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                                 $filter_query_part = filter_to_sql($link, $filter, $owner_uid);
2325
2326                                 // Try to check if SQL regexp implementation chokes on a valid regexp
2327                                 $result = db_query($link, "SELECT true AS true FROM ttrss_entries,
2328                                         ttrss_user_entries, ttrss_feeds, ttrss_feed_categories
2329                                         WHERE $filter_query_part LIMIT 1", false);
2330
2331                                 $test = db_fetch_result($result, 0, "true");
2332
2333                                 if (!$test) {
2334                                         $filter_query_part = "false AND";
2335                                 } else {
2336                                         $filter_query_part .= " AND";
2337                                 }
2338
2339                         } else {
2340                                 $filter_query_part = "";
2341                         }
2342
2343                         if ($since_id) {
2344                                 $since_id_part = "ttrss_entries.id > $since_id AND ";
2345                         } else {
2346                                 $since_id_part = "";
2347                         }
2348
2349                         $view_query_part = "";
2350
2351                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
2352                                 if ($search) {
2353                                         $view_query_part = " ";
2354                                 } else if ($feed != -1) {
2355                                         $unread = getFeedUnread($link, $feed, $cat_view);
2356
2357                                         if ($cat_view && $feed > 0 && $include_children)
2358                                                 $unread += getCategoryChildrenUnread($link, $feed);
2359
2360                                         if ($unread > 0) {
2361                                                 $view_query_part = " unread = true AND ";
2362                                         }
2363                                 }
2364                         }
2365
2366                         if ($view_mode == "marked") {
2367                                 $view_query_part = " marked = true AND ";
2368                         }
2369
2370                         if ($view_mode == "published") {
2371                                 $view_query_part = " published = true AND ";
2372                         }
2373
2374                         if ($view_mode == "unread") {
2375                                 $view_query_part = " unread = true AND ";
2376                         }
2377
2378                         if ($view_mode == "updated") {
2379                                 $view_query_part = " (last_read is null and unread = false) AND ";
2380                         }
2381
2382                         if ($limit > 0) {
2383                                 $limit_query_part = "LIMIT " . $limit;
2384                         }
2385
2386                         $allow_archived = false;
2387
2388                         $vfeed_query_part = "";
2389
2390                         // override query strategy and enable feed display when searching globally
2391                         if ($search && $search_mode == "all_feeds") {
2392                                 $query_strategy_part = "true";
2393                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2394                         /* tags */
2395                         } else if (!is_numeric($feed)) {
2396                                 $query_strategy_part = "true";
2397                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
2398                                         id = feed_id) as feed_title,";
2399                         } else if ($search && $search_mode == "this_cat") {
2400                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2401
2402                                 if ($feed > 0) {
2403                                         if ($include_children) {
2404                                                 $subcats = getChildCategories($link, $feed, $owner_uid);
2405                                                 array_push($subcats, $feed);
2406                                                 $cats_qpart = join(",", $subcats);
2407                                         } else {
2408                                                 $cats_qpart = $feed;
2409                                         }
2410
2411                                         $query_strategy_part = "ttrss_feeds.cat_id IN ($cats_qpart)";
2412
2413                                 } else {
2414                                         $query_strategy_part = "ttrss_feeds.cat_id IS NULL";
2415                                 }
2416
2417                         } else if ($feed > 0) {
2418
2419                                 if ($cat_view) {
2420
2421                                         if ($feed > 0) {
2422                                                 if ($include_children) {
2423                                                         # sub-cats
2424                                                         $subcats = getChildCategories($link, $feed, $owner_uid);
2425
2426                                                         array_push($subcats, $feed);
2427                                                         $query_strategy_part = "cat_id IN (".
2428                                                                         implode(",", $subcats).")";
2429
2430                                                 } else {
2431                                                         $query_strategy_part = "cat_id = '$feed'";
2432                                                 }
2433
2434                                         } else {
2435                                                 $query_strategy_part = "cat_id IS NULL";
2436                                         }
2437
2438                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2439
2440                                 } else {
2441                                         $query_strategy_part = "feed_id = '$feed'";
2442                                 }
2443                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
2444                                 $query_strategy_part = "feed_id IS NULL";
2445                                 $allow_archived = true;
2446                         } else if ($feed == 0 && $cat_view) { // uncategorized
2447                                 $query_strategy_part = "cat_id IS NULL AND feed_id IS NOT NULL";
2448                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2449                         } else if ($feed == -1) { // starred virtual feed
2450                                 $query_strategy_part = "marked = true";
2451                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2452                                 $allow_archived = true;
2453
2454                         } else if ($feed == -2) { // published virtual feed OR labels category
2455
2456                                 if (!$cat_view) {
2457                                         $query_strategy_part = "published = true";
2458                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2459                                         $allow_archived = true;
2460
2461                                         if (!$override_order) $override_order = "last_read DESC, updated DESC";
2462                                 } else {
2463                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2464
2465                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2466
2467                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
2468                                                 ttrss_user_labels2.article_id = ref_id";
2469
2470                                 }
2471                         } else if ($feed == -6) { // recently read
2472                                 $query_strategy_part = "unread = false AND last_read IS NOT NULL";
2473                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2474                                 $allow_archived = true;
2475
2476                                 if (!$override_order) $override_order = "last_read DESC";
2477                         } else if ($feed == -3) { // fresh virtual feed
2478                                 $query_strategy_part = "unread = true AND score >= 0";
2479
2480                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2481
2482                                 if (DB_TYPE == "pgsql") {
2483                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2484                                 } else {
2485                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2486                                 }
2487
2488                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2489                         } else if ($feed == -4) { // all articles virtual feed
2490                                 $query_strategy_part = "true";
2491                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2492                         } else if ($feed <= -10) { // labels
2493                                 $label_id = -$feed - 11;
2494
2495                                 $query_strategy_part = "label_id = '$label_id' AND
2496                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
2497                                         ttrss_user_labels2.article_id = ref_id";
2498
2499                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2500                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2501                                 $allow_archived = true;
2502
2503                         } else {
2504                                 $query_strategy_part = "true";
2505                         }
2506
2507                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
2508                                 $date_sort_field = "updated";
2509                         } else {
2510                                 $date_sort_field = "date_entered";
2511                         }
2512
2513                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
2514                                 $order_by = "$date_sort_field";
2515                         } else {
2516                                 $order_by = "$date_sort_field DESC";
2517                         }
2518
2519                         if ($view_mode != "noscores") {
2520                                 $order_by = "score DESC, $order_by";
2521                         }
2522
2523                         if ($override_order) {
2524                                 $order_by = $override_order;
2525                         }
2526
2527                         $feed_title = "";
2528
2529                         if ($search) {
2530                                 $feed_title = T_sprintf("Search results: %s", $search);
2531                         } else {
2532                                 if ($cat_view) {
2533                                         $feed_title = getCategoryTitle($link, $feed);
2534                                 } else {
2535                                         if (is_numeric($feed) && $feed > 0) {
2536                                                 $result = db_query($link, "SELECT title,site_url,last_error
2537                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
2538
2539                                                 $feed_title = db_fetch_result($result, 0, "title");
2540                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
2541                                                 $last_error = db_fetch_result($result, 0, "last_error");
2542                                         } else {
2543                                                 $feed_title = getFeedTitle($link, $feed);
2544                                         }
2545                                 }
2546                         }
2547
2548                         $content_query_part = "content as content_preview,";
2549
2550                         if (is_numeric($feed)) {
2551
2552                                 if ($feed >= 0) {
2553                                         $feed_kind = "Feeds";
2554                                 } else {
2555                                         $feed_kind = "Labels";
2556                                 }
2557
2558                                 if ($limit_query_part) {
2559                                         $offset_query_part = "OFFSET $offset";
2560                                 }
2561
2562                                 // proper override_order applied above
2563                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
2564                                         if (!$override_order) {
2565                                                 $order_by = "ttrss_feeds.title, $order_by";
2566                                         } else {
2567                                                 $order_by = "ttrss_feeds.title, $override_order";
2568                                         }
2569                                 }
2570
2571                                 if (!$allow_archived) {
2572                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
2573                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2574
2575                                 } else {
2576                                         $from_qpart = "ttrss_entries$ext_tables_part,ttrss_user_entries
2577                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
2578                                 }
2579
2580                                 $query = "SELECT DISTINCT
2581                                                 date_entered,
2582                                                 guid,
2583                                                 ttrss_entries.id,ttrss_entries.title,
2584                                                 updated,
2585                                                 label_cache,
2586                                                 tag_cache,
2587                                                 always_display_enclosures,
2588                                                 site_url,
2589                                                 note,
2590                                                 num_comments,
2591                                                 comments,
2592                                                 int_id,
2593                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
2594                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
2595                                                 $vfeed_query_part
2596                                                 $content_query_part
2597                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
2598                                                 author,score
2599                                         FROM
2600                                                 $from_qpart
2601                                         WHERE
2602                                         $feed_check_qpart
2603                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2604                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
2605                                         $search_query_part
2606                                         $filter_query_part
2607                                         $view_query_part
2608                                         $since_id_part
2609                                         $query_strategy_part ORDER BY $order_by
2610                                         $limit_query_part $offset_query_part";
2611
2612                                 if ($_REQUEST["debug"]) print $query;
2613
2614                                 $result = db_query($link, $query);
2615
2616                         } else {
2617                                 // browsing by tag
2618
2619                                 $select_qpart = "SELECT DISTINCT " .
2620                                                                 "date_entered," .
2621                                                                 "guid," .
2622                                                                 "note," .
2623                                                                 "ttrss_entries.id as id," .
2624                                                                 "title," .
2625                                                                 "updated," .
2626                                                                 "unread," .
2627                                                                 "feed_id," .
2628                                                                 "orig_feed_id," .
2629                                                                 "marked," .
2630                                                                 "num_comments, " .
2631                                                                 "comments, " .
2632                                                                 "tag_cache," .
2633                                                                 "label_cache," .
2634                                                                 "link," .
2635                                                                 "last_read," .
2636                                                                 SUBSTRING_FOR_DATE . "(last_read,1,19) as last_read_noms," .
2637                                                                 $since_id_part .
2638                                                                 $vfeed_query_part .
2639                                                                 $content_query_part .
2640                                                                 SUBSTRING_FOR_DATE . "(updated,1,19) as updated_noms," .
2641                                                                 "score ";
2642
2643                                 $feed_kind = "Tags";
2644                                 $all_tags = explode(",", $feed);
2645                                 if ($search_mode == 'any') {
2646                                         $tag_sql = "tag_name in (" . implode(", ", array_map("db_quote", $all_tags)) . ")";
2647                                         $from_qpart = " FROM ttrss_entries,ttrss_user_entries,ttrss_tags ";
2648                                         $where_qpart = " WHERE " .
2649                                                                    "ref_id = ttrss_entries.id AND " .
2650                                                                    "ttrss_user_entries.owner_uid = $owner_uid AND " .
2651                                                                    "post_int_id = int_id AND $tag_sql AND " .
2652                                                                    $view_query_part .
2653                                                                    $search_query_part .
2654                                                                    $query_strategy_part . " ORDER BY $order_by " .
2655                                                                    $limit_query_part;
2656
2657                                 } else {
2658                                         $i = 1;
2659                                         $sub_selects = array();
2660                                         $sub_ands = array();
2661                                         foreach ($all_tags as $term) {
2662                                                 array_push($sub_selects, "(SELECT post_int_id from ttrss_tags WHERE tag_name = " . db_quote($term) . " AND owner_uid = $owner_uid) as A$i");
2663                                                 $i++;
2664                                         }
2665                                         if ($i > 2) {
2666                                                 $x = 1;
2667                                                 $y = 2;
2668                                                 do {
2669                                                         array_push($sub_ands, "A$x.post_int_id = A$y.post_int_id");
2670                                                         $x++;
2671                                                         $y++;
2672                                                 } while ($y < $i);
2673                                         }
2674                                         array_push($sub_ands, "A1.post_int_id = ttrss_user_entries.int_id and ttrss_user_entries.owner_uid = $owner_uid");
2675                                         array_push($sub_ands, "ttrss_user_entries.ref_id = ttrss_entries.id");
2676                                         $from_qpart = " FROM " . implode(", ", $sub_selects) . ", ttrss_user_entries, ttrss_entries";
2677                                         $where_qpart = " WHERE " . implode(" AND ", $sub_ands);
2678                                 }
2679                                 //                              error_log("TAG SQL: " . $tag_sql);
2680                                 // $tag_sql = "tag_name = '$feed'";   DEFAULT way
2681
2682                                 //                              error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
2683                                 $result = db_query($link, $select_qpart . $from_qpart . $where_qpart);
2684                         }
2685
2686                         return array($result, $feed_title, $feed_site_url, $last_error);
2687
2688         }
2689
2690         function sanitize($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
2691                 global $purifier;
2692
2693                 if (!$owner) $owner = $_SESSION["uid"];
2694
2695                 $res = trim($str); if (!$res) return '';
2696
2697                 // create global Purifier object if needed
2698                 if (!$purifier) {
2699                         require_once 'lib/htmlpurifier/library/HTMLPurifier.auto.php';
2700
2701                         $config = HTMLPurifier_Config::createDefault();
2702
2703                         $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]";
2704
2705                         $config->set('HTML.SafeObject', true);
2706                         @$config->set('HTML', 'Allowed', $allowed);
2707                         $config->set('Output.FlashCompat', true);
2708                         $config->set('Attr.EnableID', true);
2709                         if (!defined('MOBILE_VERSION')) {
2710                                 @$config->set('Cache', 'SerializerPath', CACHE_DIR . "/htmlpurifier");
2711                         } else {
2712                                 @$config->set('Cache', 'SerializerPath', "../" . CACHE_DIR . "/htmlpurifier");
2713                         }
2714
2715                         $config->set('Filter.YouTube', true);
2716
2717                         $purifier = new HTMLPurifier($config);
2718                 }
2719
2720                 $res = $purifier->purify($res);
2721
2722                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
2723                         $res = preg_replace('/<img[^>]+>/is', '', $res);
2724                 }
2725
2726                 if (strpos($res, "href=") === false)
2727                         $res = rewrite_urls($res);
2728
2729                 $charset_hack = '<head>
2730                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
2731                 </head>';
2732
2733                 $res = trim($res); if (!$res) return '';
2734
2735                 libxml_use_internal_errors(true);
2736
2737                 $doc = new DOMDocument();
2738                 $doc->loadHTML($charset_hack . $res);
2739                 $xpath = new DOMXPath($doc);
2740
2741                 $entries = $xpath->query('(//a[@href]|//img[@src])');
2742                 $br_inserted = 0;
2743
2744                 foreach ($entries as $entry) {
2745
2746                         if ($site_url) {
2747
2748                                 if ($entry->hasAttribute('href'))
2749                                         $entry->setAttribute('href',
2750                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
2751
2752                                 if ($entry->hasAttribute('src'))
2753                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
2754                                                 $entry->setAttribute('src',
2755                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
2756                         }
2757
2758                         if (strtolower($entry->nodeName) == "a") {
2759                                 $entry->setAttribute("target", "_blank");
2760                         }
2761
2762                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
2763                                 $br = $doc->createElement("br");
2764
2765                                 if ($entry->parentNode->nextSibling) {
2766                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
2767                                         $br_inserted = 1;
2768                                 }
2769
2770                         }
2771                 }
2772
2773                 $node = $doc->getElementsByTagName('body')->item(0);
2774
2775                 return $doc->saveXML($node, LIBXML_NOEMPTYTAG);
2776         }
2777
2778         /**
2779          * Send by mail a digest of last articles.
2780          *
2781          * @param mixed $link The database connection.
2782          * @param integer $limit The maximum number of articles by digest.
2783          * @return boolean Return false if digests are not enabled.
2784          */
2785         function send_headlines_digests($link, $debug = false) {
2786
2787                 require_once 'lib/phpmailer/class.phpmailer.php';
2788
2789                 $user_limit = 15; // amount of users to process (e.g. emails to send out)
2790                 $limit = 1000; // maximum amount of headlines to include
2791
2792                 if ($debug) _debug("Sending digests, batch of max $user_limit users, headline limit = $limit");
2793
2794                 if (DB_TYPE == "pgsql") {
2795                         $interval_query = "last_digest_sent < NOW() - INTERVAL '1 days'";
2796                 } else if (DB_TYPE == "mysql") {
2797                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL 1 DAY)";
2798                 }
2799
2800                 $result = db_query($link, "SELECT id,email FROM ttrss_users
2801                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
2802
2803                 while ($line = db_fetch_assoc($result)) {
2804
2805                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
2806                                 $preferred_ts = strtotime(get_pref($link, 'DIGEST_PREFERRED_TIME', $line['id'], '00:00'));
2807
2808                                 // try to send digests within 2 hours of preferred time
2809                                 if ($preferred_ts && time() >= $preferred_ts &&
2810                                                 time() - $preferred_ts <= 7200) {
2811
2812                                         if ($debug) print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
2813
2814                                         $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
2815
2816                                         global $tz_offset;
2817
2818                                         // reset tz_offset global to prevent tz cache clash between users
2819                                         $tz_offset = -1;
2820
2821                                         $tuple = prepare_headlines_digest($link, $line["id"], 1, $limit);
2822                                         $digest = $tuple[0];
2823                                         $headlines_count = $tuple[1];
2824                                         $affected_ids = $tuple[2];
2825                                         $digest_text = $tuple[3];
2826
2827                                         if ($headlines_count > 0) {
2828
2829                                                 $mail = new PHPMailer();
2830
2831                                                 $mail->PluginDir = "lib/phpmailer/";
2832                                                 $mail->SetLanguage("en", "lib/phpmailer/language/");
2833
2834                                                 $mail->CharSet = "UTF-8";
2835
2836                                                 $mail->From = SMTP_FROM_ADDRESS;
2837                                                 $mail->FromName = SMTP_FROM_NAME;
2838                                                 $mail->AddAddress($line["email"], $line["login"]);
2839
2840                                                 if (SMTP_HOST) {
2841                                                         $mail->Host = SMTP_HOST;
2842                                                         $mail->Mailer = "smtp";
2843                                                         $mail->SMTPAuth = SMTP_LOGIN != '';
2844                                                         $mail->Username = SMTP_LOGIN;
2845                                                         $mail->Password = SMTP_PASSWORD;
2846                                                 }
2847
2848                                                 $mail->IsHTML(true);
2849                                                 $mail->Subject = DIGEST_SUBJECT;
2850                                                 $mail->Body = $digest;
2851                                                 $mail->AltBody = $digest_text;
2852
2853                                                 $rc = $mail->Send();
2854
2855                                                 if (!$rc && $debug) print "ERROR: " . $mail->ErrorInfo;
2856
2857                                                 if ($debug) print "RC=$rc\n";
2858
2859                                                 if ($rc && $do_catchup) {
2860                                                         if ($debug) print "Marking affected articles as read...\n";
2861                                                         catchupArticlesById($link, $affected_ids, 0, $line["id"]);
2862                                                 }
2863                                         } else {
2864                                                 if ($debug) print "No headlines\n";
2865                                         }
2866
2867                                         db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
2868                                                 WHERE id = " . $line["id"]);
2869
2870                                 }
2871                         }
2872                 }
2873
2874                 if ($debug) _debug("All done.");
2875
2876         }
2877
2878         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 1000) {
2879
2880                 require_once "lib/MiniTemplator.class.php";
2881
2882                 $tpl = new MiniTemplator;
2883                 $tpl_t = new MiniTemplator;
2884
2885                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
2886                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
2887
2888                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $user_id);
2889                 $local_ts = convert_timestamp(time(), 'UTC', $user_tz_string);
2890
2891                 $tpl->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
2892                 $tpl->setVariable('CUR_TIME', date('G:i', $local_ts));
2893
2894                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
2895                 $tpl_t->setVariable('CUR_TIME', date('G:i', $local_ts));
2896
2897                 $affected_ids = array();
2898
2899                 if (DB_TYPE == "pgsql") {
2900                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
2901                 } else if (DB_TYPE == "mysql") {
2902                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
2903                 }
2904
2905                 $result = db_query($link, "SELECT ttrss_entries.title,
2906                                 ttrss_feeds.title AS feed_title,
2907                                 COALESCE(ttrss_feed_categories.title, '".__('Uncategorized')."') AS cat_title,
2908                                 date_updated,
2909                                 ttrss_user_entries.ref_id,
2910                                 link,
2911                                 score,
2912                                 content,
2913                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
2914                         FROM
2915                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
2916                         LEFT JOIN
2917                                 ttrss_feed_categories ON (cat_id = ttrss_feed_categories.id)
2918                         WHERE
2919                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
2920                                 AND include_in_digest = true
2921                                 AND $interval_query
2922                                 AND ttrss_user_entries.owner_uid = $user_id
2923                                 AND unread = true
2924                                 AND score >= 0
2925                         ORDER BY ttrss_feed_categories.title, ttrss_feeds.title, score DESC, date_updated DESC
2926                         LIMIT $limit");
2927
2928                 $cur_feed_title = "";
2929
2930                 $headlines_count = db_num_rows($result);
2931
2932                 $headlines = array();
2933
2934                 while ($line = db_fetch_assoc($result)) {
2935                         array_push($headlines, $line);
2936                 }
2937
2938                 for ($i = 0; $i < sizeof($headlines); $i++) {
2939
2940                         $line = $headlines[$i];
2941
2942                         array_push($affected_ids, $line["ref_id"]);
2943
2944                         $updated = make_local_datetime($link, $line['last_updated'], false,
2945                                 $user_id);
2946
2947 /*                      if ($line["score"] != 0) {
2948                                 if ($line["score"] > 0) $line["score"] = '+' . $line["score"];
2949
2950                                 $line["title"] .= " (".$line['score'].")";
2951                         } */
2952
2953                         if (get_pref($link, 'ENABLE_FEED_CATS', $user_id)) {
2954                                 $line['feed_title'] = $line['cat_title'] . " / " . $line['feed_title'];
2955                         }
2956
2957                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
2958                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
2959                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
2960                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
2961                         $tpl->setVariable('ARTICLE_EXCERPT',
2962                                 truncate_string(strip_tags($line["content"]), 300));
2963 //                      $tpl->setVariable('ARTICLE_CONTENT',
2964 //                              strip_tags($article_content));
2965
2966                         $tpl->addBlock('article');
2967
2968                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
2969                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
2970                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
2971                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
2972 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
2973 //                              truncate_string(strip_tags($line["excerpt"]), 100));
2974
2975                         $tpl_t->addBlock('article');
2976
2977                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
2978                                 $tpl->addBlock('feed');
2979                                 $tpl_t->addBlock('feed');
2980                         }
2981
2982                 }
2983
2984                 $tpl->addBlock('digest');
2985                 $tpl->generateOutputToString($tmp);
2986
2987                 $tpl_t->addBlock('digest');
2988                 $tpl_t->generateOutputToString($tmp_t);
2989
2990                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
2991         }
2992
2993         function check_for_update($link) {
2994                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
2995                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
2996
2997                         $version_data = @fetch_file_contents($version_url);
2998
2999                         if ($version_data) {
3000                                 $version_data = json_decode($version_data, true);
3001                                 if ($version_data && $version_data['version']) {
3002
3003                                         if (version_compare(VERSION, $version_data['version']) == -1) {
3004                                                 return $version_data;
3005                                         }
3006                                 }
3007                         }
3008                 }
3009                 return false;
3010         }
3011
3012         function markArticlesById($link, $ids, $cmode) {
3013
3014                 $tmp_ids = array();
3015
3016                 foreach ($ids as $id) {
3017                         array_push($tmp_ids, "ref_id = '$id'");
3018                 }
3019
3020                 $ids_qpart = join(" OR ", $tmp_ids);
3021
3022                 if ($cmode == 0) {
3023                         db_query($link, "UPDATE ttrss_user_entries SET
3024                         marked = false,last_read = NOW()
3025                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3026                 } else if ($cmode == 1) {
3027                         db_query($link, "UPDATE ttrss_user_entries SET
3028                         marked = true
3029                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3030                 } else {
3031                         db_query($link, "UPDATE ttrss_user_entries SET
3032                         marked = NOT marked,last_read = NOW()
3033                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3034                 }
3035         }
3036
3037         function publishArticlesById($link, $ids, $cmode) {
3038
3039                 $tmp_ids = array();
3040
3041                 foreach ($ids as $id) {
3042                         array_push($tmp_ids, "ref_id = '$id'");
3043                 }
3044
3045                 $ids_qpart = join(" OR ", $tmp_ids);
3046
3047                 if ($cmode == 0) {
3048                         db_query($link, "UPDATE ttrss_user_entries SET
3049                         published = false,last_read = NOW()
3050                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3051                 } else if ($cmode == 1) {
3052                         db_query($link, "UPDATE ttrss_user_entries SET
3053                         published = true,last_read = NOW()
3054                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3055                 } else {
3056                         db_query($link, "UPDATE ttrss_user_entries SET
3057                         published = NOT published,last_read = NOW()
3058                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
3059                 }
3060
3061                 if (PUBSUBHUBBUB_HUB) {
3062                         $rss_link = get_self_url_prefix() .
3063                                 "/public.php?op=rss&id=-2&key=" .
3064                                 get_feed_access_key($link, -2, false);
3065
3066                         $p = new Publisher(PUBSUBHUBBUB_HUB);
3067
3068                         $pubsub_result = $p->publish_update($rss_link);
3069                 }
3070         }
3071
3072         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
3073
3074                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3075                 if (count($ids) == 0) return;
3076
3077                 $tmp_ids = array();
3078
3079                 foreach ($ids as $id) {
3080                         array_push($tmp_ids, "ref_id = '$id'");
3081                 }
3082
3083                 $ids_qpart = join(" OR ", $tmp_ids);
3084
3085                 if ($cmode == 0) {
3086                         db_query($link, "UPDATE ttrss_user_entries SET
3087                         unread = false,last_read = NOW()
3088                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3089                 } else if ($cmode == 1) {
3090                         db_query($link, "UPDATE ttrss_user_entries SET
3091                         unread = true
3092                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3093                 } else {
3094                         db_query($link, "UPDATE ttrss_user_entries SET
3095                         unread = NOT unread,last_read = NOW()
3096                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3097                 }
3098
3099                 /* update ccache */
3100
3101                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
3102                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
3103
3104                 while ($line = db_fetch_assoc($result)) {
3105                         ccache_update($link, $line["feed_id"], $owner_uid);
3106                 }
3107         }
3108
3109         function catchupArticleById($link, $id, $cmode) {
3110
3111                 if ($cmode == 0) {
3112                         db_query($link, "UPDATE ttrss_user_entries SET
3113                         unread = false,last_read = NOW()
3114                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3115                 } else if ($cmode == 1) {
3116                         db_query($link, "UPDATE ttrss_user_entries SET
3117                         unread = true
3118                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3119                 } else {
3120                         db_query($link, "UPDATE ttrss_user_entries SET
3121                         unread = NOT unread,last_read = NOW()
3122                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3123                 }
3124
3125                 $feed_id = getArticleFeed($link, $id);
3126                 ccache_update($link, $feed_id, $_SESSION["uid"]);
3127         }
3128
3129         function make_guid_from_title($title) {
3130                 return preg_replace("/[ \"\',.:;]/", "-",
3131                         mb_strtolower(strip_tags($title), 'utf-8'));
3132         }
3133
3134         function get_article_tags($link, $id, $owner_uid = 0, $tag_cache = false) {
3135
3136                 $a_id = db_escape_string($id);
3137
3138                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3139
3140                 $query = "SELECT DISTINCT tag_name,
3141                         owner_uid as owner FROM
3142                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
3143                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
3144
3145                 $obj_id = md5("TAGS:$owner_uid:$id");
3146                 $tags = array();
3147
3148                 /* check cache first */
3149
3150                 if ($tag_cache === false) {
3151                         $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
3152                                 WHERE ref_id = '$id' AND owner_uid = $owner_uid");
3153
3154                         $tag_cache = db_fetch_result($result, 0, "tag_cache");
3155                 }
3156
3157                 if ($tag_cache) {
3158                         $tags = explode(",", $tag_cache);
3159                 } else {
3160
3161                         /* do it the hard way */
3162
3163                         $tmp_result = db_query($link, $query);
3164
3165                         while ($tmp_line = db_fetch_assoc($tmp_result)) {
3166                                 array_push($tags, $tmp_line["tag_name"]);
3167                         }
3168
3169                         /* update the cache */
3170
3171                         $tags_str = db_escape_string(join(",", $tags));
3172
3173                         db_query($link, "UPDATE ttrss_user_entries
3174                                 SET tag_cache = '$tags_str' WHERE ref_id = '$id'
3175                                 AND owner_uid = $owner_uid");
3176                 }
3177
3178                 return $tags;
3179         }
3180
3181         function trim_array($array) {
3182                 $tmp = $array;
3183                 array_walk($tmp, 'trim');
3184                 return $tmp;
3185         }
3186
3187         function tag_is_valid($tag) {
3188                 if ($tag == '') return false;
3189                 if (preg_match("/^[0-9]*$/", $tag)) return false;
3190                 if (mb_strlen($tag) > 250) return false;
3191
3192                 if (function_exists('iconv')) {
3193                         $tag = iconv("utf-8", "utf-8", $tag);
3194                 }
3195
3196                 if (!$tag) return false;
3197
3198                 return true;
3199         }
3200
3201         function render_login_form($link, $form_id = 0) {
3202                 switch ($form_id) {
3203                 case 0:
3204                         require_once "login_form.php";
3205                         break;
3206                 case 1:
3207                         require_once "mobile/login_form.php";
3208                         break;
3209                 }
3210                 exit;
3211         }
3212
3213         // from http://developer.apple.com/internet/safari/faq.html
3214         function no_cache_incantation() {
3215                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
3216                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
3217                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
3218                 header("Cache-Control: post-check=0, pre-check=0", false);
3219                 header("Pragma: no-cache"); // HTTP/1.0
3220         }
3221
3222         function format_warning($msg, $id = "") {
3223                 global $link;
3224                 return "<div class=\"warning\" id=\"$id\">
3225                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3226         }
3227
3228         function format_notice($msg, $id = "") {
3229                 global $link;
3230                 return "<div class=\"notice\" id=\"$id\">
3231                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
3232         }
3233
3234         function format_error($msg, $id = "") {
3235                 global $link;
3236                 return "<div class=\"error\" id=\"$id\">
3237                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3238         }
3239
3240         function print_notice($msg) {
3241                 return print format_notice($msg);
3242         }
3243
3244         function print_warning($msg) {
3245                 return print format_warning($msg);
3246         }
3247
3248         function print_error($msg) {
3249                 return print format_error($msg);
3250         }
3251
3252
3253         function T_sprintf() {
3254                 $args = func_get_args();
3255                 return vsprintf(__(array_shift($args)), $args);
3256         }
3257
3258         function format_inline_player($link, $url, $ctype) {
3259
3260                 $entry = "";
3261
3262                 if (strpos($ctype, "audio/") === 0) {
3263
3264                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
3265                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
3266                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
3267
3268                                 $id = 'AUDIO-' . uniqid();
3269
3270                                 $entry .= "<audio id=\"$id\"\">
3271                                         <source src=\"$url\"></source>
3272                                         </audio>";
3273
3274                                 $entry .= "<span onclick=\"player(this)\"
3275                                         title=\"".__("Click to play")."\" status=\"0\"
3276                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
3277
3278                         } else {
3279
3280                                 $entry .= "<object type=\"application/x-shockwave-flash\"
3281                                         data=\"lib/button/musicplayer.swf?song_url=$url\"
3282                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
3283                                         <param name=\"movie\"
3284                                                 value=\"lib/button/musicplayer.swf?song_url=$url\" />
3285                                         </object>";
3286                         }
3287                 }
3288
3289                 $filename = substr($url, strrpos($url, "/")+1);
3290
3291                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
3292                         $filename . " (" . $ctype . ")" . "</a>";
3293
3294                 return $entry;
3295         }
3296
3297         function format_article($link, $id, $mark_as_read = true, $zoom_mode = false, $owner_uid = false) {
3298                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3299
3300                 $rv = array();
3301
3302                 $rv['id'] = $id;
3303
3304                 /* we can figure out feed_id from article id anyway, why do we
3305                  * pass feed_id here? let's ignore the argument :( */
3306
3307                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
3308                         WHERE ref_id = '$id'");
3309
3310                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
3311
3312                 $rv['feed_id'] = $feed_id;
3313
3314                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
3315
3316                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
3317                         WHERE id = '$feed_id' AND owner_uid = $owner_uid");
3318
3319                 if (db_num_rows($result) == 1) {
3320                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
3321                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
3322                 } else {
3323                         $rtl_content = false;
3324                         $always_display_enclosures = false;
3325                 }
3326
3327                 if ($rtl_content) {
3328                         $rtl_tag = "dir=\"RTL\"";
3329                         $rtl_class = "RTL";
3330                 } else {
3331                         $rtl_tag = "";
3332                         $rtl_class = "";
3333                 }
3334
3335                 if ($mark_as_read) {
3336                         $result = db_query($link, "UPDATE ttrss_user_entries
3337                                 SET unread = false,last_read = NOW()
3338                                 WHERE ref_id = '$id' AND owner_uid = $owner_uid");
3339
3340                         ccache_update($link, $feed_id, $owner_uid);
3341                 }
3342
3343                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
3344                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
3345                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
3346                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
3347                         num_comments,
3348                         tag_cache,
3349                         author,
3350                         orig_feed_id,
3351                         note
3352                         FROM ttrss_entries,ttrss_user_entries
3353                         WHERE   id = '$id' AND ref_id = id AND owner_uid = $owner_uid");
3354
3355                 if ($result) {
3356
3357                         $line = db_fetch_assoc($result);
3358
3359                         if ($line["icon_url"]) {
3360                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
3361                         } else {
3362                                 $feed_icon = "&nbsp;";
3363                         }
3364
3365                         $feed_site_url = $line['site_url'];
3366
3367                         $num_comments = $line["num_comments"];
3368                         $entry_comments = "";
3369
3370                         if ($num_comments > 0) {
3371                                 if ($line["comments"]) {
3372                                         $comments_url = htmlspecialchars($line["comments"]);
3373                                 } else {
3374                                         $comments_url = htmlspecialchars($line["link"]);
3375                                 }
3376                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
3377                         } else {
3378                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
3379                                         $entry_comments = "<a target='_blank' href=\"".htmlspecialchars($line["comments"])."\">comments</a>";
3380                                 }
3381                         }
3382
3383                         if ($zoom_mode) {
3384                                 header("Content-Type: text/html");
3385                                 $rv['content'] .= "<html><head>
3386                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
3387                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
3388                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
3389                                         </head><body>";
3390                         }
3391
3392                         $title_escaped = htmlspecialchars($line['title']);
3393
3394                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
3395                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
3396
3397                         $rv['content'] .= "<div id=\"PTITLE-FULL-$id\" style=\"display : none\">" .
3398                                 strip_tags($line['title']) . "</div>";
3399
3400                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
3401
3402                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
3403                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
3404
3405                         $entry_author = $line["author"];
3406
3407                         if ($entry_author) {
3408                                 $entry_author = __(" - ") . $entry_author;
3409                         }
3410
3411                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
3412                                 $owner_uid, true);
3413
3414                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
3415
3416                         if ($line["link"]) {
3417                                 $rv['content'] .= "<div class='postTitle'><a target='_blank'
3418                                         title=\"".htmlspecialchars($line['title'])."\"
3419                                         href=\"" .
3420                                         htmlspecialchars($line["link"]) . "\">" .
3421                                         $line["title"] .
3422                                         "<span class='author'>$entry_author</span></a></div>";
3423                         } else {
3424                                 $rv['content'] .= "<div class='postTitle'>" . $line["title"] . "$entry_author</div>";
3425                         }
3426
3427                         $tag_cache = $line["tag_cache"];
3428
3429                         if (!$tag_cache)
3430                                 $tags = get_article_tags($link, $id, $owner_uid);
3431                         else
3432                                 $tags = explode(",", $tag_cache);
3433
3434                         $tags_str = format_tags_string($tags, $id);
3435                         $tags_str_full = join(", ", $tags);
3436
3437                         if (!$tags_str_full) $tags_str_full = __("no tags");
3438
3439                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
3440
3441                         $rv['content'] .= "<div class='postTags' style='float : right'>
3442                                 <img src='".theme_image($link, 'images/tag.png')."'
3443                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
3444
3445                         if (!$zoom_mode) {
3446                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
3447                                         <a title=\"".__('Edit tags for this article')."\"
3448                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
3449
3450                                 $rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
3451                                         id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
3452                                         position=\"below\">$tags_str_full</div>";
3453
3454                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
3455                                                 class='tagsPic' style=\"cursor : pointer\"
3456                                                 onclick=\"postOpenInNewTab(event, $id)\"
3457                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
3458
3459                                 $button_plugins = explode(",", ARTICLE_BUTTON_PLUGINS);
3460
3461                                 foreach ($button_plugins as $p) {
3462                                         $pclass = trim("button_${p}");
3463
3464                                         if (class_exists($pclass)) {
3465                                                 $plugin = new $pclass($link);
3466                                                 $rv['content'] .= $plugin->render($id, $line);
3467                                         }
3468                                 }
3469
3470                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
3471                                                 class='tagsPic' style=\"cursor : pointer\"
3472                                                 onclick=\"closeArticlePanel($id)\"
3473                                                 title='".__('Close article')."'>";
3474
3475                         } else {
3476                                 $tags_str = strip_tags($tags_str);
3477                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
3478                         }
3479                         $rv['content'] .= "</div>";
3480                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
3481
3482                         if ($line["orig_feed_id"]) {
3483
3484                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
3485                                         WHERE id = ".$line["orig_feed_id"]);
3486
3487                                 if (db_num_rows($tmp_result) != 0) {
3488
3489                                         $rv['content'] .= "<div clear='both'>";
3490                                         $rv['content'] .= __("Originally from:");
3491
3492                                         $rv['content'] .= "&nbsp;";
3493
3494                                         $tmp_line = db_fetch_assoc($tmp_result);
3495
3496                                         $rv['content'] .= "<a target='_blank'
3497                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
3498                                                 $tmp_line['title'] . "</a>";
3499
3500                                         $rv['content'] .= "&nbsp;";
3501
3502                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
3503                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.png'></a>";
3504
3505                                         $rv['content'] .= "</div>";
3506                                 }
3507                         }
3508
3509                         $rv['content'] .= "</div>";
3510
3511                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
3512                                 if ($line['note']) {
3513                                         $rv['content'] .= format_article_note($id, $line['note']);
3514                                 }
3515                         $rv['content'] .= "</div>";
3516
3517                         $rv['content'] .= "<div class=\"postIcon\">" .
3518                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
3519                                 href=\"".htmlspecialchars($feed_site_url)."\">".
3520                                 $feed_icon . "</a></div>";
3521
3522                         $rv['content'] .= "<div class=\"postContent\">";
3523
3524                         // N-grams
3525
3526                         if (DB_TYPE == "pgsql" and defined('_NGRAM_TITLE_RELATED_THRESHOLD')) {
3527
3528                                 $ngram_result = db_query($link, "SELECT id,title FROM
3529                                                 ttrss_entries,ttrss_user_entries
3530                                         WHERE ref_id = id AND updated >= NOW() - INTERVAL '7 day'
3531                                                 AND similarity(title, '$title_escaped') >= "._NGRAM_TITLE_RELATED_THRESHOLD."
3532                                                 AND title != '$title_escaped'
3533                                                 AND owner_uid = $owner_uid");
3534
3535                                 if (db_num_rows($ngram_result) > 0) {
3536                                         $rv['content'] .= "<div dojoType=\"dijit.form.DropDownButton\">".
3537                                                 "<span>" . __('Related')."</span>";
3538                                         $rv['content'] .= "<div dojoType=\"dijit.Menu\" style=\"display: none;\">";
3539
3540                                         while ($nline = db_fetch_assoc($ngram_result)) {
3541                                                 $rv['content'] .= "<div onclick=\"hlOpenInNewTab(null,".$nline['id'].")\"
3542                                                         dojoType=\"dijit.MenuItem\">".$nline['title']."</div>";
3543
3544                                         }
3545                                         $rv['content'] .= "</div></div><br/";
3546                                 }
3547                         }
3548
3549                         $article_content = sanitize($link, $line["content"], false, $owner_uid,
3550                                 $feed_site_url);
3551
3552                         $rv['content'] .= $article_content;
3553
3554                         $rv['content'] .= format_article_enclosures($link, $id,
3555                                 $always_display_enclosures, $article_content);
3556
3557                         $rv['content'] .= "</div>";
3558
3559                         $rv['content'] .= "</div>";
3560
3561                 }
3562
3563                 if ($zoom_mode) {
3564                         $rv['content'] .= "
3565                                 <div style=\"text-align : center\">
3566                                 <button onclick=\"return window.close()\">".
3567                                         __("Close this window")."</button></div>";
3568                         $rv['content'] .= "</body></html>";
3569                 }
3570
3571                 return $rv;
3572
3573         }
3574
3575         function print_checkpoint($n, $s) {
3576                 $ts = getmicrotime();
3577                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
3578                 return $ts;
3579         }
3580
3581         function sanitize_tag($tag) {
3582                 $tag = trim($tag);
3583
3584                 $tag = mb_strtolower($tag, 'utf-8');
3585
3586                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
3587
3588 //              $tag = str_replace('"', "", $tag);
3589 //              $tag = str_replace("+", " ", $tag);
3590                 $tag = str_replace("technorati tag: ", "", $tag);
3591
3592                 return $tag;
3593         }
3594
3595         function get_self_url_prefix() {
3596                 return SELF_URL_PATH;
3597         }
3598
3599         function opml_publish_url($link){
3600
3601                 $url_path = get_self_url_prefix();
3602                 $url_path .= "/opml.php?op=publish&key=" .
3603                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
3604
3605                 return $url_path;
3606         }
3607
3608         /**
3609          * Purge a feed contents, marked articles excepted.
3610          *
3611          * @param mixed $link The database connection.
3612          * @param integer $id The id of the feed to purge.
3613          * @return void
3614          */
3615         function clear_feed_articles($link, $id) {
3616
3617                 if ($id != 0) {
3618                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3619                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3620                 } else {
3621                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3622                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3623                 }
3624
3625                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
3626                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
3627
3628                 ccache_update($link, $id, $_SESSION['uid']);
3629         } // function clear_feed_articles
3630
3631         /**
3632          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
3633          *
3634          * @return string The Mozilla Firefox feed adding URL.
3635          */
3636         function add_feed_url() {
3637                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
3638
3639                 $url_path = get_self_url_prefix() .
3640                         "/public.php?op=subscribe&feed_url=%s";
3641                 return $url_path;
3642         } // function add_feed_url
3643
3644         function encrypt_password($pass, $salt = '', $mode2 = false) {
3645                 if ($salt && $mode2) {
3646                         return "MODE2:" . hash('sha256', $salt . $pass);
3647                 } else if ($salt) {
3648                         return "SHA1X:" . sha1("$salt:$pass");
3649                 } else {
3650                         return "SHA1:" . sha1($pass);
3651                 }
3652         } // function encrypt_password
3653
3654         function sanitize_article_content($text) {
3655                 # we don't support CDATA sections in articles, they break our own escaping
3656                 $text = preg_replace("/\[\[CDATA/", "", $text);
3657                 $text = preg_replace("/\]\]\>/", "", $text);
3658                 return $text;
3659         }
3660
3661         function load_filters($link, $feed_id, $owner_uid, $action_id = false) {
3662                 $filters = array();
3663
3664                 $cat_id = (int)getFeedCategory($link, $feed_id);
3665
3666                 $result = db_query($link, "SELECT * FROM ttrss_filters2 WHERE
3667                         owner_uid = $owner_uid AND enabled = true");
3668
3669                 $check_cats = join(",", array_merge(
3670                         getParentCategories($link, $cat_id, $owner_uid),
3671                         array($cat_id)));
3672
3673                 while ($line = db_fetch_assoc($result)) {
3674                         $filter_id = $line["id"];
3675
3676                         $result2 = db_query($link, "SELECT
3677                                 r.reg_exp, r.feed_id, r.cat_id, r.cat_filter, t.name AS type_name
3678                                 FROM ttrss_filters2_rules AS r,
3679                                 ttrss_filter_types AS t
3680                                 WHERE
3681                                         (cat_id IS NULL OR cat_id IN ($check_cats)) AND
3682                                         (feed_id IS NULL OR feed_id = '$feed_id') AND
3683                                         filter_type = t.id AND filter_id = '$filter_id'");
3684
3685                         $rules = array();
3686                         $actions = array();
3687
3688                         while ($rule_line = db_fetch_assoc($result2)) {
3689 #                               print_r($rule_line);
3690
3691                                 $rule = array();
3692                                 $rule["reg_exp"] = $rule_line["reg_exp"];
3693                                 $rule["type"] = $rule_line["type_name"];
3694
3695                                 array_push($rules, $rule);
3696                         }
3697
3698                         $result2 = db_query($link, "SELECT a.action_param,t.name AS type_name
3699                                 FROM ttrss_filters2_actions AS a,
3700                                 ttrss_filter_actions AS t
3701                                 WHERE
3702                                         action_id = t.id AND filter_id = '$filter_id'");
3703
3704                         while ($action_line = db_fetch_assoc($result2)) {
3705 #                               print_r($action_line);
3706
3707                                 $action = array();
3708                                 $action["type"] = $action_line["type_name"];
3709                                 $action["param"] = $action_line["action_param"];
3710
3711                                 array_push($actions, $action);
3712                         }
3713
3714
3715                         $filter = array();
3716                         $filter["match_any_rule"] = sql_bool_to_bool($line["match_any_rule"]);
3717                         $filter["rules"] = $rules;
3718                         $filter["actions"] = $actions;
3719
3720                         if (count($rules) > 0 && count($actions) > 0) {
3721                                 array_push($filters, $filter);
3722                         }
3723                 }
3724
3725                 return $filters;
3726         }
3727
3728         function get_score_pic($score) {
3729                 if ($score > 100) {
3730                         return "score_high.png";
3731                 } else if ($score > 0) {
3732                         return "score_half_high.png";
3733                 } else if ($score < -100) {
3734                         return "score_low.png";
3735                 } else if ($score < 0) {
3736                         return "score_half_low.png";
3737                 } else {
3738                         return "score_neutral.png";
3739                 }
3740         }
3741
3742         function feed_has_icon($id) {
3743                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
3744         }
3745
3746         function init_connection($link) {
3747                 if ($link) {
3748
3749                         if (DB_TYPE == "pgsql") {
3750                                 pg_query($link, "set client_encoding = 'UTF-8'");
3751                                 pg_set_client_encoding("UNICODE");
3752                                 pg_query($link, "set datestyle = 'ISO, european'");
3753                                 pg_query($link, "set TIME ZONE 0");
3754                         } else {
3755                                 db_query($link, "SET time_zone = '+0:0'");
3756
3757                                 if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
3758                                         db_query($link, "SET NAMES " . MYSQL_CHARSET);
3759                                 }
3760                         }
3761                         return true;
3762                 } else {
3763                         print "Unable to connect to database:" . db_last_error();
3764                         return false;
3765                 }
3766         }
3767
3768         /* function ccache_zero($link, $feed_id, $owner_uid) {
3769                 db_query($link, "UPDATE ttrss_counters_cache SET
3770                         value = 0, updated = NOW() WHERE
3771                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3772         } */
3773
3774         function ccache_zero_all($link, $owner_uid) {
3775                 db_query($link, "UPDATE ttrss_counters_cache SET
3776                         value = 0 WHERE owner_uid = '$owner_uid'");
3777
3778                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
3779                         value = 0 WHERE owner_uid = '$owner_uid'");
3780         }
3781
3782         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
3783
3784                 if (!$is_cat) {
3785                         $table = "ttrss_counters_cache";
3786                 } else {
3787                         $table = "ttrss_cat_counters_cache";
3788                 }
3789
3790                 db_query($link, "DELETE FROM $table WHERE
3791                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3792
3793         }
3794
3795         function ccache_update_all($link, $owner_uid) {
3796
3797                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
3798
3799                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
3800                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3801
3802                         while ($line = db_fetch_assoc($result)) {
3803                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
3804                         }
3805
3806                         /* We have to manually include category 0 */
3807
3808                         ccache_update($link, 0, $owner_uid, true);
3809
3810                 } else {
3811                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
3812                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3813
3814                         while ($line = db_fetch_assoc($result)) {
3815                                 print ccache_update($link, $line["feed_id"], $owner_uid);
3816
3817                         }
3818
3819                 }
3820         }
3821
3822         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
3823                 $no_update = false) {
3824
3825                 if (!is_numeric($feed_id)) return;
3826
3827                 if (!$is_cat) {
3828                         $table = "ttrss_counters_cache";
3829                         if ($feed_id > 0) {
3830                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3831                                         WHERE id = '$feed_id'");
3832                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3833                         }
3834                 } else {
3835                         $table = "ttrss_cat_counters_cache";
3836                 }
3837
3838                 if (DB_TYPE == "pgsql") {
3839                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
3840                 } else if (DB_TYPE == "mysql") {
3841                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
3842                 }
3843
3844                 $result = db_query($link, "SELECT value FROM $table
3845                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
3846                         LIMIT 1");
3847
3848                 if (db_num_rows($result) == 1) {
3849                         return db_fetch_result($result, 0, "value");
3850                 } else {
3851                         if ($no_update) {
3852                                 return -1;
3853                         } else {
3854                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
3855                         }
3856                 }
3857
3858         }
3859
3860         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
3861                 $update_pcat = true) {
3862
3863                 if (!is_numeric($feed_id)) return;
3864
3865                 if (!$is_cat && $feed_id > 0) {
3866                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3867                                 WHERE id = '$feed_id'");
3868                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3869                 }
3870
3871                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
3872
3873                 /* When updating a label, all we need to do is recalculate feed counters
3874                  * because labels are not cached */
3875
3876                 if ($feed_id < 0) {
3877                         ccache_update_all($link, $owner_uid);
3878                         return;
3879                 }
3880
3881                 if (!$is_cat) {
3882                         $table = "ttrss_counters_cache";
3883                 } else {
3884                         $table = "ttrss_cat_counters_cache";
3885                 }
3886
3887                 if ($is_cat && $feed_id >= 0) {
3888                         if ($feed_id != 0) {
3889                                 $cat_qpart = "cat_id = '$feed_id'";
3890                         } else {
3891                                 $cat_qpart = "cat_id IS NULL";
3892                         }
3893
3894                         /* Recalculate counters for child feeds */
3895
3896                         $result = db_query($link, "SELECT id FROM ttrss_feeds
3897                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
3898
3899                         while ($line = db_fetch_assoc($result)) {
3900                                 ccache_update($link, $line["id"], $owner_uid, false, false);
3901                         }
3902
3903                         $result = db_query($link, "SELECT SUM(value) AS sv
3904                                 FROM ttrss_counters_cache, ttrss_feeds
3905                                 WHERE id = feed_id AND $cat_qpart AND
3906                                 ttrss_feeds.owner_uid = '$owner_uid'");
3907
3908                         $unread = (int) db_fetch_result($result, 0, "sv");
3909
3910                 } else {
3911                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
3912                 }
3913
3914                 db_query($link, "BEGIN");
3915
3916                 $result = db_query($link, "SELECT feed_id FROM $table
3917                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
3918
3919                 if (db_num_rows($result) == 1) {
3920                         db_query($link, "UPDATE $table SET
3921                                 value = '$unread', updated = NOW() WHERE
3922                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3923
3924                 } else {
3925                         db_query($link, "INSERT INTO $table
3926                                 (feed_id, value, owner_uid, updated)
3927                                 VALUES
3928                                 ($feed_id, $unread, $owner_uid, NOW())");
3929                 }
3930
3931                 db_query($link, "COMMIT");
3932
3933                 if ($feed_id > 0 && $prev_unread != $unread) {
3934
3935                         if (!$is_cat) {
3936
3937                                 /* Update parent category */
3938
3939                                 if ($update_pcat) {
3940
3941                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
3942                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
3943
3944                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
3945
3946                                         ccache_update($link, $cat_id, $owner_uid, true);
3947
3948                                 }
3949                         }
3950                 } else if ($feed_id < 0) {
3951                         ccache_update_all($link, $owner_uid);
3952                 }
3953
3954                 return $unread;
3955         }
3956
3957         /* function ccache_cleanup($link, $owner_uid) {
3958
3959                 if (DB_TYPE == "pgsql") {
3960                         db_query($link, "DELETE FROM ttrss_counters_cache AS c1 WHERE
3961                                 (SELECT count(*) FROM ttrss_counters_cache AS c2
3962                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3963                                         AND owner_uid = '$owner_uid'");
3964
3965                         db_query($link, "DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
3966                                 (SELECT count(*) FROM ttrss_cat_counters_cache AS c2
3967                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3968                                         AND owner_uid = '$owner_uid'");
3969                 } else {
3970                         db_query($link, "DELETE c1 FROM
3971                                         ttrss_counters_cache AS c1,
3972                                         ttrss_counters_cache AS c2
3973                                 WHERE
3974                                         c1.owner_uid = '$owner_uid' AND
3975                                         c1.owner_uid = c2.owner_uid AND
3976                                         c1.feed_id = c2.feed_id");
3977
3978                         db_query($link, "DELETE c1 FROM
3979                                         ttrss_cat_counters_cache AS c1,
3980                                         ttrss_cat_counters_cache AS c2
3981                                 WHERE
3982                                         c1.owner_uid = '$owner_uid' AND
3983                                         c1.owner_uid = c2.owner_uid AND
3984                                         c1.feed_id = c2.feed_id");
3985
3986                 }
3987         } */
3988
3989         function label_find_id($link, $label, $owner_uid) {
3990                 $result = db_query($link,
3991                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
3992                                 AND owner_uid = '$owner_uid' LIMIT 1");
3993
3994                 if (db_num_rows($result) == 1) {
3995                         return db_fetch_result($result, 0, "id");
3996                 } else {
3997                         return 0;
3998                 }
3999         }
4000
4001         function get_article_labels($link, $id) {
4002                 $rv = array();
4003
4004
4005                 $result = db_query($link, "SELECT label_cache FROM
4006                         ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
4007                         $_SESSION["uid"]);
4008
4009                 $label_cache = db_fetch_result($result, 0, "label_cache");
4010
4011                 if ($label_cache) {
4012
4013                         $label_cache = json_decode($label_cache, true);
4014
4015                         if ($label_cache["no-labels"] == 1)
4016                                 return $rv;
4017                         else
4018                                 return $label_cache;
4019                 }
4020
4021                 $result = db_query($link,
4022                         "SELECT DISTINCT label_id,caption,fg_color,bg_color
4023                                 FROM ttrss_labels2, ttrss_user_labels2
4024                         WHERE id = label_id
4025                                 AND article_id = '$id'
4026                                 AND owner_uid = ".$_SESSION["uid"] . "
4027                         ORDER BY caption");
4028
4029                 while ($line = db_fetch_assoc($result)) {
4030                         $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
4031                                 $line["bg_color"]);
4032                         array_push($rv, $rk);
4033                 }
4034
4035                 if (count($rv) > 0)
4036                         label_update_cache($link, $id, $rv);
4037                 else
4038                         label_update_cache($link, $id, array("no-labels" => 1));
4039
4040                 return $rv;
4041         }
4042
4043
4044         function label_find_caption($link, $label, $owner_uid) {
4045                 $result = db_query($link,
4046                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
4047                                 AND owner_uid = '$owner_uid' LIMIT 1");
4048
4049                 if (db_num_rows($result) == 1) {
4050                         return db_fetch_result($result, 0, "caption");
4051                 } else {
4052                         return "";
4053                 }
4054         }
4055
4056         function label_update_cache($link, $id, $labels = false, $force = false) {
4057
4058                 if ($force)
4059                         label_clear_cache($link, $id);
4060
4061                 if (!$labels)
4062                         $labels = get_article_labels($link, $id);
4063
4064                 $labels = db_escape_string(json_encode($labels));
4065
4066                 db_query($link, "UPDATE ttrss_user_entries SET
4067                         label_cache = '$labels' WHERE ref_id = '$id'");
4068
4069         }
4070
4071         function label_clear_cache($link, $id) {
4072
4073                 db_query($link, "UPDATE ttrss_user_entries SET
4074                         label_cache = '' WHERE ref_id = '$id'");
4075
4076         }
4077
4078         function label_remove_article($link, $id, $label, $owner_uid) {
4079
4080                 $label_id = label_find_id($link, $label, $owner_uid);
4081
4082                 if (!$label_id) return;
4083
4084                 $result = db_query($link,
4085                         "DELETE FROM ttrss_user_labels2
4086                         WHERE
4087                                 label_id = '$label_id' AND
4088                                 article_id = '$id'");
4089
4090                 label_clear_cache($link, $id);
4091         }
4092
4093         function label_add_article($link, $id, $label, $owner_uid) {
4094
4095                 $label_id = label_find_id($link, $label, $owner_uid);
4096
4097                 if (!$label_id) return;
4098
4099                 $result = db_query($link,
4100                         "SELECT
4101                                 article_id FROM ttrss_labels2, ttrss_user_labels2
4102                         WHERE
4103                                 label_id = id AND
4104                                 label_id = '$label_id' AND
4105                                 article_id = '$id' AND owner_uid = '$owner_uid'
4106                         LIMIT 1");
4107
4108                 if (db_num_rows($result) == 0) {
4109                         db_query($link, "INSERT INTO ttrss_user_labels2
4110                                 (label_id, article_id) VALUES ('$label_id', '$id')");
4111                 }
4112
4113                 label_clear_cache($link, $id);
4114
4115         }
4116
4117         function label_remove($link, $id, $owner_uid) {
4118                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4119
4120                 db_query($link, "BEGIN");
4121
4122                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
4123                         WHERE id = '$id'");
4124
4125                 $caption = db_fetch_result($result, 0, "caption");
4126
4127                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
4128                         AND owner_uid = " . $owner_uid);
4129
4130                 if (db_affected_rows($link, $result) != 0 && $caption) {
4131
4132                         /* Remove access key for the label */
4133
4134                         $ext_id = -11 - $id;
4135
4136                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
4137                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
4138
4139                         /* Disable filters that reference label being removed */
4140
4141                         db_query($link, "UPDATE ttrss_filters SET
4142                                 enabled = false WHERE action_param = '$caption'
4143                                         AND action_id = 7
4144                                         AND owner_uid = " . $owner_uid);
4145
4146                         /* Remove cached data */
4147
4148                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
4149                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
4150
4151                 }
4152
4153                 db_query($link, "COMMIT");
4154         }
4155
4156         function label_create($link, $caption, $fg_color = '', $bg_color = '', $owner_uid) {
4157
4158                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
4159
4160                 db_query($link, "BEGIN");
4161
4162                 $result = false;
4163
4164                 $result = db_query($link, "SELECT id FROM ttrss_labels2
4165                         WHERE caption = '$caption' AND owner_uid = $owner_uid");
4166
4167                 if (db_num_rows($result) == 0) {
4168                         $result = db_query($link,
4169                                 "INSERT INTO ttrss_labels2 (caption,owner_uid,fg_color,bg_color)
4170                                         VALUES ('$caption', '$owner_uid', '$fg_color', '$bg_color')");
4171
4172                         $result = db_affected_rows($link, $result) != 0;
4173                 }
4174
4175                 db_query($link, "COMMIT");
4176
4177                 return $result;
4178         }
4179
4180         function format_tags_string($tags, $id) {
4181
4182                 $tags_str = "";
4183                 $tags_nolinks_str = "";
4184
4185                 $num_tags = 0;
4186
4187                 $tag_limit = 6;
4188
4189                 $formatted_tags = array();
4190
4191                 foreach ($tags as $tag) {
4192                         $num_tags++;
4193                         $tag_escaped = str_replace("'", "\\'", $tag);
4194
4195                         if (mb_strlen($tag) > 30) {
4196                                 $tag = truncate_string($tag, 30);
4197                         }
4198
4199                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
4200
4201                         array_push($formatted_tags, $tag_str);
4202
4203                         $tmp_tags_str = implode(", ", $formatted_tags);
4204
4205                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
4206                                 break;
4207                         }
4208                 }
4209
4210                 $tags_str = implode(", ", $formatted_tags);
4211
4212                 if ($num_tags < count($tags)) {
4213                         $tags_str .= ", &hellip;";
4214                 }
4215
4216                 if ($num_tags == 0) {
4217                         $tags_str = __("no tags");
4218                 }
4219
4220                 return $tags_str;
4221
4222         }
4223
4224         function format_article_labels($labels, $id) {
4225
4226                 $labels_str = "";
4227
4228                 foreach ($labels as $l) {
4229                         $labels_str .= sprintf("<span class='hlLabelRef'
4230                                 style='color : %s; background-color : %s'>%s</span>",
4231                                         $l[2], $l[3], $l[1]);
4232                         }
4233
4234                 return $labels_str;
4235
4236         }
4237
4238         function format_article_note($id, $note) {
4239
4240                 $str = "<div class='articleNote'        onclick=\"editArticleNote($id)\">
4241                         <div class='noteEdit' onclick=\"editArticleNote($id)\">".
4242                         __('(edit note)')."</div>$note</div>";
4243
4244                 return $str;
4245         }
4246
4247         function toggle_collapse_cat($link, $cat_id, $mode) {
4248                 if ($cat_id > 0) {
4249                         $mode = bool_to_sql_bool($mode);
4250
4251                         db_query($link, "UPDATE ttrss_feed_categories SET
4252                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
4253                                 $_SESSION["uid"]);
4254                 } else {
4255                         $pref_name = '';
4256
4257                         switch ($cat_id) {
4258                         case -1:
4259                                 $pref_name = '_COLLAPSED_SPECIAL';
4260                                 break;
4261                         case -2:
4262                                 $pref_name = '_COLLAPSED_LABELS';
4263                                 break;
4264                         case 0:
4265                                 $pref_name = '_COLLAPSED_UNCAT';
4266                                 break;
4267                         }
4268
4269                         if ($pref_name) {
4270                                 if ($mode) {
4271                                         set_pref($link, $pref_name, 'true');
4272                                 } else {
4273                                         set_pref($link, $pref_name, 'false');
4274                                 }
4275                         }
4276                 }
4277         }
4278
4279         function remove_feed($link, $id, $owner_uid) {
4280
4281                 if ($id > 0) {
4282
4283                         /* save starred articles in Archived feed */
4284
4285                         db_query($link, "BEGIN");
4286
4287                         /* prepare feed if necessary */
4288
4289                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4290                                 WHERE id = '$id'");
4291
4292                         if (db_num_rows($result) == 0) {
4293                                 db_query($link, "INSERT INTO ttrss_archived_feeds
4294                                         (id, owner_uid, title, feed_url, site_url)
4295                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4296                                 WHERE id = '$id'");
4297                         }
4298
4299                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
4300                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
4301                                         marked = true AND owner_uid = $owner_uid");
4302
4303                         /* Remove access key for the feed */
4304
4305                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
4306                                 feed_id = '$id' AND owner_uid = $owner_uid");
4307
4308                         /* remove the feed */
4309
4310                         db_query($link, "DELETE FROM ttrss_feeds
4311                                         WHERE id = '$id' AND owner_uid = $owner_uid");
4312
4313                         db_query($link, "COMMIT");
4314
4315                         if (file_exists(ICONS_DIR . "/$id.ico")) {
4316                                 unlink(ICONS_DIR . "/$id.ico");
4317                         }
4318
4319                         ccache_remove($link, $id, $owner_uid);
4320
4321                 } else {
4322                         label_remove($link, -11-$id, $owner_uid);
4323                         ccache_remove($link, -11-$id, $owner_uid);
4324                 }
4325         }
4326
4327         function get_feed_category($link, $feed_cat, $parent_cat_id = false) {
4328                 if ($parent_cat_id) {
4329                         $parent_qpart = "parent_cat = '$parent_cat_id'";
4330                         $parent_insert = "'$parent_cat_id'";
4331                 } else {
4332                         $parent_qpart = "parent_cat IS NULL";
4333                         $parent_insert = "NULL";
4334                 }
4335
4336                 $result = db_query($link,
4337                         "SELECT id FROM ttrss_feed_categories
4338                         WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
4339
4340                 if (db_num_rows($result) == 0) {
4341                         return false;
4342                 } else {
4343                         return db_fetch_result($result, 0, "id");
4344                 }
4345         }
4346
4347         function add_feed_category($link, $feed_cat, $parent_cat_id = false) {
4348
4349                 if (!$feed_cat) return false;
4350
4351                 db_query($link, "BEGIN");
4352
4353                 if ($parent_cat_id) {
4354                         $parent_qpart = "parent_cat = '$parent_cat_id'";
4355                         $parent_insert = "'$parent_cat_id'";
4356                 } else {
4357                         $parent_qpart = "parent_cat IS NULL";
4358                         $parent_insert = "NULL";
4359                 }
4360
4361                 $result = db_query($link,
4362                         "SELECT id FROM ttrss_feed_categories
4363                         WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
4364
4365                 if (db_num_rows($result) == 0) {
4366
4367                         $result = db_query($link,
4368                                 "INSERT INTO ttrss_feed_categories (owner_uid,title,parent_cat)
4369                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat', $parent_insert)");
4370
4371                         db_query($link, "COMMIT");
4372
4373                         return true;
4374                 }
4375
4376                 return false;
4377         }
4378
4379         function remove_feed_category($link, $id, $owner_uid) {
4380
4381                 db_query($link, "DELETE FROM ttrss_feed_categories
4382                         WHERE id = '$id' AND owner_uid = $owner_uid");
4383
4384                 ccache_remove($link, $id, $owner_uid, true);
4385         }
4386
4387         function archive_article($link, $id, $owner_uid) {
4388                 db_query($link, "BEGIN");
4389
4390                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4391                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
4392
4393                 if (db_num_rows($result) != 0) {
4394
4395                         /* prepare the archived table */
4396
4397                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4398
4399                         if ($feed_id) {
4400                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4401                                         WHERE id = '$feed_id'");
4402
4403                                 if (db_num_rows($result) == 0) {
4404                                         db_query($link, "INSERT INTO ttrss_archived_feeds
4405                                                 (id, owner_uid, title, feed_url, site_url)
4406                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4407                                         WHERE id = '$feed_id'");
4408                                 }
4409
4410                                 db_query($link, "UPDATE ttrss_user_entries
4411                                         SET orig_feed_id = feed_id, feed_id = NULL
4412                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4413                         }
4414                 }
4415
4416                 db_query($link, "COMMIT");
4417         }
4418
4419         function getArticleFeed($link, $id) {
4420                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4421                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4422
4423                 if (db_num_rows($result) != 0) {
4424                         return db_fetch_result($result, 0, "feed_id");
4425                 } else {
4426                         return 0;
4427                 }
4428         }
4429
4430         /**
4431          * Fixes incomplete URLs by prepending "http://".
4432          * Also replaces feed:// with http://, and
4433          * prepends a trailing slash if the url is a domain name only.
4434          *
4435          * @param string $url Possibly incomplete URL
4436          *
4437          * @return string Fixed URL.
4438          */
4439         function fix_url($url) {
4440                 if (strpos($url, '://') === false) {
4441                         $url = 'http://' . $url;
4442                 } else if (substr($url, 0, 5) == 'feed:') {
4443                         $url = 'http:' . substr($url, 5);
4444                 }
4445
4446                 //prepend slash if the URL has no slash in it
4447                 // "http://www.example" -> "http://www.example/"
4448                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
4449                         $url .= '/';
4450                 }
4451
4452                 if ($url != "http:///")
4453                         return $url;
4454                 else
4455                         return '';
4456         }
4457
4458         function validate_feed_url($url) {
4459                 $parts = parse_url($url);
4460
4461                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
4462
4463         }
4464
4465         function get_article_enclosures($link, $id) {
4466
4467                 $query = "SELECT * FROM ttrss_enclosures
4468                         WHERE post_id = '$id' AND content_url != ''";
4469
4470                 $rv = array();
4471
4472                 $result = db_query($link, $query);
4473
4474                 if (db_num_rows($result) > 0) {
4475                         while ($line = db_fetch_assoc($result)) {
4476                                 array_push($rv, $line);
4477                         }
4478                 }
4479
4480                 return $rv;
4481         }
4482
4483         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset, $include_nested = false) {
4484
4485                         $feeds = array();
4486
4487                         /* Labels */
4488
4489                         if ($cat_id == -4 || $cat_id == -2) {
4490                                 $counters = getLabelCounters($link, true);
4491
4492                                 foreach (array_values($counters) as $cv) {
4493
4494                                         $unread = $cv["counter"];
4495
4496                                         if ($unread || !$unread_only) {
4497
4498                                                 $row = array(
4499                                                                 "id" => $cv["id"],
4500                                                                 "title" => $cv["description"],
4501                                                                 "unread" => $cv["counter"],
4502                                                                 "cat_id" => -2,
4503                                                         );
4504
4505                                                 array_push($feeds, $row);
4506                                         }
4507                                 }
4508                         }
4509
4510                         /* Virtual feeds */
4511
4512                         if ($cat_id == -4 || $cat_id == -1) {
4513                                 foreach (array(-1, -2, -3, -4, -6, 0) as $i) {
4514                                         $unread = getFeedUnread($link, $i);
4515
4516                                         if ($unread || !$unread_only) {
4517                                                 $title = getFeedTitle($link, $i);
4518
4519                                                 $row = array(
4520                                                                 "id" => $i,
4521                                                                 "title" => $title,
4522                                                                 "unread" => $unread,
4523                                                                 "cat_id" => -1,
4524                                                         );
4525                                                 array_push($feeds, $row);
4526                                         }
4527
4528                                 }
4529                         }
4530
4531                         /* Child cats */
4532
4533                         if ($include_nested && $cat_id) {
4534                                 $result = db_query($link, "SELECT
4535                                         id, title FROM ttrss_feed_categories
4536                                         WHERE parent_cat = '$cat_id' AND owner_uid = " . $_SESSION["uid"] .
4537                                 " ORDER BY id, title");
4538
4539                                 while ($line = db_fetch_assoc($result)) {
4540                                         $unread = getFeedUnread($link, $line["id"], true) +
4541                                                 getCategoryChildrenUnread($link, $line["id"]);
4542
4543                                         if ($unread || !$unread_only) {
4544                                                 $row = array(
4545                                                                 "id" => $line["id"],
4546                                                                 "title" => $line["title"],
4547                                                                 "unread" => $unread,
4548                                                                 "is_cat" => true,
4549                                                         );
4550                                                 array_push($feeds, $row);
4551                                         }
4552                                 }
4553                         }
4554
4555                         /* Real feeds */
4556
4557                         if ($limit) {
4558                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
4559                         } else {
4560                                 $limit_qpart = "";
4561                         }
4562
4563                         if ($cat_id == -4 || $cat_id == -3) {
4564                                 $result = db_query($link, "SELECT
4565                                         id, feed_url, cat_id, title, order_id, ".
4566                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4567                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
4568                                                 " ORDER BY cat_id, title " . $limit_qpart);
4569                         } else {
4570
4571                                 if ($cat_id)
4572                                         $cat_qpart = "cat_id = '$cat_id'";
4573                                 else
4574                                         $cat_qpart = "cat_id IS NULL";
4575
4576                                 $result = db_query($link, "SELECT
4577                                         id, feed_url, cat_id, title, order_id, ".
4578                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4579                                                 FROM ttrss_feeds WHERE
4580                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
4581                                                 " ORDER BY cat_id, title " . $limit_qpart);
4582                         }
4583
4584                         while ($line = db_fetch_assoc($result)) {
4585
4586                                 $unread = getFeedUnread($link, $line["id"]);
4587
4588                                 $has_icon = feed_has_icon($line['id']);
4589
4590                                 if ($unread || !$unread_only) {
4591
4592                                         $row = array(
4593                                                         "feed_url" => $line["feed_url"],
4594                                                         "title" => $line["title"],
4595                                                         "id" => (int)$line["id"],
4596                                                         "unread" => (int)$unread,
4597                                                         "has_icon" => $has_icon,
4598                                                         "cat_id" => (int)$line["cat_id"],
4599                                                         "last_updated" => strtotime($line["last_updated"]),
4600                                                         "order_id" => (int) $line["order_id"],
4601                                                 );
4602
4603                                         array_push($feeds, $row);
4604                                 }
4605                         }
4606
4607                 return $feeds;
4608         }
4609
4610         function api_get_headlines($link, $feed_id, $limit, $offset,
4611                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
4612                                 $include_attachments, $since_id,
4613                                 $search = "", $search_mode = "", $match_on = "", $include_nested = false) {
4614
4615                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
4616                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
4617                                 $order, $offset, 0, false, $since_id, $include_nested);
4618
4619                         $result = $qfh_ret[0];
4620                         $feed_title = $qfh_ret[1];
4621
4622                         $headlines = array();
4623
4624                         while ($line = db_fetch_assoc($result)) {
4625                                 $is_updated = ($line["last_read"] == "" &&
4626                                         ($line["unread"] != "t" && $line["unread"] != "1"));
4627
4628                                 $tags = explode(",", $line["tag_cache"]);
4629                                 $labels = json_decode($line["label_cache"], true);
4630
4631                                 //if (!$tags) $tags = get_article_tags($link, $line["id"]);
4632                                 //if (!$labels) $labels = get_article_labels($link, $line["id"]);
4633
4634                                 $headline_row = array(
4635                                                 "id" => (int)$line["id"],
4636                                                 "unread" => sql_bool_to_bool($line["unread"]),
4637                                                 "marked" => sql_bool_to_bool($line["marked"]),
4638                                                 "published" => sql_bool_to_bool($line["published"]),
4639                                                 "updated" => strtotime($line["updated"]),
4640                                                 "is_updated" => $is_updated,
4641                                                 "title" => $line["title"],
4642                                                 "link" => $line["link"],
4643                                                 "feed_id" => $line["feed_id"],
4644                                                 "tags" => $tags,
4645                                         );
4646
4647                                         if ($include_attachments)
4648                                                 $headline_row['attachments'] = get_article_enclosures($link,
4649                                                         $line['id']);
4650
4651                                 if ($show_excerpt) {
4652                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
4653                                         $headline_row["excerpt"] = $excerpt;
4654                                 }
4655
4656                                 if ($show_content) {
4657                                         $headline_row["content"] = $line["content_preview"];
4658                                 }
4659
4660                                 // unify label output to ease parsing
4661                                 if ($labels["no-labels"] == 1) $labels = array();
4662
4663                                 $headline_row["labels"] = $labels;
4664
4665                                 $headline_row["feed_title"] = $line["feed_title"];
4666
4667                                 $headline_row["comments_count"] = (int)$line["num_comments"];
4668                                 $headline_row["comments_link"] = $line["comments"];
4669
4670                                 $headline_row["always_display_attachments"] = sql_bool_to_bool($line["always_display_enclosures"]);
4671
4672                                 array_push($headlines, $headline_row);
4673                         }
4674
4675                         return $headlines;
4676         }
4677
4678         function generate_error_feed($link, $error) {
4679                 $reply = array();
4680
4681                 $reply['headlines']['id'] = -6;
4682                 $reply['headlines']['is_cat'] = false;
4683
4684                 $reply['headlines']['toolbar'] = '';
4685                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
4686
4687                 $reply['headlines-info'] = array("count" => 0,
4688                         "vgroup_last_feed" => '',
4689                         "unread" => 0,
4690                         "disable_cache" => true);
4691
4692                 return $reply;
4693         }
4694
4695
4696         function generate_dashboard_feed($link) {
4697                 $reply = array();
4698
4699                 $reply['headlines']['id'] = -5;
4700                 $reply['headlines']['is_cat'] = false;
4701
4702                 $reply['headlines']['toolbar'] = '';
4703                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
4704
4705                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
4706
4707                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
4708                         WHERE owner_uid = " . $_SESSION['uid']);
4709
4710                 $last_updated = db_fetch_result($result, 0, "last_updated");
4711                 $last_updated = make_local_datetime($link, $last_updated, false);
4712
4713                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
4714
4715                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
4716                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
4717
4718                 $num_errors = db_fetch_result($result, 0, "num_errors");
4719
4720                 if ($num_errors > 0) {
4721                         $reply['headlines']['content'] .= "<br/>";
4722                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
4723                                 __('Some feeds have update errors (click for details)')."</a>";
4724                 }
4725                 $reply['headlines']['content'] .= "</span></p>";
4726
4727                 $reply['headlines-info'] = array("count" => 0,
4728                         "vgroup_last_feed" => '',
4729                         "unread" => 0,
4730                         "disable_cache" => true);
4731
4732                 return $reply;
4733         }
4734
4735         function save_email_address($link, $email) {
4736                 // FIXME: implement persistent storage of emails
4737
4738                 if (!$_SESSION['stored_emails'])
4739                         $_SESSION['stored_emails'] = array();
4740
4741                 if (!in_array($email, $_SESSION['stored_emails']))
4742                         array_push($_SESSION['stored_emails'], $email);
4743         }
4744
4745         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4746                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4747
4748                 $sql_is_cat = bool_to_sql_bool($is_cat);
4749
4750                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4751                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4752                         AND owner_uid = " . $owner_uid);
4753
4754                 if (db_num_rows($result) == 1) {
4755                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4756
4757                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
4758                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
4759                                 AND owner_uid = " . $owner_uid);
4760
4761                         return $key;
4762
4763                 } else {
4764                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
4765                 }
4766         }
4767
4768         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4769
4770                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4771
4772                 $sql_is_cat = bool_to_sql_bool($is_cat);
4773
4774                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4775                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4776                         AND owner_uid = " . $owner_uid);
4777
4778                 if (db_num_rows($result) == 1) {
4779                         return db_fetch_result($result, 0, "access_key");
4780                 } else {
4781                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4782
4783                         $result = db_query($link, "INSERT INTO ttrss_access_keys
4784                                 (access_key, feed_id, is_cat, owner_uid)
4785                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
4786
4787                         return $key;
4788                 }
4789                 return false;
4790         }
4791
4792         function get_feeds_from_html($url, $content)
4793         {
4794                 $url     = fix_url($url);
4795                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
4796
4797                 libxml_use_internal_errors(true);
4798
4799                 $doc = new DOMDocument();
4800                 $doc->loadHTML($content);
4801                 $xpath = new DOMXPath($doc);
4802                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
4803                 $feedUrls = array();
4804                 foreach ($entries as $entry) {
4805                         if ($entry->hasAttribute('href')) {
4806                                 $title = $entry->getAttribute('title');
4807                                 if ($title == '') {
4808                                         $title = $entry->getAttribute('type');
4809                                 }
4810                                 $feedUrl = rewrite_relative_url(
4811                                         $baseUrl, $entry->getAttribute('href')
4812                                 );
4813                                 $feedUrls[$feedUrl] = $title;
4814                         }
4815                 }
4816                 return $feedUrls;
4817         }
4818
4819         function is_html($content) {
4820                 return preg_match("/<html|DOCTYPE html/i", $content) !== 0;
4821         }
4822
4823         function url_is_html($url, $login = false, $pass = false) {
4824                 return is_html(fetch_file_contents($url, false, $login, $pass));
4825         }
4826
4827         function print_label_select($link, $name, $value, $attributes = "") {
4828
4829                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
4830                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
4831
4832                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
4833                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
4834
4835                 while ($line = db_fetch_assoc($result)) {
4836
4837                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
4838
4839                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
4840                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
4841
4842                 }
4843
4844 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
4845
4846                 print "</select>";
4847
4848
4849         }
4850
4851         function format_article_enclosures($link, $id, $always_display_enclosures,
4852                                         $article_content) {
4853
4854                 $result = get_article_enclosures($link, $id);
4855                 $rv = '';
4856
4857                 if (count($result) > 0) {
4858
4859                         $entries_html = array();
4860                         $entries = array();
4861
4862                         foreach ($result as $line) {
4863
4864                                 $url = $line["content_url"];
4865                                 $ctype = $line["content_type"];
4866
4867                                 if (!$ctype) $ctype = __("unknown type");
4868
4869                                 $filename = substr($url, strrpos($url, "/")+1);
4870
4871 #                               $player = format_inline_player($link, $url, $ctype);
4872
4873 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4874 #                                       $filename . " (" . $ctype . ")" . "</a>";
4875
4876                                 $entry = "<div onclick=\"window.open('".htmlspecialchars($url)."')\"
4877                                         dojoType=\"dijit.MenuItem\">$filename ($ctype)</div>";
4878
4879                                 array_push($entries_html, $entry);
4880
4881                                 $entry = array();
4882
4883                                 $entry["type"] = $ctype;
4884                                 $entry["filename"] = $filename;
4885                                 $entry["url"] = $url;
4886
4887                                 array_push($entries, $entry);
4888                         }
4889
4890                         if (!get_pref($link, "STRIP_IMAGES")) {
4891                                 if ($always_display_enclosures ||
4892                                                         !preg_match("/<img/i", $article_content)) {
4893
4894                                         foreach ($entries as $entry) {
4895
4896                                                 if (preg_match("/image/", $entry["type"]) ||
4897                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
4898
4899                                                                 $rv .= "<p><img
4900                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
4901                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
4902
4903                                                 }
4904                                         }
4905                                 }
4906                         }
4907
4908                         $rv .= "<br/><div dojoType=\"dijit.form.DropDownButton\">".
4909                                 "<span>" . __('Attachments')."</span>";
4910                         $rv .= "<div dojoType=\"dijit.Menu\" style=\"display: none;\">";
4911
4912                         foreach ($entries_html as $entry) { $rv .= $entry; };
4913
4914                         $rv .= "</div></div>";
4915                 }
4916
4917                 return $rv;
4918         }
4919
4920         function getLastArticleId($link) {
4921                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
4922                         WHERE owner_uid = " . $_SESSION["uid"]);
4923
4924                 if (db_num_rows($result) == 1) {
4925                         return db_fetch_result($result, 0, "id");
4926                 } else {
4927                         return -1;
4928                 }
4929         }
4930
4931         function build_url($parts) {
4932                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
4933         }
4934
4935         /**
4936          * Converts a (possibly) relative URL to a absolute one.
4937          *
4938          * @param string $url     Base URL (i.e. from where the document is)
4939          * @param string $rel_url Possibly relative URL in the document
4940          *
4941          * @return string Absolute URL
4942          */
4943         function rewrite_relative_url($url, $rel_url) {
4944                 if (strpos($rel_url, "magnet:") === 0) {
4945                         return $rel_url;
4946                 } else if (strpos($rel_url, "://") !== false) {
4947                         return $rel_url;
4948                 } else if (strpos($rel_url, "//") === 0) {
4949                         # protocol-relative URL (rare but they exist)
4950                         return $rel_url;
4951                 } else if (strpos($rel_url, "/") === 0)
4952                 {
4953                         $parts = parse_url($url);
4954                         $parts['path'] = $rel_url;
4955
4956                         return build_url($parts);
4957
4958                 } else {
4959                         $parts = parse_url($url);
4960                         if (!isset($parts['path'])) {
4961                                 $parts['path'] = '/';
4962                         }
4963                         $dir = $parts['path'];
4964                         if (substr($dir, -1) !== '/') {
4965                                 $dir = dirname($parts['path']);
4966                                 $dir !== '/' && $dir .= '/';
4967                         }
4968                         $parts['path'] = $dir . $rel_url;
4969
4970                         return build_url($parts);
4971                 }
4972         }
4973
4974         function sphinx_search($query, $offset = 0, $limit = 30) {
4975                 require_once 'lib/sphinxapi.php';
4976
4977                 $sphinxClient = new SphinxClient();
4978
4979                 $sphinxClient->SetServer('localhost', 9312);
4980                 $sphinxClient->SetConnectTimeout(1);
4981
4982                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
4983                         'feed_title' => 20));
4984
4985                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
4986                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
4987                 $sphinxClient->SetLimits($offset, $limit, 1000);
4988                 $sphinxClient->SetArrayResult(false);
4989                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
4990
4991                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
4992
4993                 $ids = array();
4994
4995                 if (is_array($result['matches'])) {
4996                         foreach (array_keys($result['matches']) as $int_id) {
4997                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
4998                                 array_push($ids, $ref_id);
4999                         }
5000                 }
5001
5002                 return $ids;
5003         }
5004
5005         function cleanup_tags($link, $days = 14, $limit = 1000) {
5006
5007                 if (DB_TYPE == "pgsql") {
5008                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
5009                 } else if (DB_TYPE == "mysql") {
5010                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
5011                 }
5012
5013                 $tags_deleted = 0;
5014
5015                 while ($limit > 0) {
5016                         $limit_part = 500;
5017
5018                         $query = "SELECT ttrss_tags.id AS id
5019                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
5020                                 WHERE post_int_id = int_id AND $interval_query AND
5021                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
5022
5023                         $result = db_query($link, $query);
5024
5025                         $ids = array();
5026
5027                         while ($line = db_fetch_assoc($result)) {
5028                                 array_push($ids, $line['id']);
5029                         }
5030
5031                         if (count($ids) > 0) {
5032                                 $ids = join(",", $ids);
5033                                 print ".";
5034
5035                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
5036                                 $tags_deleted += db_affected_rows($link, $tmp_result);
5037                         } else {
5038                                 break;
5039                         }
5040
5041                         $limit -= $limit_part;
5042                 }
5043
5044                 print "\n";
5045
5046                 return $tags_deleted;
5047         }
5048
5049         function print_user_stylesheet($link) {
5050                 $value = get_pref($link, 'USER_STYLESHEET');
5051
5052                 if ($value) {
5053                         print "<style type=\"text/css\">";
5054                         print str_replace("<br/>", "\n", $value);
5055                         print "</style>";
5056                 }
5057
5058         }
5059
5060 /*      function rewrite_urls($line) {
5061                 global $url_regex;
5062
5063                 $urls = null;
5064
5065                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
5066                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
5067
5068                 return $result;
5069         } */
5070
5071         function rewrite_urls($html) {
5072                 libxml_use_internal_errors(true);
5073
5074                 $charset_hack = '<head>
5075                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
5076                 </head>';
5077
5078                 $doc = new DOMDocument();
5079                 $doc->loadHTML($charset_hack . $html);
5080                 $xpath = new DOMXPath($doc);
5081
5082                 $entries = $xpath->query('//*/text()');
5083
5084                 foreach ($entries as $entry) {
5085                         if (strstr($entry->wholeText, "://") !== false) {
5086                                 $text = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
5087                                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $entry->wholeText);
5088
5089                                 if ($text != $entry->wholeText) {
5090                                         $cdoc = new DOMDocument();
5091                                         $cdoc->loadHTML($charset_hack . $text);
5092
5093
5094                                         foreach ($cdoc->childNodes as $cnode) {
5095                                                 $cnode = $doc->importNode($cnode, true);
5096
5097                                                 if ($cnode) {
5098                                                         $entry->parentNode->insertBefore($cnode);
5099                                                 }
5100                                         }
5101
5102                                         $entry->parentNode->removeChild($entry);
5103
5104                                 }
5105                         }
5106                 }
5107
5108                 $node = $doc->getElementsByTagName('body')->item(0);
5109
5110                 // http://tt-rss.org/forum/viewtopic.php?f=1&t=970
5111                 if ($node)
5112                         return $doc->saveXML($node, LIBXML_NOEMPTYTAG);
5113                 else
5114                         return $html;
5115         }
5116
5117         function filter_to_sql($link, $filter, $owner_uid) {
5118                 $query = array();
5119
5120                 if (DB_TYPE == "pgsql")
5121                         $reg_qpart = "~";
5122                 else
5123                         $reg_qpart = "REGEXP";
5124
5125                 foreach ($filter["rules"] AS $rule) {
5126                         $regexp_valid = preg_match('/' . $rule['reg_exp'] . '/',
5127                                 $rule['reg_exp']) !== FALSE;
5128
5129                         if ($regexp_valid) {
5130
5131                                 $rule['reg_exp'] = db_escape_string($rule['reg_exp']);
5132
5133                                 switch ($rule["type"]) {
5134                                         case "title":
5135                                                 $qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
5136                                                         $rule['reg_exp'] . "')";
5137                                                 break;
5138                                         case "content":
5139                                                 $qpart = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
5140                                                         $rule['reg_exp'] . "')";
5141                                                 break;
5142                                         case "both":
5143                                                 $qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
5144                                                         $rule['reg_exp'] . "') OR LOWER(" .
5145                                                         "ttrss_entries.content) $reg_qpart LOWER('" . $rule['reg_exp'] . "')";
5146                                                 break;
5147                                         case "tag":
5148                                                 $qpart = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
5149                                                         $rule['reg_exp'] . "')";
5150                                                 break;
5151                                         case "link":
5152                                                 $qpart = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
5153                                                         $rule['reg_exp'] . "')";
5154                                                 break;
5155                                         case "author":
5156                                                 $qpart = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
5157                                                         $rule['reg_exp'] . "')";
5158                                                 break;
5159                                 }
5160
5161                                 if (isset($rule["feed_id"]) && $rule["feed_id"] > 0) {
5162                                         $qpart .= " AND feed_id = " . db_escape_string($rule["feed_id"]);
5163                                 }
5164
5165                                 if (isset($rule["cat_id"])) {
5166
5167                                         if ($rule["cat_id"] > 0) {
5168                                                 $children = getChildCategories($link, $rule["cat_id"], $owner_uid);
5169                                                 array_push($children, $rule["cat_id"]);
5170
5171                                                 $children = join(",", $children);
5172
5173                                                 $cat_qpart = "cat_id IN ($children)";
5174                                         } else {
5175                                                 $cat_qpart = "cat_id IS NULL";
5176                                         }
5177
5178                                         $qpart .= " AND $cat_qpart";
5179                                 }
5180
5181                                 array_push($query, "($qpart)");
5182
5183                         }
5184                 }
5185
5186                 if (count($query) > 0) {
5187                         return "(" . join($filter["match_any_rule"] ? "OR" : "AND", $query) . ")";
5188                 } else {
5189                         return "(false)";
5190                 }
5191         }
5192
5193         // Status codes:
5194         // -1  - never connected
5195         // 0   - no data received
5196         // 1   - data received successfully
5197         // 2   - did not receive valid data
5198         // >10 - server error, code + 10 (e.g. 16 means server error 6)
5199
5200         function get_linked_feeds($link, $instance_id = false) {
5201                 if ($instance_id)
5202                         $instance_qpart = "id = '$instance_id' AND ";
5203                 else
5204                         $instance_qpart = "";
5205
5206                 if (DB_TYPE == "pgsql") {
5207                         $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'";
5208                 } else {
5209                         $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)";
5210                 }
5211
5212                 $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances
5213                         WHERE $instance_qpart $date_qpart ORDER BY last_connected");
5214
5215                 while ($line = db_fetch_assoc($result)) {
5216                         $id = $line['id'];
5217
5218                         _debug("Updating: " . $line['access_url'] . " ($id)");
5219
5220                         $fetch_url = $line['access_url'] . '/public.php?op=fbexport';
5221                         $post_query = 'key=' . $line['access_key'];
5222
5223                         $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
5224
5225                         // try doing it the old way
5226                         if (!$feeds) {
5227                                 $fetch_url = $line['access_url'] . '/backend.php?op=fbexport';
5228                                 $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
5229                         }
5230
5231                         if ($feeds) {
5232                                 $feeds = json_decode($feeds, true);
5233
5234                                 if ($feeds) {
5235                                         if ($feeds['error']) {
5236                                                 $status = $feeds['error']['code'] + 10;
5237                                         } else {
5238                                                 $status = 1;
5239
5240                                                 if (count($feeds['feeds']) > 0) {
5241
5242                                                         db_query($link, "DELETE FROM ttrss_linked_feeds
5243                                                                 WHERE instance_id = '$id'");
5244
5245                                                         foreach ($feeds['feeds'] as $feed) {
5246                                                                 $feed_url = db_escape_string($feed['feed_url']);
5247                                                                 $title = db_escape_string($feed['title']);
5248                                                                 $subscribers = db_escape_string($feed['subscribers']);
5249                                                                 $site_url = db_escape_string($feed['site_url']);
5250
5251                                                                 db_query($link, "INSERT INTO ttrss_linked_feeds
5252                                                                         (feed_url, site_url, title, subscribers, instance_id, created, updated)
5253                                                                 VALUES
5254                                                                         ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())");
5255                                                         }
5256                                                 } else {
5257                                                         // received 0 feeds, this might indicate that
5258                                                         // the instance on the other hand is rebuilding feedbrowser cache
5259                                                         // we will try again later
5260
5261                                                         // TODO: maybe perform expiration based on updated here?
5262                                                 }
5263
5264                                                 _debug("Processed " . count($feeds['feeds']) . " feeds.");
5265                                         }
5266                                 } else {
5267                                         $status = 2;
5268                                 }
5269
5270                         } else {
5271                                 $status = 0;
5272                         }
5273
5274                         _debug("Status: $status");
5275
5276                         db_query($link, "UPDATE ttrss_linked_instances SET
5277                                 last_status_out = '$status', last_connected = NOW() WHERE id = '$id'");
5278
5279                 }
5280         }
5281
5282         function make_feed_browser($link, $search, $limit, $mode = 1) {
5283
5284                 $owner_uid = $_SESSION["uid"];
5285                 $rv = '';
5286
5287                 if ($search) {
5288                         $search_qpart = "AND (UPPER(feed_url) LIKE UPPER('%$search%') OR
5289                                                 UPPER(title) LIKE UPPER('%$search%'))";
5290                 } else {
5291                         $search_qpart = "";
5292                 }
5293
5294                 if ($mode == 1) {
5295                         /* $result = db_query($link, "SELECT feed_url, subscribers FROM
5296                          ttrss_feedbrowser_cache WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5297                         WHERE tf.feed_url = ttrss_feedbrowser_cache.feed_url
5298                         AND owner_uid = '$owner_uid') $search_qpart
5299                         ORDER BY subscribers DESC LIMIT $limit"); */
5300
5301                         $result = db_query($link, "SELECT feed_url, site_url, title, SUM(subscribers) AS subscribers FROM
5302                                                 (SELECT feed_url, site_url, title, subscribers FROM ttrss_feedbrowser_cache UNION ALL
5303                                                         SELECT feed_url, site_url, title, subscribers FROM ttrss_linked_feeds) AS qqq
5304                                                 WHERE
5305                                                         (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5306                                                                 WHERE tf.feed_url = qqq.feed_url
5307                                                                         AND owner_uid = '$owner_uid') $search_qpart
5308                                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT $limit");
5309
5310                 } else if ($mode == 2) {
5311                         $result = db_query($link, "SELECT *,
5312                                                 (SELECT COUNT(*) FROM ttrss_user_entries WHERE
5313                                                         orig_feed_id = ttrss_archived_feeds.id) AS articles_archived
5314                                                 FROM
5315                                                         ttrss_archived_feeds
5316                                                 WHERE
5317                                                 (SELECT COUNT(*) FROM ttrss_feeds
5318                                                         WHERE ttrss_feeds.feed_url = ttrss_archived_feeds.feed_url AND
5319                                                                 owner_uid = '$owner_uid') = 0   AND
5320                                                 owner_uid = '$owner_uid' $search_qpart
5321                                                 ORDER BY id DESC LIMIT $limit");
5322                 }
5323
5324                 $feedctr = 0;
5325
5326                 while ($line = db_fetch_assoc($result)) {
5327
5328                         if ($mode == 1) {
5329
5330                                 $feed_url = htmlspecialchars($line["feed_url"]);
5331                                 $site_url = htmlspecialchars($line["site_url"]);
5332                                 $subscribers = $line["subscribers"];
5333
5334                                 $check_box = "<input onclick='toggleSelectListRow2(this)'
5335                                                         dojoType=\"dijit.form.CheckBox\"
5336                                                         type=\"checkbox\" \">";
5337
5338                                 $class = ($feedctr % 2) ? "even" : "odd";
5339
5340                                 $site_url = "<a target=\"_blank\"
5341                                                         href=\"$site_url\">
5342                                                         <span class=\"fb_feedTitle\">".
5343                                 htmlspecialchars($line["title"])."</span></a>";
5344
5345                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5346                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5347                                                         style='vertical-align : middle'></a>";
5348
5349                                 $rv .= "<li>$check_box $feed_url $site_url".
5350                                                         "&nbsp;<span class='subscribers'>($subscribers)</span></li>";
5351
5352                         } else if ($mode == 2) {
5353                                 $feed_url = htmlspecialchars($line["feed_url"]);
5354                                 $site_url = htmlspecialchars($line["site_url"]);
5355                                 $title = htmlspecialchars($line["title"]);
5356
5357                                 $check_box = "<input onclick='toggleSelectListRow2(this)' dojoType=\"dijit.form.CheckBox\"
5358                                                         type=\"checkbox\">";
5359
5360                                 $class = ($feedctr % 2) ? "even" : "odd";
5361
5362                                 if ($line['articles_archived'] > 0) {
5363                                         $archived = sprintf(__("%d archived articles"), $line['articles_archived']);
5364                                         $archived = "&nbsp;<span class='subscribers'>($archived)</span>";
5365                                 } else {
5366                                         $archived = '';
5367                                 }
5368
5369                                 $site_url = "<a target=\"_blank\"
5370                                                         href=\"$site_url\">
5371                                                         <span class=\"fb_feedTitle\">".
5372                                 htmlspecialchars($line["title"])."</span></a>";
5373
5374                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5375                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5376                                                         style='vertical-align : middle'></a>";
5377
5378
5379                                 $rv .= "<li id=\"FBROW-".$line["id"]."\">".
5380                                                         "$check_box $feed_url $site_url $archived</li>";
5381                         }
5382
5383                         ++$feedctr;
5384                 }
5385
5386                 if ($feedctr == 0) {
5387                         $rv .= "<li style=\"text-align : center\"><p>".__('No feeds found.')."</p></li>";
5388                 }
5389
5390                 return $rv;
5391         }
5392
5393         if (!function_exists('gzdecode')) {
5394                 function gzdecode($string) { // no support for 2nd argument
5395                         return file_get_contents('compress.zlib://data:who/cares;base64,'.
5396                                 base64_encode($string));
5397                 }
5398         }
5399
5400         function perform_data_import($link, $filename, $owner_uid) {
5401
5402                 $num_imported = 0;
5403                 $num_processed = 0;
5404                 $num_feeds_created = 0;
5405
5406                 $doc = @DOMDocument::load($filename);
5407
5408                 if (!$doc) {
5409                         $contents = file_get_contents($filename);
5410
5411                         if ($contents) {
5412                                 $data = @gzuncompress($contents);
5413                         }
5414
5415                         if (!$data) {
5416                                 $data = @gzdecode($contents);
5417                         }
5418
5419                         if ($data)
5420                                 $doc = DOMDocument::loadXML($data);
5421                 }
5422
5423                 if ($doc) {
5424
5425                         $xpath = new DOMXpath($doc);
5426
5427                         $container = $doc->firstChild;
5428
5429                         if ($container && $container->hasAttribute('schema-version')) {
5430                                 $schema_version = $container->getAttribute('schema-version');
5431
5432                                 if ($schema_version != SCHEMA_VERSION) {
5433                                         print "<p>" .__("Could not import: incorrect schema version.") . "</p>";
5434                                         return;
5435                                 }
5436
5437                         } else {
5438                                 print "<p>" . __("Could not import: unrecognized document format.") . "</p>";
5439                                 return;
5440                         }
5441
5442                         $articles = $xpath->query("//article");
5443
5444                         foreach ($articles as $article_node) {
5445                                 if ($article_node->childNodes) {
5446
5447                                         $ref_id = 0;
5448
5449                                         $article = array();
5450
5451                                         foreach ($article_node->childNodes as $child) {
5452                                                 if ($child->nodeName != 'label_cache')
5453                                                         $article[$child->nodeName] = db_escape_string($child->nodeValue);
5454                                                 else
5455                                                         $article[$child->nodeName] = $child->nodeValue;
5456                                         }
5457
5458                                         //print_r($article);
5459
5460                                         if ($article['guid']) {
5461
5462                                                 ++$num_processed;
5463
5464                                                 //db_query($link, "BEGIN");
5465
5466                                                 //print 'GUID:' . $article['guid'] . "\n";
5467
5468                                                 $result = db_query($link, "SELECT id FROM ttrss_entries
5469                                                         WHERE guid = '".$article['guid']."'");
5470
5471                                                 if (db_num_rows($result) == 0) {
5472
5473                                                         $result = db_query($link,
5474                                                                 "INSERT INTO ttrss_entries
5475                                                                         (title,
5476                                                                         guid,
5477                                                                         link,
5478                                                                         updated,
5479                                                                         content,
5480                                                                         content_hash,
5481                                                                         no_orig_date,
5482                                                                         date_updated,
5483                                                                         date_entered,
5484                                                                         comments,
5485                                                                         num_comments,
5486                                                                         author)
5487                                                                 VALUES
5488                                                                         ('".$article['title']."',
5489                                                                         '".$article['guid']."',
5490                                                                         '".$article['link']."',
5491                                                                         '".$article['updated']."',
5492                                                                         '".$article['content']."',
5493                                                                         '".sha1($article['content'])."',
5494                                                                         false,
5495                                                                         NOW(),
5496                                                                         NOW(),
5497                                                                         '',
5498                                                                         '0',
5499                                                                         '')");
5500
5501                                                         $result = db_query($link, "SELECT id FROM ttrss_entries
5502                                                                 WHERE guid = '".$article['guid']."'");
5503
5504                                                         if (db_num_rows($result) != 0) {
5505                                                                 $ref_id = db_fetch_result($result, 0, "id");
5506                                                         }
5507
5508                                                 } else {
5509                                                         $ref_id = db_fetch_result($result, 0, "id");
5510                                                 }
5511
5512                                                 //print "Got ref ID: $ref_id\n";
5513
5514                                                 if ($ref_id) {
5515
5516                                                         $feed_url = $article['feed_url'];
5517                                                         $feed_title = $article['feed_title'];
5518
5519                                                         $feed = 'NULL';
5520
5521                                                         if ($feed_url && $feed_title) {
5522                                                                 $result = db_query($link, "SELECT id FROM ttrss_feeds
5523                                                                         WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
5524
5525                                                                 if (db_num_rows($result) != 0) {
5526                                                                         $feed = db_fetch_result($result, 0, "id");
5527                                                                 } else {
5528                                                                         // try autocreating feed in Uncategorized...
5529
5530                                                                         $result = db_query($link, "INSERT INTO ttrss_feeds (owner_uid,
5531                                                                                 feed_url, title) VALUES ($owner_uid, '$feed_url', '$feed_title')");
5532
5533                                                                         $result = db_query($link, "SELECT id FROM ttrss_feeds
5534                                                                                 WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
5535
5536                                                                         if (db_num_rows($result) != 0) {
5537                                                                                 ++$num_feeds_created;
5538
5539                                                                                 $feed = db_fetch_result($result, 0, "id");
5540                                                                         }
5541                                                                 }
5542                                                         }
5543
5544                                                         if ($feed != 'NULL')
5545                                                                 $feed_qpart = "feed_id = $feed";
5546                                                         else
5547                                                                 $feed_qpart = "feed_id IS NULL";
5548
5549                                                         //print "$ref_id / $feed / " . $article['title'] . "\n";
5550
5551                                                         $result = db_query($link, "SELECT int_id FROM ttrss_user_entries
5552                                                                 WHERE ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND $feed_qpart");
5553
5554                                                         if (db_num_rows($result) == 0) {
5555
5556                                                                 $marked = bool_to_sql_bool(sql_bool_to_bool($article['marked']));
5557                                                                 $published = bool_to_sql_bool(sql_bool_to_bool($article['published']));
5558                                                                 $score = (int) $article['score'];
5559
5560                                                                 $tag_cache = $article['tag_cache'];
5561                                                                 $label_cache = db_escape_string($article['label_cache']);
5562                                                                 $note = $article['note'];
5563
5564                                                                 //print "Importing " . $article['title'] . "<br/>";
5565
5566                                                                 ++$num_imported;
5567
5568                                                                 $result = db_query($link,
5569                                                                         "INSERT INTO ttrss_user_entries
5570                                                                         (ref_id, owner_uid, feed_id, unread, last_read, marked,
5571                                                                                 published, score, tag_cache, label_cache, uuid, note)
5572                                                                         VALUES ($ref_id, $owner_uid, $feed, false,
5573                                                                                 NULL, $marked, $published, $score, '$tag_cache',
5574                                                                                         '$label_cache', '', '$note')");
5575
5576                                                                 $label_cache = json_decode($label_cache, true);
5577
5578                                                                 if (is_array($label_cache) && $label_cache["no-labels"] != 1) {
5579                                                                         foreach ($label_cache as $label) {
5580
5581                                                                                 label_create($link, $label[1],
5582                                                                                         $label[2], $label[3], $owner_uid);
5583
5584                                                                                 label_add_article($link, $ref_id, $label[1], $owner_uid);
5585
5586                                                                         }
5587                                                                 }
5588
5589                                                                 //db_query($link, "COMMIT");
5590                                                         }
5591                                                 }
5592                                         }
5593                                 }
5594                         }
5595
5596                         print "<p>" .
5597                                 T_sprintf("Finished: %d articles processed, %d imported, %d feeds created.",
5598                                         $num_processed, $num_imported, $num_feeds_created) .
5599                                         "</p>";
5600
5601                 } else {
5602
5603                         print "<p>" . __("Could not load XML document.") . "</p>";
5604
5605                 }
5606         }
5607
5608         function get_random_bytes($length) {
5609                 if (function_exists('openssl_random_pseudo_bytes')) {
5610                         return openssl_random_pseudo_bytes($length);
5611                 } else {
5612                         $output = "";
5613
5614                         for ($i = 0; $i < $length; $i++)
5615                                 $output .= chr(mt_rand(0, 255));
5616
5617                         return $output;
5618                 }
5619         }
5620
5621         function read_stdin() {
5622                 $fp = fopen("php://stdin", "r");
5623
5624                 if ($fp) {
5625                         $line = trim(fgets($fp));
5626                         fclose($fp);
5627                         return $line;
5628                 }
5629
5630                 return null;
5631         }
5632
5633         function tmpdirname($path, $prefix) {
5634                 // Use PHP's tmpfile function to create a temporary
5635                 // directory name. Delete the file and keep the name.
5636                 $tempname = tempnam($path,$prefix);
5637                 if (!$tempname)
5638                         return false;
5639
5640                 if (!unlink($tempname))
5641                         return false;
5642
5643        return $tempname;
5644         }
5645
5646         function getFeedCategory($link, $feed) {
5647                 $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
5648                         WHERE id = '$feed'");
5649
5650                 if (db_num_rows($result) > 0) {
5651                         return db_fetch_result($result, 0, "cat_id");
5652                 } else {
5653                         return false;
5654                 }
5655
5656         }
5657
5658         function create_published_article($link, $title, $url, $content, $owner_uid) {
5659                 $guid = sha1($url);
5660                 $content_hash = sha1($content);
5661
5662                 $rc = false;
5663
5664                 if (!$title) $title = $url;
5665                 if (!$title && !$url) return false;
5666
5667                 if (filter_var($url, FILTER_VALIDATE_URL) === FALSE) return false;
5668
5669                 db_query($link, "BEGIN");
5670
5671                 // only check for our user data here, others might have shared this with different content etc
5672                 $result = db_query($link, "SELECT id FROM ttrss_entries, ttrss_user_entries WHERE
5673                         link = '$url' AND ref_id = id AND owner_uid = '$owner_uid' LIMIT 1");
5674
5675                 if (db_num_rows($result) != 0) {
5676                         $ref_id = db_fetch_result($result, 0, "id");
5677
5678                         $result = db_query($link, "SELECT int_id FROM ttrss_user_entries WHERE
5679                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' LIMIT 1");
5680
5681                         if (db_num_rows($result) != 0) {
5682                                 $int_id = db_fetch_result($result, 0, "int_id");
5683
5684                                 db_query($link, "UPDATE ttrss_entries SET
5685                                         content = '$content', content_hash = '$content_hash' WHERE id = '$ref_id'");
5686
5687                                 db_query($link, "UPDATE ttrss_user_entries SET published = true WHERE
5688                                                 int_id = '$int_id' AND owner_uid = '$owner_uid'");
5689                         } else {
5690
5691                                 db_query($link, "INSERT INTO ttrss_user_entries
5692                                         (ref_id, uuid, feed_id, orig_feed_id, owner_uid, published, tag_cache, label_cache, last_read, note, unread)
5693                                         VALUES
5694                                         ('$ref_id', '', NULL, NULL, $owner_uid, true, '', '', NOW(), '', false)");
5695                         }
5696
5697                         $rc = true;
5698
5699                 } else {
5700                         $result = db_query($link, "INSERT INTO ttrss_entries
5701                                 (title, guid, link, updated, content, content_hash, date_entered, date_updated)
5702                                 VALUES
5703                                 ('$title', '$guid', '$url', NOW(), '$content', '$content_hash', NOW(), NOW())");
5704
5705                         $result = db_query($link, "SELECT id FROM ttrss_entries WHERE guid = '$guid'");
5706
5707                         if (db_num_rows($result) != 0) {
5708                                 $ref_id = db_fetch_result($result, 0, "id");
5709
5710                                 db_query($link, "INSERT INTO ttrss_user_entries
5711                                         (ref_id, uuid, feed_id, orig_feed_id, owner_uid, published, tag_cache, label_cache, last_read, note, unread)
5712                                         VALUES
5713                                         ('$ref_id', '', NULL, NULL, $owner_uid, true, '', '', NOW(), '', false)");
5714
5715                                 $rc = true;
5716                         }
5717                 }
5718
5719                 db_query($link, "COMMIT");
5720
5721                 return $rc;
5722         }
5723
5724 ?>