include/functions.php

   1 <?php
   2         define('EXPECTED_CONFIG_VERSION', 26);
   3         define('SCHEMA_VERSION', 125);
   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_curl_used = false;
  14         $suppress_debugging = false;
  15
  16         mb_internal_encoding("UTF-8");
  17         date_default_timezone_set('UTC');
  18         if (defined('E_DEPRECATED')) {
  19                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
  20         } else {
  21                 error_reporting(E_ALL & ~E_NOTICE);
  22         }
  23
  24         require_once 'config.php';
  25
  26         /**
  27          * Define a constant if not already defined
  28          *
  29          * @param string $name The constant name.
  30          * @param mixed $value The constant value.
  31          * @access public
  32          * @return boolean True if defined successfully or not.
  33          */
  34         function define_default($name, $value) {
  35                 defined($name) or define($name, $value);
  36         }
  37
  38         ///// Some defaults that you can override in config.php //////
  39
  40         define_default('FEED_FETCH_TIMEOUT', 45);
  41         // How may seconds to wait for response when requesting feed from a site
  42         define_default('FEED_FETCH_NO_CACHE_TIMEOUT', 15);
  43         // How may seconds to wait for response when requesting feed from a
  44         // site when that feed wasn't cached before
  45         define_default('FILE_FETCH_TIMEOUT', 45);
  46         // Default timeout when fetching files from remote sites
  47         define_default('FILE_FETCH_CONNECT_TIMEOUT', 15);
  48         // How many seconds to wait for initial response from website when
  49         // fetching files from remote sites
  50
  51         if (DB_TYPE == "pgsql") {
  52                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  53         } else {
  54                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  55         }
  56
  57         /**
  58          * Return available translations names.
  59          *
  60          * @access public
  61          * @return array A array of available translations.
  62          */
  63         function get_translations() {
  64                 $tr = array(
  65                                         "auto"  => "Detect automatically",
  66                                         "ca_CA" => "Català",
  67                                         "cs_CZ" => "Česky",
  68                                         "en_US" => "English",
  69                                         "es_ES" => "Español",
  70                                         "de_DE" => "Deutsch",
  71                                         "fr_FR" => "Français",
  72                                         "hu_HU" => "Magyar (Hungarian)",
  73                                         "it_IT" => "Italiano",
  74                                         "ja_JP" => "日本語 (Japanese)",
  75                                         "lv_LV" => "Latviešu",
  76                                         "nb_NO" => "Norwegian bokmål",
  77                                         "nl_NL" => "Dutch",
  78                                         "pl_PL" => "Polski",
  79                                         "ru_RU" => "Русский",
  80                                         "pt_BR" => "Portuguese/Brazil",
  81                                         "pt_PT" => "Portuguese/Portugal",
  82                                         "zh_CN" => "Simplified Chinese",
  83                                         "zh_TW" => "Traditional Chinese",
  84                                         "sv_SE" => "Svenska",
  85                                         "fi_FI" => "Suomi",
  86                                         "tr_TR" => "Türkçe");
  87
  88                 return $tr;
  89         }
  90
  91         require_once "lib/accept-to-gettext.php";
  92         require_once "lib/gettext/gettext.inc";
  93
  94         require_once "lib/languagedetect/LanguageDetect.php";
  95
  96         function startup_gettext() {
  97
  98                 # Get locale from Accept-Language header
  99                 $lang = al2gt(array_keys(get_translations()), "text/html");
 100
 101                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
 102                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
 103                 }
 104
 105                 if ($_SESSION["uid"] && get_schema_version() >= 120) {
 106                         $pref_lang = get_pref("USER_LANGUAGE", $_SESSION["uid"]);
 107
 108                         if ($pref_lang && $pref_lang != 'auto') {
 109                                 $lang = $pref_lang;
 110                         }
 111                 }
 112
 113                 if ($lang) {
 114                         if (defined('LC_MESSAGES')) {
 115                                 _setlocale(LC_MESSAGES, $lang);
 116                         } else if (defined('LC_ALL')) {
 117                                 _setlocale(LC_ALL, $lang);
 118                         }
 119
 120                         _bindtextdomain("messages", "locale");
 121
 122                         _textdomain("messages");
 123                         _bind_textdomain_codeset("messages", "UTF-8");
 124                 }
 125         }
 126
 127         require_once 'db-prefs.php';
 128         require_once 'version.php';
 129         require_once 'ccache.php';
 130         require_once 'labels.php';
 131
 132         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 133         ini_set('user_agent', SELF_USER_AGENT);
 134
 135         require_once 'lib/pubsubhubbub/publisher.php';
 136
 137         $schema_version = false;
 138
 139         function _debug_suppress($suppress) {
 140                 global $suppress_debugging;
 141
 142                 $suppress_debugging = $suppress;
 143         }
 144
 145         /**
 146          * Print a timestamped debug message.
 147          *
 148          * @param string $msg The debug message.
 149          * @return void
 150          */
 151         function _debug($msg, $show = true) {
 152                 global $suppress_debugging;
 153
 154                 //echo "[$suppress_debugging] $msg $show\n";
 155
 156                 if ($suppress_debugging) return false;
 157
 158                 $ts = strftime("%H:%M:%S", time());
 159                 if (function_exists('posix_getpid')) {
 160                         $ts = "$ts/" . posix_getpid();
 161                 }
 162
 163                 if ($show && !(defined('QUIET') && QUIET)) {
 164                         print "[$ts] $msg\n";
 165                 }
 166
 167                 if (defined('LOGFILE'))  {
 168                         $fp = fopen(LOGFILE, 'a+');
 169
 170                         if ($fp) {
 171                                 $locked = false;
 172
 173                                 if (function_exists("flock")) {
 174                                         $tries = 0;
 175
 176                                         // try to lock logfile for writing
 177                                         while ($tries < 5 && !$locked = flock($fp, LOCK_EX | LOCK_NB)) {
 178                                                 sleep(1);
 179                                                 ++$tries;
 180                                         }
 181
 182                                         if (!$locked) {
 183                                                 fclose($fp);
 184                                                 return;
 185                                         }
 186                                 }
 187
 188                                 fputs($fp, "[$ts] $msg\n");
 189
 190                                 if (function_exists("flock")) {
 191                                         flock($fp, LOCK_UN);
 192                                 }
 193
 194                                 fclose($fp);
 195                         }
 196                 }
 197
 198         } // function _debug
 199
 200         /**
 201          * Purge a feed old posts.
 202          *
 203          * @param mixed $link A database connection.
 204          * @param mixed $feed_id The id of the purged feed.
 205          * @param mixed $purge_interval Olderness of purged posts.
 206          * @param boolean $debug Set to True to enable the debug. False by default.
 207          * @access public
 208          * @return void
 209          */
 210         function purge_feed($feed_id, $purge_interval, $debug = false) {
 211
 212                 if (!$purge_interval) $purge_interval = feed_purge_interval($feed_id);
 213
 214                 $rows = -1;
 215
 216                 $result = db_query(
 217                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 218
 219                 $owner_uid = false;
 220
 221                 if (db_num_rows($result) == 1) {
 222                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 223                 }
 224
 225                 if ($purge_interval == -1 || !$purge_interval) {
 226                         if ($owner_uid) {
 227                                 ccache_update($feed_id, $owner_uid);
 228                         }
 229                         return;
 230                 }
 231
 232                 if (!$owner_uid) return;
 233
 234                 if (FORCE_ARTICLE_PURGE == 0) {
 235                         $purge_unread = get_pref("PURGE_UNREAD_ARTICLES",
 236                                 $owner_uid, false);
 237                 } else {
 238                         $purge_unread = true;
 239                         $purge_interval = FORCE_ARTICLE_PURGE;
 240                 }
 241
 242                 if (!$purge_unread) $query_limit = " unread = false AND ";
 243
 244                 if (DB_TYPE == "pgsql") {
 245                         $pg_version = get_pgsql_version();
 246
 247                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 248
 249                                 $result = db_query("DELETE FROM ttrss_user_entries WHERE
 250                                         ttrss_entries.id = ref_id AND
 251                                         marked = false AND
 252                                         feed_id = '$feed_id' AND
 253                                         $query_limit
 254                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 255
 256                         } else {
 257
 258                                 $result = db_query("DELETE FROM ttrss_user_entries
 259                                         USING ttrss_entries
 260                                         WHERE ttrss_entries.id = ref_id AND
 261                                         marked = false AND
 262                                         feed_id = '$feed_id' AND
 263                                         $query_limit
 264                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 265                         }
 266
 267                 } else {
 268
 269 /*                      $result = db_query("DELETE FROM ttrss_user_entries WHERE
 270                                 marked = false AND feed_id = '$feed_id' AND
 271                                 (SELECT date_updated FROM ttrss_entries WHERE
 272                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 273
 274                         $result = db_query("DELETE FROM ttrss_user_entries
 275                                 USING ttrss_user_entries, ttrss_entries
 276                                 WHERE ttrss_entries.id = ref_id AND
 277                                 marked = false AND
 278                                 feed_id = '$feed_id' AND
 279                                 $query_limit
 280                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 281                 }
 282
 283                 $rows = db_affected_rows($result);
 284
 285                 ccache_update($feed_id, $owner_uid);
 286
 287                 if ($debug) {
 288                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 289                 }
 290
 291                 return $rows;
 292         } // function purge_feed
 293
 294         function feed_purge_interval($feed_id) {
 295
 296                 $result = db_query("SELECT purge_interval, owner_uid FROM ttrss_feeds
 297                         WHERE id = '$feed_id'");
 298
 299                 if (db_num_rows($result) == 1) {
 300                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 301                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 302
 303                         if ($purge_interval == 0) $purge_interval = get_pref(
 304                                 'PURGE_OLD_DAYS', $owner_uid);
 305
 306                         return $purge_interval;
 307
 308                 } else {
 309                         return -1;
 310                 }
 311         }
 312
 313         function purge_orphans($do_output = false) {
 314
 315                 // purge orphaned posts in main content table
 316                 $result = db_query("DELETE FROM ttrss_entries WHERE
 317                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 318
 319                 if ($do_output) {
 320                         $rows = db_affected_rows($result);
 321                         _debug("Purged $rows orphaned posts.");
 322                 }
 323         }
 324
 325         function get_feed_update_interval($feed_id) {
 326                 $result = db_query("SELECT owner_uid, update_interval FROM
 327                         ttrss_feeds WHERE id = '$feed_id'");
 328
 329                 if (db_num_rows($result) == 1) {
 330                         $update_interval = db_fetch_result($result, 0, "update_interval");
 331                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 332
 333                         if ($update_interval != 0) {
 334                                 return $update_interval;
 335                         } else {
 336                                 return get_pref('DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 337                         }
 338
 339                 } else {
 340                         return -1;
 341                 }
 342         }
 343
 344         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false, $timeout = false, $timestamp = 0, $useragent = false) {
 345
 346                 global $fetch_last_error;
 347                 global $fetch_last_error_code;
 348                 global $fetch_last_content_type;
 349                 global $fetch_curl_used;
 350
 351                 $url = str_replace(' ', '%20', $url);
 352
 353                 if (!defined('NO_CURL') && function_exists('curl_init')) {
 354
 355                         $fetch_curl_used = true;
 356
 357                         if (ini_get("safe_mode") || ini_get("open_basedir")) {
 358                                 $new_url = geturl($url);
 359                                 if (!$new_url) {
 360                                     // geturl has already populated $fetch_last_error
 361                                     return false;
 362                                 }
 363                                 $ch = curl_init($new_url);
 364                         } else {
 365                                 $ch = curl_init($url);
 366                         }
 367
 368                         if ($timestamp && !$post_query) {
 369                                 curl_setopt($ch, CURLOPT_HTTPHEADER,
 370                                         array("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $timestamp)));
 371                         }
 372
 373                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
 374                         curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
 375                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("safe_mode") && !ini_get("open_basedir"));
 376                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 377                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 378                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 379                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 380                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 381                         curl_setopt($ch, CURLOPT_USERAGENT, $useragent ? $useragent :
 382                                 SELF_USER_AGENT);
 383                         curl_setopt($ch, CURLOPT_ENCODING, "");
 384                         //curl_setopt($ch, CURLOPT_REFERER, $url);
 385
 386                         if (!ini_get("safe_mode") && !ini_get("open_basedir")) {
 387                                 curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null");
 388                         }
 389
 390                         if (defined('_CURL_HTTP_PROXY')) {
 391                                 curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);
 392                         }
 393
 394                         if ($post_query) {
 395                                 curl_setopt($ch, CURLOPT_POST, true);
 396                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 397                         }
 398
 399                         if ((OPENSSL_VERSION_NUMBER >= 0x0090808f) && (OPENSSL_VERSION_NUMBER < 0x10000000)) {
 400                                 curl_setopt($ch, CURLOPT_SSLVERSION, 3);
 401                         }
 402
 403                         if ($login && $pass)
 404                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 405
 406                         $contents = @curl_exec($ch);
 407
 408                         if (curl_errno($ch) === 23 || curl_errno($ch) === 61) {
 409                                 curl_setopt($ch, CURLOPT_ENCODING, 'none');
 410                                 $contents = @curl_exec($ch);
 411                         }
 412
 413                         if ($contents === false) {
 414                                 $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
 415                                 curl_close($ch);
 416                                 return false;
 417                         }
 418
 419                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 420                         $fetch_last_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 421
 422                         $fetch_last_error_code = $http_code;
 423
 424                         if ($http_code != 200 || $type && strpos($fetch_last_content_type, "$type") === false) {
 425                                 if (curl_errno($ch) != 0) {
 426                                         $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
 427                                 } else {
 428                                         $fetch_last_error = "HTTP Code: $http_code";
 429                                 }
 430                                 curl_close($ch);
 431                                 return false;
 432                         }
 433
 434                         curl_close($ch);
 435
 436                         return $contents;
 437                 } else {
 438
 439                         $fetch_curl_used = false;
 440
 441                         if ($login && $pass){
 442                                 $url_parts = array();
 443
 444                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 445
 446                                 $pass = urlencode($pass);
 447
 448                                 if ($url_parts[1] && $url_parts[2]) {
 449                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 450                                 }
 451                         }
 452
 453                         if (!$post_query && $timestamp) {
 454                                 $context = stream_context_create(array(
 455                                         'http' => array(
 456                                                 'method' => 'GET',
 457                                                 'header' => "If-Modified-Since: ".gmdate("D, d M Y H:i:s \\G\\M\\T\r\n", $timestamp)
 458                                         )));
 459                         } else {
 460                                 $context = NULL;
 461                         }
 462
 463                         $old_error = error_get_last();
 464
 465                         $data = @file_get_contents($url, false, $context);
 466
 467                         $fetch_last_content_type = false;  // reset if no type was sent from server
 468                         if (isset($http_response_header) && is_array($http_response_header)) {
 469                                 foreach ($http_response_header as $h) {
 470                                         if (substr(strtolower($h), 0, 13) == 'content-type:') {
 471                                                 $fetch_last_content_type = substr($h, 14);
 472                                                 // don't abort here b/c there might be more than one
 473                                                 // e.g. if we were being redirected -- last one is the right one
 474                                         }
 475
 476                                         if (substr(strtolower($h), 0, 7) == 'http/1.') {
 477                                                 $fetch_last_error_code = (int) substr($h, 9, 3);
 478                                         }
 479                                 }
 480                         }
 481
 482                         if (!$data) {
 483                                 $error = error_get_last();
 484
 485                                 if ($error['message'] != $old_error['message']) {
 486                                         $fetch_last_error = $error["message"];
 487                                 } else {
 488                                         $fetch_last_error = "HTTP Code: $fetch_last_error_code";
 489                                 }
 490                         }
 491                         return $data;
 492                 }
 493
 494         }
 495
 496         /**
 497          * Try to determine the favicon URL for a feed.
 498          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 499          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 500          *
 501          * @param string $url A feed or page URL
 502          * @access public
 503          * @return mixed The favicon URL, or false if none was found.
 504          */
 505         function get_favicon_url($url) {
 506
 507                 $favicon_url = false;
 508
 509                 if ($html = @fetch_file_contents($url)) {
 510
 511                         libxml_use_internal_errors(true);
 512
 513                         $doc = new DOMDocument();
 514                         $doc->loadHTML($html);
 515                         $xpath = new DOMXPath($doc);
 516
 517                         $base = $xpath->query('/html/head/base');
 518                         foreach ($base as $b) {
 519                                 $url = $b->getAttribute("href");
 520                                 break;
 521                         }
 522
 523                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 524                         if (count($entries) > 0) {
 525                                 foreach ($entries as $entry) {
 526                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 527                                         break;
 528                                 }
 529                         }
 530                 }
 531
 532                 if (!$favicon_url)
 533                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 534
 535                 return $favicon_url;
 536         } // function get_favicon_url
 537
 538         function check_feed_favicon($site_url, $feed) {
 539 #               print "FAVICON [$site_url]: $favicon_url\n";
 540
 541                 $icon_file = ICONS_DIR . "/$feed.ico";
 542
 543                 if (!file_exists($icon_file)) {
 544                         $favicon_url = get_favicon_url($site_url);
 545
 546                         if ($favicon_url) {
 547                                 // Limiting to "image" type misses those served with text/plain
 548                                 $contents = fetch_file_contents($favicon_url); // , "image");
 549
 550                                 if ($contents) {
 551                                         // Crude image type matching.
 552                                         // Patterns gleaned from the file(1) source code.
 553                                         if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
 554                                                 // 0       string  \000\000\001\000        MS Windows icon resource
 555                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
 556                                         }
 557                                         elseif (preg_match('/^GIF8/', $contents)) {
 558                                                 // 0       string          GIF8            GIF image data
 559                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
 560                                         }
 561                                         elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
 562                                                 // 0       string          \x89PNG\x0d\x0a\x1a\x0a         PNG image data
 563                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
 564                                         }
 565                                         elseif (preg_match('/^\xff\xd8/', $contents)) {
 566                                                 // 0       beshort         0xffd8          JPEG image data
 567                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
 568                                         }
 569                                         else {
 570                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
 571                                                 $contents = "";
 572                                         }
 573                                 }
 574
 575                                 if ($contents) {
 576                                         $fp = @fopen($icon_file, "w");
 577
 578                                         if ($fp) {
 579                                                 fwrite($fp, $contents);
 580                                                 fclose($fp);
 581                                                 chmod($icon_file, 0644);
 582                                         }
 583                                 }
 584                         }
 585             return $icon_file;
 586                 }
 587         }
 588
 589         function print_select($id, $default, $values, $attributes = "") {
 590                 print "<select name=\"$id\" id=\"$id\" $attributes>";
 591                 foreach ($values as $v) {
 592                         if ($v == $default)
 593                                 $sel = "selected=\"1\"";
 594                          else
 595                                 $sel = "";
 596
 597                         $v = trim($v);
 598
 599                         print "<option value=\"$v\" $sel>$v</option>";
 600                 }
 601                 print "</select>";
 602         }
 603
 604         function print_select_hash($id, $default, $values, $attributes = "") {
 605                 print "<select name=\"$id\" id='$id' $attributes>";
 606                 foreach (array_keys($values) as $v) {
 607                         if ($v == $default)
 608                                 $sel = 'selected="selected"';
 609                          else
 610                                 $sel = "";
 611
 612                         $v = trim($v);
 613
 614                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
 615                 }
 616
 617                 print "</select>";
 618         }
 619
 620         function print_radio($id, $default, $true_is, $values, $attributes = "") {
 621                 foreach ($values as $v) {
 622
 623                         if ($v == $default)
 624                                 $sel = "checked";
 625                          else
 626                                 $sel = "";
 627
 628                         if ($v == $true_is) {
 629                                 $sel .= " value=\"1\"";
 630                         } else {
 631                                 $sel .= " value=\"0\"";
 632                         }
 633
 634                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
 635                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 636
 637                 }
 638         }
 639
 640         function initialize_user_prefs($uid, $profile = false) {
 641
 642                 $uid = db_escape_string($uid);
 643
 644                 if (!$profile) {
 645                         $profile = "NULL";
 646                         $profile_qpart = "AND profile IS NULL";
 647                 } else {
 648                         $profile_qpart = "AND profile = '$profile'";
 649                 }
 650
 651                 if (get_schema_version() < 63) $profile_qpart = "";
 652
 653                 db_query("BEGIN");
 654
 655                 $result = db_query("SELECT pref_name,def_value FROM ttrss_prefs");
 656
 657                 $u_result = db_query("SELECT pref_name
 658                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
 659
 660                 $active_prefs = array();
 661
 662                 while ($line = db_fetch_assoc($u_result)) {
 663                         array_push($active_prefs, $line["pref_name"]);
 664                 }
 665
 666                 while ($line = db_fetch_assoc($result)) {
 667                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 668 //                              print "adding " . $line["pref_name"] . "<br>";
 669
 670                                 $line["def_value"] = db_escape_string($line["def_value"]);
 671                                 $line["pref_name"] = db_escape_string($line["pref_name"]);
 672
 673                                 if (get_schema_version() < 63) {
 674                                         db_query("INSERT INTO ttrss_user_prefs
 675                                                 (owner_uid,pref_name,value) VALUES
 676                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 677
 678                                 } else {
 679                                         db_query("INSERT INTO ttrss_user_prefs
 680                                                 (owner_uid,pref_name,value, profile) VALUES
 681                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
 682                                 }
 683
 684                         }
 685                 }
 686
 687                 db_query("COMMIT");
 688
 689         }
 690
 691         function get_ssl_certificate_id() {
 692                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
 693                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
 694                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
 695                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
 696                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
 697                 }
 698                 if ($_SERVER["SSL_CLIENT_M_SERIAL"]) {
 699                         return sha1($_SERVER["SSL_CLIENT_M_SERIAL"] .
 700                                 $_SERVER["SSL_CLIENT_V_START"] .
 701                                 $_SERVER["SSL_CLIENT_V_END"] .
 702                                 $_SERVER["SSL_CLIENT_S_DN"]);
 703                 }
 704                 return "";
 705         }
 706
 707         function authenticate_user($login, $password, $check_only = false) {
 708
 709                 if (!SINGLE_USER_MODE) {
 710                         $user_id = false;
 711
 712                         foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) {
 713
 714                                 $user_id = (int) $plugin->authenticate($login, $password);
 715
 716                                 if ($user_id) {
 717                                         $_SESSION["auth_module"] = strtolower(get_class($plugin));
 718                                         break;
 719                                 }
 720                         }
 721
 722                         if ($user_id && !$check_only) {
 723                                 @session_start();
 724
 725                                 $_SESSION["uid"] = $user_id;
 726                                 $_SESSION["version"] = VERSION_STATIC;
 727
 728                                 $result = db_query("SELECT login,access_level,pwd_hash FROM ttrss_users
 729                                         WHERE id = '$user_id'");
 730
 731                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
 732                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 733                                 $_SESSION["csrf_token"] = uniqid(rand(), true);
 734
 735                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 736                                         $_SESSION["uid"]);
 737
 738                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 739                                 $_SESSION["user_agent"] = sha1($_SERVER['HTTP_USER_AGENT']);
 740                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
 741
 742                                 $_SESSION["last_version_check"] = time();
 743
 744                                 initialize_user_prefs($_SESSION["uid"]);
 745
 746                                 return true;
 747                         }
 748
 749                         return false;
 750
 751                 } else {
 752
 753                         $_SESSION["uid"] = 1;
 754                         $_SESSION["name"] = "admin";
 755                         $_SESSION["access_level"] = 10;
 756
 757                         $_SESSION["hide_hello"] = true;
 758                         $_SESSION["hide_logout"] = true;
 759
 760                         $_SESSION["auth_module"] = false;
 761
 762                         if (!$_SESSION["csrf_token"]) {
 763                                 $_SESSION["csrf_token"] = uniqid(rand(), true);
 764                         }
 765
 766                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 767
 768                         initialize_user_prefs($_SESSION["uid"]);
 769
 770                         return true;
 771                 }
 772         }
 773
 774         function make_password($length = 8) {
 775
 776                 $password = "";
 777                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
 778
 779         $i = 0;
 780
 781                 while ($i < $length) {
 782                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 783
 784                         if (!strstr($password, $char)) {
 785                                 $password .= $char;
 786                                 $i++;
 787                         }
 788                 }
 789                 return $password;
 790         }
 791
 792         // this is called after user is created to initialize default feeds, labels
 793         // or whatever else
 794
 795         // user preferences are checked on every login, not here
 796
 797         function initialize_user($uid) {
 798
 799                 db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
 800                         values ('$uid', 'Tiny Tiny RSS: New Releases',
 801                         'http://tt-rss.org/releases.rss')");
 802
 803                 db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
 804                         values ('$uid', 'Tiny Tiny RSS: Forum',
 805                                 'http://tt-rss.org/forum/rss.php')");
 806         }
 807
 808         function logout_user() {
 809                 session_destroy();
 810                 if (isset($_COOKIE[session_name()])) {
 811                    setcookie(session_name(), '', time()-42000, '/');
 812                 }
 813         }
 814
 815         function validate_csrf($csrf_token) {
 816                 return $csrf_token == $_SESSION['csrf_token'];
 817         }
 818
 819         function load_user_plugins($owner_uid) {
 820                 if ($owner_uid && SCHEMA_VERSION >= 100) {
 821                         $plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
 822
 823                         PluginHost::getInstance()->load($plugins, PluginHost::KIND_USER, $owner_uid);
 824
 825                         if (get_schema_version() > 100) {
 826                                 PluginHost::getInstance()->load_data();
 827                         }
 828                 }
 829         }
 830
 831         function login_sequence() {
 832                 if (SINGLE_USER_MODE) {
 833                         @session_start();
 834                         authenticate_user("admin", null);
 835                         startup_gettext();
 836                         load_user_plugins($_SESSION["uid"]);
 837                 } else {
 838                         if (!validate_session()) $_SESSION["uid"] = false;
 839
 840                         if (!$_SESSION["uid"]) {
 841
 842                                 if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) {
 843                                     $_SESSION["ref_schema_version"] = get_schema_version(true);
 844                                 } else {
 845                                          authenticate_user(null, null, true);
 846                                 }
 847
 848                                 if (!$_SESSION["uid"]) {
 849                                         @session_destroy();
 850                                         setcookie(session_name(), '', time()-42000, '/');
 851
 852                                         render_login_form();
 853                                         exit;
 854                                 }
 855
 856                         } else {
 857                                 /* bump login timestamp */
 858                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 859                                         $_SESSION["uid"]);
 860                                 $_SESSION["last_login_update"] = time();
 861                         }
 862
 863                         if ($_SESSION["uid"]) {
 864                                 startup_gettext();
 865                                 load_user_plugins($_SESSION["uid"]);
 866
 867                                 /* cleanup ccache */
 868
 869                                 db_query("DELETE FROM ttrss_counters_cache WHERE owner_uid = ".
 870                                         $_SESSION["uid"] . " AND
 871                                                 (SELECT COUNT(id) FROM ttrss_feeds WHERE
 872                                                         ttrss_feeds.id = feed_id) = 0");
 873
 874                                 db_query("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ".
 875                                         $_SESSION["uid"] . " AND
 876                                                 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
 877                                                         ttrss_feed_categories.id = feed_id) = 0");
 878
 879                         }
 880
 881                 }
 882         }
 883
 884         function truncate_string($str, $max_len, $suffix = '&hellip;') {
 885                 if (mb_strlen($str, "utf-8") > $max_len) {
 886                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
 887                 } else {
 888                         return $str;
 889                 }
 890         }
 891
 892         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
 893
 894                 try {
 895                         $source_tz = new DateTimeZone($source_tz);
 896                 } catch (Exception $e) {
 897                         $source_tz = new DateTimeZone('UTC');
 898                 }
 899
 900                 try {
 901                         $dest_tz = new DateTimeZone($dest_tz);
 902                 } catch (Exception $e) {
 903                         $dest_tz = new DateTimeZone('UTC');
 904                 }
 905
 906                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
 907                 return $dt->format('U') + $dest_tz->getOffset($dt);
 908         }
 909
 910         function make_local_datetime($timestamp, $long, $owner_uid = false,
 911                                         $no_smart_dt = false) {
 912
 913                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 914                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
 915
 916                 global $utc_tz;
 917                 global $user_tz;
 918
 919                 if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
 920
 921                 $timestamp = substr($timestamp, 0, 19);
 922
 923                 # We store date in UTC internally
 924                 $dt = new DateTime($timestamp, $utc_tz);
 925
 926                 $user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
 927
 928                 if ($user_tz_string != 'Automatic') {
 929
 930                         try {
 931                                 if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
 932                         } catch (Exception $e) {
 933                                 $user_tz = $utc_tz;
 934                         }
 935
 936                         $tz_offset = $user_tz->getOffset($dt);
 937                 } else {
 938                         $tz_offset = (int) -$_SESSION["clientTzOffset"];
 939                 }
 940
 941                 $user_timestamp = $dt->format('U') + $tz_offset;
 942
 943                 if (!$no_smart_dt) {
 944                         return smart_date_time($user_timestamp,
 945                                 $tz_offset, $owner_uid);
 946                 } else {
 947                         if ($long)
 948                                 $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
 949                         else
 950                                 $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
 951
 952                         return date($format, $user_timestamp);
 953                 }
 954         }
 955
 956         function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false) {
 957                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 958
 959                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
 960                         return date("G:i", $timestamp);
 961                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
 962                         $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
 963                         return date($format, $timestamp);
 964                 } else {
 965                         $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
 966                         return date($format, $timestamp);
 967                 }
 968         }
 969
 970         function sql_bool_to_bool($s) {
 971                 if ($s == "t" || $s == "1" || strtolower($s) == "true") {
 972                         return true;
 973                 } else {
 974                         return false;
 975                 }
 976         }
 977
 978         function bool_to_sql_bool($s) {
 979                 if ($s) {
 980                         return "true";
 981                 } else {
 982                         return "false";
 983                 }
 984         }
 985
 986         // Session caching removed due to causing wrong redirects to upgrade
 987         // script when get_schema_version() is called on an obsolete session
 988         // created on a previous schema version.
 989         function get_schema_version($nocache = false) {
 990                 global $schema_version;
 991
 992                 if (!$schema_version && !$nocache) {
 993                         $result = db_query("SELECT schema_version FROM ttrss_version");
 994                         $version = db_fetch_result($result, 0, "schema_version");
 995                         $schema_version = $version;
 996                         return $version;
 997                 } else {
 998                         return $schema_version;
 999                 }
1000         }
1001
1002         function sanity_check() {
1003                 require_once 'errors.php';
1004                 global $ERRORS;
1005
1006                 $error_code = 0;
1007                 $schema_version = get_schema_version(true);
1008
1009                 if ($schema_version != SCHEMA_VERSION) {
1010                         $error_code = 5;
1011                 }
1012
1013                 if (DB_TYPE == "mysql") {
1014                         $result = db_query("SELECT true", false);
1015                         if (db_num_rows($result) != 1) {
1016                                 $error_code = 10;
1017                         }
1018                 }
1019
1020                 if (db_escape_string("testTEST") != "testTEST") {
1021                         $error_code = 12;
1022                 }
1023
1024                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1025         }
1026
1027         function file_is_locked($filename) {
1028                 if (file_exists(LOCK_DIRECTORY . "/$filename")) {
1029                         if (function_exists('flock')) {
1030                                 $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1031                                 if ($fp) {
1032                                         if (flock($fp, LOCK_EX | LOCK_NB)) {
1033                                                 flock($fp, LOCK_UN);
1034                                                 fclose($fp);
1035                                                 return false;
1036                                         }
1037                                         fclose($fp);
1038                                         return true;
1039                                 } else {
1040                                         return false;
1041                                 }
1042                         }
1043                         return true; // consider the file always locked and skip the test
1044                 } else {
1045                         return false;
1046                 }
1047         }
1048
1049
1050         function make_lockfile($filename) {
1051                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1052
1053                 if ($fp && flock($fp, LOCK_EX | LOCK_NB)) {
1054                         $stat_h = fstat($fp);
1055                         $stat_f = stat(LOCK_DIRECTORY . "/$filename");
1056
1057                         if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
1058                                 if ($stat_h["ino"] != $stat_f["ino"] ||
1059                                                 $stat_h["dev"] != $stat_f["dev"]) {
1060
1061                                         return false;
1062                                 }
1063                         }
1064
1065                         if (function_exists('posix_getpid')) {
1066                                 fwrite($fp, posix_getpid() . "\n");
1067                         }
1068                         return $fp;
1069                 } else {
1070                         return false;
1071                 }
1072         }
1073
1074         function make_stampfile($filename) {
1075                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1076
1077                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1078                         fwrite($fp, time() . "\n");
1079                         flock($fp, LOCK_UN);
1080                         fclose($fp);
1081                         return true;
1082                 } else {
1083                         return false;
1084                 }
1085         }
1086
1087         function sql_random_function() {
1088                 if (DB_TYPE == "mysql") {
1089                         return "RAND()";
1090                 } else {
1091                         return "RANDOM()";
1092                 }
1093         }
1094
1095         function catchup_feed($feed, $cat_view, $owner_uid = false, $max_id = false, $mode = 'all') {
1096
1097                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1098
1099                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1100
1101                         // Todo: all this interval stuff needs some generic generator function
1102
1103                         $date_qpart = "false";
1104
1105                         switch ($mode) {
1106                         case "1day":
1107                                 if (DB_TYPE == "pgsql") {
1108                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
1109                                 } else {
1110                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
1111                                 }
1112                                 break;
1113                         case "1week":
1114                                 if (DB_TYPE == "pgsql") {
1115                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 week' ";
1116                                 } else {
1117                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 WEEK) ";
1118                                 }
1119                                 break;
1120                         case "2week":
1121                                 if (DB_TYPE == "pgsql") {
1122                                         $date_qpart = "date_entered < NOW() - INTERVAL '2 week' ";
1123                                 } else {
1124                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 2 WEEK) ";
1125                                 }
1126                                 break;
1127                         default:
1128                                 $date_qpart = "true";
1129                         }
1130
1131                         if (is_numeric($feed)) {
1132                                 if ($cat_view) {
1133
1134                                         if ($feed >= 0) {
1135
1136                                                 if ($feed > 0) {
1137                                                         $children = getChildCategories($feed, $owner_uid);
1138                                                         array_push($children, $feed);
1139
1140                                                         $children = join(",", $children);
1141
1142                                                         $cat_qpart = "cat_id IN ($children)";
1143                                                 } else {
1144                                                         $cat_qpart = "cat_id IS NULL";
1145                                                 }
1146
1147                                                 db_query("UPDATE ttrss_user_entries
1148                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1149                                                                 (SELECT id FROM
1150                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1151                                                                                 AND owner_uid = $owner_uid AND unread = true AND feed_id IN
1152                                                                                         (SELECT id FROM ttrss_feeds WHERE $cat_qpart) AND $date_qpart) as tmp)");
1153
1154                                         } else if ($feed == -2) {
1155
1156                                                 db_query("UPDATE ttrss_user_entries
1157                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1158                                                                 FROM ttrss_user_labels2, ttrss_entries WHERE article_id = ref_id AND id = ref_id AND $date_qpart) > 0
1159                                                                 AND unread = true AND owner_uid = $owner_uid");
1160                                         }
1161
1162                                 } else if ($feed > 0) {
1163
1164                                         db_query("UPDATE ttrss_user_entries
1165                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1166                                                         (SELECT id FROM
1167                                                                 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1168                                                                         AND owner_uid = $owner_uid AND unread = true AND feed_id = $feed AND $date_qpart) as tmp)");
1169
1170                                 } else if ($feed < 0 && $feed > LABEL_BASE_INDEX) { // special, like starred
1171
1172                                         if ($feed == -1) {
1173                                                 db_query("UPDATE ttrss_user_entries
1174                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1175                                                                 (SELECT id FROM
1176                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1177                                                                                 AND owner_uid = $owner_uid AND unread = true AND marked = true AND $date_qpart) as tmp)");
1178                                         }
1179
1180                                         if ($feed == -2) {
1181                                                 db_query("UPDATE ttrss_user_entries
1182                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1183                                                                 (SELECT id FROM
1184                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1185                                                                                 AND owner_uid = $owner_uid AND unread = true AND published = true AND $date_qpart) as tmp)");
1186                                         }
1187
1188                                         if ($feed == -3) {
1189
1190                                                 $intl = get_pref("FRESH_ARTICLE_MAX_AGE");
1191
1192                                                 if (DB_TYPE == "pgsql") {
1193                                                         $match_part = "date_entered > NOW() - INTERVAL '$intl hour' ";
1194                                                 } else {
1195                                                         $match_part = "date_entered > DATE_SUB(NOW(),
1196                                                                 INTERVAL $intl HOUR) ";
1197                                                 }
1198
1199                                                 db_query("UPDATE ttrss_user_entries
1200                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1201                                                                 (SELECT id FROM
1202                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1203                                                                                 AND owner_uid = $owner_uid AND unread = true AND $date_qpart AND $match_part) as tmp)");
1204                                         }
1205
1206                                         if ($feed == -4) {
1207                                                 db_query("UPDATE ttrss_user_entries
1208                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1209                                                                 (SELECT id FROM
1210                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1211                                                                                 AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1212                                         }
1213
1214                                 } else if ($feed < LABEL_BASE_INDEX) { // label
1215
1216                                         $label_id = feed_to_label_id($feed);
1217
1218                                         db_query("UPDATE ttrss_user_entries
1219                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1220                                                         (SELECT id FROM
1221                                                                 (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_user_labels2 WHERE ref_id = id
1222                                                                         AND label_id = '$label_id' AND ref_id = article_id
1223                                                                         AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1224
1225                                 }
1226
1227                                 ccache_update($feed, $owner_uid, $cat_view);
1228
1229                         } else { // tag
1230                                 db_query("UPDATE ttrss_user_entries
1231                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1232                                                 (SELECT id FROM
1233                                                         (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_tags WHERE ref_id = ttrss_entries.id
1234                                                                 AND post_int_id = int_id AND tag_name = '$feed'
1235                                                                 AND ttrss_user_entries.owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1236
1237                         }
1238         }
1239
1240         function getAllCounters() {
1241                 $data = getGlobalCounters();
1242
1243                 $data = array_merge($data, getVirtCounters());
1244                 $data = array_merge($data, getLabelCounters());
1245                 $data = array_merge($data, getFeedCounters());
1246                 $data = array_merge($data, getCategoryCounters());
1247
1248                 return $data;
1249         }
1250
1251         function getCategoryTitle($cat_id) {
1252
1253                 if ($cat_id == -1) {
1254                         return __("Special");
1255                 } else if ($cat_id == -2) {
1256                         return __("Labels");
1257                 } else {
1258
1259                         $result = db_query("SELECT title FROM ttrss_feed_categories WHERE
1260                                 id = '$cat_id'");
1261
1262                         if (db_num_rows($result) == 1) {
1263                                 return db_fetch_result($result, 0, "title");
1264                         } else {
1265                                 return __("Uncategorized");
1266                         }
1267                 }
1268         }
1269
1270
1271         function getCategoryCounters() {
1272                 $ret_arr = array();
1273
1274                 /* Labels category */
1275
1276                 $cv = array("id" => -2, "kind" => "cat",
1277                         "counter" => getCategoryUnread(-2));
1278
1279                 array_push($ret_arr, $cv);
1280
1281                 $result = db_query("SELECT id AS cat_id, value AS unread,
1282                         (SELECT COUNT(id) FROM ttrss_feed_categories AS c2
1283                                 WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
1284                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
1285                         WHERE ttrss_cat_counters_cache.feed_id = id AND
1286                         ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid AND
1287                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1288
1289                 while ($line = db_fetch_assoc($result)) {
1290                         $line["cat_id"] = (int) $line["cat_id"];
1291
1292                         if ($line["num_children"] > 0) {
1293                                 $child_counter = getCategoryChildrenUnread($line["cat_id"], $_SESSION["uid"]);
1294                         } else {
1295                                 $child_counter = 0;
1296                         }
1297
1298                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
1299                                 "counter" => $line["unread"] + $child_counter);
1300
1301                         array_push($ret_arr, $cv);
1302                 }
1303
1304                 /* Special case: NULL category doesn't actually exist in the DB */
1305
1306                 $cv = array("id" => 0, "kind" => "cat",
1307                         "counter" => (int) ccache_find(0, $_SESSION["uid"], true));
1308
1309                 array_push($ret_arr, $cv);
1310
1311                 return $ret_arr;
1312         }
1313
1314         // only accepts real cats (>= 0)
1315         function getCategoryChildrenUnread($cat, $owner_uid = false) {
1316                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1317
1318                 $result = db_query("SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
1319                                 AND owner_uid = $owner_uid");
1320
1321                 $unread = 0;
1322
1323                 while ($line = db_fetch_assoc($result)) {
1324                         $unread += getCategoryUnread($line["id"], $owner_uid);
1325                         $unread += getCategoryChildrenUnread($line["id"], $owner_uid);
1326                 }
1327
1328                 return $unread;
1329         }
1330
1331         function getCategoryUnread($cat, $owner_uid = false) {
1332
1333                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1334
1335                 if ($cat >= 0) {
1336
1337                         if ($cat != 0) {
1338                                 $cat_query = "cat_id = '$cat'";
1339                         } else {
1340                                 $cat_query = "cat_id IS NULL";
1341                         }
1342
1343                         $result = db_query("SELECT id FROM ttrss_feeds WHERE $cat_query
1344                                         AND owner_uid = " . $owner_uid);
1345
1346                         $cat_feeds = array();
1347                         while ($line = db_fetch_assoc($result)) {
1348                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
1349                         }
1350
1351                         if (count($cat_feeds) == 0) return 0;
1352
1353                         $match_part = implode(" OR ", $cat_feeds);
1354
1355                         $result = db_query("SELECT COUNT(int_id) AS unread
1356                                 FROM ttrss_user_entries
1357                                 WHERE   unread = true AND ($match_part)
1358                                 AND owner_uid = " . $owner_uid);
1359
1360                         $unread = 0;
1361
1362                         # this needs to be rewritten
1363                         while ($line = db_fetch_assoc($result)) {
1364                                 $unread += $line["unread"];
1365                         }
1366
1367                         return $unread;
1368                 } else if ($cat == -1) {
1369                         return getFeedUnread(-1) + getFeedUnread(-2) + getFeedUnread(-3) + getFeedUnread(0);
1370                 } else if ($cat == -2) {
1371
1372                         $result = db_query("
1373                                 SELECT COUNT(unread) AS unread FROM
1374                                         ttrss_user_entries, ttrss_user_labels2
1375                                 WHERE article_id = ref_id AND unread = true
1376                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
1377
1378                         $unread = db_fetch_result($result, 0, "unread");
1379
1380                         return $unread;
1381
1382                 }
1383         }
1384
1385         function getFeedUnread($feed, $is_cat = false) {
1386                 return getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]);
1387         }
1388
1389         function getLabelUnread($label_id, $owner_uid = false) {
1390                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1391
1392                 $result = db_query("SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
1393                         WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
1394
1395                 if (db_num_rows($result) != 0) {
1396                         return db_fetch_result($result, 0, "unread");
1397                 } else {
1398                         return 0;
1399                 }
1400         }
1401
1402         function getFeedArticles($feed, $is_cat = false, $unread_only = false,
1403                 $owner_uid = false) {
1404
1405                 $n_feed = (int) $feed;
1406                 $need_entries = false;
1407
1408                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1409
1410                 if ($unread_only) {
1411                         $unread_qpart = "unread = true";
1412                 } else {
1413                         $unread_qpart = "true";
1414                 }
1415
1416                 if ($is_cat) {
1417                         return getCategoryUnread($n_feed, $owner_uid);
1418                 } else if ($n_feed == -6) {
1419                         return 0;
1420                 } else if ($feed != "0" && $n_feed == 0) {
1421
1422                         $feed = db_escape_string($feed);
1423
1424                         $result = db_query("SELECT SUM((SELECT COUNT(int_id)
1425                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1426                                         AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
1427                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1428                         return db_fetch_result($result, 0, "count");
1429
1430                 } else if ($n_feed == -1) {
1431                         $match_part = "marked = true";
1432                 } else if ($n_feed == -2) {
1433                         $match_part = "published = true";
1434                 } else if ($n_feed == -3) {
1435                         $match_part = "unread = true AND score >= 0";
1436
1437                         $intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
1438
1439                         if (DB_TYPE == "pgsql") {
1440                                 $match_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
1441                         } else {
1442                                 $match_part .= " AND date_entered > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1443                         }
1444
1445                         $need_entries = true;
1446
1447                 } else if ($n_feed == -4) {
1448                         $match_part = "true";
1449                 } else if ($n_feed >= 0) {
1450
1451                         if ($n_feed != 0) {
1452                                 $match_part = "feed_id = '$n_feed'";
1453                         } else {
1454                                 $match_part = "feed_id IS NULL";
1455                         }
1456
1457                 } else if ($feed < LABEL_BASE_INDEX) {
1458
1459                         $label_id = feed_to_label_id($feed);
1460
1461                         return getLabelUnread($label_id, $owner_uid);
1462
1463                 }
1464
1465                 if ($match_part) {
1466
1467                         if ($need_entries) {
1468                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
1469                                 $from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
1470                         } else {
1471                                 $from_qpart = "ttrss_user_entries";
1472                                 $from_where = "";
1473                         }
1474
1475                         $query = "SELECT count(int_id) AS unread
1476                                 FROM $from_qpart WHERE
1477                                 $unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1478
1479                         //echo "[$feed/$query]\n";
1480
1481                         $result = db_query($query);
1482
1483                 } else {
1484
1485                         $result = db_query("SELECT COUNT(post_int_id) AS unread
1486                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1487                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1488                                 AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
1489                 }
1490
1491                 $unread = db_fetch_result($result, 0, "unread");
1492
1493                 return $unread;
1494         }
1495
1496         function getGlobalUnread($user_id = false) {
1497
1498                 if (!$user_id) {
1499                         $user_id = $_SESSION["uid"];
1500                 }
1501
1502                 $result = db_query("SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1503                         WHERE owner_uid = '$user_id' AND feed_id > 0");
1504
1505                 $c_id = db_fetch_result($result, 0, "c_id");
1506
1507                 return $c_id;
1508         }
1509
1510         function getGlobalCounters($global_unread = -1) {
1511                 $ret_arr = array();
1512
1513                 if ($global_unread == -1) {
1514                         $global_unread = getGlobalUnread();
1515                 }
1516
1517                 $cv = array("id" => "global-unread",
1518                         "counter" => (int) $global_unread);
1519
1520                 array_push($ret_arr, $cv);
1521
1522                 $result = db_query("SELECT COUNT(id) AS fn FROM
1523                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1524
1525                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1526
1527                 $cv = array("id" => "subscribed-feeds",
1528                         "counter" => (int) $subscribed_feeds);
1529
1530                 array_push($ret_arr, $cv);
1531
1532                 return $ret_arr;
1533         }
1534
1535         function getVirtCounters() {
1536
1537                 $ret_arr = array();
1538
1539                 for ($i = 0; $i >= -4; $i--) {
1540
1541                         $count = getFeedUnread($i);
1542
1543                         if ($i == 0 || $i == -1 || $i == -2)
1544                                 $auxctr = getFeedArticles($i, false);
1545                         else
1546                                 $auxctr = 0;
1547
1548                         $cv = array("id" => $i,
1549                                 "counter" => (int) $count,
1550                                 "auxcounter" => $auxctr);
1551
1552 //                      if (get_pref('EXTENDED_FEEDLIST'))
1553 //                              $cv["xmsg"] = getFeedArticles($i)." ".__("total");
1554
1555                         array_push($ret_arr, $cv);
1556                 }
1557
1558                 $feeds = PluginHost::getInstance()->get_feeds(-1);
1559
1560                 if (is_array($feeds)) {
1561                         foreach ($feeds as $feed) {
1562                                 $cv = array("id" => PluginHost::pfeed_to_feed_id($feed['id']),
1563                                         "counter" => $feed['sender']->get_unread($feed['id']));
1564
1565                                 if (method_exists($feed['sender'], 'get_total'))
1566                                         $cv["auxcounter"] = $feed['sender']->get_total($feed['id']);
1567
1568                                 array_push($ret_arr, $cv);
1569                         }
1570                 }
1571
1572                 return $ret_arr;
1573         }
1574
1575         function getLabelCounters($descriptions = false) {
1576
1577                 $ret_arr = array();
1578
1579                 $owner_uid = $_SESSION["uid"];
1580
1581                 $result = db_query("SELECT id,caption,SUM(CASE WHEN u1.unread = true THEN 1 ELSE 0 END) AS unread, COUNT(u1.unread) AS total
1582                         FROM ttrss_labels2 LEFT JOIN ttrss_user_labels2 ON
1583                                 (ttrss_labels2.id = label_id)
1584                                 LEFT JOIN ttrss_user_entries AS u1 ON u1.ref_id = article_id
1585                                 WHERE ttrss_labels2.owner_uid = $owner_uid GROUP BY ttrss_labels2.id,
1586                                         ttrss_labels2.caption");
1587
1588                 while ($line = db_fetch_assoc($result)) {
1589
1590                         $id = label_to_feed_id($line["id"]);
1591
1592                         $cv = array("id" => $id,
1593                                 "counter" => (int) $line["unread"],
1594                                 "auxcounter" => (int) $line["total"]);
1595
1596                         if ($descriptions)
1597                                 $cv["description"] = $line["caption"];
1598
1599                         array_push($ret_arr, $cv);
1600                 }
1601
1602                 return $ret_arr;
1603         }
1604
1605         function getFeedCounters($active_feed = false) {
1606
1607                 $ret_arr = array();
1608
1609                 $query = "SELECT ttrss_feeds.id,
1610                                 ttrss_feeds.title,
1611                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1612                                 last_error, value AS count
1613                         FROM ttrss_feeds, ttrss_counters_cache
1614                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1615                                 AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
1616                                 AND ttrss_counters_cache.feed_id = id";
1617
1618                 $result = db_query($query);
1619
1620                 while ($line = db_fetch_assoc($result)) {
1621
1622                         $id = $line["id"];
1623                         $count = $line["count"];
1624                         $last_error = htmlspecialchars($line["last_error"]);
1625
1626                         $last_updated = make_local_datetime($line['last_updated'], false);
1627
1628                         $has_img = feed_has_icon($id);
1629
1630                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1631                                 $last_updated = '';
1632
1633                         $cv = array("id" => $id,
1634                                 "updated" => $last_updated,
1635                                 "counter" => (int) $count,
1636                                 "has_img" => (int) $has_img);
1637
1638                         if ($last_error)
1639                                 $cv["error"] = $last_error;
1640
1641 //                      if (get_pref('EXTENDED_FEEDLIST'))
1642 //                              $cv["xmsg"] = getFeedArticles($id)." ".__("total");
1643
1644                         if ($active_feed && $id == $active_feed)
1645                                 $cv["title"] = truncate_string($line["title"], 30);
1646
1647                         array_push($ret_arr, $cv);
1648
1649                 }
1650
1651                 return $ret_arr;
1652         }
1653
1654         function get_pgsql_version() {
1655                 $result = db_query("SELECT version() AS version");
1656                 $version = explode(" ", db_fetch_result($result, 0, "version"));
1657                 return $version[1];
1658         }
1659
1660         /**
1661          * @return array (code => Status code, message => error message if available)
1662          *
1663          *                 0 - OK, Feed already exists
1664          *                 1 - OK, Feed added
1665          *                 2 - Invalid URL
1666          *                 3 - URL content is HTML, no feeds available
1667          *                 4 - URL content is HTML which contains multiple feeds.
1668          *                     Here you should call extractfeedurls in rpc-backend
1669          *                     to get all possible feeds.
1670          *                 5 - Couldn't download the URL content.
1671          *                 6 - Content is an invalid XML.
1672          */
1673         function subscribe_to_feed($url, $cat_id = 0,
1674                         $auth_login = '', $auth_pass = '') {
1675
1676                 global $fetch_last_error;
1677
1678                 require_once "include/rssfuncs.php";
1679
1680                 $url = fix_url($url);
1681
1682                 if (!$url || !validate_feed_url($url)) return array("code" => 2);
1683
1684                 $contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
1685
1686                 if (!$contents) {
1687                         return array("code" => 5, "message" => $fetch_last_error);
1688                 }
1689
1690                 if (is_html($contents)) {
1691                         $feedUrls = get_feeds_from_html($url, $contents);
1692
1693                         if (count($feedUrls) == 0) {
1694                                 return array("code" => 3);
1695                         } else if (count($feedUrls) > 1) {
1696                                 return array("code" => 4, "feeds" => $feedUrls);
1697                         }
1698                         //use feed url as new URL
1699                         $url = key($feedUrls);
1700                 }
1701
1702                 /* libxml_use_internal_errors(true);
1703                 $doc = new DOMDocument();
1704                 $doc->loadXML($contents);
1705                 $error = libxml_get_last_error();
1706                 libxml_clear_errors();
1707
1708                 if ($error) {
1709                         $error_message = format_libxml_error($error);
1710
1711                         return array("code" => 6, "message" => $error_message);
1712                 } */
1713
1714                 if ($cat_id == "0" || !$cat_id) {
1715                         $cat_qpart = "NULL";
1716                 } else {
1717                         $cat_qpart = "'$cat_id'";
1718                 }
1719
1720                 $result = db_query(
1721                         "SELECT id FROM ttrss_feeds
1722                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1723
1724                 if (strlen(FEED_CRYPT_KEY) > 0) {
1725                         require_once "crypt.php";
1726                         $auth_pass = substr(encrypt_string($auth_pass), 0, 250);
1727                         $auth_pass_encrypted = 'true';
1728                 } else {
1729                         $auth_pass_encrypted = 'false';
1730                 }
1731
1732                 $auth_pass = db_escape_string($auth_pass);
1733
1734                 if (db_num_rows($result) == 0) {
1735                         $result = db_query(
1736                                 "INSERT INTO ttrss_feeds
1737                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method,auth_pass_encrypted)
1738                                 VALUES ('".$_SESSION["uid"]."', '$url',
1739                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0, $auth_pass_encrypted)");
1740
1741                         $result = db_query(
1742                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1743                                         AND owner_uid = " . $_SESSION["uid"]);
1744
1745                         $feed_id = db_fetch_result($result, 0, "id");
1746
1747                         if ($feed_id) {
1748                                 update_rss_feed($feed_id, true);
1749                         }
1750
1751                         return array("code" => 1);
1752                 } else {
1753                         return array("code" => 0);
1754                 }
1755         }
1756
1757         function print_feed_select($id, $default_id = "",
1758                 $attributes = "", $include_all_feeds = true,
1759                 $root_id = false, $nest_level = 0) {
1760
1761                 if (!$root_id) {
1762                         print "<select id=\"$id\" name=\"$id\" $attributes>";
1763                         if ($include_all_feeds) {
1764                                 $is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
1765                                 print "<option $is_selected value=\"0\">".__('All feeds')."</option>";
1766                         }
1767                 }
1768
1769                 if (get_pref('ENABLE_FEED_CATS')) {
1770
1771                         if ($root_id)
1772                                 $parent_qpart = "parent_cat = '$root_id'";
1773                         else
1774                                 $parent_qpart = "parent_cat IS NULL";
1775
1776                         $result = db_query("SELECT id,title,
1777                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1778                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1779                                 FROM ttrss_feed_categories
1780                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1781
1782                         while ($line = db_fetch_assoc($result)) {
1783
1784                                 for ($i = 0; $i < $nest_level; $i++)
1785                                         $line["title"] = " - " . $line["title"];
1786
1787                                 $is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
1788
1789                                 printf("<option $is_selected value='CAT:%d'>%s</option>",
1790                                         $line["id"], htmlspecialchars($line["title"]));
1791
1792                                 if ($line["num_children"] > 0)
1793                                         print_feed_select($id, $default_id, $attributes,
1794                                                 $include_all_feeds, $line["id"], $nest_level+1);
1795
1796                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1797                                         WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1798
1799                                 while ($fline = db_fetch_assoc($feed_result)) {
1800                                         $is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
1801
1802                                         $fline["title"] = " + " . $fline["title"];
1803
1804                                         for ($i = 0; $i < $nest_level; $i++)
1805                                                 $fline["title"] = " - " . $fline["title"];
1806
1807                                         printf("<option $is_selected value='%d'>%s</option>",
1808                                                 $fline["id"], htmlspecialchars($fline["title"]));
1809                                 }
1810                         }
1811
1812                         if (!$root_id) {
1813                                 $default_is_cat = ($default_id == "CAT:0");
1814                                 $is_selected = $default_is_cat ? "selected=\"1\"" : "";
1815
1816                                 printf("<option $is_selected value='CAT:0'>%s</option>",
1817                                         __("Uncategorized"));
1818
1819                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1820                                         WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1821
1822                                 while ($fline = db_fetch_assoc($feed_result)) {
1823                                         $is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
1824
1825                                         $fline["title"] = " + " . $fline["title"];
1826
1827                                         for ($i = 0; $i < $nest_level; $i++)
1828                                                 $fline["title"] = " - " . $fline["title"];
1829
1830                                         printf("<option $is_selected value='%d'>%s</option>",
1831                                                 $fline["id"], htmlspecialchars($fline["title"]));
1832                                 }
1833                         }
1834
1835                 } else {
1836                         $result = db_query("SELECT id,title FROM ttrss_feeds
1837                                 WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1838
1839                         while ($line = db_fetch_assoc($result)) {
1840
1841                                 $is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
1842
1843                                 printf("<option $is_selected value='%d'>%s</option>",
1844                                         $line["id"], htmlspecialchars($line["title"]));
1845                         }
1846                 }
1847
1848                 if (!$root_id) {
1849                         print "</select>";
1850                 }
1851         }
1852
1853         function print_feed_cat_select($id, $default_id,
1854                 $attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
1855
1856                         if (!$root_id) {
1857                                         print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1858                         }
1859
1860                         if ($root_id)
1861                                 $parent_qpart = "parent_cat = '$root_id'";
1862                         else
1863                                 $parent_qpart = "parent_cat IS NULL";
1864
1865                         $result = db_query("SELECT id,title,
1866                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1867                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1868                                 FROM ttrss_feed_categories
1869                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1870
1871                         while ($line = db_fetch_assoc($result)) {
1872                                 if ($line["id"] == $default_id) {
1873                                         $is_selected = "selected=\"1\"";
1874                                 } else {
1875                                         $is_selected = "";
1876                                 }
1877
1878                                 for ($i = 0; $i < $nest_level; $i++)
1879                                         $line["title"] = " - " . $line["title"];
1880
1881                                 if ($line["title"])
1882                                         printf("<option $is_selected value='%d'>%s</option>",
1883                                                 $line["id"], htmlspecialchars($line["title"]));
1884
1885                                 if ($line["num_children"] > 0)
1886                                         print_feed_cat_select($id, $default_id, $attributes,
1887                                                 $include_all_cats, $line["id"], $nest_level+1);
1888                         }
1889
1890                         if (!$root_id) {
1891                                 if ($include_all_cats) {
1892                                         if (db_num_rows($result) > 0) {
1893                                                 print "<option disabled=\"1\">--------</option>";
1894                                         }
1895
1896                                         if ($default_id == 0) {
1897                                                 $is_selected = "selected=\"1\"";
1898                                         } else {
1899                                                 $is_selected = "";
1900                                         }
1901
1902                                         print "<option $is_selected value=\"0\">".__('Uncategorized')."</option>";
1903                                 }
1904                                 print "</select>";
1905                         }
1906                 }
1907
1908         function checkbox_to_sql_bool($val) {
1909                 return ($val == "on") ? "true" : "false";
1910         }
1911
1912         function getFeedCatTitle($id) {
1913                 if ($id == -1) {
1914                         return __("Special");
1915                 } else if ($id < LABEL_BASE_INDEX) {
1916                         return __("Labels");
1917                 } else if ($id > 0) {
1918                         $result = db_query("SELECT ttrss_feed_categories.title
1919                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
1920                                         cat_id = ttrss_feed_categories.id");
1921                         if (db_num_rows($result) == 1) {
1922                                 return db_fetch_result($result, 0, "title");
1923                         } else {
1924                                 return __("Uncategorized");
1925                         }
1926                 } else {
1927                         return "getFeedCatTitle($id) failed";
1928                 }
1929
1930         }
1931
1932         function getFeedIcon($id) {
1933                 switch ($id) {
1934                 case 0:
1935                         return "images/archive.png";
1936                         break;
1937                 case -1:
1938                         return "images/star.png";
1939                         break;
1940                 case -2:
1941                         return "images/feed.png";
1942                         break;
1943                 case -3:
1944                         return "images/fresh.png";
1945                         break;
1946                 case -4:
1947                         return "images/folder.png";
1948                         break;
1949                 case -6:
1950                         return "images/time.png";
1951                         break;
1952                 default:
1953                         if ($id < LABEL_BASE_INDEX) {
1954                                 return "images/label.png";
1955                         } else {
1956                                 if (file_exists(ICONS_DIR . "/$id.ico"))
1957                                         return ICONS_URL . "/$id.ico";
1958                         }
1959                         break;
1960                 }
1961
1962                 return false;
1963         }
1964
1965         function getFeedTitle($id, $cat = false) {
1966                 if ($cat) {
1967                         return getCategoryTitle($id);
1968                 } else if ($id == 0) {
1969                         return __("All feeds");
1970                 } else if ($id == -1) {
1971                         return __("Starred articles");
1972                 } else if ($id == -2) {
1973                         return __("Published articles");
1974                 } else if ($id == -3) {
1975                         return __("Fresh articles");
1976                 } else if ($id == -4) {
1977                         return __("All articles");
1978                 } else if ($id === 0 || $id === "0") {
1979                         return __("Archived articles");
1980                 } else if ($id == -6) {
1981                         return __("Recently read");
1982                 } else if ($id < LABEL_BASE_INDEX) {
1983                         $label_id = feed_to_label_id($id);
1984                         $result = db_query("SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
1985                         if (db_num_rows($result) == 1) {
1986                                 return db_fetch_result($result, 0, "caption");
1987                         } else {
1988                                 return "Unknown label ($label_id)";
1989                         }
1990
1991                 } else if (is_numeric($id) && $id > 0) {
1992                         $result = db_query("SELECT title FROM ttrss_feeds WHERE id = '$id'");
1993                         if (db_num_rows($result) == 1) {
1994                                 return db_fetch_result($result, 0, "title");
1995                         } else {
1996                                 return "Unknown feed ($id)";
1997                         }
1998                 } else {
1999                         return $id;
2000                 }
2001         }
2002
2003         // TODO: less dumb splitting
2004         require_once "functions2.php";
2005
2006 ?>