include/functions.php

   1 <?php
   2         define('EXPECTED_CONFIG_VERSION', 26);
   3         define('SCHEMA_VERSION', 127);
   4
   5         define('LABEL_BASE_INDEX', -1024);
   6         define('PLUGIN_FEED_BASE_INDEX', -128);
   7
   8         define('COOKIE_LIFETIME_LONG', 86400*365);
   9
  10         $fetch_last_error = false;
  11         $fetch_last_error_code = false;
  12         $fetch_last_content_type = false;
  13         $fetch_last_error_content = false; // curl only for the time being
  14         $fetch_curl_used = false;
  15         $suppress_debugging = false;
  16
  17         libxml_disable_entity_loader(true);
  18
  19         mb_internal_encoding("UTF-8");
  20         date_default_timezone_set('UTC');
  21         if (defined('E_DEPRECATED')) {
  22                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
  23         } else {
  24                 error_reporting(E_ALL & ~E_NOTICE);
  25         }
  26
  27         require_once 'config.php';
  28
  29         /**
  30          * Define a constant if not already defined
  31          *
  32          * @param string $name The constant name.
  33          * @param mixed $value The constant value.
  34          * @access public
  35          * @return boolean True if defined successfully or not.
  36          */
  37         function define_default($name, $value) {
  38                 defined($name) or define($name, $value);
  39         }
  40
  41         ///// Some defaults that you can override in config.php //////
  42
  43         define_default('FEED_FETCH_TIMEOUT', 45);
  44         // How may seconds to wait for response when requesting feed from a site
  45         define_default('FEED_FETCH_NO_CACHE_TIMEOUT', 15);
  46         // How may seconds to wait for response when requesting feed from a
  47         // site when that feed wasn't cached before
  48         define_default('FILE_FETCH_TIMEOUT', 45);
  49         // Default timeout when fetching files from remote sites
  50         define_default('FILE_FETCH_CONNECT_TIMEOUT', 15);
  51         // How many seconds to wait for initial response from website when
  52         // fetching files from remote sites
  53
  54         if (DB_TYPE == "pgsql") {
  55                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  56         } else {
  57                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  58         }
  59
  60         /**
  61          * Return available translations names.
  62          *
  63          * @access public
  64          * @return array A array of available translations.
  65          */
  66         function get_translations() {
  67                 $tr = array(
  68                                         "auto"  => "Detect automatically",
  69                                         "ar_SA" => "العربيّة (Arabic)",
  70                                         "bg_BG" => "Bulgarian",
  71                                         "da_DA" => "Dansk",
  72                                         "ca_CA" => "Català",
  73                                         "cs_CZ" => "Česky",
  74                                         "en_US" => "English",
  75                                         "el_GR" => "Ελληνικά",
  76                                         "es_ES" => "Español (España)",
  77                                         "es_LA" => "Español",
  78                                         "de_DE" => "Deutsch",
  79                                         "fr_FR" => "Français",
  80                                         "hu_HU" => "Magyar (Hungarian)",
  81                                         "it_IT" => "Italiano",
  82                                         "ja_JP" => "日本語 (Japanese)",
  83                                         "lv_LV" => "Latviešu",
  84                                         "nb_NO" => "Norwegian bokmål",
  85                                         "nl_NL" => "Dutch",
  86                                         "pl_PL" => "Polski",
  87                                         "ru_RU" => "Русский",
  88                                         "pt_BR" => "Portuguese/Brazil",
  89                                         "pt_PT" => "Portuguese/Portugal",
  90                                         "zh_CN" => "Simplified Chinese",
  91                                         "zh_TW" => "Traditional Chinese",
  92                                         "sv_SE" => "Svenska",
  93                                         "fi_FI" => "Suomi",
  94                                         "tr_TR" => "Türkçe");
  95
  96                 return $tr;
  97         }
  98
  99         require_once "lib/accept-to-gettext.php";
 100         require_once "lib/gettext/gettext.inc";
 101
 102         function startup_gettext() {
 103
 104                 # Get locale from Accept-Language header
 105                 $lang = al2gt(array_keys(get_translations()), "text/html");
 106
 107                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
 108                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
 109                 }
 110
 111                 if ($_SESSION["uid"] && get_schema_version() >= 120) {
 112                         $pref_lang = get_pref("USER_LANGUAGE", $_SESSION["uid"]);
 113
 114                         if ($pref_lang && $pref_lang != 'auto') {
 115                                 $lang = $pref_lang;
 116                         }
 117                 }
 118
 119                 if ($lang) {
 120                         if (defined('LC_MESSAGES')) {
 121                                 _setlocale(LC_MESSAGES, $lang);
 122                         } else if (defined('LC_ALL')) {
 123                                 _setlocale(LC_ALL, $lang);
 124                         }
 125
 126                         _bindtextdomain("messages", "locale");
 127
 128                         _textdomain("messages");
 129                         _bind_textdomain_codeset("messages", "UTF-8");
 130                 }
 131         }
 132
 133         require_once 'db-prefs.php';
 134         require_once 'version.php';
 135         require_once 'ccache.php';
 136         require_once 'labels.php';
 137
 138         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 139         ini_set('user_agent', SELF_USER_AGENT);
 140
 141         require_once 'lib/pubsubhubbub/publisher.php';
 142
 143         $schema_version = false;
 144
 145         function _debug_suppress($suppress) {
 146                 global $suppress_debugging;
 147
 148                 $suppress_debugging = $suppress;
 149         }
 150
 151         /**
 152          * Print a timestamped debug message.
 153          *
 154          * @param string $msg The debug message.
 155          * @return void
 156          */
 157         function _debug($msg, $show = true) {
 158                 global $suppress_debugging;
 159
 160                 //echo "[$suppress_debugging] $msg $show\n";
 161
 162                 if ($suppress_debugging) return false;
 163
 164                 $ts = strftime("%H:%M:%S", time());
 165                 if (function_exists('posix_getpid')) {
 166                         $ts = "$ts/" . posix_getpid();
 167                 }
 168
 169                 if ($show && !(defined('QUIET') && QUIET)) {
 170                         print "[$ts] $msg\n";
 171                 }
 172
 173                 if (defined('LOGFILE'))  {
 174                         $fp = fopen(LOGFILE, 'a+');
 175
 176                         if ($fp) {
 177                                 $locked = false;
 178
 179                                 if (function_exists("flock")) {
 180                                         $tries = 0;
 181
 182                                         // try to lock logfile for writing
 183                                         while ($tries < 5 && !$locked = flock($fp, LOCK_EX | LOCK_NB)) {
 184                                                 sleep(1);
 185                                                 ++$tries;
 186                                         }
 187
 188                                         if (!$locked) {
 189                                                 fclose($fp);
 190                                                 return;
 191                                         }
 192                                 }
 193
 194                                 fputs($fp, "[$ts] $msg\n");
 195
 196                                 if (function_exists("flock")) {
 197                                         flock($fp, LOCK_UN);
 198                                 }
 199
 200                                 fclose($fp);
 201                         }
 202                 }
 203
 204         } // function _debug
 205
 206         /**
 207          * Purge a feed old posts.
 208          *
 209          * @param mixed $link A database connection.
 210          * @param mixed $feed_id The id of the purged feed.
 211          * @param mixed $purge_interval Olderness of purged posts.
 212          * @param boolean $debug Set to True to enable the debug. False by default.
 213          * @access public
 214          * @return void
 215          */
 216         function purge_feed($feed_id, $purge_interval, $debug = false) {
 217
 218                 if (!$purge_interval) $purge_interval = feed_purge_interval($feed_id);
 219
 220                 $rows = -1;
 221
 222                 $result = db_query(
 223                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 224
 225                 $owner_uid = false;
 226
 227                 if (db_num_rows($result) == 1) {
 228                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 229                 }
 230
 231                 if ($purge_interval == -1 || !$purge_interval) {
 232                         if ($owner_uid) {
 233                                 ccache_update($feed_id, $owner_uid);
 234                         }
 235                         return;
 236                 }
 237
 238                 if (!$owner_uid) return;
 239
 240                 if (FORCE_ARTICLE_PURGE == 0) {
 241                         $purge_unread = get_pref("PURGE_UNREAD_ARTICLES",
 242                                 $owner_uid, false);
 243                 } else {
 244                         $purge_unread = true;
 245                         $purge_interval = FORCE_ARTICLE_PURGE;
 246                 }
 247
 248                 if (!$purge_unread) $query_limit = " unread = false AND ";
 249
 250                 if (DB_TYPE == "pgsql") {
 251                         $pg_version = get_pgsql_version();
 252
 253                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 254
 255                                 $result = db_query("DELETE FROM ttrss_user_entries WHERE
 256                                         ttrss_entries.id = ref_id AND
 257                                         marked = false AND
 258                                         feed_id = '$feed_id' AND
 259                                         $query_limit
 260                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 261
 262                         } else {
 263
 264                                 $result = db_query("DELETE FROM ttrss_user_entries
 265                                         USING ttrss_entries
 266                                         WHERE ttrss_entries.id = ref_id AND
 267                                         marked = false AND
 268                                         feed_id = '$feed_id' AND
 269                                         $query_limit
 270                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 271                         }
 272
 273                 } else {
 274
 275 /*                      $result = db_query("DELETE FROM ttrss_user_entries WHERE
 276                                 marked = false AND feed_id = '$feed_id' AND
 277                                 (SELECT date_updated FROM ttrss_entries WHERE
 278                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 279
 280                         $result = db_query("DELETE FROM ttrss_user_entries
 281                                 USING ttrss_user_entries, ttrss_entries
 282                                 WHERE ttrss_entries.id = ref_id AND
 283                                 marked = false AND
 284                                 feed_id = '$feed_id' AND
 285                                 $query_limit
 286                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 287                 }
 288
 289                 $rows = db_affected_rows($result);
 290
 291                 ccache_update($feed_id, $owner_uid);
 292
 293                 if ($debug) {
 294                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 295                 }
 296
 297                 return $rows;
 298         } // function purge_feed
 299
 300         function feed_purge_interval($feed_id) {
 301
 302                 $result = db_query("SELECT purge_interval, owner_uid FROM ttrss_feeds
 303                         WHERE id = '$feed_id'");
 304
 305                 if (db_num_rows($result) == 1) {
 306                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 307                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 308
 309                         if ($purge_interval == 0) $purge_interval = get_pref(
 310                                 'PURGE_OLD_DAYS', $owner_uid);
 311
 312                         return $purge_interval;
 313
 314                 } else {
 315                         return -1;
 316                 }
 317         }
 318
 319         function purge_orphans($do_output = false) {
 320
 321                 // purge orphaned posts in main content table
 322                 $result = db_query("DELETE FROM ttrss_entries WHERE
 323                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 324
 325                 if ($do_output) {
 326                         $rows = db_affected_rows($result);
 327                         _debug("Purged $rows orphaned posts.");
 328                 }
 329         }
 330
 331         function get_feed_update_interval($feed_id) {
 332                 $result = db_query("SELECT owner_uid, update_interval FROM
 333                         ttrss_feeds WHERE id = '$feed_id'");
 334
 335                 if (db_num_rows($result) == 1) {
 336                         $update_interval = db_fetch_result($result, 0, "update_interval");
 337                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 338
 339                         if ($update_interval != 0) {
 340                                 return $update_interval;
 341                         } else {
 342                                 return get_pref('DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 343                         }
 344
 345                 } else {
 346                         return -1;
 347                 }
 348         }
 349
 350         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false, $timeout = false, $timestamp = 0, $useragent = false) {
 351
 352                 global $fetch_last_error;
 353                 global $fetch_last_error_code;
 354                 global $fetch_last_error_content;
 355                 global $fetch_last_content_type;
 356                 global $fetch_curl_used;
 357
 358                 $url = ltrim($url, ' ');
 359                 $url = str_replace(' ', '%20', $url);
 360
 361                 if (strpos($url, "//") === 0)
 362                         $url = 'http:' . $url;
 363
 364                 if (!defined('NO_CURL') && function_exists('curl_init')) {
 365
 366                         $fetch_curl_used = true;
 367
 368                         if (ini_get("safe_mode") || ini_get("open_basedir") || defined("FORCE_GETURL")) {
 369                                 $new_url = geturl($url);
 370                                 if (!$new_url) {
 371                                     // geturl has already populated $fetch_last_error
 372                                     return false;
 373                                 }
 374                                 $ch = curl_init($new_url);
 375                         } else {
 376                                 $ch = curl_init($url);
 377                         }
 378
 379                         if ($timestamp && !$post_query) {
 380                                 curl_setopt($ch, CURLOPT_HTTPHEADER,
 381                                         array("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $timestamp)));
 382                         }
 383
 384                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
 385                         curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
 386                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("safe_mode") && !ini_get("open_basedir"));
 387                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 388                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 389                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 390                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 391                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 392                         curl_setopt($ch, CURLOPT_USERAGENT, $useragent ? $useragent :
 393                                 SELF_USER_AGENT);
 394                         curl_setopt($ch, CURLOPT_ENCODING, "");
 395                         //curl_setopt($ch, CURLOPT_REFERER, $url);
 396
 397                         if (!ini_get("safe_mode") && !ini_get("open_basedir")) {
 398                                 curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null");
 399                         }
 400
 401                         if (defined('_CURL_HTTP_PROXY')) {
 402                                 curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);
 403                         }
 404
 405                         if ($post_query) {
 406                                 curl_setopt($ch, CURLOPT_POST, true);
 407                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 408                         }
 409
 410                         if ($login && $pass)
 411                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 412
 413                         $contents = @curl_exec($ch);
 414
 415                         if (curl_errno($ch) === 23 || curl_errno($ch) === 61) {
 416                                 curl_setopt($ch, CURLOPT_ENCODING, 'none');
 417                                 $contents = @curl_exec($ch);
 418                         }
 419
 420                         if ($contents === false) {
 421                                 $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
 422                                 curl_close($ch);
 423                                 return false;
 424                         }
 425
 426                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 427                         $fetch_last_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 428
 429                         $fetch_last_error_code = $http_code;
 430
 431                         if ($http_code != 200 || $type && strpos($fetch_last_content_type, "$type") === false) {
 432                                 if (curl_errno($ch) != 0) {
 433                                         $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
 434                                 } else {
 435                                         $fetch_last_error = "HTTP Code: $http_code";
 436                                 }
 437                                 $fetch_last_error_content = $contents;
 438                                 curl_close($ch);
 439                                 return false;
 440                         }
 441
 442                         curl_close($ch);
 443
 444                         return $contents;
 445                 } else {
 446
 447                         $fetch_curl_used = false;
 448
 449                         if ($login && $pass){
 450                                 $url_parts = array();
 451
 452                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 453
 454                                 $pass = urlencode($pass);
 455
 456                                 if ($url_parts[1] && $url_parts[2]) {
 457                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 458                                 }
 459                         }
 460
 461                         if (!$post_query && $timestamp) {
 462                                 $context = stream_context_create(array(
 463                                         'http' => array(
 464                                                 'method' => 'GET',
 465                                                 'header' => "If-Modified-Since: ".gmdate("D, d M Y H:i:s \\G\\M\\T\r\n", $timestamp)
 466                                         )));
 467                         } else {
 468                                 $context = NULL;
 469                         }
 470
 471                         $old_error = error_get_last();
 472
 473                         $data = @file_get_contents($url, false, $context);
 474
 475                         $fetch_last_content_type = false;  // reset if no type was sent from server
 476                         if (isset($http_response_header) && is_array($http_response_header)) {
 477                                 foreach ($http_response_header as $h) {
 478                                         if (substr(strtolower($h), 0, 13) == 'content-type:') {
 479                                                 $fetch_last_content_type = substr($h, 14);
 480                                                 // don't abort here b/c there might be more than one
 481                                                 // e.g. if we were being redirected -- last one is the right one
 482                                         }
 483
 484                                         if (substr(strtolower($h), 0, 7) == 'http/1.') {
 485                                                 $fetch_last_error_code = (int) substr($h, 9, 3);
 486                                         }
 487                                 }
 488                         }
 489
 490                         if (!$data) {
 491                                 $error = error_get_last();
 492
 493                                 if ($error['message'] != $old_error['message']) {
 494                                         $fetch_last_error = $error["message"];
 495                                 } else {
 496                                         $fetch_last_error = "HTTP Code: $fetch_last_error_code";
 497                                 }
 498                         }
 499                         return $data;
 500                 }
 501
 502         }
 503
 504         /**
 505          * Try to determine the favicon URL for a feed.
 506          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 507          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 508          *
 509          * @param string $url A feed or page URL
 510          * @access public
 511          * @return mixed The favicon URL, or false if none was found.
 512          */
 513         function get_favicon_url($url) {
 514
 515                 $favicon_url = false;
 516
 517                 if ($html = @fetch_file_contents($url)) {
 518
 519                         libxml_use_internal_errors(true);
 520
 521                         $doc = new DOMDocument();
 522                         $doc->loadHTML($html);
 523                         $xpath = new DOMXPath($doc);
 524
 525                         $base = $xpath->query('/html/head/base');
 526                         foreach ($base as $b) {
 527                                 $url = $b->getAttribute("href");
 528                                 break;
 529                         }
 530
 531                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 532                         if (count($entries) > 0) {
 533                                 foreach ($entries as $entry) {
 534                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 535                                         break;
 536                                 }
 537                         }
 538                 }
 539
 540                 if (!$favicon_url)
 541                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 542
 543                 return $favicon_url;
 544         } // function get_favicon_url
 545
 546         function check_feed_favicon($site_url, $feed) {
 547 #               print "FAVICON [$site_url]: $favicon_url\n";
 548
 549                 $icon_file = ICONS_DIR . "/$feed.ico";
 550
 551                 if (!file_exists($icon_file)) {
 552                         $favicon_url = get_favicon_url($site_url);
 553
 554                         if ($favicon_url) {
 555                                 // Limiting to "image" type misses those served with text/plain
 556                                 $contents = fetch_file_contents($favicon_url); // , "image");
 557
 558                                 if ($contents) {
 559                                         // Crude image type matching.
 560                                         // Patterns gleaned from the file(1) source code.
 561                                         if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
 562                                                 // 0       string  \000\000\001\000        MS Windows icon resource
 563                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
 564                                         }
 565                                         elseif (preg_match('/^GIF8/', $contents)) {
 566                                                 // 0       string          GIF8            GIF image data
 567                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
 568                                         }
 569                                         elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
 570                                                 // 0       string          \x89PNG\x0d\x0a\x1a\x0a         PNG image data
 571                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
 572                                         }
 573                                         elseif (preg_match('/^\xff\xd8/', $contents)) {
 574                                                 // 0       beshort         0xffd8          JPEG image data
 575                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
 576                                         }
 577                                         else {
 578                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
 579                                                 $contents = "";
 580                                         }
 581                                 }
 582
 583                                 if ($contents) {
 584                                         $fp = @fopen($icon_file, "w");
 585
 586                                         if ($fp) {
 587                                                 fwrite($fp, $contents);
 588                                                 fclose($fp);
 589                                                 chmod($icon_file, 0644);
 590                                         }
 591                                 }
 592                         }
 593             return $icon_file;
 594                 }
 595         }
 596
 597         function print_select($id, $default, $values, $attributes = "") {
 598                 print "<select name=\"$id\" id=\"$id\" $attributes>";
 599                 foreach ($values as $v) {
 600                         if ($v == $default)
 601                                 $sel = "selected=\"1\"";
 602                          else
 603                                 $sel = "";
 604
 605                         $v = trim($v);
 606
 607                         print "<option value=\"$v\" $sel>$v</option>";
 608                 }
 609                 print "</select>";
 610         }
 611
 612         function print_select_hash($id, $default, $values, $attributes = "") {
 613                 print "<select name=\"$id\" id='$id' $attributes>";
 614                 foreach (array_keys($values) as $v) {
 615                         if ($v == $default)
 616                                 $sel = 'selected="selected"';
 617                          else
 618                                 $sel = "";
 619
 620                         $v = trim($v);
 621
 622                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
 623                 }
 624
 625                 print "</select>";
 626         }
 627
 628         function print_radio($id, $default, $true_is, $values, $attributes = "") {
 629                 foreach ($values as $v) {
 630
 631                         if ($v == $default)
 632                                 $sel = "checked";
 633                          else
 634                                 $sel = "";
 635
 636                         if ($v == $true_is) {
 637                                 $sel .= " value=\"1\"";
 638                         } else {
 639                                 $sel .= " value=\"0\"";
 640                         }
 641
 642                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
 643                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 644
 645                 }
 646         }
 647
 648         function initialize_user_prefs($uid, $profile = false) {
 649
 650                 $uid = db_escape_string($uid);
 651
 652                 if (!$profile) {
 653                         $profile = "NULL";
 654                         $profile_qpart = "AND profile IS NULL";
 655                 } else {
 656                         $profile_qpart = "AND profile = '$profile'";
 657                 }
 658
 659                 if (get_schema_version() < 63) $profile_qpart = "";
 660
 661                 db_query("BEGIN");
 662
 663                 $result = db_query("SELECT pref_name,def_value FROM ttrss_prefs");
 664
 665                 $u_result = db_query("SELECT pref_name
 666                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
 667
 668                 $active_prefs = array();
 669
 670                 while ($line = db_fetch_assoc($u_result)) {
 671                         array_push($active_prefs, $line["pref_name"]);
 672                 }
 673
 674                 while ($line = db_fetch_assoc($result)) {
 675                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 676 //                              print "adding " . $line["pref_name"] . "<br>";
 677
 678                                 $line["def_value"] = db_escape_string($line["def_value"]);
 679                                 $line["pref_name"] = db_escape_string($line["pref_name"]);
 680
 681                                 if (get_schema_version() < 63) {
 682                                         db_query("INSERT INTO ttrss_user_prefs
 683                                                 (owner_uid,pref_name,value) VALUES
 684                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 685
 686                                 } else {
 687                                         db_query("INSERT INTO ttrss_user_prefs
 688                                                 (owner_uid,pref_name,value, profile) VALUES
 689                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
 690                                 }
 691
 692                         }
 693                 }
 694
 695                 db_query("COMMIT");
 696
 697         }
 698
 699         function get_ssl_certificate_id() {
 700                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
 701                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
 702                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
 703                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
 704                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
 705                 }
 706                 if ($_SERVER["SSL_CLIENT_M_SERIAL"]) {
 707                         return sha1($_SERVER["SSL_CLIENT_M_SERIAL"] .
 708                                 $_SERVER["SSL_CLIENT_V_START"] .
 709                                 $_SERVER["SSL_CLIENT_V_END"] .
 710                                 $_SERVER["SSL_CLIENT_S_DN"]);
 711                 }
 712                 return "";
 713         }
 714
 715         function authenticate_user($login, $password, $check_only = false) {
 716
 717                 if (!SINGLE_USER_MODE) {
 718                         $user_id = false;
 719
 720                         foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) {
 721
 722                                 $user_id = (int) $plugin->authenticate($login, $password);
 723
 724                                 if ($user_id) {
 725                                         $_SESSION["auth_module"] = strtolower(get_class($plugin));
 726                                         break;
 727                                 }
 728                         }
 729
 730                         if ($user_id && !$check_only) {
 731                                 @session_start();
 732
 733                                 $_SESSION["uid"] = $user_id;
 734                                 $_SESSION["version"] = VERSION_STATIC;
 735
 736                                 $result = db_query("SELECT login,access_level,pwd_hash FROM ttrss_users
 737                                         WHERE id = '$user_id'");
 738
 739                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
 740                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 741                                 $_SESSION["csrf_token"] = uniqid(rand(), true);
 742
 743                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 744                                         $_SESSION["uid"]);
 745
 746                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 747                                 $_SESSION["user_agent"] = sha1($_SERVER['HTTP_USER_AGENT']);
 748                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
 749
 750                                 $_SESSION["last_version_check"] = time();
 751
 752                                 initialize_user_prefs($_SESSION["uid"]);
 753
 754                                 return true;
 755                         }
 756
 757                         return false;
 758
 759                 } else {
 760
 761                         $_SESSION["uid"] = 1;
 762                         $_SESSION["name"] = "admin";
 763                         $_SESSION["access_level"] = 10;
 764
 765                         $_SESSION["hide_hello"] = true;
 766                         $_SESSION["hide_logout"] = true;
 767
 768                         $_SESSION["auth_module"] = false;
 769
 770                         if (!$_SESSION["csrf_token"]) {
 771                                 $_SESSION["csrf_token"] = uniqid(rand(), true);
 772                         }
 773
 774                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 775
 776                         initialize_user_prefs($_SESSION["uid"]);
 777
 778                         return true;
 779                 }
 780         }
 781
 782         function make_password($length = 8) {
 783
 784                 $password = "";
 785                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
 786
 787         $i = 0;
 788
 789                 while ($i < $length) {
 790                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 791
 792                         if (!strstr($password, $char)) {
 793                                 $password .= $char;
 794                                 $i++;
 795                         }
 796                 }
 797                 return $password;
 798         }
 799
 800         // this is called after user is created to initialize default feeds, labels
 801         // or whatever else
 802
 803         // user preferences are checked on every login, not here
 804
 805         function initialize_user($uid) {
 806
 807                 db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
 808                         values ('$uid', 'Tiny Tiny RSS: Forum',
 809                                 'http://tt-rss.org/forum/rss.php')");
 810         }
 811
 812         function logout_user() {
 813                 session_destroy();
 814                 if (isset($_COOKIE[session_name()])) {
 815                    setcookie(session_name(), '', time()-42000, '/');
 816                 }
 817         }
 818
 819         function validate_csrf($csrf_token) {
 820                 return $csrf_token == $_SESSION['csrf_token'];
 821         }
 822
 823         function load_user_plugins($owner_uid) {
 824                 if ($owner_uid && SCHEMA_VERSION >= 100) {
 825                         $plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
 826
 827                         PluginHost::getInstance()->load($plugins, PluginHost::KIND_USER, $owner_uid);
 828
 829                         if (get_schema_version() > 100) {
 830                                 PluginHost::getInstance()->load_data();
 831                         }
 832                 }
 833         }
 834
 835         function login_sequence() {
 836                 if (SINGLE_USER_MODE) {
 837                         @session_start();
 838                         authenticate_user("admin", null);
 839                         startup_gettext();
 840                         load_user_plugins($_SESSION["uid"]);
 841                 } else {
 842                         if (!validate_session()) $_SESSION["uid"] = false;
 843
 844                         if (!$_SESSION["uid"]) {
 845
 846                                 if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) {
 847                                     $_SESSION["ref_schema_version"] = get_schema_version(true);
 848                                 } else {
 849                                          authenticate_user(null, null, true);
 850                                 }
 851
 852                                 if (!$_SESSION["uid"]) {
 853                                         @session_destroy();
 854                                         setcookie(session_name(), '', time()-42000, '/');
 855
 856                                         render_login_form();
 857                                         exit;
 858                                 }
 859
 860                         } else {
 861                                 /* bump login timestamp */
 862                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 863                                         $_SESSION["uid"]);
 864                                 $_SESSION["last_login_update"] = time();
 865                         }
 866
 867                         if ($_SESSION["uid"]) {
 868                                 startup_gettext();
 869                                 load_user_plugins($_SESSION["uid"]);
 870
 871                                 /* cleanup ccache */
 872
 873                                 db_query("DELETE FROM ttrss_counters_cache WHERE owner_uid = ".
 874                                         $_SESSION["uid"] . " AND
 875                                                 (SELECT COUNT(id) FROM ttrss_feeds WHERE
 876                                                         ttrss_feeds.id = feed_id) = 0");
 877
 878                                 db_query("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ".
 879                                         $_SESSION["uid"] . " AND
 880                                                 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
 881                                                         ttrss_feed_categories.id = feed_id) = 0");
 882
 883                         }
 884
 885                 }
 886         }
 887
 888         function truncate_string($str, $max_len, $suffix = '&hellip;') {
 889                 if (mb_strlen($str, "utf-8") > $max_len) {
 890                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
 891                 } else {
 892                         return $str;
 893                 }
 894         }
 895
 896         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
 897
 898                 try {
 899                         $source_tz = new DateTimeZone($source_tz);
 900                 } catch (Exception $e) {
 901                         $source_tz = new DateTimeZone('UTC');
 902                 }
 903
 904                 try {
 905                         $dest_tz = new DateTimeZone($dest_tz);
 906                 } catch (Exception $e) {
 907                         $dest_tz = new DateTimeZone('UTC');
 908                 }
 909
 910                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
 911                 return $dt->format('U') + $dest_tz->getOffset($dt);
 912         }
 913
 914         function make_local_datetime($timestamp, $long, $owner_uid = false,
 915                                         $no_smart_dt = false, $eta_min = false) {
 916
 917                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 918                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
 919
 920                 global $utc_tz;
 921                 global $user_tz;
 922
 923                 if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
 924
 925                 $timestamp = substr($timestamp, 0, 19);
 926
 927                 # We store date in UTC internally
 928                 $dt = new DateTime($timestamp, $utc_tz);
 929
 930                 $user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
 931
 932                 if ($user_tz_string != 'Automatic') {
 933
 934                         try {
 935                                 if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
 936                         } catch (Exception $e) {
 937                                 $user_tz = $utc_tz;
 938                         }
 939
 940                         $tz_offset = $user_tz->getOffset($dt);
 941                 } else {
 942                         $tz_offset = (int) -$_SESSION["clientTzOffset"];
 943                 }
 944
 945                 $user_timestamp = $dt->format('U') + $tz_offset;
 946
 947                 if (!$no_smart_dt) {
 948                         return smart_date_time($user_timestamp,
 949                                 $tz_offset, $owner_uid, $eta_min);
 950                 } else {
 951                         if ($long)
 952                                 $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
 953                         else
 954                                 $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
 955
 956                         return date($format, $user_timestamp);
 957                 }
 958         }
 959
 960         function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false, $eta_min = false) {
 961                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 962
 963                 if ($eta_min && date("Y.m.d.G", $timestamp) == date("Y.m.d.G", time() + $tz_offset)) {
 964                         return T_sprintf("%d min", date("i", time() + $tz_offset - $timestamp));
 965                 } else if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
 966                         return date("G:i", $timestamp);
 967                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
 968                         $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
 969                         return date($format, $timestamp);
 970                 } else {
 971                         $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
 972                         return date($format, $timestamp);
 973                 }
 974         }
 975
 976         function sql_bool_to_bool($s) {
 977                 if ($s == "t" || $s == "1" || strtolower($s) == "true") {
 978                         return true;
 979                 } else {
 980                         return false;
 981                 }
 982         }
 983
 984         function bool_to_sql_bool($s) {
 985                 if ($s) {
 986                         return "true";
 987                 } else {
 988                         return "false";
 989                 }
 990         }
 991
 992         // Session caching removed due to causing wrong redirects to upgrade
 993         // script when get_schema_version() is called on an obsolete session
 994         // created on a previous schema version.
 995         function get_schema_version($nocache = false) {
 996                 global $schema_version;
 997
 998                 if (!$schema_version && !$nocache) {
 999                         $result = db_query("SELECT schema_version FROM ttrss_version");
1000                         $version = db_fetch_result($result, 0, "schema_version");
1001                         $schema_version = $version;
1002                         return $version;
1003                 } else {
1004                         return $schema_version;
1005                 }
1006         }
1007
1008         function sanity_check() {
1009                 require_once 'errors.php';
1010                 global $ERRORS;
1011
1012                 $error_code = 0;
1013                 $schema_version = get_schema_version(true);
1014
1015                 if ($schema_version != SCHEMA_VERSION) {
1016                         $error_code = 5;
1017                 }
1018
1019                 if (DB_TYPE == "mysql") {
1020                         $result = db_query("SELECT true", false);
1021                         if (db_num_rows($result) != 1) {
1022                                 $error_code = 10;
1023                         }
1024                 }
1025
1026                 if (db_escape_string("testTEST") != "testTEST") {
1027                         $error_code = 12;
1028                 }
1029
1030                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1031         }
1032
1033         function file_is_locked($filename) {
1034                 if (file_exists(LOCK_DIRECTORY . "/$filename")) {
1035                         if (function_exists('flock')) {
1036                                 $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1037                                 if ($fp) {
1038                                         if (flock($fp, LOCK_EX | LOCK_NB)) {
1039                                                 flock($fp, LOCK_UN);
1040                                                 fclose($fp);
1041                                                 return false;
1042                                         }
1043                                         fclose($fp);
1044                                         return true;
1045                                 } else {
1046                                         return false;
1047                                 }
1048                         }
1049                         return true; // consider the file always locked and skip the test
1050                 } else {
1051                         return false;
1052                 }
1053         }
1054
1055
1056         function make_lockfile($filename) {
1057                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1058
1059                 if ($fp && flock($fp, LOCK_EX | LOCK_NB)) {
1060                         $stat_h = fstat($fp);
1061                         $stat_f = stat(LOCK_DIRECTORY . "/$filename");
1062
1063                         if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
1064                                 if ($stat_h["ino"] != $stat_f["ino"] ||
1065                                                 $stat_h["dev"] != $stat_f["dev"]) {
1066
1067                                         return false;
1068                                 }
1069                         }
1070
1071                         if (function_exists('posix_getpid')) {
1072                                 fwrite($fp, posix_getpid() . "\n");
1073                         }
1074                         return $fp;
1075                 } else {
1076                         return false;
1077                 }
1078         }
1079
1080         function make_stampfile($filename) {
1081                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1082
1083                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1084                         fwrite($fp, time() . "\n");
1085                         flock($fp, LOCK_UN);
1086                         fclose($fp);
1087                         return true;
1088                 } else {
1089                         return false;
1090                 }
1091         }
1092
1093         function sql_random_function() {
1094                 if (DB_TYPE == "mysql") {
1095                         return "RAND()";
1096                 } else {
1097                         return "RANDOM()";
1098                 }
1099         }
1100
1101         function catchup_feed($feed, $cat_view, $owner_uid = false, $max_id = false, $mode = 'all') {
1102
1103                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1104
1105                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1106
1107                         // Todo: all this interval stuff needs some generic generator function
1108
1109                         $date_qpart = "false";
1110
1111                         switch ($mode) {
1112                         case "1day":
1113                                 if (DB_TYPE == "pgsql") {
1114                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
1115                                 } else {
1116                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
1117                                 }
1118                                 break;
1119                         case "1week":
1120                                 if (DB_TYPE == "pgsql") {
1121                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 week' ";
1122                                 } else {
1123                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 WEEK) ";
1124                                 }
1125                                 break;
1126                         case "2week":
1127                                 if (DB_TYPE == "pgsql") {
1128                                         $date_qpart = "date_entered < NOW() - INTERVAL '2 week' ";
1129                                 } else {
1130                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 2 WEEK) ";
1131                                 }
1132                                 break;
1133                         default:
1134                                 $date_qpart = "true";
1135                         }
1136
1137                         if (is_numeric($feed)) {
1138                                 if ($cat_view) {
1139
1140                                         if ($feed >= 0) {
1141
1142                                                 if ($feed > 0) {
1143                                                         $children = getChildCategories($feed, $owner_uid);
1144                                                         array_push($children, $feed);
1145
1146                                                         $children = join(",", $children);
1147
1148                                                         $cat_qpart = "cat_id IN ($children)";
1149                                                 } else {
1150                                                         $cat_qpart = "cat_id IS NULL";
1151                                                 }
1152
1153                                                 db_query("UPDATE ttrss_user_entries
1154                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1155                                                                 (SELECT id FROM
1156                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1157                                                                                 AND owner_uid = $owner_uid AND unread = true AND feed_id IN
1158                                                                                         (SELECT id FROM ttrss_feeds WHERE $cat_qpart) AND $date_qpart) as tmp)");
1159
1160                                         } else if ($feed == -2) {
1161
1162                                                 db_query("UPDATE ttrss_user_entries
1163                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1164                                                                 FROM ttrss_user_labels2, ttrss_entries WHERE article_id = ref_id AND id = ref_id AND $date_qpart) > 0
1165                                                                 AND unread = true AND owner_uid = $owner_uid");
1166                                         }
1167
1168                                 } else if ($feed > 0) {
1169
1170                                         db_query("UPDATE ttrss_user_entries
1171                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1172                                                         (SELECT id FROM
1173                                                                 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1174                                                                         AND owner_uid = $owner_uid AND unread = true AND feed_id = $feed AND $date_qpart) as tmp)");
1175
1176                                 } else if ($feed < 0 && $feed > LABEL_BASE_INDEX) { // special, like starred
1177
1178                                         if ($feed == -1) {
1179                                                 db_query("UPDATE ttrss_user_entries
1180                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1181                                                                 (SELECT id FROM
1182                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1183                                                                                 AND owner_uid = $owner_uid AND unread = true AND marked = true AND $date_qpart) as tmp)");
1184                                         }
1185
1186                                         if ($feed == -2) {
1187                                                 db_query("UPDATE ttrss_user_entries
1188                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1189                                                                 (SELECT id FROM
1190                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1191                                                                                 AND owner_uid = $owner_uid AND unread = true AND published = true AND $date_qpart) as tmp)");
1192                                         }
1193
1194                                         if ($feed == -3) {
1195
1196                                                 $intl = get_pref("FRESH_ARTICLE_MAX_AGE");
1197
1198                                                 if (DB_TYPE == "pgsql") {
1199                                                         $match_part = "date_entered > NOW() - INTERVAL '$intl hour' ";
1200                                                 } else {
1201                                                         $match_part = "date_entered > DATE_SUB(NOW(),
1202                                                                 INTERVAL $intl HOUR) ";
1203                                                 }
1204
1205                                                 db_query("UPDATE ttrss_user_entries
1206                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1207                                                                 (SELECT id FROM
1208                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1209                                                                                 AND owner_uid = $owner_uid AND score >= 0 AND unread = true AND $date_qpart AND $match_part) as tmp)");
1210                                         }
1211
1212                                         if ($feed == -4) {
1213                                                 db_query("UPDATE ttrss_user_entries
1214                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1215                                                                 (SELECT id FROM
1216                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1217                                                                                 AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1218                                         }
1219
1220                                 } else if ($feed < LABEL_BASE_INDEX) { // label
1221
1222                                         $label_id = feed_to_label_id($feed);
1223
1224                                         db_query("UPDATE ttrss_user_entries
1225                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1226                                                         (SELECT id FROM
1227                                                                 (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_user_labels2 WHERE ref_id = id
1228                                                                         AND label_id = '$label_id' AND ref_id = article_id
1229                                                                         AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1230
1231                                 }
1232
1233                                 ccache_update($feed, $owner_uid, $cat_view);
1234
1235                         } else { // tag
1236                                 db_query("UPDATE ttrss_user_entries
1237                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1238                                                 (SELECT id FROM
1239                                                         (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_tags WHERE ref_id = ttrss_entries.id
1240                                                                 AND post_int_id = int_id AND tag_name = '$feed'
1241                                                                 AND ttrss_user_entries.owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1242
1243                         }
1244         }
1245
1246         function getAllCounters() {
1247                 $data = getGlobalCounters();
1248
1249                 $data = array_merge($data, getVirtCounters());
1250                 $data = array_merge($data, getLabelCounters());
1251                 $data = array_merge($data, getFeedCounters());
1252                 $data = array_merge($data, getCategoryCounters());
1253
1254                 return $data;
1255         }
1256
1257         function getCategoryTitle($cat_id) {
1258
1259                 if ($cat_id == -1) {
1260                         return __("Special");
1261                 } else if ($cat_id == -2) {
1262                         return __("Labels");
1263                 } else {
1264
1265                         $result = db_query("SELECT title FROM ttrss_feed_categories WHERE
1266                                 id = '$cat_id'");
1267
1268                         if (db_num_rows($result) == 1) {
1269                                 return db_fetch_result($result, 0, "title");
1270                         } else {
1271                                 return __("Uncategorized");
1272                         }
1273                 }
1274         }
1275
1276
1277         function getCategoryCounters() {
1278                 $ret_arr = array();
1279
1280                 /* Labels category */
1281
1282                 $cv = array("id" => -2, "kind" => "cat",
1283                         "counter" => getCategoryUnread(-2));
1284
1285                 array_push($ret_arr, $cv);
1286
1287                 $result = db_query("SELECT id AS cat_id, value AS unread,
1288                         (SELECT COUNT(id) FROM ttrss_feed_categories AS c2
1289                                 WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
1290                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
1291                         WHERE ttrss_cat_counters_cache.feed_id = id AND
1292                         ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid AND
1293                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1294
1295                 while ($line = db_fetch_assoc($result)) {
1296                         $line["cat_id"] = (int) $line["cat_id"];
1297
1298                         if ($line["num_children"] > 0) {
1299                                 $child_counter = getCategoryChildrenUnread($line["cat_id"], $_SESSION["uid"]);
1300                         } else {
1301                                 $child_counter = 0;
1302                         }
1303
1304                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
1305                                 "counter" => $line["unread"] + $child_counter);
1306
1307                         array_push($ret_arr, $cv);
1308                 }
1309
1310                 /* Special case: NULL category doesn't actually exist in the DB */
1311
1312                 $cv = array("id" => 0, "kind" => "cat",
1313                         "counter" => (int) ccache_find(0, $_SESSION["uid"], true));
1314
1315                 array_push($ret_arr, $cv);
1316
1317                 return $ret_arr;
1318         }
1319
1320         // only accepts real cats (>= 0)
1321         function getCategoryChildrenUnread($cat, $owner_uid = false) {
1322                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1323
1324                 $result = db_query("SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
1325                                 AND owner_uid = $owner_uid");
1326
1327                 $unread = 0;
1328
1329                 while ($line = db_fetch_assoc($result)) {
1330                         $unread += getCategoryUnread($line["id"], $owner_uid);
1331                         $unread += getCategoryChildrenUnread($line["id"], $owner_uid);
1332                 }
1333
1334                 return $unread;
1335         }
1336
1337         function getCategoryUnread($cat, $owner_uid = false) {
1338
1339                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1340
1341                 if ($cat >= 0) {
1342
1343                         if ($cat != 0) {
1344                                 $cat_query = "cat_id = '$cat'";
1345                         } else {
1346                                 $cat_query = "cat_id IS NULL";
1347                         }
1348
1349                         $result = db_query("SELECT id FROM ttrss_feeds WHERE $cat_query
1350                                         AND owner_uid = " . $owner_uid);
1351
1352                         $cat_feeds = array();
1353                         while ($line = db_fetch_assoc($result)) {
1354                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
1355                         }
1356
1357                         if (count($cat_feeds) == 0) return 0;
1358
1359                         $match_part = implode(" OR ", $cat_feeds);
1360
1361                         $result = db_query("SELECT COUNT(int_id) AS unread
1362                                 FROM ttrss_user_entries
1363                                 WHERE   unread = true AND ($match_part)
1364                                 AND owner_uid = " . $owner_uid);
1365
1366                         $unread = 0;
1367
1368                         # this needs to be rewritten
1369                         while ($line = db_fetch_assoc($result)) {
1370                                 $unread += $line["unread"];
1371                         }
1372
1373                         return $unread;
1374                 } else if ($cat == -1) {
1375                         return getFeedUnread(-1) + getFeedUnread(-2) + getFeedUnread(-3) + getFeedUnread(0);
1376                 } else if ($cat == -2) {
1377
1378                         $result = db_query("
1379                                 SELECT COUNT(unread) AS unread FROM
1380                                         ttrss_user_entries, ttrss_user_labels2
1381                                 WHERE article_id = ref_id AND unread = true
1382                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
1383
1384                         $unread = db_fetch_result($result, 0, "unread");
1385
1386                         return $unread;
1387
1388                 }
1389         }
1390
1391         function getFeedUnread($feed, $is_cat = false) {
1392                 return getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]);
1393         }
1394
1395         function getLabelUnread($label_id, $owner_uid = false) {
1396                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1397
1398                 $result = db_query("SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
1399                         WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
1400
1401                 if (db_num_rows($result) != 0) {
1402                         return db_fetch_result($result, 0, "unread");
1403                 } else {
1404                         return 0;
1405                 }
1406         }
1407
1408         function getFeedArticles($feed, $is_cat = false, $unread_only = false,
1409                 $owner_uid = false) {
1410
1411                 $n_feed = (int) $feed;
1412                 $need_entries = false;
1413
1414                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1415
1416                 if ($unread_only) {
1417                         $unread_qpart = "unread = true";
1418                 } else {
1419                         $unread_qpart = "true";
1420                 }
1421
1422                 if ($is_cat) {
1423                         return getCategoryUnread($n_feed, $owner_uid);
1424                 } else if ($n_feed == -6) {
1425                         return 0;
1426                 } else if ($feed != "0" && $n_feed == 0) {
1427
1428                         $feed = db_escape_string($feed);
1429
1430                         $result = db_query("SELECT SUM((SELECT COUNT(int_id)
1431                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1432                                         AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
1433                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1434                         return db_fetch_result($result, 0, "count");
1435
1436                 } else if ($n_feed == -1) {
1437                         $match_part = "marked = true";
1438                 } else if ($n_feed == -2) {
1439                         $match_part = "published = true";
1440                 } else if ($n_feed == -3) {
1441                         $match_part = "unread = true AND score >= 0";
1442
1443                         $intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
1444
1445                         if (DB_TYPE == "pgsql") {
1446                                 $match_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
1447                         } else {
1448                                 $match_part .= " AND date_entered > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1449                         }
1450
1451                         $need_entries = true;
1452
1453                 } else if ($n_feed == -4) {
1454                         $match_part = "true";
1455                 } else if ($n_feed >= 0) {
1456
1457                         if ($n_feed != 0) {
1458                                 $match_part = "feed_id = '$n_feed'";
1459                         } else {
1460                                 $match_part = "feed_id IS NULL";
1461                         }
1462
1463                 } else if ($feed < LABEL_BASE_INDEX) {
1464
1465                         $label_id = feed_to_label_id($feed);
1466
1467                         return getLabelUnread($label_id, $owner_uid);
1468
1469                 }
1470
1471                 if ($match_part) {
1472
1473                         if ($need_entries) {
1474                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
1475                                 $from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
1476                         } else {
1477                                 $from_qpart = "ttrss_user_entries";
1478                                 $from_where = "";
1479                         }
1480
1481                         $query = "SELECT count(int_id) AS unread
1482                                 FROM $from_qpart WHERE
1483                                 $unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1484
1485                         //echo "[$feed/$query]\n";
1486
1487                         $result = db_query($query);
1488
1489                 } else {
1490
1491                         $result = db_query("SELECT COUNT(post_int_id) AS unread
1492                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1493                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1494                                 AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
1495                 }
1496
1497                 $unread = db_fetch_result($result, 0, "unread");
1498
1499                 return $unread;
1500         }
1501
1502         function getGlobalUnread($user_id = false) {
1503
1504                 if (!$user_id) {
1505                         $user_id = $_SESSION["uid"];
1506                 }
1507
1508                 $result = db_query("SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1509                         WHERE owner_uid = '$user_id' AND feed_id > 0");
1510
1511                 $c_id = db_fetch_result($result, 0, "c_id");
1512
1513                 return $c_id;
1514         }
1515
1516         function getGlobalCounters($global_unread = -1) {
1517                 $ret_arr = array();
1518
1519                 if ($global_unread == -1) {
1520                         $global_unread = getGlobalUnread();
1521                 }
1522
1523                 $cv = array("id" => "global-unread",
1524                         "counter" => (int) $global_unread);
1525
1526                 array_push($ret_arr, $cv);
1527
1528                 $result = db_query("SELECT COUNT(id) AS fn FROM
1529                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1530
1531                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1532
1533                 $cv = array("id" => "subscribed-feeds",
1534                         "counter" => (int) $subscribed_feeds);
1535
1536                 array_push($ret_arr, $cv);
1537
1538                 return $ret_arr;
1539         }
1540
1541         function getVirtCounters() {
1542
1543                 $ret_arr = array();
1544
1545                 for ($i = 0; $i >= -4; $i--) {
1546
1547                         $count = getFeedUnread($i);
1548
1549                         if ($i == 0 || $i == -1 || $i == -2)
1550                                 $auxctr = getFeedArticles($i, false);
1551                         else
1552                                 $auxctr = 0;
1553
1554                         $cv = array("id" => $i,
1555                                 "counter" => (int) $count,
1556                                 "auxcounter" => $auxctr);
1557
1558 //                      if (get_pref('EXTENDED_FEEDLIST'))
1559 //                              $cv["xmsg"] = getFeedArticles($i)." ".__("total");
1560
1561                         array_push($ret_arr, $cv);
1562                 }
1563
1564                 $feeds = PluginHost::getInstance()->get_feeds(-1);
1565
1566                 if (is_array($feeds)) {
1567                         foreach ($feeds as $feed) {
1568                                 $cv = array("id" => PluginHost::pfeed_to_feed_id($feed['id']),
1569                                         "counter" => $feed['sender']->get_unread($feed['id']));
1570
1571                                 if (method_exists($feed['sender'], 'get_total'))
1572                                         $cv["auxcounter"] = $feed['sender']->get_total($feed['id']);
1573
1574                                 array_push($ret_arr, $cv);
1575                         }
1576                 }
1577
1578                 return $ret_arr;
1579         }
1580
1581         function getLabelCounters($descriptions = false) {
1582
1583                 $ret_arr = array();
1584
1585                 $owner_uid = $_SESSION["uid"];
1586
1587                 $result = db_query("SELECT id,caption,SUM(CASE WHEN u1.unread = true THEN 1 ELSE 0 END) AS unread, COUNT(u1.unread) AS total
1588                         FROM ttrss_labels2 LEFT JOIN ttrss_user_labels2 ON
1589                                 (ttrss_labels2.id = label_id)
1590                                 LEFT JOIN ttrss_user_entries AS u1 ON u1.ref_id = article_id
1591                                 WHERE ttrss_labels2.owner_uid = $owner_uid GROUP BY ttrss_labels2.id,
1592                                         ttrss_labels2.caption");
1593
1594                 while ($line = db_fetch_assoc($result)) {
1595
1596                         $id = label_to_feed_id($line["id"]);
1597
1598                         $cv = array("id" => $id,
1599                                 "counter" => (int) $line["unread"],
1600                                 "auxcounter" => (int) $line["total"]);
1601
1602                         if ($descriptions)
1603                                 $cv["description"] = $line["caption"];
1604
1605                         array_push($ret_arr, $cv);
1606                 }
1607
1608                 return $ret_arr;
1609         }
1610
1611         function getFeedCounters($active_feed = false) {
1612
1613                 $ret_arr = array();
1614
1615                 $query = "SELECT ttrss_feeds.id,
1616                                 ttrss_feeds.title,
1617                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1618                                 last_error, value AS count
1619                         FROM ttrss_feeds, ttrss_counters_cache
1620                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1621                                 AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
1622                                 AND ttrss_counters_cache.feed_id = id";
1623
1624                 $result = db_query($query);
1625
1626                 while ($line = db_fetch_assoc($result)) {
1627
1628                         $id = $line["id"];
1629                         $count = $line["count"];
1630                         $last_error = htmlspecialchars($line["last_error"]);
1631
1632                         $last_updated = make_local_datetime($line['last_updated'], false);
1633
1634                         $has_img = feed_has_icon($id);
1635
1636                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1637                                 $last_updated = '';
1638
1639                         $cv = array("id" => $id,
1640                                 "updated" => $last_updated,
1641                                 "counter" => (int) $count,
1642                                 "has_img" => (int) $has_img);
1643
1644                         if ($last_error)
1645                                 $cv["error"] = $last_error;
1646
1647 //                      if (get_pref('EXTENDED_FEEDLIST'))
1648 //                              $cv["xmsg"] = getFeedArticles($id)." ".__("total");
1649
1650                         if ($active_feed && $id == $active_feed)
1651                                 $cv["title"] = truncate_string($line["title"], 30);
1652
1653                         array_push($ret_arr, $cv);
1654
1655                 }
1656
1657                 return $ret_arr;
1658         }
1659
1660         function get_pgsql_version() {
1661                 $result = db_query("SELECT version() AS version");
1662                 $version = explode(" ", db_fetch_result($result, 0, "version"));
1663                 return $version[1];
1664         }
1665
1666         /**
1667          * @return array (code => Status code, message => error message if available)
1668          *
1669          *                 0 - OK, Feed already exists
1670          *                 1 - OK, Feed added
1671          *                 2 - Invalid URL
1672          *                 3 - URL content is HTML, no feeds available
1673          *                 4 - URL content is HTML which contains multiple feeds.
1674          *                     Here you should call extractfeedurls in rpc-backend
1675          *                     to get all possible feeds.
1676          *                 5 - Couldn't download the URL content.
1677          *                 6 - Content is an invalid XML.
1678          */
1679         function subscribe_to_feed($url, $cat_id = 0,
1680                         $auth_login = '', $auth_pass = '') {
1681
1682                 global $fetch_last_error;
1683
1684                 require_once "include/rssfuncs.php";
1685
1686                 $url = fix_url($url);
1687
1688                 if (!$url || !validate_feed_url($url)) return array("code" => 2);
1689
1690                 $contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
1691
1692                 if (!$contents) {
1693                         return array("code" => 5, "message" => $fetch_last_error);
1694                 }
1695
1696                 foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SUBSCRIBE_FEED) as $plugin) {
1697                         $contents = $plugin->hook_subscribe_feed($contents, $url, $auth_login, $auth_pass);
1698                 }
1699
1700                 if (is_html($contents)) {
1701                         $feedUrls = get_feeds_from_html($url, $contents);
1702
1703                         if (count($feedUrls) == 0) {
1704                                 return array("code" => 3);
1705                         } else if (count($feedUrls) > 1) {
1706                                 return array("code" => 4, "feeds" => $feedUrls);
1707                         }
1708                         //use feed url as new URL
1709                         $url = key($feedUrls);
1710                 }
1711
1712                 if ($cat_id == "0" || !$cat_id) {
1713                         $cat_qpart = "NULL";
1714                 } else {
1715                         $cat_qpart = "'$cat_id'";
1716                 }
1717
1718                 $result = db_query(
1719                         "SELECT id FROM ttrss_feeds
1720                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1721
1722                 if (strlen(FEED_CRYPT_KEY) > 0) {
1723                         require_once "crypt.php";
1724                         $auth_pass = substr(encrypt_string($auth_pass), 0, 250);
1725                         $auth_pass_encrypted = 'true';
1726                 } else {
1727                         $auth_pass_encrypted = 'false';
1728                 }
1729
1730                 $auth_pass = db_escape_string($auth_pass);
1731
1732                 if (db_num_rows($result) == 0) {
1733                         $result = db_query(
1734                                 "INSERT INTO ttrss_feeds
1735                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method,auth_pass_encrypted)
1736                                 VALUES ('".$_SESSION["uid"]."', '$url',
1737                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0, $auth_pass_encrypted)");
1738
1739                         $result = db_query(
1740                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1741                                         AND owner_uid = " . $_SESSION["uid"]);
1742
1743                         $feed_id = db_fetch_result($result, 0, "id");
1744
1745                         if ($feed_id) {
1746                                 set_basic_feed_info($feed_id);
1747                         }
1748
1749                         return array("code" => 1);
1750                 } else {
1751                         return array("code" => 0);
1752                 }
1753         }
1754
1755         function print_feed_select($id, $default_id = "",
1756                 $attributes = "", $include_all_feeds = true,
1757                 $root_id = false, $nest_level = 0) {
1758
1759                 if (!$root_id) {
1760                         print "<select id=\"$id\" name=\"$id\" $attributes>";
1761                         if ($include_all_feeds) {
1762                                 $is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
1763                                 print "<option $is_selected value=\"0\">".__('All feeds')."</option>";
1764                         }
1765                 }
1766
1767                 if (get_pref('ENABLE_FEED_CATS')) {
1768
1769                         if ($root_id)
1770                                 $parent_qpart = "parent_cat = '$root_id'";
1771                         else
1772                                 $parent_qpart = "parent_cat IS NULL";
1773
1774                         $result = db_query("SELECT id,title,
1775                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1776                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1777                                 FROM ttrss_feed_categories
1778                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1779
1780                         while ($line = db_fetch_assoc($result)) {
1781
1782                                 for ($i = 0; $i < $nest_level; $i++)
1783                                         $line["title"] = " - " . $line["title"];
1784
1785                                 $is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
1786
1787                                 printf("<option $is_selected value='CAT:%d'>%s</option>",
1788                                         $line["id"], htmlspecialchars($line["title"]));
1789
1790                                 if ($line["num_children"] > 0)
1791                                         print_feed_select($id, $default_id, $attributes,
1792                                                 $include_all_feeds, $line["id"], $nest_level+1);
1793
1794                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1795                                         WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1796
1797                                 while ($fline = db_fetch_assoc($feed_result)) {
1798                                         $is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
1799
1800                                         $fline["title"] = " + " . $fline["title"];
1801
1802                                         for ($i = 0; $i < $nest_level; $i++)
1803                                                 $fline["title"] = " - " . $fline["title"];
1804
1805                                         printf("<option $is_selected value='%d'>%s</option>",
1806                                                 $fline["id"], htmlspecialchars($fline["title"]));
1807                                 }
1808                         }
1809
1810                         if (!$root_id) {
1811                                 $default_is_cat = ($default_id == "CAT:0");
1812                                 $is_selected = $default_is_cat ? "selected=\"1\"" : "";
1813
1814                                 printf("<option $is_selected value='CAT:0'>%s</option>",
1815                                         __("Uncategorized"));
1816
1817                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1818                                         WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1819
1820                                 while ($fline = db_fetch_assoc($feed_result)) {
1821                                         $is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
1822
1823                                         $fline["title"] = " + " . $fline["title"];
1824
1825                                         for ($i = 0; $i < $nest_level; $i++)
1826                                                 $fline["title"] = " - " . $fline["title"];
1827
1828                                         printf("<option $is_selected value='%d'>%s</option>",
1829                                                 $fline["id"], htmlspecialchars($fline["title"]));
1830                                 }
1831                         }
1832
1833                 } else {
1834                         $result = db_query("SELECT id,title FROM ttrss_feeds
1835                                 WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1836
1837                         while ($line = db_fetch_assoc($result)) {
1838
1839                                 $is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
1840
1841                                 printf("<option $is_selected value='%d'>%s</option>",
1842                                         $line["id"], htmlspecialchars($line["title"]));
1843                         }
1844                 }
1845
1846                 if (!$root_id) {
1847                         print "</select>";
1848                 }
1849         }
1850
1851         function print_feed_cat_select($id, $default_id,
1852                 $attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
1853
1854                         if (!$root_id) {
1855                                         print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1856                         }
1857
1858                         if ($root_id)
1859                                 $parent_qpart = "parent_cat = '$root_id'";
1860                         else
1861                                 $parent_qpart = "parent_cat IS NULL";
1862
1863                         $result = db_query("SELECT id,title,
1864                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1865                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1866                                 FROM ttrss_feed_categories
1867                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1868
1869                         while ($line = db_fetch_assoc($result)) {
1870                                 if ($line["id"] == $default_id) {
1871                                         $is_selected = "selected=\"1\"";
1872                                 } else {
1873                                         $is_selected = "";
1874                                 }
1875
1876                                 for ($i = 0; $i < $nest_level; $i++)
1877                                         $line["title"] = " - " . $line["title"];
1878
1879                                 if ($line["title"])
1880                                         printf("<option $is_selected value='%d'>%s</option>",
1881                                                 $line["id"], htmlspecialchars($line["title"]));
1882
1883                                 if ($line["num_children"] > 0)
1884                                         print_feed_cat_select($id, $default_id, $attributes,
1885                                                 $include_all_cats, $line["id"], $nest_level+1);
1886                         }
1887
1888                         if (!$root_id) {
1889                                 if ($include_all_cats) {
1890                                         if (db_num_rows($result) > 0) {
1891                                                 print "<option disabled=\"1\">--------</option>";
1892                                         }
1893
1894                                         if ($default_id == 0) {
1895                                                 $is_selected = "selected=\"1\"";
1896                                         } else {
1897                                                 $is_selected = "";
1898                                         }
1899
1900                                         print "<option $is_selected value=\"0\">".__('Uncategorized')."</option>";
1901                                 }
1902                                 print "</select>";
1903                         }
1904                 }
1905
1906         function checkbox_to_sql_bool($val) {
1907                 return ($val == "on") ? "true" : "false";
1908         }
1909
1910         function getFeedCatTitle($id) {
1911                 if ($id == -1) {
1912                         return __("Special");
1913                 } else if ($id < LABEL_BASE_INDEX) {
1914                         return __("Labels");
1915                 } else if ($id > 0) {
1916                         $result = db_query("SELECT ttrss_feed_categories.title
1917                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
1918                                         cat_id = ttrss_feed_categories.id");
1919                         if (db_num_rows($result) == 1) {
1920                                 return db_fetch_result($result, 0, "title");
1921                         } else {
1922                                 return __("Uncategorized");
1923                         }
1924                 } else {
1925                         return "getFeedCatTitle($id) failed";
1926                 }
1927
1928         }
1929
1930         function getFeedIcon($id) {
1931                 switch ($id) {
1932                 case 0:
1933                         return "images/archive.png";
1934                         break;
1935                 case -1:
1936                         return "images/star.png";
1937                         break;
1938                 case -2:
1939                         return "images/feed.png";
1940                         break;
1941                 case -3:
1942                         return "images/fresh.png";
1943                         break;
1944                 case -4:
1945                         return "images/folder.png";
1946                         break;
1947                 case -6:
1948                         return "images/time.png";
1949                         break;
1950                 default:
1951                         if ($id < LABEL_BASE_INDEX) {
1952                                 return "images/label.png";
1953                         } else {
1954                                 if (file_exists(ICONS_DIR . "/$id.ico"))
1955                                         return ICONS_URL . "/$id.ico";
1956                         }
1957                         break;
1958                 }
1959
1960                 return false;
1961         }
1962
1963         function getFeedTitle($id, $cat = false) {
1964                 if ($cat) {
1965                         return getCategoryTitle($id);
1966                 } else if ($id == -1) {
1967                         return __("Starred articles");
1968                 } else if ($id == -2) {
1969                         return __("Published articles");
1970                 } else if ($id == -3) {
1971                         return __("Fresh articles");
1972                 } else if ($id == -4) {
1973                         return __("All articles");
1974                 } else if ($id === 0 || $id === "0") {
1975                         return __("Archived articles");
1976                 } else if ($id == -6) {
1977                         return __("Recently read");
1978                 } else if ($id < LABEL_BASE_INDEX) {
1979                         $label_id = feed_to_label_id($id);
1980                         $result = db_query("SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
1981                         if (db_num_rows($result) == 1) {
1982                                 return db_fetch_result($result, 0, "caption");
1983                         } else {
1984                                 return "Unknown label ($label_id)";
1985                         }
1986
1987                 } else if (is_numeric($id) && $id > 0) {
1988                         $result = db_query("SELECT title FROM ttrss_feeds WHERE id = '$id'");
1989                         if (db_num_rows($result) == 1) {
1990                                 return db_fetch_result($result, 0, "title");
1991                         } else {
1992                                 return "Unknown feed ($id)";
1993                         }
1994                 } else {
1995                         return $id;
1996                 }
1997         }
1998
1999         // TODO: less dumb splitting
2000         require_once "functions2.php";
2001
2002 ?>