functions.php

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