include/functions.php

   1 <?php
   2         define('EXPECTED_CONFIG_VERSION', 26);
   3         define('SCHEMA_VERSION', 130);
   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         // separate test because this is included before sanity checks
  20         if (function_exists("mb_internal_encoding")) mb_internal_encoding("UTF-8");
  21
  22         date_default_timezone_set('UTC');
  23         if (defined('E_DEPRECATED')) {
  24                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
  25         } else {
  26                 error_reporting(E_ALL & ~E_NOTICE);
  27         }
  28
  29         require_once 'config.php';
  30
  31         /**
  32          * Define a constant if not already defined
  33          *
  34          * @param string $name The constant name.
  35          * @param mixed $value The constant value.
  36          * @access public
  37          * @return boolean True if defined successfully or not.
  38          */
  39         function define_default($name, $value) {
  40                 defined($name) or define($name, $value);
  41         }
  42
  43         ///// Some defaults that you can override in config.php //////
  44
  45         define_default('FEED_FETCH_TIMEOUT', 45);
  46         // How may seconds to wait for response when requesting feed from a site
  47         define_default('FEED_FETCH_NO_CACHE_TIMEOUT', 15);
  48         // How may seconds to wait for response when requesting feed from a
  49         // site when that feed wasn't cached before
  50         define_default('FILE_FETCH_TIMEOUT', 45);
  51         // Default timeout when fetching files from remote sites
  52         define_default('FILE_FETCH_CONNECT_TIMEOUT', 15);
  53         // How many seconds to wait for initial response from website when
  54         // fetching files from remote sites
  55
  56         if (DB_TYPE == "pgsql") {
  57                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  58         } else {
  59                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  60         }
  61
  62         /**
  63          * Return available translations names.
  64          *
  65          * @access public
  66          * @return array A array of available translations.
  67          */
  68         function get_translations() {
  69                 $tr = array(
  70                                         "auto"  => "Detect automatically",
  71                                         "ar_SA" => "العربيّة (Arabic)",
  72                                         "bg_BG" => "Bulgarian",
  73                                         "da_DA" => "Dansk",
  74                                         "ca_CA" => "Català",
  75                                         "cs_CZ" => "Česky",
  76                                         "en_US" => "English",
  77                                         "el_GR" => "Ελληνικά",
  78                                         "es_ES" => "Español (España)",
  79                                         "es_LA" => "Español",
  80                                         "de_DE" => "Deutsch",
  81                                         "fr_FR" => "Français",
  82                                         "hu_HU" => "Magyar (Hungarian)",
  83                                         "it_IT" => "Italiano",
  84                                         "ja_JP" => "日本語 (Japanese)",
  85                                         "lv_LV" => "Latviešu",
  86                                         "nb_NO" => "Norwegian bokmål",
  87                                         "nl_NL" => "Dutch",
  88                                         "pl_PL" => "Polski",
  89                                         "ru_RU" => "Русский",
  90                                         "pt_BR" => "Portuguese/Brazil",
  91                                         "pt_PT" => "Portuguese/Portugal",
  92                                         "zh_CN" => "Simplified Chinese",
  93                                         "zh_TW" => "Traditional Chinese",
  94                                         "sv_SE" => "Svenska",
  95                                         "fi_FI" => "Suomi",
  96                                         "tr_TR" => "Türkçe");
  97
  98                 return $tr;
  99         }
 100
 101         require_once "lib/accept-to-gettext.php";
 102         require_once "lib/gettext/gettext.inc";
 103
 104         function startup_gettext() {
 105
 106                 # Get locale from Accept-Language header
 107                 $lang = al2gt(array_keys(get_translations()), "text/html");
 108
 109                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
 110                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
 111                 }
 112
 113                 if ($_SESSION["uid"] && get_schema_version() >= 120) {
 114                         $pref_lang = get_pref("USER_LANGUAGE", $_SESSION["uid"]);
 115
 116                         if ($pref_lang && $pref_lang != 'auto') {
 117                                 $lang = $pref_lang;
 118                         }
 119                 }
 120
 121                 if ($lang) {
 122                         if (defined('LC_MESSAGES')) {
 123                                 _setlocale(LC_MESSAGES, $lang);
 124                         } else if (defined('LC_ALL')) {
 125                                 _setlocale(LC_ALL, $lang);
 126                         }
 127
 128                         _bindtextdomain("messages", "locale");
 129
 130                         _textdomain("messages");
 131                         _bind_textdomain_codeset("messages", "UTF-8");
 132                 }
 133         }
 134
 135         require_once 'db-prefs.php';
 136         require_once 'version.php';
 137         require_once 'ccache.php';
 138         require_once 'labels.php';
 139
 140         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 141         ini_set('user_agent', SELF_USER_AGENT);
 142
 143         require_once 'lib/pubsubhubbub/Publisher.php';
 144
 145         $schema_version = false;
 146
 147         function _debug_suppress($suppress) {
 148                 global $suppress_debugging;
 149
 150                 $suppress_debugging = $suppress;
 151         }
 152
 153         /**
 154          * Print a timestamped debug message.
 155          *
 156          * @param string $msg The debug message.
 157          * @return void
 158          */
 159         function _debug($msg, $show = true) {
 160                 global $suppress_debugging;
 161
 162                 //echo "[$suppress_debugging] $msg $show\n";
 163
 164                 if ($suppress_debugging) return false;
 165
 166                 $ts = strftime("%H:%M:%S", time());
 167                 if (function_exists('posix_getpid')) {
 168                         $ts = "$ts/" . posix_getpid();
 169                 }
 170
 171                 if ($show && !(defined('QUIET') && QUIET)) {
 172                         print "[$ts] $msg\n";
 173                 }
 174
 175                 if (defined('LOGFILE'))  {
 176                         $fp = fopen(LOGFILE, 'a+');
 177
 178                         if ($fp) {
 179                                 $locked = false;
 180
 181                                 if (function_exists("flock")) {
 182                                         $tries = 0;
 183
 184                                         // try to lock logfile for writing
 185                                         while ($tries < 5 && !$locked = flock($fp, LOCK_EX | LOCK_NB)) {
 186                                                 sleep(1);
 187                                                 ++$tries;
 188                                         }
 189
 190                                         if (!$locked) {
 191                                                 fclose($fp);
 192                                                 return;
 193                                         }
 194                                 }
 195
 196                                 fputs($fp, "[$ts] $msg\n");
 197
 198                                 if (function_exists("flock")) {
 199                                         flock($fp, LOCK_UN);
 200                                 }
 201
 202                                 fclose($fp);
 203                         }
 204                 }
 205
 206         } // function _debug
 207
 208         /**
 209          * Purge a feed old posts.
 210          *
 211          * @param mixed $link A database connection.
 212          * @param mixed $feed_id The id of the purged feed.
 213          * @param mixed $purge_interval Olderness of purged posts.
 214          * @param boolean $debug Set to True to enable the debug. False by default.
 215          * @access public
 216          * @return void
 217          */
 218         function purge_feed($feed_id, $purge_interval, $debug = false) {
 219
 220                 if (!$purge_interval) $purge_interval = feed_purge_interval($feed_id);
 221
 222                 $rows = -1;
 223
 224                 $result = db_query(
 225                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 226
 227                 $owner_uid = false;
 228
 229                 if (db_num_rows($result) == 1) {
 230                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 231                 }
 232
 233                 if ($purge_interval == -1 || !$purge_interval) {
 234                         if ($owner_uid) {
 235                                 ccache_update($feed_id, $owner_uid);
 236                         }
 237                         return;
 238                 }
 239
 240                 if (!$owner_uid) return;
 241
 242                 if (FORCE_ARTICLE_PURGE == 0) {
 243                         $purge_unread = get_pref("PURGE_UNREAD_ARTICLES",
 244                                 $owner_uid, false);
 245                 } else {
 246                         $purge_unread = true;
 247                         $purge_interval = FORCE_ARTICLE_PURGE;
 248                 }
 249
 250                 if (!$purge_unread) $query_limit = " unread = false AND ";
 251
 252                 if (DB_TYPE == "pgsql") {
 253                         $result = db_query("DELETE FROM ttrss_user_entries
 254                                 USING ttrss_entries
 255                                 WHERE ttrss_entries.id = ref_id AND
 256                                 marked = false AND
 257                                 feed_id = '$feed_id' AND
 258                                 $query_limit
 259                                 ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 260
 261                 } else {
 262
 263 /*                      $result = db_query("DELETE FROM ttrss_user_entries WHERE
 264                                 marked = false AND feed_id = '$feed_id' AND
 265                                 (SELECT date_updated FROM ttrss_entries WHERE
 266                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 267
 268                         $result = db_query("DELETE FROM ttrss_user_entries
 269                                 USING ttrss_user_entries, ttrss_entries
 270                                 WHERE ttrss_entries.id = ref_id AND
 271                                 marked = false AND
 272                                 feed_id = '$feed_id' AND
 273                                 $query_limit
 274                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 275                 }
 276
 277                 $rows = db_affected_rows($result);
 278
 279                 ccache_update($feed_id, $owner_uid);
 280
 281                 if ($debug) {
 282                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 283                 }
 284
 285                 return $rows;
 286         } // function purge_feed
 287
 288         function feed_purge_interval($feed_id) {
 289
 290                 $result = db_query("SELECT purge_interval, owner_uid FROM ttrss_feeds
 291                         WHERE id = '$feed_id'");
 292
 293                 if (db_num_rows($result) == 1) {
 294                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 295                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 296
 297                         if ($purge_interval == 0) $purge_interval = get_pref(
 298                                 'PURGE_OLD_DAYS', $owner_uid);
 299
 300                         return $purge_interval;
 301
 302                 } else {
 303                         return -1;
 304                 }
 305         }
 306
 307         function purge_orphans($do_output = false) {
 308
 309                 // purge orphaned posts in main content table
 310                 $result = db_query("DELETE FROM ttrss_entries WHERE
 311                         NOT EXISTS (SELECT ref_id FROM ttrss_user_entries WHERE ref_id = id)");
 312
 313                 if ($do_output) {
 314                         $rows = db_affected_rows($result);
 315                         _debug("Purged $rows orphaned posts.");
 316                 }
 317         }
 318
 319         function get_feed_update_interval($feed_id) {
 320                 $result = db_query("SELECT owner_uid, update_interval FROM
 321                         ttrss_feeds WHERE id = '$feed_id'");
 322
 323                 if (db_num_rows($result) == 1) {
 324                         $update_interval = db_fetch_result($result, 0, "update_interval");
 325                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 326
 327                         if ($update_interval != 0) {
 328                                 return $update_interval;
 329                         } else {
 330                                 return get_pref('DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 331                         }
 332
 333                 } else {
 334                         return -1;
 335                 }
 336         }
 337
 338         // TODO: multiple-argument way is deprecated, first parameter is a hash now
 339         function fetch_file_contents($options /* previously: 0: $url , 1: $type = false, 2: $login = false, 3: $pass = false,
 340                                 4: $post_query = false, 5: $timeout = false, 6: $timestamp = 0, 7: $useragent = false*/) {
 341
 342                 global $fetch_last_error;
 343                 global $fetch_last_error_code;
 344                 global $fetch_last_error_content;
 345                 global $fetch_last_content_type;
 346                 global $fetch_curl_used;
 347
 348                 if (!is_array($options)) {
 349
 350                         // falling back on compatibility shim
 351                         $option_names = [ "url", "type", "login", "pass", "post_query", "timeout", "timestamp", "useragent" ];
 352                         $tmp = [];
 353
 354                         for ($i = 0; $i < func_num_args(); $i++) {
 355                                 $tmp[$option_names[$i]] = func_get_arg($i);
 356                         }
 357
 358                         $options = $tmp;
 359
 360                         /*$options = array(
 361                                         "url" => func_get_arg(0),
 362                                         "type" => @func_get_arg(1),
 363                                         "login" => @func_get_arg(2),
 364                                         "pass" => @func_get_arg(3),
 365                                         "post_query" => @func_get_arg(4),
 366                                         "timeout" => @func_get_arg(5),
 367                                         "timestamp" => @func_get_arg(6),
 368                                         "useragent" => @func_get_arg(7)
 369                         ); */
 370                 }
 371
 372                 $url = $options["url"];
 373                 $type = isset($options["type"]) ? $options["type"] : false;
 374                 $login = isset($options["login"]) ? $options["login"] : false;
 375                 $pass = isset($options["pass"]) ? $options["pass"] : false;
 376                 $post_query = isset($options["post_query"]) ? $options["post_query"] : false;
 377                 $timeout = isset($options["timeout"]) ? $options["timeout"] : false;
 378                 $timestamp = isset($options["timestamp"]) ? $options["timestamp"] : 0;
 379                 $useragent = isset($options["useragent"]) ? $options["useragent"] : false;
 380                 $followlocation = isset($options["followlocation"]) ? $options["followlocation"] : true;
 381
 382                 $url = ltrim($url, ' ');
 383                 $url = str_replace(' ', '%20', $url);
 384
 385                 if (strpos($url, "//") === 0)
 386                         $url = 'http:' . $url;
 387
 388                 if (!defined('NO_CURL') && function_exists('curl_init') && !ini_get("open_basedir")) {
 389
 390                         $fetch_curl_used = true;
 391
 392                         $ch = curl_init($url);
 393
 394                         if ($timestamp && !$post_query) {
 395                                 curl_setopt($ch, CURLOPT_HTTPHEADER,
 396                                         array("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $timestamp)));
 397                         }
 398
 399                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
 400                         curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
 401                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir") && $followlocation);
 402                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 403                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 404                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 405                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 406                         curl_setopt($ch, CURLOPT_USERAGENT, $useragent ? $useragent :
 407                                 SELF_USER_AGENT);
 408                         curl_setopt($ch, CURLOPT_ENCODING, "");
 409                         //curl_setopt($ch, CURLOPT_REFERER, $url);
 410
 411                         if (!ini_get("open_basedir")) {
 412                                 curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null");
 413                         }
 414
 415                         if (defined('_CURL_HTTP_PROXY')) {
 416                                 curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);
 417                         }
 418
 419                         if ($post_query) {
 420                                 curl_setopt($ch, CURLOPT_POST, true);
 421                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 422                         }
 423
 424                         if ($login && $pass)
 425                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 426
 427                         $contents = @curl_exec($ch);
 428
 429                         if (curl_errno($ch) === 23 || curl_errno($ch) === 61) {
 430                                 curl_setopt($ch, CURLOPT_ENCODING, 'none');
 431                                 $contents = @curl_exec($ch);
 432                         }
 433
 434                         if ($contents === false) {
 435                                 $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
 436                                 curl_close($ch);
 437                                 return false;
 438                         }
 439
 440                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 441                         $fetch_last_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 442
 443                         $fetch_last_error_code = $http_code;
 444
 445                         if ($http_code != 200 || $type && strpos($fetch_last_content_type, "$type") === false) {
 446                                 if (curl_errno($ch) != 0) {
 447                                         $fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
 448                                 } else {
 449                                         $fetch_last_error = "HTTP Code: $http_code";
 450                                 }
 451                                 $fetch_last_error_content = $contents;
 452                                 curl_close($ch);
 453                                 return false;
 454                         }
 455
 456                         curl_close($ch);
 457
 458                         return $contents;
 459                 } else {
 460
 461                         $fetch_curl_used = false;
 462
 463                         if ($login && $pass){
 464                                 $url_parts = array();
 465
 466                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 467
 468                                 $pass = urlencode($pass);
 469
 470                                 if ($url_parts[1] && $url_parts[2]) {
 471                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 472                                 }
 473                         }
 474
 475                         // TODO: should this support POST requests or not? idk
 476
 477                         if (!$post_query && $timestamp) {
 478                                  $context = stream_context_create(array(
 479                                           'http' => array(
 480                                                         'method' => 'GET',
 481                                                     'timeout' => $timeout ? $timeout : FILE_FETCH_TIMEOUT,
 482                                                         'protocol_version'=> 1.1,
 483                                                         'header' => "If-Modified-Since: ".gmdate("D, d M Y H:i:s \\G\\M\\T\r\n", $timestamp)
 484                                           )));
 485                         } else {
 486                                  $context = stream_context_create(array(
 487                                           'http' => array(
 488                                                         'method' => 'GET',
 489                                                     'timeout' => $timeout ? $timeout : FILE_FETCH_TIMEOUT,
 490                                                         'protocol_version'=> 1.1
 491                                           )));
 492                         }
 493
 494                         $old_error = error_get_last();
 495
 496                         $data = @file_get_contents($url, false, $context);
 497
 498                         $fetch_last_content_type = false;  // reset if no type was sent from server
 499                         if (isset($http_response_header) && is_array($http_response_header)) {
 500                                 foreach ($http_response_header as $h) {
 501                                         if (substr(strtolower($h), 0, 13) == 'content-type:') {
 502                                                 $fetch_last_content_type = substr($h, 14);
 503                                                 // don't abort here b/c there might be more than one
 504                                                 // e.g. if we were being redirected -- last one is the right one
 505                                         }
 506
 507                                         if (substr(strtolower($h), 0, 7) == 'http/1.') {
 508                                                 $fetch_last_error_code = (int) substr($h, 9, 3);
 509                                         }
 510                                 }
 511                         }
 512
 513                         if (!$data) {
 514                                 $error = error_get_last();
 515
 516                                 if ($error['message'] != $old_error['message']) {
 517                                         $fetch_last_error = $error["message"];
 518                                 } else {
 519                                         $fetch_last_error = "HTTP Code: $fetch_last_error_code";
 520                                 }
 521                         }
 522                         return $data;
 523                 }
 524
 525         }
 526
 527         /**
 528          * Try to determine the favicon URL for a feed.
 529          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 530          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 531          *
 532          * @param string $url A feed or page URL
 533          * @access public
 534          * @return mixed The favicon URL, or false if none was found.
 535          */
 536         function get_favicon_url($url) {
 537
 538                 $favicon_url = false;
 539
 540                 if ($html = @fetch_file_contents($url)) {
 541
 542                         libxml_use_internal_errors(true);
 543
 544                         $doc = new DOMDocument();
 545                         $doc->loadHTML($html);
 546                         $xpath = new DOMXPath($doc);
 547
 548                         $base = $xpath->query('/html/head/base');
 549                         foreach ($base as $b) {
 550                                 $url = $b->getAttribute("href");
 551                                 break;
 552                         }
 553
 554                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 555                         if (count($entries) > 0) {
 556                                 foreach ($entries as $entry) {
 557                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 558                                         break;
 559                                 }
 560                         }
 561                 }
 562
 563                 if (!$favicon_url)
 564                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 565
 566                 return $favicon_url;
 567         } // function get_favicon_url
 568
 569         function check_feed_favicon($site_url, $feed) {
 570 #               print "FAVICON [$site_url]: $favicon_url\n";
 571
 572                 $icon_file = ICONS_DIR . "/$feed.ico";
 573
 574                 if (!file_exists($icon_file)) {
 575                         $favicon_url = get_favicon_url($site_url);
 576
 577                         if ($favicon_url) {
 578                                 // Limiting to "image" type misses those served with text/plain
 579                                 $contents = fetch_file_contents($favicon_url); // , "image");
 580
 581                                 if ($contents) {
 582                                         // Crude image type matching.
 583                                         // Patterns gleaned from the file(1) source code.
 584                                         if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
 585                                                 // 0       string  \000\000\001\000        MS Windows icon resource
 586                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
 587                                         }
 588                                         elseif (preg_match('/^GIF8/', $contents)) {
 589                                                 // 0       string          GIF8            GIF image data
 590                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
 591                                         }
 592                                         elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
 593                                                 // 0       string          \x89PNG\x0d\x0a\x1a\x0a         PNG image data
 594                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
 595                                         }
 596                                         elseif (preg_match('/^\xff\xd8/', $contents)) {
 597                                                 // 0       beshort         0xffd8          JPEG image data
 598                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
 599                                         }
 600                                         else {
 601                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
 602                                                 $contents = "";
 603                                         }
 604                                 }
 605
 606                                 if ($contents) {
 607                                         $fp = @fopen($icon_file, "w");
 608
 609                                         if ($fp) {
 610                                                 fwrite($fp, $contents);
 611                                                 fclose($fp);
 612                                                 chmod($icon_file, 0644);
 613                                         }
 614                                 }
 615                         }
 616             return $icon_file;
 617                 }
 618         }
 619
 620         function print_select($id, $default, $values, $attributes = "", $name = "") {
 621                 if (!$name) $name = $id;
 622
 623                 print "<select name=\"$name\" id=\"$id\" $attributes>";
 624                 foreach ($values as $v) {
 625                         if ($v == $default)
 626                                 $sel = "selected=\"1\"";
 627                          else
 628                                 $sel = "";
 629
 630                         $v = trim($v);
 631
 632                         print "<option value=\"$v\" $sel>$v</option>";
 633                 }
 634                 print "</select>";
 635         }
 636
 637         function print_select_hash($id, $default, $values, $attributes = "", $name = "") {
 638                 if (!$name) $name = $id;
 639
 640                 print "<select name=\"$name\" id='$id' $attributes>";
 641                 foreach (array_keys($values) as $v) {
 642                         if ($v == $default)
 643                                 $sel = 'selected="selected"';
 644                          else
 645                                 $sel = "";
 646
 647                         $v = trim($v);
 648
 649                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
 650                 }
 651
 652                 print "</select>";
 653         }
 654
 655         function print_radio($id, $default, $true_is, $values, $attributes = "") {
 656                 foreach ($values as $v) {
 657
 658                         if ($v == $default)
 659                                 $sel = "checked";
 660                          else
 661                                 $sel = "";
 662
 663                         if ($v == $true_is) {
 664                                 $sel .= " value=\"1\"";
 665                         } else {
 666                                 $sel .= " value=\"0\"";
 667                         }
 668
 669                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
 670                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 671
 672                 }
 673         }
 674
 675         function initialize_user_prefs($uid, $profile = false) {
 676
 677                 $uid = db_escape_string($uid);
 678
 679                 if (!$profile) {
 680                         $profile = "NULL";
 681                         $profile_qpart = "AND profile IS NULL";
 682                 } else {
 683                         $profile_qpart = "AND profile = '$profile'";
 684                 }
 685
 686                 if (get_schema_version() < 63) $profile_qpart = "";
 687
 688                 db_query("BEGIN");
 689
 690                 $result = db_query("SELECT pref_name,def_value FROM ttrss_prefs");
 691
 692                 $u_result = db_query("SELECT pref_name
 693                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
 694
 695                 $active_prefs = array();
 696
 697                 while ($line = db_fetch_assoc($u_result)) {
 698                         array_push($active_prefs, $line["pref_name"]);
 699                 }
 700
 701                 while ($line = db_fetch_assoc($result)) {
 702                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 703 //                              print "adding " . $line["pref_name"] . "<br>";
 704
 705                                 $line["def_value"] = db_escape_string($line["def_value"]);
 706                                 $line["pref_name"] = db_escape_string($line["pref_name"]);
 707
 708                                 if (get_schema_version() < 63) {
 709                                         db_query("INSERT INTO ttrss_user_prefs
 710                                                 (owner_uid,pref_name,value) VALUES
 711                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 712
 713                                 } else {
 714                                         db_query("INSERT INTO ttrss_user_prefs
 715                                                 (owner_uid,pref_name,value, profile) VALUES
 716                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
 717                                 }
 718
 719                         }
 720                 }
 721
 722                 db_query("COMMIT");
 723
 724         }
 725
 726         function get_ssl_certificate_id() {
 727                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
 728                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
 729                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
 730                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
 731                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
 732                 }
 733                 if ($_SERVER["SSL_CLIENT_M_SERIAL"]) {
 734                         return sha1($_SERVER["SSL_CLIENT_M_SERIAL"] .
 735                                 $_SERVER["SSL_CLIENT_V_START"] .
 736                                 $_SERVER["SSL_CLIENT_V_END"] .
 737                                 $_SERVER["SSL_CLIENT_S_DN"]);
 738                 }
 739                 return "";
 740         }
 741
 742         function authenticate_user($login, $password, $check_only = false) {
 743
 744                 if (!SINGLE_USER_MODE) {
 745                         $user_id = false;
 746
 747                         foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) {
 748
 749                                 $user_id = (int) $plugin->authenticate($login, $password);
 750
 751                                 if ($user_id) {
 752                                         $_SESSION["auth_module"] = strtolower(get_class($plugin));
 753                                         break;
 754                                 }
 755                         }
 756
 757                         if ($user_id && !$check_only) {
 758                                 @session_start();
 759
 760                                 $_SESSION["uid"] = $user_id;
 761                                 $_SESSION["version"] = VERSION_STATIC;
 762
 763                                 $result = db_query("SELECT login,access_level,pwd_hash FROM ttrss_users
 764                                         WHERE id = '$user_id'");
 765
 766                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
 767                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 768                                 $_SESSION["csrf_token"] = uniqid_short();
 769
 770                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 771                                         $_SESSION["uid"]);
 772
 773                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 774                                 $_SESSION["user_agent"] = sha1($_SERVER['HTTP_USER_AGENT']);
 775                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
 776
 777                                 $_SESSION["last_version_check"] = time();
 778
 779                                 initialize_user_prefs($_SESSION["uid"]);
 780
 781                                 return true;
 782                         }
 783
 784                         return false;
 785
 786                 } else {
 787
 788                         $_SESSION["uid"] = 1;
 789                         $_SESSION["name"] = "admin";
 790                         $_SESSION["access_level"] = 10;
 791
 792                         $_SESSION["hide_hello"] = true;
 793                         $_SESSION["hide_logout"] = true;
 794
 795                         $_SESSION["auth_module"] = false;
 796
 797                         if (!$_SESSION["csrf_token"]) {
 798                                 $_SESSION["csrf_token"] = uniqid_short();
 799                         }
 800
 801                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 802
 803                         initialize_user_prefs($_SESSION["uid"]);
 804
 805                         return true;
 806                 }
 807         }
 808
 809         function make_password($length = 8) {
 810
 811                 $password = "";
 812                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
 813
 814         $i = 0;
 815
 816                 while ($i < $length) {
 817                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 818
 819                         if (!strstr($password, $char)) {
 820                                 $password .= $char;
 821                                 $i++;
 822                         }
 823                 }
 824                 return $password;
 825         }
 826
 827         // this is called after user is created to initialize default feeds, labels
 828         // or whatever else
 829
 830         // user preferences are checked on every login, not here
 831
 832         function initialize_user($uid) {
 833
 834                 db_query("insert into ttrss_feeds (owner_uid,title,feed_url)
 835                         values ('$uid', 'Tiny Tiny RSS: Forum',
 836                                 'http://tt-rss.org/forum/rss.php')");
 837         }
 838
 839         function logout_user() {
 840                 session_destroy();
 841                 if (isset($_COOKIE[session_name()])) {
 842                    setcookie(session_name(), '', time()-42000, '/');
 843                 }
 844         }
 845
 846         function validate_csrf($csrf_token) {
 847                 return $csrf_token == $_SESSION['csrf_token'];
 848         }
 849
 850         function load_user_plugins($owner_uid, $pluginhost = false) {
 851
 852                 if (!$pluginhost) $pluginhost = PluginHost::getInstance();
 853
 854                 if ($owner_uid && SCHEMA_VERSION >= 100) {
 855                         $plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
 856
 857                         $pluginhost->load($plugins, PluginHost::KIND_USER, $owner_uid);
 858
 859                         if (get_schema_version() > 100) {
 860                                 $pluginhost->load_data();
 861                         }
 862                 }
 863         }
 864
 865         function login_sequence() {
 866                 if (SINGLE_USER_MODE) {
 867                         @session_start();
 868                         authenticate_user("admin", null);
 869                         startup_gettext();
 870                         load_user_plugins($_SESSION["uid"]);
 871                 } else {
 872                         if (!validate_session()) $_SESSION["uid"] = false;
 873
 874                         if (!$_SESSION["uid"]) {
 875
 876                                 if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) {
 877                                     $_SESSION["ref_schema_version"] = get_schema_version(true);
 878                                 } else {
 879                                          authenticate_user(null, null, true);
 880                                 }
 881
 882                                 if (!$_SESSION["uid"]) {
 883                                         @session_destroy();
 884                                         setcookie(session_name(), '', time()-42000, '/');
 885
 886                                         render_login_form();
 887                                         exit;
 888                                 }
 889
 890                         } else {
 891                                 /* bump login timestamp */
 892                                 db_query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 893                                         $_SESSION["uid"]);
 894                                 $_SESSION["last_login_update"] = time();
 895                         }
 896
 897                         if ($_SESSION["uid"]) {
 898                                 startup_gettext();
 899                                 load_user_plugins($_SESSION["uid"]);
 900
 901                                 /* cleanup ccache */
 902
 903                                 db_query("DELETE FROM ttrss_counters_cache WHERE owner_uid = ".
 904                                         $_SESSION["uid"] . " AND
 905                                                 (SELECT COUNT(id) FROM ttrss_feeds WHERE
 906                                                         ttrss_feeds.id = feed_id) = 0");
 907
 908                                 db_query("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ".
 909                                         $_SESSION["uid"] . " AND
 910                                                 (SELECT COUNT(id) FROM ttrss_feed_categories WHERE
 911                                                         ttrss_feed_categories.id = feed_id) = 0");
 912
 913                         }
 914
 915                 }
 916         }
 917
 918         function truncate_string($str, $max_len, $suffix = '&hellip;') {
 919                 if (mb_strlen($str, "utf-8") > $max_len) {
 920                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
 921                 } else {
 922                         return $str;
 923                 }
 924         }
 925
 926         // is not utf8 clean
 927         function truncate_middle($str, $max_len, $suffix = '&hellip;') {
 928                 if (strlen($str) > $max_len) {
 929                         return substr_replace($str, $suffix, $max_len / 2, mb_strlen($str) - $max_len);
 930                 } else {
 931                         return $str;
 932                 }
 933         }
 934
 935         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
 936
 937                 try {
 938                         $source_tz = new DateTimeZone($source_tz);
 939                 } catch (Exception $e) {
 940                         $source_tz = new DateTimeZone('UTC');
 941                 }
 942
 943                 try {
 944                         $dest_tz = new DateTimeZone($dest_tz);
 945                 } catch (Exception $e) {
 946                         $dest_tz = new DateTimeZone('UTC');
 947                 }
 948
 949                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
 950                 return $dt->format('U') + $dest_tz->getOffset($dt);
 951         }
 952
 953         function make_local_datetime($timestamp, $long, $owner_uid = false,
 954                                         $no_smart_dt = false, $eta_min = false) {
 955
 956                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 957                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
 958
 959                 global $utc_tz;
 960                 global $user_tz;
 961
 962                 if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
 963
 964                 $timestamp = substr($timestamp, 0, 19);
 965
 966                 # We store date in UTC internally
 967                 $dt = new DateTime($timestamp, $utc_tz);
 968
 969                 $user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
 970
 971                 if ($user_tz_string != 'Automatic') {
 972
 973                         try {
 974                                 if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
 975                         } catch (Exception $e) {
 976                                 $user_tz = $utc_tz;
 977                         }
 978
 979                         $tz_offset = $user_tz->getOffset($dt);
 980                 } else {
 981                         $tz_offset = (int) -$_SESSION["clientTzOffset"];
 982                 }
 983
 984                 $user_timestamp = $dt->format('U') + $tz_offset;
 985
 986                 if (!$no_smart_dt) {
 987                         return smart_date_time($user_timestamp,
 988                                 $tz_offset, $owner_uid, $eta_min);
 989                 } else {
 990                         if ($long)
 991                                 $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
 992                         else
 993                                 $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
 994
 995                         return date($format, $user_timestamp);
 996                 }
 997         }
 998
 999         function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false, $eta_min = false) {
1000                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1001
1002                 if ($eta_min && time() + $tz_offset - $timestamp < 3600) {
1003                         return T_sprintf("%d min", date("i", time() + $tz_offset - $timestamp));
1004                 } else if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
1005                         return date("G:i", $timestamp);
1006                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
1007                         $format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
1008                         return date($format, $timestamp);
1009                 } else {
1010                         $format = get_pref('LONG_DATE_FORMAT', $owner_uid);
1011                         return date($format, $timestamp);
1012                 }
1013         }
1014
1015         function sql_bool_to_bool($s) {
1016                 if ($s == "t" || $s == "1" || strtolower($s) == "true") {
1017                         return true;
1018                 } else {
1019                         return false;
1020                 }
1021         }
1022
1023         function bool_to_sql_bool($s) {
1024                 if ($s) {
1025                         return "true";
1026                 } else {
1027                         return "false";
1028                 }
1029         }
1030
1031         // Session caching removed due to causing wrong redirects to upgrade
1032         // script when get_schema_version() is called on an obsolete session
1033         // created on a previous schema version.
1034         function get_schema_version($nocache = false) {
1035                 global $schema_version;
1036
1037                 if (!$schema_version && !$nocache) {
1038                         $result = db_query("SELECT schema_version FROM ttrss_version");
1039                         $version = db_fetch_result($result, 0, "schema_version");
1040                         $schema_version = $version;
1041                         return $version;
1042                 } else {
1043                         return $schema_version;
1044                 }
1045         }
1046
1047         function sanity_check() {
1048                 require_once 'errors.php';
1049                 global $ERRORS;
1050
1051                 $error_code = 0;
1052                 $schema_version = get_schema_version(true);
1053
1054                 if ($schema_version != SCHEMA_VERSION) {
1055                         $error_code = 5;
1056                 }
1057
1058                 if (DB_TYPE == "mysql") {
1059                         $result = db_query("SELECT true", false);
1060                         if (db_num_rows($result) != 1) {
1061                                 $error_code = 10;
1062                         }
1063                 }
1064
1065                 if (db_escape_string("testTEST") != "testTEST") {
1066                         $error_code = 12;
1067                 }
1068
1069                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1070         }
1071
1072         function file_is_locked($filename) {
1073                 if (file_exists(LOCK_DIRECTORY . "/$filename")) {
1074                         if (function_exists('flock')) {
1075                                 $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1076                                 if ($fp) {
1077                                         if (flock($fp, LOCK_EX | LOCK_NB)) {
1078                                                 flock($fp, LOCK_UN);
1079                                                 fclose($fp);
1080                                                 return false;
1081                                         }
1082                                         fclose($fp);
1083                                         return true;
1084                                 } else {
1085                                         return false;
1086                                 }
1087                         }
1088                         return true; // consider the file always locked and skip the test
1089                 } else {
1090                         return false;
1091                 }
1092         }
1093
1094
1095         function make_lockfile($filename) {
1096                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1097
1098                 if ($fp && flock($fp, LOCK_EX | LOCK_NB)) {
1099                         $stat_h = fstat($fp);
1100                         $stat_f = stat(LOCK_DIRECTORY . "/$filename");
1101
1102                         if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
1103                                 if ($stat_h["ino"] != $stat_f["ino"] ||
1104                                                 $stat_h["dev"] != $stat_f["dev"]) {
1105
1106                                         return false;
1107                                 }
1108                         }
1109
1110                         if (function_exists('posix_getpid')) {
1111                                 fwrite($fp, posix_getpid() . "\n");
1112                         }
1113                         return $fp;
1114                 } else {
1115                         return false;
1116                 }
1117         }
1118
1119         function make_stampfile($filename) {
1120                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1121
1122                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1123                         fwrite($fp, time() . "\n");
1124                         flock($fp, LOCK_UN);
1125                         fclose($fp);
1126                         return true;
1127                 } else {
1128                         return false;
1129                 }
1130         }
1131
1132         function sql_random_function() {
1133                 if (DB_TYPE == "mysql") {
1134                         return "RAND()";
1135                 } else {
1136                         return "RANDOM()";
1137                 }
1138         }
1139
1140         function catchup_feed($feed, $cat_view, $owner_uid = false, $max_id = false, $mode = 'all') {
1141
1142                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1143
1144                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1145
1146                         // Todo: all this interval stuff needs some generic generator function
1147
1148                         $date_qpart = "false";
1149
1150                         switch ($mode) {
1151                         case "1day":
1152                                 if (DB_TYPE == "pgsql") {
1153                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
1154                                 } else {
1155                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
1156                                 }
1157                                 break;
1158                         case "1week":
1159                                 if (DB_TYPE == "pgsql") {
1160                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 week' ";
1161                                 } else {
1162                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 WEEK) ";
1163                                 }
1164                                 break;
1165                         case "2week":
1166                                 if (DB_TYPE == "pgsql") {
1167                                         $date_qpart = "date_entered < NOW() - INTERVAL '2 week' ";
1168                                 } else {
1169                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 2 WEEK) ";
1170                                 }
1171                                 break;
1172                         default:
1173                                 $date_qpart = "true";
1174                         }
1175
1176                         if (is_numeric($feed)) {
1177                                 if ($cat_view) {
1178
1179                                         if ($feed >= 0) {
1180
1181                                                 if ($feed > 0) {
1182                                                         $children = getChildCategories($feed, $owner_uid);
1183                                                         array_push($children, $feed);
1184
1185                                                         $children = join(",", $children);
1186
1187                                                         $cat_qpart = "cat_id IN ($children)";
1188                                                 } else {
1189                                                         $cat_qpart = "cat_id IS NULL";
1190                                                 }
1191
1192                                                 db_query("UPDATE ttrss_user_entries
1193                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1194                                                                 (SELECT id FROM
1195                                                                         (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1196                                                                                 AND owner_uid = $owner_uid AND unread = true AND feed_id IN
1197                                                                                         (SELECT id FROM ttrss_feeds WHERE $cat_qpart) AND $date_qpart) as tmp)");
1198
1199                                         } else if ($feed == -2) {
1200
1201                                                 db_query("UPDATE ttrss_user_entries
1202                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1203                                                                 FROM ttrss_user_labels2, ttrss_entries WHERE article_id = ref_id AND id = ref_id AND $date_qpart) > 0
1204                                                                 AND unread = true AND owner_uid = $owner_uid");
1205                                         }
1206
1207                                 } else if ($feed > 0) {
1208
1209                                         db_query("UPDATE ttrss_user_entries
1210                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1211                                                         (SELECT id FROM
1212                                                                 (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1213                                                                         AND owner_uid = $owner_uid AND unread = true AND feed_id = $feed AND $date_qpart) as tmp)");
1214
1215                                 } else if ($feed < 0 && $feed > LABEL_BASE_INDEX) { // special, like starred
1216
1217                                         if ($feed == -1) {
1218                                                 db_query("UPDATE ttrss_user_entries
1219                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1220                                                                 (SELECT id FROM
1221                                                                         (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1222                                                                                 AND owner_uid = $owner_uid AND unread = true AND marked = true AND $date_qpart) as tmp)");
1223                                         }
1224
1225                                         if ($feed == -2) {
1226                                                 db_query("UPDATE ttrss_user_entries
1227                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1228                                                                 (SELECT id FROM
1229                                                                         (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1230                                                                                 AND owner_uid = $owner_uid AND unread = true AND published = true AND $date_qpart) as tmp)");
1231                                         }
1232
1233                                         if ($feed == -3) {
1234
1235                                                 $intl = get_pref("FRESH_ARTICLE_MAX_AGE");
1236
1237                                                 if (DB_TYPE == "pgsql") {
1238                                                         $match_part = "date_entered > NOW() - INTERVAL '$intl hour' ";
1239                                                 } else {
1240                                                         $match_part = "date_entered > DATE_SUB(NOW(),
1241                                                                 INTERVAL $intl HOUR) ";
1242                                                 }
1243
1244                                                 db_query("UPDATE ttrss_user_entries
1245                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1246                                                                 (SELECT id FROM
1247                                                                         (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1248                                                                                 AND owner_uid = $owner_uid AND score >= 0 AND unread = true AND $date_qpart AND $match_part) as tmp)");
1249                                         }
1250
1251                                         if ($feed == -4) {
1252                                                 db_query("UPDATE ttrss_user_entries
1253                                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1254                                                                 (SELECT id FROM
1255                                                                         (SELECT DISTINCT id FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id
1256                                                                                 AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1257                                         }
1258
1259                                 } else if ($feed < LABEL_BASE_INDEX) { // label
1260
1261                                         $label_id = feed_to_label_id($feed);
1262
1263                                         db_query("UPDATE ttrss_user_entries
1264                                                 SET unread = false, last_read = NOW() WHERE ref_id IN
1265                                                         (SELECT id FROM
1266                                                                 (SELECT DISTINCT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_user_labels2 WHERE ref_id = id
1267                                                                         AND label_id = '$label_id' AND ref_id = article_id
1268                                                                         AND owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1269
1270                                 }
1271
1272                                 ccache_update($feed, $owner_uid, $cat_view);
1273
1274                         } else { // tag
1275                                 db_query("UPDATE ttrss_user_entries
1276                                         SET unread = false, last_read = NOW() WHERE ref_id IN
1277                                                 (SELECT id FROM
1278                                                         (SELECT DISTINCT ttrss_entries.id FROM ttrss_entries, ttrss_user_entries, ttrss_tags WHERE ref_id = ttrss_entries.id
1279                                                                 AND post_int_id = int_id AND tag_name = '$feed'
1280                                                                 AND ttrss_user_entries.owner_uid = $owner_uid AND unread = true AND $date_qpart) as tmp)");
1281
1282                         }
1283         }
1284
1285         function getAllCounters() {
1286                 $data = getGlobalCounters();
1287
1288                 $data = array_merge($data, getVirtCounters());
1289                 $data = array_merge($data, getLabelCounters());
1290                 $data = array_merge($data, getFeedCounters());
1291                 $data = array_merge($data, getCategoryCounters());
1292
1293                 return $data;
1294         }
1295
1296         function getCategoryTitle($cat_id) {
1297
1298                 if ($cat_id == -1) {
1299                         return __("Special");
1300                 } else if ($cat_id == -2) {
1301                         return __("Labels");
1302                 } else {
1303
1304                         $result = db_query("SELECT title FROM ttrss_feed_categories WHERE
1305                                 id = '$cat_id'");
1306
1307                         if (db_num_rows($result) == 1) {
1308                                 return db_fetch_result($result, 0, "title");
1309                         } else {
1310                                 return __("Uncategorized");
1311                         }
1312                 }
1313         }
1314
1315
1316         function getCategoryCounters() {
1317                 $ret_arr = array();
1318
1319                 /* Labels category */
1320
1321                 $cv = array("id" => -2, "kind" => "cat",
1322                         "counter" => getCategoryUnread(-2));
1323
1324                 array_push($ret_arr, $cv);
1325
1326                 $result = db_query("SELECT id AS cat_id, value AS unread,
1327                         (SELECT COUNT(id) FROM ttrss_feed_categories AS c2
1328                                 WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
1329                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
1330                         WHERE ttrss_cat_counters_cache.feed_id = id AND
1331                         ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid AND
1332                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1333
1334                 while ($line = db_fetch_assoc($result)) {
1335                         $line["cat_id"] = (int) $line["cat_id"];
1336
1337                         if ($line["num_children"] > 0) {
1338                                 $child_counter = getCategoryChildrenUnread($line["cat_id"], $_SESSION["uid"]);
1339                         } else {
1340                                 $child_counter = 0;
1341                         }
1342
1343                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
1344                                 "counter" => $line["unread"] + $child_counter);
1345
1346                         array_push($ret_arr, $cv);
1347                 }
1348
1349                 /* Special case: NULL category doesn't actually exist in the DB */
1350
1351                 $cv = array("id" => 0, "kind" => "cat",
1352                         "counter" => (int) ccache_find(0, $_SESSION["uid"], true));
1353
1354                 array_push($ret_arr, $cv);
1355
1356                 return $ret_arr;
1357         }
1358
1359         // only accepts real cats (>= 0)
1360         function getCategoryChildrenUnread($cat, $owner_uid = false) {
1361                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1362
1363                 $result = db_query("SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
1364                                 AND owner_uid = $owner_uid");
1365
1366                 $unread = 0;
1367
1368                 while ($line = db_fetch_assoc($result)) {
1369                         $unread += getCategoryUnread($line["id"], $owner_uid);
1370                         $unread += getCategoryChildrenUnread($line["id"], $owner_uid);
1371                 }
1372
1373                 return $unread;
1374         }
1375
1376         function getCategoryUnread($cat, $owner_uid = false) {
1377
1378                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1379
1380                 if ($cat >= 0) {
1381
1382                         if ($cat != 0) {
1383                                 $cat_query = "cat_id = '$cat'";
1384                         } else {
1385                                 $cat_query = "cat_id IS NULL";
1386                         }
1387
1388                         $result = db_query("SELECT id FROM ttrss_feeds WHERE $cat_query
1389                                         AND owner_uid = " . $owner_uid);
1390
1391                         $cat_feeds = array();
1392                         while ($line = db_fetch_assoc($result)) {
1393                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
1394                         }
1395
1396                         if (count($cat_feeds) == 0) return 0;
1397
1398                         $match_part = implode(" OR ", $cat_feeds);
1399
1400                         $result = db_query("SELECT COUNT(int_id) AS unread
1401                                 FROM ttrss_user_entries
1402                                 WHERE   unread = true AND ($match_part)
1403                                 AND owner_uid = " . $owner_uid);
1404
1405                         $unread = 0;
1406
1407                         # this needs to be rewritten
1408                         while ($line = db_fetch_assoc($result)) {
1409                                 $unread += $line["unread"];
1410                         }
1411
1412                         return $unread;
1413                 } else if ($cat == -1) {
1414                         return getFeedUnread(-1) + getFeedUnread(-2) + getFeedUnread(-3) + getFeedUnread(0);
1415                 } else if ($cat == -2) {
1416
1417                         $result = db_query("
1418                                 SELECT COUNT(unread) AS unread FROM
1419                                         ttrss_user_entries, ttrss_user_labels2
1420                                 WHERE article_id = ref_id AND unread = true
1421                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
1422
1423                         $unread = db_fetch_result($result, 0, "unread");
1424
1425                         return $unread;
1426
1427                 }
1428         }
1429
1430         function getFeedUnread($feed, $is_cat = false) {
1431                 return getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]);
1432         }
1433
1434         function getLabelUnread($label_id, $owner_uid = false) {
1435                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1436
1437                 $result = db_query("SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
1438                         WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
1439
1440                 if (db_num_rows($result) != 0) {
1441                         return db_fetch_result($result, 0, "unread");
1442                 } else {
1443                         return 0;
1444                 }
1445         }
1446
1447         function getFeedArticles($feed, $is_cat = false, $unread_only = false,
1448                 $owner_uid = false) {
1449
1450                 $n_feed = (int) $feed;
1451                 $need_entries = false;
1452
1453                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1454
1455                 if ($unread_only) {
1456                         $unread_qpart = "unread = true";
1457                 } else {
1458                         $unread_qpart = "true";
1459                 }
1460
1461                 if ($is_cat) {
1462                         return getCategoryUnread($n_feed, $owner_uid);
1463                 } else if ($n_feed == -6) {
1464                         return 0;
1465                 } else if ($feed != "0" && $n_feed == 0) {
1466
1467                         $feed = db_escape_string($feed);
1468
1469                         $result = db_query("SELECT SUM((SELECT COUNT(int_id)
1470                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1471                                         AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
1472                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1473                         return db_fetch_result($result, 0, "count");
1474
1475                 } else if ($n_feed == -1) {
1476                         $match_part = "marked = true";
1477                 } else if ($n_feed == -2) {
1478                         $match_part = "published = true";
1479                 } else if ($n_feed == -3) {
1480                         $match_part = "unread = true AND score >= 0";
1481
1482                         $intl = get_pref("FRESH_ARTICLE_MAX_AGE", $owner_uid);
1483
1484                         if (DB_TYPE == "pgsql") {
1485                                 $match_part .= " AND date_entered > NOW() - INTERVAL '$intl hour' ";
1486                         } else {
1487                                 $match_part .= " AND date_entered > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1488                         }
1489
1490                         $need_entries = true;
1491
1492                 } else if ($n_feed == -4) {
1493                         $match_part = "true";
1494                 } else if ($n_feed >= 0) {
1495
1496                         if ($n_feed != 0) {
1497                                 $match_part = "feed_id = '$n_feed'";
1498                         } else {
1499                                 $match_part = "feed_id IS NULL";
1500                         }
1501
1502                 } else if ($feed < LABEL_BASE_INDEX) {
1503
1504                         $label_id = feed_to_label_id($feed);
1505
1506                         return getLabelUnread($label_id, $owner_uid);
1507
1508                 }
1509
1510                 if ($match_part) {
1511
1512                         if ($need_entries) {
1513                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
1514                                 $from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
1515                         } else {
1516                                 $from_qpart = "ttrss_user_entries";
1517                                 $from_where = "";
1518                         }
1519
1520                         $query = "SELECT count(int_id) AS unread
1521                                 FROM $from_qpart WHERE
1522                                 $unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1523
1524                         //echo "[$feed/$query]\n";
1525
1526                         $result = db_query($query);
1527
1528                 } else {
1529
1530                         $result = db_query("SELECT COUNT(post_int_id) AS unread
1531                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1532                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1533                                 AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
1534                 }
1535
1536                 $unread = db_fetch_result($result, 0, "unread");
1537
1538                 return $unread;
1539         }
1540
1541         function getGlobalUnread($user_id = false) {
1542
1543                 if (!$user_id) {
1544                         $user_id = $_SESSION["uid"];
1545                 }
1546
1547                 $result = db_query("SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1548                         WHERE owner_uid = '$user_id' AND feed_id > 0");
1549
1550                 $c_id = db_fetch_result($result, 0, "c_id");
1551
1552                 return $c_id;
1553         }
1554
1555         function getGlobalCounters($global_unread = -1) {
1556                 $ret_arr = array();
1557
1558                 if ($global_unread == -1) {
1559                         $global_unread = getGlobalUnread();
1560                 }
1561
1562                 $cv = array("id" => "global-unread",
1563                         "counter" => (int) $global_unread);
1564
1565                 array_push($ret_arr, $cv);
1566
1567                 $result = db_query("SELECT COUNT(id) AS fn FROM
1568                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1569
1570                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1571
1572                 $cv = array("id" => "subscribed-feeds",
1573                         "counter" => (int) $subscribed_feeds);
1574
1575                 array_push($ret_arr, $cv);
1576
1577                 return $ret_arr;
1578         }
1579
1580         function getVirtCounters() {
1581
1582                 $ret_arr = array();
1583
1584                 for ($i = 0; $i >= -4; $i--) {
1585
1586                         $count = getFeedUnread($i);
1587
1588                         if ($i == 0 || $i == -1 || $i == -2)
1589                                 $auxctr = getFeedArticles($i, false);
1590                         else
1591                                 $auxctr = 0;
1592
1593                         $cv = array("id" => $i,
1594                                 "counter" => (int) $count,
1595                                 "auxcounter" => (int) $auxctr);
1596
1597 //                      if (get_pref('EXTENDED_FEEDLIST'))
1598 //                              $cv["xmsg"] = getFeedArticles($i)." ".__("total");
1599
1600                         array_push($ret_arr, $cv);
1601                 }
1602
1603                 $feeds = PluginHost::getInstance()->get_feeds(-1);
1604
1605                 if (is_array($feeds)) {
1606                         foreach ($feeds as $feed) {
1607                                 $cv = array("id" => PluginHost::pfeed_to_feed_id($feed['id']),
1608                                         "counter" => $feed['sender']->get_unread($feed['id']));
1609
1610                                 if (method_exists($feed['sender'], 'get_total'))
1611                                         $cv["auxcounter"] = $feed['sender']->get_total($feed['id']);
1612
1613                                 array_push($ret_arr, $cv);
1614                         }
1615                 }
1616
1617                 return $ret_arr;
1618         }
1619
1620         function getLabelCounters($descriptions = false) {
1621
1622                 $ret_arr = array();
1623
1624                 $owner_uid = $_SESSION["uid"];
1625
1626                 $result = db_query("SELECT id,caption,SUM(CASE WHEN u1.unread = true THEN 1 ELSE 0 END) AS unread, COUNT(u1.unread) AS total
1627                         FROM ttrss_labels2 LEFT JOIN ttrss_user_labels2 ON
1628                                 (ttrss_labels2.id = label_id)
1629                                 LEFT JOIN ttrss_user_entries AS u1 ON u1.ref_id = article_id
1630                                 WHERE ttrss_labels2.owner_uid = $owner_uid AND u1.owner_uid = $owner_uid
1631                                 GROUP BY ttrss_labels2.id,
1632                                         ttrss_labels2.caption");
1633
1634                 while ($line = db_fetch_assoc($result)) {
1635
1636                         $id = label_to_feed_id($line["id"]);
1637
1638                         $cv = array("id" => $id,
1639                                 "counter" => (int) $line["unread"],
1640                                 "auxcounter" => (int) $line["total"]);
1641
1642                         if ($descriptions)
1643                                 $cv["description"] = $line["caption"];
1644
1645                         array_push($ret_arr, $cv);
1646                 }
1647
1648                 return $ret_arr;
1649         }
1650
1651         function getFeedCounters($active_feed = false) {
1652
1653                 $ret_arr = array();
1654
1655                 $query = "SELECT ttrss_feeds.id,
1656                                 ttrss_feeds.title,
1657                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1658                                 last_error, value AS count
1659                         FROM ttrss_feeds, ttrss_counters_cache
1660                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1661                                 AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
1662                                 AND ttrss_counters_cache.feed_id = id";
1663
1664                 $result = db_query($query);
1665
1666                 while ($line = db_fetch_assoc($result)) {
1667
1668                         $id = $line["id"];
1669                         $count = $line["count"];
1670                         $last_error = htmlspecialchars($line["last_error"]);
1671
1672                         $last_updated = make_local_datetime($line['last_updated'], false);
1673
1674                         $has_img = feed_has_icon($id);
1675
1676                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1677                                 $last_updated = '';
1678
1679                         $cv = array("id" => $id,
1680                                 "updated" => $last_updated,
1681                                 "counter" => (int) $count,
1682                                 "has_img" => (int) $has_img);
1683
1684                         if ($last_error)
1685                                 $cv["error"] = $last_error;
1686
1687 //                      if (get_pref('EXTENDED_FEEDLIST'))
1688 //                              $cv["xmsg"] = getFeedArticles($id)." ".__("total");
1689
1690                         if ($active_feed && $id == $active_feed)
1691                                 $cv["title"] = truncate_string($line["title"], 30);
1692
1693                         array_push($ret_arr, $cv);
1694
1695                 }
1696
1697                 return $ret_arr;
1698         }
1699
1700         function get_pgsql_version() {
1701                 $result = db_query("SELECT version() AS version");
1702                 $version = explode(" ", db_fetch_result($result, 0, "version"));
1703                 return $version[1];
1704         }
1705
1706         /**
1707          * @return array (code => Status code, message => error message if available)
1708          *
1709          *                 0 - OK, Feed already exists
1710          *                 1 - OK, Feed added
1711          *                 2 - Invalid URL
1712          *                 3 - URL content is HTML, no feeds available
1713          *                 4 - URL content is HTML which contains multiple feeds.
1714          *                     Here you should call extractfeedurls in rpc-backend
1715          *                     to get all possible feeds.
1716          *                 5 - Couldn't download the URL content.
1717          *                 6 - Content is an invalid XML.
1718          */
1719         function subscribe_to_feed($url, $cat_id = 0,
1720                         $auth_login = '', $auth_pass = '') {
1721
1722                 global $fetch_last_error;
1723
1724                 require_once "include/rssfuncs.php";
1725
1726                 $url = fix_url($url);
1727
1728                 if (!$url || !validate_feed_url($url)) return array("code" => 2);
1729
1730                 $contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
1731
1732                 if (!$contents) {
1733                         return array("code" => 5, "message" => $fetch_last_error);
1734                 }
1735
1736                 foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SUBSCRIBE_FEED) as $plugin) {
1737                         $contents = $plugin->hook_subscribe_feed($contents, $url, $auth_login, $auth_pass);
1738                 }
1739
1740                 if (is_html($contents)) {
1741                         $feedUrls = get_feeds_from_html($url, $contents);
1742
1743                         if (count($feedUrls) == 0) {
1744                                 return array("code" => 3);
1745                         } else if (count($feedUrls) > 1) {
1746                                 return array("code" => 4, "feeds" => $feedUrls);
1747                         }
1748                         //use feed url as new URL
1749                         $url = key($feedUrls);
1750                 }
1751
1752                 if ($cat_id == "0" || !$cat_id) {
1753                         $cat_qpart = "NULL";
1754                 } else {
1755                         $cat_qpart = "'$cat_id'";
1756                 }
1757
1758                 $result = db_query(
1759                         "SELECT id FROM ttrss_feeds
1760                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1761
1762                 $auth_pass_encrypted = 'false';
1763                 $auth_pass = db_escape_string($auth_pass);
1764
1765                 if (db_num_rows($result) == 0) {
1766                         $result = db_query(
1767                                 "INSERT INTO ttrss_feeds
1768                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method,auth_pass_encrypted)
1769                                 VALUES ('".$_SESSION["uid"]."', '$url',
1770                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0, $auth_pass_encrypted)");
1771
1772                         $result = db_query(
1773                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1774                                         AND owner_uid = " . $_SESSION["uid"]);
1775
1776                         $feed_id = db_fetch_result($result, 0, "id");
1777
1778                         if ($feed_id) {
1779                                 set_basic_feed_info($feed_id);
1780                         }
1781
1782                         return array("code" => 1, "feed_id" => (int) $feed_id);
1783                 } else {
1784                         return array("code" => 0, "feed_id" => (int) db_fetch_result($result, 0, "id"));
1785                 }
1786         }
1787
1788         function print_feed_select($id, $default_id = "",
1789                 $attributes = "", $include_all_feeds = true,
1790                 $root_id = false, $nest_level = 0) {
1791
1792                 if (!$root_id) {
1793                         print "<select id=\"$id\" name=\"$id\" $attributes>";
1794                         if ($include_all_feeds) {
1795                                 $is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
1796                                 print "<option $is_selected value=\"0\">".__('All feeds')."</option>";
1797                         }
1798                 }
1799
1800                 if (get_pref('ENABLE_FEED_CATS')) {
1801
1802                         if ($root_id)
1803                                 $parent_qpart = "parent_cat = '$root_id'";
1804                         else
1805                                 $parent_qpart = "parent_cat IS NULL";
1806
1807                         $result = db_query("SELECT id,title,
1808                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1809                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1810                                 FROM ttrss_feed_categories
1811                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1812
1813                         while ($line = db_fetch_assoc($result)) {
1814
1815                                 for ($i = 0; $i < $nest_level; $i++)
1816                                         $line["title"] = " - " . $line["title"];
1817
1818                                 $is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
1819
1820                                 printf("<option $is_selected value='CAT:%d'>%s</option>",
1821                                         $line["id"], htmlspecialchars($line["title"]));
1822
1823                                 if ($line["num_children"] > 0)
1824                                         print_feed_select($id, $default_id, $attributes,
1825                                                 $include_all_feeds, $line["id"], $nest_level+1);
1826
1827                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1828                                         WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1829
1830                                 while ($fline = db_fetch_assoc($feed_result)) {
1831                                         $is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
1832
1833                                         $fline["title"] = " + " . $fline["title"];
1834
1835                                         for ($i = 0; $i < $nest_level; $i++)
1836                                                 $fline["title"] = " - " . $fline["title"];
1837
1838                                         printf("<option $is_selected value='%d'>%s</option>",
1839                                                 $fline["id"], htmlspecialchars($fline["title"]));
1840                                 }
1841                         }
1842
1843                         if (!$root_id) {
1844                                 $default_is_cat = ($default_id == "CAT:0");
1845                                 $is_selected = $default_is_cat ? "selected=\"1\"" : "";
1846
1847                                 printf("<option $is_selected value='CAT:0'>%s</option>",
1848                                         __("Uncategorized"));
1849
1850                                 $feed_result = db_query("SELECT id,title FROM ttrss_feeds
1851                                         WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1852
1853                                 while ($fline = db_fetch_assoc($feed_result)) {
1854                                         $is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
1855
1856                                         $fline["title"] = " + " . $fline["title"];
1857
1858                                         for ($i = 0; $i < $nest_level; $i++)
1859                                                 $fline["title"] = " - " . $fline["title"];
1860
1861                                         printf("<option $is_selected value='%d'>%s</option>",
1862                                                 $fline["id"], htmlspecialchars($fline["title"]));
1863                                 }
1864                         }
1865
1866                 } else {
1867                         $result = db_query("SELECT id,title FROM ttrss_feeds
1868                                 WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1869
1870                         while ($line = db_fetch_assoc($result)) {
1871
1872                                 $is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
1873
1874                                 printf("<option $is_selected value='%d'>%s</option>",
1875                                         $line["id"], htmlspecialchars($line["title"]));
1876                         }
1877                 }
1878
1879                 if (!$root_id) {
1880                         print "</select>";
1881                 }
1882         }
1883
1884         function print_feed_cat_select($id, $default_id,
1885                 $attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
1886
1887                         if (!$root_id) {
1888                                         print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1889                         }
1890
1891                         if ($root_id)
1892                                 $parent_qpart = "parent_cat = '$root_id'";
1893                         else
1894                                 $parent_qpart = "parent_cat IS NULL";
1895
1896                         $result = db_query("SELECT id,title,
1897                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1898                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1899                                 FROM ttrss_feed_categories
1900                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1901
1902                         while ($line = db_fetch_assoc($result)) {
1903                                 if ($line["id"] == $default_id) {
1904                                         $is_selected = "selected=\"1\"";
1905                                 } else {
1906                                         $is_selected = "";
1907                                 }
1908
1909                                 for ($i = 0; $i < $nest_level; $i++)
1910                                         $line["title"] = " - " . $line["title"];
1911
1912                                 if ($line["title"])
1913                                         printf("<option $is_selected value='%d'>%s</option>",
1914                                                 $line["id"], htmlspecialchars($line["title"]));
1915
1916                                 if ($line["num_children"] > 0)
1917                                         print_feed_cat_select($id, $default_id, $attributes,
1918                                                 $include_all_cats, $line["id"], $nest_level+1);
1919                         }
1920
1921                         if (!$root_id) {
1922                                 if ($include_all_cats) {
1923                                         if (db_num_rows($result) > 0) {
1924                                                 print "<option disabled=\"1\">--------</option>";
1925                                         }
1926
1927                                         if ($default_id == 0) {
1928                                                 $is_selected = "selected=\"1\"";
1929                                         } else {
1930                                                 $is_selected = "";
1931                                         }
1932
1933                                         print "<option $is_selected value=\"0\">".__('Uncategorized')."</option>";
1934                                 }
1935                                 print "</select>";
1936                         }
1937                 }
1938
1939         function checkbox_to_sql_bool($val) {
1940                 return ($val == "on") ? "true" : "false";
1941         }
1942
1943         function getFeedCatTitle($id) {
1944                 if ($id == -1) {
1945                         return __("Special");
1946                 } else if ($id < LABEL_BASE_INDEX) {
1947                         return __("Labels");
1948                 } else if ($id > 0) {
1949                         $result = db_query("SELECT ttrss_feed_categories.title
1950                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
1951                                         cat_id = ttrss_feed_categories.id");
1952                         if (db_num_rows($result) == 1) {
1953                                 return db_fetch_result($result, 0, "title");
1954                         } else {
1955                                 return __("Uncategorized");
1956                         }
1957                 } else {
1958                         return "getFeedCatTitle($id) failed";
1959                 }
1960
1961         }
1962
1963         function getFeedIcon($id) {
1964                 switch ($id) {
1965                 case 0:
1966                         return "images/archive.png";
1967                         break;
1968                 case -1:
1969                         return "images/star.png";
1970                         break;
1971                 case -2:
1972                         return "images/feed.png";
1973                         break;
1974                 case -3:
1975                         return "images/fresh.png";
1976                         break;
1977                 case -4:
1978                         return "images/folder.png";
1979                         break;
1980                 case -6:
1981                         return "images/time.png";
1982                         break;
1983                 default:
1984                         if ($id < LABEL_BASE_INDEX) {
1985                                 return "images/label.png";
1986                         } else {
1987                                 if (file_exists(ICONS_DIR . "/$id.ico"))
1988                                         return ICONS_URL . "/$id.ico";
1989                         }
1990                         break;
1991                 }
1992
1993                 return false;
1994         }
1995
1996         function getFeedTitle($id, $cat = false) {
1997                 if ($cat) {
1998                         return getCategoryTitle($id);
1999                 } else if ($id == -1) {
2000                         return __("Starred articles");
2001                 } else if ($id == -2) {
2002                         return __("Published articles");
2003                 } else if ($id == -3) {
2004                         return __("Fresh articles");
2005                 } else if ($id == -4) {
2006                         return __("All articles");
2007                 } else if ($id === 0 || $id === "0") {
2008                         return __("Archived articles");
2009                 } else if ($id == -6) {
2010                         return __("Recently read");
2011                 } else if ($id < LABEL_BASE_INDEX) {
2012                         $label_id = feed_to_label_id($id);
2013                         $result = db_query("SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
2014                         if (db_num_rows($result) == 1) {
2015                                 return db_fetch_result($result, 0, "caption");
2016                         } else {
2017                                 return "Unknown label ($label_id)";
2018                         }
2019
2020                 } else if (is_numeric($id) && $id > 0) {
2021                         $result = db_query("SELECT title FROM ttrss_feeds WHERE id = '$id'");
2022                         if (db_num_rows($result) == 1) {
2023                                 return db_fetch_result($result, 0, "title");
2024                         } else {
2025                                 return "Unknown feed ($id)";
2026                         }
2027                 } else {
2028                         return $id;
2029                 }
2030         }
2031
2032         function uniqid_short() {
2033                 return uniqid(base_convert(rand(), 10, 36));
2034         }
2035
2036         // TODO: less dumb splitting
2037         require_once "functions2.php";
2038
2039 ?>