                                         }
6487                                 }
6488                         }
6489
6490                         /* Virtual feeds */
6491
6492                         if ($cat_id == -4 || $cat_id == -1) {
6493                                 foreach (array(-1, -2, -3, -4, 0) as $i) {
6494                                         $unread = getFeedUnread($link, $i);
6495
6496                                         if ($unread || !$unread_only) {
6497                                                 $title = getFeedTitle($link, $i);
6498
6499                                                 $row = array(
6500                                                                 "id" => $i,
6501                                                                 "title" => $title,
6502                                                                 "unread" => $unread,
6503                                                                 "cat_id" => -1,
6504                                                         );
6505                                                 array_push($feeds, $row);
6506                                         }
6507
6508                                 }
6509                         }
6510
6511                         /* Real feeds */
6512
6513                         if ($limit) {
6514                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
6515                         } else {
6516                                 $limit_qpart = "";
6517                         }
6518
6519                         if ($cat_id == -4 || $cat_id == -3) {
6520                                 $result = db_query($link, "SELECT
6521                                         id, feed_url, cat_id, title, ".
6522                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6523                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
6524                                                 " ORDER BY cat_id, title " . $limit_qpart);
6525                         } else {
6526
6527                                 if ($cat_id)
6528                                         $cat_qpart = "cat_id = '$cat_id'";
6529                                 else
6530                                         $cat_qpart = "cat_id IS NULL";
6531
6532                                 $result = db_query($link, "SELECT
6533                                         id, feed_url, cat_id, title, ".
6534                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6535                                                 FROM ttrss_feeds WHERE
6536                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
6537                                                 " ORDER BY cat_id, title " . $limit_qpart);
6538                         }
6539
6540                         while ($line = db_fetch_assoc($result)) {
6541
6542                                 $unread = getFeedUnread($link, $line["id"]);
6543
6544                                 $has_icon = feed_has_icon($line['id']);
6545
6546                                 if ($unread || !$unread_only) {
6547
6548                                         $row = array(
6549                                                         "feed_url" => $line["feed_url"],
6550                                                         "title" => $line["title"],
6551                                                         "id" => (int)$line["id"],
6552                                                         "unread" => (int)$unread,
6553                                                         "has_icon" => $has_icon,
6554                                                         "cat_id" => (int)$line["cat_id"],
6555                                                         "last_updated" => strtotime($line["last_updated"])
6556                                                 );
6557
6558                                         array_push($feeds, $row);
6559                                 }
6560                         }
6561
6562                 return $feeds;
6563         }
6564
6565         function api_get_headlines($link, $feed_id, $limit, $offset,
6566                                         $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order) {
6567
6568                         /* do not rely on params below */
6569
6570                         $search = db_escape_string($_REQUEST["search"]);
6571                         $search_mode = db_escape_string($_REQUEST["search_mode"]);
6572                         $match_on = db_escape_string($_REQUEST["match_on"]);
6573
6574                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
6575                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
6576                                 $order, $offset);
6577
6578                         $result = $qfh_ret[0];
6579                         $feed_title = $qfh_ret[1];
6580
6581                         $headlines = array();
6582
6583                         while ($line = db_fetch_assoc($result)) {
6584                                 $is_updated = ($line["last_read"] == "" &&
6585                                         ($line["unread"] != "t" && $line["unread"] != "1"));
6586
6587                                 $headline_row = array(
6588                                                 "id" => (int)$line["id"],
6589                                                 "unread" => sql_bool_to_bool($line["unread"]),
6590                                                 "marked" => sql_bool_to_bool($line["marked"]),
6591                                                 "published" => sql_bool_to_bool($line["published"]),
6592                                                 "updated" => strtotime($line["updated"]),
6593                                                 "is_updated" => $is_updated,
6594                                                 "title" => $line["title"],
6595                                                 "link" => $line["link"],
6596                                                 "feed_id" => $line["feed_id"],
6597                                                 "tags" => get_article_tags($link, $line["id"]),
6598                                         );
6599
6600                                 if ($show_excerpt) {
6601                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
6602                                         $headline_row["excerpt"] = $excerpt;
6603                                 }
6604
6605                                 if ($show_content) {
6606                                         $headline_row["content"] = $line["content_preview"];
6607                                 }
6608
6609                                 array_push($headlines, $headline_row);
6610                         }
6611
6612                         return $headlines;
6613         }
6614
6615         function generate_error_feed($link, $error) {
6616                 $reply = array();
6617
6618                 $reply['headlines']['id'] = -6;
6619                 $reply['headlines']['is_cat'] = false;
6620
6621                 $reply['headlines']['toolbar'] = '';
6622                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
6623
6624                 $reply['headlines-info'] = array("count" => 0,
6625                         "vgroup_last_feed" => '',
6626                         "unread" => 0,
6627                         "disable_cache" => true);
6628
6629                 return $reply;
6630         }
6631
6632
6633         function generate_dashboard_feed($link) {
6634                 $reply = array();
6635
6636                 $reply['headlines']['id'] = -5;
6637                 $reply['headlines']['is_cat'] = false;
6638
6639                 $reply['headlines']['toolbar'] = '';
6640                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
6641
6642                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
6643
6644                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
6645                         WHERE owner_uid = " . $_SESSION['uid']);
6646
6647                 $last_updated = db_fetch_result($result, 0, "last_updated");
6648                 $last_updated = make_local_datetime($link, $last_updated, false);
6649
6650                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
6651
6652                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
6653                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
6654
6655                 $num_errors = db_fetch_result($result, 0, "num_errors");
6656
6657                 if ($num_errors > 0) {
6658                         $reply['headlines']['content'] .= "<br/>";
6659                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
6660                                 __('Some feeds have update errors (click for details)')."</a>";
6661                 }
6662                 $reply['headlines']['content'] .= "</span></p>";
6663
6664                 $reply['headlines-info'] = array("count" => 0,
6665                         "vgroup_last_feed" => '',
6666                         "unread" => 0,
6667                         "disable_cache" => true);
6668
6669                 return $reply;
6670         }
6671
6672         function save_email_address($link, $email) {
6673                 // FIXME: implement persistent storage of emails
6674
6675                 if (!$_SESSION['stored_emails'])
6676                         $_SESSION['stored_emails'] = array();
6677
6678                 if (!in_array($email, $_SESSION['stored_emails']))
6679                         array_push($_SESSION['stored_emails'], $email);
6680         }
6681
6682         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6683                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6684
6685                 $sql_is_cat = bool_to_sql_bool($is_cat);
6686
6687                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6688                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6689                         AND owner_uid = " . $owner_uid);
6690
6691                 if (db_num_rows($result) == 1) {
6692                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6693
6694                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
6695                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
6696                                 AND owner_uid = " . $owner_uid);
6697
6698                         return $key;
6699
6700                 } else {
6701                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
6702                 }
6703         }
6704
6705         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6706
6707                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6708
6709                 $sql_is_cat = bool_to_sql_bool($is_cat);
6710
6711                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6712                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6713                         AND owner_uid = " . $owner_uid);
6714
6715                 if (db_num_rows($result) == 1) {
6716                         return db_fetch_result($result, 0, "access_key");
6717                 } else {
6718                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6719
6720                         $result = db_query($link, "INSERT INTO ttrss_access_keys
6721                                 (access_key, feed_id, is_cat, owner_uid)
6722                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
6723
6724                         return $key;
6725                 }
6726                 return false;
6727         }
6728
6729         /**
6730          * Extracts RSS/Atom feed URLs from the given HTML URL.
6731          *
6732          * @param string $url HTML page URL
6733          *
6734          * @return array Array of feeds. Key is the full URL, value the title
6735          */
6736         function get_feeds_from_html($url, $login = false, $pass = false)
6737         {
6738                 $url     = fix_url($url);
6739                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
6740
6741                 libxml_use_internal_errors(true);
6742
6743                 $content = @fetch_file_contents($url, false, $login, $pass);
6744
6745                 $doc = new DOMDocument();
6746                 $doc->loadHTML($content);
6747                 $xpath = new DOMXPath($doc);
6748                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
6749                 $feedUrls = array();
6750                 foreach ($entries as $entry) {
6751                         if ($entry->hasAttribute('href')) {
6752                                 $title = $entry->getAttribute('title');
6753                                 if ($title == '') {
6754                                         $title = $entry->getAttribute('type');
6755                                 }
6756                                 $feedUrl = rewrite_relative_url(
6757                                         $baseUrl, $entry->getAttribute('href')
6758                                 );
6759                                 $feedUrls[$feedUrl] = $title;
6760                         }
6761                 }
6762                 return $feedUrls;
6763         }
6764
6765         /**
6766          * Checks if the content behind the given URL is a HTML file
6767          *
6768          * @param string $url URL to check
6769          *
6770          * @return boolean True if the URL contains HTML content
6771          */
6772         function url_is_html($url, $login = false, $pass = false) {
6773                 $content = substr(fetch_file_contents($url, false, $login, $pass), 0, 1000);
6774
6775                 if (stripos($content, '<html>') === false
6776                         && stripos($content, '<html ') === false
6777                 ) {
6778                         return false;
6779                 }
6780
6781                 return true;
6782         }
6783
6784         function print_label_select($link, $name, $value, $attributes = "") {
6785
6786                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6787                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6788
6789                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
6790                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
6791
6792                 while ($line = db_fetch_assoc($result)) {
6793
6794                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
6795
6796                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
6797                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
6798
6799                 }
6800
6801 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
6802
6803                 print "</select>";
6804
6805
6806         }
6807
6808         function format_article_enclosures($link, $id, $always_display_enclosures,
6809                                         $article_content) {
6810
6811                 $result = get_article_enclosures($link, $id);
6812                 $rv = '';
6813
6814                 if (count($result) > 0) {
6815
6816                         $entries_html = array();
6817                         $entries = array();
6818
6819                         foreach ($result as $line) {
6820
6821                                 $url = $line["content_url"];
6822                                 $ctype = $line["content_type"];
6823
6824                                 if (!$ctype) $ctype = __("unknown type");
6825
6826 #                               $filename = substr($url, strrpos($url, "/")+1);
6827
6828                                 $entry = format_inline_player($link, $url, $ctype);
6829
6830 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
6831 #                                       $filename . " (" . $ctype . ")" . "</a>";
6832
6833                                 array_push($entries_html, $entry);
6834
6835                                 $entry = array();
6836
6837                                 $entry["type"] = $ctype;
6838                                 $entry["filename"] = $filename;
6839                                 $entry["url"] = $url;
6840
6841                                 array_push($entries, $entry);
6842                         }
6843
6844                         $rv .= "<div class=\"postEnclosures\">";
6845
6846                         if (!get_pref($link, "STRIP_IMAGES")) {
6847                                 if ($always_display_enclosures ||
6848                                                         !preg_match("/<img/i", $article_content)) {
6849
6850                                         foreach ($entries as $entry) {
6851
6852                                                 if (preg_match("/image/", $entry["type"]) ||
6853                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
6854
6855                                                                 $rv .= "<p><img
6856                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
6857                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
6858                                                 }
6859                                         }
6860                                 }
6861                         }
6862
6863                         if (count($entries) == 1) {
6864                                 $rv .= __("Attachment:") . " ";
6865                         } else {
6866                                 $rv .= __("Attachments:") . " ";
6867                         }
6868
6869                         $rv .= join(", ", $entries_html);
6870
6871                         $rv .= "</div>";
6872                 }
6873
6874                 return $rv;
6875         }
6876
6877         function getLastArticleId($link) {
6878                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
6879                         WHERE owner_uid = " . $_SESSION["uid"]);
6880
6881                 if (db_num_rows($result) == 1) {
6882                         return db_fetch_result($result, 0, "id");
6883                 } else {
6884                         return -1;
6885                 }
6886         }
6887
6888         function build_url($parts) {
6889                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
6890         }
6891
6892         /**
6893          * Converts a (possibly) relative URL to a absolute one.
6894          *
6895          * @param string $url     Base URL (i.e. from where the document is)
6896          * @param string $rel_url Possibly relative URL in the document
6897          *
6898          * @return string Absolute URL
6899          */
6900         function rewrite_relative_url($url, $rel_url) {
6901                 if (strpos($rel_url, "://") !== false) {
6902                         return $rel_url;
6903                 } else if (strpos($rel_url, "/") === 0)
6904                 {
6905                         $parts = parse_url($url);
6906                         $parts['path'] = $rel_url;
6907
6908                         return build_url($parts);
6909
6910                 } else {
6911                         $parts = parse_url($url);
6912                         if (!isset($parts['path'])) {
6913                                 $parts['path'] = '/';
6914                         }
6915                         $dir = $parts['path'];
6916                         if (substr($dir, -1) !== '/') {
6917                                 $dir = dirname($parts['path']);
6918                                 $dir !== '/' && $dir .= '/';
6919                         }
6920                         $parts['path'] = $dir . $rel_url;
6921
6922                         return build_url($parts);
6923                 }
6924         }
6925
6926         function sphinx_search($query, $offset = 0, $limit = 30) {
6927                 $sphinxClient = new SphinxClient();
6928
6929                 $sphinxClient->SetServer('localhost', 9312);
6930                 $sphinxClient->SetConnectTimeout(1);
6931
6932                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
6933                         'feed_title' => 20));
6934
6935                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
6936                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
6937                 $sphinxClient->SetLimits($offset, $limit, 1000);
6938                 $sphinxClient->SetArrayResult(false);
6939                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
6940
6941                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
6942
6943                 $ids = array();
6944
6945                 if (is_array($result['matches'])) {
6946                         foreach (array_keys($result['matches']) as $int_id) {
6947                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
6948                                 array_push($ids, $ref_id);
6949                         }
6950                 }
6951
6952                 return $ids;
6953         }
6954
6955         function cleanup_tags($link, $days = 14, $limit = 1000) {
6956
6957                 if (DB_TYPE == "pgsql") {
6958                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
6959                 } else if (DB_TYPE == "mysql") {
6960                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
6961                 }
6962
6963                 $tags_deleted = 0;
6964
6965                 while ($limit > 0) {
6966                         $limit_part = 500;
6967
6968                         $query = "SELECT ttrss_tags.id AS id
6969                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
6970                                 WHERE post_int_id = int_id AND $interval_query AND
6971                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
6972
6973                         $result = db_query($link, $query);
6974
6975                         $ids = array();
6976
6977                         while ($line = db_fetch_assoc($result)) {
6978                                 array_push($ids, $line['id']);
6979                         }
6980
6981                         if (count($ids) > 0) {
6982                                 $ids = join(",", $ids);
6983                                 print ".";
6984
6985                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
6986                                 $tags_deleted += db_affected_rows($link, $tmp_result);
6987                         } else {
6988                                 break;
6989                         }
6990
6991                         $limit -= $limit_part;
6992                 }
6993
6994                 print "\n";
6995
6996                 return $tags_deleted;
6997         }
6998
6999         function feedlist_init_cat($link, $cat_id, $hidden = false) {
7000                 $obj = array();
7001                 $cat_id = (int) $cat_id;
7002
7003                 if ($cat_id > 0) {
7004                         $cat_unread = ccache_find($link, $cat_id, $_SESSION["uid"], true);
7005                 } else if ($cat_id == 0 || $cat_id == -2) {
7006                         $cat_unread = getCategoryUnread($link, $cat_id);
7007                 }
7008
7009                 $obj['id'] = 'CAT:' . $cat_id;
7010                 $obj['items'] = array();
7011                 $obj['name'] = getCategoryTitle($link, $cat_id);
7012                 $obj['type'] = 'feed';
7013                 $obj['unread'] = (int) $cat_unread;
7014                 $obj['hidden'] = $hidden;
7015                 $obj['bare_id'] = $cat_id;
7016
7017                 return $obj;
7018         }
7019
7020         function feedlist_init_feed($link, $feed_id, $title = false, $unread = false, $error = '', $updated = '') {
7021                 $obj = array();
7022                 $feed_id = (int) $feed_id;
7023
7024                 if (!$title)
7025                         $title = getFeedTitle($link, $feed_id, false);
7026
7027                 if ($unread === false)
7028                         $unread = getFeedUnread($link, $feed_id, false);
7029
7030                 $obj['id'] = 'FEED:' . $feed_id;
7031                 $obj['name'] = $title;
7032                 $obj['unread'] = (int) $unread;
7033                 $obj['type'] = 'feed';
7034                 $obj['error'] = $error;
7035                 $obj['updated'] = $updated;
7036                 $obj['icon'] = getFeedIcon($feed_id);
7037                 $obj['bare_id'] = $feed_id;
7038
7039                 return $obj;
7040         }
7041
7042
7043         function fetch_twitter_rss($link, $url, $owner_uid) {
7044                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
7045                         WHERE id = $owner_uid");
7046
7047                 $access_token = json_decode(db_fetch_result($result, 0, 'twitter_oauth'), true);
7048                 $url_escaped = db_escape_string($url);
7049
7050                 if ($access_token) {
7051
7052                         $tmhOAuth = new tmhOAuth(array(
7053                                 'consumer_key'    => CONSUMER_KEY,
7054                                 'consumer_secret' => CONSUMER_SECRET,
7055                                 'user_token' => $access_token['oauth_token'],
7056                                 'user_secret' => $access_token['oauth_token_secret'],
7057                         ));
7058
7059                         $code = $tmhOAuth->request('GET', $url);
7060
7061                         if ($code == 200) {
7062
7063                                 $content = $tmhOAuth->response['response'];
7064
7065                                 $rss = new MagpieRSS($content, MAGPIE_OUTPUT_ENCODING,
7066                                         MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING );
7067
7068                                 return $rss;
7069
7070                         } else {
7071
7072                                 db_query($link, "UPDATE ttrss_feeds
7073                                         SET last_error = 'OAuth authorization failed ($code).'
7074                                         WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7075                         }
7076
7077                 } else {
7078
7079                         db_query($link, "UPDATE ttrss_feeds
7080                                 SET last_error = 'OAuth information not found.'
7081                                 WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7082
7083                         return false;
7084                 }
7085         }
7086
7087         function print_user_stylesheet($link) {
7088                 $value = get_pref($link, 'USER_STYLESHEET');
7089
7090                 if ($value) {
7091                         print "<style type=\"text/css\">";
7092                         print str_replace("<br/>", "\n", $value);
7093                         print "</style>";
7094                 }
7095
7096         }
7097
7098         function rewrite_urls($line) {
7099                 global $url_regex;
7100
7101                 $urls = null;
7102
7103                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
7104                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
7105
7106                 return $result;
7107         }
7108
7109 ?>