]> git.wh0rd.org - tt-rss.git/blob - classes/rssutils.php
git.wh0rd.org / tt-rss.git / blob
? search:


56108bd1eefbbea82068c86c67025035f383a611
[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 $tmp .= sha1("$k:" . sha1($x));
11 }
12 }
13
14 return sha1(implode(",", $pluginhost->get_plugin_names()) . $tmp);
15 }
16
17 // Strips utf8mb4 characters (i.e. emoji) for mysql
18 static function strip_utf8mb4($str) {
19 return preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $str);
20 }
21
22 static function update_feedbrowser_cache() {
23
24 $pdo = Db::pdo();
25
26 $sth = $pdo->query("SELECT feed_url, site_url, title, COUNT(id) AS subscribers
27 FROM ttrss_feeds WHERE feed_url NOT IN (SELECT feed_url FROM ttrss_feeds
28 WHERE private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%')
29 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
30
31 $pdo->beginTransaction();
32
33 $pdo->query("DELETE FROM ttrss_feedbrowser_cache");
34
35 $count = 0;
36
37 while ($line = $sth->fetch()) {
38
39 $subscribers = $line["subscribers"];
40 $feed_url = $line["feed_url"];
41 $title = $line["title"];
42 $site_url = $line["site_url"];
43
44 $tmph = $pdo->prepare("SELECT subscribers FROM
45 ttrss_feedbrowser_cache WHERE feed_url = ?");
46 $tmph->execute([$feed_url]);
47
48 if (!$tmph->fetch()) {
49
50 $tmph = $pdo->prepare("INSERT INTO ttrss_feedbrowser_cache
51 (feed_url, site_url, title, subscribers)
52 VALUES
53 (?, ?, ?, ?)");
54
55 $tmph->execute([$feed_url, $site_url, $title, $subscribers]);
56
57 ++$count;
58
59 }
60
61 }
62
63 $pdo->commit();
64
65 return $count;
66
67 }
68
69 static function update_daemon_common($limit = DAEMON_FEED_LIMIT) {
70 $schema_version = get_schema_version();
71
72 if ($schema_version != SCHEMA_VERSION) {
73 die("Schema version is wrong, please upgrade the database.\n");
74 }
75
76 $pdo = Db::pdo();
77
78 if (!SINGLE_USER_MODE && DAEMON_UPDATE_LOGIN_LIMIT > 0) {
79 if (DB_TYPE == "pgsql") {
80 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
81 } else {
82 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
83 }
84 } else {
85 $login_thresh_qpart = "";
86 }
87
88 if (DB_TYPE == "pgsql") {
89 $update_limit_qpart = "AND ((
90 ttrss_feeds.update_interval = 0
91 AND ttrss_user_prefs.value != '-1'
92 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
93 ) OR (
94 ttrss_feeds.update_interval > 0
95 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
96 ) OR (ttrss_feeds.last_updated IS NULL
97 AND ttrss_user_prefs.value != '-1')
98 OR (last_updated = '1970-01-01 00:00:00'
99 AND ttrss_user_prefs.value != '-1'))";
100 } else {
101 $update_limit_qpart = "AND ((
102 ttrss_feeds.update_interval = 0
103 AND ttrss_user_prefs.value != '-1'
104 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
105 ) OR (
106 ttrss_feeds.update_interval > 0
107 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
108 ) OR (ttrss_feeds.last_updated IS NULL
109 AND ttrss_user_prefs.value != '-1')
110 OR (last_updated = '1970-01-01 00:00:00'
111 AND ttrss_user_prefs.value != '-1'))";
112 }
113
114 // Test if feed is currently being updated by another process.
115 if (DB_TYPE == "pgsql") {
116 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '10 minutes')";
117 } else {
118 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 10 MINUTE))";
119 }
120
121 $query_limit = $limit ? sprintf("LIMIT %d", $limit) : "";
122
123 // Update the least recently updated feeds first
124 $query_order = "ORDER BY last_updated";
125 if (DB_TYPE == "pgsql") $query_order .= " NULLS FIRST";
126
127 $query = "SELECT DISTINCT ttrss_feeds.feed_url, ttrss_feeds.last_updated
128 FROM
129 ttrss_feeds, ttrss_users, ttrss_user_prefs
130 WHERE
131 ttrss_feeds.owner_uid = ttrss_users.id
132 AND ttrss_user_prefs.profile IS NULL
133 AND ttrss_users.id = ttrss_user_prefs.owner_uid
134 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
135 $login_thresh_qpart $update_limit_qpart
136 $updstart_thresh_qpart
137 $query_order $query_limit";
138
139 $res = $pdo->query($query);
140
141 $feeds_to_update = array();
142 while ($line = $res->fetch()) {
143 array_push($feeds_to_update, $line['feed_url']);
144 }
145
146 Debug::log(sprintf("Scheduled %d feeds to update...", count($feeds_to_update)));
147
148 // Update last_update_started before actually starting the batch
149 // in order to minimize collision risk for parallel daemon tasks
150 if (count($feeds_to_update) > 0) {
151 $feeds_qmarks = arr_qmarks($feeds_to_update);
152
153 $tmph = $pdo->prepare("UPDATE ttrss_feeds SET last_update_started = NOW()
154 WHERE feed_url IN ($feeds_qmarks)");
155 $tmph->execute($feeds_to_update);
156 }
157
158 $nf = 0;
159 $bstarted = microtime(true);
160
161 $batch_owners = array();
162
163 // since we have the data cached, we can deal with other feeds with the same url
164 $usth = $pdo->prepare("SELECT DISTINCT ttrss_feeds.id,last_updated,ttrss_feeds.owner_uid
165 FROM ttrss_feeds, ttrss_users, ttrss_user_prefs WHERE
166 ttrss_user_prefs.owner_uid = ttrss_feeds.owner_uid AND
167 ttrss_users.id = ttrss_user_prefs.owner_uid AND
168 ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL' AND
169 ttrss_user_prefs.profile IS NULL AND
170 feed_url = ?
171 $update_limit_qpart
172 $login_thresh_qpart
173 ORDER BY ttrss_feeds.id $query_limit");
174
175 foreach ($feeds_to_update as $feed) {
176 Debug::log("Base feed: $feed");
177
178 $usth->execute([$feed]);
179 //update_rss_feed($line["id"], true);
180
181 if ($tline = $usth->fetch()) {
182 Debug::log(" => " . $tline["last_updated"] . ", " . $tline["id"] . " " . $tline["owner_uid"]);
183
184 if (array_search($tline["owner_uid"], $batch_owners) === FALSE)
185 array_push($batch_owners, $tline["owner_uid"]);
186
187 $fstarted = microtime(true);
188
189 try {
190 RSSUtils::update_rss_feed($tline["id"], true, false);
191 } catch (PDOException $e) {
192 Logger::get()->log_error(E_USER_NOTICE, $e->getMessage(), $e->getFile(), $e->getLine(), $e->getTraceAsString());
193
194 try {
195 $pdo->rollback();
196 } catch (PDOException $e) {
197 // it doesn't matter if there wasn't actually anything to rollback, PDO Exception can be
198 // thrown outside of an active transaction during feed update
199 }
200 }
201
202 Debug::log(sprintf(" %.4f (sec)", microtime(true) - $fstarted));
203
204 ++$nf;
205 }
206 }
207
208 if ($nf > 0) {
209 Debug::log(sprintf("Processed %d feeds in %.4f (sec), %.4f (sec/feed avg)", $nf,
210 microtime(true) - $bstarted, (microtime(true) - $bstarted) / $nf));
211 }
212
213 foreach ($batch_owners as $owner_uid) {
214 Debug::log("Running housekeeping tasks for user $owner_uid...");
215
216 RSSUtils::housekeeping_user($owner_uid);
217 }
218
219 // Send feed digests by email if needed.
220 Digest::send_headlines_digests();
221
222 return $nf;
223 }
224
225 // this is used when subscribing
226 static function set_basic_feed_info($feed) {
227
228 $pdo = Db::pdo();
229
230 $sth = $pdo->prepare("SELECT owner_uid,feed_url,auth_pass,auth_login
231 FROM ttrss_feeds WHERE id = ?");
232 $sth->execute([$feed]);
233
234 if ($row = $sth->fetch()) {
235
236 $owner_uid = $row["owner_uid"];
237 $auth_login = $row["auth_login"];
238 $auth_pass = $row["auth_pass"];
239 $fetch_url = $row["feed_url"];
240
241 $pluginhost = new PluginHost();
242 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
243
244 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
245 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
246 $pluginhost->load_data();
247
248 $basic_info = array();
249 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_BASIC_INFO) as $plugin) {
250 $basic_info = $plugin->hook_feed_basic_info($basic_info, $fetch_url, $owner_uid, $feed, $auth_login, $auth_pass);
251 }
252
253 if (!$basic_info) {
254 $feed_data = fetch_file_contents($fetch_url, false,
255 $auth_login, $auth_pass, false,
256 FEED_FETCH_TIMEOUT,
257 0);
258
259 global $fetch_curl_used;
260
261 if (!$fetch_curl_used) {
262 $tmp = @gzdecode($feed_data);
263
264 if ($tmp) $feed_data = $tmp;
265 }
266
267 $feed_data = trim($feed_data);
268
269 $rss = new FeedParser($feed_data);
270 $rss->init();
271
272 if (!$rss->error()) {
273 $basic_info = array(
274 'title' => mb_substr($rss->get_title(), 0, 199),
275 'site_url' => mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245)
276 );
277 }
278 }
279
280 if ($basic_info && is_array($basic_info)) {
281 $sth = $pdo->prepare("SELECT title, site_url FROM ttrss_feeds WHERE id = ?");
282 $sth->execute([$feed]);
283
284 if ($row = $sth->fetch()) {
285
286 $registered_title = $row["title"];
287 $orig_site_url = $row["site_url"];
288
289 if ($basic_info['title'] && (!$registered_title || $registered_title == "[Unknown]")) {
290
291 $sth = $pdo->prepare("UPDATE ttrss_feeds SET
292 title = ? WHERE id = ?");
293 $sth->execute([$basic_info['title'], $feed]);
294 }
295
296 if ($basic_info['site_url'] && $orig_site_url != $basic_info['site_url']) {
297 $sth = $pdo->prepare("UPDATE ttrss_feeds SET
298 site_url = ? WHERE id = ?");
299 $sth->execute([$basic_info['site_url'], $feed]);
300 }
301
302 }
303 }
304 }
305 }
306
307 /**
308 * @SuppressWarnings(PHPMD.UnusedFormalParameter)
309 */
310 static function update_rss_feed($feed, $no_cache = false) {
311
312 Debug::log("start", Debug::$LOG_VERBOSE);
313
314 $pdo = Db::pdo();
315
316 $sth = $pdo->prepare("SELECT title FROM ttrss_feeds WHERE id = ?");
317 $sth->execute([$feed]);
318
319 if (!$row = $sth->fetch()) {
320 Debug::log("feed $feed not found, skipping.");
321 user_error("Attempt to update unknown/invalid feed $feed", E_USER_WARNING);
322 return false;
323 }
324
325 $title = $row["title"];
326
327 // feed was batch-subscribed or something, we need to get basic info
328 // this is not optimal currently as it fetches stuff separately TODO: optimize
329 if ($title == "[Unknown]") {
330 Debug::log("setting basic feed info for $feed...");
331 RSSUtils::set_basic_feed_info($feed);
332 }
333
334 $sth = $pdo->prepare("SELECT id,update_interval,auth_login,
335 feed_url,auth_pass,cache_images,
336 mark_unread_on_update, owner_uid,
337 auth_pass_encrypted, feed_language,
338 last_modified,
339 ".SUBSTRING_FOR_DATE."(last_unconditional, 1, 19) AS last_unconditional
340 FROM ttrss_feeds WHERE id = ?");
341 $sth->execute([$feed]);
342
343 if ($row = $sth->fetch()) {
344
345 $owner_uid = $row["owner_uid"];
346 $mark_unread_on_update = $row["mark_unread_on_update"];
347
348 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_update_started = NOW()
349 WHERE id = ?");
350 $sth->execute([$feed]);
351
352 $auth_login = $row["auth_login"];
353 $auth_pass = $row["auth_pass"];
354 $stored_last_modified = $row["last_modified"];
355 $last_unconditional = $row["last_unconditional"];
356 $cache_images = $row["cache_images"];
357 $fetch_url = $row["feed_url"];
358
359 $feed_language = mb_strtolower($row["feed_language"]);
360 if (!$feed_language) $feed_language = 'english';
361
362 } else {
363 return false;
364 }
365
366 $date_feed_processed = date('Y-m-d H:i');
367
368 $cache_filename = CACHE_DIR . "/feeds/" . sha1($fetch_url) . ".xml";
369
370 $pluginhost = new PluginHost();
371 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
372
373 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
374 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
375 $pluginhost->load_data();
376
377 $rss_hash = false;
378
379 $force_refetch = isset($_REQUEST["force_refetch"]);
380 $feed_data = "";
381
382 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FETCH_FEED) as $plugin) {
383 $feed_data = $plugin->hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, 0, $auth_login, $auth_pass);
384 }
385
386 // try cache
387 if (!$feed_data &&
388 file_exists($cache_filename) &&
389 is_readable($cache_filename) &&
390 !$auth_login && !$auth_pass &&
391 filemtime($cache_filename) > time() - 30) {
392
393 Debug::log("using local cache [$cache_filename].", Debug::$LOG_VERBOSE);
394
395 @$feed_data = file_get_contents($cache_filename);
396
397 if ($feed_data) {
398 $rss_hash = sha1($feed_data);
399 }
400
401 } else {
402 Debug::log("local cache will not be used for this feed", Debug::$LOG_VERBOSE);
403 }
404
405 global $fetch_last_modified;
406
407 // fetch feed from source
408 if (!$feed_data) {
409 Debug::log("last unconditional update request: $last_unconditional", Debug::$LOG_VERBOSE);
410
411 if (ini_get("open_basedir") && function_exists("curl_init")) {
412 Debug::log("not using CURL due to open_basedir restrictions", Debug::$LOG_VERBOSE);
413 }
414
415 if (time() - strtotime($last_unconditional) > MAX_CONDITIONAL_INTERVAL) {
416 Debug::log("maximum allowed interval for conditional requests exceeded, forcing refetch", Debug::$LOG_VERBOSE);
417
418 $force_refetch = true;
419 } else {
420 Debug::log("stored last modified for conditional request: $stored_last_modified", Debug::$LOG_VERBOSE);
421 }
422
423 Debug::log("fetching [$fetch_url] (force_refetch: $force_refetch)...", Debug::$LOG_VERBOSE);
424
425 $feed_data = fetch_file_contents([
426 "url" => $fetch_url,
427 "login" => $auth_login,
428 "pass" => $auth_pass,
429 "timeout" => $no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
430 "last_modified" => $force_refetch ? "" : $stored_last_modified
431 ]);
432
433 global $fetch_curl_used;
434
435 if (!$fetch_curl_used) {
436 $tmp = @gzdecode($feed_data);
437
438 if ($tmp) $feed_data = $tmp;
439 }
440
441 $feed_data = trim($feed_data);
442
443 Debug::log("fetch done.", Debug::$LOG_VERBOSE);
444 Debug::log("source last modified: " . $fetch_last_modified, Debug::$LOG_VERBOSE);
445
446 if ($feed_data && $fetch_last_modified != $stored_last_modified) {
447 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_modified = ? WHERE id = ?");
448 $sth->execute([substr($fetch_last_modified, 0, 245), $feed]);
449 }
450
451 // cache vanilla feed data for re-use
452 if ($feed_data && !$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/feeds")) {
453 $new_rss_hash = sha1($feed_data);
454
455 if ($new_rss_hash != $rss_hash) {
456 Debug::log("saving $cache_filename", Debug::$LOG_VERBOSE);
457 @file_put_contents($cache_filename, $feed_data);
458 }
459 }
460 }
461
462 if (!$feed_data) {
463 global $fetch_last_error;
464 global $fetch_last_error_code;
465
466 Debug::log("unable to fetch: $fetch_last_error [$fetch_last_error_code]", Debug::$LOG_VERBOSE);
467
468 // If-Modified-Since
469 if ($fetch_last_error_code != 304) {
470 $error_message = $fetch_last_error;
471 } else {
472 Debug::log("source claims data not modified, nothing to do.", Debug::$LOG_VERBOSE);
473 $error_message = "";
474 }
475
476 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_error = ?,
477 last_updated = NOW() WHERE id = ?");
478 $sth->execute([$error_message, $feed]);
479
480 return;
481 }
482
483 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_FETCHED) as $plugin) {
484 $feed_data = $plugin->hook_feed_fetched($feed_data, $fetch_url, $owner_uid, $feed);
485 }
486
487 $rss = new FeedParser($feed_data);
488 $rss->init();
489
490 if (!$rss->error()) {
491
492 // We use local pluginhost here because we need to load different per-user feed plugins
493 $pluginhost->run_hooks(PluginHost::HOOK_FEED_PARSED, "hook_feed_parsed", $rss);
494
495 Debug::log("language: $feed_language", Debug::$LOG_VERBOSE);
496 Debug::log("processing feed data...", Debug::$LOG_VERBOSE);
497
498 if (DB_TYPE == "pgsql") {
499 $favicon_interval_qpart = "favicon_last_checked < NOW() - INTERVAL '12 hour'";
500 } else {
501 $favicon_interval_qpart = "favicon_last_checked < DATE_SUB(NOW(), INTERVAL 12 HOUR)";
502 }
503
504 $sth = $pdo->prepare("SELECT owner_uid,favicon_avg_color,
505 (favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
506 favicon_needs_check
507 FROM ttrss_feeds WHERE id = ?");
508 $sth->execute([$feed]);
509
510 if ($row = $sth->fetch()) {
511 $favicon_needs_check = $row["favicon_needs_check"];
512 $favicon_avg_color = $row["favicon_avg_color"];
513 $owner_uid = $row["owner_uid"];
514 } else {
515 return false;
516 }
517
518 $site_url = mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245);
519
520 Debug::log("site_url: $site_url", Debug::$LOG_VERBOSE);
521 Debug::log("feed_title: " . $rss->get_title(), Debug::$LOG_VERBOSE);
522
523 if ($favicon_needs_check || $force_refetch) {
524
525 /* terrible hack: if we crash on floicon shit here, we won't check
526 * the icon avgcolor again (unless the icon got updated) */
527
528 $favicon_file = ICONS_DIR . "/$feed.ico";
529 $favicon_modified = @filemtime($favicon_file);
530
531 Debug::log("checking favicon...", Debug::$LOG_VERBOSE);
532
533 RSSUtils::check_feed_favicon($site_url, $feed);
534 $favicon_modified_new = @filemtime($favicon_file);
535
536 if ($favicon_modified_new > $favicon_modified)
537 $favicon_avg_color = '';
538
539 $favicon_colorstring = "";
540 if (file_exists($favicon_file) && function_exists("imagecreatefromstring") && $favicon_avg_color == '') {
541 require_once "colors.php";
542
543 $sth = $pdo->prepare("UPDATE ttrss_feeds SET favicon_avg_color = 'fail' WHERE
544 id = ?");
545 $sth->execute([$feed]);
546
547 $favicon_color = calculate_avg_color($favicon_file);
548
549 $favicon_colorstring = ",favicon_avg_color = " . $pdo->quote($favicon_color);
550
551 } else if ($favicon_avg_color == 'fail') {
552 Debug::log("floicon failed on this file, not trying to recalculate avg color", Debug::$LOG_VERBOSE);
553 }
554
555 $sth = $pdo->prepare("UPDATE ttrss_feeds SET favicon_last_checked = NOW()
556 $favicon_colorstring WHERE id = ?");
557 $sth->execute([$feed]);
558 }
559
560 Debug::log("loading filters & labels...", Debug::$LOG_VERBOSE);
561
562 $filters = load_filters($feed, $owner_uid);
563
564 if (Debug::get_loglevel() >= Debug::$LOG_EXTENDED) {
565 print_r($filters);
566 }
567
568 Debug::log("" . count($filters) . " filters loaded.", Debug::$LOG_VERBOSE);
569
570 $items = $rss->get_items();
571
572 if (!is_array($items)) {
573 Debug::log("no articles found.", Debug::$LOG_VERBOSE);
574
575 $sth = $pdo->prepare("UPDATE ttrss_feeds
576 SET last_updated = NOW(), last_unconditional = NOW(), last_error = '' WHERE id = ?");
577 $sth->execute([$feed]);
578
579 return true; // no articles
580 }
581
582 Debug::log("processing articles...", Debug::$LOG_VERBOSE);
583
584 $tstart = time();
585
586 foreach ($items as $item) {
587 $pdo->beginTransaction();
588
589 if (Debug::get_loglevel() >= 3) {
590 print_r($item);
591 }
592
593 if (ini_get("max_execution_time") > 0 && time() - $tstart >= ini_get("max_execution_time") * 0.7) {
594 Debug::log("looks like there's too many articles to process at once, breaking out", Debug::$LOG_VERBOSE);
595 $pdo->commit();
596 break;
597 }
598
599 $entry_guid = strip_tags($item->get_id());
600 if (!$entry_guid) $entry_guid = strip_tags($item->get_link());
601 if (!$entry_guid) $entry_guid = RSSUtils::make_guid_from_title($item->get_title());
602
603 if (!$entry_guid) {
604 $pdo->commit();
605 continue;
606 }
607
608 $entry_guid = "$owner_uid,$entry_guid";
609
610 $entry_guid_hashed = 'SHA1:' . sha1($entry_guid);
611
612 Debug::log("guid $entry_guid / $entry_guid_hashed", Debug::$LOG_VERBOSE);
613
614 $entry_timestamp = strip_tags($item->get_date());
615
616 Debug::log("orig date: " . $item->get_date(), Debug::$LOG_VERBOSE);
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::log("date $entry_timestamp [$entry_timestamp_fmt]", Debug::$LOG_VERBOSE);
625
626 $entry_title = strip_tags($item->get_title());
627
628 $entry_link = rewrite_relative_url($site_url, $item->get_link());
629
630 $entry_language = mb_substr(trim($item->get_language()), 0, 2);
631
632 Debug::log("title $entry_title", Debug::$LOG_VERBOSE);
633 Debug::log("link $entry_link", Debug::$LOG_VERBOSE);
634 Debug::log("language $entry_language", Debug::$LOG_VERBOSE);
635
636 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
637
638 $entry_content = $item->get_content();
639 if (!$entry_content) $entry_content = $item->get_description();
640
641 if (Debug::get_loglevel() >= 3) {
642 print "content: ";
643 print htmlspecialchars($entry_content);
644 print "\n";
645 }
646
647 $entry_comments = mb_substr(strip_tags($item->get_comments_url()), 0, 245);
648 $num_comments = (int) $item->get_comments_count();
649
650 $entry_author = strip_tags($item->get_author());
651 $entry_guid = mb_substr($entry_guid, 0, 245);
652
653 Debug::log("author $entry_author", Debug::$LOG_VERBOSE);
654 Debug::log("num_comments: $num_comments", Debug::$LOG_VERBOSE);
655 Debug::log("looking for tags...", Debug::$LOG_VERBOSE);
656
657 // parse <category> entries into tags
658
659 $additional_tags = array();
660
661 $additional_tags_src = $item->get_categories();
662
663 if (is_array($additional_tags_src)) {
664 foreach ($additional_tags_src as $tobj) {
665 array_push($additional_tags, $tobj);
666 }
667 }
668
669 $entry_tags = array_unique($additional_tags);
670
671 for ($i = 0; $i < count($entry_tags); $i++) {
672 $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
673
674 // we don't support numeric tags, let's prefix them
675 if (is_numeric($entry_tags[$i])) $entry_tags[$i] = 't:' . $entry_tags[$i];
676 }
677
678 Debug::log("tags found: " . join(",", $entry_tags), Debug::$LOG_VERBOSE);
679
680 Debug::log("done collecting data.", Debug::$LOG_VERBOSE);
681
682 $sth = $pdo->prepare("SELECT id, content_hash, lang FROM ttrss_entries
683 WHERE guid = ? OR guid = ?");
684 $sth->execute([$entry_guid, $entry_guid_hashed]);
685
686 if ($row = $sth->fetch()) {
687 $base_entry_id = $row["id"];
688 $entry_stored_hash = $row["content_hash"];
689 $article_labels = Article::get_article_labels($base_entry_id, $owner_uid);
690
691 $existing_tags = Article::get_article_tags($base_entry_id, $owner_uid);
692 $entry_tags = array_unique(array_merge($entry_tags, $existing_tags));
693 } else {
694 $base_entry_id = false;
695 $entry_stored_hash = "";
696 $article_labels = array();
697 }
698
699 $article = array("owner_uid" => $owner_uid, // read only
700 "guid" => $entry_guid, // read only
701 "guid_hashed" => $entry_guid_hashed, // read only
702 "title" => $entry_title,
703 "content" => $entry_content,
704 "link" => $entry_link,
705 "labels" => $article_labels, // current limitation: can add labels to article, can't remove them
706 "tags" => $entry_tags,
707 "author" => $entry_author,
708 "force_catchup" => false, // ugly hack for the time being
709 "score_modifier" => 0, // no previous value, plugin should recalculate score modifier based on content if needed
710 "language" => $entry_language,
711 "num_comments" => $num_comments, // read only
712 "feed" => array("id" => $feed,
713 "fetch_url" => $fetch_url,
714 "site_url" => $site_url,
715 "cache_images" => $cache_images)
716 );
717
718 $entry_plugin_data = "";
719 $entry_current_hash = RSSUtils::calculate_article_hash($article, $pluginhost);
720
721 Debug::log("article hash: $entry_current_hash [stored=$entry_stored_hash]", Debug::$LOG_VERBOSE);
722
723 if ($entry_current_hash == $entry_stored_hash && !isset($_REQUEST["force_rehash"])) {
724 Debug::log("stored article seems up to date [IID: $base_entry_id], updating timestamp only", Debug::$LOG_VERBOSE);
725
726 // we keep encountering the entry in feeds, so we need to
727 // update date_updated column so that we don't get horrible
728 // dupes when the entry gets purged and reinserted again e.g.
729 // in the case of SLOW SLOW OMG SLOW updating feeds
730
731 $sth = $pdo->prepare("UPDATE ttrss_entries SET date_updated = NOW()
732 WHERE id = ?");
733 $sth->execute([$base_entry_id]);
734
735 $pdo->commit();
736 continue;
737 }
738
739 Debug::log("hash differs, applying plugin filters:", Debug::$LOG_VERBOSE);
740
741 foreach ($pluginhost->get_hooks(PluginHost::HOOK_ARTICLE_FILTER) as $plugin) {
742 Debug::log("... " . get_class($plugin), Debug::$LOG_VERBOSE);
743
744 $start = microtime(true);
745 $article = $plugin->hook_article_filter($article);
746
747 Debug::log(sprintf("=== %.4f (sec)", microtime(true) - $start), Debug::$LOG_VERBOSE);
748
749 $entry_plugin_data .= mb_strtolower(get_class($plugin)) . ",";
750 }
751
752 if (Debug::get_loglevel() >= 3) {
753 print "processed content: ";
754 print htmlspecialchars($article["content"]);
755 print "\n";
756 }
757
758 Debug::log("plugin data: $entry_plugin_data", Debug::$LOG_VERBOSE);
759
760 // Workaround: 4-byte unicode requires utf8mb4 in MySQL. See https://tt-rss.org/forum/viewtopic.php?f=1&t=3377&p=20077#p20077
761 if (DB_TYPE == "mysql" && MYSQL_CHARSET != "UTF8MB4") {
762 foreach ($article as $k => $v) {
763 // i guess we'll have to take the risk of 4byte unicode labels & tags here
764 if (is_string($article[$k])) {
765 $article[$k] = RSSUtils::strip_utf8mb4($v);
766 }
767 }
768 }
769
770 /* Collect article tags here so we could filter by them: */
771
772 $matched_rules = array();
773
774 $article_filters = RSSUtils::get_article_filters($filters, $article["title"],
775 $article["content"], $article["link"], $article["author"],
776 $article["tags"], $matched_rules);
777
778 if (Debug::get_loglevel() >= Debug::$LOG_EXTENDED) {
779 Debug::log("matched filter rules: ", Debug::$LOG_VERBOSE);
780
781 if (count($matched_rules) != 0) {
782 print_r($matched_rules);
783 }
784
785 Debug::log("filter actions: ", Debug::$LOG_VERBOSE);
786
787 if (count($article_filters) != 0) {
788 print_r($article_filters);
789 }
790 }
791
792 $plugin_filter_names = RSSUtils::find_article_filters($article_filters, "plugin");
793 $plugin_filter_actions = $pluginhost->get_filter_actions();
794
795 if (count($plugin_filter_names) > 0) {
796 Debug::log("applying plugin filter actions...", Debug::$LOG_VERBOSE);
797
798 foreach ($plugin_filter_names as $pfn) {
799 list($pfclass,$pfaction) = explode(":", $pfn["param"]);
800
801 if (isset($plugin_filter_actions[$pfclass])) {
802 $plugin = $pluginhost->get_plugin($pfclass);
803
804 Debug::log("... $pfclass: $pfaction", Debug::$LOG_VERBOSE);
805
806 if ($plugin) {
807 $start = microtime(true);
808 $article = $plugin->hook_article_filter_action($article, $pfaction);
809
810 Debug::log(sprintf("=== %.4f (sec)"), Debug::$LOG_VERBOSE);
811 } else {
812 Debug::log("??? $pfclass: plugin object not found.", Debug::$LOG_VERBOSE);
813 }
814 } else {
815 Debug::log("??? $pfclass: filter plugin not registered.", Debug::$LOG_VERBOSE);
816 }
817 }
818 }
819
820 $entry_tags = $article["tags"];
821 $entry_title = strip_tags($article["title"]);
822 $entry_author = mb_substr(strip_tags($article["author"]), 0, 245);
823 $entry_link = strip_tags($article["link"]);
824 $entry_content = $article["content"]; // escaped below
825 $entry_force_catchup = $article["force_catchup"];
826 $article_labels = $article["labels"];
827 $entry_score_modifier = (int) $article["score_modifier"];
828 $entry_language = $article["language"];
829
830 if (Debug::get_loglevel() >= Debug::$LOG_EXTENDED) {
831 Debug::log("article labels:", Debug::$LOG_VERBOSE);
832
833 if (count($article_labels) != 0) {
834 print_r($article_labels);
835 }
836 }
837
838 Debug::log("force catchup: $entry_force_catchup", Debug::$LOG_VERBOSE);
839
840 if ($cache_images && is_writable(CACHE_DIR . '/images'))
841 RSSUtils::cache_media($entry_content, $site_url);
842
843 $csth = $pdo->prepare("SELECT id FROM ttrss_entries
844 WHERE guid = ? OR guid = ?");
845 $csth->execute([$entry_guid, $entry_guid_hashed]);
846
847 if (!$row = $csth->fetch()) {
848
849 Debug::log("base guid [$entry_guid or $entry_guid_hashed] not found, creating...", Debug::$LOG_VERBOSE);
850
851 // base post entry does not exist, create it
852
853 $usth = $pdo->prepare(
854 "INSERT INTO ttrss_entries
855 (title,
856 guid,
857 link,
858 updated,
859 content,
860 content_hash,
861 no_orig_date,
862 date_updated,
863 date_entered,
864 comments,
865 num_comments,
866 plugin_data,
867 lang,
868 author)
869 VALUES
870 (?, ?, ?, ?, ?, ?,
871 false,
872 NOW(),
873 ?, ?, ?, ?, ?, ?)");
874
875 $usth->execute([$entry_title,
876 $entry_guid_hashed,
877 $entry_link,
878 $entry_timestamp_fmt,
879 "$entry_content",
880 $entry_current_hash,
881 $date_feed_processed,
882 $entry_comments,
883 (int)$num_comments,
884 $entry_plugin_data,
885 "$entry_language",
886 "$entry_author"]);
887
888 }
889
890 $csth->execute([$entry_guid, $entry_guid_hashed]);
891
892 $entry_ref_id = 0;
893 $entry_int_id = 0;
894
895 if ($row = $csth->fetch()) {
896
897 Debug::log("base guid found, checking for user record", Debug::$LOG_VERBOSE);
898
899 $ref_id = $row['id'];
900 $entry_ref_id = $ref_id;
901
902 if (RSSUtils::find_article_filter($article_filters, "filter")) {
903 $pdo->commit();
904 continue;
905 }
906
907 $score = RSSUtils::calculate_article_score($article_filters) + $entry_score_modifier;
908
909 Debug::log("initial score: $score [including plugin modifier: $entry_score_modifier]", Debug::$LOG_VERBOSE);
910
911 // check for user post link to main table
912
913 $sth = $pdo->prepare("SELECT ref_id, int_id FROM ttrss_user_entries WHERE
914 ref_id = ? AND owner_uid = ?");
915 $sth->execute([$ref_id, $owner_uid]);
916
917 // okay it doesn't exist - create user entry
918 if ($row = $sth->fetch()) {
919 $entry_ref_id = $row["ref_id"];
920 $entry_int_id = $row["int_id"];
921
922 Debug::log("user record FOUND: RID: $entry_ref_id, IID: $entry_int_id", Debug::$LOG_VERBOSE);
923 } else {
924
925 Debug::log("user record not found, creating...", Debug::$LOG_VERBOSE);
926
927 if ($score >= -500 && !RSSUtils::find_article_filter($article_filters, 'catchup') && !$entry_force_catchup) {
928 $unread = 1;
929 $last_read_qpart = null;
930 } else {
931 $unread = 0;
932 $last_read_qpart = date("Y-m-d H:i"); // we can't use NOW() here because it gets quoted
933 }
934
935 if (RSSUtils::find_article_filter($article_filters, 'mark') || $score > 1000) {
936 $marked = 1;
937 } else {
938 $marked = 0;
939 }
940
941 if (RSSUtils::find_article_filter($article_filters, 'publish')) {
942 $published = 1;
943 } else {
944 $published = 0;
945 }
946
947 $last_marked = ($marked == 1) ? 'NOW()' : 'NULL';
948 $last_published = ($published == 1) ? 'NOW()' : 'NULL';
949
950 $sth = $pdo->prepare(
951 "INSERT INTO ttrss_user_entries
952 (ref_id, owner_uid, feed_id, unread, last_read, marked,
953 published, score, tag_cache, label_cache, uuid,
954 last_marked, last_published)
955 VALUES (?, ?, ?, ?, ?, ?, ?, ?, '', '', '', ".$last_marked.", ".$last_published.")");
956
957 $sth->execute([$ref_id, $owner_uid, $feed, $unread, $last_read_qpart, $marked,
958 $published, $score]);
959
960 $sth = $pdo->prepare("SELECT int_id FROM ttrss_user_entries WHERE
961 ref_id = ? AND owner_uid = ? AND
962 feed_id = ? LIMIT 1");
963
964 $sth->execute([$ref_id, $owner_uid, $feed]);
965
966 if ($row = $sth->fetch())
967 $entry_int_id = $row['int_id'];
968 }
969
970 Debug::log("resulting RID: $entry_ref_id, IID: $entry_int_id", Debug::$LOG_VERBOSE);
971
972 if (DB_TYPE == "pgsql")
973 $tsvector_qpart = "tsvector_combined = to_tsvector(:ts_lang, :ts_content),";
974 else
975 $tsvector_qpart = "";
976
977 $sth = $pdo->prepare("UPDATE ttrss_entries
978 SET title = :title,
979 $tsvector_qpart
980 content = :content,
981 content_hash = :content_hash,
982 updated = :updated,
983 date_updated = NOW(),
984 num_comments = :num_comments,
985 plugin_data = :plugin_data,
986 author = :author,
987 lang = :lang
988 WHERE id = :id");
989
990 $params = [":title" => $entry_title,
991 ":content" => "$entry_content",
992 ":content_hash" => $entry_current_hash,
993 ":updated" => $entry_timestamp_fmt,
994 ":num_comments" => (int)$num_comments,
995 ":plugin_data" => $entry_plugin_data,
996 ":author" => "$entry_author",
997 ":lang" => $entry_language,
998 ":id" => $ref_id];
999
1000 if (DB_TYPE == "pgsql") {
1001 $params[":ts_lang"] = $feed_language;
1002 $params[":ts_content"] = mb_substr(strip_tags($entry_title . " " . $entry_content), 0, 900000);
1003 }
1004
1005 $sth->execute($params);
1006
1007 // update aux data
1008 $sth = $pdo->prepare("UPDATE ttrss_user_entries
1009 SET score = ? WHERE ref_id = ?");
1010 $sth->execute([$score, $ref_id]);
1011
1012 if ($mark_unread_on_update) {
1013 Debug::log("article updated, marking unread as requested.", Debug::$LOG_VERBOSE);
1014
1015 $sth = $pdo->prepare("UPDATE ttrss_user_entries
1016 SET last_read = null, unread = true WHERE ref_id = ?");
1017 $sth->execute([$ref_id]);
1018 }
1019 }
1020
1021 Debug::log("assigning labels [other]...", Debug::$LOG_VERBOSE);
1022
1023 foreach ($article_labels as $label) {
1024 Labels::add_article($entry_ref_id, $label[1], $owner_uid);
1025 }
1026
1027 Debug::log("assigning labels [filters]...", Debug::$LOG_VERBOSE);
1028
1029 RSSUtils::assign_article_to_label_filters($entry_ref_id, $article_filters,
1030 $owner_uid, $article_labels);
1031
1032 Debug::log("looking for enclosures...", Debug::$LOG_VERBOSE);
1033
1034 // enclosures
1035
1036 $enclosures = array();
1037
1038 $encs = $item->get_enclosures();
1039
1040 if (is_array($encs)) {
1041 foreach ($encs as $e) {
1042 $e_item = array(
1043 rewrite_relative_url($site_url, $e->link),
1044 $e->type, $e->length, $e->title, $e->width, $e->height);
1045
1046 // Yet another episode of "mysql utf8_general_ci is gimped"
1047 if (DB_TYPE == "mysql" && MYSQL_CHARSET != "UTF8MB4") {
1048 for ($i = 0; $i < count($e_item); $i++) {
1049 if (is_string($e_item[$i])) {
1050 $e_item[$i] = RSSUtils::strip_utf8mb4($e_item[$i]);
1051 }
1052 }
1053 }
1054
1055 array_push($enclosures, $e_item);
1056 }
1057 }
1058
1059 if ($cache_images && is_writable(CACHE_DIR . '/images'))
1060 RSSUtils::cache_enclosures($enclosures, $site_url);
1061
1062 if (Debug::get_loglevel() >= Debug::$LOG_EXTENDED) {
1063 Debug::log("article enclosures:", Debug::$LOG_VERBOSE);
1064 print_r($enclosures);
1065 }
1066
1067 $esth = $pdo->prepare("SELECT id FROM ttrss_enclosures
1068 WHERE content_url = ? AND content_type = ? AND post_id = ?");
1069
1070 $usth = $pdo->prepare("INSERT INTO ttrss_enclosures
1071 (content_url, content_type, title, duration, post_id, width, height) VALUES
1072 (?, ?, ?, ?, ?, ?, ?)");
1073
1074 foreach ($enclosures as $enc) {
1075 $enc_url = $enc[0];
1076 $enc_type = $enc[1];
1077 $enc_dur = (int)$enc[2];
1078 $enc_title = $enc[3];
1079 $enc_width = intval($enc[4]);
1080 $enc_height = intval($enc[5]);
1081
1082 $esth->execute([$enc_url, $enc_type, $entry_ref_id]);
1083
1084 if (!$esth->fetch()) {
1085 $usth->execute([$enc_url, $enc_type, (string)$enc_title, $enc_dur, $entry_ref_id, $enc_width, $enc_height]);
1086 }
1087 }
1088
1089 // check for manual tags (we have to do it here since they're loaded from filters)
1090
1091 foreach ($article_filters as $f) {
1092 if ($f["type"] == "tag") {
1093
1094 $manual_tags = trim_array(explode(",", $f["param"]));
1095
1096 foreach ($manual_tags as $tag) {
1097 if (tag_is_valid($tag)) {
1098 array_push($entry_tags, $tag);
1099 }
1100 }
1101 }
1102 }
1103
1104 // Skip boring tags
1105
1106 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref(
1107 'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1108
1109 $filtered_tags = array();
1110 $tags_to_cache = array();
1111
1112 if ($entry_tags && is_array($entry_tags)) {
1113 foreach ($entry_tags as $tag) {
1114 if (array_search($tag, $boring_tags) === false) {
1115 array_push($filtered_tags, $tag);
1116 }
1117 }
1118 }
1119
1120 $filtered_tags = array_unique($filtered_tags);
1121
1122 if (Debug::get_loglevel() >= Debug::$LOG_EXTENDED) {
1123 Debug::log("filtered article tags:", Debug::$LOG_VERBOSE);
1124 print_r($filtered_tags);
1125 }
1126
1127 // Save article tags in the database
1128
1129 if (count($filtered_tags) > 0) {
1130
1131 $tsth = $pdo->prepare("SELECT id FROM ttrss_tags
1132 WHERE tag_name = ? AND post_int_id = ? AND
1133 owner_uid = ? LIMIT 1");
1134
1135 $usth = $pdo->prepare("INSERT INTO ttrss_tags
1136 (owner_uid,tag_name,post_int_id)
1137 VALUES (?, ?, ?)");
1138
1139 foreach ($filtered_tags as $tag) {
1140
1141 $tag = sanitize_tag($tag);
1142
1143 if (!tag_is_valid($tag)) continue;
1144
1145 $tsth->execute([$tag, $entry_int_id, $owner_uid]);
1146
1147 if (!$tsth->fetch()) {
1148 $usth->execute([$owner_uid, $tag, $entry_int_id]);
1149 }
1150
1151 array_push($tags_to_cache, $tag);
1152 }
1153
1154 /* update the cache */
1155
1156 $tags_to_cache = array_unique($tags_to_cache);
1157
1158 $tags_str = join(",", $tags_to_cache);
1159
1160 $tsth = $pdo->prepare("UPDATE ttrss_user_entries
1161 SET tag_cache = ? WHERE ref_id = ?
1162 AND owner_uid = ?");
1163 $tsth->execute([$tags_str, $entry_ref_id, $owner_uid]);
1164 }
1165
1166 Debug::log("article processed", Debug::$LOG_VERBOSE);
1167
1168 $pdo->commit();
1169 }
1170
1171 Debug::log("purging feed...", Debug::$LOG_VERBOSE);
1172
1173 purge_feed($feed, 0);
1174
1175 $sth = $pdo->prepare("UPDATE ttrss_feeds
1176 SET last_updated = NOW(), last_unconditional = NOW(), last_error = '' WHERE id = ?");
1177 $sth->execute([$feed]);
1178
1179 } else {
1180
1181 $error_msg = mb_substr($rss->error(), 0, 245);
1182
1183 Debug::log("fetch error: $error_msg", Debug::$LOG_VERBOSE);
1184
1185 if (count($rss->errors()) > 1) {
1186 foreach ($rss->errors() as $error) {
1187 Debug::log("+ $error", Debug::$LOG_VERBOSE);
1188 }
1189 }
1190
1191 $sth = $pdo->prepare("UPDATE ttrss_feeds SET last_error = ?,
1192 last_updated = NOW(), last_unconditional = NOW() WHERE id = ?");
1193 $sth->execute([$error_msg, $feed]);
1194
1195 unset($rss);
1196 return false;
1197 }
1198
1199 Debug::log("done", Debug::$LOG_VERBOSE);
1200
1201 return true;
1202 }
1203
1204 static function cache_enclosures($enclosures, $site_url) {
1205 foreach ($enclosures as $enc) {
1206
1207 if (preg_match("/(image|audio|video)/", $enc[1])) {
1208
1209 $src = rewrite_relative_url($site_url, $enc[0]);
1210
1211 $local_filename = CACHE_DIR . "/images/" . sha1($src);
1212
1213 Debug::log("cache_enclosures: downloading: $src to $local_filename", Debug::$LOG_VERBOSE);
1214
1215 if (!file_exists($local_filename)) {
1216 $file_content = fetch_file_contents($src);
1217
1218 if ($file_content && strlen($file_content) > MIN_CACHE_FILE_SIZE) {
1219 file_put_contents($local_filename, $file_content);
1220 }
1221 } else if (is_writable($local_filename)) {
1222 touch($local_filename);
1223 }
1224 }
1225 }
1226 }
1227
1228 static function cache_media($html, $site_url) {
1229 libxml_use_internal_errors(true);
1230
1231 $charset_hack = '<head>
1232 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
1233 </head>';
1234
1235 $doc = new DOMDocument();
1236 $doc->loadHTML($charset_hack . $html);
1237 $xpath = new DOMXPath($doc);
1238
1239 $entries = $xpath->query('(//img[@src])|(//video/source[@src])|(//audio/source[@src])');
1240
1241 foreach ($entries as $entry) {
1242 if ($entry->hasAttribute('src') && strpos($entry->getAttribute('src'), "data:") !== 0) {
1243 $src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
1244
1245 $local_filename = CACHE_DIR . "/images/" . sha1($src);
1246
1247 Debug::log("cache_media: checking $src", Debug::$LOG_VERBOSE);
1248
1249 if (!file_exists($local_filename)) {
1250 Debug::log("cache_media: downloading: $src to $local_filename", Debug::$LOG_VERBOSE);
1251
1252 $file_content = fetch_file_contents($src);
1253
1254 if ($file_content && strlen($file_content) > MIN_CACHE_FILE_SIZE) {
1255 file_put_contents($local_filename, $file_content);
1256 }
1257 } else if (is_writable($local_filename)) {
1258 touch($local_filename);
1259 }
1260 }
1261 }
1262 }
1263
1264 static function expire_error_log() {
1265 Debug::log("Removing old error log entries...");
1266
1267 $pdo = Db::pdo();
1268
1269 if (DB_TYPE == "pgsql") {
1270 $pdo->query("DELETE FROM ttrss_error_log
1271 WHERE created_at < NOW() - INTERVAL '7 days'");
1272 } else {
1273 $pdo->query("DELETE FROM ttrss_error_log
1274 WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
1275 }
1276 }
1277
1278 static function expire_lock_files() {
1279 Debug::log("Removing old lock files...", Debug::$LOG_VERBOSE);
1280
1281 $num_deleted = 0;
1282
1283 if (is_writable(LOCK_DIRECTORY)) {
1284 $files = glob(LOCK_DIRECTORY . "/*.lock");
1285
1286 if ($files) {
1287 foreach ($files as $file) {
1288 if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
1289 unlink($file);
1290 ++$num_deleted;
1291 }
1292 }
1293 }
1294 }
1295
1296 Debug::log("Removed $num_deleted old lock files.");
1297 }
1298
1299 static function expire_cached_files() {
1300 foreach (array("feeds", "images", "export", "upload") as $dir) {
1301 $cache_dir = CACHE_DIR . "/$dir";
1302
1303 Debug::log("Expiring $cache_dir", Debug::$LOG_VERBOSE);
1304
1305 $num_deleted = 0;
1306
1307 if (is_writable($cache_dir)) {
1308 $files = glob("$cache_dir/*");
1309
1310 if ($files) {
1311 foreach ($files as $file) {
1312 if (time() - filemtime($file) > 86400*CACHE_MAX_DAYS) {
1313 unlink($file);
1314
1315 ++$num_deleted;
1316 }
1317 }
1318 }
1319 }
1320
1321 Debug::log("$cache_dir: removed $num_deleted files.");
1322 }
1323 }
1324
1325 /**
1326 * Source: http://www.php.net/manual/en/function.parse-url.php#104527
1327 * Returns the url query as associative array
1328 *
1329 * @param string query
1330 * @return array params
1331 */
1332 static function convertUrlQuery($query) {
1333 $queryParts = explode('&', $query);
1334
1335 $params = array();
1336
1337 foreach ($queryParts as $param) {
1338 $item = explode('=', $param);
1339 $params[$item[0]] = $item[1];
1340 }
1341
1342 return $params;
1343 }
1344
1345 static function get_article_filters($filters, $title, $content, $link, $author, $tags, &$matched_rules = false) {
1346 $matches = array();
1347
1348 foreach ($filters as $filter) {
1349 $match_any_rule = $filter["match_any_rule"];
1350 $inverse = $filter["inverse"];
1351 $filter_match = false;
1352
1353 foreach ($filter["rules"] as $rule) {
1354 $match = false;
1355 $reg_exp = str_replace('/', '\/', $rule["reg_exp"]);
1356 $rule_inverse = $rule["inverse"];
1357
1358 if (!$reg_exp)
1359 continue;
1360
1361 switch ($rule["type"]) {
1362 case "title":
1363 $match = @preg_match("/$reg_exp/iu", $title);
1364 break;
1365 case "content":
1366 // we don't need to deal with multiline regexps
1367 $content = preg_replace("/[\r\n\t]/", "", $content);
1368
1369 $match = @preg_match("/$reg_exp/iu", $content);
1370 break;
1371 case "both":
1372 // we don't need to deal with multiline regexps
1373 $content = preg_replace("/[\r\n\t]/", "", $content);
1374
1375 $match = (@preg_match("/$reg_exp/iu", $title) || @preg_match("/$reg_exp/iu", $content));
1376 break;
1377 case "link":
1378 $match = @preg_match("/$reg_exp/iu", $link);
1379 break;
1380 case "author":
1381 $match = @preg_match("/$reg_exp/iu", $author);
1382 break;
1383 case "tag":
1384 foreach ($tags as $tag) {
1385 if (@preg_match("/$reg_exp/iu", $tag)) {
1386 $match = true;
1387 break;
1388 }
1389 }
1390 break;
1391 }
1392
1393 if ($rule_inverse) $match = !$match;
1394
1395 if ($match_any_rule) {
1396 if ($match) {
1397 $filter_match = true;
1398 break;
1399 }
1400 } else {
1401 $filter_match = $match;
1402 if (!$match) {
1403 break;
1404 }
1405 }
1406 }
1407
1408 if ($inverse) $filter_match = !$filter_match;
1409
1410 if ($filter_match) {
1411 if (is_array($matched_rules)) array_push($matched_rules, $rule);
1412
1413 foreach ($filter["actions"] AS $action) {
1414 array_push($matches, $action);
1415
1416 // if Stop action encountered, perform no further processing
1417 if (isset($action["type"]) && $action["type"] == "stop") return $matches;
1418 }
1419 }
1420 }
1421
1422 return $matches;
1423 }
1424
1425 static function find_article_filter($filters, $filter_name) {
1426 foreach ($filters as $f) {
1427 if ($f["type"] == $filter_name) {
1428 return $f;
1429 };
1430 }
1431 return false;
1432 }
1433
1434 static function find_article_filters($filters, $filter_name) {
1435 $results = array();
1436
1437 foreach ($filters as $f) {
1438 if ($f["type"] == $filter_name) {
1439 array_push($results, $f);
1440 };
1441 }
1442 return $results;
1443 }
1444
1445 static function calculate_article_score($filters) {
1446 $score = 0;
1447
1448 foreach ($filters as $f) {
1449 if ($f["type"] == "score") {
1450 $score += $f["param"];
1451 };
1452 }
1453 return $score;
1454 }
1455
1456 static function labels_contains_caption($labels, $caption) {
1457 foreach ($labels as $label) {
1458 if ($label[1] == $caption) {
1459 return true;
1460 }
1461 }
1462
1463 return false;
1464 }
1465
1466 static function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
1467 foreach ($filters as $f) {
1468 if ($f["type"] == "label") {
1469 if (!RSSUtils::labels_contains_caption($article_labels, $f["param"])) {
1470 Labels::add_article($id, $f["param"], $owner_uid);
1471 }
1472 }
1473 }
1474 }
1475
1476 static function make_guid_from_title($title) {
1477 return preg_replace("/[ \"\',.:;]/", "-",
1478 mb_strtolower(strip_tags($title), 'utf-8'));
1479 }
1480
1481 static function cleanup_counters_cache() {
1482 $pdo = Db::pdo();
1483
1484 $res = $pdo->query("DELETE FROM ttrss_counters_cache
1485 WHERE feed_id > 0 AND
1486 (SELECT COUNT(id) FROM ttrss_feeds WHERE
1487 id = feed_id AND
1488 ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid) = 0");
1489
1490 $frows = $res->rowCount();
1491
1492 $res = $pdo->query("DELETE FROM ttrss_cat_counters_cache
1493 WHERE feed_id > 0 AND
1494 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
1495 id = feed_id AND
1496 ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid) = 0");
1497
1498 $crows = $res->rowCount();
1499
1500 Debug::log("Removed $frows (feeds) $crows (cats) orphaned counter cache entries.");
1501 }
1502
1503 static function housekeeping_user($owner_uid) {
1504 $tmph = new PluginHost();
1505
1506 load_user_plugins($owner_uid, $tmph);
1507
1508 $tmph->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
1509 }
1510
1511 static function housekeeping_common() {
1512 RSSUtils::expire_cached_files();
1513 RSSUtils::expire_lock_files();
1514 RSSUtils::expire_error_log();
1515
1516 $count = RSSUtils::update_feedbrowser_cache();
1517 Debug::log("Feedbrowser updated, $count feeds processed.");
1518
1519 Article::purge_orphans();
1520 RSSUtils::cleanup_counters_cache();
1521
1522 PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
1523 }
1524
1525 static function check_feed_favicon($site_url, $feed) {
1526 # print "FAVICON [$site_url]: $favicon_url\n";
1527
1528 $icon_file = ICONS_DIR . "/$feed.ico";
1529
1530 if (!file_exists($icon_file)) {
1531 $favicon_url = get_favicon_url($site_url);
1532
1533 if ($favicon_url) {
1534 // Limiting to "image" type misses those served with text/plain
1535 $contents = fetch_file_contents($favicon_url); // , "image");
1536
1537 if ($contents) {
1538 // Crude image type matching.
1539 // Patterns gleaned from the file(1) source code.
1540 if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
1541 // 0 string \000\000\001\000 MS Windows icon resource
1542 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
1543 }
1544 elseif (preg_match('/^GIF8/', $contents)) {
1545 // 0 string GIF8 GIF image data
1546 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
1547 }
1548 elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
1549 // 0 string \x89PNG\x0d\x0a\x1a\x0a PNG image data
1550 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
1551 }
1552 elseif (preg_match('/^\xff\xd8/', $contents)) {
1553 // 0 beshort 0xffd8 JPEG image data
1554 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
1555 }
1556 elseif (preg_match('/^BM/', $contents)) {
1557 // 0 string BM PC bitmap (OS2, Windows BMP files)
1558 //error_log("check_feed_favicon, favicon_url=$favicon_url isa BMP image");
1559 }
1560 else {
1561 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
1562 $contents = "";
1563 }
1564 }
1565
1566 if ($contents) {
1567 $fp = @fopen($icon_file, "w");
1568
1569 if ($fp) {
1570 fwrite($fp, $contents);
1571 fclose($fp);
1572 chmod($icon_file, 0644);
1573 }
1574 }
1575 }
1576 return $icon_file;
1577 }
1578 }
1579
1580
1581
1582 }
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/