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[tt-rss.git] / include / rssfuncs.php
1 <?php
2 define_default('DAEMON_UPDATE_LOGIN_LIMIT', 30);
3 define_default('DAEMON_FEED_LIMIT', 500);
4 define_default('DAEMON_SLEEP_INTERVAL', 120);
5 define_default('_MIN_CACHE_FILE_SIZE', 1024);
6
7 function calculate_article_hash($article, $pluginhost) {
8 $tmp = "";
9
10 foreach ($article as $k => $v) {
11 if ($k != "feed" && isset($v)) {
12 $x = strip_tags(is_array($v) ? implode(",", $v) : $v);
13
14 //_debug("$k:" . sha1($x) . ":" . htmlspecialchars($x), true);
15
16 $tmp .= sha1("$k:" . sha1($x));
17 }
18 }
19
20 return sha1(implode(",", $pluginhost->get_plugin_names()) . $tmp);
21 }
22
23 function update_feedbrowser_cache() {
24
25 $result = db_query("SELECT feed_url, site_url, title, COUNT(id) AS subscribers
26 FROM ttrss_feeds WHERE feed_url NOT IN (SELECT feed_url FROM ttrss_feeds
27 WHERE private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%')
28 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
29
30 db_query("BEGIN");
31
32 db_query("DELETE FROM ttrss_feedbrowser_cache");
33
34 $count = 0;
35
36 while ($line = db_fetch_assoc($result)) {
37 $subscribers = db_escape_string($line["subscribers"]);
38 $feed_url = db_escape_string($line["feed_url"]);
39 $title = db_escape_string($line["title"]);
40 $site_url = db_escape_string($line["site_url"]);
41
42 $tmp_result = db_query("SELECT subscribers FROM
43 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
44
45 if (db_num_rows($tmp_result) == 0) {
46
47 db_query("INSERT INTO ttrss_feedbrowser_cache
48 (feed_url, site_url, title, subscribers) VALUES ('$feed_url',
49 '$site_url', '$title', '$subscribers')");
50
51 ++$count;
52
53 }
54
55 }
56
57 db_query("COMMIT");
58
59 return $count;
60
61 }
62
63
64 /**
65 * Update a feed batch.
66 * Used by daemons to update n feeds by run.
67 * Only update feed needing a update, and not being processed
68 * by another process.
69 *
70 * @param mixed $link Database link
71 * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
72 * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
73 * @param boolean $debug Set to false to disable debug output. Default to true.
74 * @return void
75 */
76 function update_daemon_common($limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
77 // Process all other feeds using last_updated and interval parameters
78
79 $schema_version = get_schema_version();
80
81 if ($schema_version != SCHEMA_VERSION) {
82 die("Schema version is wrong, please upgrade the database.\n");
83 }
84
85 define('PREFS_NO_CACHE', true);
86
87 // Test if the user has loggued in recently. If not, it does not update its feeds.
88 if (!SINGLE_USER_MODE && DAEMON_UPDATE_LOGIN_LIMIT > 0) {
89 if (DB_TYPE == "pgsql") {
90 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
91 } else {
92 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
93 }
94 } else {
95 $login_thresh_qpart = "";
96 }
97
98 // Test if the feed need a update (update interval exceeded).
99 if (DB_TYPE == "pgsql") {
100 $update_limit_qpart = "AND ((
101 ttrss_feeds.update_interval = 0
102 AND ttrss_user_prefs.value != '-1'
103 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
104 ) OR (
105 ttrss_feeds.update_interval > 0
106 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
107 ) OR (ttrss_feeds.last_updated IS NULL
108 AND ttrss_user_prefs.value != '-1')
109 OR (last_updated = '1970-01-01 00:00:00'
110 AND ttrss_user_prefs.value != '-1'))";
111 } else {
112 $update_limit_qpart = "AND ((
113 ttrss_feeds.update_interval = 0
114 AND ttrss_user_prefs.value != '-1'
115 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
116 ) OR (
117 ttrss_feeds.update_interval > 0
118 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
119 ) OR (ttrss_feeds.last_updated IS NULL
120 AND ttrss_user_prefs.value != '-1')
121 OR (last_updated = '1970-01-01 00:00:00'
122 AND ttrss_user_prefs.value != '-1'))";
123 }
124
125 // Test if feed is currently being updated by another process.
126 if (DB_TYPE == "pgsql") {
127 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '10 minutes')";
128 } else {
129 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 10 MINUTE))";
130 }
131
132 // Test if there is a limit to number of updated feeds
133 $query_limit = "";
134 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
135
136 // Update the least recently updated feeds first
137 $query_order = "ORDER BY last_updated";
138 if (DB_TYPE == "pgsql") $query_order .= " NULLS FIRST";
139
140 $query = "SELECT DISTINCT ttrss_feeds.feed_url, ttrss_feeds.last_updated
141 FROM
142 ttrss_feeds, ttrss_users, ttrss_user_prefs
143 WHERE
144 ttrss_feeds.owner_uid = ttrss_users.id
145 AND ttrss_user_prefs.profile IS NULL
146 AND ttrss_users.id = ttrss_user_prefs.owner_uid
147 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
148 $login_thresh_qpart $update_limit_qpart
149 $updstart_thresh_qpart
150 $query_order $query_limit";
151
152 // We search for feed needing update.
153 $result = db_query($query);
154
155 if($debug) _debug(sprintf("Scheduled %d feeds to update...", db_num_rows($result)));
156
157 // Here is a little cache magic in order to minimize risk of double feed updates.
158 $feeds_to_update = array();
159 while ($line = db_fetch_assoc($result)) {
160 array_push($feeds_to_update, db_escape_string($line['feed_url']));
161 }
162
163 // We update the feed last update started date before anything else.
164 // There is no lag due to feed contents downloads
165 // It prevent an other process to update the same feed.
166
167 if(count($feeds_to_update) > 0) {
168 $feeds_quoted = array();
169
170 foreach ($feeds_to_update as $feed) {
171 array_push($feeds_quoted, "'" . db_escape_string($feed) . "'");
172 }
173
174 db_query(sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
175 WHERE feed_url IN (%s)", implode(',', $feeds_quoted)));
176 }
177
178 $nf = 0;
179 $bstarted = microtime(true);
180
181 $batch_owners = array();
182
183 // For each feed, we call the feed update function.
184 foreach ($feeds_to_update as $feed) {
185 if($debug) _debug("Base feed: $feed");
186
187 //update_rss_feed($line["id"], true);
188
189 // since we have the data cached, we can deal with other feeds with the same url
190
191 $tmp_result = db_query("SELECT DISTINCT ttrss_feeds.id,last_updated,ttrss_feeds.owner_uid
192 FROM ttrss_feeds, ttrss_users, ttrss_user_prefs WHERE
193 ttrss_user_prefs.owner_uid = ttrss_feeds.owner_uid AND
194 ttrss_users.id = ttrss_user_prefs.owner_uid AND
195 ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL' AND
196 ttrss_user_prefs.profile IS NULL AND
197 feed_url = '".db_escape_string($feed)."'
198 $update_limit_qpart
199 $login_thresh_qpart
200 ORDER BY ttrss_feeds.id $query_limit");
201
202 if (db_num_rows($tmp_result) > 0) {
203 $rss = false;
204
205 while ($tline = db_fetch_assoc($tmp_result)) {
206 if($debug) _debug(" => " . $tline["last_updated"] . ", " . $tline["id"] . " " . $tline["owner_uid"]);
207
208 if (array_search($tline["owner_uid"], $batch_owners) === FALSE)
209 array_push($batch_owners, $tline["owner_uid"]);
210
211 $fstarted = microtime(true);
212 $rss = update_rss_feed($tline["id"], true, false);
213 _debug_suppress(false);
214
215 _debug(sprintf(" %.4f (sec)", microtime(true) - $fstarted));
216
217 ++$nf;
218 }
219 }
220 }
221
222 if ($nf > 0) {
223 _debug(sprintf("Processed %d feeds in %.4f (sec), %.4f (sec/feed avg)", $nf,
224 microtime(true) - $bstarted, (microtime(true) - $bstarted) / $nf));
225 }
226
227 foreach ($batch_owners as $owner_uid) {
228 _debug("Running housekeeping tasks for user $owner_uid...");
229
230 housekeeping_user($owner_uid);
231 }
232
233 require_once "digest.php";
234
235 // Send feed digests by email if needed.
236 send_headlines_digests($debug);
237
238 return $nf;
239
240 } // function update_daemon_common
241
242 // this is used when subscribing
243 function set_basic_feed_info($feed) {
244
245 $feed = db_escape_string($feed);
246
247 $result = db_query("SELECT feed_url,auth_pass,auth_login,auth_pass_encrypted
248 FROM ttrss_feeds WHERE id = '$feed'");
249
250 $auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result,
251 0, "auth_pass_encrypted"));
252
253 $auth_login = db_fetch_result($result, 0, "auth_login");
254 $auth_pass = db_fetch_result($result, 0, "auth_pass");
255
256 if ($auth_pass_encrypted && function_exists("mcrypt_decrypt")) {
257 require_once "crypt.php";
258 $auth_pass = decrypt_string($auth_pass);
259 }
260
261 $fetch_url = db_fetch_result($result, 0, "feed_url");
262
263 $feed_data = fetch_file_contents($fetch_url, false,
264 $auth_login, $auth_pass, false,
265 FEED_FETCH_TIMEOUT,
266 0);
267
268 global $fetch_curl_used;
269
270 if (!$fetch_curl_used) {
271 $tmp = @gzdecode($feed_data);
272
273 if ($tmp) $feed_data = $tmp;
274 }
275
276 $feed_data = trim($feed_data);
277
278 $rss = new FeedParser($feed_data);
279 $rss->init();
280
281 if (!$rss->error()) {
282
283 $result = db_query("SELECT title, site_url FROM ttrss_feeds WHERE id = '$feed'");
284
285 $registered_title = db_fetch_result($result, 0, "title");
286 $orig_site_url = db_fetch_result($result, 0, "site_url");
287
288 $site_url = db_escape_string(mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245));
289 $feed_title = db_escape_string(mb_substr($rss->get_title(), 0, 199));
290
291 if ($feed_title && (!$registered_title || $registered_title == "[Unknown]")) {
292 db_query("UPDATE ttrss_feeds SET
293 title = '$feed_title' WHERE id = '$feed'");
294 }
295
296 if ($site_url && $orig_site_url != $site_url) {
297 db_query("UPDATE ttrss_feeds SET
298 site_url = '$site_url' WHERE id = '$feed'");
299 }
300 }
301 }
302
303 // ignore_daemon is not used
304 function update_rss_feed($feed, $ignore_daemon = false, $no_cache = false, $rss = false) {
305
306 $debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
307
308 _debug_suppress(!$debug_enabled);
309 _debug("start", $debug_enabled);
310
311 $result = db_query("SELECT title FROM ttrss_feeds
312 WHERE id = '$feed'");
313
314 if (db_num_rows($result) == 0) {
315 _debug("feed $feed NOT FOUND/SKIPPED", $debug_enabled);
316 user_error("Attempt to update unknown/invalid feed $feed", E_USER_WARNING);
317 return false;
318 }
319
320 $title = db_fetch_result($result, 0, "title");
321
322 // feed was batch-subscribed or something, we need to get basic info
323 // this is not optimal currently as it fetches stuff separately TODO: optimize
324 if ($title == "[Unknown]") {
325 _debug("setting basic feed info for $feed...");
326 set_basic_feed_info($feed);
327 }
328
329 $result = db_query("SELECT id,update_interval,auth_login,
330 feed_url,auth_pass,cache_images,
331 mark_unread_on_update, owner_uid,
332 pubsub_state, auth_pass_encrypted,
333 feed_language
334 FROM ttrss_feeds WHERE id = '$feed'");
335
336 $owner_uid = db_fetch_result($result, 0, "owner_uid");
337 $mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
338 0, "mark_unread_on_update"));
339 $pubsub_state = db_fetch_result($result, 0, "pubsub_state");
340 $auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result,
341 0, "auth_pass_encrypted"));
342
343 db_query("UPDATE ttrss_feeds SET last_update_started = NOW()
344 WHERE id = '$feed'");
345
346 $auth_login = db_fetch_result($result, 0, "auth_login");
347 $auth_pass = db_fetch_result($result, 0, "auth_pass");
348
349 if ($auth_pass_encrypted && function_exists("mcrypt_decrypt")) {
350 require_once "crypt.php";
351 $auth_pass = decrypt_string($auth_pass);
352 }
353
354 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
355 $fetch_url = db_fetch_result($result, 0, "feed_url");
356 $feed_language = db_escape_string(mb_strtolower(db_fetch_result($result, 0, "feed_language")));
357 if (!$feed_language) $feed_language = 'english';
358
359 $feed = db_escape_string($feed);
360
361 $date_feed_processed = date('Y-m-d H:i');
362
363 $cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url) . ".xml";
364
365 $pluginhost = new PluginHost();
366 $pluginhost->set_debug($debug_enabled);
367 $user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
368
369 $pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
370 $pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
371 $pluginhost->load_data();
372
373 if ($rss && is_object($rss) && get_class($rss) == "FeedParser") {
374 _debug("using previously initialized parser object");
375 } else {
376 $rss_hash = false;
377
378 $force_refetch = isset($_REQUEST["force_refetch"]);
379 $feed_data = "";
380
381 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FETCH_FEED) as $plugin) {
382 $feed_data = $plugin->hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, 0, $auth_login, $auth_pass);
383 }
384
385 // try cache
386 if (!$feed_data &&
387 file_exists($cache_filename) &&
388 is_readable($cache_filename) &&
389 !$auth_login && !$auth_pass &&
390 filemtime($cache_filename) > time() - 30) {
391
392 _debug("using local cache [$cache_filename].", $debug_enabled);
393
394 @$feed_data = file_get_contents($cache_filename);
395
396 if ($feed_data) {
397 $rss_hash = sha1($feed_data);
398 }
399
400 } else {
401 _debug("local cache will not be used for this feed", $debug_enabled);
402 }
403
404 // fetch feed from source
405 if (!$feed_data) {
406 _debug("fetching [$fetch_url]...", $debug_enabled);
407
408 if (ini_get("open_basedir") && function_exists("curl_init")) {
409 _debug("not using CURL due to open_basedir restrictions");
410 }
411
412 $feed_data = fetch_file_contents($fetch_url, false,
413 $auth_login, $auth_pass, false,
414 $no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
415 0);
416
417 global $fetch_curl_used;
418
419 if (!$fetch_curl_used) {
420 $tmp = @gzdecode($feed_data);
421
422 if ($tmp) $feed_data = $tmp;
423 }
424
425 $feed_data = trim($feed_data);
426
427 _debug("fetch done.", $debug_enabled);
428
429 // cache vanilla feed data for re-use
430 if ($feed_data && !$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/simplepie")) {
431 $new_rss_hash = sha1($feed_data);
432
433 if ($new_rss_hash != $rss_hash) {
434 _debug("saving $cache_filename", $debug_enabled);
435 @file_put_contents($cache_filename, $feed_data);
436 }
437 }
438 }
439
440 if (!$feed_data) {
441 global $fetch_last_error;
442 global $fetch_last_error_code;
443
444 _debug("unable to fetch: $fetch_last_error [$fetch_last_error_code]", $debug_enabled);
445
446 $error_escaped = '';
447
448 // If-Modified-Since
449 if ($fetch_last_error_code != 304) {
450 $error_escaped = db_escape_string($fetch_last_error);
451 } else {
452 _debug("source claims data not modified, nothing to do.", $debug_enabled);
453 }
454
455 db_query(
456 "UPDATE ttrss_feeds SET last_error = '$error_escaped',
457 last_updated = NOW() WHERE id = '$feed'");
458
459 return;
460 }
461 }
462
463 foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_FETCHED) as $plugin) {
464 $feed_data = $plugin->hook_feed_fetched($feed_data, $fetch_url, $owner_uid, $feed);
465 }
466
467 // set last update to now so if anything *simplepie* crashes later we won't be
468 // continuously failing on the same feed
469 //db_query("UPDATE ttrss_feeds SET last_updated = NOW() WHERE id = '$feed'");
470
471 if (!$rss) {
472 $rss = new FeedParser($feed_data);
473 $rss->init();
474 }
475
476 // print_r($rss);
477
478 $feed = db_escape_string($feed);
479
480 if (!$rss->error()) {
481
482 // We use local pluginhost here because we need to load different per-user feed plugins
483 $pluginhost->run_hooks(PluginHost::HOOK_FEED_PARSED, "hook_feed_parsed", $rss);
484
485 _debug("language: $feed_language", $debug_enabled);
486 _debug("processing feed data...", $debug_enabled);
487
488 // db_query("BEGIN");
489
490 if (DB_TYPE == "pgsql") {
491 $favicon_interval_qpart = "favicon_last_checked < NOW() - INTERVAL '12 hour'";
492 } else {
493 $favicon_interval_qpart = "favicon_last_checked < DATE_SUB(NOW(), INTERVAL 12 HOUR)";
494 }
495
496 $result = db_query("SELECT owner_uid,favicon_avg_color,
497 (favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
498 favicon_needs_check
499 FROM ttrss_feeds WHERE id = '$feed'");
500
501 $favicon_needs_check = sql_bool_to_bool(db_fetch_result($result, 0,
502 "favicon_needs_check"));
503 $favicon_avg_color = db_fetch_result($result, 0, "favicon_avg_color");
504
505 $owner_uid = db_fetch_result($result, 0, "owner_uid");
506
507 $site_url = db_escape_string(mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245));
508
509 _debug("site_url: $site_url", $debug_enabled);
510 _debug("feed_title: " . $rss->get_title(), $debug_enabled);
511
512 if ($favicon_needs_check || $force_refetch) {
513
514 /* terrible hack: if we crash on floicon shit here, we won't check
515 * the icon avgcolor again (unless the icon got updated) */
516
517 $favicon_file = ICONS_DIR . "/$feed.ico";
518 $favicon_modified = @filemtime($favicon_file);
519
520 _debug("checking favicon...", $debug_enabled);
521
522 check_feed_favicon($site_url, $feed);
523 $favicon_modified_new = @filemtime($favicon_file);
524
525 if ($favicon_modified_new > $favicon_modified)
526 $favicon_avg_color = '';
527
528 if (file_exists($favicon_file) && function_exists("imagecreatefromstring") && $favicon_avg_color == '') {
529 require_once "colors.php";
530
531 db_query("UPDATE ttrss_feeds SET favicon_avg_color = 'fail' WHERE
532 id = '$feed'");
533
534 $favicon_color = db_escape_string(
535 calculate_avg_color($favicon_file));
536
537 $favicon_colorstring = ",favicon_avg_color = '".$favicon_color."'";
538 } else if ($favicon_avg_color == 'fail') {
539 _debug("floicon failed on this file, not trying to recalculate avg color", $debug_enabled);
540 }
541
542 db_query("UPDATE ttrss_feeds SET favicon_last_checked = NOW()
543 $favicon_colorstring
544 WHERE id = '$feed'");
545 }
546
547 _debug("loading filters & labels...", $debug_enabled);
548
549 $filters = load_filters($feed, $owner_uid);
550
551 _debug("" . count($filters) . " filters loaded.", $debug_enabled);
552
553 $items = $rss->get_items();
554
555 if (!is_array($items)) {
556 _debug("no articles found.", $debug_enabled);
557
558 db_query("UPDATE ttrss_feeds
559 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
560
561 return; // no articles
562 }
563
564 if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
565
566 _debug("checking for PUSH hub...", $debug_enabled);
567
568 $feed_hub_url = false;
569
570 $links = $rss->get_links('hub');
571
572 if ($links && is_array($links)) {
573 foreach ($links as $l) {
574 $feed_hub_url = $l;
575 break;
576 }
577 }
578
579 _debug("feed hub url: $feed_hub_url", $debug_enabled);
580
581 $feed_self_url = $fetch_url;
582
583 $links = $rss->get_links('self');
584
585 if ($links && is_array($links)) {
586 foreach ($links as $l) {
587 $feed_self_url = $l;
588 break;
589 }
590 }
591
592 _debug("feed self url = $feed_self_url");
593
594 if ($feed_hub_url && $feed_self_url && function_exists('curl_init') &&
595 !ini_get("open_basedir")) {
596
597 require_once 'lib/pubsubhubbub/Subscriber.php';
598
599 $callback_url = get_self_url_prefix() .
600 "/public.php?op=pubsub&id=$feed";
601
602 $s = new Pubsubhubbub\Subscriber\Subscriber($feed_hub_url, $callback_url);
603
604 $rc = $s->subscribe($feed_self_url);
605
606 _debug("feed hub url found, subscribe request sent. [rc=$rc]", $debug_enabled);
607
608 db_query("UPDATE ttrss_feeds SET pubsub_state = 1
609 WHERE id = '$feed'");
610 }
611 }
612
613 _debug("processing articles...", $debug_enabled);
614
615 $tstart = time();
616
617 foreach ($items as $item) {
618 if ($_REQUEST['xdebug'] == 3) {
619 print_r($item);
620 }
621
622 if (ini_get("max_execution_time") > 0 && time() - $tstart >= ini_get("max_execution_time") * 0.7) {
623 _debug("looks like there's too many articles to process at once, breaking out", $debug_enabled);
624 break;
625 }
626
627 $entry_guid = $item->get_id();
628 if (!$entry_guid) $entry_guid = $item->get_link();
629 if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
630 if (!$entry_guid) continue;
631
632 $entry_guid = "$owner_uid,$entry_guid";
633
634 $entry_guid_hashed = db_escape_string('SHA1:' . sha1($entry_guid));
635
636 _debug("guid $entry_guid / $entry_guid_hashed", $debug_enabled);
637
638 $entry_timestamp = "";
639
640 $entry_timestamp = $item->get_date();
641
642 _debug("orig date: " . $item->get_date(), $debug_enabled);
643
644 if ($entry_timestamp == -1 || !$entry_timestamp || $entry_timestamp > time()) {
645 $entry_timestamp = time();
646 }
647
648 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
649
650 _debug("date $entry_timestamp [$entry_timestamp_fmt]", $debug_enabled);
651
652 // $entry_title = html_entity_decode($item->get_title(), ENT_COMPAT, 'UTF-8');
653 // $entry_title = decode_numeric_entities($entry_title);
654 $entry_title = $item->get_title();
655
656 $entry_link = rewrite_relative_url($site_url, $item->get_link());
657
658 _debug("title $entry_title", $debug_enabled);
659 _debug("link $entry_link", $debug_enabled);
660
661 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
662
663 $entry_content = $item->get_content();
664 if (!$entry_content) $entry_content = $item->get_description();
665
666 if ($_REQUEST["xdebug"] == 2) {
667 print "content: ";
668 print htmlspecialchars($entry_content);
669 print "\n";
670 }
671
672 $entry_comments = db_escape_string(mb_substr($item->get_comments_url(), 0, 245));
673 $num_comments = (int) $item->get_comments_count();
674
675 $entry_author = $item->get_author(); // escaped later
676 $entry_guid = db_escape_string(mb_substr($entry_guid, 0, 245));
677
678 _debug("author $entry_author", $debug_enabled);
679 _debug("num_comments: $num_comments", $debug_enabled);
680 _debug("looking for tags...", $debug_enabled);
681
682 // parse <category> entries into tags
683
684 $additional_tags = array();
685
686 $additional_tags_src = $item->get_categories();
687
688 if (is_array($additional_tags_src)) {
689 foreach ($additional_tags_src as $tobj) {
690 array_push($additional_tags, $tobj);
691 }
692 }
693
694 $entry_tags = array_unique($additional_tags);
695
696 for ($i = 0; $i < count($entry_tags); $i++)
697 $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
698
699 _debug("tags found: " . join(",", $entry_tags), $debug_enabled);
700
701 _debug("done collecting data.", $debug_enabled);
702
703 $result = db_query("SELECT id, content_hash, lang FROM ttrss_entries
704 WHERE guid = '".db_escape_string($entry_guid)."' OR guid = '$entry_guid_hashed'");
705
706 if (db_num_rows($result) != 0) {
707 $base_entry_id = db_fetch_result($result, 0, "id");
708 $entry_stored_hash = db_fetch_result($result, 0, "content_hash");
709 $article_labels = get_article_labels($base_entry_id, $owner_uid);
710 $entry_language = db_fetch_result($result, 0, "lang");
711
712 $existing_tags = get_article_tags($base_entry_id, $owner_uid);
713 $entry_tags = array_unique(array_merge($entry_tags, $existing_tags));
714
715 } else {
716 $base_entry_id = false;
717 $entry_stored_hash = "";
718 $article_labels = array();
719 $entry_language = "";
720 }
721
722 $article = array("owner_uid" => $owner_uid, // read only
723 "guid" => $entry_guid, // read only
724 "guid_hashed" => $entry_guid_hashed, // read only
725 "title" => $entry_title,
726 "content" => $entry_content,
727 "link" => $entry_link,
728 "labels" => $article_labels, // current limitation: can add labels to article, can't remove them
729 "tags" => $entry_tags,
730 "author" => $entry_author,
731 "force_catchup" => false, // ugly hack for the time being
732 "score_modifier" => 0, // no previous value, plugin should recalculate score modifier based on content if needed
733 "language" => $entry_language,
734 "feed" => array("id" => $feed,
735 "fetch_url" => $fetch_url,
736 "site_url" => $site_url,
737 "cache_images" => $cache_images)
738 );
739
740 $entry_plugin_data = "";
741 $entry_current_hash = calculate_article_hash($article, $pluginhost);
742
743 _debug("article hash: $entry_current_hash [stored=$entry_stored_hash]", $debug_enabled);
744
745 if ($entry_current_hash == $entry_stored_hash && !isset($_REQUEST["force_rehash"])) {
746 _debug("stored article seems up to date [IID: $base_entry_id], updating timestamp only", $debug_enabled);
747
748 // we keep encountering the entry in feeds, so we need to
749 // update date_updated column so that we don't get horrible
750 // dupes when the entry gets purged and reinserted again e.g.
751 // in the case of SLOW SLOW OMG SLOW updating feeds
752
753 $base_entry_id = db_fetch_result($result, 0, "id");
754
755 db_query("UPDATE ttrss_entries SET date_updated = NOW()
756 WHERE id = '$base_entry_id'");
757
758 continue;
759 }
760
761 _debug("hash differs, applying plugin filters:", $debug_enabled);
762
763 foreach ($pluginhost->get_hooks(PluginHost::HOOK_ARTICLE_FILTER) as $plugin) {
764 _debug("... " . get_class($plugin), $debug_enabled);
765
766 $start = microtime(true);
767 $article = $plugin->hook_article_filter($article);
768
769 _debug("=== " . sprintf("%.4f (sec)", microtime(true) - $start), $debug_enabled);
770
771 $entry_plugin_data .= mb_strtolower(get_class($plugin)) . ",";
772 }
773
774 if ($_REQUEST["xdebug"] == 2) {
775 print "processed content: ";
776 print htmlspecialchars($article["content"]);
777 print "\n";
778 }
779
780 $entry_plugin_data = db_escape_string($entry_plugin_data);
781
782 _debug("plugin data: $entry_plugin_data", $debug_enabled);
783
784 // Workaround: 4-byte unicode requires utf8mb4 in MySQL. See https://tt-rss.org/forum/viewtopic.php?f=1&t=3377&p=20077#p20077
785 if (DB_TYPE == "mysql") {
786 foreach ($article as $k => $v) {
787
788 // i guess we'll have to take the risk of 4byte unicode labels & tags here
789 if (is_string($article[$k])) {
790 $article[$k] = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $v);
791 }
792 }
793 }
794
795 /* Collect article tags here so we could filter by them: */
796
797 $matched_rules = array();
798
799 $article_filters = get_article_filters($filters, $article["title"],
800 $article["content"], $article["link"], 0, $article["author"],
801 $article["tags"], $matched_rules);
802
803 if ($debug_enabled) {
804 _debug("matched filter rules: ", $debug_enabled);
805
806 if (count($matched_rules) != 0) {
807 print_r($matched_rules);
808 }
809
810 _debug("filter actions: ", $debug_enabled);
811
812 if (count($article_filters) != 0) {
813 print_r($article_filters);
814 }
815 }
816
817 $plugin_filter_names = find_article_filters($article_filters, "plugin");
818 $plugin_filter_actions = $pluginhost->get_filter_actions();
819
820 if (count($plugin_filter_names) > 0) {
821 _debug("applying plugin filter actions...", $debug_enabled);
822
823 foreach ($plugin_filter_names as $pfn) {
824 list($pfclass,$pfaction) = explode(":", $pfn["param"]);
825
826 if (isset($plugin_filter_actions[$pfclass])) {
827 $plugin = $pluginhost->get_plugin($pfclass);
828
829 _debug("... $pfclass: $pfaction", $debug_enabled);
830
831 if ($plugin) {
832 $start = microtime(true);
833 $article = $plugin->hook_article_filter_action($article, $pfaction);
834
835 _debug("=== " . sprintf("%.4f (sec)", microtime(true) - $start), $debug_enabled);
836 } else {
837 _debug("??? $pfclass: plugin object not found.");
838 }
839 } else {
840 _debug("??? $pfclass: filter plugin not registered.");
841 }
842 }
843 }
844
845 $entry_tags = $article["tags"];
846 $entry_guid = db_escape_string($entry_guid);
847 $entry_title = db_escape_string($article["title"]);
848 $entry_author = db_escape_string(mb_substr($article["author"], 0, 245));
849 $entry_link = db_escape_string($article["link"]);
850 $entry_content = $article["content"]; // escaped below
851 $entry_force_catchup = $article["force_catchup"];
852 $article_labels = $article["labels"];
853 $entry_score_modifier = (int) $article["score_modifier"];
854 $entry_language = db_escape_string($article["language"]);
855
856 if ($debug_enabled) {
857 _debug("article labels:", $debug_enabled);
858
859 if (count($article_labels) != 0) {
860 print_r($article_labels);
861 }
862 }
863
864 _debug("force catchup: $entry_force_catchup");
865
866 if ($cache_images && is_writable(CACHE_DIR . '/images'))
867 cache_media($entry_content, $site_url, $debug_enabled);
868
869 $entry_content = db_escape_string($entry_content, false);
870
871 //db_query("BEGIN");
872
873 $result = db_query("SELECT id FROM ttrss_entries
874 WHERE (guid = '$entry_guid' OR guid = '$entry_guid_hashed')");
875
876 if (db_num_rows($result) == 0) {
877
878 _debug("base guid [$entry_guid] not found", $debug_enabled);
879
880 // base post entry does not exist, create it
881
882 $result = db_query(
883 "INSERT INTO ttrss_entries
884 (title,
885 guid,
886 link,
887 updated,
888 content,
889 content_hash,
890 no_orig_date,
891 date_updated,
892 date_entered,
893 comments,
894 num_comments,
895 plugin_data,
896 lang,
897 author)
898 VALUES
899 ('$entry_title',
900 '$entry_guid_hashed',
901 '$entry_link',
902 '$entry_timestamp_fmt',
903 '$entry_content',
904 '$entry_current_hash',
905 false,
906 NOW(),
907 '$date_feed_processed',
908 '$entry_comments',
909 '$num_comments',
910 '$entry_plugin_data',
911 '$entry_language',
912 '$entry_author')");
913
914 } else {
915 $base_entry_id = db_fetch_result($result, 0, "id");
916 }
917
918 // now it should exist, if not - bad luck then
919
920 $result = db_query("SELECT id FROM ttrss_entries
921 WHERE guid = '$entry_guid' OR guid = '$entry_guid_hashed'");
922
923 $entry_ref_id = 0;
924 $entry_int_id = 0;
925
926 if (db_num_rows($result) == 1) {
927
928 _debug("base guid found, checking for user record", $debug_enabled);
929
930 $ref_id = db_fetch_result($result, 0, "id");
931 $entry_ref_id = $ref_id;
932
933 /* $stored_guid = db_fetch_result($result, 0, "guid");
934 if ($stored_guid != $entry_guid_hashed) {
935 if ($debug_enabled) _debug("upgrading compat guid to hashed one", $debug_enabled);
936
937 db_query("UPDATE ttrss_entries SET guid = '$entry_guid_hashed' WHERE
938 id = '$ref_id'");
939 } */
940
941 if (find_article_filter($article_filters, "filter")) {
942 //db_query("COMMIT"); // close transaction in progress
943 continue;
944 }
945
946 $score = calculate_article_score($article_filters) + $entry_score_modifier;
947
948 _debug("initial score: $score [including plugin modifier: $entry_score_modifier]", $debug_enabled);
949
950 // check for user post link to main table
951
952 $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
953 ref_id = '$ref_id' AND owner_uid = '$owner_uid'";
954
955 // if ($_REQUEST["xdebug"]) print "$query\n";
956
957 $result = db_query($query);
958
959 // okay it doesn't exist - create user entry
960 if (db_num_rows($result) == 0) {
961
962 _debug("user record not found, creating...", $debug_enabled);
963
964 if ($score >= -500 && !find_article_filter($article_filters, 'catchup') && !$entry_force_catchup) {
965 $unread = 'true';
966 $last_read_qpart = 'NULL';
967 } else {
968 $unread = 'false';
969 $last_read_qpart = 'NOW()';
970 }
971
972 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
973 $marked = 'true';
974 } else {
975 $marked = 'false';
976 }
977
978 if (find_article_filter($article_filters, 'publish')) {
979 $published = 'true';
980 } else {
981 $published = 'false';
982 }
983
984 $last_marked = ($marked == 'true') ? 'NOW()' : 'NULL';
985 $last_published = ($published == 'true') ? 'NOW()' : 'NULL';
986
987 $result = db_query(
988 "INSERT INTO ttrss_user_entries
989 (ref_id, owner_uid, feed_id, unread, last_read, marked,
990 published, score, tag_cache, label_cache, uuid,
991 last_marked, last_published)
992 VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
993 $last_read_qpart, $marked, $published, '$score', '', '',
994 '', $last_marked, $last_published)");
995
996 if (PUBSUBHUBBUB_HUB && $published == 'true') {
997 $rss_link = get_self_url_prefix() .
998 "/public.php?op=rss&id=-2&key=" .
999 get_feed_access_key(-2, false, $owner_uid);
1000
1001 $p = new pubsubhubbub\publisher\Publisher(PUBSUBHUBBUB_HUB);
1002
1003 /* $pubsub_result = */ $p->publish_update($rss_link);
1004 }
1005
1006 $result = db_query(
1007 "SELECT int_id FROM ttrss_user_entries WHERE
1008 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
1009 feed_id = '$feed' LIMIT 1");
1010
1011 if (db_num_rows($result) == 1) {
1012 $entry_int_id = db_fetch_result($result, 0, "int_id");
1013 }
1014 } else {
1015 _debug("user record FOUND", $debug_enabled);
1016
1017 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
1018 $entry_int_id = db_fetch_result($result, 0, "int_id");
1019 }
1020
1021 _debug("RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
1022
1023 if (DB_TYPE == "pgsql") {
1024 $tsvector_combined = db_escape_string(mb_substr($entry_title . ' ' . strip_tags(str_replace('<', ' <', $entry_content)),
1025 0, 1000000));
1026
1027 $tsvector_qpart = "tsvector_combined = to_tsvector('$feed_language', '$tsvector_combined'),";
1028
1029 } else {
1030 $tsvector_qpart = "";
1031 }
1032
1033 db_query("UPDATE ttrss_entries
1034 SET title = '$entry_title',
1035 content = '$entry_content',
1036 content_hash = '$entry_current_hash',
1037 updated = '$entry_timestamp_fmt',
1038 $tsvector_qpart
1039 num_comments = '$num_comments',
1040 plugin_data = '$entry_plugin_data',
1041 author = '$entry_author',
1042 lang = '$entry_language'
1043 WHERE id = '$ref_id'");
1044
1045 // update aux data
1046 db_query("UPDATE ttrss_user_entries
1047 SET score = '$score' WHERE ref_id = '$ref_id'");
1048
1049 if ($mark_unread_on_update) {
1050 _debug("article updated, marking unread as requested.", $debug_enabled);
1051
1052 db_query("UPDATE ttrss_user_entries
1053 SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
1054 }
1055 }
1056
1057 //db_query("COMMIT");
1058
1059 _debug("assigning labels [other]...", $debug_enabled);
1060
1061 foreach ($article_labels as $label) {
1062 label_add_article($entry_ref_id, $label[1], $owner_uid);
1063 }
1064
1065 _debug("assigning labels [filters]...", $debug_enabled);
1066
1067 assign_article_to_label_filters($entry_ref_id, $article_filters,
1068 $owner_uid, $article_labels);
1069
1070 _debug("looking for enclosures...", $debug_enabled);
1071
1072 // enclosures
1073
1074 $enclosures = array();
1075
1076 $encs = $item->get_enclosures();
1077
1078 if (is_array($encs)) {
1079 foreach ($encs as $e) {
1080 $e_item = array(
1081 rewrite_relative_url($site_url, $e->link),
1082 $e->type, $e->length, $e->title, $e->width, $e->height);
1083 array_push($enclosures, $e_item);
1084 }
1085 }
1086
1087 if ($cache_images && is_writable(CACHE_DIR . '/images'))
1088 cache_enclosures($enclosures, $site_url, $debug_enabled);
1089
1090 if ($debug_enabled) {
1091 _debug("article enclosures:", $debug_enabled);
1092 print_r($enclosures);
1093 }
1094
1095 //db_query("BEGIN");
1096
1097 // debugging
1098 // db_query("DELETE FROM ttrss_enclosures WHERE post_id = '$entry_ref_id'");
1099
1100 foreach ($enclosures as $enc) {
1101 $enc_url = db_escape_string($enc[0]);
1102 $enc_type = db_escape_string($enc[1]);
1103 $enc_dur = db_escape_string($enc[2]);
1104 $enc_title = db_escape_string($enc[3]);
1105 $enc_width = intval($enc[4]);
1106 $enc_height = intval($enc[5]);
1107
1108 $result = db_query("SELECT id FROM ttrss_enclosures
1109 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1110
1111 if (db_num_rows($result) == 0) {
1112 db_query("INSERT INTO ttrss_enclosures
1113 (content_url, content_type, title, duration, post_id, width, height) VALUES
1114 ('$enc_url', '$enc_type', '$enc_title', '$enc_dur', '$entry_ref_id', $enc_width, $enc_height)");
1115 }
1116 }
1117
1118 //db_query("COMMIT");
1119
1120 // check for manual tags (we have to do it here since they're loaded from filters)
1121
1122 foreach ($article_filters as $f) {
1123 if ($f["type"] == "tag") {
1124
1125 $manual_tags = trim_array(explode(",", $f["param"]));
1126
1127 foreach ($manual_tags as $tag) {
1128 if (tag_is_valid($tag)) {
1129 array_push($entry_tags, $tag);
1130 }
1131 }
1132 }
1133 }
1134
1135 // Skip boring tags
1136
1137 $boring_tags = trim_array(explode(",", mb_strtolower(get_pref(
1138 'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1139
1140 $filtered_tags = array();
1141 $tags_to_cache = array();
1142
1143 if ($entry_tags && is_array($entry_tags)) {
1144 foreach ($entry_tags as $tag) {
1145 if (array_search($tag, $boring_tags) === false) {
1146 array_push($filtered_tags, $tag);
1147 }
1148 }
1149 }
1150
1151 $filtered_tags = array_unique($filtered_tags);
1152
1153 if ($debug_enabled) {
1154 _debug("filtered article tags:", $debug_enabled);
1155 print_r($filtered_tags);
1156 }
1157
1158 // Save article tags in the database
1159
1160 if (count($filtered_tags) > 0) {
1161
1162 //db_query("BEGIN");
1163
1164 foreach ($filtered_tags as $tag) {
1165
1166 $tag = sanitize_tag($tag);
1167 $tag = db_escape_string($tag);
1168
1169 if (!tag_is_valid($tag)) continue;
1170
1171 $result = db_query("SELECT id FROM ttrss_tags
1172 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1173 owner_uid = '$owner_uid' LIMIT 1");
1174
1175 if ($result && db_num_rows($result) == 0) {
1176
1177 db_query("INSERT INTO ttrss_tags
1178 (owner_uid,tag_name,post_int_id)
1179 VALUES ('$owner_uid','$tag', '$entry_int_id')");
1180 }
1181
1182 array_push($tags_to_cache, $tag);
1183 }
1184
1185 /* update the cache */
1186
1187 $tags_to_cache = array_unique($tags_to_cache);
1188
1189 $tags_str = db_escape_string(join(",", $tags_to_cache));
1190
1191 db_query("UPDATE ttrss_user_entries
1192 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1193 AND owner_uid = $owner_uid");
1194
1195 //db_query("COMMIT");
1196 }
1197
1198 _debug("article processed", $debug_enabled);
1199 }
1200
1201 _debug("purging feed...", $debug_enabled);
1202
1203 purge_feed($feed, 0, $debug_enabled);
1204
1205 db_query("UPDATE ttrss_feeds
1206 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1207
1208 // db_query("COMMIT");
1209
1210 } else {
1211
1212 $error_msg = db_escape_string(mb_substr($rss->error(), 0, 245));
1213
1214 _debug("fetch error: $error_msg", $debug_enabled);
1215
1216 if (count($rss->errors()) > 1) {
1217 foreach ($rss->errors() as $error) {
1218 _debug("+ $error");
1219 }
1220 }
1221
1222 db_query(
1223 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1224 last_updated = NOW() WHERE id = '$feed'");
1225
1226 unset($rss);
1227 }
1228
1229 _debug("done", $debug_enabled);
1230
1231 return $rss;
1232 }
1233
1234 function cache_enclosures($enclosures, $site_url, $debug) {
1235 foreach ($enclosures as $enc) {
1236
1237 if (preg_match("/(image|audio|video)/", $enc[1])) {
1238
1239 $src = rewrite_relative_url($site_url, $enc[0]);
1240
1241 $local_filename = CACHE_DIR . "/images/" . sha1($src);
1242
1243 if ($debug) _debug("cache_enclosures: downloading: $src to $local_filename");
1244
1245 if (!file_exists($local_filename)) {
1246 $file_content = fetch_file_contents($src);
1247
1248 if ($file_content && strlen($file_content) > _MIN_CACHE_FILE_SIZE) {
1249 file_put_contents($local_filename, $file_content);
1250 }
1251 } else {
1252 touch($local_filename);
1253 }
1254 }
1255 }
1256 }
1257
1258 function cache_media($html, $site_url, $debug) {
1259 libxml_use_internal_errors(true);
1260
1261 $charset_hack = '<head>
1262 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
1263 </head>';
1264
1265 $doc = new DOMDocument();
1266 $doc->loadHTML($charset_hack . $html);
1267 $xpath = new DOMXPath($doc);
1268
1269 $entries = $xpath->query('(//img[@src])|(//video/source[@src])|(//audio/source[@src])');
1270
1271 foreach ($entries as $entry) {
1272 if ($entry->hasAttribute('src') && strpos($entry->getAttribute('src'), "data:") !== 0) {
1273 $src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
1274
1275 $local_filename = CACHE_DIR . "/images/" . sha1($src);
1276
1277 if ($debug) _debug("cache_media: downloading: $src to $local_filename");
1278
1279 if (!file_exists($local_filename)) {
1280 $file_content = fetch_file_contents($src);
1281
1282 if ($file_content && strlen($file_content) > _MIN_CACHE_FILE_SIZE) {
1283 file_put_contents($local_filename, $file_content);
1284 }
1285 } else {
1286 touch($local_filename);
1287 }
1288 }
1289 }
1290 }
1291
1292 function expire_error_log($debug) {
1293 if ($debug) _debug("Removing old error log entries...");
1294
1295 if (DB_TYPE == "pgsql") {
1296 db_query("DELETE FROM ttrss_error_log
1297 WHERE created_at < NOW() - INTERVAL '7 days'");
1298 } else {
1299 db_query("DELETE FROM ttrss_error_log
1300 WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
1301 }
1302
1303 }
1304
1305 function expire_lock_files($debug) {
1306 //if ($debug) _debug("Removing old lock files...");
1307
1308 $num_deleted = 0;
1309
1310 if (is_writable(LOCK_DIRECTORY)) {
1311 $files = glob(LOCK_DIRECTORY . "/*.lock");
1312
1313 if ($files) {
1314 foreach ($files as $file) {
1315 if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
1316 unlink($file);
1317 ++$num_deleted;
1318 }
1319 }
1320 }
1321 }
1322
1323 if ($debug) _debug("Removed $num_deleted old lock files.");
1324 }
1325
1326 function expire_cached_files($debug) {
1327 foreach (array("simplepie", "images", "export", "upload") as $dir) {
1328 $cache_dir = CACHE_DIR . "/$dir";
1329
1330 // if ($debug) _debug("Expiring $cache_dir");
1331
1332 $num_deleted = 0;
1333
1334 if (is_writable($cache_dir)) {
1335 $files = glob("$cache_dir/*");
1336
1337 if ($files) {
1338 foreach ($files as $file) {
1339 if (time() - filemtime($file) > 86400*7) {
1340 unlink($file);
1341
1342 ++$num_deleted;
1343 }
1344 }
1345 }
1346 }
1347
1348 if ($debug) _debug("$cache_dir: removed $num_deleted files.");
1349 }
1350 }
1351
1352 /**
1353 * Source: http://www.php.net/manual/en/function.parse-url.php#104527
1354 * Returns the url query as associative array
1355 *
1356 * @param string query
1357 * @return array params
1358 */
1359 function convertUrlQuery($query) {
1360 $queryParts = explode('&', $query);
1361
1362 $params = array();
1363
1364 foreach ($queryParts as $param) {
1365 $item = explode('=', $param);
1366 $params[$item[0]] = $item[1];
1367 }
1368
1369 return $params;
1370 }
1371
1372 function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags, &$matched_rules = false) {
1373 $matches = array();
1374
1375 foreach ($filters as $filter) {
1376 $match_any_rule = $filter["match_any_rule"];
1377 $inverse = $filter["inverse"];
1378 $filter_match = false;
1379
1380 foreach ($filter["rules"] as $rule) {
1381 $match = false;
1382 $reg_exp = str_replace('/', '\/', $rule["reg_exp"]);
1383 $rule_inverse = $rule["inverse"];
1384
1385 if (!$reg_exp)
1386 continue;
1387
1388 switch ($rule["type"]) {
1389 case "title":
1390 $match = @preg_match("/$reg_exp/iu", $title);
1391 break;
1392 case "content":
1393 // we don't need to deal with multiline regexps
1394 $content = preg_replace("/[\r\n\t]/", "", $content);
1395
1396 $match = @preg_match("/$reg_exp/iu", $content);
1397 break;
1398 case "both":
1399 // we don't need to deal with multiline regexps
1400 $content = preg_replace("/[\r\n\t]/", "", $content);
1401
1402 $match = (@preg_match("/$reg_exp/iu", $title) || @preg_match("/$reg_exp/iu", $content));
1403 break;
1404 case "link":
1405 $match = @preg_match("/$reg_exp/iu", $link);
1406 break;
1407 case "author":
1408 $match = @preg_match("/$reg_exp/iu", $author);
1409 break;
1410 case "tag":
1411 foreach ($tags as $tag) {
1412 if (@preg_match("/$reg_exp/iu", $tag)) {
1413 $match = true;
1414 break;
1415 }
1416 }
1417 break;
1418 }
1419
1420 if ($rule_inverse) $match = !$match;
1421
1422 if ($match_any_rule) {
1423 if ($match) {
1424 $filter_match = true;
1425 break;
1426 }
1427 } else {
1428 $filter_match = $match;
1429 if (!$match) {
1430 break;
1431 }
1432 }
1433 }
1434
1435 if ($inverse) $filter_match = !$filter_match;
1436
1437 if ($filter_match) {
1438 if (is_array($matched_rules)) array_push($matched_rules, $rule);
1439
1440 foreach ($filter["actions"] AS $action) {
1441 array_push($matches, $action);
1442
1443 // if Stop action encountered, perform no further processing
1444 if (isset($action["type"]) && $action["type"] == "stop") return $matches;
1445 }
1446 }
1447 }
1448
1449 return $matches;
1450 }
1451
1452 function find_article_filter($filters, $filter_name) {
1453 foreach ($filters as $f) {
1454 if ($f["type"] == $filter_name) {
1455 return $f;
1456 };
1457 }
1458 return false;
1459 }
1460
1461 function find_article_filters($filters, $filter_name) {
1462 $results = array();
1463
1464 foreach ($filters as $f) {
1465 if ($f["type"] == $filter_name) {
1466 array_push($results, $f);
1467 };
1468 }
1469 return $results;
1470 }
1471
1472 function calculate_article_score($filters) {
1473 $score = 0;
1474
1475 foreach ($filters as $f) {
1476 if ($f["type"] == "score") {
1477 $score += $f["param"];
1478 };
1479 }
1480 return $score;
1481 }
1482
1483 function labels_contains_caption($labels, $caption) {
1484 foreach ($labels as $label) {
1485 if ($label[1] == $caption) {
1486 return true;
1487 }
1488 }
1489
1490 return false;
1491 }
1492
1493 function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
1494 foreach ($filters as $f) {
1495 if ($f["type"] == "label") {
1496 if (!labels_contains_caption($article_labels, $f["param"])) {
1497 label_add_article($id, $f["param"], $owner_uid);
1498 }
1499 }
1500 }
1501 }
1502
1503 function make_guid_from_title($title) {
1504 return preg_replace("/[ \"\',.:;]/", "-",
1505 mb_strtolower(strip_tags($title), 'utf-8'));
1506 }
1507
1508 /* function verify_feed_xml($feed_data) {
1509 libxml_use_internal_errors(true);
1510 $doc = new DOMDocument();
1511 $doc->loadXML($feed_data);
1512 $error = libxml_get_last_error();
1513 libxml_clear_errors();
1514 return $error;
1515 } */
1516
1517 function cleanup_counters_cache($debug) {
1518 $result = db_query("DELETE FROM ttrss_counters_cache
1519 WHERE feed_id > 0 AND
1520 (SELECT COUNT(id) FROM ttrss_feeds WHERE
1521 id = feed_id AND
1522 ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid) = 0");
1523 $frows = db_affected_rows($result);
1524
1525 $result = db_query("DELETE FROM ttrss_cat_counters_cache
1526 WHERE feed_id > 0 AND
1527 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
1528 id = feed_id AND
1529 ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid) = 0");
1530 $crows = db_affected_rows($result);
1531
1532 _debug("Removed $frows (feeds) $crows (cats) orphaned counter cache entries.");
1533 }
1534
1535 function housekeeping_user($owner_uid) {
1536 $tmph = new PluginHost();
1537
1538 load_user_plugins($owner_uid, $tmph);
1539
1540 $tmph->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
1541 }
1542
1543 function housekeeping_common($debug) {
1544 expire_cached_files($debug);
1545 expire_lock_files($debug);
1546 expire_error_log($debug);
1547
1548 $count = update_feedbrowser_cache();
1549 _debug("Feedbrowser updated, $count feeds processed.");
1550
1551 purge_orphans( true);
1552 cleanup_counters_cache($debug);
1553
1554 //$rc = cleanup_tags( 14, 50000);
1555 //_debug("Cleaned $rc cached tags.");
1556
1557 PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
1558 }
1559 ?>
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/