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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
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) . ".feed";
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 > $last_article_timestamp) {
272 @$rss_data = file_get_contents($cache_filename);
273
274 if ($rss_data) {
275 $rss_hash = sha1($rss_data);
276 @$rss = unserialize($rss_data);
277 }
278 } else if (!$force_refetch) {
279 _debug("local cache valid and older than last_updated, nothing to do.", $debug_enabled);
280 return;
281 }
282 } else {
283 _debug("local cache will not be used for this feed", $debug_enabled);
284 }
285
286 if (!$rss) {
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 $pluginhost = new PluginHost();
352 $pluginhost->set_debug($debug_enabled, $debug_enabled);
353 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
354
355 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
356 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
357 $pluginhost->load_data();
358
359 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_FETCHED) as $plugin) {
360 $feed_data = $plugin->hook_feed_fetched($feed_data);
361 }
362
363 if (!$rss) {
364 /* $rss = new SimplePie();
365 $rss->set_sanitize_class("SanitizeDummy");
366 // simplepie ignores the above and creates default sanitizer anyway,
367 // so let's override it...
368 $rss->sanitize = new SanitizeDummy();
369 $rss->set_output_encoding('UTF-8');
370 $rss->set_raw_data($feed_data);
371 $rss->enable_cache(false); */
372
373 $rss = new FeedParser($feed_data);
374 $rss->init();
375 }
376
377 // print_r($rss);
378
379 $feed = db_escape_string($feed);
380
381 if (!$rss->error()) {
382
383 // cache data for later
384 if (!$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/simplepie")) {
385 $rss_data = serialize($rss);
386 $new_rss_hash = sha1($rss_data);
387
388 if ($new_rss_hash != $rss_hash) {
389 _debug("saving $cache_filename", $debug_enabled);
390 //@file_put_contents($cache_filename, serialize($rss)); NOT YET
391 }
392 }
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, $link);
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 _debug("registering title: $feed_title", $debug_enabled);
465
466 db_query("UPDATE ttrss_feeds SET
467 title = '$feed_title' WHERE id = '$feed'");
468 }
469
470 if ($site_url && $orig_site_url != $site_url) {
471 db_query("UPDATE ttrss_feeds SET
472 site_url = '$site_url' WHERE id = '$feed'");
473 }
474
475 _debug("loading filters & labels...", $debug_enabled);
476
477 $filters = load_filters($feed, $owner_uid);
478 $labels = get_all_labels($owner_uid);
479
480 _debug("" . count($filters) . " filters loaded.", $debug_enabled);
481
482 $items = $rss->get_items();
483
484 if (!is_array($items)) {
485 _debug("no articles found.", $debug_enabled);
486
487 db_query("UPDATE ttrss_feeds
488 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
489
490 return; // no articles
491 }
492
493 if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
494
495 _debug("checking for PUSH hub...", $debug_enabled);
496
497 $feed_hub_url = false;
498
499 $links = $rss->get_links('hub');
500
501 if ($links && is_array($links)) {
502 foreach ($links as $l) {
503 $feed_hub_url = $l;
504 break;
505 }
506 }
507
508 _debug("feed hub url: $feed_hub_url", $debug_enabled);
509
510 if ($feed_hub_url && function_exists('curl_init') &&
511 !ini_get("open_basedir")) {
512
513 require_once 'lib/pubsubhubbub/subscriber.php';
514
515 $callback_url = get_self_url_prefix() .
516 "/public.php?op=pubsub&id=$feed";
517
518 $s = new Subscriber($feed_hub_url, $callback_url);
519
520 $rc = $s->subscribe($fetch_url);
521
522 _debug("feed hub url found, subscribe request sent.", $debug_enabled);
523
524 db_query("UPDATE ttrss_feeds SET pubsub_state = 1
525 WHERE id = '$feed'");
526 }
527 }
528
529 _debug("processing articles...", $debug_enabled);
530
531 foreach ($items as $item) {
532 if ($_REQUEST['xdebug'] == 3) {
533 print_r($item);
534 }
535
536 $entry_guid = $item->get_id();
537 if (!$entry_guid) $entry_guid = $item->get_link();
538 if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
539
540 _debug("f_guid $entry_guid", $debug_enabled);
541
542 if (!$entry_guid) continue;
543
544 $entry_guid = "$owner_uid,$entry_guid";
545
546 $entry_guid_hashed = db_escape_string('SHA1:' . sha1($entry_guid));
547
548 _debug("guid $entry_guid / $entry_guid_hashed", $debug_enabled);
549
550 $entry_timestamp = "";
551
552 $entry_timestamp = strtotime($item->get_date());
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
568 $entry_link = rewrite_relative_url($site_url, $item->get_link());
569
570 _debug("title $entry_title", $debug_enabled);
571 _debug("link $entry_link", $debug_enabled);
572
573 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
574
575 $entry_content = $item->get_content();
576 if (!$entry_content) $entry_content = $item->get_description();
577
578 if ($_REQUEST["xdebug"] == 2) {
579 print "content: ";
580 print $entry_content;
581 print "\n";
582 }
583
584 $entry_comments = $item->get_comments_url();
585 $entry_author = $item->get_author();
586
587 $entry_guid = db_escape_string(mb_substr($entry_guid, 0, 245));
588
589 $entry_comments = db_escape_string(mb_substr(trim($entry_comments), 0, 245));
590 $entry_author = db_escape_string(mb_substr(trim($entry_author), 0, 245));
591
592 $num_comments = $item->get_comments_count();
593
594 if (is_array($num_comments) && is_array($num_comments[0])) {
595 $num_comments = (int) $num_comments[0]["data"];
596 } else {
597 $num_comments = 0;
598 }
599
600 _debug("author $entry_author", $debug_enabled);
601 _debug("num_comments: $num_comments", $debug_enabled);
602 _debug("looking for tags [1]...", $debug_enabled);
603
604 // parse <category> entries into tags
605
606 $additional_tags = array();
607
608 $additional_tags_src = $item->get_categories();
609
610 if (is_array($additional_tags_src)) {
611 foreach ($additional_tags_src as $tobj) {
612 array_push($additional_tags, $tobj);
613 }
614 }
615
616 _debug("category tags:", $debug_enabled);
617 _debug("looking for tags [2]...", $debug_enabled);
618
619 $entry_tags = array_unique($additional_tags);
620
621 for ($i = 0; $i < count($entry_tags); $i++)
622 $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
623
624 _debug("done collecting data.", $debug_enabled);
625
626 // TODO: less memory-hungry implementation
627
628 _debug("applying plugin filters..", $debug_enabled);
629
630 // FIXME not sure if owner_uid is a good idea here, we may have a base entry without user entry (?)
631 $result = db_query("SELECT plugin_data,title,content,link,tag_cache,author FROM ttrss_entries, ttrss_user_entries
632 WHERE ref_id = id AND (guid = '".db_escape_string($entry_guid)."' OR guid = '$entry_guid_hashed') AND owner_uid = $owner_uid");
633
634 if (db_num_rows($result) != 0) {
635 $entry_plugin_data = db_fetch_result($result, 0, "plugin_data");
636 $stored_article = array("title" => db_fetch_result($result, 0, "title"),
637 "content" => db_fetch_result($result, 0, "content"),
638 "link" => db_fetch_result($result, 0, "link"),
639 "tags" => explode(",", db_fetch_result($result, 0, "tag_cache")),
640 "author" => db_fetch_result($result, 0, "author"));
641 } else {
642 $entry_plugin_data = "";
643 $stored_article = array();
644 }
645
646 $article = array("owner_uid" => $owner_uid, // read only
647 "guid" => $entry_guid, // read only
648 "title" => $entry_title,
649 "content" => $entry_content,
650 "link" => $entry_link,
651 "tags" => $entry_tags,
652 "plugin_data" => $entry_plugin_data,
653 "author" => $entry_author,
654 "stored" => $stored_article);
655
656 foreach ($pluginhost->get_hooks(PluginHost::HOOK_ARTICLE_FILTER) as $plugin) {
657 $article = $plugin->hook_article_filter($article);
658 }
659
660 $entry_tags = $article["tags"];
661 $entry_guid = db_escape_string($entry_guid);
662 $entry_title = db_escape_string($article["title"]);
663 $entry_author = db_escape_string($article["author"]);
664 $entry_link = db_escape_string($article["link"]);
665 $entry_plugin_data = db_escape_string($article["plugin_data"]);
666 $entry_content = $article["content"]; // escaped below
667
668
669 _debug("plugin data: $entry_plugin_data", $debug_enabled);
670
671 if ($cache_images && is_writable(CACHE_DIR . '/images'))
672 cache_images($entry_content, $site_url, $debug_enabled);
673
674 $entry_content = db_escape_string($entry_content, false);
675
676 $content_hash = "SHA1:" . sha1($entry_content);
677
678 db_query("BEGIN");
679
680 $result = db_query("SELECT id FROM ttrss_entries
681 WHERE (guid = '$entry_guid' OR guid = '$entry_guid_hashed')");
682
683 if (db_num_rows($result) == 0) {
684
685 _debug("base guid [$entry_guid] not found", $debug_enabled);
686
687 // base post entry does not exist, create it
688
689 $result = db_query(
690 "INSERT INTO ttrss_entries
691 (title,
692 guid,
693 link,
694 updated,
695 content,
696 content_hash,
697 cached_content,
698 no_orig_date,
699 date_updated,
700 date_entered,
701 comments,
702 num_comments,
703 plugin_data,
704 author)
705 VALUES
706 ('$entry_title',
707 '$entry_guid_hashed',
708 '$entry_link',
709 '$entry_timestamp_fmt',
710 '$entry_content',
711 '$content_hash',
712 '',
713 $no_orig_date,
714 NOW(),
715 '$date_feed_processed',
716 '$entry_comments',
717 '$num_comments',
718 '$entry_plugin_data',
719 '$entry_author')");
720
721 $article_labels = array();
722
723 } else {
724 // we keep encountering the entry in feeds, so we need to
725 // update date_updated column so that we don't get horrible
726 // dupes when the entry gets purged and reinserted again e.g.
727 // in the case of SLOW SLOW OMG SLOW updating feeds
728
729 $base_entry_id = db_fetch_result($result, 0, "id");
730
731 db_query("UPDATE ttrss_entries SET date_updated = NOW()
732 WHERE id = '$base_entry_id'");
733
734 $article_labels = get_article_labels($base_entry_id, $owner_uid);
735 }
736
737 // now it should exist, if not - bad luck then
738
739 $result = db_query("SELECT
740 id,content_hash,no_orig_date,title,plugin_data,guid,
741 ".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
742 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
743 num_comments
744 FROM
745 ttrss_entries
746 WHERE guid = '$entry_guid' OR guid = '$entry_guid_hashed'");
747
748 $entry_ref_id = 0;
749 $entry_int_id = 0;
750
751 if (db_num_rows($result) == 1) {
752
753 _debug("base guid found, checking for user record", $debug_enabled);
754
755 // this will be used below in update handler
756 $orig_content_hash = db_fetch_result($result, 0, "content_hash");
757 $orig_title = db_fetch_result($result, 0, "title");
758 $orig_num_comments = db_fetch_result($result, 0, "num_comments");
759 $orig_date_updated = strtotime(db_fetch_result($result,
760 0, "date_updated"));
761 $orig_plugin_data = db_fetch_result($result, 0, "plugin_data");
762
763 $ref_id = db_fetch_result($result, 0, "id");
764 $entry_ref_id = $ref_id;
765
766 /* $stored_guid = db_fetch_result($result, 0, "guid");
767 if ($stored_guid != $entry_guid_hashed) {
768 if ($debug_enabled) _debug("upgrading compat guid to hashed one", $debug_enabled);
769
770 db_query("UPDATE ttrss_entries SET guid = '$entry_guid_hashed' WHERE
771 id = '$ref_id'");
772 } */
773
774 // check for user post link to main table
775
776 // do we allow duplicate posts with same GUID in different feeds?
777 if (get_pref("ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
778 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
779 } else {
780 $dupcheck_qpart = "";
781 }
782
783 /* Collect article tags here so we could filter by them: */
784
785 $article_filters = get_article_filters($filters, $entry_title,
786 $entry_content, $entry_link, $entry_timestamp, $entry_author,
787 $entry_tags);
788
789 if ($debug_enabled) {
790 _debug("article filters: ", $debug_enabled);
791 if (count($article_filters) != 0) {
792 print_r($article_filters);
793 }
794 }
795
796 if (find_article_filter($article_filters, "filter")) {
797 db_query("COMMIT"); // close transaction in progress
798 continue;
799 }
800
801 $score = calculate_article_score($article_filters);
802
803 _debug("initial score: $score", $debug_enabled);
804
805 $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
806 ref_id = '$ref_id' AND owner_uid = '$owner_uid'
807 $dupcheck_qpart";
808
809 // if ($_REQUEST["xdebug"]) print "$query\n";
810
811 $result = db_query($query);
812
813 // okay it doesn't exist - create user entry
814 if (db_num_rows($result) == 0) {
815
816 _debug("user record not found, creating...", $debug_enabled);
817
818 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
819 $unread = 'true';
820 $last_read_qpart = 'NULL';
821 } else {
822 $unread = 'false';
823 $last_read_qpart = 'NOW()';
824 }
825
826 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
827 $marked = 'true';
828 } else {
829 $marked = 'false';
830 }
831
832 if (find_article_filter($article_filters, 'publish')) {
833 $published = 'true';
834 } else {
835 $published = 'false';
836 }
837
838 // N-grams
839
840 if (DB_TYPE == "pgsql" and defined('_NGRAM_TITLE_DUPLICATE_THRESHOLD')) {
841
842 $result = db_query("SELECT COUNT(*) AS similar FROM
843 ttrss_entries,ttrss_user_entries
844 WHERE ref_id = id AND updated >= NOW() - INTERVAL '7 day'
845 AND similarity(title, '$entry_title') >= "._NGRAM_TITLE_DUPLICATE_THRESHOLD."
846 AND owner_uid = $owner_uid");
847
848 $ngram_similar = db_fetch_result($result, 0, "similar");
849
850 _debug("N-gram similar results: $ngram_similar", $debug_enabled);
851
852 if ($ngram_similar > 0) {
853 $unread = 'false';
854 }
855 }
856
857 $last_marked = ($marked == 'true') ? 'NOW()' : 'NULL';
858 $last_published = ($published == 'true') ? 'NOW()' : 'NULL';
859
860 $result = db_query(
861 "INSERT INTO ttrss_user_entries
862 (ref_id, owner_uid, feed_id, unread, last_read, marked,
863 published, score, tag_cache, label_cache, uuid,
864 last_marked, last_published)
865 VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
866 $last_read_qpart, $marked, $published, '$score', '', '',
867 '', $last_marked, $last_published)");
868
869 if (PUBSUBHUBBUB_HUB && $published == 'true') {
870 $rss_link = get_self_url_prefix() .
871 "/public.php?op=rss&id=-2&key=" .
872 get_feed_access_key(-2, false, $owner_uid);
873
874 $p = new Publisher(PUBSUBHUBBUB_HUB);
875
876 $pubsub_result = $p->publish_update($rss_link);
877 }
878
879 $result = db_query(
880 "SELECT int_id FROM ttrss_user_entries WHERE
881 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
882 feed_id = '$feed' LIMIT 1");
883
884 if (db_num_rows($result) == 1) {
885 $entry_int_id = db_fetch_result($result, 0, "int_id");
886 }
887 } else {
888 _debug("user record FOUND", $debug_enabled);
889
890 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
891 $entry_int_id = db_fetch_result($result, 0, "int_id");
892 }
893
894 _debug("RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
895
896 $post_needs_update = false;
897 $update_insignificant = false;
898
899 if ($orig_num_comments != $num_comments) {
900 $post_needs_update = true;
901 $update_insignificant = true;
902 }
903
904 if ($entry_plugin_data != $orig_plugin_data) {
905 $post_needs_update = true;
906 $update_insignificant = true;
907 }
908
909 if ($content_hash != $orig_content_hash) {
910 $post_needs_update = true;
911 $update_insignificant = false;
912 }
913
914 if (db_escape_string($orig_title) != $entry_title) {
915 $post_needs_update = true;
916 $update_insignificant = false;
917 }
918
919 // if post needs update, update it and mark all user entries
920 // linking to this post as updated
921 if ($post_needs_update) {
922
923 if (defined('DAEMON_EXTENDED_DEBUG')) {
924 _debug("post $entry_guid_hashed needs update...", $debug_enabled);
925 }
926
927 // print "<!-- post $orig_title needs update : $post_needs_update -->";
928
929 db_query("UPDATE ttrss_entries
930 SET title = '$entry_title', content = '$entry_content',
931 content_hash = '$content_hash',
932 updated = '$entry_timestamp_fmt',
933 num_comments = '$num_comments',
934 plugin_data = '$entry_plugin_data'
935 WHERE id = '$ref_id'");
936
937 if (!$update_insignificant) {
938 if ($mark_unread_on_update) {
939 db_query("UPDATE ttrss_user_entries
940 SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
941 }
942 }
943 }
944 }
945
946 db_query("COMMIT");
947
948 _debug("assigning labels...", $debug_enabled);
949
950 assign_article_to_label_filters($entry_ref_id, $article_filters,
951 $owner_uid, $article_labels);
952
953 _debug("looking for enclosures...", $debug_enabled);
954
955 // enclosures
956
957 $enclosures = array();
958
959 $encs = $item->get_enclosures();
960
961 if (is_array($encs)) {
962 foreach ($encs as $e) {
963 $e_item = array(
964 $e->link, $e->type, $e->length);
965 array_push($enclosures, $e_item);
966 }
967 }
968
969 if ($debug_enabled) {
970 _debug("article enclosures:", $debug_enabled);
971 print_r($enclosures);
972 }
973
974 db_query("BEGIN");
975
976 foreach ($enclosures as $enc) {
977 $enc_url = db_escape_string($enc[0]);
978 $enc_type = db_escape_string($enc[1]);
979 $enc_dur = db_escape_string($enc[2]);
980
981 $result = db_query("SELECT id FROM ttrss_enclosures
982 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
983
984 if (db_num_rows($result) == 0) {
985 db_query("INSERT INTO ttrss_enclosures
986 (content_url, content_type, title, duration, post_id) VALUES
987 ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
988 }
989 }
990
991 db_query("COMMIT");
992
993 // check for manual tags (we have to do it here since they're loaded from filters)
994
995 foreach ($article_filters as $f) {
996 if ($f["type"] == "tag") {
997
998 $manual_tags = trim_array(explode(",", $f["param"]));
999
1000 foreach ($manual_tags as $tag) {
1001 if (tag_is_valid($tag)) {
1002 array_push($entry_tags, $tag);
1003 }
1004 }
1005 }
1006 }
1007
1008 // Skip boring tags
1009
1010 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref(
1011 'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1012
1013 $filtered_tags = array();
1014 $tags_to_cache = array();
1015
1016 if ($entry_tags && is_array($entry_tags)) {
1017 foreach ($entry_tags as $tag) {
1018 if (array_search($tag, $boring_tags) === false) {
1019 array_push($filtered_tags, $tag);
1020 }
1021 }
1022 }
1023
1024 $filtered_tags = array_unique($filtered_tags);
1025
1026 if ($debug_enabled) {
1027 _debug("filtered article tags:", $debug_enabled);
1028 print_r($filtered_tags);
1029 }
1030
1031 // Save article tags in the database
1032
1033 if (count($filtered_tags) > 0) {
1034
1035 db_query("BEGIN");
1036
1037 foreach ($filtered_tags as $tag) {
1038
1039 $tag = sanitize_tag($tag);
1040 $tag = db_escape_string($tag);
1041
1042 if (!tag_is_valid($tag)) continue;
1043
1044 $result = db_query("SELECT id FROM ttrss_tags
1045 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1046 owner_uid = '$owner_uid' LIMIT 1");
1047
1048 if ($result && db_num_rows($result) == 0) {
1049
1050 db_query("INSERT INTO ttrss_tags
1051 (owner_uid,tag_name,post_int_id)
1052 VALUES ('$owner_uid','$tag', '$entry_int_id')");
1053 }
1054
1055 array_push($tags_to_cache, $tag);
1056 }
1057
1058 /* update the cache */
1059
1060 $tags_to_cache = array_unique($tags_to_cache);
1061
1062 $tags_str = db_escape_string(join(",", $tags_to_cache));
1063
1064 db_query("UPDATE ttrss_user_entries
1065 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1066 AND owner_uid = $owner_uid");
1067
1068 db_query("COMMIT");
1069 }
1070
1071 if (get_pref("AUTO_ASSIGN_LABELS", $owner_uid, false)) {
1072 _debug("auto-assigning labels...", $debug_enabled);
1073
1074 foreach ($labels as $label) {
1075 $caption = preg_quote($label["caption"]);
1076
1077 if ($caption && preg_match("/\b$caption\b/i", "$tags_str " . strip_tags($entry_content) . " $entry_title")) {
1078 if (!labels_contains_caption($article_labels, $caption)) {
1079 label_add_article($entry_ref_id, $caption, $owner_uid);
1080 }
1081 }
1082 }
1083 }
1084
1085 _debug("article processed", $debug_enabled);
1086 }
1087
1088 if (!$last_updated) {
1089 _debug("new feed, catching it up...", $debug_enabled);
1090 catchup_feed($feed, false, $owner_uid);
1091 }
1092
1093 _debug("purging feed...", $debug_enabled);
1094
1095 purge_feed($feed, 0, $debug_enabled);
1096
1097 db_query("UPDATE ttrss_feeds
1098 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1099
1100 // db_query("COMMIT");
1101
1102 } else {
1103
1104 $error_msg = db_escape_string(mb_substr($rss->error(), 0, 245));
1105
1106 _debug("error fetching feed: $error_msg", $debug_enabled);
1107
1108 db_query(
1109 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1110 last_updated = NOW() WHERE id = '$feed'");
1111 }
1112
1113 unset($rss);
1114
1115 _debug("done", $debug_enabled);
1116 }
1117
1118 function cache_images($html, $site_url, $debug) {
1119 $cache_dir = CACHE_DIR . "/images";
1120
1121 libxml_use_internal_errors(true);
1122
1123 $charset_hack = '<head>
1124 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
1125 </head>';
1126
1127 $doc = new DOMDocument();
1128 $doc->loadHTML($charset_hack . $html);
1129 $xpath = new DOMXPath($doc);
1130
1131 $entries = $xpath->query('(//img[@src])');
1132
1133 foreach ($entries as $entry) {
1134 if ($entry->hasAttribute('src')) {
1135 $src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
1136
1137 $local_filename = CACHE_DIR . "/images/" . sha1($src) . ".png";
1138
1139 if ($debug) _debug("cache_images: downloading: $src to $local_filename");
1140
1141 if (!file_exists($local_filename)) {
1142 $file_content = fetch_file_contents($src);
1143
1144 if ($file_content && strlen($file_content) > 1024) {
1145 file_put_contents($local_filename, $file_content);
1146 }
1147 }
1148
1149 if (file_exists($local_filename)) {
1150 $entry->setAttribute('src', SELF_URL_PATH . '/image.php?url=' .
1151 base64_encode($src));
1152 }
1153 }
1154 }
1155
1156 $node = $doc->getElementsByTagName('body')->item(0);
1157
1158 return $doc->saveXML($node);
1159 }
1160
1161 function expire_error_log($debug) {
1162 if ($debug) _debug("Removing old error log entries...");
1163
1164 if (DB_TYPE == "pgsql") {
1165 db_query("DELETE FROM ttrss_error_log
1166 WHERE created_at < NOW() - INTERVAL '7 days'");
1167 } else {
1168 db_query("DELETE FROM ttrss_error_log
1169 WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
1170 }
1171
1172 }
1173
1174 function expire_lock_files($debug) {
1175 //if ($debug) _debug("Removing old lock files...");
1176
1177 $num_deleted = 0;
1178
1179 if (is_writable(LOCK_DIRECTORY)) {
1180 $files = glob(LOCK_DIRECTORY . "/*.lock");
1181
1182 if ($files) {
1183 foreach ($files as $file) {
1184 if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
1185 unlink($file);
1186 ++$num_deleted;
1187 }
1188 }
1189 }
1190 }
1191
1192 if ($debug) _debug("Removed $num_deleted old lock files.");
1193 }
1194
1195 function expire_cached_files($debug) {
1196 foreach (array("simplepie", "images", "export", "upload") as $dir) {
1197 $cache_dir = CACHE_DIR . "/$dir";
1198
1199 // if ($debug) _debug("Expiring $cache_dir");
1200
1201 $num_deleted = 0;
1202
1203 if (is_writable($cache_dir)) {
1204 $files = glob("$cache_dir/*");
1205
1206 if ($files) {
1207 foreach ($files as $file) {
1208 if (time() - filemtime($file) > 86400*7) {
1209 unlink($file);
1210
1211 ++$num_deleted;
1212 }
1213 }
1214 }
1215 }
1216
1217 if ($debug) _debug("$cache_dir: removed $num_deleted files.");
1218 }
1219 }
1220
1221 /**
1222 * Source: http://www.php.net/manual/en/function.parse-url.php#104527
1223 * Returns the url query as associative array
1224 *
1225 * @param string query
1226 * @return array params
1227 */
1228 function convertUrlQuery($query) {
1229 $queryParts = explode('&', $query);
1230
1231 $params = array();
1232
1233 foreach ($queryParts as $param) {
1234 $item = explode('=', $param);
1235 $params[$item[0]] = $item[1];
1236 }
1237
1238 return $params;
1239 }
1240
1241 function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1242 $matches = array();
1243
1244 foreach ($filters as $filter) {
1245 $match_any_rule = $filter["match_any_rule"];
1246 $inverse = $filter["inverse"];
1247 $filter_match = false;
1248
1249 foreach ($filter["rules"] as $rule) {
1250 $match = false;
1251 $reg_exp = str_replace('/', '\/', $rule["reg_exp"]);
1252 $rule_inverse = $rule["inverse"];
1253
1254 if (!$reg_exp)
1255 continue;
1256
1257 switch ($rule["type"]) {
1258 case "title":
1259 $match = @preg_match("/$reg_exp/i", $title);
1260 break;
1261 case "content":
1262 // we don't need to deal with multiline regexps
1263 $content = preg_replace("/[\r\n\t]/", "", $content);
1264
1265 $match = @preg_match("/$reg_exp/i", $content);
1266 break;
1267 case "both":
1268 // we don't need to deal with multiline regexps
1269 $content = preg_replace("/[\r\n\t]/", "", $content);
1270
1271 $match = (@preg_match("/$reg_exp/i", $title) || @preg_match("/$reg_exp/i", $content));
1272 break;
1273 case "link":
1274 $match = @preg_match("/$reg_exp/i", $link);
1275 break;
1276 case "author":
1277 $match = @preg_match("/$reg_exp/i", $author);
1278 break;
1279 case "tag":
1280 foreach ($tags as $tag) {
1281 if (@preg_match("/$reg_exp/i", $tag)) {
1282 $match = true;
1283 break;
1284 }
1285 }
1286 break;
1287 }
1288
1289 if ($rule_inverse) $match = !$match;
1290
1291 if ($match_any_rule) {
1292 if ($match) {
1293 $filter_match = true;
1294 break;
1295 }
1296 } else {
1297 $filter_match = $match;
1298 if (!$match) {
1299 break;
1300 }
1301 }
1302 }
1303
1304 if ($inverse) $filter_match = !$filter_match;
1305
1306 if ($filter_match) {
1307 foreach ($filter["actions"] AS $action) {
1308 array_push($matches, $action);
1309
1310 // if Stop action encountered, perform no further processing
1311 if ($action["type"] == "stop") return $matches;
1312 }
1313 }
1314 }
1315
1316 return $matches;
1317 }
1318
1319 function find_article_filter($filters, $filter_name) {
1320 foreach ($filters as $f) {
1321 if ($f["type"] == $filter_name) {
1322 return $f;
1323 };
1324 }
1325 return false;
1326 }
1327
1328 function find_article_filters($filters, $filter_name) {
1329 $results = array();
1330
1331 foreach ($filters as $f) {
1332 if ($f["type"] == $filter_name) {
1333 array_push($results, $f);
1334 };
1335 }
1336 return $results;
1337 }
1338
1339 function calculate_article_score($filters) {
1340 $score = 0;
1341
1342 foreach ($filters as $f) {
1343 if ($f["type"] == "score") {
1344 $score += $f["param"];
1345 };
1346 }
1347 return $score;
1348 }
1349
1350 function labels_contains_caption($labels, $caption) {
1351 foreach ($labels as $label) {
1352 if ($label[1] == $caption) {
1353 return true;
1354 }
1355 }
1356
1357 return false;
1358 }
1359
1360 function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
1361 foreach ($filters as $f) {
1362 if ($f["type"] == "label") {
1363 if (!labels_contains_caption($article_labels, $f["param"])) {
1364 label_add_article($id, $f["param"], $owner_uid);
1365 }
1366 }
1367 }
1368 }
1369
1370 function make_guid_from_title($title) {
1371 return preg_replace("/[ \"\',.:;]/", "-",
1372 mb_strtolower(strip_tags($title), 'utf-8'));
1373 }
1374
1375 function verify_feed_xml($feed_data) {
1376 libxml_use_internal_errors(true);
1377 $doc = new DOMDocument();
1378 $doc->loadXML($feed_data);
1379 $error = libxml_get_last_error();
1380 libxml_clear_errors();
1381 return $error;
1382 }
1383
1384 function housekeeping_common($debug) {
1385 expire_cached_files($debug);
1386 expire_lock_files($debug);
1387 expire_error_log($debug);
1388
1389 $count = update_feedbrowser_cache();
1390 _debug("Feedbrowser updated, $count feeds processed.");
1391
1392 purge_orphans( true);
1393 $rc = cleanup_tags( 14, 50000);
1394
1395 _debug("Cleaned $rc cached tags.");
1396 }
1397
1398 function utf8_entity_decode($entity){
1399 $convmap = array(0x0, 0x10000, 0, 0xfffff);
1400 return mb_decode_numericentity($entity, $convmap, 'UTF-8');
1401 }
1402
1403 function decode_numeric_entities($body) {
1404 $body = preg_replace('/&#\d{2,5};/ue', "utf8_entity_decode('$0')", $body );
1405 $body = preg_replace('/&#x([a-fA-F0-7]{2,8});/ue', "utf8_entity_decode('&#'.hexdec('$1').';')", $body );
1406 return $body;
1407 }
1408 ?>
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/