include/functions.php

   1 <?php
   2         date_default_timezone_set('UTC');
   3         if (defined('E_DEPRECATED')) {
   4                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
   5         } else {
   6                 error_reporting(E_ALL & ~E_NOTICE);
   7         }
   8
   9         require_once 'config.php';
  10
  11         if (DB_TYPE == "pgsql") {
  12                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  13         } else {
  14                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  15         }
  16
  17         define('THEME_VERSION_REQUIRED', 1.1);
  18
  19         /**
  20          * Return available translations names.
  21          *
  22          * @access public
  23          * @return array A array of available translations.
  24          */
  25         function get_translations() {
  26                 $tr = array(
  27                                         "auto"  => "Detect automatically",
  28                                         "ca_CA" => "Català",
  29                                         "en_US" => "English",
  30                                         "es_ES" => "Español",
  31                                         "de_DE" => "Deutsch",
  32                                         "fr_FR" => "Français",
  33                                         "hu_HU" => "Magyar (Hungarian)",
  34                                         "it_IT" => "Italiano",
  35                                         "ja_JP" => "日本語 (Japanese)",
  36                                         "nb_NO" => "Norwegian bokmål",
  37                                         "ru_RU" => "Русский",
  38                                         "pt_BR" => "Portuguese/Brazil",
  39                                         "zh_CN" => "Simplified Chinese");
  40
  41                 return $tr;
  42         }
  43
  44         require_once "lib/accept-to-gettext.php";
  45         require_once "lib/gettext/gettext.inc";
  46
  47         function startup_gettext() {
  48
  49                 # Get locale from Accept-Language header
  50                 $lang = al2gt(array_keys(get_translations()), "text/html");
  51
  52                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
  53                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
  54                 }
  55
  56                 if ($_COOKIE["ttrss_lang"] && $_COOKIE["ttrss_lang"] != "auto") {
  57                         $lang = $_COOKIE["ttrss_lang"];
  58                 }
  59
  60                 /* In login action of mobile version */
  61                 if ($_POST["language"] && defined('MOBILE_VERSION')) {
  62                         $lang = $_POST["language"];
  63                         $_COOKIE["ttrss_lang"] = $lang;
  64                 }
  65
  66                 if ($lang) {
  67                         if (defined('LC_MESSAGES')) {
  68                                 _setlocale(LC_MESSAGES, $lang);
  69                         } else if (defined('LC_ALL')) {
  70                                 _setlocale(LC_ALL, $lang);
  71                         }
  72
  73                         if (defined('MOBILE_VERSION')) {
  74                                 _bindtextdomain("messages", "../locale");
  75                         } else {
  76                                 _bindtextdomain("messages", "locale");
  77                         }
  78
  79                         _textdomain("messages");
  80                         _bind_textdomain_codeset("messages", "UTF-8");
  81                 }
  82         }
  83
  84         startup_gettext();
  85
  86         if (defined('MEMCACHE_SERVER')) {
  87                 $memcache = new Memcache;
  88                 $memcache->connect(MEMCACHE_SERVER, 11211);
  89         }
  90
  91         require_once 'db-prefs.php';
  92         require_once 'version.php';
  93
  94         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
  95
  96         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
  97         define('MAGPIE_USER_AGENT', SELF_USER_AGENT);
  98
  99         ini_set('user_agent', SELF_USER_AGENT);
 100
 101         require_once 'lib/pubsubhubbub/publisher.php';
 102
 103         $purifier = false;
 104
 105         $tz_offset = -1;
 106         $utc_tz = new DateTimeZone('UTC');
 107         $schema_version = false;
 108
 109         /**
 110          * Print a timestamped debug message.
 111          *
 112          * @param string $msg The debug message.
 113          * @return void
 114          */
 115         function _debug($msg) {
 116                 $ts = strftime("%H:%M:%S", time());
 117                 if (function_exists('posix_getpid')) {
 118                         $ts = "$ts/" . posix_getpid();
 119                 }
 120                 print "[$ts] $msg\n";
 121         } // function _debug
 122
 123         /**
 124          * Purge a feed old posts.
 125          *
 126          * @param mixed $link A database connection.
 127          * @param mixed $feed_id The id of the purged feed.
 128          * @param mixed $purge_interval Olderness of purged posts.
 129          * @param boolean $debug Set to True to enable the debug. False by default.
 130          * @access public
 131          * @return void
 132          */
 133         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 134
 135                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
 136
 137                 $rows = -1;
 138
 139                 $result = db_query($link,
 140                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 141
 142                 $owner_uid = false;
 143
 144                 if (db_num_rows($result) == 1) {
 145                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 146                 }
 147
 148                 if ($purge_interval == -1 || !$purge_interval) {
 149                         if ($owner_uid) {
 150                                 ccache_update($link, $feed_id, $owner_uid);
 151                         }
 152                         return;
 153                 }
 154
 155                 if (!$owner_uid) return;
 156
 157                 if (FORCE_ARTICLE_PURGE == 0) {
 158                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
 159                                 $owner_uid, false);
 160                 } else {
 161                         $purge_unread = true;
 162                         $purge_interval = FORCE_ARTICLE_PURGE;
 163                 }
 164
 165                 if (!$purge_unread) $query_limit = " unread = false AND ";
 166
 167                 if (DB_TYPE == "pgsql") {
 168                         $pg_version = get_pgsql_version($link);
 169
 170                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 171
 172                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 173                                         ttrss_entries.id = ref_id AND
 174                                         marked = false AND
 175                                         feed_id = '$feed_id' AND
 176                                         $query_limit
 177                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 178
 179                         } else {
 180
 181                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
 182                                         USING ttrss_entries
 183                                         WHERE ttrss_entries.id = ref_id AND
 184                                         marked = false AND
 185                                         feed_id = '$feed_id' AND
 186                                         $query_limit
 187                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 188                         }
 189
 190                         $rows = pg_affected_rows($result);
 191
 192                 } else {
 193
 194 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 195                                 marked = false AND feed_id = '$feed_id' AND
 196                                 (SELECT date_updated FROM ttrss_entries WHERE
 197                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 198
 199                         $result = db_query($link, "DELETE FROM ttrss_user_entries
 200                                 USING ttrss_user_entries, ttrss_entries
 201                                 WHERE ttrss_entries.id = ref_id AND
 202                                 marked = false AND
 203                                 feed_id = '$feed_id' AND
 204                                 $query_limit
 205                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 206
 207                         $rows = mysql_affected_rows($link);
 208
 209                 }
 210
 211                 ccache_update($link, $feed_id, $owner_uid);
 212
 213                 if ($debug) {
 214                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 215                 }
 216         } // function purge_feed
 217
 218         function feed_purge_interval($link, $feed_id) {
 219
 220                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
 221                         WHERE id = '$feed_id'");
 222
 223                 if (db_num_rows($result) == 1) {
 224                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 225                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 226
 227                         if ($purge_interval == 0) $purge_interval = get_pref($link,
 228                                 'PURGE_OLD_DAYS', $owner_uid);
 229
 230                         return $purge_interval;
 231
 232                 } else {
 233                         return -1;
 234                 }
 235         }
 236
 237         function purge_orphans($link, $do_output = false) {
 238
 239                 // purge orphaned posts in main content table
 240                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
 241                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 242
 243                 if ($do_output) {
 244                         $rows = db_affected_rows($link, $result);
 245                         _debug("Purged $rows orphaned posts.");
 246                 }
 247         }
 248
 249         function get_feed_update_interval($link, $feed_id) {
 250                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
 251                         ttrss_feeds WHERE id = '$feed_id'");
 252
 253                 if (db_num_rows($result) == 1) {
 254                         $update_interval = db_fetch_result($result, 0, "update_interval");
 255                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 256
 257                         if ($update_interval != 0) {
 258                                 return $update_interval;
 259                         } else {
 260                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 261                         }
 262
 263                 } else {
 264                         return -1;
 265                 }
 266         }
 267
 268         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false) {
 269                 $login = urlencode($login);
 270                 $pass = urlencode($pass);
 271
 272                 if (function_exists('curl_init') && !ini_get("open_basedir")) {
 273                         $ch = curl_init($url);
 274
 275                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
 276                         curl_setopt($ch, CURLOPT_TIMEOUT, 45);
 277                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 278                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 279                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 280                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 281                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 282                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 283                         curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
 284                         curl_setopt($ch, CURLOPT_ENCODING , "gzip");
 285
 286                         if ($post_query) {
 287                                 curl_setopt($ch, CURLOPT_POST, true);
 288                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 289                         }
 290
 291                         if ($login && $pass)
 292                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 293
 294                         $contents = @curl_exec($ch);
 295
 296                         if ($contents === false) {
 297                                 curl_close($ch);
 298                                 return false;
 299                         }
 300
 301                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 302                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 303                         curl_close($ch);
 304
 305                         if ($http_code != 200 || $type && strpos($content_type, "$type") === false) {
 306                                 return false;
 307                         }
 308
 309                         return $contents;
 310                 } else {
 311                         if ($login && $pass ){
 312                                 $url_parts = array();
 313
 314                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 315
 316                                 if ($url_parts[1] && $url_parts[2]) {
 317                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 318                                 }
 319                         }
 320
 321                         return @file_get_contents($url);
 322                 }
 323
 324         }
 325
 326         /**
 327          * Try to determine the favicon URL for a feed.
 328          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 329          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 330          *
 331          * @param string $url A feed or page URL
 332          * @access public
 333          * @return mixed The favicon URL, or false if none was found.
 334          */
 335         function get_favicon_url($url) {
 336
 337                 $favicon_url = false;
 338
 339                 if ($html = @fetch_file_contents($url)) {
 340
 341                         libxml_use_internal_errors(true);
 342
 343                         $doc = new DOMDocument();
 344                         $doc->loadHTML($html);
 345                         $xpath = new DOMXPath($doc);
 346
 347                         $base = $xpath->query('/html/head/base');
 348                         foreach ($base as $b) {
 349                                 $url = $b->getAttribute("href");
 350                                 break;
 351                         }
 352
 353                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 354                         if (count($entries) > 0) {
 355                                 foreach ($entries as $entry) {
 356                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 357                                         break;
 358                                 }
 359                         }
 360                 }
 361
 362                 if (!$favicon_url)
 363                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 364
 365                 return $favicon_url;
 366         } // function get_favicon_url
 367
 368         function check_feed_favicon($site_url, $feed, $link) {
 369 #               print "FAVICON [$site_url]: $favicon_url\n";
 370
 371                 $icon_file = ICONS_DIR . "/$feed.ico";
 372
 373                 if (!file_exists($icon_file)) {
 374                         $favicon_url = get_favicon_url($site_url);
 375
 376                         if ($favicon_url) {
 377                                 $contents = fetch_file_contents($favicon_url, "image");
 378
 379                                 if ($contents) {
 380                                         $fp = @fopen($icon_file, "w");
 381
 382                                         if ($fp) {
 383                                                 fwrite($fp, $contents);
 384                                                 fclose($fp);
 385                                                 chmod($icon_file, 0644);
 386                                         }
 387                                 }
 388                         }
 389                 }
 390         }
 391
 392         function print_select($id, $default, $values, $attributes = "") {
 393                 print "<select name=\"$id\" id=\"$id\" $attributes>";
 394                 foreach ($values as $v) {
 395                         if ($v == $default)
 396                                 $sel = "selected=\"1\"";
 397                          else
 398                                 $sel = "";
 399
 400                         print "<option value=\"$v\" $sel>$v</option>";
 401                 }
 402                 print "</select>";
 403         }
 404
 405         function print_select_hash($id, $default, $values, $attributes = "") {
 406                 print "<select name=\"$id\" id='$id' $attributes>";
 407                 foreach (array_keys($values) as $v) {
 408                         if ($v == $default)
 409                                 $sel = 'selected="selected"';
 410                          else
 411                                 $sel = "";
 412
 413                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
 414                 }
 415
 416                 print "</select>";
 417         }
 418
 419         function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
 420                 $matches = array();
 421
 422                 if ($filters["title"]) {
 423                         foreach ($filters["title"] as $filter) {
 424                                 $reg_exp = $filter["reg_exp"];
 425                                 $inverse = $filter["inverse"];
 426                                 if ((!$inverse && @preg_match("/$reg_exp/i", $title)) ||
 427                                                 ($inverse && !@preg_match("/$reg_exp/i", $title))) {
 428
 429                                         array_push($matches, array($filter["action"], $filter["action_param"]));
 430                                 }
 431                         }
 432                 }
 433
 434                 if ($filters["content"]) {
 435                         foreach ($filters["content"] as $filter) {
 436                                 $reg_exp = $filter["reg_exp"];
 437                                 $inverse = $filter["inverse"];
 438
 439                                 if ((!$inverse && @preg_match("/$reg_exp/i", $content)) ||
 440                                                 ($inverse && !@preg_match("/$reg_exp/i", $content))) {
 441
 442                                         array_push($matches, array($filter["action"], $filter["action_param"]));
 443                                 }
 444                         }
 445                 }
 446
 447                 if ($filters["both"]) {
 448                         foreach ($filters["both"] as $filter) {
 449                                 $reg_exp = $filter["reg_exp"];
 450                                 $inverse = $filter["inverse"];
 451
 452                                 if ($inverse) {
 453                                         if (!@preg_match("/$reg_exp/i", $title) && !preg_match("/$reg_exp/i", $content)) {
 454                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
 455                                         }
 456                                 } else {
 457                                         if (@preg_match("/$reg_exp/i", $title) || preg_match("/$reg_exp/i", $content)) {
 458                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
 459                                         }
 460                                 }
 461                         }
 462                 }
 463
 464                 if ($filters["link"]) {
 465                         $reg_exp = $filter["reg_exp"];
 466                         foreach ($filters["link"] as $filter) {
 467                                 $reg_exp = $filter["reg_exp"];
 468                                 $inverse = $filter["inverse"];
 469
 470                                 if ((!$inverse && @preg_match("/$reg_exp/i", $link)) ||
 471                                                 ($inverse && !@preg_match("/$reg_exp/i", $link))) {
 472
 473                                         array_push($matches, array($filter["action"], $filter["action_param"]));
 474                                 }
 475                         }
 476                 }
 477
 478                 if ($filters["date"]) {
 479                         $reg_exp = $filter["reg_exp"];
 480                         foreach ($filters["date"] as $filter) {
 481                                 $date_modifier = $filter["filter_param"];
 482                                 $inverse = $filter["inverse"];
 483                                 $check_timestamp = strtotime($filter["reg_exp"]);
 484
 485                                 # no-op when timestamp doesn't parse to prevent misfires
 486
 487                                 if ($check_timestamp) {
 488                                         $match_ok = false;
 489
 490                                         if ($date_modifier == "before" && $timestamp < $check_timestamp ||
 491                                                 $date_modifier == "after" && $timestamp > $check_timestamp) {
 492                                                         $match_ok = true;
 493                                         }
 494
 495                                         if ($inverse) $match_ok = !$match_ok;
 496
 497                                         if ($match_ok) {
 498                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
 499                                         }
 500                                 }
 501                         }
 502                 }
 503
 504                 if ($filters["author"]) {
 505                         foreach ($filters["author"] as $filter) {
 506                                 $reg_exp = $filter["reg_exp"];
 507                                 $inverse = $filter["inverse"];
 508                                 if ((!$inverse && @preg_match("/$reg_exp/i", $author)) ||
 509                                                 ($inverse && !@preg_match("/$reg_exp/i", $author))) {
 510
 511                                         array_push($matches, array($filter["action"], $filter["action_param"]));
 512                                 }
 513                         }
 514                 }
 515
 516                 if ($filters["tag"]) {
 517
 518                         $tag_string = join(",", $tags);
 519
 520                         foreach ($filters["tag"] as $filter) {
 521                                 $reg_exp = $filter["reg_exp"];
 522                                 $inverse = $filter["inverse"];
 523
 524                                 if ((!$inverse && @preg_match("/$reg_exp/i", $tag_string)) ||
 525                                                 ($inverse && !@preg_match("/$reg_exp/i", $tag_string))) {
 526
 527                                         array_push($matches, array($filter["action"], $filter["action_param"]));
 528                                 }
 529                         }
 530                 }
 531
 532
 533                 return $matches;
 534         }
 535
 536         function find_article_filter($filters, $filter_name) {
 537                 foreach ($filters as $f) {
 538                         if ($f[0] == $filter_name) {
 539                                 return $f;
 540                         };
 541                 }
 542                 return false;
 543         }
 544
 545         function calculate_article_score($filters) {
 546                 $score = 0;
 547
 548                 foreach ($filters as $f) {
 549                         if ($f[0] == "score") {
 550                                 $score += $f[1];
 551                         };
 552                 }
 553                 return $score;
 554         }
 555
 556         function assign_article_to_labels($link, $id, $filters, $owner_uid) {
 557                 foreach ($filters as $f) {
 558                         if ($f[0] == "label") {
 559                                 label_add_article($link, $id, $f[1], $owner_uid);
 560                         };
 561                 }
 562         }
 563
 564         function getmicrotime() {
 565                 list($usec, $sec) = explode(" ",microtime());
 566                 return ((float)$usec + (float)$sec);
 567         }
 568
 569         function print_radio($id, $default, $true_is, $values, $attributes = "") {
 570                 foreach ($values as $v) {
 571
 572                         if ($v == $default)
 573                                 $sel = "checked";
 574                          else
 575                                 $sel = "";
 576
 577                         if ($v == $true_is) {
 578                                 $sel .= " value=\"1\"";
 579                         } else {
 580                                 $sel .= " value=\"0\"";
 581                         }
 582
 583                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
 584                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 585
 586                 }
 587         }
 588
 589         function initialize_user_prefs($link, $uid, $profile = false) {
 590
 591                 $uid = db_escape_string($uid);
 592
 593                 if (!$profile) {
 594                         $profile = "NULL";
 595                         $profile_qpart = "AND profile IS NULL";
 596                 } else {
 597                         $profile_qpart = "AND profile = '$profile'";
 598                 }
 599
 600                 if (get_schema_version($link) < 63) $profile_qpart = "";
 601
 602                 db_query($link, "BEGIN");
 603
 604                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
 605
 606                 $u_result = db_query($link, "SELECT pref_name
 607                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
 608
 609                 $active_prefs = array();
 610
 611                 while ($line = db_fetch_assoc($u_result)) {
 612                         array_push($active_prefs, $line["pref_name"]);
 613                 }
 614
 615                 while ($line = db_fetch_assoc($result)) {
 616                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 617 //                              print "adding " . $line["pref_name"] . "<br>";
 618
 619                                 if (get_schema_version($link) < 63) {
 620                                         db_query($link, "INSERT INTO ttrss_user_prefs
 621                                                 (owner_uid,pref_name,value) VALUES
 622                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 623
 624                                 } else {
 625                                         db_query($link, "INSERT INTO ttrss_user_prefs
 626                                                 (owner_uid,pref_name,value, profile) VALUES
 627                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
 628                                 }
 629
 630                         }
 631                 }
 632
 633                 db_query($link, "COMMIT");
 634
 635         }
 636
 637         function get_ssl_certificate_id() {
 638                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
 639                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
 640                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
 641                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
 642                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
 643                 }
 644                 return "";
 645         }
 646
 647         function get_login_by_ssl_certificate($link) {
 648
 649                 $cert_serial = db_escape_string(get_ssl_certificate_id());
 650
 651                 if ($cert_serial) {
 652                         $result = db_query($link, "SELECT login FROM ttrss_user_prefs, ttrss_users
 653                                 WHERE pref_name = 'SSL_CERT_SERIAL' AND value = '$cert_serial' AND
 654                                 owner_uid = ttrss_users.id");
 655
 656                         if (db_num_rows($result) != 0) {
 657                                 return db_escape_string(db_fetch_result($result, 0, "login"));
 658                         }
 659                 }
 660
 661                 return "";
 662         }
 663
 664         function get_remote_user($link) {
 665
 666                 if (defined('ALLOW_REMOTE_USER_AUTH') && ALLOW_REMOTE_USER_AUTH) {
 667                         return db_escape_string($_SERVER["REMOTE_USER"]);
 668                 }
 669
 670                 return db_escape_string(get_login_by_ssl_certificate($link));
 671         }
 672
 673         function get_remote_fakepass($link) {
 674                 if (get_remote_user($link))
 675                         return "******";
 676                 else
 677                         return "";
 678         }
 679
 680         function authenticate_user($link, $login, $password, $force_auth = false) {
 681
 682                 if (!SINGLE_USER_MODE) {
 683
 684                         $pwd_hash1 = encrypt_password($password);
 685                         $pwd_hash2 = encrypt_password($password, $login);
 686                         $login = db_escape_string($login);
 687
 688                         $remote_user = get_remote_user($link);
 689
 690                         if ($remote_user && $remote_user == $login && $login != "admin") {
 691
 692                                 $login = $remote_user;
 693
 694                                 $query = "SELECT id,login,access_level,pwd_hash
 695                     FROM ttrss_users WHERE
 696                                         login = '$login'";
 697
 698                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER
 699                                                 && $_SERVER["REMOTE_USER"]) {
 700                                         $result = db_query($link, $query);
 701
 702                                         // First login ?
 703                                         if (db_num_rows($result) == 0) {
 704                                                 $query2 = "INSERT INTO ttrss_users
 705                                                                 (login,access_level,last_login,created)
 706                                                                 VALUES ('$login', 0, null, NOW())";
 707                                                 db_query($link, $query2);
 708                                         }
 709                                 }
 710
 711                         } else {
 712                                 $query = "SELECT id,login,access_level,pwd_hash
 713                     FROM ttrss_users WHERE
 714                                         login = '$login' AND (pwd_hash = '$pwd_hash1' OR
 715                                                 pwd_hash = '$pwd_hash2')";
 716                         }
 717
 718                         $result = db_query($link, $query);
 719
 720                         if (db_num_rows($result) == 1) {
 721                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
 722                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
 723                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 724
 725                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 726                                         $_SESSION["uid"]);
 727
 728
 729                                 // LemonLDAP can send user informations via HTTP HEADER
 730                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER){
 731                                         // update user name
 732                                         $fullname = $_SERVER['HTTP_USER_NAME'] ? $_SERVER['HTTP_USER_NAME'] : $_SERVER['AUTHENTICATE_CN'];
 733                                         if ($fullname){
 734                                                 $fullname = db_escape_string($fullname);
 735                                                 db_query($link, "UPDATE ttrss_users SET full_name = '$fullname' WHERE id = " .
 736                                                         $_SESSION["uid"]);
 737                                         }
 738                                         // update user mail
 739                                         $email = $_SERVER['HTTP_USER_MAIL'] ? $_SERVER['HTTP_USER_MAIL'] : $_SERVER['AUTHENTICATE_MAIL'];
 740                                         if ($email){
 741                                                 $email = db_escape_string($email);
 742                                                 db_query($link, "UPDATE ttrss_users SET email = '$email' WHERE id = " .
 743                                                         $_SESSION["uid"]);
 744                                         }
 745                                 }
 746
 747                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 748                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
 749
 750                                 $_SESSION["last_version_check"] = time();
 751
 752                                 initialize_user_prefs($link, $_SESSION["uid"]);
 753
 754                                 return true;
 755                         }
 756
 757                         return false;
 758
 759                 } else {
 760
 761                         $_SESSION["uid"] = 1;
 762                         $_SESSION["name"] = "admin";
 763
 764                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 765
 766                         initialize_user_prefs($link, $_SESSION["uid"]);
 767
 768                         return true;
 769                 }
 770         }
 771
 772         function make_password($length = 8) {
 773
 774                 $password = "";
 775                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
 776
 777         $i = 0;
 778
 779                 while ($i < $length) {
 780                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 781
 782                         if (!strstr($password, $char)) {
 783                                 $password .= $char;
 784                                 $i++;
 785                         }
 786                 }
 787                 return $password;
 788         }
 789
 790         // this is called after user is created to initialize default feeds, labels
 791         // or whatever else
 792
 793         // user preferences are checked on every login, not here
 794
 795         function initialize_user($link, $uid) {
 796
 797                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 798                         values ('$uid', 'Tiny Tiny RSS: New Releases',
 799                         'http://tt-rss.org/releases.rss')");
 800
 801                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 802                         values ('$uid', 'Tiny Tiny RSS: Forum',
 803                                 'http://tt-rss.org/forum/rss.php')");
 804         }
 805
 806         function logout_user() {
 807                 session_destroy();
 808                 if (isset($_COOKIE[session_name()])) {
 809                    setcookie(session_name(), '', time()-42000, '/');
 810                 }
 811         }
 812
 813         function validate_session($link) {
 814                 if (SINGLE_USER_MODE) return true;
 815
 816                 $check_ip = $_SESSION['ip_address'];
 817
 818                 switch (SESSION_CHECK_ADDRESS) {
 819                 case 0:
 820                         $check_ip = '';
 821                         break;
 822                 case 1:
 823                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
 824                         break;
 825                 case 2:
 826                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
 827                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
 828                         break;
 829                 };
 830
 831                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) {
 832                         $_SESSION["login_error_msg"] =
 833                                 __("Session failed to validate (incorrect IP)");
 834                         return false;
 835                 }
 836
 837                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
 838                         return false;
 839
 840                 if ($_SESSION["uid"]) {
 841
 842                         $result = db_query($link,
 843                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
 844
 845                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
 846
 847                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
 848                                 return false;
 849                         }
 850                 }
 851
 852 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
 853
 854                         //print_r($_SESSION);
 855
 856                         if (time() > $_SESSION["cookie_lifetime"]) {
 857                                 return false;
 858                         }
 859                 } */
 860
 861                 return true;
 862         }
 863
 864         function login_sequence($link, $mobile = false) {
 865                 $_SESSION["prefs_cache"] = array();
 866
 867                 if (!SINGLE_USER_MODE) {
 868
 869                         $login_action = $_POST["login_action"];
 870
 871                         # try to authenticate user if called from login form
 872                         if ($login_action == "do_login") {
 873                                 $login = db_escape_string($_POST["login"]);
 874                                 $password = $_POST["password"];
 875                                 $remember_me = $_POST["remember_me"];
 876
 877                                 if (authenticate_user($link, $login, $password)) {
 878                                         $_POST["password"] = "";
 879
 880                                         $_SESSION["language"] = $_POST["language"];
 881                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 882                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
 883
 884                                         if ($_POST["profile"]) {
 885
 886                                                 $profile = db_escape_string($_POST["profile"]);
 887
 888                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
 889                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
 890
 891                                                 if (db_num_rows($result) != 0) {
 892                                                         $_SESSION["profile"] = $profile;
 893                                                         $_SESSION["prefs_cache"] = array();
 894                                                 }
 895                                         }
 896
 897                                         if ($_REQUEST['return']) {
 898                                                 header("Location: " . $_REQUEST['return']);
 899                                         } else {
 900                                                 header("Location: " . $_SERVER["REQUEST_URI"]);
 901                                         }
 902
 903                                         exit;
 904
 905                                         return;
 906                                 } else {
 907                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
 908                                 }
 909                         }
 910
 911                         if (!$_SESSION["uid"] || !validate_session($link)) {
 912
 913                                 if (get_remote_user($link) && AUTO_LOGIN) {
 914                                     authenticate_user($link, get_remote_user($link), null);
 915                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 916                                 } else {
 917                                     render_login_form($link, $mobile);
 918                                     //header("Location: login.php");
 919                                     exit;
 920                                 }
 921                         } else {
 922                                 /* bump login timestamp */
 923                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 924                                         $_SESSION["uid"]);
 925
 926                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
 927                                         setcookie("ttrss_lang", $_SESSION["language"],
 928                                                 time() + SESSION_COOKIE_LIFETIME);
 929                                 }
 930
 931                                 // try to remove possible duplicates from feed counter cache
 932 //                              ccache_cleanup($link, $_SESSION["uid"]);
 933                         }
 934
 935                 } else {
 936                         return authenticate_user($link, "admin", null);
 937                 }
 938         }
 939
 940         function truncate_string($str, $max_len, $suffix = '&hellip;') {
 941                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
 942                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
 943                 } else {
 944                         return $str;
 945                 }
 946         }
 947
 948         function theme_image($link, $filename) {
 949                 if ($link) {
 950                         $theme_path = get_user_theme_path($link);
 951
 952                         if ($theme_path && is_file($theme_path.$filename)) {
 953                                 return $theme_path.$filename;
 954                         } else {
 955                                 return $filename;
 956                         }
 957                 } else {
 958                         return $filename;
 959                 }
 960         }
 961
 962         function get_user_theme($link) {
 963
 964                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
 965                         $theme_name = get_pref($link, "_THEME_ID");
 966                         if (is_dir("themes/$theme_name")) {
 967                                 return $theme_name;
 968                         } else {
 969                                 return '';
 970                         }
 971                 } else {
 972                         return '';
 973                 }
 974
 975         }
 976
 977         function get_user_theme_path($link) {
 978                 $theme_path = '';
 979
 980                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
 981                         $theme_name = get_pref($link, "_THEME_ID");
 982
 983                         if ($theme_name && is_dir("themes/$theme_name")) {
 984                                 $theme_path = "themes/$theme_name/";
 985                         } else {
 986                                 $theme_name = '';
 987                         }
 988                 } else {
 989                         $theme_path = '';
 990                 }
 991
 992                 if ($theme_path) {
 993                         if (is_file("$theme_path/theme.ini")) {
 994                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
 995                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
 996                                         return $theme_path;
 997                                 }
 998                         }
 999                 }
1000                 return '';
1001         }
1002
1003         function get_user_theme_options($link) {
1004                 $t = get_user_theme_path($link);
1005
1006                 if ($t) {
1007                         if (is_file("$t/theme.ini")) {
1008                                 $ini = parse_ini_file("$t/theme.ini", true);
1009                                 if ($ini['theme']['version']) {
1010                                         return $ini['theme']['options'];
1011                                 }
1012                         }
1013                 }
1014                 return '';
1015         }
1016
1017         function print_theme_includes($link) {
1018
1019                 $t = get_user_theme_path($link);
1020                 $time = time();
1021
1022                 if ($t) {
1023                         print "<link rel=\"stylesheet\" type=\"text/css\"
1024                                 href=\"$t/theme.css?$time \">";
1025                         if (file_exists("$t/theme.js")) {
1026                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
1027                                         </script>";
1028                         }
1029                 }
1030         }
1031
1032         function get_all_themes() {
1033                 $themes = glob("themes/*");
1034
1035                 asort($themes);
1036
1037                 $rv = array();
1038
1039                 foreach ($themes as $t) {
1040                         if (is_file("$t/theme.ini")) {
1041                                 $ini = parse_ini_file("$t/theme.ini", true);
1042                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
1043                                                         !$ini['theme']['disabled']) {
1044                                         $entry = array();
1045                                         $entry["path"] = $t;
1046                                         $entry["base"] = basename($t);
1047                                         $entry["name"] = $ini['theme']['name'];
1048                                         $entry["version"] = $ini['theme']['version'];
1049                                         $entry["author"] = $ini['theme']['author'];
1050                                         $entry["options"] = $ini['theme']['options'];
1051                                         array_push($rv, $entry);
1052                                 }
1053                         }
1054                 }
1055
1056                 return $rv;
1057         }
1058
1059         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
1060
1061                 try {
1062                         $source_tz = new DateTimeZone($source_tz);
1063                 } catch (Exception $e) {
1064                         $source_tz = new DateTimeZone('UTC');
1065                 }
1066
1067                 try {
1068                         $dest_tz = new DateTimeZone($dest_tz);
1069                 } catch (Exception $e) {
1070                         $dest_tz = new DateTimeZone('UTC');
1071                 }
1072
1073                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
1074                 return $dt->format('U') + $dest_tz->getOffset($dt);
1075         }
1076
1077         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
1078                                         $no_smart_dt = false) {
1079
1080                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1081                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
1082
1083                 global $utc_tz;
1084                 global $tz_offset;
1085
1086                 # We store date in UTC internally
1087                 $dt = new DateTime($timestamp, $utc_tz);
1088
1089                 if ($tz_offset == -1) {
1090
1091                         $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
1092
1093                         try {
1094                                 $user_tz = new DateTimeZone($user_tz_string);
1095                         } catch (Exception $e) {
1096                                 $user_tz = $utc_tz;
1097                         }
1098
1099                         $tz_offset = $user_tz->getOffset($dt);
1100                 }
1101
1102                 $user_timestamp = $dt->format('U') + $tz_offset;
1103
1104                 if (!$no_smart_dt) {
1105                         return smart_date_time($link, $user_timestamp,
1106                                 $tz_offset, $owner_uid);
1107                 } else {
1108                         if ($long)
1109                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
1110                         else
1111                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
1112
1113                         return date($format, $user_timestamp);
1114                 }
1115         }
1116
1117         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
1118                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1119
1120                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
1121                         return date("G:i", $timestamp);
1122                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
1123                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
1124                         return date($format, $timestamp);
1125                 } else {
1126                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
1127                         return date($format, $timestamp);
1128                 }
1129         }
1130
1131         function sql_bool_to_bool($s) {
1132                 if ($s == "t" || $s == "1" || $s == "true") {
1133                         return true;
1134                 } else {
1135                         return false;
1136                 }
1137         }
1138
1139         function bool_to_sql_bool($s) {
1140                 if ($s) {
1141                         return "true";
1142                 } else {
1143                         return "false";
1144                 }
1145         }
1146
1147         // Session caching removed due to causing wrong redirects to upgrade
1148         // script when get_schema_version() is called on an obsolete session
1149         // created on a previous schema version.
1150         function get_schema_version($link, $nocache = false) {
1151                 global $schema_version;
1152
1153                 if (!$schema_version) {
1154                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
1155                         $version = db_fetch_result($result, 0, "schema_version");
1156                         $schema_version = $version;
1157                         return $version;
1158                 } else {
1159                         return $schema_version;
1160                 }
1161         }
1162
1163         function sanity_check($link) {
1164                 require_once 'errors.php';
1165
1166                 $error_code = 0;
1167                 $schema_version = get_schema_version($link, true);
1168
1169                 if ($schema_version != SCHEMA_VERSION) {
1170                         $error_code = 5;
1171                 }
1172
1173                 if (DB_TYPE == "mysql") {
1174                         $result = db_query($link, "SELECT true", false);
1175                         if (db_num_rows($result) != 1) {
1176                                 $error_code = 10;
1177                         }
1178                 }
1179
1180                 if (db_escape_string("testTEST") != "testTEST") {
1181                         $error_code = 12;
1182                 }
1183
1184                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1185         }
1186
1187         function file_is_locked($filename) {
1188                 if (function_exists('flock')) {
1189                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1190                         if ($fp) {
1191                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1192                                         flock($fp, LOCK_UN);
1193                                         fclose($fp);
1194                                         return false;
1195                                 }
1196                                 fclose($fp);
1197                                 return true;
1198                         } else {
1199                                 return false;
1200                         }
1201                 }
1202                 return true; // consider the file always locked and skip the test
1203         }
1204
1205         function make_lockfile($filename) {
1206                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1207
1208                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1209                         if (function_exists('posix_getpid')) {
1210                                 fwrite($fp, posix_getpid() . "\n");
1211                         }
1212                         return $fp;
1213                 } else {
1214                         return false;
1215                 }
1216         }
1217
1218         function make_stampfile($filename) {
1219                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1220
1221                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1222                         fwrite($fp, time() . "\n");
1223                         flock($fp, LOCK_UN);
1224                         fclose($fp);
1225                         return true;
1226                 } else {
1227                         return false;
1228                 }
1229         }
1230
1231         function sql_random_function() {
1232                 if (DB_TYPE == "mysql") {
1233                         return "RAND()";
1234                 } else {
1235                         return "RANDOM()";
1236                 }
1237         }
1238
1239         function catchup_feed($link, $feed, $cat_view, $owner_uid = false) {
1240
1241                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1242
1243                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1244
1245                         if (is_numeric($feed)) {
1246                                 if ($cat_view) {
1247
1248                                         if ($feed >= 0) {
1249
1250                                                 if ($feed > 0) {
1251                                                         $cat_qpart = "cat_id = '$feed'";
1252                                                 } else {
1253                                                         $cat_qpart = "cat_id IS NULL";
1254                                                 }
1255
1256                                                 $tmp_result = db_query($link, "SELECT id
1257                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = $owner_uid");
1258
1259                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
1260
1261                                                         $tmp_feed = $tmp_line["id"];
1262
1263                                                         db_query($link, "UPDATE ttrss_user_entries
1264                                                                 SET unread = false,last_read = NOW()
1265                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = $owner_uid");
1266                                                 }
1267                                         } else if ($feed == -2) {
1268
1269                                                 db_query($link, "UPDATE ttrss_user_entries
1270                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1271                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
1272                                                         AND unread = true AND owner_uid = $owner_uid");
1273                                         }
1274
1275                                 } else if ($feed > 0) {
1276
1277                                         db_query($link, "UPDATE ttrss_user_entries
1278                                                         SET unread = false,last_read = NOW()
1279                                                         WHERE feed_id = '$feed' AND owner_uid = $owner_uid");
1280
1281                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
1282
1283                                         if ($feed == -1) {
1284                                                 db_query($link, "UPDATE ttrss_user_entries
1285                                                         SET unread = false,last_read = NOW()
1286                                                         WHERE marked = true AND owner_uid = $owner_uid");
1287                                         }
1288
1289                                         if ($feed == -2) {
1290                                                 db_query($link, "UPDATE ttrss_user_entries
1291                                                         SET unread = false,last_read = NOW()
1292                                                         WHERE published = true AND owner_uid = $owner_uid");
1293                                         }
1294
1295                                         if ($feed == -3) {
1296
1297                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
1298
1299                                                 if (DB_TYPE == "pgsql") {
1300                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
1301                                                 } else {
1302                                                         $match_part = "updated > DATE_SUB(NOW(),
1303                                                                 INTERVAL $intl HOUR) ";
1304                                                 }
1305
1306                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
1307                                                         ttrss_user_entries WHERE $match_part AND
1308                                                         unread = true AND
1309                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
1310                                                         owner_uid = $owner_uid");
1311
1312                                                 $affected_ids = array();
1313
1314                                                 while ($line = db_fetch_assoc($result)) {
1315                                                         array_push($affected_ids, $line["id"]);
1316                                                 }
1317
1318                                                 catchupArticlesById($link, $affected_ids, 0);
1319                                         }
1320
1321                                         if ($feed == -4) {
1322                                                 db_query($link, "UPDATE ttrss_user_entries
1323                                                         SET unread = false,last_read = NOW()
1324                                                         WHERE owner_uid = $owner_uid");
1325                                         }
1326
1327                                 } else if ($feed < -10) { // label
1328
1329                                         $label_id = -$feed - 11;
1330
1331                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
1332                                                 SET unread = false, last_read = NOW()
1333                                                         WHERE label_id = '$label_id' AND unread = true
1334                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
1335
1336                                 }
1337
1338                                 ccache_update($link, $feed, $owner_uid, $cat_view);
1339
1340                         } else { // tag
1341                                 db_query($link, "BEGIN");
1342
1343                                 $tag_name = db_escape_string($feed);
1344
1345                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
1346                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
1347
1348                                 while ($line = db_fetch_assoc($result)) {
1349                                         db_query($link, "UPDATE ttrss_user_entries SET
1350                                                 unread = false, last_read = NOW()
1351                                                 WHERE int_id = " . $line["post_int_id"]);
1352                                 }
1353                                 db_query($link, "COMMIT");
1354                         }
1355         }
1356
1357         function getAllCounters($link, $omode = "flc", $active_feed = false) {
1358
1359                 if (!$omode) $omode = "flc";
1360
1361                 $data = getGlobalCounters($link);
1362
1363                 $data = array_merge($data, getVirtCounters($link));
1364
1365                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
1366                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
1367                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
1368                 if (strchr($omode, "c")) $data = array_merge($data, getCategoryCounters($link));
1369
1370                 return $data;
1371         }
1372
1373         function getCategoryTitle($link, $cat_id) {
1374
1375                 if ($cat_id == -1) {
1376                         return __("Special");
1377                 } else if ($cat_id == -2) {
1378                         return __("Labels");
1379                 } else {
1380
1381                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
1382                                 id = '$cat_id'");
1383
1384                         if (db_num_rows($result) == 1) {
1385                                 return db_fetch_result($result, 0, "title");
1386                         } else {
1387                                 return "Uncategorized";
1388                         }
1389                 }
1390         }
1391
1392
1393         function getCategoryCounters($link) {
1394                 $ret_arr = array();
1395
1396                 /* Labels category */
1397
1398                 $cv = array("id" => -2, "kind" => "cat",
1399                         "counter" => getCategoryUnread($link, -2));
1400
1401                 array_push($ret_arr, $cv);
1402
1403                 $age_qpart = getMaxAgeSubquery();
1404
1405                 $result = db_query($link, "SELECT id AS cat_id, value AS unread
1406                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
1407                         WHERE ttrss_cat_counters_cache.feed_id = id AND
1408                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1409
1410                 while ($line = db_fetch_assoc($result)) {
1411                         $line["cat_id"] = (int) $line["cat_id"];
1412
1413                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
1414                                 "counter" => $line["unread"]);
1415
1416                         array_push($ret_arr, $cv);
1417                 }
1418
1419                 /* Special case: NULL category doesn't actually exist in the DB */
1420
1421                 $cv = array("id" => 0, "kind" => "cat",
1422                         "counter" => ccache_find($link, 0, $_SESSION["uid"], true));
1423
1424                 array_push($ret_arr, $cv);
1425
1426                 return $ret_arr;
1427         }
1428
1429         function getCategoryUnread($link, $cat, $owner_uid = false) {
1430
1431                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1432
1433                 if ($cat >= 0) {
1434
1435                         if ($cat != 0) {
1436                                 $cat_query = "cat_id = '$cat'";
1437                         } else {
1438                                 $cat_query = "cat_id IS NULL";
1439                         }
1440
1441                         $age_qpart = getMaxAgeSubquery();
1442
1443                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
1444                                         AND owner_uid = " . $owner_uid);
1445
1446                         $cat_feeds = array();
1447                         while ($line = db_fetch_assoc($result)) {
1448                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
1449                         }
1450
1451                         if (count($cat_feeds) == 0) return 0;
1452
1453                         $match_part = implode(" OR ", $cat_feeds);
1454
1455                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
1456                                 FROM ttrss_user_entries,ttrss_entries
1457                                 WHERE   unread = true AND ($match_part) AND id = ref_id
1458                                 AND $age_qpart AND owner_uid = " . $owner_uid);
1459
1460                         $unread = 0;
1461
1462                         # this needs to be rewritten
1463                         while ($line = db_fetch_assoc($result)) {
1464                                 $unread += $line["unread"];
1465                         }
1466
1467                         return $unread;
1468                 } else if ($cat == -1) {
1469                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
1470                 } else if ($cat == -2) {
1471
1472                         $result = db_query($link, "
1473                                 SELECT COUNT(unread) AS unread FROM
1474                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
1475                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
1476                                         ttrss_labels2.owner_uid = '$owner_uid'
1477                                         AND unread = true AND feed_id = ttrss_feeds.id
1478                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
1479
1480                         $unread = db_fetch_result($result, 0, "unread");
1481
1482                         return $unread;
1483
1484                 }
1485         }
1486
1487         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
1488                 if (DB_TYPE == "pgsql") {
1489                         return "ttrss_entries.date_updated >
1490                                 NOW() - INTERVAL '$days days'";
1491                 } else {
1492                         return "ttrss_entries.date_updated >
1493                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
1494                 }
1495         }
1496
1497         function getFeedUnread($link, $feed, $is_cat = false) {
1498                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
1499         }
1500
1501         function getLabelUnread($link, $label_id, $owner_uid = false) {
1502                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1503
1504                 $result = db_query($link, "
1505                         SELECT COUNT(unread) AS unread FROM
1506                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
1507                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
1508                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
1509                                 AND unread = true AND feed_id = ttrss_feeds.id
1510                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
1511
1512                 if (db_num_rows($result) != 0) {
1513                         return db_fetch_result($result, 0, "unread");
1514                 } else {
1515                         return 0;
1516                 }
1517         }
1518
1519         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
1520                 $owner_uid = false) {
1521
1522                 $n_feed = (int) $feed;
1523
1524                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1525
1526                 if ($unread_only) {
1527                         $unread_qpart = "unread = true";
1528                 } else {
1529                         $unread_qpart = "true";
1530                 }
1531
1532                 $age_qpart = getMaxAgeSubquery();
1533
1534                 if ($is_cat) {
1535                         return getCategoryUnread($link, $n_feed, $owner_uid);
1536                 } if ($feed != "0" && $n_feed == 0) {
1537
1538                         $feed = db_escape_string($feed);
1539
1540                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
1541                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1542                                         AND ref_id = id AND $age_qpart
1543                                         AND $unread_qpart)) AS count FROM ttrss_tags
1544                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1545                         return db_fetch_result($result, 0, "count");
1546
1547                 } else if ($n_feed == -1) {
1548                         $match_part = "marked = true";
1549                 } else if ($n_feed == -2) {
1550                         $match_part = "published = true";
1551                 } else if ($n_feed == -3) {
1552                         $match_part = "unread = true AND score >= 0";
1553
1554                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
1555
1556                         if (DB_TYPE == "pgsql") {
1557                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
1558                         } else {
1559                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1560                         }
1561                 } else if ($n_feed == -4) {
1562                         $match_part = "true";
1563                 } else if ($n_feed >= 0) {
1564
1565                         if ($n_feed != 0) {
1566                                 $match_part = "feed_id = '$n_feed'";
1567                         } else {
1568                                 $match_part = "feed_id IS NULL";
1569                         }
1570
1571                 } else if ($feed < -10) {
1572
1573                         $label_id = -$feed - 11;
1574
1575                         return getLabelUnread($link, $label_id, $owner_uid);
1576
1577                 }
1578
1579                 if ($match_part) {
1580
1581                         if ($n_feed != 0) {
1582                                 $from_qpart = "ttrss_user_entries,ttrss_feeds,ttrss_entries";
1583                                 $feeds_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
1584                         } else {
1585                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
1586                                 $feeds_qpart = '';
1587                         }
1588
1589                         $query = "SELECT count(int_id) AS unread
1590                                 FROM $from_qpart WHERE
1591                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
1592                                 $age_qpart AND
1593                                 $feeds_qpart
1594                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1595
1596                         $result = db_query($link, $query);
1597
1598                 } else {
1599
1600                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
1601                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1602                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1603                                 AND $unread_qpart AND $age_qpart AND
1604                                         ttrss_tags.owner_uid = " . $owner_uid);
1605                 }
1606
1607                 $unread = db_fetch_result($result, 0, "unread");
1608
1609                 return $unread;
1610         }
1611
1612         function getGlobalUnread($link, $user_id = false) {
1613
1614                 if (!$user_id) {
1615                         $user_id = $_SESSION["uid"];
1616                 }
1617
1618                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1619                         WHERE owner_uid = '$user_id' AND feed_id > 0");
1620
1621                 $c_id = db_fetch_result($result, 0, "c_id");
1622
1623                 return $c_id;
1624         }
1625
1626         function getGlobalCounters($link, $global_unread = -1) {
1627                 $ret_arr = array();
1628
1629                 if ($global_unread == -1) {
1630                         $global_unread = getGlobalUnread($link);
1631                 }
1632
1633                 $cv = array("id" => "global-unread",
1634                         "counter" => $global_unread);
1635
1636                 array_push($ret_arr, $cv);
1637
1638                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
1639                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1640
1641                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1642
1643                 $cv = array("id" => "subscribed-feeds",
1644                         "counter" => $subscribed_feeds);
1645
1646                 array_push($ret_arr, $cv);
1647
1648                 return $ret_arr;
1649         }
1650
1651         function getTagCounters($link) {
1652
1653                 $ret_arr = array();
1654
1655                 $age_qpart = getMaxAgeSubquery();
1656
1657                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
1658                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1659                                 AND ref_id = id AND $age_qpart
1660                                 AND unread = true)) AS count FROM ttrss_tags
1661                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
1662                                 ORDER BY count DESC LIMIT 55");
1663
1664                 $tags = array();
1665
1666                 while ($line = db_fetch_assoc($result)) {
1667                         $tags[$line["tag_name"]] += $line["count"];
1668                 }
1669
1670                 foreach (array_keys($tags) as $tag) {
1671                         $unread = $tags[$tag];
1672                         $tag = htmlspecialchars($tag);
1673
1674                         $cv = array("id" => $tag,
1675                                 "kind" => "tag",
1676                                 "counter" => $unread);
1677
1678                         array_push($ret_arr, $cv);
1679                 }
1680
1681                 return $ret_arr;
1682         }
1683
1684         function getVirtCounters($link) {
1685
1686                 $ret_arr = array();
1687
1688                 for ($i = 0; $i >= -4; $i--) {
1689
1690                         $count = getFeedUnread($link, $i);
1691
1692                         $cv = array("id" => $i,
1693                                 "counter" => $count);
1694
1695 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1696 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
1697
1698                         array_push($ret_arr, $cv);
1699                 }
1700
1701                 return $ret_arr;
1702         }
1703
1704         function getLabelCounters($link, $descriptions = false) {
1705
1706                 $ret_arr = array();
1707
1708                 $age_qpart = getMaxAgeSubquery();
1709
1710                 $owner_uid = $_SESSION["uid"];
1711
1712                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
1713                         WHERE owner_uid = '$owner_uid'");
1714
1715                 while ($line = db_fetch_assoc($result)) {
1716
1717                         $id = -$line["id"] - 11;
1718
1719                         $label_name = $line["caption"];
1720                         $count = getFeedUnread($link, $id);
1721
1722                         $cv = array("id" => $id,
1723                                 "counter" => $count);
1724
1725                         if ($descriptions)
1726                                 $cv["description"] = $label_name;
1727
1728 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1729 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
1730
1731                         array_push($ret_arr, $cv);
1732                 }
1733
1734                 return $ret_arr;
1735         }
1736
1737         function getFeedCounters($link, $active_feed = false) {
1738
1739                 $ret_arr = array();
1740
1741                 $age_qpart = getMaxAgeSubquery();
1742
1743                 $query = "SELECT ttrss_feeds.id,
1744                                 ttrss_feeds.title,
1745                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1746                                 last_error, value AS count
1747                         FROM ttrss_feeds, ttrss_counters_cache
1748                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1749                                 AND ttrss_counters_cache.feed_id = id";
1750
1751                 $result = db_query($link, $query);
1752                 $fctrs_modified = false;
1753
1754                 while ($line = db_fetch_assoc($result)) {
1755
1756                         $id = $line["id"];
1757                         $count = $line["count"];
1758                         $last_error = htmlspecialchars($line["last_error"]);
1759
1760                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
1761
1762                         $has_img = feed_has_icon($id);
1763
1764                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1765                                 $last_updated = '';
1766
1767                         $cv = array("id" => $id,
1768                                 "updated" => $last_updated,
1769                                 "counter" => $count,
1770                                 "has_img" => (int) $has_img);
1771
1772                         if ($last_error)
1773                                 $cv["error"] = $last_error;
1774
1775 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1776 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
1777
1778                         if ($active_feed && $id == $active_feed)
1779                                 $cv["title"] = truncate_string($line["title"], 30);
1780
1781                         array_push($ret_arr, $cv);
1782
1783                 }
1784
1785                 return $ret_arr;
1786         }
1787
1788         function get_pgsql_version($link) {
1789                 $result = db_query($link, "SELECT version() AS version");
1790                 $version = explode(" ", db_fetch_result($result, 0, "version"));
1791                 return $version[1];
1792         }
1793
1794         /**
1795          * Subscribes the user to the given feed
1796          *
1797          * @param resource $link       Database connection
1798          * @param string   $url        Feed URL to subscribe to
1799          * @param integer  $cat_id     Category ID the feed shall be added to
1800          * @param string   $auth_login (optional) Feed username
1801          * @param string   $auth_pass  (optional) Feed password
1802          *
1803          * @return integer Status code:
1804          *                 0 - OK, Feed already exists
1805          *                 1 - OK, Feed added
1806          *                 2 - Invalid URL
1807          *                 3 - URL content is HTML, no feeds available
1808          *                 4 - URL content is HTML which contains multiple feeds.
1809          *                     Here you should call extractfeedurls in rpc-backend
1810          *                     to get all possible feeds.
1811          *                 5 - Couldn't download the URL content.
1812          */
1813         function subscribe_to_feed($link, $url, $cat_id = 0,
1814                         $auth_login = '', $auth_pass = '') {
1815
1816                 require_once "include/rssfuncs.php";
1817
1818                 $url = fix_url($url);
1819
1820                 if (!$url || !validate_feed_url($url)) return 2;
1821
1822                 $update_method = 0;
1823
1824                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
1825                         WHERE id = ".$_SESSION['uid']);
1826
1827                 $has_oauth = db_fetch_result($result, 0, 'twitter_oauth');
1828
1829                 if (!$has_oauth || strpos($url, '://api.twitter.com') === false) {
1830                         if (!fetch_file_contents($url, false, $auth_login, $auth_pass)) return 5;
1831
1832                         if (url_is_html($url, $auth_login, $auth_pass)) {
1833                                 $feedUrls = get_feeds_from_html($url, $auth_login, $auth_pass);
1834                                 if (count($feedUrls) == 0) {
1835                                         return 3;
1836                                 } else if (count($feedUrls) > 1) {
1837                                         return 4;
1838                                 }
1839                                 //use feed url as new URL
1840                                 $url = key($feedUrls);
1841                         }
1842
1843                         } else {
1844                                 if (!fetch_twitter_rss($link, $url, $_SESSION['uid']))
1845                                         return 5;
1846
1847                                 $update_method = 3;
1848                         }
1849                 if ($cat_id == "0" || !$cat_id) {
1850                         $cat_qpart = "NULL";
1851                 } else {
1852                         $cat_qpart = "'$cat_id'";
1853                 }
1854
1855                 $result = db_query($link,
1856                         "SELECT id FROM ttrss_feeds
1857                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1858
1859                 if (db_num_rows($result) == 0) {
1860                         $result = db_query($link,
1861                                 "INSERT INTO ttrss_feeds
1862                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
1863                                 VALUES ('".$_SESSION["uid"]."', '$url',
1864                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
1865
1866                         $result = db_query($link,
1867                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1868                                         AND owner_uid = " . $_SESSION["uid"]);
1869
1870                         $feed_id = db_fetch_result($result, 0, "id");
1871
1872                         if ($feed_id) {
1873                                 update_rss_feed($link, $feed_id, true);
1874                         }
1875
1876                         return 1;
1877                 } else {
1878                         return 0;
1879                 }
1880         }
1881
1882         function print_feed_select($link, $id, $default_id = "",
1883                 $attributes = "", $include_all_feeds = true) {
1884
1885                 print "<select id=\"$id\" name=\"$id\" $attributes>";
1886                 if ($include_all_feeds) {
1887                         print "<option value=\"0\">".__('All feeds')."</option>";
1888                 }
1889
1890                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
1891                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1892
1893                 if (db_num_rows($result) > 0 && $include_all_feeds) {
1894                         print "<option disabled>--------</option>";
1895                 }
1896
1897                 while ($line = db_fetch_assoc($result)) {
1898                         if ($line["id"] == $default_id) {
1899                                 $is_selected = "selected=\"1\"";
1900                         } else {
1901                                 $is_selected = "";
1902                         }
1903
1904                         $title = truncate_string(htmlspecialchars($line["title"]), 40);
1905
1906                         printf("<option $is_selected value='%d'>%s</option>",
1907                                 $line["id"], $title);
1908                 }
1909
1910                 print "</select>";
1911         }
1912
1913         function print_feed_cat_select($link, $id, $default_id = "",
1914                 $attributes = "", $include_all_cats = true) {
1915
1916                 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1917
1918                 if ($include_all_cats) {
1919                         print "<option value=\"0\">".__('Uncategorized')."</option>";
1920                 }
1921
1922                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
1923                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1924
1925                 if (db_num_rows($result) > 0 && $include_all_cats) {
1926                         print "<option disabled=\"1\">--------</option>";
1927                 }
1928
1929                 while ($line = db_fetch_assoc($result)) {
1930                         if ($line["id"] == $default_id) {
1931                                 $is_selected = "selected=\"1\"";
1932                         } else {
1933                                 $is_selected = "";
1934                         }
1935
1936                         if ($line["title"])
1937                                 printf("<option $is_selected value='%d'>%s</option>",
1938                                         $line["id"], htmlspecialchars($line["title"]));
1939                 }
1940
1941 #               print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
1942
1943                 print "</select>";
1944         }
1945
1946         function checkbox_to_sql_bool($val) {
1947                 return ($val == "on") ? "true" : "false";
1948         }
1949
1950         function getFeedCatTitle($link, $id) {
1951                 if ($id == -1) {
1952                         return __("Special");
1953                 } else if ($id < -10) {
1954                         return __("Labels");
1955                 } else if ($id > 0) {
1956                         $result = db_query($link, "SELECT ttrss_feed_categories.title
1957                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
1958                                         cat_id = ttrss_feed_categories.id");
1959                         if (db_num_rows($result) == 1) {
1960                                 return db_fetch_result($result, 0, "title");
1961                         } else {
1962                                 return __("Uncategorized");
1963                         }
1964                 } else {
1965                         return "getFeedCatTitle($id) failed";
1966                 }
1967
1968         }
1969
1970         function getFeedIcon($id) {
1971                 switch ($id) {
1972                 case 0:
1973                         return "images/archive.png";
1974                         break;
1975                 case -1:
1976                         return "images/mark_set.png";
1977                         break;
1978                 case -2:
1979                         return "images/pub_set.png";
1980                         break;
1981                 case -3:
1982                         return "images/fresh.png";
1983                         break;
1984                 case -4:
1985                         return "images/tag.png";
1986                         break;
1987                 default:
1988                         if ($id < -10) {
1989                                 return "images/label.png";
1990                         } else {
1991                                 if (file_exists(ICONS_DIR . "/$id.ico"))
1992                                         return ICONS_URL . "/$id.ico";
1993                         }
1994                         break;
1995                 }
1996         }
1997
1998         function getFeedTitle($link, $id) {
1999                 if ($id == -1) {
2000                         return __("Starred articles");
2001                 } else if ($id == -2) {
2002                         return __("Published articles");
2003                 } else if ($id == -3) {
2004                         return __("Fresh articles");
2005                 } else if ($id == -4) {
2006                         return __("All articles");
2007                 } else if ($id === 0 || $id === "0") {
2008                         return __("Archived articles");
2009                 } else if ($id < -10) {
2010                         $label_id = -$id - 11;
2011                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
2012                         if (db_num_rows($result) == 1) {
2013                                 return db_fetch_result($result, 0, "caption");
2014                         } else {
2015                                 return "Unknown label ($label_id)";
2016                         }
2017
2018                 } else if (is_numeric($id) && $id > 0) {
2019                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
2020                         if (db_num_rows($result) == 1) {
2021                                 return db_fetch_result($result, 0, "title");
2022                         } else {
2023                                 return "Unknown feed ($id)";
2024                         }
2025                 } else {
2026                         return $id;
2027                 }
2028         }
2029
2030         function make_init_params($link) {
2031                 $params = array();
2032
2033                 $params["theme"] = get_user_theme($link);
2034                 $params["theme_options"] = get_user_theme_options($link);
2035
2036                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
2037                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
2038                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
2039                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
2040
2041                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
2042                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
2043                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
2044                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
2045
2046                                  $params[strtolower($param)] = (int) get_pref($link, $param);
2047                  }
2048
2049                 $params["icons_url"] = ICONS_URL;
2050                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
2051                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
2052                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
2053                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
2054                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
2055
2056                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
2057                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2058
2059                 $max_feed_id = db_fetch_result($result, 0, "mid");
2060                 $num_feeds = db_fetch_result($result, 0, "nf");
2061
2062                 $params["max_feed_id"] = (int) $max_feed_id;
2063                 $params["num_feeds"] = (int) $num_feeds;
2064
2065                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
2066
2067                 return $params;
2068         }
2069
2070         function make_runtime_info($link) {
2071                 $data = array();
2072
2073                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
2074                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2075
2076                 $max_feed_id = db_fetch_result($result, 0, "mid");
2077                 $num_feeds = db_fetch_result($result, 0, "nf");
2078
2079                 $data["max_feed_id"] = (int) $max_feed_id;
2080                 $data["num_feeds"] = (int) $num_feeds;
2081
2082                 $data['last_article_id'] = getLastArticleId($link);
2083                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
2084
2085                 if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
2086
2087                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
2088
2089                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
2090
2091                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
2092
2093                                 if ($stamp) {
2094                                         $stamp_delta = time() - $stamp;
2095
2096                                         if ($stamp_delta > 1800) {
2097                                                 $stamp_check = 0;
2098                                         } else {
2099                                                 $stamp_check = 1;
2100                                                 $_SESSION["daemon_stamp_check"] = time();
2101                                         }
2102
2103                                         $data['daemon_stamp_ok'] = $stamp_check;
2104
2105                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
2106
2107                                         $data['daemon_stamp'] = $stamp_fmt;
2108                                 }
2109                         }
2110                 }
2111
2112                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
2113                                 $new_version_details = @check_for_update($link);
2114
2115                                 $data['new_version_available'] = (int) ($new_version_details != false);
2116
2117                                 $_SESSION["last_version_check"] = time();
2118                 }
2119
2120                 return $data;
2121         }
2122
2123         function search_to_sql($link, $search, $match_on) {
2124
2125                 $search_query_part = "";
2126
2127                 $keywords = explode(" ", $search);
2128                 $query_keywords = array();
2129
2130                 foreach ($keywords as $k) {
2131                         if (strpos($k, "-") === 0) {
2132                                 $k = substr($k, 1);
2133                                 $not = "NOT";
2134                         } else {
2135                                 $not = "";
2136                         }
2137
2138                         $commandpair = explode(":", mb_strtolower($k), 2);
2139
2140                         if ($commandpair[0] == "note" && $commandpair[1]) {
2141
2142                                 if ($commandpair[1] == "true")
2143                                         array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
2144                                 else
2145                                         array_push($query_keywords, "($not (note IS NULL OR note = ''))");
2146
2147                         } else if ($commandpair[0] == "star" && $commandpair[1]) {
2148
2149                                 if ($commandpair[1] == "true")
2150                                         array_push($query_keywords, "($not (marked = true))");
2151                                 else
2152                                         array_push($query_keywords, "($not (marked = false))");
2153
2154                         } else if ($commandpair[0] == "pub" && $commandpair[1]) {
2155
2156                                 if ($commandpair[1] == "true")
2157                                         array_push($query_keywords, "($not (published = true))");
2158                                 else
2159                                         array_push($query_keywords, "($not (published = false))");
2160
2161                         } else if (strpos($k, "@") === 0) {
2162
2163                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
2164                                 $orig_ts = strtotime(substr($k, 1));
2165                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
2166
2167                                 //$k = date("Y-m-d", strtotime(substr($k, 1)));
2168
2169                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
2170                         } else if ($match_on == "both") {
2171                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
2172                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
2173                         } else if ($match_on == "title") {
2174                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
2175                         } else if ($match_on == "content") {
2176                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
2177                         }
2178                 }
2179
2180                 $search_query_part = implode("AND", $query_keywords);
2181
2182                 return $search_query_part;
2183         }
2184
2185
2186         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0) {
2187
2188                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2189
2190                 $ext_tables_part = "";
2191
2192                         if ($search) {
2193
2194                                 if (SPHINX_ENABLED) {
2195                                         $ids = join(",", @sphinx_search($search, 0, 500));
2196
2197                                         if ($ids)
2198                                                 $search_query_part = "ref_id IN ($ids) AND ";
2199                                         else
2200                                                 $search_query_part = "ref_id = -1 AND ";
2201
2202                                 } else {
2203                                         $search_query_part = search_to_sql($link, $search, $match_on);
2204                                         $search_query_part .= " AND ";
2205                                 }
2206
2207                         } else {
2208                                 $search_query_part = "";
2209                         }
2210
2211                         if ($filter) {
2212                                 $filter_query_part = filter_to_sql($filter);
2213                         } else {
2214                                 $filter_query_part = "";
2215                         }
2216
2217                         if ($since_id) {
2218                                 $since_id_part = "ttrss_entries.id > $since_id AND ";
2219                         } else {
2220                                 $since_id_part = "";
2221                         }
2222
2223                         $view_query_part = "";
2224
2225                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
2226                                 if ($search) {
2227                                         $view_query_part = " ";
2228                                 } else if ($feed != -1) {
2229                                         $unread = getFeedUnread($link, $feed, $cat_view);
2230                                         if ($unread > 0) {
2231                                                 $view_query_part = " unread = true AND ";
2232                                         }
2233                                 }
2234                         }
2235
2236                         if ($view_mode == "marked") {
2237                                 $view_query_part = " marked = true AND ";
2238                         }
2239
2240                         if ($view_mode == "published") {
2241                                 $view_query_part = " published = true AND ";
2242                         }
2243
2244                         if ($view_mode == "unread") {
2245                                 $view_query_part = " unread = true AND ";
2246                         }
2247
2248                         if ($view_mode == "updated") {
2249                                 $view_query_part = " (last_read is null and unread = false) AND ";
2250                         }
2251
2252                         if ($limit > 0) {
2253                                 $limit_query_part = "LIMIT " . $limit;
2254                         }
2255
2256                         $vfeed_query_part = "";
2257
2258                         // override query strategy and enable feed display when searching globally
2259                         if ($search && $search_mode == "all_feeds") {
2260                                 $query_strategy_part = "ttrss_entries.id > 0";
2261                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2262                         /* tags */
2263                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
2264                                 $query_strategy_part = "ttrss_entries.id > 0";
2265                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
2266                                         id = feed_id) as feed_title,";
2267                         } else if ($feed > 0 && $search && $search_mode == "this_cat") {
2268
2269                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2270
2271                                 $tmp_result = false;
2272
2273                                 if ($cat_view) {
2274                                         $tmp_result = db_query($link, "SELECT id
2275                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
2276                                 } else {
2277                                         $tmp_result = db_query($link, "SELECT id
2278                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
2279                                                         WHERE id = '$feed') AND id != '$feed'");
2280                                 }
2281
2282                                 $cat_siblings = array();
2283
2284                                 if (db_num_rows($tmp_result) > 0) {
2285                                         while ($p = db_fetch_assoc($tmp_result)) {
2286                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
2287                                         }
2288
2289                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
2290                                                 $feed, implode(" OR ", $cat_siblings));
2291
2292                                 } else {
2293                                         $query_strategy_part = "ttrss_entries.id > 0";
2294                                 }
2295
2296                         } else if ($feed > 0) {
2297
2298                                 if ($cat_view) {
2299
2300                                         if ($feed > 0) {
2301                                                 $query_strategy_part = "cat_id = '$feed'";
2302                                         } else {
2303                                                 $query_strategy_part = "cat_id IS NULL";
2304                                         }
2305
2306                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2307
2308                                 } else {
2309                                         $query_strategy_part = "feed_id = '$feed'";
2310                                 }
2311                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
2312                                 $query_strategy_part = "feed_id IS NULL";
2313                         } else if ($feed == 0 && $cat_view) { // uncategorized
2314                                 $query_strategy_part = "cat_id IS NULL";
2315                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2316                         } else if ($feed == -1) { // starred virtual feed
2317                                 $query_strategy_part = "marked = true";
2318                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2319                         } else if ($feed == -2) { // published virtual feed OR labels category
2320
2321                                 if (!$cat_view) {
2322                                         $query_strategy_part = "published = true";
2323                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2324                                 } else {
2325                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2326
2327                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2328
2329                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
2330                                                 ttrss_user_labels2.article_id = ref_id";
2331
2332                                 }
2333
2334                         } else if ($feed == -3) { // fresh virtual feed
2335                                 $query_strategy_part = "unread = true AND score >= 0";
2336
2337                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2338
2339                                 if (DB_TYPE == "pgsql") {
2340                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2341                                 } else {
2342                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2343                                 }
2344
2345                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2346                         } else if ($feed == -4) { // all articles virtual feed
2347                                 $query_strategy_part = "true";
2348                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2349                         } else if ($feed <= -10) { // labels
2350                                 $label_id = -$feed - 11;
2351
2352                                 $query_strategy_part = "label_id = '$label_id' AND
2353                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
2354                                         ttrss_user_labels2.article_id = ref_id";
2355
2356                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2357                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2358
2359                         } else {
2360                                 $query_strategy_part = "id > 0"; // dumb
2361                         }
2362
2363                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
2364                                 $date_sort_field = "updated";
2365                         } else {
2366                                 $date_sort_field = "date_entered";
2367                         }
2368
2369                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
2370                                 $order_by = "$date_sort_field";
2371                         } else {
2372                                 $order_by = "$date_sort_field DESC";
2373                         }
2374
2375                         if ($view_mode != "noscores") {
2376                                 $order_by = "score DESC, $order_by";
2377                         }
2378
2379                         if ($override_order) {
2380                                 $order_by = $override_order;
2381                         }
2382
2383                         $feed_title = "";
2384
2385                         if ($search) {
2386                                 $feed_title = "Search results";
2387                         } else {
2388                                 if ($cat_view) {
2389                                         $feed_title = getCategoryTitle($link, $feed);
2390                                 } else {
2391                                         if (is_numeric($feed) && $feed > 0) {
2392                                                 $result = db_query($link, "SELECT title,site_url,last_error
2393                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
2394
2395                                                 $feed_title = db_fetch_result($result, 0, "title");
2396                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
2397                                                 $last_error = db_fetch_result($result, 0, "last_error");
2398                                         } else {
2399                                                 $feed_title = getFeedTitle($link, $feed);
2400                                         }
2401                                 }
2402                         }
2403
2404                         $content_query_part = "content as content_preview,";
2405
2406                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2407
2408                                 if ($feed >= 0) {
2409                                         $feed_kind = "Feeds";
2410                                 } else {
2411                                         $feed_kind = "Labels";
2412                                 }
2413
2414                                 if ($limit_query_part) {
2415                                         $offset_query_part = "OFFSET $offset";
2416                                 }
2417
2418                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
2419                                         if (!$override_order) {
2420                                                 $order_by = "ttrss_feeds.title, $order_by";
2421                                         }
2422                                 }
2423
2424                                 if ($feed != "0") {
2425                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
2426                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2427
2428                                 } else {
2429                                         $from_qpart = "ttrss_entries,ttrss_user_entries$ext_tables_part
2430                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
2431                                 }
2432
2433                                 $query = "SELECT DISTINCT
2434                                                 date_entered,
2435                                                 guid,
2436                                                 ttrss_entries.id,ttrss_entries.title,
2437                                                 updated,
2438                                                 label_cache,
2439                                                 tag_cache,
2440                                                 always_display_enclosures,
2441                                                 site_url,
2442                                                 note,
2443                                                 num_comments,
2444                                                 comments,
2445                                                 int_id,
2446                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
2447                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
2448                                                 $vfeed_query_part
2449                                                 $content_query_part
2450                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
2451                                                 author,score
2452                                         FROM
2453                                                 $from_qpart
2454                                         WHERE
2455                                         $feed_check_qpart
2456                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2457                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
2458                                         $search_query_part
2459                                         $filter_query_part
2460                                         $view_query_part
2461                                         $since_id_part
2462                                         $query_strategy_part ORDER BY $order_by
2463                                         $limit_query_part $offset_query_part";
2464
2465                                 if ($_REQUEST["debug"]) print $query;
2466
2467                                 $result = db_query($link, $query);
2468
2469                         } else {
2470                                 // browsing by tag
2471
2472                                 $select_qpart = "SELECT DISTINCT " .
2473                                                                 "date_entered," .
2474                                                                 "guid," .
2475                                                                 "note," .
2476                                                                 "ttrss_entries.id as id," .
2477                                                                 "title," .
2478                                                                 "updated," .
2479                                                                 "unread," .
2480                                                                 "feed_id," .
2481                                                                 "orig_feed_id," .
2482                                                                 "marked," .
2483                                                                 "num_comments, " .
2484                                                                 "comments, " .
2485                                                                 "tag_cache," .
2486                                                                 "label_cache," .
2487                                                                 "link," .
2488                                                                 "last_read," .
2489                                                                 SUBSTRING_FOR_DATE . "(last_read,1,19) as last_read_noms," .
2490                                                                 $since_id_part .
2491                                                                 $vfeed_query_part .
2492                                                                 $content_query_part .
2493                                                                 SUBSTRING_FOR_DATE . "(updated,1,19) as updated_noms," .
2494                                                                 "score ";
2495
2496                                 $feed_kind = "Tags";
2497                                 $all_tags = explode(",", $feed);
2498                                 if ($search_mode == 'any') {
2499                                         $tag_sql = "tag_name in (" . implode(", ", array_map("db_quote", $all_tags)) . ")";
2500                                         $from_qpart = " FROM ttrss_entries,ttrss_user_entries,ttrss_tags ";
2501                                         $where_qpart = " WHERE " .
2502                                                                    "ref_id = ttrss_entries.id AND " .
2503                                                                    "ttrss_user_entries.owner_uid = $owner_uid AND " .
2504                                                                    "post_int_id = int_id AND $tag_sql AND " .
2505                                                                    $view_query_part .
2506                                                                    $search_query_part .
2507                                                                    $query_strategy_part . " ORDER BY $order_by " .
2508                                                                    $limit_query_part;
2509
2510                                 } else {
2511                                         $i = 1;
2512                                         $sub_selects = array();
2513                                         $sub_ands = array();
2514                                         foreach ($all_tags as $term) {
2515                                                 array_push($sub_selects, "(SELECT post_int_id from ttrss_tags WHERE tag_name = " . db_quote($term) . " AND owner_uid = $owner_uid) as A$i");
2516                                                 $i++;
2517                                         }
2518                                         if ($i > 2) {
2519                                                 $x = 1;
2520                                                 $y = 2;
2521                                                 do {
2522                                                         array_push($sub_ands, "A$x.post_int_id = A$y.post_int_id");
2523                                                         $x++;
2524                                                         $y++;
2525                                                 } while ($y < $i);
2526                                         }
2527                                         array_push($sub_ands, "A1.post_int_id = ttrss_user_entries.int_id and ttrss_user_entries.owner_uid = $owner_uid");
2528                                         array_push($sub_ands, "ttrss_user_entries.ref_id = ttrss_entries.id");
2529                                         $from_qpart = " FROM " . implode(", ", $sub_selects) . ", ttrss_user_entries, ttrss_entries";
2530                                         $where_qpart = " WHERE " . implode(" AND ", $sub_ands);
2531                                 }
2532                                 //                              error_log("TAG SQL: " . $tag_sql);
2533                                 // $tag_sql = "tag_name = '$feed'";   DEFAULT way
2534
2535                                 //                              error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
2536                                 $result = db_query($link, $select_qpart . $from_qpart . $where_qpart);
2537                         }
2538
2539                         return array($result, $feed_title, $feed_site_url, $last_error);
2540
2541         }
2542
2543         function sanitize($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
2544                 global $purifier;
2545
2546                 if (!$owner) $owner = $_SESSION["uid"];
2547
2548                 $res = trim($str); if (!$res) return '';
2549
2550                 // create global Purifier object if needed
2551                 if (!$purifier) {
2552                         require_once 'lib/htmlpurifier/library/HTMLPurifier.auto.php';
2553
2554                         $config = HTMLPurifier_Config::createDefault();
2555
2556                         $allowed = "p,a[href],i,em,b,strong,code,pre,blockquote,br,img[src|alt|title],ul,ol,li,h1,h2,h3,h4,s,object[classid|type|id|name|width|height|codebase],param[name|value],table,tr,td";
2557
2558                         $config->set('HTML.SafeObject', true);
2559                         @$config->set('HTML', 'Allowed', $allowed);
2560                         $config->set('Output.FlashCompat', true);
2561                         $config->set('Attr.EnableID', true);
2562                         if (!defined('MOBILE_VERSION')) {
2563                                 @$config->set('Cache', 'SerializerPath', CACHE_DIR . "/htmlpurifier");
2564                         } else {
2565                                 @$config->set('Cache', 'SerializerPath', "../" . CACHE_DIR . "/htmlpurifier");
2566                         }
2567
2568                         $purifier = new HTMLPurifier($config);
2569                 }
2570
2571                 $res = $purifier->purify($res);
2572
2573                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
2574                         $res = preg_replace('/<img[^>]+>/is', '', $res);
2575                 }
2576
2577                 if (strpos($res, "href=") === false)
2578                         $res = rewrite_urls($res);
2579
2580                 $charset_hack = '<head>
2581                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
2582                 </head>';
2583
2584                 $res = trim($res); if (!$res) return '';
2585
2586                 libxml_use_internal_errors(true);
2587
2588                 $doc = new DOMDocument();
2589                 $doc->loadHTML($charset_hack . $res);
2590                 $xpath = new DOMXPath($doc);
2591
2592                 $entries = $xpath->query('(//a[@href]|//img[@src])');
2593                 $br_inserted = 0;
2594
2595                 foreach ($entries as $entry) {
2596
2597                         if ($site_url) {
2598
2599                                 if ($entry->hasAttribute('href'))
2600                                         $entry->setAttribute('href',
2601                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
2602
2603                                 if ($entry->hasAttribute('src'))
2604                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
2605                                                 $entry->setAttribute('src',
2606                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
2607                         }
2608
2609                         if (strtolower($entry->nodeName) == "a") {
2610                                 $entry->setAttribute("target", "_blank");
2611                         }
2612
2613                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
2614                                 $br = $doc->createElement("br");
2615
2616                                 if ($entry->parentNode->nextSibling) {
2617                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
2618                                         $br_inserted = 1;
2619                                 }
2620
2621                         }
2622                 }
2623
2624                 $node = $doc->getElementsByTagName('body')->item(0);
2625
2626                 return $doc->saveXML($node);
2627         }
2628
2629         /**
2630          * Send by mail a digest of last articles.
2631          *
2632          * @param mixed $link The database connection.
2633          * @param integer $limit The maximum number of articles by digest.
2634          * @return boolean Return false if digests are not enabled.
2635          */
2636         function send_headlines_digests($link, $limit = 100) {
2637
2638                 require_once 'lib/phpmailer/class.phpmailer.php';
2639
2640                 $user_limit = 15; // amount of users to process (e.g. emails to send out)
2641                 $days = 1;
2642
2643                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
2644
2645                 if (DB_TYPE == "pgsql") {
2646                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
2647                 } else if (DB_TYPE == "mysql") {
2648                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
2649                 }
2650
2651                 $result = db_query($link, "SELECT id,email FROM ttrss_users
2652                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
2653
2654                 while ($line = db_fetch_assoc($result)) {
2655
2656                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
2657                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
2658
2659                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
2660
2661                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
2662                                 $digest = $tuple[0];
2663                                 $headlines_count = $tuple[1];
2664                                 $affected_ids = $tuple[2];
2665                                 $digest_text = $tuple[3];
2666
2667                                 if ($headlines_count > 0) {
2668
2669                                         $mail = new PHPMailer();
2670
2671                                         $mail->PluginDir = "lib/phpmailer/";
2672                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
2673
2674                                         $mail->CharSet = "UTF-8";
2675
2676                                         $mail->From = SMTP_FROM_ADDRESS;
2677                                         $mail->FromName = SMTP_FROM_NAME;
2678                                         $mail->AddAddress($line["email"], $line["login"]);
2679
2680                                         if (SMTP_HOST) {
2681                                                 $mail->Host = SMTP_HOST;
2682                                                 $mail->Mailer = "smtp";
2683                                                 $mail->SMTPAuth = SMTP_LOGIN != '';
2684                                                 $mail->Username = SMTP_LOGIN;
2685                                                 $mail->Password = SMTP_PASSWORD;
2686                                         }
2687
2688                                         $mail->IsHTML(true);
2689                                         $mail->Subject = DIGEST_SUBJECT;
2690                                         $mail->Body = $digest;
2691                                         $mail->AltBody = $digest_text;
2692
2693                                         $rc = $mail->Send();
2694
2695                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
2696
2697                                         print "RC=$rc\n";
2698
2699                                         if ($rc && $do_catchup) {
2700                                                 print "Marking affected articles as read...\n";
2701                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
2702                                         }
2703                                 } else {
2704                                         print "No headlines\n";
2705                                 }
2706
2707                                 db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
2708                                         WHERE id = " . $line["id"]);
2709                         }
2710                 }
2711
2712                 print "All done.\n";
2713
2714         }
2715
2716         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
2717
2718                 require_once "lib/MiniTemplator.class.php";
2719
2720                 $tpl = new MiniTemplator;
2721                 $tpl_t = new MiniTemplator;
2722
2723                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
2724                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
2725
2726                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
2727                 $tpl->setVariable('CUR_TIME', date('G:i'));
2728
2729                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
2730                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
2731
2732                 $affected_ids = array();
2733
2734                 if (DB_TYPE == "pgsql") {
2735                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
2736                 } else if (DB_TYPE == "mysql") {
2737                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
2738                 }
2739
2740                 $result = db_query($link, "SELECT ttrss_entries.title,
2741                                 ttrss_feeds.title AS feed_title,
2742                                 date_updated,
2743                                 ttrss_user_entries.ref_id,
2744                                 link,
2745                                 SUBSTRING(content, 1, 120) AS excerpt,
2746                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
2747                         FROM
2748                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
2749                         WHERE
2750                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
2751                                 AND include_in_digest = true
2752                                 AND $interval_query
2753                                 AND ttrss_user_entries.owner_uid = $user_id
2754                                 AND unread = true
2755                         ORDER BY ttrss_feeds.title, date_updated DESC
2756                         LIMIT $limit");
2757
2758                 $cur_feed_title = "";
2759
2760                 $headlines_count = db_num_rows($result);
2761
2762                 $headlines = array();
2763
2764                 while ($line = db_fetch_assoc($result)) {
2765                         array_push($headlines, $line);
2766                 }
2767
2768                 for ($i = 0; $i < sizeof($headlines); $i++) {
2769
2770                         $line = $headlines[$i];
2771
2772                         array_push($affected_ids, $line["ref_id"]);
2773
2774                         $updated = make_local_datetime($link, $line['last_updated'], false,
2775                                 $user_id);
2776
2777                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
2778                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
2779                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
2780                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
2781                         $tpl->setVariable('ARTICLE_EXCERPT',
2782                                 truncate_string(strip_tags($line["excerpt"]), 100));
2783
2784                         $tpl->addBlock('article');
2785
2786                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
2787                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
2788                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
2789                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
2790 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
2791 //                              truncate_string(strip_tags($line["excerpt"]), 100));
2792
2793                         $tpl_t->addBlock('article');
2794
2795                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
2796                                 $tpl->addBlock('feed');
2797                                 $tpl_t->addBlock('feed');
2798                         }
2799
2800                 }
2801
2802                 $tpl->addBlock('digest');
2803                 $tpl->generateOutputToString($tmp);
2804
2805                 $tpl_t->addBlock('digest');
2806                 $tpl_t->generateOutputToString($tmp_t);
2807
2808                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
2809         }
2810
2811         function check_for_update($link) {
2812                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
2813                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
2814
2815                         $version_data = @fetch_file_contents($version_url);
2816
2817                         if ($version_data) {
2818                                 $version_data = json_decode($version_data, true);
2819                                 if ($version_data && $version_data['version']) {
2820
2821                                         if (version_compare(VERSION, $version_data['version']) == -1) {
2822                                                 return $version_data;
2823                                         }
2824                                 }
2825                         }
2826                 }
2827                 return false;
2828         }
2829
2830         function markArticlesById($link, $ids, $cmode) {
2831
2832                 $tmp_ids = array();
2833
2834                 foreach ($ids as $id) {
2835                         array_push($tmp_ids, "ref_id = '$id'");
2836                 }
2837
2838                 $ids_qpart = join(" OR ", $tmp_ids);
2839
2840                 if ($cmode == 0) {
2841                         db_query($link, "UPDATE ttrss_user_entries SET
2842                         marked = false,last_read = NOW()
2843                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2844                 } else if ($cmode == 1) {
2845                         db_query($link, "UPDATE ttrss_user_entries SET
2846                         marked = true
2847                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2848                 } else {
2849                         db_query($link, "UPDATE ttrss_user_entries SET
2850                         marked = NOT marked,last_read = NOW()
2851                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2852                 }
2853         }
2854
2855         function publishArticlesById($link, $ids, $cmode) {
2856
2857                 $tmp_ids = array();
2858
2859                 foreach ($ids as $id) {
2860                         array_push($tmp_ids, "ref_id = '$id'");
2861                 }
2862
2863                 $ids_qpart = join(" OR ", $tmp_ids);
2864
2865                 if ($cmode == 0) {
2866                         db_query($link, "UPDATE ttrss_user_entries SET
2867                         published = false,last_read = NOW()
2868                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2869                 } else if ($cmode == 1) {
2870                         db_query($link, "UPDATE ttrss_user_entries SET
2871                         published = true
2872                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2873                 } else {
2874                         db_query($link, "UPDATE ttrss_user_entries SET
2875                         published = NOT published,last_read = NOW()
2876                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2877                 }
2878
2879                 if (PUBSUBHUBBUB_HUB) {
2880                         $rss_link = get_self_url_prefix() .
2881                                 "/public.php?op=rss&id=-2&key=" .
2882                                 get_feed_access_key($link, -2, false);
2883
2884                         $p = new Publisher(PUBSUBHUBBUB_HUB);
2885
2886                         $pubsub_result = $p->publish_update($rss_link);
2887                 }
2888         }
2889
2890         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
2891
2892                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2893                 if (count($ids) == 0) return;
2894
2895                 $tmp_ids = array();
2896
2897                 foreach ($ids as $id) {
2898                         array_push($tmp_ids, "ref_id = '$id'");
2899                 }
2900
2901                 $ids_qpart = join(" OR ", $tmp_ids);
2902
2903                 if ($cmode == 0) {
2904                         db_query($link, "UPDATE ttrss_user_entries SET
2905                         unread = false,last_read = NOW()
2906                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2907                 } else if ($cmode == 1) {
2908                         db_query($link, "UPDATE ttrss_user_entries SET
2909                         unread = true
2910                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2911                 } else {
2912                         db_query($link, "UPDATE ttrss_user_entries SET
2913                         unread = NOT unread,last_read = NOW()
2914                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2915                 }
2916
2917                 /* update ccache */
2918
2919                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
2920                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2921
2922                 while ($line = db_fetch_assoc($result)) {
2923                         ccache_update($link, $line["feed_id"], $owner_uid);
2924                 }
2925         }
2926
2927         function catchupArticleById($link, $id, $cmode) {
2928
2929                 if ($cmode == 0) {
2930                         db_query($link, "UPDATE ttrss_user_entries SET
2931                         unread = false,last_read = NOW()
2932                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
2933                 } else if ($cmode == 1) {
2934                         db_query($link, "UPDATE ttrss_user_entries SET
2935                         unread = true
2936                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
2937                 } else {
2938                         db_query($link, "UPDATE ttrss_user_entries SET
2939                         unread = NOT unread,last_read = NOW()
2940                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
2941                 }
2942
2943                 $feed_id = getArticleFeed($link, $id);
2944                 ccache_update($link, $feed_id, $_SESSION["uid"]);
2945         }
2946
2947         function make_guid_from_title($title) {
2948                 return preg_replace("/[ \"\',.:;]/", "-",
2949                         mb_strtolower(strip_tags($title), 'utf-8'));
2950         }
2951
2952         function get_article_tags($link, $id, $owner_uid = 0, $tag_cache = false) {
2953
2954                 global $memcache;
2955
2956                 $a_id = db_escape_string($id);
2957
2958                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2959
2960                 $query = "SELECT DISTINCT tag_name,
2961                         owner_uid as owner FROM
2962                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
2963                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
2964
2965                 $obj_id = md5("TAGS:$owner_uid:$id");
2966                 $tags = array();
2967
2968                 if ($memcache && $obj = $memcache->get($obj_id)) {
2969                         $tags = $obj;
2970                 } else {
2971                         /* check cache first */
2972
2973                         if ($tag_cache === false) {
2974                                 $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
2975                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
2976
2977                                 $tag_cache = db_fetch_result($result, 0, "tag_cache");
2978                         }
2979
2980                         if ($tag_cache) {
2981                                 $tags = explode(",", $tag_cache);
2982                         } else {
2983
2984                                 /* do it the hard way */
2985
2986                                 $tmp_result = db_query($link, $query);
2987
2988                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
2989                                         array_push($tags, $tmp_line["tag_name"]);
2990                                 }
2991
2992                                 /* update the cache */
2993
2994                                 $tags_str = db_escape_string(join(",", $tags));
2995
2996                                 db_query($link, "UPDATE ttrss_user_entries
2997                                         SET tag_cache = '$tags_str' WHERE ref_id = '$id'
2998                                         AND owner_uid = " . $_SESSION["uid"]);
2999                         }
3000
3001                         if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);
3002                 }
3003
3004                 return $tags;
3005         }
3006
3007         function trim_array($array) {
3008                 $tmp = $array;
3009                 array_walk($tmp, 'trim');
3010                 return $tmp;
3011         }
3012
3013         function tag_is_valid($tag) {
3014                 if ($tag == '') return false;
3015                 if (preg_match("/^[0-9]*$/", $tag)) return false;
3016                 if (mb_strlen($tag) > 250) return false;
3017
3018                 if (function_exists('iconv')) {
3019                         $tag = iconv("utf-8", "utf-8", $tag);
3020                 }
3021
3022                 if (!$tag) return false;
3023
3024                 return true;
3025         }
3026
3027         function render_login_form($link, $mobile = 0) {
3028                 switch ($mobile) {
3029                 case 0:
3030                         require_once "login_form.php";
3031                         break;
3032                 case 1:
3033                         require_once "mobile/login_form.php";
3034                         break;
3035                 case 2:
3036                         require_once "mobile/classic/login_form.php";
3037                 }
3038         }
3039
3040         // from http://developer.apple.com/internet/safari/faq.html
3041         function no_cache_incantation() {
3042                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
3043                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
3044                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
3045                 header("Cache-Control: post-check=0, pre-check=0", false);
3046                 header("Pragma: no-cache"); // HTTP/1.0
3047         }
3048
3049         function format_warning($msg, $id = "") {
3050                 global $link;
3051                 return "<div class=\"warning\" id=\"$id\">
3052                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3053         }
3054
3055         function format_notice($msg, $id = "") {
3056                 global $link;
3057                 return "<div class=\"notice\" id=\"$id\">
3058                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
3059         }
3060
3061         function format_error($msg, $id = "") {
3062                 global $link;
3063                 return "<div class=\"error\" id=\"$id\">
3064                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3065         }
3066
3067         function print_notice($msg) {
3068                 return print format_notice($msg);
3069         }
3070
3071         function print_warning($msg) {
3072                 return print format_warning($msg);
3073         }
3074
3075         function print_error($msg) {
3076                 return print format_error($msg);
3077         }
3078
3079
3080         function T_sprintf() {
3081                 $args = func_get_args();
3082                 return vsprintf(__(array_shift($args)), $args);
3083         }
3084
3085         function format_inline_player($link, $url, $ctype) {
3086
3087                 $entry = "";
3088
3089                 if (strpos($ctype, "audio/") === 0) {
3090
3091                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
3092                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
3093                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
3094
3095                                 $id = 'AUDIO-' . uniqid();
3096
3097                                 $entry .= "<audio id=\"$id\"\">
3098                                         <source src=\"$url\"></source>
3099                                         </audio>";
3100
3101                                 $entry .= "<span onclick=\"player(this)\"
3102                                         title=\"".__("Click to play")."\" status=\"0\"
3103                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
3104
3105                         } else {
3106
3107                                 $entry .= "<object type=\"application/x-shockwave-flash\"
3108                                         data=\"lib/button/musicplayer.swf?song_url=$url\"
3109                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
3110                                         <param name=\"movie\"
3111                                                 value=\"lib/button/musicplayer.swf?song_url=$url\" />
3112                                         </object>";
3113                         }
3114                 }
3115
3116                 $filename = substr($url, strrpos($url, "/")+1);
3117
3118                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
3119                         $filename . " (" . $ctype . ")" . "</a>";
3120
3121                 return $entry;
3122         }
3123
3124         function format_article($link, $id, $mark_as_read = true, $zoom_mode = false) {
3125
3126                 $rv = array();
3127
3128                 $rv['id'] = $id;
3129
3130                 /* we can figure out feed_id from article id anyway, why do we
3131                  * pass feed_id here? let's ignore the argument :( */
3132
3133                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
3134                         WHERE ref_id = '$id'");
3135
3136                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
3137
3138                 $rv['feed_id'] = $feed_id;
3139
3140                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
3141
3142                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
3143                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
3144
3145                 if (db_num_rows($result) == 1) {
3146                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
3147                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
3148                 } else {
3149                         $rtl_content = false;
3150                         $always_display_enclosures = false;
3151                 }
3152
3153                 if ($rtl_content) {
3154                         $rtl_tag = "dir=\"RTL\"";
3155                         $rtl_class = "RTL";
3156                 } else {
3157                         $rtl_tag = "";
3158                         $rtl_class = "";
3159                 }
3160
3161                 if ($mark_as_read) {
3162                         $result = db_query($link, "UPDATE ttrss_user_entries
3163                                 SET unread = false,last_read = NOW()
3164                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3165
3166                         ccache_update($link, $feed_id, $_SESSION["uid"]);
3167                 }
3168
3169                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
3170                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
3171                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
3172                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
3173                         num_comments,
3174                         tag_cache,
3175                         author,
3176                         orig_feed_id,
3177                         note
3178                         FROM ttrss_entries,ttrss_user_entries
3179                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
3180
3181                 if ($result) {
3182
3183                         $line = db_fetch_assoc($result);
3184
3185                         if ($line["icon_url"]) {
3186                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
3187                         } else {
3188                                 $feed_icon = "&nbsp;";
3189                         }
3190
3191                         $feed_site_url = $line['site_url'];
3192
3193                         $num_comments = $line["num_comments"];
3194                         $entry_comments = "";
3195
3196                         if ($num_comments > 0) {
3197                                 if ($line["comments"]) {
3198                                         $comments_url = $line["comments"];
3199                                 } else {
3200                                         $comments_url = $line["link"];
3201                                 }
3202                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
3203                         } else {
3204                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
3205                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
3206                                 }
3207                         }
3208
3209                         if ($zoom_mode) {
3210                                 header("Content-Type: text/html");
3211                                 $rv['content'] .= "<html><head>
3212                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
3213                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
3214                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
3215                                         </head><body>";
3216                         }
3217
3218                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
3219                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
3220
3221                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
3222
3223                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
3224                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
3225
3226                         $entry_author = $line["author"];
3227
3228                         if ($entry_author) {
3229                                 $entry_author = __(" - ") . $entry_author;
3230                         }
3231
3232                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
3233                                 false, true);
3234
3235                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
3236
3237                         if ($line["link"]) {
3238                                 $rv['content'] .= "<div clear='both'><a target='_blank'
3239                                         title=\"".htmlspecialchars($line['title'])."\"
3240                                         href=\"" .
3241                                         $line["link"] . "\">" .
3242                                         truncate_string($line["title"], 100) .
3243                                         "<span class='author'>$entry_author</span></a></div>";
3244                         } else {
3245                                 $rv['content'] .= "<div clear='both'>" . $line["title"] . "$entry_author</div>";
3246                         }
3247
3248                         $tag_cache = $line["tag_cache"];
3249
3250                         if (!$tag_cache)
3251                                 $tags = get_article_tags($link, $id);
3252                         else
3253                                 $tags = explode(",", $tag_cache);
3254
3255                         $tags_str = format_tags_string($tags, $id);
3256                         $tags_str_full = join(", ", $tags);
3257
3258                         if (!$tags_str_full) $tags_str_full = __("no tags");
3259
3260                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
3261
3262                         $rv['content'] .= "<div style='float : right'>
3263                                 <img src='".theme_image($link, 'images/tag.png')."'
3264                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
3265
3266                         if (!$zoom_mode) {
3267                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
3268                                         <a title=\"".__('Edit tags for this article')."\"
3269                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
3270
3271                                 $rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
3272                                         id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
3273                                         position=\"below\">$tags_str_full</div>";
3274
3275                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
3276                                                 class='tagsPic' style=\"cursor : pointer\"
3277                                                 onclick=\"postOpenInNewTab(event, $id)\"
3278                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
3279
3280                                 //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
3281
3282                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-pub-note.png')."\"
3283                                                 class='tagsPic' style=\"cursor : pointer\"
3284                                                 onclick=\"editArticleNote($id)\"
3285                                                 alt='PubNote' title='".__('Edit article note')."'>";
3286
3287                                 $button_plugins = explode(",", ARTICLE_BUTTON_PLUGINS);
3288
3289                                 foreach ($button_plugins as $p) {
3290                                         $pclass = trim("${p}_button");
3291
3292                                         if (class_exists($pclass)) {
3293                                                 $plugin = new $pclass($link);
3294                                                 $rv['content'] .= $plugin->render($id, $line);
3295                                         }
3296                                 }
3297
3298                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
3299                                                 class='tagsPic' style=\"cursor : pointer\"
3300                                                 onclick=\"closeArticlePanel($id)\"
3301                                                 alt='Zoom' title='".__('Close this panel')."'>";
3302
3303                         } else {
3304                                 $tags_str = strip_tags($tags_str);
3305                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
3306                         }
3307                         $rv['content'] .= "</div>";
3308                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
3309
3310                         if ($line["orig_feed_id"]) {
3311
3312                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
3313                                         WHERE id = ".$line["orig_feed_id"]);
3314
3315                                 if (db_num_rows($tmp_result) != 0) {
3316
3317                                         $rv['content'] .= "<div clear='both'>";
3318                                         $rv['content'] .= __("Originally from:");
3319
3320                                         $rv['content'] .= "&nbsp;";
3321
3322                                         $tmp_line = db_fetch_assoc($tmp_result);
3323
3324                                         $rv['content'] .= "<a target='_blank'
3325                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
3326                                                 $tmp_line['title'] . "</a>";
3327
3328                                         $rv['content'] .= "&nbsp;";
3329
3330                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
3331                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
3332
3333                                         $rv['content'] .= "</div>";
3334                                 }
3335                         }
3336
3337                         $rv['content'] .= "</div>";
3338
3339                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
3340                                 if ($line['note']) {
3341                                         $rv['content'] .= format_article_note($id, $line['note']);
3342                                 }
3343                         $rv['content'] .= "</div>";
3344
3345                         $rv['content'] .= "<div class=\"postIcon\">" .
3346                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
3347                                 href=\"".htmlspecialchars($feed_site_url)."\">".
3348                                 $feed_icon . "</a></div>";
3349
3350                         $rv['content'] .= "<div class=\"postContent\">";
3351
3352                         $article_content = sanitize($link, $line["content"], false, false,
3353                                 $feed_site_url);
3354
3355                         $rv['content'] .= $article_content;
3356
3357                         $rv['content'] .= format_article_enclosures($link, $id,
3358                                 $always_display_enclosures, $article_content);
3359
3360                         $rv['content'] .= "</div>";
3361
3362                         $rv['content'] .= "</div>";
3363
3364                 }
3365
3366                 if ($zoom_mode) {
3367                         $rv['content'] .= "
3368                                 <div style=\"text-align : center\">
3369                                 <button onclick=\"return window.close()\">".
3370                                         __("Close this window")."</button></div>";
3371                         $rv['content'] .= "</body></html>";
3372                 }
3373
3374                 return $rv;
3375
3376         }
3377
3378         function print_checkpoint($n, $s) {
3379                 $ts = getmicrotime();
3380                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
3381                 return $ts;
3382         }
3383
3384         function sanitize_tag($tag) {
3385                 $tag = trim($tag);
3386
3387                 $tag = mb_strtolower($tag, 'utf-8');
3388
3389                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
3390
3391 //              $tag = str_replace('"', "", $tag);
3392 //              $tag = str_replace("+", " ", $tag);
3393                 $tag = str_replace("technorati tag: ", "", $tag);
3394
3395                 return $tag;
3396         }
3397
3398         function get_self_url_prefix() {
3399                 return SELF_URL_PATH;
3400         }
3401
3402         function opml_publish_url($link){
3403
3404                 $url_path = get_self_url_prefix();
3405                 $url_path .= "/opml.php?op=publish&key=" .
3406                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
3407
3408                 return $url_path;
3409         }
3410
3411         /**
3412          * Purge a feed contents, marked articles excepted.
3413          *
3414          * @param mixed $link The database connection.
3415          * @param integer $id The id of the feed to purge.
3416          * @return void
3417          */
3418         function clear_feed_articles($link, $id) {
3419
3420                 if ($id != 0) {
3421                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3422                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3423                 } else {
3424                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3425                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3426                 }
3427
3428                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
3429                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
3430
3431                 ccache_update($link, $id, $_SESSION['uid']);
3432         } // function clear_feed_articles
3433
3434         /**
3435          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
3436          *
3437          * @return string The Mozilla Firefox feed adding URL.
3438          */
3439         function add_feed_url() {
3440                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
3441
3442                 $url_path = get_self_url_prefix() .
3443                         "/backend.php?op=pref-feeds&quiet=1&method=add&feed_url=%s";
3444                 return $url_path;
3445         } // function add_feed_url
3446
3447         /**
3448          * Encrypt a password in SHA1.
3449          *
3450          * @param string $pass The password to encrypt.
3451          * @param string $login A optionnal login.
3452          * @return string The encrypted password.
3453          */
3454         function encrypt_password($pass, $login = '') {
3455                 if ($login) {
3456                         return "SHA1X:" . sha1("$login:$pass");
3457                 } else {
3458                         return "SHA1:" . sha1($pass);
3459                 }
3460         } // function encrypt_password
3461
3462
3463         function sanitize_article_content($text) {
3464                 # we don't support CDATA sections in articles, they break our own escaping
3465                 $text = preg_replace("/\[\[CDATA/", "", $text);
3466                 $text = preg_replace("/\]\]\>/", "", $text);
3467                 return $text;
3468         }
3469
3470         function load_filters($link, $feed, $owner_uid, $action_id = false) {
3471                 $filters = array();
3472
3473                 global $memcache;
3474
3475                 $obj_id = md5("FILTER:$feed:$owner_uid:$action_id");
3476
3477                 if ($memcache && $obj = $memcache->get($obj_id)) {
3478
3479                         return $obj;
3480
3481                 } else {
3482
3483                         if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
3484
3485                         $result = db_query($link, "SELECT reg_exp,
3486                                 ttrss_filter_types.name AS name,
3487                                 ttrss_filter_actions.name AS action,
3488                                 inverse,
3489                                 action_param,
3490                                 filter_param
3491                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
3492                                         enabled = true AND
3493                                         $ftype_query_part
3494                                         owner_uid = $owner_uid AND
3495                                         ttrss_filter_types.id = filter_type AND
3496                                         ttrss_filter_actions.id = action_id AND
3497                                         (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
3498
3499                         while ($line = db_fetch_assoc($result)) {
3500                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
3501                                         $filter["reg_exp"] = $line["reg_exp"];
3502                                         $filter["action"] = $line["action"];
3503                                         $filter["action_param"] = $line["action_param"];
3504                                         $filter["filter_param"] = $line["filter_param"];
3505                                         $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
3506
3507                                         array_push($filters[$line["name"]], $filter);
3508                                 }
3509
3510                         if ($memcache) $memcache->add($obj_id, $filters, 0, 3600*8);
3511
3512                         return $filters;
3513                 }
3514         }
3515
3516         function get_score_pic($score) {
3517                 if ($score > 100) {
3518                         return "score_high.png";
3519                 } else if ($score > 0) {
3520                         return "score_half_high.png";
3521                 } else if ($score < -100) {
3522                         return "score_low.png";
3523                 } else if ($score < 0) {
3524                         return "score_half_low.png";
3525                 } else {
3526                         return "score_neutral.png";
3527                 }
3528         }
3529
3530         function feed_has_icon($id) {
3531                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
3532         }
3533
3534         function init_connection($link) {
3535                 if ($link) {
3536
3537                         if (DB_TYPE == "pgsql") {
3538                                 pg_query($link, "set client_encoding = 'UTF-8'");
3539                                 pg_set_client_encoding("UNICODE");
3540                                 pg_query($link, "set datestyle = 'ISO, european'");
3541                                 pg_query($link, "set TIME ZONE 0");
3542                         } else {
3543                                 db_query($link, "SET time_zone = '+0:0'");
3544
3545                                 if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
3546                                         db_query($link, "SET NAMES " . MYSQL_CHARSET);
3547                                 }
3548                         }
3549                         return true;
3550                 } else {
3551                         print "Unable to connect to database:" . db_last_error();
3552                         return false;
3553                 }
3554         }
3555
3556         /* function ccache_zero($link, $feed_id, $owner_uid) {
3557                 db_query($link, "UPDATE ttrss_counters_cache SET
3558                         value = 0, updated = NOW() WHERE
3559                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3560         } */
3561
3562         function ccache_zero_all($link, $owner_uid) {
3563                 db_query($link, "UPDATE ttrss_counters_cache SET
3564                         value = 0 WHERE owner_uid = '$owner_uid'");
3565
3566                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
3567                         value = 0 WHERE owner_uid = '$owner_uid'");
3568         }
3569
3570         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
3571
3572                 if (!$is_cat) {
3573                         $table = "ttrss_counters_cache";
3574                 } else {
3575                         $table = "ttrss_cat_counters_cache";
3576                 }
3577
3578                 db_query($link, "DELETE FROM $table WHERE
3579                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3580
3581         }
3582
3583         function ccache_update_all($link, $owner_uid) {
3584
3585                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
3586
3587                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
3588                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3589
3590                         while ($line = db_fetch_assoc($result)) {
3591                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
3592                         }
3593
3594                         /* We have to manually include category 0 */
3595
3596                         ccache_update($link, 0, $owner_uid, true);
3597
3598                 } else {
3599                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
3600                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3601
3602                         while ($line = db_fetch_assoc($result)) {
3603                                 print ccache_update($link, $line["feed_id"], $owner_uid);
3604
3605                         }
3606
3607                 }
3608         }
3609
3610         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
3611                 $no_update = false) {
3612
3613                 if (!is_numeric($feed_id)) return;
3614
3615                 if (!$is_cat) {
3616                         $table = "ttrss_counters_cache";
3617                         if ($feed_id > 0) {
3618                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3619                                         WHERE id = '$feed_id'");
3620                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3621                         }
3622                 } else {
3623                         $table = "ttrss_cat_counters_cache";
3624                 }
3625
3626                 if (DB_TYPE == "pgsql") {
3627                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
3628                 } else if (DB_TYPE == "mysql") {
3629                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
3630                 }
3631
3632                 $result = db_query($link, "SELECT value FROM $table
3633                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
3634                         LIMIT 1");
3635
3636                 if (db_num_rows($result) == 1) {
3637                         return db_fetch_result($result, 0, "value");
3638                 } else {
3639                         if ($no_update) {
3640                                 return -1;
3641                         } else {
3642                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
3643                         }
3644                 }
3645
3646         }
3647
3648         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
3649                 $update_pcat = true) {
3650
3651                 if (!is_numeric($feed_id)) return;
3652
3653                 if (!$is_cat && $feed_id > 0) {
3654                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3655                                 WHERE id = '$feed_id'");
3656                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3657                 }
3658
3659                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
3660
3661                 /* When updating a label, all we need to do is recalculate feed counters
3662                  * because labels are not cached */
3663
3664                 if ($feed_id < 0) {
3665                         ccache_update_all($link, $owner_uid);
3666                         return;
3667                 }
3668
3669                 if (!$is_cat) {
3670                         $table = "ttrss_counters_cache";
3671                 } else {
3672                         $table = "ttrss_cat_counters_cache";
3673                 }
3674
3675                 if ($is_cat && $feed_id >= 0) {
3676                         if ($feed_id != 0) {
3677                                 $cat_qpart = "cat_id = '$feed_id'";
3678                         } else {
3679                                 $cat_qpart = "cat_id IS NULL";
3680                         }
3681
3682                         /* Recalculate counters for child feeds */
3683
3684                         $result = db_query($link, "SELECT id FROM ttrss_feeds
3685                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
3686
3687                         while ($line = db_fetch_assoc($result)) {
3688                                 ccache_update($link, $line["id"], $owner_uid, false, false);
3689                         }
3690
3691                         $result = db_query($link, "SELECT SUM(value) AS sv
3692                                 FROM ttrss_counters_cache, ttrss_feeds
3693                                 WHERE id = feed_id AND $cat_qpart AND
3694                                 ttrss_feeds.owner_uid = '$owner_uid'");
3695
3696                         $unread = (int) db_fetch_result($result, 0, "sv");
3697
3698                 } else {
3699                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
3700                 }
3701
3702                 db_query($link, "BEGIN");
3703
3704                 $result = db_query($link, "SELECT feed_id FROM $table
3705                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
3706
3707                 if (db_num_rows($result) == 1) {
3708                         db_query($link, "UPDATE $table SET
3709                                 value = '$unread', updated = NOW() WHERE
3710                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3711
3712                 } else {
3713                         db_query($link, "INSERT INTO $table
3714                                 (feed_id, value, owner_uid, updated)
3715                                 VALUES
3716                                 ($feed_id, $unread, $owner_uid, NOW())");
3717                 }
3718
3719                 db_query($link, "COMMIT");
3720
3721                 if ($feed_id > 0 && $prev_unread != $unread) {
3722
3723                         if (!$is_cat) {
3724
3725                                 /* Update parent category */
3726
3727                                 if ($update_pcat) {
3728
3729                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
3730                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
3731
3732                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
3733
3734                                         ccache_update($link, $cat_id, $owner_uid, true);
3735
3736                                 }
3737                         }
3738                 } else if ($feed_id < 0) {
3739                         ccache_update_all($link, $owner_uid);
3740                 }
3741
3742                 return $unread;
3743         }
3744
3745         /* function ccache_cleanup($link, $owner_uid) {
3746
3747                 if (DB_TYPE == "pgsql") {
3748                         db_query($link, "DELETE FROM ttrss_counters_cache AS c1 WHERE
3749                                 (SELECT count(*) FROM ttrss_counters_cache AS c2
3750                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3751                                         AND owner_uid = '$owner_uid'");
3752
3753                         db_query($link, "DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
3754                                 (SELECT count(*) FROM ttrss_cat_counters_cache AS c2
3755                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3756                                         AND owner_uid = '$owner_uid'");
3757                 } else {
3758                         db_query($link, "DELETE c1 FROM
3759                                         ttrss_counters_cache AS c1,
3760                                         ttrss_counters_cache AS c2
3761                                 WHERE
3762                                         c1.owner_uid = '$owner_uid' AND
3763                                         c1.owner_uid = c2.owner_uid AND
3764                                         c1.feed_id = c2.feed_id");
3765
3766                         db_query($link, "DELETE c1 FROM
3767                                         ttrss_cat_counters_cache AS c1,
3768                                         ttrss_cat_counters_cache AS c2
3769                                 WHERE
3770                                         c1.owner_uid = '$owner_uid' AND
3771                                         c1.owner_uid = c2.owner_uid AND
3772                                         c1.feed_id = c2.feed_id");
3773
3774                 }
3775         } */
3776
3777         function label_find_id($link, $label, $owner_uid) {
3778                 $result = db_query($link,
3779                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
3780                                 AND owner_uid = '$owner_uid' LIMIT 1");
3781
3782                 if (db_num_rows($result) == 1) {
3783                         return db_fetch_result($result, 0, "id");
3784                 } else {
3785                         return 0;
3786                 }
3787         }
3788
3789         function get_article_labels($link, $id) {
3790                 global $memcache;
3791
3792                 $obj_id = md5("LABELS:$id:" . $_SESSION["uid"]);
3793
3794                 $rv = array();
3795
3796                 if ($memcache && $obj = $memcache->get($obj_id)) {
3797                         return $obj;
3798                 } else {
3799
3800                         $result = db_query($link, "SELECT label_cache FROM
3801                                 ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
3802                                 $_SESSION["uid"]);
3803
3804                         $label_cache = db_fetch_result($result, 0, "label_cache");
3805
3806                         if ($label_cache) {
3807
3808                                 $label_cache = json_decode($label_cache, true);
3809
3810                                 if ($label_cache["no-labels"] == 1)
3811                                         return $rv;
3812                                 else
3813                                         return $label_cache;
3814                         }
3815
3816                         $result = db_query($link,
3817                                 "SELECT DISTINCT label_id,caption,fg_color,bg_color
3818                                         FROM ttrss_labels2, ttrss_user_labels2
3819                                 WHERE id = label_id
3820                                         AND article_id = '$id'
3821                                         AND owner_uid = ".$_SESSION["uid"] . "
3822                                 ORDER BY caption");
3823
3824                         while ($line = db_fetch_assoc($result)) {
3825                                 $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
3826                                         $line["bg_color"]);
3827                                 array_push($rv, $rk);
3828                         }
3829                         if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
3830
3831                         if (count($rv) > 0)
3832                                 label_update_cache($link, $id, $rv);
3833                         else
3834                                 label_update_cache($link, $id, array("no-labels" => 1));
3835                 }
3836
3837                 return $rv;
3838         }
3839
3840
3841         function label_find_caption($link, $label, $owner_uid) {
3842                 $result = db_query($link,
3843                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
3844                                 AND owner_uid = '$owner_uid' LIMIT 1");
3845
3846                 if (db_num_rows($result) == 1) {
3847                         return db_fetch_result($result, 0, "caption");
3848                 } else {
3849                         return "";
3850                 }
3851         }
3852
3853         function label_update_cache($link, $id, $labels = false, $force = false) {
3854
3855                 if ($force)
3856                         label_clear_cache($link, $id);
3857
3858                 if (!$labels)
3859                         $labels = get_article_labels($link, $id);
3860
3861                 $labels = db_escape_string(json_encode($labels));
3862
3863                 db_query($link, "UPDATE ttrss_user_entries SET
3864                         label_cache = '$labels' WHERE ref_id = '$id'");
3865
3866         }
3867
3868         function label_clear_cache($link, $id) {
3869
3870                 db_query($link, "UPDATE ttrss_user_entries SET
3871                         label_cache = '' WHERE ref_id = '$id'");
3872
3873         }
3874
3875         function label_remove_article($link, $id, $label, $owner_uid) {
3876
3877                 $label_id = label_find_id($link, $label, $owner_uid);
3878
3879                 if (!$label_id) return;
3880
3881                 $result = db_query($link,
3882                         "DELETE FROM ttrss_user_labels2
3883                         WHERE
3884                                 label_id = '$label_id' AND
3885                                 article_id = '$id'");
3886
3887                 label_clear_cache($link, $id);
3888         }
3889
3890         function label_add_article($link, $id, $label, $owner_uid) {
3891
3892                 global $memcache;
3893
3894                 if ($memcache) {
3895                         $obj_id = md5("LABELS:$id:$owner_uid");
3896                         $memcache->delete($obj_id);
3897                 }
3898
3899                 $label_id = label_find_id($link, $label, $owner_uid);
3900
3901                 if (!$label_id) return;
3902
3903                 $result = db_query($link,
3904                         "SELECT
3905                                 article_id FROM ttrss_labels2, ttrss_user_labels2
3906                         WHERE
3907                                 label_id = id AND
3908                                 label_id = '$label_id' AND
3909                                 article_id = '$id' AND owner_uid = '$owner_uid'
3910                         LIMIT 1");
3911
3912                 if (db_num_rows($result) == 0) {
3913                         db_query($link, "INSERT INTO ttrss_user_labels2
3914                                 (label_id, article_id) VALUES ('$label_id', '$id')");
3915                 }
3916
3917                 label_clear_cache($link, $id);
3918
3919         }
3920
3921         function label_remove($link, $id, $owner_uid) {
3922                 global $memcache;
3923
3924                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3925
3926                 if ($memcache) {
3927                         $obj_id = md5("LABELS:$id:$owner_uid");
3928                         $memcache->delete($obj_id);
3929                 }
3930
3931                 db_query($link, "BEGIN");
3932
3933                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
3934                         WHERE id = '$id'");
3935
3936                 $caption = db_fetch_result($result, 0, "caption");
3937
3938                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
3939                         AND owner_uid = " . $owner_uid);
3940
3941                 if (db_affected_rows($link, $result) != 0 && $caption) {
3942
3943                         /* Remove access key for the label */
3944
3945                         $ext_id = -11 - $id;
3946
3947                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
3948                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
3949
3950                         /* Disable filters that reference label being removed */
3951
3952                         db_query($link, "UPDATE ttrss_filters SET
3953                                 enabled = false WHERE action_param = '$caption'
3954                                         AND action_id = 7
3955                                         AND owner_uid = " . $owner_uid);
3956
3957                         /* Remove cached data */
3958
3959                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
3960                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
3961
3962                 }
3963
3964                 db_query($link, "COMMIT");
3965         }
3966
3967         function label_create($link, $caption) {
3968
3969                 db_query($link, "BEGIN");
3970
3971                 $result = false;
3972
3973                 $result = db_query($link, "SELECT id FROM ttrss_labels2
3974                         WHERE caption = '$caption' AND owner_uid =  ". $_SESSION["uid"]);
3975
3976                 if (db_num_rows($result) == 0) {
3977                         $result = db_query($link,
3978                                 "INSERT INTO ttrss_labels2 (caption,owner_uid)
3979                                         VALUES ('$caption', '".$_SESSION["uid"]."')");
3980
3981                         $result = db_affected_rows($link, $result) != 0;
3982                 }
3983
3984                 db_query($link, "COMMIT");
3985
3986                 return $result;
3987         }
3988
3989         function format_tags_string($tags, $id) {
3990
3991                 $tags_str = "";
3992                 $tags_nolinks_str = "";
3993
3994                 $num_tags = 0;
3995
3996                 $tag_limit = 6;
3997
3998                 $formatted_tags = array();
3999
4000                 foreach ($tags as $tag) {
4001                         $num_tags++;
4002                         $tag_escaped = str_replace("'", "\\'", $tag);
4003
4004                         if (mb_strlen($tag) > 30) {
4005                                 $tag = truncate_string($tag, 30);
4006                         }
4007
4008                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
4009
4010                         array_push($formatted_tags, $tag_str);
4011
4012                         $tmp_tags_str = implode(", ", $formatted_tags);
4013
4014                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
4015                                 break;
4016                         }
4017                 }
4018
4019                 $tags_str = implode(", ", $formatted_tags);
4020
4021                 if ($num_tags < count($tags)) {
4022                         $tags_str .= ", &hellip;";
4023                 }
4024
4025                 if ($num_tags == 0) {
4026                         $tags_str = __("no tags");
4027                 }
4028
4029                 return $tags_str;
4030
4031         }
4032
4033         function format_article_labels($labels, $id) {
4034
4035                 $labels_str = "";
4036
4037                 foreach ($labels as $l) {
4038                         $labels_str .= sprintf("<span class='hlLabelRef'
4039                                 style='color : %s; background-color : %s'>%s</span>",
4040                                         $l[2], $l[3], $l[1]);
4041                         }
4042
4043                 return $labels_str;
4044
4045         }
4046
4047         function format_article_note($id, $note) {
4048
4049                 $str = "<div class='articleNote'        onclick=\"editArticleNote($id)\">
4050                         <div class='noteEdit' onclick=\"editArticleNote($id)\">".
4051                         __('(edit note)')."</div>$note</div>";
4052
4053                 return $str;
4054         }
4055
4056         function toggle_collapse_cat($link, $cat_id, $mode) {
4057                 if ($cat_id > 0) {
4058                         $mode = bool_to_sql_bool($mode);
4059
4060                         db_query($link, "UPDATE ttrss_feed_categories SET
4061                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
4062                                 $_SESSION["uid"]);
4063                 } else {
4064                         $pref_name = '';
4065
4066                         switch ($cat_id) {
4067                         case -1:
4068                                 $pref_name = '_COLLAPSED_SPECIAL';
4069                                 break;
4070                         case -2:
4071                                 $pref_name = '_COLLAPSED_LABELS';
4072                                 break;
4073                         case 0:
4074                                 $pref_name = '_COLLAPSED_UNCAT';
4075                                 break;
4076                         }
4077
4078                         if ($pref_name) {
4079                                 if ($mode) {
4080                                         set_pref($link, $pref_name, 'true');
4081                                 } else {
4082                                         set_pref($link, $pref_name, 'false');
4083                                 }
4084                         }
4085                 }
4086         }
4087
4088         function remove_feed($link, $id, $owner_uid) {
4089
4090                 if ($id > 0) {
4091
4092                         /* save starred articles in Archived feed */
4093
4094                         db_query($link, "BEGIN");
4095
4096                         /* prepare feed if necessary */
4097
4098                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4099                                 WHERE id = '$id'");
4100
4101                         if (db_num_rows($result) == 0) {
4102                                 db_query($link, "INSERT INTO ttrss_archived_feeds
4103                                         (id, owner_uid, title, feed_url, site_url)
4104                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4105                                 WHERE id = '$id'");
4106                         }
4107
4108                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
4109                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
4110                                         marked = true AND owner_uid = $owner_uid");
4111
4112                         /* Remove access key for the feed */
4113
4114                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
4115                                 feed_id = '$id' AND owner_uid = $owner_uid");
4116
4117                         /* remove the feed */
4118
4119                         db_query($link, "DELETE FROM ttrss_feeds
4120                                         WHERE id = '$id' AND owner_uid = $owner_uid");
4121
4122                         db_query($link, "COMMIT");
4123
4124                         if (file_exists(ICONS_DIR . "/$id.ico")) {
4125                                 unlink(ICONS_DIR . "/$id.ico");
4126                         }
4127
4128                         ccache_remove($link, $id, $owner_uid);
4129
4130                 } else {
4131                         label_remove($link, -11-$id, $owner_uid);
4132                         ccache_remove($link, -11-$id, $owner_uid);
4133                 }
4134         }
4135
4136         function add_feed_category($link, $feed_cat) {
4137
4138                 if (!$feed_cat) return false;
4139
4140                 db_query($link, "BEGIN");
4141
4142                 $result = db_query($link,
4143                         "SELECT id FROM ttrss_feed_categories
4144                         WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
4145
4146                 if (db_num_rows($result) == 0) {
4147
4148                         $result = db_query($link,
4149                                 "INSERT INTO ttrss_feed_categories (owner_uid,title)
4150                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
4151
4152                         db_query($link, "COMMIT");
4153
4154                         return true;
4155                 }
4156
4157                 return false;
4158         }
4159
4160         function remove_feed_category($link, $id, $owner_uid) {
4161
4162                 db_query($link, "DELETE FROM ttrss_feed_categories
4163                         WHERE id = '$id' AND owner_uid = $owner_uid");
4164
4165                 ccache_remove($link, $id, $owner_uid, true);
4166         }
4167
4168         function archive_article($link, $id, $owner_uid) {
4169                 db_query($link, "BEGIN");
4170
4171                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4172                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
4173
4174                 if (db_num_rows($result) != 0) {
4175
4176                         /* prepare the archived table */
4177
4178                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4179
4180                         if ($feed_id) {
4181                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4182                                         WHERE id = '$feed_id'");
4183
4184                                 if (db_num_rows($result) == 0) {
4185                                         db_query($link, "INSERT INTO ttrss_archived_feeds
4186                                                 (id, owner_uid, title, feed_url, site_url)
4187                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4188                                         WHERE id = '$feed_id'");
4189                                 }
4190
4191                                 db_query($link, "UPDATE ttrss_user_entries
4192                                         SET orig_feed_id = feed_id, feed_id = NULL
4193                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4194                         }
4195                 }
4196
4197                 db_query($link, "COMMIT");
4198         }
4199
4200         function getArticleFeed($link, $id) {
4201                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4202                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4203
4204                 if (db_num_rows($result) != 0) {
4205                         return db_fetch_result($result, 0, "feed_id");
4206                 } else {
4207                         return 0;
4208                 }
4209         }
4210
4211         /**
4212          * Fixes incomplete URLs by prepending "http://".
4213          * Also replaces feed:// with http://, and
4214          * prepends a trailing slash if the url is a domain name only.
4215          *
4216          * @param string $url Possibly incomplete URL
4217          *
4218          * @return string Fixed URL.
4219          */
4220         function fix_url($url) {
4221                 if (strpos($url, '://') === false) {
4222                         $url = 'http://' . $url;
4223                 } else if (substr($url, 0, 5) == 'feed:') {
4224                         $url = 'http:' . substr($url, 5);
4225                 }
4226
4227                 //prepend slash if the URL has no slash in it
4228                 // "http://www.example" -> "http://www.example/"
4229                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
4230                         $url .= '/';
4231                 }
4232
4233                 if ($url != "http:///")
4234                         return $url;
4235                 else
4236                         return '';
4237         }
4238
4239         function validate_feed_url($url) {
4240                 $parts = parse_url($url);
4241
4242                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
4243
4244         }
4245
4246         function get_article_enclosures($link, $id) {
4247
4248                 global $memcache;
4249
4250                 $query = "SELECT * FROM ttrss_enclosures
4251                         WHERE post_id = '$id' AND content_url != ''";
4252
4253                 $obj_id = md5("ENCLOSURES:$id");
4254
4255                 $rv = array();
4256
4257                 if ($memcache && $obj = $memcache->get($obj_id)) {
4258                         $rv = $obj;
4259                 } else {
4260                         $result = db_query($link, $query);
4261
4262                         if (db_num_rows($result) > 0) {
4263                                 while ($line = db_fetch_assoc($result)) {
4264                                         array_push($rv, $line);
4265                                 }
4266                                 if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
4267                         }
4268                 }
4269
4270                 return $rv;
4271         }
4272
4273         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset) {
4274
4275                         $feeds = array();
4276
4277                         /* Labels */
4278
4279                         if ($cat_id == -4 || $cat_id == -2) {
4280                                 $counters = getLabelCounters($link, true);
4281
4282                                 foreach (array_values($counters) as $cv) {
4283
4284                                         $unread = $cv["counter"];
4285
4286                                         if ($unread || !$unread_only) {
4287
4288                                                 $row = array(
4289                                                                 "id" => $cv["id"],
4290                                                                 "title" => $cv["description"],
4291                                                                 "unread" => $cv["counter"],
4292                                                                 "cat_id" => -2,
4293                                                         );
4294
4295                                                 array_push($feeds, $row);
4296                                         }
4297                                 }
4298                         }
4299
4300                         /* Virtual feeds */
4301
4302                         if ($cat_id == -4 || $cat_id == -1) {
4303                                 foreach (array(-1, -2, -3, -4, 0) as $i) {
4304                                         $unread = getFeedUnread($link, $i);
4305
4306                                         if ($unread || !$unread_only) {
4307                                                 $title = getFeedTitle($link, $i);
4308
4309                                                 $row = array(
4310                                                                 "id" => $i,
4311                                                                 "title" => $title,
4312                                                                 "unread" => $unread,
4313                                                                 "cat_id" => -1,
4314                                                         );
4315                                                 array_push($feeds, $row);
4316                                         }
4317
4318                                 }
4319                         }
4320
4321                         /* Real feeds */
4322
4323                         if ($limit) {
4324                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
4325                         } else {
4326                                 $limit_qpart = "";
4327                         }
4328
4329                         if ($cat_id == -4 || $cat_id == -3) {
4330                                 $result = db_query($link, "SELECT
4331                                         id, feed_url, cat_id, title, ".
4332                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4333                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
4334                                                 " ORDER BY cat_id, title " . $limit_qpart);
4335                         } else {
4336
4337                                 if ($cat_id)
4338                                         $cat_qpart = "cat_id = '$cat_id'";
4339                                 else
4340                                         $cat_qpart = "cat_id IS NULL";
4341
4342                                 $result = db_query($link, "SELECT
4343                                         id, feed_url, cat_id, title, ".
4344                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4345                                                 FROM ttrss_feeds WHERE
4346                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
4347                                                 " ORDER BY cat_id, title " . $limit_qpart);
4348                         }
4349
4350                         while ($line = db_fetch_assoc($result)) {
4351
4352                                 $unread = getFeedUnread($link, $line["id"]);
4353
4354                                 $has_icon = feed_has_icon($line['id']);
4355
4356                                 if ($unread || !$unread_only) {
4357
4358                                         $row = array(
4359                                                         "feed_url" => $line["feed_url"],
4360                                                         "title" => $line["title"],
4361                                                         "id" => (int)$line["id"],
4362                                                         "unread" => (int)$unread,
4363                                                         "has_icon" => $has_icon,
4364                                                         "cat_id" => (int)$line["cat_id"],
4365                                                         "last_updated" => strtotime($line["last_updated"])
4366                                                 );
4367
4368                                         array_push($feeds, $row);
4369                                 }
4370                         }
4371
4372                 return $feeds;
4373         }
4374
4375         function api_get_headlines($link, $feed_id, $limit, $offset,
4376                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
4377                                 $include_attachments, $since_id) {
4378
4379                         /* do not rely on params below */
4380
4381                         $search = db_escape_string($_REQUEST["search"]);
4382                         $search_mode = db_escape_string($_REQUEST["search_mode"]);
4383                         $match_on = db_escape_string($_REQUEST["match_on"]);
4384
4385                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
4386                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
4387                                 $order, $offset, 0, false, $since_id);
4388
4389                         $result = $qfh_ret[0];
4390                         $feed_title = $qfh_ret[1];
4391
4392                         $headlines = array();
4393
4394                         while ($line = db_fetch_assoc($result)) {
4395                                 $is_updated = ($line["last_read"] == "" &&
4396                                         ($line["unread"] != "t" && $line["unread"] != "1"));
4397
4398                                 $tags = explode(",", $line["tag_cache"]);
4399                                 $labels = json_decode($line["label_cache"], true);
4400
4401                                 //if (!$tags) $tags = get_article_tags($link, $line["id"]);
4402                                 //if (!$labels) $labels = get_article_labels($link, $line["id"]);
4403
4404                                 $headline_row = array(
4405                                                 "id" => (int)$line["id"],
4406                                                 "unread" => sql_bool_to_bool($line["unread"]),
4407                                                 "marked" => sql_bool_to_bool($line["marked"]),
4408                                                 "published" => sql_bool_to_bool($line["published"]),
4409                                                 "updated" => strtotime($line["updated"]),
4410                                                 "is_updated" => $is_updated,
4411                                                 "title" => $line["title"],
4412                                                 "link" => $line["link"],
4413                                                 "feed_id" => $line["feed_id"],
4414                                                 "tags" => $tags,
4415                                         );
4416
4417                                         if ($include_attachments)
4418                                                 $headline_row['attachments'] = get_article_enclosures($link,
4419                                                         $line['id']);
4420
4421                                 if ($show_excerpt) {
4422                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
4423                                         $headline_row["excerpt"] = $excerpt;
4424                                 }
4425
4426                                 if ($show_content) {
4427                                         $headline_row["content"] = $line["content_preview"];
4428                                 }
4429
4430                                 // unify label output to ease parsing
4431                                 if ($labels["no-labels"] == 1) $labels = array();
4432
4433                                 $headline_row["labels"] = $labels;
4434
4435                                 array_push($headlines, $headline_row);
4436                         }
4437
4438                         return $headlines;
4439         }
4440
4441         function generate_error_feed($link, $error) {
4442                 $reply = array();
4443
4444                 $reply['headlines']['id'] = -6;
4445                 $reply['headlines']['is_cat'] = false;
4446
4447                 $reply['headlines']['toolbar'] = '';
4448                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
4449
4450                 $reply['headlines-info'] = array("count" => 0,
4451                         "vgroup_last_feed" => '',
4452                         "unread" => 0,
4453                         "disable_cache" => true);
4454
4455                 return $reply;
4456         }
4457
4458
4459         function generate_dashboard_feed($link) {
4460                 $reply = array();
4461
4462                 $reply['headlines']['id'] = -5;
4463                 $reply['headlines']['is_cat'] = false;
4464
4465                 $reply['headlines']['toolbar'] = '';
4466                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
4467
4468                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
4469
4470                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
4471                         WHERE owner_uid = " . $_SESSION['uid']);
4472
4473                 $last_updated = db_fetch_result($result, 0, "last_updated");
4474                 $last_updated = make_local_datetime($link, $last_updated, false);
4475
4476                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
4477
4478                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
4479                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
4480
4481                 $num_errors = db_fetch_result($result, 0, "num_errors");
4482
4483                 if ($num_errors > 0) {
4484                         $reply['headlines']['content'] .= "<br/>";
4485                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
4486                                 __('Some feeds have update errors (click for details)')."</a>";
4487                 }
4488                 $reply['headlines']['content'] .= "</span></p>";
4489
4490                 $reply['headlines-info'] = array("count" => 0,
4491                         "vgroup_last_feed" => '',
4492                         "unread" => 0,
4493                         "disable_cache" => true);
4494
4495                 return $reply;
4496         }
4497
4498         function save_email_address($link, $email) {
4499                 // FIXME: implement persistent storage of emails
4500
4501                 if (!$_SESSION['stored_emails'])
4502                         $_SESSION['stored_emails'] = array();
4503
4504                 if (!in_array($email, $_SESSION['stored_emails']))
4505                         array_push($_SESSION['stored_emails'], $email);
4506         }
4507
4508         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4509                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4510
4511                 $sql_is_cat = bool_to_sql_bool($is_cat);
4512
4513                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4514                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4515                         AND owner_uid = " . $owner_uid);
4516
4517                 if (db_num_rows($result) == 1) {
4518                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4519
4520                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
4521                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
4522                                 AND owner_uid = " . $owner_uid);
4523
4524                         return $key;
4525
4526                 } else {
4527                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
4528                 }
4529         }
4530
4531         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4532
4533                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4534
4535                 $sql_is_cat = bool_to_sql_bool($is_cat);
4536
4537                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4538                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4539                         AND owner_uid = " . $owner_uid);
4540
4541                 if (db_num_rows($result) == 1) {
4542                         return db_fetch_result($result, 0, "access_key");
4543                 } else {
4544                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4545
4546                         $result = db_query($link, "INSERT INTO ttrss_access_keys
4547                                 (access_key, feed_id, is_cat, owner_uid)
4548                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
4549
4550                         return $key;
4551                 }
4552                 return false;
4553         }
4554
4555         /**
4556          * Extracts RSS/Atom feed URLs from the given HTML URL.
4557          *
4558          * @param string $url HTML page URL
4559          *
4560          * @return array Array of feeds. Key is the full URL, value the title
4561          */
4562         function get_feeds_from_html($url, $login = false, $pass = false)
4563         {
4564                 $url     = fix_url($url);
4565                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
4566
4567                 libxml_use_internal_errors(true);
4568
4569                 $content = @fetch_file_contents($url, false, $login, $pass);
4570
4571                 $doc = new DOMDocument();
4572                 $doc->loadHTML($content);
4573                 $xpath = new DOMXPath($doc);
4574                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
4575                 $feedUrls = array();
4576                 foreach ($entries as $entry) {
4577                         if ($entry->hasAttribute('href')) {
4578                                 $title = $entry->getAttribute('title');
4579                                 if ($title == '') {
4580                                         $title = $entry->getAttribute('type');
4581                                 }
4582                                 $feedUrl = rewrite_relative_url(
4583                                         $baseUrl, $entry->getAttribute('href')
4584                                 );
4585                                 $feedUrls[$feedUrl] = $title;
4586                         }
4587                 }
4588                 return $feedUrls;
4589         }
4590
4591         /**
4592          * Checks if the content behind the given URL is a HTML file
4593          *
4594          * @param string $url URL to check
4595          *
4596          * @return boolean True if the URL contains HTML content
4597          */
4598         function url_is_html($url, $login = false, $pass = false) {
4599                 $content = substr(fetch_file_contents($url, false, $login, $pass), 0, 1000);
4600
4601                 if (stripos($content, '<html>') === false
4602                         && stripos($content, '<html ') === false
4603                 ) {
4604                         return false;
4605                 }
4606
4607                 return true;
4608         }
4609
4610         function print_label_select($link, $name, $value, $attributes = "") {
4611
4612                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
4613                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
4614
4615                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
4616                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
4617
4618                 while ($line = db_fetch_assoc($result)) {
4619
4620                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
4621
4622                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
4623                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
4624
4625                 }
4626
4627 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
4628
4629                 print "</select>";
4630
4631
4632         }
4633
4634         function format_article_enclosures($link, $id, $always_display_enclosures,
4635                                         $article_content) {
4636
4637                 $result = get_article_enclosures($link, $id);
4638                 $rv = '';
4639
4640                 if (count($result) > 0) {
4641
4642                         $entries_html = array();
4643                         $entries = array();
4644
4645                         foreach ($result as $line) {
4646
4647                                 $url = $line["content_url"];
4648                                 $ctype = $line["content_type"];
4649
4650                                 if (!$ctype) $ctype = __("unknown type");
4651
4652 #                               $filename = substr($url, strrpos($url, "/")+1);
4653
4654                                 $entry = format_inline_player($link, $url, $ctype);
4655
4656 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4657 #                                       $filename . " (" . $ctype . ")" . "</a>";
4658
4659                                 array_push($entries_html, $entry);
4660
4661                                 $entry = array();
4662
4663                                 $entry["type"] = $ctype;
4664                                 $entry["filename"] = $filename;
4665                                 $entry["url"] = $url;
4666
4667                                 array_push($entries, $entry);
4668                         }
4669
4670                         $rv .= "<div class=\"postEnclosures\">";
4671
4672                         if (!get_pref($link, "STRIP_IMAGES")) {
4673                                 if ($always_display_enclosures ||
4674                                                         !preg_match("/<img/i", $article_content)) {
4675
4676                                         foreach ($entries as $entry) {
4677
4678                                                 if (preg_match("/image/", $entry["type"]) ||
4679                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
4680
4681                                                                 $rv .= "<p><img
4682                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
4683                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
4684                                                 }
4685                                         }
4686                                 }
4687                         }
4688
4689                         if (count($entries) == 1) {
4690                                 $rv .= __("Attachment:") . " ";
4691                         } else {
4692                                 $rv .= __("Attachments:") . " ";
4693                         }
4694
4695                         $rv .= join(", ", $entries_html);
4696
4697                         $rv .= "</div>";
4698                 }
4699
4700                 return $rv;
4701         }
4702
4703         function getLastArticleId($link) {
4704                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
4705                         WHERE owner_uid = " . $_SESSION["uid"]);
4706
4707                 if (db_num_rows($result) == 1) {
4708                         return db_fetch_result($result, 0, "id");
4709                 } else {
4710                         return -1;
4711                 }
4712         }
4713
4714         function build_url($parts) {
4715                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
4716         }
4717
4718         /**
4719          * Converts a (possibly) relative URL to a absolute one.
4720          *
4721          * @param string $url     Base URL (i.e. from where the document is)
4722          * @param string $rel_url Possibly relative URL in the document
4723          *
4724          * @return string Absolute URL
4725          */
4726         function rewrite_relative_url($url, $rel_url) {
4727                 if (strpos($rel_url, "://") !== false) {
4728                         return $rel_url;
4729                 } else if (strpos($rel_url, "/") === 0)
4730                 {
4731                         $parts = parse_url($url);
4732                         $parts['path'] = $rel_url;
4733
4734                         return build_url($parts);
4735
4736                 } else {
4737                         $parts = parse_url($url);
4738                         if (!isset($parts['path'])) {
4739                                 $parts['path'] = '/';
4740                         }
4741                         $dir = $parts['path'];
4742                         if (substr($dir, -1) !== '/') {
4743                                 $dir = dirname($parts['path']);
4744                                 $dir !== '/' && $dir .= '/';
4745                         }
4746                         $parts['path'] = $dir . $rel_url;
4747
4748                         return build_url($parts);
4749                 }
4750         }
4751
4752         function sphinx_search($query, $offset = 0, $limit = 30) {
4753                 require_once 'lib/sphinxapi.php';
4754
4755                 $sphinxClient = new SphinxClient();
4756
4757                 $sphinxClient->SetServer('localhost', 9312);
4758                 $sphinxClient->SetConnectTimeout(1);
4759
4760                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
4761                         'feed_title' => 20));
4762
4763                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
4764                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
4765                 $sphinxClient->SetLimits($offset, $limit, 1000);
4766                 $sphinxClient->SetArrayResult(false);
4767                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
4768
4769                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
4770
4771                 $ids = array();
4772
4773                 if (is_array($result['matches'])) {
4774                         foreach (array_keys($result['matches']) as $int_id) {
4775                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
4776                                 array_push($ids, $ref_id);
4777                         }
4778                 }
4779
4780                 return $ids;
4781         }
4782
4783         function cleanup_tags($link, $days = 14, $limit = 1000) {
4784
4785                 if (DB_TYPE == "pgsql") {
4786                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
4787                 } else if (DB_TYPE == "mysql") {
4788                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
4789                 }
4790
4791                 $tags_deleted = 0;
4792
4793                 while ($limit > 0) {
4794                         $limit_part = 500;
4795
4796                         $query = "SELECT ttrss_tags.id AS id
4797                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
4798                                 WHERE post_int_id = int_id AND $interval_query AND
4799                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
4800
4801                         $result = db_query($link, $query);
4802
4803                         $ids = array();
4804
4805                         while ($line = db_fetch_assoc($result)) {
4806                                 array_push($ids, $line['id']);
4807                         }
4808
4809                         if (count($ids) > 0) {
4810                                 $ids = join(",", $ids);
4811                                 print ".";
4812
4813                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
4814                                 $tags_deleted += db_affected_rows($link, $tmp_result);
4815                         } else {
4816                                 break;
4817                         }
4818
4819                         $limit -= $limit_part;
4820                 }
4821
4822                 print "\n";
4823
4824                 return $tags_deleted;
4825         }
4826
4827         function print_user_stylesheet($link) {
4828                 $value = get_pref($link, 'USER_STYLESHEET');
4829
4830                 if ($value) {
4831                         print "<style type=\"text/css\">";
4832                         print str_replace("<br/>", "\n", $value);
4833                         print "</style>";
4834                 }
4835
4836         }
4837
4838         function rewrite_urls($line) {
4839                 global $url_regex;
4840
4841                 $urls = null;
4842
4843                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
4844                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
4845
4846                 return $result;
4847         }
4848
4849         function filter_to_sql($filter) {
4850                 $query = "";
4851
4852                 if (DB_TYPE == "pgsql")
4853                         $reg_qpart = "~";
4854                 else
4855                         $reg_qpart = "REGEXP";
4856
4857                 switch ($filter["type"]) {
4858                         case "title":
4859                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
4860                                         $filter['reg_exp'] . "')";
4861                                 break;
4862                         case "content":
4863                                 $query = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
4864                                         $filter['reg_exp'] . "')";
4865                                 break;
4866                         case "both":
4867                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
4868                                         $filter['reg_exp'] . "') OR LOWER(" .
4869                                         "ttrss_entries.content) $reg_qpart LOWER('" . $filter['reg_exp'] . "')";
4870                                 break;
4871                         case "tag":
4872                                 $query = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
4873                                         $filter['reg_exp'] . "')";
4874                                 break;
4875                         case "link":
4876                                 $query = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
4877                                         $filter['reg_exp'] . "')";
4878                                 break;
4879                         case "date":
4880
4881                                 if ($filter["filter_param"] == "before")
4882                                         $cmp_qpart = "<";
4883                                 else
4884                                         $cmp_qpart = ">=";
4885
4886                                 $timestamp = date("Y-m-d H:N:s", strtotime($filter["reg_exp"]));
4887                                 $query = "ttrss_entries.date_entered $cmp_qpart '$timestamp'";
4888                                 break;
4889                         case "author":
4890                                 $query = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
4891                                         $filter['reg_exp'] . "')";
4892                                 break;
4893                 }
4894
4895                 if ($filter["inverse"])
4896                         $query = "NOT ($query)";
4897
4898                 if ($query) {
4899                         if (DB_TYPE == "pgsql") {
4900                                 $query = " ($query) AND ttrss_entries.date_entered > NOW() - INTERVAL '14 days'";
4901                         } else {
4902                                 $query = " ($query) AND ttrss_entries.date_entered > DATE_SUB(NOW(), INTERVAL 14 DAY)";
4903                         }
4904                         $query .= " AND ";
4905                 }
4906
4907
4908                 return $query;
4909         }
4910
4911         // Status codes:
4912         // -1  - never connected
4913         // 0   - no data received
4914         // 1   - data received successfully
4915         // 2   - did not receive valid data
4916         // >10 - server error, code + 10 (e.g. 16 means server error 6)
4917
4918         function get_linked_feeds($link, $instance_id = false) {
4919                 if ($instance_id)
4920                         $instance_qpart = "id = '$instance_id' AND ";
4921                 else
4922                         $instance_qpart = "";
4923
4924                 if (DB_TYPE == "pgsql") {
4925                         $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'";
4926                 } else {
4927                         $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)";
4928                 }
4929
4930                 $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances
4931                         WHERE $instance_qpart $date_qpart ORDER BY last_connected");
4932
4933                 while ($line = db_fetch_assoc($result)) {
4934                         $id = $line['id'];
4935
4936                         _debug("Updating: " . $line['access_url'] . " ($id)");
4937
4938                         $fetch_url = $line['access_url'] . '/public.php?op=fbexport';
4939                         $post_query = 'key=' . $line['access_key'];
4940
4941                         $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
4942
4943                         // try doing it the old way
4944                         if (!$feeds) {
4945                                 $fetch_url = $line['access_url'] . '/backend.php?op=fbexport';
4946                                 $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
4947                         }
4948
4949                         if ($feeds) {
4950                                 $feeds = json_decode($feeds, true);
4951
4952                                 if ($feeds) {
4953                                         if ($feeds['error']) {
4954                                                 $status = $feeds['error']['code'] + 10;
4955                                         } else {
4956                                                 $status = 1;
4957
4958                                                 if (count($feeds['feeds']) > 0) {
4959
4960                                                         db_query($link, "DELETE FROM ttrss_linked_feeds
4961                                                                 WHERE instance_id = '$id'");
4962
4963                                                         foreach ($feeds['feeds'] as $feed) {
4964                                                                 $feed_url = db_escape_string($feed['feed_url']);
4965                                                                 $title = db_escape_string($feed['title']);
4966                                                                 $subscribers = db_escape_string($feed['subscribers']);
4967                                                                 $site_url = db_escape_string($feed['site_url']);
4968
4969                                                                 db_query($link, "INSERT INTO ttrss_linked_feeds
4970                                                                         (feed_url, site_url, title, subscribers, instance_id, created, updated)
4971                                                                 VALUES
4972                                                                         ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())");
4973                                                         }
4974                                                 } else {
4975                                                         // received 0 feeds, this might indicate that
4976                                                         // the instance on the other hand is rebuilding feedbrowser cache
4977                                                         // we will try again later
4978
4979                                                         // TODO: maybe perform expiration based on updated here?
4980                                                 }
4981
4982                                                 _debug("Processed " . count($feeds['feeds']) . " feeds.");
4983                                         }
4984                                 } else {
4985                                         $status = 2;
4986                                 }
4987
4988                         } else {
4989                                 $status = 0;
4990                         }
4991
4992                         _debug("Status: $status");
4993
4994                         db_query($link, "UPDATE ttrss_linked_instances SET
4995                                 last_status_out = '$status', last_connected = NOW() WHERE id = '$id'");
4996
4997                 }
4998         }
4999
5000         function make_feed_browser($link, $search, $limit, $mode = 1) {
5001
5002                 $owner_uid = $_SESSION["uid"];
5003                 $rv = '';
5004
5005                 if ($search) {
5006                         $search_qpart = "AND (UPPER(feed_url) LIKE UPPER('%$search%') OR
5007                                                 UPPER(title) LIKE UPPER('%$search%'))";
5008                 } else {
5009                         $search_qpart = "";
5010                 }
5011
5012                 if ($mode == 1) {
5013                         /* $result = db_query($link, "SELECT feed_url, subscribers FROM
5014                          ttrss_feedbrowser_cache WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5015                         WHERE tf.feed_url = ttrss_feedbrowser_cache.feed_url
5016                         AND owner_uid = '$owner_uid') $search_qpart
5017                         ORDER BY subscribers DESC LIMIT $limit"); */
5018
5019                         $result = db_query($link, "SELECT feed_url, site_url, title, SUM(subscribers) AS subscribers FROM
5020                                                 (SELECT feed_url, site_url, title, subscribers FROM ttrss_feedbrowser_cache UNION ALL
5021                                                         SELECT feed_url, site_url, title, subscribers FROM ttrss_linked_feeds) AS qqq
5022                                                 WHERE
5023                                                         (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5024                                                                 WHERE tf.feed_url = qqq.feed_url
5025                                                                         AND owner_uid = '$owner_uid') $search_qpart
5026                                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT $limit");
5027
5028                 } else if ($mode == 2) {
5029                         $result = db_query($link, "SELECT *,
5030                                                 (SELECT COUNT(*) FROM ttrss_user_entries WHERE
5031                                                         orig_feed_id = ttrss_archived_feeds.id) AS articles_archived
5032                                                 FROM
5033                                                         ttrss_archived_feeds
5034                                                 WHERE
5035                                                 (SELECT COUNT(*) FROM ttrss_feeds
5036                                                         WHERE ttrss_feeds.feed_url = ttrss_archived_feeds.feed_url AND
5037                                                                 owner_uid = '$owner_uid') = 0   AND
5038                                                 owner_uid = '$owner_uid' $search_qpart
5039                                                 ORDER BY id DESC LIMIT $limit");
5040                 }
5041
5042                 $feedctr = 0;
5043
5044                 while ($line = db_fetch_assoc($result)) {
5045
5046                         if ($mode == 1) {
5047
5048                                 $feed_url = htmlspecialchars($line["feed_url"]);
5049                                 $site_url = htmlspecialchars($line["site_url"]);
5050                                 $subscribers = $line["subscribers"];
5051
5052                                 $check_box = "<input onclick='toggleSelectListRow2(this)'
5053                                                         dojoType=\"dijit.form.CheckBox\"
5054                                                         type=\"checkbox\" \">";
5055
5056                                 $class = ($feedctr % 2) ? "even" : "odd";
5057
5058                                 $site_url = "<a target=\"_blank\"
5059                                                         href=\"$site_url\">
5060                                                         <span class=\"fb_feedTitle\">".
5061                                 htmlspecialchars($line["title"])."</span></a>";
5062
5063                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5064                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5065                                                         style='vertical-align : middle'></a>";
5066
5067                                 $rv .= "<li>$check_box $feed_url $site_url".
5068                                                         "&nbsp;<span class='subscribers'>($subscribers)</span></li>";
5069
5070                         } else if ($mode == 2) {
5071                                 $feed_url = htmlspecialchars($line["feed_url"]);
5072                                 $site_url = htmlspecialchars($line["site_url"]);
5073                                 $title = htmlspecialchars($line["title"]);
5074
5075                                 $check_box = "<input onclick='toggleSelectListRow2(this)' dojoType=\"dijit.form.CheckBox\"
5076                                                         type=\"checkbox\">";
5077
5078                                 $class = ($feedctr % 2) ? "even" : "odd";
5079
5080                                 if ($line['articles_archived'] > 0) {
5081                                         $archived = sprintf(__("%d archived articles"), $line['articles_archived']);
5082                                         $archived = "&nbsp;<span class='subscribers'>($archived)</span>";
5083                                 } else {
5084                                         $archived = '';
5085                                 }
5086
5087                                 $site_url = "<a target=\"_blank\"
5088                                                         href=\"$site_url\">
5089                                                         <span class=\"fb_feedTitle\">".
5090                                 htmlspecialchars($line["title"])."</span></a>";
5091
5092                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5093                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5094                                                         style='vertical-align : middle'></a>";
5095
5096
5097                                 $rv .= "<li id=\"FBROW-".$line["id"]."\">".
5098                                                         "$check_box $feed_url $site_url $archived</li>";
5099                         }
5100
5101                         ++$feedctr;
5102                 }
5103
5104                 if ($feedctr == 0) {
5105                         $rv .= "<li style=\"text-align : center\"><p>".__('No feeds found.')."</p></li>";
5106                 }
5107
5108                 return $rv;
5109         }
5110
5111 ?>