functions.php

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