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[tt-rss.git] / functions.php
1 <?php
2
3 /*      if ($_GET["debug"]) {
4                 define('DEFAULT_ERROR_LEVEL', E_ALL);
5         } else {
6                 define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
7         } */
8
9         require_once 'config.php';
10
11         if (DB_TYPE == "pgsql") {
12                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
13         } else {
14                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
15         }
16
17         /**
18          * Return available translations names.
19          * 
20          * @access public
21          * @return array A array of available translations.
22          */
23         function get_translations() {
24                 $tr = array(
25                                         "auto"  => "Detect automatically",
26                                         "en_US" => "English",
27                                         "fr_FR" => "Français",
28                                         "hu_HU" => "Magyar (Hungarian)",
29                                         "it_IT" => "Italiano",
30                                         "ja_JP" => "日本語 (Japanese)",
31                                         "nb_NO" => "Norwegian bokmål",
32                                         "ru_RU" => "Русский",
33                                         "pt_BR" => "Portuguese/Brazil",
34                                         "zh_CN" => "Simplified Chinese");
35
36                 return $tr;
37         }
38
39         if (ENABLE_TRANSLATIONS == true) { // If translations are enabled.
40                 require_once "accept-to-gettext.php";
41                 require_once "lib/gettext/gettext.inc";
42
43                 function startup_gettext() {
44         
45                         # Get locale from Accept-Language header
46                         $lang = al2gt(array_keys(get_translations()), "text/html");
47
48                         if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
49                                 $lang = _TRANSLATION_OVERRIDE_DEFAULT;
50                         }
51
52                         if ($_COOKIE["ttrss_lang"] && $_COOKIE["ttrss_lang"] != "auto") {                               
53                                 $lang = $_COOKIE["ttrss_lang"];
54                         }
55
56                         /* In login action of mobile version */
57                         if ($_POST["language"] && defined('MOBILE_VERSION')) {
58                                 $lang = $_POST["language"];
59                                 $_COOKIE["ttrss_lang"] = $lang;
60                         }
61
62                         if ($lang) {
63                                 if (defined('LC_MESSAGES')) {
64                                         _setlocale(LC_MESSAGES, $lang);
65                                 } else if (defined('LC_ALL')) {
66                                         _setlocale(LC_ALL, $lang);
67                                 } else {
68                                         die("can't setlocale(): please set ENABLE_TRANSLATIONS to false in config.php");
69                                 }
70
71                                 if (defined('MOBILE_VERSION')) {
72                                         _bindtextdomain("messages", "../locale");
73                                 } else {
74                                         _bindtextdomain("messages", "locale");
75                                 }
76
77                                 _textdomain("messages");
78                                 _bind_textdomain_codeset("messages", "UTF-8");
79                         }
80                 }
81
82                 startup_gettext();
83
84         } else { // If translations are enabled.
85                 function __($msg) {
86                         return $msg;
87                 }
88                 function startup_gettext() {
89                         // no-op
90                         return true;
91                 }
92         } // If translations are enabled.
93
94         require_once 'db-prefs.php';
95         require_once 'compat.php';
96         require_once 'errors.php';
97         require_once 'version.php';
98
99         require_once 'lib/phpmailer/class.phpmailer.php';
100
101         define('MAGPIE_USER_AGENT_EXT', ' (Tiny Tiny RSS/' . VERSION . ')');
102         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
103         define('MAGPIE_CACHE_AGE', 60*15); // 15 minutes
104
105         require_once "lib/simplepie/simplepie.inc";
106         require_once "lib/magpierss/rss_fetch.inc";
107         require_once 'lib/magpierss/rss_utils.inc';
108
109         /**
110          * Print a timestamped debug message.
111          * 
112          * @param string $msg The debug message.
113          * @return void
114          */
115         function _debug($msg) {
116                 $ts = strftime("%H:%M:%S", time());
117                 if (function_exists('posix_getpid')) {
118                         $ts = "$ts/" . posix_getpid();
119                 }
120                 print "[$ts] $msg\n";
121         } // function _debug
122
123         /**
124          * Purge a feed old posts.
125          * 
126          * @param mixed $link A database connection.
127          * @param mixed $feed_id The id of the purged feed.
128          * @param mixed $purge_interval Olderness of purged posts.
129          * @param boolean $debug Set to True to enable the debug. False by default.
130          * @access public
131          * @return void
132          */
133         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
134
135                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
136                 
137                 $rows = -1;
138
139                 $result = db_query($link, 
140                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
141
142                 $owner_uid = false;
143
144                 if (db_num_rows($result) == 1) {
145                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
146                 }
147
148                 if ($purge_interval == -1 || !$purge_interval) {
149                         if ($owner_uid) {
150                                 ccache_update($link, $feed_id, $owner_uid);
151                         }
152                         return;
153                 }
154
155                 if (!$owner_uid) return;
156
157                 if (FORCE_ARTICLE_PURGE == 0) {
158                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
159                                 $owner_uid, false);
160                 } else {
161                         $purge_unread = true;
162                         $purge_interval = FORCE_ARTICLE_PURGE;
163                 }
164
165                 if (!$purge_unread) $query_limit = " unread = false AND ";
166
167                 if (DB_TYPE == "pgsql") {
168 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
169                                 marked = false AND feed_id = '$feed_id' AND
170                                 (SELECT date_entered FROM ttrss_entries WHERE
171                                         id = ref_id) < NOW() - INTERVAL '$purge_interval days'"); */
172
173                         $pg_version = get_pgsql_version($link);
174
175                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
176
177                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE 
178                                         ttrss_entries.id = ref_id AND 
179                                         marked = false AND 
180                                         feed_id = '$feed_id' AND 
181                                         $query_limit
182                                         ttrss_entries.date_entered < NOW() - INTERVAL '$purge_interval days'");
183
184                         } else {
185
186                                 $result = db_query($link, "DELETE FROM ttrss_user_entries 
187                                         USING ttrss_entries 
188                                         WHERE ttrss_entries.id = ref_id AND 
189                                         marked = false AND 
190                                         feed_id = '$feed_id' AND 
191                                         $query_limit
192                                         ttrss_entries.date_entered < NOW() - INTERVAL '$purge_interval days'");
193                         }
194
195                         $rows = pg_affected_rows($result);
196                         
197                 } else {
198                 
199 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
200                                 marked = false AND feed_id = '$feed_id' AND
201                                 (SELECT date_entered FROM ttrss_entries WHERE 
202                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
203
204                         $result = db_query($link, "DELETE FROM ttrss_user_entries 
205                                 USING ttrss_user_entries, ttrss_entries 
206                                 WHERE ttrss_entries.id = ref_id AND 
207                                 marked = false AND 
208                                 feed_id = '$feed_id' AND 
209                                 $query_limit
210                                 ttrss_entries.date_entered < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
211                                         
212                         $rows = mysql_affected_rows($link);
213
214                 }
215
216                 ccache_update($link, $feed_id, $owner_uid);
217
218                 if ($debug) {
219                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
220                 }
221         } // function purge_feed
222
223         /**
224          * Purge old posts from old feeds.
225          * 
226          * @param mixed $link A database connection
227          * @param boolean $do_output Set to true to enable printed output, false by default.
228          * @param integer $limit The maximal number of removed posts.
229          * @access public
230          * @return void
231          */
232         function global_purge_old_posts($link, $do_output = false, $limit = false) {
233
234                 $random_qpart = sql_random_function();
235
236                 if ($limit) {
237                         $limit_qpart = "LIMIT $limit";
238                 } else {
239                         $limit_qpart = "";
240                 }
241                 
242                 $result = db_query($link, 
243                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds 
244                                 ORDER BY $random_qpart $limit_qpart");
245
246                 while ($line = db_fetch_assoc($result)) {
247
248                         $feed_id = $line["id"];
249                         $purge_interval = $line["purge_interval"];
250                         $owner_uid = $line["owner_uid"];
251
252                         if ($purge_interval == 0) {
253                         
254                                 $tmp_result = db_query($link, 
255                                         "SELECT value FROM ttrss_user_prefs WHERE
256                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
257
258                                 if (db_num_rows($tmp_result) != 0) {                    
259                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
260                                 }
261                         }
262
263                         if ($do_output) {
264 //                              print "Feed $feed_id: purge interval = $purge_interval\n";
265                         }
266
267                         if ($purge_interval > 0 || FORCE_ARTICLE_PURGE) {
268                                 purge_feed($link, $feed_id, $purge_interval, $do_output);
269                         }
270                 }       
271
272                 // purge orphaned posts in main content table
273                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE 
274                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
275
276                 if ($do_output) {
277                         $rows = db_affected_rows($link, $result);
278                         _debug("Purged $rows orphaned posts.");
279                 }
280
281         } // function global_purge_old_posts
282
283         function feed_purge_interval($link, $feed_id) {
284
285                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds 
286                         WHERE id = '$feed_id'");
287
288                 if (db_num_rows($result) == 1) {
289                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
290                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
291
292                         if ($purge_interval == 0) $purge_interval = get_pref($link, 
293                                 'PURGE_OLD_DAYS', $owner_uid);
294
295                         return $purge_interval;
296
297                 } else {
298                         return -1;
299                 }
300         }
301
302         function purge_old_posts($link) {
303
304                 $user_id = $_SESSION["uid"];
305         
306                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds 
307                         WHERE owner_uid = '$user_id'");
308
309                 while ($line = db_fetch_assoc($result)) {
310
311                         $feed_id = $line["id"];
312                         $purge_interval = $line["purge_interval"];
313
314                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
315
316                         if ($purge_interval > 0) {
317                                 purge_feed($link, $feed_id, $purge_interval);
318                         }
319                 }       
320
321                 purge_orphans($link);
322         }
323
324         function purge_orphans($link) {
325                 // purge orphaned posts in main content table
326                 db_query($link, "DELETE FROM ttrss_entries WHERE 
327                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
328         }
329
330         function get_feed_update_interval($link, $feed_id) {
331                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
332                         ttrss_feeds WHERE id = '$feed_id'");
333
334                 if (db_num_rows($result) == 1) {
335                         $update_interval = db_fetch_result($result, 0, "update_interval");
336                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
337
338                         if ($update_interval != 0) {
339                                 return $update_interval;
340                         } else {
341                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
342                         }
343
344                 } else {
345                         return -1;
346                 }
347         }
348
349         function fetch_file_contents($url) {
350                 if (USE_CURL_FOR_ICONS) {
351                         $tmpfile = tempnam(TMP_DIRECTORY, "ttrss-tmp");
352
353                         $ch = curl_init($url);
354                         $fp = fopen($tmpfile, "w");
355
356                         if ($fp) {
357                                 curl_setopt($ch, CURLOPT_FILE, $fp);
358                                 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
359                                 curl_setopt($ch, CURLOPT_TIMEOUT, 45);
360                                 curl_exec($ch);
361                                 curl_close($ch);
362                                 fclose($fp);                                    
363                         }
364
365                         $contents =  file_get_contents($tmpfile);
366                         unlink($tmpfile);
367
368                         return $contents;
369
370                 } else {
371                         return file_get_contents($url);
372                 }
373
374         }
375
376         /**
377          * Try to determine the favicon URL for a feed.
378          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
379          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
380          * 
381          * @param string $url A feed or page URL
382          * @access public
383          * @return mixed The favicon URL, or false if none was found.
384          */
385         function get_favicon_url($url) {
386
387                 if ($html = @fetch_file_contents($url)) {
388
389                         if ( preg_match('/<link[^>]+rel="(?:shortcut )?icon"[^>]+?href="([^"]+?)"/si', $html, $matches)) {
390                                 // Attempt to grab a favicon link from their webpage url
391                                 $linkUrl = html_entity_decode($matches[1]);
392
393                                 if (substr($linkUrl, 0, 1) == '/') {
394                                         $urlParts = parse_url($url);
395                                         $faviconURL = $urlParts['scheme'].'://'.$urlParts['host'].$linkUrl;
396                                 } else if (substr($linkUrl, 0, 7) == 'http://') {
397                                         $faviconURL = $linkUrl;
398                                 } else if (substr($url, -1, 1) == '/') {
399                                         $faviconURL = $url.$linkUrl;
400                                 } else {
401                                         $faviconURL = $url.'/'.$linkUrl;
402                                 }
403
404                         } else {
405                                 // If unsuccessful, attempt to "guess" the favicon location
406                                 $urlParts = parse_url($url);
407                                 $faviconURL = $urlParts['scheme'].'://'.$urlParts['host'].'/favicon.ico';
408                         }
409                 }
410
411                 // Run a test to see if what we have attempted to get actually exists.
412                 if(USE_CURL_FOR_ICONS || url_validate($faviconURL)) {
413                         return $faviconURL;
414                 } else {
415                         return false;
416                 }
417         } // function get_favicon_url
418
419         /**
420          * Check if a link is a valid and working URL.
421          * 
422          * @param mixed $link A URL to check
423          * @access public
424          * @return boolean True if the URL is valid, false otherwise.
425          */
426         function url_validate($link) {
427                 
428                 $url_parts = @parse_url($link);
429
430                 if ( empty( $url_parts["host"] ) )
431                                 return false;
432
433                 if ( !empty( $url_parts["path"] ) ) {
434                                 $documentpath = $url_parts["path"];
435                 } else {
436                                 $documentpath = "/";
437                 }
438
439                 if ( !empty( $url_parts["query"] ) )
440                                 $documentpath .= "?" . $url_parts["query"];
441
442                 $host = $url_parts["host"];
443                 $port = $url_parts["port"];
444                 
445                 if ( empty($port) )
446                                 $port = "80";
447
448                 $socket = @fsockopen( $host, $port, $errno, $errstr, 30 );
449                 
450                 if ( !$socket )
451                                 return false;
452                                 
453                 fwrite ($socket, "HEAD ".$documentpath." HTTP/1.0\r\nHost: $host\r\n\r\n");
454
455                 $http_response = fgets( $socket, 22 );
456
457                 $responses = "/(200 OK)|(30[0-9] Moved)/";
458                 if ( preg_match($responses, $http_response) ) {
459                                 fclose($socket);
460                                 return true;
461                 } else {
462                                 return false;
463                 }
464
465         } // function url_validate
466
467         function check_feed_favicon($site_url, $feed, $link) {
468                 $favicon_url = get_favicon_url($site_url);
469
470 #               print "FAVICON [$site_url]: $favicon_url\n";
471
472                 error_reporting(0);
473
474                 $icon_file = ICONS_DIR . "/$feed.ico";
475
476                 if ($favicon_url && !file_exists($icon_file)) {
477                         $contents = fetch_file_contents($favicon_url);
478
479                         $fp = fopen($icon_file, "w");
480
481                         if ($fp) {
482                                 fwrite($fp, $contents);
483                                 fclose($fp);
484                                 chmod($icon_file, 0644);
485                         }
486                 }
487
488                 error_reporting(DEFAULT_ERROR_LEVEL);
489
490         }
491
492         function update_rss_feed($link, $feed_url, $feed, $ignore_daemon = false) {
493
494                 if (!$_GET["daemon"] && !$ignore_daemon) {
495                         return false;
496                 }
497
498                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
499                         _debug("update_rss_feed: start");
500                 }
501
502                 if (!$ignore_daemon) {
503
504                         if (DB_TYPE == "pgsql") {
505                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
506                                 } else {
507                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
508                                 }                       
509         
510                         $result = db_query($link, "SELECT id,update_interval,auth_login,
511                                 auth_pass,cache_images,update_method
512                                 FROM ttrss_feeds WHERE id = '$feed' AND $updstart_thresh_qpart");
513
514                 } else {
515
516                         $result = db_query($link, "SELECT id,update_interval,auth_login,
517                                 auth_pass,cache_images,update_method,hidden,last_updated
518                                 FROM ttrss_feeds WHERE id = '$feed'");
519
520                 }
521
522                 if (db_num_rows($result) == 0) {
523                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
524                                 _debug("update_rss_feed: feed $feed [$feed_url] NOT FOUND/SKIPPED");
525                         }               
526                         return false;
527                 }
528
529                 $hidden = sql_bool_to_bool(db_fetch_result($result, 0, "hidden"));
530                 $update_method = db_fetch_result($result, 0, "update_method");
531                 $last_updated = db_fetch_result($result, 0, "last_updated");
532
533                 db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
534                         WHERE id = '$feed'");
535
536                 $auth_login = db_fetch_result($result, 0, "auth_login");
537                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
538
539                 if (ALLOW_SELECT_UPDATE_METHOD) {
540                         if (ENABLE_SIMPLEPIE) {
541                                 $use_simplepie = $update_method != 1;
542                         } else {
543                                 $use_simplepie = $update_method == 2;
544                         }
545                 } else {
546                         $use_simplepie = ENABLE_SIMPLEPIE;
547                 }
548
549                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
550                         _debug("use simplepie: $use_simplepie (feed setting: $update_method)\n");
551                 }
552
553                 if (!$use_simplepie) {
554                         $auth_login = urlencode($auth_login);
555                         $auth_pass = urlencode($auth_pass);
556                 }
557
558                 $update_interval = db_fetch_result($result, 0, "update_interval");
559                 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
560
561                 if ($update_interval < 0) { return; }
562
563                 $feed = db_escape_string($feed);
564
565                 $fetch_url = $feed_url;
566
567                 if ($auth_login && $auth_pass) {
568                         $url_parts = array();
569                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
570
571                         if ($url_parts[1] && $url_parts[2]) {
572                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
573                         }
574
575                 }
576
577                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
578                         _debug("update_rss_feed: fetching [$fetch_url]...");
579                 }
580
581                 if (!defined('DAEMON_EXTENDED_DEBUG') && !$_GET['xdebug']) {
582                         error_reporting(0);
583                 }
584
585                 if (!$use_simplepie) {
586                         $rss = fetch_rss($fetch_url);
587                 } else {
588                         if (!is_dir(SIMPLEPIE_CACHE_DIR)) {
589                                 mkdir(SIMPLEPIE_CACHE_DIR);
590                         }
591
592                         $rss = new SimplePie();
593                         $rss->set_useragent(SIMPLEPIE_USERAGENT . MAGPIE_USER_AGENT_EXT);
594 #                       $rss->set_timeout(10);
595                         $rss->set_feed_url($fetch_url);
596                         $rss->set_output_encoding('UTF-8');
597
598                         if (SIMPLEPIE_CACHE_IMAGES && $cache_images) {
599                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
600                                         _debug("enabling image cache");
601                                 }
602
603                                 $rss->set_image_handler('./image.php', 'i');
604                         }
605
606                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
607                                 _debug("feed update interval (sec): " .
608                                         get_feed_update_interval($link, $feed)*60);
609                         }
610
611                         if (is_dir(SIMPLEPIE_CACHE_DIR)) {
612                                 $rss->set_cache_location(SIMPLEPIE_CACHE_DIR);
613                                 $rss->set_cache_duration(get_feed_update_interval($link, $feed) * 60);
614                         }
615
616                         $rss->init();
617                 }
618
619 //              print_r($rss);
620
621                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
622                         _debug("update_rss_feed: fetch done, parsing...");
623                 } else {
624                         error_reporting (DEFAULT_ERROR_LEVEL);
625                 }
626
627                 $feed = db_escape_string($feed);
628
629                 if ($use_simplepie) {
630                         $fetch_ok = !$rss->error();
631                 } else {
632                         $fetch_ok = !!$rss;
633                 }
634
635                 if ($fetch_ok) {
636
637                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
638                                 _debug("update_rss_feed: processing feed data...");
639                         }
640
641 //                      db_query($link, "BEGIN");
642
643                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
644                                 FROM ttrss_feeds WHERE id = '$feed'");
645
646                         $registered_title = db_fetch_result($result, 0, "title");
647                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
648                         $orig_site_url = db_fetch_result($result, 0, "site_url");
649
650                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
651
652                         if ($use_simplepie) {
653                                 $site_url = $rss->get_link();
654                         } else {
655                                 $site_url = $rss->channel["link"];
656                         }
657
658                         if (get_pref($link, 'ENABLE_FEED_ICONS', $owner_uid, false)) {  
659                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
660                                         _debug("update_rss_feed: checking favicon...");
661                                 }
662
663                                 check_feed_favicon($site_url, $feed, $link);
664                         }
665
666                         if (!$registered_title || $registered_title == "[Unknown]") {
667
668                                 if ($use_simplepie) {
669                                         $feed_title = db_escape_string($rss->get_title());
670                                 } else {
671                                         $feed_title = db_escape_string($rss->channel["title"]);
672                                 }
673
674                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
675                                         _debug("update_rss_feed: registering title: $feed_title");
676                                 }
677                                 
678                                 db_query($link, "UPDATE ttrss_feeds SET 
679                                         title = '$feed_title' WHERE id = '$feed'");
680                         }
681
682                         // weird, weird Magpie
683                         if (!$use_simplepie) {
684                                 if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
685                         }
686
687                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
688                                 db_query($link, "UPDATE ttrss_feeds SET 
689                                         site_url = '$site_url' WHERE id = '$feed'");
690                         }
691
692 //                      print "I: " . $rss->channel["image"]["url"];
693
694                         if (!$use_simplepie) {
695                                 $icon_url = $rss->image["url"];
696                         } else {
697                                 $icon_url = $rss->get_image_url();
698                         }
699
700                         if ($icon_url && !$orig_icon_url != db_escape_string($icon_url)) {
701                                 $icon_url = db_escape_string($icon_url);
702                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
703                         }
704
705                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
706                                 _debug("update_rss_feed: loading filters...");
707                         }
708
709                         $filters = load_filters($link, $feed, $owner_uid);
710
711                         if ($use_simplepie) {
712                                 $iterator = $rss->get_items();
713                         } else {
714                                 $iterator = $rss->items;
715                                 if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
716                                 if (!$iterator || !is_array($iterator)) $iterator = $rss;
717                         }
718
719                         if (!is_array($iterator)) {
720                                 /* db_query($link, "UPDATE ttrss_feeds 
721                                         SET last_error = 'Parse error: can\'t find any articles.'
722                                         WHERE id = '$feed'"); */
723
724                                 // clear any errors and mark feed as updated if fetched okay
725                                 // even if it's blank
726
727                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
728                                         _debug("update_rss_feed: entry iterator is not an array, no articles?");
729                                 }
730
731                                 db_query($link, "UPDATE ttrss_feeds 
732                                         SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
733
734                                 return; // no articles
735                         }
736
737                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
738                                 _debug("update_rss_feed: processing articles...");
739                         }
740
741                         foreach ($iterator as $item) {
742
743                                 if ($_GET['xdebug']) {
744                                         print_r($item);
745
746                                 }
747
748                                 if ($use_simplepie) {
749                                         $entry_guid = $item->get_id();
750                                         if (!$entry_guid) $entry_guid = $item->get_link();
751                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
752
753                                 } else {
754
755                                         $entry_guid = $item["id"];
756
757                                         if (!$entry_guid) $entry_guid = $item["guid"];
758                                         if (!$entry_guid) $entry_guid = $item["link"];
759                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
760                                 }
761
762                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
763                                         _debug("update_rss_feed: guid $entry_guid");
764                                 }
765
766                                 if (!$entry_guid) continue;
767
768                                 $entry_timestamp = "";
769
770                                 if ($use_simplepie) {
771                                         $entry_timestamp = strtotime($item->get_date());
772                                 } else {
773                                         $rss_2_date = $item['pubdate'];
774                                         $rss_1_date = $item['dc']['date'];
775                                         $atom_date = $item['issued'];
776                                         if (!$atom_date) $atom_date = $item['updated'];
777                         
778                                         if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
779                                         if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
780                                         if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
781                                 }
782
783                                 if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
784                                         $entry_timestamp = time();
785                                         $no_orig_date = 'true';
786                                 } else {
787                                         $no_orig_date = 'false';
788                                 }
789
790                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
791
792                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
793                                         _debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
794                                 }
795
796                                 if ($use_simplepie) {
797                                         $entry_title = $item->get_title();
798                                 } else {
799                                         $entry_title = trim(strip_tags($item["title"]));
800                                 }
801
802                                 if ($use_simplepie) {
803                                         $entry_link = $item->get_link();
804                                 } else {
805                                         // strange Magpie workaround
806                                         $entry_link = $item["link_"];
807                                         if (!$entry_link) $entry_link = $item["link"];
808                                 }
809
810                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
811                                         _debug("update_rss_feed: title $entry_title");
812                                 }
813
814                                 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
815
816                                 $entry_link = strip_tags($entry_link);
817
818                                 if ($use_simplepie) {
819                                         $entry_content = $item->get_content();
820                                         if (!$entry_content) $entry_content = $item->get_description();
821                                 } else {
822                                         $entry_content = $item["content:escaped"];
823
824                                         if (!$entry_content) $entry_content = $item["content:encoded"];
825                                         if (!$entry_content) $entry_content = $item["content"]["encoded"];
826                                         if (!$entry_content) $entry_content = $item["content"];
827
828                                         // Magpie bugs are getting ridiculous
829                                         if (trim($entry_content) == "Array") $entry_content = false;
830
831                                         if (!$entry_content) $entry_content = $item["atom_content"];
832                                         if (!$entry_content) $entry_content = $item["summary"];
833
834                                         if (!$entry_content || 
835                                                 strlen($entry_content) < strlen($item["description"])) {
836                                                         $entry_content = $item["description"];
837                                         };
838
839                                         // WTF
840                                         if (is_array($entry_content)) {
841                                                 $entry_content = $entry_content["encoded"];
842                                                 if (!$entry_content) $entry_content = $entry_content["escaped"];
843                                         } 
844                                 }
845
846                                 if ($_GET["xdebug"]) {
847                                         print "update_rss_feed: content: ";
848                                         print_r(htmlspecialchars($entry_content));
849                                 }
850
851                                 $entry_content_unescaped = $entry_content;
852
853                                 if ($use_simplepie) {
854                                         $entry_comments = strip_tags($item->data["comments"]);
855                                         if ($item->get_author()) {
856                                                 $entry_author_item = $item->get_author();
857                                                 $entry_author = $entry_author_item->get_name();
858                                                 if (!$entry_author) $entry_author = $entry_author_item->get_email();
859
860                                                 $entry_author = db_escape_string($entry_author);
861                                         }
862                                 } else {
863                                         $entry_comments = strip_tags($item["comments"]);
864                                 
865                                         $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
866
867                                         if ($item['author']) {
868         
869                                                 if (is_array($item['author'])) {
870         
871                                                         if (!$entry_author) {
872                                                                 $entry_author = db_escape_string(strip_tags($item['author']['name']));
873                                                         }
874         
875                                                         if (!$entry_author) {
876                                                                 $entry_author = db_escape_string(strip_tags($item['author']['email']));
877                                                         }
878                                                 }
879         
880                                                 if (!$entry_author) {
881                                                         $entry_author = db_escape_string(strip_tags($item['author']));
882                                                 }
883                                         }
884                                 }
885
886                                 if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
887
888                                 $entry_guid = db_escape_string(strip_tags($entry_guid));
889                                 $entry_guid = mb_substr($entry_guid, 0, 250);
890
891                                 $result = db_query($link, "SELECT id FROM       ttrss_entries 
892                                         WHERE guid = '$entry_guid'");
893
894                                 $entry_content = db_escape_string($entry_content);
895
896                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
897
898                                 $entry_title = db_escape_string($entry_title);
899                                 $entry_link = db_escape_string($entry_link);
900                                 $entry_comments = mb_substr(db_escape_string($entry_comments), 0, 250);
901                                 $entry_author = mb_substr($entry_author, 0, 250);
902
903                                 if ($use_simplepie) {
904                                         $num_comments = 0; #FIXME#
905                                 } else {
906                                         $num_comments = db_escape_string($item["slash"]["comments"]);
907                                 }
908
909                                 if (!$num_comments) $num_comments = 0;
910
911                                 // parse <category> entries into tags
912
913                                 if ($use_simplepie) {
914
915                                         $additional_tags = array();
916                                         $additional_tags_src = $item->get_categories();
917                                         
918                                         if (is_array($additional_tags_src)) {
919                                                 foreach ($additional_tags_src as $tobj) {
920                                                         array_push($additional_tags, $tobj->get_term());
921                                                 }
922                                         }
923
924                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
925                                                 _debug("update_rss_feed: category tags:");
926                                                 print_r($additional_tags);
927                                         }
928
929                                 } else {
930
931                                         $t_ctr = $item['category#'];
932
933                                         $additional_tags = false;
934         
935                                         if ($t_ctr == 0) {
936                                                 $additional_tags = false;
937                                         } else if ($t_ctr > 0) {
938                                                 $additional_tags = array($item['category']);
939
940                                                 if ($item['category@term']) {
941                                                         array_push($additional_tags, $item['category@term']);
942                                                 }
943
944                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
945                                                         if ($item["category#$i"]) {
946                                                                 array_push($additional_tags, $item["category#$i"]);
947                                                         }
948
949                                                         if ($item["category#$i@term"]) {
950                                                                 array_push($additional_tags, $item["category#$i@term"]);
951                                                         }
952                                                 }
953                                         }
954         
955                                         // parse <dc:subject> elements
956         
957                                         $t_ctr = $item['dc']['subject#'];
958         
959                                         if ($t_ctr > 0) {
960                                                 $additional_tags = array($item['dc']['subject']);
961
962                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
963                                                         if ($item['dc']["subject#$i"]) {
964                                                                 array_push($additional_tags, $item['dc']["subject#$i"]);
965                                                         }
966                                                 }
967                                         }
968                                 }
969
970                                 // enclosures
971
972                                 $enclosures = array();
973
974                                 if ($use_simplepie) {
975                                         $encs = $item->get_enclosures();
976
977                                         if (is_array($encs)) {
978                                                 foreach ($encs as $e) {
979                                                         $e_item = array(
980                                                                 $e->link, $e->type, $e->length);
981         
982                                                         array_push($enclosures, $e_item);
983                                                 }
984                                         }
985
986                                 } else {
987                                         // <enclosure>
988
989                                         $e_ctr = $item['enclosure#'];
990
991                                         if ($e_ctr > 0) {
992                                                 $e_item = array($item['enclosure@url'],
993                                                         $item['enclosure@type'],
994                                                         $item['enclosure@length']);
995
996                                                 array_push($enclosures, $e_item);
997
998                                                 for ($i = 0; $i <= $e_ctr; $i++ ) {
999
1000                                                         if ($item["enclosure#$i@url"]) {
1001                                                                 $e_item = array($item["enclosure#$i@url"],
1002                                                                         $item["enclosure#$i@type"],
1003                                                                         $item["enclosure#$i@length"]);
1004                                                                 array_push($enclosures, $e_item);
1005                                                         }
1006                                                 }
1007                                         }
1008
1009                                         // <media:content>
1010                                         // can there be many of those? yes -fox
1011
1012                                         $m_ctr = $item['media']['content#'];
1013
1014                                         if ($m_ctr > 0) {
1015                                                 $e_item = array($item['media']['content@url'],
1016                                                         $item['media']['content@medium'],
1017                                                         $item['media']['content@length']);
1018
1019                                                 array_push($enclosures, $e_item);
1020
1021                                                 for ($i = 0; $i <= $m_ctr; $i++ ) {
1022
1023                                                         if ($item["media"]["content#$i@url"]) {
1024                                                                 $e_item = array($item["media"]["content#$i@url"],
1025                                                                         $item["media"]["content#$i@medium"],
1026                                                                         $item["media"]["content#$i@length"]);
1027                                                                 array_push($enclosures, $e_item);
1028                                                         }
1029                                                 }
1030
1031                                         }
1032                                 }
1033
1034                                 # sanitize content
1035                                 
1036                                 $entry_content = sanitize_article_content($entry_content);
1037                                 $entry_title = sanitize_article_content($entry_title);
1038
1039                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1040                                         _debug("update_rss_feed: done collecting data [TITLE:$entry_title]");
1041                                 }
1042
1043                                 db_query($link, "BEGIN");
1044
1045                                 if (db_num_rows($result) == 0) {
1046
1047                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1048                                                 _debug("update_rss_feed: base guid not found");
1049                                         }
1050
1051                                         // base post entry does not exist, create it
1052
1053                                         $result = db_query($link,
1054                                                 "INSERT INTO ttrss_entries 
1055                                                         (title,
1056                                                         guid,
1057                                                         link,
1058                                                         updated,
1059                                                         content,
1060                                                         content_hash,
1061                                                         no_orig_date,
1062                                                         date_entered,
1063                                                         comments,
1064                                                         num_comments,
1065                                                         author)
1066                                                 VALUES
1067                                                         ('$entry_title', 
1068                                                         '$entry_guid', 
1069                                                         '$entry_link',
1070                                                         '$entry_timestamp_fmt', 
1071                                                         '$entry_content', 
1072                                                         '$content_hash',
1073                                                         $no_orig_date, 
1074                                                         NOW(), 
1075                                                         '$entry_comments',
1076                                                         '$num_comments',
1077                                                         '$entry_author')");
1078                                 } else {
1079                                         // we keep encountering the entry in feeds, so we need to
1080                                         // update date_entered column so that we don't get horrible
1081                                         // dupes when the entry gets purged and reinserted again e.g.
1082                                         // in the case of SLOW SLOW OMG SLOW updating feeds
1083
1084                                         $base_entry_id = db_fetch_result($result, 0, "id");
1085
1086                                         db_query($link, "UPDATE ttrss_entries SET date_entered = NOW()
1087                                                 WHERE id = '$base_entry_id'");
1088                                 }
1089
1090                                 // now it should exist, if not - bad luck then
1091
1092                                 $result = db_query($link, "SELECT 
1093                                                 id,content_hash,no_orig_date,title,
1094                                                 ".SUBSTRING_FOR_DATE."(date_entered,1,19) as date_entered,
1095                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
1096                                                 num_comments
1097                                         FROM 
1098                                                 ttrss_entries 
1099                                         WHERE guid = '$entry_guid'");
1100
1101                                 $entry_ref_id = 0;
1102                                 $entry_int_id = 0;
1103
1104                                 if (db_num_rows($result) == 1) {
1105
1106                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1107                                                 _debug("update_rss_feed: base guid found, checking for user record");
1108                                         }
1109
1110                                         // this will be used below in update handler
1111                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
1112                                         $orig_title = db_fetch_result($result, 0, "title");
1113                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
1114                                         $orig_date_entered = strtotime(db_fetch_result($result, 
1115                                                 0, "date_entered"));
1116
1117                                         $ref_id = db_fetch_result($result, 0, "id");
1118                                         $entry_ref_id = $ref_id;
1119
1120                                         // check for user post link to main table
1121
1122                                         // do we allow duplicate posts with same GUID in different feeds?
1123                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
1124                                                 $dupcheck_qpart = "AND feed_id = '$feed'";
1125                                         } else { 
1126                                                 $dupcheck_qpart = "";
1127                                         }
1128
1129 //                                      error_reporting(0);
1130
1131                                         $article_filters = get_article_filters($filters, $entry_title, 
1132                                                         $entry_content, $entry_link, $entry_timestamp);
1133
1134                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1135                                                 _debug("update_rss_feed: article filters: ");
1136                                                 if (count($article_filters) != 0) {
1137                                                         print_r($article_filters);
1138                                                 }
1139                                         }
1140
1141                                         if (find_article_filter($article_filters, "filter")) {
1142                                                 db_query($link, "COMMIT"); // close transaction in progress
1143                                                 continue;
1144                                         }
1145
1146 //                                      error_reporting (DEFAULT_ERROR_LEVEL);
1147
1148                                         $score = calculate_article_score($article_filters);
1149
1150                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1151                                                 _debug("update_rss_feed: initial score: $score");
1152                                         }
1153
1154                                         $result = db_query($link,
1155                                                 "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
1156                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
1157                                                         $dupcheck_qpart");
1158
1159                                         // okay it doesn't exist - create user entry
1160                                         if (db_num_rows($result) == 0) {
1161
1162                                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1163                                                         _debug("update_rss_feed: user record not found, creating...");
1164                                                 }
1165
1166                                                 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
1167                                                         $unread = 'true';
1168                                                         $last_read_qpart = 'NULL';
1169                                                 } else {
1170                                                         $unread = 'false';
1171                                                         $last_read_qpart = 'NOW()';
1172                                                 }                                               
1173
1174                                                 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
1175                                                         $marked = 'true';
1176                                                 } else {
1177                                                         $marked = 'false';
1178                                                 }
1179
1180                                                 if (find_article_filter($article_filters, 'publish')) {
1181                                                         $published = 'true';
1182                                                 } else {
1183                                                         $published = 'false';
1184                                                 }
1185
1186                                                 $result = db_query($link,
1187                                                         "INSERT INTO ttrss_user_entries 
1188                                                                 (ref_id, owner_uid, feed_id, unread, last_read, marked, 
1189                                                                         published, score) 
1190                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
1191                                                                 $last_read_qpart, $marked, $published, '$score')");
1192
1193                                                 $result = db_query($link, 
1194                                                         "SELECT int_id FROM ttrss_user_entries WHERE
1195                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
1196                                                                 feed_id = '$feed' LIMIT 1");
1197
1198                                                 if (db_num_rows($result) == 1) {
1199                                                         $entry_int_id = db_fetch_result($result, 0, "int_id");
1200                                                 }
1201                                         } else {
1202                                                 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
1203                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
1204                                         }
1205
1206                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1207                                                 _debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
1208                                         }
1209
1210                                         $post_needs_update = false;
1211
1212                                         if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE", $owner_uid, false) &&
1213                                                 ($content_hash != $orig_content_hash)) {
1214 //                                              print "<!-- [$entry_title] $content_hash vs $orig_content_hash -->";
1215                                                 $post_needs_update = true;
1216                                         }
1217
1218                                         if (db_escape_string($orig_title) != $entry_title) {
1219                                                 $post_needs_update = true;
1220                                         }
1221
1222                                         if ($orig_num_comments != $num_comments) {
1223                                                 $post_needs_update = true;
1224                                         }
1225
1226 //                                      this doesn't seem to be very reliable
1227 //
1228 //                                      if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
1229 //                                              $post_needs_update = true;
1230 //                                      }
1231
1232                                         // if post needs update, update it and mark all user entries 
1233                                         // linking to this post as updated                                      
1234                                         if ($post_needs_update) {
1235
1236                                                 if (defined('DAEMON_EXTENDED_DEBUG')) {
1237                                                         _debug("update_rss_feed: post $entry_guid needs update...");
1238                                                 }
1239
1240 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
1241
1242                                                 db_query($link, "UPDATE ttrss_entries 
1243                                                         SET title = '$entry_title', content = '$entry_content',
1244                                                                 content_hash = '$content_hash',
1245                                                                 num_comments = '$num_comments'
1246                                                         WHERE id = '$ref_id'");
1247
1248                                                 if (get_pref($link, "MARK_UNREAD_ON_UPDATE", $owner_uid, false)) {
1249                                                         db_query($link, "UPDATE ttrss_user_entries 
1250                                                                 SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
1251                                                 } else {
1252                                                         db_query($link, "UPDATE ttrss_user_entries 
1253                                                                 SET last_read = null WHERE ref_id = '$ref_id' AND unread = false");
1254                                                 }
1255
1256                                         }
1257                                 }
1258
1259                                 db_query($link, "COMMIT");
1260
1261                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1262                                         _debug("update_rss_feed: assigning labels...");
1263                                 }
1264
1265                                 assign_article_to_labels($link, $entry_ref_id, $article_filters,
1266                                         $owner_uid);
1267
1268                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1269                                         _debug("update_rss_feed: looking for enclosures...");
1270                                 }
1271
1272                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1273                                         print_r($enclosures);
1274                                 }
1275
1276                                 db_query($link, "BEGIN");
1277
1278                                 foreach ($enclosures as $enc) {
1279                                         $enc_url = db_escape_string($enc[0]);
1280                                         $enc_type = db_escape_string($enc[1]);
1281                                         $enc_dur = db_escape_string($enc[2]);
1282
1283                                         $result = db_query($link, "SELECT id FROM ttrss_enclosures
1284                                                 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1285
1286                                         if (db_num_rows($result) == 0) {
1287                                                 db_query($link, "INSERT INTO ttrss_enclosures
1288                                                         (content_url, content_type, title, duration, post_id) VALUES
1289                                                         ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
1290                                         }
1291                                 }
1292
1293                                 db_query($link, "COMMIT");
1294
1295                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1296                                         _debug("update_rss_feed: looking for tags...");
1297                                 }
1298
1299                                 /* taaaags */
1300                                 // <a href="..." rel="tag">Xorg</a>, //
1301
1302                                 $entry_tags = null;
1303
1304                                 preg_match_all("/<a.*?rel=['\"]tag['\"].*?>([^<]+)<\/a>/i", 
1305                                         $entry_content_unescaped, $entry_tags);
1306
1307 /*                              print "<p><br/>$entry_title : $entry_content_unescaped<br>";
1308                                 print_r($entry_tags);
1309                                 print "<br/></p>"; */
1310
1311                                 $entry_tags = $entry_tags[1];
1312
1313                                 # check for manual tags
1314
1315                                 $tag_filter = find_article_filter($article_filters, "tag"); 
1316
1317                                 if ($tag_filter) {
1318
1319                                         $manual_tags = trim_array(split(",", $tag_filter[1]));
1320
1321                                         foreach ($manual_tags as $tag) {
1322                                                 if (tag_is_valid($tag)) {
1323                                                         array_push($entry_tags, $tag);
1324                                                 }
1325                                         }
1326                                 }
1327
1328                                 $boring_tags = trim_array(split(",", mb_strtolower(get_pref($link, 
1329                                         'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1330
1331                                 if ($additional_tags && is_array($additional_tags)) {
1332                                         foreach ($additional_tags as $tag) {
1333                                                 if (tag_is_valid($tag) && 
1334                                                                 array_search($tag, $boring_tags) === FALSE) {
1335                                                         array_push($entry_tags, $tag);
1336                                                 }
1337                                         }
1338                                 } 
1339
1340 //                              print "<p>TAGS: "; print_r($entry_tags); print "</p>";
1341
1342                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1343                                         print_r($entry_tags);
1344                                 }
1345
1346                                 if (count($entry_tags) > 0) {
1347                                 
1348                                         db_query($link, "BEGIN");
1349                         
1350                                                 foreach ($entry_tags as $tag) {
1351
1352                                                         $tag = sanitize_tag($tag);
1353                                                         $tag = db_escape_string($tag);
1354
1355                                                         if (!tag_is_valid($tag)) continue;
1356                                                         
1357                                                         $result = db_query($link, "SELECT id FROM ttrss_tags            
1358                                                                 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND 
1359                                                                 owner_uid = '$owner_uid' LIMIT 1");
1360         
1361         //                                              print db_fetch_result($result, 0, "id");
1362         
1363                                                         if ($result && db_num_rows($result) == 0) {
1364                                                                 
1365                                                                 db_query($link, "INSERT INTO ttrss_tags 
1366                                                                         (owner_uid,tag_name,post_int_id)
1367                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
1368                                                         }                                                       
1369                                                 }
1370
1371                                         db_query($link, "COMMIT");
1372                                 } 
1373
1374                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1375                                         _debug("update_rss_feed: article processed");
1376                                 }
1377                         } 
1378
1379                         if (!$last_updated) {
1380                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1381                                         _debug("update_rss_feed: new feed, catching it up...");
1382                                 }
1383                                 catchup_feed($link, $feed, false);
1384                         }
1385
1386                         if (!$hidden) {
1387                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1388                                         _debug("update_rss_feed: updating counters cache...");
1389                                 }
1390
1391                                 // disabled, purge_feed() does that...
1392                                 //ccache_update($link, $feed, $owner_uid);
1393                         }
1394
1395                         purge_feed($link, $feed, 0);
1396
1397                         db_query($link, "UPDATE ttrss_feeds 
1398                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1399
1400 //                      db_query($link, "COMMIT");
1401
1402                 } else {
1403
1404                         if ($use_simplepie) {
1405                                 $error_msg = mb_substr($rss->error(), 0, 250);
1406                         } else {
1407                                 $error_msg = mb_substr(magpie_error(), 0, 250);
1408                         }
1409
1410                         if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1411                                 _debug("update_rss_feed: error fetching feed: $error_msg");
1412                         }
1413
1414                         $error_msg = db_escape_string($error_msg);
1415
1416                         db_query($link, 
1417                                 "UPDATE ttrss_feeds SET last_error = '$error_msg', 
1418                                         last_updated = NOW() WHERE id = '$feed'");
1419                 }
1420
1421                 if ($use_simplepie) {
1422                         unset($rss);
1423                 }
1424
1425                 if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
1426                         _debug("update_rss_feed: done");
1427                 }
1428
1429         }
1430
1431         function print_select($id, $default, $values, $attributes = "") {
1432                 print "<select name=\"$id\" id=\"$id\" $attributes>";
1433                 foreach ($values as $v) {
1434                         if ($v == $default)
1435                                 $sel = " selected";
1436                          else
1437                                 $sel = "";
1438                         
1439                         print "<option$sel>$v</option>";
1440                 }
1441                 print "</select>";
1442         }
1443
1444         function print_select_hash($id, $default, $values, $attributes = "") {
1445                 print "<select name=\"$id\" id='$id' $attributes>";
1446                 foreach (array_keys($values) as $v) {
1447                         if ($v == $default)
1448                                 $sel = 'selected="selected"';
1449                          else
1450                                 $sel = "";
1451                         
1452                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
1453                 }
1454
1455                 print "</select>";
1456         }
1457
1458         function get_article_filters($filters, $title, $content, $link, $timestamp) {
1459                 $matches = array();
1460
1461                 if ($filters["title"]) {
1462                         foreach ($filters["title"] as $filter) {
1463                                 $reg_exp = $filter["reg_exp"];          
1464                                 $inverse = $filter["inverse"];  
1465                                 if ((!$inverse && preg_match("/$reg_exp/i", $title)) || 
1466                                                 ($inverse && !preg_match("/$reg_exp/i", $title))) {
1467
1468                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1469                                 }
1470                         }
1471                 }
1472
1473                 if ($filters["content"]) {
1474                         foreach ($filters["content"] as $filter) {
1475                                 $reg_exp = $filter["reg_exp"];
1476                                 $inverse = $filter["inverse"];
1477
1478                                 if ((!$inverse && preg_match("/$reg_exp/i", $content)) || 
1479                                                 ($inverse && !preg_match("/$reg_exp/i", $content))) {
1480
1481                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1482                                 }               
1483                         }
1484                 }
1485
1486                 if ($filters["both"]) {
1487                         foreach ($filters["both"] as $filter) {                 
1488                                 $reg_exp = $filter["reg_exp"];          
1489                                 $inverse = $filter["inverse"];
1490
1491                                 if ($inverse) {
1492                                         if (!preg_match("/$reg_exp/i", $title) && !preg_match("/$reg_exp/i", $content)) {
1493                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1494                                         }
1495                                 } else {
1496                                         if (preg_match("/$reg_exp/i", $title) || preg_match("/$reg_exp/i", $content)) {
1497                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1498                                         }
1499                                 }
1500                         }
1501                 }
1502
1503                 if ($filters["link"]) {
1504                         $reg_exp = $filter["reg_exp"];
1505                         foreach ($filters["link"] as $filter) {
1506                                 $reg_exp = $filter["reg_exp"];
1507                                 $inverse = $filter["inverse"];
1508
1509                                 if ((!$inverse && preg_match("/$reg_exp/i", $link)) || 
1510                                                 ($inverse && !preg_match("/$reg_exp/i", $link))) {
1511                                                 
1512                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1513                                 }
1514                         }
1515                 }
1516
1517                 if ($filters["date"]) {
1518                         $reg_exp = $filter["reg_exp"];
1519                         foreach ($filters["date"] as $filter) {
1520                                 $date_modifier = $filter["filter_param"];
1521                                 $inverse = $filter["inverse"];
1522                                 $check_timestamp = strtotime($filter["reg_exp"]);
1523
1524                                 # no-op when timestamp doesn't parse to prevent misfires
1525
1526                                 if ($check_timestamp) {
1527                                         $match_ok = false;
1528
1529                                         if ($date_modifier == "before" && $timestamp < $check_timestamp ||
1530                                                 $date_modifier == "after" && $timestamp > $check_timestamp) {
1531                                                         $match_ok = true;
1532                                         }
1533
1534                                         if ($inverse) $match_ok = !$match_ok;
1535
1536                                         if ($match_ok) {
1537                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1538                                         }
1539                                 }
1540                         }
1541                 } 
1542
1543                 return $matches;
1544         }
1545
1546         function find_article_filter($filters, $filter_name) {
1547                 foreach ($filters as $f) {
1548                         if ($f[0] == $filter_name) {
1549                                 return $f;
1550                         };
1551                 }
1552                 return false;
1553         }
1554
1555         function calculate_article_score($filters) {
1556                 $score = 0;
1557
1558                 foreach ($filters as $f) {
1559                         if ($f[0] == "score") {
1560                                 $score += $f[1];
1561                         };
1562                 }
1563                 return $score;
1564         }
1565
1566         function assign_article_to_labels($link, $id, $filters, $owner_uid) {
1567                 foreach ($filters as $f) {
1568                         if ($f[0] == "label") {
1569                                 label_add_article($link, $id, $f[1], $owner_uid);
1570                         };
1571                 }
1572         }
1573
1574         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link,
1575                 $rtl_content = false, $last_updated = false, $last_error = false,
1576                 $fg_content = false, $bg_content = false) {
1577
1578                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
1579                                 $feed_icon = "<img id=\"FIMG-$feed_id\" src=\"$icon_file\">";
1580                 } else {
1581                         $feed_icon = "<img id=\"FIMG-$feed_id\" src=\"images/blank_icon.gif\">";
1582                 }
1583
1584                 if ($rtl_content) {
1585                         $rtl_tag = "dir=\"rtl\"";
1586                 } else {
1587                         $rtl_tag = "dir=\"ltr\"";
1588                 }
1589
1590                 $error_notify_msg = "";
1591                 
1592                 if ($last_error) {
1593                         $link_title = "Error: $last_error ($last_updated)";
1594                         $error_notify_msg = "(Error)";
1595                 } else if ($last_updated) {
1596                         $link_title = "Updated: $last_updated";
1597                 }
1598
1599                 $feed = "<a title=\"$link_title\" id=\"FEEDL-$feed_id\" 
1600                         href=\"javascript:viewfeed('$feed_id', '', false, '', false, 0);\">$feed_title</a>";
1601
1602 /*              if ($feed_id < -10) {
1603                         $bg_color = "#00ccff";
1604                         $fg_color = "white";
1605                 }
1606
1607                 if ($fg_color || $bg_color) {
1608                         $color_str = "<div class='labelColorIndicator'
1609                                 style='color : $fg_color; background-color : $bg_color'>l</div>";
1610                 } 
1611
1612                 print $color_str; */
1613
1614                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
1615                 if (get_pref($link, 'ENABLE_FEED_ICONS')) {
1616                         print "$feed_icon";
1617                 }
1618
1619                 print "<span $rtl_tag id=\"FEEDN-$feed_id\">$feed</span>";
1620
1621                 if ($unread != 0) {
1622                         $fctr_class = "class=\"feedCtrHasUnread\"";
1623                 } else {
1624                         $fctr_class = "class=\"feedCtrNoUnread\"";
1625                 }
1626
1627                 print " <span $rtl_tag $fctr_class id=\"FEEDCTR-$feed_id\">
1628                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
1629
1630                 if (get_pref($link, "EXTENDED_FEEDLIST")) {                      
1631                         $total = getFeedArticles($link, $feed_id);
1632                         print "<div class=\"feedExtInfo\">
1633                                 <span id=\"FLUPD-$feed_id\">$last_updated ($total total) $error_notify_msg</span></div>";
1634                 }
1635
1636                 print "</li>";
1637
1638         }
1639
1640         function getmicrotime() {
1641                 list($usec, $sec) = explode(" ",microtime());
1642                 return ((float)$usec + (float)$sec);
1643         }
1644
1645         function print_radio($id, $default, $true_is, $values, $attributes = "") {
1646                 foreach ($values as $v) {
1647                 
1648                         if ($v == $default)
1649                                 $sel = "checked";
1650                          else
1651                                 $sel = "";
1652
1653                         if ($v == $true_is) {
1654                                 $sel .= " value=\"1\"";
1655                         } else {
1656                                 $sel .= " value=\"0\"";
1657                         }
1658                         
1659                         print "<input class=\"noborder\" 
1660                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
1661
1662                 }
1663         }
1664
1665         function initialize_user_prefs($link, $uid) {
1666
1667                 $uid = db_escape_string($uid);
1668
1669                 db_query($link, "BEGIN");
1670
1671                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
1672                 
1673                 $u_result = db_query($link, "SELECT pref_name 
1674                         FROM ttrss_user_prefs WHERE owner_uid = '$uid'");
1675
1676                 $active_prefs = array();
1677
1678                 while ($line = db_fetch_assoc($u_result)) {
1679                         array_push($active_prefs, $line["pref_name"]);                  
1680                 }
1681
1682                 while ($line = db_fetch_assoc($result)) {
1683                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
1684 //                              print "adding " . $line["pref_name"] . "<br>";
1685
1686                                 db_query($link, "INSERT INTO ttrss_user_prefs
1687                                         (owner_uid,pref_name,value) VALUES 
1688                                         ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
1689
1690                         }
1691                 }
1692
1693                 db_query($link, "COMMIT");
1694
1695         }
1696
1697         function lookup_user_id($link, $user) {
1698
1699                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE 
1700                         login = '$login'");
1701
1702                 if (db_num_rows($result) == 1) {
1703                         return db_fetch_result($result, 0, "id");
1704                 } else {
1705                         return false;
1706                 }
1707         }
1708
1709         function http_authenticate_user($link) {
1710
1711                 error_log("http_authenticate_user: ".$_SERVER["PHP_AUTH_USER"]."\n", 3, '/tmp/tt-rss.log');
1712
1713                 if (!$_SERVER["PHP_AUTH_USER"]) {
1714
1715                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1716                         header('HTTP/1.0 401 Unauthorized');
1717                         exit;
1718                                         
1719                 } else {
1720                         $auth_result = authenticate_user($link, 
1721                                 $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
1722
1723                         if (!$auth_result) {
1724                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1725                                 header('HTTP/1.0 401 Unauthorized');
1726                                 exit;
1727                         }
1728                 }
1729
1730                 return true;
1731         }
1732
1733         function authenticate_user($link, $login, $password, $force_auth = false) {
1734
1735                 if (!SINGLE_USER_MODE) {
1736
1737                         $pwd_hash1 = encrypt_password($password);
1738                         $pwd_hash2 = encrypt_password($password, $login);
1739
1740                         if (defined('ALLOW_REMOTE_USER_AUTH') && ALLOW_REMOTE_USER_AUTH 
1741                                         && $_SERVER["REMOTE_USER"] && $login != "admin") {
1742
1743                                 $login = db_escape_string($_SERVER["REMOTE_USER"]);
1744
1745                                 $query = "SELECT id,login,access_level,pwd_hash
1746                     FROM ttrss_users WHERE
1747                                         login = '$login'";
1748
1749                         } else {
1750                                 $query = "SELECT id,login,access_level,pwd_hash
1751                     FROM ttrss_users WHERE
1752                                         login = '$login' AND (pwd_hash = '$pwd_hash1' OR
1753                                                 pwd_hash = '$pwd_hash2')";
1754                         }
1755
1756                         $result = db_query($link, $query);
1757         
1758                         if (db_num_rows($result) == 1) {
1759                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
1760                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
1761                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
1762         
1763                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " . 
1764                                         $_SESSION["uid"]);
1765         
1766                                 $user_theme = get_user_theme_path($link);
1767         
1768                                 $_SESSION["theme"] = $user_theme;
1769                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1770                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
1771         
1772                                 initialize_user_prefs($link, $_SESSION["uid"]);
1773         
1774                                 return true;
1775                         }
1776         
1777                         return false;
1778
1779                 } else {
1780
1781                         $_SESSION["uid"] = 1;
1782                         $_SESSION["name"] = "admin";
1783
1784                         $user_theme = get_user_theme_path($link);
1785         
1786                         $_SESSION["theme"] = $user_theme;
1787                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1788         
1789                         initialize_user_prefs($link, $_SESSION["uid"]);
1790         
1791                         return true;
1792                 }
1793         }
1794
1795         function make_password($length = 8) {
1796
1797                 $password = "";
1798                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ"; 
1799                 
1800         $i = 0; 
1801     
1802                 while ($i < $length) { 
1803                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
1804         
1805                         if (!strstr($password, $char)) { 
1806                                 $password .= $char;
1807                                 $i++;
1808                         }
1809                 }
1810                 return $password;
1811         }
1812
1813         // this is called after user is created to initialize default feeds, labels
1814         // or whatever else
1815         
1816         // user preferences are checked on every login, not here
1817
1818         function initialize_user($link, $uid) {
1819
1820 /*              db_query($link, "INSERT INTO ttrss_labels2 (owner_uid, caption)
1821                         VALUES ('$uid', 'All Articles')");
1822
1823                 db_query($link, "INSERT INTO ttrss_filters 
1824                         (owner_uid, feed_id, filter_type, reg_exp, enabled, 
1825                                 action_id, action_param, filter_param) 
1826                         VALUES ('$uid', NULL, 1, '.', true, 7, 'All Articles', 'before')"); */
1827
1828                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1829                         values ('$uid', 'Tiny Tiny RSS: New Releases',
1830                         'http://tt-rss.org/releases.rss')");
1831
1832                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1833                         values ('$uid', 'Tiny Tiny RSS: Forum',
1834                         'http://tt-rss.org/forum/rss.php')");
1835         }
1836
1837         function logout_user() {
1838                 session_destroy();
1839                 if (isset($_COOKIE[session_name()])) {
1840                    setcookie(session_name(), '', time()-42000, '/');
1841                 }
1842         }
1843
1844         function get_script_urlpath() {
1845                 return preg_replace('/\/[^\/]*$/', "", $_SERVER["REQUEST_URI"]);
1846         }
1847
1848         function validate_session($link) {
1849                 if (SINGLE_USER_MODE) { 
1850                         return true;
1851                 }
1852
1853                 if (SESSION_CHECK_ADDRESS && $_SESSION["uid"]) {
1854                         if ($_SESSION["ip_address"]) {
1855                                 if ($_SESSION["ip_address"] != $_SERVER["REMOTE_ADDR"]) {
1856                                         $_SESSION["login_error_msg"] = "Session failed to validate (incorrect IP)";
1857                                         return false;
1858                                 }
1859                         }
1860                 }
1861
1862                 if ($_SESSION["uid"]) {
1863
1864                         $result = db_query($link, 
1865                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
1866
1867                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
1868
1869                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
1870                                 return false;
1871                         }
1872                 }
1873
1874 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
1875
1876                         //print_r($_SESSION);
1877
1878                         if (time() > $_SESSION["cookie_lifetime"]) {
1879                                 return false;
1880                         }
1881                 } */
1882
1883                 return true;
1884         }
1885
1886         function login_sequence($link, $mobile = false) {
1887                 if (!SINGLE_USER_MODE) {
1888
1889                         if (defined('_DEBUG_USER_SWITCH') && $_SESSION["uid"]) {
1890                                 $swu = db_escape_string($_REQUEST["swu"]);
1891                                 if ($swu) {
1892                                         $_SESSION["prefs_cache"] = false;
1893                                         return authenticate_user($link, $swu, null, true);
1894                                 }
1895                         }
1896
1897                         $login_action = $_POST["login_action"];
1898
1899                         # try to authenticate user if called from login form                    
1900                         if ($login_action == "do_login") {
1901                                 $login = $_POST["login"];
1902                                 $password = $_POST["password"];
1903                                 $remember_me = $_POST["remember_me"];
1904
1905                                 if (authenticate_user($link, $login, $password)) {
1906                                         $_POST["password"] = "";
1907
1908                                         $_SESSION["language"] = $_POST["language"];
1909                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
1910
1911                                         header("Location: " . $_SERVER["REQUEST_URI"]);
1912                                         exit;
1913
1914                                         return;
1915                                 } else {
1916                                         $_SESSION["login_error_msg"] = "Incorrect username or password";
1917                                 }
1918                         }
1919
1920                         if (!$_SESSION["uid"] || !validate_session($link)) {
1921                                 //render_login_form($link, $mobile);
1922                                 header("Location: login.php");
1923                                 exit;
1924                         } else {
1925                                 /* bump login timestamp */
1926                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " . 
1927                                         $_SESSION["uid"]);
1928
1929                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
1930                                         setcookie("ttrss_lang", $_SESSION["language"], 
1931                                                 time() + SESSION_COOKIE_LIFETIME);
1932                                 }
1933
1934                                 /* bump counters stamp since we're getting reloaded anyway */
1935
1936                                 $_SESSION["get_all_counters_stamp"] = time();
1937                         }
1938
1939                 } else {
1940                         return authenticate_user($link, "admin", null);
1941                 }
1942         }
1943
1944         function truncate_string($str, $max_len) {
1945                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
1946                         return mb_substr($str, 0, $max_len, "utf-8") . "&hellip;";
1947                 } else {
1948                         return $str;
1949                 }
1950         }
1951
1952         function get_user_theme_path($link) {
1953                 $result = db_query($link, "SELECT theme_path 
1954                         FROM 
1955                                 ttrss_themes,ttrss_users
1956                         WHERE ttrss_themes.id = theme_id AND ttrss_users.id = " . $_SESSION["uid"]);
1957                 if (db_num_rows($result) != 0) {
1958                         return db_fetch_result($result, 0, "theme_path");
1959                 } else {
1960                         return null;
1961                 }
1962         }
1963
1964         function smart_date_time($timestamp) {
1965                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
1966                         return date("G:i", $timestamp);
1967                 } else if (date("Y", $timestamp) == date("Y")) {
1968                         return date("M d, G:i", $timestamp);
1969                 } else {
1970                         return date("Y/m/d, G:i", $timestamp);
1971                 }
1972         }
1973
1974         function smart_date($timestamp) {
1975                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
1976                         return "Today";
1977                 } else if (date("Y", $timestamp) == date("Y")) {
1978                         return date("D m", $timestamp);
1979                 } else {
1980                         return date("Y/m/d", $timestamp);
1981                 }
1982         }
1983
1984         function sql_bool_to_string($s) {
1985                 if ($s == "t" || $s == "1") {
1986                         return "true";
1987                 } else {
1988                         return "false";
1989                 }
1990         }
1991
1992         function sql_bool_to_bool($s) {
1993                 if ($s == "t" || $s == "1") {
1994                         return true;
1995                 } else {
1996                         return false;
1997                 }
1998         }
1999         
2000         function bool_to_sql_bool($s) {
2001                 if ($s) {
2002                         return "true";
2003                 } else {
2004                         return "false";
2005                 }
2006         }
2007
2008         function toggleEvenOdd($a) {
2009                 if ($a == "even") 
2010                         return "odd";
2011                 else
2012                         return "even";
2013         }
2014
2015         function sanity_check($link) {
2016
2017                 error_reporting(0);
2018
2019                 $error_code = 0;
2020                 $result = db_query($link, "SELECT schema_version FROM ttrss_version");
2021                 $schema_version = db_fetch_result($result, 0, "schema_version");
2022
2023                 if ($schema_version != SCHEMA_VERSION) {
2024                         $error_code = 5;
2025                 }
2026
2027                 if (DB_TYPE == "mysql") {
2028                         $result = db_query($link, "SELECT true", false);
2029                         if (db_num_rows($result) != 1) {
2030                                 $error_code = 10;
2031                         }
2032                 }
2033
2034                 if (db_escape_string("testTEST") != "testTEST") {
2035                         $error_code = 12;
2036                 }
2037
2038                 error_reporting (DEFAULT_ERROR_LEVEL);
2039
2040                 if ($error_code != 0) {
2041                         print_error_xml($error_code);
2042                         return false;
2043                 } else {
2044                         return true;
2045                 }
2046         }
2047
2048         function file_is_locked($filename) {
2049                 if (function_exists('flock')) {
2050                         error_reporting(0);
2051                         $fp = fopen(LOCK_DIRECTORY . "/$filename", "r");
2052                         error_reporting(DEFAULT_ERROR_LEVEL);
2053                         if ($fp) {
2054                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2055                                         flock($fp, LOCK_UN);
2056                                         fclose($fp);
2057                                         return false;
2058                                 }
2059                                 fclose($fp);
2060                                 return true;
2061                         } else {
2062                                 return false;
2063                         }
2064                 }
2065                 return true; // consider the file always locked and skip the test
2066         }
2067
2068         function make_lockfile($filename) {
2069                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2070
2071                 if (flock($fp, LOCK_EX | LOCK_NB)) {            
2072                         return $fp;
2073                 } else {
2074                         return false;
2075                 }
2076         }
2077
2078         function make_stampfile($filename) {
2079                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2080
2081                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2082                         fwrite($fp, time() . "\n");
2083                         flock($fp, LOCK_UN);
2084                         fclose($fp);
2085                         return true;
2086                 } else {
2087                         return false;
2088                 }
2089         }
2090
2091         function read_stampfile($filename) {
2092
2093                 error_reporting(0);
2094                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "r");
2095                 error_reporting (DEFAULT_ERROR_LEVEL);
2096
2097                 if ($fp) {
2098                         if (flock($fp, LOCK_EX)) {
2099                                 $stamp = fgets($fp);
2100                                 flock($fp, LOCK_UN);
2101                                 fclose($fp);
2102                                 return $stamp;
2103                         } else {
2104                                 return false;
2105                         }
2106                 } else {
2107                         return false;
2108                 }
2109         }
2110
2111         function sql_random_function() {
2112                 if (DB_TYPE == "mysql") {
2113                         return "RAND()";
2114                 } else {
2115                         return "RANDOM()";
2116                 }
2117         }
2118
2119         function catchup_feed($link, $feed, $cat_view) {
2120
2121                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2122                         
2123                                 if ($cat_view) {
2124
2125                                         if ($feed >= 0) {
2126
2127                                                 if ($feed > 0) {
2128                                                         $cat_qpart = "cat_id = '$feed'";
2129                                                 } else {
2130                                                         $cat_qpart = "cat_id IS NULL";
2131                                                 }
2132                                         
2133                                                 $tmp_result = db_query($link, "SELECT id 
2134                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = " . 
2135                                                         $_SESSION["uid"]);
2136
2137                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
2138
2139                                                         $tmp_feed = $tmp_line["id"];
2140
2141                                                         db_query($link, "UPDATE ttrss_user_entries 
2142                                                                 SET unread = false,last_read = NOW() 
2143                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = " . $_SESSION["uid"]);
2144                                                 }
2145                                         } else if ($feed == -2) {
2146
2147
2148                                                 db_query($link, "UPDATE ttrss_user_entries 
2149                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*) 
2150                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0 
2151                                                         AND unread = true AND owner_uid = " . $_SESSION["uid"]);
2152                                         }
2153
2154                                 } else if ($feed > 0) {
2155
2156                                         $tmp_result = db_query($link, "SELECT id 
2157                                                 FROM ttrss_feeds WHERE parent_feed = '$feed'
2158                                                 ORDER BY cat_id,title");
2159
2160                                         $parent_ids = array();
2161
2162                                         if (db_num_rows($tmp_result) > 0) {
2163                                                 while ($p = db_fetch_assoc($tmp_result)) {
2164                                                         array_push($parent_ids, "feed_id = " . $p["id"]);
2165                                                 }
2166
2167                                                 $children_qpart = implode(" OR ", $parent_ids);
2168                                                 
2169                                                 db_query($link, "UPDATE ttrss_user_entries 
2170                                                         SET unread = false,last_read = NOW() 
2171                                                         WHERE (feed_id = '$feed' OR $children_qpart) 
2172                                                         AND owner_uid = " . $_SESSION["uid"]);
2173
2174                                         } else {                                                
2175                                                 db_query($link, "UPDATE ttrss_user_entries 
2176                                                         SET unread = false,last_read = NOW() 
2177                                                         WHERE feed_id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
2178                                         }
2179                                                 
2180                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
2181
2182                                         if ($feed == -1) {
2183                                                 db_query($link, "UPDATE ttrss_user_entries 
2184                                                         SET unread = false,last_read = NOW()
2185                                                         WHERE marked = true AND owner_uid = ".$_SESSION["uid"]);
2186                                         }
2187
2188                                         if ($feed == -2) {
2189                                                 db_query($link, "UPDATE ttrss_user_entries 
2190                                                         SET unread = false,last_read = NOW()
2191                                                         WHERE published = true AND owner_uid = ".$_SESSION["uid"]);
2192                                         }
2193
2194                                         if ($feed == -3) {
2195
2196                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
2197
2198                                                 if (DB_TYPE == "pgsql") {
2199                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' "; 
2200                                                 } else {
2201                                                         $match_part = "updated > DATE_SUB(NOW(), 
2202                                                                 INTERVAL $intl HOUR) ";
2203                                                 }
2204
2205                                                 $result = db_query($link, "SELECT id FROM ttrss_entries, 
2206                                                         ttrss_user_entries WHERE $match_part AND
2207                                                         unread = true AND
2208                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND        
2209                                                         owner_uid = ".$_SESSION["uid"]);
2210
2211                                                 $affected_ids = array();
2212
2213                                                 while ($line = db_fetch_assoc($result)) {
2214                                                         array_push($affected_ids, $line["id"]);
2215                                                 }
2216
2217                                                 catchupArticlesById($link, $affected_ids, 0);
2218                                         }
2219
2220                                         if ($feed == -4) {
2221                                                 db_query($link, "UPDATE ttrss_user_entries 
2222                                                         SET unread = false,last_read = NOW()
2223                                                         WHERE owner_uid = ".$_SESSION["uid"]);
2224                                         }
2225
2226                                 } else if ($feed < -10) { // label
2227
2228                                         $label_id = -$feed - 11;
2229
2230                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2 
2231                                                 SET unread = false WHERE label_id = '$label_id' AND unread = true
2232                                                         AND owner_uid = '".$_SESSION["uid"]."' AND ref_id = article_id");
2233
2234                                 }
2235
2236                                 ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
2237
2238                         } else { // tag
2239                                 db_query($link, "BEGIN");
2240
2241                                 $tag_name = db_escape_string($feed);
2242
2243                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
2244                                         WHERE tag_name = '$tag_name' AND owner_uid = " . $_SESSION["uid"]);
2245
2246                                 while ($line = db_fetch_assoc($result)) {
2247                                         db_query($link, "UPDATE ttrss_user_entries SET
2248                                                 unread = false, last_read = NOW() 
2249                                                 WHERE int_id = " . $line["post_int_id"]);
2250                                 }
2251                                 db_query($link, "COMMIT");
2252                         }
2253         }
2254
2255         function update_generic_feed($link, $feed, $cat_view, $force_update = false) {
2256                         if ($cat_view) {
2257
2258                                 if ($feed > 0) {
2259                                         $cat_qpart = "cat_id = '$feed'";
2260                                 } else {
2261                                         $cat_qpart = "cat_id IS NULL";
2262                                 }
2263                                 
2264                                 $tmp_result = db_query($link, "SELECT id,feed_url FROM ttrss_feeds
2265                                         WHERE $cat_qpart AND owner_uid = " . $_SESSION["uid"]);
2266
2267                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {                                       
2268                                         $feed_url = $tmp_line["feed_url"];
2269                                         $feed_id = $tmp_line["id"];
2270                                         update_rss_feed($link, $feed_url, $feed_id, $force_update);
2271                                 }
2272
2273                         } else {
2274                                 $tmp_result = db_query($link, "SELECT feed_url FROM ttrss_feeds
2275                                         WHERE id = '$feed'");
2276                                 $feed_url = db_fetch_result($tmp_result, 0, "feed_url");                                
2277                                 update_rss_feed($link, $feed_url, $feed, $force_update);
2278                         }
2279         }
2280
2281         function getAllCounters($link, $omode = "flc", $active_feed = false) {
2282
2283                 if (!$omode) $omode = "flc";
2284         
2285                 getGlobalCounters($link);
2286         
2287                 if (strchr($omode, "l")) getLabelCounters($link);
2288                 if (strchr($omode, "f")) getFeedCounters($link, SMART_RPC_COUNTERS, $active_feed);
2289                 if (strchr($omode, "t")) getTagCounters($link);
2290                 if (strchr($omode, "c")) {                      
2291                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
2292                                 getCategoryCounters($link);
2293                         }
2294                 }
2295         }       
2296
2297         function getCategoryCounters($link) {
2298                 # two special categories are -1 and -2 (all virtuals; all labels)
2299
2300 /*              $ctr = getCategoryUnread($link, -1);
2301
2302                 print "<counter type=\"category\" id=\"-1\" counter=\"$ctr\"/>"; */
2303
2304                 $ctr = getCategoryUnread($link, -2); 
2305
2306                 print "<counter type=\"category\" id=\"-2\" counter=\"$ctr\"/>";
2307
2308                 $age_qpart = getMaxAgeSubquery();
2309
2310                 $result = db_query($link, "SELECT id AS cat_id, value AS unread 
2311                         FROM ttrss_feed_categories, ttrss_cat_counters_cache 
2312                         WHERE ttrss_cat_counters_cache.feed_id = id AND 
2313                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
2314
2315                 while ($line = db_fetch_assoc($result)) {
2316                         $line["cat_id"] = sprintf("%d", $line["cat_id"]);
2317
2318                         print "<counter type=\"category\" id=\"".$line["cat_id"]."\" counter=\"".
2319                                 $line["unread"]."\"/>";
2320                 }
2321
2322                 /* Special case: NULL category doesn't actually exist in the DB */
2323
2324                 print "<counter type=\"category\" id=\"0\" counter=\"".
2325                         ccache_find($link, 0, $_SESSION["uid"], true)."\"/>";
2326
2327         }
2328
2329         function getCategoryUnread($link, $cat, $owner_uid = false) {
2330
2331                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2332
2333                 if ($cat >= 0) {
2334
2335                         if ($cat != 0) {
2336                                 $cat_query = "cat_id = '$cat'";
2337                         } else {
2338                                 $cat_query = "cat_id IS NULL";
2339                         }
2340
2341                         $age_qpart = getMaxAgeSubquery();
2342
2343                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query 
2344                                         AND hidden = false
2345                                         AND owner_uid = " . $owner_uid);
2346         
2347                         $cat_feeds = array();
2348                         while ($line = db_fetch_assoc($result)) {
2349                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
2350                         }
2351         
2352                         if (count($cat_feeds) == 0) return 0;
2353         
2354                         $match_part = implode(" OR ", $cat_feeds);
2355         
2356                         $result = db_query($link, "SELECT COUNT(int_id) AS unread 
2357                                 FROM ttrss_user_entries,ttrss_entries 
2358                                 WHERE   unread = true AND ($match_part) AND id = ref_id 
2359                                 AND $age_qpart AND owner_uid = " . $owner_uid);
2360         
2361                         $unread = 0;
2362         
2363                         # this needs to be rewritten
2364                         while ($line = db_fetch_assoc($result)) {
2365                                 $unread += $line["unread"];
2366                         }
2367         
2368                         return $unread;
2369                 } else if ($cat == -1) {
2370                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3);
2371                 } else if ($cat == -2) {
2372
2373                         $result = db_query($link, "
2374                                 SELECT COUNT(unread) AS unread FROM 
2375                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds 
2376                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND 
2377                                         ttrss_labels2.owner_uid = '$owner_uid'
2378                                         AND unread = true AND hidden = false AND feed_id = ttrss_feeds.id
2379                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
2380
2381                         $unread = db_fetch_result($result, 0, "unread");
2382
2383                         return $unread;
2384
2385                 } 
2386         }
2387
2388         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
2389                 if (DB_TYPE == "pgsql") {
2390                         return "ttrss_entries.date_entered > 
2391                                 NOW() - INTERVAL '$days days'";
2392                 } else {
2393                         return "ttrss_entries.date_entered > 
2394                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
2395                 }
2396         }
2397
2398         function getFeedUnread($link, $feed, $is_cat = false) {
2399                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
2400         }
2401
2402         function getLabelUnread($link, $label_id, $owner_uid = false) {
2403                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2404
2405                 $result = db_query($link, "
2406                         SELECT COUNT(unread) AS unread FROM 
2407                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds 
2408                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND 
2409                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
2410                                 AND unread = true AND hidden = false AND feed_id = ttrss_feeds.id
2411                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
2412
2413                 if (db_num_rows($result) != 0) {
2414                         return db_fetch_result($result, 0, "unread");
2415                 } else {
2416                         return 0;
2417                 }
2418         }
2419
2420         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
2421                 $owner_uid = false) {
2422
2423                 $n_feed = sprintf("%d", $feed);
2424
2425                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2426
2427                 if ($unread_only) {
2428                         $unread_qpart = "unread = true";
2429                 } else {
2430                         $unread_qpart = "true";
2431                 }
2432
2433                 $age_qpart = getMaxAgeSubquery();
2434
2435                 if ($is_cat) {
2436                         return getCategoryUnread($link, $n_feed, $owner_uid);           
2437                 } else if ($n_feed == -1) {
2438                         $match_part = "marked = true";
2439                 } else if ($n_feed == -2) {
2440                         $match_part = "published = true";
2441                 } else if ($n_feed == -3) {
2442                         $match_part = "unread = true";
2443
2444                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2445
2446                         if (DB_TYPE == "pgsql") {
2447                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' "; 
2448                         } else {
2449                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2450                         }
2451                 } else if ($n_feed == -4) {
2452                         $match_part = "true";
2453                 } else if ($n_feed > 0) {
2454
2455                         $result = db_query($link, "SELECT id FROM ttrss_feeds 
2456                                         WHERE parent_feed = '$n_feed'
2457                                         AND hidden = false
2458                                         AND owner_uid = " . $owner_uid);
2459
2460                         if (db_num_rows($result) > 0) {
2461
2462                                 $linked_feeds = array();
2463                                 while ($line = db_fetch_assoc($result)) {
2464                                         array_push($linked_feeds, "feed_id = " . $line["id"]);
2465                                 }
2466
2467                                 array_push($linked_feeds, "feed_id = $n_feed");
2468                                 
2469                                 $match_part = implode(" OR ", $linked_feeds);
2470
2471                                 $result = db_query($link, "SELECT COUNT(int_id) AS unread 
2472                                         FROM ttrss_user_entries,ttrss_entries
2473                                         WHERE   $unread_qpart AND
2474                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2475                                         $age_qpart AND
2476                                         ($match_part) AND
2477                                         owner_uid = " . $owner_uid);
2478
2479                                 $unread = 0;
2480
2481                                 # this needs to be rewritten
2482                                 while ($line = db_fetch_assoc($result)) {
2483                                         $unread += $line["unread"];
2484                                 }
2485
2486                                 return $unread;
2487
2488                         } else {
2489                                 $match_part = "feed_id = '$n_feed'";
2490                         }
2491                 } else if ($feed < -10) {
2492
2493                         $label_id = -$feed - 11;
2494
2495                         return getLabelUnread($link, $label_id, $owner_uid);
2496
2497                 }
2498
2499                 if ($match_part) {
2500                 
2501                         $result = db_query($link, "SELECT count(int_id) AS unread 
2502                                 FROM ttrss_user_entries,ttrss_feeds,ttrss_entries WHERE
2503                                 ttrss_user_entries.feed_id = ttrss_feeds.id AND
2504                                 ttrss_user_entries.ref_id = ttrss_entries.id AND 
2505                                 ttrss_feeds.hidden = false AND
2506                                 $age_qpart AND
2507                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = " . $owner_uid);
2508                                 
2509                 } else {
2510                 
2511                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
2512                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries 
2513                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id 
2514                                 AND $unread_qpart AND $age_qpart AND
2515                                         ttrss_tags.owner_uid = " . $owner_uid);
2516                 }
2517                 
2518                 $unread = db_fetch_result($result, 0, "unread");
2519
2520                 return $unread;
2521         }
2522
2523         function getGlobalUnread($link, $user_id = false) {
2524
2525                 if (!$user_id) {
2526                         $user_id = $_SESSION["uid"];
2527                 }
2528
2529                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
2530                         WHERE owner_uid = '$user_id' AND feed_id > 0");
2531
2532                 $c_id = db_fetch_result($result, 0, "c_id"); 
2533
2534                 return $c_id;
2535         }
2536
2537         function getGlobalCounters($link, $global_unread = -1) {
2538                 if ($global_unread == -1) {     
2539                         $global_unread = getGlobalUnread($link);
2540                 }
2541                 print "<counter type=\"global\" id='global-unread' 
2542                         counter='$global_unread'/>";
2543
2544                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM 
2545                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2546
2547                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
2548
2549                 print "<counter type=\"global\" id='subscribed-feeds' 
2550                         counter='$subscribed_feeds'/>";
2551
2552         }
2553
2554         function getTagCounters($link, $smart_mode = SMART_RPC_COUNTERS) {
2555
2556                 if ($smart_mode) {
2557                         if (!$_SESSION["tctr_last_value"]) {
2558                                 $_SESSION["tctr_last_value"] = array();
2559                         }
2560                 }
2561
2562                 $old_counters = $_SESSION["tctr_last_value"];
2563
2564                 $tctrs_modified = false;
2565
2566                 $age_qpart = getMaxAgeSubquery();
2567
2568                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id) 
2569                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id 
2570                                 AND ref_id = id AND $age_qpart
2571                                 AND unread = true)) AS count FROM ttrss_tags 
2572                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name 
2573                                 ORDER BY count DESC LIMIT 55");
2574                         
2575                 $tags = array();
2576
2577                 while ($line = db_fetch_assoc($result)) {
2578                         $tags[$line["tag_name"]] += $line["count"];
2579                 }
2580
2581                 foreach (array_keys($tags) as $tag) {
2582                         $unread = $tags[$tag];                  
2583
2584                         $tag = htmlspecialchars($tag);
2585
2586                         if (!$smart_mode || $old_counters[$tag] != $unread) {                   
2587                                 $old_counters[$tag] = $unread;
2588                                 $tctrs_modified = true;
2589                                 print "<counter type=\"tag\" id=\"$tag\" counter=\"$unread\"/>";
2590                         }
2591
2592                 } 
2593
2594                 if ($smart_mode && $tctrs_modified) {
2595                         $_SESSION["tctr_last_value"] = $old_counters;
2596                 }
2597
2598         }
2599
2600         function getLabelCounters($link, $smart_mode = SMART_RPC_COUNTERS, $ret_mode = false) {
2601
2602                 $age_qpart = getMaxAgeSubquery();
2603
2604                 if ($smart_mode) {
2605                         if (!$_SESSION["lctr_last_value"]) {
2606                                 $_SESSION["lctr_last_value"] = array();
2607                         }
2608                 }
2609
2610                 $ret_arr = array();
2611
2612                 for ($i = -1; $i >= -4; $i--) {
2613
2614                         $count = getFeedUnread($link, $i);
2615         
2616                         if (!$ret_mode) {
2617         
2618                                 if (get_pref($link, 'EXTENDED_FEEDLIST')) {
2619                                         $xmsg_part = "xmsg=\"(" . getFeedArticles($link, $i) . " total)\"";
2620                                 } else {
2621                                         $xmsg_part = "";
2622                                 }
2623
2624                                 print "<counter type=\"label\" id=\"$i\" counter=\"$count\" $xmsg_part/>";
2625                         } else {
2626                                 $ret_arr[$i]["counter"] = $count;
2627                                 $ret_arr[$i]["description"] = getFeedTitle($link, $i);
2628                         }
2629         
2630                 }
2631
2632                 $old_counters = $_SESSION["lctr_last_value"];
2633                 $lctrs_modified = false;
2634
2635
2636                         $owner_uid = $_SESSION["uid"];
2637
2638                         $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
2639                                 WHERE owner_uid = '$owner_uid'");
2640                 
2641                         while ($line = db_fetch_assoc($result)) {
2642         
2643                                 $id = -$line["id"] - 11;
2644         
2645                                 $label_name = $line["caption"];
2646                                 $count = getFeedUnread($link, $id);
2647                 
2648                                 if (!$smart_mode || $old_counters[$id] != $count) {     
2649                                         $old_counters[$id] = $count;
2650                                         $lctrs_modified = true;
2651                                         if (!$ret_mode) {
2652         
2653                                                 if (get_pref($link, 'EXTENDED_FEEDLIST')) {
2654                                                         $xmsg_part = "xmsg=\"(" . getFeedArticles($link, $id) . " total)\"";
2655                                                 } else {
2656                                                         $xmsg_part = "";
2657                                                 }
2658         
2659                                                 print "<counter type=\"label\" id=\"$id\" counter=\"$count\" $xmsg_part/>";
2660                                         } else {
2661                                                 $ret_arr[$id]["counter"] = $count;
2662                                                 $ret_arr[$id]["description"] = $label_name;
2663                                         }
2664                                 }
2665         
2666                                 error_reporting (DEFAULT_ERROR_LEVEL);
2667                         }
2668
2669                 if ($smart_mode && $lctrs_modified) {
2670                         $_SESSION["lctr_last_value"] = $old_counters;
2671                 }
2672
2673                 return $ret_arr;
2674         }
2675
2676         function getFeedCounters($link, $smart_mode = SMART_RPC_COUNTERS, $active_feed = false) {
2677
2678                 $age_qpart = getMaxAgeSubquery();
2679
2680                 if ($smart_mode) {
2681                         if (!$_SESSION["fctr_last_value"]) {
2682                                 $_SESSION["fctr_last_value"] = array();
2683                         }
2684                 }
2685
2686                 $old_counters = $_SESSION["fctr_last_value"];
2687
2688                 $query = "SELECT ttrss_feeds.id,
2689                                 ttrss_feeds.title,
2690                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated, 
2691                                 last_error, value AS count
2692                         FROM ttrss_feeds, ttrss_counters_cache
2693                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."  
2694                                 AND parent_feed IS NULL 
2695                                 AND ttrss_counters_cache.feed_id = id";
2696
2697                 $result = db_query($link, $query);
2698                 $fctrs_modified = false;
2699
2700                 $short_date = get_pref($link, 'SHORT_DATE_FORMAT');
2701
2702                 while ($line = db_fetch_assoc($result)) {
2703                 
2704                         $id = $line["id"];
2705                         $count = $line["count"];
2706                         $last_error = htmlspecialchars($line["last_error"]);
2707
2708                         if (get_pref($link, 'HEADLINES_SMART_DATE')) {
2709                                 $last_updated = smart_date_time(strtotime($line["last_updated"]));
2710                         } else {
2711                                 $last_updated = date($short_date, strtotime($line["last_updated"]));
2712                         }                               
2713
2714                         $last_updated = htmlspecialchars($last_updated);
2715
2716                         $has_img = feed_has_icon($id);
2717
2718                         $tmp_result = db_query($link,
2719                                 "SELECT SUM(value) AS unread FROM ttrss_feeds, ttrss_counters_cache 
2720                                         WHERE parent_feed = '$id' AND feed_id = id");
2721
2722                         $count += db_fetch_result($tmp_result, 0, "unread");
2723
2724                         if (!$smart_mode || $old_counters[$id] != $count) {
2725                                 $old_counters[$id] = $count;
2726                                 $fctrs_modified = true;
2727
2728                                 if ($last_error) {
2729                                         $error_part = "error=\"$last_error\"";
2730                                 } else {
2731                                         $error_part = "";
2732                                 }
2733
2734                                 if ($has_img) {
2735                                         $has_img_part = "hi=\"$has_img\"";
2736                                 } else {
2737                                         $has_img_part = "";
2738                                 }                               
2739
2740                                 if ($active_feed && $id == $active_feed) {
2741                                         $has_title_part = "title=\"" . htmlspecialchars($line["title"]) . "\"";
2742                                 } else {
2743                                         $has_title_part = "";
2744                                 }
2745
2746                                 if (get_pref($link, 'EXTENDED_FEEDLIST')) {
2747                                         $xmsg_part = "xmsg=\"(" . getFeedArticles($link, $id) . " total)\"";
2748                                 }
2749
2750                                 print "<counter type=\"feed\" id=\"$id\" counter=\"$count\" $has_img_part $error_part updated=\"$last_updated\" $xmsg_part $has_title_part/>";
2751                         }
2752                 }
2753
2754                 if ($smart_mode && $fctrs_modified) {
2755                         $_SESSION["fctr_last_value"] = $old_counters;
2756                 }
2757         }
2758
2759         function get_script_dt_add() {
2760 /*              if (strpos(VERSION, ".99") === false) {
2761                         return VERSION;
2762                 } else {
2763                         return time();
2764                 } */
2765                 return time();
2766         }
2767
2768         function get_pgsql_version($link) {
2769                 $result = db_query($link, "SELECT version() AS version");
2770                 $version = split(" ", db_fetch_result($result, 0, "version"));
2771                 return $version[1];
2772         }
2773
2774         function print_error_xml($code, $add_msg = "") {
2775                 global $ERRORS;
2776
2777                 $error_msg = $ERRORS[$code];
2778                 
2779                 if ($add_msg) {
2780                         $error_msg = "$error_msg; $add_msg";
2781                 }
2782                 
2783                 print "<rpc-reply>";
2784                 print "<error error-code=\"$code\" error-msg=\"$error_msg\"/>";
2785                 print "</rpc-reply>";
2786         }
2787
2788         function subscribe_to_feed($link, $feed_link, $cat_id = 0, 
2789                         $auth_login = '', $auth_pass = '') {
2790
2791                 # check for feed:http://url
2792                 $feed_link = trim(preg_replace("/^feed:/", "", $feed_link));
2793
2794                 # check for feed://URL
2795                 if (strpos($feed_link, "//") === 0) {
2796                         $feed_link = "http:$feed_link";
2797                 }
2798
2799                 if ($feed_link == "") return;
2800
2801                 if ($cat_id == "0" || !$cat_id) {
2802                         $cat_qpart = "NULL";
2803                 } else {
2804                         $cat_qpart = "'$cat_id'";
2805                 }
2806         
2807                 $result = db_query($link,
2808                         "SELECT id FROM ttrss_feeds 
2809                         WHERE feed_url = '$feed_link' AND owner_uid = ".$_SESSION["uid"]);
2810         
2811                 if (db_num_rows($result) == 0) {
2812                         
2813                         $result = db_query($link,
2814                                 "INSERT INTO ttrss_feeds 
2815                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass) 
2816                                 VALUES ('".$_SESSION["uid"]."', '$feed_link', 
2817                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass')");
2818         
2819                         $result = db_query($link,
2820                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$feed_link' 
2821                                         AND owner_uid = " . $_SESSION["uid"]);
2822         
2823                         $feed_id = db_fetch_result($result, 0, "id");
2824         
2825                         if ($feed_id) {
2826                                 update_rss_feed($link, $feed_link, $feed_id, true);
2827                         }
2828
2829                         return true;
2830                 } else {
2831                         return false;
2832                 }
2833         }
2834
2835         function print_feed_select($link, $id, $default_id = "", 
2836                 $attributes = "", $include_all_feeds = true) {
2837
2838                 print "<select id=\"$id\" name=\"$id\" $attributes>";
2839                 if ($include_all_feeds) { 
2840                         print "<option value=\"0\">".__('All feeds')."</option>";
2841                 }
2842         
2843                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
2844                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
2845
2846                 if (db_num_rows($result) > 0 && $include_all_feeds) {
2847                         print "<option disabled>--------</option>";
2848                 }
2849
2850                 while ($line = db_fetch_assoc($result)) {
2851                         if ($line["id"] == $default_id) {
2852                                 $is_selected = "selected";
2853                         } else {
2854                                 $is_selected = "";
2855                         }
2856                         printf("<option $is_selected value='%d'>%s</option>", 
2857                                 $line["id"], htmlspecialchars($line["title"]));
2858                 }
2859         
2860                 print "</select>";
2861         }
2862
2863         function print_feed_cat_select($link, $id, $default_id = "", 
2864                 $attributes = "", $include_all_cats = true) {
2865                 
2866                 print "<select id=\"$id\" name=\"$id\" $attributes>";
2867
2868                 if ($include_all_cats) {
2869                         print "<option value=\"0\">".__('Uncategorized')."</option>";
2870                 }
2871
2872                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
2873                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
2874
2875                 if (db_num_rows($result) > 0 && $include_all_cats) {
2876                         print "<option disabled>--------</option>";
2877                 }
2878
2879                 while ($line = db_fetch_assoc($result)) {
2880                         if ($line["id"] == $default_id) {
2881                                 $is_selected = "selected";
2882                         } else {
2883                                 $is_selected = "";
2884                         }
2885                         printf("<option $is_selected value='%d'>%s</option>", 
2886                                 $line["id"], htmlspecialchars($line["title"]));
2887                 }
2888
2889                 print "</select>";
2890         }
2891         
2892         function checkbox_to_sql_bool($val) {
2893                 return ($val == "on") ? "true" : "false";
2894         }
2895
2896         function getFeedCatTitle($link, $id) {
2897                 if ($id == -1) {
2898                         return __("Special");
2899                 } else if ($id < -10) {
2900                         return __("Labels");
2901                 } else if ($id > 0) {
2902                         $result = db_query($link, "SELECT ttrss_feed_categories.title 
2903                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
2904                                         cat_id = ttrss_feed_categories.id");
2905                         if (db_num_rows($result) == 1) {
2906                                 return db_fetch_result($result, 0, "title");
2907                         } else {
2908                                 return __("Uncategorized");
2909                         }
2910                 } else {
2911                         return "getFeedCatTitle($id) failed";
2912                 }
2913
2914         }
2915
2916         function getFeedTitle($link, $id) {
2917                 if ($id == -1) {
2918                         return __("Starred articles");
2919                 } else if ($id == -2) {
2920                         return __("Published articles");
2921                 } else if ($id == -3) {
2922                         return __("Fresh articles");
2923                 } else if ($id == -4) {
2924                         return __("All articles");
2925                 } else if ($id < -10) {
2926                         $label_id = -$id - 11;
2927                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
2928                         if (db_num_rows($result) == 1) {
2929                                 return db_fetch_result($result, 0, "caption");
2930                         } else {
2931                                 return "Unknown label ($label_id)";
2932                         }
2933
2934                 } else if ($id > 0) {
2935                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
2936                         if (db_num_rows($result) == 1) {
2937                                 return db_fetch_result($result, 0, "title");
2938                         } else {
2939                                 return "Unknown feed ($id)";
2940                         }
2941                 } else {
2942                         return "getFeedTitle($id) failed";
2943                 }
2944
2945         }
2946
2947         function get_session_cookie_name() {
2948                 return ((!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME);
2949         }
2950
2951         function print_init_params($link) {
2952                 print "<init-params>";
2953                 if ($_SESSION["stored-params"]) {
2954                         foreach (array_keys($_SESSION["stored-params"]) as $key) {
2955                                 if ($key) {
2956                                         $value = htmlspecialchars($_SESSION["stored-params"][$key]);
2957                                         print "<param key=\"$key\" value=\"$value\"/>";
2958                                 }
2959                         }
2960                 }
2961
2962                 print "<param key=\"theme\" value=\"".$_SESSION["theme"]."\"/>";
2963                 print "<param key=\"daemon_enabled\" value=\"" . ENABLE_UPDATE_DAEMON . "\"/>";
2964                 print "<param key=\"feeds_frame_refresh\" value=\"" . FEEDS_FRAME_REFRESH . "\"/>";
2965                 print "<param key=\"daemon_refresh_only\" value=\"true\"/>";
2966
2967                 print "<param key=\"on_catchup_show_next_feed\" value=\"" . 
2968                         get_pref($link, "ON_CATCHUP_SHOW_NEXT_FEED") . "\"/>";
2969
2970                 print "<param key=\"hide_read_feeds\" value=\"" . 
2971                         (int) get_pref($link, "HIDE_READ_FEEDS") . "\"/>";
2972
2973                 print "<param key=\"enable_feed_cats\" value=\"" . 
2974                         (int) get_pref($link, "ENABLE_FEED_CATS") . "\"/>";
2975
2976                 print "<param key=\"feeds_sort_by_unread\" value=\"" . 
2977                         (int) get_pref($link, "FEEDS_SORT_BY_UNREAD") . "\"/>";
2978
2979                 print "<param key=\"confirm_feed_catchup\" value=\"" . 
2980                         (int) get_pref($link, "CONFIRM_FEED_CATCHUP") . "\"/>";
2981
2982                 print "<param key=\"cdm_auto_catchup\" value=\"" . 
2983                         (int) get_pref($link, "CDM_AUTO_CATCHUP") . "\"/>";
2984
2985                 print "<param key=\"icons_url\" value=\"" . ICONS_URL . "\"/>";
2986
2987                 print "<param key=\"cookie_lifetime\" value=\"" . SESSION_COOKIE_LIFETIME . "\"/>";
2988
2989                 print "<param key=\"default_view_mode\" value=\"" . 
2990                         get_pref($link, "_DEFAULT_VIEW_MODE") . "\"/>";
2991
2992                 print "<param key=\"default_view_limit\" value=\"" . 
2993                         (int) get_pref($link, "_DEFAULT_VIEW_LIMIT") . "\"/>";
2994
2995                 print "<param key=\"default_view_order_by\" value=\"" . 
2996                         get_pref($link, "_DEFAULT_VIEW_ORDER_BY") . "\"/>";
2997
2998                 print "<param key=\"prefs_active_tab\" value=\"" . 
2999                         get_pref($link, "_PREFS_ACTIVE_TAB") . "\"/>";
3000
3001                 print "<param key=\"infobox_disable_overlay\" value=\"" . 
3002                         get_pref($link, "_INFOBOX_DISABLE_OVERLAY") . "\"/>";
3003
3004                 print "<param key=\"icons_location\" value=\"" . 
3005                         ICONS_URL . "\"/>";
3006
3007                 print "<param key=\"hide_read_shows_special\" value=\"" . 
3008                         (int) get_pref($link, "HIDE_READ_SHOWS_SPECIAL") . "\"/>";
3009
3010                 print "<param key=\"hide_feedlist\" value=\"" .
3011                         (int) get_pref($link, "HIDE_FEEDLIST") . "\"/>";
3012
3013                 print "<param key=\"bw_limit\" value=\"".
3014                         (int) $_SESSION["bw_limit"]."\"/>";
3015
3016 //              print "<param key=\"sync_counters\" value=\"" . 
3017 //                      (int) get_pref($link, "SYNC_COUNTERS") . "\"/>";
3018
3019                 print "<param key=\"sync_counters\" value=\"1\"/>";
3020
3021                 print "<param key=\"offline_enabled\" value=\"".
3022                         (int) get_pref($link, "ENABLE_OFFLINE_READING") . "\"/>";
3023
3024                 $result = db_query($link, "SELECT COUNT(*) AS cf FROM
3025                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3026
3027                 $num_feeds = db_fetch_result($result, 0, "cf");
3028
3029                 print "<param key=\"num_feeds\" value=\"".
3030                         (int)$num_feeds. "\"/>";
3031
3032                 print "</init-params>";
3033         }
3034
3035         function print_runtime_info($link) {
3036                 print "<runtime-info>";
3037
3038                 $result = db_query($link, "SELECT COUNT(*) AS cf FROM
3039                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3040
3041                 $num_feeds = db_fetch_result($result, 0, "cf");
3042
3043                 print "<param key=\"num_feeds\" value=\"".
3044                         (int)$num_feeds. "\"/>";
3045
3046                 if (ENABLE_UPDATE_DAEMON) {
3047                         print "<param key=\"daemon_is_running\" value=\"".
3048                                 sprintf("%d", file_is_locked("update_daemon.lock")) . "\"/>";
3049
3050                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
3051
3052                                 $stamp = (int)read_stampfile("update_daemon.stamp");
3053
3054 //                              print "<param key=\"daemon_stamp_delta\" value=\"$stamp_delta\"/>";
3055
3056                                 if ($stamp) {
3057                                         $stamp_delta = time() - $stamp;
3058
3059                                         if ($stamp_delta > 1800) {
3060                                                 $stamp_check = 0;
3061                                         } else {
3062                                                 $stamp_check = 1;
3063                                                 $_SESSION["daemon_stamp_check"] = time();
3064                                         }
3065
3066                                         print "<param key=\"daemon_stamp_ok\" value=\"$stamp_check\"/>";
3067
3068                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
3069
3070                                         print "<param key=\"daemon_stamp\" value=\"$stamp_fmt\"/>";
3071                                 }
3072                         }
3073                 }
3074
3075                 if (CHECK_FOR_NEW_VERSION && $_SESSION["access_level"] >= 10) {
3076                         
3077                         if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
3078                                 $new_version_details = check_for_update($link);
3079
3080                                 print "<param key=\"new_version_available\" value=\"".
3081                                         sprintf("%d", $new_version_details != ""). "\"/>";
3082
3083                                 $_SESSION["last_version_check"] = time();
3084                         }
3085                 }
3086
3087 //              print "<param key=\"new_version_available\" value=\"1\"/>";
3088
3089                 print "</runtime-info>";
3090         }
3091
3092         function getSearchSql($search, $match_on) {
3093
3094                 $search_query_part = "";
3095
3096                 $keywords = split(" ", $search);
3097                 $query_keywords = array();
3098
3099                 if ($match_on == "both") {
3100
3101                         foreach ($keywords as $k) {
3102                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) LIKE UPPER('%$k%')
3103                                         OR UPPER(ttrss_entries.content) LIKE UPPER('%$k%'))");
3104                         }
3105
3106                         $search_query_part = implode("AND", $query_keywords) . " AND ";
3107
3108                 } else if ($match_on == "title") {
3109
3110                         foreach ($keywords as $k) {
3111                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) LIKE UPPER('%$k%'))");
3112                         }
3113
3114                         $search_query_part = implode("AND", $query_keywords) . " AND ";
3115
3116                 } else if ($match_on == "content") {
3117
3118                         foreach ($keywords as $k) {
3119                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) LIKE UPPER('%$k%'))");
3120                         }
3121                 }
3122
3123                 $search_query_part = implode("AND", $query_keywords);
3124
3125                 return $search_query_part;
3126         }
3127
3128         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0) {
3129
3130                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3131
3132                         if ($search) {
3133                         
3134                                 $search_query_part = getSearchSql($search, $match_on);
3135                                 $search_query_part .= " AND ";
3136
3137                         } else {
3138                                 $search_query_part = "";
3139                         }
3140
3141                         $view_query_part = "";
3142         
3143                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
3144                                 if ($search) {
3145                                         $view_query_part = " ";
3146                                 } else if ($feed != -1) {
3147                                         $unread = getFeedUnread($link, $feed, $cat_view);
3148                                         if ($unread > 0) {
3149                                                 $view_query_part = " unread = true AND ";
3150                                         }
3151                                 }
3152                         }
3153         
3154                         if ($view_mode == "marked") {
3155                                 $view_query_part = " marked = true AND ";
3156                         }
3157         
3158                         if ($view_mode == "unread") {
3159                                 $view_query_part = " unread = true AND ";
3160                         }
3161
3162                         if ($view_mode == "updated") {
3163                                 $view_query_part = " (last_read is null and unread = false) AND ";
3164                         }
3165
3166                         if ($limit > 0) {
3167                                 $limit_query_part = "LIMIT " . $limit;
3168                         } 
3169
3170                         $vfeed_query_part = "";
3171         
3172                         // override query strategy and enable feed display when searching globally
3173                         if ($search && $search_mode == "all_feeds") {
3174                                 $query_strategy_part = "ttrss_entries.id > 0";
3175                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";         
3176                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
3177                                 $query_strategy_part = "ttrss_entries.id > 0";
3178                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
3179                                         id = feed_id) as feed_title,";
3180                         } else if ($feed >= 0 && $search && $search_mode == "this_cat") {
3181         
3182                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";         
3183
3184                                 $tmp_result = false;
3185
3186                                 if ($cat_view) {
3187                                         $tmp_result = db_query($link, "SELECT id 
3188                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
3189                                 } else {
3190                                         $tmp_result = db_query($link, "SELECT id
3191                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds 
3192                                                         WHERE id = '$feed') AND id != '$feed'");
3193                                 }
3194         
3195                                 $cat_siblings = array();
3196         
3197                                 if (db_num_rows($tmp_result) > 0) {
3198                                         while ($p = db_fetch_assoc($tmp_result)) {
3199                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
3200                                         }
3201         
3202                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)", 
3203                                                 $feed, implode(" OR ", $cat_siblings));
3204         
3205                                 } else {
3206                                         $query_strategy_part = "ttrss_entries.id > 0";
3207                                 }
3208                                 
3209                         } else if ($feed >= 0) {
3210         
3211                                 if ($cat_view) {
3212
3213                                         if ($feed > 0) {
3214                                                 $query_strategy_part = "cat_id = '$feed'";
3215                                         } else {
3216                                                 $query_strategy_part = "cat_id IS NULL";
3217                                         }
3218         
3219                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3220
3221                                 } else {                
3222                                         $tmp_result = db_query($link, "SELECT id 
3223                                                 FROM ttrss_feeds WHERE parent_feed = '$feed'
3224                                                 ORDER BY cat_id,title");
3225                 
3226                                         $parent_ids = array();
3227                 
3228                                         if (db_num_rows($tmp_result) > 0) {
3229                                                 while ($p = db_fetch_assoc($tmp_result)) {
3230                                                         array_push($parent_ids, "feed_id = " . $p["id"]);
3231                                                 }
3232                 
3233                                                 $query_strategy_part = sprintf("(feed_id = %d OR %s)", 
3234                                                         $feed, implode(" OR ", $parent_ids));
3235                 
3236                                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3237                                         } else {
3238                                                 $query_strategy_part = "feed_id = '$feed'";
3239                                         }
3240                                 }
3241                         } else if ($feed == -1) { // starred virtual feed
3242                                 $query_strategy_part = "marked = true";
3243                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3244                         } else if ($feed == -2) { // published virtual feed OR labels category
3245
3246                                 if (!$cat_view) {
3247                                         $query_strategy_part = "published = true";
3248                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3249                                 } else {
3250                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3251
3252                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3253         
3254                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
3255                                                 ttrss_user_labels2.article_id = ref_id";
3256
3257                                 }
3258
3259                         } else if ($feed == -3) { // fresh virtual feed
3260                                 $query_strategy_part = "unread = true";
3261
3262                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
3263
3264                                 if (DB_TYPE == "pgsql") {
3265                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' "; 
3266                                 } else {
3267                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
3268                                 }
3269
3270                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3271                         } else if ($feed == -4) { // all articles virtual feed
3272                                 $query_strategy_part = "true";
3273                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3274                         } else if ($feed <= -10) { // labels
3275                                 $label_id = -$feed - 11;
3276
3277                                 $query_strategy_part = "label_id = '$label_id' AND
3278                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
3279                                         ttrss_user_labels2.article_id = ref_id";
3280
3281                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3282                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3283  
3284                         } else {
3285                                 $query_strategy_part = "id > 0"; // dumb
3286                         }
3287
3288                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
3289                                 $order_by = "updated";
3290                         } else {        
3291                                 $order_by = "updated DESC";
3292                         }
3293
3294                         if ($view_mode != "noscores") {
3295                                 $order_by = "score DESC, $order_by";
3296                         }
3297
3298                         if ($override_order) {
3299                                 $order_by = $override_order;
3300                         }
3301         
3302                         $feed_title = "";
3303
3304                         if ($search && $search_mode == "all_feeds") {
3305                                 $feed_title = __("Search results")." ($search)";
3306                         } else if ($search && preg_match('/^-?[0-9][0-9]*$/', $feed) == false) {
3307                                 $feed_title = __("Search results")." ($search, $feed)";
3308                         } else if (preg_match('/^-?[0-9][0-9]*$/', $feed) == false) {
3309                                 $feed_title = $feed;
3310                         } else if (preg_match('/^-?[0-9][0-9]*$/', $feed) != false && $feed >= 0) {
3311         
3312                                 if ($cat_view) {
3313
3314                                         if ($feed != 0) {                       
3315                                                 $result = db_query($link, "SELECT title FROM ttrss_feed_categories
3316                                                         WHERE id = '$feed' AND owner_uid = $owner_uid");
3317                                                 $feed_title = db_fetch_result($result, 0, "title");
3318                                         } else {
3319                                                 $feed_title = __("Uncategorized");
3320                                         }
3321
3322                                         if ($search) {
3323                                                 $feed_title = __("Searched for")." $search ($feed_title)";
3324                                         }
3325
3326                                 } else {
3327                                         
3328                                         $result = db_query($link, "SELECT title,site_url,last_error FROM ttrss_feeds 
3329                                                 WHERE id = '$feed' AND owner_uid = $owner_uid");
3330                 
3331                                         $feed_title = db_fetch_result($result, 0, "title");
3332                                         $feed_site_url = db_fetch_result($result, 0, "site_url");
3333                                         $last_error = db_fetch_result($result, 0, "last_error");
3334
3335                                         if ($search) {
3336                                                 $feed_title = __("Searched for") . " $search ($feed_title)";
3337                                         }
3338                                 }
3339         
3340                         } else if ($feed == -1) {
3341                                 $feed_title = __("Starred articles");
3342                                 if ($search) {  $feed_title = __("Searched for") . " $search ($feed_title)"; }
3343                         } else if ($feed == -2) {
3344                                 if (!$cat_view) {
3345                                         $feed_title = __("Published articles");
3346                                         if ($search) {  $feed_title = __("Searched for") . " $search ($feed_title)"; }
3347                                 } else {
3348                                         $feed_title = __("Labels");
3349                                 }
3350                         } else if ($feed == -3) {
3351                                 $feed_title = __("Fresh articles");
3352                                 if ($search) {  $feed_title = __("Searched for") . " $search ($feed_title)"; }
3353                         } else if ($feed == -4) {
3354                                 $feed_title = __("All articles");
3355                                 if ($search) {  $feed_title = __("Searched for") . " $search ($feed_title)"; }
3356                         } else if ($feed < -10) {
3357                                 $label_id = -$feed - 11;
3358                                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
3359                                         WHERE id = '$label_id'");
3360                                 $feed_title = db_fetch_result($result, 0, "caption");
3361
3362                                 if ($search) {
3363                                         $feed_title = __("Searched for") . " $search ($feed_title)";
3364                                 }
3365                         } else {
3366                                 $feed_title = "?";
3367                         }
3368
3369                         $content_query_part = "content as content_preview,";
3370
3371                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
3372         
3373                                 if ($feed >= 0) {
3374                                         $feed_kind = "Feeds";
3375                                 } else {
3376                                         $feed_kind = "Labels";
3377                                 }
3378         
3379                                 if ($limit_query_part) {
3380                                         $offset_query_part = "OFFSET $offset";
3381                                 }
3382
3383                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
3384                                         if (!$override_order) {
3385                                                 $order_by = "ttrss_feeds.title, $order_by";     
3386                                         }
3387
3388                                         // Special output for Fresh feed
3389
3390 /*                                      if ($feed == -3) {
3391                                                 $group_limit_part = "(select count(*) from 
3392                                                         ttrss_user_entries AS t1, ttrss_entries AS t2 where
3393                                                                 t1.ref_id = t2.id and t1.owner_uid = 2 and
3394                                                                 t1.feed_id = ttrss_user_entries.feed_id and
3395                                                                 t2.updated > ttrss_entries.updated) <= 5 AND";
3396 } */
3397                                 }
3398
3399                                 $query = "SELECT DISTINCT 
3400                                                 guid,
3401                                                 ttrss_entries.id,ttrss_entries.title,
3402                                                 updated,
3403                                                 unread,feed_id,marked,published,link,last_read,
3404                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3405                                                 $vfeed_query_part
3406                                                 $content_query_part
3407                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3408                                                 author,score
3409                                         FROM
3410                                                 ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part
3411                                         WHERE
3412                                         $group_limit_part
3413                                         ttrss_feeds.hidden = false AND 
3414                                         ttrss_user_entries.feed_id = ttrss_feeds.id AND
3415                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
3416                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
3417                                         $search_query_part
3418                                         $view_query_part
3419                                         $query_strategy_part ORDER BY $order_by
3420                                         $limit_query_part $offset_query_part";
3421
3422                                 if ($_GET["debug"]) print $query;
3423
3424                                 $result = db_query($link, $query);
3425         
3426                         } else {
3427                                 // browsing by tag
3428         
3429                                 $feed_kind = "Tags";
3430         
3431                                 $result = db_query($link, "SELECT
3432                                         guid,
3433                                         ttrss_entries.id as id,title,
3434                                         updated,
3435                                         unread,feed_id,
3436                                         marked,link,last_read,                          
3437                                         ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3438                                         $vfeed_query_part
3439                                         $content_query_part
3440                                         ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3441                                         score
3442                                         FROM
3443                                                 ttrss_entries,ttrss_user_entries,ttrss_tags
3444                                         WHERE
3445                                                 ref_id = ttrss_entries.id AND 
3446                                                 ttrss_user_entries.owner_uid = '$owner_uid' AND
3447                                                 post_int_id = int_id AND tag_name = '$feed' AND
3448                                                 $view_query_part
3449                                                 $search_query_part
3450                                                 $query_strategy_part ORDER BY $order_by
3451                                         $limit_query_part");    
3452                         }
3453
3454                         return array($result, $feed_title, $feed_site_url, $last_error);
3455                         
3456         }
3457
3458         function generate_syndicated_feed($link, $owner_uid, $feed, $is_cat,
3459                 $limit, $search, $search_mode, $match_on) {
3460
3461                 if (!$limit) $limit = 30;
3462
3463                 $qfh_ret = queryFeedHeadlines($link, $feed, 
3464                         $limit, false, $is_cat, $search, $search_mode, $match_on, "updated DESC", 0,
3465                         $owner_uid);
3466
3467                 $result = $qfh_ret[0];
3468                 $feed_title = htmlspecialchars($qfh_ret[1]);
3469                 $feed_site_url = $qfh_ret[2];
3470                 $last_error = $qfh_ret[3];
3471
3472 //              if (!$feed_site_url) $feed_site_url = "http://localhost/";
3473
3474                 print "<?xml version=\"1.0\" encoding=\"utf-8\"?>
3475                         <?xml-stylesheet type=\"text/xsl\" href=\"rss.xsl\"?>
3476                         <rss version=\"2.0\">
3477                         <channel>
3478                         <title>$feed_title</title>
3479                         <link>$feed_site_url</link>
3480                         <description>Feed generated by Tiny Tiny RSS</description>";
3481  
3482                 while ($line = db_fetch_assoc($result)) {
3483                         print "<item>";
3484                         print "<guid>" . htmlspecialchars($line["guid"]) . "</guid>";
3485                         print "<link>" . htmlspecialchars($line["link"]) . "</link>";
3486
3487                         $tags = get_article_tags($link, $line["id"], $owner_uid);
3488
3489                         foreach ($tags as $tag) {
3490                                 print "<category>" . htmlspecialchars($tag) . "</category>";
3491                         }
3492
3493                         $rfc822_date = date('r', strtotime($line["updated"]));
3494   
3495                         print "<pubDate>$rfc822_date</pubDate>";
3496  
3497                         print "<title>" . 
3498                                 htmlspecialchars($line["title"]) . "</title>";
3499   
3500                         print "<description><![CDATA[" . 
3501                                 $line["content_preview"] . "]]></description>";
3502   
3503                         print "</item>";
3504                 }
3505   
3506                 print "</channel></rss>";
3507
3508         }
3509
3510         function getCategoryTitle($link, $cat_id) {
3511
3512                 if ($cat_id == -1) {
3513                         return __("Special");
3514                 } else if ($cat_id == -2) {
3515                         return __("Labels");
3516                 } else {
3517
3518                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
3519                                 id = '$cat_id'");
3520
3521                         if (db_num_rows($result) == 1) {
3522                                 return db_fetch_result($result, 0, "title");
3523                         } else {
3524                                 return "Uncategorized";
3525                         }
3526                 }
3527         }
3528
3529         // http://ru2.php.net/strip-tags
3530
3531         function strip_tags_long($textstring, $allowed){
3532         while($textstring != strip_tags($textstring, $allowed))
3533     {
3534     while (strlen($textstring) != 0)
3535          {
3536          if (strlen($textstring) > 1024) {
3537               $otherlen = 1024;
3538          } else {
3539               $otherlen = strlen($textstring);
3540          }
3541          $temptext = strip_tags(substr($textstring,0,$otherlen), $allowed);
3542          $safetext .= $temptext;
3543          $textstring = substr_replace($textstring,'',0,$otherlen);
3544          }  
3545     $textstring = $safetext;
3546     }
3547         return $textstring;
3548         }
3549
3550
3551         function sanitize_rss($link, $str, $force_strip_tags = false) {
3552                 $res = $str;
3553
3554                 if (get_pref($link, "STRIP_UNSAFE_TAGS") || $force_strip_tags) {
3555
3556                         $res = strip_tags_long($res, 
3557                                 "<p><a><i><em><b><strong><code><pre><blockquote><br><img><ul><ol><li>");
3558
3559 //                      $res = preg_replace("/\r\n|\n|\r/", "", $res);
3560 //                      $res = strip_tags_long($res, "<p><a><i><em><b><strong><blockquote><br><img><div><span>");                       
3561                 }
3562
3563                 if (get_pref($link, "STRIP_IMAGES")) {
3564                         
3565                         $res = preg_replace('/<img[^>]+>/is', '', $res);
3566
3567                 }
3568
3569                 return $res;
3570         }
3571
3572         /**
3573          * Send by mail a digest of last articles.
3574          * 
3575          * @param mixed $link The database connection.
3576          * @param integer $limit The maximum number of articles by digest.
3577          * @return boolean Return false if digests are not enabled.
3578          */
3579         function send_headlines_digests($link, $limit = 100) {
3580
3581                 if (!DIGEST_ENABLE) return false;
3582
3583                 $user_limit = DIGEST_EMAIL_LIMIT;
3584                 $days = 1;
3585
3586                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
3587
3588                 if (DB_TYPE == "pgsql") {
3589                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
3590                 } else if (DB_TYPE == "mysql") {
3591                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
3592                 }
3593
3594                 $result = db_query($link, "SELECT id,email FROM ttrss_users 
3595                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
3596
3597                 while ($line = db_fetch_assoc($result)) {
3598
3599                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
3600                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
3601
3602                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
3603
3604                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
3605                                 $digest = $tuple[0];
3606                                 $headlines_count = $tuple[1];
3607                                 $affected_ids = $tuple[2];
3608                                 $digest_text = $tuple[3];
3609
3610                                 if ($headlines_count > 0) {
3611
3612                                         $mail = new PHPMailer();
3613
3614                                         $mail->PluginDir = "lib/phpmailer/";
3615                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
3616
3617                                         $mail->CharSet = "UTF-8";
3618
3619                                         $mail->From = DIGEST_FROM_ADDRESS;
3620                                         $mail->FromName = DIGEST_FROM_NAME;
3621                                         $mail->AddAddress($line["email"], $line["login"]);
3622
3623                                         if (DIGEST_SMTP_HOST) {
3624                                                 $mail->Host = DIGEST_SMTP_HOST;
3625                                                 $mail->Mailer = "smtp";
3626                                                 $mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
3627                                                 $mail->Username = DIGEST_SMTP_LOGIN;
3628                                                 $mail->Password = DIGEST_SMTP_PASSWORD;
3629                                         }
3630
3631                                         $mail->IsHTML(true);
3632                                         $mail->Subject = DIGEST_SUBJECT;
3633                                         $mail->Body = $digest;
3634                                         $mail->AltBody = $digest_text;
3635
3636                                         $rc = $mail->Send();
3637
3638                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
3639
3640                                         print "RC=$rc\n";
3641
3642                                         if ($rc && $do_catchup) {
3643                                                 print "Marking affected articles as read...\n";
3644                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
3645                                         }
3646
3647                                         db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW() 
3648                                                         WHERE id = " . $line["id"]);
3649                                 } else {
3650                                         print "No headlines\n";
3651                                 }
3652                         }
3653                 }
3654
3655                 print "All done.\n";
3656
3657         }
3658
3659         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
3660
3661                 require_once "lib/MiniTemplator.class.php";
3662
3663                 $tpl = new MiniTemplator;
3664                 $tpl_t = new MiniTemplator;
3665
3666                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
3667                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
3668
3669                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
3670                 $tpl->setVariable('CUR_TIME', date('G:i'));
3671
3672                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
3673                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
3674
3675                 $affected_ids = array();
3676
3677                 if (DB_TYPE == "pgsql") {
3678                         $interval_query = "ttrss_entries.date_entered > NOW() - INTERVAL '$days days'";
3679                 } else if (DB_TYPE == "mysql") {
3680                         $interval_query = "ttrss_entries.date_entered > DATE_SUB(NOW(), INTERVAL $days DAY)";
3681                 }
3682
3683                 $result = db_query($link, "SELECT ttrss_entries.title,
3684                                 ttrss_feeds.title AS feed_title,
3685                                 date_entered,
3686                                 ttrss_user_entries.ref_id,
3687                                 link,
3688                                 SUBSTRING(content, 1, 120) AS excerpt,
3689                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
3690                         FROM 
3691                                 ttrss_user_entries,ttrss_entries,ttrss_feeds 
3692                         WHERE 
3693                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id 
3694                                 AND include_in_digest = true
3695                                 AND $interval_query
3696                                 AND hidden = false
3697                                 AND ttrss_user_entries.owner_uid = $user_id
3698                                 AND unread = true 
3699                         ORDER BY ttrss_feeds.title, date_entered DESC
3700                         LIMIT $limit");
3701
3702                 $cur_feed_title = "";
3703
3704                 $headlines_count = db_num_rows($result);
3705
3706                 $headlines = array();
3707
3708                 while ($line = db_fetch_assoc($result)) {
3709                         array_push($headlines, $line);
3710                 }
3711
3712                 for ($i = 0; $i < sizeof($headlines); $i++) {   
3713
3714                         $line = $headlines[$i];
3715
3716                         array_push($affected_ids, $line["ref_id"]);
3717
3718                         $updated = smart_date_time(strtotime($line["last_updated"]));
3719
3720                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
3721                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
3722                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
3723                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
3724                         $tpl->setVariable('ARTICLE_EXCERPT', 
3725                                 truncate_string(strip_tags($line["excerpt"]), 100));
3726
3727                         $tpl->addBlock('article');
3728
3729                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
3730                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
3731                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
3732                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
3733 //                      $tpl_t->setVariable('ARTICLE_EXCERPT', 
3734 //                              truncate_string(strip_tags($line["excerpt"]), 100));
3735
3736                         $tpl_t->addBlock('article');
3737
3738                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
3739                                 $tpl->addBlock('feed');
3740                                 $tpl_t->addBlock('feed');
3741                         }
3742
3743                 }
3744
3745                 $tpl->addBlock('digest');
3746                 $tpl->generateOutputToString($tmp);
3747
3748                 $tpl_t->addBlock('digest');
3749                 $tpl_t->generateOutputToString($tmp_t);
3750
3751                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
3752         }
3753
3754         function check_for_update($link) {
3755                 $releases_feed = "http://tt-rss.org/releases.rss";
3756
3757                 if (!CHECK_FOR_NEW_VERSION || $_SESSION["access_level"] < 10) {
3758                         return;
3759                 }
3760
3761                 error_reporting(0);
3762                 if (ENABLE_SIMPLEPIE) {
3763                         $rss = new SimplePie();
3764                         $rss->set_useragent(SIMPLEPIE_USERAGENT . MAGPIE_USER_AGENT_EXT);
3765 //                      $rss->set_timeout(MAGPIE_FETCH_TIME_OUT);
3766                         $rss->set_feed_url($fetch_url);
3767                         $rss->set_output_encoding('UTF-8');
3768                         $rss->init();
3769                 } else {
3770                         $rss = fetch_rss($releases_feed);
3771                 }
3772                 error_reporting (DEFAULT_ERROR_LEVEL);
3773
3774                 if ($rss) {
3775
3776                         if (ENABLE_SIMPLEPIE) {
3777                                 $items = $rss->get_items();
3778                         } else {
3779                                 $items = $rss->items;
3780
3781                                 if (!$items || !is_array($items)) $items = $rss->entries;
3782                                 if (!$items || !is_array($items)) $items = $rss;
3783                         }
3784
3785                         if (!is_array($items) || count($items) == 0) {
3786                                 return;
3787                         }                       
3788
3789                         $latest_item = $items[0];
3790
3791                         if (ENABLE_SIMPLEPIE) {
3792                                 $last_title = $latest_item->get_title();
3793                         } else {
3794                                 $last_title = $latest_item["title"];
3795                         }
3796
3797                         $latest_version = trim(preg_replace("/(Milestone)|(completed)/", "", $last_title));
3798
3799                         if (ENABLE_SIMPLEPIE) {
3800                                 $release_url = sanitize_rss($link, $latest_item->get_link());
3801                                 $content = sanitize_rss($link, $latest_item->get_description());
3802                         } else {
3803                                 $release_url = sanitize_rss($link, $latest_item["link"]);
3804                                 $content = sanitize_rss($link, $latest_item["description"]);
3805                         }
3806
3807                         if (version_compare(VERSION, $latest_version) == -1) {
3808                                 return sprintf("New version of Tiny-Tiny RSS (%s) is available:", 
3809                                         $latest_version)."<div class='milestoneDetails'>$content</div>";
3810                         } else {
3811                                 return false;
3812                         }       
3813                 }
3814         }
3815
3816         function markArticlesById($link, $ids, $cmode) {
3817
3818                 $tmp_ids = array();
3819
3820                 foreach ($ids as $id) {
3821                         array_push($tmp_ids, "ref_id = '$id'");
3822                 }
3823
3824                 $ids_qpart = join(" OR ", $tmp_ids);
3825
3826                 if ($cmode == 0) {
3827                         db_query($link, "UPDATE ttrss_user_entries SET 
3828                         marked = false,last_read = NOW()
3829                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3830                 } else if ($cmode == 1) {
3831                         db_query($link, "UPDATE ttrss_user_entries SET 
3832                         marked = true
3833                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3834                 } else {
3835                         db_query($link, "UPDATE ttrss_user_entries SET 
3836                         marked = NOT marked,last_read = NOW()
3837                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3838                 }
3839         }
3840
3841         function publishArticlesById($link, $ids, $cmode) {
3842
3843                 $tmp_ids = array();
3844
3845                 foreach ($ids as $id) {
3846                         array_push($tmp_ids, "ref_id = '$id'");
3847                 }
3848
3849                 $ids_qpart = join(" OR ", $tmp_ids);
3850
3851                 if ($cmode == 0) {
3852                         db_query($link, "UPDATE ttrss_user_entries SET 
3853                         published = false,last_read = NOW()
3854                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3855                 } else if ($cmode == 1) {
3856                         db_query($link, "UPDATE ttrss_user_entries SET 
3857                         published = true
3858                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3859                 } else {
3860                         db_query($link, "UPDATE ttrss_user_entries SET 
3861                         published = NOT published,last_read = NOW()
3862                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3863                 }
3864         }
3865
3866         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
3867
3868                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3869
3870                 $tmp_ids = array();
3871
3872                 foreach ($ids as $id) {
3873                         array_push($tmp_ids, "ref_id = '$id'");
3874                 }
3875
3876                 $ids_qpart = join(" OR ", $tmp_ids);
3877
3878                 if ($cmode == 0) {
3879                         db_query($link, "UPDATE ttrss_user_entries SET 
3880                         unread = false,last_read = NOW()
3881                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3882                 } else if ($cmode == 1) {
3883                         db_query($link, "UPDATE ttrss_user_entries SET 
3884                         unread = true
3885                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3886                 } else {
3887                         db_query($link, "UPDATE ttrss_user_entries SET 
3888                         unread = NOT unread,last_read = NOW()
3889                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3890                 }
3891
3892                 /* update ccache */
3893
3894                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
3895                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3896
3897                 while ($line = db_fetch_assoc($result)) {
3898                         ccache_update($link, $line["feed_id"], $owner_uid);
3899                 }
3900         }
3901
3902         function catchupArticleById($link, $id, $cmode) {
3903
3904                 if ($cmode == 0) {
3905                         db_query($link, "UPDATE ttrss_user_entries SET 
3906                         unread = false,last_read = NOW()
3907                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3908                 } else if ($cmode == 1) {
3909                         db_query($link, "UPDATE ttrss_user_entries SET 
3910                         unread = true
3911                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3912                 } else {
3913                         db_query($link, "UPDATE ttrss_user_entries SET 
3914                         unread = NOT unread,last_read = NOW()
3915                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3916                 }
3917         }
3918
3919         function make_guid_from_title($title) {
3920                 return preg_replace("/[ \"\',.:;]/", "-", 
3921                         mb_strtolower(strip_tags($title), 'utf-8'));
3922         }
3923
3924         function print_headline_subtoolbar($link, $feed_site_url, $feed_title, 
3925                         $feed_id, $is_cat, $search, $match_on,
3926                         $search_mode) {
3927
3928                         print "<div class=\"headlinesSubToolbar\">";
3929
3930                         $page_prev_link = "javascript:viewFeedGoPage(-1)";
3931                         $page_next_link = "javascript:viewFeedGoPage(1)";
3932                         $page_first_link = "javascript:viewFeedGoPage(0)";
3933
3934                         $catchup_page_link = "javascript:catchupPage()";
3935                         $catchup_feed_link = "javascript:catchupCurrentFeed()";
3936                         $catchup_sel_link = "javascript:catchupSelection()";
3937
3938                         if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
3939
3940                                 $sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
3941                                 $sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
3942                                 $sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
3943                                 $sel_inv_link = "javascript:invertHeadlineSelection()";
3944
3945                                 $tog_unread_link = "javascript:selectionToggleUnread()";
3946                                 $tog_marked_link = "javascript:selectionToggleMarked()";
3947                                 $tog_published_link = "javascript:selectionTogglePublished()";
3948
3949                         } else {
3950
3951                                 $sel_all_link = "javascript:cdmSelectArticles('all')";
3952                                 $sel_unread_link = "javascript:cdmSelectArticles('unread')";
3953                                 $sel_none_link = "javascript:cdmSelectArticles('none')";
3954
3955                                 $sel_inv_link = "javascript:invertHeadlineSelection()";
3956
3957                                 $tog_unread_link = "javascript:selectionToggleUnread(true)";
3958                                 $tog_marked_link = "javascript:selectionToggleMarked(true)";
3959                                 $tog_published_link = "javascript:selectionTogglePublished(true)";
3960
3961                         }
3962
3963                         print "<div id=\"subtoolbar_ftitle\">";
3964
3965                         if ($feed_site_url) {
3966                                 if (!$bottom) {
3967                                         $target = "target=\"_blank\"";
3968                                 }
3969                                 print "<a $target href=\"$feed_site_url\">".
3970                                         truncate_string($feed_title,30)."</a>";
3971                         } else {
3972                                 print $feed_title;
3973                         }
3974
3975                         if ($search) {
3976                                 $search_q = "&q=$search&m=$match_on&smode=$search_mode";
3977                         }
3978
3979                         print "
3980                                 <a target=\"_blank\" 
3981                                         href=\"backend.php?op=rss&id=$feed_id&is_cat=$is_cat$search_q\">
3982                                         <img class=\"noborder\" 
3983                                                 alt=\"".__('Generated feed')."\" src=\"images/feed-icon-12x12.png\">
3984                                                 </a>";
3985
3986                         print "</div>";
3987
3988                         print __('Select:')."
3989                                 <a href=\"$sel_all_link\">".__('All')."</a>,
3990                                 <a href=\"$sel_unread_link\">".__('Unread')."</a>,
3991                                 <a href=\"$sel_inv_link\">".__('Invert')."</a>,
3992                                 <a href=\"$sel_none_link\">".__('None')."</a></li>";
3993
3994                         print "&nbsp;&nbsp;";
3995
3996                         print "<span 
3997                                 onmouseover=\"enable_selection(false)\" 
3998             onmouseout=\"enable_selection(true)\"
3999                                 onclick=\"toggleHeadlineActions()\" id=\"headlineActionsDrop\">".
4000                                 __("Actions...") . "&nbsp;&nbsp;<img src=\"images/down_arrow.png\">
4001                                 </span>";
4002
4003                         print "<ul id=\"headlineActionsBody\" style=\"display : none\">";
4004
4005                         print "<li class=\"insensitive\">".__('Selection toggle:')."</li>
4006                                 <li onclick=\"$tog_unread_link\">&nbsp;&nbsp;".__('Unread')."</li>
4007                                 <li onclick=\"$tog_marked_link\">&nbsp;&nbsp;".__('Starred')."</li>
4008                                 <li onclick=\"$tog_published_link\">&nbsp;&nbsp;".__('Published')."</li>
4009                                 <!-- <li><span class=\"insensitive\">--------</span></li> -->
4010                                 <li class=\"insensitive\">".__('Mark as read:')."</li>
4011                                 <li onclick=\"$catchup_sel_link\">&nbsp;&nbsp;".__('Selection')."</li>";
4012
4013                         print "<li onclick=\"$catchup_feed_link\">&nbsp;&nbsp;".__('Entire feed').
4014                                 "</li>";
4015
4016                         //print "<li><span class=\"insensitive\">--------</span></li>";
4017                         print "<li class=\"insensitive\">".__('Assign label:')."</li>";
4018
4019                         print_labels_headlines_dropdown($link, $feed_id);
4020
4021                         print "</ul>";
4022
4023                         print "</div>";
4024                 }
4025
4026         function printCategoryHeader($link, $cat_id, $hidden = false, $can_browse = true) {
4027
4028                         $tmp_category = getCategoryTitle($link, $cat_id);
4029
4030                         if ($cat_id > 0) {
4031                                 $cat_unread = ccache_find($link, $cat_id, $_SESSION["uid"], true);
4032                         } else if ($cat_id == 0 || $cat_id == -2) {
4033                                 $cat_unread = getCategoryUnread($link, $cat_id);
4034                         }
4035
4036                         if ($hidden) {
4037                                 $holder_style = "display:none;";
4038                                 $ellipsis = "…";
4039                         } else {
4040                                 $holder_style = "";
4041                                 $ellipsis = "";
4042                         }
4043
4044                         $catctr_class = ($cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
4045
4046                         if ($can_browse) {
4047                                 $browse_cat_link = "onclick=\"javascript:viewCategory($cat_id)\"";
4048                                 $inner_title_class = "catTitle";
4049                         } else {
4050                                 $browse_cat_link = "";
4051                                 $inner_title_class = "catTitleNL";
4052                         }
4053
4054                         $cat_class = "feedCat";
4055
4056                         print "<li class=\"$cat_class\" id=\"FCAT-$cat_id\">
4057                                 <img onclick=\"toggleCollapseCat($cat_id)\" class=\"catCollapse\"
4058                                         title=\"".__('Click to collapse category')."\"
4059                                         src=\"images/cat-collapse.png\"><span class=\"$inner_title_class\" 
4060                                         id=\"FCATN-$cat_id\" $browse_cat_link
4061                                 \">$tmp_category</span>";
4062
4063                         print "<span id=\"FCAP-$cat_id\">";
4064
4065                         print " <span id=\"FCATCTR-$cat_id\" 
4066                                 class=\"$catctr_class\">($cat_unread)</span> $ellipsis";
4067
4068                         print "</span>";
4069
4070                         //print "</li>";
4071
4072                         print "<ul class=\"feedCatList\" id=\"FCATLIST-$cat_id\" style='$holder_style'>";
4073
4074         }
4075         
4076         function outputFeedList($link, $tags = false) {
4077
4078                 print "<ul class=\"feedList\" id=\"feedList\">";
4079
4080                 $owner_uid = $_SESSION["uid"];
4081
4082                 /* virtual feeds */
4083
4084                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
4085
4086                         if ($_COOKIE["ttrss_vf_vclps"] == 1) {
4087                                 $cat_hidden = true;
4088                         } else {
4089                                 $cat_hidden = false;
4090                         }
4091
4092                         printCategoryHeader($link, -1, $cat_hidden, false);
4093                 }
4094
4095                 $num_starred = getFeedUnread($link, -1);
4096                 $num_published = getFeedUnread($link, -2);
4097                 $num_fresh = getFeedUnread($link, -3);
4098                 $num_total = getFeedUnread($link, -4);
4099
4100                 $class = "virt";
4101
4102                 if ($num_total > 0) $class .= "Unread";
4103
4104                 printFeedEntry(-4, $class, __("All articles"), $num_total, 
4105                         "images/tag.png", $link);
4106
4107                 $class = "virt";
4108
4109                 if ($num_fresh > 0) $class .= "Unread";
4110
4111                 printFeedEntry(-3, $class, __("Fresh articles"), $num_fresh, 
4112                         "images/fresh.png", $link);
4113
4114                 $class = "virt";
4115
4116                 if ($num_starred > 0) $class .= "Unread";
4117
4118                 $is_ie = (strpos($_SESSION["client.userAgent"], "MSIE") !== false);
4119
4120                 if ($is_ie) {
4121                         $mark_img_ext = "gif";
4122                 } else {
4123                         $mark_img_ext = "png";
4124                 }
4125
4126                 printFeedEntry(-1, $class, __("Starred articles"), $num_starred, 
4127                         "images/mark_set.$mark_img_ext", $link);
4128
4129                 $class = "virt";
4130
4131                 if ($num_published > 0) $class .= "Unread";
4132
4133                 printFeedEntry(-2, $class, __("Published articles"), $num_published, 
4134                         "images/pub_set.gif", $link);
4135
4136                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
4137                         print "</ul></li>";
4138                 }
4139
4140                 if (!$tags) {
4141
4142
4143                                 $result = db_query($link, "SELECT * FROM
4144                                         ttrss_labels2 WHERE owner_uid = '$owner_uid' ORDER by caption");
4145                 
4146                                 if (db_num_rows($result) > 0) {
4147                                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
4148
4149                                                 if ($_COOKIE["ttrss_vf_lclps"] == 1) {
4150                                                         $cat_hidden = true;
4151                                                 } else {
4152                                                         $cat_hidden = false;
4153                                                 }
4154
4155                                                 printCategoryHeader($link, -2, $cat_hidden, true);
4156
4157                                         } else {
4158                                                 print "<li><hr></li>";
4159                                         }
4160                                 }
4161                 
4162                                 while ($line = db_fetch_assoc($result)) {
4163         
4164                                         $label_id = -$line['id'] - 11;
4165                                         $count = getFeedUnread($link, $label_id);
4166
4167                                         $class = "label";
4168         
4169                                         if ($count > 0) {
4170                                                 $class .= "Unread";
4171                                         }
4172         
4173                                         printFeedEntry($label_id, 
4174                                                 $class, $line["caption"], 
4175                                                 $count, "images/label.png", $link, 
4176                                                 false, false, false,
4177                                                 $line['fg_color'], $line['bg_color']);
4178                 
4179                                 }
4180
4181                                 if (db_num_rows($result) > 0) {
4182                                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
4183                                                 print "</ul>";
4184                                         }
4185                                 } 
4186
4187
4188                         if (!get_pref($link, 'ENABLE_FEED_CATS')) {
4189                                 print "<li><hr></li>";
4190                         }
4191
4192                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
4193                                 if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4194                                         $order_by_qpart = "order_id,category,unread DESC,title";
4195                                 } else {
4196                                         $order_by_qpart = "order_id,category,title";
4197                                 }
4198                         } else {
4199                                 if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4200                                         $order_by_qpart = "unread DESC,title";
4201                                 } else {                
4202                                         $order_by_qpart = "title";
4203                                 }
4204                         }
4205
4206                         $age_qpart = getMaxAgeSubquery();
4207
4208                         $query = "SELECT ttrss_feeds.*,
4209                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated_noms,
4210                                 cat_id,last_error,
4211                                 ttrss_feed_categories.title AS category,
4212                                 ttrss_feed_categories.collapsed,
4213                                 value AS unread 
4214                                 FROM ttrss_feeds LEFT JOIN ttrss_feed_categories
4215                                         ON (ttrss_feed_categories.id = cat_id)                  
4216                                 LEFT JOIN ttrss_counters_cache 
4217                                         ON
4218                                                 (ttrss_feeds.id = feed_id)
4219                                 WHERE 
4220                                         ttrss_feeds.hidden = false AND
4221                                         ttrss_feeds.owner_uid = '$owner_uid' AND parent_feed IS NULL
4222                                 ORDER BY $order_by_qpart"; 
4223
4224                         $result = db_query($link, $query);
4225
4226                         $actid = $_GET["actid"];
4227         
4228                         /* real feeds */
4229         
4230                         $lnum = 0;
4231         
4232                         $total_unread = 0;
4233
4234                         $category = "";
4235
4236                         $short_date = get_pref($link, 'SHORT_DATE_FORMAT');
4237         
4238                         while ($line = db_fetch_assoc($result)) {
4239                         
4240                                 $feed = trim($line["title"]);
4241
4242                                 if (!$feed) $feed = "[Untitled]";
4243
4244                                 $feed_id = $line["id"];   
4245                                 $unread = $line["unread"];
4246         
4247                                 $subop = $_GET["subop"];
4248
4249                                 if (get_pref($link, 'HEADLINES_SMART_DATE')) {
4250                                         $last_updated = smart_date_time(strtotime($line["last_updated_noms"]));
4251                                 } else {
4252                                         $last_updated = date($short_date, strtotime($line["last_updated_noms"]));
4253                                 }
4254
4255                                 $rtl_content = sql_bool_to_bool($line["rtl_content"]);
4256
4257                                 if ($rtl_content) {
4258                                         $rtl_tag = "dir=\"RTL\"";
4259                                 } else {
4260                                         $rtl_tag = "";
4261                                 }
4262
4263                                 $tmp_result = db_query($link,
4264                                         "SELECT SUM(value) AS unread FROM ttrss_feeds, ttrss_counters_cache 
4265                                                 WHERE parent_feed = '$feed_id' AND feed_id = id");
4266
4267                                 $unread += db_fetch_result($tmp_result, 0, "unread");
4268         
4269                                 $cat_id = $line["cat_id"];
4270
4271                                 $tmp_category = $line["category"];
4272
4273                                 if (!$tmp_category) {
4274                                         $tmp_category = __("Uncategorized");
4275                                 }
4276                                 
4277         //                      $class = ($lnum % 2) ? "even" : "odd";
4278
4279                                 if ($line["last_error"]) {
4280                                         $class = "error";
4281                                 } else {
4282                                         $class = "feed";
4283                                 }
4284         
4285                                 if ($unread > 0) $class .= "Unread";
4286         
4287                                 if ($actid == $feed_id) {
4288                                         $class .= "Selected";
4289                                 }
4290         
4291                                 $total_unread += $unread;
4292
4293                                 if ($category != $tmp_category && get_pref($link, 'ENABLE_FEED_CATS')) {
4294                                 
4295                                         if ($category) {
4296                                                 print "</ul></li>";
4297                                         }
4298                                 
4299                                         $category = $tmp_category;
4300
4301                                         $collapsed = sql_bool_to_bool($line["collapsed"]);
4302
4303                                         // workaround for NULL category
4304                                         if ($category == __("Uncategorized")) {
4305                                                 if ($_COOKIE["ttrss_vf_uclps"] == 1) {
4306                                                         $collapsed = "t";
4307                                                 }
4308                                         }
4309
4310                                         $cat_id = sprintf("%d", $cat_id);
4311
4312                                         printCategoryHeader($link, $cat_id, $collapsed, true);
4313
4314                                 }
4315         
4316                                 printFeedEntry($feed_id, $class, $feed, $unread, 
4317                                         ICONS_URL."/$feed_id.ico", $link, $rtl_content, 
4318                                         $last_updated, $line["last_error"]);
4319         
4320                                 ++$lnum;
4321                         }
4322
4323                         if (db_num_rows($result) == 0) {
4324                                 print "<li>".__('No feeds to display.')."</li>";
4325                         }
4326
4327                 } else {
4328
4329                         // tags
4330
4331 /*                      $result = db_query($link, "SELECT tag_name,count(ttrss_entries.id) AS count
4332                                 FROM ttrss_tags,ttrss_entries,ttrss_user_entries WHERE
4333                                 post_int_id = ttrss_user_entries.int_id AND 
4334                                 unread = true AND ref_id = ttrss_entries.id
4335                                 AND ttrss_tags.owner_uid = '$owner_uid' GROUP BY tag_name       
4336                         UNION
4337                                 select tag_name,0 as count FROM ttrss_tags WHERE owner_uid = '$owner_uid'
4338                         ORDER BY tag_name"); */
4339
4340                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
4341                                 print "<li class=\"feedCat\">".__('Tags')."</li>";
4342                                 print "<ul class=\"feedCatList\">";
4343                         }
4344
4345                         $age_qpart = getMaxAgeSubquery();
4346
4347                         $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id) 
4348                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id 
4349                                         AND ref_id = id AND $age_qpart
4350                                         AND unread = true)) AS count FROM ttrss_tags 
4351                                         WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name 
4352                                         ORDER BY count DESC LIMIT 50");
4353
4354                         $tags = array();
4355         
4356                         while ($line = db_fetch_assoc($result)) {
4357                                 $tags[$line["tag_name"]] += $line["count"];
4358                         }
4359         
4360                         foreach (array_keys($tags) as $tag) {
4361         
4362                                 $unread = $tags[$tag];
4363         
4364                                 $class = "tag";
4365         
4366                                 if ($unread > 0) {
4367                                         $class .= "Unread";
4368                                 }
4369         
4370                                 printFeedEntry($tag, $class, $tag, $unread, "images/tag.png", $link);
4371         
4372                         } 
4373
4374                         if (db_num_rows($result) == 0) {
4375                                 print "<li>No tags to display.</li>";
4376                         }
4377
4378                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
4379                                 print "</ul>";
4380                         }
4381
4382                 }
4383
4384                 print "</ul>";
4385
4386         }
4387
4388         function get_article_tags($link, $id, $owner_uid = 0) {
4389
4390                 $a_id = db_escape_string($id);
4391
4392                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4393
4394                 $tmp_result = db_query($link, "SELECT DISTINCT tag_name, 
4395                         owner_uid as owner FROM
4396                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
4397                                 ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name");
4398
4399                 $tags = array();        
4400         
4401                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
4402                         array_push($tags, $tmp_line["tag_name"]);                               
4403                 }
4404
4405                 return $tags;
4406         }
4407
4408         function trim_value(&$value) {
4409                 $value = trim($value);
4410         }       
4411
4412         function trim_array($array) {
4413                 $tmp = $array;
4414                 array_walk($tmp, 'trim_value');
4415                 return $tmp;
4416         }
4417
4418         function tag_is_valid($tag) {
4419                 if ($tag == '') return false;
4420                 if (preg_match("/^[0-9]*$/", $tag)) return false;
4421
4422                 if (function_exists('iconv')) {
4423                         $tag = iconv("utf-8", "utf-8", $tag);
4424                 }
4425
4426                 if (!$tag) return false;
4427
4428                 return true;
4429         }
4430
4431         function render_login_form($link, $mobile = false) {
4432                 if (!$mobile) {
4433                         require_once "login_form.php";
4434                 } else {
4435                         require_once "mobile/login_form.php";
4436                 }
4437         }
4438
4439         // from http://developer.apple.com/internet/safari/faq.html
4440         function no_cache_incantation() {
4441                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
4442                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
4443                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
4444                 header("Cache-Control: post-check=0, pre-check=0", false);
4445                 header("Pragma: no-cache"); // HTTP/1.0
4446         }
4447
4448         function format_warning($msg, $id = "") {
4449                 return "<div class=\"warning\" id=\"$id\"> 
4450                         <img src=\"images/sign_excl.gif\">$msg</div>";
4451         }
4452
4453         function format_notice($msg) {
4454                 return "<div class=\"notice\"> 
4455                         <img src=\"images/sign_info.gif\">$msg</div>";
4456         }
4457
4458         function format_error($msg) {
4459                 return "<div class=\"error\"> 
4460                         <img src=\"images/sign_excl.gif\">$msg</div>";
4461         }
4462
4463         function print_notice($msg) {
4464                 return print format_notice($msg);
4465         }
4466
4467         function print_warning($msg) {
4468                 return print format_warning($msg);
4469         }
4470
4471         function print_error($msg) {
4472                 return print format_error($msg);
4473         }
4474
4475
4476         function T_sprintf() {
4477                 $args = func_get_args();
4478                 return vsprintf(__(array_shift($args)), $args);
4479         }
4480
4481         function outputArticleXML($link, $id, $feed_id, $mark_as_read = true,
4482                 $zoom_mode = false) {
4483
4484                 /* we can figure out feed_id from article id anyway, why do we
4485                  * pass feed_id here? */
4486
4487                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4488                         WHERE ref_id = '$id'");
4489
4490                 $feed_id = db_fetch_result($result, 0, "feed_id");
4491
4492                 if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
4493
4494                 $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
4495                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
4496
4497                 if (db_num_rows($result) == 1) {
4498                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4499                 } else {
4500                         $rtl_content = false;
4501                 }
4502
4503                 if ($rtl_content) {
4504                         $rtl_tag = "dir=\"RTL\"";
4505                         $rtl_class = "RTL";
4506                 } else {
4507                         $rtl_tag = "";
4508                         $rtl_class = "";
4509                 }
4510
4511                 if ($mark_as_read) {
4512                         $result = db_query($link, "UPDATE ttrss_user_entries 
4513                                 SET unread = false,last_read = NOW() 
4514                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4515
4516                         ccache_update($link, $feed_id, $_SESSION["uid"]);
4517                 }
4518
4519                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
4520                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
4521                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
4522                         num_comments,
4523                         author
4524                         FROM ttrss_entries,ttrss_user_entries
4525                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
4526
4527                 if ($result) {
4528
4529                         $link_target = "";
4530
4531                         if (get_pref($link, 'OPEN_LINKS_IN_NEW_WINDOW')) {
4532                                 $link_target = "target=\"_blank\"";
4533                         }
4534
4535                         $line = db_fetch_assoc($result);
4536
4537                         if ($line["icon_url"]) {
4538                                 $feed_icon = "<img class=\"feedIcon\" src=\"" . $line["icon_url"] . "\">";
4539                         } else {
4540                                 $feed_icon = "&nbsp;";
4541                         }
4542
4543                         $num_comments = $line["num_comments"];
4544                         $entry_comments = "";
4545
4546                         if ($num_comments > 0) {
4547                                 if ($line["comments"]) {
4548                                         $comments_url = $line["comments"];
4549                                 } else {
4550                                         $comments_url = $line["link"];
4551                                 }
4552                                 $entry_comments = "<a $link_target href=\"$comments_url\">$num_comments comments</a>";
4553                         } else {
4554                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
4555                                         $entry_comments = "<a $link_target href=\"".$line["comments"]."\">comments</a>";
4556                                 }                               
4557                         }
4558
4559                         if ($zoom_mode) {
4560                                 header("Content-Type: text/html");
4561                                 print "<html><head>
4562                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
4563                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
4564                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
4565                                         </head><body>";
4566                         }
4567
4568
4569                         print "<div class=\"postReply\">";
4570
4571                         print "<div class=\"postHeader\" onmouseover=\"enable_resize(true)\" 
4572                                 onmouseout=\"enable_resize(false)\">";
4573
4574                         $entry_author = $line["author"];
4575
4576                         if ($entry_author) {
4577                                 $entry_author = __(" - ") . $entry_author;
4578                         }
4579
4580                         $parsed_updated = date(get_pref($link, 'LONG_DATE_FORMAT'), 
4581                                 strtotime($line["updated"]));
4582                 
4583                         print "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
4584
4585                         if ($line["link"]) {
4586                                 print "<div clear='both'><a $link_target href=\"" . $line["link"] . "\">" . 
4587                                         $line["title"] . "</a><span class='author'>$entry_author</span></div>";
4588                         } else {
4589                                 print "<div clear='both'>" . $line["title"] . "$entry_author</div>";
4590                         }
4591
4592                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
4593
4594                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
4595
4596                         print "<div style='float : right'>
4597                                         <img src='images/tag.png' class='tagsPic' alt='Tags' title='Tags'>";
4598
4599                         if (!$zoom_mode) {
4600                                 print "<span id=\"ATSTR-$id\">$tags_str</span>
4601                                         <a title=\"".__('Edit tags for this article')."\" 
4602                                         href=\"javascript:editArticleTags($id, $feed_id)\">(+)</a>";
4603
4604                                 if (defined('_ENABLE_INLINE_VIEW')) {
4605
4606                                         print "<img src=\"images/art-inline.png\" class='tagsPic' 
4607                                                         style=\"cursor : pointer\" style=\"cursor : pointer\"
4608                                                         onclick=\"showOriginalArticleInline($id)\"
4609                                                         alt='Inline' title='".__('Display original article content')."'>";
4610
4611                                 }
4612
4613                                 print "<img src=\"images/art-zoom.png\" class='tagsPic' 
4614                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
4615                                                 onclick=\"zoomToArticle($id)\"
4616                                                 alt='Zoom' title='".__('Show article summary in new window')."'>";
4617                         }
4618                         print "</div>";
4619                         print "<div clear='both'>$entry_comments</div>";
4620
4621                         print "</div>";
4622
4623                         print "<div class=\"postIcon\">" . $feed_icon . "</div>";
4624
4625                         print "<div class=\"postContent\">";
4626
4627                         $article_content = sanitize_rss($link, $line["content"]);
4628
4629                         if (get_pref($link, 'OPEN_LINKS_IN_NEW_WINDOW')) {
4630                                 $article_content = preg_replace("/href=/i", "target=\"_blank\" href=", 
4631                                         $article_content);
4632                         }
4633
4634                         print $article_content;
4635
4636                         $result = db_query($link, "SELECT * FROM ttrss_enclosures WHERE
4637                                 post_id = '$id' AND content_url != ''");
4638
4639                         if (db_num_rows($result) > 0) {
4640
4641                                 $entries_html = array();
4642                                 $entries = array();
4643
4644                                 while ($line = db_fetch_assoc($result)) {
4645
4646                                         $url = $line["content_url"];
4647                                         $ctype = $line["content_type"];
4648
4649                                         if (!$ctype) $ctype = __("unknown type");
4650
4651                                         $filename = substr($url, strrpos($url, "/")+1);
4652
4653                                         $entry = ""; 
4654                                         
4655                                         if (($ctype == __("audio/mpeg")) && 
4656                                                 (get_pref($link, "ENABLE_FLASH_PLAYER")) ) { 
4657                                         
4658                                                 $entry .= "<object type=\"application/x-shockwave-flash\" data=\"extras/button/musicplayer.swf?song_url=$url\" width=\"17\" height=\"17\"> <param name=\"movie\" value=\"extras/button/musicplayer.swf?song_url=$url\" /> </object> ";
4659
4660                                         }
4661
4662                                         $entry .= "<a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4663                                                 $filename . " (" . $ctype . ")" . "</a>";
4664
4665                                         array_push($entries_html, $entry);
4666
4667                                         $entry = array();
4668
4669                                         $entry["type"] = $ctype;
4670                                         $entry["filename"] = $filename;
4671                                         $entry["url"] = $url;
4672
4673                                         array_push($entries, $entry);
4674                                 }
4675
4676                                 print "<div class=\"postEnclosures\">";
4677
4678                                 if (!preg_match("/img/i", $article_content)) {
4679                                         foreach ($entries as $entry) {
4680                                                 if (preg_match("/image/", $entry["type"])) {
4681                                                         print "<p><img 
4682                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
4683                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"></p>";
4684                                                 }
4685                                         }
4686                                 }
4687
4688                                 print "<div class=\"postEnclosures\">";
4689
4690                                 if (db_num_rows($result) == 1) {
4691                                         print __("Attachment:") . " ";
4692                                 } else {
4693                                         print __("Attachments:") . " ";
4694                                 }
4695
4696                                 print join(", ", $entries_html);
4697
4698                                 print "</div>";
4699                         }
4700                 
4701                         print "</div>";
4702                         
4703                         print "</div>";
4704
4705                 }
4706
4707                 if (!$zoom_mode) { 
4708                         print "]]></article>"; 
4709                 } else {
4710                         print "
4711                                 <div style=\"text-align : center\">
4712                                 <input type=\"submit\" onclick=\"return window.close()\" 
4713                                 value=\"".__("Close this window")."\"></div>";
4714                         print "</body></html>";
4715
4716                 }
4717
4718         }
4719
4720         function outputHeadlinesList($link, $feed, $subop, $view_mode, $limit, $cat_view,
4721                                         $next_unread_feed, $offset, $vgr_last_feed = false, 
4722                                         $override_order = false) {
4723
4724                 $disable_cache = false;
4725
4726                 $timing_info = getmicrotime();
4727
4728                 $topmost_article_ids = array();
4729
4730                 if (!$offset) {
4731                         $offset = 0;
4732                 }
4733
4734                 if ($subop == "undefined") $subop = "";
4735
4736                 $subop_split = split(":", $subop);
4737
4738                 if ($subop == "CatchupSelected") {
4739                         $ids = split(",", db_escape_string($_GET["ids"]));
4740                         $cmode = sprintf("%d", $_GET["cmode"]);
4741
4742                         catchupArticlesById($link, $ids, $cmode);
4743                 }
4744
4745                 if ($subop == "ForceUpdate" && sprintf("%d", $feed) > 0) {
4746                         update_generic_feed($link, $feed, $cat_view, true);
4747                 }
4748
4749                 if ($subop == "MarkAllRead")  {
4750                         catchup_feed($link, $feed, $cat_view);
4751
4752                         if (get_pref($link, 'ON_CATCHUP_SHOW_NEXT_FEED')) {
4753                                 if ($next_unread_feed) {
4754                                         $feed = $next_unread_feed;
4755                                 }
4756                         }
4757                 }
4758
4759                 if ($subop_split[0] == "MarkAllReadGR")  {
4760                         catchup_feed($link, $subop_split[1], false);
4761                 }
4762
4763
4764                 if ($feed_id > 0) {             
4765                         $result = db_query($link,
4766                                 "SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");
4767                 
4768                         if (db_num_rows($result) == 0) {
4769                                 print "<div align='center'>".__('Feed not found.')."</div>";                            
4770                                 return;
4771                         }
4772                 }
4773
4774                 if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
4775
4776                         $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
4777                                 WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
4778
4779                         if (db_num_rows($result) == 1) {
4780                                 $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4781                         } else {
4782                                 $rtl_content = false;
4783                         }
4784         
4785                         if ($rtl_content) {
4786                                 $rtl_tag = "dir=\"RTL\"";
4787                         } else {
4788                                 $rtl_tag = "";
4789                         }
4790                 } else {
4791                         $rtl_tag = "";
4792                         $rtl_content = false;
4793                 }
4794
4795                 $script_dt_add = get_script_dt_add();
4796
4797                 /// START /////////////////////////////////////////////////////////////////////////////////
4798
4799                 $search = db_escape_string($_GET["query"]);
4800
4801                 if ($search) { 
4802                         $disable_cache = true;
4803                 }
4804
4805                 $search_mode = db_escape_string($_GET["search_mode"]);
4806                 $match_on = db_escape_string($_GET["match_on"]);
4807
4808                 if (!$match_on) {
4809                         $match_on = "both";
4810                 }
4811
4812                 $real_offset = $offset * $limit;
4813
4814                 if ($_GET["debug"]) $timing_info = print_checkpoint("H0", $timing_info);
4815
4816                 $qfh_ret = queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, 
4817                         $search, $search_mode, $match_on, $override_order, $real_offset);
4818
4819                 if ($_GET["debug"]) $timing_info = print_checkpoint("H1", $timing_info);
4820
4821                 $result = $qfh_ret[0];
4822                 $feed_title = $qfh_ret[1];
4823                 $feed_site_url = $qfh_ret[2];
4824                 $last_error = $qfh_ret[3];
4825
4826                 $vgroup_last_feed = $vgr_last_feed;
4827
4828                 if ($feed == -2) {
4829                         $feed_site_url = article_publish_url($link);
4830                 }
4831
4832                 /// STOP //////////////////////////////////////////////////////////////////////////////////
4833
4834                 if (!$offset) {
4835                         print "<div id=\"headlinesContainer\" $rtl_tag>";
4836
4837                         if (!$result) {
4838                                 print "<div align='center'>".__("Could not display feed (query failed). Please check label match syntax or local configuration.")."</div>";
4839                                 return;
4840                         }
4841
4842                         print_headline_subtoolbar($link, $feed_site_url, $feed_title,
4843                                 $feed, $cat_view, $search, $match_on, $search_mode);
4844
4845                         print "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
4846                 }
4847
4848                 $headlines_count = db_num_rows($result);
4849
4850                 if (db_num_rows($result) > 0) {
4851
4852 #                       print "\{$offset}";
4853
4854                         if (!get_pref($link, 'COMBINED_DISPLAY_MODE') && !$offset) {
4855                                 print "<table class=\"headlinesList\" id=\"headlinesList\" 
4856                                         cellspacing=\"0\">";
4857                         }
4858
4859                         $lnum = $limit*$offset;
4860
4861                         error_reporting (DEFAULT_ERROR_LEVEL);
4862         
4863                         $num_unread = 0;
4864                         $cur_feed_title = '';
4865
4866                         while ($line = db_fetch_assoc($result)) {
4867
4868                                 $class = ($lnum % 2) ? "even" : "odd";
4869         
4870                                 $id = $line["id"];
4871                                 $feed_id = $line["feed_id"];
4872
4873                                 $labels = get_article_labels($link, $id);
4874
4875                                 $labels_str = "<span id=\"HLLCTR-$id\">";
4876                                 $labels_str .= format_article_labels($labels, $id);
4877                                 $labels_str .= "</span>";
4878         
4879                                 if (count($topmost_article_ids) < 5) {
4880                                         array_push($topmost_article_ids, $id);
4881                                 }
4882
4883                                 if ($line["last_read"] == "" && 
4884                                                 ($line["unread"] != "t" && $line["unread"] != "1")) {
4885         
4886                                         $update_pic = "<img id='FUPDPIC-$id' src=\"images/updated.png\" 
4887                                                 alt=\"Updated\">";
4888                                 } else {
4889                                         $update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\" 
4890                                                 alt=\"Updated\">";
4891                                 }
4892         
4893                                 if ($line["unread"] == "t" || $line["unread"] == "1") {
4894                                         $class .= "Unread";
4895                                         ++$num_unread;
4896                                         $is_unread = true;
4897                                 } else {
4898                                         $is_unread = false;
4899                                 }
4900
4901                                 $is_ie = (strpos($_SESSION["client.userAgent"], "MSIE") !== false);
4902
4903                                 if ($is_ie) {
4904                                         $mark_img_ext = "gif";
4905                                 } else {
4906                                         $mark_img_ext = "png";
4907                                 }
4908
4909                                 if ($line["marked"] == "t" || $line["marked"] == "1") {
4910                                         $marked_pic = "<img id=\"FMPIC-$id\" src=\"images/mark_set.$mark_img_ext\" 
4911                                                 class=\"markedPic\"
4912                                                 alt=\"Unstar article\" onclick='javascript:tMark($id)'>";
4913                                 } else {
4914                                         $marked_pic = "<img id=\"FMPIC-$id\" src=\"images/mark_unset.$mark_img_ext\" 
4915                                                 class=\"markedPic\"
4916                                                 alt=\"Star article\" onclick='javascript:tMark($id)'>";
4917                                 }
4918
4919                                 if ($line["published"] == "t" || $line["published"] == "1") {
4920                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"images/pub_set.gif\" 
4921                                                 class=\"markedPic\"
4922                                                 alt=\"Unpublish article\" onclick='javascript:tPub($id)'>";
4923                                 } else {
4924                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"images/pub_unset.gif\" 
4925                                                 class=\"markedPic\"
4926                                                 alt=\"Publish article\" onclick='javascript:tPub($id)'>";
4927                                 }
4928
4929 #                               $content_link = "<a target=\"_blank\" href=\"".$line["link"]."\">" .
4930 #                                       $line["title"] . "</a>";
4931
4932 #                               $content_link = "<a 
4933 #                                       href=\"" . htmlspecialchars($line["link"]) . "\"
4934 #                                       onclick=\"view($id,$feed_id);\">" .
4935 #                                       $line["title"] . "</a>";
4936
4937 #                               $content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
4938 #                                       $line["title"] . "</a>";
4939
4940                                 if (get_pref($link, 'HEADLINES_SMART_DATE')) {
4941                                         $updated_fmt = smart_date_time(strtotime($line["updated_noms"]));
4942                                 } else {
4943                                         $short_date = get_pref($link, 'SHORT_DATE_FORMAT');
4944                                         $updated_fmt = date($short_date, strtotime($line["updated_noms"]));
4945                                 }                               
4946
4947                                 if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
4948                                         $content_preview = truncate_string(strip_tags($line["content_preview"]), 
4949                                                 100);
4950                                 }
4951
4952                                 $score = $line["score"];
4953
4954                                 $score_pic = get_score_pic($score);
4955
4956 /*                              $score_title = __("(Click to change)");
4957                                 $score_pic = "<img class='hlScorePic' src=\"images/$score_pic\" 
4958                                         onclick=\"adjustArticleScore($id, $score)\" title=\"$score $score_title\">"; */
4959
4960                                 $score_pic = "<img class='hlScorePic' src=\"images/$score_pic\" 
4961                                         title=\"$score\">";
4962
4963                                 if ($score > 500) {
4964                                         $hlc_suffix = "H";
4965                                 } else if ($score < -100) {
4966                                         $hlc_suffix = "L";
4967                                 } else {
4968                                         $hlc_suffix = "";
4969                                 }
4970
4971                                 $entry_author = $line["author"];
4972
4973                                 if ($entry_author) {
4974                                         $entry_author = " - $entry_author";
4975                                 }
4976
4977                                 $has_feed_icon = feed_has_icon($feed_id);
4978
4979                                 if ($has_feed_icon) {
4980                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
4981                                 } else {
4982                                         //$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
4983                                         $feed_icon_img = "";
4984                                 }
4985
4986                                 if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
4987
4988                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED')) {
4989                                                 if ($feed_id != $vgroup_last_feed && $line["feed_title"]) {
4990
4991                                                         $cur_feed_title = $line["feed_title"];
4992                                                         $vgroup_last_feed = $feed_id;
4993
4994                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
4995
4996                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>mark as read</a>)";
4997
4998                                                         print "<tr class='feedTitle'><td colspan='7'>".
4999                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5000                                                                 "<a href=\"javascript:viewfeed($feed_id, '', false)\">".
5001                                                                 $line["feed_title"]."</a> $vf_catchup_link</td></tr>";
5002                                                 }
5003                                         }
5004
5005                                         $mouseover_attrs = "onmouseover='postMouseIn($id)' 
5006                                                 onmouseout='postMouseOut($id)'";
5007
5008                                         print "<tr class='$class' id='RROW-$id' $mouseover_attrs>";
5009                 
5010                                         print "<td class='hlUpdPic'>$update_pic</td>";
5011                 
5012                                         print "<td class='hlSelectRow'>
5013                                                 <input type=\"checkbox\" onclick=\"tSR(this)\"
5014                                                         id=\"RCHK-$id\">
5015                                                 </td>";
5016                 
5017                                         print "<td class='hlMarkedPic'>$marked_pic</td>";
5018                                         print "<td class='hlMarkedPic'>$published_pic</td>";
5019
5020 #                                       if ($line["feed_title"]) {                      
5021 #                                               print "<td class='hlContent'>$content_link</td>";
5022 #                                               print "<td class='hlFeed'>
5023 #                                                       <a href=\"javascript:viewfeed($feed_id, '', false)\">".
5024 #                                                               truncate_string($line["feed_title"],30)."</a>&nbsp;</td>";
5025 #                                       } else {                        
5026
5027                                         print "<td onclick='view($id,$feed_id)' class='hlContent$hlc_suffix' valign='middle'>";
5028
5029                                         print "<a id=\"RTITLE-$id\" 
5030                                                 href=\"" . htmlspecialchars($line["link"]) . "\"
5031                                                 onclick=\"return view($id,$feed_id);\">" .
5032                                                 $line["title"];
5033
5034                                         if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5035                                                 if ($content_preview) {
5036                                                         print "<span class=\"contentPreview\"> - $content_preview</span>";
5037                                                 }
5038                                         }
5039
5040                                         print "</a>";
5041
5042                                         print $labels_str;
5043
5044 #                                                       <a href=\"javascript:viewfeed($feed_id, '', false)\">".
5045 #                                                       $line["feed_title"]."</a>       
5046
5047                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5048                                                 if ($line["feed_title"]) {                      
5049                                                         print "<span class=\"hlFeed\">
5050                                                                 (<a href=\"javascript:viewfeed($feed_id, '', false)\">".
5051                                                                 $line["feed_title"]."</a>)
5052                                                         </span>";
5053                                                 }
5054                                         }
5055                                         print "</td>";
5056
5057 #                                       }
5058                                         
5059                                         print "<td class=\"hlUpdated\" onclick='view($id,$feed_id)'><nobr>$updated_fmt&nbsp;</nobr></td>";
5060
5061                                         print "<td class='hlMarkedPic'>$score_pic</td>";
5062
5063                                         if ($line["feed_title"] && !get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5064                                                 print "<td onclick=\"viewfeed($feed_id)\" class=\"hlFeedIcon\">$feed_icon_img</td>";
5065                                         }
5066
5067                                         print "</tr>";
5068
5069                                 } else {
5070
5071                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED') && $line["feed_title"]) {
5072                                                 if ($feed_id != $vgroup_last_feed) {
5073
5074                                                         $cur_feed_title = $line["feed_title"];
5075                                                         $vgroup_last_feed = $feed_id;
5076
5077                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5078
5079                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>mark as read</a>)";
5080
5081                                                         $has_feed_icon = feed_has_icon($feed_id);
5082
5083                                                         if ($has_feed_icon) {
5084                                                                 $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5085                                                         } else {
5086                                                                 //$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
5087                                                         }
5088
5089                                                         print "<div class='cdmFeedTitle'>".
5090                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5091                                                                 "<a href=\"javascript:viewfeed($feed_id, '', false)\">".
5092                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5093                                                 }
5094                                         }
5095
5096                                         if ($is_unread) {
5097                                                 $add_class = "Unread";
5098                                         } else {
5099                                                 $add_class = "";
5100                                         }       
5101
5102                                         $expand_cdm = get_pref($link, 'CDM_EXPANDED');
5103                                         $show_excerpt = false;
5104
5105                                         if ($expand_cdm && $score >= -100) {
5106                                                 $cdm_cstyle = "";
5107                                                 $show_excerpt = false;
5108                                         } else {
5109                                                 $cdm_cstyle = "style=\"display : none\"";
5110                                                 $show_excerpt = true;
5111                                         }
5112
5113                                         $mouseover_attrs = "onmouseover='postMouseIn($id)' 
5114                                                 onmouseout='postMouseOut($id)'";
5115
5116                                         print "<div class=\"cdmArticle$add_class\" 
5117                                                 id=\"RROW-$id\"                                         
5118                                                 $mouseover_attrs'>";
5119
5120                                         print "<div class=\"cdmHeader\">";
5121
5122                                         if (!get_pref($link, "VFEED_GROUP_BY_FEED") || !$line["feed_title"]) {
5123                                                 $cdm_feed_icon = "<span style=\"cursor : pointer\" onclick=\"viewfeed($feed_id)\">$feed_icon_img</span>";
5124                                         }
5125
5126                                         print "<div class=\"articleUpdated\">$updated_fmt $score_pic $cdm_feed_icon
5127                                                 </div>";
5128
5129                                         print "<span id=\"RTITLE-$id\" class=\"titleWrap$hlc_suffix\"><a class=\"title\" 
5130                                                 onclick=\"javascript:toggleUnread($id, 0)\"
5131                                                 target=\"_blank\" href=\"".$line["link"]."\">".$line["title"]."</a>
5132                                                 ";
5133
5134                                         print $entry_author;
5135
5136 /*                                      if (!$expand_cdm || $score < -100) {
5137                                                 print "&nbsp;<a id=\"CICH-$id\" 
5138                                                         href=\"javascript:cdmExpandArticle($id)\">
5139                                                         (".__('Show article').")</a>";
5140                                         } */
5141
5142                                         print $labels_str;
5143
5144                                         if (!get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5145                                                 if ($line["feed_title"]) {      
5146                                                         print "&nbsp;(<a href='javascript:viewfeed($feed_id)'>".$line["feed_title"]."</a>)";
5147                                                 }
5148                                         }
5149
5150                                         print "</span></div>";
5151
5152                                         if (get_pref($link, 'OPEN_LINKS_IN_NEW_WINDOW')) {
5153                                                 $line["content_preview"] = preg_replace("/href=/i", 
5154                                                         "target=\"_blank\" href=", $line["content_preview"]);
5155                                         }
5156
5157                                         if ($show_excerpt) {
5158                                                 print "<div class=\"cdmExcerpt\" id=\"CEXC-$id\"
5159                                                         onclick=\"cdmExpandArticle($id)\"
5160                                                         title=\"".__('Click to expand article')."\">";
5161                                                 print truncate_string(strip_tags($line["content_preview"]), 100);
5162                                                 print "</div>";
5163                                         }
5164         
5165                                         print "<div class=\"cdmContent\" 
5166                                                 onclick=\"cdmClicked($id)\"
5167                                                 id=\"CICD-$id\" $cdm_cstyle>";
5168
5169 //                                      print "<div class=\"cdmInnerContent\" id=\"CICD-$id\" $cdm_cstyle>";
5170
5171                                         print sanitize_rss($link, $line["content_preview"]);
5172                                         $article_content = $line["content_preview"];
5173
5174                                         $e_result = db_query($link, "SELECT * FROM ttrss_enclosures WHERE
5175                                                 post_id = '$id' AND content_url != ''");
5176
5177                                         if (db_num_rows($e_result) > 0) {
5178
5179                                 $entries_html = array();
5180                                 $entries = array();
5181
5182                                 while ($e_line = db_fetch_assoc($e_result)) {
5183
5184                                         $url = $e_line["content_url"];
5185                                         $ctype = $e_line["content_type"];
5186                                         if (!$ctype) $ctype = __("unknown type");
5187
5188                                         $filename = substr($url, strrpos($url, "/")+1);
5189
5190                                         $entry = ""; 
5191                                         
5192                                         if (($ctype == __("audio/mpeg")) && 
5193                                                 (get_pref($link, "ENABLE_FLASH_PLAYER")) ) { 
5194                                                 
5195                                                 $entry .= "<object type=\"application/x-shockwave-flash\" data=\"extras/button/musicplayer.swf?song_url=$url\" width=\"17\" height=\"17\"> <param name=\"movie\" value=\"extras/button/musicplayer.swf?song_url=$url\" /> </object> "; 
5196                                         
5197                                         }
5198
5199                                         $entry .= "<a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
5200                                                 $filename . " (" . $ctype . ")" . "</a>";
5201
5202                                         array_push($entries_html, $entry);
5203
5204                                         $entry = array();
5205
5206                                         $entry["type"] = $ctype;
5207                                         $entry["filename"] = $filename;
5208                                         $entry["url"] = $url;
5209
5210                                         array_push($entries, $entry);
5211                                 }
5212
5213                                 if (!preg_match("/img/i", $article_content)) {
5214                                         foreach ($entries as $entry) {
5215                                                 if (preg_match("/image/", $entry["type"])) {
5216                                                         print "<p><img 
5217                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
5218                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"></p>";
5219                                                 }
5220                                         }
5221                                 }
5222
5223                                 print "<div class=\"cdmEnclosures\">";
5224
5225                                 if (db_num_rows($e_result) == 1) {
5226                                         print __("Attachment:") . " ";
5227                                 } else {
5228                                         print __("Attachments:") . " ";
5229                                 }
5230
5231                                 print join(", ", $entries_html);
5232
5233                                 print "</div>";
5234                         }
5235
5236
5237                                         print "<br clear='both'>";
5238 //                                      print "</div>";
5239
5240 /*                                      if (!$expand_cdm) {
5241                                                 print "<a id=\"CICH-$id\" 
5242                                                         href=\"javascript:cdmExpandArticle($id)\">
5243                                                         Show article</a>";
5244                                         } */
5245
5246                                         print "</div>";
5247
5248                                         print "<div class=\"cdmFooter\"><span class='s0'>";
5249
5250                                         /* print "<div class=\"markedPic\">Star it: $marked_pic</div>"; */
5251
5252                                         print __("Select:").
5253                                                         " <input type=\"checkbox\" onclick=\"toggleSelectRowById(this, 
5254                                                         'RROW-$id')\" class=\"feedCheckBox\" id=\"RCHK-$id\">";
5255
5256                                         print "</span><span class='s1'>$marked_pic</span> ";
5257                                         print "<span class='s1'>$published_pic</span> ";
5258                                         print "<span class='s1'><img src=\"images/art-zoom.png\" class='tagsPic' 
5259                                                 onclick=\"zoomToArticle($id)\"
5260                                                 style=\"cursor : pointer\"
5261                                                 alt='Zoom' 
5262                                                 title='".__('Show article summary in new window')."'></span>";
5263
5264                                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
5265
5266 //                                      print "<img src='images/tag.png' class='markedPic'>";
5267
5268                                         print "<span class='s1'>
5269                                                 <img class='tagsPic' src='images/tag.png' alt='Tags' title='Tags'>
5270                                                 <span id=\"ATSTR-$id\">$tags_str</span>
5271                                                 <a title=\"".__('Edit tags for this article')."\" 
5272                                                 href=\"javascript:editArticleTags($id, $feed_id, true)\">(+)</a>";
5273
5274                                         print "</span>";
5275
5276                                         print "<span class='s2'>Toggle: <a class=\"cdmToggleLink\"
5277                                                         href=\"javascript:toggleUnread($id)\">
5278                                                         Unread</a></span>";
5279
5280                                         print "</div>";
5281                                         print "</div>"; 
5282
5283                                 }                               
5284         
5285                                 ++$lnum;
5286                         }
5287
5288                         if (!get_pref($link, 'COMBINED_DISPLAY_MODE') && !$offset) {                    
5289                                 print "</table>";
5290                         }
5291
5292                 } else {
5293                         $message = "";
5294
5295                         switch ($view_mode) {
5296                                 case "unread":
5297                                         $message = __("No unread articles found to display.");
5298                                         break;
5299                                 case "updated":
5300                                         $message = __("No updated articles found to display.");
5301                                         break;
5302                                 case "marked":
5303                                         $message = __("No starred articles found to display.");
5304                                         break;
5305                                 default:
5306                                         if ($feed < -10) {
5307                                                 $message = __("No articles found to display. You can assign articles to labels manually (see the Actions menu above) or use a filter.");
5308                                         } else {
5309                                                 $message = __("No articles found to display.");
5310                                         }
5311                         }
5312
5313                         if (!$offset) print "<div class='whiteBox'>$message</div>";
5314                 }
5315
5316                 if (!$offset) {
5317                         print "</div>";
5318                         print "</div>";
5319                 }
5320
5321                 return array($topmost_article_ids, $headlines_count, $feed, $disable_cache, $vgroup_last_feed);
5322         }
5323
5324 // from here: http://www.roscripts.com/Create_tag_cloud-71.html
5325
5326         function printTagCloud($link) {
5327
5328                 $query = "SELECT tag_name, COUNT(post_int_id) AS count 
5329                         FROM ttrss_tags WHERE owner_uid = ".$_SESSION["uid"]." 
5330                         GROUP BY tag_name ORDER BY count DESC LIMIT 50";
5331
5332                 $result = db_query($link, $query);
5333
5334                 $tags = array();
5335
5336                 while ($line = db_fetch_assoc($result)) {
5337                         $tags[$line["tag_name"]] = $line["count"];
5338                 }
5339
5340                 ksort($tags);
5341
5342                 $max_size = 32; // max font size in pixels
5343                 $min_size = 11; // min font size in pixels
5344                    
5345                 // largest and smallest array values
5346                 $max_qty = max(array_values($tags));
5347                 $min_qty = min(array_values($tags));
5348                    
5349                 // find the range of values
5350                 $spread = $max_qty - $min_qty;
5351                 if ($spread == 0) { // we don't want to divide by zero
5352                                 $spread = 1;
5353                 }
5354                    
5355                 // set the font-size increment
5356                 $step = ($max_size - $min_size) / ($spread);
5357                    
5358                 // loop through the tag array
5359                 foreach ($tags as $key => $value) {
5360                         // calculate font-size
5361                         // find the $value in excess of $min_qty
5362                         // multiply by the font-size increment ($size)
5363                         // and add the $min_size set above
5364                         $size = round($min_size + (($value - $min_qty) * $step));
5365
5366                         $key_escaped = str_replace("'", "\\'", $key);
5367
5368                         echo "<a href=\"javascript:viewfeed('$key_escaped') \" style=\"font-size: " . 
5369                                 $size . "px\" title=\"$value articles tagged with " . 
5370                                 $key . '">' . $key . '</a> ';
5371                 }
5372         }
5373
5374         function print_checkpoint($n, $s) {
5375                 $ts = getmicrotime();   
5376                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
5377                 return $ts;
5378         }
5379
5380         function sanitize_tag($tag) {
5381                 $tag = trim($tag);
5382
5383                 $tag = mb_strtolower($tag, 'utf-8');
5384
5385                 $tag = preg_replace('/[\"\+\>\<]/', "", $tag);  
5386
5387 //              $tag = str_replace('"', "", $tag);      
5388 //              $tag = str_replace("+", " ", $tag);     
5389                 $tag = str_replace("technorati tag: ", "", $tag);
5390
5391                 return $tag;
5392         }
5393
5394         function generate_publish_key() {
5395                 return sha1(uniqid(rand(), true));
5396         }
5397
5398         function article_publish_url($link) {
5399
5400                 $url_path = "";
5401                 
5402
5403                 if ($_SERVER['HTTPS'] != "on") {
5404                         $url_path = "http://";
5405                 } else {
5406                         $url_path = "https://";
5407                 }
5408
5409                 $url_path .= $_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']);
5410                 $url_path .= "/backend.php?op=publish&key=" . get_pref($link, "_PREFS_PUBLISH_KEY");
5411
5412                 return $url_path;
5413         }
5414
5415         /**
5416          * Purge a feed contents, marked articles excepted.
5417          * 
5418          * @param mixed $link The database connection.
5419          * @param integer $id The id of the feed to purge.
5420          * @return void
5421          */
5422         function clear_feed_articles($link, $id) {
5423                 $result = db_query($link, "DELETE FROM ttrss_user_entries
5424                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5425
5426                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE 
5427                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
5428
5429                 ccache_update($link, $id, $_SESSION['uid']);
5430         } // function clear_feed_articles
5431
5432         /**
5433          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
5434          *
5435          * @return string The Mozilla Firefox feed adding URL.
5436          */
5437         function add_feed_url() {
5438                 $url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
5439                 $url_path .= "?op=pref-feeds&quiet=1&subop=add&feed_url=%s";
5440                 return $url_path;
5441         } // function add_feed_url
5442
5443         /**
5444          * Encrypt a password in SHA1.
5445          * 
5446          * @param string $pass The password to encrypt.
5447          * @param string $login A optionnal login.
5448          * @return string The encrypted password.
5449          */
5450         function encrypt_password($pass, $login = '') {
5451                 if ($login) {
5452                         return "SHA1X:" . sha1("$login:$pass");
5453                 } else {
5454                         return "SHA1:" . sha1($pass);
5455                 }
5456         } // function encrypt_password
5457
5458         /**
5459          * Update a feed batch.
5460          * Used by daemons to update n feeds by run.
5461          * Only update feed needing a update, and not being processed
5462          * by another process.
5463          * 
5464          * @param mixed $link Database link
5465          * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
5466          * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
5467          * @param boolean $debug Set to false to disable debug output. Default to true.
5468          * @return void
5469          */
5470         function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
5471                 // Process all other feeds using last_updated and interval parameters
5472
5473                 // Test if the user has loggued in recently. If not, it does not update its feeds.
5474                 if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
5475                         if (DB_TYPE == "pgsql") {
5476                                 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
5477                         } else {
5478                                 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
5479                         }                       
5480                 } else {
5481                         $login_thresh_qpart = "";
5482                 }
5483
5484                 // Test if the feed need a update (update interval exceded).
5485                 if (DB_TYPE == "pgsql") {
5486                         $update_limit_qpart = "AND ((
5487                                         ttrss_feeds.update_interval = 0
5488                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
5489                                 ) OR (
5490                                         ttrss_feeds.update_interval > 0
5491                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
5492                                 ) OR ttrss_feeds.last_updated IS NULL)";
5493                 } else {
5494                         $update_limit_qpart = "AND ((
5495                                         ttrss_feeds.update_interval = 0
5496                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
5497                                 ) OR (
5498                                         ttrss_feeds.update_interval > 0
5499                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
5500                                 ) OR ttrss_feeds.last_updated IS NULL)";
5501                 }
5502
5503                 // Test if feed is currently being updated by another process.
5504                 if (DB_TYPE == "pgsql") {
5505                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
5506                 } else {
5507                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
5508                 }
5509
5510                 // Test if there is a limit to number of updated feeds
5511                 $query_limit = "";
5512                 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
5513
5514                 $random_qpart = sql_random_function();
5515
5516                 // We search for feed needing update.
5517                 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
5518                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
5519                                 ttrss_feeds.update_interval 
5520                         FROM 
5521                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
5522                         WHERE
5523                                 ttrss_feeds.owner_uid = ttrss_users.id
5524                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
5525                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
5526                                 $login_thresh_qpart $update_limit_qpart
5527                          $updstart_thresh_qpart
5528                         ORDER BY $random_qpart $query_limit");
5529
5530                 $user_prefs_cache = array();
5531
5532                 if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
5533
5534                 // Here is a little cache magic in order to minimize risk of double feed updates.
5535                 $feeds_to_update = array();
5536                 while ($line = db_fetch_assoc($result)) {
5537                         $feeds_to_update[$line['id']] = $line;
5538                 }
5539
5540                 // We update the feed last update started date before anything else.
5541                 // There is no lag due to feed contents downloads
5542                 // It prevent an other process to update the same feed.
5543                 $feed_ids = array_keys($feeds_to_update);
5544                 if($feed_ids) {
5545                         db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
5546                                 WHERE id IN (%s)", implode(',', $feed_ids)));
5547                 }
5548
5549                 // For each feed, we call the feed update function.
5550                 while ($line = array_pop($feeds_to_update)) {
5551
5552                         if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
5553
5554                         // We setup a alarm to alert if the feed take more than 300s to update.
5555                         // => HANG alarm.
5556                         if(!$from_http && function_exists('pcntl_alarm')) pcntl_alarm(300);
5557                         update_rss_feed($link, $line["feed_url"], $line["id"], true);
5558                         // Cancel the alarm (the update went well)
5559                         if(!$from_http && function_exists('pcntl_alarm')) pcntl_alarm(0);
5560
5561                         sleep(1); // prevent flood (FIXME make this an option?)
5562                 }
5563
5564                 // Send feed digests by email if needed.
5565                 if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
5566
5567                 purge_orphans($link);
5568
5569         } // function update_daemon_common
5570
5571         function sanitize_article_content($text) {
5572                 # we don't support CDATA sections in articles, they break our own escaping
5573                 $text = preg_replace("/\[\[CDATA/", "", $text);
5574                 $text = preg_replace("/\]\]\>/", "", $text);
5575                 return $text;
5576         }
5577
5578         function load_filters($link, $feed, $owner_uid, $action_id = false) {
5579                 $filters = array();
5580
5581                 if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
5582
5583                 $result = db_query($link, "SELECT reg_exp,
5584                         ttrss_filter_types.name AS name,
5585                         ttrss_filter_actions.name AS action,
5586                         inverse,
5587                         action_param,
5588                         filter_param
5589                         FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE                                        
5590                                 enabled = true AND
5591                                 $ftype_query_part
5592                                 owner_uid = $owner_uid AND
5593                                 ttrss_filter_types.id = filter_type AND
5594                                 ttrss_filter_actions.id = action_id AND
5595                                 (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
5596
5597                 while ($line = db_fetch_assoc($result)) {
5598                         if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
5599                                 $filter["reg_exp"] = $line["reg_exp"];
5600                                 $filter["action"] = $line["action"];
5601                                 $filter["action_param"] = $line["action_param"];
5602                                 $filter["filter_param"] = $line["filter_param"];
5603                                 $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
5604                         
5605                                 array_push($filters[$line["name"]], $filter);
5606                         }
5607
5608                 return $filters;
5609         }
5610
5611         function get_score_pic($score) {
5612                 if ($score > 100) { 
5613                         return "score_high.png"; 
5614                 } else if ($score > 0) { 
5615                         return "score_half_high.png"; 
5616                 } else if ($score < -100) {
5617                         return "score_low.png"; 
5618                 } else if ($score < 0) {
5619                         return "score_half_low.png"; 
5620                 } else { 
5621                         return "score_neutral.png"; 
5622                 }
5623         }
5624
5625         function rounded_table_start($classname, $header = "&nbsp;") {
5626                 print "<table width='100%' class='$classname' cellspacing='0' cellpadding='0'>";
5627                 print "<tr><td class='c1'>&nbsp;</td><td class='top'>$header</td><td class='c2'>&nbsp;</td></tr>";
5628                 print "<tr><td class='left'>&nbsp;</td><td class='content'>";
5629         }
5630
5631         function rounded_table_end($footer = "&nbsp;") {
5632                 print "</td><td class='right'>&nbsp;</td></tr>";
5633                 print "<tr><td class='c4'>&nbsp;</td><td class='bottom'>$footer</td><td class='c3'>&nbsp;</td></tr>";
5634                 print "</table>";
5635         }
5636
5637         function feed_has_icon($id) {
5638                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
5639         }
5640
5641         function init_connection($link) {
5642                 if (DB_TYPE == "pgsql") {
5643                         pg_query($link, "set client_encoding = 'UTF-8'");
5644                         pg_set_client_encoding("UNICODE");
5645                         pg_query($link, "set datestyle = 'ISO, european'");
5646                 } else {
5647                         if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
5648                                 db_query($link, "SET NAMES " . MYSQL_CHARSET);
5649         //                      db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
5650                         }
5651                 }
5652         }
5653
5654         function update_feedbrowser_cache($link) {
5655
5656                 $result = db_query($link, "SELECT feed_url,title, COUNT(id) AS subscribers
5657                         FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf 
5658                                 WHERE tf.feed_url = ttrss_feeds.feed_url 
5659                                 AND (private IS true OR feed_url LIKE '%:%@%/%')) 
5660                                 GROUP BY feed_url, title ORDER BY subscribers DESC LIMIT 1000");
5661         
5662                 db_query($link, "BEGIN");
5663         
5664                 db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
5665         
5666                 $count = 0;
5667         
5668                 while ($line = db_fetch_assoc($result)) {
5669                         $subscribers = db_escape_string($line["subscribers"]);
5670                         $feed_url = db_escape_string($line["feed_url"]);
5671                         $title = db_escape_string($line["title"]);
5672
5673                         $tmp_result = db_query($link, "SELECT subscribers FROM
5674                                 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
5675
5676                         if (db_num_rows($tmp_result) == 0) {
5677
5678                                 db_query($link, "INSERT INTO ttrss_feedbrowser_cache 
5679                                         (feed_url, title, subscribers) VALUES ('$feed_url', 
5680                                                 '$title', '$subscribers')");
5681
5682                                 ++$count;
5683
5684                         }
5685         
5686                 }
5687         
5688                 db_query($link, "COMMIT");
5689
5690                 return $count;
5691
5692         }
5693
5694         function ccache_zero($link, $feed_id, $owner_uid) {
5695                 db_query($link, "UPDATE ttrss_counters_cache SET
5696                         value = 0, updated = NOW() WHERE
5697                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5698         }
5699
5700         function ccache_zero_all($link, $owner_uid) {
5701                 db_query($link, "UPDATE ttrss_counters_cache SET
5702                         value = 0 WHERE owner_uid = '$owner_uid'");
5703
5704                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
5705                         value = 0 WHERE owner_uid = '$owner_uid'");
5706         }
5707
5708         function ccache_update_all($link, $owner_uid) {
5709
5710                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
5711
5712                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
5713                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5714
5715                         while ($line = db_fetch_assoc($result)) {
5716                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
5717                         }
5718
5719                         /* We have to manually include category 0 */
5720
5721                         ccache_update($link, 0, $owner_uid, true);
5722
5723                 } else {
5724                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
5725                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5726
5727                         while ($line = db_fetch_assoc($result)) {
5728                                 print ccache_update($link, $line["feed_id"], $owner_uid);
5729
5730                         }
5731
5732                 }
5733         }
5734
5735         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false, 
5736                 $no_update = false) {
5737
5738                 if (!is_numeric($feed_id)) return;
5739
5740                 if (!$is_cat) {
5741                         $table = "ttrss_counters_cache";
5742                 } else {
5743                         $table = "ttrss_cat_counters_cache";
5744                 }
5745
5746                 if (DB_TYPE == "pgsql") {
5747                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
5748                 } else if (DB_TYPE == "mysql") {
5749                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
5750                 }
5751
5752                 $result = db_query($link, "SELECT value FROM $table
5753                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' 
5754                         LIMIT 1");
5755
5756                 if (db_num_rows($result) == 1) {
5757                         return db_fetch_result($result, 0, "value");
5758                 } else {
5759                         if ($no_update) {
5760                                 return -1;
5761                         } else {
5762                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
5763                         }
5764                 }
5765
5766         }
5767
5768         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false, 
5769                 $update_pcat = true) {
5770
5771                 if (!is_numeric($feed_id)) return;
5772
5773                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
5774
5775                 /* When updating a label, all we need to do is recalculate feed counters
5776                  * because labels are not cached */
5777
5778                 if ($feed_id < 0) {
5779                         ccache_update_all($link, $owner_uid);
5780                         return;
5781                 }
5782
5783                 if (!$is_cat) {
5784                         $table = "ttrss_counters_cache";
5785                 } else {
5786                         $table = "ttrss_cat_counters_cache";
5787                 }
5788
5789                 if ($is_cat && $feed_id >= 0) {
5790                         if ($feed_id != 0) {
5791                                 $cat_qpart = "cat_id = '$feed_id'";
5792                         } else {
5793                                 $cat_qpart = "cat_id IS NULL";
5794                         }
5795
5796                         /* Recalculate counters for child feeds */
5797
5798                         $result = db_query($link, "SELECT id FROM ttrss_feeds
5799                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
5800
5801                         while ($line = db_fetch_assoc($result)) {
5802                                 ccache_update($link, $line["id"], $owner_uid, false, false);
5803                         }
5804
5805                         $result = db_query($link, "SELECT SUM(value) AS sv 
5806                                 FROM ttrss_counters_cache, ttrss_feeds 
5807                                 WHERE id = feed_id AND $cat_qpart AND 
5808                                 ttrss_feeds.owner_uid = '$owner_uid'");
5809
5810                         $unread = (int) db_fetch_result($result, 0, "sv");
5811
5812                 } else {
5813                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
5814                 }
5815
5816                 $result = db_query($link, "SELECT feed_id FROM $table
5817                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
5818
5819                 if (db_num_rows($result) == 1) {
5820                         db_query($link, "UPDATE $table SET
5821                                 value = '$unread', updated = NOW() WHERE
5822                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5823
5824                 } else {
5825                         db_query($link, "INSERT INTO $table
5826                                 (feed_id, value, owner_uid, updated) 
5827                                 VALUES 
5828                                 ($feed_id, $unread, $owner_uid, NOW())");
5829                 }
5830
5831                 if ($feed_id > 0 && $prev_unread != $unread) {
5832
5833                         if (!$is_cat) {
5834
5835                                 /* Update parent category */
5836
5837                                 if ($update_pcat) {
5838
5839                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
5840                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
5841
5842                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
5843
5844                                         ccache_update($link, $cat_id, $owner_uid, true);
5845
5846                                 }
5847                         }
5848                 } else if ($feed_id < 0) {
5849                         ccache_update_all($link, $owner_uid);
5850                 }
5851
5852                 return $unread;
5853         }
5854
5855         function label_find_id($link, $label, $owner_uid) {
5856                 $result = db_query($link, 
5857                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label' 
5858                                 AND owner_uid = '$owner_uid' LIMIT 1");
5859
5860                 if (db_num_rows($result) == 1) {
5861                         return db_fetch_result($result, 0, "id");
5862                 } else {
5863                         return 0;
5864                 }
5865         }
5866
5867         function get_article_labels($link, $id) {
5868                 $result = db_query($link, 
5869                         "SELECT DISTINCT label_id,caption,fg_color,bg_color 
5870                                 FROM ttrss_labels2, ttrss_user_labels2 
5871                         WHERE id = label_id 
5872                                 AND article_id = '$id' 
5873                                 AND owner_uid = ".$_SESSION["uid"] . "
5874                         ORDER BY caption");
5875
5876                 $rv = array();
5877
5878                 while ($line = db_fetch_assoc($result)) {
5879                         $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
5880                                 $line["bg_color"]);
5881                         array_push($rv, $rk);
5882                 }
5883
5884                 return $rv;
5885         }
5886
5887
5888         function label_find_caption($link, $label, $owner_uid) {
5889                 $result = db_query($link, 
5890                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label' 
5891                                 AND owner_uid = '$owner_uid' LIMIT 1");
5892
5893                 if (db_num_rows($result) == 1) {
5894                         return db_fetch_result($result, 0, "caption");
5895                 } else {
5896                         return "";
5897                 }
5898         }
5899
5900         function label_remove_article($link, $id, $label, $owner_uid) {
5901
5902                 $label_id = label_find_id($link, $label, $owner_uid);
5903
5904                 if (!$label_id) return;
5905
5906                 $result = db_query($link, 
5907                         "DELETE FROM ttrss_user_labels2
5908                         WHERE 
5909                                 label_id = '$label_id' AND
5910                                 article_id = '$id'");
5911         }
5912
5913         function label_add_article($link, $id, $label, $owner_uid) {
5914
5915                 $label_id = label_find_id($link, $label, $owner_uid);
5916
5917                 if (!$label_id) return;
5918
5919                 $result = db_query($link, 
5920                         "SELECT 
5921                                 article_id FROM ttrss_labels2, ttrss_user_labels2
5922                         WHERE 
5923                                 label_id = id AND 
5924                                 label_id = '$label_id' AND
5925                                 article_id = '$id' AND owner_uid = '$owner_uid'
5926                         LIMIT 1");
5927
5928                 if (db_num_rows($result) == 0) {
5929                         db_query($link, "INSERT INTO ttrss_user_labels2 
5930                                 (label_id, article_id) VALUES ('$label_id', '$id')");
5931                 }
5932         }
5933
5934         function label_remove($link, $id, $owner_uid) {
5935
5936                 db_query($link, "BEGIN");
5937
5938                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
5939                         WHERE id = '$id'");
5940
5941                 $caption = db_fetch_result($result, 0, "caption");
5942
5943                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
5944                         AND owner_uid = " . $_SESSION["uid"]);
5945
5946                 if (db_affected_rows($link, $result) != 0 && $caption) {
5947
5948                         /* Disable filters that reference label being removed */
5949         
5950                         db_query($link, "UPDATE ttrss_filters SET
5951                                 enabled = false WHERE action_param = '$caption'
5952                                         AND action_id = 7
5953                                         AND owner_uid = " . $_SESSION["uid"]);
5954                         }
5955
5956                 db_query($link, "COMMIT");
5957         }
5958
5959         function label_create($link, $caption) {
5960
5961                 db_query($link, "BEGIN");
5962
5963                 $result = false;
5964
5965                 $result = db_query($link, "SELECT id FROM ttrss_labels2
5966                         WHERE caption = '$caption' AND owner_uid =  ". $_SESSION["uid"]);
5967
5968                 if (db_num_rows($result) == 0) {
5969                         $result = db_query($link,
5970                                 "INSERT INTO ttrss_labels2 (caption,owner_uid) 
5971                                         VALUES ('$caption', '".$_SESSION["uid"]."')");
5972
5973                         $result = db_affected_rows($link, $result) != 0;
5974                 }
5975
5976                 db_query($link, "COMMIT");
5977
5978                 return $result;
5979         }
5980
5981         function print_labels_headlines_dropdown($link, $feed_id) {
5982                 print "<li onclick=\"javascript:addLabel()\">
5983                         &nbsp;&nbsp;".__("Create label...")."</li>";
5984
5985                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2 WHERE
5986                         owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
5987
5988                 while ($line = db_fetch_assoc($result)) {
5989
5990                         $label_id = $line["id"];
5991                         $label_caption = $line["caption"];
5992
5993                         if ($feed_id < -10 && $feed_id == -11-$label_id) {
5994                                 print "<li id=\"LHDL-$id\" 
5995                                         onclick=\"javascript:selectionRemoveLabel($label_id)\">
5996                                         &nbsp;&nbsp;$label_caption ".__('(remove)')."</li>";
5997                         } else {                                        
5998                                 print "<li id=\"LHDL-$id\" 
5999                                         onclick=\"javascript:selectionAssignLabel($label_id)\">
6000                                         &nbsp;&nbsp;$label_caption</li>";
6001                         }
6002                 }
6003         }
6004
6005         function format_tags_string($tags, $id) {
6006
6007                 $tags_str = "";
6008                 $tags_nolinks_str = "";
6009
6010                 $num_tags = 0;
6011
6012                 if ($_SESSION["theme"] == "3pane") {
6013                         $tag_limit = 3;
6014                 } else {
6015                         $tag_limit = 6;
6016                 }
6017
6018                 $formatted_tags = array();
6019
6020                 foreach ($tags as $tag) {
6021                         $num_tags++;
6022                         $tag_escaped = str_replace("'", "\\'", $tag);
6023
6024                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
6025
6026                         array_push($formatted_tags, $tag_str);
6027                                 
6028                         if ($num_tags == $tag_limit) {
6029                                 break;
6030                         }
6031                 }
6032
6033                 $tags_str = implode(", ", $formatted_tags);
6034
6035                 if ($num_tags < count($tags)) {
6036                         $tags_str .= ", &hellip;";
6037                 }
6038
6039                 if ($num_tags == 0) {
6040                         $tags_str = __("no tags");
6041                 }
6042
6043                 return $tags_str;
6044
6045         }
6046
6047         function format_article_labels($labels, $id) {
6048
6049                 $labels_str = "";
6050
6051                 foreach ($labels as $l) {
6052                         $labels_str .= sprintf("<span class='hlLabelRef' 
6053                                 style='color : %s; background-color : %s'>%s</span>",
6054                                         $l[2], $l[3], $l[1]);
6055                         }
6056
6057                 return $labels_str;
6058
6059         }
6060 ?>