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