include/functions.php

   1 <?php
   2         define('EXPECTED_CONFIG_VERSION', 26);
   3         define('SCHEMA_VERSION', 129);
   4
   5         define('LABEL_BASE_INDEX', -1024);
   6         define('PLUGIN_FEED_BASE_INDEX', -128);
   7
   8         define('COOKIE_LIFETIME_LONG', 86400*365);
   9
  10         $fetch_last_error = false;
  11         $fetch_last_error_code = false;
  12         $fetch_last_content_type = false;
  13         $fetch_last_error_content = false; // curl only for the time being
  14         $fetch_curl_used = false;
  15         $suppress_debugging = false;
  16
  17         libxml_disable_entity_loader(true);
  18
  19         mb_internal_encoding("UTF-8");
  20         date_default_timezone_set('UTC');
  21         if (defined('E_DEPRECATED')) {
  22                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
  23         } else {
  24                 error_reporting(E_ALL & ~E_NOTICE);
  25         }
  26
  27         require_once 'config.php';
  28
  29         /**
  30          * Define a constant if not already defined
  31          *
  32          * @param string $name The constant name.
  33          * @param mixed $value The constant value.
  34          * @access public
  35          * @return boolean True if defined successfully or not.
  36          */
  37         function define_default($name, $value) {
  38                 defined($name) or define($name, $value);
  39         }
  40
  41         ///// Some defaults that you can override in config.php //////
  42
  43         define_default('FEED_FETCH_TIMEOUT', 45);
  44         // How may seconds to wait for response when requesting feed from a site
  45         define_default('FEED_FETCH_NO_CACHE_TIMEOUT', 15);
  46         // How may seconds to wait for response when requesting feed from a
  47         // site when that feed wasn't cached before
  48         define_default('FILE_FETCH_TIMEOUT', 45);
  49         // Default timeout when fetching files from remote sites
  50         define_default('FILE_FETCH_CONNECT_TIMEOUT', 15);
  51         // How many seconds to wait for initial response from website when
  52         // fetching files from remote sites
  53
  54         if (DB_TYPE == "pgsql") {
  55                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  56         } else {
  57                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  58         }
  59
  60         /**
  61          * Return available translations names.
  62          *
  63          * @access public
  64          * @return array A array of available translations.
  65          */
  66         function get_translations() {
  67                 $tr = array(
  68                                         "auto"  => "Detect automatically",
  69                                         "ar_SA" => "العربيّة (Arabic)",
  70                                         "bg_BG" => "Bulgarian",
  71                                         "da_DA" => "Dansk",
  72                                         "ca_CA" => "Català",
  73                                         "cs_CZ" => "Česky",
  74                                         "en_US" => "English",
  75                                         "el_GR" => "Ελληνικά",
  76                                         "es_ES" => "Español (España)",
  77                                         "es_LA" => "Español",
  78                                         "de_DE" => "Deutsch",
  79                                         "fr_FR" => "Français",
  80                                         "hu_HU" => "Magyar (Hungarian)",
  81                                         "it_IT" => "Italiano",
  82                                         "ja_JP" => "日本語 (Japanese)",
  83                                         "lv_LV" => "Latviešu",
  84                                         "nb_NO" => "Norwegian bokmål",
  85                                         "nl_NL" => "Dutch",
  86                                         "pl_PL" => "Polski",
  87                                         "ru_RU" => "Русский",
  88                                         "pt_BR" => "Portuguese/Brazil",
  89                                         "pt_PT" => "Portuguese/Portugal",
  90                                         "zh_CN" => "Simplified Chinese",
  91                                         "zh_TW" => "Traditional Chinese",
  92                                         "sv_SE" => "Svenska",
  93                                         "fi_FI" => "Suomi",
  94                                         "tr_TR" => "Türkçe");
  95
  96                 return $tr;
  97         }
  98
  99         require_once "lib/accept-to-gettext.php";
 100         require_once "lib/gettext/gettext.inc";
 101
 102         function startup_gettext() {
 103
 104                 # Get locale from Accept-Language header
 105                 $lang = al2gt(array_keys(get_translations()), "text/html");
 106
 107                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
 108                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
 109                 }
 110
 111                 if ($_SESSION["uid"] && get_schema_version() >= 120) {
 112                         $pref_lang = get_pref("USER_LANGUAGE", $_SESSION["uid"]);
 113
 114                         if ($pref_lang && $pref_lang != 'auto') {
 115                                 $lang = $pref_lang;
 116                         }
 117                 }
 118
 119                 if ($lang) {
 120                         if (defined('LC_MESSAGES')) {
 121                                 _setlocale(LC_MESSAGES, $lang);
 122                         } else if (defined('LC_ALL')) {
 123                                 _setlocale(LC_ALL, $lang);
 124                         }
 125
 126                         _bindtextdomain("messages", "locale");
 127
 128                         _textdomain("messages");
 129                         _bind_textdomain_codeset("messages", "UTF-8");
 130                 }
 131         }
 132
 133         require_once 'db-prefs.php';
 134         require_once 'version.php';
 135         require_once 'ccache.php';
 136         require_once 'labels.php';
 137
 138         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 139         ini_set('user_agent', SELF_USER_AGENT);
 140
 141         require_once 'lib/pubsubhubbub/publisher.php';
 142
 143         $schema_version = false;
 144
 145         function _debug_suppress($suppress) {
 146                 global $suppress_debugging;
 147
 148                 $suppress_debugging = $suppress;
 149         }
 150
 151         /**
 152          * Print a timestamped debug message.
 153          *
 154          * @param string $msg The debug message.
 155          * @return void
 156          */
 157         function _debug($msg, $show = true) {
 158                 global $suppress_debugging;
 159
 160                 //echo "[$suppress_debugging] $msg $show\n";
 161
 162                 if ($suppress_debugging) return false;
 163
 164                 $ts = strftime("%H:%M:%S", time());
 165                 if (function_exists('posix_getpid')) {
 166                         $ts = "$ts/" . posix_getpid();
 167                 }
 168
 169                 if ($show && !(defined('QUIET') && QUIET)) {
 170                         print "[$ts] $msg\n";
 171                 }
 172
 173                 if (defined('LOGFILE'))  {
 174                         $fp = fopen(LOGFILE, 'a+');
 175
 176                         if ($fp) {
 177                                 $locked = false;
 178
 179                                 if (function_exists("flock")) {
 180                                         $tries = 0;
 181
 182                                         // try to lock logfile for writing
 183                                         while ($tries < 5 && !$locked = flock($fp, LOCK_EX | LOCK_NB)) {
 184                                                 sleep(1);
 185                                                 ++$tries;
 186                                         }
 187
 188                                         if (!$locked) {
 189                                                 fclose($fp);
 190                                                 return;
 191                                         }
 192                                 }
 193
 194                                 fputs($fp, "[$ts] $msg\n");
 195
 196                                 if (function_exists("flock")) {
 197                                         flock($fp, LOCK_UN);
 198                                 }
 199
 200                                 fclose($fp);
 201                         }
 202                 }
 203
 204         } // function _debug
 205
 206         /**
 207          * Purge a feed old posts.
 208          *
 209          * @param mixed $link A database connection.
 210          * @param mixed $feed_id The id of the purged feed.
 211          * @param mixed $purge_interval Olderness of purged posts.
 212          * @param boolean $debug Set to True to enable the debug. False by default.
 213          * @access public
 214          * @return void
 215          */
 216         function purge_feed($feed_id, $purge_interval, $debug = false) {
 217
 218                 if (!$purge_interval) $purge_interval = feed_purge_interval($feed_id);
 219
 220                 $rows = -1;
 221
 222                 $result = db_query(
 223                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 224
 225                 $owner_uid = false;
 226
 227                 if (db_num_rows($result) == 1) {
 228                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 229                 }
 230
 231                 if ($purge_interval == -1 || !$purge_interval) {
 232                         if ($owner_uid) {
 233                                 ccache_update($feed_id, $owner_uid);
 234                         }
 235                         return;
 236                 }
 237
 238                 if (!$owner_uid) return;
 239
 240                 if (FORCE_ARTICLE_PURGE == 0) {
 241                         $purge_unread = get_pref("PURGE_UNREAD_ARTICLES",
 242                                 $owner_uid, false);
 243                 } else {
 244                         $purge_unread = true;
 245                         $purge_interval = FORCE_ARTICLE_PURGE;
 246                 }
 247
 248                 if (!$purge_unread) $query_limit = " unread = false AND ";
 249
 250                 if (DB_TYPE == "pgsql") {
 251                         $result = db_query("DELETE FROM ttrss_user_entries
 252                                 USING ttrss_entries
 253                                 WHERE ttrss_entries.id = ref_id AND
 254                                 marked = false AND
 255                                 feed_id = '$feed_id' AND
 256                                 $query_limit
 257                                 ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 258
 259                 } else {
 260
 261 /*                      $result = db_query("DELETE FROM ttrss_user_entries WHERE
 262                                 marked = false AND feed_id = '$feed_id' AND
 263                                 (SELECT date_updated FROM ttrss_entries WHERE
 264                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 265
 266                         $result = db_query("DELETE FROM ttrss_user_entries
 267                                 USING ttrss_user_entries, ttrss_entries
 268                                 WHERE ttrss_entries.id = ref_id AND
 269                                 marked = false AND
 270                                 feed_id = '$feed_id' AND
 271                                 $query_limit
 272                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 273                 }
 274
 275                 $rows = db_affected_rows($result);
 276
 277                 ccache_update($feed_id, $owner_uid);
 278
 279                 if ($debug) {
 280                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 281                 }
 282
 283                 return $rows;
 284         } // function purge_feed
 285
 286         function feed_purge_interval($feed_id) {
 287
 288                 $result = db_query("SELECT purge_interval, owner_uid FROM ttrss_feeds
 289                         WHERE id = '$feed_id'");
 290
 291                 if (db_num_rows($result) == 1) {
 292                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 293                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 294
 295                         if ($purge_interval == 0) $purge_interval = get_pref(
 296                                 'PURGE_OLD_DAYS', $owner_uid);
 297
 298                         return $purge_interval;
 299
 300                 } else {
 301                         return -1;
 302                 }
 303         }
 304
 305         function purge_orphans($do_output = false) {
 306
 307                 // purge orphaned posts in main content table
 308                 $result = db_query("DELETE FROM ttrss_entries WHERE
 309                         NOT EXISTS (SELECT ref_id FROM ttrss_user_entries WHERE ref_id = id)");
 310
 311                 if ($do_output) {
 312                         $rows = db_affected_rows($result);
 313                         _debug("Purged $rows orphaned posts.");
 314                 }
 315         }
 316
 317         function get_feed_update_interval($feed_id) {
 318                 $result = db_query("SELECT owner_uid, update_interval FROM
 319                         ttrss_feeds WHERE id = '$feed_id'");
 320
 321                 if (db_num_rows($result) == 1) {
 322                         $update_interval = db_fetch_result($result, 0, "update_interval");
 323                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 324
 325                         if ($update_interval != 0) {
 326                                 return $update_interval;
 327                         } else {
 328                                 return get_pref('DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 329                         }
 330
 331                 } else {
 332                         return -1;
 333                 }
 334         }
 335
 336         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false, $timeout = false, $timestamp = 0, $useragent = false) {
 337
 338                 global $fetch_last_error;
 339                 global $fetch_last_error_code;
 340                 global $fetch_last_error_content;
 341                 global $fetch_last_content_type;
 342                 global $fetch_curl_used;
 343
 344                 $url = ltrim($url, ' ');
 345                 $url = str_replace(' ', '%20', $url);
 346
 347                 if (strpos($url, "//") === 0)
 348                         $url = 'http:' . $url;
 349
 350                 if (!defined('NO_CURL') && function_exists('curl_init')) {
 351
 352                         $fetch_curl_used = true;
 353
 354                         if (ini_get("safe_mode") || ini_get("open_basedir") || defined("FORCE_GETURL")) {
 355                                 $new_url = geturl($url);
 356                                 if (!$new_url) {
 357                                     // geturl has already populated $fetch_last_error
 358                                     return false;
 359                                 }
 360                                 $ch = curl_init($new_url);
 361                         } else {
 362                                 $ch = curl_init($url);
 363                         }
 364
 365                         if ($timestamp && !$post_query) {
 366                                 curl_setopt($ch, CURLOPT_HTTPHEADER,
 367                                         array("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $timestamp)));
 368                         }
 369
 370                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
 371                         curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
 372                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("safe_mode") && !ini_get("open_basedir"));
 373                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 374                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 375                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 376                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 377                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 378                         curl_setopt($ch, CURLOPT_USERAGENT, $useragent ? $useragent :
 379                                 SELF_USER_AGENT);
 380                         curl_setopt($ch, CURLOPT_ENCODING, "");
 381                         //curl_setopt($ch, CURLOPT_REFERER, $url);
 382
 383                         if (!ini_get("safe_mode") && !ini_get("open_basedir")) {
 384                                 curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null");
 385                         }
 386
 387                         if (defined('_CURL_HTTP_PROXY')) {
 388                                 curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);
 389                         }
 390
 391                         if ($post_query) {
 392                                 curl_setopt($ch, CURLOPT_POST, true);
 393                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 394                         }
 395
 396                         if ($login && $pass)
 397                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 398
 399                         $contents = @curl_exec($ch);
 400
 401                         if (curl_errno($ch) === 23 || curl_errno($ch) === 61) {
 402                                 curl_setopt($ch, CURLOPT_ENCODING, 'none');
 403                                 $contents = @curl_exec($ch);
 404                         }
 405
 406                         if ($contents === false) {
 407                                 $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
 408                                 curl_close($ch);
 409                                 return false;
 410                         }
 411
 412                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 413                         $fetch_last_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 414
 415                         $fetch_last_error_code = $http_code;
 416
 417                         if ($http_code != 200 || $type && strpos($fetch_last_content_type, "$type") === false) {
 418                                 if (curl_errno($ch) != 0) {
 419                                         $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
 420                                 } else {
 421                                         $fetch_last_error = "HTTP Code: $http_code";
 422                                 }
 423                                 $fetch_last_error_content = $contents;
 424                                 curl_close($ch);
 425                                 return false;
 426                         }
 427
 428                         curl_close($ch);
 429
 430                         return $contents;
 431                 } else {
 432
 433                         $fetch_curl_used = false;
 434
 435                         if ($login && $pass){
 436                                 $url_parts = array();
 437
 438                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 439
 440                                 $pass = urlencode($pass);
 441
 442                                 if ($url_parts[1] && $url_parts[2]) {
 443                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 444                                 }
 445                         }
 446
 447                         if (!$post_query && $timestamp) {
 448                                 $context = stream_context_create(array(
 449                                         'http' => array(
 450                                                 'method' => 'GET',
 451                                                 'header' => "If-Modified-Since: ".gmdate("D, d M Y H:i:s \\G\\M\\T\r\n", $timestamp)
 452                                         )));
 453                         } else {
 454                                 $context = NULL;
 455                         }
 456
 457                         $old_error = error_get_last();
 458
 459                         $data = @file_get_contents($url, false, $context);
 460
 461                         $fetch_last_content_type = false;  // reset if no type was sent from server
 462                         if (isset($http_response_header) && is_array($http_response_header)) {
 463                                 foreach ($http_response_header as $h) {
 464                                         if (substr(strtolower($h), 0, 13) == 'content-type:') {
 465                                                 $fetch_last_content_type = substr($h, 14);
 466                                                 // don't abort here b/c there might be more than one
 467                                                 // e.g. if we were being redirected -- last one is the right one
 468                                         }
 469
 470                                         if (substr(strtolower($h), 0, 7) == 'http/1.') {
 471                                                 $fetch_last_error_code = (int) substr($h, 9, 3);
 472                                         }
 473                                 }
 474                         }
 475
 476                         if (!$data) {
 477                                 $error = error_get_last();
 478
 479                                 if ($error['message'] != $old_error['message']) {
 480                                         $fetch_last_error = $error["message"];
 481                                 } else {
 482                                         $fetch_last_error = "HTTP Code: $fetch_last_error_code";
 483                                 }
 484                         }
 485                         return $data;
 486                 }
 487
 488         }
 489
 490         /**
 491          * Try to determine the favicon URL for a feed.
 492          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 493          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 494          *
 495          * @param string $url A feed or page URL
 496          * @access public
 497          * @return mixed The favicon URL, or false if none was found.
 498          */
 499         function get_favicon_url($url) {
 500
 501                 $favicon_url = false;
 502
 503                 if ($html = @fetch_file_contents($url)) {
 504
 505                         libxml_use_internal_errors(true);
 506
 507                         $doc = new DOMDocument();
 508                         $doc->loadHTML($html);
 509                         $xpath = new DOMXPath($doc);
 510
 511                         $base = $xpath->query('/html/head/base');
 512                         foreach ($base as $b) {
 513                                 $url = $b->getAttribute("href");
 514                                 break;
 515                         }
 516
 517                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 518                         if (count($entries) > 0) {
 519                                 foreach ($entries as $entry) {
 520                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 521                                         break;
 522                                 }
 523                         }
 524                 }
 525
 526                 if (!$favicon_url)
 527                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 528
 529                 return $favicon_url;
 530         } // function get_favicon_url
 531
 532         function check_feed_favicon($site_url, $feed) {
 533 #               print "FAVICON [$site_url]: $favicon_url\n";
 534
 535                 $icon_file = ICONS_DIR . "/$feed.ico";
 536
 537                 if (!file_exists($icon_file)) {
 538                         $favicon_url = get_favicon_url($site_url);
 539
 540                         if ($favicon_url) {
 541                                 // Limiting to "image" type misses those served with text/plain
 542                                 $contents = fetch_file_contents($favicon_url); // , "image");
 543
 544                                 if ($contents) {
 545                                         // Crude image type matching.
 546                                         // Patterns gleaned from the file(1) source code.
 547                                         if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
 548                                                 // 0       string  \000\000\001\000        MS Windows icon resource
 549                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
 550                                         }
 551                                         elseif (preg_match('/^GIF8/', $contents)) {
 552                                                 // 0       string          GIF8            GIF image data
 553                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
 554                                         }
 555                                         elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
 556                                                 // 0       string          \x89PNG\x0d\x0a\x1a\x0a         PNG image data
 557                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
 558                                         }
 559                                         elseif (preg_match('/^\xff\xd8/', $contents)) {
 560                                                 // 0       beshort         0xffd8          JPEG image data
 561                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
 562                                         }
 563                                         else {
 564                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
 565                                                 $contents = "";
 566                                         }
 567                                 }
 568
 569                                 if ($contents) {
 570                                         $fp = @fopen($icon_file, "w");
 571
 572                                         if ($fp) {
 573                                                 fwrite($fp, $contents);
 574                                                 fclose($fp);
 575                                                 chmod($icon_file, 0644);
 576                                         }
 577                                 }
 578                         }
 579             return $icon_file;
 580                 }
 581         }
 582
 583         function print_select($id, $default, $values, $attributes = "", $name = "") {
 584                 if (!$name) $name = $id;
 585
 586                 print "<select name=\"$name\" id=\"$id\" $attributes>";
 587                 foreach ($values as $v) {
 588                         if ($v == $default)
 589                                 $sel = "selected=\"1\"";
 590                          else
 591                                 $sel = "";
 592
 593                         $v = trim($v);
 594
 595                         print "<option value=\"$v\" $sel>$v</option>";
 596                 }
 597                 print "</select>";
 598         }
 599
 600         function print_select_hash($id, $default, $values, $attributes = "", $name = "") {
 601                 if (!$name) $name = $id;
 602
 603                 print "<select name=\"$name\" id='$id' $attributes>";
 604                 foreach (array_keys($values) as $v) {
 605                         if ($v == $default)
 606                                 $sel = 'selected="selected"';
 607                          else
 608                                 $sel = "";
 609
 610                         $v = trim($v);
 611
 612                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
 613                 }
 614
 615                 print "</select>";
 616         }
 617
 618         function print_radio($id, $default, $true_is, $values, $attributes = "") {
 619                 foreach ($values as $v) {
 620
 621                         if ($v == $default)
 622                                 $sel = "checked";
 623                          else
 624                                 $sel = "";
 625
 626                         if ($v == $true_is) {
 627                                 $sel .= " value=\"1\"";
 628                         } else {
 629                                 $sel .= " value=\"0\"";
 630                         }
 631
 632                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
 633                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 634
 635                 }
 636         }
 637
 638         function initialize_user_prefs($uid, $profile = false) {
 639
 640                 $uid = db_escape_string($uid);
 641
 642                 if (!$profile) {
 643                         $profile = "NULL";
 644                         $profile_qpart = "AND profile IS NULL";
 645                 } else {
 646                         $profile_qpart = "AND profile = '$profile'";
 647                 }
 648
 649                 if (get_schema_version() < 63) $profile_qpart = "";
 650
 651                 db_query("BEGIN");
 652
 653                 $result = db_query("SELECT pref_name,def_value FROM ttrss_prefs");
 654
 655                 $u_result = db_query("SELECT pref_name
 656                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
 657
 658                 $active_prefs = array();
 659
 660                 while ($line = db_fetch_assoc($u_result)) {
 661                         array_push($active_prefs, $line["pref_name"]);
 662                 }
 663
 664                 while ($line = db_fetch_assoc($result)) {
 665                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 666 //                              print "adding " . $line["pref_name"] . "<br>";
 667
 668                                 $line["def_value"] = db_escape_string($line["def_value"]);
 669                                 $line["pref_name"] = db_escape_string($line["pref_name"]);
 670
 671                                 if (get_schema_version() < 63) {
 672                                         db_query("INSERT INTO ttrss_user_prefs
 673                                                 (owner_uid,pref_name,value) VALUES
 674                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 675
 676                                 } else {
 677                                         db_query("INSERT INTO ttrss_user_prefs
 678                                                 (owner_uid,pref_name,value, profile) VALUES
 679                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
 680                                 }
 681
 682                         }
 683                 }
 684
 685                 db_query("COMMIT");
 686
 687         }
 688
 689         function get_ssl_certificate_id() {
 690                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
 691                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
 692                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
 693                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
 694                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
 695                 }
 696                 if ($_SERVER["SSL_CLIENT_M_SERIAL"]) {
 697                         return sha1($_SERVER["SSL_CLIENT_M_SERIAL"] .
 698                                 $_SERVER["SSL_CLIENT_V_START"] .
 699                                 $_SERVER["SSL_CLIENT_V_END"] .
 700                                 $_SERVER["SSL_CLIENT_S_DN"]);
 701                 }
 702                 return "";
 703         }
 704
 705         function authenticate_user($login, $password, $check_only = false) {
 706
 707                 if (!SINGLE_USER_MODE) {
 708                         $user_id = false;
 709
 710                         foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) {
 711
 712                                 $user_id = (int) $plugin->authenticate($login, $password);
 713
 714                                 if ($user_id) {
 715                                         $_SESSION["auth_module"] = strtolower(get_class($plugin));
 716                                         break;
 717                                 }
 718                         }
 719
 720                         if ($user_id && !$check_only) {
 721                                 @session_start();
 722
 723                                 $_SESSION["uid"] = $user_id;
 724                                 $_SESSION["version"] = VERSION_STATIC;
 725
 726                                 $result = db_query("SELECT login,access_level,pwd_hash FROM ttrss_users
 727                                         WHERE id = '$user_id'");
 728
 729                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
 730                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 731                                 $_SESSION["csrf_token"] = uniqid_short();
 732
 733                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 734                                         $_SESSION["uid"]);
 735
 736                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 737                                 $_SESSION["user_agent"] = sha1($_SERVER['HTTP_USER_AGENT']);
 738                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
 739
 740                                 $_SESSION["last_version_check"] = time();
 741
 742                                 initialize_user_prefs($_SESSION["uid"]);
 743
 744                                 return true;
 745                         }
 746
 747                         return false;
 748
 749                 } else {
 750
 751                         $_SESSION["uid"] = 1;
 752                         $_SESSION["name"] = "admin";
 753                         $_SESSION["access_level"] = 10;
 754
 755                         $_SESSION["hide_hello"] = true;
 756                         $_SESSION["hide_logout"] = true;
 757
 758                         $_SESSION["auth_module"] = false;
 759
 760                         if (!$_SESSION["csrf_token"]) {
 761                                 $_SESSION["csrf_token"] = uniqid_short();
 762                         }
 763
 764                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 765
 766                         initialize_user_prefs($_SESSION["uid"]);
 767
 768                         return true;
 769                 }
 770         }
 771
 772         function make_password($length = 8) {
 773
 774                 $password = "";
 775                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
 776
 777         $i = 0;
 778
 779                 while ($i < $length) {
 780                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 781
 782                         if (!strstr($password, $char)) {
 783                                 $password .= $char;
 784                                 $i++;
 785                         }
 786                 }
 787                 return $password;
 788         }
 789
 790         // this is called after user is created to initialize default feeds, labels
 791         // or whatever else
 792
 793         // user preferences are checked on every login, not here
 794
 795         function initialize_user($uid) {
 796
 797                 db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
 798                         values ('$uid', 'Tiny Tiny RSS: Forum',
 799                                 'http://tt-rss.org/forum/rss.php')");
 800         }
 801
 802         function logout_user() {
 803                 session_destroy();
 804                 if (isset($_COOKIE[session_name()])) {
 805                    setcookie(session_name(), '', time()-42000, '/');
 806                 }
 807         }
 808
 809         function validate_csrf($csrf_token) {
 810                 return $csrf_token == $_SESSION['csrf_token'];
 811         }
 812
 813         function load_user_plugins($owner_uid) {
 814                 if ($owner_uid && SCHEMA_VERSION >= 100) {
 815                         $plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
 816
 817                         PluginHost::getInstance()->load($plugins, PluginHost::KIND_USER, $owner_uid);
 818
 819                         if (get_schema_version() > 100) {
 820                                 PluginHost::getInstance()->load_data();
 821                         }
 822                 }
 823         }
 824
 825         function login_sequence() {
 826                 if (SINGLE_USER_MODE) {
 827                         @session_start();
 828                         authenticate_user("admin", null);
 829                         startup_gettext();
 830                         load_user_plugins($_SESSION["uid"]);
 831                 } else {
 832                         if (!validate_session()) $_SESSION["uid"] = false;
 833
 834                         if (!$_SESSION["uid"]) {
 835
 836                                 if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) {
 837                                     $_SESSION["ref_schema_version"] = get_schema_version(true);
 838                                 } else {
 839                                          authenticate_user(null, null, true);
 840                                 }
 841
 842                                 if (!$_SESSION["uid"]) {
 843                                         @session_destroy();
 844                                         setcookie(session_name(), '', time()-42000, '/');
 845
 846                                         render_login_form();
 847                                         exit;
 848                                 }
 849
 850                         } else {
 851                                 /* bump login timestamp */
 852                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 853                                         $_SESSION["uid"]);
 854                                 $_SESSION["last_login_update"] = time();
 855                         }
 856
 857                         if ($_SESSION["uid"]) {
 858                                 startup_gettext();
 859                                 load_user_plugins($_SESSION["uid"]);
 860
 861                                 /* cleanup ccache */
 862
 863                                 db_query("DELETE FROM ttrss_counters_cache WHERE owner_uid = ".
 864                                         $_SESSION["uid"] . " AND
 865                                                 (SELECT COUNT(id) FROM ttrss_feeds WHERE
 866                                                         ttrss_feeds.id = feed_id) = 0");
 867
 868                                 db_query("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ".
 869                                         $_SESSION["uid"] . " AND
 870                                                 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
 871                                                         ttrss_feed_categories.id = feed_id) = 0");
 872
 873                         }
 874
 875                 }
 876         }
 877
 878         function truncate_string($str, $max_len, $suffix = '&hellip;') {
 879                 if (mb_strlen($str, "utf-8") > $max_len) {
 880                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
 881                 } else {
 882                         return $str;
 883                 }
 884         }
 885
 886         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
 887
 888                 try {
 889                         $source_tz = new DateTimeZone($source_tz);
 890                 } catch (Exception $e) {
 891                         $source_tz = new DateTimeZone('UTC');
 892                 }
 893
 894                 try {
 895                         $dest_tz = new DateTimeZone($dest_tz);
 896                 } catch (Exception $e) {
 897                         $dest_tz = new DateTimeZone('UTC');
 898                 }
 899
 900                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
 901                 return $dt->format('U') + $dest_tz->getOffset($dt);
 902         }
 903
 904         function make_local_datetime($timestamp, $long, $owner_uid = false,
 905                                         $no_smart_dt = false, $eta_min = false) {
 906
 907                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 908                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
 909
 910                 global $utc_tz;
 911                 global $user_tz;
 912
 913                 if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
 914
 915                 $timestamp = substr($timestamp, 0, 19);
 916
 917                 # We store date in UTC internally
 918                 $dt = new DateTime($timestamp, $utc_tz);
 919
 920                 $user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
 921
 922                 if ($user_tz_string != 'Automatic') {
 923
 924                         try {
 925                                 if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
 926                         } catch (Exception $e) {
 927                                 $user_tz = $utc_tz;
 928                         }
 929
 930                         $tz_offset = $user_tz->getOffset($dt);
 931                 } else {
 932                         $tz_offset = (int) -$_SESSION["clientTzOffset"];
 933                 }
 934
 935                 $user_timestamp = $dt->format('U') + $tz_offset;
 936
 937                 if (!$no_smart_dt) {
 938                         return smart_date_time($user_timestamp,
 939                                 $tz_offset, $owner_uid, $eta_min);
 940                 } else {
 941                         if ($long)
 942                                 $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
 943                         else
 944                                 $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
 945
 946                         return date($format, $user_timestamp);
 947                 }
 948         }
 949
 950         function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false, $eta_min = false) {
 951                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 952
 953                 if ($eta_min && time() + $tz_offset - $timestamp < 3600) {
 954                         return T_sprintf("%d min", date("i", time() + $tz_offset - $timestamp));
 955                 } else if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
 956                         return date("G:i", $timestamp);
 957                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
 958                         $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
 959                         return date($format, $timestamp);
 960                 } else {
 961                         $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
 962                         return date($format, $timestamp);
 963                 }
 964         }
 965
 966         function sql_bool_to_bool($s) {
 967                 if ($s == "t" || $s == "1" || strtolower($s) == "true") {
 968                         return true;
 969                 } else {
 970                         return false;
 971                 }
 972         }
 973
 974         function bool_to_sql_bool($s) {
 975                 if ($s) {
 976                         return "true";
 977                 } else {
 978                         return "false";
 979                 }
 980         }
 981
 982         // Session caching removed due to causing wrong redirects to upgrade
 983         // script when get_schema_version() is called on an obsolete session
 984         // created on a previous schema version.
 985         function get_schema_version($nocache = false) {
 986                 global $schema_version;
 987
 988                 if (!$schema_version && !$nocache) {
 989                         $result = db_query("SELECT schema_version FROM ttrss_version");
 990                         $version = db_fetch_result($result, 0, "schema_version");
 991                         $schema_version = $version;
 992                         return $version;
 993                 } else {
 994                         return $schema_version;
 995                 }
 996         }
 997
 998         function sanity_check() {
 999                 require_once 'errors.php';
1000                 global $ERRORS;
1001
1002                 $error_code = 0;
1003                 $schema_version = get_schema_version(true);
1004
1005                 if ($schema_version != SCHEMA_VERSION) {
1006                         $error_code = 5;
1007                 }
1008
1009                 if (DB_TYPE == "mysql") {
1010                         $result = db_query("SELECT true", false);
1011                         if (db_num_rows($result) != 1) {
1012                                 $error_code = 10;
1013                         }
1014                 }
1015
1016                 if (db_escape_string("testTEST") != "testTEST") {
1017                         $error_code = 12;
1018                 }
1019
1020                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1021         }
1022
1023         function file_is_locked($filename) {
1024                 if (file_exists(LOCK_DIRECTORY . "/$filename")) {
1025                         if (function_exists('flock')) {
1026                                 $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1027                                 if ($fp) {
1028                                         if (flock($fp, LOCK_EX | LOCK_NB)) {
1029                                                 flock($fp, LOCK_UN);
1030                                                 fclose($fp);
1031                                                 return false;
1032                                         }
1033                                         fclose($fp);
1034                                         return true;
1035                                 } else {
1036                                         return false;
1037                                 }
1038                         }
1039                         return true; // consider the file always locked and skip the test
1040                 } else {
1041                         return false;
1042                 }
1043         }
1044
1045
1046         function make_lockfile($filename) {
1047                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1048
1049                 if ($fp && flock($fp, LOCK_EX | LOCK_NB)) {
1050                         $stat_h = fstat($fp);
1051                         $stat_f = stat(LOCK_DIRECTORY . "/$filename");
1052
1053                         if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
1054                                 if ($stat_h["ino"] != $stat_f["ino"] ||
1055                                                 $stat_h["dev"] != $stat_f["dev"]) {
1056
1057                                         return false;
1058                                 }
1059                         }
1060
1061                         if (function_exists('posix_getpid')) {
1062                                 fwrite($fp, posix_getpid() . "\n");
1063                         }
1064                         return $fp;
1065                 } else {
1066                         return false;
1067                 }
1068         }
1069
1070         function make_stampfile($filename) {
1071                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1072
1073                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1074                         fwrite($fp, time() . "\n");
1075                         flock($fp, LOCK_UN);
1076                         fclose($fp);
1077                         return true;
1078                 } else {
1079                         return false;
1080                 }
1081         }
1082
1083         function sql_random_function() {
1084                 if (DB_TYPE == "mysql") {
1085                         return "RAND()";
1086                 } else {
1087                         return "RANDOM()";
1088                 }
1089         }
1090
1091         function catchup_feed($feed, $cat_view, $owner_uid = false, $max_id = false, $mode = 'all') {
1092
1093                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1094
1095                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1096
1097                         // Todo: all this interval stuff needs some generic generator function
1098
1099                         $date_qpart = "false";
1100
1101                         switch ($mode) {
1102                         case "1day":
1103                                 if (DB_TYPE == "pgsql") {
1104                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
1105                                 } else {
1106                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
1107                                 }
1108                                 break;
1109                         case "1week":
1110                                 if (DB_TYPE == "pgsql") {
1111                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 week' ";
1112                                 } else {
1113                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 WEEK) ";
1114                                 }
1115                                 break;
1116                         case "2week":
1117                                 if (DB_TYPE == "pgsql") {
1118                                         $date_qpart = "date_entered < NOW() - INTERVAL '2 week' ";
1119                                 } else {
1120                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 2 WEEK) ";
1121                                 }
1122                                 break;
1123                         default:
1124                                 $date_qpart = "true";
1125                         }
1126
1127                         if (is_numeric($feed)) {
1128                                 if ($cat_view) {
1129
1130                                         if ($feed >= 0) {
1131
1132                                                 if ($feed > 0) {
1133                                                         $children = getChildCategories($feed, $owner_uid);
1134                                                         array_push($children, $feed);
1135
1136                                                         $children = join(",", $children);
1137
1138                                                         $cat_qpart = "cat_id IN ($children)";
1139                                                 } else {
1140                                                         $cat_qpart = "cat_id IS NULL";
1141                                                 }
1142
1143                                                 db_query("UPDATE ttrss_user_entries
1144                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1145                                                                 (SELECT id FROM
1146                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1147                                                                                 AND owner_uid = $owner_uid AND unread = true AND feed_id IN
1148                                                                                         (SELECT id FROM ttrss_feeds WHERE $cat_qpart) AND $date_qpart) as tmp)");
1149
1150                                         } else if ($feed == -2) {
1151
1152                                                 db_query("UPDATE ttrss_user_entries
1153                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1154                                                                 FROM ttrss_user_labels2, ttrss_entries WHERE article_id = ref_id AND id = ref_id AND $date_qpart) > 0
1155                                                                 AND unread = true AND owner_uid = $owner_uid");
1156                                         }
1157
1158                                 } else if ($feed > 0) {
1159
1160                                         db_query("UPDATE ttrss_user_entries
1161                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1162                                                         (SELECT id FROM
1163                                                                 (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1164                                                                         AND owner_uid = $owner_uid AND unread = true AND feed_id = $feed AND $date_qpart) as tmp)");
1165
1166                                 } else if ($feed < 0 && $feed > LABEL_BASE_INDEX) { // special, like starred
1167
1168                                         if ($feed == -1) {
1169                                                 db_query("UPDATE ttrss_user_entries
1170                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1171                                                                 (SELECT id FROM
1172                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1173                                                                                 AND owner_uid = $owner_uid AND unread = true AND marked = true AND $date_qpart) as tmp)");
1174                                         }
1175
1176                                         if ($feed == -2) {
1177                                                 db_query("UPDATE ttrss_user_entries
1178                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1179                                                                 (SELECT id FROM
1180                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1181                                                                                 AND owner_uid = $owner_uid AND unread = true AND published = true AND $date_qpart) as tmp)");
1182                                         }
1183
1184                                         if ($feed == -3) {
1185
1186                                                 $intl = get_pref("FRESH_ARTICLE_MAX_AGE");
1187
1188                                                 if (DB_TYPE == "pgsql") {
1189                                                         $match_part = "date_entered > NOW() - INTERVAL '$intl hour' ";
1190                                                 } else {
1191                                                         $match_part = "date_entered > DATE_SUB(NOW(),
1192                                                                 INTERVAL $intl HOUR) ";
1193                                                 }
1194
1195                                                 db_query("UPDATE ttrss_user_entries
1196                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1197                                                                 (SELECT id FROM
1198                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1199                                                                                 AND owner_uid = $owner_uid AND score >= 0 AND unread = true AND $date_qpart AND $match_part) as tmp)");
1200                                         }
1201
1202                                         if ($feed == -4) {
1203                                                 db_query("UPDATE ttrss_user_entries
1204                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1205                                                                 (SELECT id FROM
1206                                                                         (SELECT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1207                                                                                 AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1208                                         }
1209
1210                                 } else if ($feed < LABEL_BASE_INDEX) { // label
1211
1212                                         $label_id = feed_to_label_id($feed);
1213
1214                                         db_query("UPDATE ttrss_user_entries
1215                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1216                                                         (SELECT id FROM
1217                                                                 (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_user_labels2 WHERE ref_id = id
1218                                                                         AND label_id = '$label_id' AND ref_id = article_id
1219                                                                         AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1220
1221                                 }
1222
1223                                 ccache_update($feed, $owner_uid, $cat_view);
1224
1225                         } else { // tag
1226                                 db_query("UPDATE ttrss_user_entries
1227                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1228                                                 (SELECT id FROM
1229                                                         (SELECT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_tags WHERE ref_id = ttrss_entries.id
1230                                                                 AND post_int_id = int_id AND tag_name = '$feed'
1231                                                                 AND ttrss_user_entries.owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1232
1233                         }
1234         }
1235
1236         function getAllCounters() {
1237                 $data = getGlobalCounters();
1238
1239                 $data = array_merge($data, getVirtCounters());
1240                 $data = array_merge($data, getLabelCounters());
1241                 $data = array_merge($data, getFeedCounters());
1242                 $data = array_merge($data, getCategoryCounters());
1243
1244                 return $data;
1245         }
1246
1247         function getCategoryTitle($cat_id) {
1248
1249                 if ($cat_id == -1) {
1250                         return __("Special");
1251                 } else if ($cat_id == -2) {
1252                         return __("Labels");
1253                 } else {
1254
1255                         $result = db_query("SELECT title FROM ttrss_feed_categories WHERE
1256                                 id = '$cat_id'");
1257
1258                         if (db_num_rows($result) == 1) {
1259                                 return db_fetch_result($result, 0, "title");
1260                         } else {
1261                                 return __("Uncategorized");
1262                         }
1263                 }
1264         }
1265
1266
1267         function getCategoryCounters() {
1268                 $ret_arr = array();
1269
1270                 /* Labels category */
1271
1272                 $cv = array("id" => -2, "kind" => "cat",
1273                         "counter" => getCategoryUnread(-2));
1274
1275                 array_push($ret_arr, $cv);
1276
1277                 $result = db_query("SELECT id AS cat_id, value AS unread,
1278                         (SELECT COUNT(id) FROM ttrss_feed_categories AS c2
1279                                 WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
1280                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
1281                         WHERE ttrss_cat_counters_cache.feed_id = id AND
1282                         ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid AND
1283                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1284
1285                 while ($line = db_fetch_assoc($result)) {
1286                         $line["cat_id"] = (int) $line["cat_id"];
1287
1288                         if ($line["num_children"] > 0) {
1289                                 $child_counter = getCategoryChildrenUnread($line["cat_id"], $_SESSION["uid"]);
1290                         } else {
1291                                 $child_counter = 0;
1292                         }
1293
1294                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
1295                                 "counter" => $line["unread"] + $child_counter);
1296
1297                         array_push($ret_arr, $cv);
1298                 }
1299
1300                 /* Special case: NULL category doesn't actually exist in the DB */
1301
1302                 $cv = array("id" => 0, "kind" => "cat",
1303                         "counter" => (int) ccache_find(0, $_SESSION["uid"], true));
1304
1305                 array_push($ret_arr, $cv);
1306
1307                 return $ret_arr;
1308         }
1309
1310         // only accepts real cats (>= 0)
1311         function getCategoryChildrenUnread($cat, $owner_uid = false) {
1312                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1313
1314                 $result = db_query("SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
1315                                 AND owner_uid = $owner_uid");
1316
1317                 $unread = 0;
1318
1319                 while ($line = db_fetch_assoc($result)) {
1320                         $unread += getCategoryUnread($line["id"], $owner_uid);
1321                         $unread += getCategoryChildrenUnread($line["id"], $owner_uid);
1322                 }
1323
1324                 return $unread;
1325         }
1326
1327         function getCategoryUnread($cat, $owner_uid = false) {
1328
1329                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1330
1331                 if ($cat >= 0) {
1332
1333                         if ($cat != 0) {
1334                                 $cat_query = "cat_id = '$cat'";
1335                         } else {
1336                                 $cat_query = "cat_id IS NULL";
1337                         }
1338
1339                         $result = db_query("SELECT id FROM ttrss_feeds WHERE $cat_query
1340                                         AND owner_uid = " . $owner_uid);
1341
1342                         $cat_feeds = array();
1343                         while ($line = db_fetch_assoc($result)) {
1344                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
1345                         }
1346
1347                         if (count($cat_feeds) == 0) return 0;
1348
1349                         $match_part = implode(" OR ", $cat_feeds);
1350
1351                         $result = db_query("SELECT COUNT(int_id) AS unread
1352                                 FROM ttrss_user_entries
1353                                 WHERE   unread = true AND ($match_part)
1354                                 AND owner_uid = " . $owner_uid);
1355
1356                         $unread = 0;
1357
1358                         # this needs to be rewritten
1359                         while ($line = db_fetch_assoc($result)) {
1360                                 $unread += $line["unread"];
1361                         }
1362
1363                         return $unread;
1364                 } else if ($cat == -1) {
1365                         return getFeedUnread(-1) + getFeedUnread(-2) + getFeedUnread(-3) + getFeedUnread(0);
1366                 } else if ($cat == -2) {
1367
1368                         $result = db_query("
1369                                 SELECT COUNT(unread) AS unread FROM
1370                                         ttrss_user_entries, ttrss_user_labels2
1371                                 WHERE article_id = ref_id AND unread = true
1372                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
1373
1374                         $unread = db_fetch_result($result, 0, "unread");
1375
1376                         return $unread;
1377
1378                 }
1379         }
1380
1381         function getFeedUnread($feed, $is_cat = false) {
1382                 return getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]);
1383         }
1384
1385         function getLabelUnread($label_id, $owner_uid = false) {
1386                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1387
1388                 $result = db_query("SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
1389                         WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
1390
1391                 if (db_num_rows($result) != 0) {
1392                         return db_fetch_result($result, 0, "unread");
1393                 } else {
1394                         return 0;
1395                 }
1396         }
1397
1398         function getFeedArticles($feed, $is_cat = false, $unread_only = false,
1399                 $owner_uid = false) {
1400
1401                 $n_feed = (int) $feed;
1402                 $need_entries = false;
1403
1404                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1405
1406                 if ($unread_only) {
1407                         $unread_qpart = "unread = true";
1408                 } else {
1409                         $unread_qpart = "true";
1410                 }
1411
1412                 if ($is_cat) {
1413                         return getCategoryUnread($n_feed, $owner_uid);
1414                 } else if ($n_feed == -6) {
1415                         return 0;
1416                 } else if ($feed != "0" && $n_feed == 0) {
1417
1418                         $feed = db_escape_string($feed);
1419
1420                         $result = db_query("SELECT SUM((SELECT COUNT(int_id)
1421                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1422                                         AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
1423                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1424                         return db_fetch_result($result, 0, "count");
1425
1426                 } else if ($n_feed == -1) {
1427                         $match_part = "marked = true";
1428                 } else if ($n_feed == -2) {
1429                         $match_part = "published = true";
1430                 } else if ($n_feed == -3) {
1431                         $match_part = "unread = true AND score >= 0";
1432
1433                         $intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
1434
1435                         if (DB_TYPE == "pgsql") {
1436                                 $match_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
1437                         } else {
1438                                 $match_part .= " AND date_entered > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1439                         }
1440
1441                         $need_entries = true;
1442
1443                 } else if ($n_feed == -4) {
1444                         $match_part = "true";
1445                 } else if ($n_feed >= 0) {
1446
1447                         if ($n_feed != 0) {
1448                                 $match_part = "feed_id = '$n_feed'";
1449                         } else {
1450                                 $match_part = "feed_id IS NULL";
1451                         }
1452
1453                 } else if ($feed < LABEL_BASE_INDEX) {
1454
1455                         $label_id = feed_to_label_id($feed);
1456
1457                         return getLabelUnread($label_id, $owner_uid);
1458
1459                 }
1460
1461                 if ($match_part) {
1462
1463                         if ($need_entries) {
1464                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
1465                                 $from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
1466                         } else {
1467                                 $from_qpart = "ttrss_user_entries";
1468                                 $from_where = "";
1469                         }
1470
1471                         $query = "SELECT count(int_id) AS unread
1472                                 FROM $from_qpart WHERE
1473                                 $unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1474
1475                         //echo "[$feed/$query]\n";
1476
1477                         $result = db_query($query);
1478
1479                 } else {
1480
1481                         $result = db_query("SELECT COUNT(post_int_id) AS unread
1482                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1483                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1484                                 AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
1485                 }
1486
1487                 $unread = db_fetch_result($result, 0, "unread");
1488
1489                 return $unread;
1490         }
1491
1492         function getGlobalUnread($user_id = false) {
1493
1494                 if (!$user_id) {
1495                         $user_id = $_SESSION["uid"];
1496                 }
1497
1498                 $result = db_query("SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1499                         WHERE owner_uid = '$user_id' AND feed_id > 0");
1500
1501                 $c_id = db_fetch_result($result, 0, "c_id");
1502
1503                 return $c_id;
1504         }
1505
1506         function getGlobalCounters($global_unread = -1) {
1507                 $ret_arr = array();
1508
1509                 if ($global_unread == -1) {
1510                         $global_unread = getGlobalUnread();
1511                 }
1512
1513                 $cv = array("id" => "global-unread",
1514                         "counter" => (int) $global_unread);
1515
1516                 array_push($ret_arr, $cv);
1517
1518                 $result = db_query("SELECT COUNT(id) AS fn FROM
1519                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1520
1521                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1522
1523                 $cv = array("id" => "subscribed-feeds",
1524                         "counter" => (int) $subscribed_feeds);
1525
1526                 array_push($ret_arr, $cv);
1527
1528                 return $ret_arr;
1529         }
1530
1531         function getVirtCounters() {
1532
1533                 $ret_arr = array();
1534
1535                 for ($i = 0; $i >= -4; $i--) {
1536
1537                         $count = getFeedUnread($i);
1538
1539                         if ($i == 0 || $i == -1 || $i == -2)
1540                                 $auxctr = getFeedArticles($i, false);
1541                         else
1542                                 $auxctr = 0;
1543
1544                         $cv = array("id" => $i,
1545                                 "counter" => (int) $count,
1546                                 "auxcounter" => $auxctr);
1547
1548 //                      if (get_pref('EXTENDED_FEEDLIST'))
1549 //                              $cv["xmsg"] = getFeedArticles($i)." ".__("total");
1550
1551                         array_push($ret_arr, $cv);
1552                 }
1553
1554                 $feeds = PluginHost::getInstance()->get_feeds(-1);
1555
1556                 if (is_array($feeds)) {
1557                         foreach ($feeds as $feed) {
1558                                 $cv = array("id" => PluginHost::pfeed_to_feed_id($feed['id']),
1559                                         "counter" => $feed['sender']->get_unread($feed['id']));
1560
1561                                 if (method_exists($feed['sender'], 'get_total'))
1562                                         $cv["auxcounter"] = $feed['sender']->get_total($feed['id']);
1563
1564                                 array_push($ret_arr, $cv);
1565                         }
1566                 }
1567
1568                 return $ret_arr;
1569         }
1570
1571         function getLabelCounters($descriptions = false) {
1572
1573                 $ret_arr = array();
1574
1575                 $owner_uid = $_SESSION["uid"];
1576
1577                 $result = db_query("SELECT id,caption,SUM(CASE WHEN u1.unread = true THEN 1 ELSE 0 END) AS unread, COUNT(u1.unread) AS total
1578                         FROM ttrss_labels2 LEFT JOIN ttrss_user_labels2 ON
1579                                 (ttrss_labels2.id = label_id)
1580                                 LEFT JOIN ttrss_user_entries AS u1 ON u1.ref_id = article_id
1581                                 WHERE ttrss_labels2.owner_uid = $owner_uid GROUP BY ttrss_labels2.id,
1582                                         ttrss_labels2.caption");
1583
1584                 while ($line = db_fetch_assoc($result)) {
1585
1586                         $id = label_to_feed_id($line["id"]);
1587
1588                         $cv = array("id" => $id,
1589                                 "counter" => (int) $line["unread"],
1590                                 "auxcounter" => (int) $line["total"]);
1591
1592                         if ($descriptions)
1593                                 $cv["description"] = $line["caption"];
1594
1595                         array_push($ret_arr, $cv);
1596                 }
1597
1598                 return $ret_arr;
1599         }
1600
1601         function getFeedCounters($active_feed = false) {
1602
1603                 $ret_arr = array();
1604
1605                 $query = "SELECT ttrss_feeds.id,
1606                                 ttrss_feeds.title,
1607                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1608                                 last_error, value AS count
1609                         FROM ttrss_feeds, ttrss_counters_cache
1610                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1611                                 AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
1612                                 AND ttrss_counters_cache.feed_id = id";
1613
1614                 $result = db_query($query);
1615
1616                 while ($line = db_fetch_assoc($result)) {
1617
1618                         $id = $line["id"];
1619                         $count = $line["count"];
1620                         $last_error = htmlspecialchars($line["last_error"]);
1621
1622                         $last_updated = make_local_datetime($line['last_updated'], false);
1623
1624                         $has_img = feed_has_icon($id);
1625
1626                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1627                                 $last_updated = '';
1628
1629                         $cv = array("id" => $id,
1630                                 "updated" => $last_updated,
1631                                 "counter" => (int) $count,
1632                                 "has_img" => (int) $has_img);
1633
1634                         if ($last_error)
1635                                 $cv["error"] = $last_error;
1636
1637 //                      if (get_pref('EXTENDED_FEEDLIST'))
1638 //                              $cv["xmsg"] = getFeedArticles($id)." ".__("total");
1639
1640                         if ($active_feed && $id == $active_feed)
1641                                 $cv["title"] = truncate_string($line["title"], 30);
1642
1643                         array_push($ret_arr, $cv);
1644
1645                 }
1646
1647                 return $ret_arr;
1648         }
1649
1650         function get_pgsql_version() {
1651                 $result = db_query("SELECT version() AS version");
1652                 $version = explode(" ", db_fetch_result($result, 0, "version"));
1653                 return $version[1];
1654         }
1655
1656         /**
1657          * @return array (code => Status code, message => error message if available)
1658          *
1659          *                 0 - OK, Feed already exists
1660          *                 1 - OK, Feed added
1661          *                 2 - Invalid URL
1662          *                 3 - URL content is HTML, no feeds available
1663          *                 4 - URL content is HTML which contains multiple feeds.
1664          *                     Here you should call extractfeedurls in rpc-backend
1665          *                     to get all possible feeds.
1666          *                 5 - Couldn't download the URL content.
1667          *                 6 - Content is an invalid XML.
1668          */
1669         function subscribe_to_feed($url, $cat_id = 0,
1670                         $auth_login = '', $auth_pass = '') {
1671
1672                 global $fetch_last_error;
1673
1674                 require_once "include/rssfuncs.php";
1675
1676                 $url = fix_url($url);
1677
1678                 if (!$url || !validate_feed_url($url)) return array("code" => 2);
1679
1680                 $contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
1681
1682                 if (!$contents) {
1683                         return array("code" => 5, "message" => $fetch_last_error);
1684                 }
1685
1686                 foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SUBSCRIBE_FEED) as $plugin) {
1687                         $contents = $plugin->hook_subscribe_feed($contents, $url, $auth_login, $auth_pass);
1688                 }
1689
1690                 if (is_html($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                 if ($cat_id == "0" || !$cat_id) {
1703                         $cat_qpart = "NULL";
1704                 } else {
1705                         $cat_qpart = "'$cat_id'";
1706                 }
1707
1708                 $result = db_query(
1709                         "SELECT id FROM ttrss_feeds
1710                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1711
1712                 if (strlen(FEED_CRYPT_KEY) > 0) {
1713                         require_once "crypt.php";
1714                         $auth_pass = substr(encrypt_string($auth_pass), 0, 250);
1715                         $auth_pass_encrypted = 'true';
1716                 } else {
1717                         $auth_pass_encrypted = 'false';
1718                 }
1719
1720                 $auth_pass = db_escape_string($auth_pass);
1721
1722                 if (db_num_rows($result) == 0) {
1723                         $result = db_query(
1724                                 "INSERT INTO ttrss_feeds
1725                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method,auth_pass_encrypted)
1726                                 VALUES ('".$_SESSION["uid"]."', '$url',
1727                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0, $auth_pass_encrypted)");
1728
1729                         $result = db_query(
1730                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1731                                         AND owner_uid = " . $_SESSION["uid"]);
1732
1733                         $feed_id = db_fetch_result($result, 0, "id");
1734
1735                         if ($feed_id) {
1736                                 set_basic_feed_info($feed_id);
1737                         }
1738
1739                         return array("code" => 1);
1740                 } else {
1741                         return array("code" => 0);
1742                 }
1743         }
1744
1745         function print_feed_select($id, $default_id = "",
1746                 $attributes = "", $include_all_feeds = true,
1747                 $root_id = false, $nest_level = 0) {
1748
1749                 if (!$root_id) {
1750                         print "<select id=\"$id\" name=\"$id\" $attributes>";
1751                         if ($include_all_feeds) {
1752                                 $is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
1753                                 print "<option $is_selected value=\"0\">".__('All feeds')."</option>";
1754                         }
1755                 }
1756
1757                 if (get_pref('ENABLE_FEED_CATS')) {
1758
1759                         if ($root_id)
1760                                 $parent_qpart = "parent_cat = '$root_id'";
1761                         else
1762                                 $parent_qpart = "parent_cat IS NULL";
1763
1764                         $result = db_query("SELECT id,title,
1765                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1766                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1767                                 FROM ttrss_feed_categories
1768                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1769
1770                         while ($line = db_fetch_assoc($result)) {
1771
1772                                 for ($i = 0; $i < $nest_level; $i++)
1773                                         $line["title"] = " - " . $line["title"];
1774
1775                                 $is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
1776
1777                                 printf("<option $is_selected value='CAT:%d'>%s</option>",
1778                                         $line["id"], htmlspecialchars($line["title"]));
1779
1780                                 if ($line["num_children"] > 0)
1781                                         print_feed_select($id, $default_id, $attributes,
1782                                                 $include_all_feeds, $line["id"], $nest_level+1);
1783
1784                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1785                                         WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1786
1787                                 while ($fline = db_fetch_assoc($feed_result)) {
1788                                         $is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
1789
1790                                         $fline["title"] = " + " . $fline["title"];
1791
1792                                         for ($i = 0; $i < $nest_level; $i++)
1793                                                 $fline["title"] = " - " . $fline["title"];
1794
1795                                         printf("<option $is_selected value='%d'>%s</option>",
1796                                                 $fline["id"], htmlspecialchars($fline["title"]));
1797                                 }
1798                         }
1799
1800                         if (!$root_id) {
1801                                 $default_is_cat = ($default_id == "CAT:0");
1802                                 $is_selected = $default_is_cat ? "selected=\"1\"" : "";
1803
1804                                 printf("<option $is_selected value='CAT:0'>%s</option>",
1805                                         __("Uncategorized"));
1806
1807                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1808                                         WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1809
1810                                 while ($fline = db_fetch_assoc($feed_result)) {
1811                                         $is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
1812
1813                                         $fline["title"] = " + " . $fline["title"];
1814
1815                                         for ($i = 0; $i < $nest_level; $i++)
1816                                                 $fline["title"] = " - " . $fline["title"];
1817
1818                                         printf("<option $is_selected value='%d'>%s</option>",
1819                                                 $fline["id"], htmlspecialchars($fline["title"]));
1820                                 }
1821                         }
1822
1823                 } else {
1824                         $result = db_query("SELECT id,title FROM ttrss_feeds
1825                                 WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1826
1827                         while ($line = db_fetch_assoc($result)) {
1828
1829                                 $is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
1830
1831                                 printf("<option $is_selected value='%d'>%s</option>",
1832                                         $line["id"], htmlspecialchars($line["title"]));
1833                         }
1834                 }
1835
1836                 if (!$root_id) {
1837                         print "</select>";
1838                 }
1839         }
1840
1841         function print_feed_cat_select($id, $default_id,
1842                 $attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
1843
1844                         if (!$root_id) {
1845                                         print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1846                         }
1847
1848                         if ($root_id)
1849                                 $parent_qpart = "parent_cat = '$root_id'";
1850                         else
1851                                 $parent_qpart = "parent_cat IS NULL";
1852
1853                         $result = db_query("SELECT id,title,
1854                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1855                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1856                                 FROM ttrss_feed_categories
1857                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1858
1859                         while ($line = db_fetch_assoc($result)) {
1860                                 if ($line["id"] == $default_id) {
1861                                         $is_selected = "selected=\"1\"";
1862                                 } else {
1863                                         $is_selected = "";
1864                                 }
1865
1866                                 for ($i = 0; $i < $nest_level; $i++)
1867                                         $line["title"] = " - " . $line["title"];
1868
1869                                 if ($line["title"])
1870                                         printf("<option $is_selected value='%d'>%s</option>",
1871                                                 $line["id"], htmlspecialchars($line["title"]));
1872
1873                                 if ($line["num_children"] > 0)
1874                                         print_feed_cat_select($id, $default_id, $attributes,
1875                                                 $include_all_cats, $line["id"], $nest_level+1);
1876                         }
1877
1878                         if (!$root_id) {
1879                                 if ($include_all_cats) {
1880                                         if (db_num_rows($result) > 0) {
1881                                                 print "<option disabled=\"1\">--------</option>";
1882                                         }
1883
1884                                         if ($default_id == 0) {
1885                                                 $is_selected = "selected=\"1\"";
1886                                         } else {
1887                                                 $is_selected = "";
1888                                         }
1889
1890                                         print "<option $is_selected value=\"0\">".__('Uncategorized')."</option>";
1891                                 }
1892                                 print "</select>";
1893                         }
1894                 }
1895
1896         function checkbox_to_sql_bool($val) {
1897                 return ($val == "on") ? "true" : "false";
1898         }
1899
1900         function getFeedCatTitle($id) {
1901                 if ($id == -1) {
1902                         return __("Special");
1903                 } else if ($id < LABEL_BASE_INDEX) {
1904                         return __("Labels");
1905                 } else if ($id > 0) {
1906                         $result = db_query("SELECT ttrss_feed_categories.title
1907                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
1908                                         cat_id = ttrss_feed_categories.id");
1909                         if (db_num_rows($result) == 1) {
1910                                 return db_fetch_result($result, 0, "title");
1911                         } else {
1912                                 return __("Uncategorized");
1913                         }
1914                 } else {
1915                         return "getFeedCatTitle($id) failed";
1916                 }
1917
1918         }
1919
1920         function getFeedIcon($id) {
1921                 switch ($id) {
1922                 case 0:
1923                         return "images/archive.png";
1924                         break;
1925                 case -1:
1926                         return "images/star.png";
1927                         break;
1928                 case -2:
1929                         return "images/feed.png";
1930                         break;
1931                 case -3:
1932                         return "images/fresh.png";
1933                         break;
1934                 case -4:
1935                         return "images/folder.png";
1936                         break;
1937                 case -6:
1938                         return "images/time.png";
1939                         break;
1940                 default:
1941                         if ($id < LABEL_BASE_INDEX) {
1942                                 return "images/label.png";
1943                         } else {
1944                                 if (file_exists(ICONS_DIR . "/$id.ico"))
1945                                         return ICONS_URL . "/$id.ico";
1946                         }
1947                         break;
1948                 }
1949
1950                 return false;
1951         }
1952
1953         function getFeedTitle($id, $cat = false) {
1954                 if ($cat) {
1955                         return getCategoryTitle($id);
1956                 } else if ($id == -1) {
1957                         return __("Starred articles");
1958                 } else if ($id == -2) {
1959                         return __("Published articles");
1960                 } else if ($id == -3) {
1961                         return __("Fresh articles");
1962                 } else if ($id == -4) {
1963                         return __("All articles");
1964                 } else if ($id === 0 || $id === "0") {
1965                         return __("Archived articles");
1966                 } else if ($id == -6) {
1967                         return __("Recently read");
1968                 } else if ($id < LABEL_BASE_INDEX) {
1969                         $label_id = feed_to_label_id($id);
1970                         $result = db_query("SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
1971                         if (db_num_rows($result) == 1) {
1972                                 return db_fetch_result($result, 0, "caption");
1973                         } else {
1974                                 return "Unknown label ($label_id)";
1975                         }
1976
1977                 } else if (is_numeric($id) && $id > 0) {
1978                         $result = db_query("SELECT title FROM ttrss_feeds WHERE id = '$id'");
1979                         if (db_num_rows($result) == 1) {
1980                                 return db_fetch_result($result, 0, "title");
1981                         } else {
1982                                 return "Unknown feed ($id)";
1983                         }
1984                 } else {
1985                         return $id;
1986                 }
1987         }
1988
1989         function uniqid_short() {
1990                 return uniqid(base_convert(rand(), 10, 36));
1991         }
1992
1993         // TODO: less dumb splitting
1994         require_once "functions2.php";
1995
1996 ?>