include/functions.php

   1 <?php
   2         define('EXPECTED_CONFIG_VERSION', 26);
   3         define('SCHEMA_VERSION', 97);
   4
   5         $fetch_last_error = false;
   6
   7         function __autoload($class) {
   8                 $class_file = str_replace("_", "/", strtolower(basename($class)));
   9
  10                 $file = dirname(__FILE__)."/../classes/$class_file.php";
  11
  12                 if (file_exists($file)) {
  13                         require $file;
  14                 }
  15         }
  16
  17         mb_internal_encoding("UTF-8");
  18         date_default_timezone_set('UTC');
  19         if (defined('E_DEPRECATED')) {
  20                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
  21         } else {
  22                 error_reporting(E_ALL & ~E_NOTICE);
  23         }
  24
  25         require_once 'config.php';
  26
  27         if (DB_TYPE == "pgsql") {
  28                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  29         } else {
  30                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  31         }
  32
  33         define('THEME_VERSION_REQUIRED', 1.1);
  34
  35         /**
  36          * Return available translations names.
  37          *
  38          * @access public
  39          * @return array A array of available translations.
  40          */
  41         function get_translations() {
  42                 $tr = array(
  43                                         "auto"  => "Detect automatically",
  44                                         "ca_CA" => "Català",
  45                                         "en_US" => "English",
  46                                         "es_ES" => "Español",
  47                                         "de_DE" => "Deutsch",
  48                                         "fr_FR" => "Français",
  49                                         "hu_HU" => "Magyar (Hungarian)",
  50                                         "it_IT" => "Italiano",
  51                                         "ja_JP" => "日本語 (Japanese)",
  52                                         "nb_NO" => "Norwegian bokmål",
  53                                         "pl_PL" => "Polski",
  54                                         "ru_RU" => "Русский",
  55                                         "pt_BR" => "Portuguese/Brazil",
  56                                         "zh_CN" => "Simplified Chinese");
  57
  58                 return $tr;
  59         }
  60
  61         require_once "lib/accept-to-gettext.php";
  62         require_once "lib/gettext/gettext.inc";
  63
  64         function startup_gettext() {
  65
  66                 # Get locale from Accept-Language header
  67                 $lang = al2gt(array_keys(get_translations()), "text/html");
  68
  69                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
  70                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
  71                 }
  72
  73                 if ($_COOKIE["ttrss_lang"] && $_COOKIE["ttrss_lang"] != "auto") {
  74                         $lang = $_COOKIE["ttrss_lang"];
  75                 }
  76
  77                 /* In login action of mobile version */
  78                 if ($_POST["language"] && defined('MOBILE_VERSION')) {
  79                         $lang = $_POST["language"];
  80                         $_COOKIE["ttrss_lang"] = $lang;
  81                 }
  82
  83                 if ($lang) {
  84                         if (defined('LC_MESSAGES')) {
  85                                 _setlocale(LC_MESSAGES, $lang);
  86                         } else if (defined('LC_ALL')) {
  87                                 _setlocale(LC_ALL, $lang);
  88                         }
  89
  90                         if (defined('MOBILE_VERSION')) {
  91                                 _bindtextdomain("messages", "../locale");
  92                         } else {
  93                                 _bindtextdomain("messages", "locale");
  94                         }
  95
  96                         _textdomain("messages");
  97                         _bind_textdomain_codeset("messages", "UTF-8");
  98                 }
  99         }
 100
 101         startup_gettext();
 102
 103         require_once 'db-prefs.php';
 104         require_once 'version.php';
 105
 106         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
 107
 108         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 109         define('MAGPIE_USER_AGENT', SELF_USER_AGENT);
 110
 111         ini_set('user_agent', SELF_USER_AGENT);
 112
 113         require_once 'lib/pubsubhubbub/publisher.php';
 114
 115         $purifier = false;
 116
 117         $tz_offset = -1;
 118         $utc_tz = new DateTimeZone('UTC');
 119         $schema_version = false;
 120
 121         /**
 122          * Print a timestamped debug message.
 123          *
 124          * @param string $msg The debug message.
 125          * @return void
 126          */
 127         function _debug($msg) {
 128                 if (defined('QUIET') && QUIET) {
 129                         return;
 130                 }
 131                 $ts = strftime("%H:%M:%S", time());
 132                 if (function_exists('posix_getpid')) {
 133                         $ts = "$ts/" . posix_getpid();
 134                 }
 135                 print "[$ts] $msg\n";
 136         } // function _debug
 137
 138         /**
 139          * Purge a feed old posts.
 140          *
 141          * @param mixed $link A database connection.
 142          * @param mixed $feed_id The id of the purged feed.
 143          * @param mixed $purge_interval Olderness of purged posts.
 144          * @param boolean $debug Set to True to enable the debug. False by default.
 145          * @access public
 146          * @return void
 147          */
 148         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 149
 150                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
 151
 152                 $rows = -1;
 153
 154                 $result = db_query($link,
 155                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 156
 157                 $owner_uid = false;
 158
 159                 if (db_num_rows($result) == 1) {
 160                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 161                 }
 162
 163                 if ($purge_interval == -1 || !$purge_interval) {
 164                         if ($owner_uid) {
 165                                 ccache_update($link, $feed_id, $owner_uid);
 166                         }
 167                         return;
 168                 }
 169
 170                 if (!$owner_uid) return;
 171
 172                 if (FORCE_ARTICLE_PURGE == 0) {
 173                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
 174                                 $owner_uid, false);
 175                 } else {
 176                         $purge_unread = true;
 177                         $purge_interval = FORCE_ARTICLE_PURGE;
 178                 }
 179
 180                 if (!$purge_unread) $query_limit = " unread = false AND ";
 181
 182                 if (DB_TYPE == "pgsql") {
 183                         $pg_version = get_pgsql_version($link);
 184
 185                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 186
 187                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 188                                         ttrss_entries.id = ref_id AND
 189                                         marked = false AND
 190                                         feed_id = '$feed_id' AND
 191                                         $query_limit
 192                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 193
 194                         } else {
 195
 196                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
 197                                         USING ttrss_entries
 198                                         WHERE ttrss_entries.id = ref_id AND
 199                                         marked = false AND
 200                                         feed_id = '$feed_id' AND
 201                                         $query_limit
 202                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 203                         }
 204
 205                         $rows = pg_affected_rows($result);
 206
 207                 } else {
 208
 209 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 210                                 marked = false AND feed_id = '$feed_id' AND
 211                                 (SELECT date_updated FROM ttrss_entries WHERE
 212                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 213
 214                         $result = db_query($link, "DELETE FROM ttrss_user_entries
 215                                 USING ttrss_user_entries, ttrss_entries
 216                                 WHERE ttrss_entries.id = ref_id AND
 217                                 marked = false AND
 218                                 feed_id = '$feed_id' AND
 219                                 $query_limit
 220                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 221
 222                         $rows = mysql_affected_rows($link);
 223
 224                 }
 225
 226                 ccache_update($link, $feed_id, $owner_uid);
 227
 228                 if ($debug) {
 229                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 230                 }
 231         } // function purge_feed
 232
 233         function feed_purge_interval($link, $feed_id) {
 234
 235                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
 236                         WHERE id = '$feed_id'");
 237
 238                 if (db_num_rows($result) == 1) {
 239                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 240                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 241
 242                         if ($purge_interval == 0) $purge_interval = get_pref($link,
 243                                 'PURGE_OLD_DAYS', $owner_uid);
 244
 245                         return $purge_interval;
 246
 247                 } else {
 248                         return -1;
 249                 }
 250         }
 251
 252         function purge_orphans($link, $do_output = false) {
 253
 254                 // purge orphaned posts in main content table
 255                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
 256                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 257
 258                 if ($do_output) {
 259                         $rows = db_affected_rows($link, $result);
 260                         _debug("Purged $rows orphaned posts.");
 261                 }
 262         }
 263
 264         function get_feed_update_interval($link, $feed_id) {
 265                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
 266                         ttrss_feeds WHERE id = '$feed_id'");
 267
 268                 if (db_num_rows($result) == 1) {
 269                         $update_interval = db_fetch_result($result, 0, "update_interval");
 270                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 271
 272                         if ($update_interval != 0) {
 273                                 return $update_interval;
 274                         } else {
 275                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 276                         }
 277
 278                 } else {
 279                         return -1;
 280                 }
 281         }
 282
 283         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false) {
 284                 $login = urlencode($login);
 285                 $pass = urlencode($pass);
 286
 287                 global $fetch_last_error;
 288
 289                 if (function_exists('curl_init') && !ini_get("open_basedir")) {
 290                         $ch = curl_init($url);
 291
 292                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
 293                         curl_setopt($ch, CURLOPT_TIMEOUT, 45);
 294                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 295                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 296                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 297                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 298                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 299                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 300                         curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
 301                         curl_setopt($ch, CURLOPT_ENCODING , "gzip");
 302
 303                         if ($post_query) {
 304                                 curl_setopt($ch, CURLOPT_POST, true);
 305                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 306                         }
 307
 308                         if ($login && $pass)
 309                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 310
 311                         $contents = @curl_exec($ch);
 312
 313                         if ($contents === false) {
 314                                 $fetch_last_error = curl_error($ch);
 315                                 curl_close($ch);
 316                                 return false;
 317                         }
 318
 319                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 320                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 321                         curl_close($ch);
 322
 323                         if ($http_code != 200 || $type && strpos($content_type, "$type") === false) {
 324                                 return false;
 325                         }
 326
 327                         return $contents;
 328                 } else {
 329                         if ($login && $pass ){
 330                                 $url_parts = array();
 331
 332                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 333
 334                                 if ($url_parts[1] && $url_parts[2]) {
 335                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 336                                 }
 337                         }
 338
 339                         $data = @file_get_contents($url);
 340
 341                         if (!$data && function_exists('error_get_last')) {
 342                                 $error = error_get_last();
 343                                 $fetch_last_error = $error["message"];
 344                         }
 345                         return $data;
 346                 }
 347
 348         }
 349
 350         /**
 351          * Try to determine the favicon URL for a feed.
 352          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 353          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 354          *
 355          * @param string $url A feed or page URL
 356          * @access public
 357          * @return mixed The favicon URL, or false if none was found.
 358          */
 359         function get_favicon_url($url) {
 360
 361                 $favicon_url = false;
 362
 363                 if ($html = @fetch_file_contents($url)) {
 364
 365                         libxml_use_internal_errors(true);
 366
 367                         $doc = new DOMDocument();
 368                         $doc->loadHTML($html);
 369                         $xpath = new DOMXPath($doc);
 370
 371                         $base = $xpath->query('/html/head/base');
 372                         foreach ($base as $b) {
 373                                 $url = $b->getAttribute("href");
 374                                 break;
 375                         }
 376
 377                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 378                         if (count($entries) > 0) {
 379                                 foreach ($entries as $entry) {
 380                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 381                                         break;
 382                                 }
 383                         }
 384                 }
 385
 386                 if (!$favicon_url)
 387                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 388
 389                 return $favicon_url;
 390         } // function get_favicon_url
 391
 392         function check_feed_favicon($site_url, $feed, $link) {
 393 #               print "FAVICON [$site_url]: $favicon_url\n";
 394
 395                 $icon_file = ICONS_DIR . "/$feed.ico";
 396
 397                 if (!file_exists($icon_file)) {
 398                         $favicon_url = get_favicon_url($site_url);
 399
 400                         if ($favicon_url) {
 401                                 // Limiting to "image" type misses those served with text/plain
 402                                 $contents = fetch_file_contents($favicon_url); // , "image");
 403
 404                                 if ($contents) {
 405                                         // Crude image type matching.
 406                                         // Patterns gleaned from the file(1) source code.
 407                                         if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
 408                                                 // 0       string  \000\000\001\000        MS Windows icon resource
 409                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
 410                                         }
 411                                         elseif (preg_match('/^GIF8/', $contents)) {
 412                                                 // 0       string          GIF8            GIF image data
 413                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
 414                                         }
 415                                         elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
 416                                                 // 0       string          \x89PNG\x0d\x0a\x1a\x0a         PNG image data
 417                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
 418                                         }
 419                                         elseif (preg_match('/^\xff\xd8/', $contents)) {
 420                                                 // 0       beshort         0xffd8          JPEG image data
 421                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
 422                                         }
 423                                         else {
 424                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
 425                                                 $contents = "";
 426                                         }
 427                                 }
 428
 429                                 if ($contents) {
 430                                         $fp = @fopen($icon_file, "w");
 431
 432                                         if ($fp) {
 433                                                 fwrite($fp, $contents);
 434                                                 fclose($fp);
 435                                                 chmod($icon_file, 0644);
 436                                         }
 437                                 }
 438                         }
 439                 }
 440         }
 441
 442         function print_select($id, $default, $values, $attributes = "") {
 443                 print "<select name=\"$id\" id=\"$id\" $attributes>";
 444                 foreach ($values as $v) {
 445                         if ($v == $default)
 446                                 $sel = "selected=\"1\"";
 447                          else
 448                                 $sel = "";
 449
 450                         print "<option value=\"$v\" $sel>$v</option>";
 451                 }
 452                 print "</select>";
 453         }
 454
 455         function print_select_hash($id, $default, $values, $attributes = "") {
 456                 print "<select name=\"$id\" id='$id' $attributes>";
 457                 foreach (array_keys($values) as $v) {
 458                         if ($v == $default)
 459                                 $sel = 'selected="selected"';
 460                          else
 461                                 $sel = "";
 462
 463                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
 464                 }
 465
 466                 print "</select>";
 467         }
 468
 469         function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
 470                 $matches = array();
 471
 472                 foreach ($filters as $filter) {
 473                         $match_any_rule = $filter["match_any_rule"];
 474                         $filter_match = false;
 475
 476                         foreach ($filter["rules"] as $rule) {
 477                                 $match = false;
 478                                 $reg_exp = $rule["reg_exp"];
 479
 480                                 if (!$reg_exp)
 481                                         continue;
 482
 483                                 switch ($rule["type"]) {
 484                                 case "title":
 485                                         $match = @preg_match("/$reg_exp/i", $title);
 486                                         break;
 487                                 case "content":
 488                                         $match = @preg_match("/$reg_exp/i", $content);
 489                                         break;
 490                                 case "both":
 491                                         $match = (@preg_match("/$reg_exp/i", $title) || @preg_match("/$reg_exp/i", $title));
 492                                         break;
 493                                 case "link":
 494                                         $match = @preg_match("/$reg_exp/i", $link);
 495                                         break;
 496                                 case "author":
 497                                         $match = @preg_match("/$reg_exp/i", $author);
 498                                         break;
 499                                 case "tag":
 500                                         $tag_string = join(",", $tags);
 501                                         $match = @preg_match("/$reg_exp/i", $tag_string);
 502                                         break;
 503                                 }
 504
 505                                 if ($match_any_rule) {
 506                                         if ($match) {
 507                                                 $filter_match = true;
 508                                                 break;
 509                                         }
 510                                 } else {
 511                                         $filter_match = $match;
 512                                         if (!$match) {
 513                                                 break;
 514                                         }
 515                                 }
 516                         }
 517
 518                         if ($filter_match) {
 519                                 foreach ($filter["actions"] AS $action) {
 520                                         array_push($matches, $action);
 521                                 }
 522                         }
 523                 }
 524
 525                 return $matches;
 526         }
 527
 528         function find_article_filter($filters, $filter_name) {
 529                 foreach ($filters as $f) {
 530                         if ($f["type"] == $filter_name) {
 531                                 return $f;
 532                         };
 533                 }
 534                 return false;
 535         }
 536
 537         function find_article_filters($filters, $filter_name) {
 538                 $results = array();
 539
 540                 foreach ($filters as $f) {
 541                         if ($f["type"] == $filter_name) {
 542                                 array_push($results, $f);
 543                         };
 544                 }
 545                 return $results;
 546         }
 547
 548         function calculate_article_score($filters) {
 549                 $score = 0;
 550
 551                 foreach ($filters as $f) {
 552                         if ($f["type"] == "score") {
 553                                 $score += $f["param"];
 554                         };
 555                 }
 556                 return $score;
 557         }
 558
 559         function assign_article_to_labels($link, $id, $filters, $owner_uid) {
 560                 foreach ($filters as $f) {
 561                         if ($f["type"] == "label") {
 562                                 label_add_article($link, $id, $f["param"], $owner_uid);
 563                         };
 564                 }
 565         }
 566
 567         function getmicrotime() {
 568                 list($usec, $sec) = explode(" ",microtime());
 569                 return ((float)$usec + (float)$sec);
 570         }
 571
 572         function print_radio($id, $default, $true_is, $values, $attributes = "") {
 573                 foreach ($values as $v) {
 574
 575                         if ($v == $default)
 576                                 $sel = "checked";
 577                          else
 578                                 $sel = "";
 579
 580                         if ($v == $true_is) {
 581                                 $sel .= " value=\"1\"";
 582                         } else {
 583                                 $sel .= " value=\"0\"";
 584                         }
 585
 586                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
 587                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 588
 589                 }
 590         }
 591
 592         function initialize_user_prefs($link, $uid, $profile = false) {
 593
 594                 $uid = db_escape_string($uid);
 595
 596                 if (!$profile) {
 597                         $profile = "NULL";
 598                         $profile_qpart = "AND profile IS NULL";
 599                 } else {
 600                         $profile_qpart = "AND profile = '$profile'";
 601                 }
 602
 603                 if (get_schema_version($link) < 63) $profile_qpart = "";
 604
 605                 db_query($link, "BEGIN");
 606
 607                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
 608
 609                 $u_result = db_query($link, "SELECT pref_name
 610                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
 611
 612                 $active_prefs = array();
 613
 614                 while ($line = db_fetch_assoc($u_result)) {
 615                         array_push($active_prefs, $line["pref_name"]);
 616                 }
 617
 618                 while ($line = db_fetch_assoc($result)) {
 619                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 620 //                              print "adding " . $line["pref_name"] . "<br>";
 621
 622                                 if (get_schema_version($link) < 63) {
 623                                         db_query($link, "INSERT INTO ttrss_user_prefs
 624                                                 (owner_uid,pref_name,value) VALUES
 625                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 626
 627                                 } else {
 628                                         db_query($link, "INSERT INTO ttrss_user_prefs
 629                                                 (owner_uid,pref_name,value, profile) VALUES
 630                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
 631                                 }
 632
 633                         }
 634                 }
 635
 636                 db_query($link, "COMMIT");
 637
 638         }
 639
 640         function get_ssl_certificate_id() {
 641                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
 642                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
 643                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
 644                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
 645                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
 646                 }
 647                 return "";
 648         }
 649
 650         function authenticate_user($link, $login, $password, $check_only = false) {
 651
 652                 if (!SINGLE_USER_MODE) {
 653
 654                         $user_id = false;
 655                         $modules = explode(",", AUTH_MODULES);
 656
 657                         foreach ($modules as $module) {
 658                                 $module_class = "auth_$module";
 659                                 if (class_exists($module_class)) {
 660                                         $authenticator = new $module_class($link);
 661
 662                                         $user_id = (int) $authenticator->authenticate($login, $password);
 663
 664                                         if ($user_id) {
 665                                                 $_SESSION["auth_module"] = $module;
 666                                                 break;
 667                                         }
 668
 669                                 } else {
 670                                         print T_sprintf("Fatal: authentication module %s not found.", $module);
 671                                         die;
 672                                 }
 673                         }
 674
 675                         if ($user_id && !$check_only) {
 676                                 $_SESSION["uid"] = $user_id;
 677
 678                                 $result = db_query($link, "SELECT login,access_level,pwd_hash FROM ttrss_users
 679                                         WHERE id = '$user_id'");
 680
 681                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
 682                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 683                                 $_SESSION["csrf_token"] = sha1(uniqid(rand(), true));
 684
 685                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 686                                         $_SESSION["uid"]);
 687
 688                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 689                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
 690
 691                                 $_SESSION["last_version_check"] = time();
 692
 693                                 initialize_user_prefs($link, $_SESSION["uid"]);
 694
 695                                 return true;
 696                         }
 697
 698                         return false;
 699
 700                 } else {
 701
 702                         $_SESSION["uid"] = 1;
 703                         $_SESSION["name"] = "admin";
 704                         $_SESSION["access_level"] = 10;
 705
 706                         $_SESSION["hide_hello"] = true;
 707                         $_SESSION["hide_logout"] = true;
 708
 709                         $_SESSION["auth_module"] = false;
 710
 711                         if (!$_SESSION["csrf_token"]) {
 712                                 $_SESSION["csrf_token"] = sha1(uniqid(rand(), true));
 713                         }
 714
 715                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 716
 717                         initialize_user_prefs($link, $_SESSION["uid"]);
 718
 719                         return true;
 720                 }
 721         }
 722
 723         function make_password($length = 8) {
 724
 725                 $password = "";
 726                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
 727
 728         $i = 0;
 729
 730                 while ($i < $length) {
 731                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 732
 733                         if (!strstr($password, $char)) {
 734                                 $password .= $char;
 735                                 $i++;
 736                         }
 737                 }
 738                 return $password;
 739         }
 740
 741         // this is called after user is created to initialize default feeds, labels
 742         // or whatever else
 743
 744         // user preferences are checked on every login, not here
 745
 746         function initialize_user($link, $uid) {
 747
 748                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 749                         values ('$uid', 'Tiny Tiny RSS: New Releases',
 750                         'http://tt-rss.org/releases.rss')");
 751
 752                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 753                         values ('$uid', 'Tiny Tiny RSS: Forum',
 754                                 'http://tt-rss.org/forum/rss.php')");
 755         }
 756
 757         function logout_user() {
 758                 session_destroy();
 759                 if (isset($_COOKIE[session_name()])) {
 760                    setcookie(session_name(), '', time()-42000, '/');
 761                 }
 762         }
 763
 764         function validate_csrf($csrf_token) {
 765                 return $csrf_token == $_SESSION['csrf_token'];
 766         }
 767
 768         function validate_session($link) {
 769                 if (SINGLE_USER_MODE) return true;
 770
 771                 $check_ip = $_SESSION['ip_address'];
 772
 773                 switch (SESSION_CHECK_ADDRESS) {
 774                 case 0:
 775                         $check_ip = '';
 776                         break;
 777                 case 1:
 778                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
 779                         break;
 780                 case 2:
 781                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
 782                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
 783                         break;
 784                 };
 785
 786                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) {
 787                         $_SESSION["login_error_msg"] =
 788                                 __("Session failed to validate (incorrect IP)");
 789                         return false;
 790                 }
 791
 792                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
 793                         return false;
 794
 795                 if ($_SESSION["uid"]) {
 796
 797                         $result = db_query($link,
 798                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
 799
 800                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
 801
 802                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
 803                                 return false;
 804                         }
 805                 }
 806
 807 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
 808
 809                         //print_r($_SESSION);
 810
 811                         if (time() > $_SESSION["cookie_lifetime"]) {
 812                                 return false;
 813                         }
 814                 } */
 815
 816                 return true;
 817         }
 818
 819         function login_sequence($link, $login_form = 0) {
 820                 if (SINGLE_USER_MODE) {
 821                         return authenticate_user($link, "admin", null);
 822                 } else {
 823                         if (!$_SESSION["uid"] || !validate_session($link)) {
 824
 825                                 if (AUTH_AUTO_LOGIN && authenticate_user($link, null, null)) {
 826                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 827                                 } else {
 828                                          authenticate_user($link, null, null, true);
 829                                 }
 830
 831                                 if (!$_SESSION["uid"]) render_login_form($link, $login_form);
 832
 833                         } else {
 834                                 /* bump login timestamp */
 835                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 836                                         $_SESSION["uid"]);
 837
 838                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
 839                                         setcookie("ttrss_lang", $_SESSION["language"],
 840                                                 time() + SESSION_COOKIE_LIFETIME);
 841                                 }
 842                         }
 843                 }
 844         }
 845
 846
 847         /* function login_sequence($link, $mobile = false) {
 848                 $_SESSION["prefs_cache"] = array();
 849
 850                 if (!SINGLE_USER_MODE) {
 851
 852                         $login_action = $_POST["login_action"];
 853
 854                         # try to authenticate user if called from login form
 855                         if ($login_action == "do_login") {
 856                                 $login = db_escape_string($_POST["login"]);
 857                                 $password = $_POST["password"];
 858                                 $remember_me = $_POST["remember_me"];
 859
 860                                 if (authenticate_user($link, $login, $password)) {
 861                                         $_POST["password"] = "";
 862
 863                                         $_SESSION["language"] = $_POST["language"];
 864                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 865                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
 866
 867                                         if ($_POST["profile"]) {
 868
 869                                                 $profile = db_escape_string($_POST["profile"]);
 870
 871                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
 872                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
 873
 874                                                 if (db_num_rows($result) != 0) {
 875                                                         $_SESSION["profile"] = $profile;
 876                                                         $_SESSION["prefs_cache"] = array();
 877                                                 }
 878                                         }
 879
 880                                         if ($_REQUEST['return']) {
 881                                                 header("Location: " . $_REQUEST['return']);
 882                                         } else {
 883                                                 header("Location: " . $_SERVER["REQUEST_URI"]);
 884                                         }
 885
 886                                         exit;
 887
 888                                         return;
 889                                 } else {
 890                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
 891                                 }
 892                         }
 893
 894                         if (!$_SESSION["uid"] || !validate_session($link)) {
 895
 896                                 if (AUTH_AUTO_LOGIN && authenticate_user($link, null, null)) {
 897                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 898                                 } else {
 899                                          authenticate_user($link, null, null, true);
 900                                     render_login_form($link, $mobile);
 901                                     exit;
 902                                 }
 903                         } else {
 904                                 // bump login timestamp
 905                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 906                                         $_SESSION["uid"]);
 907
 908                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
 909                                         setcookie("ttrss_lang", $_SESSION["language"],
 910                                                 time() + SESSION_COOKIE_LIFETIME);
 911                                 }
 912
 913                                 // try to remove possible duplicates from feed counter cache
 914 //                              ccache_cleanup($link, $_SESSION["uid"]);
 915                         }
 916
 917                 } else {
 918                         return authenticate_user($link, "admin", null);
 919                 }
 920         } */
 921
 922         function truncate_string($str, $max_len, $suffix = '&hellip;') {
 923                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
 924                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
 925                 } else {
 926                         return $str;
 927                 }
 928         }
 929
 930         function theme_image($link, $filename) {
 931                 if ($link) {
 932                         $theme_path = get_user_theme_path($link);
 933
 934                         if ($theme_path && is_file($theme_path.$filename)) {
 935                                 return $theme_path.$filename;
 936                         } else {
 937                                 return $filename;
 938                         }
 939                 } else {
 940                         return $filename;
 941                 }
 942         }
 943
 944         function get_user_theme($link) {
 945
 946                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
 947                         $theme_name = get_pref($link, "_THEME_ID");
 948                         if (is_dir("themes/$theme_name")) {
 949                                 return $theme_name;
 950                         } else {
 951                                 return '';
 952                         }
 953                 } else {
 954                         return '';
 955                 }
 956
 957         }
 958
 959         function get_user_theme_path($link) {
 960                 $theme_path = '';
 961
 962                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
 963                         $theme_name = get_pref($link, "_THEME_ID");
 964
 965                         if ($theme_name && is_dir("themes/$theme_name")) {
 966                                 $theme_path = "themes/$theme_name/";
 967                         } else {
 968                                 $theme_name = '';
 969                         }
 970                 } else {
 971                         $theme_path = '';
 972                 }
 973
 974                 if ($theme_path) {
 975                         if (is_file("$theme_path/theme.ini")) {
 976                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
 977                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
 978                                         return $theme_path;
 979                                 }
 980                         }
 981                 }
 982                 return '';
 983         }
 984
 985         function get_user_theme_options($link) {
 986                 $t = get_user_theme_path($link);
 987
 988                 if ($t) {
 989                         if (is_file("$t/theme.ini")) {
 990                                 $ini = parse_ini_file("$t/theme.ini", true);
 991                                 if ($ini['theme']['version']) {
 992                                         return $ini['theme']['options'];
 993                                 }
 994                         }
 995                 }
 996                 return '';
 997         }
 998
 999         function print_theme_includes($link) {
1000
1001                 $t = get_user_theme_path($link);
1002                 $time = time();
1003
1004                 if ($t) {
1005                         print "<link rel=\"stylesheet\" type=\"text/css\"
1006                                 href=\"$t/theme.css?$time \">";
1007                         if (file_exists("$t/theme.js")) {
1008                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
1009                                         </script>";
1010                         }
1011                 }
1012         }
1013
1014         function get_all_themes() {
1015                 $themes = glob("themes/*");
1016
1017                 asort($themes);
1018
1019                 $rv = array();
1020
1021                 foreach ($themes as $t) {
1022                         if (is_file("$t/theme.ini")) {
1023                                 $ini = parse_ini_file("$t/theme.ini", true);
1024                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
1025                                                         !$ini['theme']['disabled']) {
1026                                         $entry = array();
1027                                         $entry["path"] = $t;
1028                                         $entry["base"] = basename($t);
1029                                         $entry["name"] = $ini['theme']['name'];
1030                                         $entry["version"] = $ini['theme']['version'];
1031                                         $entry["author"] = $ini['theme']['author'];
1032                                         $entry["options"] = $ini['theme']['options'];
1033                                         array_push($rv, $entry);
1034                                 }
1035                         }
1036                 }
1037
1038                 return $rv;
1039         }
1040
1041         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
1042
1043                 try {
1044                         $source_tz = new DateTimeZone($source_tz);
1045                 } catch (Exception $e) {
1046                         $source_tz = new DateTimeZone('UTC');
1047                 }
1048
1049                 try {
1050                         $dest_tz = new DateTimeZone($dest_tz);
1051                 } catch (Exception $e) {
1052                         $dest_tz = new DateTimeZone('UTC');
1053                 }
1054
1055                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
1056                 return $dt->format('U') + $dest_tz->getOffset($dt);
1057         }
1058
1059         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
1060                                         $no_smart_dt = false) {
1061
1062                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1063                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
1064
1065                 global $utc_tz;
1066                 global $tz_offset;
1067
1068                 # We store date in UTC internally
1069                 $dt = new DateTime($timestamp, $utc_tz);
1070
1071                 if ($tz_offset == -1) {
1072
1073                         $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
1074
1075                         try {
1076                                 $user_tz = new DateTimeZone($user_tz_string);
1077                         } catch (Exception $e) {
1078                                 $user_tz = $utc_tz;
1079                         }
1080
1081                         $tz_offset = $user_tz->getOffset($dt);
1082                 }
1083
1084                 $user_timestamp = $dt->format('U') + $tz_offset;
1085
1086                 if (!$no_smart_dt) {
1087                         return smart_date_time($link, $user_timestamp,
1088                                 $tz_offset, $owner_uid);
1089                 } else {
1090                         if ($long)
1091                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
1092                         else
1093                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
1094
1095                         return date($format, $user_timestamp);
1096                 }
1097         }
1098
1099         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
1100                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1101
1102                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
1103                         return date("G:i", $timestamp);
1104                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
1105                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
1106                         return date($format, $timestamp);
1107                 } else {
1108                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
1109                         return date($format, $timestamp);
1110                 }
1111         }
1112
1113         function sql_bool_to_bool($s) {
1114                 if ($s == "t" || $s == "1" || $s == "true") {
1115                         return true;
1116                 } else {
1117                         return false;
1118                 }
1119         }
1120
1121         function bool_to_sql_bool($s) {
1122                 if ($s) {
1123                         return "true";
1124                 } else {
1125                         return "false";
1126                 }
1127         }
1128
1129         // Session caching removed due to causing wrong redirects to upgrade
1130         // script when get_schema_version() is called on an obsolete session
1131         // created on a previous schema version.
1132         function get_schema_version($link, $nocache = false) {
1133                 global $schema_version;
1134
1135                 if (!$schema_version) {
1136                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
1137                         $version = db_fetch_result($result, 0, "schema_version");
1138                         $schema_version = $version;
1139                         return $version;
1140                 } else {
1141                         return $schema_version;
1142                 }
1143         }
1144
1145         function sanity_check($link) {
1146                 require_once 'errors.php';
1147
1148                 $error_code = 0;
1149                 $schema_version = get_schema_version($link, true);
1150
1151                 if ($schema_version != SCHEMA_VERSION) {
1152                         $error_code = 5;
1153                 }
1154
1155                 if (DB_TYPE == "mysql") {
1156                         $result = db_query($link, "SELECT true", false);
1157                         if (db_num_rows($result) != 1) {
1158                                 $error_code = 10;
1159                         }
1160                 }
1161
1162                 if (db_escape_string("testTEST") != "testTEST") {
1163                         $error_code = 12;
1164                 }
1165
1166                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1167         }
1168
1169         function file_is_locked($filename) {
1170                 if (function_exists('flock')) {
1171                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1172                         if ($fp) {
1173                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1174                                         flock($fp, LOCK_UN);
1175                                         fclose($fp);
1176                                         return false;
1177                                 }
1178                                 fclose($fp);
1179                                 return true;
1180                         } else {
1181                                 return false;
1182                         }
1183                 }
1184                 return true; // consider the file always locked and skip the test
1185         }
1186
1187         function make_lockfile($filename) {
1188                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1189
1190                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1191                         if (function_exists('posix_getpid')) {
1192                                 fwrite($fp, posix_getpid() . "\n");
1193                         }
1194                         return $fp;
1195                 } else {
1196                         return false;
1197                 }
1198         }
1199
1200         function make_stampfile($filename) {
1201                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1202
1203                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1204                         fwrite($fp, time() . "\n");
1205                         flock($fp, LOCK_UN);
1206                         fclose($fp);
1207                         return true;
1208                 } else {
1209                         return false;
1210                 }
1211         }
1212
1213         function sql_random_function() {
1214                 if (DB_TYPE == "mysql") {
1215                         return "RAND()";
1216                 } else {
1217                         return "RANDOM()";
1218                 }
1219         }
1220
1221         function catchup_feed($link, $feed, $cat_view, $owner_uid = false, $max_id = false) {
1222
1223                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1224
1225                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1226
1227                         $ref_check_qpart = ($max_id &&
1228                                 !get_pref($link, 'REVERSE_HEADLINES')) ? "ref_id <= '$max_id'" : "true";
1229
1230                         if (is_numeric($feed)) {
1231                                 if ($cat_view) {
1232
1233                                         if ($feed >= 0) {
1234
1235                                                 if ($feed > 0) {
1236                                                         $children = getChildCategories($link, $feed, $owner_uid);
1237                                                         array_push($children, $feed);
1238
1239                                                         $children = join(",", $children);
1240
1241                                                         $cat_qpart = "cat_id IN ($children)";
1242                                                 } else {
1243                                                         $cat_qpart = "cat_id IS NULL";
1244                                                 }
1245
1246                                                 db_query($link, "UPDATE ttrss_user_entries
1247                                                         SET unread = false,last_read = NOW()
1248                                                         WHERE feed_id IN (SELECT id FROM ttrss_feeds WHERE $cat_qpart)
1249                                                         AND $ref_check_qpart
1250                                                         AND owner_uid = $owner_uid");
1251
1252                                         } else if ($feed == -2) {
1253
1254                                                 db_query($link, "UPDATE ttrss_user_entries
1255                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1256                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
1257                                                                 AND $ref_check_qpart
1258                                                                 AND unread = true AND owner_uid = $owner_uid");
1259                                         }
1260
1261                                 } else if ($feed > 0) {
1262
1263                                         db_query($link, "UPDATE ttrss_user_entries
1264                                                         SET unread = false,last_read = NOW()
1265                                                         WHERE feed_id = '$feed'
1266                                                         AND $ref_check_qpart
1267                                                         AND owner_uid = $owner_uid");
1268
1269                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
1270
1271                                         if ($feed == -1) {
1272                                                 db_query($link, "UPDATE ttrss_user_entries
1273                                                         SET unread = false,last_read = NOW()
1274                                                         WHERE marked = true
1275                                                         AND $ref_check_qpart
1276                                                         AND owner_uid = $owner_uid");
1277                                         }
1278
1279                                         if ($feed == -2) {
1280                                                 db_query($link, "UPDATE ttrss_user_entries
1281                                                         SET unread = false,last_read = NOW()
1282                                                         WHERE published = true
1283                                                         AND $ref_check_qpart
1284                                                         AND owner_uid = $owner_uid");
1285                                         }
1286
1287                                         if ($feed == -3) {
1288
1289                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
1290
1291                                                 if (DB_TYPE == "pgsql") {
1292                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
1293                                                 } else {
1294                                                         $match_part = "updated > DATE_SUB(NOW(),
1295                                                                 INTERVAL $intl HOUR) ";
1296                                                 }
1297
1298                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
1299                                                         ttrss_user_entries WHERE $match_part AND
1300                                                         unread = true AND
1301                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
1302                                                         owner_uid = $owner_uid");
1303
1304                                                 $affected_ids = array();
1305
1306                                                 while ($line = db_fetch_assoc($result)) {
1307                                                         array_push($affected_ids, $line["id"]);
1308                                                 }
1309
1310                                                 catchupArticlesById($link, $affected_ids, 0);
1311                                         }
1312
1313                                         if ($feed == -4) {
1314                                                 db_query($link, "UPDATE ttrss_user_entries
1315                                                         SET unread = false,last_read = NOW()
1316                                                         WHERE $ref_check_qpart AND owner_uid = $owner_uid");
1317                                         }
1318
1319                                 } else if ($feed < -10) { // label
1320
1321                                         $label_id = -$feed - 11;
1322
1323                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
1324                                                 SET unread = false, last_read = NOW()
1325                                                         WHERE label_id = '$label_id' AND unread = true
1326                                                         AND $ref_check_qpart
1327                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
1328
1329                                 }
1330
1331                                 ccache_update($link, $feed, $owner_uid, $cat_view);
1332
1333                         } else { // tag
1334                                 db_query($link, "BEGIN");
1335
1336                                 $tag_name = db_escape_string($feed);
1337
1338                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
1339                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
1340
1341                                 while ($line = db_fetch_assoc($result)) {
1342                                         db_query($link, "UPDATE ttrss_user_entries SET
1343                                                 unread = false, last_read = NOW()
1344                                                 WHERE $ref_check_qpart AND int_id = " . $line["post_int_id"]);
1345                                 }
1346                                 db_query($link, "COMMIT");
1347                         }
1348         }
1349
1350         function getAllCounters($link, $omode = "flc", $active_feed = false) {
1351
1352                 if (!$omode) $omode = "flc";
1353
1354                 $data = getGlobalCounters($link);
1355
1356                 $data = array_merge($data, getVirtCounters($link));
1357
1358                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
1359                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
1360                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
1361                 if (strchr($omode, "c")) $data = array_merge($data, getCategoryCounters($link));
1362
1363                 return $data;
1364         }
1365
1366         function getCategoryTitle($link, $cat_id) {
1367
1368                 if ($cat_id == -1) {
1369                         return __("Special");
1370                 } else if ($cat_id == -2) {
1371                         return __("Labels");
1372                 } else {
1373
1374                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
1375                                 id = '$cat_id'");
1376
1377                         if (db_num_rows($result) == 1) {
1378                                 return db_fetch_result($result, 0, "title");
1379                         } else {
1380                                 return __("Uncategorized");
1381                         }
1382                 }
1383         }
1384
1385
1386         function getCategoryCounters($link) {
1387                 $ret_arr = array();
1388
1389                 /* Labels category */
1390
1391                 $cv = array("id" => -2, "kind" => "cat",
1392                         "counter" => getCategoryUnread($link, -2));
1393
1394                 array_push($ret_arr, $cv);
1395
1396                 $result = db_query($link, "SELECT id AS cat_id, value AS unread,
1397                         (SELECT COUNT(id) FROM ttrss_feed_categories AS c2
1398                                 WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
1399                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
1400                         WHERE ttrss_cat_counters_cache.feed_id = id AND
1401                         ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid AND
1402                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1403
1404                 while ($line = db_fetch_assoc($result)) {
1405                         $line["cat_id"] = (int) $line["cat_id"];
1406
1407                         if ($line["num_children"] > 0) {
1408                                 $child_counter = getCategoryChildrenUnread($link, $line["cat_id"], $_SESSION["uid"]);
1409                         } else {
1410                                 $child_counter = 0;
1411                         }
1412
1413                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
1414                                 "counter" => $line["unread"] + $child_counter);
1415
1416                         array_push($ret_arr, $cv);
1417                 }
1418
1419                 /* Special case: NULL category doesn't actually exist in the DB */
1420
1421                 $cv = array("id" => 0, "kind" => "cat",
1422                         "counter" => (int) ccache_find($link, 0, $_SESSION["uid"], true));
1423
1424                 array_push($ret_arr, $cv);
1425
1426                 return $ret_arr;
1427         }
1428
1429         // only accepts real cats (>= 0)
1430         function getCategoryChildrenUnread($link, $cat, $owner_uid = false) {
1431                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1432
1433                 $result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
1434                                 AND owner_uid = $owner_uid");
1435
1436                 $unread = 0;
1437
1438                 while ($line = db_fetch_assoc($result)) {
1439                         $unread += getCategoryUnread($link, $line["id"], $owner_uid);
1440                         $unread += getCategoryChildrenUnread($link, $line["id"], $owner_uid);
1441                 }
1442
1443                 return $unread;
1444         }
1445
1446         function getCategoryUnread($link, $cat, $owner_uid = false) {
1447
1448                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1449
1450                 if ($cat >= 0) {
1451
1452                         if ($cat != 0) {
1453                                 $cat_query = "cat_id = '$cat'";
1454                         } else {
1455                                 $cat_query = "cat_id IS NULL";
1456                         }
1457
1458                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
1459                                         AND owner_uid = " . $owner_uid);
1460
1461                         $cat_feeds = array();
1462                         while ($line = db_fetch_assoc($result)) {
1463                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
1464                         }
1465
1466                         if (count($cat_feeds) == 0) return 0;
1467
1468                         $match_part = implode(" OR ", $cat_feeds);
1469
1470                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
1471                                 FROM ttrss_user_entries
1472                                 WHERE   unread = true AND ($match_part)
1473                                 AND owner_uid = " . $owner_uid);
1474
1475                         $unread = 0;
1476
1477                         # this needs to be rewritten
1478                         while ($line = db_fetch_assoc($result)) {
1479                                 $unread += $line["unread"];
1480                         }
1481
1482                         return $unread;
1483                 } else if ($cat == -1) {
1484                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
1485                 } else if ($cat == -2) {
1486
1487                         $result = db_query($link, "
1488                                 SELECT COUNT(unread) AS unread FROM
1489                                         ttrss_user_entries, ttrss_user_labels2
1490                                 WHERE article_id = ref_id AND unread = true
1491                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
1492
1493                         $unread = db_fetch_result($result, 0, "unread");
1494
1495                         return $unread;
1496
1497                 }
1498         }
1499
1500         function getFeedUnread($link, $feed, $is_cat = false) {
1501                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
1502         }
1503
1504         function getLabelUnread($link, $label_id, $owner_uid = false) {
1505                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1506
1507                 $result = db_query($link, "SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
1508                         WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
1509
1510                 if (db_num_rows($result) != 0) {
1511                         return db_fetch_result($result, 0, "unread");
1512                 } else {
1513                         return 0;
1514                 }
1515         }
1516
1517         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
1518                 $owner_uid = false) {
1519
1520                 $n_feed = (int) $feed;
1521                 $need_entries = false;
1522
1523                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1524
1525                 if ($unread_only) {
1526                         $unread_qpart = "unread = true";
1527                 } else {
1528                         $unread_qpart = "true";
1529                 }
1530
1531                 if ($is_cat) {
1532                         return getCategoryUnread($link, $n_feed, $owner_uid);
1533                 } else if ($n_feed == -6) {
1534                         return 0;
1535                 } else if ($feed != "0" && $n_feed == 0) {
1536
1537                         $feed = db_escape_string($feed);
1538
1539                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
1540                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1541                                         AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
1542                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1543                         return db_fetch_result($result, 0, "count");
1544
1545                 } else if ($n_feed == -1) {
1546                         $match_part = "marked = true";
1547                 } else if ($n_feed == -2) {
1548                         $match_part = "published = true";
1549                 } else if ($n_feed == -3) {
1550                         $match_part = "unread = true AND score >= 0";
1551
1552                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
1553
1554                         if (DB_TYPE == "pgsql") {
1555                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
1556                         } else {
1557                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1558                         }
1559
1560                         $need_entries = true;
1561
1562                 } else if ($n_feed == -4) {
1563                         $match_part = "true";
1564                 } else if ($n_feed >= 0) {
1565
1566                         if ($n_feed != 0) {
1567                                 $match_part = "feed_id = '$n_feed'";
1568                         } else {
1569                                 $match_part = "feed_id IS NULL";
1570                         }
1571
1572                 } else if ($feed < -10) {
1573
1574                         $label_id = -$feed - 11;
1575
1576                         return getLabelUnread($link, $label_id, $owner_uid);
1577
1578                 }
1579
1580                 if ($match_part) {
1581
1582                         if ($need_entries) {
1583                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
1584                                 $from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
1585                         } else {
1586                                 $from_qpart = "ttrss_user_entries";
1587                         }
1588
1589                         $query = "SELECT count(int_id) AS unread
1590                                 FROM $from_qpart WHERE
1591                                 $unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1592
1593                         //echo "[$feed/$query]\n";
1594
1595                         $result = db_query($link, $query);
1596
1597                 } else {
1598
1599                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
1600                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1601                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1602                                 AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
1603                 }
1604
1605                 $unread = db_fetch_result($result, 0, "unread");
1606
1607                 return $unread;
1608         }
1609
1610         function getGlobalUnread($link, $user_id = false) {
1611
1612                 if (!$user_id) {
1613                         $user_id = $_SESSION["uid"];
1614                 }
1615
1616                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1617                         WHERE owner_uid = '$user_id' AND feed_id > 0");
1618
1619                 $c_id = db_fetch_result($result, 0, "c_id");
1620
1621                 return $c_id;
1622         }
1623
1624         function getGlobalCounters($link, $global_unread = -1) {
1625                 $ret_arr = array();
1626
1627                 if ($global_unread == -1) {
1628                         $global_unread = getGlobalUnread($link);
1629                 }
1630
1631                 $cv = array("id" => "global-unread",
1632                         "counter" => (int) $global_unread);
1633
1634                 array_push($ret_arr, $cv);
1635
1636                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
1637                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1638
1639                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1640
1641                 $cv = array("id" => "subscribed-feeds",
1642                         "counter" => (int) $subscribed_feeds);
1643
1644                 array_push($ret_arr, $cv);
1645
1646                 return $ret_arr;
1647         }
1648
1649         function getTagCounters($link) {
1650
1651                 $ret_arr = array();
1652
1653                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
1654                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1655                                 AND ref_id = id AND unread = true)) AS count FROM ttrss_tags
1656                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
1657                                 ORDER BY count DESC LIMIT 55");
1658
1659                 $tags = array();
1660
1661                 while ($line = db_fetch_assoc($result)) {
1662                         $tags[$line["tag_name"]] += $line["count"];
1663                 }
1664
1665                 foreach (array_keys($tags) as $tag) {
1666                         $unread = $tags[$tag];
1667                         $tag = htmlspecialchars($tag);
1668
1669                         $cv = array("id" => $tag,
1670                                 "kind" => "tag",
1671                                 "counter" => $unread);
1672
1673                         array_push($ret_arr, $cv);
1674                 }
1675
1676                 return $ret_arr;
1677         }
1678
1679         function getVirtCounters($link) {
1680
1681                 $ret_arr = array();
1682
1683                 for ($i = 0; $i >= -4; $i--) {
1684
1685                         $count = getFeedUnread($link, $i);
1686
1687                         $cv = array("id" => $i,
1688                                 "counter" => (int) $count);
1689
1690 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1691 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
1692
1693                         array_push($ret_arr, $cv);
1694                 }
1695
1696                 return $ret_arr;
1697         }
1698
1699         function getLabelCounters($link, $descriptions = false) {
1700
1701                 $ret_arr = array();
1702
1703                 $owner_uid = $_SESSION["uid"];
1704
1705                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
1706                         WHERE owner_uid = '$owner_uid'");
1707
1708                 while ($line = db_fetch_assoc($result)) {
1709
1710                         $id = -$line["id"] - 11;
1711
1712                         $label_name = $line["caption"];
1713                         $count = getFeedUnread($link, $id);
1714
1715                         $cv = array("id" => $id,
1716                                 "counter" => (int) $count);
1717
1718                         if ($descriptions)
1719                                 $cv["description"] = $label_name;
1720
1721 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1722 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
1723
1724                         array_push($ret_arr, $cv);
1725                 }
1726
1727                 return $ret_arr;
1728         }
1729
1730         function getFeedCounters($link, $active_feed = false) {
1731
1732                 $ret_arr = array();
1733
1734                 $query = "SELECT ttrss_feeds.id,
1735                                 ttrss_feeds.title,
1736                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1737                                 last_error, value AS count
1738                         FROM ttrss_feeds, ttrss_counters_cache
1739                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1740                                 AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
1741                                 AND ttrss_counters_cache.feed_id = id";
1742
1743                 $result = db_query($link, $query);
1744                 $fctrs_modified = false;
1745
1746                 while ($line = db_fetch_assoc($result)) {
1747
1748                         $id = $line["id"];
1749                         $count = $line["count"];
1750                         $last_error = htmlspecialchars($line["last_error"]);
1751
1752                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
1753
1754                         $has_img = feed_has_icon($id);
1755
1756                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1757                                 $last_updated = '';
1758
1759                         $cv = array("id" => $id,
1760                                 "updated" => $last_updated,
1761                                 "counter" => (int) $count,
1762                                 "has_img" => (int) $has_img);
1763
1764                         if ($last_error)
1765                                 $cv["error"] = $last_error;
1766
1767 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1768 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
1769
1770                         if ($active_feed && $id == $active_feed)
1771                                 $cv["title"] = truncate_string($line["title"], 30);
1772
1773                         array_push($ret_arr, $cv);
1774
1775                 }
1776
1777                 return $ret_arr;
1778         }
1779
1780         function get_pgsql_version($link) {
1781                 $result = db_query($link, "SELECT version() AS version");
1782                 $version = explode(" ", db_fetch_result($result, 0, "version"));
1783                 return $version[1];
1784         }
1785
1786         /**
1787          * @return array (code => Status code, message => error message if available)
1788          *
1789          *                 0 - OK, Feed already exists
1790          *                 1 - OK, Feed added
1791          *                 2 - Invalid URL
1792          *                 3 - URL content is HTML, no feeds available
1793          *                 4 - URL content is HTML which contains multiple feeds.
1794          *                     Here you should call extractfeedurls in rpc-backend
1795          *                     to get all possible feeds.
1796          *                 5 - Couldn't download the URL content.
1797          */
1798         function subscribe_to_feed($link, $url, $cat_id = 0,
1799                         $auth_login = '', $auth_pass = '', $need_auth = false) {
1800
1801                 global $fetch_last_error;
1802
1803                 require_once "include/rssfuncs.php";
1804
1805                 $url = fix_url($url);
1806
1807                 if (!$url || !validate_feed_url($url)) return array("code" => 2);
1808
1809                 $update_method = 0;
1810
1811                 $contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
1812
1813                 if (!$contents) {
1814                         return array("code" => 5, "message" => $fetch_last_error);
1815                 }
1816
1817                 if (is_html($contents)) {
1818                         $feedUrls = get_feeds_from_html($url, $contents);
1819
1820                         if (count($feedUrls) == 0) {
1821                                 return array("code" => 3);
1822                         } else if (count($feedUrls) > 1) {
1823                                 return array("code" => 4, "feeds" => $feedUrls);
1824                         }
1825                         //use feed url as new URL
1826                         $url = key($feedUrls);
1827                 }
1828
1829                 if ($cat_id == "0" || !$cat_id) {
1830                         $cat_qpart = "NULL";
1831                 } else {
1832                         $cat_qpart = "'$cat_id'";
1833                 }
1834
1835                 $result = db_query($link,
1836                         "SELECT id FROM ttrss_feeds
1837                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1838
1839                 if (db_num_rows($result) == 0) {
1840                         $result = db_query($link,
1841                                 "INSERT INTO ttrss_feeds
1842                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
1843                                 VALUES ('".$_SESSION["uid"]."', '$url',
1844                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
1845
1846                         $result = db_query($link,
1847                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1848                                         AND owner_uid = " . $_SESSION["uid"]);
1849
1850                         $feed_id = db_fetch_result($result, 0, "id");
1851
1852                         if ($feed_id) {
1853                                 update_rss_feed($link, $feed_id, true);
1854                         }
1855
1856                         return array("code" => 1);
1857                 } else {
1858                         return array("code" => 0);
1859                 }
1860         }
1861
1862         function print_feed_select($link, $id, $default_id = "",
1863                 $attributes = "", $include_all_feeds = true,
1864                 $root_id = false, $nest_level = 0) {
1865
1866                 if (!$root_id) {
1867                         print "<select id=\"$id\" name=\"$id\" $attributes>";
1868                         if ($include_all_feeds) {
1869                                 $is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
1870                                 print "<option $is_selected value=\"0\">".__('All feeds')."</option>";
1871                         }
1872                 }
1873
1874                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
1875
1876                         if ($root_id)
1877                                 $parent_qpart = "parent_cat = '$root_id'";
1878                         else
1879                                 $parent_qpart = "parent_cat IS NULL";
1880
1881                         $result = db_query($link, "SELECT id,title,
1882                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1883                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1884                                 FROM ttrss_feed_categories
1885                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1886
1887                         while ($line = db_fetch_assoc($result)) {
1888
1889                                 for ($i = 0; $i < $nest_level; $i++)
1890                                         $line["title"] = " - " . $line["title"];
1891
1892                                 $is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
1893
1894                                 printf("<option $is_selected value='CAT:%d'>%s</option>",
1895                                         $line["id"], htmlspecialchars($line["title"]));
1896
1897                                 if ($line["num_children"] > 0)
1898                                         print_feed_select($link, $id, $default_id, $attributes,
1899                                                 $include_all_feeds, $line["id"], $nest_level+1);
1900
1901                                 $feed_result = db_query($link, "SELECT id,title FROM ttrss_feeds
1902                                         WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1903
1904                                 while ($fline = db_fetch_assoc($feed_result)) {
1905                                         $is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
1906
1907                                         $fline["title"] = " + " . $fline["title"];
1908
1909                                         for ($i = 0; $i < $nest_level; $i++)
1910                                                 $fline["title"] = " - " . $fline["title"];
1911
1912                                         printf("<option $is_selected value='%d'>%s</option>",
1913                                                 $fline["id"], htmlspecialchars($fline["title"]));
1914                                 }
1915                         }
1916
1917                         if (!$root_id) {
1918                                 $is_selected = ($default_id == "CAT:0") ? "selected=\"1\"" : "";
1919
1920                                 printf("<option $is_selected value='CAT:0'>%s</option>",
1921                                         __("Uncategorized"));
1922
1923                                 $feed_result = db_query($link, "SELECT id,title FROM ttrss_feeds
1924                                         WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1925
1926                                 while ($fline = db_fetch_assoc($feed_result)) {
1927                                         $is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
1928
1929                                         $fline["title"] = " + " . $fline["title"];
1930
1931                                         for ($i = 0; $i < $nest_level; $i++)
1932                                                 $fline["title"] = " - " . $fline["title"];
1933
1934                                         printf("<option $is_selected value='%d'>%s</option>",
1935                                                 $fline["id"], htmlspecialchars($fline["title"]));
1936                                 }
1937                         }
1938
1939                 } else {
1940                         $result = db_query($link, "SELECT id,title FROM ttrss_feeds
1941                                 WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1942
1943                         while ($line = db_fetch_assoc($result)) {
1944
1945                                 $is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
1946
1947                                 printf("<option $is_selected value='%d'>%s</option>",
1948                                         $line["id"], htmlspecialchars($line["title"]));
1949                         }
1950                 }
1951
1952                 if (!$root_id) {
1953                         print "</select>";
1954                 }
1955         }
1956
1957         function print_feed_cat_select($link, $id, $default_id,
1958                 $attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
1959
1960                         if (!$root_id) {
1961                                         print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1962                         }
1963
1964                         if ($root_id)
1965                                 $parent_qpart = "parent_cat = '$root_id'";
1966                         else
1967                                 $parent_qpart = "parent_cat IS NULL";
1968
1969                         $result = db_query($link, "SELECT id,title,
1970                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1971                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1972                                 FROM ttrss_feed_categories
1973                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1974
1975                         while ($line = db_fetch_assoc($result)) {
1976                                 if ($line["id"] == $default_id) {
1977                                         $is_selected = "selected=\"1\"";
1978                                 } else {
1979                                         $is_selected = "";
1980                                 }
1981
1982                                 for ($i = 0; $i < $nest_level; $i++)
1983                                         $line["title"] = " - " . $line["title"];
1984
1985                                 if ($line["title"])
1986                                         printf("<option $is_selected value='%d'>%s</option>",
1987                                                 $line["id"], htmlspecialchars($line["title"]));
1988
1989                                 if ($line["num_children"] > 0)
1990                                         print_feed_cat_select($link, $id, $default_id, $attributes,
1991                                                 $include_all_cats, $line["id"], $nest_level+1);
1992                         }
1993
1994                         if (!$root_id) {
1995                                 if ($include_all_cats) {
1996                                         if (db_num_rows($result) > 0) {
1997                                                 print "<option disabled=\"1\">--------</option>";
1998                                         }
1999
2000                                         if ($default_id == 0) {
2001                                                 $is_selected = "selected=\"1\"";
2002                                         } else {
2003                                                 $is_selected = "";
2004                                         }
2005
2006                                         print "<option $is_selected value=\"0\">".__('Uncategorized')."</option>";
2007                                 }
2008                                 print "</select>";
2009                         }
2010                 }
2011
2012         function checkbox_to_sql_bool($val) {
2013                 return ($val == "on") ? "true" : "false";
2014         }
2015
2016         function getFeedCatTitle($link, $id) {
2017                 if ($id == -1) {
2018                         return __("Special");
2019                 } else if ($id < -10) {
2020                         return __("Labels");
2021                 } else if ($id > 0) {
2022                         $result = db_query($link, "SELECT ttrss_feed_categories.title
2023                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
2024                                         cat_id = ttrss_feed_categories.id");
2025                         if (db_num_rows($result) == 1) {
2026                                 return db_fetch_result($result, 0, "title");
2027                         } else {
2028                                 return __("Uncategorized");
2029                         }
2030                 } else {
2031                         return "getFeedCatTitle($id) failed";
2032                 }
2033
2034         }
2035
2036         function getFeedIcon($id) {
2037                 switch ($id) {
2038                 case 0:
2039                         return "images/archive.png";
2040                         break;
2041                 case -1:
2042                         return "images/mark_set.png";
2043                         break;
2044                 case -2:
2045                         return "images/pub_set.png";
2046                         break;
2047                 case -3:
2048                         return "images/fresh.png";
2049                         break;
2050                 case -4:
2051                         return "images/tag.png";
2052                         break;
2053                 case -6:
2054                         return "images/recently_read.png";
2055                         break;
2056                 default:
2057                         if ($id < -10) {
2058                                 return "images/label.png";
2059                         } else {
2060                                 if (file_exists(ICONS_DIR . "/$id.ico"))
2061                                         return ICONS_URL . "/$id.ico";
2062                         }
2063                         break;
2064                 }
2065         }
2066
2067         function getFeedTitle($link, $id, $cat = false) {
2068                 if ($cat) {
2069                         return getCategoryTitle($link, $id);
2070                 } else if ($id == -1) {
2071                         return __("Starred articles");
2072                 } else if ($id == -2) {
2073                         return __("Published articles");
2074                 } else if ($id == -3) {
2075                         return __("Fresh articles");
2076                 } else if ($id == -4) {
2077                         return __("All articles");
2078                 } else if ($id === 0 || $id === "0") {
2079                         return __("Archived articles");
2080                 } else if ($id == -6) {
2081                         return __("Recently read");
2082                 } else if ($id < -10) {
2083                         $label_id = -$id - 11;
2084                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
2085                         if (db_num_rows($result) == 1) {
2086                                 return db_fetch_result($result, 0, "caption");
2087                         } else {
2088                                 return "Unknown label ($label_id)";
2089                         }
2090
2091                 } else if (is_numeric($id) && $id > 0) {
2092                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
2093                         if (db_num_rows($result) == 1) {
2094                                 return db_fetch_result($result, 0, "title");
2095                         } else {
2096                                 return "Unknown feed ($id)";
2097                         }
2098                 } else {
2099                         return $id;
2100                 }
2101         }
2102
2103         function make_init_params($link) {
2104                 $params = array();
2105
2106                 $params["theme"] = get_user_theme($link);
2107                 $params["theme_options"] = get_user_theme_options($link);
2108
2109                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
2110                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
2111                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
2112                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
2113
2114                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
2115                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
2116                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
2117                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
2118
2119                                  $params[strtolower($param)] = (int) get_pref($link, $param);
2120                  }
2121
2122                 $params["icons_url"] = ICONS_URL;
2123                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
2124                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
2125                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
2126                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
2127                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
2128
2129                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
2130                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2131
2132                 $max_feed_id = db_fetch_result($result, 0, "mid");
2133                 $num_feeds = db_fetch_result($result, 0, "nf");
2134
2135                 $params["max_feed_id"] = (int) $max_feed_id;
2136                 $params["num_feeds"] = (int) $num_feeds;
2137
2138                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
2139
2140                 $params["csrf_token"] = $_SESSION["csrf_token"];
2141
2142                 return $params;
2143         }
2144
2145         function make_runtime_info($link) {
2146                 $data = array();
2147
2148                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
2149                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2150
2151                 $max_feed_id = db_fetch_result($result, 0, "mid");
2152                 $num_feeds = db_fetch_result($result, 0, "nf");
2153
2154                 $data["max_feed_id"] = (int) $max_feed_id;
2155                 $data["num_feeds"] = (int) $num_feeds;
2156
2157                 $data['last_article_id'] = getLastArticleId($link);
2158                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
2159
2160                 if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
2161
2162                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
2163
2164                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
2165
2166                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
2167
2168                                 if ($stamp) {
2169                                         $stamp_delta = time() - $stamp;
2170
2171                                         if ($stamp_delta > 1800) {
2172                                                 $stamp_check = 0;
2173                                         } else {
2174                                                 $stamp_check = 1;
2175                                                 $_SESSION["daemon_stamp_check"] = time();
2176                                         }
2177
2178                                         $data['daemon_stamp_ok'] = $stamp_check;
2179
2180                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
2181
2182                                         $data['daemon_stamp'] = $stamp_fmt;
2183                                 }
2184                         }
2185                 }
2186
2187                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
2188                                 $new_version_details = @check_for_update($link);
2189
2190                                 $data['new_version_available'] = (int) ($new_version_details != false);
2191
2192                                 $_SESSION["last_version_check"] = time();
2193                                 $_SESSION["version_data"] = $new_version_details;
2194                 }
2195
2196                 return $data;
2197         }
2198
2199         function search_to_sql($link, $search, $match_on) {
2200
2201                 $search_query_part = "";
2202
2203                 $keywords = explode(" ", $search);
2204                 $query_keywords = array();
2205
2206                 foreach ($keywords as $k) {
2207                         if (strpos($k, "-") === 0) {
2208                                 $k = substr($k, 1);
2209                                 $not = "NOT";
2210                         } else {
2211                                 $not = "";
2212                         }
2213
2214                         $commandpair = explode(":", mb_strtolower($k), 2);
2215
2216                         if ($commandpair[0] == "note" && $commandpair[1]) {
2217
2218                                 if ($commandpair[1] == "true")
2219                                         array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
2220                                 else
2221                                         array_push($query_keywords, "($not (note IS NULL OR note = ''))");
2222
2223                         } else if ($commandpair[0] == "star" && $commandpair[1]) {
2224
2225                                 if ($commandpair[1] == "true")
2226                                         array_push($query_keywords, "($not (marked = true))");
2227                                 else
2228                                         array_push($query_keywords, "($not (marked = false))");
2229
2230                         } else if ($commandpair[0] == "pub" && $commandpair[1]) {
2231
2232                                 if ($commandpair[1] == "true")
2233                                         array_push($query_keywords, "($not (published = true))");
2234                                 else
2235                                         array_push($query_keywords, "($not (published = false))");
2236
2237                         } else if (strpos($k, "@") === 0) {
2238
2239                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
2240                                 $orig_ts = strtotime(substr($k, 1));
2241                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
2242
2243                                 //$k = date("Y-m-d", strtotime(substr($k, 1)));
2244
2245                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
2246                         } else if ($match_on == "both") {
2247                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
2248                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
2249                         } else if ($match_on == "title") {
2250                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
2251                         } else if ($match_on == "content") {
2252                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
2253                         }
2254                 }
2255
2256                 $search_query_part = implode("AND", $query_keywords);
2257
2258                 return $search_query_part;
2259         }
2260
2261         function getParentCategories($link, $cat, $owner_uid) {
2262                 $rv = array();
2263
2264                 $result = db_query($link, "SELECT parent_cat FROM ttrss_feed_categories
2265                         WHERE id = '$cat' AND parent_cat IS NOT NULL AND owner_uid = $owner_uid");
2266
2267                 while ($line = db_fetch_assoc($result)) {
2268                         array_push($rv, $line["parent_cat"]);
2269                         $rv = array_merge($rv, getParentCategories($link, $line["parent_cat"], $owner_uid));
2270                 }
2271
2272                 return $rv;
2273         }
2274
2275         function getChildCategories($link, $cat, $owner_uid) {
2276                 $rv = array();
2277
2278                 $result = db_query($link, "SELECT id FROM ttrss_feed_categories
2279                         WHERE parent_cat = '$cat' AND owner_uid = $owner_uid");
2280
2281                 while ($line = db_fetch_assoc($result)) {
2282                         array_push($rv, $line["id"]);
2283                         $rv = array_merge($rv, getChildCategories($link, $line["id"], $owner_uid));
2284                 }
2285
2286                 return $rv;
2287         }
2288
2289         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0, $include_children = false) {
2290
2291                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2292
2293                 $ext_tables_part = "";
2294
2295                         if ($search) {
2296
2297                                 if (SPHINX_ENABLED) {
2298                                         $ids = join(",", @sphinx_search($search, 0, 500));
2299
2300                                         if ($ids)
2301                                                 $search_query_part = "ref_id IN ($ids) AND ";
2302                                         else
2303                                                 $search_query_part = "ref_id = -1 AND ";
2304
2305                                 } else {
2306                                         $search_query_part = search_to_sql($link, $search, $match_on);
2307                                         $search_query_part .= " AND ";
2308                                 }
2309
2310                         } else {
2311                                 $search_query_part = "";
2312                         }
2313
2314                         if ($filter) {
2315
2316                                 if (DB_TYPE == "pgsql") {
2317                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '14 days' ";
2318                                 } else {
2319                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL 14 DAY) ";
2320                                 }
2321
2322                                 $override_order = "updated DESC";
2323
2324                                 $filter_query_part = filter_to_sql($filter);
2325
2326                                 // Try to check if SQL regexp implementation chokes on a valid regexp
2327                                 $result = db_query($link, "SELECT true FROM ttrss_entries
2328                                         WHERE $filter_query_part LIMIT 1", false);
2329
2330                                 $test = db_fetch_result($result, 0, "true");
2331
2332                                 if (!$test) {
2333                                         $filter_query_part = "false AND";
2334                                 } else {
2335                                         $filter_query_part .= " AND";
2336                                 }
2337
2338                         } else {
2339                                 $filter_query_part = "";
2340                         }
2341
2342                         if ($since_id) {
2343                                 $since_id_part = "ttrss_entries.id > $since_id AND ";
2344                         } else {
2345                                 $since_id_part = "";
2346                         }
2347
2348                         $view_query_part = "";
2349
2350                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
2351                                 if ($search) {
2352                                         $view_query_part = " ";
2353                                 } else if ($feed != -1) {
2354                                         $unread = getFeedUnread($link, $feed, $cat_view);
2355
2356                                         if ($cat_view && $feed > 0 && $include_children)
2357                                                 $unread += getCategoryChildrenUnread($link, $feed);
2358
2359                                         if ($unread > 0) {
2360                                                 $view_query_part = " unread = true AND ";
2361                                         }
2362                                 }
2363                         }
2364
2365                         if ($view_mode == "marked") {
2366                                 $view_query_part = " marked = true AND ";
2367                         }
2368
2369                         if ($view_mode == "published") {
2370                                 $view_query_part = " published = true AND ";
2371                         }
2372
2373                         if ($view_mode == "unread") {
2374                                 $view_query_part = " unread = true AND ";
2375                         }
2376
2377                         if ($view_mode == "updated") {
2378                                 $view_query_part = " (last_read is null and unread = false) AND ";
2379                         }
2380
2381                         if ($limit > 0) {
2382                                 $limit_query_part = "LIMIT " . $limit;
2383                         }
2384
2385                         $allow_archived = false;
2386
2387                         $vfeed_query_part = "";
2388
2389                         // override query strategy and enable feed display when searching globally
2390                         if ($search && $search_mode == "all_feeds") {
2391                                 $query_strategy_part = "true";
2392                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2393                         /* tags */
2394                         } else if (!is_numeric($feed)) {
2395                                 $query_strategy_part = "true";
2396                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
2397                                         id = feed_id) as feed_title,";
2398                         } else if ($search && $search_mode == "this_cat") {
2399                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2400
2401                                 if ($feed > 0) {
2402                                         if ($include_children) {
2403                                                 $subcats = getChildCategories($link, $feed, $owner_uid);
2404                                                 array_push($subcats, $feed);
2405                                                 $cats_qpart = join(",", $subcats);
2406                                         } else {
2407                                                 $cats_qpart = $feed;
2408                                         }
2409
2410                                         $query_strategy_part = "ttrss_feeds.cat_id IN ($cats_qpart)";
2411
2412                                 } else {
2413                                         $query_strategy_part = "ttrss_feeds.cat_id IS NULL";
2414                                 }
2415
2416                         } else if ($feed > 0) {
2417
2418                                 if ($cat_view) {
2419
2420                                         if ($feed > 0) {
2421                                                 if ($include_children) {
2422                                                         # sub-cats
2423                                                         $subcats = getChildCategories($link, $feed, $owner_uid);
2424
2425                                                         array_push($subcats, $feed);
2426                                                         $query_strategy_part = "cat_id IN (".
2427                                                                         implode(",", $subcats).")";
2428
2429                                                 } else {
2430                                                         $query_strategy_part = "cat_id = '$feed'";
2431                                                 }
2432
2433                                         } else {
2434                                                 $query_strategy_part = "cat_id IS NULL";
2435                                         }
2436
2437                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2438
2439                                 } else {
2440                                         $query_strategy_part = "feed_id = '$feed'";
2441                                 }
2442                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
2443                                 $query_strategy_part = "feed_id IS NULL";
2444                                 $allow_archived = true;
2445                         } else if ($feed == 0 && $cat_view) { // uncategorized
2446                                 $query_strategy_part = "cat_id IS NULL AND feed_id IS NOT NULL";
2447                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2448                         } else if ($feed == -1) { // starred virtual feed
2449                                 $query_strategy_part = "marked = true";
2450                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2451                                 $allow_archived = true;
2452
2453                         } else if ($feed == -2) { // published virtual feed OR labels category
2454
2455                                 if (!$cat_view) {
2456                                         $query_strategy_part = "published = true";
2457                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2458                                         $allow_archived = true;
2459
2460                                         if (!$override_order) $override_order = "last_read DESC, updated DESC";
2461                                 } else {
2462                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2463
2464                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2465
2466                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
2467                                                 ttrss_user_labels2.article_id = ref_id";
2468
2469                                 }
2470                         } else if ($feed == -6) { // recently read
2471                                 $query_strategy_part = "unread = false AND last_read IS NOT NULL";
2472                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2473                                 $allow_archived = true;
2474
2475                                 if (!$override_order) $override_order = "last_read DESC";
2476                         } else if ($feed == -3) { // fresh virtual feed
2477                                 $query_strategy_part = "unread = true AND score >= 0";
2478
2479                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2480
2481                                 if (DB_TYPE == "pgsql") {
2482                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2483                                 } else {
2484                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2485                                 }
2486
2487                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2488                         } else if ($feed == -4) { // all articles virtual feed
2489                                 $query_strategy_part = "true";
2490                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2491                         } else if ($feed <= -10) { // labels
2492                                 $label_id = -$feed - 11;
2493
2494                                 $query_strategy_part = "label_id = '$label_id' AND
2495                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
2496                                         ttrss_user_labels2.article_id = ref_id";
2497
2498                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2499                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2500                                 $allow_archived = true;
2501
2502                         } else {
2503                                 $query_strategy_part = "true";
2504                         }
2505
2506                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
2507                                 $date_sort_field = "updated";
2508                         } else {
2509                                 $date_sort_field = "date_entered";
2510                         }
2511
2512                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
2513                                 $order_by = "$date_sort_field";
2514                         } else {
2515                                 $order_by = "$date_sort_field DESC";
2516                         }
2517
2518                         if ($view_mode != "noscores") {
2519                                 $order_by = "score DESC, $order_by";
2520                         }
2521
2522                         if ($override_order) {
2523                                 $order_by = $override_order;
2524                         }
2525
2526                         $feed_title = "";
2527
2528                         if ($search) {
2529                                 $feed_title = T_sprintf("Search results: %s", $search);
2530                         } else {
2531                                 if ($cat_view) {
2532                                         $feed_title = getCategoryTitle($link, $feed);
2533                                 } else {
2534                                         if (is_numeric($feed) && $feed > 0) {
2535                                                 $result = db_query($link, "SELECT title,site_url,last_error
2536                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
2537
2538                                                 $feed_title = db_fetch_result($result, 0, "title");
2539                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
2540                                                 $last_error = db_fetch_result($result, 0, "last_error");
2541                                         } else {
2542                                                 $feed_title = getFeedTitle($link, $feed);
2543                                         }
2544                                 }
2545                         }
2546
2547                         $content_query_part = "content as content_preview,";
2548
2549                         if (is_numeric($feed)) {
2550
2551                                 if ($feed >= 0) {
2552                                         $feed_kind = "Feeds";
2553                                 } else {
2554                                         $feed_kind = "Labels";
2555                                 }
2556
2557                                 if ($limit_query_part) {
2558                                         $offset_query_part = "OFFSET $offset";
2559                                 }
2560
2561                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
2562                                         if (!$override_order) {
2563                                                 $order_by = "ttrss_feeds.title, $order_by";
2564                                         }
2565                                 }
2566
2567                                 if (!$allow_archived) {
2568                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
2569                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2570
2571                                 } else {
2572                                         $from_qpart = "ttrss_entries$ext_tables_part,ttrss_user_entries
2573                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
2574                                 }
2575
2576                                 $query = "SELECT DISTINCT
2577                                                 date_entered,
2578                                                 guid,
2579                                                 ttrss_entries.id,ttrss_entries.title,
2580                                                 updated,
2581                                                 label_cache,
2582                                                 tag_cache,
2583                                                 always_display_enclosures,
2584                                                 site_url,
2585                                                 note,
2586                                                 num_comments,
2587                                                 comments,
2588                                                 int_id,
2589                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
2590                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
2591                                                 $vfeed_query_part
2592                                                 $content_query_part
2593                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
2594                                                 author,score
2595                                         FROM
2596                                                 $from_qpart
2597                                         WHERE
2598                                         $feed_check_qpart
2599                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2600                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
2601                                         $search_query_part
2602                                         $filter_query_part
2603                                         $view_query_part
2604                                         $since_id_part
2605                                         $query_strategy_part ORDER BY $order_by
2606                                         $limit_query_part $offset_query_part";
2607
2608                                 if ($_REQUEST["debug"]) print $query;
2609
2610                                 $result = db_query($link, $query);
2611
2612                         } else {
2613                                 // browsing by tag
2614
2615                                 $select_qpart = "SELECT DISTINCT " .
2616                                                                 "date_entered," .
2617                                                                 "guid," .
2618                                                                 "note," .
2619                                                                 "ttrss_entries.id as id," .
2620                                                                 "title," .
2621                                                                 "updated," .
2622                                                                 "unread," .
2623                                                                 "feed_id," .
2624                                                                 "orig_feed_id," .
2625                                                                 "marked," .
2626                                                                 "num_comments, " .
2627                                                                 "comments, " .
2628                                                                 "tag_cache," .
2629                                                                 "label_cache," .
2630                                                                 "link," .
2631                                                                 "last_read," .
2632                                                                 SUBSTRING_FOR_DATE . "(last_read,1,19) as last_read_noms," .
2633                                                                 $since_id_part .
2634                                                                 $vfeed_query_part .
2635                                                                 $content_query_part .
2636                                                                 SUBSTRING_FOR_DATE . "(updated,1,19) as updated_noms," .
2637                                                                 "score ";
2638
2639                                 $feed_kind = "Tags";
2640                                 $all_tags = explode(",", $feed);
2641                                 if ($search_mode == 'any') {
2642                                         $tag_sql = "tag_name in (" . implode(", ", array_map("db_quote", $all_tags)) . ")";
2643                                         $from_qpart = " FROM ttrss_entries,ttrss_user_entries,ttrss_tags ";
2644                                         $where_qpart = " WHERE " .
2645                                                                    "ref_id = ttrss_entries.id AND " .
2646                                                                    "ttrss_user_entries.owner_uid = $owner_uid AND " .
2647                                                                    "post_int_id = int_id AND $tag_sql AND " .
2648                                                                    $view_query_part .
2649                                                                    $search_query_part .
2650                                                                    $query_strategy_part . " ORDER BY $order_by " .
2651                                                                    $limit_query_part;
2652
2653                                 } else {
2654                                         $i = 1;
2655                                         $sub_selects = array();
2656                                         $sub_ands = array();
2657                                         foreach ($all_tags as $term) {
2658                                                 array_push($sub_selects, "(SELECT post_int_id from ttrss_tags WHERE tag_name = " . db_quote($term) . " AND owner_uid = $owner_uid) as A$i");
2659                                                 $i++;
2660                                         }
2661                                         if ($i > 2) {
2662                                                 $x = 1;
2663                                                 $y = 2;
2664                                                 do {
2665                                                         array_push($sub_ands, "A$x.post_int_id = A$y.post_int_id");
2666                                                         $x++;
2667                                                         $y++;
2668                                                 } while ($y < $i);
2669                                         }
2670                                         array_push($sub_ands, "A1.post_int_id = ttrss_user_entries.int_id and ttrss_user_entries.owner_uid = $owner_uid");
2671                                         array_push($sub_ands, "ttrss_user_entries.ref_id = ttrss_entries.id");
2672                                         $from_qpart = " FROM " . implode(", ", $sub_selects) . ", ttrss_user_entries, ttrss_entries";
2673                                         $where_qpart = " WHERE " . implode(" AND ", $sub_ands);
2674                                 }
2675                                 //                              error_log("TAG SQL: " . $tag_sql);
2676                                 // $tag_sql = "tag_name = '$feed'";   DEFAULT way
2677
2678                                 //                              error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
2679                                 $result = db_query($link, $select_qpart . $from_qpart . $where_qpart);
2680                         }
2681
2682                         return array($result, $feed_title, $feed_site_url, $last_error);
2683
2684         }
2685
2686         function sanitize($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
2687                 global $purifier;
2688
2689                 if (!$owner) $owner = $_SESSION["uid"];
2690
2691                 $res = trim($str); if (!$res) return '';
2692
2693                 // create global Purifier object if needed
2694                 if (!$purifier) {
2695                         require_once 'lib/htmlpurifier/library/HTMLPurifier.auto.php';
2696
2697                         $config = HTMLPurifier_Config::createDefault();
2698
2699                         $allowed = "p,a[href],i,em,b,strong,code,pre,blockquote,br,img[src|alt|title|align|hspace],ul,ol,li,h1,h2,h3,h4,s,object[classid|type|id|name|width|height|codebase],param[name|value],table,tr,td,span[class]";
2700
2701                         $config->set('HTML.SafeObject', true);
2702                         @$config->set('HTML', 'Allowed', $allowed);
2703                         $config->set('Output.FlashCompat', true);
2704                         $config->set('Attr.EnableID', true);
2705                         if (!defined('MOBILE_VERSION')) {
2706                                 @$config->set('Cache', 'SerializerPath', CACHE_DIR . "/htmlpurifier");
2707                         } else {
2708                                 @$config->set('Cache', 'SerializerPath', "../" . CACHE_DIR . "/htmlpurifier");
2709                         }
2710
2711                         $config->set('Filter.YouTube', true);
2712
2713                         $purifier = new HTMLPurifier($config);
2714                 }
2715
2716                 $res = $purifier->purify($res);
2717
2718                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
2719                         $res = preg_replace('/<img[^>]+>/is', '', $res);
2720                 }
2721
2722                 if (strpos($res, "href=") === false)
2723                         $res = rewrite_urls($res);
2724
2725                 $charset_hack = '<head>
2726                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
2727                 </head>';
2728
2729                 $res = trim($res); if (!$res) return '';
2730
2731                 libxml_use_internal_errors(true);
2732
2733                 $doc = new DOMDocument();
2734                 $doc->loadHTML($charset_hack . $res);
2735                 $xpath = new DOMXPath($doc);
2736
2737                 $entries = $xpath->query('(//a[@href]|//img[@src])');
2738                 $br_inserted = 0;
2739
2740                 foreach ($entries as $entry) {
2741
2742                         if ($site_url) {
2743
2744                                 if ($entry->hasAttribute('href'))
2745                                         $entry->setAttribute('href',
2746                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
2747
2748                                 if ($entry->hasAttribute('src'))
2749                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
2750                                                 $entry->setAttribute('src',
2751                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
2752                         }
2753
2754                         if (strtolower($entry->nodeName) == "a") {
2755                                 $entry->setAttribute("target", "_blank");
2756                         }
2757
2758                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
2759                                 $br = $doc->createElement("br");
2760
2761                                 if ($entry->parentNode->nextSibling) {
2762                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
2763                                         $br_inserted = 1;
2764                                 }
2765
2766                         }
2767                 }
2768
2769                 $node = $doc->getElementsByTagName('body')->item(0);
2770
2771                 return $doc->saveXML($node, LIBXML_NOEMPTYTAG);
2772         }
2773
2774         /**
2775          * Send by mail a digest of last articles.
2776          *
2777          * @param mixed $link The database connection.
2778          * @param integer $limit The maximum number of articles by digest.
2779          * @return boolean Return false if digests are not enabled.
2780          */
2781         function send_headlines_digests($link, $debug = false) {
2782
2783                 require_once 'lib/phpmailer/class.phpmailer.php';
2784
2785                 $user_limit = 15; // amount of users to process (e.g. emails to send out)
2786                 $limit = 1000; // maximum amount of headlines to include
2787
2788                 if ($debug) _debug("Sending digests, batch of max $user_limit users, headline limit = $limit");
2789
2790                 if (DB_TYPE == "pgsql") {
2791                         $interval_query = "last_digest_sent < NOW() - INTERVAL '1 days'";
2792                 } else if (DB_TYPE == "mysql") {
2793                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL 1 DAY)";
2794                 }
2795
2796                 $result = db_query($link, "SELECT id,email FROM ttrss_users
2797                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
2798
2799                 while ($line = db_fetch_assoc($result)) {
2800
2801                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
2802                                 $preferred_ts = strtotime(get_pref($link, 'DIGEST_PREFERRED_TIME', $line['id'], '00:00'));
2803
2804                                 // try to send digests within 2 hours of preferred time
2805                                 if ($preferred_ts && time() >= $preferred_ts &&
2806                                                 time() - $preferred_ts <= 7200) {
2807
2808                                         if ($debug) print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
2809
2810                                         $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
2811
2812                                         global $tz_offset;
2813
2814                                         // reset tz_offset global to prevent tz cache clash between users
2815                                         $tz_offset = -1;
2816
2817                                         $tuple = prepare_headlines_digest($link, $line["id"], 1, $limit);
2818                                         $digest = $tuple[0];
2819                                         $headlines_count = $tuple[1];
2820                                         $affected_ids = $tuple[2];
2821                                         $digest_text = $tuple[3];
2822
2823                                         if ($headlines_count > 0) {
2824
2825                                                 $mail = new PHPMailer();
2826
2827                                                 $mail->PluginDir = "lib/phpmailer/";
2828                                                 $mail->SetLanguage("en", "lib/phpmailer/language/");
2829
2830                                                 $mail->CharSet = "UTF-8";
2831
2832                                                 $mail->From = SMTP_FROM_ADDRESS;
2833                                                 $mail->FromName = SMTP_FROM_NAME;
2834                                                 $mail->AddAddress($line["email"], $line["login"]);
2835
2836                                                 if (SMTP_HOST) {
2837                                                         $mail->Host = SMTP_HOST;
2838                                                         $mail->Mailer = "smtp";
2839                                                         $mail->SMTPAuth = SMTP_LOGIN != '';
2840                                                         $mail->Username = SMTP_LOGIN;
2841                                                         $mail->Password = SMTP_PASSWORD;
2842                                                 }
2843
2844                                                 $mail->IsHTML(true);
2845                                                 $mail->Subject = DIGEST_SUBJECT;
2846                                                 $mail->Body = $digest;
2847                                                 $mail->AltBody = $digest_text;
2848
2849                                                 $rc = $mail->Send();
2850
2851                                                 if (!$rc && $debug) print "ERROR: " . $mail->ErrorInfo;
2852
2853                                                 if ($debug) print "RC=$rc\n";
2854
2855                                                 if ($rc && $do_catchup) {
2856                                                         if ($debug) print "Marking affected articles as read...\n";
2857                                                         catchupArticlesById($link, $affected_ids, 0, $line["id"]);
2858                                                 }
2859                                         } else {
2860                                                 if ($debug) print "No headlines\n";
2861                                         }
2862
2863                                         db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
2864                                                 WHERE id = " . $line["id"]);
2865
2866                                 }
2867                         }
2868                 }
2869
2870                 if ($debug) _debug("All done.");
2871
2872         }
2873
2874         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 1000) {
2875
2876                 require_once "lib/MiniTemplator.class.php";
2877
2878                 $tpl = new MiniTemplator;
2879                 $tpl_t = new MiniTemplator;
2880
2881                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
2882                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
2883
2884                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $user_id);
2885                 $local_ts = convert_timestamp(time(), 'UTC', $user_tz_string);
2886
2887                 $tpl->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
2888                 $tpl->setVariable('CUR_TIME', date('G:i', $local_ts));
2889
2890                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
2891                 $tpl_t->setVariable('CUR_TIME', date('G:i', $local_ts));
2892
2893                 $affected_ids = array();
2894
2895                 if (DB_TYPE == "pgsql") {
2896                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
2897                 } else if (DB_TYPE == "mysql") {
2898                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
2899                 }
2900
2901                 $result = db_query($link, "SELECT ttrss_entries.title,
2902                                 ttrss_feeds.title AS feed_title,
2903                                 COALESCE(ttrss_feed_categories.title, '".__('Uncategorized')."') AS cat_title,
2904                                 date_updated,
2905                                 ttrss_user_entries.ref_id,
2906                                 link,
2907                                 score,
2908                                 content,
2909                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
2910                         FROM
2911                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
2912                         LEFT JOIN
2913                                 ttrss_feed_categories ON (cat_id = ttrss_feed_categories.id)
2914                         WHERE
2915                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
2916                                 AND include_in_digest = true
2917                                 AND $interval_query
2918                                 AND ttrss_user_entries.owner_uid = $user_id
2919                                 AND unread = true
2920                                 AND score >= 0
2921                         ORDER BY ttrss_feed_categories.title, ttrss_feeds.title, score DESC, date_updated DESC
2922                         LIMIT $limit");
2923
2924                 $cur_feed_title = "";
2925
2926                 $headlines_count = db_num_rows($result);
2927
2928                 $headlines = array();
2929
2930                 while ($line = db_fetch_assoc($result)) {
2931                         array_push($headlines, $line);
2932                 }
2933
2934                 for ($i = 0; $i < sizeof($headlines); $i++) {
2935
2936                         $line = $headlines[$i];
2937
2938                         array_push($affected_ids, $line["ref_id"]);
2939
2940                         $updated = make_local_datetime($link, $line['last_updated'], false,
2941                                 $user_id);
2942
2943 /*                      if ($line["score"] != 0) {
2944                                 if ($line["score"] > 0) $line["score"] = '+' . $line["score"];
2945
2946                                 $line["title"] .= " (".$line['score'].")";
2947                         } */
2948
2949                         if (get_pref($link, 'ENABLE_FEED_CATS', $user_id)) {
2950                                 $line['feed_title'] = $line['cat_title'] . " / " . $line['feed_title'];
2951                         }
2952
2953                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
2954                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
2955                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
2956                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
2957                         $tpl->setVariable('ARTICLE_EXCERPT',
2958                                 truncate_string(strip_tags($line["content"]), 300));
2959 //                      $tpl->setVariable('ARTICLE_CONTENT',
2960 //                              strip_tags($article_content));
2961
2962                         $tpl->addBlock('article');
2963
2964                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
2965                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
2966                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
2967                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
2968 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
2969 //                              truncate_string(strip_tags($line["excerpt"]), 100));
2970
2971                         $tpl_t->addBlock('article');
2972
2973                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
2974                                 $tpl->addBlock('feed');
2975                                 $tpl_t->addBlock('feed');
2976                         }
2977
2978                 }
2979
2980                 $tpl->addBlock('digest');
2981                 $tpl->generateOutputToString($tmp);
2982
2983                 $tpl_t->addBlock('digest');
2984                 $tpl_t->generateOutputToString($tmp_t);
2985
2986                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
2987         }
2988
2989         function check_for_update($link) {
2990                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
2991                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
2992
2993                         $version_data = @fetch_file_contents($version_url);
2994
2995                         if ($version_data) {
2996                                 $version_data = json_decode($version_data, true);
2997                                 if ($version_data && $version_data['version']) {
2998
2999                                         if (version_compare(VERSION, $version_data['version']) == -1) {
3000                                                 return $version_data;
3001                                         }
3002                                 }
3003                         }
3004                 }
3005                 return false;
3006         }
3007
3008         function markArticlesById($link, $ids, $cmode) {
3009
3010                 $tmp_ids = array();
3011
3012                 foreach ($ids as $id) {
3013                         array_push($tmp_ids, "ref_id = '$id'");
3014                 }
3015
3016                 $ids_qpart = join(" OR ", $tmp_ids);
3017
3018                 if ($cmode == 0) {
3019                         db_query($link, "UPDATE ttrss_user_entries SET
3020                         marked = false,last_read = NOW()
3021                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3022                 } else if ($cmode == 1) {
3023                         db_query($link, "UPDATE ttrss_user_entries SET
3024                         marked = true
3025                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3026                 } else {
3027                         db_query($link, "UPDATE ttrss_user_entries SET
3028                         marked = NOT marked,last_read = NOW()
3029                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3030                 }
3031         }
3032
3033         function publishArticlesById($link, $ids, $cmode) {
3034
3035                 $tmp_ids = array();
3036
3037                 foreach ($ids as $id) {
3038                         array_push($tmp_ids, "ref_id = '$id'");
3039                 }
3040
3041                 $ids_qpart = join(" OR ", $tmp_ids);
3042
3043                 if ($cmode == 0) {
3044                         db_query($link, "UPDATE ttrss_user_entries SET
3045                         published = false,last_read = NOW()
3046                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3047                 } else if ($cmode == 1) {
3048                         db_query($link, "UPDATE ttrss_user_entries SET
3049                         published = true,last_read = NOW()
3050                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3051                 } else {
3052                         db_query($link, "UPDATE ttrss_user_entries SET
3053                         published = NOT published,last_read = NOW()
3054                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3055                 }
3056
3057                 if (PUBSUBHUBBUB_HUB) {
3058                         $rss_link = get_self_url_prefix() .
3059                                 "/public.php?op=rss&id=-2&key=" .
3060                                 get_feed_access_key($link, -2, false);
3061
3062                         $p = new Publisher(PUBSUBHUBBUB_HUB);
3063
3064                         $pubsub_result = $p->publish_update($rss_link);
3065                 }
3066         }
3067
3068         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
3069
3070                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3071                 if (count($ids) == 0) return;
3072
3073                 $tmp_ids = array();
3074
3075                 foreach ($ids as $id) {
3076                         array_push($tmp_ids, "ref_id = '$id'");
3077                 }
3078
3079                 $ids_qpart = join(" OR ", $tmp_ids);
3080
3081                 if ($cmode == 0) {
3082                         db_query($link, "UPDATE ttrss_user_entries SET
3083                         unread = false,last_read = NOW()
3084                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3085                 } else if ($cmode == 1) {
3086                         db_query($link, "UPDATE ttrss_user_entries SET
3087                         unread = true
3088                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3089                 } else {
3090                         db_query($link, "UPDATE ttrss_user_entries SET
3091                         unread = NOT unread,last_read = NOW()
3092                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3093                 }
3094
3095                 /* update ccache */
3096
3097                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
3098                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3099
3100                 while ($line = db_fetch_assoc($result)) {
3101                         ccache_update($link, $line["feed_id"], $owner_uid);
3102                 }
3103         }
3104
3105         function catchupArticleById($link, $id, $cmode) {
3106
3107                 if ($cmode == 0) {
3108                         db_query($link, "UPDATE ttrss_user_entries SET
3109                         unread = false,last_read = NOW()
3110                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3111                 } else if ($cmode == 1) {
3112                         db_query($link, "UPDATE ttrss_user_entries SET
3113                         unread = true
3114                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3115                 } else {
3116                         db_query($link, "UPDATE ttrss_user_entries SET
3117                         unread = NOT unread,last_read = NOW()
3118                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3119                 }
3120
3121                 $feed_id = getArticleFeed($link, $id);
3122                 ccache_update($link, $feed_id, $_SESSION["uid"]);
3123         }
3124
3125         function make_guid_from_title($title) {
3126                 return preg_replace("/[ \"\',.:;]/", "-",
3127                         mb_strtolower(strip_tags($title), 'utf-8'));
3128         }
3129
3130         function get_article_tags($link, $id, $owner_uid = 0, $tag_cache = false) {
3131
3132                 $a_id = db_escape_string($id);
3133
3134                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3135
3136                 $query = "SELECT DISTINCT tag_name,
3137                         owner_uid as owner FROM
3138                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
3139                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
3140
3141                 $obj_id = md5("TAGS:$owner_uid:$id");
3142                 $tags = array();
3143
3144                 /* check cache first */
3145
3146                 if ($tag_cache === false) {
3147                         $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
3148                                 WHERE ref_id = '$id' AND owner_uid = $owner_uid");
3149
3150                         $tag_cache = db_fetch_result($result, 0, "tag_cache");
3151                 }
3152
3153                 if ($tag_cache) {
3154                         $tags = explode(",", $tag_cache);
3155                 } else {
3156
3157                         /* do it the hard way */
3158
3159                         $tmp_result = db_query($link, $query);
3160
3161                         while ($tmp_line = db_fetch_assoc($tmp_result)) {
3162                                 array_push($tags, $tmp_line["tag_name"]);
3163                         }
3164
3165                         /* update the cache */
3166
3167                         $tags_str = db_escape_string(join(",", $tags));
3168
3169                         db_query($link, "UPDATE ttrss_user_entries
3170                                 SET tag_cache = '$tags_str' WHERE ref_id = '$id'
3171                                 AND owner_uid = $owner_uid");
3172                 }
3173
3174                 return $tags;
3175         }
3176
3177         function trim_array($array) {
3178                 $tmp = $array;
3179                 array_walk($tmp, 'trim');
3180                 return $tmp;
3181         }
3182
3183         function tag_is_valid($tag) {
3184                 if ($tag == '') return false;
3185                 if (preg_match("/^[0-9]*$/", $tag)) return false;
3186                 if (mb_strlen($tag) > 250) return false;
3187
3188                 if (function_exists('iconv')) {
3189                         $tag = iconv("utf-8", "utf-8", $tag);
3190                 }
3191
3192                 if (!$tag) return false;
3193
3194                 return true;
3195         }
3196
3197         function render_login_form($link, $form_id = 0) {
3198                 switch ($form_id) {
3199                 case 0:
3200                         require_once "login_form.php";
3201                         break;
3202                 case 1:
3203                         require_once "mobile/login_form.php";
3204                         break;
3205                 }
3206                 exit;
3207         }
3208
3209         // from http://developer.apple.com/internet/safari/faq.html
3210         function no_cache_incantation() {
3211                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
3212                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
3213                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
3214                 header("Cache-Control: post-check=0, pre-check=0", false);
3215                 header("Pragma: no-cache"); // HTTP/1.0
3216         }
3217
3218         function format_warning($msg, $id = "") {
3219                 global $link;
3220                 return "<div class=\"warning\" id=\"$id\">
3221                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3222         }
3223
3224         function format_notice($msg, $id = "") {
3225                 global $link;
3226                 return "<div class=\"notice\" id=\"$id\">
3227                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
3228         }
3229
3230         function format_error($msg, $id = "") {
3231                 global $link;
3232                 return "<div class=\"error\" id=\"$id\">
3233                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3234         }
3235
3236         function print_notice($msg) {
3237                 return print format_notice($msg);
3238         }
3239
3240         function print_warning($msg) {
3241                 return print format_warning($msg);
3242         }
3243
3244         function print_error($msg) {
3245                 return print format_error($msg);
3246         }
3247
3248
3249         function T_sprintf() {
3250                 $args = func_get_args();
3251                 return vsprintf(__(array_shift($args)), $args);
3252         }
3253
3254         function format_inline_player($link, $url, $ctype) {
3255
3256                 $entry = "";
3257
3258                 if (strpos($ctype, "audio/") === 0) {
3259
3260                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
3261                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
3262                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
3263
3264                                 $id = 'AUDIO-' . uniqid();
3265
3266                                 $entry .= "<audio id=\"$id\"\">
3267                                         <source src=\"$url\"></source>
3268                                         </audio>";
3269
3270                                 $entry .= "<span onclick=\"player(this)\"
3271                                         title=\"".__("Click to play")."\" status=\"0\"
3272                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
3273
3274                         } else {
3275
3276                                 $entry .= "<object type=\"application/x-shockwave-flash\"
3277                                         data=\"lib/button/musicplayer.swf?song_url=$url\"
3278                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
3279                                         <param name=\"movie\"
3280                                                 value=\"lib/button/musicplayer.swf?song_url=$url\" />
3281                                         </object>";
3282                         }
3283                 }
3284
3285                 $filename = substr($url, strrpos($url, "/")+1);
3286
3287                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
3288                         $filename . " (" . $ctype . ")" . "</a>";
3289
3290                 return $entry;
3291         }
3292
3293         function format_article($link, $id, $mark_as_read = true, $zoom_mode = false, $owner_uid = false) {
3294                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3295
3296                 $rv = array();
3297
3298                 $rv['id'] = $id;
3299
3300                 /* we can figure out feed_id from article id anyway, why do we
3301                  * pass feed_id here? let's ignore the argument :( */
3302
3303                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
3304                         WHERE ref_id = '$id'");
3305
3306                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
3307
3308                 $rv['feed_id'] = $feed_id;
3309
3310                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
3311
3312                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
3313                         WHERE id = '$feed_id' AND owner_uid = $owner_uid");
3314
3315                 if (db_num_rows($result) == 1) {
3316                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
3317                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
3318                 } else {
3319                         $rtl_content = false;
3320                         $always_display_enclosures = false;
3321                 }
3322
3323                 if ($rtl_content) {
3324                         $rtl_tag = "dir=\"RTL\"";
3325                         $rtl_class = "RTL";
3326                 } else {
3327                         $rtl_tag = "";
3328                         $rtl_class = "";
3329                 }
3330
3331                 if ($mark_as_read) {
3332                         $result = db_query($link, "UPDATE ttrss_user_entries
3333                                 SET unread = false,last_read = NOW()
3334                                 WHERE ref_id = '$id' AND owner_uid = $owner_uid");
3335
3336                         ccache_update($link, $feed_id, $owner_uid);
3337                 }
3338
3339                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
3340                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
3341                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
3342                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
3343                         num_comments,
3344                         tag_cache,
3345                         author,
3346                         orig_feed_id,
3347                         note
3348                         FROM ttrss_entries,ttrss_user_entries
3349                         WHERE   id = '$id' AND ref_id = id AND owner_uid = $owner_uid");
3350
3351                 if ($result) {
3352
3353                         $line = db_fetch_assoc($result);
3354
3355                         if ($line["icon_url"]) {
3356                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
3357                         } else {
3358                                 $feed_icon = "&nbsp;";
3359                         }
3360
3361                         $feed_site_url = $line['site_url'];
3362
3363                         $num_comments = $line["num_comments"];
3364                         $entry_comments = "";
3365
3366                         if ($num_comments > 0) {
3367                                 if ($line["comments"]) {
3368                                         $comments_url = htmlspecialchars($line["comments"]);
3369                                 } else {
3370                                         $comments_url = htmlspecialchars($line["link"]);
3371                                 }
3372                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
3373                         } else {
3374                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
3375                                         $entry_comments = "<a target='_blank' href=\"".htmlspecialchars($line["comments"])."\">comments</a>";
3376                                 }
3377                         }
3378
3379                         if ($zoom_mode) {
3380                                 header("Content-Type: text/html");
3381                                 $rv['content'] .= "<html><head>
3382                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
3383                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
3384                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
3385                                         </head><body>";
3386                         }
3387
3388                         $title_escaped = htmlspecialchars($line['title']);
3389
3390                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
3391                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
3392
3393                         $rv['content'] .= "<div id=\"PTITLE-FULL-$id\" style=\"display : none\">" .
3394                                 strip_tags($line['title']) . "</div>";
3395
3396                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
3397
3398                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
3399                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
3400
3401                         $entry_author = $line["author"];
3402
3403                         if ($entry_author) {
3404                                 $entry_author = __(" - ") . $entry_author;
3405                         }
3406
3407                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
3408                                 $owner_uid, true);
3409
3410                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
3411
3412                         if ($line["link"]) {
3413                                 $rv['content'] .= "<div class='postTitle'><a target='_blank'
3414                                         title=\"".htmlspecialchars($line['title'])."\"
3415                                         href=\"" .
3416                                         htmlspecialchars($line["link"]) . "\">" .
3417                                         $line["title"] .
3418                                         "<span class='author'>$entry_author</span></a></div>";
3419                         } else {
3420                                 $rv['content'] .= "<div class='postTitle'>" . $line["title"] . "$entry_author</div>";
3421                         }
3422
3423                         $tag_cache = $line["tag_cache"];
3424
3425                         if (!$tag_cache)
3426                                 $tags = get_article_tags($link, $id, $owner_uid);
3427                         else
3428                                 $tags = explode(",", $tag_cache);
3429
3430                         $tags_str = format_tags_string($tags, $id);
3431                         $tags_str_full = join(", ", $tags);
3432
3433                         if (!$tags_str_full) $tags_str_full = __("no tags");
3434
3435                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
3436
3437                         $rv['content'] .= "<div class='postTags' style='float : right'>
3438                                 <img src='".theme_image($link, 'images/tag.png')."'
3439                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
3440
3441                         if (!$zoom_mode) {
3442                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
3443                                         <a title=\"".__('Edit tags for this article')."\"
3444                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
3445
3446                                 $rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
3447                                         id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
3448                                         position=\"below\">$tags_str_full</div>";
3449
3450                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
3451                                                 class='tagsPic' style=\"cursor : pointer\"
3452                                                 onclick=\"postOpenInNewTab(event, $id)\"
3453                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
3454
3455                                 $button_plugins = explode(",", ARTICLE_BUTTON_PLUGINS);
3456
3457                                 foreach ($button_plugins as $p) {
3458                                         $pclass = trim("button_${p}");
3459
3460                                         if (class_exists($pclass)) {
3461                                                 $plugin = new $pclass($link);
3462                                                 $rv['content'] .= $plugin->render($id, $line);
3463                                         }
3464                                 }
3465
3466                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
3467                                                 class='tagsPic' style=\"cursor : pointer\"
3468                                                 onclick=\"closeArticlePanel($id)\"
3469                                                 title='".__('Close article')."'>";
3470
3471                         } else {
3472                                 $tags_str = strip_tags($tags_str);
3473                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
3474                         }
3475                         $rv['content'] .= "</div>";
3476                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
3477
3478                         if ($line["orig_feed_id"]) {
3479
3480                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
3481                                         WHERE id = ".$line["orig_feed_id"]);
3482
3483                                 if (db_num_rows($tmp_result) != 0) {
3484
3485                                         $rv['content'] .= "<div clear='both'>";
3486                                         $rv['content'] .= __("Originally from:");
3487
3488                                         $rv['content'] .= "&nbsp;";
3489
3490                                         $tmp_line = db_fetch_assoc($tmp_result);
3491
3492                                         $rv['content'] .= "<a target='_blank'
3493                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
3494                                                 $tmp_line['title'] . "</a>";
3495
3496                                         $rv['content'] .= "&nbsp;";
3497
3498                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
3499                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.png'></a>";
3500
3501                                         $rv['content'] .= "</div>";
3502                                 }
3503                         }
3504
3505                         $rv['content'] .= "</div>";
3506
3507                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
3508                                 if ($line['note']) {
3509                                         $rv['content'] .= format_article_note($id, $line['note']);
3510                                 }
3511                         $rv['content'] .= "</div>";
3512
3513                         $rv['content'] .= "<div class=\"postIcon\">" .
3514                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
3515                                 href=\"".htmlspecialchars($feed_site_url)."\">".
3516                                 $feed_icon . "</a></div>";
3517
3518                         $rv['content'] .= "<div class=\"postContent\">";
3519
3520                         // N-grams
3521
3522                         if (DB_TYPE == "pgsql" and defined('_NGRAM_TITLE_RELATED_THRESHOLD')) {
3523
3524                                 $ngram_result = db_query($link, "SELECT id,title FROM
3525                                                 ttrss_entries,ttrss_user_entries
3526                                         WHERE ref_id = id AND updated >= NOW() - INTERVAL '7 day'
3527                                                 AND similarity(title, '$title_escaped') >= "._NGRAM_TITLE_RELATED_THRESHOLD."
3528                                                 AND title != '$title_escaped'
3529                                                 AND owner_uid = $owner_uid");
3530
3531                                 if (db_num_rows($ngram_result) > 0) {
3532                                         $rv['content'] .= "<div dojoType=\"dijit.form.DropDownButton\">".
3533                                                 "<span>" . __('Related')."</span>";
3534                                         $rv['content'] .= "<div dojoType=\"dijit.Menu\" style=\"display: none;\">";
3535
3536                                         while ($nline = db_fetch_assoc($ngram_result)) {
3537                                                 $rv['content'] .= "<div onclick=\"hlOpenInNewTab(null,".$nline['id'].")\"
3538                                                         dojoType=\"dijit.MenuItem\">".$nline['title']."</div>";
3539
3540                                         }
3541                                         $rv['content'] .= "</div></div><br/";
3542                                 }
3543                         }
3544
3545                         $article_content = sanitize($link, $line["content"], false, $owner_uid,
3546                                 $feed_site_url);
3547
3548                         $rv['content'] .= $article_content;
3549
3550                         $rv['content'] .= format_article_enclosures($link, $id,
3551                                 $always_display_enclosures, $article_content);
3552
3553                         $rv['content'] .= "</div>";
3554
3555                         $rv['content'] .= "</div>";
3556
3557                 }
3558
3559                 if ($zoom_mode) {
3560                         $rv['content'] .= "
3561                                 <div style=\"text-align : center\">
3562                                 <button onclick=\"return window.close()\">".
3563                                         __("Close this window")."</button></div>";
3564                         $rv['content'] .= "</body></html>";
3565                 }
3566
3567                 return $rv;
3568
3569         }
3570
3571         function print_checkpoint($n, $s) {
3572                 $ts = getmicrotime();
3573                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
3574                 return $ts;
3575         }
3576
3577         function sanitize_tag($tag) {
3578                 $tag = trim($tag);
3579
3580                 $tag = mb_strtolower($tag, 'utf-8');
3581
3582                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
3583
3584 //              $tag = str_replace('"', "", $tag);
3585 //              $tag = str_replace("+", " ", $tag);
3586                 $tag = str_replace("technorati tag: ", "", $tag);
3587
3588                 return $tag;
3589         }
3590
3591         function get_self_url_prefix() {
3592                 return SELF_URL_PATH;
3593         }
3594
3595         function opml_publish_url($link){
3596
3597                 $url_path = get_self_url_prefix();
3598                 $url_path .= "/opml.php?op=publish&key=" .
3599                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
3600
3601                 return $url_path;
3602         }
3603
3604         /**
3605          * Purge a feed contents, marked articles excepted.
3606          *
3607          * @param mixed $link The database connection.
3608          * @param integer $id The id of the feed to purge.
3609          * @return void
3610          */
3611         function clear_feed_articles($link, $id) {
3612
3613                 if ($id != 0) {
3614                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3615                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3616                 } else {
3617                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3618                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3619                 }
3620
3621                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
3622                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
3623
3624                 ccache_update($link, $id, $_SESSION['uid']);
3625         } // function clear_feed_articles
3626
3627         /**
3628          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
3629          *
3630          * @return string The Mozilla Firefox feed adding URL.
3631          */
3632         function add_feed_url() {
3633                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
3634
3635                 $url_path = get_self_url_prefix() .
3636                         "/public.php?op=subscribe&feed_url=%s";
3637                 return $url_path;
3638         } // function add_feed_url
3639
3640         function encrypt_password($pass, $salt = '', $mode2 = false) {
3641                 if ($salt && $mode2) {
3642                         return "MODE2:" . hash('sha256', $salt . $pass);
3643                 } else if ($salt) {
3644                         return "SHA1X:" . sha1("$salt:$pass");
3645                 } else {
3646                         return "SHA1:" . sha1($pass);
3647                 }
3648         } // function encrypt_password
3649
3650         function sanitize_article_content($text) {
3651                 # we don't support CDATA sections in articles, they break our own escaping
3652                 $text = preg_replace("/\[\[CDATA/", "", $text);
3653                 $text = preg_replace("/\]\]\>/", "", $text);
3654                 return $text;
3655         }
3656
3657         function load_filters($link, $feed_id, $owner_uid, $action_id = false) {
3658                 $filters = array();
3659
3660                 $cat_id = (int)getFeedCategory($link, $feed_id);
3661
3662                 $result = db_query($link, "SELECT * FROM ttrss_filters2 WHERE
3663                         owner_uid = $owner_uid AND enabled = true");
3664
3665                 $check_cats = join(",", array_merge(
3666                         getParentCategories($link, $cat_id, $owner_uid),
3667                         array($cat_id)));
3668
3669                 while ($line = db_fetch_assoc($result)) {
3670                         $filter_id = $line["id"];
3671
3672                         $result2 = db_query($link, "SELECT
3673                                 r.reg_exp, r.feed_id, r.cat_id, r.cat_filter, t.name AS type_name
3674                                 FROM ttrss_filters2_rules AS r,
3675                                 ttrss_filter_types AS t
3676                                 WHERE
3677                                         (cat_id IS NULL OR cat_id IN ($check_cats)) AND
3678                                         (feed_id IS NULL OR feed_id = '$feed_id') AND
3679                                         filter_type = t.id AND filter_id = '$filter_id'");
3680
3681                         $rules = array();
3682                         $actions = array();
3683
3684                         while ($rule_line = db_fetch_assoc($result2)) {
3685 #                               print_r($rule_line);
3686
3687                                 $rule = array();
3688                                 $rule["reg_exp"] = $rule_line["reg_exp"];
3689                                 $rule["type"] = $rule_line["type_name"];
3690
3691                                 array_push($rules, $rule);
3692                         }
3693
3694                         $result2 = db_query($link, "SELECT a.action_param,t.name AS type_name
3695                                 FROM ttrss_filters2_actions AS a,
3696                                 ttrss_filter_actions AS t
3697                                 WHERE
3698                                         action_id = t.id AND filter_id = '$filter_id'");
3699
3700                         while ($action_line = db_fetch_assoc($result2)) {
3701 #                               print_r($action_line);
3702
3703                                 $action = array();
3704                                 $action["type"] = $action_line["type_name"];
3705                                 $action["param"] = $action_line["action_param"];
3706
3707                                 array_push($actions, $action);
3708                         }
3709
3710
3711                         $filter = array();
3712                         $filter["match_any_rule"] = sql_bool_to_bool($line["match_any_rule"]);
3713                         $filter["rules"] = $rules;
3714                         $filter["actions"] = $actions;
3715
3716                         if (count($rules) > 0 && count($actions) > 0) {
3717                                 array_push($filters, $filter);
3718                         }
3719                 }
3720
3721                 return $filters;
3722         }
3723
3724         function get_score_pic($score) {
3725                 if ($score > 100) {
3726                         return "score_high.png";
3727                 } else if ($score > 0) {
3728                         return "score_half_high.png";
3729                 } else if ($score < -100) {
3730                         return "score_low.png";
3731                 } else if ($score < 0) {
3732                         return "score_half_low.png";
3733                 } else {
3734                         return "score_neutral.png";
3735                 }
3736         }
3737
3738         function feed_has_icon($id) {
3739                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
3740         }
3741
3742         function init_connection($link) {
3743                 if ($link) {
3744
3745                         if (DB_TYPE == "pgsql") {
3746                                 pg_query($link, "set client_encoding = 'UTF-8'");
3747                                 pg_set_client_encoding("UNICODE");
3748                                 pg_query($link, "set datestyle = 'ISO, european'");
3749                                 pg_query($link, "set TIME ZONE 0");
3750                         } else {
3751                                 db_query($link, "SET time_zone = '+0:0'");
3752
3753                                 if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
3754                                         db_query($link, "SET NAMES " . MYSQL_CHARSET);
3755                                 }
3756                         }
3757                         return true;
3758                 } else {
3759                         print "Unable to connect to database:" . db_last_error();
3760                         return false;
3761                 }
3762         }
3763
3764         /* function ccache_zero($link, $feed_id, $owner_uid) {
3765                 db_query($link, "UPDATE ttrss_counters_cache SET
3766                         value = 0, updated = NOW() WHERE
3767                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3768         } */
3769
3770         function ccache_zero_all($link, $owner_uid) {
3771                 db_query($link, "UPDATE ttrss_counters_cache SET
3772                         value = 0 WHERE owner_uid = '$owner_uid'");
3773
3774                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
3775                         value = 0 WHERE owner_uid = '$owner_uid'");
3776         }
3777
3778         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
3779
3780                 if (!$is_cat) {
3781                         $table = "ttrss_counters_cache";
3782                 } else {
3783                         $table = "ttrss_cat_counters_cache";
3784                 }
3785
3786                 db_query($link, "DELETE FROM $table WHERE
3787                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3788
3789         }
3790
3791         function ccache_update_all($link, $owner_uid) {
3792
3793                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
3794
3795                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
3796                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3797
3798                         while ($line = db_fetch_assoc($result)) {
3799                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
3800                         }
3801
3802                         /* We have to manually include category 0 */
3803
3804                         ccache_update($link, 0, $owner_uid, true);
3805
3806                 } else {
3807                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
3808                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3809
3810                         while ($line = db_fetch_assoc($result)) {
3811                                 print ccache_update($link, $line["feed_id"], $owner_uid);
3812
3813                         }
3814
3815                 }
3816         }
3817
3818         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
3819                 $no_update = false) {
3820
3821                 if (!is_numeric($feed_id)) return;
3822
3823                 if (!$is_cat) {
3824                         $table = "ttrss_counters_cache";
3825                         if ($feed_id > 0) {
3826                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3827                                         WHERE id = '$feed_id'");
3828                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3829                         }
3830                 } else {
3831                         $table = "ttrss_cat_counters_cache";
3832                 }
3833
3834                 if (DB_TYPE == "pgsql") {
3835                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
3836                 } else if (DB_TYPE == "mysql") {
3837                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
3838                 }
3839
3840                 $result = db_query($link, "SELECT value FROM $table
3841                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
3842                         LIMIT 1");
3843
3844                 if (db_num_rows($result) == 1) {
3845                         return db_fetch_result($result, 0, "value");
3846                 } else {
3847                         if ($no_update) {
3848                                 return -1;
3849                         } else {
3850                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
3851                         }
3852                 }
3853
3854         }
3855
3856         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
3857                 $update_pcat = true) {
3858
3859                 if (!is_numeric($feed_id)) return;
3860
3861                 if (!$is_cat && $feed_id > 0) {
3862                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3863                                 WHERE id = '$feed_id'");
3864                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3865                 }
3866
3867                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
3868
3869                 /* When updating a label, all we need to do is recalculate feed counters
3870                  * because labels are not cached */
3871
3872                 if ($feed_id < 0) {
3873                         ccache_update_all($link, $owner_uid);
3874                         return;
3875                 }
3876
3877                 if (!$is_cat) {
3878                         $table = "ttrss_counters_cache";
3879                 } else {
3880                         $table = "ttrss_cat_counters_cache";
3881                 }
3882
3883                 if ($is_cat && $feed_id >= 0) {
3884                         if ($feed_id != 0) {
3885                                 $cat_qpart = "cat_id = '$feed_id'";
3886                         } else {
3887                                 $cat_qpart = "cat_id IS NULL";
3888                         }
3889
3890                         /* Recalculate counters for child feeds */
3891
3892                         $result = db_query($link, "SELECT id FROM ttrss_feeds
3893                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
3894
3895                         while ($line = db_fetch_assoc($result)) {
3896                                 ccache_update($link, $line["id"], $owner_uid, false, false);
3897                         }
3898
3899                         $result = db_query($link, "SELECT SUM(value) AS sv
3900                                 FROM ttrss_counters_cache, ttrss_feeds
3901                                 WHERE id = feed_id AND $cat_qpart AND
3902                                 ttrss_feeds.owner_uid = '$owner_uid'");
3903
3904                         $unread = (int) db_fetch_result($result, 0, "sv");
3905
3906                 } else {
3907                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
3908                 }
3909
3910                 db_query($link, "BEGIN");
3911
3912                 $result = db_query($link, "SELECT feed_id FROM $table
3913                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
3914
3915                 if (db_num_rows($result) == 1) {
3916                         db_query($link, "UPDATE $table SET
3917                                 value = '$unread', updated = NOW() WHERE
3918                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3919
3920                 } else {
3921                         db_query($link, "INSERT INTO $table
3922                                 (feed_id, value, owner_uid, updated)
3923                                 VALUES
3924                                 ($feed_id, $unread, $owner_uid, NOW())");
3925                 }
3926
3927                 db_query($link, "COMMIT");
3928
3929                 if ($feed_id > 0 && $prev_unread != $unread) {
3930
3931                         if (!$is_cat) {
3932
3933                                 /* Update parent category */
3934
3935                                 if ($update_pcat) {
3936
3937                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
3938                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
3939
3940                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
3941
3942                                         ccache_update($link, $cat_id, $owner_uid, true);
3943
3944                                 }
3945                         }
3946                 } else if ($feed_id < 0) {
3947                         ccache_update_all($link, $owner_uid);
3948                 }
3949
3950                 return $unread;
3951         }
3952
3953         /* function ccache_cleanup($link, $owner_uid) {
3954
3955                 if (DB_TYPE == "pgsql") {
3956                         db_query($link, "DELETE FROM ttrss_counters_cache AS c1 WHERE
3957                                 (SELECT count(*) FROM ttrss_counters_cache AS c2
3958                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3959                                         AND owner_uid = '$owner_uid'");
3960
3961                         db_query($link, "DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
3962                                 (SELECT count(*) FROM ttrss_cat_counters_cache AS c2
3963                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3964                                         AND owner_uid = '$owner_uid'");
3965                 } else {
3966                         db_query($link, "DELETE c1 FROM
3967                                         ttrss_counters_cache AS c1,
3968                                         ttrss_counters_cache AS c2
3969                                 WHERE
3970                                         c1.owner_uid = '$owner_uid' AND
3971                                         c1.owner_uid = c2.owner_uid AND
3972                                         c1.feed_id = c2.feed_id");
3973
3974                         db_query($link, "DELETE c1 FROM
3975                                         ttrss_cat_counters_cache AS c1,
3976                                         ttrss_cat_counters_cache AS c2
3977                                 WHERE
3978                                         c1.owner_uid = '$owner_uid' AND
3979                                         c1.owner_uid = c2.owner_uid AND
3980                                         c1.feed_id = c2.feed_id");
3981
3982                 }
3983         } */
3984
3985         function label_find_id($link, $label, $owner_uid) {
3986                 $result = db_query($link,
3987                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
3988                                 AND owner_uid = '$owner_uid' LIMIT 1");
3989
3990                 if (db_num_rows($result) == 1) {
3991                         return db_fetch_result($result, 0, "id");
3992                 } else {
3993                         return 0;
3994                 }
3995         }
3996
3997         function get_article_labels($link, $id) {
3998                 $rv = array();
3999
4000
4001                 $result = db_query($link, "SELECT label_cache FROM
4002                         ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
4003                         $_SESSION["uid"]);
4004
4005                 $label_cache = db_fetch_result($result, 0, "label_cache");
4006
4007                 if ($label_cache) {
4008
4009                         $label_cache = json_decode($label_cache, true);
4010
4011                         if ($label_cache["no-labels"] == 1)
4012                                 return $rv;
4013                         else
4014                                 return $label_cache;
4015                 }
4016
4017                 $result = db_query($link,
4018                         "SELECT DISTINCT label_id,caption,fg_color,bg_color
4019                                 FROM ttrss_labels2, ttrss_user_labels2
4020                         WHERE id = label_id
4021                                 AND article_id = '$id'
4022                                 AND owner_uid = ".$_SESSION["uid"] . "
4023                         ORDER BY caption");
4024
4025                 while ($line = db_fetch_assoc($result)) {
4026                         $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
4027                                 $line["bg_color"]);
4028                         array_push($rv, $rk);
4029                 }
4030
4031                 if (count($rv) > 0)
4032                         label_update_cache($link, $id, $rv);
4033                 else
4034                         label_update_cache($link, $id, array("no-labels" => 1));
4035
4036                 return $rv;
4037         }
4038
4039
4040         function label_find_caption($link, $label, $owner_uid) {
4041                 $result = db_query($link,
4042                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
4043                                 AND owner_uid = '$owner_uid' LIMIT 1");
4044
4045                 if (db_num_rows($result) == 1) {
4046                         return db_fetch_result($result, 0, "caption");
4047                 } else {
4048                         return "";
4049                 }
4050         }
4051
4052         function label_update_cache($link, $id, $labels = false, $force = false) {
4053
4054                 if ($force)
4055                         label_clear_cache($link, $id);
4056
4057                 if (!$labels)
4058                         $labels = get_article_labels($link, $id);
4059
4060                 $labels = db_escape_string(json_encode($labels));
4061
4062                 db_query($link, "UPDATE ttrss_user_entries SET
4063                         label_cache = '$labels' WHERE ref_id = '$id'");
4064
4065         }
4066
4067         function label_clear_cache($link, $id) {
4068
4069                 db_query($link, "UPDATE ttrss_user_entries SET
4070                         label_cache = '' WHERE ref_id = '$id'");
4071
4072         }
4073
4074         function label_remove_article($link, $id, $label, $owner_uid) {
4075
4076                 $label_id = label_find_id($link, $label, $owner_uid);
4077
4078                 if (!$label_id) return;
4079
4080                 $result = db_query($link,
4081                         "DELETE FROM ttrss_user_labels2
4082                         WHERE
4083                                 label_id = '$label_id' AND
4084                                 article_id = '$id'");
4085
4086                 label_clear_cache($link, $id);
4087         }
4088
4089         function label_add_article($link, $id, $label, $owner_uid) {
4090
4091                 $label_id = label_find_id($link, $label, $owner_uid);
4092
4093                 if (!$label_id) return;
4094
4095                 $result = db_query($link,
4096                         "SELECT
4097                                 article_id FROM ttrss_labels2, ttrss_user_labels2
4098                         WHERE
4099                                 label_id = id AND
4100                                 label_id = '$label_id' AND
4101                                 article_id = '$id' AND owner_uid = '$owner_uid'
4102                         LIMIT 1");
4103
4104                 if (db_num_rows($result) == 0) {
4105                         db_query($link, "INSERT INTO ttrss_user_labels2
4106                                 (label_id, article_id) VALUES ('$label_id', '$id')");
4107                 }
4108
4109                 label_clear_cache($link, $id);
4110
4111         }
4112
4113         function label_remove($link, $id, $owner_uid) {
4114                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4115
4116                 db_query($link, "BEGIN");
4117
4118                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
4119                         WHERE id = '$id'");
4120
4121                 $caption = db_fetch_result($result, 0, "caption");
4122
4123                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
4124                         AND owner_uid = " . $owner_uid);
4125
4126                 if (db_affected_rows($link, $result) != 0 && $caption) {
4127
4128                         /* Remove access key for the label */
4129
4130                         $ext_id = -11 - $id;
4131
4132                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
4133                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
4134
4135                         /* Disable filters that reference label being removed */
4136
4137                         db_query($link, "UPDATE ttrss_filters SET
4138                                 enabled = false WHERE action_param = '$caption'
4139                                         AND action_id = 7
4140                                         AND owner_uid = " . $owner_uid);
4141
4142                         /* Remove cached data */
4143
4144                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
4145                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
4146
4147                 }
4148
4149                 db_query($link, "COMMIT");
4150         }
4151
4152         function label_create($link, $caption, $fg_color = '', $bg_color = '', $owner_uid) {
4153
4154                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
4155
4156                 db_query($link, "BEGIN");
4157
4158                 $result = false;
4159
4160                 $result = db_query($link, "SELECT id FROM ttrss_labels2
4161                         WHERE caption = '$caption' AND owner_uid = $owner_uid");
4162
4163                 if (db_num_rows($result) == 0) {
4164                         $result = db_query($link,
4165                                 "INSERT INTO ttrss_labels2 (caption,owner_uid,fg_color,bg_color)
4166                                         VALUES ('$caption', '$owner_uid', '$fg_color', '$bg_color')");
4167
4168                         $result = db_affected_rows($link, $result) != 0;
4169                 }
4170
4171                 db_query($link, "COMMIT");
4172
4173                 return $result;
4174         }
4175
4176         function format_tags_string($tags, $id) {
4177
4178                 $tags_str = "";
4179                 $tags_nolinks_str = "";
4180
4181                 $num_tags = 0;
4182
4183                 $tag_limit = 6;
4184
4185                 $formatted_tags = array();
4186
4187                 foreach ($tags as $tag) {
4188                         $num_tags++;
4189                         $tag_escaped = str_replace("'", "\\'", $tag);
4190
4191                         if (mb_strlen($tag) > 30) {
4192                                 $tag = truncate_string($tag, 30);
4193                         }
4194
4195                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
4196
4197                         array_push($formatted_tags, $tag_str);
4198
4199                         $tmp_tags_str = implode(", ", $formatted_tags);
4200
4201                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
4202                                 break;
4203                         }
4204                 }
4205
4206                 $tags_str = implode(", ", $formatted_tags);
4207
4208                 if ($num_tags < count($tags)) {
4209                         $tags_str .= ", &hellip;";
4210                 }
4211
4212                 if ($num_tags == 0) {
4213                         $tags_str = __("no tags");
4214                 }
4215
4216                 return $tags_str;
4217
4218         }
4219
4220         function format_article_labels($labels, $id) {
4221
4222                 $labels_str = "";
4223
4224                 foreach ($labels as $l) {
4225                         $labels_str .= sprintf("<span class='hlLabelRef'
4226                                 style='color : %s; background-color : %s'>%s</span>",
4227                                         $l[2], $l[3], $l[1]);
4228                         }
4229
4230                 return $labels_str;
4231
4232         }
4233
4234         function format_article_note($id, $note) {
4235
4236                 $str = "<div class='articleNote'        onclick=\"editArticleNote($id)\">
4237                         <div class='noteEdit' onclick=\"editArticleNote($id)\">".
4238                         __('(edit note)')."</div>$note</div>";
4239
4240                 return $str;
4241         }
4242
4243         function toggle_collapse_cat($link, $cat_id, $mode) {
4244                 if ($cat_id > 0) {
4245                         $mode = bool_to_sql_bool($mode);
4246
4247                         db_query($link, "UPDATE ttrss_feed_categories SET
4248                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
4249                                 $_SESSION["uid"]);
4250                 } else {
4251                         $pref_name = '';
4252
4253                         switch ($cat_id) {
4254                         case -1:
4255                                 $pref_name = '_COLLAPSED_SPECIAL';
4256                                 break;
4257                         case -2:
4258                                 $pref_name = '_COLLAPSED_LABELS';
4259                                 break;
4260                         case 0:
4261                                 $pref_name = '_COLLAPSED_UNCAT';
4262                                 break;
4263                         }
4264
4265                         if ($pref_name) {
4266                                 if ($mode) {
4267                                         set_pref($link, $pref_name, 'true');
4268                                 } else {
4269                                         set_pref($link, $pref_name, 'false');
4270                                 }
4271                         }
4272                 }
4273         }
4274
4275         function remove_feed($link, $id, $owner_uid) {
4276
4277                 if ($id > 0) {
4278
4279                         /* save starred articles in Archived feed */
4280
4281                         db_query($link, "BEGIN");
4282
4283                         /* prepare feed if necessary */
4284
4285                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4286                                 WHERE id = '$id'");
4287
4288                         if (db_num_rows($result) == 0) {
4289                                 db_query($link, "INSERT INTO ttrss_archived_feeds
4290                                         (id, owner_uid, title, feed_url, site_url)
4291                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4292                                 WHERE id = '$id'");
4293                         }
4294
4295                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
4296                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
4297                                         marked = true AND owner_uid = $owner_uid");
4298
4299                         /* Remove access key for the feed */
4300
4301                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
4302                                 feed_id = '$id' AND owner_uid = $owner_uid");
4303
4304                         /* remove the feed */
4305
4306                         db_query($link, "DELETE FROM ttrss_feeds
4307                                         WHERE id = '$id' AND owner_uid = $owner_uid");
4308
4309                         db_query($link, "COMMIT");
4310
4311                         if (file_exists(ICONS_DIR . "/$id.ico")) {
4312                                 unlink(ICONS_DIR . "/$id.ico");
4313                         }
4314
4315                         ccache_remove($link, $id, $owner_uid);
4316
4317                 } else {
4318                         label_remove($link, -11-$id, $owner_uid);
4319                         ccache_remove($link, -11-$id, $owner_uid);
4320                 }
4321         }
4322
4323         function get_feed_category($link, $feed_cat, $parent_cat_id = false) {
4324                 if ($parent_cat_id) {
4325                         $parent_qpart = "parent_cat = '$parent_cat_id'";
4326                         $parent_insert = "'$parent_cat_id'";
4327                 } else {
4328                         $parent_qpart = "parent_cat IS NULL";
4329                         $parent_insert = "NULL";
4330                 }
4331
4332                 $result = db_query($link,
4333                         "SELECT id FROM ttrss_feed_categories
4334                         WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
4335
4336                 if (db_num_rows($result) == 0) {
4337                         return false;
4338                 } else {
4339                         return db_fetch_result($result, 0, "id");
4340                 }
4341         }
4342
4343         function add_feed_category($link, $feed_cat, $parent_cat_id = false) {
4344
4345                 if (!$feed_cat) return false;
4346
4347                 db_query($link, "BEGIN");
4348
4349                 if ($parent_cat_id) {
4350                         $parent_qpart = "parent_cat = '$parent_cat_id'";
4351                         $parent_insert = "'$parent_cat_id'";
4352                 } else {
4353                         $parent_qpart = "parent_cat IS NULL";
4354                         $parent_insert = "NULL";
4355                 }
4356
4357                 $result = db_query($link,
4358                         "SELECT id FROM ttrss_feed_categories
4359                         WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
4360
4361                 if (db_num_rows($result) == 0) {
4362
4363                         $result = db_query($link,
4364                                 "INSERT INTO ttrss_feed_categories (owner_uid,title,parent_cat)
4365                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat', $parent_insert)");
4366
4367                         db_query($link, "COMMIT");
4368
4369                         return true;
4370                 }
4371
4372                 return false;
4373         }
4374
4375         function remove_feed_category($link, $id, $owner_uid) {
4376
4377                 db_query($link, "DELETE FROM ttrss_feed_categories
4378                         WHERE id = '$id' AND owner_uid = $owner_uid");
4379
4380                 ccache_remove($link, $id, $owner_uid, true);
4381         }
4382
4383         function archive_article($link, $id, $owner_uid) {
4384                 db_query($link, "BEGIN");
4385
4386                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4387                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
4388
4389                 if (db_num_rows($result) != 0) {
4390
4391                         /* prepare the archived table */
4392
4393                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4394
4395                         if ($feed_id) {
4396                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4397                                         WHERE id = '$feed_id'");
4398
4399                                 if (db_num_rows($result) == 0) {
4400                                         db_query($link, "INSERT INTO ttrss_archived_feeds
4401                                                 (id, owner_uid, title, feed_url, site_url)
4402                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4403                                         WHERE id = '$feed_id'");
4404                                 }
4405
4406                                 db_query($link, "UPDATE ttrss_user_entries
4407                                         SET orig_feed_id = feed_id, feed_id = NULL
4408                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4409                         }
4410                 }
4411
4412                 db_query($link, "COMMIT");
4413         }
4414
4415         function getArticleFeed($link, $id) {
4416                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4417                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4418
4419                 if (db_num_rows($result) != 0) {
4420                         return db_fetch_result($result, 0, "feed_id");
4421                 } else {
4422                         return 0;
4423                 }
4424         }
4425
4426         /**
4427          * Fixes incomplete URLs by prepending "http://".
4428          * Also replaces feed:// with http://, and
4429          * prepends a trailing slash if the url is a domain name only.
4430          *
4431          * @param string $url Possibly incomplete URL
4432          *
4433          * @return string Fixed URL.
4434          */
4435         function fix_url($url) {
4436                 if (strpos($url, '://') === false) {
4437                         $url = 'http://' . $url;
4438                 } else if (substr($url, 0, 5) == 'feed:') {
4439                         $url = 'http:' . substr($url, 5);
4440                 }
4441
4442                 //prepend slash if the URL has no slash in it
4443                 // "http://www.example" -> "http://www.example/"
4444                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
4445                         $url .= '/';
4446                 }
4447
4448                 if ($url != "http:///")
4449                         return $url;
4450                 else
4451                         return '';
4452         }
4453
4454         function validate_feed_url($url) {
4455                 $parts = parse_url($url);
4456
4457                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
4458
4459         }
4460
4461         function get_article_enclosures($link, $id) {
4462
4463                 $query = "SELECT * FROM ttrss_enclosures
4464                         WHERE post_id = '$id' AND content_url != ''";
4465
4466                 $rv = array();
4467
4468                 $result = db_query($link, $query);
4469
4470                 if (db_num_rows($result) > 0) {
4471                         while ($line = db_fetch_assoc($result)) {
4472                                 array_push($rv, $line);
4473                         }
4474                 }
4475
4476                 return $rv;
4477         }
4478
4479         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset, $include_nested = false) {
4480
4481                         $feeds = array();
4482
4483                         /* Labels */
4484
4485                         if ($cat_id == -4 || $cat_id == -2) {
4486                                 $counters = getLabelCounters($link, true);
4487
4488                                 foreach (array_values($counters) as $cv) {
4489
4490                                         $unread = $cv["counter"];
4491
4492                                         if ($unread || !$unread_only) {
4493
4494                                                 $row = array(
4495                                                                 "id" => $cv["id"],
4496                                                                 "title" => $cv["description"],
4497                                                                 "unread" => $cv["counter"],
4498                                                                 "cat_id" => -2,
4499                                                         );
4500
4501                                                 array_push($feeds, $row);
4502                                         }
4503                                 }
4504                         }
4505
4506                         /* Virtual feeds */
4507
4508                         if ($cat_id == -4 || $cat_id == -1) {
4509                                 foreach (array(-1, -2, -3, -4, -6, 0) as $i) {
4510                                         $unread = getFeedUnread($link, $i);
4511
4512                                         if ($unread || !$unread_only) {
4513                                                 $title = getFeedTitle($link, $i);
4514
4515                                                 $row = array(
4516                                                                 "id" => $i,
4517                                                                 "title" => $title,
4518                                                                 "unread" => $unread,
4519                                                                 "cat_id" => -1,
4520                                                         );
4521                                                 array_push($feeds, $row);
4522                                         }
4523
4524                                 }
4525                         }
4526
4527                         /* Child cats */
4528
4529                         if ($include_nested && $cat_id) {
4530                                 $result = db_query($link, "SELECT
4531                                         id, title FROM ttrss_feed_categories
4532                                         WHERE parent_cat = '$cat_id' AND owner_uid = " . $_SESSION["uid"] .
4533                                 " ORDER BY id, title");
4534
4535                                 while ($line = db_fetch_assoc($result)) {
4536                                         $unread = getFeedUnread($link, $line["id"], true) +
4537                                                 getCategoryChildrenUnread($link, $line["id"]);
4538
4539                                         if ($unread || !$unread_only) {
4540                                                 $row = array(
4541                                                                 "id" => $line["id"],
4542                                                                 "title" => $line["title"],
4543                                                                 "unread" => $unread,
4544                                                                 "is_cat" => true,
4545                                                         );
4546                                                 array_push($feeds, $row);
4547                                         }
4548                                 }
4549                         }
4550
4551                         /* Real feeds */
4552
4553                         if ($limit) {
4554                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
4555                         } else {
4556                                 $limit_qpart = "";
4557                         }
4558
4559                         if ($cat_id == -4 || $cat_id == -3) {
4560                                 $result = db_query($link, "SELECT
4561                                         id, feed_url, cat_id, title, order_id, ".
4562                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4563                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
4564                                                 " ORDER BY cat_id, title " . $limit_qpart);
4565                         } else {
4566
4567                                 if ($cat_id)
4568                                         $cat_qpart = "cat_id = '$cat_id'";
4569                                 else
4570                                         $cat_qpart = "cat_id IS NULL";
4571
4572                                 $result = db_query($link, "SELECT
4573                                         id, feed_url, cat_id, title, order_id, ".
4574                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4575                                                 FROM ttrss_feeds WHERE
4576                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
4577                                                 " ORDER BY cat_id, title " . $limit_qpart);
4578                         }
4579
4580                         while ($line = db_fetch_assoc($result)) {
4581
4582                                 $unread = getFeedUnread($link, $line["id"]);
4583
4584                                 $has_icon = feed_has_icon($line['id']);
4585
4586                                 if ($unread || !$unread_only) {
4587
4588                                         $row = array(
4589                                                         "feed_url" => $line["feed_url"],
4590                                                         "title" => $line["title"],
4591                                                         "id" => (int)$line["id"],
4592                                                         "unread" => (int)$unread,
4593                                                         "has_icon" => $has_icon,
4594                                                         "cat_id" => (int)$line["cat_id"],
4595                                                         "last_updated" => strtotime($line["last_updated"]),
4596                                                         "order_id" => (int) $line["order_id"],
4597                                                 );
4598
4599                                         array_push($feeds, $row);
4600                                 }
4601                         }
4602
4603                 return $feeds;
4604         }
4605
4606         function api_get_headlines($link, $feed_id, $limit, $offset,
4607                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
4608                                 $include_attachments, $since_id,
4609                                 $search = "", $search_mode = "", $match_on = "", $include_nested = false) {
4610
4611                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
4612                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
4613                                 $order, $offset, 0, false, $since_id, $include_nested);
4614
4615                         $result = $qfh_ret[0];
4616                         $feed_title = $qfh_ret[1];
4617
4618                         $headlines = array();
4619
4620                         while ($line = db_fetch_assoc($result)) {
4621                                 $is_updated = ($line["last_read"] == "" &&
4622                                         ($line["unread"] != "t" && $line["unread"] != "1"));
4623
4624                                 $tags = explode(",", $line["tag_cache"]);
4625                                 $labels = json_decode($line["label_cache"], true);
4626
4627                                 //if (!$tags) $tags = get_article_tags($link, $line["id"]);
4628                                 //if (!$labels) $labels = get_article_labels($link, $line["id"]);
4629
4630                                 $headline_row = array(
4631                                                 "id" => (int)$line["id"],
4632                                                 "unread" => sql_bool_to_bool($line["unread"]),
4633                                                 "marked" => sql_bool_to_bool($line["marked"]),
4634                                                 "published" => sql_bool_to_bool($line["published"]),
4635                                                 "updated" => strtotime($line["updated"]),
4636                                                 "is_updated" => $is_updated,
4637                                                 "title" => $line["title"],
4638                                                 "link" => $line["link"],
4639                                                 "feed_id" => $line["feed_id"],
4640                                                 "tags" => $tags,
4641                                         );
4642
4643                                         if ($include_attachments)
4644                                                 $headline_row['attachments'] = get_article_enclosures($link,
4645                                                         $line['id']);
4646
4647                                 if ($show_excerpt) {
4648                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
4649                                         $headline_row["excerpt"] = $excerpt;
4650                                 }
4651
4652                                 if ($show_content) {
4653                                         $headline_row["content"] = $line["content_preview"];
4654                                 }
4655
4656                                 // unify label output to ease parsing
4657                                 if ($labels["no-labels"] == 1) $labels = array();
4658
4659                                 $headline_row["labels"] = $labels;
4660
4661                                 $headline_row["feed_title"] = $line["feed_title"];
4662
4663                                 $headline_row["comments_count"] = (int)$line["num_comments"];
4664                                 $headline_row["comments_link"] = $line["comments"];
4665
4666                                 $headline_row["always_display_attachments"] = sql_bool_to_bool($line["always_display_enclosures"]);
4667
4668                                 array_push($headlines, $headline_row);
4669                         }
4670
4671                         return $headlines;
4672         }
4673
4674         function generate_error_feed($link, $error) {
4675                 $reply = array();
4676
4677                 $reply['headlines']['id'] = -6;
4678                 $reply['headlines']['is_cat'] = false;
4679
4680                 $reply['headlines']['toolbar'] = '';
4681                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
4682
4683                 $reply['headlines-info'] = array("count" => 0,
4684                         "vgroup_last_feed" => '',
4685                         "unread" => 0,
4686                         "disable_cache" => true);
4687
4688                 return $reply;
4689         }
4690
4691
4692         function generate_dashboard_feed($link) {
4693                 $reply = array();
4694
4695                 $reply['headlines']['id'] = -5;
4696                 $reply['headlines']['is_cat'] = false;
4697
4698                 $reply['headlines']['toolbar'] = '';
4699                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
4700
4701                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
4702
4703                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
4704                         WHERE owner_uid = " . $_SESSION['uid']);
4705
4706                 $last_updated = db_fetch_result($result, 0, "last_updated");
4707                 $last_updated = make_local_datetime($link, $last_updated, false);
4708
4709                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
4710
4711                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
4712                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
4713
4714                 $num_errors = db_fetch_result($result, 0, "num_errors");
4715
4716                 if ($num_errors > 0) {
4717                         $reply['headlines']['content'] .= "<br/>";
4718                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
4719                                 __('Some feeds have update errors (click for details)')."</a>";
4720                 }
4721                 $reply['headlines']['content'] .= "</span></p>";
4722
4723                 $reply['headlines-info'] = array("count" => 0,
4724                         "vgroup_last_feed" => '',
4725                         "unread" => 0,
4726                         "disable_cache" => true);
4727
4728                 return $reply;
4729         }
4730
4731         function save_email_address($link, $email) {
4732                 // FIXME: implement persistent storage of emails
4733
4734                 if (!$_SESSION['stored_emails'])
4735                         $_SESSION['stored_emails'] = array();
4736
4737                 if (!in_array($email, $_SESSION['stored_emails']))
4738                         array_push($_SESSION['stored_emails'], $email);
4739         }
4740
4741         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4742                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4743
4744                 $sql_is_cat = bool_to_sql_bool($is_cat);
4745
4746                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4747                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4748                         AND owner_uid = " . $owner_uid);
4749
4750                 if (db_num_rows($result) == 1) {
4751                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4752
4753                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
4754                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
4755                                 AND owner_uid = " . $owner_uid);
4756
4757                         return $key;
4758
4759                 } else {
4760                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
4761                 }
4762         }
4763
4764         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4765
4766                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4767
4768                 $sql_is_cat = bool_to_sql_bool($is_cat);
4769
4770                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4771                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4772                         AND owner_uid = " . $owner_uid);
4773
4774                 if (db_num_rows($result) == 1) {
4775                         return db_fetch_result($result, 0, "access_key");
4776                 } else {
4777                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4778
4779                         $result = db_query($link, "INSERT INTO ttrss_access_keys
4780                                 (access_key, feed_id, is_cat, owner_uid)
4781                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
4782
4783                         return $key;
4784                 }
4785                 return false;
4786         }
4787
4788         function get_feeds_from_html($url, $content)
4789         {
4790                 $url     = fix_url($url);
4791                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
4792
4793                 libxml_use_internal_errors(true);
4794
4795                 $doc = new DOMDocument();
4796                 $doc->loadHTML($content);
4797                 $xpath = new DOMXPath($doc);
4798                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
4799                 $feedUrls = array();
4800                 foreach ($entries as $entry) {
4801                         if ($entry->hasAttribute('href')) {
4802                                 $title = $entry->getAttribute('title');
4803                                 if ($title == '') {
4804                                         $title = $entry->getAttribute('type');
4805                                 }
4806                                 $feedUrl = rewrite_relative_url(
4807                                         $baseUrl, $entry->getAttribute('href')
4808                                 );
4809                                 $feedUrls[$feedUrl] = $title;
4810                         }
4811                 }
4812                 return $feedUrls;
4813         }
4814
4815         function is_html($content) {
4816                 return preg_match("/<html|DOCTYPE html/i", $content) !== 0;
4817         }
4818
4819         function url_is_html($url, $login = false, $pass = false) {
4820                 return is_html(fetch_file_contents($url, false, $login, $pass));
4821         }
4822
4823         function print_label_select($link, $name, $value, $attributes = "") {
4824
4825                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
4826                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
4827
4828                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
4829                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
4830
4831                 while ($line = db_fetch_assoc($result)) {
4832
4833                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
4834
4835                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
4836                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
4837
4838                 }
4839
4840 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
4841
4842                 print "</select>";
4843
4844
4845         }
4846
4847         function format_article_enclosures($link, $id, $always_display_enclosures,
4848                                         $article_content) {
4849
4850                 $result = get_article_enclosures($link, $id);
4851                 $rv = '';
4852
4853                 if (count($result) > 0) {
4854
4855                         $entries_html = array();
4856                         $entries = array();
4857
4858                         foreach ($result as $line) {
4859
4860                                 $url = $line["content_url"];
4861                                 $ctype = $line["content_type"];
4862
4863                                 if (!$ctype) $ctype = __("unknown type");
4864
4865                                 $filename = substr($url, strrpos($url, "/")+1);
4866
4867 #                               $player = format_inline_player($link, $url, $ctype);
4868
4869 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4870 #                                       $filename . " (" . $ctype . ")" . "</a>";
4871
4872                                 $entry = "<div onclick=\"window.open('".htmlspecialchars($url)."')\"
4873                                         dojoType=\"dijit.MenuItem\">$filename ($ctype)</div>";
4874
4875                                 array_push($entries_html, $entry);
4876
4877                                 $entry = array();
4878
4879                                 $entry["type"] = $ctype;
4880                                 $entry["filename"] = $filename;
4881                                 $entry["url"] = $url;
4882
4883                                 array_push($entries, $entry);
4884                         }
4885
4886                         if (!get_pref($link, "STRIP_IMAGES")) {
4887                                 if ($always_display_enclosures ||
4888                                                         !preg_match("/<img/i", $article_content)) {
4889
4890                                         foreach ($entries as $entry) {
4891
4892                                                 if (preg_match("/image/", $entry["type"]) ||
4893                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
4894
4895                                                                 $rv .= "<p><img
4896                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
4897                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
4898
4899                                                 }
4900                                         }
4901                                 }
4902                         }
4903
4904                         $rv .= "<br/><div dojoType=\"dijit.form.DropDownButton\">".
4905                                 "<span>" . __('Attachments')."</span>";
4906                         $rv .= "<div dojoType=\"dijit.Menu\" style=\"display: none;\">";
4907
4908                         foreach ($entries_html as $entry) { $rv .= $entry; };
4909
4910                         $rv .= "</div></div>";
4911                 }
4912
4913                 return $rv;
4914         }
4915
4916         function getLastArticleId($link) {
4917                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
4918                         WHERE owner_uid = " . $_SESSION["uid"]);
4919
4920                 if (db_num_rows($result) == 1) {
4921                         return db_fetch_result($result, 0, "id");
4922                 } else {
4923                         return -1;
4924                 }
4925         }
4926
4927         function build_url($parts) {
4928                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
4929         }
4930
4931         /**
4932          * Converts a (possibly) relative URL to a absolute one.
4933          *
4934          * @param string $url     Base URL (i.e. from where the document is)
4935          * @param string $rel_url Possibly relative URL in the document
4936          *
4937          * @return string Absolute URL
4938          */
4939         function rewrite_relative_url($url, $rel_url) {
4940                 if (strpos($rel_url, "magnet:") === 0) {
4941                         return $rel_url;
4942                 } else if (strpos($rel_url, "://") !== false) {
4943                         return $rel_url;
4944                 } else if (strpos($rel_url, "//") === 0) {
4945                         # protocol-relative URL (rare but they exist)
4946                         return $rel_url;
4947                 } else if (strpos($rel_url, "/") === 0)
4948                 {
4949                         $parts = parse_url($url);
4950                         $parts['path'] = $rel_url;
4951
4952                         return build_url($parts);
4953
4954                 } else {
4955                         $parts = parse_url($url);
4956                         if (!isset($parts['path'])) {
4957                                 $parts['path'] = '/';
4958                         }
4959                         $dir = $parts['path'];
4960                         if (substr($dir, -1) !== '/') {
4961                                 $dir = dirname($parts['path']);
4962                                 $dir !== '/' && $dir .= '/';
4963                         }
4964                         $parts['path'] = $dir . $rel_url;
4965
4966                         return build_url($parts);
4967                 }
4968         }
4969
4970         function sphinx_search($query, $offset = 0, $limit = 30) {
4971                 require_once 'lib/sphinxapi.php';
4972
4973                 $sphinxClient = new SphinxClient();
4974
4975                 $sphinxClient->SetServer('localhost', 9312);
4976                 $sphinxClient->SetConnectTimeout(1);
4977
4978                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
4979                         'feed_title' => 20));
4980
4981                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
4982                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
4983                 $sphinxClient->SetLimits($offset, $limit, 1000);
4984                 $sphinxClient->SetArrayResult(false);
4985                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
4986
4987                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
4988
4989                 $ids = array();
4990
4991                 if (is_array($result['matches'])) {
4992                         foreach (array_keys($result['matches']) as $int_id) {
4993                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
4994                                 array_push($ids, $ref_id);
4995                         }
4996                 }
4997
4998                 return $ids;
4999         }
5000
5001         function cleanup_tags($link, $days = 14, $limit = 1000) {
5002
5003                 if (DB_TYPE == "pgsql") {
5004                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
5005                 } else if (DB_TYPE == "mysql") {
5006                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
5007                 }
5008
5009                 $tags_deleted = 0;
5010
5011                 while ($limit > 0) {
5012                         $limit_part = 500;
5013
5014                         $query = "SELECT ttrss_tags.id AS id
5015                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
5016                                 WHERE post_int_id = int_id AND $interval_query AND
5017                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
5018
5019                         $result = db_query($link, $query);
5020
5021                         $ids = array();
5022
5023                         while ($line = db_fetch_assoc($result)) {
5024                                 array_push($ids, $line['id']);
5025                         }
5026
5027                         if (count($ids) > 0) {
5028                                 $ids = join(",", $ids);
5029                                 print ".";
5030
5031                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
5032                                 $tags_deleted += db_affected_rows($link, $tmp_result);
5033                         } else {
5034                                 break;
5035                         }
5036
5037                         $limit -= $limit_part;
5038                 }
5039
5040                 print "\n";
5041
5042                 return $tags_deleted;
5043         }
5044
5045         function print_user_stylesheet($link) {
5046                 $value = get_pref($link, 'USER_STYLESHEET');
5047
5048                 if ($value) {
5049                         print "<style type=\"text/css\">";
5050                         print str_replace("<br/>", "\n", $value);
5051                         print "</style>";
5052                 }
5053
5054         }
5055
5056 /*      function rewrite_urls($line) {
5057                 global $url_regex;
5058
5059                 $urls = null;
5060
5061                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
5062                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
5063
5064                 return $result;
5065         } */
5066
5067         function rewrite_urls($html) {
5068                 libxml_use_internal_errors(true);
5069
5070                 $charset_hack = '<head>
5071                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
5072                 </head>';
5073
5074                 $doc = new DOMDocument();
5075                 $doc->loadHTML($charset_hack . $html);
5076                 $xpath = new DOMXPath($doc);
5077
5078                 $entries = $xpath->query('//*/text()');
5079
5080                 foreach ($entries as $entry) {
5081                         if (strstr($entry->wholeText, "://") !== false) {
5082                                 $text = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
5083                                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $entry->wholeText);
5084
5085                                 if ($text != $entry->wholeText) {
5086                                         $cdoc = new DOMDocument();
5087                                         $cdoc->loadHTML($charset_hack . $text);
5088
5089
5090                                         foreach ($cdoc->childNodes as $cnode) {
5091                                                 $cnode = $doc->importNode($cnode, true);
5092
5093                                                 if ($cnode) {
5094                                                         $entry->parentNode->insertBefore($cnode);
5095                                                 }
5096                                         }
5097
5098                                         $entry->parentNode->removeChild($entry);
5099
5100                                 }
5101                         }
5102                 }
5103
5104                 $node = $doc->getElementsByTagName('body')->item(0);
5105
5106                 // http://tt-rss.org/forum/viewtopic.php?f=1&t=970
5107                 if ($node)
5108                         return $doc->saveXML($node, LIBXML_NOEMPTYTAG);
5109                 else
5110                         return $html;
5111         }
5112
5113         function filter_to_sql($filter) {
5114                 $query = array();
5115
5116                 if (DB_TYPE == "pgsql")
5117                         $reg_qpart = "~";
5118                 else
5119                         $reg_qpart = "REGEXP";
5120
5121                 foreach ($filter["rules"] AS $rule) {
5122                         $regexp_valid = preg_match('/' . $rule['reg_exp'] . '/',
5123                                 $rule['reg_exp']) !== FALSE;
5124
5125                         if ($regexp_valid) {
5126
5127                                 $rule['reg_exp'] = db_escape_string($rule['reg_exp']);
5128
5129                                 switch ($rule["type"]) {
5130                                         case "title":
5131                                                 $qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
5132                                                         $rule['reg_exp'] . "')";
5133                                                 break;
5134                                         case "content":
5135                                                 $qpart = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
5136                                                         $rule['reg_exp'] . "')";
5137                                                 break;
5138                                         case "both":
5139                                                 $qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
5140                                                         $rule['reg_exp'] . "') OR LOWER(" .
5141                                                         "ttrss_entries.content) $reg_qpart LOWER('" . $rule['reg_exp'] . "')";
5142                                                 break;
5143                                         case "tag":
5144                                                 $qpart = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
5145                                                         $rule['reg_exp'] . "')";
5146                                                 break;
5147                                         case "link":
5148                                                 $qpart = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
5149                                                         $rule['reg_exp'] . "')";
5150                                                 break;
5151                                         case "author":
5152                                                 $qpart = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
5153                                                         $rule['reg_exp'] . "')";
5154                                                 break;
5155                                 }
5156
5157                                 if (isset($rule["feed_id"]) && $rule["feed_id"] > 0) {
5158                                         $qpart .= " AND feed_id = " . db_escape_string($rule["feed_id"]);
5159                                 }
5160
5161                                 if (isset($rule["cat_id"])) {
5162                                         $qpart .= " AND cat_id " . ($rule["cat_id"] ? '= ' . $rule["cat_id"] : 'IS NULL');
5163                                 }
5164
5165                                 array_push($query, "($qpart)");
5166
5167                         }
5168                 }
5169
5170                 if (count($query) > 0) {
5171                         return "(" . join($filter["match_any_rule"] ? "OR" : "AND", $query) . ")";
5172                 } else {
5173                         return "(false)";
5174                 }
5175         }
5176
5177         // Status codes:
5178         // -1  - never connected
5179         // 0   - no data received
5180         // 1   - data received successfully
5181         // 2   - did not receive valid data
5182         // >10 - server error, code + 10 (e.g. 16 means server error 6)
5183
5184         function get_linked_feeds($link, $instance_id = false) {
5185                 if ($instance_id)
5186                         $instance_qpart = "id = '$instance_id' AND ";
5187                 else
5188                         $instance_qpart = "";
5189
5190                 if (DB_TYPE == "pgsql") {
5191                         $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'";
5192                 } else {
5193                         $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)";
5194                 }
5195
5196                 $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances
5197                         WHERE $instance_qpart $date_qpart ORDER BY last_connected");
5198
5199                 while ($line = db_fetch_assoc($result)) {
5200                         $id = $line['id'];
5201
5202                         _debug("Updating: " . $line['access_url'] . " ($id)");
5203
5204                         $fetch_url = $line['access_url'] . '/public.php?op=fbexport';
5205                         $post_query = 'key=' . $line['access_key'];
5206
5207                         $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
5208
5209                         // try doing it the old way
5210                         if (!$feeds) {
5211                                 $fetch_url = $line['access_url'] . '/backend.php?op=fbexport';
5212                                 $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
5213                         }
5214
5215                         if ($feeds) {
5216                                 $feeds = json_decode($feeds, true);
5217
5218                                 if ($feeds) {
5219                                         if ($feeds['error']) {
5220                                                 $status = $feeds['error']['code'] + 10;
5221                                         } else {
5222                                                 $status = 1;
5223
5224                                                 if (count($feeds['feeds']) > 0) {
5225
5226                                                         db_query($link, "DELETE FROM ttrss_linked_feeds
5227                                                                 WHERE instance_id = '$id'");
5228
5229                                                         foreach ($feeds['feeds'] as $feed) {
5230                                                                 $feed_url = db_escape_string($feed['feed_url']);
5231                                                                 $title = db_escape_string($feed['title']);
5232                                                                 $subscribers = db_escape_string($feed['subscribers']);
5233                                                                 $site_url = db_escape_string($feed['site_url']);
5234
5235                                                                 db_query($link, "INSERT INTO ttrss_linked_feeds
5236                                                                         (feed_url, site_url, title, subscribers, instance_id, created, updated)
5237                                                                 VALUES
5238                                                                         ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())");
5239                                                         }
5240                                                 } else {
5241                                                         // received 0 feeds, this might indicate that
5242                                                         // the instance on the other hand is rebuilding feedbrowser cache
5243                                                         // we will try again later
5244
5245                                                         // TODO: maybe perform expiration based on updated here?
5246                                                 }
5247
5248                                                 _debug("Processed " . count($feeds['feeds']) . " feeds.");
5249                                         }
5250                                 } else {
5251                                         $status = 2;
5252                                 }
5253
5254                         } else {
5255                                 $status = 0;
5256                         }
5257
5258                         _debug("Status: $status");
5259
5260                         db_query($link, "UPDATE ttrss_linked_instances SET
5261                                 last_status_out = '$status', last_connected = NOW() WHERE id = '$id'");
5262
5263                 }
5264         }
5265
5266         function make_feed_browser($link, $search, $limit, $mode = 1) {
5267
5268                 $owner_uid = $_SESSION["uid"];
5269                 $rv = '';
5270
5271                 if ($search) {
5272                         $search_qpart = "AND (UPPER(feed_url) LIKE UPPER('%$search%') OR
5273                                                 UPPER(title) LIKE UPPER('%$search%'))";
5274                 } else {
5275                         $search_qpart = "";
5276                 }
5277
5278                 if ($mode == 1) {
5279                         /* $result = db_query($link, "SELECT feed_url, subscribers FROM
5280                          ttrss_feedbrowser_cache WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5281                         WHERE tf.feed_url = ttrss_feedbrowser_cache.feed_url
5282                         AND owner_uid = '$owner_uid') $search_qpart
5283                         ORDER BY subscribers DESC LIMIT $limit"); */
5284
5285                         $result = db_query($link, "SELECT feed_url, site_url, title, SUM(subscribers) AS subscribers FROM
5286                                                 (SELECT feed_url, site_url, title, subscribers FROM ttrss_feedbrowser_cache UNION ALL
5287                                                         SELECT feed_url, site_url, title, subscribers FROM ttrss_linked_feeds) AS qqq
5288                                                 WHERE
5289                                                         (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5290                                                                 WHERE tf.feed_url = qqq.feed_url
5291                                                                         AND owner_uid = '$owner_uid') $search_qpart
5292                                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT $limit");
5293
5294                 } else if ($mode == 2) {
5295                         $result = db_query($link, "SELECT *,
5296                                                 (SELECT COUNT(*) FROM ttrss_user_entries WHERE
5297                                                         orig_feed_id = ttrss_archived_feeds.id) AS articles_archived
5298                                                 FROM
5299                                                         ttrss_archived_feeds
5300                                                 WHERE
5301                                                 (SELECT COUNT(*) FROM ttrss_feeds
5302                                                         WHERE ttrss_feeds.feed_url = ttrss_archived_feeds.feed_url AND
5303                                                                 owner_uid = '$owner_uid') = 0   AND
5304                                                 owner_uid = '$owner_uid' $search_qpart
5305                                                 ORDER BY id DESC LIMIT $limit");
5306                 }
5307
5308                 $feedctr = 0;
5309
5310                 while ($line = db_fetch_assoc($result)) {
5311
5312                         if ($mode == 1) {
5313
5314                                 $feed_url = htmlspecialchars($line["feed_url"]);
5315                                 $site_url = htmlspecialchars($line["site_url"]);
5316                                 $subscribers = $line["subscribers"];
5317
5318                                 $check_box = "<input onclick='toggleSelectListRow2(this)'
5319                                                         dojoType=\"dijit.form.CheckBox\"
5320                                                         type=\"checkbox\" \">";
5321
5322                                 $class = ($feedctr % 2) ? "even" : "odd";
5323
5324                                 $site_url = "<a target=\"_blank\"
5325                                                         href=\"$site_url\">
5326                                                         <span class=\"fb_feedTitle\">".
5327                                 htmlspecialchars($line["title"])."</span></a>";
5328
5329                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5330                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5331                                                         style='vertical-align : middle'></a>";
5332
5333                                 $rv .= "<li>$check_box $feed_url $site_url".
5334                                                         "&nbsp;<span class='subscribers'>($subscribers)</span></li>";
5335
5336                         } else if ($mode == 2) {
5337                                 $feed_url = htmlspecialchars($line["feed_url"]);
5338                                 $site_url = htmlspecialchars($line["site_url"]);
5339                                 $title = htmlspecialchars($line["title"]);
5340
5341                                 $check_box = "<input onclick='toggleSelectListRow2(this)' dojoType=\"dijit.form.CheckBox\"
5342                                                         type=\"checkbox\">";
5343
5344                                 $class = ($feedctr % 2) ? "even" : "odd";
5345
5346                                 if ($line['articles_archived'] > 0) {
5347                                         $archived = sprintf(__("%d archived articles"), $line['articles_archived']);
5348                                         $archived = "&nbsp;<span class='subscribers'>($archived)</span>";
5349                                 } else {
5350                                         $archived = '';
5351                                 }
5352
5353                                 $site_url = "<a target=\"_blank\"
5354                                                         href=\"$site_url\">
5355                                                         <span class=\"fb_feedTitle\">".
5356                                 htmlspecialchars($line["title"])."</span></a>";
5357
5358                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5359                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5360                                                         style='vertical-align : middle'></a>";
5361
5362
5363                                 $rv .= "<li id=\"FBROW-".$line["id"]."\">".
5364                                                         "$check_box $feed_url $site_url $archived</li>";
5365                         }
5366
5367                         ++$feedctr;
5368                 }
5369
5370                 if ($feedctr == 0) {
5371                         $rv .= "<li style=\"text-align : center\"><p>".__('No feeds found.')."</p></li>";
5372                 }
5373
5374                 return $rv;
5375         }
5376
5377         if (!function_exists('gzdecode')) {
5378                 function gzdecode($string) { // no support for 2nd argument
5379                         return file_get_contents('compress.zlib://data:who/cares;base64,'.
5380                                 base64_encode($string));
5381                 }
5382         }
5383
5384         function perform_data_import($link, $filename, $owner_uid) {
5385
5386                 $num_imported = 0;
5387                 $num_processed = 0;
5388                 $num_feeds_created = 0;
5389
5390                 $doc = @DOMDocument::load($filename);
5391
5392                 if (!$doc) {
5393                         $contents = file_get_contents($filename);
5394
5395                         if ($contents) {
5396                                 $data = @gzuncompress($contents);
5397                         }
5398
5399                         if (!$data) {
5400                                 $data = @gzdecode($contents);
5401                         }
5402
5403                         if ($data)
5404                                 $doc = DOMDocument::loadXML($data);
5405                 }
5406
5407                 if ($doc) {
5408
5409                         $xpath = new DOMXpath($doc);
5410
5411                         $container = $doc->firstChild;
5412
5413                         if ($container && $container->hasAttribute('schema-version')) {
5414                                 $schema_version = $container->getAttribute('schema-version');
5415
5416                                 if ($schema_version != SCHEMA_VERSION) {
5417                                         print "<p>" .__("Could not import: incorrect schema version.") . "</p>";
5418                                         return;
5419                                 }
5420
5421                         } else {
5422                                 print "<p>" . __("Could not import: unrecognized document format.") . "</p>";
5423                                 return;
5424                         }
5425
5426                         $articles = $xpath->query("//article");
5427
5428                         foreach ($articles as $article_node) {
5429                                 if ($article_node->childNodes) {
5430
5431                                         $ref_id = 0;
5432
5433                                         $article = array();
5434
5435                                         foreach ($article_node->childNodes as $child) {
5436                                                 if ($child->nodeName != 'label_cache')
5437                                                         $article[$child->nodeName] = db_escape_string($child->nodeValue);
5438                                                 else
5439                                                         $article[$child->nodeName] = $child->nodeValue;
5440                                         }
5441
5442                                         //print_r($article);
5443
5444                                         if ($article['guid']) {
5445
5446                                                 ++$num_processed;
5447
5448                                                 //db_query($link, "BEGIN");
5449
5450                                                 //print 'GUID:' . $article['guid'] . "\n";
5451
5452                                                 $result = db_query($link, "SELECT id FROM ttrss_entries
5453                                                         WHERE guid = '".$article['guid']."'");
5454
5455                                                 if (db_num_rows($result) == 0) {
5456
5457                                                         $result = db_query($link,
5458                                                                 "INSERT INTO ttrss_entries
5459                                                                         (title,
5460                                                                         guid,
5461                                                                         link,
5462                                                                         updated,
5463                                                                         content,
5464                                                                         content_hash,
5465                                                                         no_orig_date,
5466                                                                         date_updated,
5467                                                                         date_entered,
5468                                                                         comments,
5469                                                                         num_comments,
5470                                                                         author)
5471                                                                 VALUES
5472                                                                         ('".$article['title']."',
5473                                                                         '".$article['guid']."',
5474                                                                         '".$article['link']."',
5475                                                                         '".$article['updated']."',
5476                                                                         '".$article['content']."',
5477                                                                         '".sha1($article['content'])."',
5478                                                                         false,
5479                                                                         NOW(),
5480                                                                         NOW(),
5481                                                                         '',
5482                                                                         '0',
5483                                                                         '')");
5484
5485                                                         $result = db_query($link, "SELECT id FROM ttrss_entries
5486                                                                 WHERE guid = '".$article['guid']."'");
5487
5488                                                         if (db_num_rows($result) != 0) {
5489                                                                 $ref_id = db_fetch_result($result, 0, "id");
5490                                                         }
5491
5492                                                 } else {
5493                                                         $ref_id = db_fetch_result($result, 0, "id");
5494                                                 }
5495
5496                                                 //print "Got ref ID: $ref_id\n";
5497
5498                                                 if ($ref_id) {
5499
5500                                                         $feed_url = $article['feed_url'];
5501                                                         $feed_title = $article['feed_title'];
5502
5503                                                         $feed = 'NULL';
5504
5505                                                         if ($feed_url && $feed_title) {
5506                                                                 $result = db_query($link, "SELECT id FROM ttrss_feeds
5507                                                                         WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
5508
5509                                                                 if (db_num_rows($result) != 0) {
5510                                                                         $feed = db_fetch_result($result, 0, "id");
5511                                                                 } else {
5512                                                                         // try autocreating feed in Uncategorized...
5513
5514                                                                         $result = db_query($link, "INSERT INTO ttrss_feeds (owner_uid,
5515                                                                                 feed_url, title) VALUES ($owner_uid, '$feed_url', '$feed_title')");
5516
5517                                                                         $result = db_query($link, "SELECT id FROM ttrss_feeds
5518                                                                                 WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
5519
5520                                                                         if (db_num_rows($result) != 0) {
5521                                                                                 ++$num_feeds_created;
5522
5523                                                                                 $feed = db_fetch_result($result, 0, "id");
5524                                                                         }
5525                                                                 }
5526                                                         }
5527
5528                                                         if ($feed != 'NULL')
5529                                                                 $feed_qpart = "feed_id = $feed";
5530                                                         else
5531                                                                 $feed_qpart = "feed_id IS NULL";
5532
5533                                                         //print "$ref_id / $feed / " . $article['title'] . "\n";
5534
5535                                                         $result = db_query($link, "SELECT int_id FROM ttrss_user_entries
5536                                                                 WHERE ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND $feed_qpart");
5537
5538                                                         if (db_num_rows($result) == 0) {
5539
5540                                                                 $marked = bool_to_sql_bool(sql_bool_to_bool($article['marked']));
5541                                                                 $published = bool_to_sql_bool(sql_bool_to_bool($article['published']));
5542                                                                 $score = (int) $article['score'];
5543
5544                                                                 $tag_cache = $article['tag_cache'];
5545                                                                 $label_cache = db_escape_string($article['label_cache']);
5546                                                                 $note = $article['note'];
5547
5548                                                                 //print "Importing " . $article['title'] . "<br/>";
5549
5550                                                                 ++$num_imported;
5551
5552                                                                 $result = db_query($link,
5553                                                                         "INSERT INTO ttrss_user_entries
5554                                                                         (ref_id, owner_uid, feed_id, unread, last_read, marked,
5555                                                                                 published, score, tag_cache, label_cache, uuid, note)
5556                                                                         VALUES ($ref_id, $owner_uid, $feed, false,
5557                                                                                 NULL, $marked, $published, $score, '$tag_cache',
5558                                                                                         '$label_cache', '', '$note')");
5559
5560                                                                 $label_cache = json_decode($label_cache, true);
5561
5562                                                                 if (is_array($label_cache) && $label_cache["no-labels"] != 1) {
5563                                                                         foreach ($label_cache as $label) {
5564
5565                                                                                 label_create($link, $label[1],
5566                                                                                         $label[2], $label[3], $owner_uid);
5567
5568                                                                                 label_add_article($link, $ref_id, $label[1], $owner_uid);
5569
5570                                                                         }
5571                                                                 }
5572
5573                                                                 //db_query($link, "COMMIT");
5574                                                         }
5575                                                 }
5576                                         }
5577                                 }
5578                         }
5579
5580                         print "<p>" .
5581                                 T_sprintf("Finished: %d articles processed, %d imported, %d feeds created.",
5582                                         $num_processed, $num_imported, $num_feeds_created) .
5583                                         "</p>";
5584
5585                 } else {
5586
5587                         print "<p>" . __("Could not load XML document.") . "</p>";
5588
5589                 }
5590         }
5591
5592         function get_random_bytes($length) {
5593                 if (function_exists('openssl_random_pseudo_bytes')) {
5594                         return openssl_random_pseudo_bytes($length);
5595                 } else {
5596                         $output = "";
5597
5598                         for ($i = 0; $i < $length; $i++)
5599                                 $output .= chr(mt_rand(0, 255));
5600
5601                         return $output;
5602                 }
5603         }
5604
5605         function read_stdin() {
5606                 $fp = fopen("php://stdin", "r");
5607
5608                 if ($fp) {
5609                         $line = trim(fgets($fp));
5610                         fclose($fp);
5611                         return $line;
5612                 }
5613
5614                 return null;
5615         }
5616
5617         function tmpdirname($path, $prefix) {
5618                 // Use PHP's tmpfile function to create a temporary
5619                 // directory name. Delete the file and keep the name.
5620                 $tempname = tempnam($path,$prefix);
5621                 if (!$tempname)
5622                         return false;
5623
5624                 if (!unlink($tempname))
5625                         return false;
5626
5627        return $tempname;
5628         }
5629
5630         function getFeedCategory($link, $feed) {
5631                 $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
5632                         WHERE id = '$feed'");
5633
5634                 if (db_num_rows($result) > 0) {
5635                         return db_fetch_result($result, 0, "cat_id");
5636                 } else {
5637                         return false;
5638                 }
5639
5640         }
5641
5642         function create_published_article($link, $title, $url, $content, $owner_uid) {
5643                 $guid = sha1($url);
5644                 $content_hash = sha1($content);
5645
5646                 $rc = false;
5647
5648                 if (!$title) $title = $url;
5649                 if (!$title && !$url) return false;
5650
5651                 if (filter_var($url, FILTER_VALIDATE_URL) === FALSE) return false;
5652
5653                 db_query($link, "BEGIN");
5654
5655                 // only check for our user data here, others might have shared this with different content etc
5656                 $result = db_query($link, "SELECT id FROM ttrss_entries, ttrss_user_entries WHERE
5657                         link = '$url' AND ref_id = id AND owner_uid = '$owner_uid' LIMIT 1");
5658
5659                 if (db_num_rows($result) != 0) {
5660                         $ref_id = db_fetch_result($result, 0, "id");
5661
5662                         $result = db_query($link, "SELECT int_id FROM ttrss_user_entries WHERE
5663                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' LIMIT 1");
5664
5665                         if (db_num_rows($result) != 0) {
5666                                 $int_id = db_fetch_result($result, 0, "int_id");
5667
5668                                 db_query($link, "UPDATE ttrss_entries SET
5669                                         content = '$content', content_hash = '$content_hash' WHERE id = '$ref_id'");
5670
5671                                 db_query($link, "UPDATE ttrss_user_entries SET published = true WHERE
5672                                                 int_id = '$int_id' AND owner_uid = '$owner_uid'");
5673                         } else {
5674
5675                                 db_query($link, "INSERT INTO ttrss_user_entries
5676                                         (ref_id, uuid, feed_id, orig_feed_id, owner_uid, published, tag_cache, label_cache, last_read, note, unread)
5677                                         VALUES
5678                                         ('$ref_id', '', NULL, NULL, $owner_uid, true, '', '', NOW(), '', false)");
5679                         }
5680
5681                         $rc = true;
5682
5683                 } else {
5684                         $result = db_query($link, "INSERT INTO ttrss_entries
5685                                 (title, guid, link, updated, content, content_hash, date_entered, date_updated)
5686                                 VALUES
5687                                 ('$title', '$guid', '$url', NOW(), '$content', '$content_hash', NOW(), NOW())");
5688
5689                         $result = db_query($link, "SELECT id FROM ttrss_entries WHERE guid = '$guid'");
5690
5691                         if (db_num_rows($result) != 0) {
5692                                 $ref_id = db_fetch_result($result, 0, "id");
5693
5694                                 db_query($link, "INSERT INTO ttrss_user_entries
5695                                         (ref_id, uuid, feed_id, orig_feed_id, owner_uid, published, tag_cache, label_cache, last_read, note, unread)
5696                                         VALUES
5697                                         ('$ref_id', '', NULL, NULL, $owner_uid, true, '', '', NOW(), '', false)");
5698
5699                                 $rc = true;
5700                         }
5701                 }
5702
5703                 db_query($link, "COMMIT");
5704
5705                 return $rc;
5706         }
5707
5708 ?>