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[tt-rss.git] / include / functions.php
1 <?php
2 define('EXPECTED_CONFIG_VERSION', 26);
3 define('SCHEMA_VERSION', 130);
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 $result = db_query("DELETE FROM ttrss_user_entries
252 USING ttrss_entries
253 WHERE ttrss_entries.id = ref_id AND
254 marked = false AND
255 feed_id = '$feed_id' AND
256 $query_limit
257 ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
258
259 } else {
260
261 /* $result = db_query("DELETE FROM ttrss_user_entries WHERE
262 marked = false AND feed_id = '$feed_id' AND
263 (SELECT date_updated FROM ttrss_entries WHERE
264 id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
265
266 $result = db_query("DELETE FROM ttrss_user_entries
267 USING ttrss_user_entries, ttrss_entries
268 WHERE ttrss_entries.id = ref_id AND
269 marked = false AND
270 feed_id = '$feed_id' AND
271 $query_limit
272 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
273 }
274
275 $rows = db_affected_rows($result);
276
277 ccache_update($feed_id, $owner_uid);
278
279 if ($debug) {
280 _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
281 }
282
283 return $rows;
284 } // function purge_feed
285
286 function feed_purge_interval($feed_id) {
287
288 $result = db_query("SELECT purge_interval, owner_uid FROM ttrss_feeds
289 WHERE id = '$feed_id'");
290
291 if (db_num_rows($result) == 1) {
292 $purge_interval = db_fetch_result($result, 0, "purge_interval");
293 $owner_uid = db_fetch_result($result, 0, "owner_uid");
294
295 if ($purge_interval == 0) $purge_interval = get_pref(
296 'PURGE_OLD_DAYS', $owner_uid);
297
298 return $purge_interval;
299
300 } else {
301 return -1;
302 }
303 }
304
305 function purge_orphans($do_output = false) {
306
307 // purge orphaned posts in main content table
308 $result = db_query("DELETE FROM ttrss_entries WHERE
309 NOT EXISTS (SELECT ref_id FROM ttrss_user_entries WHERE ref_id = id)");
310
311 if ($do_output) {
312 $rows = db_affected_rows($result);
313 _debug("Purged $rows orphaned posts.");
314 }
315 }
316
317 function get_feed_update_interval($feed_id) {
318 $result = db_query("SELECT owner_uid, update_interval FROM
319 ttrss_feeds WHERE id = '$feed_id'");
320
321 if (db_num_rows($result) == 1) {
322 $update_interval = db_fetch_result($result, 0, "update_interval");
323 $owner_uid = db_fetch_result($result, 0, "owner_uid");
324
325 if ($update_interval != 0) {
326 return $update_interval;
327 } else {
328 return get_pref('DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
329 }
330
331 } else {
332 return -1;
333 }
334 }
335
336 // TODO: deprecated, remove
337 function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false,
338 $timeout = false, $timestamp = 0, $useragent = false) {
339
340 $options = array(
341 "url" => $url,
342 "type" => $type,
343 "login" => $login,
344 "pass" => $pass,
345 "post_query" => $post_query,
346 "timeout" => $timeout,
347 "timestamp" => $timestamp,
348 "useragent" => $useragent
349 );
350
351 return fetch_file_contents2($options);
352 }
353
354 function fetch_file_contents2($options) {
355
356 global $fetch_last_error;
357 global $fetch_last_error_code;
358 global $fetch_last_error_content;
359 global $fetch_last_content_type;
360 global $fetch_curl_used;
361
362 $url = $options["url"];
363 $type = isset($options["type"]) ? $options["type"] : false;
364 $login = isset($options["login"]) ? $options["login"] : false;
365 $pass = isset($options["pass"]) ? $options["pass"] : false;
366 $post_query = isset($options["post_query"]) ? $options["post_query"] : false;
367 $timeout = isset($options["timeout"]) ? $options["timeout"] : false;
368 $timestamp = isset($options["timestamp"]) ? $options["timestamp"] : 0;
369 $useragent = isset($options["useragent"]) ? $options["useragent"] : false;
370
371 $url = ltrim($url, ' ');
372 $url = str_replace(' ', '%20', $url);
373
374 if (strpos($url, "//") === 0)
375 $url = 'http:' . $url;
376
377 if (!defined('NO_CURL') && function_exists('curl_init') && !ini_get("open_basedir")) {
378
379 $fetch_curl_used = true;
380
381 $ch = curl_init($url);
382
383 if ($timestamp && !$post_query) {
384 curl_setopt($ch, CURLOPT_HTTPHEADER,
385 array("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $timestamp)));
386 }
387
388 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
389 curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
390 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir"));
391 curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
392 curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
393 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
394 curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
395 curl_setopt($ch, CURLOPT_USERAGENT, $useragent ? $useragent :
396 SELF_USER_AGENT);
397 curl_setopt($ch, CURLOPT_ENCODING, "");
398 //curl_setopt($ch, CURLOPT_REFERER, $url);
399
400 if (!ini_get("open_basedir")) {
401 curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null");
402 }
403
404 if (defined('_CURL_HTTP_PROXY')) {
405 curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);
406 }
407
408 if ($post_query) {
409 curl_setopt($ch, CURLOPT_POST, true);
410 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
411 }
412
413 if ($login && $pass)
414 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
415
416 $contents = @curl_exec($ch);
417
418 if (curl_errno($ch) === 23 || curl_errno($ch) === 61) {
419 curl_setopt($ch, CURLOPT_ENCODING, 'none');
420 $contents = @curl_exec($ch);
421 }
422
423 if ($contents === false) {
424 $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
425 curl_close($ch);
426 return false;
427 }
428
429 $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
430 $fetch_last_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
431
432 $fetch_last_error_code = $http_code;
433
434 if ($http_code != 200 || $type && strpos($fetch_last_content_type, "$type") === false) {
435 if (curl_errno($ch) != 0) {
436 $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
437 } else {
438 $fetch_last_error = "HTTP Code: $http_code";
439 }
440 $fetch_last_error_content = $contents;
441 curl_close($ch);
442 return false;
443 }
444
445 curl_close($ch);
446
447 return $contents;
448 } else {
449
450 $fetch_curl_used = false;
451
452 if ($login && $pass){
453 $url_parts = array();
454
455 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
456
457 $pass = urlencode($pass);
458
459 if ($url_parts[1] && $url_parts[2]) {
460 $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
461 }
462 }
463
464 if (!$post_query && $timestamp) {
465 $context = stream_context_create(array(
466 'http' => array(
467 'method' => 'GET',
468 'protocol_version'=> 1.1,
469 'header' => "If-Modified-Since: ".gmdate("D, d M Y H:i:s \\G\\M\\T\r\n", $timestamp)
470 )));
471 } else {
472 $context = stream_context_create(array(
473 'http' => array(
474 'method' => 'GET',
475 'protocol_version'=> 1.1
476 )));
477 }
478
479 $old_error = error_get_last();
480
481 $data = @file_get_contents($url, false, $context);
482
483 $fetch_last_content_type = false; // reset if no type was sent from server
484 if (isset($http_response_header) && is_array($http_response_header)) {
485 foreach ($http_response_header as $h) {
486 if (substr(strtolower($h), 0, 13) == 'content-type:') {
487 $fetch_last_content_type = substr($h, 14);
488 // don't abort here b/c there might be more than one
489 // e.g. if we were being redirected -- last one is the right one
490 }
491
492 if (substr(strtolower($h), 0, 7) == 'http/1.') {
493 $fetch_last_error_code = (int) substr($h, 9, 3);
494 }
495 }
496 }
497
498 if (!$data) {
499 $error = error_get_last();
500
501 if ($error['message'] != $old_error['message']) {
502 $fetch_last_error = $error["message"];
503 } else {
504 $fetch_last_error = "HTTP Code: $fetch_last_error_code";
505 }
506 }
507 return $data;
508 }
509
510 }
511
512 /**
513 * Try to determine the favicon URL for a feed.
514 * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
515 * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
516 *
517 * @param string $url A feed or page URL
518 * @access public
519 * @return mixed The favicon URL, or false if none was found.
520 */
521 function get_favicon_url($url) {
522
523 $favicon_url = false;
524
525 if ($html = @fetch_file_contents($url)) {
526
527 libxml_use_internal_errors(true);
528
529 $doc = new DOMDocument();
530 $doc->loadHTML($html);
531 $xpath = new DOMXPath($doc);
532
533 $base = $xpath->query('/html/head/base');
534 foreach ($base as $b) {
535 $url = $b->getAttribute("href");
536 break;
537 }
538
539 $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
540 if (count($entries) > 0) {
541 foreach ($entries as $entry) {
542 $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
543 break;
544 }
545 }
546 }
547
548 if (!$favicon_url)
549 $favicon_url = rewrite_relative_url($url, "/favicon.ico");
550
551 return $favicon_url;
552 } // function get_favicon_url
553
554 function check_feed_favicon($site_url, $feed) {
555 # print "FAVICON [$site_url]: $favicon_url\n";
556
557 $icon_file = ICONS_DIR . "/$feed.ico";
558
559 if (!file_exists($icon_file)) {
560 $favicon_url = get_favicon_url($site_url);
561
562 if ($favicon_url) {
563 // Limiting to "image" type misses those served with text/plain
564 $contents = fetch_file_contents($favicon_url); // , "image");
565
566 if ($contents) {
567 // Crude image type matching.
568 // Patterns gleaned from the file(1) source code.
569 if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
570 // 0 string \000\000\001\000 MS Windows icon resource
571 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
572 }
573 elseif (preg_match('/^GIF8/', $contents)) {
574 // 0 string GIF8 GIF image data
575 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
576 }
577 elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
578 // 0 string \x89PNG\x0d\x0a\x1a\x0a PNG image data
579 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
580 }
581 elseif (preg_match('/^\xff\xd8/', $contents)) {
582 // 0 beshort 0xffd8 JPEG image data
583 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
584 }
585 else {
586 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
587 $contents = "";
588 }
589 }
590
591 if ($contents) {
592 $fp = @fopen($icon_file, "w");
593
594 if ($fp) {
595 fwrite($fp, $contents);
596 fclose($fp);
597 chmod($icon_file, 0644);
598 }
599 }
600 }
601 return $icon_file;
602 }
603 }
604
605 function print_select($id, $default, $values, $attributes = "", $name = "") {
606 if (!$name) $name = $id;
607
608 print "<select name=\"$name\" id=\"$id\" $attributes>";
609 foreach ($values as $v) {
610 if ($v == $default)
611 $sel = "selected=\"1\"";
612 else
613 $sel = "";
614
615 $v = trim($v);
616
617 print "<option value=\"$v\" $sel>$v</option>";
618 }
619 print "</select>";
620 }
621
622 function print_select_hash($id, $default, $values, $attributes = "", $name = "") {
623 if (!$name) $name = $id;
624
625 print "<select name=\"$name\" id='$id' $attributes>";
626 foreach (array_keys($values) as $v) {
627 if ($v == $default)
628 $sel = 'selected="selected"';
629 else
630 $sel = "";
631
632 $v = trim($v);
633
634 print "<option $sel value=\"$v\">".$values[$v]."</option>";
635 }
636
637 print "</select>";
638 }
639
640 function print_radio($id, $default, $true_is, $values, $attributes = "") {
641 foreach ($values as $v) {
642
643 if ($v == $default)
644 $sel = "checked";
645 else
646 $sel = "";
647
648 if ($v == $true_is) {
649 $sel .= " value=\"1\"";
650 } else {
651 $sel .= " value=\"0\"";
652 }
653
654 print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
655 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
656
657 }
658 }
659
660 function initialize_user_prefs($uid, $profile = false) {
661
662 $uid = db_escape_string($uid);
663
664 if (!$profile) {
665 $profile = "NULL";
666 $profile_qpart = "AND profile IS NULL";
667 } else {
668 $profile_qpart = "AND profile = '$profile'";
669 }
670
671 if (get_schema_version() < 63) $profile_qpart = "";
672
673 db_query("BEGIN");
674
675 $result = db_query("SELECT pref_name,def_value FROM ttrss_prefs");
676
677 $u_result = db_query("SELECT pref_name
678 FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
679
680 $active_prefs = array();
681
682 while ($line = db_fetch_assoc($u_result)) {
683 array_push($active_prefs, $line["pref_name"]);
684 }
685
686 while ($line = db_fetch_assoc($result)) {
687 if (array_search($line["pref_name"], $active_prefs) === FALSE) {
688 // print "adding " . $line["pref_name"] . "<br>";
689
690 $line["def_value"] = db_escape_string($line["def_value"]);
691 $line["pref_name"] = db_escape_string($line["pref_name"]);
692
693 if (get_schema_version() < 63) {
694 db_query("INSERT INTO ttrss_user_prefs
695 (owner_uid,pref_name,value) VALUES
696 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
697
698 } else {
699 db_query("INSERT INTO ttrss_user_prefs
700 (owner_uid,pref_name,value, profile) VALUES
701 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
702 }
703
704 }
705 }
706
707 db_query("COMMIT");
708
709 }
710
711 function get_ssl_certificate_id() {
712 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
713 return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
714 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
715 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
716 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
717 }
718 if ($_SERVER["SSL_CLIENT_M_SERIAL"]) {
719 return sha1($_SERVER["SSL_CLIENT_M_SERIAL"] .
720 $_SERVER["SSL_CLIENT_V_START"] .
721 $_SERVER["SSL_CLIENT_V_END"] .
722 $_SERVER["SSL_CLIENT_S_DN"]);
723 }
724 return "";
725 }
726
727 function authenticate_user($login, $password, $check_only = false) {
728
729 if (!SINGLE_USER_MODE) {
730 $user_id = false;
731
732 foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) {
733
734 $user_id = (int) $plugin->authenticate($login, $password);
735
736 if ($user_id) {
737 $_SESSION["auth_module"] = strtolower(get_class($plugin));
738 break;
739 }
740 }
741
742 if ($user_id && !$check_only) {
743 @session_start();
744
745 $_SESSION["uid"] = $user_id;
746 $_SESSION["version"] = VERSION_STATIC;
747
748 $result = db_query("SELECT login,access_level,pwd_hash FROM ttrss_users
749 WHERE id = '$user_id'");
750
751 $_SESSION["name"] = db_fetch_result($result, 0, "login");
752 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
753 $_SESSION["csrf_token"] = uniqid_short();
754
755 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
756 $_SESSION["uid"]);
757
758 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
759 $_SESSION["user_agent"] = sha1($_SERVER['HTTP_USER_AGENT']);
760 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
761
762 $_SESSION["last_version_check"] = time();
763
764 initialize_user_prefs($_SESSION["uid"]);
765
766 return true;
767 }
768
769 return false;
770
771 } else {
772
773 $_SESSION["uid"] = 1;
774 $_SESSION["name"] = "admin";
775 $_SESSION["access_level"] = 10;
776
777 $_SESSION["hide_hello"] = true;
778 $_SESSION["hide_logout"] = true;
779
780 $_SESSION["auth_module"] = false;
781
782 if (!$_SESSION["csrf_token"]) {
783 $_SESSION["csrf_token"] = uniqid_short();
784 }
785
786 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
787
788 initialize_user_prefs($_SESSION["uid"]);
789
790 return true;
791 }
792 }
793
794 function make_password($length = 8) {
795
796 $password = "";
797 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
798
799 $i = 0;
800
801 while ($i < $length) {
802 $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
803
804 if (!strstr($password, $char)) {
805 $password .= $char;
806 $i++;
807 }
808 }
809 return $password;
810 }
811
812 // this is called after user is created to initialize default feeds, labels
813 // or whatever else
814
815 // user preferences are checked on every login, not here
816
817 function initialize_user($uid) {
818
819 db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
820 values ('$uid', 'Tiny Tiny RSS: Forum',
821 'http://tt-rss.org/forum/rss.php')");
822 }
823
824 function logout_user() {
825 session_destroy();
826 if (isset($_COOKIE[session_name()])) {
827 setcookie(session_name(), '', time()-42000, '/');
828 }
829 }
830
831 function validate_csrf($csrf_token) {
832 return $csrf_token == $_SESSION['csrf_token'];
833 }
834
835 function load_user_plugins($owner_uid) {
836 if ($owner_uid && SCHEMA_VERSION >= 100) {
837 $plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
838
839 PluginHost::getInstance()->load($plugins, PluginHost::KIND_USER, $owner_uid);
840
841 if (get_schema_version() > 100) {
842 PluginHost::getInstance()->load_data();
843 }
844 }
845 }
846
847 function login_sequence() {
848 if (SINGLE_USER_MODE) {
849 @session_start();
850 authenticate_user("admin", null);
851 startup_gettext();
852 load_user_plugins($_SESSION["uid"]);
853 } else {
854 if (!validate_session()) $_SESSION["uid"] = false;
855
856 if (!$_SESSION["uid"]) {
857
858 if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) {
859 $_SESSION["ref_schema_version"] = get_schema_version(true);
860 } else {
861 authenticate_user(null, null, true);
862 }
863
864 if (!$_SESSION["uid"]) {
865 @session_destroy();
866 setcookie(session_name(), '', time()-42000, '/');
867
868 render_login_form();
869 exit;
870 }
871
872 } else {
873 /* bump login timestamp */
874 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
875 $_SESSION["uid"]);
876 $_SESSION["last_login_update"] = time();
877 }
878
879 if ($_SESSION["uid"]) {
880 startup_gettext();
881 load_user_plugins($_SESSION["uid"]);
882
883 /* cleanup ccache */
884
885 db_query("DELETE FROM ttrss_counters_cache WHERE owner_uid = ".
886 $_SESSION["uid"] . " AND
887 (SELECT COUNT(id) FROM ttrss_feeds WHERE
888 ttrss_feeds.id = feed_id) = 0");
889
890 db_query("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ".
891 $_SESSION["uid"] . " AND
892 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
893 ttrss_feed_categories.id = feed_id) = 0");
894
895 }
896
897 }
898 }
899
900 function truncate_string($str, $max_len, $suffix = '&hellip;') {
901 if (mb_strlen($str, "utf-8") > $max_len) {
902 return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
903 } else {
904 return $str;
905 }
906 }
907
908 // is not utf8 clean
909 function truncate_middle($str, $max_len, $suffix = '&hellip;') {
910 if (strlen($str) > $max_len) {
911 return substr_replace($str, $suffix, $max_len / 2, mb_strlen($str) - $max_len);
912 } else {
913 return $str;
914 }
915 }
916
917 function convert_timestamp($timestamp, $source_tz, $dest_tz) {
918
919 try {
920 $source_tz = new DateTimeZone($source_tz);
921 } catch (Exception $e) {
922 $source_tz = new DateTimeZone('UTC');
923 }
924
925 try {
926 $dest_tz = new DateTimeZone($dest_tz);
927 } catch (Exception $e) {
928 $dest_tz = new DateTimeZone('UTC');
929 }
930
931 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
932 return $dt->format('U') + $dest_tz->getOffset($dt);
933 }
934
935 function make_local_datetime($timestamp, $long, $owner_uid = false,
936 $no_smart_dt = false, $eta_min = false) {
937
938 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
939 if (!$timestamp) $timestamp = '1970-01-01 0:00';
940
941 global $utc_tz;
942 global $user_tz;
943
944 if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
945
946 $timestamp = substr($timestamp, 0, 19);
947
948 # We store date in UTC internally
949 $dt = new DateTime($timestamp, $utc_tz);
950
951 $user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
952
953 if ($user_tz_string != 'Automatic') {
954
955 try {
956 if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
957 } catch (Exception $e) {
958 $user_tz = $utc_tz;
959 }
960
961 $tz_offset = $user_tz->getOffset($dt);
962 } else {
963 $tz_offset = (int) -$_SESSION["clientTzOffset"];
964 }
965
966 $user_timestamp = $dt->format('U') + $tz_offset;
967
968 if (!$no_smart_dt) {
969 return smart_date_time($user_timestamp,
970 $tz_offset, $owner_uid, $eta_min);
971 } else {
972 if ($long)
973 $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
974 else
975 $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
976
977 return date($format, $user_timestamp);
978 }
979 }
980
981 function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false, $eta_min = false) {
982 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
983
984 if ($eta_min && time() + $tz_offset - $timestamp < 3600) {
985 return T_sprintf("%d min", date("i", time() + $tz_offset - $timestamp));
986 } else if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
987 return date("G:i", $timestamp);
988 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
989 $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
990 return date($format, $timestamp);
991 } else {
992 $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
993 return date($format, $timestamp);
994 }
995 }
996
997 function sql_bool_to_bool($s) {
998 if ($s == "t" || $s == "1" || strtolower($s) == "true") {
999 return true;
1000 } else {
1001 return false;
1002 }
1003 }
1004
1005 function bool_to_sql_bool($s) {
1006 if ($s) {
1007 return "true";
1008 } else {
1009 return "false";
1010 }
1011 }
1012
1013 // Session caching removed due to causing wrong redirects to upgrade
1014 // script when get_schema_version() is called on an obsolete session
1015 // created on a previous schema version.
1016 function get_schema_version($nocache = false) {
1017 global $schema_version;
1018
1019 if (!$schema_version && !$nocache) {
1020 $result = db_query("SELECT schema_version FROM ttrss_version");
1021 $version = db_fetch_result($result, 0, "schema_version");
1022 $schema_version = $version;
1023 return $version;
1024 } else {
1025 return $schema_version;
1026 }
1027 }
1028
1029 function sanity_check() {
1030 require_once 'errors.php';
1031 global $ERRORS;
1032
1033 $error_code = 0;
1034 $schema_version = get_schema_version(true);
1035
1036 if ($schema_version != SCHEMA_VERSION) {
1037 $error_code = 5;
1038 }
1039
1040 if (DB_TYPE == "mysql") {
1041 $result = db_query("SELECT true", false);
1042 if (db_num_rows($result) != 1) {
1043 $error_code = 10;
1044 }
1045 }
1046
1047 if (db_escape_string("testTEST") != "testTEST") {
1048 $error_code = 12;
1049 }
1050
1051 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1052 }
1053
1054 function file_is_locked($filename) {
1055 if (file_exists(LOCK_DIRECTORY . "/$filename")) {
1056 if (function_exists('flock')) {
1057 $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1058 if ($fp) {
1059 if (flock($fp, LOCK_EX | LOCK_NB)) {
1060 flock($fp, LOCK_UN);
1061 fclose($fp);
1062 return false;
1063 }
1064 fclose($fp);
1065 return true;
1066 } else {
1067 return false;
1068 }
1069 }
1070 return true; // consider the file always locked and skip the test
1071 } else {
1072 return false;
1073 }
1074 }
1075
1076
1077 function make_lockfile($filename) {
1078 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1079
1080 if ($fp && flock($fp, LOCK_EX | LOCK_NB)) {
1081 $stat_h = fstat($fp);
1082 $stat_f = stat(LOCK_DIRECTORY . "/$filename");
1083
1084 if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
1085 if ($stat_h["ino"] != $stat_f["ino"] ||
1086 $stat_h["dev"] != $stat_f["dev"]) {
1087
1088 return false;
1089 }
1090 }
1091
1092 if (function_exists('posix_getpid')) {
1093 fwrite($fp, posix_getpid() . "\n");
1094 }
1095 return $fp;
1096 } else {
1097 return false;
1098 }
1099 }
1100
1101 function make_stampfile($filename) {
1102 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1103
1104 if (flock($fp, LOCK_EX | LOCK_NB)) {
1105 fwrite($fp, time() . "\n");
1106 flock($fp, LOCK_UN);
1107 fclose($fp);
1108 return true;
1109 } else {
1110 return false;
1111 }
1112 }
1113
1114 function sql_random_function() {
1115 if (DB_TYPE == "mysql") {
1116 return "RAND()";
1117 } else {
1118 return "RANDOM()";
1119 }
1120 }
1121
1122 function catchup_feed($feed, $cat_view, $owner_uid = false, $max_id = false, $mode = 'all') {
1123
1124 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1125
1126 //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1127
1128 // Todo: all this interval stuff needs some generic generator function
1129
1130 $date_qpart = "false";
1131
1132 switch ($mode) {
1133 case "1day":
1134 if (DB_TYPE == "pgsql") {
1135 $date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
1136 } else {
1137 $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
1138 }
1139 break;
1140 case "1week":
1141 if (DB_TYPE == "pgsql") {
1142 $date_qpart = "date_entered < NOW() - INTERVAL '1 week' ";
1143 } else {
1144 $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 WEEK) ";
1145 }
1146 break;
1147 case "2week":
1148 if (DB_TYPE == "pgsql") {
1149 $date_qpart = "date_entered < NOW() - INTERVAL '2 week' ";
1150 } else {
1151 $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 2 WEEK) ";
1152 }
1153 break;
1154 default:
1155 $date_qpart = "true";
1156 }
1157
1158 if (is_numeric($feed)) {
1159 if ($cat_view) {
1160
1161 if ($feed >= 0) {
1162
1163 if ($feed > 0) {
1164 $children = getChildCategories($feed, $owner_uid);
1165 array_push($children, $feed);
1166
1167 $children = join(",", $children);
1168
1169 $cat_qpart = "cat_id IN ($children)";
1170 } else {
1171 $cat_qpart = "cat_id IS NULL";
1172 }
1173
1174 db_query("UPDATE ttrss_user_entries
1175 SET unread = false, last_read = NOW() WHERE ref_id IN
1176 (SELECT id FROM
1177 (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1178 AND owner_uid = $owner_uid AND unread = true AND feed_id IN
1179 (SELECT id FROM ttrss_feeds WHERE $cat_qpart) AND $date_qpart) as tmp)");
1180
1181 } else if ($feed == -2) {
1182
1183 db_query("UPDATE ttrss_user_entries
1184 SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1185 FROM ttrss_user_labels2, ttrss_entries WHERE article_id = ref_id AND id = ref_id AND $date_qpart) > 0
1186 AND unread = true AND owner_uid = $owner_uid");
1187 }
1188
1189 } else if ($feed > 0) {
1190
1191 db_query("UPDATE ttrss_user_entries
1192 SET unread = false, last_read = NOW() WHERE ref_id IN
1193 (SELECT id FROM
1194 (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1195 AND owner_uid = $owner_uid AND unread = true AND feed_id = $feed AND $date_qpart) as tmp)");
1196
1197 } else if ($feed < 0 && $feed > LABEL_BASE_INDEX) { // special, like starred
1198
1199 if ($feed == -1) {
1200 db_query("UPDATE ttrss_user_entries
1201 SET unread = false, last_read = NOW() WHERE ref_id IN
1202 (SELECT id FROM
1203 (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1204 AND owner_uid = $owner_uid AND unread = true AND marked = true AND $date_qpart) as tmp)");
1205 }
1206
1207 if ($feed == -2) {
1208 db_query("UPDATE ttrss_user_entries
1209 SET unread = false, last_read = NOW() WHERE ref_id IN
1210 (SELECT id FROM
1211 (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1212 AND owner_uid = $owner_uid AND unread = true AND published = true AND $date_qpart) as tmp)");
1213 }
1214
1215 if ($feed == -3) {
1216
1217 $intl = get_pref("FRESH_ARTICLE_MAX_AGE");
1218
1219 if (DB_TYPE == "pgsql") {
1220 $match_part = "date_entered > NOW() - INTERVAL '$intl hour' ";
1221 } else {
1222 $match_part = "date_entered > DATE_SUB(NOW(),
1223 INTERVAL $intl HOUR) ";
1224 }
1225
1226 db_query("UPDATE ttrss_user_entries
1227 SET unread = false, last_read = NOW() WHERE ref_id IN
1228 (SELECT id FROM
1229 (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1230 AND owner_uid = $owner_uid AND score >= 0 AND unread = true AND $date_qpart AND $match_part) as tmp)");
1231 }
1232
1233 if ($feed == -4) {
1234 db_query("UPDATE ttrss_user_entries
1235 SET unread = false, last_read = NOW() WHERE ref_id IN
1236 (SELECT id FROM
1237 (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1238 AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1239 }
1240
1241 } else if ($feed < LABEL_BASE_INDEX) { // label
1242
1243 $label_id = feed_to_label_id($feed);
1244
1245 db_query("UPDATE ttrss_user_entries
1246 SET unread = false, last_read = NOW() WHERE ref_id IN
1247 (SELECT id FROM
1248 (SELECT DISTINCT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_user_labels2 WHERE ref_id = id
1249 AND label_id = '$label_id' AND ref_id = article_id
1250 AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1251
1252 }
1253
1254 ccache_update($feed, $owner_uid, $cat_view);
1255
1256 } else { // tag
1257 db_query("UPDATE ttrss_user_entries
1258 SET unread = false, last_read = NOW() WHERE ref_id IN
1259 (SELECT id FROM
1260 (SELECT DISTINCT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_tags WHERE ref_id = ttrss_entries.id
1261 AND post_int_id = int_id AND tag_name = '$feed'
1262 AND ttrss_user_entries.owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1263
1264 }
1265 }
1266
1267 function getAllCounters() {
1268 $data = getGlobalCounters();
1269
1270 $data = array_merge($data, getVirtCounters());
1271 $data = array_merge($data, getLabelCounters());
1272 $data = array_merge($data, getFeedCounters());
1273 $data = array_merge($data, getCategoryCounters());
1274
1275 return $data;
1276 }
1277
1278 function getCategoryTitle($cat_id) {
1279
1280 if ($cat_id == -1) {
1281 return __("Special");
1282 } else if ($cat_id == -2) {
1283 return __("Labels");
1284 } else {
1285
1286 $result = db_query("SELECT title FROM ttrss_feed_categories WHERE
1287 id = '$cat_id'");
1288
1289 if (db_num_rows($result) == 1) {
1290 return db_fetch_result($result, 0, "title");
1291 } else {
1292 return __("Uncategorized");
1293 }
1294 }
1295 }
1296
1297
1298 function getCategoryCounters() {
1299 $ret_arr = array();
1300
1301 /* Labels category */
1302
1303 $cv = array("id" => -2, "kind" => "cat",
1304 "counter" => getCategoryUnread(-2));
1305
1306 array_push($ret_arr, $cv);
1307
1308 $result = db_query("SELECT id AS cat_id, value AS unread,
1309 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2
1310 WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
1311 FROM ttrss_feed_categories, ttrss_cat_counters_cache
1312 WHERE ttrss_cat_counters_cache.feed_id = id AND
1313 ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid AND
1314 ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1315
1316 while ($line = db_fetch_assoc($result)) {
1317 $line["cat_id"] = (int) $line["cat_id"];
1318
1319 if ($line["num_children"] > 0) {
1320 $child_counter = getCategoryChildrenUnread($line["cat_id"], $_SESSION["uid"]);
1321 } else {
1322 $child_counter = 0;
1323 }
1324
1325 $cv = array("id" => $line["cat_id"], "kind" => "cat",
1326 "counter" => $line["unread"] + $child_counter);
1327
1328 array_push($ret_arr, $cv);
1329 }
1330
1331 /* Special case: NULL category doesn't actually exist in the DB */
1332
1333 $cv = array("id" => 0, "kind" => "cat",
1334 "counter" => (int) ccache_find(0, $_SESSION["uid"], true));
1335
1336 array_push($ret_arr, $cv);
1337
1338 return $ret_arr;
1339 }
1340
1341 // only accepts real cats (>= 0)
1342 function getCategoryChildrenUnread($cat, $owner_uid = false) {
1343 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1344
1345 $result = db_query("SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
1346 AND owner_uid = $owner_uid");
1347
1348 $unread = 0;
1349
1350 while ($line = db_fetch_assoc($result)) {
1351 $unread += getCategoryUnread($line["id"], $owner_uid);
1352 $unread += getCategoryChildrenUnread($line["id"], $owner_uid);
1353 }
1354
1355 return $unread;
1356 }
1357
1358 function getCategoryUnread($cat, $owner_uid = false) {
1359
1360 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1361
1362 if ($cat >= 0) {
1363
1364 if ($cat != 0) {
1365 $cat_query = "cat_id = '$cat'";
1366 } else {
1367 $cat_query = "cat_id IS NULL";
1368 }
1369
1370 $result = db_query("SELECT id FROM ttrss_feeds WHERE $cat_query
1371 AND owner_uid = " . $owner_uid);
1372
1373 $cat_feeds = array();
1374 while ($line = db_fetch_assoc($result)) {
1375 array_push($cat_feeds, "feed_id = " . $line["id"]);
1376 }
1377
1378 if (count($cat_feeds) == 0) return 0;
1379
1380 $match_part = implode(" OR ", $cat_feeds);
1381
1382 $result = db_query("SELECT COUNT(int_id) AS unread
1383 FROM ttrss_user_entries
1384 WHERE unread = true AND ($match_part)
1385 AND owner_uid = " . $owner_uid);
1386
1387 $unread = 0;
1388
1389 # this needs to be rewritten
1390 while ($line = db_fetch_assoc($result)) {
1391 $unread += $line["unread"];
1392 }
1393
1394 return $unread;
1395 } else if ($cat == -1) {
1396 return getFeedUnread(-1) + getFeedUnread(-2) + getFeedUnread(-3) + getFeedUnread(0);
1397 } else if ($cat == -2) {
1398
1399 $result = db_query("
1400 SELECT COUNT(unread) AS unread FROM
1401 ttrss_user_entries, ttrss_user_labels2
1402 WHERE article_id = ref_id AND unread = true
1403 AND ttrss_user_entries.owner_uid = '$owner_uid'");
1404
1405 $unread = db_fetch_result($result, 0, "unread");
1406
1407 return $unread;
1408
1409 }
1410 }
1411
1412 function getFeedUnread($feed, $is_cat = false) {
1413 return getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]);
1414 }
1415
1416 function getLabelUnread($label_id, $owner_uid = false) {
1417 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1418
1419 $result = db_query("SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
1420 WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
1421
1422 if (db_num_rows($result) != 0) {
1423 return db_fetch_result($result, 0, "unread");
1424 } else {
1425 return 0;
1426 }
1427 }
1428
1429 function getFeedArticles($feed, $is_cat = false, $unread_only = false,
1430 $owner_uid = false) {
1431
1432 $n_feed = (int) $feed;
1433 $need_entries = false;
1434
1435 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1436
1437 if ($unread_only) {
1438 $unread_qpart = "unread = true";
1439 } else {
1440 $unread_qpart = "true";
1441 }
1442
1443 if ($is_cat) {
1444 return getCategoryUnread($n_feed, $owner_uid);
1445 } else if ($n_feed == -6) {
1446 return 0;
1447 } else if ($feed != "0" && $n_feed == 0) {
1448
1449 $feed = db_escape_string($feed);
1450
1451 $result = db_query("SELECT SUM((SELECT COUNT(int_id)
1452 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1453 AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
1454 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1455 return db_fetch_result($result, 0, "count");
1456
1457 } else if ($n_feed == -1) {
1458 $match_part = "marked = true";
1459 } else if ($n_feed == -2) {
1460 $match_part = "published = true";
1461 } else if ($n_feed == -3) {
1462 $match_part = "unread = true AND score >= 0";
1463
1464 $intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
1465
1466 if (DB_TYPE == "pgsql") {
1467 $match_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
1468 } else {
1469 $match_part .= " AND date_entered > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1470 }
1471
1472 $need_entries = true;
1473
1474 } else if ($n_feed == -4) {
1475 $match_part = "true";
1476 } else if ($n_feed >= 0) {
1477
1478 if ($n_feed != 0) {
1479 $match_part = "feed_id = '$n_feed'";
1480 } else {
1481 $match_part = "feed_id IS NULL";
1482 }
1483
1484 } else if ($feed < LABEL_BASE_INDEX) {
1485
1486 $label_id = feed_to_label_id($feed);
1487
1488 return getLabelUnread($label_id, $owner_uid);
1489
1490 }
1491
1492 if ($match_part) {
1493
1494 if ($need_entries) {
1495 $from_qpart = "ttrss_user_entries,ttrss_entries";
1496 $from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
1497 } else {
1498 $from_qpart = "ttrss_user_entries";
1499 $from_where = "";
1500 }
1501
1502 $query = "SELECT count(int_id) AS unread
1503 FROM $from_qpart WHERE
1504 $unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1505
1506 //echo "[$feed/$query]\n";
1507
1508 $result = db_query($query);
1509
1510 } else {
1511
1512 $result = db_query("SELECT COUNT(post_int_id) AS unread
1513 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1514 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1515 AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
1516 }
1517
1518 $unread = db_fetch_result($result, 0, "unread");
1519
1520 return $unread;
1521 }
1522
1523 function getGlobalUnread($user_id = false) {
1524
1525 if (!$user_id) {
1526 $user_id = $_SESSION["uid"];
1527 }
1528
1529 $result = db_query("SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1530 WHERE owner_uid = '$user_id' AND feed_id > 0");
1531
1532 $c_id = db_fetch_result($result, 0, "c_id");
1533
1534 return $c_id;
1535 }
1536
1537 function getGlobalCounters($global_unread = -1) {
1538 $ret_arr = array();
1539
1540 if ($global_unread == -1) {
1541 $global_unread = getGlobalUnread();
1542 }
1543
1544 $cv = array("id" => "global-unread",
1545 "counter" => (int) $global_unread);
1546
1547 array_push($ret_arr, $cv);
1548
1549 $result = db_query("SELECT COUNT(id) AS fn FROM
1550 ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1551
1552 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1553
1554 $cv = array("id" => "subscribed-feeds",
1555 "counter" => (int) $subscribed_feeds);
1556
1557 array_push($ret_arr, $cv);
1558
1559 return $ret_arr;
1560 }
1561
1562 function getVirtCounters() {
1563
1564 $ret_arr = array();
1565
1566 for ($i = 0; $i >= -4; $i--) {
1567
1568 $count = getFeedUnread($i);
1569
1570 if ($i == 0 || $i == -1 || $i == -2)
1571 $auxctr = getFeedArticles($i, false);
1572 else
1573 $auxctr = 0;
1574
1575 $cv = array("id" => $i,
1576 "counter" => (int) $count,
1577 "auxcounter" => $auxctr);
1578
1579 // if (get_pref('EXTENDED_FEEDLIST'))
1580 // $cv["xmsg"] = getFeedArticles($i)." ".__("total");
1581
1582 array_push($ret_arr, $cv);
1583 }
1584
1585 $feeds = PluginHost::getInstance()->get_feeds(-1);
1586
1587 if (is_array($feeds)) {
1588 foreach ($feeds as $feed) {
1589 $cv = array("id" => PluginHost::pfeed_to_feed_id($feed['id']),
1590 "counter" => $feed['sender']->get_unread($feed['id']));
1591
1592 if (method_exists($feed['sender'], 'get_total'))
1593 $cv["auxcounter"] = $feed['sender']->get_total($feed['id']);
1594
1595 array_push($ret_arr, $cv);
1596 }
1597 }
1598
1599 return $ret_arr;
1600 }
1601
1602 function getLabelCounters($descriptions = false) {
1603
1604 $ret_arr = array();
1605
1606 $owner_uid = $_SESSION["uid"];
1607
1608 $result = db_query("SELECT id,caption,SUM(CASE WHEN u1.unread = true THEN 1 ELSE 0 END) AS unread, COUNT(u1.unread) AS total
1609 FROM ttrss_labels2 LEFT JOIN ttrss_user_labels2 ON
1610 (ttrss_labels2.id = label_id)
1611 LEFT JOIN ttrss_user_entries AS u1 ON u1.ref_id = article_id
1612 WHERE ttrss_labels2.owner_uid = $owner_uid AND u1.owner_uid = $owner_uid
1613 GROUP BY ttrss_labels2.id,
1614 ttrss_labels2.caption");
1615
1616 while ($line = db_fetch_assoc($result)) {
1617
1618 $id = label_to_feed_id($line["id"]);
1619
1620 $cv = array("id" => $id,
1621 "counter" => (int) $line["unread"],
1622 "auxcounter" => (int) $line["total"]);
1623
1624 if ($descriptions)
1625 $cv["description"] = $line["caption"];
1626
1627 array_push($ret_arr, $cv);
1628 }
1629
1630 return $ret_arr;
1631 }
1632
1633 function getFeedCounters($active_feed = false) {
1634
1635 $ret_arr = array();
1636
1637 $query = "SELECT ttrss_feeds.id,
1638 ttrss_feeds.title,
1639 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1640 last_error, value AS count
1641 FROM ttrss_feeds, ttrss_counters_cache
1642 WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1643 AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
1644 AND ttrss_counters_cache.feed_id = id";
1645
1646 $result = db_query($query);
1647
1648 while ($line = db_fetch_assoc($result)) {
1649
1650 $id = $line["id"];
1651 $count = $line["count"];
1652 $last_error = htmlspecialchars($line["last_error"]);
1653
1654 $last_updated = make_local_datetime($line['last_updated'], false);
1655
1656 $has_img = feed_has_icon($id);
1657
1658 if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1659 $last_updated = '';
1660
1661 $cv = array("id" => $id,
1662 "updated" => $last_updated,
1663 "counter" => (int) $count,
1664 "has_img" => (int) $has_img);
1665
1666 if ($last_error)
1667 $cv["error"] = $last_error;
1668
1669 // if (get_pref('EXTENDED_FEEDLIST'))
1670 // $cv["xmsg"] = getFeedArticles($id)." ".__("total");
1671
1672 if ($active_feed && $id == $active_feed)
1673 $cv["title"] = truncate_string($line["title"], 30);
1674
1675 array_push($ret_arr, $cv);
1676
1677 }
1678
1679 return $ret_arr;
1680 }
1681
1682 function get_pgsql_version() {
1683 $result = db_query("SELECT version() AS version");
1684 $version = explode(" ", db_fetch_result($result, 0, "version"));
1685 return $version[1];
1686 }
1687
1688 /**
1689 * @return array (code => Status code, message => error message if available)
1690 *
1691 * 0 - OK, Feed already exists
1692 * 1 - OK, Feed added
1693 * 2 - Invalid URL
1694 * 3 - URL content is HTML, no feeds available
1695 * 4 - URL content is HTML which contains multiple feeds.
1696 * Here you should call extractfeedurls in rpc-backend
1697 * to get all possible feeds.
1698 * 5 - Couldn't download the URL content.
1699 * 6 - Content is an invalid XML.
1700 */
1701 function subscribe_to_feed($url, $cat_id = 0,
1702 $auth_login = '', $auth_pass = '') {
1703
1704 global $fetch_last_error;
1705
1706 require_once "include/rssfuncs.php";
1707
1708 $url = fix_url($url);
1709
1710 if (!$url || !validate_feed_url($url)) return array("code" => 2);
1711
1712 $contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
1713
1714 if (!$contents) {
1715 return array("code" => 5, "message" => $fetch_last_error);
1716 }
1717
1718 foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SUBSCRIBE_FEED) as $plugin) {
1719 $contents = $plugin->hook_subscribe_feed($contents, $url, $auth_login, $auth_pass);
1720 }
1721
1722 if (is_html($contents)) {
1723 $feedUrls = get_feeds_from_html($url, $contents);
1724
1725 if (count($feedUrls) == 0) {
1726 return array("code" => 3);
1727 } else if (count($feedUrls) > 1) {
1728 return array("code" => 4, "feeds" => $feedUrls);
1729 }
1730 //use feed url as new URL
1731 $url = key($feedUrls);
1732 }
1733
1734 if ($cat_id == "0" || !$cat_id) {
1735 $cat_qpart = "NULL";
1736 } else {
1737 $cat_qpart = "'$cat_id'";
1738 }
1739
1740 $result = db_query(
1741 "SELECT id FROM ttrss_feeds
1742 WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1743
1744 if (strlen(FEED_CRYPT_KEY) > 0) {
1745 require_once "crypt.php";
1746 $auth_pass = substr(encrypt_string($auth_pass), 0, 250);
1747 $auth_pass_encrypted = 'true';
1748 } else {
1749 $auth_pass_encrypted = 'false';
1750 }
1751
1752 $auth_pass = db_escape_string($auth_pass);
1753
1754 if (db_num_rows($result) == 0) {
1755 $result = db_query(
1756 "INSERT INTO ttrss_feeds
1757 (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method,auth_pass_encrypted)
1758 VALUES ('".$_SESSION["uid"]."', '$url',
1759 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0, $auth_pass_encrypted)");
1760
1761 $result = db_query(
1762 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1763 AND owner_uid = " . $_SESSION["uid"]);
1764
1765 $feed_id = db_fetch_result($result, 0, "id");
1766
1767 if ($feed_id) {
1768 set_basic_feed_info($feed_id);
1769 }
1770
1771 return array("code" => 1);
1772 } else {
1773 return array("code" => 0);
1774 }
1775 }
1776
1777 function print_feed_select($id, $default_id = "",
1778 $attributes = "", $include_all_feeds = true,
1779 $root_id = false, $nest_level = 0) {
1780
1781 if (!$root_id) {
1782 print "<select id=\"$id\" name=\"$id\" $attributes>";
1783 if ($include_all_feeds) {
1784 $is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
1785 print "<option $is_selected value=\"0\">".__('All feeds')."</option>";
1786 }
1787 }
1788
1789 if (get_pref('ENABLE_FEED_CATS')) {
1790
1791 if ($root_id)
1792 $parent_qpart = "parent_cat = '$root_id'";
1793 else
1794 $parent_qpart = "parent_cat IS NULL";
1795
1796 $result = db_query("SELECT id,title,
1797 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1798 c2.parent_cat = ttrss_feed_categories.id) AS num_children
1799 FROM ttrss_feed_categories
1800 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1801
1802 while ($line = db_fetch_assoc($result)) {
1803
1804 for ($i = 0; $i < $nest_level; $i++)
1805 $line["title"] = " - " . $line["title"];
1806
1807 $is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
1808
1809 printf("<option $is_selected value='CAT:%d'>%s</option>",
1810 $line["id"], htmlspecialchars($line["title"]));
1811
1812 if ($line["num_children"] > 0)
1813 print_feed_select($id, $default_id, $attributes,
1814 $include_all_feeds, $line["id"], $nest_level+1);
1815
1816 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1817 WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1818
1819 while ($fline = db_fetch_assoc($feed_result)) {
1820 $is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
1821
1822 $fline["title"] = " + " . $fline["title"];
1823
1824 for ($i = 0; $i < $nest_level; $i++)
1825 $fline["title"] = " - " . $fline["title"];
1826
1827 printf("<option $is_selected value='%d'>%s</option>",
1828 $fline["id"], htmlspecialchars($fline["title"]));
1829 }
1830 }
1831
1832 if (!$root_id) {
1833 $default_is_cat = ($default_id == "CAT:0");
1834 $is_selected = $default_is_cat ? "selected=\"1\"" : "";
1835
1836 printf("<option $is_selected value='CAT:0'>%s</option>",
1837 __("Uncategorized"));
1838
1839 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1840 WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1841
1842 while ($fline = db_fetch_assoc($feed_result)) {
1843 $is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
1844
1845 $fline["title"] = " + " . $fline["title"];
1846
1847 for ($i = 0; $i < $nest_level; $i++)
1848 $fline["title"] = " - " . $fline["title"];
1849
1850 printf("<option $is_selected value='%d'>%s</option>",
1851 $fline["id"], htmlspecialchars($fline["title"]));
1852 }
1853 }
1854
1855 } else {
1856 $result = db_query("SELECT id,title FROM ttrss_feeds
1857 WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1858
1859 while ($line = db_fetch_assoc($result)) {
1860
1861 $is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
1862
1863 printf("<option $is_selected value='%d'>%s</option>",
1864 $line["id"], htmlspecialchars($line["title"]));
1865 }
1866 }
1867
1868 if (!$root_id) {
1869 print "</select>";
1870 }
1871 }
1872
1873 function print_feed_cat_select($id, $default_id,
1874 $attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
1875
1876 if (!$root_id) {
1877 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1878 }
1879
1880 if ($root_id)
1881 $parent_qpart = "parent_cat = '$root_id'";
1882 else
1883 $parent_qpart = "parent_cat IS NULL";
1884
1885 $result = db_query("SELECT id,title,
1886 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1887 c2.parent_cat = ttrss_feed_categories.id) AS num_children
1888 FROM ttrss_feed_categories
1889 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1890
1891 while ($line = db_fetch_assoc($result)) {
1892 if ($line["id"] == $default_id) {
1893 $is_selected = "selected=\"1\"";
1894 } else {
1895 $is_selected = "";
1896 }
1897
1898 for ($i = 0; $i < $nest_level; $i++)
1899 $line["title"] = " - " . $line["title"];
1900
1901 if ($line["title"])
1902 printf("<option $is_selected value='%d'>%s</option>",
1903 $line["id"], htmlspecialchars($line["title"]));
1904
1905 if ($line["num_children"] > 0)
1906 print_feed_cat_select($id, $default_id, $attributes,
1907 $include_all_cats, $line["id"], $nest_level+1);
1908 }
1909
1910 if (!$root_id) {
1911 if ($include_all_cats) {
1912 if (db_num_rows($result) > 0) {
1913 print "<option disabled=\"1\">--------</option>";
1914 }
1915
1916 if ($default_id == 0) {
1917 $is_selected = "selected=\"1\"";
1918 } else {
1919 $is_selected = "";
1920 }
1921
1922 print "<option $is_selected value=\"0\">".__('Uncategorized')."</option>";
1923 }
1924 print "</select>";
1925 }
1926 }
1927
1928 function checkbox_to_sql_bool($val) {
1929 return ($val == "on") ? "true" : "false";
1930 }
1931
1932 function getFeedCatTitle($id) {
1933 if ($id == -1) {
1934 return __("Special");
1935 } else if ($id < LABEL_BASE_INDEX) {
1936 return __("Labels");
1937 } else if ($id > 0) {
1938 $result = db_query("SELECT ttrss_feed_categories.title
1939 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
1940 cat_id = ttrss_feed_categories.id");
1941 if (db_num_rows($result) == 1) {
1942 return db_fetch_result($result, 0, "title");
1943 } else {
1944 return __("Uncategorized");
1945 }
1946 } else {
1947 return "getFeedCatTitle($id) failed";
1948 }
1949
1950 }
1951
1952 function getFeedIcon($id) {
1953 switch ($id) {
1954 case 0:
1955 return "images/archive.png";
1956 break;
1957 case -1:
1958 return "images/star.png";
1959 break;
1960 case -2:
1961 return "images/feed.png";
1962 break;
1963 case -3:
1964 return "images/fresh.png";
1965 break;
1966 case -4:
1967 return "images/folder.png";
1968 break;
1969 case -6:
1970 return "images/time.png";
1971 break;
1972 default:
1973 if ($id < LABEL_BASE_INDEX) {
1974 return "images/label.png";
1975 } else {
1976 if (file_exists(ICONS_DIR . "/$id.ico"))
1977 return ICONS_URL . "/$id.ico";
1978 }
1979 break;
1980 }
1981
1982 return false;
1983 }
1984
1985 function getFeedTitle($id, $cat = false) {
1986 if ($cat) {
1987 return getCategoryTitle($id);
1988 } else if ($id == -1) {
1989 return __("Starred articles");
1990 } else if ($id == -2) {
1991 return __("Published articles");
1992 } else if ($id == -3) {
1993 return __("Fresh articles");
1994 } else if ($id == -4) {
1995 return __("All articles");
1996 } else if ($id === 0 || $id === "0") {
1997 return __("Archived articles");
1998 } else if ($id == -6) {
1999 return __("Recently read");
2000 } else if ($id < LABEL_BASE_INDEX) {
2001 $label_id = feed_to_label_id($id);
2002 $result = db_query("SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
2003 if (db_num_rows($result) == 1) {
2004 return db_fetch_result($result, 0, "caption");
2005 } else {
2006 return "Unknown label ($label_id)";
2007 }
2008
2009 } else if (is_numeric($id) && $id > 0) {
2010 $result = db_query("SELECT title FROM ttrss_feeds WHERE id = '$id'");
2011 if (db_num_rows($result) == 1) {
2012 return db_fetch_result($result, 0, "title");
2013 } else {
2014 return "Unknown feed ($id)";
2015 }
2016 } else {
2017 return $id;
2018 }
2019 }
2020
2021 function uniqid_short() {
2022 return uniqid(base_convert(rand(), 10, 36));
2023 }
2024
2025 // TODO: less dumb splitting
2026 require_once "functions2.php";
2027
2028 ?>
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/