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