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actually save feed xml in the cache
[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 $tmp_result = db_query("SELECT DISTINCT ttrss_feeds.id,last_updated
164 FROM ttrss_feeds, ttrss_users, ttrss_user_prefs WHERE
165 ttrss_user_prefs.owner_uid = ttrss_feeds.owner_uid AND
166 ttrss_users.id = ttrss_user_prefs.owner_uid AND
167 ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL' AND
168 feed_url = '".db_escape_string($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 while ($tline = db_fetch_assoc($tmp_result)) {
176 if($debug) _debug(" => " . $tline["last_updated"] . ", " . $tline["id"]);
177 update_rss_feed($tline["id"], true);
178 ++$nf;
179 }
180 }
181 }
182
183 require_once "digest.php";
184
185 // Send feed digests by email if needed.
186 send_headlines_digests($debug);
187
188 return $nf;
189
190 } // function update_daemon_common
191
192 // ignore_daemon is not used
193 function update_rss_feed($feed, $ignore_daemon = false, $no_cache = false,
194 $override_url = false) {
195
196 require_once "lib/simplepie/simplepie.inc";
197
198 $debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
199
200 _debug("start", $debug_enabled);
201
202 $result = db_query("SELECT id,update_interval,auth_login,
203 feed_url,auth_pass,cache_images,last_updated,
204 mark_unread_on_update, owner_uid,
205 pubsub_state, auth_pass_encrypted,
206 (SELECT max(date_entered) FROM
207 ttrss_entries, ttrss_user_entries where ref_id = id AND feed_id = '$feed') AS last_article_timestamp
208 FROM ttrss_feeds WHERE id = '$feed'");
209
210 if (db_num_rows($result) == 0) {
211 _debug("feed $feed NOT FOUND/SKIPPED", $debug_enabled);
212 return false;
213 }
214
215 // set last update to now so if anything *simplepie* crashes later we won't be
216 // continuously failing on the same feed
217 db_query("UPDATE ttrss_feeds SET last_updated = NOW() WHERE id = '$feed'");
218
219 $last_updated = db_fetch_result($result, 0, "last_updated");
220 $last_article_timestamp = @strtotime(db_fetch_result($result, 0, "last_article_timestamp"));
221 $owner_uid = db_fetch_result($result, 0, "owner_uid");
222 $mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
223 0, "mark_unread_on_update"));
224 $pubsub_state = db_fetch_result($result, 0, "pubsub_state");
225 $auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result,
226 0, "auth_pass_encrypted"));
227
228 db_query("UPDATE ttrss_feeds SET last_update_started = NOW()
229 WHERE id = '$feed'");
230
231 $auth_login = db_fetch_result($result, 0, "auth_login");
232 $auth_pass = db_fetch_result($result, 0, "auth_pass");
233
234 if ($auth_pass_encrypted) {
235 require_once "crypt.php";
236 $auth_pass = decrypt_string($auth_pass);
237 }
238
239 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
240 $fetch_url = db_fetch_result($result, 0, "feed_url");
241
242 $feed = db_escape_string($feed);
243
244 if ($override_url) $fetch_url = $override_url;
245
246 $date_feed_processed = date('Y-m-d H:i');
247
248 $cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url) . ".feed2";
249
250 // Ignore cache if new feed or manual update.
251 $cache_age = ($no_cache || is_null($last_updated) || strpos($last_updated, '1970-01-01') === 0) ? 30 : get_feed_update_interval($feed) * 60;
252
253 _debug("cache filename: $cache_filename exists: " . file_exists($cache_filename), $debug_enabled);
254 _debug("cache age: $cache_age; no cache: $no_cache", $debug_enabled);
255
256 $cached_feed_data_hash = false;
257
258 $rss = false;
259 $rss_hash = false;
260 $cache_timestamp = file_exists($cache_filename) ? filemtime($cache_filename) : 0;
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() - $cache_age) {
268
269 _debug("using local cache.", $debug_enabled);
270
271 if ($cache_timestamp > $last_article_timestamp) {
272 @$feed_data = file_get_contents($cache_filename);
273
274 if ($feed_data) {
275 $rss_hash = sha1($feed_data);
276 }
277 } else if (!$force_refetch) {
278 _debug("local cache valid and older than last_updated, nothing to do.", $debug_enabled);
279 return;
280 }
281 } else {
282 _debug("local cache will not be used for this feed", $debug_enabled);
283 }
284
285 if (!$rss) {
286
287 if (!$feed_data) {
288 _debug("fetching [$fetch_url]...", $debug_enabled);
289 _debug("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $last_article_timestamp), $debug_enabled);
290
291 $feed_data = fetch_file_contents($fetch_url, false,
292 $auth_login, $auth_pass, false,
293 $no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
294 $force_refetch ? 0 : $last_article_timestamp);
295
296 global $fetch_curl_used;
297
298 if (!$fetch_curl_used) {
299 $tmp = @gzdecode($feed_data);
300
301 if ($tmp) $feed_data = $tmp;
302 }
303
304 $feed_data = trim($feed_data);
305
306 _debug("fetch done.", $debug_enabled);
307
308 if ($feed_data) {
309 $error = verify_feed_xml($feed_data);
310
311 if ($error) {
312 _debug("error verifying XML, code: " . $error->code, $debug_enabled);
313
314 if ($error->code == 26) {
315 _debug("got error 26, trying to decode entities...", $debug_enabled);
316
317 $feed_data = html_entity_decode($feed_data, ENT_COMPAT, 'UTF-8');
318
319 $error = verify_feed_xml($feed_data);
320
321 if ($error) $feed_data = '';
322 }
323 }
324 }
325 }
326
327 if (!$feed_data) {
328 global $fetch_last_error;
329 global $fetch_last_error_code;
330
331 _debug("unable to fetch: $fetch_last_error [$fetch_last_error_code]", $debug_enabled);
332
333 $error_escaped = '';
334
335 // If-Modified-Since
336 if ($fetch_last_error_code != 304) {
337 $error_escaped = db_escape_string($fetch_last_error);
338 } else {
339 _debug("source claims data not modified, nothing to do.", $debug_enabled);
340 }
341
342 db_query(
343 "UPDATE ttrss_feeds SET last_error = '$error_escaped',
344 last_updated = NOW() WHERE id = '$feed'");
345
346 return;
347 }
348 }
349
350 $pluginhost = new PluginHost();
351 $pluginhost->set_debug($debug_enabled, $debug_enabled);
352 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
353
354 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
355 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
356 $pluginhost->load_data();
357
358 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_FETCHED) as $plugin) {
359 $feed_data = $plugin->hook_feed_fetched($feed_data);
360 }
361
362 if (!$rss) {
363 /* $rss = new SimplePie();
364 $rss->set_sanitize_class("SanitizeDummy");
365 // simplepie ignores the above and creates default sanitizer anyway,
366 // so let's override it...
367 $rss->sanitize = new SanitizeDummy();
368 $rss->set_output_encoding('UTF-8');
369 $rss->set_raw_data($feed_data);
370 $rss->enable_cache(false); */
371
372 $rss = new FeedParser($feed_data);
373 $rss->init();
374 }
375
376 // print_r($rss);
377
378 $feed = db_escape_string($feed);
379
380 if (!$rss->error()) {
381
382 // cache data for later
383 if (!$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/simplepie")) {
384 $new_rss_hash = sha1($rss_data);
385
386 if ($new_rss_hash != $rss_hash && count($rss->get_items()) > 0 ) {
387 _debug("saving $cache_filename", $debug_enabled);
388 @file_put_contents($cache_filename, $feed_data);
389 }
390 }
391
392 // We use local pluginhost here because we need to load different per-user feed plugins
393 $pluginhost->run_hooks(PluginHost::HOOK_FEED_PARSED, "hook_feed_parsed", $rss);
394
395 _debug("processing feed data...", $debug_enabled);
396
397 // db_query("BEGIN");
398
399 if (DB_TYPE == "pgsql") {
400 $favicon_interval_qpart = "favicon_last_checked < NOW() - INTERVAL '12 hour'";
401 } else {
402 $favicon_interval_qpart = "favicon_last_checked < DATE_SUB(NOW(), INTERVAL 12 HOUR)";
403 }
404
405 $result = db_query("SELECT title,site_url,owner_uid,favicon_avg_color,
406 (favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
407 favicon_needs_check
408 FROM ttrss_feeds WHERE id = '$feed'");
409
410 $registered_title = db_fetch_result($result, 0, "title");
411 $orig_site_url = db_fetch_result($result, 0, "site_url");
412 $favicon_needs_check = sql_bool_to_bool(db_fetch_result($result, 0,
413 "favicon_needs_check"));
414 $favicon_avg_color = db_fetch_result($result, 0, "favicon_avg_color");
415
416 $owner_uid = db_fetch_result($result, 0, "owner_uid");
417
418 $site_url = db_escape_string(mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245));
419
420 _debug("site_url: $site_url", $debug_enabled);
421 _debug("feed_title: " . $rss->get_title(), $debug_enabled);
422
423 if ($favicon_needs_check || $force_refetch) {
424
425 /* terrible hack: if we crash on floicon shit here, we won't check
426 * the icon avgcolor again (unless the icon got updated) */
427
428 $favicon_file = ICONS_DIR . "/$feed.ico";
429 $favicon_modified = @filemtime($favicon_file);
430
431 _debug("checking favicon...", $debug_enabled);
432
433 check_feed_favicon($site_url, $feed, $link);
434 $favicon_modified_new = @filemtime($favicon_file);
435
436 if ($favicon_modified_new > $favicon_modified)
437 $favicon_avg_color = '';
438
439 if (file_exists($favicon_file) && function_exists("imagecreatefromstring") && $favicon_avg_color == '') {
440 require_once "colors.php";
441
442 db_query("UPDATE ttrss_feeds SET favicon_avg_color = 'fail' WHERE
443 id = '$feed'");
444
445 $favicon_color = db_escape_string(
446 calculate_avg_color($favicon_file));
447
448 $favicon_colorstring = ",favicon_avg_color = '".$favicon_color."'";
449 } else if ($favicon_avg_color == 'fail') {
450 _debug("floicon failed on this file, not trying to recalculate avg color", $debug_enabled);
451 }
452
453 db_query("UPDATE ttrss_feeds SET favicon_last_checked = NOW()
454 $favicon_colorstring
455 WHERE id = '$feed'");
456 }
457
458 if (!$registered_title || $registered_title == "[Unknown]") {
459
460 $feed_title = db_escape_string($rss->get_title());
461
462 _debug("registering title: $feed_title", $debug_enabled);
463
464 db_query("UPDATE ttrss_feeds SET
465 title = '$feed_title' WHERE id = '$feed'");
466 }
467
468 if ($site_url && $orig_site_url != $site_url) {
469 db_query("UPDATE ttrss_feeds SET
470 site_url = '$site_url' WHERE id = '$feed'");
471 }
472
473 _debug("loading filters & labels...", $debug_enabled);
474
475 $filters = load_filters($feed, $owner_uid);
476 $labels = get_all_labels($owner_uid);
477
478 _debug("" . count($filters) . " filters loaded.", $debug_enabled);
479
480 $items = $rss->get_items();
481
482 if (!is_array($items)) {
483 _debug("no articles found.", $debug_enabled);
484
485 db_query("UPDATE ttrss_feeds
486 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
487
488 return; // no articles
489 }
490
491 if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
492
493 _debug("checking for PUSH hub...", $debug_enabled);
494
495 $feed_hub_url = false;
496
497 $links = $rss->get_links('hub');
498
499 if ($links && is_array($links)) {
500 foreach ($links as $l) {
501 $feed_hub_url = $l;
502 break;
503 }
504 }
505
506 _debug("feed hub url: $feed_hub_url", $debug_enabled);
507
508 if ($feed_hub_url && function_exists('curl_init') &&
509 !ini_get("open_basedir")) {
510
511 require_once 'lib/pubsubhubbub/subscriber.php';
512
513 $callback_url = get_self_url_prefix() .
514 "/public.php?op=pubsub&id=$feed";
515
516 $s = new Subscriber($feed_hub_url, $callback_url);
517
518 $rc = $s->subscribe($fetch_url);
519
520 _debug("feed hub url found, subscribe request sent.", $debug_enabled);
521
522 db_query("UPDATE ttrss_feeds SET pubsub_state = 1
523 WHERE id = '$feed'");
524 }
525 }
526
527 _debug("processing articles...", $debug_enabled);
528
529 foreach ($items as $item) {
530 if ($_REQUEST['xdebug'] == 3) {
531 print_r($item);
532 }
533
534 $entry_guid = $item->get_id();
535 if (!$entry_guid) $entry_guid = $item->get_link();
536 if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
537
538 _debug("f_guid $entry_guid", $debug_enabled);
539
540 if (!$entry_guid) continue;
541
542 $entry_guid = "$owner_uid,$entry_guid";
543
544 $entry_guid_hashed = db_escape_string('SHA1:' . sha1($entry_guid));
545
546 _debug("guid $entry_guid / $entry_guid_hashed", $debug_enabled);
547
548 $entry_timestamp = "";
549
550 $entry_timestamp = $item->get_date();
551
552 _debug("orig date: " . $item->get_date(), $debug_enabled);
553
554 if ($entry_timestamp == -1 || !$entry_timestamp || $entry_timestamp > time()) {
555 $entry_timestamp = time();
556 $no_orig_date = 'true';
557 } else {
558 $no_orig_date = 'false';
559 }
560
561 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
562
563 _debug("date $entry_timestamp [$entry_timestamp_fmt]", $debug_enabled);
564
565 // $entry_title = html_entity_decode($item->get_title(), ENT_COMPAT, 'UTF-8');
566 // $entry_title = decode_numeric_entities($entry_title);
567 $entry_title = $item->get_title();
568
569 $entry_link = rewrite_relative_url($site_url, $item->get_link());
570
571 _debug("title $entry_title", $debug_enabled);
572 _debug("link $entry_link", $debug_enabled);
573
574 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
575
576 $entry_content = $item->get_content();
577 if (!$entry_content) $entry_content = $item->get_description();
578
579 if ($_REQUEST["xdebug"] == 2) {
580 print "content: ";
581 print $entry_content;
582 print "\n";
583 }
584
585 $entry_comments = $item->get_comments_url();
586 $entry_author = $item->get_author();
587
588 $entry_guid = db_escape_string(mb_substr($entry_guid, 0, 245));
589
590 $entry_comments = db_escape_string(mb_substr(trim($entry_comments), 0, 245));
591 $entry_author = db_escape_string(mb_substr(trim($entry_author), 0, 245));
592
593 $num_comments = $item->get_comments_count();
594
595 if (is_array($num_comments) && is_array($num_comments[0])) {
596 $num_comments = (int) $num_comments[0]["data"];
597 } else {
598 $num_comments = 0;
599 }
600
601 _debug("author $entry_author", $debug_enabled);
602 _debug("num_comments: $num_comments", $debug_enabled);
603 _debug("looking for tags [1]...", $debug_enabled);
604
605 // parse <category> entries into tags
606
607 $additional_tags = array();
608
609 $additional_tags_src = $item->get_categories();
610
611 if (is_array($additional_tags_src)) {
612 foreach ($additional_tags_src as $tobj) {
613 array_push($additional_tags, $tobj);
614 }
615 }
616
617 _debug("category tags:", $debug_enabled);
618 _debug("looking for tags [2]...", $debug_enabled);
619
620 $entry_tags = array_unique($additional_tags);
621
622 for ($i = 0; $i < count($entry_tags); $i++)
623 $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
624
625 _debug("done collecting data.", $debug_enabled);
626
627 // TODO: less memory-hungry implementation
628
629 _debug("applying plugin filters..", $debug_enabled);
630
631 // FIXME not sure if owner_uid is a good idea here, we may have a base entry without user entry (?)
632 $result = db_query("SELECT plugin_data,title,content,link,tag_cache,author FROM ttrss_entries, ttrss_user_entries
633 WHERE ref_id = id AND (guid = '".db_escape_string($entry_guid)."' OR guid = '$entry_guid_hashed') AND owner_uid = $owner_uid");
634
635 if (db_num_rows($result) != 0) {
636 $entry_plugin_data = db_fetch_result($result, 0, "plugin_data");
637 $stored_article = array("title" => db_fetch_result($result, 0, "title"),
638 "content" => db_fetch_result($result, 0, "content"),
639 "link" => db_fetch_result($result, 0, "link"),
640 "tags" => explode(",", db_fetch_result($result, 0, "tag_cache")),
641 "author" => db_fetch_result($result, 0, "author"));
642 } else {
643 $entry_plugin_data = "";
644 $stored_article = array();
645 }
646
647 $article = array("owner_uid" => $owner_uid, // read only
648 "guid" => $entry_guid, // read only
649 "title" => $entry_title,
650 "content" => $entry_content,
651 "link" => $entry_link,
652 "tags" => $entry_tags,
653 "plugin_data" => $entry_plugin_data,
654 "author" => $entry_author,
655 "stored" => $stored_article);
656
657 foreach ($pluginhost->get_hooks(PluginHost::HOOK_ARTICLE_FILTER) as $plugin) {
658 $article = $plugin->hook_article_filter($article);
659 }
660
661 $entry_tags = $article["tags"];
662 $entry_guid = db_escape_string($entry_guid);
663 $entry_title = db_escape_string($article["title"]);
664 $entry_author = db_escape_string($article["author"]);
665 $entry_link = db_escape_string($article["link"]);
666 $entry_plugin_data = db_escape_string($article["plugin_data"]);
667 $entry_content = $article["content"]; // escaped below
668
669
670 _debug("plugin data: $entry_plugin_data", $debug_enabled);
671
672 if ($cache_images && is_writable(CACHE_DIR . '/images'))
673 cache_images($entry_content, $site_url, $debug_enabled);
674
675 $entry_content = db_escape_string($entry_content, false);
676
677 $content_hash = "SHA1:" . sha1($entry_content);
678
679 db_query("BEGIN");
680
681 $result = db_query("SELECT id FROM ttrss_entries
682 WHERE (guid = '$entry_guid' OR guid = '$entry_guid_hashed')");
683
684 if (db_num_rows($result) == 0) {
685
686 _debug("base guid [$entry_guid] not found", $debug_enabled);
687
688 // base post entry does not exist, create it
689
690 $result = db_query(
691 "INSERT INTO ttrss_entries
692 (title,
693 guid,
694 link,
695 updated,
696 content,
697 content_hash,
698 cached_content,
699 no_orig_date,
700 date_updated,
701 date_entered,
702 comments,
703 num_comments,
704 plugin_data,
705 author)
706 VALUES
707 ('$entry_title',
708 '$entry_guid_hashed',
709 '$entry_link',
710 '$entry_timestamp_fmt',
711 '$entry_content',
712 '$content_hash',
713 '',
714 $no_orig_date,
715 NOW(),
716 '$date_feed_processed',
717 '$entry_comments',
718 '$num_comments',
719 '$entry_plugin_data',
720 '$entry_author')");
721
722 $article_labels = array();
723
724 } else {
725 // we keep encountering the entry in feeds, so we need to
726 // update date_updated column so that we don't get horrible
727 // dupes when the entry gets purged and reinserted again e.g.
728 // in the case of SLOW SLOW OMG SLOW updating feeds
729
730 $base_entry_id = db_fetch_result($result, 0, "id");
731
732 db_query("UPDATE ttrss_entries SET date_updated = NOW()
733 WHERE id = '$base_entry_id'");
734
735 $article_labels = get_article_labels($base_entry_id, $owner_uid);
736 }
737
738 // now it should exist, if not - bad luck then
739
740 $result = db_query("SELECT
741 id,content_hash,no_orig_date,title,plugin_data,guid,
742 ".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
743 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
744 num_comments
745 FROM
746 ttrss_entries
747 WHERE guid = '$entry_guid' OR guid = '$entry_guid_hashed'");
748
749 $entry_ref_id = 0;
750 $entry_int_id = 0;
751
752 if (db_num_rows($result) == 1) {
753
754 _debug("base guid found, checking for user record", $debug_enabled);
755
756 // this will be used below in update handler
757 $orig_content_hash = db_fetch_result($result, 0, "content_hash");
758 $orig_title = db_fetch_result($result, 0, "title");
759 $orig_num_comments = db_fetch_result($result, 0, "num_comments");
760 $orig_date_updated = strtotime(db_fetch_result($result,
761 0, "date_updated"));
762 $orig_plugin_data = db_fetch_result($result, 0, "plugin_data");
763
764 $ref_id = db_fetch_result($result, 0, "id");
765 $entry_ref_id = $ref_id;
766
767 /* $stored_guid = db_fetch_result($result, 0, "guid");
768 if ($stored_guid != $entry_guid_hashed) {
769 if ($debug_enabled) _debug("upgrading compat guid to hashed one", $debug_enabled);
770
771 db_query("UPDATE ttrss_entries SET guid = '$entry_guid_hashed' WHERE
772 id = '$ref_id'");
773 } */
774
775 // check for user post link to main table
776
777 // do we allow duplicate posts with same GUID in different feeds?
778 if (get_pref("ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
779 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
780 } else {
781 $dupcheck_qpart = "";
782 }
783
784 /* Collect article tags here so we could filter by them: */
785
786 $article_filters = get_article_filters($filters, $entry_title,
787 $entry_content, $entry_link, $entry_timestamp, $entry_author,
788 $entry_tags);
789
790 if ($debug_enabled) {
791 _debug("article filters: ", $debug_enabled);
792 if (count($article_filters) != 0) {
793 print_r($article_filters);
794 }
795 }
796
797 if (find_article_filter($article_filters, "filter")) {
798 db_query("COMMIT"); // close transaction in progress
799 continue;
800 }
801
802 $score = calculate_article_score($article_filters);
803
804 _debug("initial score: $score", $debug_enabled);
805
806 $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
807 ref_id = '$ref_id' AND owner_uid = '$owner_uid'
808 $dupcheck_qpart";
809
810 // if ($_REQUEST["xdebug"]) print "$query\n";
811
812 $result = db_query($query);
813
814 // okay it doesn't exist - create user entry
815 if (db_num_rows($result) == 0) {
816
817 _debug("user record not found, creating...", $debug_enabled);
818
819 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
820 $unread = 'true';
821 $last_read_qpart = 'NULL';
822 } else {
823 $unread = 'false';
824 $last_read_qpart = 'NOW()';
825 }
826
827 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
828 $marked = 'true';
829 } else {
830 $marked = 'false';
831 }
832
833 if (find_article_filter($article_filters, 'publish')) {
834 $published = 'true';
835 } else {
836 $published = 'false';
837 }
838
839 // N-grams
840
841 if (DB_TYPE == "pgsql" and defined('_NGRAM_TITLE_DUPLICATE_THRESHOLD')) {
842
843 $result = db_query("SELECT COUNT(*) AS similar FROM
844 ttrss_entries,ttrss_user_entries
845 WHERE ref_id = id AND updated >= NOW() - INTERVAL '7 day'
846 AND similarity(title, '$entry_title') >= "._NGRAM_TITLE_DUPLICATE_THRESHOLD."
847 AND owner_uid = $owner_uid");
848
849 $ngram_similar = db_fetch_result($result, 0, "similar");
850
851 _debug("N-gram similar results: $ngram_similar", $debug_enabled);
852
853 if ($ngram_similar > 0) {
854 $unread = 'false';
855 }
856 }
857
858 $last_marked = ($marked == 'true') ? 'NOW()' : 'NULL';
859 $last_published = ($published == 'true') ? 'NOW()' : 'NULL';
860
861 $result = db_query(
862 "INSERT INTO ttrss_user_entries
863 (ref_id, owner_uid, feed_id, unread, last_read, marked,
864 published, score, tag_cache, label_cache, uuid,
865 last_marked, last_published)
866 VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
867 $last_read_qpart, $marked, $published, '$score', '', '',
868 '', $last_marked, $last_published)");
869
870 if (PUBSUBHUBBUB_HUB && $published == 'true') {
871 $rss_link = get_self_url_prefix() .
872 "/public.php?op=rss&id=-2&key=" .
873 get_feed_access_key(-2, false, $owner_uid);
874
875 $p = new Publisher(PUBSUBHUBBUB_HUB);
876
877 $pubsub_result = $p->publish_update($rss_link);
878 }
879
880 $result = db_query(
881 "SELECT int_id FROM ttrss_user_entries WHERE
882 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
883 feed_id = '$feed' LIMIT 1");
884
885 if (db_num_rows($result) == 1) {
886 $entry_int_id = db_fetch_result($result, 0, "int_id");
887 }
888 } else {
889 _debug("user record FOUND", $debug_enabled);
890
891 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
892 $entry_int_id = db_fetch_result($result, 0, "int_id");
893 }
894
895 _debug("RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
896
897 $post_needs_update = false;
898 $update_insignificant = false;
899
900 if ($orig_num_comments != $num_comments) {
901 $post_needs_update = true;
902 $update_insignificant = true;
903 }
904
905 if ($entry_plugin_data != $orig_plugin_data) {
906 $post_needs_update = true;
907 $update_insignificant = true;
908 }
909
910 if ($content_hash != $orig_content_hash) {
911 $post_needs_update = true;
912 $update_insignificant = false;
913 }
914
915 if (db_escape_string($orig_title) != $entry_title) {
916 $post_needs_update = true;
917 $update_insignificant = false;
918 }
919
920 // if post needs update, update it and mark all user entries
921 // linking to this post as updated
922 if ($post_needs_update) {
923
924 if (defined('DAEMON_EXTENDED_DEBUG')) {
925 _debug("post $entry_guid_hashed needs update...", $debug_enabled);
926 }
927
928 // print "<!-- post $orig_title needs update : $post_needs_update -->";
929
930 db_query("UPDATE ttrss_entries
931 SET title = '$entry_title', content = '$entry_content',
932 content_hash = '$content_hash',
933 updated = '$entry_timestamp_fmt',
934 num_comments = '$num_comments',
935 plugin_data = '$entry_plugin_data'
936 WHERE id = '$ref_id'");
937
938 if (!$update_insignificant) {
939 if ($mark_unread_on_update) {
940 db_query("UPDATE ttrss_user_entries
941 SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
942 }
943 }
944 }
945 }
946
947 db_query("COMMIT");
948
949 _debug("assigning labels...", $debug_enabled);
950
951 assign_article_to_label_filters($entry_ref_id, $article_filters,
952 $owner_uid, $article_labels);
953
954 _debug("looking for enclosures...", $debug_enabled);
955
956 // enclosures
957
958 $enclosures = array();
959
960 $encs = $item->get_enclosures();
961
962 if (is_array($encs)) {
963 foreach ($encs as $e) {
964 $e_item = array(
965 $e->link, $e->type, $e->length);
966 array_push($enclosures, $e_item);
967 }
968 }
969
970 if ($debug_enabled) {
971 _debug("article enclosures:", $debug_enabled);
972 print_r($enclosures);
973 }
974
975 db_query("BEGIN");
976
977 foreach ($enclosures as $enc) {
978 $enc_url = db_escape_string($enc[0]);
979 $enc_type = db_escape_string($enc[1]);
980 $enc_dur = db_escape_string($enc[2]);
981
982 $result = db_query("SELECT id FROM ttrss_enclosures
983 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
984
985 if (db_num_rows($result) == 0) {
986 db_query("INSERT INTO ttrss_enclosures
987 (content_url, content_type, title, duration, post_id) VALUES
988 ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
989 }
990 }
991
992 db_query("COMMIT");
993
994 // check for manual tags (we have to do it here since they're loaded from filters)
995
996 foreach ($article_filters as $f) {
997 if ($f["type"] == "tag") {
998
999 $manual_tags = trim_array(explode(",", $f["param"]));
1000
1001 foreach ($manual_tags as $tag) {
1002 if (tag_is_valid($tag)) {
1003 array_push($entry_tags, $tag);
1004 }
1005 }
1006 }
1007 }
1008
1009 // Skip boring tags
1010
1011 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref(
1012 'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1013
1014 $filtered_tags = array();
1015 $tags_to_cache = array();
1016
1017 if ($entry_tags && is_array($entry_tags)) {
1018 foreach ($entry_tags as $tag) {
1019 if (array_search($tag, $boring_tags) === false) {
1020 array_push($filtered_tags, $tag);
1021 }
1022 }
1023 }
1024
1025 $filtered_tags = array_unique($filtered_tags);
1026
1027 if ($debug_enabled) {
1028 _debug("filtered article tags:", $debug_enabled);
1029 print_r($filtered_tags);
1030 }
1031
1032 // Save article tags in the database
1033
1034 if (count($filtered_tags) > 0) {
1035
1036 db_query("BEGIN");
1037
1038 foreach ($filtered_tags as $tag) {
1039
1040 $tag = sanitize_tag($tag);
1041 $tag = db_escape_string($tag);
1042
1043 if (!tag_is_valid($tag)) continue;
1044
1045 $result = db_query("SELECT id FROM ttrss_tags
1046 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1047 owner_uid = '$owner_uid' LIMIT 1");
1048
1049 if ($result && db_num_rows($result) == 0) {
1050
1051 db_query("INSERT INTO ttrss_tags
1052 (owner_uid,tag_name,post_int_id)
1053 VALUES ('$owner_uid','$tag', '$entry_int_id')");
1054 }
1055
1056 array_push($tags_to_cache, $tag);
1057 }
1058
1059 /* update the cache */
1060
1061 $tags_to_cache = array_unique($tags_to_cache);
1062
1063 $tags_str = db_escape_string(join(",", $tags_to_cache));
1064
1065 db_query("UPDATE ttrss_user_entries
1066 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1067 AND owner_uid = $owner_uid");
1068
1069 db_query("COMMIT");
1070 }
1071
1072 if (get_pref("AUTO_ASSIGN_LABELS", $owner_uid, false)) {
1073 _debug("auto-assigning labels...", $debug_enabled);
1074
1075 foreach ($labels as $label) {
1076 $caption = preg_quote($label["caption"]);
1077
1078 if ($caption && preg_match("/\b$caption\b/i", "$tags_str " . strip_tags($entry_content) . " $entry_title")) {
1079 if (!labels_contains_caption($article_labels, $caption)) {
1080 label_add_article($entry_ref_id, $caption, $owner_uid);
1081 }
1082 }
1083 }
1084 }
1085
1086 _debug("article processed", $debug_enabled);
1087 }
1088
1089 if (!$last_updated) {
1090 _debug("new feed, catching it up...", $debug_enabled);
1091 catchup_feed($feed, false, $owner_uid);
1092 }
1093
1094 _debug("purging feed...", $debug_enabled);
1095
1096 purge_feed($feed, 0, $debug_enabled);
1097
1098 db_query("UPDATE ttrss_feeds
1099 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1100
1101 // db_query("COMMIT");
1102
1103 } else {
1104
1105 $error_msg = db_escape_string(mb_substr($rss->error(), 0, 245));
1106
1107 _debug("error fetching feed: $error_msg", $debug_enabled);
1108
1109 db_query(
1110 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1111 last_updated = NOW() WHERE id = '$feed'");
1112 }
1113
1114 unset($rss);
1115
1116 _debug("done", $debug_enabled);
1117 }
1118
1119 function cache_images($html, $site_url, $debug) {
1120 $cache_dir = CACHE_DIR . "/images";
1121
1122 libxml_use_internal_errors(true);
1123
1124 $charset_hack = '<head>
1125 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
1126 </head>';
1127
1128 $doc = new DOMDocument();
1129 $doc->loadHTML($charset_hack . $html);
1130 $xpath = new DOMXPath($doc);
1131
1132 $entries = $xpath->query('(//img[@src])');
1133
1134 foreach ($entries as $entry) {
1135 if ($entry->hasAttribute('src')) {
1136 $src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
1137
1138 $local_filename = CACHE_DIR . "/images/" . sha1($src) . ".png";
1139
1140 if ($debug) _debug("cache_images: downloading: $src to $local_filename");
1141
1142 if (!file_exists($local_filename)) {
1143 $file_content = fetch_file_contents($src);
1144
1145 if ($file_content && strlen($file_content) > 1024) {
1146 file_put_contents($local_filename, $file_content);
1147 }
1148 }
1149
1150 if (file_exists($local_filename)) {
1151 $entry->setAttribute('src', SELF_URL_PATH . '/image.php?url=' .
1152 base64_encode($src));
1153 }
1154 }
1155 }
1156
1157 $node = $doc->getElementsByTagName('body')->item(0);
1158
1159 return $doc->saveXML($node);
1160 }
1161
1162 function expire_error_log($debug) {
1163 if ($debug) _debug("Removing old error log entries...");
1164
1165 if (DB_TYPE == "pgsql") {
1166 db_query("DELETE FROM ttrss_error_log
1167 WHERE created_at < NOW() - INTERVAL '7 days'");
1168 } else {
1169 db_query("DELETE FROM ttrss_error_log
1170 WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
1171 }
1172
1173 }
1174
1175 function expire_lock_files($debug) {
1176 //if ($debug) _debug("Removing old lock files...");
1177
1178 $num_deleted = 0;
1179
1180 if (is_writable(LOCK_DIRECTORY)) {
1181 $files = glob(LOCK_DIRECTORY . "/*.lock");
1182
1183 if ($files) {
1184 foreach ($files as $file) {
1185 if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
1186 unlink($file);
1187 ++$num_deleted;
1188 }
1189 }
1190 }
1191 }
1192
1193 if ($debug) _debug("Removed $num_deleted old lock files.");
1194 }
1195
1196 function expire_cached_files($debug) {
1197 foreach (array("simplepie", "images", "export", "upload") as $dir) {
1198 $cache_dir = CACHE_DIR . "/$dir";
1199
1200 // if ($debug) _debug("Expiring $cache_dir");
1201
1202 $num_deleted = 0;
1203
1204 if (is_writable($cache_dir)) {
1205 $files = glob("$cache_dir/*");
1206
1207 if ($files) {
1208 foreach ($files as $file) {
1209 if (time() - filemtime($file) > 86400*7) {
1210 unlink($file);
1211
1212 ++$num_deleted;
1213 }
1214 }
1215 }
1216 }
1217
1218 if ($debug) _debug("$cache_dir: removed $num_deleted files.");
1219 }
1220 }
1221
1222 /**
1223 * Source: http://www.php.net/manual/en/function.parse-url.php#104527
1224 * Returns the url query as associative array
1225 *
1226 * @param string query
1227 * @return array params
1228 */
1229 function convertUrlQuery($query) {
1230 $queryParts = explode('&', $query);
1231
1232 $params = array();
1233
1234 foreach ($queryParts as $param) {
1235 $item = explode('=', $param);
1236 $params[$item[0]] = $item[1];
1237 }
1238
1239 return $params;
1240 }
1241
1242 function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1243 $matches = array();
1244
1245 foreach ($filters as $filter) {
1246 $match_any_rule = $filter["match_any_rule"];
1247 $inverse = $filter["inverse"];
1248 $filter_match = false;
1249
1250 foreach ($filter["rules"] as $rule) {
1251 $match = false;
1252 $reg_exp = str_replace('/', '\/', $rule["reg_exp"]);
1253 $rule_inverse = $rule["inverse"];
1254
1255 if (!$reg_exp)
1256 continue;
1257
1258 switch ($rule["type"]) {
1259 case "title":
1260 $match = @preg_match("/$reg_exp/i", $title);
1261 break;
1262 case "content":
1263 // we don't need to deal with multiline regexps
1264 $content = preg_replace("/[\r\n\t]/", "", $content);
1265
1266 $match = @preg_match("/$reg_exp/i", $content);
1267 break;
1268 case "both":
1269 // we don't need to deal with multiline regexps
1270 $content = preg_replace("/[\r\n\t]/", "", $content);
1271
1272 $match = (@preg_match("/$reg_exp/i", $title) || @preg_match("/$reg_exp/i", $content));
1273 break;
1274 case "link":
1275 $match = @preg_match("/$reg_exp/i", $link);
1276 break;
1277 case "author":
1278 $match = @preg_match("/$reg_exp/i", $author);
1279 break;
1280 case "tag":
1281 foreach ($tags as $tag) {
1282 if (@preg_match("/$reg_exp/i", $tag)) {
1283 $match = true;
1284 break;
1285 }
1286 }
1287 break;
1288 }
1289
1290 if ($rule_inverse) $match = !$match;
1291
1292 if ($match_any_rule) {
1293 if ($match) {
1294 $filter_match = true;
1295 break;
1296 }
1297 } else {
1298 $filter_match = $match;
1299 if (!$match) {
1300 break;
1301 }
1302 }
1303 }
1304
1305 if ($inverse) $filter_match = !$filter_match;
1306
1307 if ($filter_match) {
1308 foreach ($filter["actions"] AS $action) {
1309 array_push($matches, $action);
1310
1311 // if Stop action encountered, perform no further processing
1312 if ($action["type"] == "stop") return $matches;
1313 }
1314 }
1315 }
1316
1317 return $matches;
1318 }
1319
1320 function find_article_filter($filters, $filter_name) {
1321 foreach ($filters as $f) {
1322 if ($f["type"] == $filter_name) {
1323 return $f;
1324 };
1325 }
1326 return false;
1327 }
1328
1329 function find_article_filters($filters, $filter_name) {
1330 $results = array();
1331
1332 foreach ($filters as $f) {
1333 if ($f["type"] == $filter_name) {
1334 array_push($results, $f);
1335 };
1336 }
1337 return $results;
1338 }
1339
1340 function calculate_article_score($filters) {
1341 $score = 0;
1342
1343 foreach ($filters as $f) {
1344 if ($f["type"] == "score") {
1345 $score += $f["param"];
1346 };
1347 }
1348 return $score;
1349 }
1350
1351 function labels_contains_caption($labels, $caption) {
1352 foreach ($labels as $label) {
1353 if ($label[1] == $caption) {
1354 return true;
1355 }
1356 }
1357
1358 return false;
1359 }
1360
1361 function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
1362 foreach ($filters as $f) {
1363 if ($f["type"] == "label") {
1364 if (!labels_contains_caption($article_labels, $f["param"])) {
1365 label_add_article($id, $f["param"], $owner_uid);
1366 }
1367 }
1368 }
1369 }
1370
1371 function make_guid_from_title($title) {
1372 return preg_replace("/[ \"\',.:;]/", "-",
1373 mb_strtolower(strip_tags($title), 'utf-8'));
1374 }
1375
1376 function verify_feed_xml($feed_data) {
1377 libxml_use_internal_errors(true);
1378 $doc = new DOMDocument();
1379 $doc->loadXML($feed_data);
1380 $error = libxml_get_last_error();
1381 libxml_clear_errors();
1382 return $error;
1383 }
1384
1385 function housekeeping_common($debug) {
1386 expire_cached_files($debug);
1387 expire_lock_files($debug);
1388 expire_error_log($debug);
1389
1390 $count = update_feedbrowser_cache();
1391 _debug("Feedbrowser updated, $count feeds processed.");
1392
1393 purge_orphans( true);
1394 $rc = cleanup_tags( 14, 50000);
1395
1396 _debug("Cleaned $rc cached tags.");
1397 }
1398 ?>
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/