functions.php

   1 <?php
   2
   3         date_default_timezone_set('UTC');
   4         if (defined('E_DEPRECATED')) {
   5                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
   6         } else {
   7                 error_reporting(E_ALL & ~E_NOTICE);
   8         }
   9
  10         require_once 'config.php';
  11
  12         if (DB_TYPE == "pgsql") {
  13                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  14         } else {
  15                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  16         }
  17
  18         define('THEME_VERSION_REQUIRED', 1.1);
  19
  20         /**
  21          * Return available translations names.
  22          *
  23          * @access public
  24          * @return array A array of available translations.
  25          */
  26         function get_translations() {
  27                 $tr = array(
  28                                         "auto"  => "Detect automatically",
  29                                         "ca_CA" => "Català",
  30                                         "en_US" => "English",
  31                                         "es_ES" => "Español",
  32                                         "de_DE" => "Deutsch",
  33                                         "fr_FR" => "Français",
  34                                         "hu_HU" => "Magyar (Hungarian)",
  35                                         "it_IT" => "Italiano",
  36                                         "ja_JP" => "日本語 (Japanese)",
  37                                         "nb_NO" => "Norwegian bokmål",
  38                                         "ru_RU" => "Русский",
  39                                         "pt_BR" => "Portuguese/Brazil",
  40                                         "zh_CN" => "Simplified Chinese");
  41
  42                 return $tr;
  43         }
  44
  45         require_once "lib/accept-to-gettext.php";
  46         require_once "lib/gettext/gettext.inc";
  47
  48         function startup_gettext() {
  49
  50                 # Get locale from Accept-Language header
  51                 $lang = al2gt(array_keys(get_translations()), "text/html");
  52
  53                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
  54                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
  55                 }
  56
  57                 if ($_COOKIE["ttrss_lang"] && $_COOKIE["ttrss_lang"] != "auto") {
  58                         $lang = $_COOKIE["ttrss_lang"];
  59                 }
  60
  61                 /* In login action of mobile version */
  62                 if ($_POST["language"] && defined('MOBILE_VERSION')) {
  63                         $lang = $_POST["language"];
  64                         $_COOKIE["ttrss_lang"] = $lang;
  65                 }
  66
  67                 if ($lang) {
  68                         if (defined('LC_MESSAGES')) {
  69                                 _setlocale(LC_MESSAGES, $lang);
  70                         } else if (defined('LC_ALL')) {
  71                                 _setlocale(LC_ALL, $lang);
  72                         }
  73
  74                         if (defined('MOBILE_VERSION')) {
  75                                 _bindtextdomain("messages", "../locale");
  76                         } else {
  77                                 _bindtextdomain("messages", "locale");
  78                         }
  79
  80                         _textdomain("messages");
  81                         _bind_textdomain_codeset("messages", "UTF-8");
  82                 }
  83         }
  84
  85         startup_gettext();
  86
  87         if (defined('MEMCACHE_SERVER')) {
  88                 $memcache = new Memcache;
  89                 $memcache->connect(MEMCACHE_SERVER, 11211);
  90         }
  91
  92         require_once 'db-prefs.php';
  93         require_once 'errors.php';
  94         require_once 'version.php';
  95
  96         require_once 'lib/phpmailer/class.phpmailer.php';
  97         require_once 'lib/sphinxapi.php';
  98         require_once 'lib/tmhoauth/tmhOAuth.php';
  99
 100         //define('MAGPIE_USER_AGENT_EXT', ' (Tiny Tiny RSS/' . VERSION . ')');
 101         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
 102
 103         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 104         define('MAGPIE_USER_AGENT', SELF_USER_AGENT);
 105
 106         ini_set('user_agent', SELF_USER_AGENT);
 107
 108         require_once "lib/simplepie/simplepie.inc";
 109         require_once "lib/magpierss/rss_fetch.inc";
 110         require_once 'lib/magpierss/rss_utils.inc';
 111         require_once 'lib/htmlpurifier/library/HTMLPurifier.auto.php';
 112         require_once 'lib/pubsubhubbub/publisher.php';
 113         require_once 'lib/pubsubhubbub/subscriber.php';
 114
 115         $config = HTMLPurifier_Config::createDefault();
 116
 117         $allowed = "p,a[href],i,em,b,strong,code,pre,blockquote,br,img[src|alt|title],ul,ol,li,h1,h2,h3,h4,s,object[classid|type|id|name|width|height|codebase],param[name|value],table,tr,td";
 118
 119         $config->set('HTML.SafeObject', true);
 120         @$config->set('HTML', 'Allowed', $allowed);
 121         $config->set('Output.FlashCompat', true);
 122         $config->set('Attr.EnableID', true);
 123         if (!defined('MOBILE_VERSION')) {
 124                 @$config->set('Cache', 'SerializerPath', CACHE_DIR . "/htmlpurifier");
 125         } else {
 126                 @$config->set('Cache', 'SerializerPath', "../" . CACHE_DIR . "/htmlpurifier");
 127         }
 128
 129         $purifier = new HTMLPurifier($config);
 130
 131         $tz_offset = -1;
 132         $utc_tz = new DateTimeZone('UTC');
 133         $schema_version = false;
 134
 135         /**
 136          * Print a timestamped debug message.
 137          *
 138          * @param string $msg The debug message.
 139          * @return void
 140          */
 141         function _debug($msg) {
 142                 $ts = strftime("%H:%M:%S", time());
 143                 if (function_exists('posix_getpid')) {
 144                         $ts = "$ts/" . posix_getpid();
 145                 }
 146                 print "[$ts] $msg\n";
 147         } // function _debug
 148
 149         /**
 150          * Purge a feed old posts.
 151          *
 152          * @param mixed $link A database connection.
 153          * @param mixed $feed_id The id of the purged feed.
 154          * @param mixed $purge_interval Olderness of purged posts.
 155          * @param boolean $debug Set to True to enable the debug. False by default.
 156          * @access public
 157          * @return void
 158          */
 159         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 160
 161                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
 162
 163                 $rows = -1;
 164
 165                 $result = db_query($link,
 166                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 167
 168                 $owner_uid = false;
 169
 170                 if (db_num_rows($result) == 1) {
 171                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 172                 }
 173
 174                 if ($purge_interval == -1 || !$purge_interval) {
 175                         if ($owner_uid) {
 176                                 ccache_update($link, $feed_id, $owner_uid);
 177                         }
 178                         return;
 179                 }
 180
 181                 if (!$owner_uid) return;
 182
 183                 if (FORCE_ARTICLE_PURGE == 0) {
 184                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
 185                                 $owner_uid, false);
 186                 } else {
 187                         $purge_unread = true;
 188                         $purge_interval = FORCE_ARTICLE_PURGE;
 189                 }
 190
 191                 if (!$purge_unread) $query_limit = " unread = false AND ";
 192
 193                 if (DB_TYPE == "pgsql") {
 194                         $pg_version = get_pgsql_version($link);
 195
 196                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 197
 198                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 199                                         ttrss_entries.id = ref_id AND
 200                                         marked = false AND
 201                                         feed_id = '$feed_id' AND
 202                                         $query_limit
 203                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 204
 205                         } else {
 206
 207                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
 208                                         USING ttrss_entries
 209                                         WHERE ttrss_entries.id = ref_id AND
 210                                         marked = false AND
 211                                         feed_id = '$feed_id' AND
 212                                         $query_limit
 213                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 214                         }
 215
 216                         $rows = pg_affected_rows($result);
 217
 218                 } else {
 219
 220 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 221                                 marked = false AND feed_id = '$feed_id' AND
 222                                 (SELECT date_updated FROM ttrss_entries WHERE
 223                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 224
 225                         $result = db_query($link, "DELETE FROM ttrss_user_entries
 226                                 USING ttrss_user_entries, ttrss_entries
 227                                 WHERE ttrss_entries.id = ref_id AND
 228                                 marked = false AND
 229                                 feed_id = '$feed_id' AND
 230                                 $query_limit
 231                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 232
 233                         $rows = mysql_affected_rows($link);
 234
 235                 }
 236
 237                 ccache_update($link, $feed_id, $owner_uid);
 238
 239                 if ($debug) {
 240                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 241                 }
 242         } // function purge_feed
 243
 244         /**
 245          * Purge old posts from old feeds. Not used anymore, purging is done after feed update.
 246          *
 247          * @param mixed $link A database connection
 248          * @param boolean $do_output Set to true to enable printed output, false by default.
 249          * @param integer $limit The maximal number of removed posts.
 250          * @access public
 251          * @return void
 252          */
 253         /* function global_purge_old_posts($link, $do_output = false, $limit = false) {
 254
 255                 $random_qpart = sql_random_function();
 256
 257                 if ($limit) {
 258                         $limit_qpart = "LIMIT $limit";
 259                 } else {
 260                         $limit_qpart = "";
 261                 }
 262
 263                 $result = db_query($link,
 264                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds
 265                                 ORDER BY $random_qpart $limit_qpart");
 266
 267                 while ($line = db_fetch_assoc($result)) {
 268
 269                         $feed_id = $line["id"];
 270                         $purge_interval = $line["purge_interval"];
 271                         $owner_uid = $line["owner_uid"];
 272
 273                         if ($purge_interval == 0) {
 274
 275                                 $tmp_result = db_query($link,
 276                                         "SELECT value FROM ttrss_user_prefs WHERE
 277                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
 278
 279                                 if (db_num_rows($tmp_result) != 0) {
 280                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
 281                                 }
 282                         }
 283
 284                         if ($do_output) {
 285 //                              print "Feed $feed_id: purge interval = $purge_interval\n";
 286                         }
 287
 288                         if ($purge_interval > 0 || FORCE_ARTICLE_PURGE) {
 289                                 purge_feed($link, $feed_id, $purge_interval, $do_output);
 290                         }
 291                 }
 292
 293                 purge_orphans($link, $do_output);
 294
 295         } // function global_purge_old_posts */
 296
 297         function feed_purge_interval($link, $feed_id) {
 298
 299                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
 300                         WHERE id = '$feed_id'");
 301
 302                 if (db_num_rows($result) == 1) {
 303                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 304                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 305
 306                         if ($purge_interval == 0) $purge_interval = get_pref($link,
 307                                 'PURGE_OLD_DAYS', $owner_uid);
 308
 309                         return $purge_interval;
 310
 311                 } else {
 312                         return -1;
 313                 }
 314         }
 315
 316         function purge_old_posts($link) {
 317
 318                 $user_id = $_SESSION["uid"];
 319
 320                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
 321                         WHERE owner_uid = '$user_id'");
 322
 323                 while ($line = db_fetch_assoc($result)) {
 324
 325                         $feed_id = $line["id"];
 326                         $purge_interval = $line["purge_interval"];
 327
 328                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
 329
 330                         if ($purge_interval > 0) {
 331                                 purge_feed($link, $feed_id, $purge_interval);
 332                         }
 333                 }
 334
 335                 purge_orphans($link);
 336         }
 337
 338         function purge_orphans($link, $do_output = false) {
 339
 340                 // purge orphaned posts in main content table
 341                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
 342                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 343
 344                 if ($do_output) {
 345                         $rows = db_affected_rows($link, $result);
 346                         _debug("Purged $rows orphaned posts.");
 347                 }
 348         }
 349
 350         function get_feed_update_interval($link, $feed_id) {
 351                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
 352                         ttrss_feeds WHERE id = '$feed_id'");
 353
 354                 if (db_num_rows($result) == 1) {
 355                         $update_interval = db_fetch_result($result, 0, "update_interval");
 356                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 357
 358                         if ($update_interval != 0) {
 359                                 return $update_interval;
 360                         } else {
 361                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 362                         }
 363
 364                 } else {
 365                         return -1;
 366                 }
 367         }
 368
 369         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false) {
 370                 $login = urlencode($login);
 371                 $pass = urlencode($pass);
 372
 373                 if (function_exists('curl_init') && !ini_get("open_basedir")) {
 374                         $ch = curl_init($url);
 375
 376                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
 377                         curl_setopt($ch, CURLOPT_TIMEOUT, 45);
 378                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 379                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 380                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 381                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 382                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 383                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 384                         curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
 385                         curl_setopt($ch, CURLOPT_ENCODING , "gzip");
 386
 387                         if ($post_query) {
 388                                 curl_setopt($ch, CURLOPT_POST, true);
 389                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 390                         }
 391
 392                         if ($login && $pass)
 393                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 394
 395                         $contents = @curl_exec($ch);
 396
 397                         if ($contents === false) {
 398                                 curl_close($ch);
 399                                 return false;
 400                         }
 401
 402                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 403                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 404                         curl_close($ch);
 405
 406                         if ($http_code != 200 || $type && strpos($content_type, "$type") === false) {
 407                                 return false;
 408                         }
 409
 410                         return $contents;
 411                 } else {
 412                         if ($login && $pass ){
 413                                 $url_parts = array();
 414
 415                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 416
 417                                 if ($url_parts[1] && $url_parts[2]) {
 418                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 419                                 }
 420                         }
 421
 422                         return @file_get_contents($url);
 423                 }
 424
 425         }
 426
 427         /**
 428          * Try to determine the favicon URL for a feed.
 429          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 430          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 431          *
 432          * @param string $url A feed or page URL
 433          * @access public
 434          * @return mixed The favicon URL, or false if none was found.
 435          */
 436         function get_favicon_url($url) {
 437
 438                 $favicon_url = false;
 439
 440                 if ($html = @fetch_file_contents($url)) {
 441
 442                         libxml_use_internal_errors(true);
 443
 444                         $doc = new DOMDocument();
 445                         $doc->loadHTML($html);
 446                         $xpath = new DOMXPath($doc);
 447
 448                         $base = $xpath->query('/html/head/base');
 449                         foreach ($base as $b) {
 450                                 $url = $b->getAttribute("href");
 451                                 break;
 452                         }
 453
 454                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 455                         if (count($entries) > 0) {
 456                                 foreach ($entries as $entry) {
 457                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 458                                         break;
 459                                 }
 460                         }
 461                 }
 462
 463                 if (!$favicon_url)
 464                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 465
 466                 return $favicon_url;
 467         } // function get_favicon_url
 468
 469         function check_feed_favicon($site_url, $feed, $link) {
 470 #               print "FAVICON [$site_url]: $favicon_url\n";
 471
 472                 $icon_file = ICONS_DIR . "/$feed.ico";
 473
 474                 if (!file_exists($icon_file)) {
 475                         $favicon_url = get_favicon_url($site_url);
 476
 477                         if ($favicon_url) {
 478                                 $contents = fetch_file_contents($favicon_url, "image");
 479
 480                                 if ($contents) {
 481                                         $fp = @fopen($icon_file, "w");
 482
 483                                         if ($fp) {
 484                                                 fwrite($fp, $contents);
 485                                                 fclose($fp);
 486                                                 chmod($icon_file, 0644);
 487                                         }
 488                                 }
 489                         }
 490                 }
 491         }
 492
 493         function update_rss_feed($link, $feed, $ignore_daemon = false, $no_cache = false) {
 494
 495                 global $memcache;
 496
 497                 /* Update all feeds with the same URL to utilize memcache */
 498
 499                 if ($memcache) {
 500                         $result = db_query($link, "SELECT f1.id
 501                                 FROM ttrss_feeds AS f1, ttrss_feeds AS f2
 502                                 WHERE   f2.feed_url = f1.feed_url AND f2.id = '$feed'");
 503
 504                         while ($line = db_fetch_assoc($result)) {
 505                                 update_rss_feed_real($link, $line["id"], $ignore_daemon, $no_cache);
 506                         }
 507                 } else {
 508                         update_rss_feed_real($link, $feed, $ignore_daemon, $no_cache);
 509                 }
 510         }
 511
 512         function update_rss_feed_real($link, $feed, $ignore_daemon = false, $no_cache = false,
 513                 $override_url = false) {
 514
 515                 global $memcache;
 516
 517                 $debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
 518
 519                 if (!$_REQUEST["daemon"] && !$ignore_daemon) {
 520                         return false;
 521                 }
 522
 523                 if ($debug_enabled) {
 524                         _debug("update_rss_feed: start");
 525                 }
 526
 527                 if (!$ignore_daemon) {
 528
 529                         if (DB_TYPE == "pgsql") {
 530                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
 531                                 } else {
 532                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
 533                                 }
 534
 535                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 536                                 auth_pass,cache_images,update_method
 537                                 FROM ttrss_feeds WHERE id = '$feed' AND $updstart_thresh_qpart");
 538
 539                 } else {
 540
 541                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 542                                 feed_url,auth_pass,cache_images,update_method,last_updated,
 543                                 mark_unread_on_update, owner_uid, update_on_checksum_change,
 544                                 pubsub_state
 545                                 FROM ttrss_feeds WHERE id = '$feed'");
 546
 547                 }
 548
 549                 if (db_num_rows($result) == 0) {
 550                         if ($debug_enabled) {
 551                                 _debug("update_rss_feed: feed $feed NOT FOUND/SKIPPED");
 552                         }
 553                         return false;
 554                 }
 555
 556                 $update_method = db_fetch_result($result, 0, "update_method");
 557                 $last_updated = db_fetch_result($result, 0, "last_updated");
 558                 $owner_uid = db_fetch_result($result, 0, "owner_uid");
 559                 $mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
 560                         0, "mark_unread_on_update"));
 561                 $update_on_checksum_change = sql_bool_to_bool(db_fetch_result($result,
 562                         0, "update_on_checksum_change"));
 563                 $pubsub_state = db_fetch_result($result, 0, "pubsub_state");
 564
 565                 db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
 566                         WHERE id = '$feed'");
 567
 568                 $auth_login = db_fetch_result($result, 0, "auth_login");
 569                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
 570
 571                 if ($update_method == 0)
 572                         $update_method = DEFAULT_UPDATE_METHOD + 1;
 573
 574                 // 1 - Magpie
 575                 // 2 - SimplePie
 576                 // 3 - Twitter OAuth
 577
 578                 if ($update_method == 2)
 579                         $use_simplepie = true;
 580                 else
 581                         $use_simplepie = false;
 582
 583                 if ($debug_enabled) {
 584                         _debug("update method: $update_method (feed setting: $update_method) (use simplepie: $use_simplepie)\n");
 585                 }
 586
 587                 if ($update_method == 1) {
 588                         $auth_login = urlencode($auth_login);
 589                         $auth_pass = urlencode($auth_pass);
 590                 }
 591
 592                 $update_interval = db_fetch_result($result, 0, "update_interval");
 593                 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
 594                 $fetch_url = db_fetch_result($result, 0, "feed_url");
 595
 596                 if ($update_interval < 0) { return false; }
 597
 598                 $feed = db_escape_string($feed);
 599
 600                 if ($auth_login && $auth_pass ){
 601                         $url_parts = array();
 602                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 603
 604                         if ($url_parts[1] && $url_parts[2]) {
 605                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 606                         }
 607
 608                 }
 609
 610                 if ($override_url)
 611                         $fetch_url = $override_url;
 612
 613                 if ($debug_enabled) {
 614                         _debug("update_rss_feed: fetching [$fetch_url]...");
 615                 }
 616
 617                 $obj_id = md5("FDATA:$use_simplepie:$fetch_url");
 618
 619                 if ($memcache && $obj = $memcache->get($obj_id)) {
 620
 621                         if ($debug_enabled) {
 622                                 _debug("update_rss_feed: data found in memcache.");
 623                         }
 624
 625                         $rss = $obj;
 626
 627                 } else {
 628
 629                         if ($update_method == 3) {
 630                                 $rss = fetch_twitter_rss($link, $fetch_url, $owner_uid);
 631                         } else if ($update_method == 1) {
 632
 633                                 define('MAGPIE_CACHE_AGE', get_feed_update_interval($link, $feed) * 60);
 634                                 define('MAGPIE_CACHE_ON', !$no_cache);
 635                                 define('MAGPIE_FETCH_TIME_OUT', 60);
 636                                 define('MAGPIE_CACHE_DIR', CACHE_DIR . "/magpie");
 637
 638                                 $rss = @fetch_rss($fetch_url);
 639                         } else {
 640                                 $simplepie_cache_dir = CACHE_DIR . "/simplepie";
 641
 642                                 if (!is_dir($simplepie_cache_dir)) {
 643                                         mkdir($simplepie_cache_dir);
 644                                 }
 645
 646                                 $rss = new SimplePie();
 647                                 $rss->set_useragent(SELF_USER_AGENT);
 648         #                       $rss->set_timeout(10);
 649                                 $rss->set_feed_url($fetch_url);
 650                                 $rss->set_output_encoding('UTF-8');
 651                                 $rss->force_feed(true);
 652
 653                                 if (SIMPLEPIE_CACHE_IMAGES && $cache_images) {
 654
 655                                         if ($debug_enabled) {
 656                                                 _debug("enabling image cache");
 657                                         }
 658
 659                                         $rss->set_image_handler("image.php", 'i');
 660                                 }
 661
 662                                 if ($debug_enabled) {
 663                                         _debug("feed update interval (sec): " .
 664                                                 get_feed_update_interval($link, $feed)*60);
 665                                 }
 666
 667                                 $rss->enable_cache(!$no_cache);
 668
 669                                 if (!$no_cache) {
 670                                         $rss->set_cache_location($simplepie_cache_dir);
 671                                         $rss->set_cache_duration(get_feed_update_interval($link, $feed) * 60);
 672                                 }
 673
 674                                 $rss->init();
 675                         }
 676
 677                         if ($memcache && $rss) $memcache->add($obj_id, $rss, 0, 300);
 678                 }
 679
 680 //              print_r($rss);
 681
 682                 if ($debug_enabled) {
 683                         _debug("update_rss_feed: fetch done, parsing...");
 684                 }
 685
 686                 $feed = db_escape_string($feed);
 687
 688                 if ($update_method == 2) {
 689                         $fetch_ok = !$rss->error();
 690                 } else {
 691                         $fetch_ok = !!$rss;
 692                 }
 693
 694                 if ($fetch_ok) {
 695
 696                         if ($debug_enabled) {
 697                                 _debug("update_rss_feed: processing feed data...");
 698                         }
 699
 700 //                      db_query($link, "BEGIN");
 701
 702                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 703                                 FROM ttrss_feeds WHERE id = '$feed'");
 704
 705                         $registered_title = db_fetch_result($result, 0, "title");
 706                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 707                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 708
 709                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 710
 711                         if ($use_simplepie) {
 712                                 $site_url = $rss->get_link();
 713                         } else {
 714                                 $site_url = $rss->channel["link"];
 715                         }
 716
 717                         $site_url = rewrite_relative_url($fetch_url, $site_url);
 718
 719                         if ($debug_enabled) {
 720                                 _debug("update_rss_feed: checking favicon...");
 721                         }
 722
 723                         check_feed_favicon($site_url, $feed, $link);
 724
 725                         if (!$registered_title || $registered_title == "[Unknown]") {
 726
 727                                 if ($use_simplepie) {
 728                                         $feed_title = db_escape_string($rss->get_title());
 729                                 } else {
 730                                         $feed_title = db_escape_string($rss->channel["title"]);
 731                                 }
 732
 733                                 if ($debug_enabled) {
 734                                         _debug("update_rss_feed: registering title: $feed_title");
 735                                 }
 736
 737                                 db_query($link, "UPDATE ttrss_feeds SET
 738                                         title = '$feed_title' WHERE id = '$feed'");
 739                         }
 740
 741                         // weird, weird Magpie
 742                         if (!$use_simplepie) {
 743                                 if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 744                         }
 745
 746                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 747                                 db_query($link, "UPDATE ttrss_feeds SET
 748                                         site_url = '$site_url' WHERE id = '$feed'");
 749                         }
 750
 751 //                      print "I: " . $rss->channel["image"]["url"];
 752
 753                         if (!$use_simplepie) {
 754                                 $icon_url = db_escape_string($rss->image["url"]);
 755                         } else {
 756                                 $icon_url = db_escape_string($rss->get_image_url());
 757                         }
 758
 759                         $icon_url = substr($icon_url, 0, 250);
 760
 761                         if ($icon_url && $orig_icon_url != $icon_url) {
 762                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 763                         }
 764
 765                         if ($debug_enabled) {
 766                                 _debug("update_rss_feed: loading filters...");
 767                         }
 768
 769                         $filters = load_filters($link, $feed, $owner_uid);
 770
 771 //                      if ($debug_enabled) {
 772 //                              print_r($filters);
 773 //                      }
 774
 775                         if ($use_simplepie) {
 776                                 $iterator = $rss->get_items();
 777                         } else {
 778                                 $iterator = $rss->items;
 779                                 if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
 780                                 if (!$iterator || !is_array($iterator)) $iterator = $rss;
 781                         }
 782
 783                         if (!is_array($iterator)) {
 784                                 /* db_query($link, "UPDATE ttrss_feeds
 785                                         SET last_error = 'Parse error: can\'t find any articles.'
 786                                         WHERE id = '$feed'"); */
 787
 788                                 // clear any errors and mark feed as updated if fetched okay
 789                                 // even if it's blank
 790
 791                                 if ($debug_enabled) {
 792                                         _debug("update_rss_feed: entry iterator is not an array, no articles?");
 793                                 }
 794
 795                                 db_query($link, "UPDATE ttrss_feeds
 796                                         SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 797
 798                                 return; // no articles
 799                         }
 800
 801                         if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
 802
 803                                 if ($debug_enabled) _debug("update_rss_feed: checking for PUSH hub...");
 804
 805                                 $feed_hub_url = false;
 806                                 if ($use_simplepie) {
 807                                         $links = $rss->get_links('hub');
 808
 809                                         if ($links && is_array($links)) {
 810                                                 foreach ($links as $l) {
 811                                                         $feed_hub_url = $l;
 812                                                         break;
 813                                                 }
 814                                         }
 815
 816                                 } else {
 817                                         $atom = $rss->channel['atom'];
 818
 819                                         if ($atom) {
 820                                                 if ($atom['link@rel'] == 'hub') {
 821                                                         $feed_hub_url = $atom['link@href'];
 822                                                 }
 823
 824                                                 if (!$feed_hub_url && $atom['link#'] > 1) {
 825                                                         for ($i = 2; $i <= $atom['link#']; $i++) {
 826                                                                 if ($atom["link#$i@rel"] == 'hub') {
 827                                                                         $feed_hub_url = $atom["link#$i@href"];
 828                                                                         break;
 829                                                                 }
 830                                                         }
 831                                                 }
 832                                         } else {
 833                                                 $feed_hub_url = $rss->channel['link_hub'];
 834                                         }
 835                                 }
 836
 837                                 if ($debug_enabled) _debug("update_rss_feed: feed hub url: $feed_hub_url");
 838
 839                                 if ($feed_hub_url && function_exists('curl_init') &&
 840                                         !ini_get("open_basedir")) {
 841
 842                                         $callback_url = get_self_url_prefix() .
 843                                                 "/backend.php?op=pubsub&id=$feed";
 844
 845                                         $s = new Subscriber($feed_hub_url, $callback_url);
 846
 847                                         $rc = $s->subscribe($fetch_url);
 848
 849                                         if ($debug_enabled)
 850                                                 _debug("update_rss_feed: feed hub url found, subscribe request sent.");
 851
 852                                         db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 1
 853                                                 WHERE id = '$feed'");
 854                                 }
 855                         }
 856
 857                         if ($debug_enabled) {
 858                                 _debug("update_rss_feed: processing articles...");
 859                         }
 860
 861                         foreach ($iterator as $item) {
 862
 863                                 if ($_REQUEST['xdebug'] == 2) {
 864                                         print_r($item);
 865                                 }
 866
 867                                 if ($use_simplepie) {
 868                                         $entry_guid = $item->get_id();
 869                                         if (!$entry_guid) $entry_guid = $item->get_link();
 870                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
 871
 872                                 } else {
 873
 874                                         $entry_guid = $item["id"];
 875
 876                                         if (!$entry_guid) $entry_guid = $item["guid"];
 877                                         if (!$entry_guid) $entry_guid = $item["about"];
 878                                         if (!$entry_guid) $entry_guid = $item["link"];
 879                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
 880                                 }
 881
 882                                 if ($debug_enabled) {
 883                                         _debug("update_rss_feed: guid $entry_guid");
 884                                 }
 885
 886                                 if (!$entry_guid) continue;
 887
 888                                 $entry_timestamp = "";
 889
 890                                 if ($use_simplepie) {
 891                                         $entry_timestamp = strtotime($item->get_date());
 892                                 } else {
 893                                         $rss_2_date = $item['pubdate'];
 894                                         $rss_1_date = $item['dc']['date'];
 895                                         $atom_date = $item['issued'];
 896                                         if (!$atom_date) $atom_date = $item['updated'];
 897
 898                                         if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 899                                         if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 900                                         if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 901
 902                                 }
 903
 904                                 if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
 905                                         $entry_timestamp = time();
 906                                         $no_orig_date = 'true';
 907                                 } else {
 908                                         $no_orig_date = 'false';
 909                                 }
 910
 911                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 912
 913                                 if ($debug_enabled) {
 914                                         _debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
 915                                 }
 916
 917                                 if ($use_simplepie) {
 918                                         $entry_title = $item->get_title();
 919                                 } else {
 920                                         $entry_title = trim(strip_tags($item["title"]));
 921                                 }
 922
 923                                 if ($use_simplepie) {
 924                                         $entry_link = $item->get_link();
 925                                 } else {
 926                                         // strange Magpie workaround
 927                                         $entry_link = $item["link_"];
 928                                         if (!$entry_link) $entry_link = $item["link"];
 929                                 }
 930
 931                                 $entry_link = rewrite_relative_url($site_url, $entry_link);
 932
 933                                 if ($debug_enabled) {
 934                                         _debug("update_rss_feed: title $entry_title");
 935                                         _debug("update_rss_feed: link $entry_link");
 936                                 }
 937
 938                                 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
 939
 940                                 $entry_link = strip_tags($entry_link);
 941
 942                                 if ($use_simplepie) {
 943                                         $entry_content = $item->get_content();
 944                                         if (!$entry_content) $entry_content = $item->get_description();
 945                                 } else {
 946                                         $entry_content = $item["content:escaped"];
 947
 948                                         if (!$entry_content) $entry_content = $item["content:encoded"];
 949                                         if (!$entry_content) $entry_content = $item["content"]["encoded"];
 950                                         if (!$entry_content) $entry_content = $item["content"];
 951
 952                                         // Magpie bugs are getting ridiculous
 953                                         if (trim($entry_content) == "Array") $entry_content = false;
 954
 955                                         if (!$entry_content) $entry_content = $item["atom_content"];
 956                                         if (!$entry_content) $entry_content = $item["summary"];
 957
 958                                         if (!$entry_content ||
 959                                                 strlen($entry_content) < strlen($item["description"])) {
 960                                                         $entry_content = $item["description"];
 961                                         };
 962
 963                                         // WTF
 964                                         if (is_array($entry_content)) {
 965                                                 $entry_content = $entry_content["encoded"];
 966                                                 if (!$entry_content) $entry_content = $entry_content["escaped"];
 967                                         }
 968                                 }
 969
 970                                 if ($_REQUEST["xdebug"] == 2) {
 971                                         print "update_rss_feed: content: ";
 972                                         print_r(htmlspecialchars($entry_content));
 973                                 }
 974
 975                                 $entry_content_unescaped = $entry_content;
 976
 977                                 if ($use_simplepie) {
 978                                         $entry_comments = strip_tags($item->data["comments"]);
 979                                         if ($item->get_author()) {
 980                                                 $entry_author_item = $item->get_author();
 981                                                 $entry_author = $entry_author_item->get_name();
 982                                                 if (!$entry_author) $entry_author = $entry_author_item->get_email();
 983
 984                                                 $entry_author = db_escape_string($entry_author);
 985                                         }
 986                                 } else {
 987                                         $entry_comments = strip_tags($item["comments"]);
 988
 989                                         $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
 990
 991                                         if ($item['author']) {
 992
 993                                                 if (is_array($item['author'])) {
 994
 995                                                         if (!$entry_author) {
 996                                                                 $entry_author = db_escape_string(strip_tags($item['author']['name']));
 997                                                         }
 998
 999                                                         if (!$entry_author) {
1000                                                                 $entry_author = db_escape_string(strip_tags($item['author']['email']));
1001                                                         }
1002                                                 }
1003
1004                                                 if (!$entry_author) {
1005                                                         $entry_author = db_escape_string(strip_tags($item['author']));
1006                                                 }
1007                                         }
1008                                 }
1009
1010                                 if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
1011
1012                                 $entry_guid = db_escape_string(strip_tags($entry_guid));
1013                                 $entry_guid = mb_substr($entry_guid, 0, 250);
1014
1015                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
1016                                         WHERE guid = '$entry_guid'");
1017
1018                                 $entry_content = db_escape_string($entry_content, false);
1019
1020                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
1021
1022                                 $entry_title = db_escape_string($entry_title);
1023                                 $entry_link = db_escape_string($entry_link);
1024                                 $entry_comments = mb_substr(db_escape_string($entry_comments), 0, 250);
1025                                 $entry_author = mb_substr($entry_author, 0, 250);
1026
1027                                 if ($use_simplepie) {
1028                                         $num_comments = 0; #FIXME#
1029                                 } else {
1030                                         $num_comments = db_escape_string($item["slash"]["comments"]);
1031                                 }
1032
1033                                 if (!$num_comments) $num_comments = 0;
1034
1035                                 if ($debug_enabled) {
1036                                         _debug("update_rss_feed: looking for tags [1]...");
1037                                 }
1038
1039                                 // parse <category> entries into tags
1040
1041                                 $additional_tags = array();
1042
1043                                 if ($use_simplepie) {
1044
1045                                         $additional_tags_src = $item->get_categories();
1046
1047                                         if (is_array($additional_tags_src)) {
1048                                                 foreach ($additional_tags_src as $tobj) {
1049                                                         array_push($additional_tags, $tobj->get_term());
1050                                                 }
1051                                         }
1052
1053                                         if ($debug_enabled) {
1054                                                 _debug("update_rss_feed: category tags:");
1055                                                 print_r($additional_tags);
1056                                         }
1057
1058                                 } else {
1059
1060                                         $t_ctr = $item['category#'];
1061
1062                                         if ($t_ctr == 0) {
1063                                                 $additional_tags = array();
1064                                         } else if ($t_ctr > 0) {
1065                                                 $additional_tags = array($item['category']);
1066
1067                                                 if ($item['category@term']) {
1068                                                         array_push($additional_tags, $item['category@term']);
1069                                                 }
1070
1071                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
1072                                                         if ($item["category#$i"]) {
1073                                                                 array_push($additional_tags, $item["category#$i"]);
1074                                                         }
1075
1076                                                         if ($item["category#$i@term"]) {
1077                                                                 array_push($additional_tags, $item["category#$i@term"]);
1078                                                         }
1079                                                 }
1080                                         }
1081
1082                                         // parse <dc:subject> elements
1083
1084                                         $t_ctr = $item['dc']['subject#'];
1085
1086                                         if ($t_ctr > 0) {
1087                                                 array_push($additional_tags, $item['dc']['subject']);
1088
1089                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
1090                                                         if ($item['dc']["subject#$i"]) {
1091                                                                 array_push($additional_tags, $item['dc']["subject#$i"]);
1092                                                         }
1093                                                 }
1094                                         }
1095                                 }
1096
1097                                 if ($debug_enabled) {
1098                                         _debug("update_rss_feed: looking for tags [2]...");
1099                                 }
1100
1101                                 /* taaaags */
1102                                 // <a href="..." rel="tag">Xorg</a>, //
1103
1104                                 $entry_tags = null;
1105
1106                                 preg_match_all("/<a.*?rel=['\"]tag['\"].*?\>([^<]+)<\/a>/i",
1107                                         $entry_content_unescaped, $entry_tags);
1108
1109                                 $entry_tags = $entry_tags[1];
1110
1111                                 $entry_tags = array_merge($entry_tags, $additional_tags);
1112                                 $entry_tags = array_unique($entry_tags);
1113
1114                                 for ($i = 0; $i < count($entry_tags); $i++)
1115                                         $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
1116
1117                                 if ($debug_enabled) {
1118                                         _debug("update_rss_feed: unfiltered tags found:");
1119                                         print_r($entry_tags);
1120                                 }
1121
1122                                 # sanitize content
1123
1124                                 $entry_content = sanitize_article_content($entry_content);
1125                                 $entry_title = sanitize_article_content($entry_title);
1126
1127                                 if ($debug_enabled) {
1128                                         _debug("update_rss_feed: done collecting data [TITLE:$entry_title]");
1129                                 }
1130
1131                                 db_query($link, "BEGIN");
1132
1133                                 if (db_num_rows($result) == 0) {
1134
1135                                         if ($debug_enabled) {
1136                                                 _debug("update_rss_feed: base guid not found");
1137                                         }
1138
1139                                         // base post entry does not exist, create it
1140
1141                                         $result = db_query($link,
1142                                                 "INSERT INTO ttrss_entries
1143                                                         (title,
1144                                                         guid,
1145                                                         link,
1146                                                         updated,
1147                                                         content,
1148                                                         content_hash,
1149                                                         no_orig_date,
1150                                                         date_updated,
1151                                                         date_entered,
1152                                                         comments,
1153                                                         num_comments,
1154                                                         author)
1155                                                 VALUES
1156                                                         ('$entry_title',
1157                                                         '$entry_guid',
1158                                                         '$entry_link',
1159                                                         '$entry_timestamp_fmt',
1160                                                         '$entry_content',
1161                                                         '$content_hash',
1162                                                         $no_orig_date,
1163                                                         NOW(),
1164                                                         NOW(),
1165                                                         '$entry_comments',
1166                                                         '$num_comments',
1167                                                         '$entry_author')");
1168                                 } else {
1169                                         // we keep encountering the entry in feeds, so we need to
1170                                         // update date_updated column so that we don't get horrible
1171                                         // dupes when the entry gets purged and reinserted again e.g.
1172                                         // in the case of SLOW SLOW OMG SLOW updating feeds
1173
1174                                         $base_entry_id = db_fetch_result($result, 0, "id");
1175
1176                                         db_query($link, "UPDATE ttrss_entries SET date_updated = NOW()
1177                                                 WHERE id = '$base_entry_id'");
1178                                 }
1179
1180                                 // now it should exist, if not - bad luck then
1181
1182                                 $result = db_query($link, "SELECT
1183                                                 id,content_hash,no_orig_date,title,
1184                                                 ".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
1185                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
1186                                                 num_comments
1187                                         FROM
1188                                                 ttrss_entries
1189                                         WHERE guid = '$entry_guid'");
1190
1191                                 $entry_ref_id = 0;
1192                                 $entry_int_id = 0;
1193
1194                                 if (db_num_rows($result) == 1) {
1195
1196                                         if ($debug_enabled) {
1197                                                 _debug("update_rss_feed: base guid found, checking for user record");
1198                                         }
1199
1200                                         // this will be used below in update handler
1201                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
1202                                         $orig_title = db_fetch_result($result, 0, "title");
1203                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
1204                                         $orig_date_updated = strtotime(db_fetch_result($result,
1205                                                 0, "date_updated"));
1206
1207                                         $ref_id = db_fetch_result($result, 0, "id");
1208                                         $entry_ref_id = $ref_id;
1209
1210                                         // check for user post link to main table
1211
1212                                         // do we allow duplicate posts with same GUID in different feeds?
1213                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
1214                                                 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
1215                                         } else {
1216                                                 $dupcheck_qpart = "";
1217                                         }
1218
1219                                         /* Collect article tags here so we could filter by them: */
1220
1221                                         $article_filters = get_article_filters($filters, $entry_title,
1222                                                 $entry_content, $entry_link, $entry_timestamp, $entry_author,
1223                                                 $entry_tags);
1224
1225                                         if ($debug_enabled) {
1226                                                 _debug("update_rss_feed: article filters: ");
1227                                                 if (count($article_filters) != 0) {
1228                                                         print_r($article_filters);
1229                                                 }
1230                                         }
1231
1232                                         if (find_article_filter($article_filters, "filter")) {
1233                                                 db_query($link, "COMMIT"); // close transaction in progress
1234                                                 continue;
1235                                         }
1236
1237                                         $score = calculate_article_score($article_filters);
1238
1239                                         if ($debug_enabled) {
1240                                                 _debug("update_rss_feed: initial score: $score");
1241                                         }
1242
1243                                         $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
1244                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
1245                                                         $dupcheck_qpart";
1246
1247 //                                      if ($_REQUEST["xdebug"]) print "$query\n";
1248
1249                                         $result = db_query($link, $query);
1250
1251                                         // okay it doesn't exist - create user entry
1252                                         if (db_num_rows($result) == 0) {
1253
1254                                                 if ($debug_enabled) {
1255                                                         _debug("update_rss_feed: user record not found, creating...");
1256                                                 }
1257
1258                                                 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
1259                                                         $unread = 'true';
1260                                                         $last_read_qpart = 'NULL';
1261                                                 } else {
1262                                                         $unread = 'false';
1263                                                         $last_read_qpart = 'NOW()';
1264                                                 }
1265
1266                                                 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
1267                                                         $marked = 'true';
1268                                                 } else {
1269                                                         $marked = 'false';
1270                                                 }
1271
1272                                                 if (find_article_filter($article_filters, 'publish')) {
1273                                                         $published = 'true';
1274                                                 } else {
1275                                                         $published = 'false';
1276                                                 }
1277
1278                                                 $result = db_query($link,
1279                                                         "INSERT INTO ttrss_user_entries
1280                                                                 (ref_id, owner_uid, feed_id, unread, last_read, marked,
1281                                                                         published, score, tag_cache, label_cache, uuid)
1282                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
1283                                                                 $last_read_qpart, $marked, $published, '$score', '', '', '')");
1284
1285                                                 if (PUBSUBHUBBUB_HUB && $published == 'true') {
1286                                                         $rss_link = get_self_url_prefix() .
1287                                                                 "/backend.php?op=rss&id=-2&key=" .
1288                                                                 get_feed_access_key($link, -2, false, $owner_uid);
1289
1290                                                         $p = new Publisher(PUBSUBHUBBUB_HUB);
1291
1292                                                         $pubsub_result = $p->publish_update($rss_link);
1293                                                 }
1294
1295                                                 $result = db_query($link,
1296                                                         "SELECT int_id FROM ttrss_user_entries WHERE
1297                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
1298                                                                 feed_id = '$feed' LIMIT 1");
1299
1300                                                 if (db_num_rows($result) == 1) {
1301                                                         $entry_int_id = db_fetch_result($result, 0, "int_id");
1302                                                 }
1303                                         } else {
1304                                                 if ($debug_enabled) {
1305                                                         _debug("update_rss_feed: user record FOUND");
1306                                                 }
1307
1308                                                 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
1309                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
1310                                         }
1311
1312                                         if ($debug_enabled) {
1313                                                 _debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
1314                                         }
1315
1316                                         $post_needs_update = false;
1317                                         $update_insignificant = false;
1318
1319                                         if ($orig_num_comments != $num_comments) {
1320                                                 $post_needs_update = true;
1321                                                 $update_insignificant = true;
1322                                         }
1323
1324                                         if ($content_hash != $orig_content_hash) {
1325                                                 $post_needs_update = true;
1326                                                 $update_insignificant = false;
1327                                         }
1328
1329                                         if (db_escape_string($orig_title) != $entry_title) {
1330                                                 $post_needs_update = true;
1331                                                 $update_insignificant = false;
1332                                         }
1333
1334                                         // if post needs update, update it and mark all user entries
1335                                         // linking to this post as updated
1336                                         if ($post_needs_update) {
1337
1338                                                 if (defined('DAEMON_EXTENDED_DEBUG')) {
1339                                                         _debug("update_rss_feed: post $entry_guid needs update...");
1340                                                 }
1341
1342 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
1343
1344                                                 db_query($link, "UPDATE ttrss_entries
1345                                                         SET title = '$entry_title', content = '$entry_content',
1346                                                                 content_hash = '$content_hash',
1347                                                                 updated = '$entry_timestamp_fmt',
1348                                                                 num_comments = '$num_comments'
1349                                                         WHERE id = '$ref_id'");
1350
1351                                                 if (!$update_insignificant) {
1352                                                         if ($mark_unread_on_update) {
1353                                                                 db_query($link, "UPDATE ttrss_user_entries
1354                                                                         SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
1355                                                         } else if ($update_on_checksum_change) {
1356                                                                 db_query($link, "UPDATE ttrss_user_entries
1357                                                                         SET last_read = null WHERE ref_id = '$ref_id'
1358                                                                                 AND unread = false");
1359                                                         }
1360                                                 }
1361                                         }
1362                                 }
1363
1364                                 db_query($link, "COMMIT");
1365
1366                                 if ($debug_enabled) {
1367                                         _debug("update_rss_feed: assigning labels...");
1368                                 }
1369
1370                                 assign_article_to_labels($link, $entry_ref_id, $article_filters,
1371                                         $owner_uid);
1372
1373                                 if ($debug_enabled) {
1374                                         _debug("update_rss_feed: looking for enclosures...");
1375                                 }
1376
1377                                 // enclosures
1378
1379                                 $enclosures = array();
1380
1381                                 if ($use_simplepie) {
1382                                         $encs = $item->get_enclosures();
1383
1384                                         if (is_array($encs)) {
1385                                                 foreach ($encs as $e) {
1386                                                         $e_item = array(
1387                                                                 $e->link, $e->type, $e->length);
1388
1389                                                         array_push($enclosures, $e_item);
1390                                                 }
1391                                         }
1392
1393                                 } else {
1394                                         // <enclosure>
1395
1396                                         $e_ctr = $item['enclosure#'];
1397
1398                                         if ($e_ctr > 0) {
1399                                                 $e_item = array($item['enclosure@url'],
1400                                                         $item['enclosure@type'],
1401                                                         $item['enclosure@length']);
1402
1403                                                 array_push($enclosures, $e_item);
1404
1405                                                 for ($i = 0; $i <= $e_ctr; $i++ ) {
1406
1407                                                         if ($item["enclosure#$i@url"]) {
1408                                                                 $e_item = array($item["enclosure#$i@url"],
1409                                                                         $item["enclosure#$i@type"],
1410                                                                         $item["enclosure#$i@length"]);
1411                                                                 array_push($enclosures, $e_item);
1412                                                         }
1413                                                 }
1414                                         }
1415
1416                                         // <media:content>
1417                                         // can there be many of those? yes -fox
1418
1419                                         $m_ctr = $item['media']['content#'];
1420
1421                                         if ($m_ctr > 0) {
1422                                                 $e_item = array($item['media']['content@url'],
1423                                                         $item['media']['content@medium'],
1424                                                         $item['media']['content@length']);
1425
1426                                                 array_push($enclosures, $e_item);
1427
1428                                                 for ($i = 0; $i <= $m_ctr; $i++ ) {
1429
1430                                                         if ($item["media"]["content#$i@url"]) {
1431                                                                 $e_item = array($item["media"]["content#$i@url"],
1432                                                                         $item["media"]["content#$i@medium"],
1433                                                                         $item["media"]["content#$i@length"]);
1434                                                                 array_push($enclosures, $e_item);
1435                                                         }
1436                                                 }
1437
1438                                         }
1439                                 }
1440
1441
1442                                 if ($debug_enabled) {
1443                                         _debug("update_rss_feed: article enclosures:");
1444                                         print_r($enclosures);
1445                                 }
1446
1447                                 db_query($link, "BEGIN");
1448
1449                                 foreach ($enclosures as $enc) {
1450                                         $enc_url = db_escape_string($enc[0]);
1451                                         $enc_type = db_escape_string($enc[1]);
1452                                         $enc_dur = db_escape_string($enc[2]);
1453
1454                                         $result = db_query($link, "SELECT id FROM ttrss_enclosures
1455                                                 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1456
1457                                         if (db_num_rows($result) == 0) {
1458                                                 db_query($link, "INSERT INTO ttrss_enclosures
1459                                                         (content_url, content_type, title, duration, post_id) VALUES
1460                                                         ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
1461                                         }
1462                                 }
1463
1464                                 db_query($link, "COMMIT");
1465
1466                                 // check for manual tags (we have to do it here since they're loaded from filters)
1467
1468                                 foreach ($article_filters as $f) {
1469                                         if ($f[0] == "tag") {
1470
1471                                                 $manual_tags = trim_array(explode(",", $f[1]));
1472
1473                                                 foreach ($manual_tags as $tag) {
1474                                                         if (tag_is_valid($tag)) {
1475                                                                 array_push($entry_tags, $tag);
1476                                                         }
1477                                                 }
1478                                         }
1479                                 }
1480
1481                                 // Skip boring tags
1482
1483                                 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref($link,
1484                                         'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1485
1486                                 $filtered_tags = array();
1487                                 $tags_to_cache = array();
1488
1489                                 if ($entry_tags && is_array($entry_tags)) {
1490                                         foreach ($entry_tags as $tag) {
1491                                                 if (array_search($tag, $boring_tags) === false) {
1492                                                         array_push($filtered_tags, $tag);
1493                                                 }
1494                                         }
1495                                 }
1496
1497                                 $filtered_tags = array_unique($filtered_tags);
1498
1499                                 if ($debug_enabled) {
1500                                         _debug("update_rss_feed: filtered article tags:");
1501                                         print_r($filtered_tags);
1502                                 }
1503
1504                                 // Save article tags in the database
1505
1506                                 if (count($filtered_tags) > 0) {
1507
1508                                         db_query($link, "BEGIN");
1509
1510                                         foreach ($filtered_tags as $tag) {
1511
1512                                                 $tag = sanitize_tag($tag);
1513                                                 $tag = db_escape_string($tag);
1514
1515                                                 if (!tag_is_valid($tag)) continue;
1516
1517                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
1518                                                         WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1519                                                         owner_uid = '$owner_uid' LIMIT 1");
1520
1521                                                         if ($result && db_num_rows($result) == 0) {
1522
1523                                                                 db_query($link, "INSERT INTO ttrss_tags
1524                                                                         (owner_uid,tag_name,post_int_id)
1525                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
1526                                                         }
1527
1528                                                 array_push($tags_to_cache, $tag);
1529                                         }
1530
1531                                         /* update the cache */
1532
1533                                         $tags_to_cache = array_unique($tags_to_cache);
1534
1535                                         $tags_str = db_escape_string(join(",", $tags_to_cache));
1536
1537                                         db_query($link, "UPDATE ttrss_user_entries
1538                                                 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1539                                                 AND owner_uid = $owner_uid");
1540
1541                                         db_query($link, "COMMIT");
1542                                 }
1543
1544                                 if ($debug_enabled) {
1545                                         _debug("update_rss_feed: article processed");
1546                                 }
1547                         }
1548
1549                         if (!$last_updated) {
1550                                 if ($debug_enabled) {
1551                                         _debug("update_rss_feed: new feed, catching it up...");
1552                                 }
1553                                 catchup_feed($link, $feed, false, $owner_uid);
1554                         }
1555
1556                         if ($debug_enabled) {
1557                                 _debug("purging feed...");
1558                         }
1559
1560                         purge_feed($link, $feed, 0, $debug_enabled);
1561
1562                         db_query($link, "UPDATE ttrss_feeds
1563                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1564
1565 //                      db_query($link, "COMMIT");
1566
1567                 } else {
1568
1569                         if ($use_simplepie) {
1570                                 $error_msg = mb_substr($rss->error(), 0, 250);
1571                         } else {
1572                                 $error_msg = mb_substr(magpie_error(), 0, 250);
1573                         }
1574
1575                         if ($debug_enabled) {
1576                                 _debug("update_rss_feed: error fetching feed: $error_msg");
1577                         }
1578
1579                         $error_msg = db_escape_string($error_msg);
1580
1581                         db_query($link,
1582                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1583                                         last_updated = NOW() WHERE id = '$feed'");
1584                 }
1585
1586                 if ($use_simplepie) {
1587                         unset($rss);
1588                 }
1589
1590                 if ($debug_enabled) {
1591                         _debug("update_rss_feed: done");
1592                 }
1593
1594         }
1595
1596         function print_select($id, $default, $values, $attributes = "") {
1597                 print "<select name=\"$id\" id=\"$id\" $attributes>";
1598                 foreach ($values as $v) {
1599                         if ($v == $default)
1600                                 $sel = "selected=\"1\"";
1601                          else
1602                                 $sel = "";
1603
1604                         print "<option value=\"$v\" $sel>$v</option>";
1605                 }
1606                 print "</select>";
1607         }
1608
1609         function print_select_hash($id, $default, $values, $attributes = "") {
1610                 print "<select name=\"$id\" id='$id' $attributes>";
1611                 foreach (array_keys($values) as $v) {
1612                         if ($v == $default)
1613                                 $sel = 'selected="selected"';
1614                          else
1615                                 $sel = "";
1616
1617                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
1618                 }
1619
1620                 print "</select>";
1621         }
1622
1623         function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1624                 $matches = array();
1625
1626                 if ($filters["title"]) {
1627                         foreach ($filters["title"] as $filter) {
1628                                 $reg_exp = $filter["reg_exp"];
1629                                 $inverse = $filter["inverse"];
1630                                 if ((!$inverse && @preg_match("/$reg_exp/i", $title)) ||
1631                                                 ($inverse && !@preg_match("/$reg_exp/i", $title))) {
1632
1633                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1634                                 }
1635                         }
1636                 }
1637
1638                 if ($filters["content"]) {
1639                         foreach ($filters["content"] as $filter) {
1640                                 $reg_exp = $filter["reg_exp"];
1641                                 $inverse = $filter["inverse"];
1642
1643                                 if ((!$inverse && @preg_match("/$reg_exp/i", $content)) ||
1644                                                 ($inverse && !@preg_match("/$reg_exp/i", $content))) {
1645
1646                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1647                                 }
1648                         }
1649                 }
1650
1651                 if ($filters["both"]) {
1652                         foreach ($filters["both"] as $filter) {
1653                                 $reg_exp = $filter["reg_exp"];
1654                                 $inverse = $filter["inverse"];
1655
1656                                 if ($inverse) {
1657                                         if (!@preg_match("/$reg_exp/i", $title) && !preg_match("/$reg_exp/i", $content)) {
1658                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1659                                         }
1660                                 } else {
1661                                         if (@preg_match("/$reg_exp/i", $title) || preg_match("/$reg_exp/i", $content)) {
1662                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1663                                         }
1664                                 }
1665                         }
1666                 }
1667
1668                 if ($filters["link"]) {
1669                         $reg_exp = $filter["reg_exp"];
1670                         foreach ($filters["link"] as $filter) {
1671                                 $reg_exp = $filter["reg_exp"];
1672                                 $inverse = $filter["inverse"];
1673
1674                                 if ((!$inverse && @preg_match("/$reg_exp/i", $link)) ||
1675                                                 ($inverse && !@preg_match("/$reg_exp/i", $link))) {
1676
1677                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1678                                 }
1679                         }
1680                 }
1681
1682                 if ($filters["date"]) {
1683                         $reg_exp = $filter["reg_exp"];
1684                         foreach ($filters["date"] as $filter) {
1685                                 $date_modifier = $filter["filter_param"];
1686                                 $inverse = $filter["inverse"];
1687                                 $check_timestamp = strtotime($filter["reg_exp"]);
1688
1689                                 # no-op when timestamp doesn't parse to prevent misfires
1690
1691                                 if ($check_timestamp) {
1692                                         $match_ok = false;
1693
1694                                         if ($date_modifier == "before" && $timestamp < $check_timestamp ||
1695                                                 $date_modifier == "after" && $timestamp > $check_timestamp) {
1696                                                         $match_ok = true;
1697                                         }
1698
1699                                         if ($inverse) $match_ok = !$match_ok;
1700
1701                                         if ($match_ok) {
1702                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1703                                         }
1704                                 }
1705                         }
1706                 }
1707
1708                 if ($filters["author"]) {
1709                         foreach ($filters["author"] as $filter) {
1710                                 $reg_exp = $filter["reg_exp"];
1711                                 $inverse = $filter["inverse"];
1712                                 if ((!$inverse && @preg_match("/$reg_exp/i", $author)) ||
1713                                                 ($inverse && !@preg_match("/$reg_exp/i", $author))) {
1714
1715                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1716                                 }
1717                         }
1718                 }
1719
1720                 if ($filters["tag"]) {
1721
1722                         $tag_string = join(",", $tags);
1723
1724                         foreach ($filters["tag"] as $filter) {
1725                                 $reg_exp = $filter["reg_exp"];
1726                                 $inverse = $filter["inverse"];
1727
1728                                 if ((!$inverse && @preg_match("/$reg_exp/i", $tag_string)) ||
1729                                                 ($inverse && !@preg_match("/$reg_exp/i", $tag_string))) {
1730
1731                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1732                                 }
1733                         }
1734                 }
1735
1736
1737                 return $matches;
1738         }
1739
1740         function find_article_filter($filters, $filter_name) {
1741                 foreach ($filters as $f) {
1742                         if ($f[0] == $filter_name) {
1743                                 return $f;
1744                         };
1745                 }
1746                 return false;
1747         }
1748
1749         function calculate_article_score($filters) {
1750                 $score = 0;
1751
1752                 foreach ($filters as $f) {
1753                         if ($f[0] == "score") {
1754                                 $score += $f[1];
1755                         };
1756                 }
1757                 return $score;
1758         }
1759
1760         function assign_article_to_labels($link, $id, $filters, $owner_uid) {
1761                 foreach ($filters as $f) {
1762                         if ($f[0] == "label") {
1763                                 label_add_article($link, $id, $f[1], $owner_uid);
1764                         };
1765                 }
1766         }
1767
1768         function getmicrotime() {
1769                 list($usec, $sec) = explode(" ",microtime());
1770                 return ((float)$usec + (float)$sec);
1771         }
1772
1773         function print_radio($id, $default, $true_is, $values, $attributes = "") {
1774                 foreach ($values as $v) {
1775
1776                         if ($v == $default)
1777                                 $sel = "checked";
1778                          else
1779                                 $sel = "";
1780
1781                         if ($v == $true_is) {
1782                                 $sel .= " value=\"1\"";
1783                         } else {
1784                                 $sel .= " value=\"0\"";
1785                         }
1786
1787                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
1788                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
1789
1790                 }
1791         }
1792
1793         function initialize_user_prefs($link, $uid, $profile = false) {
1794
1795                 $uid = db_escape_string($uid);
1796
1797                 if (!$profile) {
1798                         $profile = "NULL";
1799                         $profile_qpart = "AND profile IS NULL";
1800                 } else {
1801                         $profile_qpart = "AND profile = '$profile'";
1802                 }
1803
1804                 if (get_schema_version($link) < 63) $profile_qpart = "";
1805
1806                 db_query($link, "BEGIN");
1807
1808                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
1809
1810                 $u_result = db_query($link, "SELECT pref_name
1811                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
1812
1813                 $active_prefs = array();
1814
1815                 while ($line = db_fetch_assoc($u_result)) {
1816                         array_push($active_prefs, $line["pref_name"]);
1817                 }
1818
1819                 while ($line = db_fetch_assoc($result)) {
1820                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
1821 //                              print "adding " . $line["pref_name"] . "<br>";
1822
1823                                 if (get_schema_version($link) < 63) {
1824                                         db_query($link, "INSERT INTO ttrss_user_prefs
1825                                                 (owner_uid,pref_name,value) VALUES
1826                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
1827
1828                                 } else {
1829                                         db_query($link, "INSERT INTO ttrss_user_prefs
1830                                                 (owner_uid,pref_name,value, profile) VALUES
1831                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
1832                                 }
1833
1834                         }
1835                 }
1836
1837                 db_query($link, "COMMIT");
1838
1839         }
1840
1841         function lookup_user_id($link, $user) {
1842
1843                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$user'");
1844
1845                 if (db_num_rows($result) == 1) {
1846                         return db_fetch_result($result, 0, "id");
1847                 } else {
1848                         return false;
1849                 }
1850         }
1851
1852 /*      function http_authenticate_user($link) {
1853                 if (!$_SERVER["PHP_AUTH_USER"]) {
1854
1855                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1856                         header('HTTP/1.0 401 Unauthorized');
1857                         exit;
1858
1859                 } else {
1860                         $auth_result = authenticate_user($link,
1861                                 $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
1862
1863                         if (!$auth_result) {
1864                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1865                                 header('HTTP/1.0 401 Unauthorized');
1866                                 exit;
1867                         }
1868                 }
1869
1870                 return true;
1871         } */
1872
1873         function get_ssl_certificate_id() {
1874                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
1875                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
1876                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
1877                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
1878                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
1879                 }
1880                 return "";
1881         }
1882
1883         function get_login_by_ssl_certificate($link) {
1884
1885                 $cert_serial = db_escape_string(get_ssl_certificate_id());
1886
1887                 if ($cert_serial) {
1888                         $result = db_query($link, "SELECT login FROM ttrss_user_prefs, ttrss_users
1889                                 WHERE pref_name = 'SSL_CERT_SERIAL' AND value = '$cert_serial' AND
1890                                 owner_uid = ttrss_users.id");
1891
1892                         if (db_num_rows($result) != 0) {
1893                                 return db_escape_string(db_fetch_result($result, 0, "login"));
1894                         }
1895                 }
1896
1897                 return "";
1898         }
1899
1900         function get_remote_user($link) {
1901
1902                 if (defined('ALLOW_REMOTE_USER_AUTH') && ALLOW_REMOTE_USER_AUTH) {
1903                         return db_escape_string($_SERVER["REMOTE_USER"]);
1904                 }
1905
1906                 return db_escape_string(get_login_by_ssl_certificate($link));
1907         }
1908
1909         function get_remote_fakepass($link) {
1910                 if (get_remote_user($link))
1911                         return "******";
1912                 else
1913                         return "";
1914         }
1915
1916         function authenticate_user($link, $login, $password, $force_auth = false) {
1917
1918                 if (!SINGLE_USER_MODE) {
1919
1920                         $pwd_hash1 = encrypt_password($password);
1921                         $pwd_hash2 = encrypt_password($password, $login);
1922                         $login = db_escape_string($login);
1923
1924                         $remote_user = get_remote_user($link);
1925
1926                         if ($remote_user && $remote_user == $login && $login != "admin") {
1927
1928                                 $login = $remote_user;
1929
1930                                 $query = "SELECT id,login,access_level,pwd_hash
1931                     FROM ttrss_users WHERE
1932                                         login = '$login'";
1933
1934                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER
1935                                                 && $_SERVER["REMOTE_USER"]) {
1936                                         $result = db_query($link, $query);
1937
1938                                         // First login ?
1939                                         if (db_num_rows($result) == 0) {
1940                                                 $query2 = "INSERT INTO ttrss_users
1941                                                                 (login,access_level,last_login,created)
1942                                                                 VALUES ('$login', 0, null, NOW())";
1943                                                 db_query($link, $query2);
1944                                         }
1945                                 }
1946
1947                         } else {
1948                                 $query = "SELECT id,login,access_level,pwd_hash
1949                     FROM ttrss_users WHERE
1950                                         login = '$login' AND (pwd_hash = '$pwd_hash1' OR
1951                                                 pwd_hash = '$pwd_hash2')";
1952                         }
1953
1954                         $result = db_query($link, $query);
1955
1956                         if (db_num_rows($result) == 1) {
1957                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
1958                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
1959                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
1960
1961                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
1962                                         $_SESSION["uid"]);
1963
1964
1965                                 // LemonLDAP can send user informations via HTTP HEADER
1966                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER){
1967                                         // update user name
1968                                         $fullname = $_SERVER['HTTP_USER_NAME'] ? $_SERVER['HTTP_USER_NAME'] : $_SERVER['AUTHENTICATE_CN'];
1969                                         if ($fullname){
1970                                                 $fullname = db_escape_string($fullname);
1971                                                 db_query($link, "UPDATE ttrss_users SET full_name = '$fullname' WHERE id = " .
1972                                                         $_SESSION["uid"]);
1973                                         }
1974                                         // update user mail
1975                                         $email = $_SERVER['HTTP_USER_MAIL'] ? $_SERVER['HTTP_USER_MAIL'] : $_SERVER['AUTHENTICATE_MAIL'];
1976                                         if ($email){
1977                                                 $email = db_escape_string($email);
1978                                                 db_query($link, "UPDATE ttrss_users SET email = '$email' WHERE id = " .
1979                                                         $_SESSION["uid"]);
1980                                         }
1981                                 }
1982
1983                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1984                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
1985
1986                                 $_SESSION["last_version_check"] = time();
1987
1988                                 initialize_user_prefs($link, $_SESSION["uid"]);
1989
1990                                 return true;
1991                         }
1992
1993                         return false;
1994
1995                 } else {
1996
1997                         $_SESSION["uid"] = 1;
1998                         $_SESSION["name"] = "admin";
1999
2000                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
2001
2002                         initialize_user_prefs($link, $_SESSION["uid"]);
2003
2004                         return true;
2005                 }
2006         }
2007
2008         function make_password($length = 8) {
2009
2010                 $password = "";
2011                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
2012
2013         $i = 0;
2014
2015                 while ($i < $length) {
2016                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
2017
2018                         if (!strstr($password, $char)) {
2019                                 $password .= $char;
2020                                 $i++;
2021                         }
2022                 }
2023                 return $password;
2024         }
2025
2026         // this is called after user is created to initialize default feeds, labels
2027         // or whatever else
2028
2029         // user preferences are checked on every login, not here
2030
2031         function initialize_user($link, $uid) {
2032
2033                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
2034                         values ('$uid', 'Tiny Tiny RSS: New Releases',
2035                         'http://tt-rss.org/releases.rss')");
2036
2037                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
2038                         values ('$uid', 'Tiny Tiny RSS: Forum',
2039                                 'http://tt-rss.org/forum/rss.php')");
2040         }
2041
2042         function logout_user() {
2043                 session_destroy();
2044                 if (isset($_COOKIE[session_name()])) {
2045                    setcookie(session_name(), '', time()-42000, '/');
2046                 }
2047         }
2048
2049         function get_script_urlpath() {
2050                 return preg_replace('/\/[^\/]*$/', "", $_SERVER["REQUEST_URI"]);
2051         }
2052
2053         function validate_session($link) {
2054                 if (SINGLE_USER_MODE) return true;
2055
2056                 $check_ip = $_SESSION['ip_address'];
2057
2058                 switch (SESSION_CHECK_ADDRESS) {
2059                 case 0:
2060                         $check_ip = '';
2061                         break;
2062                 case 1:
2063                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
2064                         break;
2065                 case 2:
2066                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
2067                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
2068                         break;
2069                 };
2070
2071                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) {
2072                         $_SESSION["login_error_msg"] =
2073                                 __("Session failed to validate (incorrect IP)");
2074                         return false;
2075                 }
2076
2077                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
2078                         return false;
2079
2080                 if ($_SESSION["uid"]) {
2081
2082                         $result = db_query($link,
2083                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
2084
2085                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
2086
2087                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
2088                                 return false;
2089                         }
2090                 }
2091
2092 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
2093
2094                         //print_r($_SESSION);
2095
2096                         if (time() > $_SESSION["cookie_lifetime"]) {
2097                                 return false;
2098                         }
2099                 } */
2100
2101                 return true;
2102         }
2103
2104         function login_sequence($link, $mobile = false) {
2105                 $_SESSION["prefs_cache"] = array();
2106
2107                 if (!SINGLE_USER_MODE) {
2108
2109                         $login_action = $_POST["login_action"];
2110
2111                         # try to authenticate user if called from login form
2112                         if ($login_action == "do_login") {
2113                                 $login = $_POST["login"];
2114                                 $password = $_POST["password"];
2115                                 $remember_me = $_POST["remember_me"];
2116
2117                                 if (authenticate_user($link, $login, $password)) {
2118                                         $_POST["password"] = "";
2119
2120                                         $_SESSION["language"] = $_POST["language"];
2121                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
2122                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
2123
2124                                         if ($_POST["profile"]) {
2125
2126                                                 $profile = db_escape_string($_POST["profile"]);
2127
2128                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
2129                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
2130
2131                                                 if (db_num_rows($result) != 0) {
2132                                                         $_SESSION["profile"] = $profile;
2133                                                         $_SESSION["prefs_cache"] = array();
2134                                                 }
2135                                         }
2136
2137                                         if ($_REQUEST['return']) {
2138                                                 header("Location: " . $_REQUEST['return']);
2139                                         } else {
2140                                                 header("Location: " . $_SERVER["REQUEST_URI"]);
2141                                         }
2142
2143                                         exit;
2144
2145                                         return;
2146                                 } else {
2147                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
2148                                 }
2149                         }
2150
2151                         if (!$_SESSION["uid"] || !validate_session($link)) {
2152
2153                                 if (get_remote_user($link) && AUTO_LOGIN) {
2154                                     authenticate_user($link, get_remote_user($link), null);
2155                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
2156                                 } else {
2157                                     render_login_form($link, $mobile);
2158                                     //header("Location: login.php");
2159                                     exit;
2160                                 }
2161                         } else {
2162                                 /* bump login timestamp */
2163                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
2164                                         $_SESSION["uid"]);
2165
2166                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
2167                                         setcookie("ttrss_lang", $_SESSION["language"],
2168                                                 time() + SESSION_COOKIE_LIFETIME);
2169                                 }
2170
2171                                 // try to remove possible duplicates from feed counter cache
2172 //                              ccache_cleanup($link, $_SESSION["uid"]);
2173                         }
2174
2175                 } else {
2176                         return authenticate_user($link, "admin", null);
2177                 }
2178         }
2179
2180         function truncate_string($str, $max_len, $suffix = '&hellip;') {
2181                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
2182                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
2183                 } else {
2184                         return $str;
2185                 }
2186         }
2187
2188         function theme_image($link, $filename) {
2189                 if ($link) {
2190                         $theme_path = get_user_theme_path($link);
2191
2192                         if ($theme_path && is_file($theme_path.$filename)) {
2193                                 return $theme_path.$filename;
2194                         } else {
2195                                 return $filename;
2196                         }
2197                 } else {
2198                         return $filename;
2199                 }
2200         }
2201
2202         function get_user_theme($link) {
2203
2204                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2205                         $theme_name = get_pref($link, "_THEME_ID");
2206                         if (is_dir("themes/$theme_name")) {
2207                                 return $theme_name;
2208                         } else {
2209                                 return '';
2210                         }
2211                 } else {
2212                         return '';
2213                 }
2214
2215         }
2216
2217         function get_user_theme_path($link) {
2218                 $theme_path = '';
2219
2220                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2221                         $theme_name = get_pref($link, "_THEME_ID");
2222
2223                         if ($theme_name && is_dir("themes/$theme_name")) {
2224                                 $theme_path = "themes/$theme_name/";
2225                         } else {
2226                                 $theme_name = '';
2227                         }
2228                 } else {
2229                         $theme_path = '';
2230                 }
2231
2232                 if ($theme_path) {
2233                         if (is_file("$theme_path/theme.ini")) {
2234                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
2235                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
2236                                         return $theme_path;
2237                                 }
2238                         }
2239                 }
2240                 return '';
2241         }
2242
2243         function get_user_theme_options($link) {
2244                 $t = get_user_theme_path($link);
2245
2246                 if ($t) {
2247                         if (is_file("$t/theme.ini")) {
2248                                 $ini = parse_ini_file("$t/theme.ini", true);
2249                                 if ($ini['theme']['version']) {
2250                                         return $ini['theme']['options'];
2251                                 }
2252                         }
2253                 }
2254                 return '';
2255         }
2256
2257         function print_theme_includes($link) {
2258
2259                 $t = get_user_theme_path($link);
2260                 $time = time();
2261
2262                 if ($t) {
2263                         print "<link rel=\"stylesheet\" type=\"text/css\"
2264                                 href=\"$t/theme.css?$time \">";
2265                         if (file_exists("$t/theme.js")) {
2266                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
2267                                         </script>";
2268                         }
2269                 }
2270         }
2271
2272         function get_all_themes() {
2273                 $themes = glob("themes/*");
2274
2275                 asort($themes);
2276
2277                 $rv = array();
2278
2279                 foreach ($themes as $t) {
2280                         if (is_file("$t/theme.ini")) {
2281                                 $ini = parse_ini_file("$t/theme.ini", true);
2282                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
2283                                                         !$ini['theme']['disabled']) {
2284                                         $entry = array();
2285                                         $entry["path"] = $t;
2286                                         $entry["base"] = basename($t);
2287                                         $entry["name"] = $ini['theme']['name'];
2288                                         $entry["version"] = $ini['theme']['version'];
2289                                         $entry["author"] = $ini['theme']['author'];
2290                                         $entry["options"] = $ini['theme']['options'];
2291                                         array_push($rv, $entry);
2292                                 }
2293                         }
2294                 }
2295
2296                 return $rv;
2297         }
2298
2299         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
2300
2301                 try {
2302                         $source_tz = new DateTimeZone($source_tz);
2303                 } catch (Exception $e) {
2304                         $source_tz = new DateTimeZone('UTC');
2305                 }
2306
2307                 try {
2308                         $dest_tz = new DateTimeZone($dest_tz);
2309                 } catch (Exception $e) {
2310                         $dest_tz = new DateTimeZone('UTC');
2311                 }
2312
2313                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
2314                 return $dt->format('U') + $dest_tz->getOffset($dt);
2315         }
2316
2317         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
2318                                         $no_smart_dt = false) {
2319
2320                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2321                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
2322
2323                 global $utc_tz;
2324                 global $tz_offset;
2325
2326                 # We store date in UTC internally
2327                 $dt = new DateTime($timestamp, $utc_tz);
2328
2329                 if ($tz_offset == -1) {
2330
2331                         $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
2332
2333                         try {
2334                                 $user_tz = new DateTimeZone($user_tz_string);
2335                         } catch (Exception $e) {
2336                                 $user_tz = $utc_tz;
2337                         }
2338
2339                         $tz_offset = $user_tz->getOffset($dt);
2340                 }
2341
2342                 $user_timestamp = $dt->format('U') + $tz_offset;
2343
2344                 if (!$no_smart_dt) {
2345                         return smart_date_time($link, $user_timestamp,
2346                                 $tz_offset, $owner_uid);
2347                 } else {
2348                         if ($long)
2349                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2350                         else
2351                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2352
2353                         return date($format, $user_timestamp);
2354                 }
2355         }
2356
2357         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
2358                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2359
2360                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
2361                         return date("G:i", $timestamp);
2362                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
2363                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2364                         return date($format, $timestamp);
2365                 } else {
2366                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2367                         return date($format, $timestamp);
2368                 }
2369         }
2370
2371         function smart_date($timestamp) {
2372                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
2373                         return "Today";
2374                 } else if (date("Y", $timestamp) == date("Y")) {
2375                         return date("D m", $timestamp);
2376                 } else {
2377                         return date("Y/m/d", $timestamp);
2378                 }
2379         }
2380
2381         function sql_bool_to_string($s) {
2382                 if ($s == "t" || $s == "1") {
2383                         return "true";
2384                 } else {
2385                         return "false";
2386                 }
2387         }
2388
2389         function sql_bool_to_bool($s) {
2390                 if ($s == "t" || $s == "1" || $s == "true") {
2391                         return true;
2392                 } else {
2393                         return false;
2394                 }
2395         }
2396
2397         function bool_to_sql_bool($s) {
2398                 if ($s) {
2399                         return "true";
2400                 } else {
2401                         return "false";
2402                 }
2403         }
2404
2405         function toggleEvenOdd($a) {
2406                 if ($a == "even")
2407                         return "odd";
2408                 else
2409                         return "even";
2410         }
2411
2412         // Session caching removed due to causing wrong redirects to upgrade
2413         // script when get_schema_version() is called on an obsolete session
2414         // created on a previous schema version.
2415         function get_schema_version($link, $nocache = false) {
2416                 global $schema_version;
2417
2418                 if (!$schema_version) {
2419                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
2420                         $version = db_fetch_result($result, 0, "schema_version");
2421                         $schema_version = $version;
2422                         return $version;
2423                 } else {
2424                         return $schema_version;
2425                 }
2426         }
2427
2428         function sanity_check($link) {
2429
2430                 global $ERRORS;
2431
2432                 $error_code = 0;
2433                 $schema_version = get_schema_version($link, true);
2434
2435                 if ($schema_version != SCHEMA_VERSION) {
2436                         $error_code = 5;
2437                 }
2438
2439                 if (DB_TYPE == "mysql") {
2440                         $result = db_query($link, "SELECT true", false);
2441                         if (db_num_rows($result) != 1) {
2442                                 $error_code = 10;
2443                         }
2444                 }
2445
2446                 if (db_escape_string("testTEST") != "testTEST") {
2447                         $error_code = 12;
2448                 }
2449
2450                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
2451         }
2452
2453         function file_is_locked($filename) {
2454                 if (function_exists('flock')) {
2455                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
2456                         if ($fp) {
2457                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2458                                         flock($fp, LOCK_UN);
2459                                         fclose($fp);
2460                                         return false;
2461                                 }
2462                                 fclose($fp);
2463                                 return true;
2464                         } else {
2465                                 return false;
2466                         }
2467                 }
2468                 return true; // consider the file always locked and skip the test
2469         }
2470
2471         function make_lockfile($filename) {
2472                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2473
2474                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2475                         if (function_exists('posix_getpid')) {
2476                                 fwrite($fp, posix_getpid() . "\n");
2477                         }
2478                         return $fp;
2479                 } else {
2480                         return false;
2481                 }
2482         }
2483
2484         function make_stampfile($filename) {
2485                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2486
2487                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2488                         fwrite($fp, time() . "\n");
2489                         flock($fp, LOCK_UN);
2490                         fclose($fp);
2491                         return true;
2492                 } else {
2493                         return false;
2494                 }
2495         }
2496
2497         function sql_random_function() {
2498                 if (DB_TYPE == "mysql") {
2499                         return "RAND()";
2500                 } else {
2501                         return "RANDOM()";
2502                 }
2503         }
2504
2505         function catchup_feed($link, $feed, $cat_view, $owner_uid = false) {
2506
2507                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2508
2509                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2510
2511                         if (is_numeric($feed)) {
2512                                 if ($cat_view) {
2513
2514                                         if ($feed >= 0) {
2515
2516                                                 if ($feed > 0) {
2517                                                         $cat_qpart = "cat_id = '$feed'";
2518                                                 } else {
2519                                                         $cat_qpart = "cat_id IS NULL";
2520                                                 }
2521
2522                                                 $tmp_result = db_query($link, "SELECT id
2523                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = $owner_uid");
2524
2525                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
2526
2527                                                         $tmp_feed = $tmp_line["id"];
2528
2529                                                         db_query($link, "UPDATE ttrss_user_entries
2530                                                                 SET unread = false,last_read = NOW()
2531                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = $owner_uid");
2532                                                 }
2533                                         } else if ($feed == -2) {
2534
2535                                                 db_query($link, "UPDATE ttrss_user_entries
2536                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
2537                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
2538                                                         AND unread = true AND owner_uid = $owner_uid");
2539                                         }
2540
2541                                 } else if ($feed > 0) {
2542
2543                                         db_query($link, "UPDATE ttrss_user_entries
2544                                                         SET unread = false,last_read = NOW()
2545                                                         WHERE feed_id = '$feed' AND owner_uid = $owner_uid");
2546
2547                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
2548
2549                                         if ($feed == -1) {
2550                                                 db_query($link, "UPDATE ttrss_user_entries
2551                                                         SET unread = false,last_read = NOW()
2552                                                         WHERE marked = true AND owner_uid = $owner_uid");
2553                                         }
2554
2555                                         if ($feed == -2) {
2556                                                 db_query($link, "UPDATE ttrss_user_entries
2557                                                         SET unread = false,last_read = NOW()
2558                                                         WHERE published = true AND owner_uid = $owner_uid");
2559                                         }
2560
2561                                         if ($feed == -3) {
2562
2563                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
2564
2565                                                 if (DB_TYPE == "pgsql") {
2566                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
2567                                                 } else {
2568                                                         $match_part = "updated > DATE_SUB(NOW(),
2569                                                                 INTERVAL $intl HOUR) ";
2570                                                 }
2571
2572                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
2573                                                         ttrss_user_entries WHERE $match_part AND
2574                                                         unread = true AND
2575                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2576                                                         owner_uid = $owner_uid");
2577
2578                                                 $affected_ids = array();
2579
2580                                                 while ($line = db_fetch_assoc($result)) {
2581                                                         array_push($affected_ids, $line["id"]);
2582                                                 }
2583
2584                                                 catchupArticlesById($link, $affected_ids, 0);
2585                                         }
2586
2587                                         if ($feed == -4) {
2588                                                 db_query($link, "UPDATE ttrss_user_entries
2589                                                         SET unread = false,last_read = NOW()
2590                                                         WHERE owner_uid = $owner_uid");
2591                                         }
2592
2593                                 } else if ($feed < -10) { // label
2594
2595                                         $label_id = -$feed - 11;
2596
2597                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
2598                                                 SET unread = false, last_read = NOW()
2599                                                         WHERE label_id = '$label_id' AND unread = true
2600                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
2601
2602                                 }
2603
2604                                 ccache_update($link, $feed, $owner_uid, $cat_view);
2605
2606                         } else { // tag
2607                                 db_query($link, "BEGIN");
2608
2609                                 $tag_name = db_escape_string($feed);
2610
2611                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
2612                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
2613
2614                                 while ($line = db_fetch_assoc($result)) {
2615                                         db_query($link, "UPDATE ttrss_user_entries SET
2616                                                 unread = false, last_read = NOW()
2617                                                 WHERE int_id = " . $line["post_int_id"]);
2618                                 }
2619                                 db_query($link, "COMMIT");
2620                         }
2621         }
2622
2623         function getAllCounters($link, $omode = "flc", $active_feed = false) {
2624
2625                 if (!$omode) $omode = "flc";
2626
2627                 $data = getGlobalCounters($link);
2628
2629                 $data = array_merge($data, getVirtCounters($link));
2630
2631                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
2632                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
2633                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
2634                 if (strchr($omode, "c")) $data = array_merge($data, getCategoryCounters($link));
2635
2636                 return $data;
2637         }
2638
2639         function getCategoryCounters($link) {
2640                 $ret_arr = array();
2641
2642                 /* Labels category */
2643
2644                 $cv = array("id" => -2, "kind" => "cat",
2645                         "counter" => getCategoryUnread($link, -2));
2646
2647                 array_push($ret_arr, $cv);
2648
2649                 $age_qpart = getMaxAgeSubquery();
2650
2651                 $result = db_query($link, "SELECT id AS cat_id, value AS unread
2652                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
2653                         WHERE ttrss_cat_counters_cache.feed_id = id AND
2654                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
2655
2656                 while ($line = db_fetch_assoc($result)) {
2657                         $line["cat_id"] = (int) $line["cat_id"];
2658
2659                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
2660                                 "counter" => $line["unread"]);
2661
2662                         array_push($ret_arr, $cv);
2663                 }
2664
2665                 /* Special case: NULL category doesn't actually exist in the DB */
2666
2667                 $cv = array("id" => 0, "kind" => "cat",
2668                         "counter" => ccache_find($link, 0, $_SESSION["uid"], true));
2669
2670                 array_push($ret_arr, $cv);
2671
2672                 return $ret_arr;
2673         }
2674
2675         function getCategoryUnread($link, $cat, $owner_uid = false) {
2676
2677                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2678
2679                 if ($cat >= 0) {
2680
2681                         if ($cat != 0) {
2682                                 $cat_query = "cat_id = '$cat'";
2683                         } else {
2684                                 $cat_query = "cat_id IS NULL";
2685                         }
2686
2687                         $age_qpart = getMaxAgeSubquery();
2688
2689                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
2690                                         AND owner_uid = " . $owner_uid);
2691
2692                         $cat_feeds = array();
2693                         while ($line = db_fetch_assoc($result)) {
2694                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
2695                         }
2696
2697                         if (count($cat_feeds) == 0) return 0;
2698
2699                         $match_part = implode(" OR ", $cat_feeds);
2700
2701                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
2702                                 FROM ttrss_user_entries,ttrss_entries
2703                                 WHERE   unread = true AND ($match_part) AND id = ref_id
2704                                 AND $age_qpart AND owner_uid = " . $owner_uid);
2705
2706                         $unread = 0;
2707
2708                         # this needs to be rewritten
2709                         while ($line = db_fetch_assoc($result)) {
2710                                 $unread += $line["unread"];
2711                         }
2712
2713                         return $unread;
2714                 } else if ($cat == -1) {
2715                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
2716                 } else if ($cat == -2) {
2717
2718                         $result = db_query($link, "
2719                                 SELECT COUNT(unread) AS unread FROM
2720                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2721                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2722                                         ttrss_labels2.owner_uid = '$owner_uid'
2723                                         AND unread = true AND feed_id = ttrss_feeds.id
2724                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
2725
2726                         $unread = db_fetch_result($result, 0, "unread");
2727
2728                         return $unread;
2729
2730                 }
2731         }
2732
2733         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
2734                 if (DB_TYPE == "pgsql") {
2735                         return "ttrss_entries.date_updated >
2736                                 NOW() - INTERVAL '$days days'";
2737                 } else {
2738                         return "ttrss_entries.date_updated >
2739                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
2740                 }
2741         }
2742
2743         function getFeedUnread($link, $feed, $is_cat = false) {
2744                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
2745         }
2746
2747         function getLabelUnread($link, $label_id, $owner_uid = false) {
2748                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2749
2750                 $result = db_query($link, "
2751                         SELECT COUNT(unread) AS unread FROM
2752                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2753                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2754                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
2755                                 AND unread = true AND feed_id = ttrss_feeds.id
2756                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
2757
2758                 if (db_num_rows($result) != 0) {
2759                         return db_fetch_result($result, 0, "unread");
2760                 } else {
2761                         return 0;
2762                 }
2763         }
2764
2765         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
2766                 $owner_uid = false) {
2767
2768                 $n_feed = (int) $feed;
2769
2770                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2771
2772                 if ($unread_only) {
2773                         $unread_qpart = "unread = true";
2774                 } else {
2775                         $unread_qpart = "true";
2776                 }
2777
2778                 $age_qpart = getMaxAgeSubquery();
2779
2780                 if ($is_cat) {
2781                         return getCategoryUnread($link, $n_feed, $owner_uid);
2782                 } if ($feed != "0" && $n_feed == 0) {
2783
2784                         $feed = db_escape_string($feed);
2785
2786                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
2787                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2788                                         AND ref_id = id AND $age_qpart
2789                                         AND $unread_qpart)) AS count FROM ttrss_tags
2790                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
2791                         return db_fetch_result($result, 0, "count");
2792
2793                 } else if ($n_feed == -1) {
2794                         $match_part = "marked = true";
2795                 } else if ($n_feed == -2) {
2796                         $match_part = "published = true";
2797                 } else if ($n_feed == -3) {
2798                         $match_part = "unread = true AND score >= 0";
2799
2800                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2801
2802                         if (DB_TYPE == "pgsql") {
2803                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2804                         } else {
2805                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2806                         }
2807                 } else if ($n_feed == -4) {
2808                         $match_part = "true";
2809                 } else if ($n_feed >= 0) {
2810
2811                         if ($n_feed != 0) {
2812                                 $match_part = "feed_id = '$n_feed'";
2813                         } else {
2814                                 $match_part = "feed_id IS NULL";
2815                         }
2816
2817                 } else if ($feed < -10) {
2818
2819                         $label_id = -$feed - 11;
2820
2821                         return getLabelUnread($link, $label_id, $owner_uid);
2822
2823                 }
2824
2825                 if ($match_part) {
2826
2827                         if ($n_feed != 0) {
2828                                 $from_qpart = "ttrss_user_entries,ttrss_feeds,ttrss_entries";
2829                                 $feeds_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2830                         } else {
2831                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
2832                                 $feeds_qpart = '';
2833                         }
2834
2835                         $query = "SELECT count(int_id) AS unread
2836                                 FROM $from_qpart WHERE
2837                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
2838                                 $age_qpart AND
2839                                 $feeds_qpart
2840                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
2841
2842                         $result = db_query($link, $query);
2843
2844                 } else {
2845
2846                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
2847                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
2848                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
2849                                 AND $unread_qpart AND $age_qpart AND
2850                                         ttrss_tags.owner_uid = " . $owner_uid);
2851                 }
2852
2853                 $unread = db_fetch_result($result, 0, "unread");
2854
2855                 return $unread;
2856         }
2857
2858         function getGlobalUnread($link, $user_id = false) {
2859
2860                 if (!$user_id) {
2861                         $user_id = $_SESSION["uid"];
2862                 }
2863
2864                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
2865                         WHERE owner_uid = '$user_id' AND feed_id > 0");
2866
2867                 $c_id = db_fetch_result($result, 0, "c_id");
2868
2869                 return $c_id;
2870         }
2871
2872         function getGlobalCounters($link, $global_unread = -1) {
2873                 $ret_arr = array();
2874
2875                 if ($global_unread == -1) {
2876                         $global_unread = getGlobalUnread($link);
2877                 }
2878
2879                 $cv = array("id" => "global-unread",
2880                         "counter" => $global_unread);
2881
2882                 array_push($ret_arr, $cv);
2883
2884                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2885                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2886
2887                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
2888
2889                 $cv = array("id" => "subscribed-feeds",
2890                         "counter" => $subscribed_feeds);
2891
2892                 array_push($ret_arr, $cv);
2893
2894                 return $ret_arr;
2895         }
2896
2897         function getSubscribedFeeds($link) {
2898                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2899                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2900
2901                 return db_fetch_result($result, 0, "fn");
2902         }
2903
2904         function getTagCounters($link) {
2905
2906                 $ret_arr = array();
2907
2908                 $age_qpart = getMaxAgeSubquery();
2909
2910                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
2911                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2912                                 AND ref_id = id AND $age_qpart
2913                                 AND unread = true)) AS count FROM ttrss_tags
2914                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
2915                                 ORDER BY count DESC LIMIT 55");
2916
2917                 $tags = array();
2918
2919                 while ($line = db_fetch_assoc($result)) {
2920                         $tags[$line["tag_name"]] += $line["count"];
2921                 }
2922
2923                 foreach (array_keys($tags) as $tag) {
2924                         $unread = $tags[$tag];
2925                         $tag = htmlspecialchars($tag);
2926
2927                         $cv = array("id" => $tag,
2928                                 "kind" => "tag",
2929                                 "counter" => $unread);
2930
2931                         array_push($ret_arr, $cv);
2932                 }
2933
2934                 return $ret_arr;
2935         }
2936
2937         function getVirtCounters($link) {
2938
2939                 $ret_arr = array();
2940
2941                 for ($i = 0; $i >= -4; $i--) {
2942
2943                         $count = getFeedUnread($link, $i);
2944
2945                         $cv = array("id" => $i,
2946                                 "counter" => $count);
2947
2948 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2949 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
2950
2951                         array_push($ret_arr, $cv);
2952                 }
2953
2954                 return $ret_arr;
2955         }
2956
2957         function getLabelCounters($link, $descriptions = false) {
2958
2959                 $ret_arr = array();
2960
2961                 $age_qpart = getMaxAgeSubquery();
2962
2963                 $owner_uid = $_SESSION["uid"];
2964
2965                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
2966                         WHERE owner_uid = '$owner_uid'");
2967
2968                 while ($line = db_fetch_assoc($result)) {
2969
2970                         $id = -$line["id"] - 11;
2971
2972                         $label_name = $line["caption"];
2973                         $count = getFeedUnread($link, $id);
2974
2975                         $cv = array("id" => $id,
2976                                 "counter" => $count);
2977
2978                         if ($descriptions)
2979                                 $cv["description"] = $label_name;
2980
2981 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2982 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2983
2984                         array_push($ret_arr, $cv);
2985                 }
2986
2987                 return $ret_arr;
2988         }
2989
2990         function getFeedCounters($link, $active_feed = false) {
2991
2992                 $ret_arr = array();
2993
2994                 $age_qpart = getMaxAgeSubquery();
2995
2996                 $query = "SELECT ttrss_feeds.id,
2997                                 ttrss_feeds.title,
2998                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
2999                                 last_error, value AS count
3000                         FROM ttrss_feeds, ttrss_counters_cache
3001                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
3002                                 AND ttrss_counters_cache.feed_id = id";
3003
3004                 $result = db_query($link, $query);
3005                 $fctrs_modified = false;
3006
3007                 while ($line = db_fetch_assoc($result)) {
3008
3009                         $id = $line["id"];
3010                         $count = $line["count"];
3011                         $last_error = htmlspecialchars($line["last_error"]);
3012
3013                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
3014
3015                         $has_img = feed_has_icon($id);
3016
3017                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
3018                                 $last_updated = '';
3019
3020                         $cv = array("id" => $id,
3021                                 "updated" => $last_updated,
3022                                 "counter" => $count,
3023                                 "has_img" => (int) $has_img);
3024
3025                         if ($last_error)
3026                                 $cv["error"] = $last_error;
3027
3028 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
3029 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
3030
3031                         if ($active_feed && $id == $active_feed)
3032                                 $cv["title"] = truncate_string($line["title"], 30);
3033
3034                         array_push($ret_arr, $cv);
3035
3036                 }
3037
3038                 return $ret_arr;
3039         }
3040
3041         function get_pgsql_version($link) {
3042                 $result = db_query($link, "SELECT version() AS version");
3043                 $version = explode(" ", db_fetch_result($result, 0, "version"));
3044                 return $version[1];
3045         }
3046
3047         /**
3048          * Subscribes the user to the given feed
3049          *
3050          * @param resource $link       Database connection
3051          * @param string   $url        Feed URL to subscribe to
3052          * @param integer  $cat_id     Category ID the feed shall be added to
3053          * @param string   $auth_login (optional) Feed username
3054          * @param string   $auth_pass  (optional) Feed password
3055          *
3056          * @return integer Status code:
3057          *                 0 - OK, Feed already exists
3058          *                 1 - OK, Feed added
3059          *                 2 - Invalid URL
3060          *                 3 - URL content is HTML, no feeds available
3061          *                 4 - URL content is HTML which contains multiple feeds.
3062          *                     Here you should call extractfeedurls in rpc-backend
3063          *                     to get all possible feeds.
3064          *                 5 - Couldn't download the URL content.
3065          */
3066         function subscribe_to_feed($link, $url, $cat_id = 0,
3067                         $auth_login = '', $auth_pass = '') {
3068
3069                 $url = fix_url($url);
3070
3071                 if (!$url || !validate_feed_url($url)) return 2;
3072
3073                 $update_method = 0;
3074
3075                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
3076                         WHERE id = ".$_SESSION['uid']);
3077
3078                 $has_oauth = db_fetch_result($result, 0, 'twitter_oauth');
3079
3080                 if (!$has_oauth || strpos($url, '://api.twitter.com') === false) {
3081                         if (!fetch_file_contents($url, false, $auth_login, $auth_pass)) return 5;
3082
3083                         if (url_is_html($url, $auth_login, $auth_pass)) {
3084                                 $feedUrls = get_feeds_from_html($url, $auth_login, $auth_pass);
3085                                 if (count($feedUrls) == 0) {
3086                                         return 3;
3087                                 } else if (count($feedUrls) > 1) {
3088                                         return 4;
3089                                 }
3090                                 //use feed url as new URL
3091                                 $url = key($feedUrls);
3092                         }
3093
3094                         } else {
3095                                 if (!fetch_twitter_rss($link, $url, $_SESSION['uid']))
3096                                         return 5;
3097
3098                                 $update_method = 3;
3099                         }
3100                 if ($cat_id == "0" || !$cat_id) {
3101                         $cat_qpart = "NULL";
3102                 } else {
3103                         $cat_qpart = "'$cat_id'";
3104                 }
3105
3106                 $result = db_query($link,
3107                         "SELECT id FROM ttrss_feeds
3108                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
3109
3110                 if (db_num_rows($result) == 0) {
3111                         $result = db_query($link,
3112                                 "INSERT INTO ttrss_feeds
3113                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
3114                                 VALUES ('".$_SESSION["uid"]."', '$url',
3115                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
3116
3117                         $result = db_query($link,
3118                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
3119                                         AND owner_uid = " . $_SESSION["uid"]);
3120
3121                         $feed_id = db_fetch_result($result, 0, "id");
3122
3123                         if ($feed_id) {
3124                                 update_rss_feed($link, $feed_id, true);
3125                         }
3126
3127                         return 1;
3128                 } else {
3129                         return 0;
3130                 }
3131         }
3132
3133         function print_feed_select($link, $id, $default_id = "",
3134                 $attributes = "", $include_all_feeds = true) {
3135
3136                 print "<select id=\"$id\" name=\"$id\" $attributes>";
3137                 if ($include_all_feeds) {
3138                         print "<option value=\"0\">".__('All feeds')."</option>";
3139                 }
3140
3141                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
3142                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3143
3144                 if (db_num_rows($result) > 0 && $include_all_feeds) {
3145                         print "<option disabled>--------</option>";
3146                 }
3147
3148                 while ($line = db_fetch_assoc($result)) {
3149                         if ($line["id"] == $default_id) {
3150                                 $is_selected = "selected=\"1\"";
3151                         } else {
3152                                 $is_selected = "";
3153                         }
3154
3155                         $title = truncate_string(htmlspecialchars($line["title"]), 40);
3156
3157                         printf("<option $is_selected value='%d'>%s</option>",
3158                                 $line["id"], $title);
3159                 }
3160
3161                 print "</select>";
3162         }
3163
3164         function print_feed_cat_select($link, $id, $default_id = "",
3165                 $attributes = "", $include_all_cats = true) {
3166
3167                 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
3168
3169                 if ($include_all_cats) {
3170                         print "<option value=\"0\">".__('Uncategorized')."</option>";
3171                 }
3172
3173                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
3174                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3175
3176                 if (db_num_rows($result) > 0 && $include_all_cats) {
3177                         print "<option disabled=\"1\">--------</option>";
3178                 }
3179
3180                 while ($line = db_fetch_assoc($result)) {
3181                         if ($line["id"] == $default_id) {
3182                                 $is_selected = "selected=\"1\"";
3183                         } else {
3184                                 $is_selected = "";
3185                         }
3186
3187                         if ($line["title"])
3188                                 printf("<option $is_selected value='%d'>%s</option>",
3189                                         $line["id"], htmlspecialchars($line["title"]));
3190                 }
3191
3192 #               print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
3193
3194                 print "</select>";
3195         }
3196
3197         function checkbox_to_sql_bool($val) {
3198                 return ($val == "on") ? "true" : "false";
3199         }
3200
3201         function getFeedCatTitle($link, $id) {
3202                 if ($id == -1) {
3203                         return __("Special");
3204                 } else if ($id < -10) {
3205                         return __("Labels");
3206                 } else if ($id > 0) {
3207                         $result = db_query($link, "SELECT ttrss_feed_categories.title
3208                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
3209                                         cat_id = ttrss_feed_categories.id");
3210                         if (db_num_rows($result) == 1) {
3211                                 return db_fetch_result($result, 0, "title");
3212                         } else {
3213                                 return __("Uncategorized");
3214                         }
3215                 } else {
3216                         return "getFeedCatTitle($id) failed";
3217                 }
3218
3219         }
3220
3221         function getFeedIcon($id) {
3222                 switch ($id) {
3223                 case 0:
3224                         return "images/archive.png";
3225                         break;
3226                 case -1:
3227                         return "images/mark_set.png";
3228                         break;
3229                 case -2:
3230                         return "images/pub_set.png";
3231                         break;
3232                 case -3:
3233                         return "images/fresh.png";
3234                         break;
3235                 case -4:
3236                         return "images/tag.png";
3237                         break;
3238                 default:
3239                         if ($id < -10) {
3240                                 return "images/label.png";
3241                         } else {
3242                                 if (file_exists(ICONS_DIR . "/$id.ico"))
3243                                         return ICONS_URL . "/$id.ico";
3244                         }
3245                         break;
3246                 }
3247         }
3248
3249         function getFeedTitle($link, $id) {
3250                 if ($id == -1) {
3251                         return __("Starred articles");
3252                 } else if ($id == -2) {
3253                         return __("Published articles");
3254                 } else if ($id == -3) {
3255                         return __("Fresh articles");
3256                 } else if ($id == -4) {
3257                         return __("All articles");
3258                 } else if ($id === 0 || $id === "0") {
3259                         return __("Archived articles");
3260                 } else if ($id < -10) {
3261                         $label_id = -$id - 11;
3262                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
3263                         if (db_num_rows($result) == 1) {
3264                                 return db_fetch_result($result, 0, "caption");
3265                         } else {
3266                                 return "Unknown label ($label_id)";
3267                         }
3268
3269                 } else if (is_numeric($id) && $id > 0) {
3270                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
3271                         if (db_num_rows($result) == 1) {
3272                                 return db_fetch_result($result, 0, "title");
3273                         } else {
3274                                 return "Unknown feed ($id)";
3275                         }
3276                 } else {
3277                         return $id;
3278                 }
3279         }
3280
3281         function get_session_cookie_name() {
3282                 return ((!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME);
3283         }
3284
3285         function make_init_params($link) {
3286                 $params = array();
3287
3288                 $params["theme"] = get_user_theme($link);
3289                 $params["theme_options"] = get_user_theme_options($link);
3290
3291                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
3292                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
3293                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
3294                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
3295
3296                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
3297                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
3298                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
3299                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
3300
3301                                  $params[strtolower($param)] = (int) get_pref($link, $param);
3302                  }
3303
3304                 $params["icons_url"] = ICONS_URL;
3305                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
3306                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
3307                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
3308                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
3309                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
3310
3311                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3312                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3313
3314                 $max_feed_id = db_fetch_result($result, 0, "mid");
3315                 $num_feeds = db_fetch_result($result, 0, "nf");
3316
3317                 $params["max_feed_id"] = (int) $max_feed_id;
3318                 $params["num_feeds"] = (int) $num_feeds;
3319
3320                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
3321
3322                 return $params;
3323         }
3324
3325         function print_runtime_info($link) {
3326                 print "<runtime-info><![CDATA[";
3327                 print json_encode(make_runtime_info($link));
3328                 print "]]></runtime-info>";
3329         }
3330
3331         function make_runtime_info($link) {
3332                 $data = array();
3333
3334                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3335                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3336
3337                 $max_feed_id = db_fetch_result($result, 0, "mid");
3338                 $num_feeds = db_fetch_result($result, 0, "nf");
3339
3340                 $data["max_feed_id"] = (int) $max_feed_id;
3341                 $data["num_feeds"] = (int) $num_feeds;
3342
3343                 $data['last_article_id'] = getLastArticleId($link);
3344                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
3345
3346                 if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
3347
3348                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
3349
3350                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
3351
3352                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
3353
3354                                 if ($stamp) {
3355                                         $stamp_delta = time() - $stamp;
3356
3357                                         if ($stamp_delta > 1800) {
3358                                                 $stamp_check = 0;
3359                                         } else {
3360                                                 $stamp_check = 1;
3361                                                 $_SESSION["daemon_stamp_check"] = time();
3362                                         }
3363
3364                                         $data['daemon_stamp_ok'] = $stamp_check;
3365
3366                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
3367
3368                                         $data['daemon_stamp'] = $stamp_fmt;
3369                                 }
3370                         }
3371                 }
3372
3373                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
3374                                 $new_version_details = @check_for_update($link);
3375
3376                                 $data['new_version_available'] = (int) ($new_version_details != false);
3377
3378                                 $_SESSION["last_version_check"] = time();
3379                 }
3380
3381                 return $data;
3382         }
3383
3384         function search_to_sql($link, $search, $match_on) {
3385
3386                 $search_query_part = "";
3387
3388                 $keywords = explode(" ", $search);
3389                 $query_keywords = array();
3390
3391                 foreach ($keywords as $k) {
3392                         if (strpos($k, "-") === 0) {
3393                                 $k = substr($k, 1);
3394                                 $not = "NOT";
3395                         } else {
3396                                 $not = "";
3397                         }
3398
3399                         $commandpair = explode(":", mb_strtolower($k), 2);
3400
3401                         if ($commandpair[0] == "note" && $commandpair[1]) {
3402
3403                                 if ($commandpair[1] == "true")
3404                                         array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
3405                                 else
3406                                         array_push($query_keywords, "($not (note IS NULL OR note = ''))");
3407
3408                         } else if ($commandpair[0] == "star" && $commandpair[1]) {
3409
3410                                 if ($commandpair[1] == "true")
3411                                         array_push($query_keywords, "($not (marked = true))");
3412                                 else
3413                                         array_push($query_keywords, "($not (marked = false))");
3414
3415                         } else if ($commandpair[0] == "pub" && $commandpair[1]) {
3416
3417                                 if ($commandpair[1] == "true")
3418                                         array_push($query_keywords, "($not (published = true))");
3419                                 else
3420                                         array_push($query_keywords, "($not (published = false))");
3421
3422                         } else if (strpos($k, "@") === 0) {
3423
3424                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
3425                                 $orig_ts = strtotime(substr($k, 1));
3426                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
3427
3428                                 //$k = date("Y-m-d", strtotime(substr($k, 1)));
3429
3430                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
3431                         } else if ($match_on == "both") {
3432                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
3433                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3434                         } else if ($match_on == "title") {
3435                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
3436                         } else if ($match_on == "content") {
3437                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3438                         }
3439                 }
3440
3441                 $search_query_part = implode("AND", $query_keywords);
3442
3443                 return $search_query_part;
3444         }
3445
3446
3447         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0) {
3448
3449                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3450
3451                 $ext_tables_part = "";
3452
3453                         if ($search) {
3454
3455                                 if (SPHINX_ENABLED) {
3456                                         $ids = join(",", @sphinx_search($search, 0, 500));
3457
3458                                         if ($ids)
3459                                                 $search_query_part = "ref_id IN ($ids) AND ";
3460                                         else
3461                                                 $search_query_part = "ref_id = -1 AND ";
3462
3463                                 } else {
3464                                         $search_query_part = search_to_sql($link, $search, $match_on);
3465                                         $search_query_part .= " AND ";
3466                                 }
3467
3468                         } else {
3469                                 $search_query_part = "";
3470                         }
3471
3472                         if ($filter) {
3473                                 $filter_query_part = filter_to_sql($filter);
3474                         } else {
3475                                 $filter_query_part = "";
3476                         }
3477
3478                         if ($since_id) {
3479                                 $since_id_part = "ttrss_entries.id > $since_id AND ";
3480                         } else {
3481                                 $since_id_part = "";
3482                         }
3483
3484                         $view_query_part = "";
3485
3486                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
3487                                 if ($search) {
3488                                         $view_query_part = " ";
3489                                 } else if ($feed != -1) {
3490                                         $unread = getFeedUnread($link, $feed, $cat_view);
3491                                         if ($unread > 0) {
3492                                                 $view_query_part = " unread = true AND ";
3493                                         }
3494                                 }
3495                         }
3496
3497                         if ($view_mode == "marked") {
3498                                 $view_query_part = " marked = true AND ";
3499                         }
3500
3501                         if ($view_mode == "published") {
3502                                 $view_query_part = " published = true AND ";
3503                         }
3504
3505                         if ($view_mode == "unread") {
3506                                 $view_query_part = " unread = true AND ";
3507                         }
3508
3509                         if ($view_mode == "updated") {
3510                                 $view_query_part = " (last_read is null and unread = false) AND ";
3511                         }
3512
3513                         if ($limit > 0) {
3514                                 $limit_query_part = "LIMIT " . $limit;
3515                         }
3516
3517                         $vfeed_query_part = "";
3518
3519                         // override query strategy and enable feed display when searching globally
3520                         if ($search && $search_mode == "all_feeds") {
3521                                 $query_strategy_part = "ttrss_entries.id > 0";
3522                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3523                         /* tags */
3524                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
3525                                 $query_strategy_part = "ttrss_entries.id > 0";
3526                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
3527                                         id = feed_id) as feed_title,";
3528                         } else if ($feed > 0 && $search && $search_mode == "this_cat") {
3529
3530                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3531
3532                                 $tmp_result = false;
3533
3534                                 if ($cat_view) {
3535                                         $tmp_result = db_query($link, "SELECT id
3536                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
3537                                 } else {
3538                                         $tmp_result = db_query($link, "SELECT id
3539                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
3540                                                         WHERE id = '$feed') AND id != '$feed'");
3541                                 }
3542
3543                                 $cat_siblings = array();
3544
3545                                 if (db_num_rows($tmp_result) > 0) {
3546                                         while ($p = db_fetch_assoc($tmp_result)) {
3547                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
3548                                         }
3549
3550                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
3551                                                 $feed, implode(" OR ", $cat_siblings));
3552
3553                                 } else {
3554                                         $query_strategy_part = "ttrss_entries.id > 0";
3555                                 }
3556
3557                         } else if ($feed > 0) {
3558
3559                                 if ($cat_view) {
3560
3561                                         if ($feed > 0) {
3562                                                 $query_strategy_part = "cat_id = '$feed'";
3563                                         } else {
3564                                                 $query_strategy_part = "cat_id IS NULL";
3565                                         }
3566
3567                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3568
3569                                 } else {
3570                                         $query_strategy_part = "feed_id = '$feed'";
3571                                 }
3572                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
3573                                 $query_strategy_part = "feed_id IS NULL";
3574                         } else if ($feed == 0 && $cat_view) { // uncategorized
3575                                 $query_strategy_part = "cat_id IS NULL";
3576                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3577                         } else if ($feed == -1) { // starred virtual feed
3578                                 $query_strategy_part = "marked = true";
3579                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3580                         } else if ($feed == -2) { // published virtual feed OR labels category
3581
3582                                 if (!$cat_view) {
3583                                         $query_strategy_part = "published = true";
3584                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3585                                 } else {
3586                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3587
3588                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3589
3590                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
3591                                                 ttrss_user_labels2.article_id = ref_id";
3592
3593                                 }
3594
3595                         } else if ($feed == -3) { // fresh virtual feed
3596                                 $query_strategy_part = "unread = true AND score >= 0";
3597
3598                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
3599
3600                                 if (DB_TYPE == "pgsql") {
3601                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
3602                                 } else {
3603                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
3604                                 }
3605
3606                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3607                         } else if ($feed == -4) { // all articles virtual feed
3608                                 $query_strategy_part = "true";
3609                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3610                         } else if ($feed <= -10) { // labels
3611                                 $label_id = -$feed - 11;
3612
3613                                 $query_strategy_part = "label_id = '$label_id' AND
3614                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
3615                                         ttrss_user_labels2.article_id = ref_id";
3616
3617                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3618                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3619
3620                         } else {
3621                                 $query_strategy_part = "id > 0"; // dumb
3622                         }
3623
3624                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3625                                 $date_sort_field = "updated";
3626                         } else {
3627                                 $date_sort_field = "date_entered";
3628                         }
3629
3630                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
3631                                 $order_by = "$date_sort_field";
3632                         } else {
3633                                 $order_by = "$date_sort_field DESC";
3634                         }
3635
3636                         if ($view_mode != "noscores") {
3637                                 $order_by = "score DESC, $order_by";
3638                         }
3639
3640                         if ($override_order) {
3641                                 $order_by = $override_order;
3642                         }
3643
3644                         $feed_title = "";
3645
3646                         if ($search) {
3647                                 $feed_title = "Search results";
3648                         } else {
3649                                 if ($cat_view) {
3650                                         $feed_title = getCategoryTitle($link, $feed);
3651                                 } else {
3652                                         if (is_numeric($feed) && $feed > 0) {
3653                                                 $result = db_query($link, "SELECT title,site_url,last_error
3654                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
3655
3656                                                 $feed_title = db_fetch_result($result, 0, "title");
3657                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
3658                                                 $last_error = db_fetch_result($result, 0, "last_error");
3659                                         } else {
3660                                                 $feed_title = getFeedTitle($link, $feed);
3661                                         }
3662                                 }
3663                         }
3664
3665                         $content_query_part = "content as content_preview,";
3666
3667                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
3668
3669                                 if ($feed >= 0) {
3670                                         $feed_kind = "Feeds";
3671                                 } else {
3672                                         $feed_kind = "Labels";
3673                                 }
3674
3675                                 if ($limit_query_part) {
3676                                         $offset_query_part = "OFFSET $offset";
3677                                 }
3678
3679                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
3680                                         if (!$override_order) {
3681                                                 $order_by = "ttrss_feeds.title, $order_by";
3682                                         }
3683                                 }
3684
3685                                 if ($feed != "0") {
3686                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
3687                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
3688
3689                                 } else {
3690                                         $from_qpart = "ttrss_entries,ttrss_user_entries$ext_tables_part
3691                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
3692                                 }
3693
3694                                 $query = "SELECT DISTINCT
3695                                                 date_entered,
3696                                                 guid,
3697                                                 ttrss_entries.id,ttrss_entries.title,
3698                                                 updated,
3699                                                 label_cache,
3700                                                 tag_cache,
3701                                                 always_display_enclosures,
3702                                                 note,
3703                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
3704                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3705                                                 $vfeed_query_part
3706                                                 $content_query_part
3707                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3708                                                 author,score
3709                                         FROM
3710                                                 $from_qpart
3711                                         WHERE
3712                                         $feed_check_qpart
3713                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
3714                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
3715                                         $search_query_part
3716                                         $filter_query_part
3717                                         $view_query_part
3718                                         $since_id_part
3719                                         $query_strategy_part ORDER BY $order_by
3720                                         $limit_query_part $offset_query_part";
3721
3722                                 if ($_REQUEST["debug"]) print $query;
3723
3724                                 $result = db_query($link, $query);
3725
3726                         } else {
3727                                 // browsing by tag
3728
3729                                 $select_qpart = "SELECT DISTINCT " .
3730                                                                 "date_entered," .
3731                                                                 "guid," .
3732                                                                 "note," .
3733                                                                 "ttrss_entries.id as id," .
3734                                                                 "title," .
3735                                                                 "updated," .
3736                                                                 "unread," .
3737                                                                 "feed_id," .
3738                                                                 "orig_feed_id," .
3739                                                                 "marked," .
3740                                                                 "tag_cache," .
3741                                                                 "label_cache," .
3742                                                                 "link," .
3743                                                                 "last_read," .
3744                                                                 SUBSTRING_FOR_DATE . "(last_read,1,19) as last_read_noms," .
3745                                                                 $since_id_part .
3746                                                                 $vfeed_query_part .
3747                                                                 $content_query_part .
3748                                                                 SUBSTRING_FOR_DATE . "(updated,1,19) as updated_noms," .
3749                                                                 "score ";
3750
3751                                 $feed_kind = "Tags";
3752                                 $all_tags = explode(",", $feed);
3753                                 if ($search_mode == 'any') {
3754                                         $tag_sql = "tag_name in (" . implode(", ", array_map("db_quote", $all_tags)) . ")";
3755                                         $from_qpart = " FROM ttrss_entries,ttrss_user_entries,ttrss_tags ";
3756                                         $where_qpart = " WHERE " .
3757                                                                    "ref_id = ttrss_entries.id AND " .
3758                                                                    "ttrss_user_entries.owner_uid = $owner_uid AND " .
3759                                                                    "post_int_id = int_id AND $tag_sql AND " .
3760                                                                    $view_query_part .
3761                                                                    $search_query_part .
3762                                                                    $query_strategy_part . " ORDER BY $order_by " .
3763                                                                    $limit_query_part;
3764
3765                                 } else {
3766                                         $i = 1;
3767                                         $sub_selects = array();
3768                                         $sub_ands = array();
3769                                         foreach ($all_tags as $term) {
3770                                                 array_push($sub_selects, "(SELECT post_int_id from ttrss_tags WHERE tag_name = " . db_quote($term) . " AND owner_uid = $owner_uid) as A$i");
3771                                                 $i++;
3772                                         }
3773                                         if ($i > 2) {
3774                                                 $x = 1;
3775                                                 $y = 2;
3776                                                 do {
3777                                                         array_push($sub_ands, "A$x.post_int_id = A$y.post_int_id");
3778                                                         $x++;
3779                                                         $y++;
3780                                                 } while ($y < $i);
3781                                         }
3782                                         array_push($sub_ands, "A1.post_int_id = ttrss_user_entries.int_id and ttrss_user_entries.owner_uid = $owner_uid");
3783                                         array_push($sub_ands, "ttrss_user_entries.ref_id = ttrss_entries.id");
3784                                         $from_qpart = " FROM " . implode(", ", $sub_selects) . ", ttrss_user_entries, ttrss_entries";
3785                                         $where_qpart = " WHERE " . implode(" AND ", $sub_ands);
3786                                 }
3787                                 //                              error_log("TAG SQL: " . $tag_sql);
3788                                 // $tag_sql = "tag_name = '$feed'";   DEFAULT way
3789
3790                                 //                              error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
3791                                 $result = db_query($link, $select_qpart . $from_qpart . $where_qpart);
3792                         }
3793
3794                         return array($result, $feed_title, $feed_site_url, $last_error);
3795
3796         }
3797
3798         function generate_syndicated_feed($link, $owner_uid, $feed, $is_cat,
3799                 $limit, $search, $search_mode, $match_on, $view_mode = false) {
3800
3801                 require_once "lib/MiniTemplator.class.php";
3802
3803                 $note_style =   "background-color : #fff7d5;
3804                         border-width : 1px; ".
3805                         "padding : 5px; border-style : dashed; border-color : #e7d796;".
3806                         "margin-bottom : 1em; color : #9a8c59;";
3807
3808                 if (!$limit) $limit = 30;
3809
3810                 if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3811                         $date_sort_field = "updated";
3812                 } else {
3813                         $date_sort_field = "date_entered";
3814                 }
3815
3816                 $qfh_ret = queryFeedHeadlines($link, $feed,
3817                         $limit, $view_mode, $is_cat, $search, $search_mode,
3818                         $match_on, "$date_sort_field DESC", 0, $owner_uid);
3819
3820                 $result = $qfh_ret[0];
3821                 $feed_title = htmlspecialchars($qfh_ret[1]);
3822                 $feed_site_url = $qfh_ret[2];
3823                 $last_error = $qfh_ret[3];
3824
3825                 $feed_self_url = get_self_url_prefix() .
3826                         "/backend.php?op=rss&id=-2&key=" .
3827                         get_feed_access_key($link, -2, false);
3828
3829                 if (!$feed_site_url) $feed_site_url = get_self_url_prefix();
3830
3831                 $tpl = new MiniTemplator;
3832
3833                 $tpl->readTemplateFromFile("templates/generated_feed.txt");
3834
3835                 $tpl->setVariable('FEED_TITLE', $feed_title);
3836                 $tpl->setVariable('VERSION', VERSION);
3837                 $tpl->setVariable('FEED_URL', htmlspecialchars($feed_self_url));
3838
3839                 if (PUBSUBHUBBUB_HUB && $feed == -2) {
3840                         $tpl->setVariable('HUB_URL', htmlspecialchars(PUBSUBHUBBUB_HUB));
3841                         $tpl->addBlock('feed_hub');
3842                 }
3843
3844                 $tpl->setVariable('SELF_URL', htmlspecialchars(get_self_url_prefix()));
3845
3846                 while ($line = db_fetch_assoc($result)) {
3847                         $tpl->setVariable('ARTICLE_ID', htmlspecialchars($line['link']));
3848                         $tpl->setVariable('ARTICLE_LINK', htmlspecialchars($line['link']));
3849                         $tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($line['title']));
3850                         $tpl->setVariable('ARTICLE_EXCERPT',
3851                                 truncate_string(strip_tags($line["content_preview"]), 100, '...'));
3852
3853                         $content = sanitize_rss($link, $line["content_preview"], false, $owner_uid);
3854
3855                         if ($line['note']) {
3856                                 $content = "<div style=\"$note_style\">Article note: " . $line['note'] . "</div>" .
3857                                         $content;
3858                         }
3859
3860                         $tpl->setVariable('ARTICLE_CONTENT', $content);
3861
3862                         $tpl->setVariable('ARTICLE_UPDATED', date('c', strtotime($line["updated"])));
3863                         $tpl->setVariable('ARTICLE_AUTHOR', htmlspecialchars($line['author']));
3864
3865                         $tags = get_article_tags($link, $line["id"], $owner_uid);
3866
3867                         foreach ($tags as $tag) {
3868                                 $tpl->setVariable('ARTICLE_CATEGORY', htmlspecialchars($tag));
3869                                 $tpl->addBlock('category');
3870                         }
3871
3872                         $enclosures = get_article_enclosures($link, $line["id"]);
3873
3874                         foreach ($enclosures as $e) {
3875                                 $type = htmlspecialchars($e['content_type']);
3876                                 $url = htmlspecialchars($e['content_url']);
3877                                 $length = $e['duration'];
3878
3879                                 $tpl->setVariable('ARTICLE_ENCLOSURE_URL', $url);
3880                                 $tpl->setVariable('ARTICLE_ENCLOSURE_TYPE', $type);
3881                                 $tpl->setVariable('ARTICLE_ENCLOSURE_LENGTH', $length);
3882
3883                                 $tpl->addBlock('enclosure');
3884                         }
3885
3886                         $tpl->addBlock('entry');
3887                 }
3888
3889                 $tmp = "";
3890
3891                 $tpl->addBlock('feed');
3892                 $tpl->generateOutputToString($tmp);
3893
3894                 print $tmp;
3895         }
3896
3897         function getCategoryTitle($link, $cat_id) {
3898
3899                 if ($cat_id == -1) {
3900                         return __("Special");
3901                 } else if ($cat_id == -2) {
3902                         return __("Labels");
3903                 } else {
3904
3905                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
3906                                 id = '$cat_id'");
3907
3908                         if (db_num_rows($result) == 1) {
3909                                 return db_fetch_result($result, 0, "title");
3910                         } else {
3911                                 return "Uncategorized";
3912                         }
3913                 }
3914         }
3915
3916         function sanitize_rss($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
3917                 global $purifier;
3918
3919                 if (!$owner) $owner = $_SESSION["uid"];
3920
3921                 $res = trim($str); if (!$res) return '';
3922
3923 //              if (get_pref($link, "STRIP_UNSAFE_TAGS", $owner) || $force_strip_tags) {
3924                 $res = $purifier->purify($res);
3925 //              }
3926
3927                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
3928                         $res = preg_replace('/<img[^>]+>/is', '', $res);
3929                 }
3930
3931                 if (strpos($res, "href=") === false)
3932                         $res = rewrite_urls($res);
3933
3934                 $charset_hack = '<head>
3935                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
3936                 </head>';
3937
3938                 $res = trim($res); if (!$res) return '';
3939
3940                 libxml_use_internal_errors(true);
3941
3942                 $doc = new DOMDocument();
3943                 $doc->loadHTML($charset_hack . $res);
3944                 $xpath = new DOMXPath($doc);
3945
3946                 $entries = $xpath->query('(//a[@href]|//img[@src])');
3947                 $br_inserted = 0;
3948
3949                 foreach ($entries as $entry) {
3950
3951                         if ($site_url) {
3952
3953                                 if ($entry->hasAttribute('href'))
3954                                         $entry->setAttribute('href',
3955                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
3956
3957                                 if ($entry->hasAttribute('src'))
3958                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
3959                                                 $entry->setAttribute('src',
3960                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
3961                         }
3962
3963                         if (strtolower($entry->nodeName) == "a") {
3964                                 $entry->setAttribute("target", "_blank");
3965                         }
3966
3967                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
3968                                 $br = $doc->createElement("br");
3969
3970                                 if ($entry->parentNode->nextSibling) {
3971                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
3972                                         $br_inserted = 1;
3973                                 }
3974
3975                         }
3976                 }
3977
3978                 $node = $doc->getElementsByTagName('body')->item(0);
3979
3980                 return $doc->saveXML($node);
3981         }
3982
3983         /**
3984          * Send by mail a digest of last articles.
3985          *
3986          * @param mixed $link The database connection.
3987          * @param integer $limit The maximum number of articles by digest.
3988          * @return boolean Return false if digests are not enabled.
3989          */
3990         function send_headlines_digests($link, $limit = 100) {
3991
3992                 if (!DIGEST_ENABLE) return false;
3993
3994                 $user_limit = DIGEST_EMAIL_LIMIT;
3995                 $days = 1;
3996
3997                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
3998
3999                 if (DB_TYPE == "pgsql") {
4000                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
4001                 } else if (DB_TYPE == "mysql") {
4002                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
4003                 }
4004
4005                 $result = db_query($link, "SELECT id,email FROM ttrss_users
4006                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
4007
4008                 while ($line = db_fetch_assoc($result)) {
4009
4010                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
4011                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
4012
4013                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
4014
4015                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
4016                                 $digest = $tuple[0];
4017                                 $headlines_count = $tuple[1];
4018                                 $affected_ids = $tuple[2];
4019                                 $digest_text = $tuple[3];
4020
4021                                 if ($headlines_count > 0) {
4022
4023                                         $mail = new PHPMailer();
4024
4025                                         $mail->PluginDir = "lib/phpmailer/";
4026                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
4027
4028                                         $mail->CharSet = "UTF-8";
4029
4030                                         $mail->From = DIGEST_FROM_ADDRESS;
4031                                         $mail->FromName = DIGEST_FROM_NAME;
4032                                         $mail->AddAddress($line["email"], $line["login"]);
4033
4034                                         if (DIGEST_SMTP_HOST) {
4035                                                 $mail->Host = DIGEST_SMTP_HOST;
4036                                                 $mail->Mailer = "smtp";
4037                                                 $mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
4038                                                 $mail->Username = DIGEST_SMTP_LOGIN;
4039                                                 $mail->Password = DIGEST_SMTP_PASSWORD;
4040                                         }
4041
4042                                         $mail->IsHTML(true);
4043                                         $mail->Subject = DIGEST_SUBJECT;
4044                                         $mail->Body = $digest;
4045                                         $mail->AltBody = $digest_text;
4046
4047                                         $rc = $mail->Send();
4048
4049                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
4050
4051                                         print "RC=$rc\n";
4052
4053                                         if ($rc && $do_catchup) {
4054                                                 print "Marking affected articles as read...\n";
4055                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
4056                                         }
4057                                 } else {
4058                                         print "No headlines\n";
4059                                 }
4060
4061                                 db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
4062                                         WHERE id = " . $line["id"]);
4063                         }
4064                 }
4065
4066                 print "All done.\n";
4067
4068         }
4069
4070         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
4071
4072                 require_once "lib/MiniTemplator.class.php";
4073
4074                 $tpl = new MiniTemplator;
4075                 $tpl_t = new MiniTemplator;
4076
4077                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
4078                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
4079
4080                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
4081                 $tpl->setVariable('CUR_TIME', date('G:i'));
4082
4083                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
4084                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
4085
4086                 $affected_ids = array();
4087
4088                 if (DB_TYPE == "pgsql") {
4089                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
4090                 } else if (DB_TYPE == "mysql") {
4091                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
4092                 }
4093
4094                 $result = db_query($link, "SELECT ttrss_entries.title,
4095                                 ttrss_feeds.title AS feed_title,
4096                                 date_updated,
4097                                 ttrss_user_entries.ref_id,
4098                                 link,
4099                                 SUBSTRING(content, 1, 120) AS excerpt,
4100                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4101                         FROM
4102                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
4103                         WHERE
4104                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
4105                                 AND include_in_digest = true
4106                                 AND $interval_query
4107                                 AND ttrss_user_entries.owner_uid = $user_id
4108                                 AND unread = true
4109                         ORDER BY ttrss_feeds.title, date_updated DESC
4110                         LIMIT $limit");
4111
4112                 $cur_feed_title = "";
4113
4114                 $headlines_count = db_num_rows($result);
4115
4116                 $headlines = array();
4117
4118                 while ($line = db_fetch_assoc($result)) {
4119                         array_push($headlines, $line);
4120                 }
4121
4122                 for ($i = 0; $i < sizeof($headlines); $i++) {
4123
4124                         $line = $headlines[$i];
4125
4126                         array_push($affected_ids, $line["ref_id"]);
4127
4128                         $updated = make_local_datetime($link, $line['last_updated'], false,
4129                                 $user_id);
4130
4131                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
4132                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
4133                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
4134                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
4135                         $tpl->setVariable('ARTICLE_EXCERPT',
4136                                 truncate_string(strip_tags($line["excerpt"]), 100));
4137
4138                         $tpl->addBlock('article');
4139
4140                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
4141                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
4142                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
4143                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
4144 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
4145 //                              truncate_string(strip_tags($line["excerpt"]), 100));
4146
4147                         $tpl_t->addBlock('article');
4148
4149                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
4150                                 $tpl->addBlock('feed');
4151                                 $tpl_t->addBlock('feed');
4152                         }
4153
4154                 }
4155
4156                 $tpl->addBlock('digest');
4157                 $tpl->generateOutputToString($tmp);
4158
4159                 $tpl_t->addBlock('digest');
4160                 $tpl_t->generateOutputToString($tmp_t);
4161
4162                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
4163         }
4164
4165         function check_for_update($link) {
4166                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
4167                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
4168
4169                         $version_data = @fetch_file_contents($version_url);
4170
4171                         if ($version_data) {
4172                                 $version_data = json_decode($version_data, true);
4173                                 if ($version_data && $version_data['version']) {
4174
4175                                         if (version_compare(VERSION, $version_data['version']) == -1) {
4176                                                 return $version_data;
4177                                         }
4178                                 }
4179                         }
4180                 }
4181                 return false;
4182         }
4183
4184         function markArticlesById($link, $ids, $cmode) {
4185
4186                 $tmp_ids = array();
4187
4188                 foreach ($ids as $id) {
4189                         array_push($tmp_ids, "ref_id = '$id'");
4190                 }
4191
4192                 $ids_qpart = join(" OR ", $tmp_ids);
4193
4194                 if ($cmode == 0) {
4195                         db_query($link, "UPDATE ttrss_user_entries SET
4196                         marked = false,last_read = NOW()
4197                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4198                 } else if ($cmode == 1) {
4199                         db_query($link, "UPDATE ttrss_user_entries SET
4200                         marked = true
4201                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4202                 } else {
4203                         db_query($link, "UPDATE ttrss_user_entries SET
4204                         marked = NOT marked,last_read = NOW()
4205                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4206                 }
4207         }
4208
4209         function publishArticlesById($link, $ids, $cmode) {
4210
4211                 $tmp_ids = array();
4212
4213                 foreach ($ids as $id) {
4214                         array_push($tmp_ids, "ref_id = '$id'");
4215                 }
4216
4217                 $ids_qpart = join(" OR ", $tmp_ids);
4218
4219                 if ($cmode == 0) {
4220                         db_query($link, "UPDATE ttrss_user_entries SET
4221                         published = false,last_read = NOW()
4222                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4223                 } else if ($cmode == 1) {
4224                         db_query($link, "UPDATE ttrss_user_entries SET
4225                         published = true
4226                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4227                 } else {
4228                         db_query($link, "UPDATE ttrss_user_entries SET
4229                         published = NOT published,last_read = NOW()
4230                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4231                 }
4232
4233                 if (PUBSUBHUBBUB_HUB) {
4234                         $rss_link = get_self_url_prefix() .
4235                                 "/backend.php?op=rss&id=-2&key=" .
4236                                 get_feed_access_key($link, -2, false);
4237
4238                         $p = new Publisher(PUBSUBHUBBUB_HUB);
4239
4240                         $pubsub_result = $p->publish_update($rss_link);
4241                 }
4242         }
4243
4244         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
4245
4246                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4247                 if (count($ids) == 0) return;
4248
4249                 $tmp_ids = array();
4250
4251                 foreach ($ids as $id) {
4252                         array_push($tmp_ids, "ref_id = '$id'");
4253                 }
4254
4255                 $ids_qpart = join(" OR ", $tmp_ids);
4256
4257                 if ($cmode == 0) {
4258                         db_query($link, "UPDATE ttrss_user_entries SET
4259                         unread = false,last_read = NOW()
4260                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4261                 } else if ($cmode == 1) {
4262                         db_query($link, "UPDATE ttrss_user_entries SET
4263                         unread = true
4264                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4265                 } else {
4266                         db_query($link, "UPDATE ttrss_user_entries SET
4267                         unread = NOT unread,last_read = NOW()
4268                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4269                 }
4270
4271                 /* update ccache */
4272
4273                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
4274                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4275
4276                 while ($line = db_fetch_assoc($result)) {
4277                         ccache_update($link, $line["feed_id"], $owner_uid);
4278                 }
4279         }
4280
4281         function catchupArticleById($link, $id, $cmode) {
4282
4283                 if ($cmode == 0) {
4284                         db_query($link, "UPDATE ttrss_user_entries SET
4285                         unread = false,last_read = NOW()
4286                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4287                 } else if ($cmode == 1) {
4288                         db_query($link, "UPDATE ttrss_user_entries SET
4289                         unread = true
4290                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4291                 } else {
4292                         db_query($link, "UPDATE ttrss_user_entries SET
4293                         unread = NOT unread,last_read = NOW()
4294                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4295                 }
4296
4297                 $feed_id = getArticleFeed($link, $id);
4298                 ccache_update($link, $feed_id, $_SESSION["uid"]);
4299         }
4300
4301         function make_guid_from_title($title) {
4302                 return preg_replace("/[ \"\',.:;]/", "-",
4303                         mb_strtolower(strip_tags($title), 'utf-8'));
4304         }
4305
4306         function format_headline_subtoolbar($link, $feed_site_url, $feed_title,
4307                         $feed_id, $is_cat, $search, $match_on,
4308                         $search_mode, $view_mode, $error) {
4309
4310                 $page_prev_link = "viewFeedGoPage(-1)";
4311                 $page_next_link = "viewFeedGoPage(1)";
4312                 $page_first_link = "viewFeedGoPage(0)";
4313
4314                 $catchup_page_link = "catchupPage()";
4315                 $catchup_feed_link = "catchupCurrentFeed()";
4316                 $catchup_sel_link = "catchupSelection()";
4317
4318                 $archive_sel_link = "archiveSelection()";
4319                 $delete_sel_link = "deleteSelection()";
4320
4321                 $sel_all_link = "selectArticles('all')";
4322                 $sel_unread_link = "selectArticles('unread')";
4323                 $sel_none_link = "selectArticles('none')";
4324                 $sel_inv_link = "selectArticles('invert')";
4325
4326                 $tog_unread_link = "selectionToggleUnread()";
4327                 $tog_marked_link = "selectionToggleMarked()";
4328                 $tog_published_link = "selectionTogglePublished()";
4329
4330                 $reply = "<div id=\"subtoolbar_main\">";
4331
4332                 $reply .= __('Select:')."
4333                         <a href=\"#\" onclick=\"$sel_all_link\">".__('All')."</a>,
4334                         <a href=\"#\" onclick=\"$sel_unread_link\">".__('Unread')."</a>,
4335                         <a href=\"#\" onclick=\"$sel_inv_link\">".__('Invert')."</a>,
4336                         <a href=\"#\" onclick=\"$sel_none_link\">".__('None')."</a></li>";
4337
4338                 $reply .= " ";
4339
4340                 $reply .= "<select dojoType=\"dijit.form.Select\"
4341                         onchange=\"headlineActionsChange(this)\">";
4342                 $reply .= "<option value=\"false\">".__('Actions...')."</option>";
4343
4344                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection toggle:')."</option>";
4345
4346                 $reply .= "<option value=\"$tog_unread_link\">".__('Unread')."</option>
4347                         <option value=\"$tog_marked_link\">".__('Starred')."</option>
4348                         <option value=\"$tog_published_link\">".__('Published')."</option>";
4349
4350                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection:')."</option>";
4351
4352                 $reply .= "<option value=\"$catchup_sel_link\">".__('Mark as read')."</option>";
4353
4354                 if ($feed_id != "0") {
4355                         $reply .= "<option value=\"$archive_sel_link\">".__('Archive')."</option>";
4356                 } else {
4357                         $reply .= "<option value=\"$archive_sel_link\">".__('Move back')."</option>";
4358                         $reply .= "<option value=\"$delete_sel_link\">".__('Delete')."</option>";
4359
4360                 }
4361
4362                 $reply .= "<option value=\"emailArticle(false)\">".__('Forward by email').
4363                         "</option>";
4364
4365                 if ($is_cat) $cat_q = "&is_cat=$is_cat";
4366
4367                 if ($search) {
4368                         $search_q = "&q=$search&m=$match_on&smode=$search_mode";
4369                 } else {
4370                         $search_q = "";
4371                 }
4372
4373                 $rss_link = htmlspecialchars(get_self_url_prefix() .
4374                         "/backend.php?op=rss&id=$feed_id$cat_q$search_q");
4375
4376                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Feed:')."</option>";
4377
4378                 $reply .= "<option value=\"catchupPage()\">".__('Mark as read')."</option>";
4379
4380                 $reply .= "<option value=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">".__('View as RSS')."</option>";
4381
4382                 $reply .= "</select>";
4383
4384                 $reply .= "</div>";
4385
4386                 $reply .= "<div id=\"subtoolbar_ftitle\">";
4387
4388                 if ($feed_site_url) {
4389                         $target = "target=\"_blank\"";
4390                         $reply .= "<a title=\"".__("Visit the website")."\" $target href=\"$feed_site_url\">".
4391                                 truncate_string($feed_title,30)."</a>";
4392
4393                         if ($error) {
4394                                 $reply .= " (<span class=\"error\" title=\"$error\">Error</span>)";
4395                         }
4396
4397                 } else {
4398                         if ($feed_id < -10) {
4399                                 $label_id = -11-$feed_id;
4400
4401                                 $result = db_query($link, "SELECT fg_color, bg_color
4402                                         FROM ttrss_labels2 WHERE id = '$label_id' AND owner_uid = " .
4403                                         $_SESSION["uid"]);
4404
4405                                 if (db_num_rows($result) != 0) {
4406                                         $fg_color = db_fetch_result($result, 0, "fg_color");
4407                                         $bg_color = db_fetch_result($result, 0, "bg_color");
4408
4409                                         $reply .= "<span style=\"background : $bg_color; color : $fg_color\" >";
4410                                         $reply .= $feed_title;
4411                                         $reply .= "</span>";
4412                                 } else {
4413                                         $reply .= $feed_title;
4414                                 }
4415
4416                         } else {
4417                                 $reply .= $feed_title;
4418                         }
4419                 }
4420
4421                 $reply .= "
4422                         <a href=\"#\"
4423                                 title=\"".__("View as RSS feed")."\"
4424                                 onclick=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">
4425                                 <img class=\"noborder\" style=\"vertical-align : middle\" src=\"images/feed-icon-12x12.png\"></a>";
4426
4427                 $reply .= "</div>";
4428
4429                 return $reply;
4430         }
4431
4432         function outputFeedList($link, $special = true) {
4433
4434                 $feedlist = array();
4435
4436                 $enable_cats = get_pref($link, 'ENABLE_FEED_CATS');
4437
4438                 $feedlist['identifier'] = 'id';
4439                 $feedlist['label'] = 'name';
4440                 $feedlist['items'] = array();
4441
4442                 $owner_uid = $_SESSION["uid"];
4443
4444                 /* virtual feeds */
4445
4446                 if ($special) {
4447
4448                         if ($enable_cats) {
4449                                 $cat_hidden = get_pref($link, "_COLLAPSED_SPECIAL");
4450                                 $cat = feedlist_init_cat($link, -1, $cat_hidden);
4451                         } else {
4452                                 $cat['items'] = array();
4453                         }
4454
4455                         foreach (array(-4, -3, -1, -2, 0) as $i) {
4456                                 array_push($cat['items'], feedlist_init_feed($link, $i));
4457                         }
4458
4459                         if ($enable_cats) {
4460                                 array_push($feedlist['items'], $cat);
4461                         } else {
4462                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4463                         }
4464
4465                         $result = db_query($link, "SELECT * FROM
4466                                 ttrss_labels2 WHERE owner_uid = '$owner_uid' ORDER by caption");
4467
4468                         if (db_num_rows($result) > 0) {
4469
4470                                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
4471                                         $cat_hidden = get_pref($link, "_COLLAPSED_LABELS");
4472                                         $cat = feedlist_init_cat($link, -2, $cat_hidden);
4473                                 } else {
4474                                         $cat['items'] = array();
4475                                 }
4476
4477                                 while ($line = db_fetch_assoc($result)) {
4478
4479                                         $label_id = -$line['id'] - 11;
4480                                         $count = getFeedUnread($link, $label_id);
4481
4482                                         $feed = feedlist_init_feed($link, $label_id, false, $count);
4483
4484                                         $feed['fg_color'] = $line['fg_color'];
4485                                         $feed['bg_color'] = $line['bg_color'];
4486
4487                                         array_push($cat['items'], $feed);
4488                                 }
4489
4490                                 if ($enable_cats) {
4491                                         array_push($feedlist['items'], $cat);
4492                                 } else {
4493                                         $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4494                                 }
4495                         }
4496                 }
4497
4498 /*              if (get_pref($link, 'ENABLE_FEED_CATS')) {
4499                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4500                                 $order_by_qpart = "order_id,category,unread DESC,title";
4501                         } else {
4502                                 $order_by_qpart = "order_id,category,title";
4503                         }
4504                 } else {
4505                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4506                                 $order_by_qpart = "unread DESC,title";
4507                         } else {
4508                                 $order_by_qpart = "title";
4509                         }
4510                 } */
4511
4512                 /* real feeds */
4513
4514                 if ($enable_cats)
4515                         $order_by_qpart = "ttrss_feed_categories.order_id,category,
4516                                 ttrss_feeds.order_id,title";
4517                 else
4518                         $order_by_qpart = "title";
4519
4520                 $age_qpart = getMaxAgeSubquery();
4521
4522                 $query = "SELECT ttrss_feeds.id, ttrss_feeds.title,
4523                         ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated_noms,
4524                         cat_id,last_error,
4525                         ttrss_feed_categories.title AS category,
4526                         ttrss_feed_categories.collapsed,
4527                         value AS unread
4528                         FROM ttrss_feeds LEFT JOIN ttrss_feed_categories
4529                                 ON (ttrss_feed_categories.id = cat_id)
4530                         LEFT JOIN ttrss_counters_cache
4531                                 ON
4532                                         (ttrss_feeds.id = feed_id)
4533                         WHERE
4534                                 ttrss_feeds.owner_uid = '$owner_uid'
4535                         ORDER BY $order_by_qpart";
4536
4537                 $result = db_query($link, $query);
4538
4539                 $actid = $_REQUEST["actid"];
4540
4541                 if (db_num_rows($result) > 0) {
4542
4543                         $category = "";
4544
4545                         if (!$enable_cats)
4546                                 $cat['items'] = array();
4547                         else
4548                                 $cat = false;
4549
4550                         while ($line = db_fetch_assoc($result)) {
4551
4552                                 $feed = htmlspecialchars(trim($line["title"]));
4553
4554                                 if (!$feed) $feed = "[Untitled]";
4555
4556                                 $feed_id = $line["id"];
4557                                 $unread = $line["unread"];
4558
4559                                 $cat_id = $line["cat_id"];
4560                                 $tmp_category = $line["category"];
4561                                 if (!$tmp_category) $tmp_category = __("Uncategorized");
4562
4563                                 if ($category != $tmp_category && $enable_cats) {
4564
4565                                         $category = $tmp_category;
4566
4567                                         $collapsed = sql_bool_to_bool($line["collapsed"]);
4568
4569                                         // workaround for NULL category
4570                                         if ($category == __("Uncategorized")) {
4571                                                 $collapsed = get_pref($link, "_COLLAPSED_UNCAT");
4572                                         }
4573
4574                                         if ($cat) array_push($feedlist['items'], $cat);
4575
4576                                         $cat = feedlist_init_cat($link, $cat_id, $collapsed);
4577                                 }
4578
4579                                 $updated = make_local_datetime($link, $line["updated_noms"], false);
4580
4581                                 array_push($cat['items'], feedlist_init_feed($link, $feed_id,
4582                                         $feed, $unread, $line['last_error'], $updated));
4583                         }
4584
4585                         if ($enable_cats) {
4586                                 array_push($feedlist['items'], $cat);
4587                         } else {
4588                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4589                         }
4590
4591                 }
4592
4593                 return $feedlist;
4594         }
4595
4596         function get_article_tags($link, $id, $owner_uid = 0, $tag_cache = false) {
4597
4598                 global $memcache;
4599
4600                 $a_id = db_escape_string($id);
4601
4602                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4603
4604                 $query = "SELECT DISTINCT tag_name,
4605                         owner_uid as owner FROM
4606                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
4607                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
4608
4609                 $obj_id = md5("TAGS:$owner_uid:$id");
4610                 $tags = array();
4611
4612                 if ($memcache && $obj = $memcache->get($obj_id)) {
4613                         $tags = $obj;
4614                 } else {
4615                         /* check cache first */
4616
4617                         if ($tag_cache === false) {
4618                                 $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
4619                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4620
4621                                 $tag_cache = db_fetch_result($result, 0, "tag_cache");
4622                         }
4623
4624                         if ($tag_cache) {
4625                                 $tags = explode(",", $tag_cache);
4626                         } else {
4627
4628                                 /* do it the hard way */
4629
4630                                 $tmp_result = db_query($link, $query);
4631
4632                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
4633                                         array_push($tags, $tmp_line["tag_name"]);
4634                                 }
4635
4636                                 /* update the cache */
4637
4638                                 $tags_str = db_escape_string(join(",", $tags));
4639
4640                                 db_query($link, "UPDATE ttrss_user_entries
4641                                         SET tag_cache = '$tags_str' WHERE ref_id = '$id'
4642                                         AND owner_uid = " . $_SESSION["uid"]);
4643                         }
4644
4645                         if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);
4646                 }
4647
4648                 return $tags;
4649         }
4650
4651         function trim_value(&$value) {
4652                 $value = trim($value);
4653         }
4654
4655         function trim_array($array) {
4656                 $tmp = $array;
4657                 array_walk($tmp, 'trim_value');
4658                 return $tmp;
4659         }
4660
4661         function tag_is_valid($tag) {
4662                 if ($tag == '') return false;
4663                 if (preg_match("/^[0-9]*$/", $tag)) return false;
4664                 if (mb_strlen($tag) > 250) return false;
4665
4666                 if (function_exists('iconv')) {
4667                         $tag = iconv("utf-8", "utf-8", $tag);
4668                 }
4669
4670                 if (!$tag) return false;
4671
4672                 return true;
4673         }
4674
4675         function render_login_form($link, $mobile = 0) {
4676                 switch ($mobile) {
4677                 case 0:
4678                         require_once "login_form.php";
4679                         break;
4680                 case 1:
4681                         require_once "mobile/login_form.php";
4682                         break;
4683                 case 2:
4684                         require_once "mobile/classic/login_form.php";
4685                 }
4686         }
4687
4688         // from http://developer.apple.com/internet/safari/faq.html
4689         function no_cache_incantation() {
4690                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
4691                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
4692                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
4693                 header("Cache-Control: post-check=0, pre-check=0", false);
4694                 header("Pragma: no-cache"); // HTTP/1.0
4695         }
4696
4697         function format_warning($msg, $id = "") {
4698                 global $link;
4699                 return "<div class=\"warning\" id=\"$id\">
4700                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4701         }
4702
4703         function format_notice($msg, $id = "") {
4704                 global $link;
4705                 return "<div class=\"notice\" id=\"$id\">
4706                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
4707         }
4708
4709         function format_error($msg, $id = "") {
4710                 global $link;
4711                 return "<div class=\"error\" id=\"$id\">
4712                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4713         }
4714
4715         function print_notice($msg) {
4716                 return print format_notice($msg);
4717         }
4718
4719         function print_warning($msg) {
4720                 return print format_warning($msg);
4721         }
4722
4723         function print_error($msg) {
4724                 return print format_error($msg);
4725         }
4726
4727
4728         function T_sprintf() {
4729                 $args = func_get_args();
4730                 return vsprintf(__(array_shift($args)), $args);
4731         }
4732
4733         function format_inline_player($link, $url, $ctype) {
4734
4735                 $entry = "";
4736
4737                 if (strpos($ctype, "audio/") === 0) {
4738
4739                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
4740                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
4741                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
4742
4743                                 $id = 'AUDIO-' . uniqid();
4744
4745                                 $entry .= "<audio id=\"$id\"\">
4746                                         <source src=\"$url\"></source>
4747                                         </audio>";
4748
4749                                 $entry .= "<span onclick=\"player(this)\"
4750                                         title=\"".__("Click to play")."\" status=\"0\"
4751                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
4752
4753                         } else {
4754
4755                                 $entry .= "<object type=\"application/x-shockwave-flash\"
4756                                         data=\"lib/button/musicplayer.swf?song_url=$url\"
4757                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
4758                                         <param name=\"movie\"
4759                                                 value=\"lib/button/musicplayer.swf?song_url=$url\" />
4760                                         </object>";
4761                         }
4762                 }
4763
4764                 $filename = substr($url, strrpos($url, "/")+1);
4765
4766                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4767                         $filename . " (" . $ctype . ")" . "</a>";
4768
4769                 return $entry;
4770         }
4771
4772         function format_article($link, $id, $mark_as_read = true, $zoom_mode = false) {
4773
4774                 $rv = array();
4775
4776                 $rv['id'] = $id;
4777
4778                 /* we can figure out feed_id from article id anyway, why do we
4779                  * pass feed_id here? let's ignore the argument :( */
4780
4781                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4782                         WHERE ref_id = '$id'");
4783
4784                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4785
4786                 $rv['feed_id'] = $feed_id;
4787
4788                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
4789
4790                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
4791                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
4792
4793                 if (db_num_rows($result) == 1) {
4794                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4795                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
4796                 } else {
4797                         $rtl_content = false;
4798                         $always_display_enclosures = false;
4799                 }
4800
4801                 if ($rtl_content) {
4802                         $rtl_tag = "dir=\"RTL\"";
4803                         $rtl_class = "RTL";
4804                 } else {
4805                         $rtl_tag = "";
4806                         $rtl_class = "";
4807                 }
4808
4809                 if ($mark_as_read) {
4810                         $result = db_query($link, "UPDATE ttrss_user_entries
4811                                 SET unread = false,last_read = NOW()
4812                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4813
4814                         ccache_update($link, $feed_id, $_SESSION["uid"]);
4815                 }
4816
4817                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
4818                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
4819                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
4820                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
4821                         num_comments,
4822                         tag_cache,
4823                         author,
4824                         orig_feed_id,
4825                         note
4826                         FROM ttrss_entries,ttrss_user_entries
4827                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
4828
4829                 if ($result) {
4830
4831                         $line = db_fetch_assoc($result);
4832
4833                         if ($line["icon_url"]) {
4834                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
4835                         } else {
4836                                 $feed_icon = "&nbsp;";
4837                         }
4838
4839                         $feed_site_url = $line['site_url'];
4840
4841                         $num_comments = $line["num_comments"];
4842                         $entry_comments = "";
4843
4844                         if ($num_comments > 0) {
4845                                 if ($line["comments"]) {
4846                                         $comments_url = $line["comments"];
4847                                 } else {
4848                                         $comments_url = $line["link"];
4849                                 }
4850                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
4851                         } else {
4852                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
4853                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
4854                                 }
4855                         }
4856
4857                         if ($zoom_mode) {
4858                                 header("Content-Type: text/html");
4859                                 $rv['content'] .= "<html><head>
4860                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
4861                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
4862                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
4863                                         </head><body>";
4864                         }
4865
4866                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
4867                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
4868
4869                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
4870
4871                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
4872                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
4873
4874                         $entry_author = $line["author"];
4875
4876                         if ($entry_author) {
4877                                 $entry_author = __(" - ") . $entry_author;
4878                         }
4879
4880                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
4881                                 false, true);
4882
4883                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
4884
4885                         if ($line["link"]) {
4886                                 $rv['content'] .= "<div clear='both'><a target='_blank'
4887                                         title=\"".htmlspecialchars($line['title'])."\"
4888                                         href=\"" .
4889                                         $line["link"] . "\">" .
4890                                         truncate_string($line["title"], 100) .
4891                                         "<span class='author'>$entry_author</span></a></div>";
4892                         } else {
4893                                 $rv['content'] .= "<div clear='both'>" . $line["title"] . "$entry_author</div>";
4894                         }
4895
4896                         $tag_cache = $line["tag_cache"];
4897
4898                         if (!$tag_cache)
4899                                 $tags = get_article_tags($link, $id);
4900                         else
4901                                 $tags = explode(",", $tag_cache);
4902
4903                         $tags_str = format_tags_string($tags, $id);
4904                         $tags_str_full = join(", ", $tags);
4905
4906                         if (!$tags_str_full) $tags_str_full = __("no tags");
4907
4908                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
4909
4910                         $rv['content'] .= "<div style='float : right'>
4911                                 <img src='".theme_image($link, 'images/tag.png')."'
4912                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
4913
4914                         if (!$zoom_mode) {
4915                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
4916                                         <a title=\"".__('Edit tags for this article')."\"
4917                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
4918
4919                                 $rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
4920                                         id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
4921                                         position=\"below\">$tags_str_full</div>";
4922
4923                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
4924                                                 class='tagsPic' style=\"cursor : pointer\"
4925                                                 onclick=\"postOpenInNewTab(event, $id)\"
4926                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
4927
4928                                 //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
4929
4930                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-pub-note.png')."\"
4931                                                 class='tagsPic' style=\"cursor : pointer\"
4932                                                 onclick=\"editArticleNote($id)\"
4933                                                 alt='PubNote' title='".__('Edit article note')."'>";
4934
4935                                 if (DIGEST_ENABLE) {
4936                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
4937                                                 class='tagsPic' style=\"cursor : pointer\"
4938                                                 onclick=\"emailArticle($id)\"
4939                                                 alt='Zoom' title='".__('Forward by email')."'>";
4940                                 }
4941
4942                                 if (ENABLE_TWEET_BUTTON) {
4943                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
4944                                                         class='tagsPic' style=\"cursor : pointer\"
4945                                                         onclick=\"tweetArticle($id)\"
4946                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
4947                                 }
4948
4949                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-share.png')."\"
4950                                         class='tagsPic' style=\"cursor : pointer\"
4951                                         onclick=\"shareArticle(".$line['int_id'].")\"
4952                                         alt='Zoom' title='".__('Share by URL')."'>";
4953
4954                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
4955                                                 class='tagsPic' style=\"cursor : pointer\"
4956                                                 onclick=\"closeArticlePanel($id)\"
4957                                                 alt='Zoom' title='".__('Close this panel')."'>";
4958
4959                         } else {
4960                                 $tags_str = strip_tags($tags_str);
4961                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
4962                         }
4963                         $rv['content'] .= "</div>";
4964                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
4965
4966                         if ($line["orig_feed_id"]) {
4967
4968                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
4969                                         WHERE id = ".$line["orig_feed_id"]);
4970
4971                                 if (db_num_rows($tmp_result) != 0) {
4972
4973                                         $rv['content'] .= "<div clear='both'>";
4974                                         $rv['content'] .= __("Originally from:");
4975
4976                                         $rv['content'] .= "&nbsp;";
4977
4978                                         $tmp_line = db_fetch_assoc($tmp_result);
4979
4980                                         $rv['content'] .= "<a target='_blank'
4981                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
4982                                                 $tmp_line['title'] . "</a>";
4983
4984                                         $rv['content'] .= "&nbsp;";
4985
4986                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
4987                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
4988
4989                                         $rv['content'] .= "</div>";
4990                                 }
4991                         }
4992
4993                         $rv['content'] .= "</div>";
4994
4995                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
4996                                 if ($line['note']) {
4997                                         $rv['content'] .= format_article_note($id, $line['note']);
4998                                 }
4999                         $rv['content'] .= "</div>";
5000
5001                         $rv['content'] .= "<div class=\"postIcon\">" .
5002                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
5003                                 href=\"".htmlspecialchars($feed_site_url)."\">".
5004                                 $feed_icon . "</a></div>";
5005
5006                         $rv['content'] .= "<div class=\"postContent\">";
5007
5008                         $article_content = sanitize_rss($link, $line["content"], false, false,
5009                                 $feed_site_url);
5010
5011                         $rv['content'] .= $article_content;
5012
5013                         $rv['content'] .= format_article_enclosures($link, $id,
5014                                 $always_display_enclosures, $article_content);
5015
5016                         $rv['content'] .= "</div>";
5017
5018                         $rv['content'] .= "</div>";
5019
5020                 }
5021
5022                 if ($zoom_mode) {
5023                         $rv['content'] .= "
5024                                 <div style=\"text-align : center\">
5025                                 <button onclick=\"return window.close()\">".
5026                                         __("Close this window")."</button></div>";
5027                         $rv['content'] .= "</body></html>";
5028                 }
5029
5030                 return $rv;
5031
5032         }
5033
5034         function format_headlines_list($link, $feed, $subop, $view_mode, $limit, $cat_view,
5035                                         $next_unread_feed, $offset, $vgr_last_feed = false,
5036                                         $override_order = false) {
5037
5038                 $disable_cache = false;
5039
5040                 $reply = array();
5041
5042                 $timing_info = getmicrotime();
5043
5044                 $topmost_article_ids = array();
5045
5046                 if (!$offset) $offset = 0;
5047                 if ($subop == "undefined") $subop = "";
5048
5049                 $subop_split = explode(":", $subop);
5050
5051 /*              if ($subop == "CatchupSelected") {
5052                         $ids = explode(",", db_escape_string($_REQUEST["ids"]));
5053                         $cmode = sprintf("%d", $_REQUEST["cmode"]);
5054
5055                         catchupArticlesById($link, $ids, $cmode);
5056                 } */
5057
5058                 if ($subop == "ForceUpdate" && $feed && is_numeric($feed) > 0) {
5059                         update_rss_feed($link, $feed, true);
5060                 }
5061
5062                 if ($subop == "MarkAllRead")  {
5063                         catchup_feed($link, $feed, $cat_view);
5064
5065                         if (get_pref($link, 'ON_CATCHUP_SHOW_NEXT_FEED')) {
5066                                 if ($next_unread_feed) {
5067                                         $feed = $next_unread_feed;
5068                                 }
5069                         }
5070                 }
5071
5072                 if ($subop_split[0] == "MarkAllReadGR")  {
5073                         catchup_feed($link, $subop_split[1], false);
5074                 }
5075
5076                 // FIXME: might break tag display?
5077
5078                 if (is_numeric($feed) && $feed > 0 && !$cat_view) {
5079                         $result = db_query($link,
5080                                 "SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");
5081
5082                         if (db_num_rows($result) == 0) {
5083                                 $reply['content'] = "<div align='center'>".__('Feed not found.')."</div>";
5084                         }
5085                 }
5086
5087                 if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
5088
5089                         $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
5090                                 WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
5091
5092                         if (db_num_rows($result) == 1) {
5093                                 $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
5094                         } else {
5095                                 $rtl_content = false;
5096                         }
5097
5098                         if ($rtl_content) {
5099                                 $rtl_tag = "dir=\"RTL\"";
5100                         } else {
5101                                 $rtl_tag = "";
5102                         }
5103                 } else {
5104                         $rtl_tag = "";
5105                         $rtl_content = false;
5106                 }
5107
5108                 @$search = db_escape_string($_REQUEST["query"]);
5109
5110                 if ($search) {
5111                         $disable_cache = true;
5112                 }
5113
5114                 @$search_mode = db_escape_string($_REQUEST["search_mode"]);
5115                 @$match_on = db_escape_string($_REQUEST["match_on"]);
5116
5117                 if (!$match_on) {
5118                         $match_on = "both";
5119                 }
5120
5121                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H0", $timing_info);
5122
5123 //              error_log("format_headlines_list: [" . $feed . "] subop [" . $subop . "]");
5124                 if( $search_mode == '' && $subop != '' ){
5125                     $search_mode = $subop;
5126                 }
5127 //              error_log("search_mode: " . $search_mode);
5128                 $qfh_ret = queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view,
5129                         $search, $search_mode, $match_on, $override_order, $offset);
5130
5131                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H1", $timing_info);
5132
5133                 $result = $qfh_ret[0];
5134                 $feed_title = $qfh_ret[1];
5135                 $feed_site_url = $qfh_ret[2];
5136                 $last_error = $qfh_ret[3];
5137
5138                 $vgroup_last_feed = $vgr_last_feed;
5139
5140 //              if (!$offset) {
5141
5142                         if (db_num_rows($result) > 0) {
5143                                 $reply['toolbar'] = format_headline_subtoolbar($link, $feed_site_url,
5144                                         $feed_title,
5145                                         $feed, $cat_view, $search, $match_on, $search_mode, $view_mode,
5146                                         $last_error);
5147                         }
5148 //              }
5149
5150                 $headlines_count = db_num_rows($result);
5151
5152                 if (db_num_rows($result) > 0) {
5153
5154                         $lnum = $offset;
5155
5156                         $num_unread = 0;
5157                         $cur_feed_title = '';
5158
5159                         $fresh_intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE") * 60 * 60;
5160
5161                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PS", $timing_info);
5162
5163                         while ($line = db_fetch_assoc($result)) {
5164
5165                                 $class = ($lnum % 2) ? "even" : "odd";
5166
5167                                 $id = $line["id"];
5168                                 $feed_id = $line["feed_id"];
5169                                 $label_cache = $line["label_cache"];
5170                                 $labels = false;
5171
5172                                 if ($label_cache) {
5173                                         $label_cache = json_decode($label_cache, true);
5174
5175                                         if ($label_cache) {
5176                                                 if ($label_cache["no-labels"] == 1)
5177                                                         $labels = array();
5178                                                 else
5179                                                         $labels = $label_cache;
5180                                         }
5181                                 }
5182
5183                                 if (!is_array($labels)) $labels = get_article_labels($link, $id);
5184
5185                                 $labels_str = "<span id=\"HLLCTR-$id\">";
5186                                 $labels_str .= format_article_labels($labels, $id);
5187                                 $labels_str .= "</span>";
5188
5189                                 if (count($topmost_article_ids) < 3) {
5190                                         array_push($topmost_article_ids, $id);
5191                                 }
5192
5193                                 if ($line["last_read"] == "" && !sql_bool_to_bool($line["unread"])) {
5194
5195                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5196                                                 theme_image($link, 'images/updated.png')."\"
5197                                                 alt=\"Updated\">";
5198                                 } else {
5199                                         $update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\"
5200                                                 alt=\"Updated\">";
5201                                 }
5202
5203                                 if (sql_bool_to_bool($line["unread"]) &&
5204                                         time() - strtotime($line["updated_noms"]) < $fresh_intl) {
5205
5206                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5207                                                 theme_image($link, 'images/fresh_sign.png')."\" alt=\"Fresh\">";
5208                                 }
5209
5210                                 if ($line["unread"] == "t" || $line["unread"] == "1") {
5211                                         $class .= " Unread";
5212                                         ++$num_unread;
5213                                         $is_unread = true;
5214                                 } else {
5215                                         $is_unread = false;
5216                                 }
5217
5218                                 if ($line["marked"] == "t" || $line["marked"] == "1") {
5219                                         $marked_pic = "<img id=\"FMPIC-$id\"
5220                                                 src=\"".theme_image($link, 'images/mark_set.png')."\"
5221                                                 class=\"markedPic\" alt=\"Unstar article\"
5222                                                 onclick='javascript:tMark($id)'>";
5223                                 } else {
5224                                         $marked_pic = "<img id=\"FMPIC-$id\"
5225                                                 src=\"".theme_image($link, 'images/mark_unset.png')."\"
5226                                                 class=\"markedPic\" alt=\"Star article\"
5227                                                 onclick='javascript:tMark($id)'>";
5228                                 }
5229
5230                                 if ($line["published"] == "t" || $line["published"] == "1") {
5231                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5232                                                 'images/pub_set.png')."\"
5233                                                 class=\"markedPic\"
5234                                                 alt=\"Unpublish article\" onclick='javascript:tPub($id)'>";
5235                                 } else {
5236                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5237                                                 'images/pub_unset.png')."\"
5238                                                 class=\"markedPic\"
5239                                                 alt=\"Publish article\" onclick='javascript:tPub($id)'>";
5240                                 }
5241
5242 #                               $content_link = "<a target=\"_blank\" href=\"".$line["link"]."\">" .
5243 #                                       $line["title"] . "</a>";
5244
5245 #                               $content_link = "<a
5246 #                                       href=\"" . htmlspecialchars($line["link"]) . "\"
5247 #                                       onclick=\"view($id,$feed_id);\">" .
5248 #                                       $line["title"] . "</a>";
5249
5250 #                               $content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
5251 #                                       $line["title"] . "</a>";
5252
5253                                 $updated_fmt = make_local_datetime($link, $line["updated_noms"], false);
5254
5255                                 if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5256                                         $content_preview = truncate_string(strip_tags($line["content_preview"]),
5257                                                 100);
5258                                 }
5259
5260                                 $score = $line["score"];
5261
5262                                 $score_pic = theme_image($link,
5263                                         "images/" . get_score_pic($score));
5264
5265 /*                              $score_title = __("(Click to change)");
5266                                 $score_pic = "<img class='hlScorePic' src=\"images/$score_pic\"
5267                                         onclick=\"adjustArticleScore($id, $score)\" title=\"$score $score_title\">"; */
5268
5269                                 $score_pic = "<img class='hlScorePic' src=\"$score_pic\"
5270                                         title=\"$score\">";
5271
5272                                 if ($score > 500) {
5273                                         $hlc_suffix = "H";
5274                                 } else if ($score < -100) {
5275                                         $hlc_suffix = "L";
5276                                 } else {
5277                                         $hlc_suffix = "";
5278                                 }
5279
5280                                 $entry_author = $line["author"];
5281
5282                                 if ($entry_author) {
5283                                         $entry_author = " - $entry_author";
5284                                 }
5285
5286                                 $has_feed_icon = feed_has_icon($feed_id);
5287
5288                                 if ($has_feed_icon) {
5289                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5290                                 } else {
5291                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/feed-icon-12x12.png\" alt=\"\">";
5292                                 }
5293
5294                                 if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
5295
5296                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5297                                                 if ($feed_id != $vgroup_last_feed && $line["feed_title"]) {
5298
5299                                                         $cur_feed_title = $line["feed_title"];
5300                                                         $vgroup_last_feed = $feed_id;
5301
5302                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5303
5304                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5305
5306                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5307                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5308                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5309                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5310
5311                                                 }
5312                                         }
5313
5314                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5315                                                 onmouseout='postMouseOut($id)'";
5316
5317                                         $reply['content'] .= "<div class='$class' id='RROW-$id' $mouseover_attrs>";
5318
5319                                         $reply['content'] .= "<div class='hlUpdPic'>$update_pic</div>";
5320
5321                                         $reply['content'] .= "<div class='hlLeft'>";
5322
5323                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"tSR(this)\"
5324                                                         id=\"RCHK-$id\">";
5325
5326                                         $reply['content'] .= "$marked_pic";
5327                                         $reply['content'] .= "$published_pic";
5328
5329                                         $reply['content'] .= "</div>";
5330
5331                                         $reply['content'] .= "<div onclick='return hlClicked(event, $id)'
5332                                                 class=\"hlTitle\"><span class='hlContent$hlc_suffix'>";
5333                                         $reply['content'] .= "<a id=\"RTITLE-$id\"
5334                                                 href=\"" . htmlspecialchars($line["link"]) . "\"
5335                                                 onclick=\"\">" .
5336                                                 truncate_string($line["title"], 200);
5337
5338                                         if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5339                                                 if ($content_preview) {
5340                                                         $reply['content'] .= "<span class=\"contentPreview\"> - $content_preview</span>";
5341                                                 }
5342                                         }
5343
5344                                         $reply['content'] .= "</a></span>";
5345
5346                                         $reply['content'] .= $labels_str;
5347
5348                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED') &&
5349                                                 defined('_SHOW_FEED_TITLE_IN_VFEEDS')) {
5350                                                 if (@$line["feed_title"]) {
5351                                                         $reply['content'] .= "<span class=\"hlFeed\">
5352                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5353                                                                 $line["feed_title"]."</a>)
5354                                                         </span>";
5355                                                 }
5356                                         }
5357
5358                                         $reply['content'] .= "</div>";
5359
5360                                         $reply['content'] .= "<span class=\"hlUpdated\">$updated_fmt</span>";
5361                                         $reply['content'] .= "<div class=\"hlRight\">";
5362
5363                                         $reply['content'] .= $score_pic;
5364
5365                                         if ($line["feed_title"] && !get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5366
5367                                                 $reply['content'] .= "<span onclick=\"viewfeed($feed_id)\"
5368                                                         style=\"cursor : pointer\"
5369                                                         title=\"".htmlspecialchars($line['feed_title'])."\">
5370                                                         $feed_icon_img<span>";
5371                                         }
5372
5373                                         $reply['content'] .= "</div>";
5374                                         $reply['content'] .= "</div>";
5375
5376                                 } else {
5377
5378                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED') && $line["feed_title"]) {
5379                                                 if ($feed_id != $vgroup_last_feed) {
5380
5381                                                         $cur_feed_title = $line["feed_title"];
5382                                                         $vgroup_last_feed = $feed_id;
5383
5384                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5385
5386                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5387
5388                                                         $has_feed_icon = feed_has_icon($feed_id);
5389
5390                                                         if ($has_feed_icon) {
5391                                                                 $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5392                                                         } else {
5393                                                                 //$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
5394                                                         }
5395
5396                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5397                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5398                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5399                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5400                                                 }
5401                                         }
5402
5403                                         $expand_cdm = get_pref($link, 'CDM_EXPANDED');
5404
5405                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5406                                                 onmouseout='postMouseOut($id)'";
5407
5408                                         $reply['content'] .= "<div class=\"$class\"
5409                                                 id=\"RROW-$id\" $mouseover_attrs'>";
5410
5411                                         $reply['content'] .= "<div class=\"cdmHeader\">";
5412
5413                                         $reply['content'] .= "<div>";
5414
5415                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"toggleSelectRowById(this,
5416                                                         'RROW-$id')\" id=\"RCHK-$id\"/>";
5417
5418                                         $reply['content'] .= "$marked_pic";
5419                                         $reply['content'] .= "$published_pic";
5420
5421                                         $reply['content'] .= "</div>";
5422
5423                                         $reply['content'] .= "<span id=\"RTITLE-$id\"
5424                                                 onclick=\"return cdmClicked(event, $id);\"
5425                                                 class=\"titleWrap$hlc_suffix\">
5426                                                 <a class=\"title\"
5427                                                 title=\"".htmlspecialchars($line['title'])."\"
5428                                                 target=\"_blank\" href=\"".
5429                                                 htmlspecialchars($line["link"])."\">".
5430                                                 truncate_string($line["title"], 100) .
5431                                                 " $entry_author</a>";
5432
5433                                         $reply['content'] .= $labels_str;
5434
5435                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED') &&
5436                                                 defined('_SHOW_FEED_TITLE_IN_VFEEDS')) {
5437                                                 if (@$line["feed_title"]) {
5438                                                         $reply['content'] .= "<span class=\"hlFeed\">
5439                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5440                                                                 $line["feed_title"]."</a>)
5441                                                         </span>";
5442                                                 }
5443                                         }
5444
5445                                         if (!$expand_cdm)
5446                                                 $content_hidden = "style=\"display : none\"";
5447                                         else
5448                                                 $excerpt_hidden = "style=\"display : none\"";
5449
5450                                         $reply['content'] .= "<span $excerpt_hidden
5451                                                 id=\"CEXC-$id\" class=\"cdmExcerpt\"> - $content_preview</span>";
5452
5453                                         $reply['content'] .= "</span>";
5454
5455                                         $reply['content'] .= "<div>";
5456                                         $reply['content'] .= "<span class='updated'>$updated_fmt</span>";
5457                                         $reply['content'] .= "$score_pic";
5458
5459                                         if (!get_pref($link, "VFEED_GROUP_BY_FEED") && $line["feed_title"]) {
5460                                                 $reply['content'] .= "<span style=\"cursor : pointer\"
5461                                                         title=\"".htmlspecialchars($line["feed_title"])."\"
5462                                                         onclick=\"viewfeed($feed_id)\">$feed_icon_img</span>";
5463                                         }
5464                                         $reply['content'] .= "<div class=\"updPic\">$update_pic</div>";
5465                                         $reply['content'] .= "</div>";
5466
5467                                         $reply['content'] .= "</div>";
5468
5469                                         $reply['content'] .= "<div class=\"cdmContent\" $content_hidden
5470                                                 onclick=\"return cdmClicked(event, $id);\"
5471                                                 id=\"CICD-$id\">";
5472
5473                                         $reply['content'] .= "<div class=\"cdmContentInner\">";
5474
5475                         if ($line["orig_feed_id"]) {
5476
5477                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
5478                                         WHERE id = ".$line["orig_feed_id"]);
5479
5480                                                 if (db_num_rows($tmp_result) != 0) {
5481
5482                                                         $reply['content'] .= "<div clear='both'>";
5483                                                         $reply['content'] .= __("Originally from:");
5484
5485                                                         $reply['content'] .= "&nbsp;";
5486
5487                                                         $tmp_line = db_fetch_assoc($tmp_result);
5488
5489                                                         $reply['content'] .= "<a target='_blank'
5490                                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
5491                                                                 $tmp_line['title'] . "</a>";
5492
5493                                                         $reply['content'] .= "&nbsp;";
5494
5495                                                         $reply['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
5496                                                         $reply['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
5497
5498                                                         $reply['content'] .= "</div>";
5499                                                 }
5500                                         }
5501
5502                                         // FIXME: make this less of a hack
5503
5504                                         $feed_site_url = false;
5505
5506                                         if ($line["feed_id"]) {
5507                                                 $tmp_result = db_query($link, "SELECT site_url FROM ttrss_feeds
5508                                                         WHERE id = " . $line["feed_id"]);
5509
5510                                                 if (db_num_rows($tmp_result) == 1) {
5511                                                         $feed_site_url = db_fetch_result($tmp_result, 0, "site_url");
5512                                                 }
5513                                         }
5514
5515                                         $article_content = sanitize_rss($link, $line["content_preview"],
5516                                                         false, false, $feed_site_url);
5517
5518                                         $reply['content'] .= "<div id=\"POSTNOTE-$id\">";
5519                                         if ($line['note']) {
5520                                                 $reply['content'] .= format_article_note($id, $line['note']);
5521                                         }
5522                                         $reply['content'] .= "</div>";
5523
5524                                         $reply['content'] .= "<span id=\"CWRAP-$id\">";
5525                                         $reply['content'] .= $expand_cdm ? $article_content : '';
5526                                         $reply['content'] .= "</span>";
5527
5528 /*                                      $tmp_result = db_query($link, "SELECT always_display_enclosures FROM
5529                                                 ttrss_feeds WHERE id = ".
5530                                                 (($line['feed_id'] == null) ? $line['orig_feed_id'] :
5531                                                         $line['feed_id'])." AND owner_uid = ".$_SESSION["uid"]);
5532
5533                                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($tmp_result,
5534                                                 0, "always_display_enclosures")); */
5535
5536                                         $always_display_enclosures = sql_bool_to_bool($line["always_display_enclosures"]);
5537
5538                                         $reply['content'] .= format_article_enclosures($link, $id, $always_display_enclosures,
5539                                                 $article_content);
5540
5541                                         $reply['content'] .= "</div>";
5542
5543                                         $reply['content'] .= "<div class=\"cdmFooter\">";
5544
5545                                         $tag_cache = $line["tag_cache"];
5546
5547                                         $tags_str = format_tags_string(
5548                                                 get_article_tags($link, $id, $_SESSION["uid"], $tag_cache),
5549                                                 $id);
5550
5551                                         $reply['content'] .= "<img src='".theme_image($link,
5552                                                         'images/tag.png')."' alt='Tags' title='Tags'>
5553                                                 <span id=\"ATSTR-$id\">$tags_str</span>
5554                                                 <a title=\"".__('Edit tags for this article')."\"
5555                                                 href=\"#\" onclick=\"editArticleTags($id, $feed_id, true)\">(+)</a>";
5556
5557                                         $reply['content'] .= "<div style=\"float : right\">";
5558
5559                                         $reply['content'] .= "<img src=\"images/art-zoom.png\"
5560                                                 onclick=\"zoomToArticle(event, $id)\"
5561                                                 style=\"cursor : pointer\"
5562                                                 alt='Zoom'
5563                                                 title='".__('Open article in new tab')."'>";
5564
5565                                         //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
5566
5567                                         $reply['content'] .= "<img src=\"images/art-pub-note.png\"
5568                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5569                                                 onclick=\"editArticleNote($id)\"
5570                                                 alt='PubNote' title='".__('Edit article note')."'>";
5571
5572                                         if (DIGEST_ENABLE) {
5573                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
5574                                                         style=\"cursor : pointer\"
5575                                                         onclick=\"emailArticle($id)\"
5576                                                         alt='Zoom' title='".__('Forward by email')."'>";
5577                                         }
5578
5579                                         if (ENABLE_TWEET_BUTTON) {
5580                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
5581                                                         class='tagsPic' style=\"cursor : pointer\"
5582                                                         onclick=\"tweetArticle($id)\"
5583                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
5584                                         }
5585
5586                                         $reply['content'] .= "<img src=\"images/digest_checkbox.png\"
5587                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5588                                                 onclick=\"dismissArticle($id)\"
5589                                                 alt='Dismiss' title='".__('Dismiss article')."'>";
5590
5591                                         $reply['content'] .= "</div>";
5592                                         $reply['content'] .= "</div>";
5593
5594                                         $reply['content'] .= "</div>";
5595
5596                                         $reply['content'] .= "</div>";
5597
5598                                 }
5599
5600                                 ++$lnum;
5601                         }
5602
5603                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PE", $timing_info);
5604
5605                 } else {
5606                         $message = "";
5607
5608                         switch ($view_mode) {
5609                                 case "unread":
5610                                         $message = __("No unread articles found to display.");
5611                                         break;
5612                                 case "updated":
5613                                         $message = __("No updated articles found to display.");
5614                                         break;
5615                                 case "marked":
5616                                         $message = __("No starred articles found to display.");
5617                                         break;
5618                                 default:
5619                                         if ($feed < -10) {
5620                                                 $message = __("No articles found to display. You can assign articles to labels manually (see the Actions menu above) or use a filter.");
5621                                         } else {
5622                                                 $message = __("No articles found to display.");
5623                                         }
5624                         }
5625
5626                         if (!$offset && $message) {
5627                                 $reply['content'] .= "<div class='whiteBox'>$message";
5628
5629                                 $reply['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
5630
5631                                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
5632                                         WHERE owner_uid = " . $_SESSION['uid']);
5633
5634                                 $last_updated = db_fetch_result($result, 0, "last_updated");
5635                                 $last_updated = make_local_datetime($link, $last_updated, false);
5636
5637                                 $reply['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
5638
5639                                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
5640                                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
5641
5642                                 $num_errors = db_fetch_result($result, 0, "num_errors");
5643
5644                                 if ($num_errors > 0) {
5645                                         $reply['content'] .= "<br/>";
5646                                         $reply['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
5647                                                 __('Some feeds have update errors (click for details)')."</a>";
5648                                 }
5649                                 $reply['content'] .= "</span></p></div>";
5650                         }
5651                 }
5652
5653                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H2", $timing_info);
5654
5655                 return array($topmost_article_ids, $headlines_count, $feed, $disable_cache,
5656                         $vgroup_last_feed, $reply);
5657         }
5658
5659 // from here: http://www.roscripts.com/Create_tag_cloud-71.html
5660
5661         function printTagCloud($link) {
5662
5663                 $query = "SELECT tag_name, COUNT(post_int_id) AS count
5664                         FROM ttrss_tags WHERE owner_uid = ".$_SESSION["uid"]."
5665                         GROUP BY tag_name ORDER BY count DESC LIMIT 50";
5666
5667                 $result = db_query($link, $query);
5668
5669                 $tags = array();
5670
5671                 while ($line = db_fetch_assoc($result)) {
5672                         $tags[$line["tag_name"]] = $line["count"];
5673                 }
5674
5675         if( count($tags) == 0 ){ return; }
5676
5677                 ksort($tags);
5678
5679                 $max_size = 32; // max font size in pixels
5680                 $min_size = 11; // min font size in pixels
5681
5682                 // largest and smallest array values
5683                 $max_qty = max(array_values($tags));
5684                 $min_qty = min(array_values($tags));
5685
5686                 // find the range of values
5687                 $spread = $max_qty - $min_qty;
5688                 if ($spread == 0) { // we don't want to divide by zero
5689                                 $spread = 1;
5690                 }
5691
5692                 // set the font-size increment
5693                 $step = ($max_size - $min_size) / ($spread);
5694
5695                 // loop through the tag array
5696                 foreach ($tags as $key => $value) {
5697                         // calculate font-size
5698                         // find the $value in excess of $min_qty
5699                         // multiply by the font-size increment ($size)
5700                         // and add the $min_size set above
5701                         $size = round($min_size + (($value - $min_qty) * $step));
5702
5703                         $key_escaped = str_replace("'", "\\'", $key);
5704
5705                         echo "<a href=\"javascript:viewfeed('$key_escaped') \" style=\"font-size: " .
5706                                 $size . "px\" title=\"$value articles tagged with " .
5707                                 $key . '">' . $key . '</a> ';
5708                 }
5709         }
5710
5711         function print_checkpoint($n, $s) {
5712                 $ts = getmicrotime();
5713                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
5714                 return $ts;
5715         }
5716
5717         function sanitize_tag($tag) {
5718                 $tag = trim($tag);
5719
5720                 $tag = mb_strtolower($tag, 'utf-8');
5721
5722                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
5723
5724 //              $tag = str_replace('"', "", $tag);
5725 //              $tag = str_replace("+", " ", $tag);
5726                 $tag = str_replace("technorati tag: ", "", $tag);
5727
5728                 return $tag;
5729         }
5730
5731         function get_self_url_prefix() {
5732                 return SELF_URL_PATH;
5733         }
5734
5735         function opml_publish_url($link){
5736
5737                 $url_path = get_self_url_prefix();
5738                 $url_path .= "/opml.php?op=publish&key=" .
5739                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
5740
5741                 return $url_path;
5742         }
5743
5744         /**
5745          * Purge a feed contents, marked articles excepted.
5746          *
5747          * @param mixed $link The database connection.
5748          * @param integer $id The id of the feed to purge.
5749          * @return void
5750          */
5751         function clear_feed_articles($link, $id) {
5752
5753                 if ($id != 0) {
5754                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5755                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5756                 } else {
5757                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5758                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5759                 }
5760
5761                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
5762                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
5763
5764                 ccache_update($link, $id, $_SESSION['uid']);
5765         } // function clear_feed_articles
5766
5767         /**
5768          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
5769          *
5770          * @return string The Mozilla Firefox feed adding URL.
5771          */
5772         function add_feed_url() {
5773                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
5774
5775                 $url_path = get_self_url_prefix() .
5776                         "/backend.php?op=pref-feeds&quiet=1&subop=add&feed_url=%s";
5777                 return $url_path;
5778         } // function add_feed_url
5779
5780         /**
5781          * Encrypt a password in SHA1.
5782          *
5783          * @param string $pass The password to encrypt.
5784          * @param string $login A optionnal login.
5785          * @return string The encrypted password.
5786          */
5787         function encrypt_password($pass, $login = '') {
5788                 if ($login) {
5789                         return "SHA1X:" . sha1("$login:$pass");
5790                 } else {
5791                         return "SHA1:" . sha1($pass);
5792                 }
5793         } // function encrypt_password
5794
5795         /**
5796          * Update a feed batch.
5797          * Used by daemons to update n feeds by run.
5798          * Only update feed needing a update, and not being processed
5799          * by another process.
5800          *
5801          * @param mixed $link Database link
5802          * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
5803          * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
5804          * @param boolean $debug Set to false to disable debug output. Default to true.
5805          * @return void
5806          */
5807         function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
5808                 // Process all other feeds using last_updated and interval parameters
5809
5810                 // Test if the user has loggued in recently. If not, it does not update its feeds.
5811                 if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
5812                         if (DB_TYPE == "pgsql") {
5813                                 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
5814                         } else {
5815                                 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
5816                         }
5817                 } else {
5818                         $login_thresh_qpart = "";
5819                 }
5820
5821                 // Test if the feed need a update (update interval exceded).
5822                 if (DB_TYPE == "pgsql") {
5823                         $update_limit_qpart = "AND ((
5824                                         ttrss_feeds.update_interval = 0
5825                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
5826                                 ) OR (
5827                                         ttrss_feeds.update_interval > 0
5828                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
5829                                 ) OR ttrss_feeds.last_updated IS NULL)";
5830                 } else {
5831                         $update_limit_qpart = "AND ((
5832                                         ttrss_feeds.update_interval = 0
5833                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
5834                                 ) OR (
5835                                         ttrss_feeds.update_interval > 0
5836                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
5837                                 ) OR ttrss_feeds.last_updated IS NULL)";
5838                 }
5839
5840                 // Test if feed is currently being updated by another process.
5841                 if (DB_TYPE == "pgsql") {
5842                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '5 minutes')";
5843                 } else {
5844                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 5 MINUTE))";
5845                 }
5846
5847                 // Test if there is a limit to number of updated feeds
5848                 $query_limit = "";
5849                 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
5850
5851                 $random_qpart = sql_random_function();
5852
5853                 // We search for feed needing update.
5854                 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
5855                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
5856                                 ttrss_feeds.update_interval
5857                         FROM
5858                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
5859                         WHERE
5860                                 ttrss_feeds.owner_uid = ttrss_users.id
5861                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
5862                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
5863                                 $login_thresh_qpart $update_limit_qpart
5864                          $updstart_thresh_qpart
5865                         ORDER BY $random_qpart $query_limit");
5866
5867                 $user_prefs_cache = array();
5868
5869                 if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
5870
5871                 // Here is a little cache magic in order to minimize risk of double feed updates.
5872                 $feeds_to_update = array();
5873                 while ($line = db_fetch_assoc($result)) {
5874                         $feeds_to_update[$line['id']] = $line;
5875                 }
5876
5877                 // We update the feed last update started date before anything else.
5878                 // There is no lag due to feed contents downloads
5879                 // It prevent an other process to update the same feed.
5880                 $feed_ids = array_keys($feeds_to_update);
5881                 if($feed_ids) {
5882                         db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
5883                                 WHERE id IN (%s)", implode(',', $feed_ids)));
5884                 }
5885
5886                 // For each feed, we call the feed update function.
5887                 while ($line = array_pop($feeds_to_update)) {
5888
5889                         if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
5890
5891                         update_rss_feed($link, $line["id"], true);
5892
5893                         sleep(1); // prevent flood (FIXME make this an option?)
5894                 }
5895
5896                 // Send feed digests by email if needed.
5897                 if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
5898
5899         } // function update_daemon_common
5900
5901         function sanitize_article_content($text) {
5902                 # we don't support CDATA sections in articles, they break our own escaping
5903                 $text = preg_replace("/\[\[CDATA/", "", $text);
5904                 $text = preg_replace("/\]\]\>/", "", $text);
5905                 return $text;
5906         }
5907
5908         function load_filters($link, $feed, $owner_uid, $action_id = false) {
5909                 $filters = array();
5910
5911                 global $memcache;
5912
5913                 $obj_id = md5("FILTER:$feed:$owner_uid:$action_id");
5914
5915                 if ($memcache && $obj = $memcache->get($obj_id)) {
5916
5917                         return $obj;
5918
5919                 } else {
5920
5921                         if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
5922
5923                         $result = db_query($link, "SELECT reg_exp,
5924                                 ttrss_filter_types.name AS name,
5925                                 ttrss_filter_actions.name AS action,
5926                                 inverse,
5927                                 action_param,
5928                                 filter_param
5929                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
5930                                         enabled = true AND
5931                                         $ftype_query_part
5932                                         owner_uid = $owner_uid AND
5933                                         ttrss_filter_types.id = filter_type AND
5934                                         ttrss_filter_actions.id = action_id AND
5935                                         (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
5936
5937                         while ($line = db_fetch_assoc($result)) {
5938                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
5939                                         $filter["reg_exp"] = $line["reg_exp"];
5940                                         $filter["action"] = $line["action"];
5941                                         $filter["action_param"] = $line["action_param"];
5942                                         $filter["filter_param"] = $line["filter_param"];
5943                                         $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
5944
5945                                         array_push($filters[$line["name"]], $filter);
5946                                 }
5947
5948                         if ($memcache) $memcache->add($obj_id, $filters, 0, 3600*8);
5949
5950                         return $filters;
5951                 }
5952         }
5953
5954         function get_score_pic($score) {
5955                 if ($score > 100) {
5956                         return "score_high.png";
5957                 } else if ($score > 0) {
5958                         return "score_half_high.png";
5959                 } else if ($score < -100) {
5960                         return "score_low.png";
5961                 } else if ($score < 0) {
5962                         return "score_half_low.png";
5963                 } else {
5964                         return "score_neutral.png";
5965                 }
5966         }
5967
5968         function rounded_table_start($classname, $header = "&nbsp;") {
5969                 print "<table width='100%' class='$classname' cellspacing='0' cellpadding='0'>";
5970                 print "<tr><td class='c1'>&nbsp;</td><td class='top'>$header</td><td class='c2'>&nbsp;</td></tr>";
5971                 print "<tr><td class='left'>&nbsp;</td><td class='content'>";
5972         }
5973
5974         function rounded_table_end($footer = "&nbsp;") {
5975                 print "</td><td class='right'>&nbsp;</td></tr>";
5976                 print "<tr><td class='c4'>&nbsp;</td><td class='bottom'>$footer</td><td class='c3'>&nbsp;</td></tr>";
5977                 print "</table>";
5978         }
5979
5980         function feed_has_icon($id) {
5981                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
5982         }
5983
5984         function init_connection($link) {
5985                 if (DB_TYPE == "pgsql") {
5986                         pg_query($link, "set client_encoding = 'UTF-8'");
5987                         pg_set_client_encoding("UNICODE");
5988                         pg_query($link, "set datestyle = 'ISO, european'");
5989                         pg_query($link, "set TIME ZONE 0");
5990                 } else {
5991                         db_query($link, "SET time_zone = '+0:0'");
5992
5993                         if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
5994                                 db_query($link, "SET NAMES " . MYSQL_CHARSET);
5995         //                      db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
5996                         }
5997                 }
5998         }
5999
6000         function update_feedbrowser_cache($link) {
6001
6002                 $result = db_query($link, "SELECT feed_url, site_url, title, COUNT(id) AS subscribers
6003                         FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
6004                                 WHERE tf.feed_url = ttrss_feeds.feed_url
6005                                 AND (private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%'))
6006                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
6007
6008                 db_query($link, "BEGIN");
6009
6010                 db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
6011
6012                 $count = 0;
6013
6014                 while ($line = db_fetch_assoc($result)) {
6015                         $subscribers = db_escape_string($line["subscribers"]);
6016                         $feed_url = db_escape_string($line["feed_url"]);
6017                         $title = db_escape_string($line["title"]);
6018                         $site_url = db_escape_string($line["site_url"]);
6019
6020                         $tmp_result = db_query($link, "SELECT subscribers FROM
6021                                 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
6022
6023                         if (db_num_rows($tmp_result) == 0) {
6024
6025                                 db_query($link, "INSERT INTO ttrss_feedbrowser_cache
6026                                         (feed_url, site_url, title, subscribers) VALUES ('$feed_url',
6027                                                 '$site_url', '$title', '$subscribers')");
6028
6029                                 ++$count;
6030
6031                         }
6032
6033                 }
6034
6035                 db_query($link, "COMMIT");
6036
6037                 return $count;
6038
6039         }
6040
6041         function ccache_zero($link, $feed_id, $owner_uid) {
6042                 db_query($link, "UPDATE ttrss_counters_cache SET
6043                         value = 0, updated = NOW() WHERE
6044                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
6045         }
6046
6047         function ccache_zero_all($link, $owner_uid) {
6048                 db_query($link, "UPDATE ttrss_counters_cache SET
6049                         value = 0 WHERE owner_uid = '$owner_uid'");
6050
6051                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
6052                         value = 0 WHERE owner_uid = '$owner_uid'");
6053         }
6054
6055         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
6056
6057                 if (!$is_cat) {
6058                         $table = "ttrss_counters_cache";
6059                 } else {
6060                         $table = "ttrss_cat_counters_cache";
6061                 }
6062
6063                 db_query($link, "DELETE FROM $table WHERE
6064                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
6065
6066         }
6067
6068         function ccache_update_all($link, $owner_uid) {
6069
6070                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
6071
6072                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
6073                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
6074
6075                         while ($line = db_fetch_assoc($result)) {
6076                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
6077                         }
6078
6079                         /* We have to manually include category 0 */
6080
6081                         ccache_update($link, 0, $owner_uid, true);
6082
6083                 } else {
6084                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
6085                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
6086
6087                         while ($line = db_fetch_assoc($result)) {
6088                                 print ccache_update($link, $line["feed_id"], $owner_uid);
6089
6090                         }
6091
6092                 }
6093         }
6094
6095         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
6096                 $no_update = false) {
6097
6098                 if (!is_numeric($feed_id)) return;
6099
6100                 if (!$is_cat) {
6101                         $table = "ttrss_counters_cache";
6102                         if ($feed_id > 0) {
6103                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
6104                                         WHERE id = '$feed_id'");
6105                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
6106                         }
6107                 } else {
6108                         $table = "ttrss_cat_counters_cache";
6109                 }
6110
6111                 if (DB_TYPE == "pgsql") {
6112                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
6113                 } else if (DB_TYPE == "mysql") {
6114                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
6115                 }
6116
6117                 $result = db_query($link, "SELECT value FROM $table
6118                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
6119                         LIMIT 1");
6120
6121                 if (db_num_rows($result) == 1) {
6122                         return db_fetch_result($result, 0, "value");
6123                 } else {
6124                         if ($no_update) {
6125                                 return -1;
6126                         } else {
6127                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
6128                         }
6129                 }
6130
6131         }
6132
6133         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
6134                 $update_pcat = true) {
6135
6136                 if (!is_numeric($feed_id)) return;
6137
6138                 if (!$is_cat && $feed_id > 0) {
6139                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
6140                                 WHERE id = '$feed_id'");
6141                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
6142                 }
6143
6144                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
6145
6146                 /* When updating a label, all we need to do is recalculate feed counters
6147                  * because labels are not cached */
6148
6149                 if ($feed_id < 0) {
6150                         ccache_update_all($link, $owner_uid);
6151                         return;
6152                 }
6153
6154                 if (!$is_cat) {
6155                         $table = "ttrss_counters_cache";
6156                 } else {
6157                         $table = "ttrss_cat_counters_cache";
6158                 }
6159
6160                 if ($is_cat && $feed_id >= 0) {
6161                         if ($feed_id != 0) {
6162                                 $cat_qpart = "cat_id = '$feed_id'";
6163                         } else {
6164                                 $cat_qpart = "cat_id IS NULL";
6165                         }
6166
6167                         /* Recalculate counters for child feeds */
6168
6169                         $result = db_query($link, "SELECT id FROM ttrss_feeds
6170                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
6171
6172                         while ($line = db_fetch_assoc($result)) {
6173                                 ccache_update($link, $line["id"], $owner_uid, false, false);
6174                         }
6175
6176                         $result = db_query($link, "SELECT SUM(value) AS sv
6177                                 FROM ttrss_counters_cache, ttrss_feeds
6178                                 WHERE id = feed_id AND $cat_qpart AND
6179                                 ttrss_feeds.owner_uid = '$owner_uid'");
6180
6181                         $unread = (int) db_fetch_result($result, 0, "sv");
6182
6183                 } else {
6184                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
6185                 }
6186
6187                 db_query($link, "BEGIN");
6188
6189                 $result = db_query($link, "SELECT feed_id FROM $table
6190                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
6191
6192                 if (db_num_rows($result) == 1) {
6193                         db_query($link, "UPDATE $table SET
6194                                 value = '$unread', updated = NOW() WHERE
6195                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
6196
6197                 } else {
6198                         db_query($link, "INSERT INTO $table
6199                                 (feed_id, value, owner_uid, updated)
6200                                 VALUES
6201                                 ($feed_id, $unread, $owner_uid, NOW())");
6202                 }
6203
6204                 db_query($link, "COMMIT");
6205
6206                 if ($feed_id > 0 && $prev_unread != $unread) {
6207
6208                         if (!$is_cat) {
6209
6210                                 /* Update parent category */
6211
6212                                 if ($update_pcat) {
6213
6214                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
6215                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
6216
6217                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
6218
6219                                         ccache_update($link, $cat_id, $owner_uid, true);
6220
6221                                 }
6222                         }
6223                 } else if ($feed_id < 0) {
6224                         ccache_update_all($link, $owner_uid);
6225                 }
6226
6227                 return $unread;
6228         }
6229
6230         function ccache_cleanup($link, $owner_uid) {
6231
6232                 if (DB_TYPE == "pgsql") {
6233                         db_query($link, "DELETE FROM ttrss_counters_cache AS c1 WHERE
6234                                 (SELECT count(*) FROM ttrss_counters_cache AS c2
6235                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
6236                                         AND owner_uid = '$owner_uid'");
6237
6238                         db_query($link, "DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
6239                                 (SELECT count(*) FROM ttrss_cat_counters_cache AS c2
6240                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
6241                                         AND owner_uid = '$owner_uid'");
6242                 } else {
6243                         db_query($link, "DELETE c1 FROM
6244                                         ttrss_counters_cache AS c1,
6245                                         ttrss_counters_cache AS c2
6246                                 WHERE
6247                                         c1.owner_uid = '$owner_uid' AND
6248                                         c1.owner_uid = c2.owner_uid AND
6249                                         c1.feed_id = c2.feed_id");
6250
6251                         db_query($link, "DELETE c1 FROM
6252                                         ttrss_cat_counters_cache AS c1,
6253                                         ttrss_cat_counters_cache AS c2
6254                                 WHERE
6255                                         c1.owner_uid = '$owner_uid' AND
6256                                         c1.owner_uid = c2.owner_uid AND
6257                                         c1.feed_id = c2.feed_id");
6258
6259                 }
6260         }
6261
6262         function label_find_id($link, $label, $owner_uid) {
6263                 $result = db_query($link,
6264                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
6265                                 AND owner_uid = '$owner_uid' LIMIT 1");
6266
6267                 if (db_num_rows($result) == 1) {
6268                         return db_fetch_result($result, 0, "id");
6269                 } else {
6270                         return 0;
6271                 }
6272         }
6273
6274         function get_article_labels($link, $id) {
6275                 global $memcache;
6276
6277                 $obj_id = md5("LABELS:$id:" . $_SESSION["uid"]);
6278
6279                 $rv = array();
6280
6281                 if ($memcache && $obj = $memcache->get($obj_id)) {
6282                         return $obj;
6283                 } else {
6284
6285                         $result = db_query($link, "SELECT label_cache FROM
6286                                 ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
6287                                 $_SESSION["uid"]);
6288
6289                         $label_cache = db_fetch_result($result, 0, "label_cache");
6290
6291                         if ($label_cache) {
6292
6293                                 $label_cache = json_decode($label_cache, true);
6294
6295                                 if ($label_cache["no-labels"] == 1)
6296                                         return $rv;
6297                                 else
6298                                         return $label_cache;
6299                         }
6300
6301                         $result = db_query($link,
6302                                 "SELECT DISTINCT label_id,caption,fg_color,bg_color
6303                                         FROM ttrss_labels2, ttrss_user_labels2
6304                                 WHERE id = label_id
6305                                         AND article_id = '$id'
6306                                         AND owner_uid = ".$_SESSION["uid"] . "
6307                                 ORDER BY caption");
6308
6309                         while ($line = db_fetch_assoc($result)) {
6310                                 $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
6311                                         $line["bg_color"]);
6312                                 array_push($rv, $rk);
6313                         }
6314                         if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6315
6316                         if (count($rv) > 0)
6317                                 label_update_cache($link, $id, $rv);
6318                         else
6319                                 label_update_cache($link, $id, array("no-labels" => 1));
6320                 }
6321
6322                 return $rv;
6323         }
6324
6325
6326         function label_find_caption($link, $label, $owner_uid) {
6327                 $result = db_query($link,
6328                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
6329                                 AND owner_uid = '$owner_uid' LIMIT 1");
6330
6331                 if (db_num_rows($result) == 1) {
6332                         return db_fetch_result($result, 0, "caption");
6333                 } else {
6334                         return "";
6335                 }
6336         }
6337
6338         function label_update_cache($link, $id, $labels = false, $force = false) {
6339
6340                 if ($force)
6341                         label_clear_cache($link, $id);
6342
6343                 if (!$labels)
6344                         $labels = get_article_labels($link, $id);
6345
6346                 $labels = db_escape_string(json_encode($labels));
6347
6348                 db_query($link, "UPDATE ttrss_user_entries SET
6349                         label_cache = '$labels' WHERE ref_id = '$id'");
6350
6351         }
6352
6353         function label_clear_cache($link, $id) {
6354
6355                 db_query($link, "UPDATE ttrss_user_entries SET
6356                         label_cache = '' WHERE ref_id = '$id'");
6357
6358         }
6359
6360         function label_remove_article($link, $id, $label, $owner_uid) {
6361
6362                 $label_id = label_find_id($link, $label, $owner_uid);
6363
6364                 if (!$label_id) return;
6365
6366                 $result = db_query($link,
6367                         "DELETE FROM ttrss_user_labels2
6368                         WHERE
6369                                 label_id = '$label_id' AND
6370                                 article_id = '$id'");
6371
6372                 label_clear_cache($link, $id);
6373         }
6374
6375         function label_add_article($link, $id, $label, $owner_uid) {
6376
6377                 global $memcache;
6378
6379                 if ($memcache) {
6380                         $obj_id = md5("LABELS:$id:$owner_uid");
6381                         $memcache->delete($obj_id);
6382                 }
6383
6384                 $label_id = label_find_id($link, $label, $owner_uid);
6385
6386                 if (!$label_id) return;
6387
6388                 $result = db_query($link,
6389                         "SELECT
6390                                 article_id FROM ttrss_labels2, ttrss_user_labels2
6391                         WHERE
6392                                 label_id = id AND
6393                                 label_id = '$label_id' AND
6394                                 article_id = '$id' AND owner_uid = '$owner_uid'
6395                         LIMIT 1");
6396
6397                 if (db_num_rows($result) == 0) {
6398                         db_query($link, "INSERT INTO ttrss_user_labels2
6399                                 (label_id, article_id) VALUES ('$label_id', '$id')");
6400                 }
6401
6402                 label_clear_cache($link, $id);
6403
6404         }
6405
6406         function label_remove($link, $id, $owner_uid) {
6407                 global $memcache;
6408
6409                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6410
6411                 if ($memcache) {
6412                         $obj_id = md5("LABELS:$id:$owner_uid");
6413                         $memcache->delete($obj_id);
6414                 }
6415
6416                 db_query($link, "BEGIN");
6417
6418                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6419                         WHERE id = '$id'");
6420
6421                 $caption = db_fetch_result($result, 0, "caption");
6422
6423                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
6424                         AND owner_uid = " . $owner_uid);
6425
6426                 if (db_affected_rows($link, $result) != 0 && $caption) {
6427
6428                         /* Remove access key for the label */
6429
6430                         $ext_id = -11 - $id;
6431
6432                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6433                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
6434
6435                         /* Disable filters that reference label being removed */
6436
6437                         db_query($link, "UPDATE ttrss_filters SET
6438                                 enabled = false WHERE action_param = '$caption'
6439                                         AND action_id = 7
6440                                         AND owner_uid = " . $owner_uid);
6441
6442                         /* Remove cached data */
6443
6444                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
6445                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
6446
6447                 }
6448
6449                 db_query($link, "COMMIT");
6450         }
6451
6452         function label_create($link, $caption) {
6453
6454                 db_query($link, "BEGIN");
6455
6456                 $result = false;
6457
6458                 $result = db_query($link, "SELECT id FROM ttrss_labels2
6459                         WHERE caption = '$caption' AND owner_uid =  ". $_SESSION["uid"]);
6460
6461                 if (db_num_rows($result) == 0) {
6462                         $result = db_query($link,
6463                                 "INSERT INTO ttrss_labels2 (caption,owner_uid)
6464                                         VALUES ('$caption', '".$_SESSION["uid"]."')");
6465
6466                         $result = db_affected_rows($link, $result) != 0;
6467                 }
6468
6469                 db_query($link, "COMMIT");
6470
6471                 return $result;
6472         }
6473
6474         function print_labels_headlines_dropdown($link, $feed_id) {
6475                 print "<option value=\"addLabel()\">".__("Create label...")."</option>";
6476
6477                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2 WHERE
6478                         owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6479
6480                 while ($line = db_fetch_assoc($result)) {
6481
6482                         $label_id = $line["id"];
6483                         $label_caption = $line["caption"];
6484                         $id = $line["id"];
6485
6486                         if ($feed_id < -10 && $feed_id == -11-$label_id) {
6487                                 print "<option id=\"LHDL-$id\"
6488                                         value=\"selectionRemoveLabel($label_id)\">".
6489                                         __('Remove:') . " $label_caption</option>";
6490                         } else {
6491                                 print "<option id=\"LHDL-$id\"
6492                                         value=\"selectionAssignLabel($label_id)\">".
6493                                         __('Assign:') . " $label_caption</option>";
6494                         }
6495                 }
6496         }
6497
6498         function format_tags_string($tags, $id) {
6499
6500                 $tags_str = "";
6501                 $tags_nolinks_str = "";
6502
6503                 $num_tags = 0;
6504
6505                 $tag_limit = 6;
6506
6507                 $formatted_tags = array();
6508
6509                 foreach ($tags as $tag) {
6510                         $num_tags++;
6511                         $tag_escaped = str_replace("'", "\\'", $tag);
6512
6513                         if (mb_strlen($tag) > 30) {
6514                                 $tag = truncate_string($tag, 30);
6515                         }
6516
6517                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
6518
6519                         array_push($formatted_tags, $tag_str);
6520
6521                         $tmp_tags_str = implode(", ", $formatted_tags);
6522
6523                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
6524                                 break;
6525                         }
6526                 }
6527
6528                 $tags_str = implode(", ", $formatted_tags);
6529
6530                 if ($num_tags < count($tags)) {
6531                         $tags_str .= ", &hellip;";
6532                 }
6533
6534                 if ($num_tags == 0) {
6535                         $tags_str = __("no tags");
6536                 }
6537
6538                 return $tags_str;
6539
6540         }
6541
6542         function format_article_labels($labels, $id) {
6543
6544                 $labels_str = "";
6545
6546                 foreach ($labels as $l) {
6547                         $labels_str .= sprintf("<span class='hlLabelRef'
6548                                 style='color : %s; background-color : %s'>%s</span>",
6549                                         $l[2], $l[3], $l[1]);
6550                         }
6551
6552                 return $labels_str;
6553
6554         }
6555
6556         function format_article_note($id, $note) {
6557
6558                 $str = "<div class='articleNote'        onclick=\"editArticleNote($id)\">
6559                         <div class='noteEdit' onclick=\"editArticleNote($id)\">".
6560                         __('(edit note)')."</div>$note</div>";
6561
6562                 return $str;
6563         }
6564
6565         function toggle_collapse_cat($link, $cat_id, $mode) {
6566                 if ($cat_id > 0) {
6567                         $mode = bool_to_sql_bool($mode);
6568
6569                         db_query($link, "UPDATE ttrss_feed_categories SET
6570                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
6571                                 $_SESSION["uid"]);
6572                 } else {
6573                         $pref_name = '';
6574
6575                         switch ($cat_id) {
6576                         case -1:
6577                                 $pref_name = '_COLLAPSED_SPECIAL';
6578                                 break;
6579                         case -2:
6580                                 $pref_name = '_COLLAPSED_LABELS';
6581                                 break;
6582                         case 0:
6583                                 $pref_name = '_COLLAPSED_UNCAT';
6584                                 break;
6585                         }
6586
6587                         if ($pref_name) {
6588                                 if ($mode) {
6589                                         set_pref($link, $pref_name, 'true');
6590                                 } else {
6591                                         set_pref($link, $pref_name, 'false');
6592                                 }
6593                         }
6594                 }
6595         }
6596
6597         function remove_feed($link, $id, $owner_uid) {
6598
6599                 if ($id > 0) {
6600
6601                         /* save starred articles in Archived feed */
6602
6603                         db_query($link, "BEGIN");
6604
6605                         /* prepare feed if necessary */
6606
6607                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6608                                 WHERE id = '$id'");
6609
6610                         if (db_num_rows($result) == 0) {
6611                                 db_query($link, "INSERT INTO ttrss_archived_feeds
6612                                         (id, owner_uid, title, feed_url, site_url)
6613                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6614                                 WHERE id = '$id'");
6615                         }
6616
6617                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
6618                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
6619                                         marked = true AND owner_uid = $owner_uid");
6620
6621                         /* Remove access key for the feed */
6622
6623                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6624                                 feed_id = '$id' AND owner_uid = $owner_uid");
6625
6626                         /* remove the feed */
6627
6628                         db_query($link, "DELETE FROM ttrss_feeds
6629                                         WHERE id = '$id' AND owner_uid = $owner_uid");
6630
6631                         db_query($link, "COMMIT");
6632
6633                         if (file_exists(ICONS_DIR . "/$id.ico")) {
6634                                 unlink(ICONS_DIR . "/$id.ico");
6635                         }
6636
6637                         ccache_remove($link, $id, $owner_uid);
6638
6639                 } else {
6640                         label_remove($link, -11-$id, $owner_uid);
6641                         ccache_remove($link, -11-$id, $owner_uid);
6642                 }
6643         }
6644
6645         function add_feed_category($link, $feed_cat) {
6646
6647                 if (!$feed_cat) return false;
6648
6649                 db_query($link, "BEGIN");
6650
6651                 $result = db_query($link,
6652                         "SELECT id FROM ttrss_feed_categories
6653                         WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
6654
6655                 if (db_num_rows($result) == 0) {
6656
6657                         $result = db_query($link,
6658                                 "INSERT INTO ttrss_feed_categories (owner_uid,title)
6659                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
6660
6661                         db_query($link, "COMMIT");
6662
6663                         return true;
6664                 }
6665
6666                 return false;
6667         }
6668
6669         function remove_feed_category($link, $id, $owner_uid) {
6670
6671                 db_query($link, "DELETE FROM ttrss_feed_categories
6672                         WHERE id = '$id' AND owner_uid = $owner_uid");
6673
6674                 ccache_remove($link, $id, $owner_uid, true);
6675         }
6676
6677         function archive_article($link, $id, $owner_uid) {
6678                 db_query($link, "BEGIN");
6679
6680                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6681                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
6682
6683                 if (db_num_rows($result) != 0) {
6684
6685                         /* prepare the archived table */
6686
6687                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
6688
6689                         if ($feed_id) {
6690                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6691                                         WHERE id = '$feed_id'");
6692
6693                                 if (db_num_rows($result) == 0) {
6694                                         db_query($link, "INSERT INTO ttrss_archived_feeds
6695                                                 (id, owner_uid, title, feed_url, site_url)
6696                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6697                                         WHERE id = '$feed_id'");
6698                                 }
6699
6700                                 db_query($link, "UPDATE ttrss_user_entries
6701                                         SET orig_feed_id = feed_id, feed_id = NULL
6702                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6703                         }
6704                 }
6705
6706                 db_query($link, "COMMIT");
6707         }
6708
6709         function getArticleFeed($link, $id) {
6710                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6711                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6712
6713                 if (db_num_rows($result) != 0) {
6714                         return db_fetch_result($result, 0, "feed_id");
6715                 } else {
6716                         return 0;
6717                 }
6718         }
6719
6720         function make_url_from_parts($parts) {
6721                 $url = $parts['scheme'] . '://' . $parts['host'];
6722
6723                 if ($parts['path']) $url .= $parts['path'];
6724                 if ($parts['query']) $url .= '?' . $parts['query'];
6725
6726                 return $url;
6727         }
6728
6729         /**
6730          * Fixes incomplete URLs by prepending "http://".
6731          * Also replaces feed:// with http://, and
6732          * prepends a trailing slash if the url is a domain name only.
6733          *
6734          * @param string $url Possibly incomplete URL
6735          *
6736          * @return string Fixed URL.
6737          */
6738         function fix_url($url) {
6739                 if (strpos($url, '://') === false) {
6740                         $url = 'http://' . $url;
6741                 } else if (substr($url, 0, 5) == 'feed:') {
6742                         $url = 'http:' . substr($url, 5);
6743                 }
6744
6745                 //prepend slash if the URL has no slash in it
6746                 // "http://www.example" -> "http://www.example/"
6747                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
6748                         $url .= '/';
6749                 }
6750
6751                 if ($url != "http:///")
6752                         return $url;
6753                 else
6754                         return '';
6755         }
6756
6757         function validate_feed_url($url) {
6758                 $parts = parse_url($url);
6759
6760                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
6761
6762         }
6763
6764         function get_article_enclosures($link, $id) {
6765
6766                 global $memcache;
6767
6768                 $query = "SELECT * FROM ttrss_enclosures
6769                         WHERE post_id = '$id' AND content_url != ''";
6770
6771                 $obj_id = md5("ENCLOSURES:$id");
6772
6773                 $rv = array();
6774
6775                 if ($memcache && $obj = $memcache->get($obj_id)) {
6776                         $rv = $obj;
6777                 } else {
6778                         $result = db_query($link, $query);
6779
6780                         if (db_num_rows($result) > 0) {
6781                                 while ($line = db_fetch_assoc($result)) {
6782                                         array_push($rv, $line);
6783                                 }
6784                                 if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6785                         }
6786                 }
6787
6788                 return $rv;
6789         }
6790
6791         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset) {
6792
6793                         $feeds = array();
6794
6795                         /* Labels */
6796
6797                         if ($cat_id == -4 || $cat_id == -2) {
6798                                 $counters = getLabelCounters($link, true);
6799
6800                                 foreach (array_values($counters) as $cv) {
6801
6802                                         $unread = $cv["counter"];
6803
6804                                         if ($unread || !$unread_only) {
6805
6806                                                 $row = array(
6807                                                                 "id" => $cv["id"],
6808                                                                 "title" => $cv["description"],
6809                                                                 "unread" => $cv["counter"],
6810                                                                 "cat_id" => -2,
6811                                                         );
6812
6813                                                 array_push($feeds, $row);
6814                                         }
6815                                 }
6816                         }
6817
6818                         /* Virtual feeds */
6819
6820                         if ($cat_id == -4 || $cat_id == -1) {
6821                                 foreach (array(-1, -2, -3, -4, 0) as $i) {
6822                                         $unread = getFeedUnread($link, $i);
6823
6824                                         if ($unread || !$unread_only) {
6825                                                 $title = getFeedTitle($link, $i);
6826
6827                                                 $row = array(
6828                                                                 "id" => $i,
6829                                                                 "title" => $title,
6830                                                                 "unread" => $unread,
6831                                                                 "cat_id" => -1,
6832                                                         );
6833                                                 array_push($feeds, $row);
6834                                         }
6835
6836                                 }
6837                         }
6838
6839                         /* Real feeds */
6840
6841                         if ($limit) {
6842                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
6843                         } else {
6844                                 $limit_qpart = "";
6845                         }
6846
6847                         if ($cat_id == -4 || $cat_id == -3) {
6848                                 $result = db_query($link, "SELECT
6849                                         id, feed_url, cat_id, title, ".
6850                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6851                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
6852                                                 " ORDER BY cat_id, title " . $limit_qpart);
6853                         } else {
6854
6855                                 if ($cat_id)
6856                                         $cat_qpart = "cat_id = '$cat_id'";
6857                                 else
6858                                         $cat_qpart = "cat_id IS NULL";
6859
6860                                 $result = db_query($link, "SELECT
6861                                         id, feed_url, cat_id, title, ".
6862                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6863                                                 FROM ttrss_feeds WHERE
6864                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
6865                                                 " ORDER BY cat_id, title " . $limit_qpart);
6866                         }
6867
6868                         while ($line = db_fetch_assoc($result)) {
6869
6870                                 $unread = getFeedUnread($link, $line["id"]);
6871
6872                                 $has_icon = feed_has_icon($line['id']);
6873
6874                                 if ($unread || !$unread_only) {
6875
6876                                         $row = array(
6877                                                         "feed_url" => $line["feed_url"],
6878                                                         "title" => $line["title"],
6879                                                         "id" => (int)$line["id"],
6880                                                         "unread" => (int)$unread,
6881                                                         "has_icon" => $has_icon,
6882                                                         "cat_id" => (int)$line["cat_id"],
6883                                                         "last_updated" => strtotime($line["last_updated"])
6884                                                 );
6885
6886                                         array_push($feeds, $row);
6887                                 }
6888                         }
6889
6890                 return $feeds;
6891         }
6892
6893         function api_get_headlines($link, $feed_id, $limit, $offset,
6894                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
6895                                 $include_attachments, $since_id) {
6896
6897                         /* do not rely on params below */
6898
6899                         $search = db_escape_string($_REQUEST["search"]);
6900                         $search_mode = db_escape_string($_REQUEST["search_mode"]);
6901                         $match_on = db_escape_string($_REQUEST["match_on"]);
6902
6903                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
6904                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
6905                                 $order, $offset, 0, false, $since_id);
6906
6907                         $result = $qfh_ret[0];
6908                         $feed_title = $qfh_ret[1];
6909
6910                         $headlines = array();
6911
6912                         while ($line = db_fetch_assoc($result)) {
6913                                 $is_updated = ($line["last_read"] == "" &&
6914                                         ($line["unread"] != "t" && $line["unread"] != "1"));
6915
6916                                 $headline_row = array(
6917                                                 "id" => (int)$line["id"],
6918                                                 "unread" => sql_bool_to_bool($line["unread"]),
6919                                                 "marked" => sql_bool_to_bool($line["marked"]),
6920                                                 "published" => sql_bool_to_bool($line["published"]),
6921                                                 "updated" => strtotime($line["updated"]),
6922                                                 "is_updated" => $is_updated,
6923                                                 "title" => $line["title"],
6924                                                 "link" => $line["link"],
6925                                                 "feed_id" => $line["feed_id"],
6926                                                 "tags" => get_article_tags($link, $line["id"]),
6927                                         );
6928
6929                                         if ($include_attachments)
6930                                                 $headline_row['attachments'] = get_article_enclosures($link,
6931                                                         $line['id']);
6932
6933                                 if ($show_excerpt) {
6934                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
6935                                         $headline_row["excerpt"] = $excerpt;
6936                                 }
6937
6938                                 if ($show_content) {
6939                                         $headline_row["content"] = $line["content_preview"];
6940                                 }
6941
6942                                 array_push($headlines, $headline_row);
6943                         }
6944
6945                         return $headlines;
6946         }
6947
6948         function generate_error_feed($link, $error) {
6949                 $reply = array();
6950
6951                 $reply['headlines']['id'] = -6;
6952                 $reply['headlines']['is_cat'] = false;
6953
6954                 $reply['headlines']['toolbar'] = '';
6955                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
6956
6957                 $reply['headlines-info'] = array("count" => 0,
6958                         "vgroup_last_feed" => '',
6959                         "unread" => 0,
6960                         "disable_cache" => true);
6961
6962                 return $reply;
6963         }
6964
6965
6966         function generate_dashboard_feed($link) {
6967                 $reply = array();
6968
6969                 $reply['headlines']['id'] = -5;
6970                 $reply['headlines']['is_cat'] = false;
6971
6972                 $reply['headlines']['toolbar'] = '';
6973                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
6974
6975                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
6976
6977                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
6978                         WHERE owner_uid = " . $_SESSION['uid']);
6979
6980                 $last_updated = db_fetch_result($result, 0, "last_updated");
6981                 $last_updated = make_local_datetime($link, $last_updated, false);
6982
6983                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
6984
6985                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
6986                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
6987
6988                 $num_errors = db_fetch_result($result, 0, "num_errors");
6989
6990                 if ($num_errors > 0) {
6991                         $reply['headlines']['content'] .= "<br/>";
6992                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
6993                                 __('Some feeds have update errors (click for details)')."</a>";
6994                 }
6995                 $reply['headlines']['content'] .= "</span></p>";
6996
6997                 $reply['headlines-info'] = array("count" => 0,
6998                         "vgroup_last_feed" => '',
6999                         "unread" => 0,
7000                         "disable_cache" => true);
7001
7002                 return $reply;
7003         }
7004
7005         function save_email_address($link, $email) {
7006                 // FIXME: implement persistent storage of emails
7007
7008                 if (!$_SESSION['stored_emails'])
7009                         $_SESSION['stored_emails'] = array();
7010
7011                 if (!in_array($email, $_SESSION['stored_emails']))
7012                         array_push($_SESSION['stored_emails'], $email);
7013         }
7014
7015         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
7016                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
7017
7018                 $sql_is_cat = bool_to_sql_bool($is_cat);
7019
7020                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
7021                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
7022                         AND owner_uid = " . $owner_uid);
7023
7024                 if (db_num_rows($result) == 1) {
7025                         $key = db_escape_string(sha1(uniqid(rand(), true)));
7026
7027                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
7028                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
7029                                 AND owner_uid = " . $owner_uid);
7030
7031                         return $key;
7032
7033                 } else {
7034                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
7035                 }
7036         }
7037
7038         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
7039
7040                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
7041
7042                 $sql_is_cat = bool_to_sql_bool($is_cat);
7043
7044                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
7045                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
7046                         AND owner_uid = " . $owner_uid);
7047
7048                 if (db_num_rows($result) == 1) {
7049                         return db_fetch_result($result, 0, "access_key");
7050                 } else {
7051                         $key = db_escape_string(sha1(uniqid(rand(), true)));
7052
7053                         $result = db_query($link, "INSERT INTO ttrss_access_keys
7054                                 (access_key, feed_id, is_cat, owner_uid)
7055                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
7056
7057                         return $key;
7058                 }
7059                 return false;
7060         }
7061
7062         /**
7063          * Extracts RSS/Atom feed URLs from the given HTML URL.
7064          *
7065          * @param string $url HTML page URL
7066          *
7067          * @return array Array of feeds. Key is the full URL, value the title
7068          */
7069         function get_feeds_from_html($url, $login = false, $pass = false)
7070         {
7071                 $url     = fix_url($url);
7072                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
7073
7074                 libxml_use_internal_errors(true);
7075
7076                 $content = @fetch_file_contents($url, false, $login, $pass);
7077
7078                 $doc = new DOMDocument();
7079                 $doc->loadHTML($content);
7080                 $xpath = new DOMXPath($doc);
7081                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
7082                 $feedUrls = array();
7083                 foreach ($entries as $entry) {
7084                         if ($entry->hasAttribute('href')) {
7085                                 $title = $entry->getAttribute('title');
7086                                 if ($title == '') {
7087                                         $title = $entry->getAttribute('type');
7088                                 }
7089                                 $feedUrl = rewrite_relative_url(
7090                                         $baseUrl, $entry->getAttribute('href')
7091                                 );
7092                                 $feedUrls[$feedUrl] = $title;
7093                         }
7094                 }
7095                 return $feedUrls;
7096         }
7097
7098         /**
7099          * Checks if the content behind the given URL is a HTML file
7100          *
7101          * @param string $url URL to check
7102          *
7103          * @return boolean True if the URL contains HTML content
7104          */
7105         function url_is_html($url, $login = false, $pass = false) {
7106                 $content = substr(fetch_file_contents($url, false, $login, $pass), 0, 1000);
7107
7108                 if (stripos($content, '<html>') === false
7109                         && stripos($content, '<html ') === false
7110                 ) {
7111                         return false;
7112                 }
7113
7114                 return true;
7115         }
7116
7117         function print_label_select($link, $name, $value, $attributes = "") {
7118
7119                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
7120                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
7121
7122                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
7123                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
7124
7125                 while ($line = db_fetch_assoc($result)) {
7126
7127                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
7128
7129                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
7130                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
7131
7132                 }
7133
7134 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
7135
7136                 print "</select>";
7137
7138
7139         }
7140
7141         function format_article_enclosures($link, $id, $always_display_enclosures,
7142                                         $article_content) {
7143
7144                 $result = get_article_enclosures($link, $id);
7145                 $rv = '';
7146
7147                 if (count($result) > 0) {
7148
7149                         $entries_html = array();
7150                         $entries = array();
7151
7152                         foreach ($result as $line) {
7153
7154                                 $url = $line["content_url"];
7155                                 $ctype = $line["content_type"];
7156
7157                                 if (!$ctype) $ctype = __("unknown type");
7158
7159 #                               $filename = substr($url, strrpos($url, "/")+1);
7160
7161                                 $entry = format_inline_player($link, $url, $ctype);
7162
7163 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
7164 #                                       $filename . " (" . $ctype . ")" . "</a>";
7165
7166                                 array_push($entries_html, $entry);
7167
7168                                 $entry = array();
7169
7170                                 $entry["type"] = $ctype;
7171                                 $entry["filename"] = $filename;
7172                                 $entry["url"] = $url;
7173
7174                                 array_push($entries, $entry);
7175                         }
7176
7177                         $rv .= "<div class=\"postEnclosures\">";
7178
7179                         if (!get_pref($link, "STRIP_IMAGES")) {
7180                                 if ($always_display_enclosures ||
7181                                                         !preg_match("/<img/i", $article_content)) {
7182
7183                                         foreach ($entries as $entry) {
7184
7185                                                 if (preg_match("/image/", $entry["type"]) ||
7186                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
7187
7188                                                                 $rv .= "<p><img
7189                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
7190                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
7191                                                 }
7192                                         }
7193                                 }
7194                         }
7195
7196                         if (count($entries) == 1) {
7197                                 $rv .= __("Attachment:") . " ";
7198                         } else {
7199                                 $rv .= __("Attachments:") . " ";
7200                         }
7201
7202                         $rv .= join(", ", $entries_html);
7203
7204                         $rv .= "</div>";
7205                 }
7206
7207                 return $rv;
7208         }
7209
7210         function getLastArticleId($link) {
7211                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
7212                         WHERE owner_uid = " . $_SESSION["uid"]);
7213
7214                 if (db_num_rows($result) == 1) {
7215                         return db_fetch_result($result, 0, "id");
7216                 } else {
7217                         return -1;
7218                 }
7219         }
7220
7221         function build_url($parts) {
7222                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
7223         }
7224
7225         /**
7226          * Converts a (possibly) relative URL to a absolute one.
7227          *
7228          * @param string $url     Base URL (i.e. from where the document is)
7229          * @param string $rel_url Possibly relative URL in the document
7230          *
7231          * @return string Absolute URL
7232          */
7233         function rewrite_relative_url($url, $rel_url) {
7234                 if (strpos($rel_url, "://") !== false) {
7235                         return $rel_url;
7236                 } else if (strpos($rel_url, "/") === 0)
7237                 {
7238                         $parts = parse_url($url);
7239                         $parts['path'] = $rel_url;
7240
7241                         return build_url($parts);
7242
7243                 } else {
7244                         $parts = parse_url($url);
7245                         if (!isset($parts['path'])) {
7246                                 $parts['path'] = '/';
7247                         }
7248                         $dir = $parts['path'];
7249                         if (substr($dir, -1) !== '/') {
7250                                 $dir = dirname($parts['path']);
7251                                 $dir !== '/' && $dir .= '/';
7252                         }
7253                         $parts['path'] = $dir . $rel_url;
7254
7255                         return build_url($parts);
7256                 }
7257         }
7258
7259         function sphinx_search($query, $offset = 0, $limit = 30) {
7260                 $sphinxClient = new SphinxClient();
7261
7262                 $sphinxClient->SetServer('localhost', 9312);
7263                 $sphinxClient->SetConnectTimeout(1);
7264
7265                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
7266                         'feed_title' => 20));
7267
7268                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
7269                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
7270                 $sphinxClient->SetLimits($offset, $limit, 1000);
7271                 $sphinxClient->SetArrayResult(false);
7272                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
7273
7274                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
7275
7276                 $ids = array();
7277
7278                 if (is_array($result['matches'])) {
7279                         foreach (array_keys($result['matches']) as $int_id) {
7280                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
7281                                 array_push($ids, $ref_id);
7282                         }
7283                 }
7284
7285                 return $ids;
7286         }
7287
7288         function cleanup_tags($link, $days = 14, $limit = 1000) {
7289
7290                 if (DB_TYPE == "pgsql") {
7291                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
7292                 } else if (DB_TYPE == "mysql") {
7293                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
7294                 }
7295
7296                 $tags_deleted = 0;
7297
7298                 while ($limit > 0) {
7299                         $limit_part = 500;
7300
7301                         $query = "SELECT ttrss_tags.id AS id
7302                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
7303                                 WHERE post_int_id = int_id AND $interval_query AND
7304                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
7305
7306                         $result = db_query($link, $query);
7307
7308                         $ids = array();
7309
7310                         while ($line = db_fetch_assoc($result)) {
7311                                 array_push($ids, $line['id']);
7312                         }
7313
7314                         if (count($ids) > 0) {
7315                                 $ids = join(",", $ids);
7316                                 print ".";
7317
7318                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
7319                                 $tags_deleted += db_affected_rows($link, $tmp_result);
7320                         } else {
7321                                 break;
7322                         }
7323
7324                         $limit -= $limit_part;
7325                 }
7326
7327                 print "\n";
7328
7329                 return $tags_deleted;
7330         }
7331
7332         function feedlist_init_cat($link, $cat_id, $hidden = false) {
7333                 $obj = array();
7334                 $cat_id = (int) $cat_id;
7335
7336                 if ($cat_id > 0) {
7337                         $cat_unread = ccache_find($link, $cat_id, $_SESSION["uid"], true);
7338                 } else if ($cat_id == 0 || $cat_id == -2) {
7339                         $cat_unread = getCategoryUnread($link, $cat_id);
7340                 }
7341
7342                 $obj['id'] = 'CAT:' . $cat_id;
7343                 $obj['items'] = array();
7344                 $obj['name'] = getCategoryTitle($link, $cat_id);
7345                 $obj['type'] = 'feed';
7346                 $obj['unread'] = (int) $cat_unread;
7347                 $obj['hidden'] = $hidden;
7348                 $obj['bare_id'] = $cat_id;
7349
7350                 return $obj;
7351         }
7352
7353         function feedlist_init_feed($link, $feed_id, $title = false, $unread = false, $error = '', $updated = '') {
7354                 $obj = array();
7355                 $feed_id = (int) $feed_id;
7356
7357                 if (!$title)
7358                         $title = getFeedTitle($link, $feed_id, false);
7359
7360                 if ($unread === false)
7361                         $unread = getFeedUnread($link, $feed_id, false);
7362
7363                 $obj['id'] = 'FEED:' . $feed_id;
7364                 $obj['name'] = $title;
7365                 $obj['unread'] = (int) $unread;
7366                 $obj['type'] = 'feed';
7367                 $obj['error'] = $error;
7368                 $obj['updated'] = $updated;
7369                 $obj['icon'] = getFeedIcon($feed_id);
7370                 $obj['bare_id'] = $feed_id;
7371
7372                 return $obj;
7373         }
7374
7375
7376         function fetch_twitter_rss($link, $url, $owner_uid) {
7377                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
7378                         WHERE id = $owner_uid");
7379
7380                 $access_token = json_decode(db_fetch_result($result, 0, 'twitter_oauth'), true);
7381                 $url_escaped = db_escape_string($url);
7382
7383                 if ($access_token) {
7384
7385                         $tmhOAuth = new tmhOAuth(array(
7386                                 'consumer_key'    => CONSUMER_KEY,
7387                                 'consumer_secret' => CONSUMER_SECRET,
7388                                 'user_token' => $access_token['oauth_token'],
7389                                 'user_secret' => $access_token['oauth_token_secret'],
7390                         ));
7391
7392                         $code = $tmhOAuth->request('GET', $url);
7393
7394                         if ($code == 200) {
7395
7396                                 $content = $tmhOAuth->response['response'];
7397
7398                                 define('MAGPIE_CACHE_ON', false);
7399
7400                                 $rss = new MagpieRSS($content, MAGPIE_OUTPUT_ENCODING,
7401                                         MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING );
7402
7403                                 return $rss;
7404
7405                         } else {
7406
7407                                 db_query($link, "UPDATE ttrss_feeds
7408                                         SET last_error = 'OAuth authorization failed ($code).'
7409                                         WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7410                         }
7411
7412                 } else {
7413
7414                         db_query($link, "UPDATE ttrss_feeds
7415                                 SET last_error = 'OAuth information not found.'
7416                                 WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7417
7418                         return false;
7419                 }
7420         }
7421
7422         function print_user_stylesheet($link) {
7423                 $value = get_pref($link, 'USER_STYLESHEET');
7424
7425                 if ($value) {
7426                         print "<style type=\"text/css\">";
7427                         print str_replace("<br/>", "\n", $value);
7428                         print "</style>";
7429                 }
7430
7431         }
7432
7433         function rewrite_urls($line) {
7434                 global $url_regex;
7435
7436                 $urls = null;
7437
7438                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
7439                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
7440
7441                 return $result;
7442         }
7443
7444         function filter_to_sql($filter) {
7445                 $query = "";
7446
7447                 if (DB_TYPE == "pgsql")
7448                         $reg_qpart = "~";
7449                 else
7450                         $reg_qpart = "REGEXP";
7451
7452                 switch ($filter["type"]) {
7453                         case "title":
7454                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
7455                                         $filter['reg_exp'] . "')";
7456                                 break;
7457                         case "content":
7458                                 $query = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
7459                                         $filter['reg_exp'] . "')";
7460                                 break;
7461                         case "both":
7462                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
7463                                         $filter['reg_exp'] . "') OR LOWER(" .
7464                                         "ttrss_entries.content) $reg_qpart LOWER('" . $filter['reg_exp'] . "')";
7465                                 break;
7466                         case "tag":
7467                                 $query = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
7468                                         $filter['reg_exp'] . "')";
7469                                 break;
7470                         case "link":
7471                                 $query = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
7472                                         $filter['reg_exp'] . "')";
7473                                 break;
7474                         case "date":
7475
7476                                 if ($filter["filter_param"] == "before")
7477                                         $cmp_qpart = "<";
7478                                 else
7479                                         $cmp_qpart = ">=";
7480
7481                                 $timestamp = date("Y-m-d H:N:s", strtotime($filter["reg_exp"]));
7482                                 $query = "ttrss_entries.date_entered $cmp_qpart '$timestamp'";
7483                                 break;
7484                         case "author":
7485                                 $query = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
7486                                         $filter['reg_exp'] . "')";
7487                                 break;
7488                 }
7489
7490                 if ($filter["inverse"])
7491                         $query = "NOT ($query)";
7492
7493                 if ($query) {
7494                         if (DB_TYPE == "pgsql") {
7495                                 $query = " ($query) AND ttrss_entries.date_entered > NOW() - INTERVAL '14 days'";
7496                         } else {
7497                                 $query = " ($query) AND ttrss_entries.date_entered > DATE_SUB(NOW(), INTERVAL 14 DAY)";
7498                         }
7499                         $query .= " AND ";
7500                 }
7501
7502
7503                 return $query;
7504         }
7505
7506         // Status codes:
7507         // -1  - never connected
7508         // 0   - no data received
7509         // 1   - data received successfully
7510         // 2   - did not receive valid data
7511         // >10 - server error, code + 10 (e.g. 16 means server error 6)
7512
7513         function get_linked_feeds($link, $instance_id = false) {
7514                 if ($instance_id)
7515                         $instance_qpart = "id = '$instance_id' AND ";
7516                 else
7517                         $instance_qpart = "";
7518
7519                 if (DB_TYPE == "pgsql") {
7520                         $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'";
7521                 } else {
7522                         $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)";
7523                 }
7524
7525                 $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances
7526                         WHERE $instance_qpart $date_qpart ORDER BY last_connected");
7527
7528                 while ($line = db_fetch_assoc($result)) {
7529                         $id = $line['id'];
7530
7531                         _debug("Updating: " . $line['access_url'] . " ($id)");
7532
7533                         $fetch_url = $line['access_url'] . '/backend.php?op=fbexport';
7534                         $post_query = 'key=' . $line['access_key'];
7535
7536                         $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
7537
7538                         if ($feeds) {
7539                                 $feeds = json_decode($feeds, true);
7540
7541                                 if ($feeds) {
7542                                         if ($feeds['error']) {
7543                                                 $status = $feeds['error']['code'] + 10;
7544                                         } else {
7545                                                 $status = 1;
7546
7547                                                 if (count($feeds['feeds']) > 0) {
7548
7549                                                         db_query($link, "DELETE FROM ttrss_linked_feeds
7550                                                                 WHERE instance_id = '$id'");
7551
7552                                                         foreach ($feeds['feeds'] as $feed) {
7553                                                                 $feed_url = db_escape_string($feed['feed_url']);
7554                                                                 $title = db_escape_string($feed['title']);
7555                                                                 $subscribers = db_escape_string($feed['subscribers']);
7556                                                                 $site_url = db_escape_string($feed['site_url']);
7557
7558                                                                 db_query($link, "INSERT INTO ttrss_linked_feeds
7559                                                                         (feed_url, site_url, title, subscribers, instance_id, created, updated)
7560                                                                 VALUES
7561                                                                         ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())");
7562                                                         }
7563                                                 } else {
7564                                                         // received 0 feeds, this might indicate that
7565                                                         // the instance on the other hand is rebuilding feedbrowser cache
7566                                                         // we will try again later
7567
7568                                                         // TODO: maybe perform expiration based on updated here?
7569                                                 }
7570
7571                                                 _debug("Processed " . count($feeds['feeds']) . " feeds.");
7572                                         }
7573                                 } else {
7574                                         $status = 2;
7575                                 }
7576
7577                         } else {
7578                                 $status = 0;
7579                         }
7580
7581                         _debug("Status: $status");
7582
7583                         db_query($link, "UPDATE ttrss_linked_instances SET
7584                                 last_status_out = '$status', last_connected = NOW() WHERE id = '$id'");
7585
7586                 }
7587
7588         }
7589 ?>