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fetch_file_contents: use http/1.1 when not using curl
[tt-rss.git] / include / functions.php
1 <?php
2 define('EXPECTED_CONFIG_VERSION', 26);
3 define('SCHEMA_VERSION', 129);
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', $owner_uid, false);
329 }
330
331 } else {
332 return -1;
333 }
334 }
335
336 function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false, $timeout = false, $timestamp = 0, $useragent = false) {
337
338 global $fetch_last_error;
339 global $fetch_last_error_code;
340 global $fetch_last_error_content;
341 global $fetch_last_content_type;
342 global $fetch_curl_used;
343
344 $url = ltrim($url, ' ');
345 $url = str_replace(' ', '%20', $url);
346
347 if (strpos($url, "//") === 0)
348 $url = 'http:' . $url;
349
350 if (!defined('NO_CURL') && function_exists('curl_init')) {
351
352 $fetch_curl_used = true;
353
354 if (ini_get("safe_mode") || ini_get("open_basedir") || defined("FORCE_GETURL")) {
355 $new_url = geturl($url);
356 if (!$new_url) {
357 // geturl has already populated $fetch_last_error
358 return false;
359 }
360 $ch = curl_init($new_url);
361 } else {
362 $ch = curl_init($url);
363 }
364
365 if ($timestamp && !$post_query) {
366 curl_setopt($ch, CURLOPT_HTTPHEADER,
367 array("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $timestamp)));
368 }
369
370 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
371 curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
372 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("safe_mode") && !ini_get("open_basedir"));
373 curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
374 curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
375 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
376 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
377 curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
378 curl_setopt($ch, CURLOPT_USERAGENT, $useragent ? $useragent :
379 SELF_USER_AGENT);
380 curl_setopt($ch, CURLOPT_ENCODING, "");
381 //curl_setopt($ch, CURLOPT_REFERER, $url);
382
383 if (!ini_get("safe_mode") && !ini_get("open_basedir")) {
384 curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null");
385 }
386
387 if (defined('_CURL_HTTP_PROXY')) {
388 curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);
389 }
390
391 if ($post_query) {
392 curl_setopt($ch, CURLOPT_POST, true);
393 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
394 }
395
396 if ($login && $pass)
397 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
398
399 $contents = @curl_exec($ch);
400
401 if (curl_errno($ch) === 23 || curl_errno($ch) === 61) {
402 curl_setopt($ch, CURLOPT_ENCODING, 'none');
403 $contents = @curl_exec($ch);
404 }
405
406 if ($contents === false) {
407 $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
408 curl_close($ch);
409 return false;
410 }
411
412 $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
413 $fetch_last_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
414
415 $fetch_last_error_code = $http_code;
416
417 if ($http_code != 200 || $type && strpos($fetch_last_content_type, "$type") === false) {
418 if (curl_errno($ch) != 0) {
419 $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
420 } else {
421 $fetch_last_error = "HTTP Code: $http_code";
422 }
423 $fetch_last_error_content = $contents;
424 curl_close($ch);
425 return false;
426 }
427
428 curl_close($ch);
429
430 return $contents;
431 } else {
432
433 $fetch_curl_used = false;
434
435 if ($login && $pass){
436 $url_parts = array();
437
438 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
439
440 $pass = urlencode($pass);
441
442 if ($url_parts[1] && $url_parts[2]) {
443 $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
444 }
445 }
446
447 if (!$post_query && $timestamp) {
448 $context = stream_context_create(array(
449 'http' => array(
450 'method' => 'GET',
451 'protocol_version'=> 1.1,
452 'header' => "If-Modified-Since: ".gmdate("D, d M Y H:i:s \\G\\M\\T\r\n", $timestamp)
453 )));
454 } else {
455 $context = stream_context_create(array(
456 'http' => array(
457 'method' => 'GET',
458 'protocol_version'=> 1.1
459 )));
460 }
461
462 $old_error = error_get_last();
463
464 $data = @file_get_contents($url, false, $context);
465
466 $fetch_last_content_type = false; // reset if no type was sent from server
467 if (isset($http_response_header) && is_array($http_response_header)) {
468 foreach ($http_response_header as $h) {
469 if (substr(strtolower($h), 0, 13) == 'content-type:') {
470 $fetch_last_content_type = substr($h, 14);
471 // don't abort here b/c there might be more than one
472 // e.g. if we were being redirected -- last one is the right one
473 }
474
475 if (substr(strtolower($h), 0, 7) == 'http/1.') {
476 $fetch_last_error_code = (int) substr($h, 9, 3);
477 }
478 }
479 }
480
481 if (!$data) {
482 $error = error_get_last();
483
484 if ($error['message'] != $old_error['message']) {
485 $fetch_last_error = $error["message"];
486 } else {
487 $fetch_last_error = "HTTP Code: $fetch_last_error_code";
488 }
489 }
490 return $data;
491 }
492
493 }
494
495 /**
496 * Try to determine the favicon URL for a feed.
497 * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
498 * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
499 *
500 * @param string $url A feed or page URL
501 * @access public
502 * @return mixed The favicon URL, or false if none was found.
503 */
504 function get_favicon_url($url) {
505
506 $favicon_url = false;
507
508 if ($html = @fetch_file_contents($url)) {
509
510 libxml_use_internal_errors(true);
511
512 $doc = new DOMDocument();
513 $doc->loadHTML($html);
514 $xpath = new DOMXPath($doc);
515
516 $base = $xpath->query('/html/head/base');
517 foreach ($base as $b) {
518 $url = $b->getAttribute("href");
519 break;
520 }
521
522 $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
523 if (count($entries) > 0) {
524 foreach ($entries as $entry) {
525 $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
526 break;
527 }
528 }
529 }
530
531 if (!$favicon_url)
532 $favicon_url = rewrite_relative_url($url, "/favicon.ico");
533
534 return $favicon_url;
535 } // function get_favicon_url
536
537 function check_feed_favicon($site_url, $feed) {
538 # print "FAVICON [$site_url]: $favicon_url\n";
539
540 $icon_file = ICONS_DIR . "/$feed.ico";
541
542 if (!file_exists($icon_file)) {
543 $favicon_url = get_favicon_url($site_url);
544
545 if ($favicon_url) {
546 // Limiting to "image" type misses those served with text/plain
547 $contents = fetch_file_contents($favicon_url); // , "image");
548
549 if ($contents) {
550 // Crude image type matching.
551 // Patterns gleaned from the file(1) source code.
552 if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
553 // 0 string \000\000\001\000 MS Windows icon resource
554 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
555 }
556 elseif (preg_match('/^GIF8/', $contents)) {
557 // 0 string GIF8 GIF image data
558 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
559 }
560 elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
561 // 0 string \x89PNG\x0d\x0a\x1a\x0a PNG image data
562 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
563 }
564 elseif (preg_match('/^\xff\xd8/', $contents)) {
565 // 0 beshort 0xffd8 JPEG image data
566 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
567 }
568 else {
569 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
570 $contents = "";
571 }
572 }
573
574 if ($contents) {
575 $fp = @fopen($icon_file, "w");
576
577 if ($fp) {
578 fwrite($fp, $contents);
579 fclose($fp);
580 chmod($icon_file, 0644);
581 }
582 }
583 }
584 return $icon_file;
585 }
586 }
587
588 function print_select($id, $default, $values, $attributes = "", $name = "") {
589 if (!$name) $name = $id;
590
591 print "<select name=\"$name\" id=\"$id\" $attributes>";
592 foreach ($values as $v) {
593 if ($v == $default)
594 $sel = "selected=\"1\"";
595 else
596 $sel = "";
597
598 $v = trim($v);
599
600 print "<option value=\"$v\" $sel>$v</option>";
601 }
602 print "</select>";
603 }
604
605 function print_select_hash($id, $default, $values, $attributes = "", $name = "") {
606 if (!$name) $name = $id;
607
608 print "<select name=\"$name\" id='$id' $attributes>";
609 foreach (array_keys($values) as $v) {
610 if ($v == $default)
611 $sel = 'selected="selected"';
612 else
613 $sel = "";
614
615 $v = trim($v);
616
617 print "<option $sel value=\"$v\">".$values[$v]."</option>";
618 }
619
620 print "</select>";
621 }
622
623 function print_radio($id, $default, $true_is, $values, $attributes = "") {
624 foreach ($values as $v) {
625
626 if ($v == $default)
627 $sel = "checked";
628 else
629 $sel = "";
630
631 if ($v == $true_is) {
632 $sel .= " value=\"1\"";
633 } else {
634 $sel .= " value=\"0\"";
635 }
636
637 print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
638 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
639
640 }
641 }
642
643 function initialize_user_prefs($uid, $profile = false) {
644
645 $uid = db_escape_string($uid);
646
647 if (!$profile) {
648 $profile = "NULL";
649 $profile_qpart = "AND profile IS NULL";
650 } else {
651 $profile_qpart = "AND profile = '$profile'";
652 }
653
654 if (get_schema_version() < 63) $profile_qpart = "";
655
656 db_query("BEGIN");
657
658 $result = db_query("SELECT pref_name,def_value FROM ttrss_prefs");
659
660 $u_result = db_query("SELECT pref_name
661 FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
662
663 $active_prefs = array();
664
665 while ($line = db_fetch_assoc($u_result)) {
666 array_push($active_prefs, $line["pref_name"]);
667 }
668
669 while ($line = db_fetch_assoc($result)) {
670 if (array_search($line["pref_name"], $active_prefs) === FALSE) {
671 // print "adding " . $line["pref_name"] . "<br>";
672
673 $line["def_value"] = db_escape_string($line["def_value"]);
674 $line["pref_name"] = db_escape_string($line["pref_name"]);
675
676 if (get_schema_version() < 63) {
677 db_query("INSERT INTO ttrss_user_prefs
678 (owner_uid,pref_name,value) VALUES
679 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
680
681 } else {
682 db_query("INSERT INTO ttrss_user_prefs
683 (owner_uid,pref_name,value, profile) VALUES
684 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
685 }
686
687 }
688 }
689
690 db_query("COMMIT");
691
692 }
693
694 function get_ssl_certificate_id() {
695 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
696 return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
697 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
698 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
699 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
700 }
701 if ($_SERVER["SSL_CLIENT_M_SERIAL"]) {
702 return sha1($_SERVER["SSL_CLIENT_M_SERIAL"] .
703 $_SERVER["SSL_CLIENT_V_START"] .
704 $_SERVER["SSL_CLIENT_V_END"] .
705 $_SERVER["SSL_CLIENT_S_DN"]);
706 }
707 return "";
708 }
709
710 function authenticate_user($login, $password, $check_only = false) {
711
712 if (!SINGLE_USER_MODE) {
713 $user_id = false;
714
715 foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) {
716
717 $user_id = (int) $plugin->authenticate($login, $password);
718
719 if ($user_id) {
720 $_SESSION["auth_module"] = strtolower(get_class($plugin));
721 break;
722 }
723 }
724
725 if ($user_id && !$check_only) {
726 @session_start();
727
728 $_SESSION["uid"] = $user_id;
729 $_SESSION["version"] = VERSION_STATIC;
730
731 $result = db_query("SELECT login,access_level,pwd_hash FROM ttrss_users
732 WHERE id = '$user_id'");
733
734 $_SESSION["name"] = db_fetch_result($result, 0, "login");
735 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
736 $_SESSION["csrf_token"] = uniqid_short();
737
738 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
739 $_SESSION["uid"]);
740
741 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
742 $_SESSION["user_agent"] = sha1($_SERVER['HTTP_USER_AGENT']);
743 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
744
745 $_SESSION["last_version_check"] = time();
746
747 initialize_user_prefs($_SESSION["uid"]);
748
749 return true;
750 }
751
752 return false;
753
754 } else {
755
756 $_SESSION["uid"] = 1;
757 $_SESSION["name"] = "admin";
758 $_SESSION["access_level"] = 10;
759
760 $_SESSION["hide_hello"] = true;
761 $_SESSION["hide_logout"] = true;
762
763 $_SESSION["auth_module"] = false;
764
765 if (!$_SESSION["csrf_token"]) {
766 $_SESSION["csrf_token"] = uniqid_short();
767 }
768
769 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
770
771 initialize_user_prefs($_SESSION["uid"]);
772
773 return true;
774 }
775 }
776
777 function make_password($length = 8) {
778
779 $password = "";
780 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
781
782 $i = 0;
783
784 while ($i < $length) {
785 $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
786
787 if (!strstr($password, $char)) {
788 $password .= $char;
789 $i++;
790 }
791 }
792 return $password;
793 }
794
795 // this is called after user is created to initialize default feeds, labels
796 // or whatever else
797
798 // user preferences are checked on every login, not here
799
800 function initialize_user($uid) {
801
802 db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
803 values ('$uid', 'Tiny Tiny RSS: Forum',
804 'http://tt-rss.org/forum/rss.php')");
805 }
806
807 function logout_user() {
808 session_destroy();
809 if (isset($_COOKIE[session_name()])) {
810 setcookie(session_name(), '', time()-42000, '/');
811 }
812 }
813
814 function validate_csrf($csrf_token) {
815 return $csrf_token == $_SESSION['csrf_token'];
816 }
817
818 function load_user_plugins($owner_uid) {
819 if ($owner_uid && SCHEMA_VERSION >= 100) {
820 $plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
821
822 PluginHost::getInstance()->load($plugins, PluginHost::KIND_USER, $owner_uid);
823
824 if (get_schema_version() > 100) {
825 PluginHost::getInstance()->load_data();
826 }
827 }
828 }
829
830 function login_sequence() {
831 if (SINGLE_USER_MODE) {
832 @session_start();
833 authenticate_user("admin", null);
834 startup_gettext();
835 load_user_plugins($_SESSION["uid"]);
836 } else {
837 if (!validate_session()) $_SESSION["uid"] = false;
838
839 if (!$_SESSION["uid"]) {
840
841 if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) {
842 $_SESSION["ref_schema_version"] = get_schema_version(true);
843 } else {
844 authenticate_user(null, null, true);
845 }
846
847 if (!$_SESSION["uid"]) {
848 @session_destroy();
849 setcookie(session_name(), '', time()-42000, '/');
850
851 render_login_form();
852 exit;
853 }
854
855 } else {
856 /* bump login timestamp */
857 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
858 $_SESSION["uid"]);
859 $_SESSION["last_login_update"] = time();
860 }
861
862 if ($_SESSION["uid"]) {
863 startup_gettext();
864 load_user_plugins($_SESSION["uid"]);
865
866 /* cleanup ccache */
867
868 db_query("DELETE FROM ttrss_counters_cache WHERE owner_uid = ".
869 $_SESSION["uid"] . " AND
870 (SELECT COUNT(id) FROM ttrss_feeds WHERE
871 ttrss_feeds.id = feed_id) = 0");
872
873 db_query("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ".
874 $_SESSION["uid"] . " AND
875 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
876 ttrss_feed_categories.id = feed_id) = 0");
877
878 }
879
880 }
881 }
882
883 function truncate_string($str, $max_len, $suffix = '&hellip;') {
884 if (mb_strlen($str, "utf-8") > $max_len) {
885 return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
886 } else {
887 return $str;
888 }
889 }
890
891 function convert_timestamp($timestamp, $source_tz, $dest_tz) {
892
893 try {
894 $source_tz = new DateTimeZone($source_tz);
895 } catch (Exception $e) {
896 $source_tz = new DateTimeZone('UTC');
897 }
898
899 try {
900 $dest_tz = new DateTimeZone($dest_tz);
901 } catch (Exception $e) {
902 $dest_tz = new DateTimeZone('UTC');
903 }
904
905 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
906 return $dt->format('U') + $dest_tz->getOffset($dt);
907 }
908
909 function make_local_datetime($timestamp, $long, $owner_uid = false,
910 $no_smart_dt = false, $eta_min = false) {
911
912 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
913 if (!$timestamp) $timestamp = '1970-01-01 0:00';
914
915 global $utc_tz;
916 global $user_tz;
917
918 if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
919
920 $timestamp = substr($timestamp, 0, 19);
921
922 # We store date in UTC internally
923 $dt = new DateTime($timestamp, $utc_tz);
924
925 $user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
926
927 if ($user_tz_string != 'Automatic') {
928
929 try {
930 if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
931 } catch (Exception $e) {
932 $user_tz = $utc_tz;
933 }
934
935 $tz_offset = $user_tz->getOffset($dt);
936 } else {
937 $tz_offset = (int) -$_SESSION["clientTzOffset"];
938 }
939
940 $user_timestamp = $dt->format('U') + $tz_offset;
941
942 if (!$no_smart_dt) {
943 return smart_date_time($user_timestamp,
944 $tz_offset, $owner_uid, $eta_min);
945 } else {
946 if ($long)
947 $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
948 else
949 $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
950
951 return date($format, $user_timestamp);
952 }
953 }
954
955 function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false, $eta_min = false) {
956 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
957
958 if ($eta_min && time() + $tz_offset - $timestamp < 3600) {
959 return T_sprintf("%d min", date("i", time() + $tz_offset - $timestamp));
960 } else if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
961 return date("G:i", $timestamp);
962 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
963 $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
964 return date($format, $timestamp);
965 } else {
966 $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
967 return date($format, $timestamp);
968 }
969 }
970
971 function sql_bool_to_bool($s) {
972 if ($s == "t" || $s == "1" || strtolower($s) == "true") {
973 return true;
974 } else {
975 return false;
976 }
977 }
978
979 function bool_to_sql_bool($s) {
980 if ($s) {
981 return "true";
982 } else {
983 return "false";
984 }
985 }
986
987 // Session caching removed due to causing wrong redirects to upgrade
988 // script when get_schema_version() is called on an obsolete session
989 // created on a previous schema version.
990 function get_schema_version($nocache = false) {
991 global $schema_version;
992
993 if (!$schema_version && !$nocache) {
994 $result = db_query("SELECT schema_version FROM ttrss_version");
995 $version = db_fetch_result($result, 0, "schema_version");
996 $schema_version = $version;
997 return $version;
998 } else {
999 return $schema_version;
1000 }
1001 }
1002
1003 function sanity_check() {
1004 require_once 'errors.php';
1005 global $ERRORS;
1006
1007 $error_code = 0;
1008 $schema_version = get_schema_version(true);
1009
1010 if ($schema_version != SCHEMA_VERSION) {
1011 $error_code = 5;
1012 }
1013
1014 if (DB_TYPE == "mysql") {
1015 $result = db_query("SELECT true", false);
1016 if (db_num_rows($result) != 1) {
1017 $error_code = 10;
1018 }
1019 }
1020
1021 if (db_escape_string("testTEST") != "testTEST") {
1022 $error_code = 12;
1023 }
1024
1025 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1026 }
1027
1028 function file_is_locked($filename) {
1029 if (file_exists(LOCK_DIRECTORY . "/$filename")) {
1030 if (function_exists('flock')) {
1031 $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1032 if ($fp) {
1033 if (flock($fp, LOCK_EX | LOCK_NB)) {
1034 flock($fp, LOCK_UN);
1035 fclose($fp);
1036 return false;
1037 }
1038 fclose($fp);
1039 return true;
1040 } else {
1041 return false;
1042 }
1043 }
1044 return true; // consider the file always locked and skip the test
1045 } else {
1046 return false;
1047 }
1048 }
1049
1050
1051 function make_lockfile($filename) {
1052 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1053
1054 if ($fp && flock($fp, LOCK_EX | LOCK_NB)) {
1055 $stat_h = fstat($fp);
1056 $stat_f = stat(LOCK_DIRECTORY . "/$filename");
1057
1058 if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
1059 if ($stat_h["ino"] != $stat_f["ino"] ||
1060 $stat_h["dev"] != $stat_f["dev"]) {
1061
1062 return false;
1063 }
1064 }
1065
1066 if (function_exists('posix_getpid')) {
1067 fwrite($fp, posix_getpid() . "\n");
1068 }
1069 return $fp;
1070 } else {
1071 return false;
1072 }
1073 }
1074
1075 function make_stampfile($filename) {
1076 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1077
1078 if (flock($fp, LOCK_EX | LOCK_NB)) {
1079 fwrite($fp, time() . "\n");
1080 flock($fp, LOCK_UN);
1081 fclose($fp);
1082 return true;
1083 } else {
1084 return false;
1085 }
1086 }
1087
1088 function sql_random_function() {
1089 if (DB_TYPE == "mysql") {
1090 return "RAND()";
1091 } else {
1092 return "RANDOM()";
1093 }
1094 }
1095
1096 function catchup_feed($feed, $cat_view, $owner_uid = false, $max_id = false, $mode = 'all') {
1097
1098 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1099
1100 //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1101
1102 // Todo: all this interval stuff needs some generic generator function
1103
1104 $date_qpart = "false";
1105
1106 switch ($mode) {
1107 case "1day":
1108 if (DB_TYPE == "pgsql") {
1109 $date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
1110 } else {
1111 $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
1112 }
1113 break;
1114 case "1week":
1115 if (DB_TYPE == "pgsql") {
1116 $date_qpart = "date_entered < NOW() - INTERVAL '1 week' ";
1117 } else {
1118 $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 WEEK) ";
1119 }
1120 break;
1121 case "2week":
1122 if (DB_TYPE == "pgsql") {
1123 $date_qpart = "date_entered < NOW() - INTERVAL '2 week' ";
1124 } else {
1125 $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 2 WEEK) ";
1126 }
1127 break;
1128 default:
1129 $date_qpart = "true";
1130 }
1131
1132 if (is_numeric($feed)) {
1133 if ($cat_view) {
1134
1135 if ($feed >= 0) {
1136
1137 if ($feed > 0) {
1138 $children = getChildCategories($feed, $owner_uid);
1139 array_push($children, $feed);
1140
1141 $children = join(",", $children);
1142
1143 $cat_qpart = "cat_id IN ($children)";
1144 } else {
1145 $cat_qpart = "cat_id IS NULL";
1146 }
1147
1148 db_query("UPDATE ttrss_user_entries
1149 SET unread = false, last_read = NOW() WHERE ref_id IN
1150 (SELECT id FROM
1151 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1152 AND owner_uid = $owner_uid AND unread = true AND feed_id IN
1153 (SELECT id FROM ttrss_feeds WHERE $cat_qpart) AND $date_qpart) as tmp)");
1154
1155 } else if ($feed == -2) {
1156
1157 db_query("UPDATE ttrss_user_entries
1158 SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1159 FROM ttrss_user_labels2, ttrss_entries WHERE article_id = ref_id AND id = ref_id AND $date_qpart) > 0
1160 AND unread = true AND owner_uid = $owner_uid");
1161 }
1162
1163 } else if ($feed > 0) {
1164
1165 db_query("UPDATE ttrss_user_entries
1166 SET unread = false, last_read = NOW() WHERE ref_id IN
1167 (SELECT id FROM
1168 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1169 AND owner_uid = $owner_uid AND unread = true AND feed_id = $feed AND $date_qpart) as tmp)");
1170
1171 } else if ($feed < 0 && $feed > LABEL_BASE_INDEX) { // special, like starred
1172
1173 if ($feed == -1) {
1174 db_query("UPDATE ttrss_user_entries
1175 SET unread = false, last_read = NOW() WHERE ref_id IN
1176 (SELECT id FROM
1177 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1178 AND owner_uid = $owner_uid AND unread = true AND marked = true AND $date_qpart) as tmp)");
1179 }
1180
1181 if ($feed == -2) {
1182 db_query("UPDATE ttrss_user_entries
1183 SET unread = false, last_read = NOW() WHERE ref_id IN
1184 (SELECT id FROM
1185 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1186 AND owner_uid = $owner_uid AND unread = true AND published = true AND $date_qpart) as tmp)");
1187 }
1188
1189 if ($feed == -3) {
1190
1191 $intl = get_pref("FRESH_ARTICLE_MAX_AGE");
1192
1193 if (DB_TYPE == "pgsql") {
1194 $match_part = "date_entered > NOW() - INTERVAL '$intl hour' ";
1195 } else {
1196 $match_part = "date_entered > DATE_SUB(NOW(),
1197 INTERVAL $intl HOUR) ";
1198 }
1199
1200 db_query("UPDATE ttrss_user_entries
1201 SET unread = false, last_read = NOW() WHERE ref_id IN
1202 (SELECT id FROM
1203 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1204 AND owner_uid = $owner_uid AND score >= 0 AND unread = true AND $date_qpart AND $match_part) as tmp)");
1205 }
1206
1207 if ($feed == -4) {
1208 db_query("UPDATE ttrss_user_entries
1209 SET unread = false, last_read = NOW() WHERE ref_id IN
1210 (SELECT id FROM
1211 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1212 AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1213 }
1214
1215 } else if ($feed < LABEL_BASE_INDEX) { // label
1216
1217 $label_id = feed_to_label_id($feed);
1218
1219 db_query("UPDATE ttrss_user_entries
1220 SET unread = false, last_read = NOW() WHERE ref_id IN
1221 (SELECT id FROM
1222 (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_user_labels2 WHERE ref_id = id
1223 AND label_id = '$label_id' AND ref_id = article_id
1224 AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1225
1226 }
1227
1228 ccache_update($feed, $owner_uid, $cat_view);
1229
1230 } else { // tag
1231 db_query("UPDATE ttrss_user_entries
1232 SET unread = false, last_read = NOW() WHERE ref_id IN
1233 (SELECT id FROM
1234 (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_tags WHERE ref_id = ttrss_entries.id
1235 AND post_int_id = int_id AND tag_name = '$feed'
1236 AND ttrss_user_entries.owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1237
1238 }
1239 }
1240
1241 function getAllCounters() {
1242 $data = getGlobalCounters();
1243
1244 $data = array_merge($data, getVirtCounters());
1245 $data = array_merge($data, getLabelCounters());
1246 $data = array_merge($data, getFeedCounters());
1247 $data = array_merge($data, getCategoryCounters());
1248
1249 return $data;
1250 }
1251
1252 function getCategoryTitle($cat_id) {
1253
1254 if ($cat_id == -1) {
1255 return __("Special");
1256 } else if ($cat_id == -2) {
1257 return __("Labels");
1258 } else {
1259
1260 $result = db_query("SELECT title FROM ttrss_feed_categories WHERE
1261 id = '$cat_id'");
1262
1263 if (db_num_rows($result) == 1) {
1264 return db_fetch_result($result, 0, "title");
1265 } else {
1266 return __("Uncategorized");
1267 }
1268 }
1269 }
1270
1271
1272 function getCategoryCounters() {
1273 $ret_arr = array();
1274
1275 /* Labels category */
1276
1277 $cv = array("id" => -2, "kind" => "cat",
1278 "counter" => getCategoryUnread(-2));
1279
1280 array_push($ret_arr, $cv);
1281
1282 $result = db_query("SELECT id AS cat_id, value AS unread,
1283 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2
1284 WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
1285 FROM ttrss_feed_categories, ttrss_cat_counters_cache
1286 WHERE ttrss_cat_counters_cache.feed_id = id AND
1287 ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid AND
1288 ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1289
1290 while ($line = db_fetch_assoc($result)) {
1291 $line["cat_id"] = (int) $line["cat_id"];
1292
1293 if ($line["num_children"] > 0) {
1294 $child_counter = getCategoryChildrenUnread($line["cat_id"], $_SESSION["uid"]);
1295 } else {
1296 $child_counter = 0;
1297 }
1298
1299 $cv = array("id" => $line["cat_id"], "kind" => "cat",
1300 "counter" => $line["unread"] + $child_counter);
1301
1302 array_push($ret_arr, $cv);
1303 }
1304
1305 /* Special case: NULL category doesn't actually exist in the DB */
1306
1307 $cv = array("id" => 0, "kind" => "cat",
1308 "counter" => (int) ccache_find(0, $_SESSION["uid"], true));
1309
1310 array_push($ret_arr, $cv);
1311
1312 return $ret_arr;
1313 }
1314
1315 // only accepts real cats (>= 0)
1316 function getCategoryChildrenUnread($cat, $owner_uid = false) {
1317 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1318
1319 $result = db_query("SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
1320 AND owner_uid = $owner_uid");
1321
1322 $unread = 0;
1323
1324 while ($line = db_fetch_assoc($result)) {
1325 $unread += getCategoryUnread($line["id"], $owner_uid);
1326 $unread += getCategoryChildrenUnread($line["id"], $owner_uid);
1327 }
1328
1329 return $unread;
1330 }
1331
1332 function getCategoryUnread($cat, $owner_uid = false) {
1333
1334 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1335
1336 if ($cat >= 0) {
1337
1338 if ($cat != 0) {
1339 $cat_query = "cat_id = '$cat'";
1340 } else {
1341 $cat_query = "cat_id IS NULL";
1342 }
1343
1344 $result = db_query("SELECT id FROM ttrss_feeds WHERE $cat_query
1345 AND owner_uid = " . $owner_uid);
1346
1347 $cat_feeds = array();
1348 while ($line = db_fetch_assoc($result)) {
1349 array_push($cat_feeds, "feed_id = " . $line["id"]);
1350 }
1351
1352 if (count($cat_feeds) == 0) return 0;
1353
1354 $match_part = implode(" OR ", $cat_feeds);
1355
1356 $result = db_query("SELECT COUNT(int_id) AS unread
1357 FROM ttrss_user_entries
1358 WHERE unread = true AND ($match_part)
1359 AND owner_uid = " . $owner_uid);
1360
1361 $unread = 0;
1362
1363 # this needs to be rewritten
1364 while ($line = db_fetch_assoc($result)) {
1365 $unread += $line["unread"];
1366 }
1367
1368 return $unread;
1369 } else if ($cat == -1) {
1370 return getFeedUnread(-1) + getFeedUnread(-2) + getFeedUnread(-3) + getFeedUnread(0);
1371 } else if ($cat == -2) {
1372
1373 $result = db_query("
1374 SELECT COUNT(unread) AS unread FROM
1375 ttrss_user_entries, ttrss_user_labels2
1376 WHERE article_id = ref_id AND unread = true
1377 AND ttrss_user_entries.owner_uid = '$owner_uid'");
1378
1379 $unread = db_fetch_result($result, 0, "unread");
1380
1381 return $unread;
1382
1383 }
1384 }
1385
1386 function getFeedUnread($feed, $is_cat = false) {
1387 return getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]);
1388 }
1389
1390 function getLabelUnread($label_id, $owner_uid = false) {
1391 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1392
1393 $result = db_query("SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
1394 WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
1395
1396 if (db_num_rows($result) != 0) {
1397 return db_fetch_result($result, 0, "unread");
1398 } else {
1399 return 0;
1400 }
1401 }
1402
1403 function getFeedArticles($feed, $is_cat = false, $unread_only = false,
1404 $owner_uid = false) {
1405
1406 $n_feed = (int) $feed;
1407 $need_entries = false;
1408
1409 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1410
1411 if ($unread_only) {
1412 $unread_qpart = "unread = true";
1413 } else {
1414 $unread_qpart = "true";
1415 }
1416
1417 if ($is_cat) {
1418 return getCategoryUnread($n_feed, $owner_uid);
1419 } else if ($n_feed == -6) {
1420 return 0;
1421 } else if ($feed != "0" && $n_feed == 0) {
1422
1423 $feed = db_escape_string($feed);
1424
1425 $result = db_query("SELECT SUM((SELECT COUNT(int_id)
1426 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1427 AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
1428 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1429 return db_fetch_result($result, 0, "count");
1430
1431 } else if ($n_feed == -1) {
1432 $match_part = "marked = true";
1433 } else if ($n_feed == -2) {
1434 $match_part = "published = true";
1435 } else if ($n_feed == -3) {
1436 $match_part = "unread = true AND score >= 0";
1437
1438 $intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
1439
1440 if (DB_TYPE == "pgsql") {
1441 $match_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
1442 } else {
1443 $match_part .= " AND date_entered > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1444 }
1445
1446 $need_entries = true;
1447
1448 } else if ($n_feed == -4) {
1449 $match_part = "true";
1450 } else if ($n_feed >= 0) {
1451
1452 if ($n_feed != 0) {
1453 $match_part = "feed_id = '$n_feed'";
1454 } else {
1455 $match_part = "feed_id IS NULL";
1456 }
1457
1458 } else if ($feed < LABEL_BASE_INDEX) {
1459
1460 $label_id = feed_to_label_id($feed);
1461
1462 return getLabelUnread($label_id, $owner_uid);
1463
1464 }
1465
1466 if ($match_part) {
1467
1468 if ($need_entries) {
1469 $from_qpart = "ttrss_user_entries,ttrss_entries";
1470 $from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
1471 } else {
1472 $from_qpart = "ttrss_user_entries";
1473 $from_where = "";
1474 }
1475
1476 $query = "SELECT count(int_id) AS unread
1477 FROM $from_qpart WHERE
1478 $unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1479
1480 //echo "[$feed/$query]\n";
1481
1482 $result = db_query($query);
1483
1484 } else {
1485
1486 $result = db_query("SELECT COUNT(post_int_id) AS unread
1487 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1488 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1489 AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
1490 }
1491
1492 $unread = db_fetch_result($result, 0, "unread");
1493
1494 return $unread;
1495 }
1496
1497 function getGlobalUnread($user_id = false) {
1498
1499 if (!$user_id) {
1500 $user_id = $_SESSION["uid"];
1501 }
1502
1503 $result = db_query("SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1504 WHERE owner_uid = '$user_id' AND feed_id > 0");
1505
1506 $c_id = db_fetch_result($result, 0, "c_id");
1507
1508 return $c_id;
1509 }
1510
1511 function getGlobalCounters($global_unread = -1) {
1512 $ret_arr = array();
1513
1514 if ($global_unread == -1) {
1515 $global_unread = getGlobalUnread();
1516 }
1517
1518 $cv = array("id" => "global-unread",
1519 "counter" => (int) $global_unread);
1520
1521 array_push($ret_arr, $cv);
1522
1523 $result = db_query("SELECT COUNT(id) AS fn FROM
1524 ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1525
1526 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1527
1528 $cv = array("id" => "subscribed-feeds",
1529 "counter" => (int) $subscribed_feeds);
1530
1531 array_push($ret_arr, $cv);
1532
1533 return $ret_arr;
1534 }
1535
1536 function getVirtCounters() {
1537
1538 $ret_arr = array();
1539
1540 for ($i = 0; $i >= -4; $i--) {
1541
1542 $count = getFeedUnread($i);
1543
1544 if ($i == 0 || $i == -1 || $i == -2)
1545 $auxctr = getFeedArticles($i, false);
1546 else
1547 $auxctr = 0;
1548
1549 $cv = array("id" => $i,
1550 "counter" => (int) $count,
1551 "auxcounter" => $auxctr);
1552
1553 // if (get_pref('EXTENDED_FEEDLIST'))
1554 // $cv["xmsg"] = getFeedArticles($i)." ".__("total");
1555
1556 array_push($ret_arr, $cv);
1557 }
1558
1559 $feeds = PluginHost::getInstance()->get_feeds(-1);
1560
1561 if (is_array($feeds)) {
1562 foreach ($feeds as $feed) {
1563 $cv = array("id" => PluginHost::pfeed_to_feed_id($feed['id']),
1564 "counter" => $feed['sender']->get_unread($feed['id']));
1565
1566 if (method_exists($feed['sender'], 'get_total'))
1567 $cv["auxcounter"] = $feed['sender']->get_total($feed['id']);
1568
1569 array_push($ret_arr, $cv);
1570 }
1571 }
1572
1573 return $ret_arr;
1574 }
1575
1576 function getLabelCounters($descriptions = false) {
1577
1578 $ret_arr = array();
1579
1580 $owner_uid = $_SESSION["uid"];
1581
1582 $result = db_query("SELECT id,caption,SUM(CASE WHEN u1.unread = true THEN 1 ELSE 0 END) AS unread, COUNT(u1.unread) AS total
1583 FROM ttrss_labels2 LEFT JOIN ttrss_user_labels2 ON
1584 (ttrss_labels2.id = label_id)
1585 LEFT JOIN ttrss_user_entries AS u1 ON u1.ref_id = article_id
1586 WHERE ttrss_labels2.owner_uid = $owner_uid GROUP BY ttrss_labels2.id,
1587 ttrss_labels2.caption");
1588
1589 while ($line = db_fetch_assoc($result)) {
1590
1591 $id = label_to_feed_id($line["id"]);
1592
1593 $cv = array("id" => $id,
1594 "counter" => (int) $line["unread"],
1595 "auxcounter" => (int) $line["total"]);
1596
1597 if ($descriptions)
1598 $cv["description"] = $line["caption"];
1599
1600 array_push($ret_arr, $cv);
1601 }
1602
1603 return $ret_arr;
1604 }
1605
1606 function getFeedCounters($active_feed = false) {
1607
1608 $ret_arr = array();
1609
1610 $query = "SELECT ttrss_feeds.id,
1611 ttrss_feeds.title,
1612 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1613 last_error, value AS count
1614 FROM ttrss_feeds, ttrss_counters_cache
1615 WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1616 AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
1617 AND ttrss_counters_cache.feed_id = id";
1618
1619 $result = db_query($query);
1620
1621 while ($line = db_fetch_assoc($result)) {
1622
1623 $id = $line["id"];
1624 $count = $line["count"];
1625 $last_error = htmlspecialchars($line["last_error"]);
1626
1627 $last_updated = make_local_datetime($line['last_updated'], false);
1628
1629 $has_img = feed_has_icon($id);
1630
1631 if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1632 $last_updated = '';
1633
1634 $cv = array("id" => $id,
1635 "updated" => $last_updated,
1636 "counter" => (int) $count,
1637 "has_img" => (int) $has_img);
1638
1639 if ($last_error)
1640 $cv["error"] = $last_error;
1641
1642 // if (get_pref('EXTENDED_FEEDLIST'))
1643 // $cv["xmsg"] = getFeedArticles($id)." ".__("total");
1644
1645 if ($active_feed && $id == $active_feed)
1646 $cv["title"] = truncate_string($line["title"], 30);
1647
1648 array_push($ret_arr, $cv);
1649
1650 }
1651
1652 return $ret_arr;
1653 }
1654
1655 function get_pgsql_version() {
1656 $result = db_query("SELECT version() AS version");
1657 $version = explode(" ", db_fetch_result($result, 0, "version"));
1658 return $version[1];
1659 }
1660
1661 /**
1662 * @return array (code => Status code, message => error message if available)
1663 *
1664 * 0 - OK, Feed already exists
1665 * 1 - OK, Feed added
1666 * 2 - Invalid URL
1667 * 3 - URL content is HTML, no feeds available
1668 * 4 - URL content is HTML which contains multiple feeds.
1669 * Here you should call extractfeedurls in rpc-backend
1670 * to get all possible feeds.
1671 * 5 - Couldn't download the URL content.
1672 * 6 - Content is an invalid XML.
1673 */
1674 function subscribe_to_feed($url, $cat_id = 0,
1675 $auth_login = '', $auth_pass = '') {
1676
1677 global $fetch_last_error;
1678
1679 require_once "include/rssfuncs.php";
1680
1681 $url = fix_url($url);
1682
1683 if (!$url || !validate_feed_url($url)) return array("code" => 2);
1684
1685 $contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
1686
1687 if (!$contents) {
1688 return array("code" => 5, "message" => $fetch_last_error);
1689 }
1690
1691 foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SUBSCRIBE_FEED) as $plugin) {
1692 $contents = $plugin->hook_subscribe_feed($contents, $url, $auth_login, $auth_pass);
1693 }
1694
1695 if (is_html($contents)) {
1696 $feedUrls = get_feeds_from_html($url, $contents);
1697
1698 if (count($feedUrls) == 0) {
1699 return array("code" => 3);
1700 } else if (count($feedUrls) > 1) {
1701 return array("code" => 4, "feeds" => $feedUrls);
1702 }
1703 //use feed url as new URL
1704 $url = key($feedUrls);
1705 }
1706
1707 if ($cat_id == "0" || !$cat_id) {
1708 $cat_qpart = "NULL";
1709 } else {
1710 $cat_qpart = "'$cat_id'";
1711 }
1712
1713 $result = db_query(
1714 "SELECT id FROM ttrss_feeds
1715 WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1716
1717 if (strlen(FEED_CRYPT_KEY) > 0) {
1718 require_once "crypt.php";
1719 $auth_pass = substr(encrypt_string($auth_pass), 0, 250);
1720 $auth_pass_encrypted = 'true';
1721 } else {
1722 $auth_pass_encrypted = 'false';
1723 }
1724
1725 $auth_pass = db_escape_string($auth_pass);
1726
1727 if (db_num_rows($result) == 0) {
1728 $result = db_query(
1729 "INSERT INTO ttrss_feeds
1730 (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method,auth_pass_encrypted)
1731 VALUES ('".$_SESSION["uid"]."', '$url',
1732 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0, $auth_pass_encrypted)");
1733
1734 $result = db_query(
1735 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1736 AND owner_uid = " . $_SESSION["uid"]);
1737
1738 $feed_id = db_fetch_result($result, 0, "id");
1739
1740 if ($feed_id) {
1741 set_basic_feed_info($feed_id);
1742 }
1743
1744 return array("code" => 1);
1745 } else {
1746 return array("code" => 0);
1747 }
1748 }
1749
1750 function print_feed_select($id, $default_id = "",
1751 $attributes = "", $include_all_feeds = true,
1752 $root_id = false, $nest_level = 0) {
1753
1754 if (!$root_id) {
1755 print "<select id=\"$id\" name=\"$id\" $attributes>";
1756 if ($include_all_feeds) {
1757 $is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
1758 print "<option $is_selected value=\"0\">".__('All feeds')."</option>";
1759 }
1760 }
1761
1762 if (get_pref('ENABLE_FEED_CATS')) {
1763
1764 if ($root_id)
1765 $parent_qpart = "parent_cat = '$root_id'";
1766 else
1767 $parent_qpart = "parent_cat IS NULL";
1768
1769 $result = db_query("SELECT id,title,
1770 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1771 c2.parent_cat = ttrss_feed_categories.id) AS num_children
1772 FROM ttrss_feed_categories
1773 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1774
1775 while ($line = db_fetch_assoc($result)) {
1776
1777 for ($i = 0; $i < $nest_level; $i++)
1778 $line["title"] = " - " . $line["title"];
1779
1780 $is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
1781
1782 printf("<option $is_selected value='CAT:%d'>%s</option>",
1783 $line["id"], htmlspecialchars($line["title"]));
1784
1785 if ($line["num_children"] > 0)
1786 print_feed_select($id, $default_id, $attributes,
1787 $include_all_feeds, $line["id"], $nest_level+1);
1788
1789 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1790 WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1791
1792 while ($fline = db_fetch_assoc($feed_result)) {
1793 $is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
1794
1795 $fline["title"] = " + " . $fline["title"];
1796
1797 for ($i = 0; $i < $nest_level; $i++)
1798 $fline["title"] = " - " . $fline["title"];
1799
1800 printf("<option $is_selected value='%d'>%s</option>",
1801 $fline["id"], htmlspecialchars($fline["title"]));
1802 }
1803 }
1804
1805 if (!$root_id) {
1806 $default_is_cat = ($default_id == "CAT:0");
1807 $is_selected = $default_is_cat ? "selected=\"1\"" : "";
1808
1809 printf("<option $is_selected value='CAT:0'>%s</option>",
1810 __("Uncategorized"));
1811
1812 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1813 WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1814
1815 while ($fline = db_fetch_assoc($feed_result)) {
1816 $is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
1817
1818 $fline["title"] = " + " . $fline["title"];
1819
1820 for ($i = 0; $i < $nest_level; $i++)
1821 $fline["title"] = " - " . $fline["title"];
1822
1823 printf("<option $is_selected value='%d'>%s</option>",
1824 $fline["id"], htmlspecialchars($fline["title"]));
1825 }
1826 }
1827
1828 } else {
1829 $result = db_query("SELECT id,title FROM ttrss_feeds
1830 WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1831
1832 while ($line = db_fetch_assoc($result)) {
1833
1834 $is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
1835
1836 printf("<option $is_selected value='%d'>%s</option>",
1837 $line["id"], htmlspecialchars($line["title"]));
1838 }
1839 }
1840
1841 if (!$root_id) {
1842 print "</select>";
1843 }
1844 }
1845
1846 function print_feed_cat_select($id, $default_id,
1847 $attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
1848
1849 if (!$root_id) {
1850 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1851 }
1852
1853 if ($root_id)
1854 $parent_qpart = "parent_cat = '$root_id'";
1855 else
1856 $parent_qpart = "parent_cat IS NULL";
1857
1858 $result = db_query("SELECT id,title,
1859 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1860 c2.parent_cat = ttrss_feed_categories.id) AS num_children
1861 FROM ttrss_feed_categories
1862 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1863
1864 while ($line = db_fetch_assoc($result)) {
1865 if ($line["id"] == $default_id) {
1866 $is_selected = "selected=\"1\"";
1867 } else {
1868 $is_selected = "";
1869 }
1870
1871 for ($i = 0; $i < $nest_level; $i++)
1872 $line["title"] = " - " . $line["title"];
1873
1874 if ($line["title"])
1875 printf("<option $is_selected value='%d'>%s</option>",
1876 $line["id"], htmlspecialchars($line["title"]));
1877
1878 if ($line["num_children"] > 0)
1879 print_feed_cat_select($id, $default_id, $attributes,
1880 $include_all_cats, $line["id"], $nest_level+1);
1881 }
1882
1883 if (!$root_id) {
1884 if ($include_all_cats) {
1885 if (db_num_rows($result) > 0) {
1886 print "<option disabled=\"1\">--------</option>";
1887 }
1888
1889 if ($default_id == 0) {
1890 $is_selected = "selected=\"1\"";
1891 } else {
1892 $is_selected = "";
1893 }
1894
1895 print "<option $is_selected value=\"0\">".__('Uncategorized')."</option>";
1896 }
1897 print "</select>";
1898 }
1899 }
1900
1901 function checkbox_to_sql_bool($val) {
1902 return ($val == "on") ? "true" : "false";
1903 }
1904
1905 function getFeedCatTitle($id) {
1906 if ($id == -1) {
1907 return __("Special");
1908 } else if ($id < LABEL_BASE_INDEX) {
1909 return __("Labels");
1910 } else if ($id > 0) {
1911 $result = db_query("SELECT ttrss_feed_categories.title
1912 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
1913 cat_id = ttrss_feed_categories.id");
1914 if (db_num_rows($result) == 1) {
1915 return db_fetch_result($result, 0, "title");
1916 } else {
1917 return __("Uncategorized");
1918 }
1919 } else {
1920 return "getFeedCatTitle($id) failed";
1921 }
1922
1923 }
1924
1925 function getFeedIcon($id) {
1926 switch ($id) {
1927 case 0:
1928 return "images/archive.png";
1929 break;
1930 case -1:
1931 return "images/star.png";
1932 break;
1933 case -2:
1934 return "images/feed.png";
1935 break;
1936 case -3:
1937 return "images/fresh.png";
1938 break;
1939 case -4:
1940 return "images/folder.png";
1941 break;
1942 case -6:
1943 return "images/time.png";
1944 break;
1945 default:
1946 if ($id < LABEL_BASE_INDEX) {
1947 return "images/label.png";
1948 } else {
1949 if (file_exists(ICONS_DIR . "/$id.ico"))
1950 return ICONS_URL . "/$id.ico";
1951 }
1952 break;
1953 }
1954
1955 return false;
1956 }
1957
1958 function getFeedTitle($id, $cat = false) {
1959 if ($cat) {
1960 return getCategoryTitle($id);
1961 } else if ($id == -1) {
1962 return __("Starred articles");
1963 } else if ($id == -2) {
1964 return __("Published articles");
1965 } else if ($id == -3) {
1966 return __("Fresh articles");
1967 } else if ($id == -4) {
1968 return __("All articles");
1969 } else if ($id === 0 || $id === "0") {
1970 return __("Archived articles");
1971 } else if ($id == -6) {
1972 return __("Recently read");
1973 } else if ($id < LABEL_BASE_INDEX) {
1974 $label_id = feed_to_label_id($id);
1975 $result = db_query("SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
1976 if (db_num_rows($result) == 1) {
1977 return db_fetch_result($result, 0, "caption");
1978 } else {
1979 return "Unknown label ($label_id)";
1980 }
1981
1982 } else if (is_numeric($id) && $id > 0) {
1983 $result = db_query("SELECT title FROM ttrss_feeds WHERE id = '$id'");
1984 if (db_num_rows($result) == 1) {
1985 return db_fetch_result($result, 0, "title");
1986 } else {
1987 return "Unknown feed ($id)";
1988 }
1989 } else {
1990 return $id;
1991 }
1992 }
1993
1994 function uniqid_short() {
1995 return uniqid(base_convert(rand(), 10, 36));
1996 }
1997
1998 // TODO: less dumb splitting
1999 require_once "functions2.php";
2000
2001 ?>
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/