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[tt-rss.git] / include / rssfuncs.php
1 <?php
2 define_default('DAEMON_UPDATE_LOGIN_LIMIT', 30);
3 define_default('DAEMON_FEED_LIMIT', 500);
4 define_default('DAEMON_SLEEP_INTERVAL', 120);
5 define_default('_MIN_CACHE_IMAGE_SIZE', 1024);
6
7 function update_feedbrowser_cache() {
8
9 $result = db_query("SELECT feed_url, site_url, title, COUNT(id) AS subscribers
10 FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
11 WHERE tf.feed_url = ttrss_feeds.feed_url
12 AND (private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%'))
13 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
14
15 db_query("BEGIN");
16
17 db_query("DELETE FROM ttrss_feedbrowser_cache");
18
19 $count = 0;
20
21 while ($line = db_fetch_assoc($result)) {
22 $subscribers = db_escape_string($line["subscribers"]);
23 $feed_url = db_escape_string($line["feed_url"]);
24 $title = db_escape_string($line["title"]);
25 $site_url = db_escape_string($line["site_url"]);
26
27 $tmp_result = db_query("SELECT subscribers FROM
28 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
29
30 if (db_num_rows($tmp_result) == 0) {
31
32 db_query("INSERT INTO ttrss_feedbrowser_cache
33 (feed_url, site_url, title, subscribers) VALUES ('$feed_url',
34 '$site_url', '$title', '$subscribers')");
35
36 ++$count;
37
38 }
39
40 }
41
42 db_query("COMMIT");
43
44 return $count;
45
46 }
47
48
49 /**
50 * Update a feed batch.
51 * Used by daemons to update n feeds by run.
52 * Only update feed needing a update, and not being processed
53 * by another process.
54 *
55 * @param mixed $link Database link
56 * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
57 * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
58 * @param boolean $debug Set to false to disable debug output. Default to true.
59 * @return void
60 */
61 function update_daemon_common($limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
62 // Process all other feeds using last_updated and interval parameters
63
64 $schema_version = get_schema_version();
65
66 if ($schema_version != SCHEMA_VERSION) {
67 die("Schema version is wrong, please upgrade the database.\n");
68 }
69
70 define('PREFS_NO_CACHE', true);
71
72 // Test if the user has loggued in recently. If not, it does not update its feeds.
73 if (!SINGLE_USER_MODE && DAEMON_UPDATE_LOGIN_LIMIT > 0) {
74 if (DB_TYPE == "pgsql") {
75 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
76 } else {
77 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
78 }
79 } else {
80 $login_thresh_qpart = "";
81 }
82
83 // Test if the feed need a update (update interval exceeded).
84 if (DB_TYPE == "pgsql") {
85 $update_limit_qpart = "AND ((
86 ttrss_feeds.update_interval = 0
87 AND ttrss_user_prefs.value != '-1'
88 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
89 ) OR (
90 ttrss_feeds.update_interval > 0
91 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
92 ) OR (ttrss_feeds.last_updated IS NULL
93 AND ttrss_user_prefs.value != '-1')
94 OR (last_updated = '1970-01-01 00:00:00'
95 AND ttrss_user_prefs.value != '-1'))";
96 } else {
97 $update_limit_qpart = "AND ((
98 ttrss_feeds.update_interval = 0
99 AND ttrss_user_prefs.value != '-1'
100 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
101 ) OR (
102 ttrss_feeds.update_interval > 0
103 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
104 ) OR (ttrss_feeds.last_updated IS NULL
105 AND ttrss_user_prefs.value != '-1')
106 OR (last_updated = '1970-01-01 00:00:00'
107 AND ttrss_user_prefs.value != '-1'))";
108 }
109
110 // Test if feed is currently being updated by another process.
111 if (DB_TYPE == "pgsql") {
112 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '10 minutes')";
113 } else {
114 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 10 MINUTE))";
115 }
116
117 // Test if there is a limit to number of updated feeds
118 $query_limit = "";
119 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
120
121 $query = "SELECT DISTINCT ttrss_feeds.feed_url, ttrss_feeds.last_updated
122 FROM
123 ttrss_feeds, ttrss_users, ttrss_user_prefs
124 WHERE
125 ttrss_feeds.owner_uid = ttrss_users.id
126 AND ttrss_user_prefs.profile IS NULL
127 AND ttrss_users.id = ttrss_user_prefs.owner_uid
128 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
129 $login_thresh_qpart $update_limit_qpart
130 $updstart_thresh_qpart
131 ORDER BY last_updated $query_limit";
132
133 // We search for feed needing update.
134 $result = db_query($query);
135
136 if($debug) _debug(sprintf("Scheduled %d feeds to update...", db_num_rows($result)));
137
138 // Here is a little cache magic in order to minimize risk of double feed updates.
139 $feeds_to_update = array();
140 while ($line = db_fetch_assoc($result)) {
141 array_push($feeds_to_update, db_escape_string($line['feed_url']));
142 }
143
144 // We update the feed last update started date before anything else.
145 // There is no lag due to feed contents downloads
146 // It prevent an other process to update the same feed.
147
148 if(count($feeds_to_update) > 0) {
149 $feeds_quoted = array();
150
151 foreach ($feeds_to_update as $feed) {
152 array_push($feeds_quoted, "'" . db_escape_string($feed) . "'");
153 }
154
155 db_query(sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
156 WHERE feed_url IN (%s)", implode(',', $feeds_quoted)));
157 }
158
159 $nf = 0;
160
161 // For each feed, we call the feed update function.
162 foreach ($feeds_to_update as $feed) {
163 if($debug) _debug("Base feed: $feed");
164
165 //update_rss_feed($line["id"], true);
166
167 // since we have the data cached, we can deal with other feeds with the same url
168
169 $tmp_result = db_query("SELECT DISTINCT ttrss_feeds.id,last_updated,ttrss_feeds.owner_uid
170 FROM ttrss_feeds, ttrss_users, ttrss_user_prefs WHERE
171 ttrss_user_prefs.owner_uid = ttrss_feeds.owner_uid AND
172 ttrss_users.id = ttrss_user_prefs.owner_uid AND
173 ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL' AND
174 ttrss_user_prefs.profile IS NULL AND
175 feed_url = '".db_escape_string($feed)."' AND
176 (ttrss_feeds.update_interval > 0 OR
177 ttrss_user_prefs.value != '-1')
178 $login_thresh_qpart
179 ORDER BY ttrss_feeds.id $query_limit");
180
181 if (db_num_rows($tmp_result) > 0) {
182 $rss = false;
183
184 while ($tline = db_fetch_assoc($tmp_result)) {
185 if($debug) _debug(" => " . $tline["last_updated"] . ", " . $tline["id"] . " " . $tline["owner_uid"]);
186
187 $rss = update_rss_feed($tline["id"], true, false);
188 _debug_suppress(false);
189 ++$nf;
190 }
191 }
192 }
193
194 require_once "digest.php";
195
196 // Send feed digests by email if needed.
197 send_headlines_digests($debug);
198
199 return $nf;
200
201 } // function update_daemon_common
202
203 // ignore_daemon is not used
204 function update_rss_feed($feed, $ignore_daemon = false, $no_cache = false, $rss = false) {
205
206 $debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
207
208 _debug_suppress(!$debug_enabled);
209 _debug("start", $debug_enabled);
210
211 $result = db_query("SELECT id,update_interval,auth_login,
212 feed_url,auth_pass,cache_images,
213 mark_unread_on_update, owner_uid,
214 pubsub_state, auth_pass_encrypted,
215 (SELECT max(date_entered) FROM
216 ttrss_entries, ttrss_user_entries where ref_id = id AND feed_id = '$feed') AS last_article_timestamp
217 FROM ttrss_feeds WHERE id = '$feed'");
218
219 if (db_num_rows($result) == 0) {
220 _debug("feed $feed NOT FOUND/SKIPPED", $debug_enabled);
221 return false;
222 }
223
224 $last_article_timestamp = @strtotime(db_fetch_result($result, 0, "last_article_timestamp"));
225
226 if (defined('_DISABLE_HTTP_304'))
227 $last_article_timestamp = 0;
228
229 $owner_uid = db_fetch_result($result, 0, "owner_uid");
230 $mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
231 0, "mark_unread_on_update"));
232 $pubsub_state = db_fetch_result($result, 0, "pubsub_state");
233 $auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result,
234 0, "auth_pass_encrypted"));
235
236 db_query("UPDATE ttrss_feeds SET last_update_started = NOW()
237 WHERE id = '$feed'");
238
239 $auth_login = db_fetch_result($result, 0, "auth_login");
240 $auth_pass = db_fetch_result($result, 0, "auth_pass");
241
242 if ($auth_pass_encrypted) {
243 require_once "crypt.php";
244 $auth_pass = decrypt_string($auth_pass);
245 }
246
247 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
248 $fetch_url = db_fetch_result($result, 0, "feed_url");
249
250 $feed = db_escape_string($feed);
251
252 $date_feed_processed = date('Y-m-d H:i');
253
254 $cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url) . ".xml";
255
256 $pluginhost = new PluginHost();
257 $pluginhost->set_debug($debug_enabled);
258 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
259
260 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
261 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
262 $pluginhost->load_data();
263
264 if ($rss && is_object($rss) && get_class($rss) == "FeedParser") {
265 _debug("using previously initialized parser object");
266 } else {
267 $rss_hash = false;
268
269 $force_refetch = isset($_REQUEST["force_refetch"]);
270
271 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FETCH_FEED) as $plugin) {
272 $feed_data = $plugin->hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, $last_article_timestamp, $auth_login, $auth_pass);
273 }
274
275 // try cache
276 if (!$feed_data &&
277 file_exists($cache_filename) &&
278 is_readable($cache_filename) &&
279 !$auth_login && !$auth_pass &&
280 filemtime($cache_filename) > time() - 30) {
281
282 _debug("using local cache [$cache_filename].", $debug_enabled);
283
284 @$feed_data = file_get_contents($cache_filename);
285
286 if ($feed_data) {
287 $rss_hash = sha1($feed_data);
288 }
289
290 } else {
291 _debug("local cache will not be used for this feed", $debug_enabled);
292 }
293
294 // fetch feed from source
295 if (!$feed_data) {
296 _debug("fetching [$fetch_url]...", $debug_enabled);
297 _debug("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $last_article_timestamp), $debug_enabled);
298
299 $feed_data = fetch_file_contents($fetch_url, false,
300 $auth_login, $auth_pass, false,
301 $no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
302 $force_refetch ? 0 : $last_article_timestamp);
303
304 global $fetch_curl_used;
305
306 if (!$fetch_curl_used) {
307 $tmp = @gzdecode($feed_data);
308
309 if ($tmp) $feed_data = $tmp;
310 }
311
312 $feed_data = trim($feed_data);
313
314 _debug("fetch done.", $debug_enabled);
315
316 /* if ($feed_data) {
317 $error = verify_feed_xml($feed_data);
318
319 if ($error) {
320 _debug("error verifying XML, code: " . $error->code, $debug_enabled);
321
322 if ($error->code == 26) {
323 _debug("got error 26, trying to decode entities...", $debug_enabled);
324
325 $feed_data = html_entity_decode($feed_data, ENT_COMPAT, 'UTF-8');
326
327 $error = verify_feed_xml($feed_data);
328
329 if ($error) $feed_data = '';
330 }
331 }
332 } */
333
334 // cache vanilla feed data for re-use
335 if ($feed_data && !$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/simplepie")) {
336 $new_rss_hash = sha1($feed_data);
337
338 if ($new_rss_hash != $rss_hash) {
339 _debug("saving $cache_filename", $debug_enabled);
340 @file_put_contents($cache_filename, $feed_data);
341 }
342 }
343 }
344
345 if (!$feed_data) {
346 global $fetch_last_error;
347 global $fetch_last_error_code;
348
349 _debug("unable to fetch: $fetch_last_error [$fetch_last_error_code]", $debug_enabled);
350
351 $error_escaped = '';
352
353 // If-Modified-Since
354 if ($fetch_last_error_code != 304) {
355 $error_escaped = db_escape_string($fetch_last_error);
356 } else {
357 _debug("source claims data not modified, nothing to do.", $debug_enabled);
358 }
359
360 db_query(
361 "UPDATE ttrss_feeds SET last_error = '$error_escaped',
362 last_updated = NOW() WHERE id = '$feed'");
363
364 return;
365 }
366 }
367
368 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_FETCHED) as $plugin) {
369 $feed_data = $plugin->hook_feed_fetched($feed_data, $fetch_url, $owner_uid, $feed);
370 }
371
372 // set last update to now so if anything *simplepie* crashes later we won't be
373 // continuously failing on the same feed
374 //db_query("UPDATE ttrss_feeds SET last_updated = NOW() WHERE id = '$feed'");
375
376 if (!$rss) {
377 $rss = new FeedParser($feed_data);
378 $rss->init();
379 }
380
381 if (DETECT_ARTICLE_LANGUAGE) {
382 require_once "lib/languagedetect/LanguageDetect.php";
383
384 $lang = new Text_LanguageDetect();
385 $lang->setNameMode(2);
386 }
387
388 // print_r($rss);
389
390 $feed = db_escape_string($feed);
391
392 if (!$rss->error()) {
393
394 // We use local pluginhost here because we need to load different per-user feed plugins
395 $pluginhost->run_hooks(PluginHost::HOOK_FEED_PARSED, "hook_feed_parsed", $rss);
396
397 _debug("processing feed data...", $debug_enabled);
398
399 // db_query("BEGIN");
400
401 if (DB_TYPE == "pgsql") {
402 $favicon_interval_qpart = "favicon_last_checked < NOW() - INTERVAL '12 hour'";
403 } else {
404 $favicon_interval_qpart = "favicon_last_checked < DATE_SUB(NOW(), INTERVAL 12 HOUR)";
405 }
406
407 $result = db_query("SELECT title,site_url,owner_uid,favicon_avg_color,
408 (favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
409 favicon_needs_check
410 FROM ttrss_feeds WHERE id = '$feed'");
411
412 $registered_title = db_fetch_result($result, 0, "title");
413 $orig_site_url = db_fetch_result($result, 0, "site_url");
414 $favicon_needs_check = sql_bool_to_bool(db_fetch_result($result, 0,
415 "favicon_needs_check"));
416 $favicon_avg_color = db_fetch_result($result, 0, "favicon_avg_color");
417
418 $owner_uid = db_fetch_result($result, 0, "owner_uid");
419
420 $site_url = db_escape_string(mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245));
421
422 _debug("site_url: $site_url", $debug_enabled);
423 _debug("feed_title: " . $rss->get_title(), $debug_enabled);
424
425 if ($favicon_needs_check || $force_refetch) {
426
427 /* terrible hack: if we crash on floicon shit here, we won't check
428 * the icon avgcolor again (unless the icon got updated) */
429
430 $favicon_file = ICONS_DIR . "/$feed.ico";
431 $favicon_modified = @filemtime($favicon_file);
432
433 _debug("checking favicon...", $debug_enabled);
434
435 check_feed_favicon($site_url, $feed);
436 $favicon_modified_new = @filemtime($favicon_file);
437
438 if ($favicon_modified_new > $favicon_modified)
439 $favicon_avg_color = '';
440
441 if (file_exists($favicon_file) && function_exists("imagecreatefromstring") && $favicon_avg_color == '') {
442 require_once "colors.php";
443
444 db_query("UPDATE ttrss_feeds SET favicon_avg_color = 'fail' WHERE
445 id = '$feed'");
446
447 $favicon_color = db_escape_string(
448 calculate_avg_color($favicon_file));
449
450 $favicon_colorstring = ",favicon_avg_color = '".$favicon_color."'";
451 } else if ($favicon_avg_color == 'fail') {
452 _debug("floicon failed on this file, not trying to recalculate avg color", $debug_enabled);
453 }
454
455 db_query("UPDATE ttrss_feeds SET favicon_last_checked = NOW()
456 $favicon_colorstring
457 WHERE id = '$feed'");
458 }
459
460 if (!$registered_title || $registered_title == "[Unknown]") {
461
462 $feed_title = db_escape_string($rss->get_title());
463
464 if ($feed_title) {
465 _debug("registering title: $feed_title", $debug_enabled);
466
467 db_query("UPDATE ttrss_feeds SET
468 title = '$feed_title' WHERE id = '$feed'");
469 }
470 }
471
472 if ($site_url && $orig_site_url != $site_url) {
473 db_query("UPDATE ttrss_feeds SET
474 site_url = '$site_url' WHERE id = '$feed'");
475 }
476
477 _debug("loading filters & labels...", $debug_enabled);
478
479 $filters = load_filters($feed, $owner_uid);
480 $labels = get_all_labels($owner_uid);
481
482 _debug("" . count($filters) . " filters loaded.", $debug_enabled);
483
484 $items = $rss->get_items();
485
486 if (!is_array($items)) {
487 _debug("no articles found.", $debug_enabled);
488
489 db_query("UPDATE ttrss_feeds
490 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
491
492 return; // no articles
493 }
494
495 if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
496
497 _debug("checking for PUSH hub...", $debug_enabled);
498
499 $feed_hub_url = false;
500
501 $links = $rss->get_links('hub');
502
503 if ($links && is_array($links)) {
504 foreach ($links as $l) {
505 $feed_hub_url = $l;
506 break;
507 }
508 }
509
510 _debug("feed hub url: $feed_hub_url", $debug_enabled);
511
512 $feed_self_url = $fetch_url;
513
514 $links = $rss->get_links('self');
515
516 if ($links && is_array($links)) {
517 foreach ($links as $l) {
518 $feed_self_url = $l;
519 break;
520 }
521 }
522
523 _debug("feed self url = $feed_self_url");
524
525 if ($feed_hub_url && $feed_self_url && function_exists('curl_init') &&
526 !ini_get("open_basedir")) {
527
528 require_once 'lib/pubsubhubbub/subscriber.php';
529
530 $callback_url = get_self_url_prefix() .
531 "/public.php?op=pubsub&id=$feed";
532
533 $s = new Subscriber($feed_hub_url, $callback_url);
534
535 $rc = $s->subscribe($feed_self_url);
536
537 _debug("feed hub url found, subscribe request sent. [rc=$rc]", $debug_enabled);
538
539 db_query("UPDATE ttrss_feeds SET pubsub_state = 1
540 WHERE id = '$feed'");
541 }
542 }
543
544 _debug("processing articles...", $debug_enabled);
545
546 foreach ($items as $item) {
547 if ($_REQUEST['xdebug'] == 3) {
548 print_r($item);
549 }
550
551 $entry_guid = $item->get_id();
552 if (!$entry_guid) $entry_guid = $item->get_link();
553 if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
554
555 _debug("f_guid $entry_guid", $debug_enabled);
556
557 if (!$entry_guid) continue;
558
559 $entry_guid = "$owner_uid,$entry_guid";
560
561 $entry_guid_hashed = db_escape_string('SHA1:' . sha1($entry_guid));
562
563 _debug("guid $entry_guid / $entry_guid_hashed", $debug_enabled);
564
565 $entry_timestamp = "";
566
567 $entry_timestamp = $item->get_date();
568
569 _debug("orig date: " . $item->get_date(), $debug_enabled);
570
571 if ($entry_timestamp == -1 || !$entry_timestamp || $entry_timestamp > time()) {
572 $entry_timestamp = time();
573 }
574
575 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
576
577 _debug("date $entry_timestamp [$entry_timestamp_fmt]", $debug_enabled);
578
579 // $entry_title = html_entity_decode($item->get_title(), ENT_COMPAT, 'UTF-8');
580 // $entry_title = decode_numeric_entities($entry_title);
581 $entry_title = $item->get_title();
582
583 $entry_link = rewrite_relative_url($site_url, $item->get_link());
584
585 _debug("title $entry_title", $debug_enabled);
586 _debug("link $entry_link", $debug_enabled);
587
588 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
589
590 $entry_content = $item->get_content();
591 if (!$entry_content) $entry_content = $item->get_description();
592
593 if ($_REQUEST["xdebug"] == 2) {
594 print "content: ";
595 print $entry_content;
596 print "\n";
597 }
598
599 $entry_language = "";
600
601 if (DETECT_ARTICLE_LANGUAGE) {
602 $entry_language = $lang->detect($entry_title . " " . $entry_content, 1);
603
604 if (count($entry_language) > 0) {
605 $entry_language = array_keys($entry_language);
606
607 // the fuck?
608 if (is_array($entry_language))
609 $entry_language = "";
610 else
611 $entry_language = db_escape_string(substr($entry_language[0], 0, 2));
612
613 _debug("detected language: $entry_language", $debug_enabled);
614 } else {
615 $entry_language = "";
616 }
617 }
618
619 $entry_comments = $item->get_comments_url();
620 $entry_author = $item->get_author();
621
622 $entry_guid = db_escape_string(mb_substr($entry_guid, 0, 245));
623
624 $entry_comments = db_escape_string(mb_substr(trim($entry_comments), 0, 245));
625 $entry_author = db_escape_string(mb_substr(trim($entry_author), 0, 245));
626
627 $num_comments = (int) $item->get_comments_count();
628
629 _debug("author $entry_author", $debug_enabled);
630 _debug("num_comments: $num_comments", $debug_enabled);
631 _debug("looking for tags...", $debug_enabled);
632
633 // parse <category> entries into tags
634
635 $additional_tags = array();
636
637 $additional_tags_src = $item->get_categories();
638
639 if (is_array($additional_tags_src)) {
640 foreach ($additional_tags_src as $tobj) {
641 array_push($additional_tags, $tobj);
642 }
643 }
644
645 $entry_tags = array_unique($additional_tags);
646
647 for ($i = 0; $i < count($entry_tags); $i++)
648 $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
649
650 _debug("tags found: " . join(",", $entry_tags), $debug_enabled);
651
652 _debug("done collecting data.", $debug_enabled);
653
654 // TODO: less memory-hungry implementation
655
656 _debug("applying plugin filters..", $debug_enabled);
657
658 // FIXME not sure if owner_uid is a good idea here, we may have a base entry without user entry (?)
659 $result = db_query("SELECT plugin_data,title,content,link,tag_cache,author FROM ttrss_entries, ttrss_user_entries
660 WHERE ref_id = id AND (guid = '".db_escape_string($entry_guid)."' OR guid = '$entry_guid_hashed') AND owner_uid = $owner_uid");
661
662 if (db_num_rows($result) != 0) {
663 $entry_plugin_data = db_fetch_result($result, 0, "plugin_data");
664 $stored_article = array("title" => db_fetch_result($result, 0, "title"),
665 "content" => db_fetch_result($result, 0, "content"),
666 "link" => db_fetch_result($result, 0, "link"),
667 "tags" => explode(",", db_fetch_result($result, 0, "tag_cache")),
668 "author" => db_fetch_result($result, 0, "author"));
669 } else {
670 $entry_plugin_data = "";
671 $stored_article = array();
672 }
673
674 $article = array("owner_uid" => $owner_uid, // read only
675 "guid" => $entry_guid, // read only
676 "title" => $entry_title,
677 "content" => $entry_content,
678 "link" => $entry_link,
679 "tags" => $entry_tags,
680 "plugin_data" => $entry_plugin_data,
681 "author" => $entry_author,
682 "stored" => $stored_article,
683 "feed" => array("id" => $feed,
684 "fetch_url" => $fetch_url,
685 "site_url" => $site_url)
686 );
687
688 foreach ($pluginhost->get_hooks(PluginHost::HOOK_ARTICLE_FILTER) as $plugin) {
689 $article = $plugin->hook_article_filter($article);
690
691 $article["stored"] = array("title" => $article["title"],
692 "content" => $article["content"],
693 "link" => $article["link"],
694 "tags" => $article["tags"],
695 "author" => $article["author"]);
696 }
697
698 $entry_tags = $article["tags"];
699 $entry_guid = db_escape_string($entry_guid);
700 $entry_title = db_escape_string($article["title"]);
701 $entry_author = db_escape_string($article["author"]);
702 $entry_link = db_escape_string($article["link"]);
703 $entry_plugin_data = db_escape_string($article["plugin_data"]);
704 $entry_content = $article["content"]; // escaped below
705
706 _debug("plugin data: $entry_plugin_data", $debug_enabled);
707
708 if ($cache_images && is_writable(CACHE_DIR . '/images'))
709 cache_images($entry_content, $site_url, $debug_enabled);
710
711 $entry_content = db_escape_string($entry_content, false);
712
713 $content_hash = "SHA1:" . sha1($entry_content);
714
715 db_query("BEGIN");
716
717 $result = db_query("SELECT id FROM ttrss_entries
718 WHERE (guid = '$entry_guid' OR guid = '$entry_guid_hashed')");
719
720 if (db_num_rows($result) == 0) {
721
722 _debug("base guid [$entry_guid] not found", $debug_enabled);
723
724 // base post entry does not exist, create it
725
726 $result = db_query(
727 "INSERT INTO ttrss_entries
728 (title,
729 guid,
730 link,
731 updated,
732 content,
733 content_hash,
734 no_orig_date,
735 date_updated,
736 date_entered,
737 comments,
738 num_comments,
739 plugin_data,
740 lang,
741 author)
742 VALUES
743 ('$entry_title',
744 '$entry_guid_hashed',
745 '$entry_link',
746 '$entry_timestamp_fmt',
747 '$entry_content',
748 '$content_hash',
749 false,
750 NOW(),
751 '$date_feed_processed',
752 '$entry_comments',
753 '$num_comments',
754 '$entry_plugin_data',
755 '$entry_language',
756 '$entry_author')");
757
758 $article_labels = array();
759
760 } else {
761 // we keep encountering the entry in feeds, so we need to
762 // update date_updated column so that we don't get horrible
763 // dupes when the entry gets purged and reinserted again e.g.
764 // in the case of SLOW SLOW OMG SLOW updating feeds
765
766 $base_entry_id = db_fetch_result($result, 0, "id");
767
768 db_query("UPDATE ttrss_entries SET date_updated = NOW()
769 WHERE id = '$base_entry_id'");
770
771 $article_labels = get_article_labels($base_entry_id, $owner_uid);
772 }
773
774 // now it should exist, if not - bad luck then
775
776 $result = db_query("SELECT
777 id,content_hash,title,plugin_data,guid,
778 num_comments
779 FROM
780 ttrss_entries
781 WHERE guid = '$entry_guid' OR guid = '$entry_guid_hashed'");
782
783 $entry_ref_id = 0;
784 $entry_int_id = 0;
785
786 if (db_num_rows($result) == 1) {
787
788 _debug("base guid found, checking for user record", $debug_enabled);
789
790 // this will be used below in update handler
791 $orig_content_hash = db_fetch_result($result, 0, "content_hash");
792 $orig_title = db_fetch_result($result, 0, "title");
793 $orig_num_comments = db_fetch_result($result, 0, "num_comments");
794 $orig_plugin_data = db_fetch_result($result, 0, "plugin_data");
795
796 $ref_id = db_fetch_result($result, 0, "id");
797 $entry_ref_id = $ref_id;
798
799 /* $stored_guid = db_fetch_result($result, 0, "guid");
800 if ($stored_guid != $entry_guid_hashed) {
801 if ($debug_enabled) _debug("upgrading compat guid to hashed one", $debug_enabled);
802
803 db_query("UPDATE ttrss_entries SET guid = '$entry_guid_hashed' WHERE
804 id = '$ref_id'");
805 } */
806
807 // check for user post link to main table
808
809 // do we allow duplicate posts with same GUID in different feeds?
810 if (get_pref("ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
811 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
812 } else {
813 $dupcheck_qpart = "";
814 }
815
816 /* Collect article tags here so we could filter by them: */
817
818 $article_filters = get_article_filters($filters, $entry_title,
819 $entry_content, $entry_link, $entry_timestamp, $entry_author,
820 $entry_tags);
821
822 if ($debug_enabled) {
823 _debug("article filters: ", $debug_enabled);
824 if (count($article_filters) != 0) {
825 print_r($article_filters);
826 }
827 }
828
829 if (find_article_filter($article_filters, "filter")) {
830 db_query("COMMIT"); // close transaction in progress
831 continue;
832 }
833
834 $score = calculate_article_score($article_filters);
835
836 _debug("initial score: $score", $debug_enabled);
837
838 $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
839 ref_id = '$ref_id' AND owner_uid = '$owner_uid'
840 $dupcheck_qpart";
841
842 // if ($_REQUEST["xdebug"]) print "$query\n";
843
844 $result = db_query($query);
845
846 // okay it doesn't exist - create user entry
847 if (db_num_rows($result) == 0) {
848
849 _debug("user record not found, creating...", $debug_enabled);
850
851 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
852 $unread = 'true';
853 $last_read_qpart = 'NULL';
854 } else {
855 $unread = 'false';
856 $last_read_qpart = 'NOW()';
857 }
858
859 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
860 $marked = 'true';
861 } else {
862 $marked = 'false';
863 }
864
865 if (find_article_filter($article_filters, 'publish')) {
866 $published = 'true';
867 } else {
868 $published = 'false';
869 }
870
871 // N-grams
872
873 if (DB_TYPE == "pgsql" and defined('_NGRAM_TITLE_DUPLICATE_THRESHOLD')) {
874
875 $result = db_query("SELECT COUNT(*) AS similar FROM
876 ttrss_entries,ttrss_user_entries
877 WHERE ref_id = id AND updated >= NOW() - INTERVAL '7 day'
878 AND similarity(title, '$entry_title') >= "._NGRAM_TITLE_DUPLICATE_THRESHOLD."
879 AND owner_uid = $owner_uid");
880
881 $ngram_similar = db_fetch_result($result, 0, "similar");
882
883 _debug("N-gram similar results: $ngram_similar", $debug_enabled);
884
885 if ($ngram_similar > 0) {
886 $unread = 'false';
887 }
888 }
889
890 $last_marked = ($marked == 'true') ? 'NOW()' : 'NULL';
891 $last_published = ($published == 'true') ? 'NOW()' : 'NULL';
892
893 $result = db_query(
894 "INSERT INTO ttrss_user_entries
895 (ref_id, owner_uid, feed_id, unread, last_read, marked,
896 published, score, tag_cache, label_cache, uuid,
897 last_marked, last_published)
898 VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
899 $last_read_qpart, $marked, $published, '$score', '', '',
900 '', $last_marked, $last_published)");
901
902 if (PUBSUBHUBBUB_HUB && $published == 'true') {
903 $rss_link = get_self_url_prefix() .
904 "/public.php?op=rss&id=-2&key=" .
905 get_feed_access_key(-2, false, $owner_uid);
906
907 $p = new Publisher(PUBSUBHUBBUB_HUB);
908
909 /* $pubsub_result = */ $p->publish_update($rss_link);
910 }
911
912 $result = db_query(
913 "SELECT int_id FROM ttrss_user_entries WHERE
914 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
915 feed_id = '$feed' LIMIT 1");
916
917 if (db_num_rows($result) == 1) {
918 $entry_int_id = db_fetch_result($result, 0, "int_id");
919 }
920 } else {
921 _debug("user record FOUND", $debug_enabled);
922
923 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
924 $entry_int_id = db_fetch_result($result, 0, "int_id");
925 }
926
927 _debug("RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
928
929 $post_needs_update = false;
930 $update_insignificant = false;
931
932 if ($orig_num_comments != $num_comments) {
933 $post_needs_update = true;
934 $update_insignificant = true;
935 }
936
937 if ($entry_plugin_data != $orig_plugin_data) {
938 $post_needs_update = true;
939 $update_insignificant = true;
940 }
941
942 if ($content_hash != $orig_content_hash) {
943 $post_needs_update = true;
944 $update_insignificant = false;
945 }
946
947 if (db_escape_string($orig_title) != $entry_title) {
948 $post_needs_update = true;
949 $update_insignificant = false;
950 }
951
952 // if post needs update, update it and mark all user entries
953 // linking to this post as updated
954 if ($post_needs_update) {
955
956 if (defined('DAEMON_EXTENDED_DEBUG')) {
957 _debug("post $entry_guid_hashed needs update...", $debug_enabled);
958 }
959
960 // print "<!-- post $orig_title needs update : $post_needs_update -->";
961
962 db_query("UPDATE ttrss_entries
963 SET title = '$entry_title', content = '$entry_content',
964 content_hash = '$content_hash',
965 updated = '$entry_timestamp_fmt',
966 num_comments = '$num_comments',
967 plugin_data = '$entry_plugin_data'
968 WHERE id = '$ref_id'");
969
970 if (!$update_insignificant) {
971 if ($mark_unread_on_update) {
972 db_query("UPDATE ttrss_user_entries
973 SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
974 }
975 }
976 }
977 }
978
979 db_query("COMMIT");
980
981 _debug("assigning labels...", $debug_enabled);
982
983 assign_article_to_label_filters($entry_ref_id, $article_filters,
984 $owner_uid, $article_labels);
985
986 _debug("looking for enclosures...", $debug_enabled);
987
988 // enclosures
989
990 $enclosures = array();
991
992 $encs = $item->get_enclosures();
993
994 if (is_array($encs)) {
995 foreach ($encs as $e) {
996 $e_item = array(
997 $e->link, $e->type, $e->length, $e->title, $e->width, $e->height);
998 array_push($enclosures, $e_item);
999 }
1000 }
1001
1002 if ($debug_enabled) {
1003 _debug("article enclosures:", $debug_enabled);
1004 print_r($enclosures);
1005 }
1006
1007 db_query("BEGIN");
1008
1009 // debugging
1010 // db_query("DELETE FROM ttrss_enclosures WHERE post_id = '$entry_ref_id'");
1011
1012 foreach ($enclosures as $enc) {
1013 $enc_url = db_escape_string($enc[0]);
1014 $enc_type = db_escape_string($enc[1]);
1015 $enc_dur = db_escape_string($enc[2]);
1016 $enc_title = db_escape_string($enc[3]);
1017 $enc_width = intval($enc[4]);
1018 $enc_height = intval($enc[5]);
1019
1020 $result = db_query("SELECT id FROM ttrss_enclosures
1021 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1022
1023 if (db_num_rows($result) == 0) {
1024 db_query("INSERT INTO ttrss_enclosures
1025 (content_url, content_type, title, duration, post_id, width, height) VALUES
1026 ('$enc_url', '$enc_type', '$enc_title', '$enc_dur', '$entry_ref_id', $enc_width, $enc_height)");
1027 }
1028 }
1029
1030 db_query("COMMIT");
1031
1032 // check for manual tags (we have to do it here since they're loaded from filters)
1033
1034 foreach ($article_filters as $f) {
1035 if ($f["type"] == "tag") {
1036
1037 $manual_tags = trim_array(explode(",", $f["param"]));
1038
1039 foreach ($manual_tags as $tag) {
1040 if (tag_is_valid($tag)) {
1041 array_push($entry_tags, $tag);
1042 }
1043 }
1044 }
1045 }
1046
1047 // Skip boring tags
1048
1049 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref(
1050 'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1051
1052 $filtered_tags = array();
1053 $tags_to_cache = array();
1054
1055 if ($entry_tags && is_array($entry_tags)) {
1056 foreach ($entry_tags as $tag) {
1057 if (array_search($tag, $boring_tags) === false) {
1058 array_push($filtered_tags, $tag);
1059 }
1060 }
1061 }
1062
1063 $filtered_tags = array_unique($filtered_tags);
1064
1065 if ($debug_enabled) {
1066 _debug("filtered article tags:", $debug_enabled);
1067 print_r($filtered_tags);
1068 }
1069
1070 // Save article tags in the database
1071
1072 if (count($filtered_tags) > 0) {
1073
1074 db_query("BEGIN");
1075
1076 foreach ($filtered_tags as $tag) {
1077
1078 $tag = sanitize_tag($tag);
1079 $tag = db_escape_string($tag);
1080
1081 if (!tag_is_valid($tag)) continue;
1082
1083 $result = db_query("SELECT id FROM ttrss_tags
1084 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1085 owner_uid = '$owner_uid' LIMIT 1");
1086
1087 if ($result && db_num_rows($result) == 0) {
1088
1089 db_query("INSERT INTO ttrss_tags
1090 (owner_uid,tag_name,post_int_id)
1091 VALUES ('$owner_uid','$tag', '$entry_int_id')");
1092 }
1093
1094 array_push($tags_to_cache, $tag);
1095 }
1096
1097 /* update the cache */
1098
1099 $tags_to_cache = array_unique($tags_to_cache);
1100
1101 $tags_str = db_escape_string(join(",", $tags_to_cache));
1102
1103 db_query("UPDATE ttrss_user_entries
1104 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1105 AND owner_uid = $owner_uid");
1106
1107 db_query("COMMIT");
1108 }
1109
1110 if (get_pref("AUTO_ASSIGN_LABELS", $owner_uid, false)) {
1111 _debug("auto-assigning labels...", $debug_enabled);
1112
1113 foreach ($labels as $label) {
1114 $caption = preg_quote($label["caption"]);
1115
1116 if ($caption && preg_match("/\b$caption\b/i", "$tags_str " . strip_tags($entry_content) . " $entry_title")) {
1117 if (!labels_contains_caption($article_labels, $caption)) {
1118 label_add_article($entry_ref_id, $caption, $owner_uid);
1119 }
1120 }
1121 }
1122 }
1123
1124 _debug("article processed", $debug_enabled);
1125 }
1126
1127 _debug("purging feed...", $debug_enabled);
1128
1129 purge_feed($feed, 0, $debug_enabled);
1130
1131 db_query("UPDATE ttrss_feeds
1132 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1133
1134 // db_query("COMMIT");
1135
1136 } else {
1137
1138 $error_msg = db_escape_string(mb_substr($rss->error(), 0, 245));
1139
1140 _debug("fetch error: $error_msg", $debug_enabled);
1141
1142 if (count($rss->errors()) > 1) {
1143 foreach ($rss->errors() as $error) {
1144 _debug("+ $error");
1145 }
1146 }
1147
1148 db_query(
1149 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1150 last_updated = NOW() WHERE id = '$feed'");
1151
1152 unset($rss);
1153 }
1154
1155 _debug("done", $debug_enabled);
1156
1157 return $rss;
1158 }
1159
1160 function cache_images($html, $site_url, $debug) {
1161 libxml_use_internal_errors(true);
1162
1163 $charset_hack = '<head>
1164 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
1165 </head>';
1166
1167 $doc = new DOMDocument();
1168 $doc->loadHTML($charset_hack . $html);
1169 $xpath = new DOMXPath($doc);
1170
1171 $entries = $xpath->query('(//img[@src])');
1172
1173 foreach ($entries as $entry) {
1174 if ($entry->hasAttribute('src')) {
1175 $src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
1176
1177 $local_filename = CACHE_DIR . "/images/" . sha1($src) . ".png";
1178
1179 if ($debug) _debug("cache_images: downloading: $src to $local_filename");
1180
1181 if (!file_exists($local_filename)) {
1182 $file_content = fetch_file_contents($src);
1183
1184 if ($file_content && strlen($file_content) > _MIN_CACHE_IMAGE_SIZE) {
1185 file_put_contents($local_filename, $file_content);
1186 }
1187 }
1188
1189 /* if (file_exists($local_filename)) {
1190 $entry->setAttribute('src', SELF_URL_PATH . '/image.php?url=' .
1191 base64_encode($src));
1192 } */
1193 }
1194 }
1195
1196 //$node = $doc->getElementsByTagName('body')->item(0);
1197 //return $doc->saveXML($node);
1198 }
1199
1200 function expire_error_log($debug) {
1201 if ($debug) _debug("Removing old error log entries...");
1202
1203 if (DB_TYPE == "pgsql") {
1204 db_query("DELETE FROM ttrss_error_log
1205 WHERE created_at < NOW() - INTERVAL '7 days'");
1206 } else {
1207 db_query("DELETE FROM ttrss_error_log
1208 WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
1209 }
1210
1211 }
1212
1213 function expire_lock_files($debug) {
1214 //if ($debug) _debug("Removing old lock files...");
1215
1216 $num_deleted = 0;
1217
1218 if (is_writable(LOCK_DIRECTORY)) {
1219 $files = glob(LOCK_DIRECTORY . "/*.lock");
1220
1221 if ($files) {
1222 foreach ($files as $file) {
1223 if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
1224 unlink($file);
1225 ++$num_deleted;
1226 }
1227 }
1228 }
1229 }
1230
1231 if ($debug) _debug("Removed $num_deleted old lock files.");
1232 }
1233
1234 function expire_cached_files($debug) {
1235 foreach (array("simplepie", "images", "export", "upload") as $dir) {
1236 $cache_dir = CACHE_DIR . "/$dir";
1237
1238 // if ($debug) _debug("Expiring $cache_dir");
1239
1240 $num_deleted = 0;
1241
1242 if (is_writable($cache_dir)) {
1243 $files = glob("$cache_dir/*");
1244
1245 if ($files) {
1246 foreach ($files as $file) {
1247 if (time() - filemtime($file) > 86400*7) {
1248 unlink($file);
1249
1250 ++$num_deleted;
1251 }
1252 }
1253 }
1254 }
1255
1256 if ($debug) _debug("$cache_dir: removed $num_deleted files.");
1257 }
1258 }
1259
1260 /**
1261 * Source: http://www.php.net/manual/en/function.parse-url.php#104527
1262 * Returns the url query as associative array
1263 *
1264 * @param string query
1265 * @return array params
1266 */
1267 function convertUrlQuery($query) {
1268 $queryParts = explode('&', $query);
1269
1270 $params = array();
1271
1272 foreach ($queryParts as $param) {
1273 $item = explode('=', $param);
1274 $params[$item[0]] = $item[1];
1275 }
1276
1277 return $params;
1278 }
1279
1280 function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1281 $matches = array();
1282
1283 foreach ($filters as $filter) {
1284 $match_any_rule = $filter["match_any_rule"];
1285 $inverse = $filter["inverse"];
1286 $filter_match = false;
1287
1288 foreach ($filter["rules"] as $rule) {
1289 $match = false;
1290 $reg_exp = str_replace('/', '\/', $rule["reg_exp"]);
1291 $rule_inverse = $rule["inverse"];
1292
1293 if (!$reg_exp)
1294 continue;
1295
1296 switch ($rule["type"]) {
1297 case "title":
1298 $match = @preg_match("/$reg_exp/i", $title);
1299 break;
1300 case "content":
1301 // we don't need to deal with multiline regexps
1302 $content = preg_replace("/[\r\n\t]/", "", $content);
1303
1304 $match = @preg_match("/$reg_exp/i", $content);
1305 break;
1306 case "both":
1307 // we don't need to deal with multiline regexps
1308 $content = preg_replace("/[\r\n\t]/", "", $content);
1309
1310 $match = (@preg_match("/$reg_exp/i", $title) || @preg_match("/$reg_exp/i", $content));
1311 break;
1312 case "link":
1313 $match = @preg_match("/$reg_exp/i", $link);
1314 break;
1315 case "author":
1316 $match = @preg_match("/$reg_exp/i", $author);
1317 break;
1318 case "tag":
1319 foreach ($tags as $tag) {
1320 if (@preg_match("/$reg_exp/i", $tag)) {
1321 $match = true;
1322 break;
1323 }
1324 }
1325 break;
1326 }
1327
1328 if ($rule_inverse) $match = !$match;
1329
1330 if ($match_any_rule) {
1331 if ($match) {
1332 $filter_match = true;
1333 break;
1334 }
1335 } else {
1336 $filter_match = $match;
1337 if (!$match) {
1338 break;
1339 }
1340 }
1341 }
1342
1343 if ($inverse) $filter_match = !$filter_match;
1344
1345 if ($filter_match) {
1346 foreach ($filter["actions"] AS $action) {
1347 array_push($matches, $action);
1348
1349 // if Stop action encountered, perform no further processing
1350 if ($action["type"] == "stop") return $matches;
1351 }
1352 }
1353 }
1354
1355 return $matches;
1356 }
1357
1358 function find_article_filter($filters, $filter_name) {
1359 foreach ($filters as $f) {
1360 if ($f["type"] == $filter_name) {
1361 return $f;
1362 };
1363 }
1364 return false;
1365 }
1366
1367 function find_article_filters($filters, $filter_name) {
1368 $results = array();
1369
1370 foreach ($filters as $f) {
1371 if ($f["type"] == $filter_name) {
1372 array_push($results, $f);
1373 };
1374 }
1375 return $results;
1376 }
1377
1378 function calculate_article_score($filters) {
1379 $score = 0;
1380
1381 foreach ($filters as $f) {
1382 if ($f["type"] == "score") {
1383 $score += $f["param"];
1384 };
1385 }
1386 return $score;
1387 }
1388
1389 function labels_contains_caption($labels, $caption) {
1390 foreach ($labels as $label) {
1391 if ($label[1] == $caption) {
1392 return true;
1393 }
1394 }
1395
1396 return false;
1397 }
1398
1399 function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
1400 foreach ($filters as $f) {
1401 if ($f["type"] == "label") {
1402 if (!labels_contains_caption($article_labels, $f["param"])) {
1403 label_add_article($id, $f["param"], $owner_uid);
1404 }
1405 }
1406 }
1407 }
1408
1409 function make_guid_from_title($title) {
1410 return preg_replace("/[ \"\',.:;]/", "-",
1411 mb_strtolower(strip_tags($title), 'utf-8'));
1412 }
1413
1414 /* function verify_feed_xml($feed_data) {
1415 libxml_use_internal_errors(true);
1416 $doc = new DOMDocument();
1417 $doc->loadXML($feed_data);
1418 $error = libxml_get_last_error();
1419 libxml_clear_errors();
1420 return $error;
1421 } */
1422
1423 function housekeeping_common($debug) {
1424 expire_cached_files($debug);
1425 expire_lock_files($debug);
1426 expire_error_log($debug);
1427
1428 $count = update_feedbrowser_cache();
1429 _debug("Feedbrowser updated, $count feeds processed.");
1430
1431 purge_orphans( true);
1432 $rc = cleanup_tags( 14, 50000);
1433
1434 _debug("Cleaned $rc cached tags.");
1435
1436 PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
1437
1438 }
1439 ?>
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/