include/rssfuncs.php

   1 <?php
   2         define('DAEMON_UPDATE_LOGIN_LIMIT', 30);
   3         define('DAEMON_FEED_LIMIT', 100);
   4         define('DAEMON_SLEEP_INTERVAL', 60);
   5
   6         function update_feedbrowser_cache($link) {
   7
   8                 $result = db_query($link, "SELECT feed_url, site_url, title, COUNT(id) AS subscribers
   9                         FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
  10                                 WHERE tf.feed_url = ttrss_feeds.feed_url
  11                                 AND (private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%'))
  12                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
  13
  14                 db_query($link, "BEGIN");
  15
  16                 db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
  17
  18                 $count = 0;
  19
  20                 while ($line = db_fetch_assoc($result)) {
  21                         $subscribers = db_escape_string($line["subscribers"]);
  22                         $feed_url = db_escape_string($line["feed_url"]);
  23                         $title = db_escape_string($line["title"]);
  24                         $site_url = db_escape_string($line["site_url"]);
  25
  26                         $tmp_result = db_query($link, "SELECT subscribers FROM
  27                                 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
  28
  29                         if (db_num_rows($tmp_result) == 0) {
  30
  31                                 db_query($link, "INSERT INTO ttrss_feedbrowser_cache
  32                                         (feed_url, site_url, title, subscribers) VALUES ('$feed_url',
  33                                                 '$site_url', '$title', '$subscribers')");
  34
  35                                 ++$count;
  36
  37                         }
  38
  39                 }
  40
  41                 db_query($link, "COMMIT");
  42
  43                 return $count;
  44
  45         }
  46
  47
  48         /**
  49          * Update a feed batch.
  50          * Used by daemons to update n feeds by run.
  51          * Only update feed needing a update, and not being processed
  52          * by another process.
  53          *
  54          * @param mixed $link Database link
  55          * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
  56          * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
  57          * @param boolean $debug Set to false to disable debug output. Default to true.
  58          * @return void
  59          */
  60         function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
  61                 // Process all other feeds using last_updated and interval parameters
  62
  63                 define('PREFS_NO_CACHE', true);
  64
  65                 // Test if the user has loggued in recently. If not, it does not update its feeds.
  66                 if (!SINGLE_USER_MODE && DAEMON_UPDATE_LOGIN_LIMIT > 0) {
  67                         if (DB_TYPE == "pgsql") {
  68                                 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
  69                         } else {
  70                                 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
  71                         }
  72                 } else {
  73                         $login_thresh_qpart = "";
  74                 }
  75
  76                 // Test if the feed need a update (update interval exceded).
  77                 if (DB_TYPE == "pgsql") {
  78                         $update_limit_qpart = "AND ((
  79                                         ttrss_feeds.update_interval = 0
  80                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
  81                                 ) OR (
  82                                         ttrss_feeds.update_interval > 0
  83                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
  84                                 ) OR ttrss_feeds.last_updated IS NULL
  85                                 OR last_updated = '1970-01-01 00:00:00')";
  86                 } else {
  87                         $update_limit_qpart = "AND ((
  88                                         ttrss_feeds.update_interval = 0
  89                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
  90                                 ) OR (
  91                                         ttrss_feeds.update_interval > 0
  92                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
  93                                 ) OR ttrss_feeds.last_updated IS NULL
  94                                 OR last_updated = '1970-01-01 00:00:00')";
  95                 }
  96
  97                 // Test if feed is currently being updated by another process.
  98                 if (DB_TYPE == "pgsql") {
  99                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '5 minutes')";
 100                 } else {
 101                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 5 MINUTE))";
 102                 }
 103
 104                 // Test if there is a limit to number of updated feeds
 105                 $query_limit = "";
 106                 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
 107
 108                 $random_qpart = sql_random_function();
 109
 110                 // We search for feed needing update.
 111                 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
 112                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
 113                                 ttrss_feeds.update_interval
 114                         FROM
 115                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
 116                         WHERE
 117                                 ttrss_feeds.owner_uid = ttrss_users.id
 118                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
 119                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
 120                                 $login_thresh_qpart $update_limit_qpart
 121                          $updstart_thresh_qpart
 122                         ORDER BY $random_qpart $query_limit");
 123
 124                 $user_prefs_cache = array();
 125
 126                 if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
 127
 128                 // Here is a little cache magic in order to minimize risk of double feed updates.
 129                 $feeds_to_update = array();
 130                 while ($line = db_fetch_assoc($result)) {
 131                         $feeds_to_update[$line['id']] = $line;
 132                 }
 133
 134                 // We update the feed last update started date before anything else.
 135                 // There is no lag due to feed contents downloads
 136                 // It prevent an other process to update the same feed.
 137                 $feed_ids = array_keys($feeds_to_update);
 138                 if($feed_ids) {
 139                         db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
 140                                 WHERE id IN (%s)", implode(',', $feed_ids)));
 141                 }
 142
 143                 expire_cached_files($debug);
 144                 expire_lock_files($debug);
 145
 146                 // For each feed, we call the feed update function.
 147                 while ($line = array_pop($feeds_to_update)) {
 148
 149                         if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
 150
 151                         update_rss_feed($link, $line["id"], true);
 152
 153                         sleep(1); // prevent flood (FIXME make this an option?)
 154                 }
 155
 156                 // Send feed digests by email if needed.
 157                 send_headlines_digests($link, $debug);
 158
 159         } // function update_daemon_common
 160
 161         // ignore_daemon is not used
 162         function update_rss_feed($link, $feed, $ignore_daemon = false, $no_cache = false,
 163                 $override_url = false) {
 164
 165                 require_once "lib/simplepie/simplepie.inc";
 166                 require_once "lib/magpierss/rss_fetch.inc";
 167                 require_once 'lib/magpierss/rss_utils.inc';
 168
 169                 $debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
 170
 171                 if ($debug_enabled) {
 172                         _debug("update_rss_feed: start");
 173                 }
 174
 175                 $result = db_query($link, "SELECT id,update_interval,auth_login,
 176                         feed_url,auth_pass,cache_images,update_method,last_updated,cache_content,
 177                         mark_unread_on_update, owner_uid, update_on_checksum_change,
 178                         pubsub_state
 179                         FROM ttrss_feeds WHERE id = '$feed'");
 180
 181                 if (db_num_rows($result) == 0) {
 182                         if ($debug_enabled) {
 183                                 _debug("update_rss_feed: feed $feed NOT FOUND/SKIPPED");
 184                         }
 185                         return false;
 186                 }
 187
 188                 $update_method = db_fetch_result($result, 0, "update_method");
 189                 $last_updated = db_fetch_result($result, 0, "last_updated");
 190                 $owner_uid = db_fetch_result($result, 0, "owner_uid");
 191                 $mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
 192                         0, "mark_unread_on_update"));
 193                 $update_on_checksum_change = sql_bool_to_bool(db_fetch_result($result,
 194                         0, "update_on_checksum_change"));
 195                 $pubsub_state = db_fetch_result($result, 0, "pubsub_state");
 196
 197                 db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
 198                         WHERE id = '$feed'");
 199
 200                 $auth_login = db_fetch_result($result, 0, "auth_login");
 201                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
 202
 203                 if ($update_method == 0)
 204                         $update_method = DEFAULT_UPDATE_METHOD + 1;
 205
 206                 // 1 - Magpie
 207                 // 2 - SimplePie
 208                 // 3 - Twitter OAuth
 209
 210                 if ($update_method == 2)
 211                         $use_simplepie = true;
 212                 else
 213                         $use_simplepie = false;
 214
 215                 if ($debug_enabled) {
 216                         _debug("update method: $update_method (feed setting: $update_method) (use simplepie: $use_simplepie)\n");
 217                 }
 218
 219                 if ($update_method == 1) {
 220                         $auth_login = urlencode($auth_login);
 221                         $auth_pass = urlencode($auth_pass);
 222                 }
 223
 224                 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
 225                 $cache_content = sql_bool_to_bool(db_fetch_result($result, 0, "cache_content"));
 226                 $fetch_url = db_fetch_result($result, 0, "feed_url");
 227
 228                 $feed = db_escape_string($feed);
 229
 230                 if ($auth_login && $auth_pass ){
 231                         $url_parts = array();
 232                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 233
 234                         if ($url_parts[1] && $url_parts[2]) {
 235                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 236                         }
 237
 238                 }
 239
 240                 if ($override_url)
 241                         $fetch_url = $override_url;
 242
 243                 if ($debug_enabled) {
 244                         _debug("update_rss_feed: fetching [$fetch_url]...");
 245                 }
 246
 247                 // Ignore cache if new feed or manual update.
 248                 $cache_age = (is_null($last_updated) || $last_updated == '1970-01-01 00:00:00') ?
 249                         -1 : get_feed_update_interval($link, $feed) * 60;
 250
 251                 if ($update_method == 1) {
 252
 253                         define('MAGPIE_CACHE_AGE', $cache_age);
 254                         define('MAGPIE_CACHE_ON', !$no_cache);
 255                         define('MAGPIE_FETCH_TIME_OUT', $no_cache ? 15 : 60);
 256                         define('MAGPIE_CACHE_DIR', CACHE_DIR . "/magpie");
 257
 258                         $rss = @fetch_rss($fetch_url);
 259                 } else {
 260                         $simplepie_cache_dir = CACHE_DIR . "/simplepie";
 261
 262                         if (!is_dir($simplepie_cache_dir)) {
 263                                 mkdir($simplepie_cache_dir);
 264                         }
 265
 266                         $rss = new SimplePie();
 267                         $rss->set_useragent(SELF_USER_AGENT);
 268                         $rss->set_timeout($no_cache ? 15 : 60);
 269                         $rss->set_feed_url($fetch_url);
 270                         $rss->set_output_encoding('UTF-8');
 271                         //$rss->force_feed(true);
 272
 273                         if ($debug_enabled) {
 274                                 _debug("feed update interval (sec): " .
 275                                         get_feed_update_interval($link, $feed)*60);
 276                         }
 277
 278                         $rss->enable_cache(!$no_cache);
 279
 280                         if (!$no_cache) {
 281                                 $rss->set_cache_location($simplepie_cache_dir);
 282                                 $rss->set_cache_duration($cache_age);
 283                         }
 284
 285                         $rss->init();
 286                 }
 287
 288 //              print_r($rss);
 289
 290                 if ($debug_enabled) {
 291                         _debug("update_rss_feed: fetch done, parsing...");
 292                 }
 293
 294                 $feed = db_escape_string($feed);
 295
 296                 if ($update_method == 2) {
 297                         $fetch_ok = !$rss->error();
 298                 } else {
 299                         $fetch_ok = !!$rss;
 300                 }
 301
 302                 if ($fetch_ok) {
 303
 304                         if ($debug_enabled) {
 305                                 _debug("update_rss_feed: processing feed data...");
 306                         }
 307
 308 //                      db_query($link, "BEGIN");
 309
 310                         if (DB_TYPE == "pgsql") {
 311                                 $favicon_interval_qpart = "favicon_last_checked < NOW() - INTERVAL '12 hour'";
 312                         } else {
 313                                 $favicon_interval_qpart = "favicon_last_checked < DATE_SUB(NOW(), INTERVAL 12 HOUR)";
 314                         }
 315
 316                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid,
 317                                 (favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
 318                                                 favicon_needs_check
 319                                 FROM ttrss_feeds WHERE id = '$feed'");
 320
 321                         $registered_title = db_fetch_result($result, 0, "title");
 322                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 323                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 324                         $favicon_needs_check = sql_bool_to_bool(db_fetch_result($result, 0,
 325                                 "favicon_needs_check"));
 326
 327                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 328
 329                         if ($use_simplepie) {
 330                                 $site_url = db_escape_string(trim($rss->get_link()));
 331                         } else {
 332                                 $site_url = db_escape_string(trim($rss->channel["link"]));
 333                         }
 334
 335                         // weird, weird Magpie
 336                         if (!$use_simplepie) {
 337                                 if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 338                         }
 339
 340                         $site_url = rewrite_relative_url($fetch_url, $site_url);
 341                         $site_url = substr($site_url, 0, 250);
 342
 343                         if ($debug_enabled) {
 344                                 _debug("update_rss_feed: checking favicon...");
 345                         }
 346
 347                         if ($favicon_needs_check) {
 348                                 check_feed_favicon($site_url, $feed, $link);
 349
 350                                 db_query($link, "UPDATE ttrss_feeds SET favicon_last_checked = NOW()
 351                                         WHERE id = '$feed'");
 352                         }
 353
 354                         if (!$registered_title || $registered_title == "[Unknown]") {
 355
 356                                 if ($use_simplepie) {
 357                                         $feed_title = db_escape_string($rss->get_title());
 358                                 } else {
 359                                         $feed_title = db_escape_string($rss->channel["title"]);
 360                                 }
 361
 362                                 if ($debug_enabled) {
 363                                         _debug("update_rss_feed: registering title: $feed_title");
 364                                 }
 365
 366                                 db_query($link, "UPDATE ttrss_feeds SET
 367                                         title = '$feed_title' WHERE id = '$feed'");
 368                         }
 369
 370                         if ($site_url && $orig_site_url != $site_url) {
 371                                 db_query($link, "UPDATE ttrss_feeds SET
 372                                         site_url = '$site_url' WHERE id = '$feed'");
 373                         }
 374
 375 //                      print "I: " . $rss->channel["image"]["url"];
 376
 377                         if (!$use_simplepie) {
 378                                 $icon_url = db_escape_string(trim($rss->image["url"]));
 379                         } else {
 380                                 $icon_url = db_escape_string(trim($rss->get_image_url()));
 381                         }
 382
 383                         $icon_url = rewrite_relative_url($fetch_url, $icon_url);
 384                         $icon_url = substr($icon_url, 0, 250);
 385
 386                         if ($icon_url && $orig_icon_url != $icon_url) {
 387                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 388                         }
 389
 390                         if ($debug_enabled) {
 391                                 _debug("update_rss_feed: loading filters & labels...");
 392                         }
 393
 394                         $filters = load_filters($link, $feed, $owner_uid);
 395                         $labels = get_all_labels($link, $owner_uid);
 396
 397                         if ($debug_enabled) {
 398                                 //print_r($filters);
 399                                 _debug("update_rss_feed: " . count($filters) . " filters loaded.");
 400                         }
 401
 402                         $filter_plugins = array();
 403
 404                         if (defined('_ARTICLE_FILTER_PLUGINS')) {
 405                                 foreach (explode(",", _ARTICLE_FILTER_PLUGINS) as $p) {
 406                                         $pclass = "filter_" . trim($p);
 407
 408                                         if (class_exists($pclass)) {
 409                                                 $plugin = new $pclass($link);
 410                                                 array_push($filter_plugins, $plugin);
 411                                         }
 412                                 }
 413                         }
 414
 415                         if ($debug_enabled) {
 416                                 _debug("update_rss_feed: " . count($filter_plugins) . " filter plugins loaded.");
 417                         }
 418
 419                         if ($use_simplepie) {
 420                                 $iterator = $rss->get_items();
 421                         } else {
 422                                 $iterator = $rss->items;
 423                                 if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
 424                                 if (!$iterator || !is_array($iterator)) $iterator = $rss;
 425                         }
 426
 427                         if (!is_array($iterator)) {
 428                                 /* db_query($link, "UPDATE ttrss_feeds
 429                                         SET last_error = 'Parse error: can\'t find any articles.'
 430                                         WHERE id = '$feed'"); */
 431
 432                                 // clear any errors and mark feed as updated if fetched okay
 433                                 // even if it's blank
 434
 435                                 if ($debug_enabled) {
 436                                         _debug("update_rss_feed: entry iterator is not an array, no articles?");
 437                                 }
 438
 439                                 db_query($link, "UPDATE ttrss_feeds
 440                                         SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 441
 442                                 return; // no articles
 443                         }
 444
 445                         if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
 446
 447                                 if ($debug_enabled) _debug("update_rss_feed: checking for PUSH hub...");
 448
 449                                 $feed_hub_url = false;
 450                                 if ($use_simplepie) {
 451                                         $links = $rss->get_links('hub');
 452
 453                                         if ($links && is_array($links)) {
 454                                                 foreach ($links as $l) {
 455                                                         $feed_hub_url = $l;
 456                                                         break;
 457                                                 }
 458                                         }
 459
 460                                 } else {
 461                                         $atom = $rss->channel['atom'];
 462
 463                                         if ($atom) {
 464                                                 if ($atom['link@rel'] == 'hub') {
 465                                                         $feed_hub_url = $atom['link@href'];
 466                                                 }
 467
 468                                                 if (!$feed_hub_url && $atom['link#'] > 1) {
 469                                                         for ($i = 2; $i <= $atom['link#']; $i++) {
 470                                                                 if ($atom["link#$i@rel"] == 'hub') {
 471                                                                         $feed_hub_url = $atom["link#$i@href"];
 472                                                                         break;
 473                                                                 }
 474                                                         }
 475                                                 }
 476                                         } else {
 477                                                 $feed_hub_url = $rss->channel['link_hub'];
 478                                         }
 479                                 }
 480
 481                                 if ($debug_enabled) _debug("update_rss_feed: feed hub url: $feed_hub_url");
 482
 483                                 if ($feed_hub_url && function_exists('curl_init') &&
 484                                         !ini_get("open_basedir")) {
 485
 486                                         require_once 'lib/pubsubhubbub/subscriber.php';
 487
 488                                         $callback_url = get_self_url_prefix() .
 489                                                 "/public.php?op=pubsub&id=$feed";
 490
 491                                         $s = new Subscriber($feed_hub_url, $callback_url);
 492
 493                                         $rc = $s->subscribe($fetch_url);
 494
 495                                         if ($debug_enabled)
 496                                                 _debug("update_rss_feed: feed hub url found, subscribe request sent.");
 497
 498                                         db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 1
 499                                                 WHERE id = '$feed'");
 500                                 }
 501                         }
 502
 503                         if ($debug_enabled) {
 504                                 _debug("update_rss_feed: processing articles...");
 505                         }
 506
 507                         foreach ($iterator as $item) {
 508                                 if ($_REQUEST['xdebug'] == 2) {
 509                                         print_r($item);
 510                                 }
 511
 512                                 if ($use_simplepie) {
 513                                         $entry_guid = $item->get_id();
 514                                         if (!$entry_guid) $entry_guid = $item->get_link();
 515                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
 516
 517                                 } else {
 518
 519                                         $entry_guid = $item["id"];
 520
 521                                         if (!$entry_guid) $entry_guid = $item["guid"];
 522                                         if (!$entry_guid) $entry_guid = $item["about"];
 523                                         if (!$entry_guid) $entry_guid = $item["link"];
 524                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
 525                                 }
 526
 527                                 if ($cache_content) {
 528                                         $entry_guid = "ccache:$entry_guid";
 529                                 }
 530
 531                                 if ($auth_login || $auth_pass) {
 532                                         $entry_guid = "auth,$owner_uid:$entry_guid";
 533                                 }
 534
 535                                 if ($debug_enabled) {
 536                                         _debug("update_rss_feed: guid $entry_guid");
 537                                 }
 538
 539                                 if (!$entry_guid) continue;
 540
 541                                 $entry_timestamp = "";
 542
 543                                 if ($use_simplepie) {
 544                                         $entry_timestamp = strtotime($item->get_date());
 545                                 } else {
 546                                         $rss_2_date = $item['pubdate'];
 547                                         $rss_1_date = $item['dc']['date'];
 548                                         $atom_date = $item['issued'];
 549                                         if (!$atom_date) $atom_date = $item['updated'];
 550
 551                                         if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 552                                         if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 553                                         if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 554
 555                                 }
 556
 557                                 if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
 558                                         $entry_timestamp = time();
 559                                         $no_orig_date = 'true';
 560                                 } else {
 561                                         $no_orig_date = 'false';
 562                                 }
 563
 564                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 565
 566                                 if ($debug_enabled) {
 567                                         _debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
 568                                 }
 569
 570                                 if ($use_simplepie) {
 571                                         $entry_title = $item->get_title();
 572                                 } else {
 573                                         $entry_title = trim(strip_tags($item["title"]));
 574                                 }
 575
 576                                 if ($use_simplepie) {
 577                                         $entry_link = $item->get_link();
 578                                 } else {
 579                                         // strange Magpie workaround
 580                                         $entry_link = $item["link_"];
 581                                         if (!$entry_link) $entry_link = $item["link"];
 582                                 }
 583
 584                                 $entry_link = rewrite_relative_url($site_url, $entry_link);
 585
 586                                 if ($debug_enabled) {
 587                                         _debug("update_rss_feed: title $entry_title");
 588                                         _debug("update_rss_feed: link $entry_link");
 589                                 }
 590
 591                                 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
 592
 593                                 $entry_link = strip_tags($entry_link);
 594
 595                                 if ($use_simplepie) {
 596                                         $entry_content = $item->get_content();
 597                                         if (!$entry_content) $entry_content = $item->get_description();
 598                                 } else {
 599                                         $entry_content = $item["content:escaped"];
 600
 601                                         if (!$entry_content) $entry_content = $item["content:encoded"];
 602                                         if (!$entry_content && is_array($entry_content)) $entry_content = $item["content"]["encoded"];
 603                                         if (!$entry_content) $entry_content = $item["content"];
 604
 605                                         if (is_array($entry_content)) $entry_content = $entry_content[0];
 606
 607                                         // Magpie bugs are getting ridiculous
 608                                         if (trim($entry_content) == "Array") $entry_content = false;
 609
 610                                         if (!$entry_content) $entry_content = $item["atom_content"];
 611                                         if (!$entry_content) $entry_content = $item["summary"];
 612
 613                                         if (!$entry_content ||
 614                                                 strlen($entry_content) < strlen($item["description"])) {
 615                                                         $entry_content = $item["description"];
 616                                         };
 617
 618                                         // WTF
 619                                         if (is_array($entry_content)) {
 620                                                 $entry_content = $entry_content["encoded"];
 621                                                 if (!$entry_content) $entry_content = $entry_content["escaped"];
 622                                         }
 623                                 }
 624
 625                                 if ($cache_images && is_writable(CACHE_DIR . '/images'))
 626                                         $entry_content = cache_images($entry_content, $site_url, $debug_enabled);
 627
 628                                 if ($_REQUEST["xdebug"] == 2) {
 629                                         print "update_rss_feed: content: ";
 630                                         print $entry_content;
 631                                         print "\n";
 632                                 }
 633
 634                                 $entry_content_unescaped = $entry_content;
 635                                 $entry_cached_content = "";
 636
 637                                 if ($use_simplepie) {
 638                                         $entry_comments = strip_tags($item->data["comments"]);
 639                                         if ($item->get_author()) {
 640                                                 $entry_author_item = $item->get_author();
 641                                                 $entry_author = $entry_author_item->get_name();
 642                                                 if (!$entry_author) $entry_author = $entry_author_item->get_email();
 643
 644                                                 $entry_author = db_escape_string($entry_author);
 645                                         }
 646                                 } else {
 647                                         $entry_comments = strip_tags($item["comments"]);
 648
 649                                         $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
 650
 651                                         if ($item['author']) {
 652
 653                                                 if (is_array($item['author'])) {
 654
 655                                                         if (!$entry_author) {
 656                                                                 $entry_author = db_escape_string(strip_tags($item['author']['name']));
 657                                                         }
 658
 659                                                         if (!$entry_author) {
 660                                                                 $entry_author = db_escape_string(strip_tags($item['author']['email']));
 661                                                         }
 662                                                 }
 663
 664                                                 if (!$entry_author) {
 665                                                         $entry_author = db_escape_string(strip_tags($item['author']));
 666                                                 }
 667                                         }
 668                                 }
 669
 670                                 if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
 671
 672                                 $entry_guid = db_escape_string(strip_tags($entry_guid));
 673                                 $entry_guid = mb_substr($entry_guid, 0, 250);
 674
 675                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 676                                         WHERE guid = '$entry_guid'");
 677
 678                                 $entry_content = db_escape_string($entry_content, false);
 679
 680                                 $entry_title = db_escape_string($entry_title);
 681                                 $entry_link = db_escape_string($entry_link);
 682                                 $entry_comments = mb_substr(db_escape_string($entry_comments), 0, 250);
 683                                 $entry_author = mb_substr($entry_author, 0, 250);
 684
 685                                 if ($use_simplepie) {
 686                                         $num_comments = 0; #FIXME#
 687                                 } else {
 688                                         $num_comments = db_escape_string($item["slash"]["comments"]);
 689                                 }
 690
 691                                 if (!$num_comments) $num_comments = 0;
 692
 693                                 if ($debug_enabled) {
 694                                         _debug("update_rss_feed: looking for tags [1]...");
 695                                 }
 696
 697                                 // parse <category> entries into tags
 698
 699                                 $additional_tags = array();
 700
 701                                 if ($use_simplepie) {
 702
 703                                         $additional_tags_src = $item->get_categories();
 704
 705                                         if (is_array($additional_tags_src)) {
 706                                                 foreach ($additional_tags_src as $tobj) {
 707                                                         array_push($additional_tags, $tobj->get_term());
 708                                                 }
 709                                         }
 710
 711                                         if ($debug_enabled) {
 712                                                 _debug("update_rss_feed: category tags:");
 713                                                 print_r($additional_tags);
 714                                         }
 715
 716                                 } else {
 717
 718                                         $t_ctr = $item['category#'];
 719
 720                                         if ($t_ctr == 0) {
 721                                                 $additional_tags = array();
 722                                         } else if ($t_ctr > 0) {
 723                                                 $additional_tags = array($item['category']);
 724
 725                                                 if ($item['category@term']) {
 726                                                         array_push($additional_tags, $item['category@term']);
 727                                                 }
 728
 729                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
 730                                                         if ($item["category#$i"]) {
 731                                                                 array_push($additional_tags, $item["category#$i"]);
 732                                                         }
 733
 734                                                         if ($item["category#$i@term"]) {
 735                                                                 array_push($additional_tags, $item["category#$i@term"]);
 736                                                         }
 737                                                 }
 738                                         }
 739
 740                                         // parse <dc:subject> elements
 741
 742                                         $t_ctr = $item['dc']['subject#'];
 743
 744                                         if ($t_ctr > 0) {
 745                                                 array_push($additional_tags, $item['dc']['subject']);
 746
 747                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
 748                                                         if ($item['dc']["subject#$i"]) {
 749                                                                 array_push($additional_tags, $item['dc']["subject#$i"]);
 750                                                         }
 751                                                 }
 752                                         }
 753                                 }
 754
 755                                 if ($debug_enabled) {
 756                                         _debug("update_rss_feed: looking for tags [2]...");
 757                                 }
 758
 759                                 /* taaaags */
 760                                 // <a href="..." rel="tag">Xorg</a>, //
 761
 762                                 $entry_tags = null;
 763
 764                                 preg_match_all("/<a.*?rel=['\"]tag['\"].*?\>([^<]+)<\/a>/i",
 765                                         $entry_content_unescaped, $entry_tags);
 766
 767                                 $entry_tags = $entry_tags[1];
 768
 769                                 $entry_tags = array_merge($entry_tags, $additional_tags);
 770                                 $entry_tags = array_unique($entry_tags);
 771
 772                                 for ($i = 0; $i < count($entry_tags); $i++)
 773                                         $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
 774
 775                                 if ($debug_enabled) {
 776                                         //_debug("update_rss_feed: unfiltered tags found:");
 777                                         //print_r($entry_tags);
 778                                 }
 779
 780                                 if ($debug_enabled) {
 781                                         _debug("update_rss_feed: done collecting data [TITLE:$entry_title]");
 782                                 }
 783
 784                                 // TODO: less memory-hungry implementation
 785                                 if (count($filter_plugins) > 0) {
 786                                         if ($debug_enabled) {
 787                                                 _debug("update_rss_feed: applying plugin filters...");
 788                                         }
 789
 790                                         $article = array("owner_uid" => $owner_uid,
 791                                                 "title" => $entry_title,
 792                                                 "content" => $entry_content,
 793                                                 "link" => $entry_link,
 794                                                 "tags" => $entry_tags,
 795                                                 "author" => $entry_author);
 796
 797                                         foreach ($filter_plugins as $plugin) {
 798                                                 $article = $plugin->filter_article($article);
 799                                         }
 800
 801                                         $entry_title = $article["title"];
 802                                         $entry_content = $article["content"];
 803                                         $entry_tags = $article["tags"];
 804                                         $entry_author = $article["author"];
 805                                 }
 806
 807                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 808
 809                                 db_query($link, "BEGIN");
 810
 811                                 if (db_num_rows($result) == 0) {
 812
 813                                         if ($debug_enabled) {
 814                                                 _debug("update_rss_feed: base guid not found");
 815                                         }
 816
 817                                         if ($cache_content) {
 818                                                 if ($debug_enabled) {
 819                                                         _debug("update_rss_feed: caching content (initial)...");
 820                                                 }
 821
 822                                                 $entry_cached_content = cache_content($link, $entry_link, $auth_login, $auth_pass);
 823
 824                                                 if ($cache_images && is_writable(CACHE_DIR . '/images'))
 825                                                         $entry_cached_content = cache_images($entry_cached_content, $site_url, $debug_enabled);
 826
 827                                                 $entry_cached_content = db_escape_string($entry_cached_content, false);
 828                                         }
 829
 830                                         // base post entry does not exist, create it
 831
 832                                         $result = db_query($link,
 833                                                 "INSERT INTO ttrss_entries
 834                                                         (title,
 835                                                         guid,
 836                                                         link,
 837                                                         updated,
 838                                                         content,
 839                                                         content_hash,
 840                                                         cached_content,
 841                                                         no_orig_date,
 842                                                         date_updated,
 843                                                         date_entered,
 844                                                         comments,
 845                                                         num_comments,
 846                                                         author)
 847                                                 VALUES
 848                                                         ('$entry_title',
 849                                                         '$entry_guid',
 850                                                         '$entry_link',
 851                                                         '$entry_timestamp_fmt',
 852                                                         '$entry_content',
 853                                                         '$content_hash',
 854                                                         '$entry_cached_content',
 855                                                         $no_orig_date,
 856                                                         NOW(),
 857                                                         NOW(),
 858                                                         '$entry_comments',
 859                                                         '$num_comments',
 860                                                         '$entry_author')");
 861
 862                                         $article_labels = array();
 863
 864                                 } else {
 865                                         // we keep encountering the entry in feeds, so we need to
 866                                         // update date_updated column so that we don't get horrible
 867                                         // dupes when the entry gets purged and reinserted again e.g.
 868                                         // in the case of SLOW SLOW OMG SLOW updating feeds
 869
 870                                         $base_entry_id = db_fetch_result($result, 0, "id");
 871
 872                                         db_query($link, "UPDATE ttrss_entries SET date_updated = NOW()
 873                                                 WHERE id = '$base_entry_id'");
 874
 875                                         $article_labels = get_article_labels($link, $base_entry_id, $owner_uid);
 876                                 }
 877
 878                                 // now it should exist, if not - bad luck then
 879
 880                                 $result = db_query($link, "SELECT
 881                                                 id,content_hash,no_orig_date,title,
 882                                                 ".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
 883                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
 884                                                 num_comments, cached_content
 885                                         FROM
 886                                                 ttrss_entries
 887                                         WHERE guid = '$entry_guid'");
 888
 889                                 $entry_ref_id = 0;
 890                                 $entry_int_id = 0;
 891
 892                                 if (db_num_rows($result) == 1) {
 893
 894                                         if ($debug_enabled) {
 895                                                 _debug("update_rss_feed: base guid found, checking for user record");
 896                                         }
 897
 898                                         // this will be used below in update handler
 899                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 900                                         $orig_title = db_fetch_result($result, 0, "title");
 901                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
 902                                         $orig_cached_content = trim(db_fetch_result($result, 0, "cached_content"));
 903                                         $orig_date_updated = strtotime(db_fetch_result($result,
 904                                                 0, "date_updated"));
 905
 906                                         $ref_id = db_fetch_result($result, 0, "id");
 907                                         $entry_ref_id = $ref_id;
 908
 909                                         // check for user post link to main table
 910
 911                                         // do we allow duplicate posts with same GUID in different feeds?
 912                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
 913                                                 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
 914                                         } else {
 915                                                 $dupcheck_qpart = "";
 916                                         }
 917
 918                                         /* Collect article tags here so we could filter by them: */
 919
 920                                         $article_filters = get_article_filters($filters, $entry_title,
 921                                                 $entry_content, $entry_link, $entry_timestamp, $entry_author,
 922                                                 $entry_tags);
 923
 924                                         if ($debug_enabled) {
 925                                                 _debug("update_rss_feed: article filters: ");
 926                                                 if (count($article_filters) != 0) {
 927                                                         print_r($article_filters);
 928                                                 }
 929                                         }
 930
 931                                         if (find_article_filter($article_filters, "filter")) {
 932                                                 db_query($link, "COMMIT"); // close transaction in progress
 933                                                 continue;
 934                                         }
 935
 936                                         $score = calculate_article_score($article_filters);
 937
 938                                         if ($debug_enabled) {
 939                                                 _debug("update_rss_feed: initial score: $score");
 940                                         }
 941
 942                                         $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
 943                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
 944                                                         $dupcheck_qpart";
 945
 946 //                                      if ($_REQUEST["xdebug"]) print "$query\n";
 947
 948                                         $result = db_query($link, $query);
 949
 950                                         // okay it doesn't exist - create user entry
 951                                         if (db_num_rows($result) == 0) {
 952
 953                                                 if ($debug_enabled) {
 954                                                         _debug("update_rss_feed: user record not found, creating...");
 955                                                 }
 956
 957                                                 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
 958                                                         $unread = 'true';
 959                                                         $last_read_qpart = 'NULL';
 960                                                 } else {
 961                                                         $unread = 'false';
 962                                                         $last_read_qpart = 'NOW()';
 963                                                 }
 964
 965                                                 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
 966                                                         $marked = 'true';
 967                                                 } else {
 968                                                         $marked = 'false';
 969                                                 }
 970
 971                                                 if (find_article_filter($article_filters, 'publish')) {
 972                                                         $published = 'true';
 973                                                 } else {
 974                                                         $published = 'false';
 975                                                 }
 976
 977                                                 // N-grams
 978
 979                                                 if (DB_TYPE == "pgsql" and defined('_NGRAM_TITLE_DUPLICATE_THRESHOLD')) {
 980
 981                                                         $result = db_query($link, "SELECT COUNT(*) AS similar FROM
 982                                                                         ttrss_entries,ttrss_user_entries
 983                                                                 WHERE ref_id = id AND updated >= NOW() - INTERVAL '7 day'
 984                                                                         AND similarity(title, '$entry_title') >= "._NGRAM_TITLE_DUPLICATE_THRESHOLD."
 985                                                                         AND owner_uid = $owner_uid");
 986
 987                                                         $ngram_similar = db_fetch_result($result, 0, "similar");
 988
 989                                                         if ($debug_enabled) {
 990                                                                 _debug("update_rss_feed: N-gram similar results: $ngram_similar");
 991                                                         }
 992
 993                                                         if ($ngram_similar > 0) {
 994                                                                 $unread = 'false';
 995                                                         }
 996                                                 }
 997
 998                                                 $result = db_query($link,
 999                                                         "INSERT INTO ttrss_user_entries
1000                                                                 (ref_id, owner_uid, feed_id, unread, last_read, marked,
1001                                                                         published, score, tag_cache, label_cache, uuid)
1002                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
1003                                                                 $last_read_qpart, $marked, $published, '$score', '', '', '')");
1004
1005                                                 if (PUBSUBHUBBUB_HUB && $published == 'true') {
1006                                                         $rss_link = get_self_url_prefix() .
1007                                                                 "/public.php?op=rss&id=-2&key=" .
1008                                                                 get_feed_access_key($link, -2, false, $owner_uid);
1009
1010                                                         $p = new Publisher(PUBSUBHUBBUB_HUB);
1011
1012                                                         $pubsub_result = $p->publish_update($rss_link);
1013                                                 }
1014
1015                                                 $result = db_query($link,
1016                                                         "SELECT int_id FROM ttrss_user_entries WHERE
1017                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
1018                                                                 feed_id = '$feed' LIMIT 1");
1019
1020                                                 if (db_num_rows($result) == 1) {
1021                                                         $entry_int_id = db_fetch_result($result, 0, "int_id");
1022                                                 }
1023                                         } else {
1024                                                 if ($debug_enabled) {
1025                                                         _debug("update_rss_feed: user record FOUND");
1026                                                 }
1027
1028                                                 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
1029                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
1030                                         }
1031
1032                                         if ($debug_enabled) {
1033                                                 _debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
1034                                         }
1035
1036                                         $post_needs_update = false;
1037                                         $update_insignificant = false;
1038                                         $cached_content_needs_update = false;
1039
1040                                         if ($orig_num_comments != $num_comments) {
1041                                                 $post_needs_update = true;
1042                                                 $update_insignificant = true;
1043                                         }
1044
1045                                         if ($content_hash != $orig_content_hash) {
1046                                                 $post_needs_update = true;
1047                                                 $update_insignificant = false;
1048                                                 $cached_content_needs_update = true;
1049                                         }
1050
1051                                         if ($cache_content) {
1052                                                 if ($debug_enabled) {
1053                                                         _debug("update_rss_feed: caching content because original checksum changed...");
1054                                                 }
1055
1056                                                 $entry_cached_content = cache_content($link, $entry_link, $auth_login, $auth_pass);
1057
1058                                                 if ($entry_cached_content) {
1059                                                         if ($cache_images && is_writable(CACHE_DIR . '/images'))
1060                                                                 $entry_cached_content = cache_images($entry_cached_content, $site_url, $debug_enabled);
1061
1062                                                         $entry_cached_content = db_escape_string($entry_cached_content, false);
1063                                                         $post_needs_update = true;
1064                                                 } else {
1065                                                         $entry_cached_content = db_escape_string($orig_cached_content);
1066                                                 }
1067                                         } else {
1068                                                 $entry_cached_content = db_escape_string($orig_cached_content);
1069                                         }
1070
1071                                         if (db_escape_string($orig_title) != $entry_title) {
1072                                                 $post_needs_update = true;
1073                                                 $update_insignificant = false;
1074                                         }
1075
1076                                         // if post needs update, update it and mark all user entries
1077                                         // linking to this post as updated
1078                                         if ($post_needs_update) {
1079
1080                                                 if (defined('DAEMON_EXTENDED_DEBUG')) {
1081                                                         _debug("update_rss_feed: post $entry_guid needs update...");
1082                                                 }
1083
1084 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
1085
1086                                                 db_query($link, "UPDATE ttrss_entries
1087                                                         SET title = '$entry_title', content = '$entry_content',
1088                                                                 content_hash = '$content_hash',
1089                                                                 cached_content = '$entry_cached_content',
1090                                                                 updated = '$entry_timestamp_fmt',
1091                                                                 num_comments = '$num_comments'
1092                                                         WHERE id = '$ref_id'");
1093
1094                                                 if (!$update_insignificant) {
1095                                                         if ($mark_unread_on_update) {
1096                                                                 db_query($link, "UPDATE ttrss_user_entries
1097                                                                         SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
1098                                                         } else if ($update_on_checksum_change) {
1099                                                                 db_query($link, "UPDATE ttrss_user_entries
1100                                                                         SET last_read = null WHERE ref_id = '$ref_id'
1101                                                                                 AND unread = false");
1102                                                         }
1103                                                 }
1104                                         }
1105                                 }
1106
1107                                 db_query($link, "COMMIT");
1108
1109                                 if ($debug_enabled) {
1110                                         _debug("update_rss_feed: assigning labels...");
1111                                 }
1112
1113                                 assign_article_to_label_filters($link, $entry_ref_id, $article_filters,
1114                                         $owner_uid, $article_labels);
1115
1116                                 if ($debug_enabled) {
1117                                         _debug("update_rss_feed: looking for enclosures...");
1118                                 }
1119
1120                                 // enclosures
1121
1122                                 $enclosures = array();
1123
1124                                 if ($use_simplepie) {
1125                                         $encs = $item->get_enclosures();
1126
1127                                         if (is_array($encs)) {
1128                                                 foreach ($encs as $e) {
1129                                                         $e_item = array(
1130                                                                 $e->link, $e->type, $e->length);
1131
1132                                                         array_push($enclosures, $e_item);
1133                                                 }
1134                                         }
1135
1136                                 } else {
1137                                         // <enclosure>
1138
1139                                         $e_ctr = $item['enclosure#'];
1140
1141                                         if ($e_ctr > 0) {
1142                                                 $e_item = array($item['enclosure@url'],
1143                                                         $item['enclosure@type'],
1144                                                         $item['enclosure@length']);
1145
1146                                                 array_push($enclosures, $e_item);
1147
1148                                                 for ($i = 0; $i <= $e_ctr; $i++ ) {
1149
1150                                                         if ($item["enclosure#$i@url"]) {
1151                                                                 $e_item = array($item["enclosure#$i@url"],
1152                                                                         $item["enclosure#$i@type"],
1153                                                                         $item["enclosure#$i@length"]);
1154                                                                 array_push($enclosures, $e_item);
1155                                                         }
1156                                                 }
1157                                         }
1158
1159                                         // <media:content>
1160                                         // can there be many of those? yes -fox
1161
1162                                         $m_ctr = $item['media']['content#'];
1163
1164                                         if ($m_ctr > 0) {
1165                                                 $e_item = array($item['media']['content@url'],
1166                                                         $item['media']['content@medium'],
1167                                                         $item['media']['content@length']);
1168
1169                                                 array_push($enclosures, $e_item);
1170
1171                                                 for ($i = 0; $i <= $m_ctr; $i++ ) {
1172
1173                                                         if ($item["media"]["content#$i@url"]) {
1174                                                                 $e_item = array($item["media"]["content#$i@url"],
1175                                                                         $item["media"]["content#$i@medium"],
1176                                                                         $item["media"]["content#$i@length"]);
1177                                                                 array_push($enclosures, $e_item);
1178                                                         }
1179                                                 }
1180
1181                                         }
1182                                 }
1183
1184
1185                                 if ($debug_enabled) {
1186                                         _debug("update_rss_feed: article enclosures:");
1187                                         print_r($enclosures);
1188                                 }
1189
1190                                 db_query($link, "BEGIN");
1191
1192                                 foreach ($enclosures as $enc) {
1193                                         $enc_url = db_escape_string($enc[0]);
1194                                         $enc_type = db_escape_string($enc[1]);
1195                                         $enc_dur = db_escape_string($enc[2]);
1196
1197                                         $result = db_query($link, "SELECT id FROM ttrss_enclosures
1198                                                 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1199
1200                                         if (db_num_rows($result) == 0) {
1201                                                 db_query($link, "INSERT INTO ttrss_enclosures
1202                                                         (content_url, content_type, title, duration, post_id) VALUES
1203                                                         ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
1204                                         }
1205                                 }
1206
1207                                 db_query($link, "COMMIT");
1208
1209                                 // check for manual tags (we have to do it here since they're loaded from filters)
1210
1211                                 foreach ($article_filters as $f) {
1212                                         if ($f["type"] == "tag") {
1213
1214                                                 $manual_tags = trim_array(explode(",", $f["param"]));
1215
1216                                                 foreach ($manual_tags as $tag) {
1217                                                         if (tag_is_valid($tag)) {
1218                                                                 array_push($entry_tags, $tag);
1219                                                         }
1220                                                 }
1221                                         }
1222                                 }
1223
1224                                 // Skip boring tags
1225
1226                                 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref($link,
1227                                         'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1228
1229                                 $filtered_tags = array();
1230                                 $tags_to_cache = array();
1231
1232                                 if ($entry_tags && is_array($entry_tags)) {
1233                                         foreach ($entry_tags as $tag) {
1234                                                 if (array_search($tag, $boring_tags) === false) {
1235                                                         array_push($filtered_tags, $tag);
1236                                                 }
1237                                         }
1238                                 }
1239
1240                                 $filtered_tags = array_unique($filtered_tags);
1241
1242                                 if ($debug_enabled) {
1243                                         _debug("update_rss_feed: filtered article tags:");
1244                                         print_r($filtered_tags);
1245                                 }
1246
1247                                 // Save article tags in the database
1248
1249                                 if (count($filtered_tags) > 0) {
1250
1251                                         db_query($link, "BEGIN");
1252
1253                                         foreach ($filtered_tags as $tag) {
1254
1255                                                 $tag = sanitize_tag($tag);
1256                                                 $tag = db_escape_string($tag);
1257
1258                                                 if (!tag_is_valid($tag)) continue;
1259
1260                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
1261                                                         WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1262                                                         owner_uid = '$owner_uid' LIMIT 1");
1263
1264                                                         if ($result && db_num_rows($result) == 0) {
1265
1266                                                                 db_query($link, "INSERT INTO ttrss_tags
1267                                                                         (owner_uid,tag_name,post_int_id)
1268                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
1269                                                         }
1270
1271                                                 array_push($tags_to_cache, $tag);
1272                                         }
1273
1274                                         /* update the cache */
1275
1276                                         $tags_to_cache = array_unique($tags_to_cache);
1277
1278                                         $tags_str = db_escape_string(join(",", $tags_to_cache));
1279
1280                                         db_query($link, "UPDATE ttrss_user_entries
1281                                                 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1282                                                 AND owner_uid = $owner_uid");
1283
1284                                         db_query($link, "COMMIT");
1285                                 }
1286
1287                                 if (get_pref($link, "AUTO_ASSIGN_LABELS", $owner_uid, false)) {
1288                                         if ($debug_enabled) {
1289                                                 _debug("update_rss_feed: auto-assigning labels...");
1290                                         }
1291
1292                                         foreach ($labels as $label) {
1293                                                 $caption = $label["caption"];
1294
1295                                                 if (preg_match("/\b$caption\b/i", "$tags_str " . strip_tags($entry_content) . " $entry_title")) {
1296                                                         if (!labels_contains_caption($article_labels, $caption)) {
1297                                                                 label_add_article($link, $entry_ref_id, $caption, $owner_uid);
1298                                                         }
1299                                                 }
1300                                         }
1301                                 }
1302
1303                                 if ($debug_enabled) {
1304                                         _debug("update_rss_feed: article processed");
1305                                 }
1306                         }
1307
1308                         if (!$last_updated) {
1309                                 if ($debug_enabled) {
1310                                         _debug("update_rss_feed: new feed, catching it up...");
1311                                 }
1312                                 catchup_feed($link, $feed, false, $owner_uid);
1313                         }
1314
1315                         if ($debug_enabled) {
1316                                 _debug("purging feed...");
1317                         }
1318
1319                         purge_feed($link, $feed, 0, $debug_enabled);
1320
1321                         db_query($link, "UPDATE ttrss_feeds
1322                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1323
1324 //                      db_query($link, "COMMIT");
1325
1326                 } else {
1327
1328                         if ($use_simplepie) {
1329                                 $error_msg = mb_substr($rss->error(), 0, 250);
1330                         } else {
1331                                 $error_msg = mb_substr(magpie_error(), 0, 250);
1332                         }
1333
1334                         if ($debug_enabled) {
1335                                 _debug("update_rss_feed: error fetching feed: $error_msg");
1336                         }
1337
1338                         $error_msg = db_escape_string($error_msg);
1339
1340                         db_query($link,
1341                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1342                                         last_updated = NOW() WHERE id = '$feed'");
1343                 }
1344
1345                 if ($use_simplepie) {
1346                         unset($rss);
1347                 }
1348
1349                 if ($debug_enabled) {
1350                         _debug("update_rss_feed: done");
1351                 }
1352
1353         }
1354
1355         function cache_images($html, $site_url, $debug) {
1356                 $cache_dir = CACHE_DIR . "/images";
1357
1358                 libxml_use_internal_errors(true);
1359
1360                 $charset_hack = '<head>
1361                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
1362                 </head>';
1363
1364                 $doc = new DOMDocument();
1365                 $doc->loadHTML($charset_hack . $html);
1366                 $xpath = new DOMXPath($doc);
1367
1368                 $entries = $xpath->query('(//img[@src])');
1369
1370                 foreach ($entries as $entry) {
1371                         if ($entry->hasAttribute('src')) {
1372                                 $src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
1373
1374                                 $local_filename = CACHE_DIR . "/images/" . sha1($src) . ".png";
1375
1376                                 if ($debug) _debug("cache_images: downloading: $src to $local_filename");
1377
1378                                 if (!file_exists($local_filename)) {
1379                                         $file_content = fetch_file_contents($src);
1380
1381                                         if ($file_content && strlen($file_content) > 1024) {
1382                                                 file_put_contents($local_filename, $file_content);
1383                                         }
1384                                 }
1385
1386                                 if (file_exists($local_filename)) {
1387                                         $entry->setAttribute('src', SELF_URL_PATH . '/image.php?url=' .
1388                                                 base64_encode($src));
1389                                 }
1390                         }
1391                 }
1392
1393                 $node = $doc->getElementsByTagName('body')->item(0);
1394
1395                 return $doc->saveXML($node, LIBXML_NOEMPTYTAG);
1396         }
1397
1398         function expire_lock_files($debug) {
1399                 if ($debug) _debug("Removing old lock files...");
1400
1401                 $num_deleted = 0;
1402
1403                 if (is_writable(LOCK_DIRECTORY)) {
1404                         $files = glob(LOCK_DIRECTORY . "/*.lock");
1405
1406                         if ($files) {
1407                                 foreach ($files as $file) {
1408                                         if (!file_is_locked($file) && time() - filemtime($file) > 86400*2) {
1409                                                 unlink($file);
1410                                                 ++$num_deleted;
1411                                         }
1412                                 }
1413                         }
1414                 }
1415
1416                 if ($debug) _debug("Removed $num_deleted files.");
1417         }
1418
1419         function expire_cached_files($debug) {
1420                 foreach (array("magpie", "simplepie", "images", "export") as $dir) {
1421                         $cache_dir = CACHE_DIR . "/$dir";
1422
1423                         if ($debug) _debug("Expiring $cache_dir");
1424
1425                         $num_deleted = 0;
1426
1427                         if (is_writable($cache_dir)) {
1428                                 $files = glob("$cache_dir/*");
1429
1430                                 if ($files) {
1431                                         foreach ($files as $file) {
1432                                                 if (time() - filemtime($file) > 86400*7) {
1433                                                         unlink($file);
1434
1435                                                         ++$num_deleted;
1436                                                 }
1437                                         }
1438                                 }
1439                         }
1440
1441                         if ($debug) _debug("Removed $num_deleted files.");
1442                 }
1443         }
1444
1445         /**
1446         * Source: http://www.php.net/manual/en/function.parse-url.php#104527
1447         * Returns the url query as associative array
1448         *
1449         * @param    string    query
1450         * @return    array    params
1451         */
1452         function convertUrlQuery($query) {
1453                 $queryParts = explode('&', $query);
1454
1455                 $params = array();
1456
1457                 foreach ($queryParts as $param) {
1458                         $item = explode('=', $param);
1459                         $params[$item[0]] = $item[1];
1460                 }
1461
1462                 return $params;
1463         }
1464
1465         function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1466                 $matches = array();
1467
1468                 foreach ($filters as $filter) {
1469                         $match_any_rule = $filter["match_any_rule"];
1470                         $filter_match = false;
1471
1472                         foreach ($filter["rules"] as $rule) {
1473                                 $match = false;
1474                                 $reg_exp = $rule["reg_exp"];
1475
1476                                 if (!$reg_exp)
1477                                         continue;
1478
1479                                 switch ($rule["type"]) {
1480                                 case "title":
1481                                         $match = @preg_match("/$reg_exp/i", $title);
1482                                         break;
1483                                 case "content":
1484                                         // we don't need to deal with multiline regexps
1485                                         $content = preg_replace("/[\r\n\t]/", "", $content);
1486
1487                                         $match = @preg_match("/$reg_exp/i", $content);
1488                                         break;
1489                                 case "both":
1490                                         // we don't need to deal with multiline regexps
1491                                         $content = preg_replace("/[\r\n\t]/", "", $content);
1492
1493                                         $match = (@preg_match("/$reg_exp/i", $title) || @preg_match("/$reg_exp/i", $content));
1494                                         break;
1495                                 case "link":
1496                                         $match = @preg_match("/$reg_exp/i", $link);
1497                                         break;
1498                                 case "author":
1499                                         $match = @preg_match("/$reg_exp/i", $author);
1500                                         break;
1501                                 case "tag":
1502                                         $tag_string = join(",", $tags);
1503                                         $match = @preg_match("/$reg_exp/i", $tag_string);
1504                                         break;
1505                                 }
1506
1507                                 if ($match_any_rule) {
1508                                         if ($match) {
1509                                                 $filter_match = true;
1510                                                 break;
1511                                         }
1512                                 } else {
1513                                         $filter_match = $match;
1514                                         if (!$match) {
1515                                                 break;
1516                                         }
1517                                 }
1518                         }
1519
1520                         if ($filter_match) {
1521                                 foreach ($filter["actions"] AS $action) {
1522                                         array_push($matches, $action);
1523                                 }
1524                         }
1525                 }
1526
1527                 return $matches;
1528         }
1529
1530         function find_article_filter($filters, $filter_name) {
1531                 foreach ($filters as $f) {
1532                         if ($f["type"] == $filter_name) {
1533                                 return $f;
1534                         };
1535                 }
1536                 return false;
1537         }
1538
1539         function find_article_filters($filters, $filter_name) {
1540                 $results = array();
1541
1542                 foreach ($filters as $f) {
1543                         if ($f["type"] == $filter_name) {
1544                                 array_push($results, $f);
1545                         };
1546                 }
1547                 return $results;
1548         }
1549
1550         function calculate_article_score($filters) {
1551                 $score = 0;
1552
1553                 foreach ($filters as $f) {
1554                         if ($f["type"] == "score") {
1555                                 $score += $f["param"];
1556                         };
1557                 }
1558                 return $score;
1559         }
1560
1561         function labels_contains_caption($labels, $caption) {
1562                 foreach ($labels as $label) {
1563                         if ($label[1] == $caption) {
1564                                 return true;
1565                         }
1566                 }
1567
1568                 return false;
1569         }
1570
1571         function assign_article_to_label_filters($link, $id, $filters, $owner_uid, $article_labels) {
1572                 foreach ($filters as $f) {
1573                         if ($f["type"] == "label") {
1574                                 if (!labels_contains_caption($article_labels, $f["param"])) {
1575                                         label_add_article($link, $id, $f["param"], $owner_uid);
1576                                 }
1577                         }
1578                 }
1579         }
1580
1581         function cache_content($link, $url, $login, $pass) {
1582
1583                 $content = fetch_file_contents($url, $login, $pass);
1584
1585                 if ($content) {
1586                         $doc = new DOMDocument();
1587                         @$doc->loadHTML($content);
1588                         $xpath = new DOMXPath($doc);
1589
1590                         $node = $doc->getElementsByTagName('body')->item(0);
1591
1592                         if ($node) {
1593                                 $content = $doc->saveXML($node, LIBXML_NOEMPTYTAG);
1594
1595                                 return $content;
1596                         }
1597                 }
1598
1599                 return "";
1600         }
1601 ?>