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1 | <?php | |
2 | define('EXPECTED_CONFIG_VERSION', 26); | |
3 | define('SCHEMA_VERSION', 134); | |
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_effective_url = false; | |
15 | $fetch_curl_used = false; | |
16 | $suppress_debugging = false; | |
17 | ||
18 | libxml_disable_entity_loader(true); | |
19 | ||
20 | // separate test because this is included before sanity checks | |
21 | if (function_exists("mb_internal_encoding")) mb_internal_encoding("UTF-8"); | |
22 | ||
23 | date_default_timezone_set('UTC'); | |
24 | if (defined('E_DEPRECATED')) { | |
25 | error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED); | |
26 | } else { | |
27 | error_reporting(E_ALL & ~E_NOTICE); | |
28 | } | |
29 | ||
30 | require_once 'config.php'; | |
31 | ||
32 | /** | |
33 | * Define a constant if not already defined | |
34 | */ | |
35 | function define_default($name, $value) { | |
36 | defined($name) or define($name, $value); | |
37 | } | |
38 | ||
39 | /* Some tunables you can override in config.php using define(): */ | |
40 | ||
41 | define_default('FEED_FETCH_TIMEOUT', 45); | |
42 | // How may seconds to wait for response when requesting feed from a site | |
43 | define_default('FEED_FETCH_NO_CACHE_TIMEOUT', 15); | |
44 | // How may seconds to wait for response when requesting feed from a | |
45 | // site when that feed wasn't cached before | |
46 | define_default('FILE_FETCH_TIMEOUT', 45); | |
47 | // Default timeout when fetching files from remote sites | |
48 | define_default('FILE_FETCH_CONNECT_TIMEOUT', 15); | |
49 | // How many seconds to wait for initial response from website when | |
50 | // fetching files from remote sites | |
51 | define_default('DAEMON_UPDATE_LOGIN_LIMIT', 30); | |
52 | // stop updating feeds if users haven't logged in for X days | |
53 | define_default('DAEMON_FEED_LIMIT', 500); | |
54 | // feed limit for one update batch | |
55 | define_default('DAEMON_SLEEP_INTERVAL', 120); | |
56 | // default sleep interval between feed updates (sec) | |
57 | define_default('MIN_CACHE_FILE_SIZE', 1024); | |
58 | // do not cache files smaller than that (bytes) | |
59 | define_default('MAX_CACHE_FILE_SIZE', 64*1024*1024); | |
60 | // do not cache files larger than that (bytes) | |
61 | define_default('MAX_DOWNLOAD_FILE_SIZE', 16*1024*1024); | |
62 | // do not download general files larger than that (bytes) | |
63 | define_default('CACHE_MAX_DAYS', 7); | |
64 | // max age in days for various automatically cached (temporary) files | |
65 | define_default('MAX_CONDITIONAL_INTERVAL', 3600*12); | |
66 | // max interval between forced unconditional updates for servers | |
67 | // not complying with http if-modified-since (seconds) | |
68 | ||
69 | /* tunables end here */ | |
70 | ||
71 | if (DB_TYPE == "pgsql") { | |
72 | define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE'); | |
73 | } else { | |
74 | define('SUBSTRING_FOR_DATE', 'SUBSTRING'); | |
75 | } | |
76 | ||
77 | /** | |
78 | * Return available translations names. | |
79 | * | |
80 | * @access public | |
81 | * @return array A array of available translations. | |
82 | */ | |
83 | function get_translations() { | |
84 | $tr = array( | |
85 | "auto" => "Detect automatically", | |
86 | "ar_SA" => "العربيّة (Arabic)", | |
87 | "bg_BG" => "Bulgarian", | |
88 | "da_DA" => "Dansk", | |
89 | "ca_CA" => "Català", | |
90 | "cs_CZ" => "Česky", | |
91 | "en_US" => "English", | |
92 | "el_GR" => "Ελληνικά", | |
93 | "es_ES" => "Español (España)", | |
94 | "es_LA" => "Español", | |
95 | "de_DE" => "Deutsch", | |
96 | "fr_FR" => "Français", | |
97 | "hu_HU" => "Magyar (Hungarian)", | |
98 | "it_IT" => "Italiano", | |
99 | "ja_JP" => "日本語 (Japanese)", | |
100 | "lv_LV" => "Latviešu", | |
101 | "nb_NO" => "Norwegian bokmål", | |
102 | "nl_NL" => "Dutch", | |
103 | "pl_PL" => "Polski", | |
104 | "ru_RU" => "Русский", | |
105 | "pt_BR" => "Portuguese/Brazil", | |
106 | "pt_PT" => "Portuguese/Portugal", | |
107 | "zh_CN" => "Simplified Chinese", | |
108 | "zh_TW" => "Traditional Chinese", | |
109 | "sv_SE" => "Svenska", | |
110 | "fi_FI" => "Suomi", | |
111 | "tr_TR" => "Türkçe"); | |
112 | ||
113 | return $tr; | |
114 | } | |
115 | ||
116 | require_once "lib/accept-to-gettext.php"; | |
117 | require_once "lib/gettext/gettext.inc"; | |
118 | ||
119 | function startup_gettext() { | |
120 | ||
121 | # Get locale from Accept-Language header | |
122 | $lang = al2gt(array_keys(get_translations()), "text/html"); | |
123 | ||
124 | if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) { | |
125 | $lang = _TRANSLATION_OVERRIDE_DEFAULT; | |
126 | } | |
127 | ||
128 | if ($_SESSION["uid"] && get_schema_version() >= 120) { | |
129 | $pref_lang = get_pref("USER_LANGUAGE", $_SESSION["uid"]); | |
130 | ||
131 | if ($pref_lang && $pref_lang != 'auto') { | |
132 | $lang = $pref_lang; | |
133 | } | |
134 | } | |
135 | ||
136 | if ($lang) { | |
137 | if (defined('LC_MESSAGES')) { | |
138 | _setlocale(LC_MESSAGES, $lang); | |
139 | } else if (defined('LC_ALL')) { | |
140 | _setlocale(LC_ALL, $lang); | |
141 | } | |
142 | ||
143 | _bindtextdomain("messages", "locale"); | |
144 | ||
145 | _textdomain("messages"); | |
146 | _bind_textdomain_codeset("messages", "UTF-8"); | |
147 | } | |
148 | } | |
149 | ||
150 | require_once 'db-prefs.php'; | |
151 | require_once 'version.php'; | |
152 | require_once 'controls.php'; | |
153 | ||
154 | define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)'); | |
155 | ini_set('user_agent', SELF_USER_AGENT); | |
156 | ||
157 | $schema_version = false; | |
158 | ||
159 | function _debug_suppress($suppress) { | |
160 | global $suppress_debugging; | |
161 | ||
162 | $suppress_debugging = $suppress; | |
163 | } | |
164 | ||
165 | /** | |
166 | * Print a timestamped debug message. | |
167 | * | |
168 | * @param string $msg The debug message. | |
169 | * @return void | |
170 | */ | |
171 | function _debug($msg, $show = true) { | |
172 | global $suppress_debugging; | |
173 | ||
174 | //echo "[$suppress_debugging] $msg $show\n"; | |
175 | ||
176 | if ($suppress_debugging) return false; | |
177 | ||
178 | $ts = strftime("%H:%M:%S", time()); | |
179 | if (function_exists('posix_getpid')) { | |
180 | $ts = "$ts/" . posix_getpid(); | |
181 | } | |
182 | ||
183 | if ($show && !(defined('QUIET') && QUIET)) { | |
184 | print "[$ts] $msg\n"; | |
185 | } | |
186 | ||
187 | if (defined('LOGFILE')) { | |
188 | $fp = fopen(LOGFILE, 'a+'); | |
189 | ||
190 | if ($fp) { | |
191 | $locked = false; | |
192 | ||
193 | if (function_exists("flock")) { | |
194 | $tries = 0; | |
195 | ||
196 | // try to lock logfile for writing | |
197 | while ($tries < 5 && !$locked = flock($fp, LOCK_EX | LOCK_NB)) { | |
198 | sleep(1); | |
199 | ++$tries; | |
200 | } | |
201 | ||
202 | if (!$locked) { | |
203 | fclose($fp); | |
204 | return; | |
205 | } | |
206 | } | |
207 | ||
208 | fputs($fp, "[$ts] $msg\n"); | |
209 | ||
210 | if (function_exists("flock")) { | |
211 | flock($fp, LOCK_UN); | |
212 | } | |
213 | ||
214 | fclose($fp); | |
215 | } | |
216 | } | |
217 | ||
218 | } // function _debug | |
219 | ||
220 | /** | |
221 | * Purge a feed old posts. | |
222 | * | |
223 | * @param mixed $link A database connection. | |
224 | * @param mixed $feed_id The id of the purged feed. | |
225 | * @param mixed $purge_interval Olderness of purged posts. | |
226 | * @param boolean $debug Set to True to enable the debug. False by default. | |
227 | * @access public | |
228 | * @return void | |
229 | */ | |
230 | function purge_feed($feed_id, $purge_interval, $debug = false) { | |
231 | ||
232 | if (!$purge_interval) $purge_interval = feed_purge_interval($feed_id); | |
233 | ||
234 | $pdo = Db::pdo(); | |
235 | ||
236 | $sth = $pdo->prepare("SELECT owner_uid FROM ttrss_feeds WHERE id = ?"); | |
237 | $sth->execute([$feed_id]); | |
238 | ||
239 | $owner_uid = false; | |
240 | ||
241 | if ($row = $sth->fetch()) { | |
242 | $owner_uid = $row["owner_uid"]; | |
243 | } | |
244 | ||
245 | if ($purge_interval == -1 || !$purge_interval) { | |
246 | if ($owner_uid) { | |
247 | CCache::update($feed_id, $owner_uid); | |
248 | } | |
249 | return; | |
250 | } | |
251 | ||
252 | if (!$owner_uid) return; | |
253 | ||
254 | if (FORCE_ARTICLE_PURGE == 0) { | |
255 | $purge_unread = get_pref("PURGE_UNREAD_ARTICLES", | |
256 | $owner_uid, false); | |
257 | } else { | |
258 | $purge_unread = true; | |
259 | $purge_interval = FORCE_ARTICLE_PURGE; | |
260 | } | |
261 | ||
262 | if (!$purge_unread) | |
263 | $query_limit = " unread = false AND "; | |
264 | else | |
265 | $query_limit = ""; | |
266 | ||
267 | $purge_interval = (int) $purge_interval; | |
268 | ||
269 | if (DB_TYPE == "pgsql") { | |
270 | $sth = $pdo->prepare("DELETE FROM ttrss_user_entries | |
271 | USING ttrss_entries | |
272 | WHERE ttrss_entries.id = ref_id AND | |
273 | marked = false AND | |
274 | feed_id = ? AND | |
275 | $query_limit | |
276 | ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'"); | |
277 | $sth->execute([$feed_id]); | |
278 | ||
279 | } else { | |
280 | $sth = $pdo->prepare("DELETE FROM ttrss_user_entries | |
281 | USING ttrss_user_entries, ttrss_entries | |
282 | WHERE ttrss_entries.id = ref_id AND | |
283 | marked = false AND | |
284 | feed_id = ? AND | |
285 | $query_limit | |
286 | ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); | |
287 | $sth->execute([$feed_id]); | |
288 | ||
289 | } | |
290 | ||
291 | $rows = $sth->rowCount(); | |
292 | ||
293 | CCache::update($feed_id, $owner_uid); | |
294 | ||
295 | if ($debug) { | |
296 | _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles"); | |
297 | } | |
298 | ||
299 | return $rows; | |
300 | } // function purge_feed | |
301 | ||
302 | function feed_purge_interval($feed_id) { | |
303 | ||
304 | $pdo = DB::pdo(); | |
305 | ||
306 | $sth = $pdo->prepare("SELECT purge_interval, owner_uid FROM ttrss_feeds | |
307 | WHERE id = ?"); | |
308 | $sth->execute([$feed_id]); | |
309 | ||
310 | if ($row = $sth->fetch()) { | |
311 | $purge_interval = $row["purge_interval"]; | |
312 | $owner_uid = $row["owner_uid"]; | |
313 | ||
314 | if ($purge_interval == 0) $purge_interval = get_pref( | |
315 | 'PURGE_OLD_DAYS', $owner_uid); | |
316 | ||
317 | return $purge_interval; | |
318 | ||
319 | } else { | |
320 | return -1; | |
321 | } | |
322 | } | |
323 | ||
324 | // TODO: max_size currently only works for CURL transfers | |
325 | // TODO: multiple-argument way is deprecated, first parameter is a hash now | |
326 | function fetch_file_contents($options /* previously: 0: $url , 1: $type = false, 2: $login = false, 3: $pass = false, | |
327 | 4: $post_query = false, 5: $timeout = false, 6: $timestamp = 0, 7: $useragent = false*/) { | |
328 | ||
329 | global $fetch_last_error; | |
330 | global $fetch_last_error_code; | |
331 | global $fetch_last_error_content; | |
332 | global $fetch_last_content_type; | |
333 | global $fetch_last_modified; | |
334 | global $fetch_effective_url; | |
335 | global $fetch_curl_used; | |
336 | ||
337 | $fetch_last_error = false; | |
338 | $fetch_last_error_code = -1; | |
339 | $fetch_last_error_content = ""; | |
340 | $fetch_last_content_type = ""; | |
341 | $fetch_curl_used = false; | |
342 | $fetch_last_modified = ""; | |
343 | $fetch_effective_url = ""; | |
344 | ||
345 | if (!is_array($options)) { | |
346 | ||
347 | // falling back on compatibility shim | |
348 | $option_names = [ "url", "type", "login", "pass", "post_query", "timeout", "last_modified", "useragent" ]; | |
349 | $tmp = []; | |
350 | ||
351 | for ($i = 0; $i < func_num_args(); $i++) { | |
352 | $tmp[$option_names[$i]] = func_get_arg($i); | |
353 | } | |
354 | ||
355 | $options = $tmp; | |
356 | ||
357 | /*$options = array( | |
358 | "url" => func_get_arg(0), | |
359 | "type" => @func_get_arg(1), | |
360 | "login" => @func_get_arg(2), | |
361 | "pass" => @func_get_arg(3), | |
362 | "post_query" => @func_get_arg(4), | |
363 | "timeout" => @func_get_arg(5), | |
364 | "timestamp" => @func_get_arg(6), | |
365 | "useragent" => @func_get_arg(7) | |
366 | ); */ | |
367 | } | |
368 | ||
369 | $url = $options["url"]; | |
370 | $type = isset($options["type"]) ? $options["type"] : false; | |
371 | $login = isset($options["login"]) ? $options["login"] : false; | |
372 | $pass = isset($options["pass"]) ? $options["pass"] : false; | |
373 | $post_query = isset($options["post_query"]) ? $options["post_query"] : false; | |
374 | $timeout = isset($options["timeout"]) ? $options["timeout"] : false; | |
375 | $last_modified = isset($options["last_modified"]) ? $options["last_modified"] : ""; | |
376 | $useragent = isset($options["useragent"]) ? $options["useragent"] : false; | |
377 | $followlocation = isset($options["followlocation"]) ? $options["followlocation"] : true; | |
378 | $max_size = isset($options["max_size"]) ? $options["max_size"] : MAX_DOWNLOAD_FILE_SIZE; // in bytes | |
379 | $http_accept = isset($options["http_accept"]) ? $options["http_accept"] : false; | |
380 | ||
381 | $url = ltrim($url, ' '); | |
382 | $url = str_replace(' ', '%20', $url); | |
383 | ||
384 | if (strpos($url, "//") === 0) | |
385 | $url = 'http:' . $url; | |
386 | ||
387 | if (!defined('NO_CURL') && function_exists('curl_init') && !ini_get("open_basedir")) { | |
388 | ||
389 | $fetch_curl_used = true; | |
390 | ||
391 | $ch = curl_init($url); | |
392 | ||
393 | $curl_http_headers = []; | |
394 | ||
395 | if ($last_modified && !$post_query) | |
396 | array_push($curl_http_headers, "If-Modified-Since: $last_modified"); | |
397 | ||
398 | if ($http_accept) | |
399 | array_push($curl_http_headers, "Accept: " . $http_accept); | |
400 | ||
401 | if (count($curl_http_headers) > 0) | |
402 | curl_setopt($ch, CURLOPT_HTTPHEADER, $curl_http_headers); | |
403 | ||
404 | curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT); | |
405 | curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT); | |
406 | curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir") && $followlocation); | |
407 | curl_setopt($ch, CURLOPT_MAXREDIRS, 20); | |
408 | curl_setopt($ch, CURLOPT_BINARYTRANSFER, true); | |
409 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); | |
410 | curl_setopt($ch, CURLOPT_HEADER, true); | |
411 | curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY); | |
412 | curl_setopt($ch, CURLOPT_USERAGENT, $useragent ? $useragent : | |
413 | SELF_USER_AGENT); | |
414 | curl_setopt($ch, CURLOPT_ENCODING, ""); | |
415 | //curl_setopt($ch, CURLOPT_REFERER, $url); | |
416 | ||
417 | if ($max_size) { | |
418 | curl_setopt($ch, CURLOPT_NOPROGRESS, false); | |
419 | curl_setopt($ch, CURLOPT_BUFFERSIZE, 16384); // needed to get 5 arguments in progress function? | |
420 | ||
421 | // holy shit closures in php | |
422 | // download & upload are *expected* sizes respectively, could be zero | |
423 | curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, function($curl_handle, $download_size, $downloaded, $upload_size, $uploaded) use( &$max_size) { | |
424 | //_debug("[curl progressfunction] $downloaded $max_size"); | |
425 | ||
426 | return ($downloaded > $max_size) ? 1 : 0; // if max size is set, abort when exceeding it | |
427 | }); | |
428 | ||
429 | } | |
430 | ||
431 | if (!ini_get("open_basedir")) { | |
432 | curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null"); | |
433 | } | |
434 | ||
435 | if (defined('_HTTP_PROXY')) { | |
436 | curl_setopt($ch, CURLOPT_PROXY, _HTTP_PROXY); | |
437 | } | |
438 | ||
439 | if ($post_query) { | |
440 | curl_setopt($ch, CURLOPT_POST, true); | |
441 | curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query); | |
442 | } | |
443 | ||
444 | if ($login && $pass) | |
445 | curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass"); | |
446 | ||
447 | $ret = @curl_exec($ch); | |
448 | ||
449 | $headers_length = curl_getinfo($ch, CURLINFO_HEADER_SIZE); | |
450 | $headers = explode("\r\n", substr($ret, 0, $headers_length)); | |
451 | $contents = substr($ret, $headers_length); | |
452 | ||
453 | foreach ($headers as $header) { | |
454 | if (strstr($header, ": ") !== FALSE) { | |
455 | list ($key, $value) = explode(": ", $header); | |
456 | ||
457 | if (strtolower($key) == "last-modified") { | |
458 | $fetch_last_modified = $value; | |
459 | } | |
460 | } | |
461 | ||
462 | if (substr(strtolower($header), 0, 7) == 'http/1.') { | |
463 | $fetch_last_error_code = (int) substr($header, 9, 3); | |
464 | $fetch_last_error = $header; | |
465 | } | |
466 | } | |
467 | ||
468 | if (curl_errno($ch) === 23 || curl_errno($ch) === 61) { | |
469 | curl_setopt($ch, CURLOPT_ENCODING, 'none'); | |
470 | $contents = @curl_exec($ch); | |
471 | } | |
472 | ||
473 | $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); | |
474 | $fetch_last_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE); | |
475 | ||
476 | $fetch_effective_url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL); | |
477 | ||
478 | $fetch_last_error_code = $http_code; | |
479 | ||
480 | if ($http_code != 200 || $type && strpos($fetch_last_content_type, "$type") === false) { | |
481 | ||
482 | if (curl_errno($ch) != 0) { | |
483 | $fetch_last_error .= "; " . curl_errno($ch) . " " . curl_error($ch); | |
484 | } | |
485 | ||
486 | $fetch_last_error_content = $contents; | |
487 | curl_close($ch); | |
488 | return false; | |
489 | } | |
490 | ||
491 | if (!$contents) { | |
492 | $fetch_last_error = curl_errno($ch) . " " . curl_error($ch); | |
493 | curl_close($ch); | |
494 | return false; | |
495 | } | |
496 | ||
497 | curl_close($ch); | |
498 | ||
499 | return $contents; | |
500 | } else { | |
501 | ||
502 | $fetch_curl_used = false; | |
503 | ||
504 | if ($login && $pass){ | |
505 | $url_parts = array(); | |
506 | ||
507 | preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts); | |
508 | ||
509 | $pass = urlencode($pass); | |
510 | ||
511 | if ($url_parts[1] && $url_parts[2]) { | |
512 | $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2]; | |
513 | } | |
514 | } | |
515 | ||
516 | // TODO: should this support POST requests or not? idk | |
517 | ||
518 | $context_options = array( | |
519 | 'http' => array( | |
520 | 'header' => array( | |
521 | 'Connection: close' | |
522 | ), | |
523 | 'method' => 'GET', | |
524 | 'ignore_errors' => true, | |
525 | 'timeout' => $timeout ? $timeout : FILE_FETCH_TIMEOUT, | |
526 | 'protocol_version'=> 1.1) | |
527 | ); | |
528 | ||
529 | if (!$post_query && $last_modified) | |
530 | array_push($context_options['http']['header'], "If-Modified-Since: $last_modified"); | |
531 | ||
532 | if ($http_accept) | |
533 | array_push($context_options['http']['header'], "Accept: $http_accept"); | |
534 | ||
535 | if (defined('_HTTP_PROXY')) { | |
536 | $context_options['http']['request_fulluri'] = true; | |
537 | $context_options['http']['proxy'] = _HTTP_PROXY; | |
538 | } | |
539 | ||
540 | $context = stream_context_create($context_options); | |
541 | ||
542 | $old_error = error_get_last(); | |
543 | ||
544 | $fetch_effective_url = $url; | |
545 | ||
546 | $data = @file_get_contents($url, false, $context); | |
547 | ||
548 | if (isset($http_response_header) && is_array($http_response_header)) { | |
549 | foreach ($http_response_header as $header) { | |
550 | if (strstr($header, ": ") !== FALSE) { | |
551 | list ($key, $value) = explode(": ", $header); | |
552 | ||
553 | $key = strtolower($key); | |
554 | ||
555 | if ($key == 'content-type') { | |
556 | $fetch_last_content_type = $value; | |
557 | // don't abort here b/c there might be more than one | |
558 | // e.g. if we were being redirected -- last one is the right one | |
559 | } else if ($key == 'last-modified') { | |
560 | $fetch_last_modified = $value; | |
561 | } else if ($key == 'location') { | |
562 | $fetch_effective_url = $value; | |
563 | } | |
564 | } | |
565 | ||
566 | if (substr(strtolower($header), 0, 7) == 'http/1.') { | |
567 | $fetch_last_error_code = (int) substr($header, 9, 3); | |
568 | $fetch_last_error = $header; | |
569 | } | |
570 | } | |
571 | } | |
572 | ||
573 | if ($fetch_last_error_code != 200) { | |
574 | $error = error_get_last(); | |
575 | ||
576 | if ($error['message'] != $old_error['message']) { | |
577 | $fetch_last_error .= "; " . $error["message"]; | |
578 | } | |
579 | ||
580 | $fetch_last_error_content = $data; | |
581 | ||
582 | return false; | |
583 | } | |
584 | return $data; | |
585 | } | |
586 | ||
587 | } | |
588 | ||
589 | /** | |
590 | * Try to determine the favicon URL for a feed. | |
591 | * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/) | |
592 | * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php | |
593 | * | |
594 | * @param string $url A feed or page URL | |
595 | * @access public | |
596 | * @return mixed The favicon URL, or false if none was found. | |
597 | */ | |
598 | function get_favicon_url($url) { | |
599 | ||
600 | $favicon_url = false; | |
601 | ||
602 | if ($html = @fetch_file_contents($url)) { | |
603 | ||
604 | libxml_use_internal_errors(true); | |
605 | ||
606 | $doc = new DOMDocument(); | |
607 | $doc->loadHTML($html); | |
608 | $xpath = new DOMXPath($doc); | |
609 | ||
610 | $base = $xpath->query('/html/head/base[@href]'); | |
611 | foreach ($base as $b) { | |
612 | $url = rewrite_relative_url($url, $b->getAttribute("href")); | |
613 | break; | |
614 | } | |
615 | ||
616 | $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]'); | |
617 | if (count($entries) > 0) { | |
618 | foreach ($entries as $entry) { | |
619 | $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href")); | |
620 | break; | |
621 | } | |
622 | } | |
623 | } | |
624 | ||
625 | if (!$favicon_url) | |
626 | $favicon_url = rewrite_relative_url($url, "/favicon.ico"); | |
627 | ||
628 | return $favicon_url; | |
629 | } // function get_favicon_url | |
630 | ||
631 | function initialize_user_prefs($uid, $profile = false) { | |
632 | ||
633 | if (get_schema_version() < 63) $profile_qpart = ""; | |
634 | ||
635 | $pdo = DB::pdo(); | |
636 | $in_nested_tr = false; | |
637 | ||
638 | try { | |
639 | $pdo->beginTransaction(); | |
640 | } catch (Exception $e) { | |
641 | $in_nested_tr = true; | |
642 | } | |
643 | ||
644 | $sth = $pdo->query("SELECT pref_name,def_value FROM ttrss_prefs"); | |
645 | ||
646 | $profile = $profile ? $profile : null; | |
647 | ||
648 | $u_sth = $pdo->prepare("SELECT pref_name | |
649 | FROM ttrss_user_prefs WHERE owner_uid = :uid AND | |
650 | (profile = :profile OR (:profile IS NULL AND profile IS NULL))"); | |
651 | $u_sth->execute([':uid' => $uid, ':profile' => $profile]); | |
652 | ||
653 | $active_prefs = array(); | |
654 | ||
655 | while ($line = $u_sth->fetch()) { | |
656 | array_push($active_prefs, $line["pref_name"]); | |
657 | } | |
658 | ||
659 | while ($line = $sth->fetch()) { | |
660 | if (array_search($line["pref_name"], $active_prefs) === FALSE) { | |
661 | // print "adding " . $line["pref_name"] . "<br>"; | |
662 | ||
663 | if (get_schema_version() < 63) { | |
664 | $i_sth = $pdo->prepare("INSERT INTO ttrss_user_prefs | |
665 | (owner_uid,pref_name,value) VALUES | |
666 | (?, ?, ?)"); | |
667 | $i_sth->execute([$uid, $line["pref_name"], $line["def_value"]]); | |
668 | ||
669 | } else { | |
670 | $i_sth = $pdo->prepare("INSERT INTO ttrss_user_prefs | |
671 | (owner_uid,pref_name,value, profile) VALUES | |
672 | (?, ?, ?, ?)"); | |
673 | $i_sth->execute([$uid, $line["pref_name"], $line["def_value"], $profile]); | |
674 | } | |
675 | ||
676 | } | |
677 | } | |
678 | ||
679 | if (!$in_nested_tr) $pdo->commit(); | |
680 | ||
681 | } | |
682 | ||
683 | function get_ssl_certificate_id() { | |
684 | if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) { | |
685 | return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] . | |
686 | $_SERVER["REDIRECT_SSL_CLIENT_V_START"] . | |
687 | $_SERVER["REDIRECT_SSL_CLIENT_V_END"] . | |
688 | $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]); | |
689 | } | |
690 | if ($_SERVER["SSL_CLIENT_M_SERIAL"]) { | |
691 | return sha1($_SERVER["SSL_CLIENT_M_SERIAL"] . | |
692 | $_SERVER["SSL_CLIENT_V_START"] . | |
693 | $_SERVER["SSL_CLIENT_V_END"] . | |
694 | $_SERVER["SSL_CLIENT_S_DN"]); | |
695 | } | |
696 | return ""; | |
697 | } | |
698 | ||
699 | function authenticate_user($login, $password, $check_only = false) { | |
700 | ||
701 | if (!SINGLE_USER_MODE) { | |
702 | $user_id = false; | |
703 | $auth_module = false; | |
704 | ||
705 | foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) { | |
706 | ||
707 | $user_id = (int) $plugin->authenticate($login, $password); | |
708 | ||
709 | if ($user_id) { | |
710 | $auth_module = strtolower(get_class($plugin)); | |
711 | break; | |
712 | } | |
713 | } | |
714 | ||
715 | if ($user_id && !$check_only) { | |
716 | ||
717 | session_start(); | |
718 | session_regenerate_id(true); | |
719 | ||
720 | $_SESSION["uid"] = $user_id; | |
721 | $_SESSION["version"] = VERSION_STATIC; | |
722 | $_SESSION["auth_module"] = $auth_module; | |
723 | ||
724 | $pdo = DB::pdo(); | |
725 | $sth = $pdo->prepare("SELECT login,access_level,pwd_hash FROM ttrss_users | |
726 | WHERE id = ?"); | |
727 | $sth->execute([$user_id]); | |
728 | $row = $sth->fetch(); | |
729 | ||
730 | $_SESSION["name"] = $row["login"]; | |
731 | $_SESSION["access_level"] = $row["access_level"]; | |
732 | $_SESSION["csrf_token"] = uniqid_short(); | |
733 | ||
734 | $usth = $pdo->prepare("UPDATE ttrss_users SET last_login = NOW() WHERE id = ?"); | |
735 | $usth->execute([$user_id]); | |
736 | ||
737 | $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"]; | |
738 | $_SESSION["user_agent"] = sha1($_SERVER['HTTP_USER_AGENT']); | |
739 | $_SESSION["pwd_hash"] = $row["pwd_hash"]; | |
740 | ||
741 | $_SESSION["last_version_check"] = time(); | |
742 | ||
743 | initialize_user_prefs($_SESSION["uid"]); | |
744 | ||
745 | return true; | |
746 | } | |
747 | ||
748 | return false; | |
749 | ||
750 | } else { | |
751 | ||
752 | $_SESSION["uid"] = 1; | |
753 | $_SESSION["name"] = "admin"; | |
754 | $_SESSION["access_level"] = 10; | |
755 | ||
756 | $_SESSION["hide_hello"] = true; | |
757 | $_SESSION["hide_logout"] = true; | |
758 | ||
759 | $_SESSION["auth_module"] = false; | |
760 | ||
761 | if (!$_SESSION["csrf_token"]) { | |
762 | $_SESSION["csrf_token"] = uniqid_short(); | |
763 | } | |
764 | ||
765 | $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"]; | |
766 | ||
767 | initialize_user_prefs($_SESSION["uid"]); | |
768 | ||
769 | return true; | |
770 | } | |
771 | } | |
772 | ||
773 | // this is used for user http parameters unless HTML code is actually needed | |
774 | function clean($param) { | |
775 | if (is_array($param)) { | |
776 | return array_map("strip_tags", $param); | |
777 | } else if (is_string($param)) { | |
778 | return strip_tags($param); | |
779 | } else { | |
780 | return $param; | |
781 | } | |
782 | } | |
783 | ||
784 | function make_password($length = 8) { | |
785 | ||
786 | $password = ""; | |
787 | $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ"; | |
788 | ||
789 | $i = 0; | |
790 | ||
791 | while ($i < $length) { | |
792 | $char = substr($possible, mt_rand(0, strlen($possible)-1), 1); | |
793 | ||
794 | if (!strstr($password, $char)) { | |
795 | $password .= $char; | |
796 | $i++; | |
797 | } | |
798 | } | |
799 | return $password; | |
800 | } | |
801 | ||
802 | // this is called after user is created to initialize default feeds, labels | |
803 | // or whatever else | |
804 | ||
805 | // user preferences are checked on every login, not here | |
806 | ||
807 | function initialize_user($uid) { | |
808 | ||
809 | $pdo = DB::pdo(); | |
810 | ||
811 | $sth = $pdo->prepare("insert into ttrss_feeds (owner_uid,title,feed_url) | |
812 | values (?, 'Tiny Tiny RSS: Forum', | |
813 | 'http://tt-rss.org/forum/rss.php')"); | |
814 | $sth->execute([$uid]); | |
815 | } | |
816 | ||
817 | function logout_user() { | |
818 | @session_destroy(); | |
819 | if (isset($_COOKIE[session_name()])) { | |
820 | setcookie(session_name(), '', time()-42000, '/'); | |
821 | } | |
822 | session_commit(); | |
823 | } | |
824 | ||
825 | function validate_csrf($csrf_token) { | |
826 | return $csrf_token == $_SESSION['csrf_token']; | |
827 | } | |
828 | ||
829 | function load_user_plugins($owner_uid, $pluginhost = false) { | |
830 | ||
831 | if (!$pluginhost) $pluginhost = PluginHost::getInstance(); | |
832 | ||
833 | if ($owner_uid && SCHEMA_VERSION >= 100) { | |
834 | $plugins = get_pref("_ENABLED_PLUGINS", $owner_uid); | |
835 | ||
836 | $pluginhost->load($plugins, PluginHost::KIND_USER, $owner_uid); | |
837 | ||
838 | if (get_schema_version() > 100) { | |
839 | $pluginhost->load_data(); | |
840 | } | |
841 | } | |
842 | } | |
843 | ||
844 | function login_sequence() { | |
845 | $pdo = Db::pdo(); | |
846 | ||
847 | if (SINGLE_USER_MODE) { | |
848 | @session_start(); | |
849 | authenticate_user("admin", null); | |
850 | startup_gettext(); | |
851 | load_user_plugins($_SESSION["uid"]); | |
852 | } else { | |
853 | if (!validate_session()) $_SESSION["uid"] = false; | |
854 | ||
855 | if (!$_SESSION["uid"]) { | |
856 | ||
857 | if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) { | |
858 | $_SESSION["ref_schema_version"] = get_schema_version(true); | |
859 | } else { | |
860 | authenticate_user(null, null, true); | |
861 | } | |
862 | ||
863 | if (!$_SESSION["uid"]) { | |
864 | logout_user(); | |
865 | ||
866 | render_login_form(); | |
867 | exit; | |
868 | } | |
869 | ||
870 | } else { | |
871 | /* bump login timestamp */ | |
872 | $sth = $pdo->prepare("UPDATE ttrss_users SET last_login = NOW() WHERE id = ?"); | |
873 | $sth->execute([$_SESSION['uid']]); | |
874 | ||
875 | $_SESSION["last_login_update"] = time(); | |
876 | } | |
877 | ||
878 | if ($_SESSION["uid"]) { | |
879 | startup_gettext(); | |
880 | load_user_plugins($_SESSION["uid"]); | |
881 | ||
882 | /* cleanup ccache */ | |
883 | ||
884 | $sth = $pdo->prepare("DELETE FROM ttrss_counters_cache WHERE owner_uid = ? | |
885 | AND | |
886 | (SELECT COUNT(id) FROM ttrss_feeds WHERE | |
887 | ttrss_feeds.id = feed_id) = 0"); | |
888 | ||
889 | $sth->execute([$_SESSION['uid']]); | |
890 | ||
891 | $sth = $pdo->prepare("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ? | |
892 | AND | |
893 | (SELECT COUNT(id) FROM ttrss_feed_categories WHERE | |
894 | ttrss_feed_categories.id = feed_id) = 0"); | |
895 | ||
896 | $sth->execute([$_SESSION['uid']]); | |
897 | } | |
898 | ||
899 | } | |
900 | } | |
901 | ||
902 | function truncate_string($str, $max_len, $suffix = '…') { | |
903 | if (mb_strlen($str, "utf-8") > $max_len) { | |
904 | return mb_substr($str, 0, $max_len, "utf-8") . $suffix; | |
905 | } else { | |
906 | return $str; | |
907 | } | |
908 | } | |
909 | ||
910 | // is not utf8 clean | |
911 | function truncate_middle($str, $max_len, $suffix = '…') { | |
912 | if (strlen($str) > $max_len) { | |
913 | return substr_replace($str, $suffix, $max_len / 2, mb_strlen($str) - $max_len); | |
914 | } else { | |
915 | return $str; | |
916 | } | |
917 | } | |
918 | ||
919 | function convert_timestamp($timestamp, $source_tz, $dest_tz) { | |
920 | ||
921 | try { | |
922 | $source_tz = new DateTimeZone($source_tz); | |
923 | } catch (Exception $e) { | |
924 | $source_tz = new DateTimeZone('UTC'); | |
925 | } | |
926 | ||
927 | try { | |
928 | $dest_tz = new DateTimeZone($dest_tz); | |
929 | } catch (Exception $e) { | |
930 | $dest_tz = new DateTimeZone('UTC'); | |
931 | } | |
932 | ||
933 | $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz); | |
934 | return $dt->format('U') + $dest_tz->getOffset($dt); | |
935 | } | |
936 | ||
937 | function make_local_datetime($timestamp, $long, $owner_uid = false, | |
938 | $no_smart_dt = false, $eta_min = false) { | |
939 | ||
940 | if (!$owner_uid) $owner_uid = $_SESSION['uid']; | |
941 | if (!$timestamp) $timestamp = '1970-01-01 0:00'; | |
942 | ||
943 | global $utc_tz; | |
944 | global $user_tz; | |
945 | ||
946 | if (!$utc_tz) $utc_tz = new DateTimeZone('UTC'); | |
947 | ||
948 | $timestamp = substr($timestamp, 0, 19); | |
949 | ||
950 | # We store date in UTC internally | |
951 | $dt = new DateTime($timestamp, $utc_tz); | |
952 | ||
953 | $user_tz_string = get_pref('USER_TIMEZONE', $owner_uid); | |
954 | ||
955 | if ($user_tz_string != 'Automatic') { | |
956 | ||
957 | try { | |
958 | if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string); | |
959 | } catch (Exception $e) { | |
960 | $user_tz = $utc_tz; | |
961 | } | |
962 | ||
963 | $tz_offset = $user_tz->getOffset($dt); | |
964 | } else { | |
965 | $tz_offset = (int) -$_SESSION["clientTzOffset"]; | |
966 | } | |
967 | ||
968 | $user_timestamp = $dt->format('U') + $tz_offset; | |
969 | ||
970 | if (!$no_smart_dt) { | |
971 | return smart_date_time($user_timestamp, | |
972 | $tz_offset, $owner_uid, $eta_min); | |
973 | } else { | |
974 | if ($long) | |
975 | $format = get_pref('LONG_DATE_FORMAT', $owner_uid); | |
976 | else | |
977 | $format = get_pref('SHORT_DATE_FORMAT', $owner_uid); | |
978 | ||
979 | return date($format, $user_timestamp); | |
980 | } | |
981 | } | |
982 | ||
983 | function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false, $eta_min = false) { | |
984 | if (!$owner_uid) $owner_uid = $_SESSION['uid']; | |
985 | ||
986 | if ($eta_min && time() + $tz_offset - $timestamp < 3600) { | |
987 | return T_sprintf("%d min", date("i", time() + $tz_offset - $timestamp)); | |
988 | } else if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) { | |
989 | return date("G:i", $timestamp); | |
990 | } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) { | |
991 | $format = get_pref('SHORT_DATE_FORMAT', $owner_uid); | |
992 | return date($format, $timestamp); | |
993 | } else { | |
994 | $format = get_pref('LONG_DATE_FORMAT', $owner_uid); | |
995 | return date($format, $timestamp); | |
996 | } | |
997 | } | |
998 | ||
999 | function sql_bool_to_bool($s) { | |
1000 | return $s && ($s !== "f" && $s !== "false"); //no-op for PDO, backwards compat for legacy layer | |
1001 | } | |
1002 | ||
1003 | function bool_to_sql_bool($s) { | |
1004 | return $s ? 1 : 0; | |
1005 | } | |
1006 | ||
1007 | // Session caching removed due to causing wrong redirects to upgrade | |
1008 | // script when get_schema_version() is called on an obsolete session | |
1009 | // created on a previous schema version. | |
1010 | function get_schema_version($nocache = false) { | |
1011 | global $schema_version; | |
1012 | ||
1013 | $pdo = DB::pdo(); | |
1014 | ||
1015 | if (!$schema_version && !$nocache) { | |
1016 | $row = $pdo->query("SELECT schema_version FROM ttrss_version")->fetch(); | |
1017 | $version = $row["schema_version"]; | |
1018 | $schema_version = $version; | |
1019 | return $version; | |
1020 | } else { | |
1021 | return $schema_version; | |
1022 | } | |
1023 | } | |
1024 | ||
1025 | function sanity_check() { | |
1026 | require_once 'errors.php'; | |
1027 | global $ERRORS; | |
1028 | ||
1029 | $error_code = 0; | |
1030 | $schema_version = get_schema_version(true); | |
1031 | ||
1032 | if ($schema_version != SCHEMA_VERSION) { | |
1033 | $error_code = 5; | |
1034 | } | |
1035 | ||
1036 | return array("code" => $error_code, "message" => $ERRORS[$error_code]); | |
1037 | } | |
1038 | ||
1039 | function file_is_locked($filename) { | |
1040 | if (file_exists(LOCK_DIRECTORY . "/$filename")) { | |
1041 | if (function_exists('flock')) { | |
1042 | $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r"); | |
1043 | if ($fp) { | |
1044 | if (flock($fp, LOCK_EX | LOCK_NB)) { | |
1045 | flock($fp, LOCK_UN); | |
1046 | fclose($fp); | |
1047 | return false; | |
1048 | } | |
1049 | fclose($fp); | |
1050 | return true; | |
1051 | } else { | |
1052 | return false; | |
1053 | } | |
1054 | } | |
1055 | return true; // consider the file always locked and skip the test | |
1056 | } else { | |
1057 | return false; | |
1058 | } | |
1059 | } | |
1060 | ||
1061 | ||
1062 | function make_lockfile($filename) { | |
1063 | $fp = fopen(LOCK_DIRECTORY . "/$filename", "w"); | |
1064 | ||
1065 | if ($fp && flock($fp, LOCK_EX | LOCK_NB)) { | |
1066 | $stat_h = fstat($fp); | |
1067 | $stat_f = stat(LOCK_DIRECTORY . "/$filename"); | |
1068 | ||
1069 | if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { | |
1070 | if ($stat_h["ino"] != $stat_f["ino"] || | |
1071 | $stat_h["dev"] != $stat_f["dev"]) { | |
1072 | ||
1073 | return false; | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | if (function_exists('posix_getpid')) { | |
1078 | fwrite($fp, posix_getpid() . "\n"); | |
1079 | } | |
1080 | return $fp; | |
1081 | } else { | |
1082 | return false; | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | function make_stampfile($filename) { | |
1087 | $fp = fopen(LOCK_DIRECTORY . "/$filename", "w"); | |
1088 | ||
1089 | if (flock($fp, LOCK_EX | LOCK_NB)) { | |
1090 | fwrite($fp, time() . "\n"); | |
1091 | flock($fp, LOCK_UN); | |
1092 | fclose($fp); | |
1093 | return true; | |
1094 | } else { | |
1095 | return false; | |
1096 | } | |
1097 | } | |
1098 | ||
1099 | function sql_random_function() { | |
1100 | if (DB_TYPE == "mysql") { | |
1101 | return "RAND()"; | |
1102 | } else { | |
1103 | return "RANDOM()"; | |
1104 | } | |
1105 | } | |
1106 | ||
1107 | function getFeedUnread($feed, $is_cat = false) { | |
1108 | return Feeds::getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]); | |
1109 | } | |
1110 | ||
1111 | function checkbox_to_sql_bool($val) { | |
1112 | return ($val == "on") ? 1 : 0; | |
1113 | } | |
1114 | ||
1115 | function uniqid_short() { | |
1116 | return uniqid(base_convert(rand(), 10, 36)); | |
1117 | } | |
1118 | ||
1119 | function make_init_params() { | |
1120 | $params = array(); | |
1121 | ||
1122 | foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS", | |
1123 | "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP", | |
1124 | "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", | |
1125 | "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) { | |
1126 | ||
1127 | $params[strtolower($param)] = (int) get_pref($param); | |
1128 | } | |
1129 | ||
1130 | $params["icons_url"] = ICONS_URL; | |
1131 | $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME; | |
1132 | $params["default_view_mode"] = get_pref("_DEFAULT_VIEW_MODE"); | |
1133 | $params["default_view_limit"] = (int) get_pref("_DEFAULT_VIEW_LIMIT"); | |
1134 | $params["default_view_order_by"] = get_pref("_DEFAULT_VIEW_ORDER_BY"); | |
1135 | $params["bw_limit"] = (int) $_SESSION["bw_limit"]; | |
1136 | $params["is_default_pw"] = Pref_Prefs::isdefaultpassword(); | |
1137 | $params["label_base_index"] = (int) LABEL_BASE_INDEX; | |
1138 | ||
1139 | $theme = get_pref( "USER_CSS_THEME", false, false); | |
1140 | $params["theme"] = theme_valid("$theme") ? $theme : ""; | |
1141 | ||
1142 | $params["plugins"] = implode(", ", PluginHost::getInstance()->get_plugin_names()); | |
1143 | ||
1144 | $params["php_platform"] = PHP_OS; | |
1145 | $params["php_version"] = PHP_VERSION; | |
1146 | ||
1147 | $params["sanity_checksum"] = sha1(file_get_contents("include/sanity_check.php")); | |
1148 | ||
1149 | $pdo = Db::pdo(); | |
1150 | ||
1151 | $sth = $pdo->prepare("SELECT MAX(id) AS mid, COUNT(*) AS nf FROM | |
1152 | ttrss_feeds WHERE owner_uid = ?"); | |
1153 | $sth->execute([$_SESSION['uid']]); | |
1154 | $row = $sth->fetch(); | |
1155 | ||
1156 | $max_feed_id = $row["mid"]; | |
1157 | $num_feeds = $row["nf"]; | |
1158 | ||
1159 | $params["max_feed_id"] = (int) $max_feed_id; | |
1160 | $params["num_feeds"] = (int) $num_feeds; | |
1161 | ||
1162 | $params["hotkeys"] = get_hotkeys_map(); | |
1163 | ||
1164 | $params["csrf_token"] = $_SESSION["csrf_token"]; | |
1165 | $params["widescreen"] = (int) $_COOKIE["ttrss_widescreen"]; | |
1166 | ||
1167 | $params['simple_update'] = defined('SIMPLE_UPDATE_MODE') && SIMPLE_UPDATE_MODE; | |
1168 | ||
1169 | $params["icon_alert"] = base64_img("images/alert.png"); | |
1170 | $params["icon_information"] = base64_img("images/information.png"); | |
1171 | $params["icon_cross"] = base64_img("images/cross.png"); | |
1172 | $params["icon_indicator_white"] = base64_img("images/indicator_white.gif"); | |
1173 | ||
1174 | $params["labels"] = Labels::get_all_labels($_SESSION["uid"]); | |
1175 | ||
1176 | return $params; | |
1177 | } | |
1178 | ||
1179 | function get_hotkeys_info() { | |
1180 | $hotkeys = array( | |
1181 | __("Navigation") => array( | |
1182 | "next_feed" => __("Open next feed"), | |
1183 | "prev_feed" => __("Open previous feed"), | |
1184 | "next_article" => __("Open next article"), | |
1185 | "prev_article" => __("Open previous article"), | |
1186 | "next_article_noscroll" => __("Open next article (don't scroll long articles)"), | |
1187 | "prev_article_noscroll" => __("Open previous article (don't scroll long articles)"), | |
1188 | "next_article_noexpand" => __("Move to next article (don't expand or mark read)"), | |
1189 | "prev_article_noexpand" => __("Move to previous article (don't expand or mark read)"), | |
1190 | "search_dialog" => __("Show search dialog")), | |
1191 | __("Article") => array( | |
1192 | "toggle_mark" => __("Toggle starred"), | |
1193 | "toggle_publ" => __("Toggle published"), | |
1194 | "toggle_unread" => __("Toggle unread"), | |
1195 | "edit_tags" => __("Edit tags"), | |
1196 | "open_in_new_window" => __("Open in new window"), | |
1197 | "catchup_below" => __("Mark below as read"), | |
1198 | "catchup_above" => __("Mark above as read"), | |
1199 | "article_scroll_down" => __("Scroll down"), | |
1200 | "article_scroll_up" => __("Scroll up"), | |
1201 | "select_article_cursor" => __("Select article under cursor"), | |
1202 | "email_article" => __("Email article"), | |
1203 | "close_article" => __("Close/collapse article"), | |
1204 | "toggle_expand" => __("Toggle article expansion (combined mode)"), | |
1205 | "toggle_widescreen" => __("Toggle widescreen mode"), | |
1206 | "toggle_embed_original" => __("Toggle embed original")), | |
1207 | __("Article selection") => array( | |
1208 | "select_all" => __("Select all articles"), | |
1209 | "select_unread" => __("Select unread"), | |
1210 | "select_marked" => __("Select starred"), | |
1211 | "select_published" => __("Select published"), | |
1212 | "select_invert" => __("Invert selection"), | |
1213 | "select_none" => __("Deselect everything")), | |
1214 | __("Feed") => array( | |
1215 | "feed_refresh" => __("Refresh current feed"), | |
1216 | "feed_unhide_read" => __("Un/hide read feeds"), | |
1217 | "feed_subscribe" => __("Subscribe to feed"), | |
1218 | "feed_edit" => __("Edit feed"), | |
1219 | "feed_catchup" => __("Mark as read"), | |
1220 | "feed_reverse" => __("Reverse headlines"), | |
1221 | "feed_toggle_vgroup" => __("Toggle headline grouping"), | |
1222 | "feed_debug_update" => __("Debug feed update"), | |
1223 | "feed_debug_viewfeed" => __("Debug viewfeed()"), | |
1224 | "catchup_all" => __("Mark all feeds as read"), | |
1225 | "cat_toggle_collapse" => __("Un/collapse current category"), | |
1226 | "toggle_combined_mode" => __("Toggle combined mode"), | |
1227 | "toggle_cdm_expanded" => __("Toggle auto expand in combined mode")), | |
1228 | __("Go to") => array( | |
1229 | "goto_all" => __("All articles"), | |
1230 | "goto_fresh" => __("Fresh"), | |
1231 | "goto_marked" => __("Starred"), | |
1232 | "goto_published" => __("Published"), | |
1233 | "goto_tagcloud" => __("Tag cloud"), | |
1234 | "goto_prefs" => __("Preferences")), | |
1235 | __("Other") => array( | |
1236 | "create_label" => __("Create label"), | |
1237 | "create_filter" => __("Create filter"), | |
1238 | "collapse_sidebar" => __("Un/collapse sidebar"), | |
1239 | "help_dialog" => __("Show help dialog")) | |
1240 | ); | |
1241 | ||
1242 | foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_HOTKEY_INFO) as $plugin) { | |
1243 | $hotkeys = $plugin->hook_hotkey_info($hotkeys); | |
1244 | } | |
1245 | ||
1246 | return $hotkeys; | |
1247 | } | |
1248 | ||
1249 | function get_hotkeys_map() { | |
1250 | $hotkeys = array( | |
1251 | // "navigation" => array( | |
1252 | "k" => "next_feed", | |
1253 | "j" => "prev_feed", | |
1254 | "n" => "next_article", | |
1255 | "p" => "prev_article", | |
1256 | "(38)|up" => "prev_article", | |
1257 | "(40)|down" => "next_article", | |
1258 | // "^(38)|Ctrl-up" => "prev_article_noscroll", | |
1259 | // "^(40)|Ctrl-down" => "next_article_noscroll", | |
1260 | "(191)|/" => "search_dialog", | |
1261 | // "article" => array( | |
1262 | "s" => "toggle_mark", | |
1263 | "*s" => "toggle_publ", | |
1264 | "u" => "toggle_unread", | |
1265 | "*t" => "edit_tags", | |
1266 | "o" => "open_in_new_window", | |
1267 | "c p" => "catchup_below", | |
1268 | "c n" => "catchup_above", | |
1269 | "*n" => "article_scroll_down", | |
1270 | "*p" => "article_scroll_up", | |
1271 | "*(38)|Shift+up" => "article_scroll_up", | |
1272 | "*(40)|Shift+down" => "article_scroll_down", | |
1273 | "a *w" => "toggle_widescreen", | |
1274 | "a e" => "toggle_embed_original", | |
1275 | "e" => "email_article", | |
1276 | "a q" => "close_article", | |
1277 | // "article_selection" => array( | |
1278 | "a a" => "select_all", | |
1279 | "a u" => "select_unread", | |
1280 | "a *u" => "select_marked", | |
1281 | "a p" => "select_published", | |
1282 | "a i" => "select_invert", | |
1283 | "a n" => "select_none", | |
1284 | // "feed" => array( | |
1285 | "f r" => "feed_refresh", | |
1286 | "f a" => "feed_unhide_read", | |
1287 | "f s" => "feed_subscribe", | |
1288 | "f e" => "feed_edit", | |
1289 | "f q" => "feed_catchup", | |
1290 | "f x" => "feed_reverse", | |
1291 | "f g" => "feed_toggle_vgroup", | |
1292 | "f *d" => "feed_debug_update", | |
1293 | "f *g" => "feed_debug_viewfeed", | |
1294 | "f *c" => "toggle_combined_mode", | |
1295 | "f c" => "toggle_cdm_expanded", | |
1296 | "*q" => "catchup_all", | |
1297 | "x" => "cat_toggle_collapse", | |
1298 | // "goto" => array( | |
1299 | "g a" => "goto_all", | |
1300 | "g f" => "goto_fresh", | |
1301 | "g s" => "goto_marked", | |
1302 | "g p" => "goto_published", | |
1303 | "g t" => "goto_tagcloud", | |
1304 | "g *p" => "goto_prefs", | |
1305 | // "other" => array( | |
1306 | "(9)|Tab" => "select_article_cursor", // tab | |
1307 | "c l" => "create_label", | |
1308 | "c f" => "create_filter", | |
1309 | "c s" => "collapse_sidebar", | |
1310 | "^(191)|Ctrl+/" => "help_dialog", | |
1311 | ); | |
1312 | ||
1313 | if (get_pref('COMBINED_DISPLAY_MODE')) { | |
1314 | $hotkeys["^(38)|Ctrl-up"] = "prev_article_noscroll"; | |
1315 | $hotkeys["^(40)|Ctrl-down"] = "next_article_noscroll"; | |
1316 | } | |
1317 | ||
1318 | foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_HOTKEY_MAP) as $plugin) { | |
1319 | $hotkeys = $plugin->hook_hotkey_map($hotkeys); | |
1320 | } | |
1321 | ||
1322 | $prefixes = array(); | |
1323 | ||
1324 | foreach (array_keys($hotkeys) as $hotkey) { | |
1325 | $pair = explode(" ", $hotkey, 2); | |
1326 | ||
1327 | if (count($pair) > 1 && !in_array($pair[0], $prefixes)) { | |
1328 | array_push($prefixes, $pair[0]); | |
1329 | } | |
1330 | } | |
1331 | ||
1332 | return array($prefixes, $hotkeys); | |
1333 | } | |
1334 | ||
1335 | function check_for_update() { | |
1336 | if (defined("GIT_VERSION_TIMESTAMP")) { | |
1337 | $content = @fetch_file_contents(array("url" => "http://tt-rss.org/version.json", "timeout" => 5)); | |
1338 | ||
1339 | if ($content) { | |
1340 | $content = json_decode($content, true); | |
1341 | ||
1342 | if ($content && isset($content["changeset"])) { | |
1343 | if ((int)GIT_VERSION_TIMESTAMP < (int)$content["changeset"]["timestamp"] && | |
1344 | GIT_VERSION_HEAD != $content["changeset"]["id"]) { | |
1345 | ||
1346 | return $content["changeset"]["id"]; | |
1347 | } | |
1348 | } | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | return ""; | |
1353 | } | |
1354 | ||
1355 | function make_runtime_info($disable_update_check = false) { | |
1356 | $data = array(); | |
1357 | ||
1358 | $pdo = Db::pdo(); | |
1359 | ||
1360 | $sth = $pdo->prepare("SELECT MAX(id) AS mid, COUNT(*) AS nf FROM | |
1361 | ttrss_feeds WHERE owner_uid = ?"); | |
1362 | $sth->execute([$_SESSION['uid']]); | |
1363 | $row = $sth->fetch(); | |
1364 | ||
1365 | $max_feed_id = $row['mid']; | |
1366 | $num_feeds = $row['nf']; | |
1367 | ||
1368 | $data["max_feed_id"] = (int) $max_feed_id; | |
1369 | $data["num_feeds"] = (int) $num_feeds; | |
1370 | ||
1371 | $data['last_article_id'] = Article::getLastArticleId(); | |
1372 | $data['cdm_expanded'] = get_pref('CDM_EXPANDED'); | |
1373 | ||
1374 | $data['dep_ts'] = calculate_dep_timestamp(); | |
1375 | $data['reload_on_ts_change'] = !defined('_NO_RELOAD_ON_TS_CHANGE'); | |
1376 | ||
1377 | $data["labels"] = Labels::get_all_labels($_SESSION["uid"]); | |
1378 | ||
1379 | if (CHECK_FOR_UPDATES && !$disable_update_check && $_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) { | |
1380 | $update_result = @check_for_update(); | |
1381 | ||
1382 | $data["update_result"] = $update_result; | |
1383 | ||
1384 | $_SESSION["last_version_check"] = time(); | |
1385 | } | |
1386 | ||
1387 | if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) { | |
1388 | ||
1389 | $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock"); | |
1390 | ||
1391 | if (time() - $_SESSION["daemon_stamp_check"] > 30) { | |
1392 | ||
1393 | $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp"); | |
1394 | ||
1395 | if ($stamp) { | |
1396 | $stamp_delta = time() - $stamp; | |
1397 | ||
1398 | if ($stamp_delta > 1800) { | |
1399 | $stamp_check = 0; | |
1400 | } else { | |
1401 | $stamp_check = 1; | |
1402 | $_SESSION["daemon_stamp_check"] = time(); | |
1403 | } | |
1404 | ||
1405 | $data['daemon_stamp_ok'] = $stamp_check; | |
1406 | ||
1407 | $stamp_fmt = date("Y.m.d, G:i", $stamp); | |
1408 | ||
1409 | $data['daemon_stamp'] = $stamp_fmt; | |
1410 | } | |
1411 | } | |
1412 | } | |
1413 | ||
1414 | return $data; | |
1415 | } | |
1416 | ||
1417 | function search_to_sql($search, $search_language) { | |
1418 | ||
1419 | $keywords = str_getcsv(trim($search), " "); | |
1420 | $query_keywords = array(); | |
1421 | $search_words = array(); | |
1422 | $search_query_leftover = array(); | |
1423 | ||
1424 | $pdo = Db::pdo(); | |
1425 | ||
1426 | if ($search_language) | |
1427 | $search_language = $pdo->quote(mb_strtolower($search_language)); | |
1428 | else | |
1429 | $search_language = $pdo->quote("english"); | |
1430 | ||
1431 | foreach ($keywords as $k) { | |
1432 | if (strpos($k, "-") === 0) { | |
1433 | $k = substr($k, 1); | |
1434 | $not = "NOT"; | |
1435 | } else { | |
1436 | $not = ""; | |
1437 | } | |
1438 | ||
1439 | $commandpair = explode(":", mb_strtolower($k), 2); | |
1440 | ||
1441 | switch ($commandpair[0]) { | |
1442 | case "title": | |
1443 | if ($commandpair[1]) { | |
1444 | array_push($query_keywords, "($not (LOWER(ttrss_entries.title) LIKE ". | |
1445 | $pdo->quote('%' . mb_strtolower($commandpair[1]) . '%') ."))"); | |
1446 | } else { | |
1447 | array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%') | |
1448 | OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))"); | |
1449 | array_push($search_words, $k); | |
1450 | } | |
1451 | break; | |
1452 | case "author": | |
1453 | if ($commandpair[1]) { | |
1454 | array_push($query_keywords, "($not (LOWER(author) LIKE ". | |
1455 | $pdo->quote('%' . mb_strtolower($commandpair[1]) . '%')."))"); | |
1456 | } else { | |
1457 | array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%') | |
1458 | OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))"); | |
1459 | array_push($search_words, $k); | |
1460 | } | |
1461 | break; | |
1462 | case "note": | |
1463 | if ($commandpair[1]) { | |
1464 | if ($commandpair[1] == "true") | |
1465 | array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))"); | |
1466 | else if ($commandpair[1] == "false") | |
1467 | array_push($query_keywords, "($not (note IS NULL OR note = ''))"); | |
1468 | else | |
1469 | array_push($query_keywords, "($not (LOWER(note) LIKE ". | |
1470 | $pdo->quote('%' . mb_strtolower($commandpair[1]) . '%')."))"); | |
1471 | } else { | |
1472 | array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER(".$pdo->quote("%$k%").") | |
1473 | OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))"); | |
1474 | if (!$not) array_push($search_words, $k); | |
1475 | } | |
1476 | break; | |
1477 | case "star": | |
1478 | ||
1479 | if ($commandpair[1]) { | |
1480 | if ($commandpair[1] == "true") | |
1481 | array_push($query_keywords, "($not (marked = true))"); | |
1482 | else | |
1483 | array_push($query_keywords, "($not (marked = false))"); | |
1484 | } else { | |
1485 | array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER(".$pdo->quote("%$k%").") | |
1486 | OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))"); | |
1487 | if (!$not) array_push($search_words, $k); | |
1488 | } | |
1489 | break; | |
1490 | case "pub": | |
1491 | if ($commandpair[1]) { | |
1492 | if ($commandpair[1] == "true") | |
1493 | array_push($query_keywords, "($not (published = true))"); | |
1494 | else | |
1495 | array_push($query_keywords, "($not (published = false))"); | |
1496 | ||
1497 | } else { | |
1498 | array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%') | |
1499 | OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))"); | |
1500 | if (!$not) array_push($search_words, $k); | |
1501 | } | |
1502 | break; | |
1503 | case "unread": | |
1504 | if ($commandpair[1]) { | |
1505 | if ($commandpair[1] == "true") | |
1506 | array_push($query_keywords, "($not (unread = true))"); | |
1507 | else | |
1508 | array_push($query_keywords, "($not (unread = false))"); | |
1509 | ||
1510 | } else { | |
1511 | array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER(".$pdo->quote("%$k%").") | |
1512 | OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))"); | |
1513 | if (!$not) array_push($search_words, $k); | |
1514 | } | |
1515 | break; | |
1516 | default: | |
1517 | if (strpos($k, "@") === 0) { | |
1518 | ||
1519 | $user_tz_string = get_pref('USER_TIMEZONE', $_SESSION['uid']); | |
1520 | $orig_ts = strtotime(substr($k, 1)); | |
1521 | $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC')); | |
1522 | ||
1523 | //$k = date("Y-m-d", strtotime(substr($k, 1))); | |
1524 | ||
1525 | array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')"); | |
1526 | } else { | |
1527 | ||
1528 | if (DB_TYPE == "pgsql") { | |
1529 | $k = mb_strtolower($k); | |
1530 | array_push($search_query_leftover, $not ? "!$k" : $k); | |
1531 | } else { | |
1532 | array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER(".$pdo->quote("%$k%").") | |
1533 | OR UPPER(ttrss_entries.content) $not LIKE UPPER(".$pdo->quote("%$k%")."))"); | |
1534 | } | |
1535 | ||
1536 | if (!$not) array_push($search_words, $k); | |
1537 | } | |
1538 | } | |
1539 | } | |
1540 | ||
1541 | if (count($search_query_leftover) > 0) { | |
1542 | $search_query_leftover = $pdo->quote(implode(" & ", $search_query_leftover)); | |
1543 | ||
1544 | if (DB_TYPE == "pgsql") { | |
1545 | array_push($query_keywords, | |
1546 | "(tsvector_combined @@ to_tsquery($search_language, $search_query_leftover))"); | |
1547 | } | |
1548 | ||
1549 | } | |
1550 | ||
1551 | $search_query_part = implode("AND", $query_keywords); | |
1552 | ||
1553 | return array($search_query_part, $search_words); | |
1554 | } | |
1555 | ||
1556 | function iframe_whitelisted($entry) { | |
1557 | $whitelist = array("youtube.com", "youtu.be", "vimeo.com", "player.vimeo.com"); | |
1558 | ||
1559 | @$src = parse_url($entry->getAttribute("src"), PHP_URL_HOST); | |
1560 | ||
1561 | if ($src) { | |
1562 | foreach ($whitelist as $w) { | |
1563 | if ($src == $w || $src == "www.$w") | |
1564 | return true; | |
1565 | } | |
1566 | } | |
1567 | ||
1568 | return false; | |
1569 | } | |
1570 | ||
1571 | // check for locally cached (media) URLs and rewrite to local versions | |
1572 | // this is called separately after sanitize() and plugin render article hooks to allow | |
1573 | // plugins work on original source URLs used before caching | |
1574 | ||
1575 | function rewrite_cached_urls($str) { | |
1576 | $charset_hack = '<head> | |
1577 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> | |
1578 | </head>'; | |
1579 | ||
1580 | $res = trim($str); if (!$res) return ''; | |
1581 | ||
1582 | $doc = new DOMDocument(); | |
1583 | $doc->loadHTML($charset_hack . $res); | |
1584 | $xpath = new DOMXPath($doc); | |
1585 | ||
1586 | $entries = $xpath->query('(//img[@src]|//video[@poster]|//video/source[@src]|//audio/source[@src])'); | |
1587 | ||
1588 | $need_saving = false; | |
1589 | ||
1590 | foreach ($entries as $entry) { | |
1591 | ||
1592 | if ($entry->hasAttribute('src') || $entry->hasAttribute('poster')) { | |
1593 | ||
1594 | // should be already absolutized because this is called after sanitize() | |
1595 | $src = $entry->hasAttribute('poster') ? $entry->getAttribute('poster') : $entry->getAttribute('src'); | |
1596 | $cached_filename = CACHE_DIR . '/images/' . sha1($src); | |
1597 | ||
1598 | if (file_exists($cached_filename)) { | |
1599 | ||
1600 | // this is strictly cosmetic | |
1601 | if ($entry->tagName == 'img') { | |
1602 | $suffix = ".png"; | |
1603 | } else if ($entry->parentNode && $entry->parentNode->tagName == "video") { | |
1604 | $suffix = ".mp4"; | |
1605 | } else if ($entry->parentNode && $entry->parentNode->tagName == "audio") { | |
1606 | $suffix = ".ogg"; | |
1607 | } else { | |
1608 | $suffix = ""; | |
1609 | } | |
1610 | ||
1611 | $src = get_self_url_prefix() . '/public.php?op=cached_url&hash=' . sha1($src) . $suffix; | |
1612 | ||
1613 | if ($entry->hasAttribute('poster')) | |
1614 | $entry->setAttribute('poster', $src); | |
1615 | else | |
1616 | $entry->setAttribute('src', $src); | |
1617 | ||
1618 | $need_saving = true; | |
1619 | } | |
1620 | } | |
1621 | } | |
1622 | ||
1623 | if ($need_saving) { | |
1624 | $doc->removeChild($doc->firstChild); //remove doctype | |
1625 | $res = $doc->saveHTML(); | |
1626 | } | |
1627 | ||
1628 | return $res; | |
1629 | } | |
1630 | ||
1631 | function sanitize($str, $force_remove_images = false, $owner = false, $site_url = false, $highlight_words = false, $article_id = false) { | |
1632 | if (!$owner) $owner = $_SESSION["uid"]; | |
1633 | ||
1634 | $res = trim($str); if (!$res) return ''; | |
1635 | ||
1636 | $charset_hack = '<head> | |
1637 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> | |
1638 | </head>'; | |
1639 | ||
1640 | $res = trim($res); if (!$res) return ''; | |
1641 | ||
1642 | libxml_use_internal_errors(true); | |
1643 | ||
1644 | $doc = new DOMDocument(); | |
1645 | $doc->loadHTML($charset_hack . $res); | |
1646 | $xpath = new DOMXPath($doc); | |
1647 | ||
1648 | $rewrite_base_url = $site_url ? $site_url : get_self_url_prefix(); | |
1649 | ||
1650 | $entries = $xpath->query('(//a[@href]|//img[@src]|//video/source[@src]|//audio/source[@src])'); | |
1651 | ||
1652 | foreach ($entries as $entry) { | |
1653 | ||
1654 | if ($entry->hasAttribute('href')) { | |
1655 | $entry->setAttribute('href', | |
1656 | rewrite_relative_url($rewrite_base_url, $entry->getAttribute('href'))); | |
1657 | ||
1658 | $entry->setAttribute('rel', 'noopener noreferrer'); | |
1659 | } | |
1660 | ||
1661 | if ($entry->hasAttribute('src')) { | |
1662 | $src = rewrite_relative_url($rewrite_base_url, $entry->getAttribute('src')); | |
1663 | ||
1664 | // cache stuff has gone to rewrite_cached_urls() | |
1665 | ||
1666 | $entry->setAttribute('src', $src); | |
1667 | } | |
1668 | ||
1669 | if ($entry->nodeName == 'img') { | |
1670 | $entry->setAttribute('referrerpolicy', 'no-referrer'); | |
1671 | ||
1672 | $entry->removeAttribute('width'); | |
1673 | $entry->removeAttribute('height'); | |
1674 | ||
1675 | if ($entry->hasAttribute('src')) { | |
1676 | $is_https_url = parse_url($entry->getAttribute('src'), PHP_URL_SCHEME) === 'https'; | |
1677 | ||
1678 | if (is_prefix_https() && !$is_https_url) { | |
1679 | ||
1680 | if ($entry->hasAttribute('srcset')) { | |
1681 | $entry->removeAttribute('srcset'); | |
1682 | } | |
1683 | ||
1684 | if ($entry->hasAttribute('sizes')) { | |
1685 | $entry->removeAttribute('sizes'); | |
1686 | } | |
1687 | } | |
1688 | } | |
1689 | } | |
1690 | ||
1691 | if ($entry->hasAttribute('src') && | |
1692 | ($owner && get_pref("STRIP_IMAGES", $owner)) || $force_remove_images || $_SESSION["bw_limit"]) { | |
1693 | ||
1694 | $p = $doc->createElement('p'); | |
1695 | ||
1696 | $a = $doc->createElement('a'); | |
1697 | $a->setAttribute('href', $entry->getAttribute('src')); | |
1698 | ||
1699 | $a->appendChild(new DOMText($entry->getAttribute('src'))); | |
1700 | $a->setAttribute('target', '_blank'); | |
1701 | $a->setAttribute('rel', 'noopener noreferrer'); | |
1702 | ||
1703 | $p->appendChild($a); | |
1704 | ||
1705 | if ($entry->nodeName == 'source') { | |
1706 | ||
1707 | if ($entry->parentNode && $entry->parentNode->parentNode) | |
1708 | $entry->parentNode->parentNode->replaceChild($p, $entry->parentNode); | |
1709 | ||
1710 | } else if ($entry->nodeName == 'img') { | |
1711 | ||
1712 | if ($entry->parentNode) | |
1713 | $entry->parentNode->replaceChild($p, $entry); | |
1714 | ||
1715 | } | |
1716 | } | |
1717 | ||
1718 | if (strtolower($entry->nodeName) == "a") { | |
1719 | $entry->setAttribute("target", "_blank"); | |
1720 | $entry->setAttribute("rel", "noopener noreferrer"); | |
1721 | } | |
1722 | } | |
1723 | ||
1724 | $entries = $xpath->query('//iframe'); | |
1725 | foreach ($entries as $entry) { | |
1726 | if (!iframe_whitelisted($entry)) { | |
1727 | $entry->setAttribute('sandbox', 'allow-scripts'); | |
1728 | } else { | |
1729 | if (is_prefix_https()) { | |
1730 | $entry->setAttribute("src", | |
1731 | str_replace("http://", "https://", | |
1732 | $entry->getAttribute("src"))); | |
1733 | } | |
1734 | } | |
1735 | } | |
1736 | ||
1737 | $allowed_elements = array('a', 'abbr', 'address', 'acronym', 'audio', 'article', 'aside', | |
1738 | 'b', 'bdi', 'bdo', 'big', 'blockquote', 'body', 'br', | |
1739 | 'caption', 'cite', 'center', 'code', 'col', 'colgroup', | |
1740 | 'data', 'dd', 'del', 'details', 'description', 'dfn', 'div', 'dl', 'font', | |
1741 | 'dt', 'em', 'footer', 'figure', 'figcaption', | |
1742 | 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'header', 'hr', 'html', 'i', | |
1743 | 'img', 'ins', 'kbd', 'li', 'main', 'mark', 'nav', 'noscript', | |
1744 | 'ol', 'p', 'pre', 'q', 'ruby', 'rp', 'rt', 's', 'samp', 'section', | |
1745 | 'small', 'source', 'span', 'strike', 'strong', 'sub', 'summary', | |
1746 | 'sup', 'table', 'tbody', 'td', 'tfoot', 'th', 'thead', 'time', | |
1747 | 'tr', 'track', 'tt', 'u', 'ul', 'var', 'wbr', 'video', 'xml:namespace' ); | |
1748 | ||
1749 | if ($_SESSION['hasSandbox']) $allowed_elements[] = 'iframe'; | |
1750 | ||
1751 | $disallowed_attributes = array('id', 'style', 'class'); | |
1752 | ||
1753 | foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SANITIZE) as $plugin) { | |
1754 | $retval = $plugin->hook_sanitize($doc, $site_url, $allowed_elements, $disallowed_attributes, $article_id); | |
1755 | if (is_array($retval)) { | |
1756 | $doc = $retval[0]; | |
1757 | $allowed_elements = $retval[1]; | |
1758 | $disallowed_attributes = $retval[2]; | |
1759 | } else { | |
1760 | $doc = $retval; | |
1761 | } | |
1762 | } | |
1763 | ||
1764 | $doc->removeChild($doc->firstChild); //remove doctype | |
1765 | $doc = strip_harmful_tags($doc, $allowed_elements, $disallowed_attributes); | |
1766 | ||
1767 | if ($highlight_words) { | |
1768 | foreach ($highlight_words as $word) { | |
1769 | ||
1770 | // http://stackoverflow.com/questions/4081372/highlight-keywords-in-a-paragraph | |
1771 | ||
1772 | $elements = $xpath->query("//*/text()"); | |
1773 | ||
1774 | foreach ($elements as $child) { | |
1775 | ||
1776 | $fragment = $doc->createDocumentFragment(); | |
1777 | $text = $child->textContent; | |
1778 | ||
1779 | while (($pos = mb_stripos($text, $word)) !== false) { | |
1780 | $fragment->appendChild(new DomText(mb_substr($text, 0, $pos))); | |
1781 | $word = mb_substr($text, $pos, mb_strlen($word)); | |
1782 | $highlight = $doc->createElement('span'); | |
1783 | $highlight->appendChild(new DomText($word)); | |
1784 | $highlight->setAttribute('class', 'highlight'); | |
1785 | $fragment->appendChild($highlight); | |
1786 | $text = mb_substr($text, $pos + mb_strlen($word)); | |
1787 | } | |
1788 | ||
1789 | if (!empty($text)) $fragment->appendChild(new DomText($text)); | |
1790 | ||
1791 | $child->parentNode->replaceChild($fragment, $child); | |
1792 | } | |
1793 | } | |
1794 | } | |
1795 | ||
1796 | $res = $doc->saveHTML(); | |
1797 | ||
1798 | /* strip everything outside of <body>...</body> */ | |
1799 | ||
1800 | $res_frag = array(); | |
1801 | if (preg_match('/<body>(.*)<\/body>/is', $res, $res_frag)) { | |
1802 | return $res_frag[1]; | |
1803 | } else { | |
1804 | return $res; | |
1805 | } | |
1806 | } | |
1807 | ||
1808 | function strip_harmful_tags($doc, $allowed_elements, $disallowed_attributes) { | |
1809 | $xpath = new DOMXPath($doc); | |
1810 | $entries = $xpath->query('//*'); | |
1811 | ||
1812 | foreach ($entries as $entry) { | |
1813 | if (!in_array($entry->nodeName, $allowed_elements)) { | |
1814 | $entry->parentNode->removeChild($entry); | |
1815 | } | |
1816 | ||
1817 | if ($entry->hasAttributes()) { | |
1818 | $attrs_to_remove = array(); | |
1819 | ||
1820 | foreach ($entry->attributes as $attr) { | |
1821 | ||
1822 | if (strpos($attr->nodeName, 'on') === 0) { | |
1823 | array_push($attrs_to_remove, $attr); | |
1824 | } | |
1825 | ||
1826 | if ($attr->nodeName == 'href' && stripos($attr->value, 'javascript:') === 0) { | |
1827 | array_push($attrs_to_remove, $attr); | |
1828 | } | |
1829 | ||
1830 | if (in_array($attr->nodeName, $disallowed_attributes)) { | |
1831 | array_push($attrs_to_remove, $attr); | |
1832 | } | |
1833 | } | |
1834 | ||
1835 | foreach ($attrs_to_remove as $attr) { | |
1836 | $entry->removeAttributeNode($attr); | |
1837 | } | |
1838 | } | |
1839 | } | |
1840 | ||
1841 | return $doc; | |
1842 | } | |
1843 | ||
1844 | function trim_array($array) { | |
1845 | $tmp = $array; | |
1846 | array_walk($tmp, 'trim'); | |
1847 | return $tmp; | |
1848 | } | |
1849 | ||
1850 | function tag_is_valid($tag) { | |
1851 | if (!$tag || is_numeric($tag) || mb_strlen($tag) > 250) | |
1852 | return false; | |
1853 | ||
1854 | return true; | |
1855 | } | |
1856 | ||
1857 | function render_login_form() { | |
1858 | header('Cache-Control: public'); | |
1859 | ||
1860 | require_once "login_form.php"; | |
1861 | exit; | |
1862 | } | |
1863 | ||
1864 | function T_sprintf() { | |
1865 | $args = func_get_args(); | |
1866 | return vsprintf(__(array_shift($args)), $args); | |
1867 | } | |
1868 | ||
1869 | function print_checkpoint($n, $s) { | |
1870 | $ts = microtime(true); | |
1871 | echo sprintf("<!-- CP[$n] %.4f seconds -->\n", $ts - $s); | |
1872 | return $ts; | |
1873 | } | |
1874 | ||
1875 | function sanitize_tag($tag) { | |
1876 | $tag = trim($tag); | |
1877 | ||
1878 | $tag = mb_strtolower($tag, 'utf-8'); | |
1879 | ||
1880 | $tag = preg_replace('/[,\'\"\+\>\<]/', "", $tag); | |
1881 | ||
1882 | if (DB_TYPE == "mysql") { | |
1883 | $tag = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $tag); | |
1884 | } | |
1885 | ||
1886 | return $tag; | |
1887 | } | |
1888 | ||
1889 | function is_server_https() { | |
1890 | return (!empty($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] != 'off')) || $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'; | |
1891 | } | |
1892 | ||
1893 | function is_prefix_https() { | |
1894 | return parse_url(SELF_URL_PATH, PHP_URL_SCHEME) == 'https'; | |
1895 | } | |
1896 | ||
1897 | // this returns SELF_URL_PATH sans ending slash | |
1898 | function get_self_url_prefix() { | |
1899 | if (strrpos(SELF_URL_PATH, "/") === strlen(SELF_URL_PATH)-1) { | |
1900 | return substr(SELF_URL_PATH, 0, strlen(SELF_URL_PATH)-1); | |
1901 | } else { | |
1902 | return SELF_URL_PATH; | |
1903 | } | |
1904 | } | |
1905 | ||
1906 | function encrypt_password($pass, $salt = '', $mode2 = false) { | |
1907 | if ($salt && $mode2) { | |
1908 | return "MODE2:" . hash('sha256', $salt . $pass); | |
1909 | } else if ($salt) { | |
1910 | return "SHA1X:" . sha1("$salt:$pass"); | |
1911 | } else { | |
1912 | return "SHA1:" . sha1($pass); | |
1913 | } | |
1914 | } // function encrypt_password | |
1915 | ||
1916 | function load_filters($feed_id, $owner_uid) { | |
1917 | $filters = array(); | |
1918 | ||
1919 | $feed_id = (int) $feed_id; | |
1920 | $cat_id = (int)Feeds::getFeedCategory($feed_id); | |
1921 | ||
1922 | if ($cat_id == 0) | |
1923 | $null_cat_qpart = "cat_id IS NULL OR"; | |
1924 | else | |
1925 | $null_cat_qpart = ""; | |
1926 | ||
1927 | $pdo = Db::pdo(); | |
1928 | ||
1929 | $sth = $pdo->prepare("SELECT * FROM ttrss_filters2 WHERE | |
1930 | owner_uid = ? AND enabled = true ORDER BY order_id, title"); | |
1931 | $sth->execute([$owner_uid]); | |
1932 | ||
1933 | $check_cats = array_merge( | |
1934 | Feeds::getParentCategories($cat_id, $owner_uid), | |
1935 | [$cat_id]); | |
1936 | ||
1937 | $check_cats_str = join(",", $check_cats); | |
1938 | $check_cats_fullids = array_map(function($a) { return "CAT:$a"; }, $check_cats); | |
1939 | ||
1940 | while ($line = $sth->fetch()) { | |
1941 | $filter_id = $line["id"]; | |
1942 | ||
1943 | $match_any_rule = sql_bool_to_bool($line["match_any_rule"]); | |
1944 | ||
1945 | $sth2 = $pdo->prepare("SELECT | |
1946 | r.reg_exp, r.inverse, r.feed_id, r.cat_id, r.cat_filter, r.match_on, t.name AS type_name | |
1947 | FROM ttrss_filters2_rules AS r, | |
1948 | ttrss_filter_types AS t | |
1949 | WHERE | |
1950 | (match_on IS NOT NULL OR | |
1951 | (($null_cat_qpart (cat_id IS NULL AND cat_filter = false) OR cat_id IN ($check_cats_str)) AND | |
1952 | (feed_id IS NULL OR feed_id = ?))) AND | |
1953 | filter_type = t.id AND filter_id = ?"); | |
1954 | $sth2->execute([$feed_id, $filter_id]); | |
1955 | ||
1956 | $rules = array(); | |
1957 | $actions = array(); | |
1958 | ||
1959 | while ($rule_line = $sth2->fetch()) { | |
1960 | # print_r($rule_line); | |
1961 | ||
1962 | if ($rule_line["match_on"]) { | |
1963 | $match_on = json_decode($rule_line["match_on"], true); | |
1964 | ||
1965 | if (in_array("0", $match_on) || in_array($feed_id, $match_on) || count(array_intersect($check_cats_fullids, $match_on)) > 0) { | |
1966 | ||
1967 | $rule = array(); | |
1968 | $rule["reg_exp"] = $rule_line["reg_exp"]; | |
1969 | $rule["type"] = $rule_line["type_name"]; | |
1970 | $rule["inverse"] = sql_bool_to_bool($rule_line["inverse"]); | |
1971 | ||
1972 | array_push($rules, $rule); | |
1973 | } else if (!$match_any_rule) { | |
1974 | // this filter contains a rule that doesn't match to this feed/category combination | |
1975 | // thus filter has to be rejected | |
1976 | ||
1977 | $rules = []; | |
1978 | break; | |
1979 | } | |
1980 | ||
1981 | } else { | |
1982 | ||
1983 | $rule = array(); | |
1984 | $rule["reg_exp"] = $rule_line["reg_exp"]; | |
1985 | $rule["type"] = $rule_line["type_name"]; | |
1986 | $rule["inverse"] = sql_bool_to_bool($rule_line["inverse"]); | |
1987 | ||
1988 | array_push($rules, $rule); | |
1989 | } | |
1990 | } | |
1991 | ||
1992 | if (count($rules) > 0) { | |
1993 | $sth2 = $pdo->prepare("SELECT a.action_param,t.name AS type_name | |
1994 | FROM ttrss_filters2_actions AS a, | |
1995 | ttrss_filter_actions AS t | |
1996 | WHERE | |
1997 | action_id = t.id AND filter_id = ?"); | |
1998 | $sth2->execute([$filter_id]); | |
1999 | ||
2000 | while ($action_line = $sth2->fetch()) { | |
2001 | # print_r($action_line); | |
2002 | ||
2003 | $action = array(); | |
2004 | $action["type"] = $action_line["type_name"]; | |
2005 | $action["param"] = $action_line["action_param"]; | |
2006 | ||
2007 | array_push($actions, $action); | |
2008 | } | |
2009 | } | |
2010 | ||
2011 | $filter = array(); | |
2012 | $filter["match_any_rule"] = sql_bool_to_bool($line["match_any_rule"]); | |
2013 | $filter["inverse"] = sql_bool_to_bool($line["inverse"]); | |
2014 | $filter["rules"] = $rules; | |
2015 | $filter["actions"] = $actions; | |
2016 | ||
2017 | if (count($rules) > 0 && count($actions) > 0) { | |
2018 | array_push($filters, $filter); | |
2019 | } | |
2020 | } | |
2021 | ||
2022 | return $filters; | |
2023 | } | |
2024 | ||
2025 | function get_score_pic($score) { | |
2026 | if ($score > 100) { | |
2027 | return "score_high.png"; | |
2028 | } else if ($score > 0) { | |
2029 | return "score_half_high.png"; | |
2030 | } else if ($score < -100) { | |
2031 | return "score_low.png"; | |
2032 | } else if ($score < 0) { | |
2033 | return "score_half_low.png"; | |
2034 | } else { | |
2035 | return "score_neutral.png"; | |
2036 | } | |
2037 | } | |
2038 | ||
2039 | function init_plugins() { | |
2040 | PluginHost::getInstance()->load(PLUGINS, PluginHost::KIND_ALL); | |
2041 | ||
2042 | return true; | |
2043 | } | |
2044 | ||
2045 | function add_feed_category($feed_cat, $parent_cat_id = false) { | |
2046 | ||
2047 | if (!$feed_cat) return false; | |
2048 | ||
2049 | $feed_cat = mb_substr($feed_cat, 0, 250); | |
2050 | if (!$parent_cat_id) $parent_cat_id = null; | |
2051 | ||
2052 | $pdo = Db::pdo(); | |
2053 | $tr_in_progress = false; | |
2054 | ||
2055 | try { | |
2056 | $pdo->beginTransaction(); | |
2057 | } catch (Exception $e) { | |
2058 | $tr_in_progress = true; | |
2059 | } | |
2060 | ||
2061 | $sth = $pdo->prepare("SELECT id FROM ttrss_feed_categories | |
2062 | WHERE (parent_cat = :parent OR (:parent IS NULL AND parent_cat IS NULL)) | |
2063 | AND title = :title AND owner_uid = :uid"); | |
2064 | $sth->execute([':parent' => $parent_cat_id, ':title' => $feed_cat, ':uid' => $_SESSION['uid']]); | |
2065 | ||
2066 | if (!$sth->fetch()) { | |
2067 | ||
2068 | $sth = $pdo->prepare("INSERT INTO ttrss_feed_categories (owner_uid,title,parent_cat) | |
2069 | VALUES (?, ?, ?)"); | |
2070 | $sth->execute([$_SESSION['uid'], $feed_cat, $parent_cat_id]); | |
2071 | ||
2072 | if (!$tr_in_progress) $pdo->commit(); | |
2073 | ||
2074 | return true; | |
2075 | } | |
2076 | ||
2077 | $pdo->commit(); | |
2078 | ||
2079 | return false; | |
2080 | } | |
2081 | ||
2082 | /** | |
2083 | * Fixes incomplete URLs by prepending "http://". | |
2084 | * Also replaces feed:// with http://, and | |
2085 | * prepends a trailing slash if the url is a domain name only. | |
2086 | * | |
2087 | * @param string $url Possibly incomplete URL | |
2088 | * | |
2089 | * @return string Fixed URL. | |
2090 | */ | |
2091 | function fix_url($url) { | |
2092 | ||
2093 | // support schema-less urls | |
2094 | if (strpos($url, '//') === 0) { | |
2095 | $url = 'https:' . $url; | |
2096 | } | |
2097 | ||
2098 | if (strpos($url, '://') === false) { | |
2099 | $url = 'http://' . $url; | |
2100 | } else if (substr($url, 0, 5) == 'feed:') { | |
2101 | $url = 'http:' . substr($url, 5); | |
2102 | } | |
2103 | ||
2104 | //prepend slash if the URL has no slash in it | |
2105 | // "http://www.example" -> "http://www.example/" | |
2106 | if (strpos($url, '/', strpos($url, ':') + 3) === false) { | |
2107 | $url .= '/'; | |
2108 | } | |
2109 | ||
2110 | //convert IDNA hostname to punycode if possible | |
2111 | if (function_exists("idn_to_ascii")) { | |
2112 | $parts = parse_url($url); | |
2113 | if (mb_detect_encoding($parts['host']) != 'ASCII') | |
2114 | { | |
2115 | $parts['host'] = idn_to_ascii($parts['host']); | |
2116 | $url = build_url($parts); | |
2117 | } | |
2118 | } | |
2119 | ||
2120 | if ($url != "http:///") | |
2121 | return $url; | |
2122 | else | |
2123 | return ''; | |
2124 | } | |
2125 | ||
2126 | function validate_feed_url($url) { | |
2127 | $parts = parse_url($url); | |
2128 | ||
2129 | return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https'); | |
2130 | ||
2131 | } | |
2132 | ||
2133 | /* function save_email_address($email) { | |
2134 | // FIXME: implement persistent storage of emails | |
2135 | ||
2136 | if (!$_SESSION['stored_emails']) | |
2137 | $_SESSION['stored_emails'] = array(); | |
2138 | ||
2139 | if (!in_array($email, $_SESSION['stored_emails'])) | |
2140 | array_push($_SESSION['stored_emails'], $email); | |
2141 | } */ | |
2142 | ||
2143 | ||
2144 | function get_feed_access_key($feed_id, $is_cat, $owner_uid = false) { | |
2145 | ||
2146 | if (!$owner_uid) $owner_uid = $_SESSION["uid"]; | |
2147 | ||
2148 | $is_cat = bool_to_sql_bool($is_cat); | |
2149 | ||
2150 | $pdo = Db::pdo(); | |
2151 | ||
2152 | $sth = $pdo->prepare("SELECT access_key FROM ttrss_access_keys | |
2153 | WHERE feed_id = ? AND is_cat = ? | |
2154 | AND owner_uid = ?"); | |
2155 | $sth->execute([$feed_id, (int)$is_cat, $owner_uid]); | |
2156 | ||
2157 | if ($row = $sth->fetch()) { | |
2158 | return $row["access_key"]; | |
2159 | } else { | |
2160 | $key = uniqid_short(); | |
2161 | ||
2162 | $sth = $pdo->prepare("INSERT INTO ttrss_access_keys | |
2163 | (access_key, feed_id, is_cat, owner_uid) | |
2164 | VALUES (?, ?, ?, ?)"); | |
2165 | ||
2166 | $sth->execute([$key, $feed_id, (int)$is_cat, $owner_uid]); | |
2167 | ||
2168 | return $key; | |
2169 | } | |
2170 | } | |
2171 | ||
2172 | function get_feeds_from_html($url, $content) | |
2173 | { | |
2174 | $url = fix_url($url); | |
2175 | $baseUrl = substr($url, 0, strrpos($url, '/') + 1); | |
2176 | ||
2177 | libxml_use_internal_errors(true); | |
2178 | ||
2179 | $doc = new DOMDocument(); | |
2180 | $doc->loadHTML($content); | |
2181 | $xpath = new DOMXPath($doc); | |
2182 | $entries = $xpath->query('/html/head/link[@rel="alternate" and '. | |
2183 | '(contains(@type,"rss") or contains(@type,"atom"))]|/html/head/link[@rel="feed"]'); | |
2184 | $feedUrls = array(); | |
2185 | foreach ($entries as $entry) { | |
2186 | if ($entry->hasAttribute('href')) { | |
2187 | $title = $entry->getAttribute('title'); | |
2188 | if ($title == '') { | |
2189 | $title = $entry->getAttribute('type'); | |
2190 | } | |
2191 | $feedUrl = rewrite_relative_url( | |
2192 | $baseUrl, $entry->getAttribute('href') | |
2193 | ); | |
2194 | $feedUrls[$feedUrl] = $title; | |
2195 | } | |
2196 | } | |
2197 | return $feedUrls; | |
2198 | } | |
2199 | ||
2200 | function is_html($content) { | |
2201 | return preg_match("/<html|DOCTYPE html/i", substr($content, 0, 100)) !== 0; | |
2202 | } | |
2203 | ||
2204 | function url_is_html($url, $login = false, $pass = false) { | |
2205 | return is_html(fetch_file_contents($url, false, $login, $pass)); | |
2206 | } | |
2207 | ||
2208 | function build_url($parts) { | |
2209 | return $parts['scheme'] . "://" . $parts['host'] . $parts['path']; | |
2210 | } | |
2211 | ||
2212 | function cleanup_url_path($path) { | |
2213 | $path = str_replace("/./", "/", $path); | |
2214 | $path = str_replace("//", "/", $path); | |
2215 | ||
2216 | return $path; | |
2217 | } | |
2218 | ||
2219 | /** | |
2220 | * Converts a (possibly) relative URL to a absolute one. | |
2221 | * | |
2222 | * @param string $url Base URL (i.e. from where the document is) | |
2223 | * @param string $rel_url Possibly relative URL in the document | |
2224 | * | |
2225 | * @return string Absolute URL | |
2226 | */ | |
2227 | function rewrite_relative_url($url, $rel_url) { | |
2228 | if (strpos($rel_url, "://") !== false) { | |
2229 | return $rel_url; | |
2230 | } else if (strpos($rel_url, "//") === 0) { | |
2231 | # protocol-relative URL (rare but they exist) | |
2232 | return $rel_url; | |
2233 | } else if (preg_match("/^[a-z]+:/i", $rel_url)) { | |
2234 | # magnet:, feed:, etc | |
2235 | return $rel_url; | |
2236 | } else if (strpos($rel_url, "/") === 0) { | |
2237 | $parts = parse_url($url); | |
2238 | $parts['path'] = $rel_url; | |
2239 | $parts['path'] = cleanup_url_path($parts['path']); | |
2240 | ||
2241 | return build_url($parts); | |
2242 | ||
2243 | } else { | |
2244 | $parts = parse_url($url); | |
2245 | if (!isset($parts['path'])) { | |
2246 | $parts['path'] = '/'; | |
2247 | } | |
2248 | $dir = $parts['path']; | |
2249 | if (substr($dir, -1) !== '/') { | |
2250 | $dir = dirname($parts['path']); | |
2251 | $dir !== '/' && $dir .= '/'; | |
2252 | } | |
2253 | $parts['path'] = $dir . $rel_url; | |
2254 | $parts['path'] = cleanup_url_path($parts['path']); | |
2255 | ||
2256 | return build_url($parts); | |
2257 | } | |
2258 | } | |
2259 | ||
2260 | function cleanup_tags($days = 14, $limit = 1000) { | |
2261 | ||
2262 | $days = (int) $days; | |
2263 | ||
2264 | if (DB_TYPE == "pgsql") { | |
2265 | $interval_query = "date_updated < NOW() - INTERVAL '$days days'"; | |
2266 | } else if (DB_TYPE == "mysql") { | |
2267 | $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)"; | |
2268 | } | |
2269 | ||
2270 | $tags_deleted = 0; | |
2271 | ||
2272 | $pdo = Db::pdo(); | |
2273 | ||
2274 | while ($limit > 0) { | |
2275 | $limit_part = 500; | |
2276 | ||
2277 | $sth = $pdo->prepare("SELECT ttrss_tags.id AS id | |
2278 | FROM ttrss_tags, ttrss_user_entries, ttrss_entries | |
2279 | WHERE post_int_id = int_id AND $interval_query AND | |
2280 | ref_id = ttrss_entries.id AND tag_cache != '' LIMIT ?"); | |
2281 | $sth->execute([$limit]); | |
2282 | ||
2283 | $ids = array(); | |
2284 | ||
2285 | while ($line = $sth->fetch()) { | |
2286 | array_push($ids, $line['id']); | |
2287 | } | |
2288 | ||
2289 | if (count($ids) > 0) { | |
2290 | $ids = join(",", $ids); | |
2291 | ||
2292 | $usth = $pdo->query("DELETE FROM ttrss_tags WHERE id IN ($ids)"); | |
2293 | $tags_deleted = $usth->rowCount(); | |
2294 | } else { | |
2295 | break; | |
2296 | } | |
2297 | ||
2298 | $limit -= $limit_part; | |
2299 | } | |
2300 | ||
2301 | return $tags_deleted; | |
2302 | } | |
2303 | ||
2304 | function print_user_stylesheet() { | |
2305 | $value = get_pref('USER_STYLESHEET'); | |
2306 | ||
2307 | if ($value) { | |
2308 | print "<style type=\"text/css\">"; | |
2309 | print str_replace("<br/>", "\n", $value); | |
2310 | print "</style>"; | |
2311 | } | |
2312 | ||
2313 | } | |
2314 | ||
2315 | function filter_to_sql($filter, $owner_uid) { | |
2316 | $query = array(); | |
2317 | ||
2318 | $pdo = Db::pdo(); | |
2319 | ||
2320 | if (DB_TYPE == "pgsql") | |
2321 | $reg_qpart = "~"; | |
2322 | else | |
2323 | $reg_qpart = "REGEXP"; | |
2324 | ||
2325 | foreach ($filter["rules"] AS $rule) { | |
2326 | $rule['reg_exp'] = str_replace('/', '\/', $rule["reg_exp"]); | |
2327 | $regexp_valid = preg_match('/' . $rule['reg_exp'] . '/', | |
2328 | $rule['reg_exp']) !== FALSE; | |
2329 | ||
2330 | if ($regexp_valid) { | |
2331 | ||
2332 | $rule['reg_exp'] = $pdo->quote($rule['reg_exp']); | |
2333 | ||
2334 | switch ($rule["type"]) { | |
2335 | case "title": | |
2336 | $qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('". | |
2337 | $rule['reg_exp'] . "')"; | |
2338 | break; | |
2339 | case "content": | |
2340 | $qpart = "LOWER(ttrss_entries.content) $reg_qpart LOWER('". | |
2341 | $rule['reg_exp'] . "')"; | |
2342 | break; | |
2343 | case "both": | |
2344 | $qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('". | |
2345 | $rule['reg_exp'] . "') OR LOWER(" . | |
2346 | "ttrss_entries.content) $reg_qpart LOWER('" . $rule['reg_exp'] . "')"; | |
2347 | break; | |
2348 | case "tag": | |
2349 | $qpart = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('". | |
2350 | $rule['reg_exp'] . "')"; | |
2351 | break; | |
2352 | case "link": | |
2353 | $qpart = "LOWER(ttrss_entries.link) $reg_qpart LOWER('". | |
2354 | $rule['reg_exp'] . "')"; | |
2355 | break; | |
2356 | case "author": | |
2357 | $qpart = "LOWER(ttrss_entries.author) $reg_qpart LOWER('". | |
2358 | $rule['reg_exp'] . "')"; | |
2359 | break; | |
2360 | } | |
2361 | ||
2362 | if (isset($rule['inverse'])) $qpart = "NOT ($qpart)"; | |
2363 | ||
2364 | if (isset($rule["feed_id"]) && $rule["feed_id"] > 0) { | |
2365 | $qpart .= " AND feed_id = " . $pdo->quote($rule["feed_id"]); | |
2366 | } | |
2367 | ||
2368 | if (isset($rule["cat_id"])) { | |
2369 | ||
2370 | if ($rule["cat_id"] > 0) { | |
2371 | $children = Feeds::getChildCategories($rule["cat_id"], $owner_uid); | |
2372 | array_push($children, $rule["cat_id"]); | |
2373 | $children = array_map("intval", $children); | |
2374 | ||
2375 | $children = join(",", $children); | |
2376 | ||
2377 | $cat_qpart = "cat_id IN ($children)"; | |
2378 | } else { | |
2379 | $cat_qpart = "cat_id IS NULL"; | |
2380 | } | |
2381 | ||
2382 | $qpart .= " AND $cat_qpart"; | |
2383 | } | |
2384 | ||
2385 | $qpart .= " AND feed_id IS NOT NULL"; | |
2386 | ||
2387 | array_push($query, "($qpart)"); | |
2388 | ||
2389 | } | |
2390 | } | |
2391 | ||
2392 | if (count($query) > 0) { | |
2393 | $fullquery = "(" . join($filter["match_any_rule"] ? "OR" : "AND", $query) . ")"; | |
2394 | } else { | |
2395 | $fullquery = "(false)"; | |
2396 | } | |
2397 | ||
2398 | if ($filter['inverse']) $fullquery = "(NOT $fullquery)"; | |
2399 | ||
2400 | return $fullquery; | |
2401 | } | |
2402 | ||
2403 | if (!function_exists('gzdecode')) { | |
2404 | function gzdecode($string) { // no support for 2nd argument | |
2405 | return file_get_contents('compress.zlib://data:who/cares;base64,'. | |
2406 | base64_encode($string)); | |
2407 | } | |
2408 | } | |
2409 | ||
2410 | function get_random_bytes($length) { | |
2411 | if (function_exists('openssl_random_pseudo_bytes')) { | |
2412 | return openssl_random_pseudo_bytes($length); | |
2413 | } else { | |
2414 | $output = ""; | |
2415 | ||
2416 | for ($i = 0; $i < $length; $i++) | |
2417 | $output .= chr(mt_rand(0, 255)); | |
2418 | ||
2419 | return $output; | |
2420 | } | |
2421 | } | |
2422 | ||
2423 | function read_stdin() { | |
2424 | $fp = fopen("php://stdin", "r"); | |
2425 | ||
2426 | if ($fp) { | |
2427 | $line = trim(fgets($fp)); | |
2428 | fclose($fp); | |
2429 | return $line; | |
2430 | } | |
2431 | ||
2432 | return null; | |
2433 | } | |
2434 | ||
2435 | function implements_interface($class, $interface) { | |
2436 | return in_array($interface, class_implements($class)); | |
2437 | } | |
2438 | ||
2439 | function get_minified_js($files) { | |
2440 | ||
2441 | $rv = ''; | |
2442 | ||
2443 | foreach ($files as $js) { | |
2444 | if (!isset($_GET['debug'])) { | |
2445 | $cached_file = CACHE_DIR . "/js/".basename($js); | |
2446 | ||
2447 | if (file_exists($cached_file) && is_readable($cached_file) && filemtime($cached_file) >= filemtime("js/$js")) { | |
2448 | ||
2449 | list($header, $contents) = explode("\n", file_get_contents($cached_file), 2); | |
2450 | ||
2451 | if ($header && $contents) { | |
2452 | list($htag, $hversion) = explode(":", $header); | |
2453 | ||
2454 | if ($htag == "tt-rss" && $hversion == VERSION) { | |
2455 | $rv .= $contents; | |
2456 | continue; | |
2457 | } | |
2458 | } | |
2459 | } | |
2460 | ||
2461 | $minified = JShrink\Minifier::minify(file_get_contents("js/$js")); | |
2462 | file_put_contents($cached_file, "tt-rss:" . VERSION . "\n" . $minified); | |
2463 | $rv .= $minified; | |
2464 | ||
2465 | } else { | |
2466 | $rv .= file_get_contents("js/$js"); // no cache in debug mode | |
2467 | } | |
2468 | } | |
2469 | ||
2470 | return $rv; | |
2471 | } | |
2472 | ||
2473 | function calculate_dep_timestamp() { | |
2474 | $files = array_merge(glob("js/*.js"), glob("css/*.css")); | |
2475 | ||
2476 | $max_ts = -1; | |
2477 | ||
2478 | foreach ($files as $file) { | |
2479 | if (filemtime($file) > $max_ts) $max_ts = filemtime($file); | |
2480 | } | |
2481 | ||
2482 | return $max_ts; | |
2483 | } | |
2484 | ||
2485 | function T_js_decl($s1, $s2) { | |
2486 | if ($s1 && $s2) { | |
2487 | $s1 = preg_replace("/\n/", "", $s1); | |
2488 | $s2 = preg_replace("/\n/", "", $s2); | |
2489 | ||
2490 | $s1 = preg_replace("/\"/", "\\\"", $s1); | |
2491 | $s2 = preg_replace("/\"/", "\\\"", $s2); | |
2492 | ||
2493 | return "T_messages[\"$s1\"] = \"$s2\";\n"; | |
2494 | } | |
2495 | } | |
2496 | ||
2497 | function init_js_translations() { | |
2498 | ||
2499 | print 'var T_messages = new Object(); | |
2500 | ||
2501 | function __(msg) { | |
2502 | if (T_messages[msg]) { | |
2503 | return T_messages[msg]; | |
2504 | } else { | |
2505 | return msg; | |
2506 | } | |
2507 | } | |
2508 | ||
2509 | function ngettext(msg1, msg2, n) { | |
2510 | return __((parseInt(n) > 1) ? msg2 : msg1); | |
2511 | }'; | |
2512 | ||
2513 | $l10n = _get_reader(); | |
2514 | ||
2515 | for ($i = 0; $i < $l10n->total; $i++) { | |
2516 | $orig = $l10n->get_original_string($i); | |
2517 | if(strpos($orig, "\000") !== FALSE) { // Plural forms | |
2518 | $key = explode(chr(0), $orig); | |
2519 | print T_js_decl($key[0], _ngettext($key[0], $key[1], 1)); // Singular | |
2520 | print T_js_decl($key[1], _ngettext($key[0], $key[1], 2)); // Plural | |
2521 | } else { | |
2522 | $translation = __($orig); | |
2523 | print T_js_decl($orig, $translation); | |
2524 | } | |
2525 | } | |
2526 | } | |
2527 | ||
2528 | function get_theme_path($theme) { | |
2529 | if ($theme == "default.php") | |
2530 | return "css/default.css"; | |
2531 | ||
2532 | $check = "themes/$theme"; | |
2533 | if (file_exists($check)) return $check; | |
2534 | ||
2535 | $check = "themes.local/$theme"; | |
2536 | if (file_exists($check)) return $check; | |
2537 | } | |
2538 | ||
2539 | function theme_valid($theme) { | |
2540 | $bundled_themes = [ "default.php", "night.css", "compact.css" ]; | |
2541 | ||
2542 | if (in_array($theme, $bundled_themes)) return true; | |
2543 | ||
2544 | $file = "themes/" . basename($theme); | |
2545 | ||
2546 | if (!file_exists($file)) $file = "themes.local/" . basename($theme); | |
2547 | ||
2548 | if (file_exists($file) && is_readable($file)) { | |
2549 | $fh = fopen($file, "r"); | |
2550 | ||
2551 | if ($fh) { | |
2552 | $header = fgets($fh); | |
2553 | fclose($fh); | |
2554 | ||
2555 | return strpos($header, "supports-version:" . VERSION_STATIC) !== FALSE; | |
2556 | } | |
2557 | } | |
2558 | ||
2559 | return false; | |
2560 | } | |
2561 | ||
2562 | /** | |
2563 | * @SuppressWarnings(unused) | |
2564 | */ | |
2565 | function error_json($code) { | |
2566 | require_once "errors.php"; | |
2567 | ||
2568 | @$message = $ERRORS[$code]; | |
2569 | ||
2570 | return json_encode(array("error" => | |
2571 | array("code" => $code, "message" => $message))); | |
2572 | ||
2573 | } | |
2574 | ||
2575 | /*function abs_to_rel_path($dir) { | |
2576 | $tmp = str_replace(dirname(__DIR__), "", $dir); | |
2577 | ||
2578 | if (strlen($tmp) > 0 && substr($tmp, 0, 1) == "/") $tmp = substr($tmp, 1); | |
2579 | ||
2580 | return $tmp; | |
2581 | }*/ | |
2582 | ||
2583 | function get_upload_error_message($code) { | |
2584 | ||
2585 | $errors = array( | |
2586 | 0 => __('There is no error, the file uploaded with success'), | |
2587 | 1 => __('The uploaded file exceeds the upload_max_filesize directive in php.ini'), | |
2588 | 2 => __('The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form'), | |
2589 | 3 => __('The uploaded file was only partially uploaded'), | |
2590 | 4 => __('No file was uploaded'), | |
2591 | 6 => __('Missing a temporary folder'), | |
2592 | 7 => __('Failed to write file to disk.'), | |
2593 | 8 => __('A PHP extension stopped the file upload.'), | |
2594 | ); | |
2595 | ||
2596 | return $errors[$code]; | |
2597 | } | |
2598 | ||
2599 | function base64_img($filename) { | |
2600 | if (file_exists($filename)) { | |
2601 | $ext = pathinfo($filename, PATHINFO_EXTENSION); | |
2602 | ||
2603 | return "data:image/$ext;base64," . base64_encode(file_get_contents($filename)); | |
2604 | } else { | |
2605 | return ""; | |
2606 | } | |
2607 | } | |
2608 | ||
2609 | /* this is essentially a wrapper for readfile() which allows plugins to hook | |
2610 | output with httpd-specific "fast" implementation i.e. X-Sendfile or whatever else | |
2611 | ||
2612 | hook function should return true if request was handled (or at least attempted to) | |
2613 | ||
2614 | note that this can be called without user context so the plugin to handle this | |
2615 | should be loaded systemwide in config.php */ | |
2616 | function send_local_file($filename) { | |
2617 | if (file_exists($filename)) { | |
2618 | ||
2619 | if (is_writable($filename)) touch($filename); | |
2620 | ||
2621 | $tmppluginhost = new PluginHost(); | |
2622 | ||
2623 | $tmppluginhost->load(PLUGINS, PluginHost::KIND_SYSTEM); | |
2624 | $tmppluginhost->load_data(); | |
2625 | ||
2626 | foreach ($tmppluginhost->get_hooks(PluginHost::HOOK_SEND_LOCAL_FILE) as $plugin) { | |
2627 | if ($plugin->hook_send_local_file($filename)) return true; | |
2628 | } | |
2629 | ||
2630 | $mimetype = mime_content_type($filename); | |
2631 | ||
2632 | // this is hardly ideal but 1) only media is cached in images/ and 2) seemingly only mp4 | |
2633 | // video files are detected as octet-stream by mime_content_type() | |
2634 | ||
2635 | if ($mimetype == "application/octet-stream") | |
2636 | $mimetype = "video/mp4"; | |
2637 | ||
2638 | header("Content-type: $mimetype"); | |
2639 | ||
2640 | $stamp = gmdate("D, d M Y H:i:s", filemtime($filename)) . " GMT"; | |
2641 | header("Last-Modified: $stamp", true); | |
2642 | ||
2643 | return readfile($filename); | |
2644 | } else { | |
2645 | return false; | |
2646 | } | |
2647 | } | |
2648 | ||
2649 | function check_mysql_tables() { | |
2650 | $pdo = Db::pdo(); | |
2651 | ||
2652 | $sth = $pdo->prepare("SELECT engine, table_name FROM information_schema.tables WHERE | |
2653 | table_schema = ? AND table_name LIKE 'ttrss_%' AND engine != 'InnoDB'"); | |
2654 | $sth->execute([DB_NAME]); | |
2655 | ||
2656 | $bad_tables = []; | |
2657 | ||
2658 | while ($line = $sth->fetch()) { | |
2659 | array_push($bad_tables, $line); | |
2660 | } | |
2661 | ||
2662 | return $bad_tables; | |
2663 | } | |
2664 | ||
2665 | function validate_field($string, $allowed, $default = "") { | |
2666 | if (in_array($string, $allowed)) | |
2667 | return $string; | |
2668 | else | |
2669 | return $default; | |
2670 | } | |
2671 | ||
2672 | function arr_qmarks($arr) { | |
2673 | return str_repeat('?,', count($arr) - 1) . '?'; | |
2674 | } |