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