functions.php

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