]> git.wh0rd.org Git - tt-rss.git/blob - include/functions.php
move language detection to a plugin, remove config.php constant
[tt-rss.git] / include / functions.php
1 <?php
2         define('EXPECTED_CONFIG_VERSION', 26);
3         define('SCHEMA_VERSION', 127);
4
5         define('LABEL_BASE_INDEX', -1024);
6         define('PLUGIN_FEED_BASE_INDEX', -128);
7
8         define('COOKIE_LIFETIME_LONG', 86400*365);
9
10         $fetch_last_error = false;
11         $fetch_last_error_code = false;
12         $fetch_last_content_type = false;
13         $fetch_last_error_content = false; // curl only for the time being
14         $fetch_curl_used = false;
15         $suppress_debugging = false;
16
17         libxml_disable_entity_loader(true);
18
19         mb_internal_encoding("UTF-8");
20         date_default_timezone_set('UTC');
21         if (defined('E_DEPRECATED')) {
22                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
23         } else {
24                 error_reporting(E_ALL & ~E_NOTICE);
25         }
26
27         require_once 'config.php';
28
29         /**
30          * Define a constant if not already defined
31          *
32          * @param string $name The constant name.
33          * @param mixed $value The constant value.
34          * @access public
35          * @return boolean True if defined successfully or not.
36          */
37         function define_default($name, $value) {
38                 defined($name) or define($name, $value);
39         }
40
41         ///// Some defaults that you can override in config.php //////
42
43         define_default('FEED_FETCH_TIMEOUT', 45);
44         // How may seconds to wait for response when requesting feed from a site
45         define_default('FEED_FETCH_NO_CACHE_TIMEOUT', 15);
46         // How may seconds to wait for response when requesting feed from a
47         // site when that feed wasn't cached before
48         define_default('FILE_FETCH_TIMEOUT', 45);
49         // Default timeout when fetching files from remote sites
50         define_default('FILE_FETCH_CONNECT_TIMEOUT', 15);
51         // How many seconds to wait for initial response from website when
52         // fetching files from remote sites
53
54         if (DB_TYPE == "pgsql") {
55                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
56         } else {
57                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
58         }
59
60         /**
61          * Return available translations names.
62          *
63          * @access public
64          * @return array A array of available translations.
65          */
66         function get_translations() {
67                 $tr = array(
68                                         "auto"  => "Detect automatically",
69                                         "ar_SA" => "العربيّة (Arabic)",
70                                         "bg_BG" => "Bulgarian",
71                                         "da_DA" => "Dansk",
72                                         "ca_CA" => "Català",
73                                         "cs_CZ" => "Česky",
74                                         "en_US" => "English",
75                                         "el_GR" => "Ελληνικά",
76                                         "es_ES" => "Español (España)",
77                                         "es_LA" => "Español",
78                                         "de_DE" => "Deutsch",
79                                         "fr_FR" => "Français",
80                                         "hu_HU" => "Magyar (Hungarian)",
81                                         "it_IT" => "Italiano",
82                                         "ja_JP" => "日本語 (Japanese)",
83                                         "lv_LV" => "Latviešu",
84                                         "nb_NO" => "Norwegian bokmål",
85                                         "nl_NL" => "Dutch",
86                                         "pl_PL" => "Polski",
87                                         "ru_RU" => "Русский",
88                                         "pt_BR" => "Portuguese/Brazil",
89                                         "pt_PT" => "Portuguese/Portugal",
90                                         "zh_CN" => "Simplified Chinese",
91                                         "zh_TW" => "Traditional Chinese",
92                                         "sv_SE" => "Svenska",
93                                         "fi_FI" => "Suomi",
94                                         "tr_TR" => "Türkçe");
95
96                 return $tr;
97         }
98
99         require_once "lib/accept-to-gettext.php";
100         require_once "lib/gettext/gettext.inc";
101
102         function startup_gettext() {
103
104                 # Get locale from Accept-Language header
105                 $lang = al2gt(array_keys(get_translations()), "text/html");
106
107                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
108                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
109                 }
110
111                 if ($_SESSION["uid"] && get_schema_version() >= 120) {
112                         $pref_lang = get_pref("USER_LANGUAGE", $_SESSION["uid"]);
113
114                         if ($pref_lang && $pref_lang != 'auto') {
115                                 $lang = $pref_lang;
116                         }
117                 }
118
119                 if ($lang) {
120                         if (defined('LC_MESSAGES')) {
121                                 _setlocale(LC_MESSAGES, $lang);
122                         } else if (defined('LC_ALL')) {
123                                 _setlocale(LC_ALL, $lang);
124                         }
125
126                         _bindtextdomain("messages", "locale");
127
128                         _textdomain("messages");
129                         _bind_textdomain_codeset("messages", "UTF-8");
130                 }
131         }
132
133         require_once 'db-prefs.php';
134         require_once 'version.php';
135         require_once 'ccache.php';
136         require_once 'labels.php';
137
138         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
139         ini_set('user_agent', SELF_USER_AGENT);
140
141         require_once 'lib/pubsubhubbub/publisher.php';
142
143         $schema_version = false;
144
145         function _debug_suppress($suppress) {
146                 global $suppress_debugging;
147
148                 $suppress_debugging = $suppress;
149         }
150
151         /**
152          * Print a timestamped debug message.
153          *
154          * @param string $msg The debug message.
155          * @return void
156          */
157         function _debug($msg, $show = true) {
158                 global $suppress_debugging;
159
160                 //echo "[$suppress_debugging] $msg $show\n";
161
162                 if ($suppress_debugging) return false;
163
164                 $ts = strftime("%H:%M:%S", time());
165                 if (function_exists('posix_getpid')) {
166                         $ts = "$ts/" . posix_getpid();
167                 }
168
169                 if ($show && !(defined('QUIET') && QUIET)) {
170                         print "[$ts] $msg\n";
171                 }
172
173                 if (defined('LOGFILE'))  {
174                         $fp = fopen(LOGFILE, 'a+');
175
176                         if ($fp) {
177                                 $locked = false;
178
179                                 if (function_exists("flock")) {
180                                         $tries = 0;
181
182                                         // try to lock logfile for writing
183                                         while ($tries < 5 && !$locked = flock($fp, LOCK_EX | LOCK_NB)) {
184                                                 sleep(1);
185                                                 ++$tries;
186                                         }
187
188                                         if (!$locked) {
189                                                 fclose($fp);
190                                                 return;
191                                         }
192                                 }
193
194                                 fputs($fp, "[$ts] $msg\n");
195
196                                 if (function_exists("flock")) {
197                                         flock($fp, LOCK_UN);
198                                 }
199
200                                 fclose($fp);
201                         }
202                 }
203
204         } // function _debug
205
206         /**
207          * Purge a feed old posts.
208          *
209          * @param mixed $link A database connection.
210          * @param mixed $feed_id The id of the purged feed.
211          * @param mixed $purge_interval Olderness of purged posts.
212          * @param boolean $debug Set to True to enable the debug. False by default.
213          * @access public
214          * @return void
215          */
216         function purge_feed($feed_id, $purge_interval, $debug = false) {
217
218                 if (!$purge_interval) $purge_interval = feed_purge_interval($feed_id);
219
220                 $rows = -1;
221
222                 $result = db_query(
223                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
224
225                 $owner_uid = false;
226
227                 if (db_num_rows($result) == 1) {
228                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
229                 }
230
231                 if ($purge_interval == -1 || !$purge_interval) {
232                         if ($owner_uid) {
233                                 ccache_update($feed_id, $owner_uid);
234                         }
235                         return;
236                 }
237
238                 if (!$owner_uid) return;
239
240                 if (FORCE_ARTICLE_PURGE == 0) {
241                         $purge_unread = get_pref("PURGE_UNREAD_ARTICLES",
242                                 $owner_uid, false);
243                 } else {
244                         $purge_unread = true;
245                         $purge_interval = FORCE_ARTICLE_PURGE;
246                 }
247
248                 if (!$purge_unread) $query_limit = " unread = false AND ";
249
250                 if (DB_TYPE == "pgsql") {
251                         $pg_version = get_pgsql_version();
252
253                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
254
255                                 $result = db_query("DELETE FROM ttrss_user_entries WHERE
256                                         ttrss_entries.id = ref_id AND
257                                         marked = false AND
258                                         feed_id = '$feed_id' AND
259                                         $query_limit
260                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
261
262                         } else {
263
264                                 $result = db_query("DELETE FROM ttrss_user_entries
265                                         USING ttrss_entries
266                                         WHERE ttrss_entries.id = ref_id AND
267                                         marked = false AND
268                                         feed_id = '$feed_id' AND
269                                         $query_limit
270                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
271                         }
272
273                 } else {
274
275 /*                      $result = db_query("DELETE FROM ttrss_user_entries WHERE
276                                 marked = false AND feed_id = '$feed_id' AND
277                                 (SELECT date_updated FROM ttrss_entries WHERE
278                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
279
280                         $result = db_query("DELETE FROM ttrss_user_entries
281                                 USING ttrss_user_entries, ttrss_entries
282                                 WHERE ttrss_entries.id = ref_id AND
283                                 marked = false AND
284                                 feed_id = '$feed_id' AND
285                                 $query_limit
286                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
287                 }
288
289                 $rows = db_affected_rows($result);
290
291                 ccache_update($feed_id, $owner_uid);
292
293                 if ($debug) {
294                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
295                 }
296
297                 return $rows;
298         } // function purge_feed
299
300         function feed_purge_interval($feed_id) {
301
302                 $result = db_query("SELECT purge_interval, owner_uid FROM ttrss_feeds
303                         WHERE id = '$feed_id'");
304
305                 if (db_num_rows($result) == 1) {
306                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
307                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
308
309                         if ($purge_interval == 0) $purge_interval = get_pref(
310                                 'PURGE_OLD_DAYS', $owner_uid);
311
312                         return $purge_interval;
313
314                 } else {
315                         return -1;
316                 }
317         }
318
319         function purge_orphans($do_output = false) {
320
321                 // purge orphaned posts in main content table
322                 $result = db_query("DELETE FROM ttrss_entries WHERE
323                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
324
325                 if ($do_output) {
326                         $rows = db_affected_rows($result);
327                         _debug("Purged $rows orphaned posts.");
328                 }
329         }
330
331         function get_feed_update_interval($feed_id) {
332                 $result = db_query("SELECT owner_uid, update_interval FROM
333                         ttrss_feeds WHERE id = '$feed_id'");
334
335                 if (db_num_rows($result) == 1) {
336                         $update_interval = db_fetch_result($result, 0, "update_interval");
337                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
338
339                         if ($update_interval != 0) {
340                                 return $update_interval;
341                         } else {
342                                 return get_pref('DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
343                         }
344
345                 } else {
346                         return -1;
347                 }
348         }
349
350         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false, $timeout = false, $timestamp = 0, $useragent = false) {
351
352                 global $fetch_last_error;
353                 global $fetch_last_error_code;
354                 global $fetch_last_error_content;
355                 global $fetch_last_content_type;
356                 global $fetch_curl_used;
357
358                 $url = ltrim($url, ' ');
359                 $url = str_replace(' ', '%20', $url);
360
361                 if (strpos($url, "//") === 0)
362                         $url = 'http:' . $url;
363
364                 if (!defined('NO_CURL') && function_exists('curl_init')) {
365
366                         $fetch_curl_used = true;
367
368                         if (ini_get("safe_mode") || ini_get("open_basedir") || defined("FORCE_GETURL")) {
369                                 $new_url = geturl($url);
370                                 if (!$new_url) {
371                                     // geturl has already populated $fetch_last_error
372                                     return false;
373                                 }
374                                 $ch = curl_init($new_url);
375                         } else {
376                                 $ch = curl_init($url);
377                         }
378
379                         if ($timestamp && !$post_query) {
380                                 curl_setopt($ch, CURLOPT_HTTPHEADER,
381                                         array("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $timestamp)));
382                         }
383
384                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
385                         curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
386                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("safe_mode") && !ini_get("open_basedir"));
387                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
388                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
389                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
390                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
391                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
392                         curl_setopt($ch, CURLOPT_USERAGENT, $useragent ? $useragent :
393                                 SELF_USER_AGENT);
394                         curl_setopt($ch, CURLOPT_ENCODING, "");
395                         //curl_setopt($ch, CURLOPT_REFERER, $url);
396
397                         if (!ini_get("safe_mode") && !ini_get("open_basedir")) {
398                                 curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null");
399                         }
400
401                         if (defined('_CURL_HTTP_PROXY')) {
402                                 curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);
403                         }
404
405                         if ($post_query) {
406                                 curl_setopt($ch, CURLOPT_POST, true);
407                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
408                         }
409
410                         if ($login && $pass)
411                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
412
413                         $contents = @curl_exec($ch);
414
415                         if (curl_errno($ch) === 23 || curl_errno($ch) === 61) {
416                                 curl_setopt($ch, CURLOPT_ENCODING, 'none');
417                                 $contents = @curl_exec($ch);
418                         }
419
420                         if ($contents === false) {
421                                 $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
422                                 curl_close($ch);
423                                 return false;
424                         }
425
426                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
427                         $fetch_last_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
428
429                         $fetch_last_error_code = $http_code;
430
431                         if ($http_code != 200 || $type && strpos($fetch_last_content_type, "$type") === false) {
432                                 if (curl_errno($ch) != 0) {
433                                         $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
434                                 } else {
435                                         $fetch_last_error = "HTTP Code: $http_code";
436                                 }
437                                 $fetch_last_error_content = $contents;
438                                 curl_close($ch);
439                                 return false;
440                         }
441
442                         curl_close($ch);
443
444                         return $contents;
445                 } else {
446
447                         $fetch_curl_used = false;
448
449                         if ($login && $pass){
450                                 $url_parts = array();
451
452                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
453
454                                 $pass = urlencode($pass);
455
456                                 if ($url_parts[1] && $url_parts[2]) {
457                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
458                                 }
459                         }
460
461                         if (!$post_query && $timestamp) {
462                                 $context = stream_context_create(array(
463                                         'http' => array(
464                                                 'method' => 'GET',
465                                                 'header' => "If-Modified-Since: ".gmdate("D, d M Y H:i:s \\G\\M\\T\r\n", $timestamp)
466                                         )));
467                         } else {
468                                 $context = NULL;
469                         }
470
471                         $old_error = error_get_last();
472
473                         $data = @file_get_contents($url, false, $context);
474
475                         $fetch_last_content_type = false;  // reset if no type was sent from server
476                         if (isset($http_response_header) && is_array($http_response_header)) {
477                                 foreach ($http_response_header as $h) {
478                                         if (substr(strtolower($h), 0, 13) == 'content-type:') {
479                                                 $fetch_last_content_type = substr($h, 14);
480                                                 // don't abort here b/c there might be more than one
481                                                 // e.g. if we were being redirected -- last one is the right one
482                                         }
483
484                                         if (substr(strtolower($h), 0, 7) == 'http/1.') {
485                                                 $fetch_last_error_code = (int) substr($h, 9, 3);
486                                         }
487                                 }
488                         }
489
490                         if (!$data) {
491                                 $error = error_get_last();
492
493                                 if ($error['message'] != $old_error['message']) {
494                                         $fetch_last_error = $error["message"];
495                                 } else {
496                                         $fetch_last_error = "HTTP Code: $fetch_last_error_code";
497                                 }
498                         }
499                         return $data;
500                 }
501
502         }
503
504         /**
505          * Try to determine the favicon URL for a feed.
506          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
507          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
508          *
509          * @param string $url A feed or page URL
510          * @access public
511          * @return mixed The favicon URL, or false if none was found.
512          */
513         function get_favicon_url($url) {
514
515                 $favicon_url = false;
516
517                 if ($html = @fetch_file_contents($url)) {
518
519                         libxml_use_internal_errors(true);
520
521                         $doc = new DOMDocument();
522                         $doc->loadHTML($html);
523                         $xpath = new DOMXPath($doc);
524
525                         $base = $xpath->query('/html/head/base');
526                         foreach ($base as $b) {
527                                 $url = $b->getAttribute("href");
528                                 break;
529                         }
530
531                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
532                         if (count($entries) > 0) {
533                                 foreach ($entries as $entry) {
534                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
535                                         break;
536                                 }
537                         }
538                 }
539
540                 if (!$favicon_url)
541                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
542
543                 return $favicon_url;
544         } // function get_favicon_url
545
546         function check_feed_favicon($site_url, $feed) {
547 #               print "FAVICON [$site_url]: $favicon_url\n";
548
549                 $icon_file = ICONS_DIR . "/$feed.ico";
550
551                 if (!file_exists($icon_file)) {
552                         $favicon_url = get_favicon_url($site_url);
553
554                         if ($favicon_url) {
555                                 // Limiting to "image" type misses those served with text/plain
556                                 $contents = fetch_file_contents($favicon_url); // , "image");
557
558                                 if ($contents) {
559                                         // Crude image type matching.
560                                         // Patterns gleaned from the file(1) source code.
561                                         if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
562                                                 // 0       string  \000\000\001\000        MS Windows icon resource
563                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
564                                         }
565                                         elseif (preg_match('/^GIF8/', $contents)) {
566                                                 // 0       string          GIF8            GIF image data
567                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
568                                         }
569                                         elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
570                                                 // 0       string          \x89PNG\x0d\x0a\x1a\x0a         PNG image data
571                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
572                                         }
573                                         elseif (preg_match('/^\xff\xd8/', $contents)) {
574                                                 // 0       beshort         0xffd8          JPEG image data
575                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
576                                         }
577                                         else {
578                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
579                                                 $contents = "";
580                                         }
581                                 }
582
583                                 if ($contents) {
584                                         $fp = @fopen($icon_file, "w");
585
586                                         if ($fp) {
587                                                 fwrite($fp, $contents);
588                                                 fclose($fp);
589                                                 chmod($icon_file, 0644);
590                                         }
591                                 }
592                         }
593             return $icon_file;
594                 }
595         }
596
597         function print_select($id, $default, $values, $attributes = "") {
598                 print "<select name=\"$id\" id=\"$id\" $attributes>";
599                 foreach ($values as $v) {
600                         if ($v == $default)
601                                 $sel = "selected=\"1\"";
602                          else
603                                 $sel = "";
604
605                         $v = trim($v);
606
607                         print "<option value=\"$v\" $sel>$v</option>";
608                 }
609                 print "</select>";
610         }
611
612         function print_select_hash($id, $default, $values, $attributes = "") {
613                 print "<select name=\"$id\" id='$id' $attributes>";
614                 foreach (array_keys($values) as $v) {
615                         if ($v == $default)
616                                 $sel = 'selected="selected"';
617                          else
618                                 $sel = "";
619
620                         $v = trim($v);
621
622                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
623                 }
624
625                 print "</select>";
626         }
627
628         function print_radio($id, $default, $true_is, $values, $attributes = "") {
629                 foreach ($values as $v) {
630
631                         if ($v == $default)
632                                 $sel = "checked";
633                          else
634                                 $sel = "";
635
636                         if ($v == $true_is) {
637                                 $sel .= " value=\"1\"";
638                         } else {
639                                 $sel .= " value=\"0\"";
640                         }
641
642                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
643                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
644
645                 }
646         }
647
648         function initialize_user_prefs($uid, $profile = false) {
649
650                 $uid = db_escape_string($uid);
651
652                 if (!$profile) {
653                         $profile = "NULL";
654                         $profile_qpart = "AND profile IS NULL";
655                 } else {
656                         $profile_qpart = "AND profile = '$profile'";
657                 }
658
659                 if (get_schema_version() < 63) $profile_qpart = "";
660
661                 db_query("BEGIN");
662
663                 $result = db_query("SELECT pref_name,def_value FROM ttrss_prefs");
664
665                 $u_result = db_query("SELECT pref_name
666                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
667
668                 $active_prefs = array();
669
670                 while ($line = db_fetch_assoc($u_result)) {
671                         array_push($active_prefs, $line["pref_name"]);
672                 }
673
674                 while ($line = db_fetch_assoc($result)) {
675                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
676 //                              print "adding " . $line["pref_name"] . "<br>";
677
678                                 $line["def_value"] = db_escape_string($line["def_value"]);
679                                 $line["pref_name"] = db_escape_string($line["pref_name"]);
680
681                                 if (get_schema_version() < 63) {
682                                         db_query("INSERT INTO ttrss_user_prefs
683                                                 (owner_uid,pref_name,value) VALUES
684                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
685
686                                 } else {
687                                         db_query("INSERT INTO ttrss_user_prefs
688                                                 (owner_uid,pref_name,value, profile) VALUES
689                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
690                                 }
691
692                         }
693                 }
694
695                 db_query("COMMIT");
696
697         }
698
699         function get_ssl_certificate_id() {
700                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
701                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
702                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
703                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
704                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
705                 }
706                 if ($_SERVER["SSL_CLIENT_M_SERIAL"]) {
707                         return sha1($_SERVER["SSL_CLIENT_M_SERIAL"] .
708                                 $_SERVER["SSL_CLIENT_V_START"] .
709                                 $_SERVER["SSL_CLIENT_V_END"] .
710                                 $_SERVER["SSL_CLIENT_S_DN"]);
711                 }
712                 return "";
713         }
714
715         function authenticate_user($login, $password, $check_only = false) {
716
717                 if (!SINGLE_USER_MODE) {
718                         $user_id = false;
719
720                         foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) {
721
722                                 $user_id = (int) $plugin->authenticate($login, $password);
723
724                                 if ($user_id) {
725                                         $_SESSION["auth_module"] = strtolower(get_class($plugin));
726                                         break;
727                                 }
728                         }
729
730                         if ($user_id && !$check_only) {
731                                 @session_start();
732
733                                 $_SESSION["uid"] = $user_id;
734                                 $_SESSION["version"] = VERSION_STATIC;
735
736                                 $result = db_query("SELECT login,access_level,pwd_hash FROM ttrss_users
737                                         WHERE id = '$user_id'");
738
739                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
740                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
741                                 $_SESSION["csrf_token"] = uniqid(rand(), true);
742
743                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
744                                         $_SESSION["uid"]);
745
746                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
747                                 $_SESSION["user_agent"] = sha1($_SERVER['HTTP_USER_AGENT']);
748                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
749
750                                 $_SESSION["last_version_check"] = time();
751
752                                 initialize_user_prefs($_SESSION["uid"]);
753
754                                 return true;
755                         }
756
757                         return false;
758
759                 } else {
760
761                         $_SESSION["uid"] = 1;
762                         $_SESSION["name"] = "admin";
763                         $_SESSION["access_level"] = 10;
764
765                         $_SESSION["hide_hello"] = true;
766                         $_SESSION["hide_logout"] = true;
767
768                         $_SESSION["auth_module"] = false;
769
770                         if (!$_SESSION["csrf_token"]) {
771                                 $_SESSION["csrf_token"] = uniqid(rand(), true);
772                         }
773
774                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
775
776                         initialize_user_prefs($_SESSION["uid"]);
777
778                         return true;
779                 }
780         }
781
782         function make_password($length = 8) {
783
784                 $password = "";
785                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
786
787         $i = 0;
788
789                 while ($i < $length) {
790                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
791
792                         if (!strstr($password, $char)) {
793                                 $password .= $char;
794                                 $i++;
795                         }
796                 }
797                 return $password;
798         }
799
800         // this is called after user is created to initialize default feeds, labels
801         // or whatever else
802
803         // user preferences are checked on every login, not here
804
805         function initialize_user($uid) {
806
807                 db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
808                         values ('$uid', 'Tiny Tiny RSS: Forum',
809                                 'http://tt-rss.org/forum/rss.php')");
810         }
811
812         function logout_user() {
813                 session_destroy();
814                 if (isset($_COOKIE[session_name()])) {
815                    setcookie(session_name(), '', time()-42000, '/');
816                 }
817         }
818
819         function validate_csrf($csrf_token) {
820                 return $csrf_token == $_SESSION['csrf_token'];
821         }
822
823         function load_user_plugins($owner_uid) {
824                 if ($owner_uid && SCHEMA_VERSION >= 100) {
825                         $plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
826
827                         PluginHost::getInstance()->load($plugins, PluginHost::KIND_USER, $owner_uid);
828
829                         if (get_schema_version() > 100) {
830                                 PluginHost::getInstance()->load_data();
831                         }
832                 }
833         }
834
835         function login_sequence() {
836                 if (SINGLE_USER_MODE) {
837                         @session_start();
838                         authenticate_user("admin", null);
839                         startup_gettext();
840                         load_user_plugins($_SESSION["uid"]);
841                 } else {
842                         if (!validate_session()) $_SESSION["uid"] = false;
843
844                         if (!$_SESSION["uid"]) {
845
846                                 if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) {
847                                     $_SESSION["ref_schema_version"] = get_schema_version(true);
848                                 } else {
849                                          authenticate_user(null, null, true);
850                                 }
851
852                                 if (!$_SESSION["uid"]) {
853                                         @session_destroy();
854                                         setcookie(session_name(), '', time()-42000, '/');
855
856                                         render_login_form();
857                                         exit;
858                                 }
859
860                         } else {
861                                 /* bump login timestamp */
862                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
863                                         $_SESSION["uid"]);
864                                 $_SESSION["last_login_update"] = time();
865                         }
866
867                         if ($_SESSION["uid"]) {
868                                 startup_gettext();
869                                 load_user_plugins($_SESSION["uid"]);
870
871                                 /* cleanup ccache */
872
873                                 db_query("DELETE FROM ttrss_counters_cache WHERE owner_uid = ".
874                                         $_SESSION["uid"] . " AND
875                                                 (SELECT COUNT(id) FROM ttrss_feeds WHERE
876                                                         ttrss_feeds.id = feed_id) = 0");
877
878                                 db_query("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ".
879                                         $_SESSION["uid"] . " AND
880                                                 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
881                                                         ttrss_feed_categories.id = feed_id) = 0");
882
883                         }
884
885                 }
886         }
887
888         function truncate_string($str, $max_len, $suffix = '&hellip;') {
889                 if (mb_strlen($str, "utf-8") > $max_len) {
890                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
891                 } else {
892                         return $str;
893                 }
894         }
895
896         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
897
898                 try {
899                         $source_tz = new DateTimeZone($source_tz);
900                 } catch (Exception $e) {
901                         $source_tz = new DateTimeZone('UTC');
902                 }
903
904                 try {
905                         $dest_tz = new DateTimeZone($dest_tz);
906                 } catch (Exception $e) {
907                         $dest_tz = new DateTimeZone('UTC');
908                 }
909
910                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
911                 return $dt->format('U') + $dest_tz->getOffset($dt);
912         }
913
914         function make_local_datetime($timestamp, $long, $owner_uid = false,
915                                         $no_smart_dt = false) {
916
917                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
918                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
919
920                 global $utc_tz;
921                 global $user_tz;
922
923                 if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
924
925                 $timestamp = substr($timestamp, 0, 19);
926
927                 # We store date in UTC internally
928                 $dt = new DateTime($timestamp, $utc_tz);
929
930                 $user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
931
932                 if ($user_tz_string != 'Automatic') {
933
934                         try {
935                                 if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
936                         } catch (Exception $e) {
937                                 $user_tz = $utc_tz;
938                         }
939
940                         $tz_offset = $user_tz->getOffset($dt);
941                 } else {
942                         $tz_offset = (int) -$_SESSION["clientTzOffset"];
943                 }
944
945                 $user_timestamp = $dt->format('U') + $tz_offset;
946
947                 if (!$no_smart_dt) {
948                         return smart_date_time($user_timestamp,
949                                 $tz_offset, $owner_uid);
950                 } else {
951                         if ($long)
952                                 $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
953                         else
954                                 $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
955
956                         return date($format, $user_timestamp);
957                 }
958         }
959
960         function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false) {
961                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
962
963                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
964                         return date("G:i", $timestamp);
965                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
966                         $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
967                         return date($format, $timestamp);
968                 } else {
969                         $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
970                         return date($format, $timestamp);
971                 }
972         }
973
974         function sql_bool_to_bool($s) {
975                 if ($s == "t" || $s == "1" || strtolower($s) == "true") {
976                         return true;
977                 } else {
978                         return false;
979                 }
980         }
981
982         function bool_to_sql_bool($s) {
983                 if ($s) {
984                         return "true";
985                 } else {
986                         return "false";
987                 }
988         }
989
990         // Session caching removed due to causing wrong redirects to upgrade
991         // script when get_schema_version() is called on an obsolete session
992         // created on a previous schema version.
993         function get_schema_version($nocache = false) {
994                 global $schema_version;
995
996                 if (!$schema_version && !$nocache) {
997                         $result = db_query("SELECT schema_version FROM ttrss_version");
998                         $version = db_fetch_result($result, 0, "schema_version");
999                         $schema_version = $version;
1000                         return $version;
1001                 } else {
1002                         return $schema_version;
1003                 }
1004         }
1005
1006         function sanity_check() {
1007                 require_once 'errors.php';
1008                 global $ERRORS;
1009
1010                 $error_code = 0;
1011                 $schema_version = get_schema_version(true);
1012
1013                 if ($schema_version != SCHEMA_VERSION) {
1014                         $error_code = 5;
1015                 }
1016
1017                 if (DB_TYPE == "mysql") {
1018                         $result = db_query("SELECT true", false);
1019                         if (db_num_rows($result) != 1) {
1020                                 $error_code = 10;
1021                         }
1022                 }
1023
1024                 if (db_escape_string("testTEST") != "testTEST") {
1025                         $error_code = 12;
1026                 }
1027
1028                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1029         }
1030
1031         function file_is_locked($filename) {
1032                 if (file_exists(LOCK_DIRECTORY . "/$filename")) {
1033                         if (function_exists('flock')) {
1034                                 $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1035                                 if ($fp) {
1036                                         if (flock($fp, LOCK_EX | LOCK_NB)) {
1037                                                 flock($fp, LOCK_UN);
1038                                                 fclose($fp);
1039                                                 return false;
1040                                         }
1041                                         fclose($fp);
1042                                         return true;
1043                                 } else {
1044                                         return false;
1045                                 }
1046                         }
1047                         return true; // consider the file always locked and skip the test
1048                 } else {
1049                         return false;
1050                 }
1051         }
1052
1053
1054         function make_lockfile($filename) {
1055                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1056
1057                 if ($fp && flock($fp, LOCK_EX | LOCK_NB)) {
1058                         $stat_h = fstat($fp);
1059                         $stat_f = stat(LOCK_DIRECTORY . "/$filename");
1060
1061                         if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
1062                                 if ($stat_h["ino"] != $stat_f["ino"] ||
1063                                                 $stat_h["dev"] != $stat_f["dev"]) {
1064
1065                                         return false;
1066                                 }
1067                         }
1068
1069                         if (function_exists('posix_getpid')) {
1070                                 fwrite($fp, posix_getpid() . "\n");
1071                         }
1072                         return $fp;
1073                 } else {
1074                         return false;
1075                 }
1076         }
1077
1078         function make_stampfile($filename) {
1079                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1080
1081                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1082                         fwrite($fp, time() . "\n");
1083                         flock($fp, LOCK_UN);
1084                         fclose($fp);
1085                         return true;
1086                 } else {
1087                         return false;
1088                 }
1089         }
1090
1091         function sql_random_function() {
1092                 if (DB_TYPE == "mysql") {
1093                         return "RAND()";
1094                 } else {
1095                         return "RANDOM()";
1096                 }
1097         }
1098
1099         function catchup_feed($feed, $cat_view, $owner_uid = false, $max_id = false, $mode = 'all') {
1100
1101                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1102
1103                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1104
1105                         // Todo: all this interval stuff needs some generic generator function
1106
1107                         $date_qpart = "false";
1108
1109                         switch ($mode) {
1110                         case "1day":
1111                                 if (DB_TYPE == "pgsql") {
1112                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
1113                                 } else {
1114                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
1115                                 }
1116                                 break;
1117                         case "1week":
1118                                 if (DB_TYPE == "pgsql") {
1119                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 week' ";
1120                                 } else {
1121                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 WEEK) ";
1122                                 }
1123                                 break;
1124                         case "2week":
1125                                 if (DB_TYPE == "pgsql") {
1126                                         $date_qpart = "date_entered < NOW() - INTERVAL '2 week' ";
1127                                 } else {
1128                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 2 WEEK) ";
1129                                 }
1130                                 break;
1131                         default:
1132                                 $date_qpart = "true";
1133                         }
1134
1135                         if (is_numeric($feed)) {
1136                                 if ($cat_view) {
1137
1138                                         if ($feed >= 0) {
1139
1140                                                 if ($feed > 0) {
1141                                                         $children = getChildCategories($feed, $owner_uid);
1142                                                         array_push($children, $feed);
1143
1144                                                         $children = join(",", $children);
1145
1146                                                         $cat_qpart = "cat_id IN ($children)";
1147                                                 } else {
1148                                                         $cat_qpart = "cat_id IS NULL";
1149                                                 }
1150
1151                                                 db_query("UPDATE ttrss_user_entries
1152                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1153                                                                 (SELECT id FROM
1154                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1155                                                                                 AND owner_uid = $owner_uid AND unread = true AND feed_id IN
1156                                                                                         (SELECT id FROM ttrss_feeds WHERE $cat_qpart) AND $date_qpart) as tmp)");
1157
1158                                         } else if ($feed == -2) {
1159
1160                                                 db_query("UPDATE ttrss_user_entries
1161                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1162                                                                 FROM ttrss_user_labels2, ttrss_entries WHERE article_id = ref_id AND id = ref_id AND $date_qpart) > 0
1163                                                                 AND unread = true AND owner_uid = $owner_uid");
1164                                         }
1165
1166                                 } else if ($feed > 0) {
1167
1168                                         db_query("UPDATE ttrss_user_entries
1169                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1170                                                         (SELECT id FROM
1171                                                                 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1172                                                                         AND owner_uid = $owner_uid AND unread = true AND feed_id = $feed AND $date_qpart) as tmp)");
1173
1174                                 } else if ($feed < 0 && $feed > LABEL_BASE_INDEX) { // special, like starred
1175
1176                                         if ($feed == -1) {
1177                                                 db_query("UPDATE ttrss_user_entries
1178                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1179                                                                 (SELECT id FROM
1180                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1181                                                                                 AND owner_uid = $owner_uid AND unread = true AND marked = true AND $date_qpart) as tmp)");
1182                                         }
1183
1184                                         if ($feed == -2) {
1185                                                 db_query("UPDATE ttrss_user_entries
1186                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1187                                                                 (SELECT id FROM
1188                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1189                                                                                 AND owner_uid = $owner_uid AND unread = true AND published = true AND $date_qpart) as tmp)");
1190                                         }
1191
1192                                         if ($feed == -3) {
1193
1194                                                 $intl = get_pref("FRESH_ARTICLE_MAX_AGE");
1195
1196                                                 if (DB_TYPE == "pgsql") {
1197                                                         $match_part = "date_entered > NOW() - INTERVAL '$intl hour' ";
1198                                                 } else {
1199                                                         $match_part = "date_entered > DATE_SUB(NOW(),
1200                                                                 INTERVAL $intl HOUR) ";
1201                                                 }
1202
1203                                                 db_query("UPDATE ttrss_user_entries
1204                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1205                                                                 (SELECT id FROM
1206                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1207                                                                                 AND owner_uid = $owner_uid AND score >= 0 AND unread = true AND $date_qpart AND $match_part) as tmp)");
1208                                         }
1209
1210                                         if ($feed == -4) {
1211                                                 db_query("UPDATE ttrss_user_entries
1212                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1213                                                                 (SELECT id FROM
1214                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1215                                                                                 AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1216                                         }
1217
1218                                 } else if ($feed < LABEL_BASE_INDEX) { // label
1219
1220                                         $label_id = feed_to_label_id($feed);
1221
1222                                         db_query("UPDATE ttrss_user_entries
1223                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1224                                                         (SELECT id FROM
1225                                                                 (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_user_labels2 WHERE ref_id = id
1226                                                                         AND label_id = '$label_id' AND ref_id = article_id
1227                                                                         AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1228
1229                                 }
1230
1231                                 ccache_update($feed, $owner_uid, $cat_view);
1232
1233                         } else { // tag
1234                                 db_query("UPDATE ttrss_user_entries
1235                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1236                                                 (SELECT id FROM
1237                                                         (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_tags WHERE ref_id = ttrss_entries.id
1238                                                                 AND post_int_id = int_id AND tag_name = '$feed'
1239                                                                 AND ttrss_user_entries.owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1240
1241                         }
1242         }
1243
1244         function getAllCounters() {
1245                 $data = getGlobalCounters();
1246
1247                 $data = array_merge($data, getVirtCounters());
1248                 $data = array_merge($data, getLabelCounters());
1249                 $data = array_merge($data, getFeedCounters());
1250                 $data = array_merge($data, getCategoryCounters());
1251
1252                 return $data;
1253         }
1254
1255         function getCategoryTitle($cat_id) {
1256
1257                 if ($cat_id == -1) {
1258                         return __("Special");
1259                 } else if ($cat_id == -2) {
1260                         return __("Labels");
1261                 } else {
1262
1263                         $result = db_query("SELECT title FROM ttrss_feed_categories WHERE
1264                                 id = '$cat_id'");
1265
1266                         if (db_num_rows($result) == 1) {
1267                                 return db_fetch_result($result, 0, "title");
1268                         } else {
1269                                 return __("Uncategorized");
1270                         }
1271                 }
1272         }
1273
1274
1275         function getCategoryCounters() {
1276                 $ret_arr = array();
1277
1278                 /* Labels category */
1279
1280                 $cv = array("id" => -2, "kind" => "cat",
1281                         "counter" => getCategoryUnread(-2));
1282
1283                 array_push($ret_arr, $cv);
1284
1285                 $result = db_query("SELECT id AS cat_id, value AS unread,
1286                         (SELECT COUNT(id) FROM ttrss_feed_categories AS c2
1287                                 WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
1288                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
1289                         WHERE ttrss_cat_counters_cache.feed_id = id AND
1290                         ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid AND
1291                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1292
1293                 while ($line = db_fetch_assoc($result)) {
1294                         $line["cat_id"] = (int) $line["cat_id"];
1295
1296                         if ($line["num_children"] > 0) {
1297                                 $child_counter = getCategoryChildrenUnread($line["cat_id"], $_SESSION["uid"]);
1298                         } else {
1299                                 $child_counter = 0;
1300                         }
1301
1302                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
1303                                 "counter" => $line["unread"] + $child_counter);
1304
1305                         array_push($ret_arr, $cv);
1306                 }
1307
1308                 /* Special case: NULL category doesn't actually exist in the DB */
1309
1310                 $cv = array("id" => 0, "kind" => "cat",
1311                         "counter" => (int) ccache_find(0, $_SESSION["uid"], true));
1312
1313                 array_push($ret_arr, $cv);
1314
1315                 return $ret_arr;
1316         }
1317
1318         // only accepts real cats (>= 0)
1319         function getCategoryChildrenUnread($cat, $owner_uid = false) {
1320                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1321
1322                 $result = db_query("SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
1323                                 AND owner_uid = $owner_uid");
1324
1325                 $unread = 0;
1326
1327                 while ($line = db_fetch_assoc($result)) {
1328                         $unread += getCategoryUnread($line["id"], $owner_uid);
1329                         $unread += getCategoryChildrenUnread($line["id"], $owner_uid);
1330                 }
1331
1332                 return $unread;
1333         }
1334
1335         function getCategoryUnread($cat, $owner_uid = false) {
1336
1337                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1338
1339                 if ($cat >= 0) {
1340
1341                         if ($cat != 0) {
1342                                 $cat_query = "cat_id = '$cat'";
1343                         } else {
1344                                 $cat_query = "cat_id IS NULL";
1345                         }
1346
1347                         $result = db_query("SELECT id FROM ttrss_feeds WHERE $cat_query
1348                                         AND owner_uid = " . $owner_uid);
1349
1350                         $cat_feeds = array();
1351                         while ($line = db_fetch_assoc($result)) {
1352                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
1353                         }
1354
1355                         if (count($cat_feeds) == 0) return 0;
1356
1357                         $match_part = implode(" OR ", $cat_feeds);
1358
1359                         $result = db_query("SELECT COUNT(int_id) AS unread
1360                                 FROM ttrss_user_entries
1361                                 WHERE   unread = true AND ($match_part)
1362                                 AND owner_uid = " . $owner_uid);
1363
1364                         $unread = 0;
1365
1366                         # this needs to be rewritten
1367                         while ($line = db_fetch_assoc($result)) {
1368                                 $unread += $line["unread"];
1369                         }
1370
1371                         return $unread;
1372                 } else if ($cat == -1) {
1373                         return getFeedUnread(-1) + getFeedUnread(-2) + getFeedUnread(-3) + getFeedUnread(0);
1374                 } else if ($cat == -2) {
1375
1376                         $result = db_query("
1377                                 SELECT COUNT(unread) AS unread FROM
1378                                         ttrss_user_entries, ttrss_user_labels2
1379                                 WHERE article_id = ref_id AND unread = true
1380                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
1381
1382                         $unread = db_fetch_result($result, 0, "unread");
1383
1384                         return $unread;
1385
1386                 }
1387         }
1388
1389         function getFeedUnread($feed, $is_cat = false) {
1390                 return getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]);
1391         }
1392
1393         function getLabelUnread($label_id, $owner_uid = false) {
1394                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1395
1396                 $result = db_query("SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
1397                         WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
1398
1399                 if (db_num_rows($result) != 0) {
1400                         return db_fetch_result($result, 0, "unread");
1401                 } else {
1402                         return 0;
1403                 }
1404         }
1405
1406         function getFeedArticles($feed, $is_cat = false, $unread_only = false,
1407                 $owner_uid = false) {
1408
1409                 $n_feed = (int) $feed;
1410                 $need_entries = false;
1411
1412                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1413
1414                 if ($unread_only) {
1415                         $unread_qpart = "unread = true";
1416                 } else {
1417                         $unread_qpart = "true";
1418                 }
1419
1420                 if ($is_cat) {
1421                         return getCategoryUnread($n_feed, $owner_uid);
1422                 } else if ($n_feed == -6) {
1423                         return 0;
1424                 } else if ($feed != "0" && $n_feed == 0) {
1425
1426                         $feed = db_escape_string($feed);
1427
1428                         $result = db_query("SELECT SUM((SELECT COUNT(int_id)
1429                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1430                                         AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
1431                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1432                         return db_fetch_result($result, 0, "count");
1433
1434                 } else if ($n_feed == -1) {
1435                         $match_part = "marked = true";
1436                 } else if ($n_feed == -2) {
1437                         $match_part = "published = true";
1438                 } else if ($n_feed == -3) {
1439                         $match_part = "unread = true AND score >= 0";
1440
1441                         $intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
1442
1443                         if (DB_TYPE == "pgsql") {
1444                                 $match_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
1445                         } else {
1446                                 $match_part .= " AND date_entered > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1447                         }
1448
1449                         $need_entries = true;
1450
1451                 } else if ($n_feed == -4) {
1452                         $match_part = "true";
1453                 } else if ($n_feed >= 0) {
1454
1455                         if ($n_feed != 0) {
1456                                 $match_part = "feed_id = '$n_feed'";
1457                         } else {
1458                                 $match_part = "feed_id IS NULL";
1459                         }
1460
1461                 } else if ($feed < LABEL_BASE_INDEX) {
1462
1463                         $label_id = feed_to_label_id($feed);
1464
1465                         return getLabelUnread($label_id, $owner_uid);
1466
1467                 }
1468
1469                 if ($match_part) {
1470
1471                         if ($need_entries) {
1472                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
1473                                 $from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
1474                         } else {
1475                                 $from_qpart = "ttrss_user_entries";
1476                                 $from_where = "";
1477                         }
1478
1479                         $query = "SELECT count(int_id) AS unread
1480                                 FROM $from_qpart WHERE
1481                                 $unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1482
1483                         //echo "[$feed/$query]\n";
1484
1485                         $result = db_query($query);
1486
1487                 } else {
1488
1489                         $result = db_query("SELECT COUNT(post_int_id) AS unread
1490                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1491                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1492                                 AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
1493                 }
1494
1495                 $unread = db_fetch_result($result, 0, "unread");
1496
1497                 return $unread;
1498         }
1499
1500         function getGlobalUnread($user_id = false) {
1501
1502                 if (!$user_id) {
1503                         $user_id = $_SESSION["uid"];
1504                 }
1505
1506                 $result = db_query("SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1507                         WHERE owner_uid = '$user_id' AND feed_id > 0");
1508
1509                 $c_id = db_fetch_result($result, 0, "c_id");
1510
1511                 return $c_id;
1512         }
1513
1514         function getGlobalCounters($global_unread = -1) {
1515                 $ret_arr = array();
1516
1517                 if ($global_unread == -1) {
1518                         $global_unread = getGlobalUnread();
1519                 }
1520
1521                 $cv = array("id" => "global-unread",
1522                         "counter" => (int) $global_unread);
1523
1524                 array_push($ret_arr, $cv);
1525
1526                 $result = db_query("SELECT COUNT(id) AS fn FROM
1527                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1528
1529                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1530
1531                 $cv = array("id" => "subscribed-feeds",
1532                         "counter" => (int) $subscribed_feeds);
1533
1534                 array_push($ret_arr, $cv);
1535
1536                 return $ret_arr;
1537         }
1538
1539         function getVirtCounters() {
1540
1541                 $ret_arr = array();
1542
1543                 for ($i = 0; $i >= -4; $i--) {
1544
1545                         $count = getFeedUnread($i);
1546
1547                         if ($i == 0 || $i == -1 || $i == -2)
1548                                 $auxctr = getFeedArticles($i, false);
1549                         else
1550                                 $auxctr = 0;
1551
1552                         $cv = array("id" => $i,
1553                                 "counter" => (int) $count,
1554                                 "auxcounter" => $auxctr);
1555
1556 //                      if (get_pref('EXTENDED_FEEDLIST'))
1557 //                              $cv["xmsg"] = getFeedArticles($i)." ".__("total");
1558
1559                         array_push($ret_arr, $cv);
1560                 }
1561
1562                 $feeds = PluginHost::getInstance()->get_feeds(-1);
1563
1564                 if (is_array($feeds)) {
1565                         foreach ($feeds as $feed) {
1566                                 $cv = array("id" => PluginHost::pfeed_to_feed_id($feed['id']),
1567                                         "counter" => $feed['sender']->get_unread($feed['id']));
1568
1569                                 if (method_exists($feed['sender'], 'get_total'))
1570                                         $cv["auxcounter"] = $feed['sender']->get_total($feed['id']);
1571
1572                                 array_push($ret_arr, $cv);
1573                         }
1574                 }
1575
1576                 return $ret_arr;
1577         }
1578
1579         function getLabelCounters($descriptions = false) {
1580
1581                 $ret_arr = array();
1582
1583                 $owner_uid = $_SESSION["uid"];
1584
1585                 $result = db_query("SELECT id,caption,SUM(CASE WHEN u1.unread = true THEN 1 ELSE 0 END) AS unread, COUNT(u1.unread) AS total
1586                         FROM ttrss_labels2 LEFT JOIN ttrss_user_labels2 ON
1587                                 (ttrss_labels2.id = label_id)
1588                                 LEFT JOIN ttrss_user_entries AS u1 ON u1.ref_id = article_id
1589                                 WHERE ttrss_labels2.owner_uid = $owner_uid GROUP BY ttrss_labels2.id,
1590                                         ttrss_labels2.caption");
1591
1592                 while ($line = db_fetch_assoc($result)) {
1593
1594                         $id = label_to_feed_id($line["id"]);
1595
1596                         $cv = array("id" => $id,
1597                                 "counter" => (int) $line["unread"],
1598                                 "auxcounter" => (int) $line["total"]);
1599
1600                         if ($descriptions)
1601                                 $cv["description"] = $line["caption"];
1602
1603                         array_push($ret_arr, $cv);
1604                 }
1605
1606                 return $ret_arr;
1607         }
1608
1609         function getFeedCounters($active_feed = false) {
1610
1611                 $ret_arr = array();
1612
1613                 $query = "SELECT ttrss_feeds.id,
1614                                 ttrss_feeds.title,
1615                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1616                                 last_error, value AS count
1617                         FROM ttrss_feeds, ttrss_counters_cache
1618                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1619                                 AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
1620                                 AND ttrss_counters_cache.feed_id = id";
1621
1622                 $result = db_query($query);
1623
1624                 while ($line = db_fetch_assoc($result)) {
1625
1626                         $id = $line["id"];
1627                         $count = $line["count"];
1628                         $last_error = htmlspecialchars($line["last_error"]);
1629
1630                         $last_updated = make_local_datetime($line['last_updated'], false);
1631
1632                         $has_img = feed_has_icon($id);
1633
1634                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1635                                 $last_updated = '';
1636
1637                         $cv = array("id" => $id,
1638                                 "updated" => $last_updated,
1639                                 "counter" => (int) $count,
1640                                 "has_img" => (int) $has_img);
1641
1642                         if ($last_error)
1643                                 $cv["error"] = $last_error;
1644
1645 //                      if (get_pref('EXTENDED_FEEDLIST'))
1646 //                              $cv["xmsg"] = getFeedArticles($id)." ".__("total");
1647
1648                         if ($active_feed && $id == $active_feed)
1649                                 $cv["title"] = truncate_string($line["title"], 30);
1650
1651                         array_push($ret_arr, $cv);
1652
1653                 }
1654
1655                 return $ret_arr;
1656         }
1657
1658         function get_pgsql_version() {
1659                 $result = db_query("SELECT version() AS version");
1660                 $version = explode(" ", db_fetch_result($result, 0, "version"));
1661                 return $version[1];
1662         }
1663
1664         /**
1665          * @return array (code => Status code, message => error message if available)
1666          *
1667          *                 0 - OK, Feed already exists
1668          *                 1 - OK, Feed added
1669          *                 2 - Invalid URL
1670          *                 3 - URL content is HTML, no feeds available
1671          *                 4 - URL content is HTML which contains multiple feeds.
1672          *                     Here you should call extractfeedurls in rpc-backend
1673          *                     to get all possible feeds.
1674          *                 5 - Couldn't download the URL content.
1675          *                 6 - Content is an invalid XML.
1676          */
1677         function subscribe_to_feed($url, $cat_id = 0,
1678                         $auth_login = '', $auth_pass = '') {
1679
1680                 global $fetch_last_error;
1681
1682                 require_once "include/rssfuncs.php";
1683
1684                 $url = fix_url($url);
1685
1686                 if (!$url || !validate_feed_url($url)) return array("code" => 2);
1687
1688                 $contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
1689
1690                 if (!$contents) {
1691                         return array("code" => 5, "message" => $fetch_last_error);
1692                 }
1693
1694                 foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SUBSCRIBE_FEED) as $plugin) {
1695                         $contents = $plugin->hook_subscribe_feed($contents, $url, $auth_login, $auth_pass);
1696                 }
1697
1698                 if (is_html($contents)) {
1699                         $feedUrls = get_feeds_from_html($url, $contents);
1700
1701                         if (count($feedUrls) == 0) {
1702                                 return array("code" => 3);
1703                         } else if (count($feedUrls) > 1) {
1704                                 return array("code" => 4, "feeds" => $feedUrls);
1705                         }
1706                         //use feed url as new URL
1707                         $url = key($feedUrls);
1708                 }
1709
1710                 if ($cat_id == "0" || !$cat_id) {
1711                         $cat_qpart = "NULL";
1712                 } else {
1713                         $cat_qpart = "'$cat_id'";
1714                 }
1715
1716                 $result = db_query(
1717                         "SELECT id FROM ttrss_feeds
1718                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1719
1720                 if (strlen(FEED_CRYPT_KEY) > 0) {
1721                         require_once "crypt.php";
1722                         $auth_pass = substr(encrypt_string($auth_pass), 0, 250);
1723                         $auth_pass_encrypted = 'true';
1724                 } else {
1725                         $auth_pass_encrypted = 'false';
1726                 }
1727
1728                 $auth_pass = db_escape_string($auth_pass);
1729
1730                 if (db_num_rows($result) == 0) {
1731                         $result = db_query(
1732                                 "INSERT INTO ttrss_feeds
1733                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method,auth_pass_encrypted)
1734                                 VALUES ('".$_SESSION["uid"]."', '$url',
1735                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0, $auth_pass_encrypted)");
1736
1737                         $result = db_query(
1738                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1739                                         AND owner_uid = " . $_SESSION["uid"]);
1740
1741                         $feed_id = db_fetch_result($result, 0, "id");
1742
1743                         if ($feed_id) {
1744                                 set_basic_feed_info($feed_id);
1745                         }
1746
1747                         return array("code" => 1);
1748                 } else {
1749                         return array("code" => 0);
1750                 }
1751         }
1752
1753         function print_feed_select($id, $default_id = "",
1754                 $attributes = "", $include_all_feeds = true,
1755                 $root_id = false, $nest_level = 0) {
1756
1757                 if (!$root_id) {
1758                         print "<select id=\"$id\" name=\"$id\" $attributes>";
1759                         if ($include_all_feeds) {
1760                                 $is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
1761                                 print "<option $is_selected value=\"0\">".__('All feeds')."</option>";
1762                         }
1763                 }
1764
1765                 if (get_pref('ENABLE_FEED_CATS')) {
1766
1767                         if ($root_id)
1768                                 $parent_qpart = "parent_cat = '$root_id'";
1769                         else
1770                                 $parent_qpart = "parent_cat IS NULL";
1771
1772                         $result = db_query("SELECT id,title,
1773                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1774                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1775                                 FROM ttrss_feed_categories
1776                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1777
1778                         while ($line = db_fetch_assoc($result)) {
1779
1780                                 for ($i = 0; $i < $nest_level; $i++)
1781                                         $line["title"] = " - " . $line["title"];
1782
1783                                 $is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
1784
1785                                 printf("<option $is_selected value='CAT:%d'>%s</option>",
1786                                         $line["id"], htmlspecialchars($line["title"]));
1787
1788                                 if ($line["num_children"] > 0)
1789                                         print_feed_select($id, $default_id, $attributes,
1790                                                 $include_all_feeds, $line["id"], $nest_level+1);
1791
1792                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1793                                         WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1794
1795                                 while ($fline = db_fetch_assoc($feed_result)) {
1796                                         $is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
1797
1798                                         $fline["title"] = " + " . $fline["title"];
1799
1800                                         for ($i = 0; $i < $nest_level; $i++)
1801                                                 $fline["title"] = " - " . $fline["title"];
1802
1803                                         printf("<option $is_selected value='%d'>%s</option>",
1804                                                 $fline["id"], htmlspecialchars($fline["title"]));
1805                                 }
1806                         }
1807
1808                         if (!$root_id) {
1809                                 $default_is_cat = ($default_id == "CAT:0");
1810                                 $is_selected = $default_is_cat ? "selected=\"1\"" : "";
1811
1812                                 printf("<option $is_selected value='CAT:0'>%s</option>",
1813                                         __("Uncategorized"));
1814
1815                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1816                                         WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1817
1818                                 while ($fline = db_fetch_assoc($feed_result)) {
1819                                         $is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
1820
1821                                         $fline["title"] = " + " . $fline["title"];
1822
1823                                         for ($i = 0; $i < $nest_level; $i++)
1824                                                 $fline["title"] = " - " . $fline["title"];
1825
1826                                         printf("<option $is_selected value='%d'>%s</option>",
1827                                                 $fline["id"], htmlspecialchars($fline["title"]));
1828                                 }
1829                         }
1830
1831                 } else {
1832                         $result = db_query("SELECT id,title FROM ttrss_feeds
1833                                 WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1834
1835                         while ($line = db_fetch_assoc($result)) {
1836
1837                                 $is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
1838
1839                                 printf("<option $is_selected value='%d'>%s</option>",
1840                                         $line["id"], htmlspecialchars($line["title"]));
1841                         }
1842                 }
1843
1844                 if (!$root_id) {
1845                         print "</select>";
1846                 }
1847         }
1848
1849         function print_feed_cat_select($id, $default_id,
1850                 $attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
1851
1852                         if (!$root_id) {
1853                                         print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1854                         }
1855
1856                         if ($root_id)
1857                                 $parent_qpart = "parent_cat = '$root_id'";
1858                         else
1859                                 $parent_qpart = "parent_cat IS NULL";
1860
1861                         $result = db_query("SELECT id,title,
1862                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1863                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1864                                 FROM ttrss_feed_categories
1865                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1866
1867                         while ($line = db_fetch_assoc($result)) {
1868                                 if ($line["id"] == $default_id) {
1869                                         $is_selected = "selected=\"1\"";
1870                                 } else {
1871                                         $is_selected = "";
1872                                 }
1873
1874                                 for ($i = 0; $i < $nest_level; $i++)
1875                                         $line["title"] = " - " . $line["title"];
1876
1877                                 if ($line["title"])
1878                                         printf("<option $is_selected value='%d'>%s</option>",
1879                                                 $line["id"], htmlspecialchars($line["title"]));
1880
1881                                 if ($line["num_children"] > 0)
1882                                         print_feed_cat_select($id, $default_id, $attributes,
1883                                                 $include_all_cats, $line["id"], $nest_level+1);
1884                         }
1885
1886                         if (!$root_id) {
1887                                 if ($include_all_cats) {
1888                                         if (db_num_rows($result) > 0) {
1889                                                 print "<option disabled=\"1\">--------</option>";
1890                                         }
1891
1892                                         if ($default_id == 0) {
1893                                                 $is_selected = "selected=\"1\"";
1894                                         } else {
1895                                                 $is_selected = "";
1896                                         }
1897
1898                                         print "<option $is_selected value=\"0\">".__('Uncategorized')."</option>";
1899                                 }
1900                                 print "</select>";
1901                         }
1902                 }
1903
1904         function checkbox_to_sql_bool($val) {
1905                 return ($val == "on") ? "true" : "false";
1906         }
1907
1908         function getFeedCatTitle($id) {
1909                 if ($id == -1) {
1910                         return __("Special");
1911                 } else if ($id < LABEL_BASE_INDEX) {
1912                         return __("Labels");
1913                 } else if ($id > 0) {
1914                         $result = db_query("SELECT ttrss_feed_categories.title
1915                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
1916                                         cat_id = ttrss_feed_categories.id");
1917                         if (db_num_rows($result) == 1) {
1918                                 return db_fetch_result($result, 0, "title");
1919                         } else {
1920                                 return __("Uncategorized");
1921                         }
1922                 } else {
1923                         return "getFeedCatTitle($id) failed";
1924                 }
1925
1926         }
1927
1928         function getFeedIcon($id) {
1929                 switch ($id) {
1930                 case 0:
1931                         return "images/archive.png";
1932                         break;
1933                 case -1:
1934                         return "images/star.png";
1935                         break;
1936                 case -2:
1937                         return "images/feed.png";
1938                         break;
1939                 case -3:
1940                         return "images/fresh.png";
1941                         break;
1942                 case -4:
1943                         return "images/folder.png";
1944                         break;
1945                 case -6:
1946                         return "images/time.png";
1947                         break;
1948                 default:
1949                         if ($id < LABEL_BASE_INDEX) {
1950                                 return "images/label.png";
1951                         } else {
1952                                 if (file_exists(ICONS_DIR . "/$id.ico"))
1953                                         return ICONS_URL . "/$id.ico";
1954                         }
1955                         break;
1956                 }
1957
1958                 return false;
1959         }
1960
1961         function getFeedTitle($id, $cat = false) {
1962                 if ($cat) {
1963                         return getCategoryTitle($id);
1964                 } else if ($id == -1) {
1965                         return __("Starred articles");
1966                 } else if ($id == -2) {
1967                         return __("Published articles");
1968                 } else if ($id == -3) {
1969                         return __("Fresh articles");
1970                 } else if ($id == -4) {
1971                         return __("All articles");
1972                 } else if ($id === 0 || $id === "0") {
1973                         return __("Archived articles");
1974                 } else if ($id == -6) {
1975                         return __("Recently read");
1976                 } else if ($id < LABEL_BASE_INDEX) {
1977                         $label_id = feed_to_label_id($id);
1978                         $result = db_query("SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
1979                         if (db_num_rows($result) == 1) {
1980                                 return db_fetch_result($result, 0, "caption");
1981                         } else {
1982                                 return "Unknown label ($label_id)";
1983                         }
1984
1985                 } else if (is_numeric($id) && $id > 0) {
1986                         $result = db_query("SELECT title FROM ttrss_feeds WHERE id = '$id'");
1987                         if (db_num_rows($result) == 1) {
1988                                 return db_fetch_result($result, 0, "title");
1989                         } else {
1990                                 return "Unknown feed ($id)";
1991                         }
1992                 } else {
1993                         return $id;
1994                 }
1995         }
1996
1997         // TODO: less dumb splitting
1998         require_once "functions2.php";
1999
2000 ?>