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rssutils: PDO
[tt-rss.git] / classes / rssutils.php
1 <?php
2 class RSSUtils {
3 static function calculate_article_hash($article, $pluginhost) {
4 $tmp = "";
5
6 foreach ($article as $k => $v) {
7 if ($k != "feed" && isset($v)) {
8 $x = strip_tags(is_array($v) ? implode(",", $v) : $v);
9
10 //_debug("$k:" . sha1($x) . ":" . htmlspecialchars($x), true);
11
12 $tmp .= sha1("$k:" . sha1($x));
13 }
14 }
15
16 return sha1(implode(",", $pluginhost->get_plugin_names()) . $tmp);
17 }
18
19 static function update_feedbrowser_cache() {
20
21 $pdo = Db::pdo();
22
23 $sth = $pdo->query("SELECT feed_url, site_url, title, COUNT(id) AS subscribers
24 FROM ttrss_feeds WHERE feed_url NOT IN (SELECT feed_url FROM ttrss_feeds
25 WHERE private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%')
26 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
27
28 $pdo->beginTransaction();
29
30 $pdo->query("DELETE FROM ttrss_feedbrowser_cache");
31
32 $count = 0;
33
34 while ($line = $sth->fetch()) {
35
36 $subscribers = $line["subscribers"];
37 $feed_url = $line["feed_url"];
38 $title = $line["title"];
39 $site_url = $line["site_url"];
40
41 $tmph = $pdo->prepare("SELECT subscribers FROM
42 ttrss_feedbrowser_cache WHERE feed_url = ?");
43 $tmph->execute([$feed_url]);
44
45 if (!$tmph->fetch()) {
46
47 $tmph = $pdo->prepare("INSERT INTO ttrss_feedbrowser_cache
48 (feed_url, site_url, title, subscribers)
49 VALUES
50 (?, ?, ?, ?)");
51
52 $tmph->execute([$feed_url, $site_url, $title, $subscribers]);
53
54 ++$count;
55
56 }
57
58 }
59
60 $pdo->commit();
61
62 return $count;
63
64 }
65
66 static function update_daemon_common($limit = DAEMON_FEED_LIMIT, $debug = true) {
67 $schema_version = get_schema_version();
68
69 if ($schema_version != SCHEMA_VERSION) {
70 die("Schema version is wrong, please upgrade the database.\n");
71 }
72
73 $pdo = Db::pdo();
74
75 if (!SINGLE_USER_MODE && DAEMON_UPDATE_LOGIN_LIMIT > 0) {
76 if (DB_TYPE == "pgsql") {
77 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
78 } else {
79 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
80 }
81 } else {
82 $login_thresh_qpart = "";
83 }
84
85 if (DB_TYPE == "pgsql") {
86 $update_limit_qpart = "AND ((
87 ttrss_feeds.update_interval = 0
88 AND ttrss_user_prefs.value != '-1'
89 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
90 ) OR (
91 ttrss_feeds.update_interval > 0
92 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
93 ) OR (ttrss_feeds.last_updated IS NULL
94 AND ttrss_user_prefs.value != '-1')
95 OR (last_updated = '1970-01-01 00:00:00'
96 AND ttrss_user_prefs.value != '-1'))";
97 } else {
98 $update_limit_qpart = "AND ((
99 ttrss_feeds.update_interval = 0
100 AND ttrss_user_prefs.value != '-1'
101 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
102 ) OR (
103 ttrss_feeds.update_interval > 0
104 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
105 ) OR (ttrss_feeds.last_updated IS NULL
106 AND ttrss_user_prefs.value != '-1')
107 OR (last_updated = '1970-01-01 00:00:00'
108 AND ttrss_user_prefs.value != '-1'))";
109 }
110
111 // Test if feed is currently being updated by another process.
112 if (DB_TYPE == "pgsql") {
113 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '10 minutes')";
114 } else {
115 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 10 MINUTE))";
116 }
117
118 $query_limit = $limit ? sprintf("LIMIT %d", $limit) : "";
119
120 // Update the least recently updated feeds first
121 $query_order = "ORDER BY last_updated";
122 if (DB_TYPE == "pgsql") $query_order .= " NULLS FIRST";
123
124 $query = "SELECT DISTINCT ttrss_feeds.feed_url, ttrss_feeds.last_updated
125 FROM
126 ttrss_feeds, ttrss_users, ttrss_user_prefs
127 WHERE
128 ttrss_feeds.owner_uid = ttrss_users.id
129 AND ttrss_user_prefs.profile IS NULL
130 AND ttrss_users.id = ttrss_user_prefs.owner_uid
131 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
132 $login_thresh_qpart $update_limit_qpart
133 $updstart_thresh_qpart
134 $query_order $query_limit";
135
136 $res = $pdo->query($query);
137
138 $feeds_to_update = array();
139 while ($line = $res->fetch()) {
140 array_push($feeds_to_update, $line['feed_url']);
141 }
142
143 if ($debug) _debug(sprintf("Scheduled %d feeds to update...", count($feeds_to_update)));
144
145 // Update last_update_started before actually starting the batch
146 // in order to minimize collision risk for parallel daemon tasks
147 if (count($feeds_to_update) > 0) {
148 $feeds_qmarks = arr_qmarks($feeds_to_update);
149
150 $tmph = $pdo->prepare("UPDATE ttrss_feeds SET last_update_started = NOW()
151 WHERE feed_url IN ($feeds_qmarks)");
152 $tmph->execute($feeds_to_update);
153 }
154
155 $nf = 0;
156 $bstarted = microtime(true);
157
158 $batch_owners = array();
159
160 // since we have the data cached, we can deal with other feeds with the same url
161 $usth = $pdo->prepare("SELECT DISTINCT ttrss_feeds.id,last_updated,ttrss_feeds.owner_uid
162 FROM ttrss_feeds, ttrss_users, ttrss_user_prefs WHERE
163 ttrss_user_prefs.owner_uid = ttrss_feeds.owner_uid AND
164 ttrss_users.id = ttrss_user_prefs.owner_uid AND
165 ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL' AND
166 ttrss_user_prefs.profile IS NULL AND
167 feed_url = ?
168 $update_limit_qpart
169 $login_thresh_qpart
170 ORDER BY ttrss_feeds.id $query_limit");
171
172 foreach ($feeds_to_update as $feed) {
173 if($debug) _debug("Base feed: $feed");
174
175 $usth->execute([$feed]);
176 //update_rss_feed($line["id"], true);
177
178 if ($tline = $usth->fetch()) {
179 if ($debug) _debug(" => " . $tline["last_updated"] . ", " . $tline["id"] . " " . $tline["owner_uid"]);
180
181 if (array_search($tline["owner_uid"], $batch_owners) === FALSE)
182 array_push($batch_owners, $tline["owner_uid"]);
183
184 $fstarted = microtime(true);
185 RSSUtils::update_rss_feed($tline["id"], true, false);
186 _debug_suppress(false);
187
188 _debug(sprintf(" %.4f (sec)", microtime(true) - $fstarted));
189
190 ++$nf;
191 }
192 }
193
194 if ($nf > 0) {
195 _debug(sprintf("Processed %d feeds in %.4f (sec), %.4f (sec/feed avg)", $nf,
196 microtime(true) - $bstarted, (microtime(true) - $bstarted) / $nf));
197 }
198
199 foreach ($batch_owners as $owner_uid) {
200 _debug("Running housekeeping tasks for user $owner_uid...");
201
202 RSSUtils::housekeeping_user($owner_uid);
203 }
204
205 // Send feed digests by email if needed.
206 Digest::send_headlines_digests($debug);
207
208 return $nf;
209 }
210
211 // this is used when subscribing
212 static function set_basic_feed_info($feed) {
213
214 $pdo = Db::pdo();
215
216 $sth = $pdo->prepare("SELECT owner_uid,feed_url,auth_pass,auth_login,auth_pass_encrypted
217 FROM ttrss_feeds WHERE id = ?");
218 $sth->execute([$feed]);
219
220 if ($row = $sth->fetch()) {
221
222 $owner_uid = $row["owner_uid"];
223
224 $auth_pass_encrypted = sql_bool_to_bool($row["auth_pass_encrypted"]);
225
226 $auth_login = $row["auth_login"];
227 $auth_pass = $row["auth_pass"];
228
229 if ($auth_pass_encrypted && function_exists("mcrypt_decrypt")) {
230 require_once "crypt.php";
231 $auth_pass = decrypt_string($auth_pass);
232 }
233
234 $fetch_url = $row["feed_url"];
235
236 $pluginhost = new PluginHost();
237 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
238
239 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
240 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
241 $pluginhost->load_data();
242
243 $basic_info = array();
244 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_BASIC_INFO) as $plugin) {
245 $basic_info = $plugin->hook_feed_basic_info($basic_info, $fetch_url, $owner_uid, $feed, $auth_login, $auth_pass);
246 }
247
248 if (!$basic_info) {
249 $feed_data = fetch_file_contents($fetch_url, false,
250 $auth_login, $auth_pass, false,
251 FEED_FETCH_TIMEOUT,
252 0);
253
254 global $fetch_curl_used;
255
256 if (!$fetch_curl_used) {
257 $tmp = @gzdecode($feed_data);
258
259 if ($tmp) $feed_data = $tmp;
260 }
261
262 $feed_data = trim($feed_data);
263
264 $rss = new FeedParser($feed_data);
265 $rss->init();
266
267 if (!$rss->error()) {
268 $basic_info = array(
269 'title' => mb_substr($rss->get_title(), 0, 199),
270 'site_url' => mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245)
271 );
272 }
273 }
274
275 if ($basic_info && is_array($basic_info)) {
276 $sth = $pdo->prepare("SELECT title, site_url FROM ttrss_feeds WHERE id = ?");
277 $sth->execute([$feed]);
278
279 if ($row = $sth->fetch()) {
280
281 $registered_title = $row["title"];
282 $orig_site_url = $row["site_url"];
283
284 if ($basic_info['title'] && (!$registered_title || $registered_title == "[Unknown]")) {
285
286 $sth = $pdo->prepare("UPDATE ttrss_feeds SET
287 title = ? WHERE id = ?");
288 $sth->execute([$basic_info['title'], $feed]);
289 }
290
291 if ($basic_info['site_url'] && $orig_site_url != $basic_info['site_url']) {
292 $sth = $pdo->prepare("UPDATE ttrss_feeds SET
293 site_url = ? WHERE id = ?");
294 $sth->execute([$basic_info['site_url'], $feed]);
295 }
296
297 }
298 }
299 }
300 }
301
302 /**
303 * @SuppressWarnings(PHPMD.UnusedFormalParameter)
304 */
305 static function update_rss_feed($feed, $no_cache = false) {
306
307 $debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
308
309 _debug_suppress(!$debug_enabled);
310 _debug("start", $debug_enabled);
311
312 $pdo = Db::pdo();
313
314 $sth = $pdo->prepare("SELECT title FROM ttrss_feeds WHERE id = ?");
315 $sth->execute([$feed]);
316
317 if (!$row = $sth->fetch()) {
318 _debug("feed $feed NOT FOUND/SKIPPED", $debug_enabled);
319 user_error("Attempt to update unknown/invalid feed $feed", E_USER_WARNING);
320 return false;
321 }
322
323 $title = $row["title"];
324
325 // feed was batch-subscribed or something, we need to get basic info
326 // this is not optimal currently as it fetches stuff separately TODO: optimize
327 if ($title == "[Unknown]") {
328 _debug("setting basic feed info for $feed...");
329 RSSUtils::set_basic_feed_info($feed);
330 }
331
332 $sth = $pdo->prepare("SELECT id,update_interval,auth_login,
333 feed_url,auth_pass,cache_images,
334 mark_unread_on_update, owner_uid,
335 auth_pass_encrypted, feed_language,
336 last_modified,
337 ".SUBSTRING_FOR_DATE."(last_unconditional, 1, 19) AS last_unconditional
338 FROM ttrss_feeds WHERE id = ?");
339 $sth->execute([$feed]);
340
341 if ($row = $sth->fetch()) {
342
343 $owner_uid = $row["owner_uid"];
344 $mark_unread_on_update = sql_bool_to_bool($row["mark_unread_on_update"]);
345 $auth_pass_encrypted = sql_bool_to_bool($row["auth_pass_encrypted"]);
346
347 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_update_started = NOW()
348 WHERE id = ?");
349 $sth->execute([$feed]);
350
351 $auth_login = $row["auth_login"];
352 $auth_pass = $row["auth_pass"];
353
354 if ($auth_pass_encrypted && function_exists("mcrypt_decrypt")) {
355 require_once "crypt.php";
356 $auth_pass = decrypt_string($auth_pass);
357 }
358
359 $stored_last_modified = $row["last_modified"];
360 $last_unconditional = $row["last_unconditional"];
361 $cache_images = sql_bool_to_bool($row["cache_images"]);
362 $fetch_url = $row["feed_url"];
363 $feed_language = mb_strtolower($row["feed_language"]);
364 if (!$feed_language) $feed_language = 'english';
365
366 } else {
367 return false;
368 }
369
370 $date_feed_processed = date('Y-m-d H:i');
371
372 $cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url) . ".xml";
373
374 $pluginhost = new PluginHost();
375 $pluginhost->set_debug($debug_enabled);
376 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
377
378 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
379 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
380 $pluginhost->load_data();
381
382 $rss_hash = false;
383
384 $force_refetch = isset($_REQUEST["force_refetch"]);
385 $feed_data = "";
386
387 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FETCH_FEED) as $plugin) {
388 $feed_data = $plugin->hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, 0, $auth_login, $auth_pass);
389 }
390
391 // try cache
392 if (!$feed_data &&
393 file_exists($cache_filename) &&
394 is_readable($cache_filename) &&
395 !$auth_login && !$auth_pass &&
396 filemtime($cache_filename) > time() - 30) {
397
398 _debug("using local cache [$cache_filename].", $debug_enabled);
399
400 @$feed_data = file_get_contents($cache_filename);
401
402 if ($feed_data) {
403 $rss_hash = sha1($feed_data);
404 }
405
406 } else {
407 _debug("local cache will not be used for this feed", $debug_enabled);
408 }
409
410 global $fetch_last_modified;
411
412 // fetch feed from source
413 if (!$feed_data) {
414 _debug("last unconditional update request: $last_unconditional");
415
416 if (ini_get("open_basedir") && function_exists("curl_init")) {
417 _debug("not using CURL due to open_basedir restrictions");
418 }
419
420 if (time() - strtotime($last_unconditional) > MAX_CONDITIONAL_INTERVAL) {
421 _debug("maximum allowed interval for conditional requests exceeded, forcing refetch");
422
423 $force_refetch = true;
424 } else {
425 _debug("stored last modified for conditional request: $stored_last_modified", $debug_enabled);
426 }
427
428 _debug("fetching [$fetch_url] (force_refetch: $force_refetch)...", $debug_enabled);
429
430 $feed_data = fetch_file_contents([
431 "url" => $fetch_url,
432 "login" => $auth_login,
433 "pass" => $auth_pass,
434 "timeout" => $no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
435 "last_modified" => $force_refetch ? "" : $stored_last_modified
436 ]);
437
438 global $fetch_curl_used;
439
440 if (!$fetch_curl_used) {
441 $tmp = @gzdecode($feed_data);
442
443 if ($tmp) $feed_data = $tmp;
444 }
445
446 $feed_data = trim($feed_data);
447
448 _debug("fetch done.", $debug_enabled);
449 _debug("source last modified: " . $fetch_last_modified, $debug_enabled);
450
451 if ($feed_data && $fetch_last_modified != $stored_last_modified) {
452 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_modified = ? WHERE id = ?");
453 $sth->execute([substr($fetch_last_modified, 0, 245), $feed]);
454 }
455
456 // cache vanilla feed data for re-use
457 if ($feed_data && !$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/simplepie")) {
458 $new_rss_hash = sha1($feed_data);
459
460 if ($new_rss_hash != $rss_hash) {
461 _debug("saving $cache_filename", $debug_enabled);
462 @file_put_contents($cache_filename, $feed_data);
463 }
464 }
465 }
466
467 if (!$feed_data) {
468 global $fetch_last_error;
469 global $fetch_last_error_code;
470
471 _debug("unable to fetch: $fetch_last_error [$fetch_last_error_code]", $debug_enabled);
472
473 // If-Modified-Since
474 if ($fetch_last_error_code != 304) {
475 $error_message = $fetch_last_error;
476 } else {
477 _debug("source claims data not modified, nothing to do.", $debug_enabled);
478 $error_message = "";
479 }
480
481 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_error = ?,
482 last_updated = NOW() WHERE id = ?");
483 $sth->execute([$error_message, $feed]);
484
485 return;
486 }
487
488 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_FETCHED) as $plugin) {
489 $feed_data = $plugin->hook_feed_fetched($feed_data, $fetch_url, $owner_uid, $feed);
490 }
491
492 $rss = new FeedParser($feed_data);
493 $rss->init();
494
495 $feed = $feed;
496
497 if (!$rss->error()) {
498
499 // We use local pluginhost here because we need to load different per-user feed plugins
500 $pluginhost->run_hooks(PluginHost::HOOK_FEED_PARSED, "hook_feed_parsed", $rss);
501
502 _debug("language: $feed_language", $debug_enabled);
503 _debug("processing feed data...", $debug_enabled);
504
505 if (DB_TYPE == "pgsql") {
506 $favicon_interval_qpart = "favicon_last_checked < NOW() - INTERVAL '12 hour'";
507 } else {
508 $favicon_interval_qpart = "favicon_last_checked < DATE_SUB(NOW(), INTERVAL 12 HOUR)";
509 }
510
511 $sth = $pdo->prepare("SELECT owner_uid,favicon_avg_color,
512 (favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
513 favicon_needs_check
514 FROM ttrss_feeds WHERE id = ?");
515 $sth->execute([$feed]);
516
517 if ($row = $sth->fetch()) {
518 $favicon_needs_check = sql_bool_to_bool($row["favicon_needs_check"]);
519 $favicon_avg_color = $row["favicon_avg_color"];
520 $owner_uid = $row["owner_uid"];
521 } else {
522 return false;
523 }
524
525 $site_url = mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245);
526
527 _debug("site_url: $site_url", $debug_enabled);
528 _debug("feed_title: " . $rss->get_title(), $debug_enabled);
529
530 if ($favicon_needs_check || $force_refetch) {
531
532 /* terrible hack: if we crash on floicon shit here, we won't check
533 * the icon avgcolor again (unless the icon got updated) */
534
535 $favicon_file = ICONS_DIR . "/$feed.ico";
536 $favicon_modified = @filemtime($favicon_file);
537
538 _debug("checking favicon...", $debug_enabled);
539
540 RSSUtils::check_feed_favicon($site_url, $feed);
541 $favicon_modified_new = @filemtime($favicon_file);
542
543 if ($favicon_modified_new > $favicon_modified)
544 $favicon_avg_color = '';
545
546 $favicon_colorstring = "";
547 if (file_exists($favicon_file) && function_exists("imagecreatefromstring") && $favicon_avg_color == '') {
548 require_once "colors.php";
549
550 $sth = $pdo->prepare("UPDATE ttrss_feeds SET favicon_avg_color = 'fail' WHERE
551 id = ?");
552 $sth->execute([$feed]);
553
554 $favicon_color = calculate_avg_color($favicon_file);
555
556 $favicon_colorstring = ",favicon_avg_color = " . $pdo->quote($favicon_color);
557
558 } else if ($favicon_avg_color == 'fail') {
559 _debug("floicon failed on this file, not trying to recalculate avg color", $debug_enabled);
560 }
561
562 $sth = $pdo->prepare("UPDATE ttrss_feeds SET favicon_last_checked = NOW()
563 $favicon_colorstring WHERE id = ?");
564 $sth->execute([$feed]);
565 }
566
567 _debug("loading filters & labels...", $debug_enabled);
568
569 $filters = load_filters($feed, $owner_uid);
570
571 if ($debug_enabled) {
572 print_r($filters);
573 }
574
575 _debug("" . count($filters) . " filters loaded.", $debug_enabled);
576
577 $items = $rss->get_items();
578
579 if (!is_array($items)) {
580 _debug("no articles found.", $debug_enabled);
581
582 $sth = $pdo->prepare("UPDATE ttrss_feeds
583 SET last_updated = NOW(), last_unconditional = NOW(), last_error = '' WHERE id = ?");
584 $sth->execute([$feed]);
585
586 return true; // no articles
587 }
588
589 _debug("processing articles...", $debug_enabled);
590
591 $tstart = time();
592
593 foreach ($items as $item) {
594 if ($_REQUEST['xdebug'] == 3) {
595 print_r($item);
596 }
597
598 if (ini_get("max_execution_time") > 0 && time() - $tstart >= ini_get("max_execution_time") * 0.7) {
599 _debug("looks like there's too many articles to process at once, breaking out", $debug_enabled);
600 break;
601 }
602
603 $entry_guid = strip_tags($item->get_id());
604 if (!$entry_guid) $entry_guid = strip_tags($item->get_link());
605 if (!$entry_guid) $entry_guid = RSSUtils::make_guid_from_title($item->get_title());
606 if (!$entry_guid) continue;
607
608 $entry_guid = "$owner_uid,$entry_guid";
609
610 $entry_guid_hashed = 'SHA1:' . sha1($entry_guid);
611
612 _debug("guid $entry_guid / $entry_guid_hashed", $debug_enabled);
613
614 $entry_timestamp = strip_tags($item->get_date());
615
616 _debug("orig date: " . $item->get_date(), $debug_enabled);
617
618 if ($entry_timestamp == -1 || !$entry_timestamp || $entry_timestamp > time()) {
619 $entry_timestamp = time();
620 }
621
622 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
623
624 _debug("date $entry_timestamp [$entry_timestamp_fmt]", $debug_enabled);
625
626 $entry_title = strip_tags($item->get_title());
627
628 $entry_link = rewrite_relative_url($site_url, $item->get_link());
629
630 _debug("title $entry_title", $debug_enabled);
631 _debug("link $entry_link", $debug_enabled);
632
633 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
634
635 $entry_content = $item->get_content();
636 if (!$entry_content) $entry_content = $item->get_description();
637
638 if ($_REQUEST["xdebug"] == 2) {
639 print "content: ";
640 print htmlspecialchars($entry_content);
641 print "\n";
642 }
643
644 $entry_comments = mb_substr(strip_tags($item->get_comments_url()), 0, 245);
645 $num_comments = (int) $item->get_comments_count();
646
647 $entry_author = strip_tags($item->get_author());
648 $entry_guid = mb_substr($entry_guid, 0, 245);
649
650 _debug("author $entry_author", $debug_enabled);
651 _debug("num_comments: $num_comments", $debug_enabled);
652 _debug("looking for tags...", $debug_enabled);
653
654 // parse <category> entries into tags
655
656 $additional_tags = array();
657
658 $additional_tags_src = $item->get_categories();
659
660 if (is_array($additional_tags_src)) {
661 foreach ($additional_tags_src as $tobj) {
662 array_push($additional_tags, $tobj);
663 }
664 }
665
666 $entry_tags = array_unique($additional_tags);
667
668 for ($i = 0; $i < count($entry_tags); $i++)
669 $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
670
671 _debug("tags found: " . join(",", $entry_tags), $debug_enabled);
672
673 _debug("done collecting data.", $debug_enabled);
674
675 $sth = $pdo->prepare("SELECT id, content_hash, lang FROM ttrss_entries
676 WHERE guid = ? OR guid = ?");
677 $sth->execute([$entry_guid, $entry_guid_hashed]);
678
679 if ($row = $sth->fetch()) {
680 $base_entry_id = $row["id"];
681 $entry_stored_hash = $row["content_hash"];
682 $article_labels = Article::get_article_labels($base_entry_id, $owner_uid);
683 $entry_language = $row["lang"];
684
685 $existing_tags = Article::get_article_tags($base_entry_id, $owner_uid);
686 $entry_tags = array_unique(array_merge($entry_tags, $existing_tags));
687 } else {
688 $base_entry_id = false;
689 $entry_stored_hash = "";
690 $article_labels = array();
691 $entry_language = "";
692 }
693
694 $article = array("owner_uid" => $owner_uid, // read only
695 "guid" => $entry_guid, // read only
696 "guid_hashed" => $entry_guid_hashed, // read only
697 "title" => $entry_title,
698 "content" => $entry_content,
699 "link" => $entry_link,
700 "labels" => $article_labels, // current limitation: can add labels to article, can't remove them
701 "tags" => $entry_tags,
702 "author" => $entry_author,
703 "force_catchup" => false, // ugly hack for the time being
704 "score_modifier" => 0, // no previous value, plugin should recalculate score modifier based on content if needed
705 "language" => $entry_language,
706 "num_comments" => $num_comments, // read only
707 "feed" => array("id" => $feed,
708 "fetch_url" => $fetch_url,
709 "site_url" => $site_url,
710 "cache_images" => $cache_images)
711 );
712
713 $entry_plugin_data = "";
714 $entry_current_hash = RSSUtils::calculate_article_hash($article, $pluginhost);
715
716 _debug("article hash: $entry_current_hash [stored=$entry_stored_hash]", $debug_enabled);
717
718 if ($entry_current_hash == $entry_stored_hash && !isset($_REQUEST["force_rehash"])) {
719 _debug("stored article seems up to date [IID: $base_entry_id], updating timestamp only", $debug_enabled);
720
721 // we keep encountering the entry in feeds, so we need to
722 // update date_updated column so that we don't get horrible
723 // dupes when the entry gets purged and reinserted again e.g.
724 // in the case of SLOW SLOW OMG SLOW updating feeds
725
726 $sth = $pdo->prepare("UPDATE ttrss_entries SET date_updated = NOW()
727 WHERE id = ?");
728 $sth->execute([$base_entry_id]);
729
730 continue;
731 }
732
733 _debug("hash differs, applying plugin filters:", $debug_enabled);
734
735 foreach ($pluginhost->get_hooks(PluginHost::HOOK_ARTICLE_FILTER) as $plugin) {
736 _debug("... " . get_class($plugin), $debug_enabled);
737
738 $start = microtime(true);
739 $article = $plugin->hook_article_filter($article);
740
741 _debug("=== " . sprintf("%.4f (sec)", microtime(true) - $start), $debug_enabled);
742
743 $entry_plugin_data .= mb_strtolower(get_class($plugin)) . ",";
744 }
745
746 if ($_REQUEST["xdebug"] == 2) {
747 print "processed content: ";
748 print htmlspecialchars($article["content"]);
749 print "\n";
750 }
751
752 _debug("plugin data: $entry_plugin_data", $debug_enabled);
753
754 // Workaround: 4-byte unicode requires utf8mb4 in MySQL. See https://tt-rss.org/forum/viewtopic.php?f=1&t=3377&p=20077#p20077
755 if (DB_TYPE == "mysql") {
756 foreach ($article as $k => $v) {
757
758 // i guess we'll have to take the risk of 4byte unicode labels & tags here
759 if (is_string($article[$k])) {
760 $article[$k] = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $v);
761 }
762 }
763 }
764
765 /* Collect article tags here so we could filter by them: */
766
767 $matched_rules = array();
768
769 $article_filters = RSSUtils::get_article_filters($filters, $article["title"],
770 $article["content"], $article["link"], $article["author"],
771 $article["tags"], $matched_rules);
772
773 if ($debug_enabled) {
774 _debug("matched filter rules: ", $debug_enabled);
775
776 if (count($matched_rules) != 0) {
777 print_r($matched_rules);
778 }
779
780 _debug("filter actions: ", $debug_enabled);
781
782 if (count($article_filters) != 0) {
783 print_r($article_filters);
784 }
785 }
786
787 $plugin_filter_names = RSSUtils::find_article_filters($article_filters, "plugin");
788 $plugin_filter_actions = $pluginhost->get_filter_actions();
789
790 if (count($plugin_filter_names) > 0) {
791 _debug("applying plugin filter actions...", $debug_enabled);
792
793 foreach ($plugin_filter_names as $pfn) {
794 list($pfclass,$pfaction) = explode(":", $pfn["param"]);
795
796 if (isset($plugin_filter_actions[$pfclass])) {
797 $plugin = $pluginhost->get_plugin($pfclass);
798
799 _debug("... $pfclass: $pfaction", $debug_enabled);
800
801 if ($plugin) {
802 $start = microtime(true);
803 $article = $plugin->hook_article_filter_action($article, $pfaction);
804
805 _debug("=== " . sprintf("%.4f (sec)", microtime(true) - $start), $debug_enabled);
806 } else {
807 _debug("??? $pfclass: plugin object not found.");
808 }
809 } else {
810 _debug("??? $pfclass: filter plugin not registered.");
811 }
812 }
813 }
814
815 $entry_tags = $article["tags"];
816 $entry_title = strip_tags($article["title"]);
817 $entry_author = mb_substr(strip_tags($article["author"]), 0, 245);
818 $entry_link = strip_tags($article["link"]);
819 $entry_content = $article["content"]; // escaped below
820 $entry_force_catchup = $article["force_catchup"];
821 $article_labels = $article["labels"];
822 $entry_score_modifier = (int) $article["score_modifier"];
823 $entry_language = $article["language"];
824
825 if ($debug_enabled) {
826 _debug("article labels:", $debug_enabled);
827
828 if (count($article_labels) != 0) {
829 print_r($article_labels);
830 }
831 }
832
833 _debug("force catchup: $entry_force_catchup");
834
835 if ($cache_images && is_writable(CACHE_DIR . '/images'))
836 RSSUtils::cache_media($entry_content, $site_url, $debug_enabled);
837
838 $csth = $pdo->prepare("SELECT id FROM ttrss_entries
839 WHERE guid = ? OR guid = ?");
840 $csth->execute([$entry_guid, $entry_guid_hashed]);
841
842 if (!$row = $csth->fetch()) {
843
844 _debug("base guid [$entry_guid or $entry_guid_hashed] not found, creating...", $debug_enabled);
845
846 // base post entry does not exist, create it
847
848 $usth = $pdo->prepare(
849 "INSERT INTO ttrss_entries
850 (title,
851 guid,
852 link,
853 updated,
854 content,
855 content_hash,
856 no_orig_date,
857 date_updated,
858 date_entered,
859 comments,
860 num_comments,
861 plugin_data,
862 lang,
863 author)
864 VALUES
865 (?, ?, ?, ?, ?, ?,
866 false,
867 NOW(),
868 ?, ?, ?, ?, ?, ?)");
869
870 $usth->execute([$entry_title,
871 $entry_guid_hashed,
872 $entry_link,
873 $entry_timestamp_fmt,
874 $entry_content,
875 $entry_current_hash,
876 $date_feed_processed,
877 $entry_comments,
878 $num_comments,
879 $entry_plugin_data,
880 $entry_language,
881 $entry_author]);
882
883 }
884
885 $csth->execute([$entry_guid, $entry_guid_hashed]);
886
887 $entry_ref_id = 0;
888 $entry_int_id = 0;
889
890 if ($row = $csth->fetch()) {
891
892 _debug("base guid found, checking for user record", $debug_enabled);
893
894 $ref_id = $row['id'];
895 $entry_ref_id = $ref_id;
896
897 if (RSSUtils::find_article_filter($article_filters, "filter")) {
898 continue;
899 }
900
901 $score = RSSUtils::calculate_article_score($article_filters) + $entry_score_modifier;
902
903 _debug("initial score: $score [including plugin modifier: $entry_score_modifier]", $debug_enabled);
904
905 // check for user post link to main table
906
907 $sth = $pdo->prepare("SELECT ref_id, int_id FROM ttrss_user_entries WHERE
908 ref_id = ? AND owner_uid = ?");
909 $sth->execute([$ref_id, $owner_uid]);
910
911 // okay it doesn't exist - create user entry
912 if ($row = $sth->fetch()) {
913 $entry_ref_id = $row["ref_id"];
914 $entry_int_id = $row["int_id"];
915
916 _debug("user record FOUND: RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
917 } else {
918
919 _debug("user record not found, creating...", $debug_enabled);
920
921 if ($score >= -500 && !RSSUtils::find_article_filter($article_filters, 'catchup') && !$entry_force_catchup) {
922 $unread = 1;
923 $last_read_qpart = null;
924 } else {
925 $unread = 0;
926 $last_read_qpart = 'NOW()';
927 }
928
929 if (RSSUtils::find_article_filter($article_filters, 'mark') || $score > 1000) {
930 $marked = 1;
931 } else {
932 $marked = 0;
933 }
934
935 if (RSSUtils::find_article_filter($article_filters, 'publish')) {
936 $published = 1;
937 } else {
938 $published = 0;
939 }
940
941 $last_marked = ($marked == 'true') ? 'NOW()' : null;
942 $last_published = ($published == 'true') ? 'NOW()' : null;
943
944 $sth = $pdo->prepare(
945 "INSERT INTO ttrss_user_entries
946 (ref_id, owner_uid, feed_id, unread, last_read, marked,
947 published, score, tag_cache, label_cache, uuid,
948 last_marked, last_published)
949 VALUES (?, ?, ?, ?, ?, ?, ?, ?, '', '', '', ?, ?)");
950
951 $sth->execute([$ref_id, $owner_uid, $feed, $unread, $last_read_qpart, $marked,
952 $published, $score, $last_marked, $last_published]);
953
954 $sth = $pdo->prepare("SELECT int_id FROM ttrss_user_entries WHERE
955 ref_id = ? AND owner_uid = ? AND
956 feed_id = ? LIMIT 1");
957
958 $sth->execute([$ref_id, $owner_uid, $feed]);
959
960 if ($row = $sth->fetch())
961 $entry_int_id = $row['int_id'];
962 }
963
964 _debug("resulting RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
965
966 if (DB_TYPE == "pgsql") {
967 $tsvector_combined = mb_substr($entry_title . ' ' . strip_tags(str_replace('<', ' <', $entry_content)),
968 0, 1000000);
969
970 $tsvector_qpart = "tsvector_combined = to_tsvector('$feed_language', ".$pdo->quote($tsvector_combined)."),";
971
972 } else {
973 $tsvector_qpart = "";
974 }
975
976 $sth = $pdo->prepare("UPDATE ttrss_entries
977 SET title = ?,
978 content = ?,
979 content_hash = ?,
980 updated = ?,
981 $tsvector_qpart
982 num_comments = ?,
983 plugin_data = ?,
984 author = ?,
985 lang = ?
986 WHERE id = ?");
987
988 $sth->execute([$entry_title, $entry_content, $entry_current_hash, $entry_timestamp_fmt,
989 $num_comments, $entry_plugin_data, $entry_author, $entry_language, $ref_id]);
990
991 // update aux data
992 $sth = $pdo->prepare("UPDATE ttrss_user_entries
993 SET score = ? WHERE ref_id = ?");
994 $sth->execute([$score, $ref_id]);
995
996 if ($mark_unread_on_update) {
997 _debug("article updated, marking unread as requested.", $debug_enabled);
998
999 $sth = $pdo->prepare("UPDATE ttrss_user_entries
1000 SET last_read = null, unread = true WHERE ref_id = ?");
1001 $sth->execute([$ref_id]);
1002 }
1003 }
1004
1005 _debug("assigning labels [other]...", $debug_enabled);
1006
1007 foreach ($article_labels as $label) {
1008 Labels::add_article($entry_ref_id, $label[1], $owner_uid);
1009 }
1010
1011 _debug("assigning labels [filters]...", $debug_enabled);
1012
1013 RSSUtils::assign_article_to_label_filters($entry_ref_id, $article_filters,
1014 $owner_uid, $article_labels);
1015
1016 _debug("looking for enclosures...", $debug_enabled);
1017
1018 // enclosures
1019
1020 $enclosures = array();
1021
1022 $encs = $item->get_enclosures();
1023
1024 if (is_array($encs)) {
1025 foreach ($encs as $e) {
1026 $e_item = array(
1027 rewrite_relative_url($site_url, $e->link),
1028 $e->type, $e->length, $e->title, $e->width, $e->height);
1029 array_push($enclosures, $e_item);
1030 }
1031 }
1032
1033 if ($cache_images && is_writable(CACHE_DIR . '/images'))
1034 RSSUtils::cache_enclosures($enclosures, $site_url, $debug_enabled);
1035
1036 if ($debug_enabled) {
1037 _debug("article enclosures:", $debug_enabled);
1038 print_r($enclosures);
1039 }
1040
1041 $esth = $pdo->prepare("SELECT id FROM ttrss_enclosures
1042 WHERE content_url = ? AND post_id = ?");
1043
1044 $usth = $pdo->prepare("INSERT INTO ttrss_enclosures
1045 (content_url, content_type, title, duration, post_id, width, height) VALUES
1046 (?, ?, ?, ?, ?, ?, ?)");
1047
1048 foreach ($enclosures as $enc) {
1049 $enc_url = $enc[0];
1050 $enc_type = $enc[1];
1051 $enc_dur = $enc[2];
1052 $enc_title = $enc[3];
1053 $enc_width = intval($enc[4]);
1054 $enc_height = intval($enc[5]);
1055
1056 $esth->execute([$enc_url, $entry_ref_id]);
1057
1058 if (!$esth->fetch()) {
1059 $usth->execute([$enc_url, $enc_type, (string)$enc_title, $enc_dur, $entry_ref_id, $enc_width, $enc_height]);
1060 }
1061 }
1062
1063 // check for manual tags (we have to do it here since they're loaded from filters)
1064
1065 foreach ($article_filters as $f) {
1066 if ($f["type"] == "tag") {
1067
1068 $manual_tags = trim_array(explode(",", $f["param"]));
1069
1070 foreach ($manual_tags as $tag) {
1071 if (tag_is_valid($tag)) {
1072 array_push($entry_tags, $tag);
1073 }
1074 }
1075 }
1076 }
1077
1078 // Skip boring tags
1079
1080 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref(
1081 'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1082
1083 $filtered_tags = array();
1084 $tags_to_cache = array();
1085
1086 if ($entry_tags && is_array($entry_tags)) {
1087 foreach ($entry_tags as $tag) {
1088 if (array_search($tag, $boring_tags) === false) {
1089 array_push($filtered_tags, $tag);
1090 }
1091 }
1092 }
1093
1094 $filtered_tags = array_unique($filtered_tags);
1095
1096 if ($debug_enabled) {
1097 _debug("filtered article tags:", $debug_enabled);
1098 print_r($filtered_tags);
1099 }
1100
1101 // Save article tags in the database
1102
1103 if (count($filtered_tags) > 0) {
1104
1105 $tsth = $pdo->prepare("SELECT id FROM ttrss_tags
1106 WHERE tag_name = ? AND post_int_id = ? AND
1107 owner_uid = ? LIMIT 1");
1108
1109 $usth = $pdo->prepare("INSERT INTO ttrss_tags
1110 (owner_uid,tag_name,post_int_id)
1111 VALUES (?, ?, ?)");
1112
1113 foreach ($filtered_tags as $tag) {
1114
1115 $tag = sanitize_tag($tag);
1116
1117 if (!tag_is_valid($tag)) continue;
1118
1119 $tsth->execute([$tag, $entry_int_id, $owner_uid]);
1120
1121 if (!$tsth->fetch()) {
1122 $usth->execute([$owner_uid, $tag, $entry_int_id]);
1123 }
1124
1125 array_push($tags_to_cache, $tag);
1126 }
1127
1128 /* update the cache */
1129
1130 $tags_to_cache = array_unique($tags_to_cache);
1131
1132 $tags_str = join(",", $tags_to_cache);
1133
1134 $tsth = $pdo->prepare("UPDATE ttrss_user_entries
1135 SET tag_cache = ? WHERE ref_id = ?
1136 AND owner_uid = ?");
1137 $tsth->execute([$tags_str, $entry_ref_id, $owner_uid]);
1138 }
1139
1140 _debug("article processed", $debug_enabled);
1141 }
1142
1143 _debug("purging feed...", $debug_enabled);
1144
1145 purge_feed($feed, 0, $debug_enabled);
1146
1147 $sth = $pdo->prepare("UPDATE ttrss_feeds
1148 SET last_updated = NOW(), last_unconditional = NOW(), last_error = '' WHERE id = ?");
1149 $sth->execute([$feed]);
1150
1151 } else {
1152
1153 $error_msg = mb_substr($rss->error(), 0, 245);
1154
1155 _debug("fetch error: $error_msg", $debug_enabled);
1156
1157 if (count($rss->errors()) > 1) {
1158 foreach ($rss->errors() as $error) {
1159 _debug("+ $error");
1160 }
1161 }
1162
1163 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_error = ?,
1164 last_updated = NOW(), last_unconditional = NOW() WHERE id = ?");
1165 $sth->execute([$error_msg, $feed]);
1166
1167 unset($rss);
1168 return false;
1169 }
1170
1171 _debug("done", $debug_enabled);
1172
1173 return true;
1174 }
1175
1176 static function cache_enclosures($enclosures, $site_url, $debug) {
1177 foreach ($enclosures as $enc) {
1178
1179 if (preg_match("/(image|audio|video)/", $enc[1])) {
1180
1181 $src = rewrite_relative_url($site_url, $enc[0]);
1182
1183 $local_filename = CACHE_DIR . "/images/" . sha1($src);
1184
1185 if ($debug) _debug("cache_enclosures: downloading: $src to $local_filename");
1186
1187 if (!file_exists($local_filename)) {
1188 $file_content = fetch_file_contents($src);
1189
1190 if ($file_content && strlen($file_content) > MIN_CACHE_FILE_SIZE) {
1191 file_put_contents($local_filename, $file_content);
1192 }
1193 } else {
1194 touch($local_filename);
1195 }
1196 }
1197 }
1198 }
1199
1200 static function cache_media($html, $site_url, $debug) {
1201 libxml_use_internal_errors(true);
1202
1203 $charset_hack = '<head>
1204 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
1205 </head>';
1206
1207 $doc = new DOMDocument();
1208 $doc->loadHTML($charset_hack . $html);
1209 $xpath = new DOMXPath($doc);
1210
1211 $entries = $xpath->query('(//img[@src])|(//video/source[@src])|(//audio/source[@src])');
1212
1213 foreach ($entries as $entry) {
1214 if ($entry->hasAttribute('src') && strpos($entry->getAttribute('src'), "data:") !== 0) {
1215 $src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
1216
1217 $local_filename = CACHE_DIR . "/images/" . sha1($src);
1218
1219 if ($debug) _debug("cache_media: downloading: $src to $local_filename");
1220
1221 if (!file_exists($local_filename)) {
1222 $file_content = fetch_file_contents($src);
1223
1224 if ($file_content && strlen($file_content) > MIN_CACHE_FILE_SIZE) {
1225 file_put_contents($local_filename, $file_content);
1226 }
1227 } else {
1228 touch($local_filename);
1229 }
1230 }
1231 }
1232 }
1233
1234 static function expire_error_log($debug) {
1235 if ($debug) _debug("Removing old error log entries...");
1236
1237 $pdo = Db::pdo();
1238
1239 if (DB_TYPE == "pgsql") {
1240 $pdo->query("DELETE FROM ttrss_error_log
1241 WHERE created_at < NOW() - INTERVAL '7 days'");
1242 } else {
1243 $pdo->query("DELETE FROM ttrss_error_log
1244 WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
1245 }
1246 }
1247
1248 static function expire_lock_files($debug) {
1249 //if ($debug) _debug("Removing old lock files...");
1250
1251 $num_deleted = 0;
1252
1253 if (is_writable(LOCK_DIRECTORY)) {
1254 $files = glob(LOCK_DIRECTORY . "/*.lock");
1255
1256 if ($files) {
1257 foreach ($files as $file) {
1258 if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
1259 unlink($file);
1260 ++$num_deleted;
1261 }
1262 }
1263 }
1264 }
1265
1266 if ($debug) _debug("Removed $num_deleted old lock files.");
1267 }
1268
1269 static function expire_cached_files($debug) {
1270 foreach (array("simplepie", "images", "export", "upload") as $dir) {
1271 $cache_dir = CACHE_DIR . "/$dir";
1272
1273 // if ($debug) _debug("Expiring $cache_dir");
1274
1275 $num_deleted = 0;
1276
1277 if (is_writable($cache_dir)) {
1278 $files = glob("$cache_dir/*");
1279
1280 if ($files) {
1281 foreach ($files as $file) {
1282 if (time() - filemtime($file) > 86400*CACHE_MAX_DAYS) {
1283 unlink($file);
1284
1285 ++$num_deleted;
1286 }
1287 }
1288 }
1289 }
1290
1291 if ($debug) _debug("$cache_dir: removed $num_deleted files.");
1292 }
1293 }
1294
1295 /**
1296 * Source: http://www.php.net/manual/en/function.parse-url.php#104527
1297 * Returns the url query as associative array
1298 *
1299 * @param string query
1300 * @return array params
1301 */
1302 static function convertUrlQuery($query) {
1303 $queryParts = explode('&', $query);
1304
1305 $params = array();
1306
1307 foreach ($queryParts as $param) {
1308 $item = explode('=', $param);
1309 $params[$item[0]] = $item[1];
1310 }
1311
1312 return $params;
1313 }
1314
1315 static function get_article_filters($filters, $title, $content, $link, $author, $tags, &$matched_rules = false) {
1316 $matches = array();
1317
1318 foreach ($filters as $filter) {
1319 $match_any_rule = $filter["match_any_rule"];
1320 $inverse = $filter["inverse"];
1321 $filter_match = false;
1322
1323 foreach ($filter["rules"] as $rule) {
1324 $match = false;
1325 $reg_exp = str_replace('/', '\/', $rule["reg_exp"]);
1326 $rule_inverse = $rule["inverse"];
1327
1328 if (!$reg_exp)
1329 continue;
1330
1331 switch ($rule["type"]) {
1332 case "title":
1333 $match = @preg_match("/$reg_exp/iu", $title);
1334 break;
1335 case "content":
1336 // we don't need to deal with multiline regexps
1337 $content = preg_replace("/[\r\n\t]/", "", $content);
1338
1339 $match = @preg_match("/$reg_exp/iu", $content);
1340 break;
1341 case "both":
1342 // we don't need to deal with multiline regexps
1343 $content = preg_replace("/[\r\n\t]/", "", $content);
1344
1345 $match = (@preg_match("/$reg_exp/iu", $title) || @preg_match("/$reg_exp/iu", $content));
1346 break;
1347 case "link":
1348 $match = @preg_match("/$reg_exp/iu", $link);
1349 break;
1350 case "author":
1351 $match = @preg_match("/$reg_exp/iu", $author);
1352 break;
1353 case "tag":
1354 foreach ($tags as $tag) {
1355 if (@preg_match("/$reg_exp/iu", $tag)) {
1356 $match = true;
1357 break;
1358 }
1359 }
1360 break;
1361 }
1362
1363 if ($rule_inverse) $match = !$match;
1364
1365 if ($match_any_rule) {
1366 if ($match) {
1367 $filter_match = true;
1368 break;
1369 }
1370 } else {
1371 $filter_match = $match;
1372 if (!$match) {
1373 break;
1374 }
1375 }
1376 }
1377
1378 if ($inverse) $filter_match = !$filter_match;
1379
1380 if ($filter_match) {
1381 if (is_array($matched_rules)) array_push($matched_rules, $rule);
1382
1383 foreach ($filter["actions"] AS $action) {
1384 array_push($matches, $action);
1385
1386 // if Stop action encountered, perform no further processing
1387 if (isset($action["type"]) && $action["type"] == "stop") return $matches;
1388 }
1389 }
1390 }
1391
1392 return $matches;
1393 }
1394
1395 static function find_article_filter($filters, $filter_name) {
1396 foreach ($filters as $f) {
1397 if ($f["type"] == $filter_name) {
1398 return $f;
1399 };
1400 }
1401 return false;
1402 }
1403
1404 static function find_article_filters($filters, $filter_name) {
1405 $results = array();
1406
1407 foreach ($filters as $f) {
1408 if ($f["type"] == $filter_name) {
1409 array_push($results, $f);
1410 };
1411 }
1412 return $results;
1413 }
1414
1415 static function calculate_article_score($filters) {
1416 $score = 0;
1417
1418 foreach ($filters as $f) {
1419 if ($f["type"] == "score") {
1420 $score += $f["param"];
1421 };
1422 }
1423 return $score;
1424 }
1425
1426 static function labels_contains_caption($labels, $caption) {
1427 foreach ($labels as $label) {
1428 if ($label[1] == $caption) {
1429 return true;
1430 }
1431 }
1432
1433 return false;
1434 }
1435
1436 static function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
1437 foreach ($filters as $f) {
1438 if ($f["type"] == "label") {
1439 if (!RSSUtils::labels_contains_caption($article_labels, $f["param"])) {
1440 Labels::add_article($id, $f["param"], $owner_uid);
1441 }
1442 }
1443 }
1444 }
1445
1446 static function make_guid_from_title($title) {
1447 return preg_replace("/[ \"\',.:;]/", "-",
1448 mb_strtolower(strip_tags($title), 'utf-8'));
1449 }
1450
1451 static function cleanup_counters_cache($debug) {
1452 $pdo = Db::pdo();
1453
1454 $res = $pdo->query("DELETE FROM ttrss_counters_cache
1455 WHERE feed_id > 0 AND
1456 (SELECT COUNT(id) FROM ttrss_feeds WHERE
1457 id = feed_id AND
1458 ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid) = 0");
1459
1460 $frows = $res->rowCount();
1461
1462 $res = $pdo->query("DELETE FROM ttrss_cat_counters_cache
1463 WHERE feed_id > 0 AND
1464 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
1465 id = feed_id AND
1466 ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid) = 0");
1467
1468 $crows = $res->rowCount();
1469
1470 if ($debug) _debug("Removed $frows (feeds) $crows (cats) orphaned counter cache entries.");
1471 }
1472
1473 static function housekeeping_user($owner_uid) {
1474 $tmph = new PluginHost();
1475
1476 load_user_plugins($owner_uid, $tmph);
1477
1478 $tmph->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
1479 }
1480
1481 static function housekeeping_common($debug) {
1482 RSSUtils::expire_cached_files($debug);
1483 RSSUtils::expire_lock_files($debug);
1484 RSSUtils::expire_error_log($debug);
1485
1486 $count = RSSUtils::update_feedbrowser_cache();
1487 _debug("Feedbrowser updated, $count feeds processed.");
1488
1489 Article::purge_orphans( true);
1490 RSSUtils::cleanup_counters_cache($debug);
1491
1492 //$rc = cleanup_tags( 14, 50000);
1493 //_debug("Cleaned $rc cached tags.");
1494
1495 PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
1496 }
1497
1498 static function check_feed_favicon($site_url, $feed) {
1499 # print "FAVICON [$site_url]: $favicon_url\n";
1500
1501 $icon_file = ICONS_DIR . "/$feed.ico";
1502
1503 if (!file_exists($icon_file)) {
1504 $favicon_url = get_favicon_url($site_url);
1505
1506 if ($favicon_url) {
1507 // Limiting to "image" type misses those served with text/plain
1508 $contents = fetch_file_contents($favicon_url); // , "image");
1509
1510 if ($contents) {
1511 // Crude image type matching.
1512 // Patterns gleaned from the file(1) source code.
1513 if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
1514 // 0 string \000\000\001\000 MS Windows icon resource
1515 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
1516 }
1517 elseif (preg_match('/^GIF8/', $contents)) {
1518 // 0 string GIF8 GIF image data
1519 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
1520 }
1521 elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
1522 // 0 string \x89PNG\x0d\x0a\x1a\x0a PNG image data
1523 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
1524 }
1525 elseif (preg_match('/^\xff\xd8/', $contents)) {
1526 // 0 beshort 0xffd8 JPEG image data
1527 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
1528 }
1529 elseif (preg_match('/^BM/', $contents)) {
1530 // 0 string BM PC bitmap (OS2, Windows BMP files)
1531 //error_log("check_feed_favicon, favicon_url=$favicon_url isa BMP image");
1532 }
1533 else {
1534 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
1535 $contents = "";
1536 }
1537 }
1538
1539 if ($contents) {
1540 $fp = @fopen($icon_file, "w");
1541
1542 if ($fp) {
1543 fwrite($fp, $contents);
1544 fclose($fp);
1545 chmod($icon_file, 0644);
1546 }
1547 }
1548 }
1549 return $icon_file;
1550 }
1551 }
1552
1553
1554
1555 }
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/