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better handle PDOExceptions during open transaction in feed update
[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()) . $tmp);
17 }
18
19 // Strips utf8mb4 characters (i.e. emoji) for mysql
20 static function strip_utf8mb4($str) {
21 return preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $str);
22 }
23
24 static function update_feedbrowser_cache() {
25
26 $pdo = Db::pdo();
27
28 $sth = $pdo->query("SELECT feed_url, site_url, title, COUNT(id) AS subscribers
29 FROM ttrss_feeds WHERE feed_url NOT IN (SELECT feed_url FROM ttrss_feeds
30 WHERE private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%')
31 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
32
33 $pdo->beginTransaction();
34
35 $pdo->query("DELETE FROM ttrss_feedbrowser_cache");
36
37 $count = 0;
38
39 while ($line = $sth->fetch()) {
40
41 $subscribers = $line["subscribers"];
42 $feed_url = $line["feed_url"];
43 $title = $line["title"];
44 $site_url = $line["site_url"];
45
46 $tmph = $pdo->prepare("SELECT subscribers FROM
47 ttrss_feedbrowser_cache WHERE feed_url = ?");
48 $tmph->execute([$feed_url]);
49
50 if (!$tmph->fetch()) {
51
52 $tmph = $pdo->prepare("INSERT INTO ttrss_feedbrowser_cache
53 (feed_url, site_url, title, subscribers)
54 VALUES
55 (?, ?, ?, ?)");
56
57 $tmph->execute([$feed_url, $site_url, $title, $subscribers]);
58
59 ++$count;
60
61 }
62
63 }
64
65 $pdo->commit();
66
67 return $count;
68
69 }
70
71 static function update_daemon_common($limit = DAEMON_FEED_LIMIT, $debug = true) {
72 $schema_version = get_schema_version();
73
74 if ($schema_version != SCHEMA_VERSION) {
75 die("Schema version is wrong, please upgrade the database.\n");
76 }
77
78 $pdo = Db::pdo();
79
80 if (!SINGLE_USER_MODE && DAEMON_UPDATE_LOGIN_LIMIT > 0) {
81 if (DB_TYPE == "pgsql") {
82 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
83 } else {
84 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
85 }
86 } else {
87 $login_thresh_qpart = "";
88 }
89
90 if (DB_TYPE == "pgsql") {
91 $update_limit_qpart = "AND ((
92 ttrss_feeds.update_interval = 0
93 AND ttrss_user_prefs.value != '-1'
94 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
95 ) OR (
96 ttrss_feeds.update_interval > 0
97 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
98 ) OR (ttrss_feeds.last_updated IS NULL
99 AND ttrss_user_prefs.value != '-1')
100 OR (last_updated = '1970-01-01 00:00:00'
101 AND ttrss_user_prefs.value != '-1'))";
102 } else {
103 $update_limit_qpart = "AND ((
104 ttrss_feeds.update_interval = 0
105 AND ttrss_user_prefs.value != '-1'
106 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
107 ) OR (
108 ttrss_feeds.update_interval > 0
109 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
110 ) OR (ttrss_feeds.last_updated IS NULL
111 AND ttrss_user_prefs.value != '-1')
112 OR (last_updated = '1970-01-01 00:00:00'
113 AND ttrss_user_prefs.value != '-1'))";
114 }
115
116 // Test if feed is currently being updated by another process.
117 if (DB_TYPE == "pgsql") {
118 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '10 minutes')";
119 } else {
120 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 10 MINUTE))";
121 }
122
123 $query_limit = $limit ? sprintf("LIMIT %d", $limit) : "";
124
125 // Update the least recently updated feeds first
126 $query_order = "ORDER BY last_updated";
127 if (DB_TYPE == "pgsql") $query_order .= " NULLS FIRST";
128
129 $query = "SELECT DISTINCT ttrss_feeds.feed_url, ttrss_feeds.last_updated
130 FROM
131 ttrss_feeds, ttrss_users, ttrss_user_prefs
132 WHERE
133 ttrss_feeds.owner_uid = ttrss_users.id
134 AND ttrss_user_prefs.profile IS NULL
135 AND ttrss_users.id = ttrss_user_prefs.owner_uid
136 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
137 $login_thresh_qpart $update_limit_qpart
138 $updstart_thresh_qpart
139 $query_order $query_limit";
140
141 $res = $pdo->query($query);
142
143 $feeds_to_update = array();
144 while ($line = $res->fetch()) {
145 array_push($feeds_to_update, $line['feed_url']);
146 }
147
148 if ($debug) _debug(sprintf("Scheduled %d feeds to update...", count($feeds_to_update)));
149
150 // Update last_update_started before actually starting the batch
151 // in order to minimize collision risk for parallel daemon tasks
152 if (count($feeds_to_update) > 0) {
153 $feeds_qmarks = arr_qmarks($feeds_to_update);
154
155 $tmph = $pdo->prepare("UPDATE ttrss_feeds SET last_update_started = NOW()
156 WHERE feed_url IN ($feeds_qmarks)");
157 $tmph->execute($feeds_to_update);
158 }
159
160 $nf = 0;
161 $bstarted = microtime(true);
162
163 $batch_owners = array();
164
165 // since we have the data cached, we can deal with other feeds with the same url
166 $usth = $pdo->prepare("SELECT DISTINCT ttrss_feeds.id,last_updated,ttrss_feeds.owner_uid
167 FROM ttrss_feeds, ttrss_users, ttrss_user_prefs WHERE
168 ttrss_user_prefs.owner_uid = ttrss_feeds.owner_uid AND
169 ttrss_users.id = ttrss_user_prefs.owner_uid AND
170 ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL' AND
171 ttrss_user_prefs.profile IS NULL AND
172 feed_url = ?
173 $update_limit_qpart
174 $login_thresh_qpart
175 ORDER BY ttrss_feeds.id $query_limit");
176
177 foreach ($feeds_to_update as $feed) {
178 if($debug) _debug("Base feed: $feed");
179
180 $usth->execute([$feed]);
181 //update_rss_feed($line["id"], true);
182
183 if ($tline = $usth->fetch()) {
184 if ($debug) _debug(" => " . $tline["last_updated"] . ", " . $tline["id"] . " " . $tline["owner_uid"]);
185
186 if (array_search($tline["owner_uid"], $batch_owners) === FALSE)
187 array_push($batch_owners, $tline["owner_uid"]);
188
189 $fstarted = microtime(true);
190
191 try {
192 RSSUtils::update_rss_feed($tline["id"], true, false);
193 } catch (PDOException $e) {
194 Logger::get()->log_error(E_USER_NOTICE, $e->getMessage(), $e->getFile(), $e->getLine(), $e->getTraceAsString());
195
196 try {
197 $pdo->rollback();
198 } catch (PDOException $e) {
199 // it doesn't matter if there wasn't actually anything to rollback, PDO Exception can be
200 // thrown outside of an active transaction during feed update
201 }
202 }
203 _debug_suppress(false);
204
205 _debug(sprintf(" %.4f (sec)", microtime(true) - $fstarted));
206
207 ++$nf;
208 }
209 }
210
211 if ($nf > 0) {
212 _debug(sprintf("Processed %d feeds in %.4f (sec), %.4f (sec/feed avg)", $nf,
213 microtime(true) - $bstarted, (microtime(true) - $bstarted) / $nf));
214 }
215
216 foreach ($batch_owners as $owner_uid) {
217 _debug("Running housekeeping tasks for user $owner_uid...");
218
219 RSSUtils::housekeeping_user($owner_uid);
220 }
221
222 // Send feed digests by email if needed.
223 Digest::send_headlines_digests($debug);
224
225 return $nf;
226 }
227
228 // this is used when subscribing
229 static function set_basic_feed_info($feed) {
230
231 $pdo = Db::pdo();
232
233 $sth = $pdo->prepare("SELECT owner_uid,feed_url,auth_pass,auth_login
234 FROM ttrss_feeds WHERE id = ?");
235 $sth->execute([$feed]);
236
237 if ($row = $sth->fetch()) {
238
239 $owner_uid = $row["owner_uid"];
240 $auth_login = $row["auth_login"];
241 $auth_pass = $row["auth_pass"];
242 $fetch_url = $row["feed_url"];
243
244 $pluginhost = new PluginHost();
245 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
246
247 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
248 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
249 $pluginhost->load_data();
250
251 $basic_info = array();
252 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_BASIC_INFO) as $plugin) {
253 $basic_info = $plugin->hook_feed_basic_info($basic_info, $fetch_url, $owner_uid, $feed, $auth_login, $auth_pass);
254 }
255
256 if (!$basic_info) {
257 $feed_data = fetch_file_contents($fetch_url, false,
258 $auth_login, $auth_pass, false,
259 FEED_FETCH_TIMEOUT,
260 0);
261
262 global $fetch_curl_used;
263
264 if (!$fetch_curl_used) {
265 $tmp = @gzdecode($feed_data);
266
267 if ($tmp) $feed_data = $tmp;
268 }
269
270 $feed_data = trim($feed_data);
271
272 $rss = new FeedParser($feed_data);
273 $rss->init();
274
275 if (!$rss->error()) {
276 $basic_info = array(
277 'title' => mb_substr($rss->get_title(), 0, 199),
278 'site_url' => mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245)
279 );
280 }
281 }
282
283 if ($basic_info && is_array($basic_info)) {
284 $sth = $pdo->prepare("SELECT title, site_url FROM ttrss_feeds WHERE id = ?");
285 $sth->execute([$feed]);
286
287 if ($row = $sth->fetch()) {
288
289 $registered_title = $row["title"];
290 $orig_site_url = $row["site_url"];
291
292 if ($basic_info['title'] && (!$registered_title || $registered_title == "[Unknown]")) {
293
294 $sth = $pdo->prepare("UPDATE ttrss_feeds SET
295 title = ? WHERE id = ?");
296 $sth->execute([$basic_info['title'], $feed]);
297 }
298
299 if ($basic_info['site_url'] && $orig_site_url != $basic_info['site_url']) {
300 $sth = $pdo->prepare("UPDATE ttrss_feeds SET
301 site_url = ? WHERE id = ?");
302 $sth->execute([$basic_info['site_url'], $feed]);
303 }
304
305 }
306 }
307 }
308 }
309
310 /**
311 * @SuppressWarnings(PHPMD.UnusedFormalParameter)
312 */
313 static function update_rss_feed($feed, $no_cache = false) {
314
315 $debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || clean($_REQUEST['xdebug']);
316
317 _debug_suppress(!$debug_enabled);
318 _debug("start", $debug_enabled);
319
320 $pdo = Db::pdo();
321
322 $sth = $pdo->prepare("SELECT title FROM ttrss_feeds WHERE id = ?");
323 $sth->execute([$feed]);
324
325 if (!$row = $sth->fetch()) {
326 _debug("feed $feed NOT FOUND/SKIPPED", $debug_enabled);
327 user_error("Attempt to update unknown/invalid feed $feed", E_USER_WARNING);
328 return false;
329 }
330
331 $title = $row["title"];
332
333 // feed was batch-subscribed or something, we need to get basic info
334 // this is not optimal currently as it fetches stuff separately TODO: optimize
335 if ($title == "[Unknown]") {
336 _debug("setting basic feed info for $feed...");
337 RSSUtils::set_basic_feed_info($feed);
338 }
339
340 $sth = $pdo->prepare("SELECT id,update_interval,auth_login,
341 feed_url,auth_pass,cache_images,
342 mark_unread_on_update, owner_uid,
343 auth_pass_encrypted, feed_language,
344 last_modified,
345 ".SUBSTRING_FOR_DATE."(last_unconditional, 1, 19) AS last_unconditional
346 FROM ttrss_feeds WHERE id = ?");
347 $sth->execute([$feed]);
348
349 if ($row = $sth->fetch()) {
350
351 $owner_uid = $row["owner_uid"];
352 $mark_unread_on_update = $row["mark_unread_on_update"];
353
354 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_update_started = NOW()
355 WHERE id = ?");
356 $sth->execute([$feed]);
357
358 $auth_login = $row["auth_login"];
359 $auth_pass = $row["auth_pass"];
360 $stored_last_modified = $row["last_modified"];
361 $last_unconditional = $row["last_unconditional"];
362 $cache_images = $row["cache_images"];
363 $fetch_url = $row["feed_url"];
364
365 $feed_language = mb_strtolower($row["feed_language"]);
366 if (!$feed_language) $feed_language = 'english';
367
368 } else {
369 return false;
370 }
371
372 $date_feed_processed = date('Y-m-d H:i');
373
374 $cache_filename = CACHE_DIR . "/feeds/" . sha1($fetch_url) . ".xml";
375
376 $pluginhost = new PluginHost();
377 $pluginhost->set_debug($debug_enabled);
378 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
379
380 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
381 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
382 $pluginhost->load_data();
383
384 $rss_hash = false;
385
386 $force_refetch = isset($_REQUEST["force_refetch"]);
387 $feed_data = "";
388
389 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FETCH_FEED) as $plugin) {
390 $feed_data = $plugin->hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, 0, $auth_login, $auth_pass);
391 }
392
393 // try cache
394 if (!$feed_data &&
395 file_exists($cache_filename) &&
396 is_readable($cache_filename) &&
397 !$auth_login && !$auth_pass &&
398 filemtime($cache_filename) > time() - 30) {
399
400 _debug("using local cache [$cache_filename].", $debug_enabled);
401
402 @$feed_data = file_get_contents($cache_filename);
403
404 if ($feed_data) {
405 $rss_hash = sha1($feed_data);
406 }
407
408 } else {
409 _debug("local cache will not be used for this feed", $debug_enabled);
410 }
411
412 global $fetch_last_modified;
413
414 // fetch feed from source
415 if (!$feed_data) {
416 _debug("last unconditional update request: $last_unconditional");
417
418 if (ini_get("open_basedir") && function_exists("curl_init")) {
419 _debug("not using CURL due to open_basedir restrictions");
420 }
421
422 if (time() - strtotime($last_unconditional) > MAX_CONDITIONAL_INTERVAL) {
423 _debug("maximum allowed interval for conditional requests exceeded, forcing refetch");
424
425 $force_refetch = true;
426 } else {
427 _debug("stored last modified for conditional request: $stored_last_modified", $debug_enabled);
428 }
429
430 _debug("fetching [$fetch_url] (force_refetch: $force_refetch)...", $debug_enabled);
431
432 $feed_data = fetch_file_contents([
433 "url" => $fetch_url,
434 "login" => $auth_login,
435 "pass" => $auth_pass,
436 "timeout" => $no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
437 "last_modified" => $force_refetch ? "" : $stored_last_modified
438 ]);
439
440 global $fetch_curl_used;
441
442 if (!$fetch_curl_used) {
443 $tmp = @gzdecode($feed_data);
444
445 if ($tmp) $feed_data = $tmp;
446 }
447
448 $feed_data = trim($feed_data);
449
450 _debug("fetch done.", $debug_enabled);
451 _debug("source last modified: " . $fetch_last_modified, $debug_enabled);
452
453 if ($feed_data && $fetch_last_modified != $stored_last_modified) {
454 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_modified = ? WHERE id = ?");
455 $sth->execute([substr($fetch_last_modified, 0, 245), $feed]);
456 }
457
458 // cache vanilla feed data for re-use
459 if ($feed_data && !$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/feeds")) {
460 $new_rss_hash = sha1($feed_data);
461
462 if ($new_rss_hash != $rss_hash) {
463 _debug("saving $cache_filename", $debug_enabled);
464 @file_put_contents($cache_filename, $feed_data);
465 }
466 }
467 }
468
469 if (!$feed_data) {
470 global $fetch_last_error;
471 global $fetch_last_error_code;
472
473 _debug("unable to fetch: $fetch_last_error [$fetch_last_error_code]", $debug_enabled);
474
475 // If-Modified-Since
476 if ($fetch_last_error_code != 304) {
477 $error_message = $fetch_last_error;
478 } else {
479 _debug("source claims data not modified, nothing to do.", $debug_enabled);
480 $error_message = "";
481 }
482
483 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_error = ?,
484 last_updated = NOW() WHERE id = ?");
485 $sth->execute([$error_message, $feed]);
486
487 return;
488 }
489
490 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_FETCHED) as $plugin) {
491 $feed_data = $plugin->hook_feed_fetched($feed_data, $fetch_url, $owner_uid, $feed);
492 }
493
494 $rss = new FeedParser($feed_data);
495 $rss->init();
496
497 if (!$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 = $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 $pdo->beginTransaction();
595
596 if (clean($_REQUEST['xdebug']) == 3) {
597 print_r($item);
598 }
599
600 if (ini_get("max_execution_time") > 0 && time() - $tstart >= ini_get("max_execution_time") * 0.7) {
601 _debug("looks like there's too many articles to process at once, breaking out", $debug_enabled);
602 $pdo->commit();
603 break;
604 }
605
606 $entry_guid = strip_tags($item->get_id());
607 if (!$entry_guid) $entry_guid = strip_tags($item->get_link());
608 if (!$entry_guid) $entry_guid = RSSUtils::make_guid_from_title($item->get_title());
609
610 if (!$entry_guid) {
611 $pdo->commit();
612 continue;
613 }
614
615 $entry_guid = "$owner_uid,$entry_guid";
616
617 $entry_guid_hashed = 'SHA1:' . sha1($entry_guid);
618
619 _debug("guid $entry_guid / $entry_guid_hashed", $debug_enabled);
620
621 $entry_timestamp = strip_tags($item->get_date());
622
623 _debug("orig date: " . $item->get_date(), $debug_enabled);
624
625 if ($entry_timestamp == -1 || !$entry_timestamp || $entry_timestamp > time()) {
626 $entry_timestamp = time();
627 }
628
629 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
630
631 _debug("date $entry_timestamp [$entry_timestamp_fmt]", $debug_enabled);
632
633 $entry_title = strip_tags($item->get_title());
634
635 $entry_link = rewrite_relative_url($site_url, $item->get_link());
636
637 $entry_language = mb_substr(trim($item->get_language()), 0, 2);
638
639 _debug("title $entry_title", $debug_enabled);
640 _debug("link $entry_link", $debug_enabled);
641 _debug("language $entry_language", $debug_enabled);
642
643 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
644
645 $entry_content = $item->get_content();
646 if (!$entry_content) $entry_content = $item->get_description();
647
648 if (clean($_REQUEST["xdebug"]) == 2) {
649 print "content: ";
650 print htmlspecialchars($entry_content);
651 print "\n";
652 }
653
654 $entry_comments = mb_substr(strip_tags($item->get_comments_url()), 0, 245);
655 $num_comments = (int) $item->get_comments_count();
656
657 $entry_author = strip_tags($item->get_author());
658 $entry_guid = mb_substr($entry_guid, 0, 245);
659
660 _debug("author $entry_author", $debug_enabled);
661 _debug("num_comments: $num_comments", $debug_enabled);
662 _debug("looking for tags...", $debug_enabled);
663
664 // parse <category> entries into tags
665
666 $additional_tags = array();
667
668 $additional_tags_src = $item->get_categories();
669
670 if (is_array($additional_tags_src)) {
671 foreach ($additional_tags_src as $tobj) {
672 array_push($additional_tags, $tobj);
673 }
674 }
675
676 $entry_tags = array_unique($additional_tags);
677
678 for ($i = 0; $i < count($entry_tags); $i++) {
679 $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
680
681 // we don't support numeric tags, let's prefix them
682 if (is_numeric($entry_tags[$i])) $entry_tags[$i] = 't:' . $entry_tags[$i];
683 }
684
685 _debug("tags found: " . join(",", $entry_tags), $debug_enabled);
686
687 _debug("done collecting data.", $debug_enabled);
688
689 $sth = $pdo->prepare("SELECT id, content_hash, lang FROM ttrss_entries
690 WHERE guid = ? OR guid = ?");
691 $sth->execute([$entry_guid, $entry_guid_hashed]);
692
693 if ($row = $sth->fetch()) {
694 $base_entry_id = $row["id"];
695 $entry_stored_hash = $row["content_hash"];
696 $article_labels = Article::get_article_labels($base_entry_id, $owner_uid);
697
698 $existing_tags = Article::get_article_tags($base_entry_id, $owner_uid);
699 $entry_tags = array_unique(array_merge($entry_tags, $existing_tags));
700 } else {
701 $base_entry_id = false;
702 $entry_stored_hash = "";
703 $article_labels = array();
704 }
705
706 $article = array("owner_uid" => $owner_uid, // read only
707 "guid" => $entry_guid, // read only
708 "guid_hashed" => $entry_guid_hashed, // read only
709 "title" => $entry_title,
710 "content" => $entry_content,
711 "link" => $entry_link,
712 "labels" => $article_labels, // current limitation: can add labels to article, can't remove them
713 "tags" => $entry_tags,
714 "author" => $entry_author,
715 "force_catchup" => false, // ugly hack for the time being
716 "score_modifier" => 0, // no previous value, plugin should recalculate score modifier based on content if needed
717 "language" => $entry_language,
718 "num_comments" => $num_comments, // read only
719 "feed" => array("id" => $feed,
720 "fetch_url" => $fetch_url,
721 "site_url" => $site_url,
722 "cache_images" => $cache_images)
723 );
724
725 $entry_plugin_data = "";
726 $entry_current_hash = RSSUtils::calculate_article_hash($article, $pluginhost);
727
728 _debug("article hash: $entry_current_hash [stored=$entry_stored_hash]", $debug_enabled);
729
730 if ($entry_current_hash == $entry_stored_hash && !isset($_REQUEST["force_rehash"])) {
731 _debug("stored article seems up to date [IID: $base_entry_id], updating timestamp only", $debug_enabled);
732
733 // we keep encountering the entry in feeds, so we need to
734 // update date_updated column so that we don't get horrible
735 // dupes when the entry gets purged and reinserted again e.g.
736 // in the case of SLOW SLOW OMG SLOW updating feeds
737
738 $sth = $pdo->prepare("UPDATE ttrss_entries SET date_updated = NOW()
739 WHERE id = ?");
740 $sth->execute([$base_entry_id]);
741
742 $pdo->commit();
743 continue;
744 }
745
746 _debug("hash differs, applying plugin filters:", $debug_enabled);
747
748 foreach ($pluginhost->get_hooks(PluginHost::HOOK_ARTICLE_FILTER) as $plugin) {
749 _debug("... " . get_class($plugin), $debug_enabled);
750
751 $start = microtime(true);
752 $article = $plugin->hook_article_filter($article);
753
754 _debug("=== " . sprintf("%.4f (sec)", microtime(true) - $start), $debug_enabled);
755
756 $entry_plugin_data .= mb_strtolower(get_class($plugin)) . ",";
757 }
758
759 if (clean($_REQUEST["xdebug"]) == 2) {
760 print "processed content: ";
761 print htmlspecialchars($article["content"]);
762 print "\n";
763 }
764
765 _debug("plugin data: $entry_plugin_data", $debug_enabled);
766
767 // Workaround: 4-byte unicode requires utf8mb4 in MySQL. See https://tt-rss.org/forum/viewtopic.php?f=1&t=3377&p=20077#p20077
768 if (DB_TYPE == "mysql" && MYSQL_CHARSET != "UTF8MB4") {
769 foreach ($article as $k => $v) {
770 // i guess we'll have to take the risk of 4byte unicode labels & tags here
771 if (is_string($article[$k])) {
772 $article[$k] = RSSUtils::strip_utf8mb4($v);
773 }
774 }
775 }
776
777 /* Collect article tags here so we could filter by them: */
778
779 $matched_rules = array();
780
781 $article_filters = RSSUtils::get_article_filters($filters, $article["title"],
782 $article["content"], $article["link"], $article["author"],
783 $article["tags"], $matched_rules);
784
785 if ($debug_enabled) {
786 _debug("matched filter rules: ", $debug_enabled);
787
788 if (count($matched_rules) != 0) {
789 print_r($matched_rules);
790 }
791
792 _debug("filter actions: ", $debug_enabled);
793
794 if (count($article_filters) != 0) {
795 print_r($article_filters);
796 }
797 }
798
799 $plugin_filter_names = RSSUtils::find_article_filters($article_filters, "plugin");
800 $plugin_filter_actions = $pluginhost->get_filter_actions();
801
802 if (count($plugin_filter_names) > 0) {
803 _debug("applying plugin filter actions...", $debug_enabled);
804
805 foreach ($plugin_filter_names as $pfn) {
806 list($pfclass,$pfaction) = explode(":", $pfn["param"]);
807
808 if (isset($plugin_filter_actions[$pfclass])) {
809 $plugin = $pluginhost->get_plugin($pfclass);
810
811 _debug("... $pfclass: $pfaction", $debug_enabled);
812
813 if ($plugin) {
814 $start = microtime(true);
815 $article = $plugin->hook_article_filter_action($article, $pfaction);
816
817 _debug("=== " . sprintf("%.4f (sec)", microtime(true) - $start), $debug_enabled);
818 } else {
819 _debug("??? $pfclass: plugin object not found.");
820 }
821 } else {
822 _debug("??? $pfclass: filter plugin not registered.");
823 }
824 }
825 }
826
827 $entry_tags = $article["tags"];
828 $entry_title = strip_tags($article["title"]);
829 $entry_author = mb_substr(strip_tags($article["author"]), 0, 245);
830 $entry_link = strip_tags($article["link"]);
831 $entry_content = $article["content"]; // escaped below
832 $entry_force_catchup = $article["force_catchup"];
833 $article_labels = $article["labels"];
834 $entry_score_modifier = (int) $article["score_modifier"];
835 $entry_language = $article["language"];
836
837 if ($debug_enabled) {
838 _debug("article labels:", $debug_enabled);
839
840 if (count($article_labels) != 0) {
841 print_r($article_labels);
842 }
843 }
844
845 _debug("force catchup: $entry_force_catchup");
846
847 if ($cache_images && is_writable(CACHE_DIR . '/images'))
848 RSSUtils::cache_media($entry_content, $site_url, $debug_enabled);
849
850 $csth = $pdo->prepare("SELECT id FROM ttrss_entries
851 WHERE guid = ? OR guid = ?");
852 $csth->execute([$entry_guid, $entry_guid_hashed]);
853
854 if (!$row = $csth->fetch()) {
855
856 _debug("base guid [$entry_guid or $entry_guid_hashed] not found, creating...", $debug_enabled);
857
858 // base post entry does not exist, create it
859
860 $usth = $pdo->prepare(
861 "INSERT INTO ttrss_entries
862 (title,
863 guid,
864 link,
865 updated,
866 content,
867 content_hash,
868 no_orig_date,
869 date_updated,
870 date_entered,
871 comments,
872 num_comments,
873 plugin_data,
874 lang,
875 author)
876 VALUES
877 (?, ?, ?, ?, ?, ?,
878 false,
879 NOW(),
880 ?, ?, ?, ?, ?, ?)");
881
882 $usth->execute([$entry_title,
883 $entry_guid_hashed,
884 $entry_link,
885 $entry_timestamp_fmt,
886 "$entry_content",
887 $entry_current_hash,
888 $date_feed_processed,
889 $entry_comments,
890 (int)$num_comments,
891 $entry_plugin_data,
892 "$entry_language",
893 "$entry_author"]);
894
895 }
896
897 $csth->execute([$entry_guid, $entry_guid_hashed]);
898
899 $entry_ref_id = 0;
900 $entry_int_id = 0;
901
902 if ($row = $csth->fetch()) {
903
904 _debug("base guid found, checking for user record", $debug_enabled);
905
906 $ref_id = $row['id'];
907 $entry_ref_id = $ref_id;
908
909 if (RSSUtils::find_article_filter($article_filters, "filter")) {
910 $pdo->commit();
911 continue;
912 }
913
914 $score = RSSUtils::calculate_article_score($article_filters) + $entry_score_modifier;
915
916 _debug("initial score: $score [including plugin modifier: $entry_score_modifier]", $debug_enabled);
917
918 // check for user post link to main table
919
920 $sth = $pdo->prepare("SELECT ref_id, int_id FROM ttrss_user_entries WHERE
921 ref_id = ? AND owner_uid = ?");
922 $sth->execute([$ref_id, $owner_uid]);
923
924 // okay it doesn't exist - create user entry
925 if ($row = $sth->fetch()) {
926 $entry_ref_id = $row["ref_id"];
927 $entry_int_id = $row["int_id"];
928
929 _debug("user record FOUND: RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
930 } else {
931
932 _debug("user record not found, creating...", $debug_enabled);
933
934 if ($score >= -500 && !RSSUtils::find_article_filter($article_filters, 'catchup') && !$entry_force_catchup) {
935 $unread = 1;
936 $last_read_qpart = null;
937 } else {
938 $unread = 0;
939 $last_read_qpart = date("Y-m-d H:i"); // we can't use NOW() here because it gets quoted
940 }
941
942 if (RSSUtils::find_article_filter($article_filters, 'mark') || $score > 1000) {
943 $marked = 1;
944 } else {
945 $marked = 0;
946 }
947
948 if (RSSUtils::find_article_filter($article_filters, 'publish')) {
949 $published = 1;
950 } else {
951 $published = 0;
952 }
953
954 $last_marked = ($marked == 1) ? 'NOW()' : 'NULL';
955 $last_published = ($published == 1) ? 'NOW()' : 'NULL';
956
957 $sth = $pdo->prepare(
958 "INSERT INTO ttrss_user_entries
959 (ref_id, owner_uid, feed_id, unread, last_read, marked,
960 published, score, tag_cache, label_cache, uuid,
961 last_marked, last_published)
962 VALUES (?, ?, ?, ?, ?, ?, ?, ?, '', '', '', ".$last_marked.", ".$last_published.")");
963
964 $sth->execute([$ref_id, $owner_uid, $feed, $unread, $last_read_qpart, $marked,
965 $published, $score]);
966
967 $sth = $pdo->prepare("SELECT int_id FROM ttrss_user_entries WHERE
968 ref_id = ? AND owner_uid = ? AND
969 feed_id = ? LIMIT 1");
970
971 $sth->execute([$ref_id, $owner_uid, $feed]);
972
973 if ($row = $sth->fetch())
974 $entry_int_id = $row['int_id'];
975 }
976
977 _debug("resulting RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
978
979 if (DB_TYPE == "pgsql")
980 $tsvector_qpart = "tsvector_combined = to_tsvector(:ts_lang, :ts_content),";
981 else
982 $tsvector_qpart = "";
983
984 $sth = $pdo->prepare("UPDATE ttrss_entries
985 SET title = :title,
986 $tsvector_qpart
987 content = :content,
988 content_hash = :content_hash,
989 updated = :updated,
990 date_updated = NOW(),
991 num_comments = :num_comments,
992 plugin_data = :plugin_data,
993 author = :author,
994 lang = :lang
995 WHERE id = :id");
996
997 $params = [":title" => $entry_title,
998 ":content" => "$entry_content",
999 ":content_hash" => $entry_current_hash,
1000 ":updated" => $entry_timestamp_fmt,
1001 ":num_comments" => (int)$num_comments,
1002 ":plugin_data" => $entry_plugin_data,
1003 ":author" => "$entry_author",
1004 ":lang" => $entry_language,
1005 ":id" => $ref_id];
1006
1007 if (DB_TYPE == "pgsql") {
1008 $params[":ts_lang"] = $feed_language;
1009 $params[":ts_content"] = mb_substr(strip_tags($entry_title . " " . $entry_content), 0, 900000);
1010 }
1011
1012 $sth->execute($params);
1013
1014 // update aux data
1015 $sth = $pdo->prepare("UPDATE ttrss_user_entries
1016 SET score = ? WHERE ref_id = ?");
1017 $sth->execute([$score, $ref_id]);
1018
1019 if ($mark_unread_on_update) {
1020 _debug("article updated, marking unread as requested.", $debug_enabled);
1021
1022 $sth = $pdo->prepare("UPDATE ttrss_user_entries
1023 SET last_read = null, unread = true WHERE ref_id = ?");
1024 $sth->execute([$ref_id]);
1025 }
1026 }
1027
1028 _debug("assigning labels [other]...", $debug_enabled);
1029
1030 foreach ($article_labels as $label) {
1031 Labels::add_article($entry_ref_id, $label[1], $owner_uid);
1032 }
1033
1034 _debug("assigning labels [filters]...", $debug_enabled);
1035
1036 RSSUtils::assign_article_to_label_filters($entry_ref_id, $article_filters,
1037 $owner_uid, $article_labels);
1038
1039 _debug("looking for enclosures...", $debug_enabled);
1040
1041 // enclosures
1042
1043 $enclosures = array();
1044
1045 $encs = $item->get_enclosures();
1046
1047 if (is_array($encs)) {
1048 foreach ($encs as $e) {
1049 $e_item = array(
1050 rewrite_relative_url($site_url, $e->link),
1051 $e->type, $e->length, $e->title, $e->width, $e->height);
1052
1053 // Yet another episode of "mysql utf8_general_ci is gimped"
1054 if (DB_TYPE == "mysql" && MYSQL_CHARSET != "UTF8MB4") {
1055 for ($i = 0; $i < count($e_item); $i++) {
1056 if (is_string($e_item[$i])) {
1057 $e_item[$i] = RSSUtils::strip_utf8mb4($e_item[$i]);
1058 }
1059 }
1060 }
1061
1062 array_push($enclosures, $e_item);
1063 }
1064 }
1065
1066 if ($cache_images && is_writable(CACHE_DIR . '/images'))
1067 RSSUtils::cache_enclosures($enclosures, $site_url, $debug_enabled);
1068
1069 if ($debug_enabled) {
1070 _debug("article enclosures:", $debug_enabled);
1071 print_r($enclosures);
1072 }
1073
1074 $esth = $pdo->prepare("SELECT id FROM ttrss_enclosures
1075 WHERE content_url = ? AND content_type = ? AND post_id = ?");
1076
1077 $usth = $pdo->prepare("INSERT INTO ttrss_enclosures
1078 (content_url, content_type, title, duration, post_id, width, height) VALUES
1079 (?, ?, ?, ?, ?, ?, ?)");
1080
1081 foreach ($enclosures as $enc) {
1082 $enc_url = $enc[0];
1083 $enc_type = $enc[1];
1084 $enc_dur = (int)$enc[2];
1085 $enc_title = $enc[3];
1086 $enc_width = intval($enc[4]);
1087 $enc_height = intval($enc[5]);
1088
1089 $esth->execute([$enc_url, $enc_type, $entry_ref_id]);
1090
1091 if (!$esth->fetch()) {
1092 $usth->execute([$enc_url, $enc_type, (string)$enc_title, $enc_dur, $entry_ref_id, $enc_width, $enc_height]);
1093 }
1094 }
1095
1096 // check for manual tags (we have to do it here since they're loaded from filters)
1097
1098 foreach ($article_filters as $f) {
1099 if ($f["type"] == "tag") {
1100
1101 $manual_tags = trim_array(explode(",", $f["param"]));
1102
1103 foreach ($manual_tags as $tag) {
1104 if (tag_is_valid($tag)) {
1105 array_push($entry_tags, $tag);
1106 }
1107 }
1108 }
1109 }
1110
1111 // Skip boring tags
1112
1113 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref(
1114 'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1115
1116 $filtered_tags = array();
1117 $tags_to_cache = array();
1118
1119 if ($entry_tags && is_array($entry_tags)) {
1120 foreach ($entry_tags as $tag) {
1121 if (array_search($tag, $boring_tags) === false) {
1122 array_push($filtered_tags, $tag);
1123 }
1124 }
1125 }
1126
1127 $filtered_tags = array_unique($filtered_tags);
1128
1129 if ($debug_enabled) {
1130 _debug("filtered article tags:", $debug_enabled);
1131 print_r($filtered_tags);
1132 }
1133
1134 // Save article tags in the database
1135
1136 if (count($filtered_tags) > 0) {
1137
1138 $tsth = $pdo->prepare("SELECT id FROM ttrss_tags
1139 WHERE tag_name = ? AND post_int_id = ? AND
1140 owner_uid = ? LIMIT 1");
1141
1142 $usth = $pdo->prepare("INSERT INTO ttrss_tags
1143 (owner_uid,tag_name,post_int_id)
1144 VALUES (?, ?, ?)");
1145
1146 foreach ($filtered_tags as $tag) {
1147
1148 $tag = sanitize_tag($tag);
1149
1150 if (!tag_is_valid($tag)) continue;
1151
1152 $tsth->execute([$tag, $entry_int_id, $owner_uid]);
1153
1154 if (!$tsth->fetch()) {
1155 $usth->execute([$owner_uid, $tag, $entry_int_id]);
1156 }
1157
1158 array_push($tags_to_cache, $tag);
1159 }
1160
1161 /* update the cache */
1162
1163 $tags_to_cache = array_unique($tags_to_cache);
1164
1165 $tags_str = join(",", $tags_to_cache);
1166
1167 $tsth = $pdo->prepare("UPDATE ttrss_user_entries
1168 SET tag_cache = ? WHERE ref_id = ?
1169 AND owner_uid = ?");
1170 $tsth->execute([$tags_str, $entry_ref_id, $owner_uid]);
1171 }
1172
1173 _debug("article processed", $debug_enabled);
1174
1175 $pdo->commit();
1176 }
1177
1178 _debug("purging feed...", $debug_enabled);
1179
1180 purge_feed($feed, 0, $debug_enabled);
1181
1182 $sth = $pdo->prepare("UPDATE ttrss_feeds
1183 SET last_updated = NOW(), last_unconditional = NOW(), last_error = '' WHERE id = ?");
1184 $sth->execute([$feed]);
1185
1186 } else {
1187
1188 $error_msg = mb_substr($rss->error(), 0, 245);
1189
1190 _debug("fetch error: $error_msg", $debug_enabled);
1191
1192 if (count($rss->errors()) > 1) {
1193 foreach ($rss->errors() as $error) {
1194 _debug("+ $error");
1195 }
1196 }
1197
1198 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_error = ?,
1199 last_updated = NOW(), last_unconditional = NOW() WHERE id = ?");
1200 $sth->execute([$error_msg, $feed]);
1201
1202 unset($rss);
1203 return false;
1204 }
1205
1206 _debug("done", $debug_enabled);
1207
1208 return true;
1209 }
1210
1211 static function cache_enclosures($enclosures, $site_url, $debug) {
1212 foreach ($enclosures as $enc) {
1213
1214 if (preg_match("/(image|audio|video)/", $enc[1])) {
1215
1216 $src = rewrite_relative_url($site_url, $enc[0]);
1217
1218 $local_filename = CACHE_DIR . "/images/" . sha1($src);
1219
1220 if ($debug) _debug("cache_enclosures: downloading: $src to $local_filename");
1221
1222 if (!file_exists($local_filename)) {
1223 $file_content = fetch_file_contents($src);
1224
1225 if ($file_content && strlen($file_content) > MIN_CACHE_FILE_SIZE) {
1226 file_put_contents($local_filename, $file_content);
1227 }
1228 } else if (is_writable($local_filename)) {
1229 touch($local_filename);
1230 }
1231 }
1232 }
1233 }
1234
1235 static function cache_media($html, $site_url, $debug) {
1236 libxml_use_internal_errors(true);
1237
1238 $charset_hack = '<head>
1239 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
1240 </head>';
1241
1242 $doc = new DOMDocument();
1243 $doc->loadHTML($charset_hack . $html);
1244 $xpath = new DOMXPath($doc);
1245
1246 $entries = $xpath->query('(//img[@src])|(//video/source[@src])|(//audio/source[@src])');
1247
1248 foreach ($entries as $entry) {
1249 if ($entry->hasAttribute('src') && strpos($entry->getAttribute('src'), "data:") !== 0) {
1250 $src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
1251
1252 $local_filename = CACHE_DIR . "/images/" . sha1($src);
1253
1254 if ($debug) _debug("cache_media: checking $src");
1255
1256 if (!file_exists($local_filename)) {
1257 if ($debug) _debug("cache_media: downloading: $src to $local_filename");
1258
1259 $file_content = fetch_file_contents($src);
1260
1261 if ($file_content && strlen($file_content) > MIN_CACHE_FILE_SIZE) {
1262 file_put_contents($local_filename, $file_content);
1263 }
1264 } else if (is_writable($local_filename)) {
1265 touch($local_filename);
1266 }
1267 }
1268 }
1269 }
1270
1271 static function expire_error_log($debug) {
1272 if ($debug) _debug("Removing old error log entries...");
1273
1274 $pdo = Db::pdo();
1275
1276 if (DB_TYPE == "pgsql") {
1277 $pdo->query("DELETE FROM ttrss_error_log
1278 WHERE created_at < NOW() - INTERVAL '7 days'");
1279 } else {
1280 $pdo->query("DELETE FROM ttrss_error_log
1281 WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
1282 }
1283 }
1284
1285 static function expire_lock_files($debug) {
1286 //if ($debug) _debug("Removing old lock files...");
1287
1288 $num_deleted = 0;
1289
1290 if (is_writable(LOCK_DIRECTORY)) {
1291 $files = glob(LOCK_DIRECTORY . "/*.lock");
1292
1293 if ($files) {
1294 foreach ($files as $file) {
1295 if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
1296 unlink($file);
1297 ++$num_deleted;
1298 }
1299 }
1300 }
1301 }
1302
1303 if ($debug) _debug("Removed $num_deleted old lock files.");
1304 }
1305
1306 static function expire_cached_files($debug) {
1307 foreach (array("simplepie", "feeds", "images", "export", "upload") as $dir) {
1308 $cache_dir = CACHE_DIR . "/$dir";
1309
1310 // if ($debug) _debug("Expiring $cache_dir");
1311
1312 $num_deleted = 0;
1313
1314 if (is_writable($cache_dir)) {
1315 $files = glob("$cache_dir/*");
1316
1317 if ($files) {
1318 foreach ($files as $file) {
1319 if (time() - filemtime($file) > 86400*CACHE_MAX_DAYS) {
1320 unlink($file);
1321
1322 ++$num_deleted;
1323 }
1324 }
1325 }
1326 }
1327
1328 if ($debug) _debug("$cache_dir: removed $num_deleted files.");
1329 }
1330 }
1331
1332 /**
1333 * Source: http://www.php.net/manual/en/function.parse-url.php#104527
1334 * Returns the url query as associative array
1335 *
1336 * @param string query
1337 * @return array params
1338 */
1339 static function convertUrlQuery($query) {
1340 $queryParts = explode('&', $query);
1341
1342 $params = array();
1343
1344 foreach ($queryParts as $param) {
1345 $item = explode('=', $param);
1346 $params[$item[0]] = $item[1];
1347 }
1348
1349 return $params;
1350 }
1351
1352 static function get_article_filters($filters, $title, $content, $link, $author, $tags, &$matched_rules = false) {
1353 $matches = array();
1354
1355 foreach ($filters as $filter) {
1356 $match_any_rule = $filter["match_any_rule"];
1357 $inverse = $filter["inverse"];
1358 $filter_match = false;
1359
1360 foreach ($filter["rules"] as $rule) {
1361 $match = false;
1362 $reg_exp = str_replace('/', '\/', $rule["reg_exp"]);
1363 $rule_inverse = $rule["inverse"];
1364
1365 if (!$reg_exp)
1366 continue;
1367
1368 switch ($rule["type"]) {
1369 case "title":
1370 $match = @preg_match("/$reg_exp/iu", $title);
1371 break;
1372 case "content":
1373 // we don't need to deal with multiline regexps
1374 $content = preg_replace("/[\r\n\t]/", "", $content);
1375
1376 $match = @preg_match("/$reg_exp/iu", $content);
1377 break;
1378 case "both":
1379 // we don't need to deal with multiline regexps
1380 $content = preg_replace("/[\r\n\t]/", "", $content);
1381
1382 $match = (@preg_match("/$reg_exp/iu", $title) || @preg_match("/$reg_exp/iu", $content));
1383 break;
1384 case "link":
1385 $match = @preg_match("/$reg_exp/iu", $link);
1386 break;
1387 case "author":
1388 $match = @preg_match("/$reg_exp/iu", $author);
1389 break;
1390 case "tag":
1391 foreach ($tags as $tag) {
1392 if (@preg_match("/$reg_exp/iu", $tag)) {
1393 $match = true;
1394 break;
1395 }
1396 }
1397 break;
1398 }
1399
1400 if ($rule_inverse) $match = !$match;
1401
1402 if ($match_any_rule) {
1403 if ($match) {
1404 $filter_match = true;
1405 break;
1406 }
1407 } else {
1408 $filter_match = $match;
1409 if (!$match) {
1410 break;
1411 }
1412 }
1413 }
1414
1415 if ($inverse) $filter_match = !$filter_match;
1416
1417 if ($filter_match) {
1418 if (is_array($matched_rules)) array_push($matched_rules, $rule);
1419
1420 foreach ($filter["actions"] AS $action) {
1421 array_push($matches, $action);
1422
1423 // if Stop action encountered, perform no further processing
1424 if (isset($action["type"]) && $action["type"] == "stop") return $matches;
1425 }
1426 }
1427 }
1428
1429 return $matches;
1430 }
1431
1432 static function find_article_filter($filters, $filter_name) {
1433 foreach ($filters as $f) {
1434 if ($f["type"] == $filter_name) {
1435 return $f;
1436 };
1437 }
1438 return false;
1439 }
1440
1441 static function find_article_filters($filters, $filter_name) {
1442 $results = array();
1443
1444 foreach ($filters as $f) {
1445 if ($f["type"] == $filter_name) {
1446 array_push($results, $f);
1447 };
1448 }
1449 return $results;
1450 }
1451
1452 static function calculate_article_score($filters) {
1453 $score = 0;
1454
1455 foreach ($filters as $f) {
1456 if ($f["type"] == "score") {
1457 $score += $f["param"];
1458 };
1459 }
1460 return $score;
1461 }
1462
1463 static function labels_contains_caption($labels, $caption) {
1464 foreach ($labels as $label) {
1465 if ($label[1] == $caption) {
1466 return true;
1467 }
1468 }
1469
1470 return false;
1471 }
1472
1473 static function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
1474 foreach ($filters as $f) {
1475 if ($f["type"] == "label") {
1476 if (!RSSUtils::labels_contains_caption($article_labels, $f["param"])) {
1477 Labels::add_article($id, $f["param"], $owner_uid);
1478 }
1479 }
1480 }
1481 }
1482
1483 static function make_guid_from_title($title) {
1484 return preg_replace("/[ \"\',.:;]/", "-",
1485 mb_strtolower(strip_tags($title), 'utf-8'));
1486 }
1487
1488 static function cleanup_counters_cache($debug) {
1489 $pdo = Db::pdo();
1490
1491 $res = $pdo->query("DELETE FROM ttrss_counters_cache
1492 WHERE feed_id > 0 AND
1493 (SELECT COUNT(id) FROM ttrss_feeds WHERE
1494 id = feed_id AND
1495 ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid) = 0");
1496
1497 $frows = $res->rowCount();
1498
1499 $res = $pdo->query("DELETE FROM ttrss_cat_counters_cache
1500 WHERE feed_id > 0 AND
1501 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
1502 id = feed_id AND
1503 ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid) = 0");
1504
1505 $crows = $res->rowCount();
1506
1507 if ($debug) _debug("Removed $frows (feeds) $crows (cats) orphaned counter cache entries.");
1508 }
1509
1510 static function housekeeping_user($owner_uid) {
1511 $tmph = new PluginHost();
1512
1513 load_user_plugins($owner_uid, $tmph);
1514
1515 $tmph->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
1516 }
1517
1518 static function housekeeping_common($debug) {
1519 RSSUtils::expire_cached_files($debug);
1520 RSSUtils::expire_lock_files($debug);
1521 RSSUtils::expire_error_log($debug);
1522
1523 $count = RSSUtils::update_feedbrowser_cache();
1524 _debug("Feedbrowser updated, $count feeds processed.");
1525
1526 Article::purge_orphans( true);
1527 RSSUtils::cleanup_counters_cache($debug);
1528
1529 //$rc = cleanup_tags( 14, 50000);
1530 //_debug("Cleaned $rc cached tags.");
1531
1532 PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
1533 }
1534
1535 static function check_feed_favicon($site_url, $feed) {
1536 # print "FAVICON [$site_url]: $favicon_url\n";
1537
1538 $icon_file = ICONS_DIR . "/$feed.ico";
1539
1540 if (!file_exists($icon_file)) {
1541 $favicon_url = get_favicon_url($site_url);
1542
1543 if ($favicon_url) {
1544 // Limiting to "image" type misses those served with text/plain
1545 $contents = fetch_file_contents($favicon_url); // , "image");
1546
1547 if ($contents) {
1548 // Crude image type matching.
1549 // Patterns gleaned from the file(1) source code.
1550 if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
1551 // 0 string \000\000\001\000 MS Windows icon resource
1552 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
1553 }
1554 elseif (preg_match('/^GIF8/', $contents)) {
1555 // 0 string GIF8 GIF image data
1556 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
1557 }
1558 elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
1559 // 0 string \x89PNG\x0d\x0a\x1a\x0a PNG image data
1560 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
1561 }
1562 elseif (preg_match('/^\xff\xd8/', $contents)) {
1563 // 0 beshort 0xffd8 JPEG image data
1564 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
1565 }
1566 elseif (preg_match('/^BM/', $contents)) {
1567 // 0 string BM PC bitmap (OS2, Windows BMP files)
1568 //error_log("check_feed_favicon, favicon_url=$favicon_url isa BMP image");
1569 }
1570 else {
1571 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
1572 $contents = "";
1573 }
1574 }
1575
1576 if ($contents) {
1577 $fp = @fopen($icon_file, "w");
1578
1579 if ($fp) {
1580 fwrite($fp, $contents);
1581 fclose($fp);
1582 chmod($icon_file, 0644);
1583 }
1584 }
1585 }
1586 return $icon_file;
1587 }
1588 }
1589
1590
1591
1592 }
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/