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                                                 $salt = substr(bin2hex(get_random_bytes(125)), 0, 250);
 705                                                 $pwd_hash = encrypt_password($password, $salt, true);
 706
 707                                                 $query2 = "INSERT INTO ttrss_users
 708                                                                 (login,access_level,last_login,created,pwd_hash,salt)
 709                                                                 VALUES ('$login', 0, null, NOW(), '$pwd_hash','$salt')";
 710                                                 db_query($link, $query2);
 711                                         }
 712                                 }
 713
 714                         } else if (get_schema_version($link) > 87) {
 715                                 $result = db_query($link, "SELECT salt FROM ttrss_users WHERE
 716                                         login = '$login'");
 717
 718                                 if (db_num_rows($result) != 1) {
 719                                         return false;
 720                                 }
 721
 722                                 $salt = db_fetch_result($result, 0, "salt");
 723
 724                                 if ($salt == "") {
 725
 726                                         $query = "SELECT id,login,access_level,pwd_hash
 727                             FROM ttrss_users WHERE
 728                                                 login = '$login' AND (pwd_hash = '$pwd_hash1' OR
 729                                                 pwd_hash = '$pwd_hash2')";
 730
 731                                         // verify and upgrade password to new salt base
 732
 733                                         $result = db_query($link, $query);
 734
 735                                         if (db_num_rows($result) == 1) {
 736                                                 // upgrade password to MODE2
 737
 738                                                 $salt = substr(bin2hex(get_random_bytes(125)), 0, 250);
 739                                                 $pwd_hash = encrypt_password($password, $salt, true);
 740
 741                                                 db_query($link, "UPDATE ttrss_users SET
 742                                                         pwd_hash = '$pwd_hash', salt = '$salt' WHERE login = '$login'");
 743
 744                                                 $query = "SELECT id,login,access_level,pwd_hash
 745                                     FROM ttrss_users WHERE
 746                                                         login = '$login' AND pwd_hash = '$pwd_hash'";
 747
 748                                         } else {
 749                                                 return false;
 750                                         }
 751
 752                                 } else {
 753
 754                                         $pwd_hash = encrypt_password($password, $salt, true);
 755
 756                                         $query = "SELECT id,login,access_level,pwd_hash
 757                                  FROM ttrss_users WHERE
 758                                                 login = '$login' AND pwd_hash = '$pwd_hash'";
 759
 760                                 }
 761                         } else {
 762                                 $query = "SELECT id,login,access_level,pwd_hash
 763                          FROM ttrss_users WHERE
 764                                         login = '$login' AND (pwd_hash = '$pwd_hash1' OR
 765                                                 pwd_hash = '$pwd_hash2')";
 766                         }
 767
 768                         $result = db_query($link, $query);
 769
 770                         if (db_num_rows($result) == 1) {
 771                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
 772                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
 773                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 774                                 $_SESSION["csrf_token"] = sha1(uniqid(rand(), true));
 775
 776                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 777                                         $_SESSION["uid"]);
 778
 779
 780                                 // LemonLDAP can send user informations via HTTP HEADER
 781                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER){
 782                                         // update user name
 783                                         $fullname = $_SERVER['HTTP_USER_NAME'] ? $_SERVER['HTTP_USER_NAME'] : $_SERVER['AUTHENTICATE_CN'];
 784                                         if ($fullname){
 785                                                 $fullname = db_escape_string($fullname);
 786                                                 db_query($link, "UPDATE ttrss_users SET full_name = '$fullname' WHERE id = " .
 787                                                         $_SESSION["uid"]);
 788                                         }
 789                                         // update user mail
 790                                         $email = $_SERVER['HTTP_USER_MAIL'] ? $_SERVER['HTTP_USER_MAIL'] : $_SERVER['AUTHENTICATE_MAIL'];
 791                                         if ($email){
 792                                                 $email = db_escape_string($email);
 793                                                 db_query($link, "UPDATE ttrss_users SET email = '$email' WHERE id = " .
 794                                                         $_SESSION["uid"]);
 795                                         }
 796                                 }
 797
 798                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 799                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
 800
 801                                 $_SESSION["last_version_check"] = time();
 802
 803                                 initialize_user_prefs($link, $_SESSION["uid"]);
 804
 805                                 return true;
 806                         }
 807
 808                         return false;
 809
 810                 } else {
 811
 812                         $_SESSION["uid"] = 1;
 813                         $_SESSION["name"] = "admin";
 814
 815                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 816
 817                         initialize_user_prefs($link, $_SESSION["uid"]);
 818
 819                         return true;
 820                 }
 821         }
 822
 823         function make_password($length = 8) {
 824
 825                 $password = "";
 826                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
 827
 828         $i = 0;
 829
 830                 while ($i < $length) {
 831                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 832
 833                         if (!strstr($password, $char)) {
 834                                 $password .= $char;
 835                                 $i++;
 836                         }
 837                 }
 838                 return $password;
 839         }
 840
 841         // this is called after user is created to initialize default feeds, labels
 842         // or whatever else
 843
 844         // user preferences are checked on every login, not here
 845
 846         function initialize_user($link, $uid) {
 847
 848                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 849                         values ('$uid', 'Tiny Tiny RSS: New Releases',
 850                         'http://tt-rss.org/releases.rss')");
 851
 852                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 853                         values ('$uid', 'Tiny Tiny RSS: Forum',
 854                                 'http://tt-rss.org/forum/rss.php')");
 855         }
 856
 857         function logout_user() {
 858                 session_destroy();
 859                 if (isset($_COOKIE[session_name()])) {
 860                    setcookie(session_name(), '', time()-42000, '/');
 861                 }
 862         }
 863
 864         function validate_csrf($csrf_token) {
 865                 return $csrf_token == $_SESSION['csrf_token'];
 866         }
 867
 868         function validate_session($link) {
 869                 if (SINGLE_USER_MODE) return true;
 870
 871                 $check_ip = $_SESSION['ip_address'];
 872
 873                 switch (SESSION_CHECK_ADDRESS) {
 874                 case 0:
 875                         $check_ip = '';
 876                         break;
 877                 case 1:
 878                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
 879                         break;
 880                 case 2:
 881                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
 882                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
 883                         break;
 884                 };
 885
 886                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) {
 887                         $_SESSION["login_error_msg"] =
 888                                 __("Session failed to validate (incorrect IP)");
 889                         return false;
 890                 }
 891
 892                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
 893                         return false;
 894
 895                 if ($_SESSION["uid"]) {
 896
 897                         $result = db_query($link,
 898                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
 899
 900                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
 901
 902                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
 903                                 return false;
 904                         }
 905                 }
 906
 907 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
 908
 909                         //print_r($_SESSION);
 910
 911                         if (time() > $_SESSION["cookie_lifetime"]) {
 912                                 return false;
 913                         }
 914                 } */
 915
 916                 return true;
 917         }
 918
 919         function login_sequence($link, $mobile = false) {
 920                 $_SESSION["prefs_cache"] = array();
 921
 922                 if (!SINGLE_USER_MODE) {
 923
 924                         $login_action = $_POST["login_action"];
 925
 926                         # try to authenticate user if called from login form
 927                         if ($login_action == "do_login") {
 928                                 $login = db_escape_string($_POST["login"]);
 929                                 $password = $_POST["password"];
 930                                 $remember_me = $_POST["remember_me"];
 931
 932                                 if (authenticate_user($link, $login, $password)) {
 933                                         $_POST["password"] = "";
 934
 935                                         $_SESSION["language"] = $_POST["language"];
 936                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 937                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
 938
 939                                         if ($_POST["profile"]) {
 940
 941                                                 $profile = db_escape_string($_POST["profile"]);
 942
 943                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
 944                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
 945
 946                                                 if (db_num_rows($result) != 0) {
 947                                                         $_SESSION["profile"] = $profile;
 948                                                         $_SESSION["prefs_cache"] = array();
 949                                                 }
 950                                         }
 951
 952                                         if ($_REQUEST['return']) {
 953                                                 header("Location: " . $_REQUEST['return']);
 954                                         } else {
 955                                                 header("Location: " . $_SERVER["REQUEST_URI"]);
 956                                         }
 957
 958                                         exit;
 959
 960                                         return;
 961                                 } else {
 962                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
 963                                 }
 964                         }
 965
 966                         if (!$_SESSION["uid"] || !validate_session($link)) {
 967
 968                                 if (get_remote_user($link) && AUTO_LOGIN) {
 969                                     authenticate_user($link, get_remote_user($link), null);
 970                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 971                                 } else {
 972                                     render_login_form($link, $mobile);
 973                                     //header("Location: login.php");
 974                                     exit;
 975                                 }
 976                         } else {
 977                                 /* bump login timestamp */
 978                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 979                                         $_SESSION["uid"]);
 980
 981                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
 982                                         setcookie("ttrss_lang", $_SESSION["language"],
 983                                                 time() + SESSION_COOKIE_LIFETIME);
 984                                 }
 985
 986                                 // try to remove possible duplicates from feed counter cache
 987 //                              ccache_cleanup($link, $_SESSION["uid"]);
 988                         }
 989
 990                 } else {
 991                         return authenticate_user($link, "admin", null);
 992                 }
 993         }
 994
 995         function truncate_string($str, $max_len, $suffix = '&hellip;') {
 996                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
 997                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
 998                 } else {
 999                         return $str;
1000                 }
1001         }
1002
1003         function theme_image($link, $filename) {
1004                 if ($link) {
1005                         $theme_path = get_user_theme_path($link);
1006
1007                         if ($theme_path && is_file($theme_path.$filename)) {
1008                                 return $theme_path.$filename;
1009                         } else {
1010                                 return $filename;
1011                         }
1012                 } else {
1013                         return $filename;
1014                 }
1015         }
1016
1017         function get_user_theme($link) {
1018
1019                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
1020                         $theme_name = get_pref($link, "_THEME_ID");
1021                         if (is_dir("themes/$theme_name")) {
1022                                 return $theme_name;
1023                         } else {
1024                                 return '';
1025                         }
1026                 } else {
1027                         return '';
1028                 }
1029
1030         }
1031
1032         function get_user_theme_path($link) {
1033                 $theme_path = '';
1034
1035                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
1036                         $theme_name = get_pref($link, "_THEME_ID");
1037
1038                         if ($theme_name && is_dir("themes/$theme_name")) {
1039                                 $theme_path = "themes/$theme_name/";
1040                         } else {
1041                                 $theme_name = '';
1042                         }
1043                 } else {
1044                         $theme_path = '';
1045                 }
1046
1047                 if ($theme_path) {
1048                         if (is_file("$theme_path/theme.ini")) {
1049                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
1050                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
1051                                         return $theme_path;
1052                                 }
1053                         }
1054                 }
1055                 return '';
1056         }
1057
1058         function get_user_theme_options($link) {
1059                 $t = get_user_theme_path($link);
1060
1061                 if ($t) {
1062                         if (is_file("$t/theme.ini")) {
1063                                 $ini = parse_ini_file("$t/theme.ini", true);
1064                                 if ($ini['theme']['version']) {
1065                                         return $ini['theme']['options'];
1066                                 }
1067                         }
1068                 }
1069                 return '';
1070         }
1071
1072         function print_theme_includes($link) {
1073
1074                 $t = get_user_theme_path($link);
1075                 $time = time();
1076
1077                 if ($t) {
1078                         print "<link rel=\"stylesheet\" type=\"text/css\"
1079                                 href=\"$t/theme.css?$time \">";
1080                         if (file_exists("$t/theme.js")) {
1081                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
1082                                         </script>";
1083                         }
1084                 }
1085         }
1086
1087         function get_all_themes() {
1088                 $themes = glob("themes/*");
1089
1090                 asort($themes);
1091
1092                 $rv = array();
1093
1094                 foreach ($themes as $t) {
1095                         if (is_file("$t/theme.ini")) {
1096                                 $ini = parse_ini_file("$t/theme.ini", true);
1097                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
1098                                                         !$ini['theme']['disabled']) {
1099                                         $entry = array();
1100                                         $entry["path"] = $t;
1101                                         $entry["base"] = basename($t);
1102                                         $entry["name"] = $ini['theme']['name'];
1103                                         $entry["version"] = $ini['theme']['version'];
1104                                         $entry["author"] = $ini['theme']['author'];
1105                                         $entry["options"] = $ini['theme']['options'];
1106                                         array_push($rv, $entry);
1107                                 }
1108                         }
1109                 }
1110
1111                 return $rv;
1112         }
1113
1114         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
1115
1116                 try {
1117                         $source_tz = new DateTimeZone($source_tz);
1118                 } catch (Exception $e) {
1119                         $source_tz = new DateTimeZone('UTC');
1120                 }
1121
1122                 try {
1123                         $dest_tz = new DateTimeZone($dest_tz);
1124                 } catch (Exception $e) {
1125                         $dest_tz = new DateTimeZone('UTC');
1126                 }
1127
1128                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
1129                 return $dt->format('U') + $dest_tz->getOffset($dt);
1130         }
1131
1132         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
1133                                         $no_smart_dt = false) {
1134
1135                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1136                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
1137
1138                 global $utc_tz;
1139                 global $tz_offset;
1140
1141                 # We store date in UTC internally
1142                 $dt = new DateTime($timestamp, $utc_tz);
1143
1144                 if ($tz_offset == -1) {
1145
1146                         $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
1147
1148                         try {
1149                                 $user_tz = new DateTimeZone($user_tz_string);
1150                         } catch (Exception $e) {
1151                                 $user_tz = $utc_tz;
1152                         }
1153
1154                         $tz_offset = $user_tz->getOffset($dt);
1155                 }
1156
1157                 $user_timestamp = $dt->format('U') + $tz_offset;
1158
1159                 if (!$no_smart_dt) {
1160                         return smart_date_time($link, $user_timestamp,
1161                                 $tz_offset, $owner_uid);
1162                 } else {
1163                         if ($long)
1164                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
1165                         else
1166                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
1167
1168                         return date($format, $user_timestamp);
1169                 }
1170         }
1171
1172         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
1173                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1174
1175                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
1176                         return date("G:i", $timestamp);
1177                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
1178                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
1179                         return date($format, $timestamp);
1180                 } else {
1181                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
1182                         return date($format, $timestamp);
1183                 }
1184         }
1185
1186         function sql_bool_to_bool($s) {
1187                 if ($s == "t" || $s == "1" || $s == "true") {
1188                         return true;
1189                 } else {
1190                         return false;
1191                 }
1192         }
1193
1194         function bool_to_sql_bool($s) {
1195                 if ($s) {
1196                         return "true";
1197                 } else {
1198                         return "false";
1199                 }
1200         }
1201
1202         // Session caching removed due to causing wrong redirects to upgrade
1203         // script when get_schema_version() is called on an obsolete session
1204         // created on a previous schema version.
1205         function get_schema_version($link, $nocache = false) {
1206                 global $schema_version;
1207
1208                 if (!$schema_version) {
1209                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
1210                         $version = db_fetch_result($result, 0, "schema_version");
1211                         $schema_version = $version;
1212                         return $version;
1213                 } else {
1214                         return $schema_version;
1215                 }
1216         }
1217
1218         function sanity_check($link) {
1219                 require_once 'errors.php';
1220
1221                 $error_code = 0;
1222                 $schema_version = get_schema_version($link, true);
1223
1224                 if ($schema_version != SCHEMA_VERSION) {
1225                         $error_code = 5;
1226                 }
1227
1228                 if (DB_TYPE == "mysql") {
1229                         $result = db_query($link, "SELECT true", false);
1230                         if (db_num_rows($result) != 1) {
1231                                 $error_code = 10;
1232                         }
1233                 }
1234
1235                 if (db_escape_string("testTEST") != "testTEST") {
1236                         $error_code = 12;
1237                 }
1238
1239                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1240         }
1241
1242         function file_is_locked($filename) {
1243                 if (function_exists('flock')) {
1244                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1245                         if ($fp) {
1246                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1247                                         flock($fp, LOCK_UN);
1248                                         fclose($fp);
1249                                         return false;
1250                                 }
1251                                 fclose($fp);
1252                                 return true;
1253                         } else {
1254                                 return false;
1255                         }
1256                 }
1257                 return true; // consider the file always locked and skip the test
1258         }
1259
1260         function make_lockfile($filename) {
1261                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1262
1263                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1264                         if (function_exists('posix_getpid')) {
1265                                 fwrite($fp, posix_getpid() . "\n");
1266                         }
1267                         return $fp;
1268                 } else {
1269                         return false;
1270                 }
1271         }
1272
1273         function make_stampfile($filename) {
1274                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1275
1276                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1277                         fwrite($fp, time() . "\n");
1278                         flock($fp, LOCK_UN);
1279                         fclose($fp);
1280                         return true;
1281                 } else {
1282                         return false;
1283                 }
1284         }
1285
1286         function sql_random_function() {
1287                 if (DB_TYPE == "mysql") {
1288                         return "RAND()";
1289                 } else {
1290                         return "RANDOM()";
1291                 }
1292         }
1293
1294         function catchup_feed($link, $feed, $cat_view, $owner_uid = false) {
1295
1296                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1297
1298                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1299
1300                         if (is_numeric($feed)) {
1301                                 if ($cat_view) {
1302
1303                                         if ($feed >= 0) {
1304
1305                                                 if ($feed > 0) {
1306                                                         $cat_qpart = "cat_id = '$feed'";
1307                                                 } else {
1308                                                         $cat_qpart = "cat_id IS NULL";
1309                                                 }
1310
1311                                                 $tmp_result = db_query($link, "SELECT id
1312                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = $owner_uid");
1313
1314                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
1315
1316                                                         $tmp_feed = $tmp_line["id"];
1317
1318                                                         db_query($link, "UPDATE ttrss_user_entries
1319                                                                 SET unread = false,last_read = NOW()
1320                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = $owner_uid");
1321                                                 }
1322                                         } else if ($feed == -2) {
1323
1324                                                 db_query($link, "UPDATE ttrss_user_entries
1325                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1326                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
1327                                                         AND unread = true AND owner_uid = $owner_uid");
1328                                         }
1329
1330                                 } else if ($feed > 0) {
1331
1332                                         db_query($link, "UPDATE ttrss_user_entries
1333                                                         SET unread = false,last_read = NOW()
1334                                                         WHERE feed_id = '$feed' AND owner_uid = $owner_uid");
1335
1336                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
1337
1338                                         if ($feed == -1) {
1339                                                 db_query($link, "UPDATE ttrss_user_entries
1340                                                         SET unread = false,last_read = NOW()
1341                                                         WHERE marked = true AND owner_uid = $owner_uid");
1342                                         }
1343
1344                                         if ($feed == -2) {
1345                                                 db_query($link, "UPDATE ttrss_user_entries
1346                                                         SET unread = false,last_read = NOW()
1347                                                         WHERE published = true AND owner_uid = $owner_uid");
1348                                         }
1349
1350                                         if ($feed == -3) {
1351
1352                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
1353
1354                                                 if (DB_TYPE == "pgsql") {
1355                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
1356                                                 } else {
1357                                                         $match_part = "updated > DATE_SUB(NOW(),
1358                                                                 INTERVAL $intl HOUR) ";
1359                                                 }
1360
1361                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
1362                                                         ttrss_user_entries WHERE $match_part AND
1363                                                         unread = true AND
1364                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
1365                                                         owner_uid = $owner_uid");
1366
1367                                                 $affected_ids = array();
1368
1369                                                 while ($line = db_fetch_assoc($result)) {
1370                                                         array_push($affected_ids, $line["id"]);
1371                                                 }
1372
1373                                                 catchupArticlesById($link, $affected_ids, 0);
1374                                         }
1375
1376                                         if ($feed == -4) {
1377                                                 db_query($link, "UPDATE ttrss_user_entries
1378                                                         SET unread = false,last_read = NOW()
1379                                                         WHERE owner_uid = $owner_uid");
1380                                         }
1381
1382                                 } else if ($feed < -10) { // label
1383
1384                                         $label_id = -$feed - 11;
1385
1386                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
1387                                                 SET unread = false, last_read = NOW()
1388                                                         WHERE label_id = '$label_id' AND unread = true
1389                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
1390
1391                                 }
1392
1393                                 ccache_update($link, $feed, $owner_uid, $cat_view);
1394
1395                         } else { // tag
1396                                 db_query($link, "BEGIN");
1397
1398                                 $tag_name = db_escape_string($feed);
1399
1400                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
1401                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
1402
1403                                 while ($line = db_fetch_assoc($result)) {
1404                                         db_query($link, "UPDATE ttrss_user_entries SET
1405                                                 unread = false, last_read = NOW()
1406                                                 WHERE int_id = " . $line["post_int_id"]);
1407                                 }
1408                                 db_query($link, "COMMIT");
1409                         }
1410         }
1411
1412         function getAllCounters($link, $omode = "flc", $active_feed = false) {
1413
1414                 if (!$omode) $omode = "flc";
1415
1416                 $data = getGlobalCounters($link);
1417
1418                 $data = array_merge($data, getVirtCounters($link));
1419
1420                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
1421                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
1422                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
1423                 if (strchr($omode, "c")) $data = array_merge($data, getCategoryCounters($link));
1424
1425                 return $data;
1426         }
1427
1428         function getCategoryTitle($link, $cat_id) {
1429
1430                 if ($cat_id == -1) {
1431                         return __("Special");
1432                 } else if ($cat_id == -2) {
1433                         return __("Labels");
1434                 } else {
1435
1436                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
1437                                 id = '$cat_id'");
1438
1439                         if (db_num_rows($result) == 1) {
1440                                 return db_fetch_result($result, 0, "title");
1441                         } else {
1442                                 return "Uncategorized";
1443                         }
1444                 }
1445         }
1446
1447
1448         function getCategoryCounters($link) {
1449                 $ret_arr = array();
1450
1451                 /* Labels category */
1452
1453                 $cv = array("id" => -2, "kind" => "cat",
1454                         "counter" => getCategoryUnread($link, -2));
1455
1456                 array_push($ret_arr, $cv);
1457
1458                 $age_qpart = getMaxAgeSubquery();
1459
1460                 $result = db_query($link, "SELECT id AS cat_id, value AS unread
1461                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
1462                         WHERE ttrss_cat_counters_cache.feed_id = id AND
1463                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1464
1465                 while ($line = db_fetch_assoc($result)) {
1466                         $line["cat_id"] = (int) $line["cat_id"];
1467
1468                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
1469                                 "counter" => $line["unread"]);
1470
1471                         array_push($ret_arr, $cv);
1472                 }
1473
1474                 /* Special case: NULL category doesn't actually exist in the DB */
1475
1476                 $cv = array("id" => 0, "kind" => "cat",
1477                         "counter" => ccache_find($link, 0, $_SESSION["uid"], true));
1478
1479                 array_push($ret_arr, $cv);
1480
1481                 return $ret_arr;
1482         }
1483
1484         function getCategoryUnread($link, $cat, $owner_uid = false) {
1485
1486                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1487
1488                 if ($cat >= 0) {
1489
1490                         if ($cat != 0) {
1491                                 $cat_query = "cat_id = '$cat'";
1492                         } else {
1493                                 $cat_query = "cat_id IS NULL";
1494                         }
1495
1496                         $age_qpart = getMaxAgeSubquery();
1497
1498                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
1499                                         AND owner_uid = " . $owner_uid);
1500
1501                         $cat_feeds = array();
1502                         while ($line = db_fetch_assoc($result)) {
1503                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
1504                         }
1505
1506                         if (count($cat_feeds) == 0) return 0;
1507
1508                         $match_part = implode(" OR ", $cat_feeds);
1509
1510                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
1511                                 FROM ttrss_user_entries,ttrss_entries
1512                                 WHERE   unread = true AND ($match_part) AND id = ref_id
1513                                 AND $age_qpart AND owner_uid = " . $owner_uid);
1514
1515                         $unread = 0;
1516
1517                         # this needs to be rewritten
1518                         while ($line = db_fetch_assoc($result)) {
1519                                 $unread += $line["unread"];
1520                         }
1521
1522                         return $unread;
1523                 } else if ($cat == -1) {
1524                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
1525                 } else if ($cat == -2) {
1526
1527                         $result = db_query($link, "
1528                                 SELECT COUNT(unread) AS unread FROM
1529                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
1530                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
1531                                         ttrss_labels2.owner_uid = '$owner_uid'
1532                                         AND unread = true AND feed_id = ttrss_feeds.id
1533                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
1534
1535                         $unread = db_fetch_result($result, 0, "unread");
1536
1537                         return $unread;
1538
1539                 }
1540         }
1541
1542         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
1543                 if (DB_TYPE == "pgsql") {
1544                         return "ttrss_entries.date_updated >
1545                                 NOW() - INTERVAL '$days days'";
1546                 } else {
1547                         return "ttrss_entries.date_updated >
1548                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
1549                 }
1550         }
1551
1552         function getFeedUnread($link, $feed, $is_cat = false) {
1553                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
1554         }
1555
1556         function getLabelUnread($link, $label_id, $owner_uid = false) {
1557                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1558
1559                 $result = db_query($link, "
1560                         SELECT COUNT(unread) AS unread FROM
1561                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
1562                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
1563                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
1564                                 AND unread = true AND feed_id = ttrss_feeds.id
1565                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
1566
1567                 if (db_num_rows($result) != 0) {
1568                         return db_fetch_result($result, 0, "unread");
1569                 } else {
1570                         return 0;
1571                 }
1572         }
1573
1574         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
1575                 $owner_uid = false) {
1576
1577                 $n_feed = (int) $feed;
1578
1579                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1580
1581                 if ($unread_only) {
1582                         $unread_qpart = "unread = true";
1583                 } else {
1584                         $unread_qpart = "true";
1585                 }
1586
1587                 $age_qpart = getMaxAgeSubquery();
1588
1589                 if ($is_cat) {
1590                         return getCategoryUnread($link, $n_feed, $owner_uid);
1591                 } if ($feed != "0" && $n_feed == 0) {
1592
1593                         $feed = db_escape_string($feed);
1594
1595                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
1596                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1597                                         AND ref_id = id AND $age_qpart
1598                                         AND $unread_qpart)) AS count FROM ttrss_tags
1599                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1600                         return db_fetch_result($result, 0, "count");
1601
1602                 } else if ($n_feed == -1) {
1603                         $match_part = "marked = true";
1604                 } else if ($n_feed == -2) {
1605                         $match_part = "published = true";
1606                 } else if ($n_feed == -3) {
1607                         $match_part = "unread = true AND score >= 0";
1608
1609                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
1610
1611                         if (DB_TYPE == "pgsql") {
1612                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
1613                         } else {
1614                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1615                         }
1616                 } else if ($n_feed == -4) {
1617                         $match_part = "true";
1618                 } else if ($n_feed >= 0) {
1619
1620                         if ($n_feed != 0) {
1621                                 $match_part = "feed_id = '$n_feed'";
1622                         } else {
1623                                 $match_part = "feed_id IS NULL";
1624                         }
1625
1626                 } else if ($feed < -10) {
1627
1628                         $label_id = -$feed - 11;
1629
1630                         return getLabelUnread($link, $label_id, $owner_uid);
1631
1632                 }
1633
1634                 if ($match_part) {
1635
1636                         if ($n_feed != 0) {
1637                                 $from_qpart = "ttrss_user_entries,ttrss_feeds,ttrss_entries";
1638                                 $feeds_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
1639                         } else {
1640                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
1641                                 $feeds_qpart = '';
1642                         }
1643
1644                         $query = "SELECT count(int_id) AS unread
1645                                 FROM $from_qpart WHERE
1646                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
1647                                 $age_qpart AND
1648                                 $feeds_qpart
1649                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1650
1651                         $result = db_query($link, $query);
1652
1653                 } else {
1654
1655                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
1656                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1657                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1658                                 AND $unread_qpart AND $age_qpart AND
1659                                         ttrss_tags.owner_uid = " . $owner_uid);
1660                 }
1661
1662                 $unread = db_fetch_result($result, 0, "unread");
1663
1664                 return $unread;
1665         }
1666
1667         function getGlobalUnread($link, $user_id = false) {
1668
1669                 if (!$user_id) {
1670                         $user_id = $_SESSION["uid"];
1671                 }
1672
1673                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1674                         WHERE owner_uid = '$user_id' AND feed_id > 0");
1675
1676                 $c_id = db_fetch_result($result, 0, "c_id");
1677
1678                 return $c_id;
1679         }
1680
1681         function getGlobalCounters($link, $global_unread = -1) {
1682                 $ret_arr = array();
1683
1684                 if ($global_unread == -1) {
1685                         $global_unread = getGlobalUnread($link);
1686                 }
1687
1688                 $cv = array("id" => "global-unread",
1689                         "counter" => $global_unread);
1690
1691                 array_push($ret_arr, $cv);
1692
1693                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
1694                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1695
1696                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1697
1698                 $cv = array("id" => "subscribed-feeds",
1699                         "counter" => $subscribed_feeds);
1700
1701                 array_push($ret_arr, $cv);
1702
1703                 return $ret_arr;
1704         }
1705
1706         function getTagCounters($link) {
1707
1708                 $ret_arr = array();
1709
1710                 $age_qpart = getMaxAgeSubquery();
1711
1712                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
1713                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1714                                 AND ref_id = id AND $age_qpart
1715                                 AND unread = true)) AS count FROM ttrss_tags
1716                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
1717                                 ORDER BY count DESC LIMIT 55");
1718
1719                 $tags = array();
1720
1721                 while ($line = db_fetch_assoc($result)) {
1722                         $tags[$line["tag_name"]] += $line["count"];
1723                 }
1724
1725                 foreach (array_keys($tags) as $tag) {
1726                         $unread = $tags[$tag];
1727                         $tag = htmlspecialchars($tag);
1728
1729                         $cv = array("id" => $tag,
1730                                 "kind" => "tag",
1731                                 "counter" => $unread);
1732
1733                         array_push($ret_arr, $cv);
1734                 }
1735
1736                 return $ret_arr;
1737         }
1738
1739         function getVirtCounters($link) {
1740
1741                 $ret_arr = array();
1742
1743                 for ($i = 0; $i >= -4; $i--) {
1744
1745                         $count = getFeedUnread($link, $i);
1746
1747                         $cv = array("id" => $i,
1748                                 "counter" => $count);
1749
1750 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1751 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
1752
1753                         array_push($ret_arr, $cv);
1754                 }
1755
1756                 return $ret_arr;
1757         }
1758
1759         function getLabelCounters($link, $descriptions = false) {
1760
1761                 $ret_arr = array();
1762
1763                 $age_qpart = getMaxAgeSubquery();
1764
1765                 $owner_uid = $_SESSION["uid"];
1766
1767                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
1768                         WHERE owner_uid = '$owner_uid'");
1769
1770                 while ($line = db_fetch_assoc($result)) {
1771
1772                         $id = -$line["id"] - 11;
1773
1774                         $label_name = $line["caption"];
1775                         $count = getFeedUnread($link, $id);
1776
1777                         $cv = array("id" => $id,
1778                                 "counter" => $count);
1779
1780                         if ($descriptions)
1781                                 $cv["description"] = $label_name;
1782
1783 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1784 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
1785
1786                         array_push($ret_arr, $cv);
1787                 }
1788
1789                 return $ret_arr;
1790         }
1791
1792         function getFeedCounters($link, $active_feed = false) {
1793
1794                 $ret_arr = array();
1795
1796                 $age_qpart = getMaxAgeSubquery();
1797
1798                 $query = "SELECT ttrss_feeds.id,
1799                                 ttrss_feeds.title,
1800                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1801                                 last_error, value AS count
1802                         FROM ttrss_feeds, ttrss_counters_cache
1803                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1804                                 AND ttrss_counters_cache.feed_id = id";
1805
1806                 $result = db_query($link, $query);
1807                 $fctrs_modified = false;
1808
1809                 while ($line = db_fetch_assoc($result)) {
1810
1811                         $id = $line["id"];
1812                         $count = $line["count"];
1813                         $last_error = htmlspecialchars($line["last_error"]);
1814
1815                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
1816
1817                         $has_img = feed_has_icon($id);
1818
1819                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1820                                 $last_updated = '';
1821
1822                         $cv = array("id" => $id,
1823                                 "updated" => $last_updated,
1824                                 "counter" => $count,
1825                                 "has_img" => (int) $has_img);
1826
1827                         if ($last_error)
1828                                 $cv["error"] = $last_error;
1829
1830 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1831 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
1832
1833                         if ($active_feed && $id == $active_feed)
1834                                 $cv["title"] = truncate_string($line["title"], 30);
1835
1836                         array_push($ret_arr, $cv);
1837
1838                 }
1839
1840                 return $ret_arr;
1841         }
1842
1843         function get_pgsql_version($link) {
1844                 $result = db_query($link, "SELECT version() AS version");
1845                 $version = explode(" ", db_fetch_result($result, 0, "version"));
1846                 return $version[1];
1847         }
1848
1849         /**
1850          * @return integer Status code:
1851          *                 0 - OK, Feed already exists
1852          *                 1 - OK, Feed added
1853          *                 2 - Invalid URL
1854          *                 3 - URL content is HTML, no feeds available
1855          *                 4 - URL content is HTML which contains multiple feeds.
1856          *                     Here you should call extractfeedurls in rpc-backend
1857          *                     to get all possible feeds.
1858          *                 5 - Couldn't download the URL content.
1859          */
1860         function subscribe_to_feed($link, $url, $cat_id = 0,
1861                         $auth_login = '', $auth_pass = '', $need_auth = false) {
1862
1863                 require_once "include/rssfuncs.php";
1864
1865                 $url = fix_url($url);
1866
1867                 if (!$url || !validate_feed_url($url)) return 2;
1868
1869                 $update_method = 0;
1870
1871                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
1872                         WHERE id = ".$_SESSION['uid']);
1873
1874                 $has_oauth = db_fetch_result($result, 0, 'twitter_oauth');
1875
1876                 if (!$need_auth || !$has_oauth || strpos($url, '://api.twitter.com') === false) {
1877                         if (!fetch_file_contents($url, false, $auth_login, $auth_pass)) return 5;
1878
1879                         if (url_is_html($url, $auth_login, $auth_pass)) {
1880                                 $feedUrls = get_feeds_from_html($url, $auth_login, $auth_pass);
1881                                 if (count($feedUrls) == 0) {
1882                                         return 3;
1883                                 } else if (count($feedUrls) > 1) {
1884                                         return 4;
1885                                 }
1886                                 //use feed url as new URL
1887                                 $url = key($feedUrls);
1888                         }
1889
1890                         } else {
1891                                 if (!fetch_twitter_rss($link, $url, $_SESSION['uid']))
1892                                         return 5;
1893
1894                                 $update_method = 3;
1895                         }
1896                 if ($cat_id == "0" || !$cat_id) {
1897                         $cat_qpart = "NULL";
1898                 } else {
1899                         $cat_qpart = "'$cat_id'";
1900                 }
1901
1902                 $result = db_query($link,
1903                         "SELECT id FROM ttrss_feeds
1904                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1905
1906                 if (db_num_rows($result) == 0) {
1907                         $result = db_query($link,
1908                                 "INSERT INTO ttrss_feeds
1909                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
1910                                 VALUES ('".$_SESSION["uid"]."', '$url',
1911                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
1912
1913                         $result = db_query($link,
1914                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1915                                         AND owner_uid = " . $_SESSION["uid"]);
1916
1917                         $feed_id = db_fetch_result($result, 0, "id");
1918
1919                         if ($feed_id) {
1920                                 update_rss_feed($link, $feed_id, true);
1921                         }
1922
1923                         return 1;
1924                 } else {
1925                         return 0;
1926                 }
1927         }
1928
1929         function print_feed_select($link, $id, $default_id = "",
1930                 $attributes = "", $include_all_feeds = true) {
1931
1932                 print "<select id=\"$id\" name=\"$id\" $attributes>";
1933                 if ($include_all_feeds) {
1934                         print "<option value=\"0\">".__('All feeds')."</option>";
1935                 }
1936
1937                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
1938                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1939
1940                 if (db_num_rows($result) > 0 && $include_all_feeds) {
1941                         print "<option disabled>--------</option>";
1942                 }
1943
1944                 while ($line = db_fetch_assoc($result)) {
1945                         if ($line["id"] == $default_id) {
1946                                 $is_selected = "selected=\"1\"";
1947                         } else {
1948                                 $is_selected = "";
1949                         }
1950
1951                         $title = truncate_string(htmlspecialchars($line["title"]), 40);
1952
1953                         printf("<option $is_selected value='%d'>%s</option>",
1954                                 $line["id"], $title);
1955                 }
1956
1957                 print "</select>";
1958         }
1959
1960         function print_feed_cat_select($link, $id, $default_id = "",
1961                 $attributes = "", $include_all_cats = true) {
1962
1963                 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1964
1965                 if ($include_all_cats) {
1966                         print "<option value=\"0\">".__('Uncategorized')."</option>";
1967                 }
1968
1969                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
1970                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1971
1972                 if (db_num_rows($result) > 0 && $include_all_cats) {
1973                         print "<option disabled=\"1\">--------</option>";
1974                 }
1975
1976                 while ($line = db_fetch_assoc($result)) {
1977                         if ($line["id"] == $default_id) {
1978                                 $is_selected = "selected=\"1\"";
1979                         } else {
1980                                 $is_selected = "";
1981                         }
1982
1983                         if ($line["title"])
1984                                 printf("<option $is_selected value='%d'>%s</option>",
1985                                         $line["id"], htmlspecialchars($line["title"]));
1986                 }
1987
1988 #               print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
1989
1990                 print "</select>";
1991         }
1992
1993         function checkbox_to_sql_bool($val) {
1994                 return ($val == "on") ? "true" : "false";
1995         }
1996
1997         function getFeedCatTitle($link, $id) {
1998                 if ($id == -1) {
1999                         return __("Special");
2000                 } else if ($id < -10) {
2001                         return __("Labels");
2002                 } else if ($id > 0) {
2003                         $result = db_query($link, "SELECT ttrss_feed_categories.title
2004                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
2005                                         cat_id = ttrss_feed_categories.id");
2006                         if (db_num_rows($result) == 1) {
2007                                 return db_fetch_result($result, 0, "title");
2008                         } else {
2009                                 return __("Uncategorized");
2010                         }
2011                 } else {
2012                         return "getFeedCatTitle($id) failed";
2013                 }
2014
2015         }
2016
2017         function getFeedIcon($id) {
2018                 switch ($id) {
2019                 case 0:
2020                         return "images/archive.png";
2021                         break;
2022                 case -1:
2023                         return "images/mark_set.png";
2024                         break;
2025                 case -2:
2026                         return "images/pub_set.png";
2027                         break;
2028                 case -3:
2029                         return "images/fresh.png";
2030                         break;
2031                 case -4:
2032                         return "images/tag.png";
2033                         break;
2034                 default:
2035                         if ($id < -10) {
2036                                 return "images/label.png";
2037                         } else {
2038                                 if (file_exists(ICONS_DIR . "/$id.ico"))
2039                                         return ICONS_URL . "/$id.ico";
2040                         }
2041                         break;
2042                 }
2043         }
2044
2045         function getFeedTitle($link, $id) {
2046                 if ($id == -1) {
2047                         return __("Starred articles");
2048                 } else if ($id == -2) {
2049                         return __("Published articles");
2050                 } else if ($id == -3) {
2051                         return __("Fresh articles");
2052                 } else if ($id == -4) {
2053                         return __("All articles");
2054                 } else if ($id === 0 || $id === "0") {
2055                         return __("Archived articles");
2056                 } else if ($id < -10) {
2057                         $label_id = -$id - 11;
2058                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
2059                         if (db_num_rows($result) == 1) {
2060                                 return db_fetch_result($result, 0, "caption");
2061                         } else {
2062                                 return "Unknown label ($label_id)";
2063                         }
2064
2065                 } else if (is_numeric($id) && $id > 0) {
2066                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
2067                         if (db_num_rows($result) == 1) {
2068                                 return db_fetch_result($result, 0, "title");
2069                         } else {
2070                                 return "Unknown feed ($id)";
2071                         }
2072                 } else {
2073                         return $id;
2074                 }
2075         }
2076
2077         function make_init_params($link) {
2078                 $params = array();
2079
2080                 $params["theme"] = get_user_theme($link);
2081                 $params["theme_options"] = get_user_theme_options($link);
2082
2083                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
2084                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
2085                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
2086                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
2087
2088                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
2089                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
2090                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
2091                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
2092
2093                                  $params[strtolower($param)] = (int) get_pref($link, $param);
2094                  }
2095
2096                 $params["icons_url"] = ICONS_URL;
2097                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
2098                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
2099                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
2100                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
2101                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
2102
2103                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
2104                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2105
2106                 $max_feed_id = db_fetch_result($result, 0, "mid");
2107                 $num_feeds = db_fetch_result($result, 0, "nf");
2108
2109                 $params["max_feed_id"] = (int) $max_feed_id;
2110                 $params["num_feeds"] = (int) $num_feeds;
2111
2112                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
2113
2114                 $params["csrf_token"] = $_SESSION["csrf_token"];
2115
2116                 return $params;
2117         }
2118
2119         function make_runtime_info($link) {
2120                 $data = array();
2121
2122                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
2123                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2124
2125                 $max_feed_id = db_fetch_result($result, 0, "mid");
2126                 $num_feeds = db_fetch_result($result, 0, "nf");
2127
2128                 $data["max_feed_id"] = (int) $max_feed_id;
2129                 $data["num_feeds"] = (int) $num_feeds;
2130
2131                 $data['last_article_id'] = getLastArticleId($link);
2132                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
2133
2134                 if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
2135
2136                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
2137
2138                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
2139
2140                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
2141
2142                                 if ($stamp) {
2143                                         $stamp_delta = time() - $stamp;
2144
2145                                         if ($stamp_delta > 1800) {
2146                                                 $stamp_check = 0;
2147                                         } else {
2148                                                 $stamp_check = 1;
2149                                                 $_SESSION["daemon_stamp_check"] = time();
2150                                         }
2151
2152                                         $data['daemon_stamp_ok'] = $stamp_check;
2153
2154                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
2155
2156                                         $data['daemon_stamp'] = $stamp_fmt;
2157                                 }
2158                         }
2159                 }
2160
2161                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
2162                                 $new_version_details = @check_for_update($link);
2163
2164                                 $data['new_version_available'] = (int) ($new_version_details != false);
2165
2166                                 $_SESSION["last_version_check"] = time();
2167                 }
2168
2169                 return $data;
2170         }
2171
2172         function search_to_sql($link, $search, $match_on) {
2173
2174                 $search_query_part = "";
2175
2176                 $keywords = explode(" ", $search);
2177                 $query_keywords = array();
2178
2179                 foreach ($keywords as $k) {
2180                         if (strpos($k, "-") === 0) {
2181                                 $k = substr($k, 1);
2182                                 $not = "NOT";
2183                         } else {
2184                                 $not = "";
2185                         }
2186
2187                         $commandpair = explode(":", mb_strtolower($k), 2);
2188
2189                         if ($commandpair[0] == "note" && $commandpair[1]) {
2190
2191                                 if ($commandpair[1] == "true")
2192                                         array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
2193                                 else
2194                                         array_push($query_keywords, "($not (note IS NULL OR note = ''))");
2195
2196                         } else if ($commandpair[0] == "star" && $commandpair[1]) {
2197
2198                                 if ($commandpair[1] == "true")
2199                                         array_push($query_keywords, "($not (marked = true))");
2200                                 else
2201                                         array_push($query_keywords, "($not (marked = false))");
2202
2203                         } else if ($commandpair[0] == "pub" && $commandpair[1]) {
2204
2205                                 if ($commandpair[1] == "true")
2206                                         array_push($query_keywords, "($not (published = true))");
2207                                 else
2208                                         array_push($query_keywords, "($not (published = false))");
2209
2210                         } else if (strpos($k, "@") === 0) {
2211
2212                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
2213                                 $orig_ts = strtotime(substr($k, 1));
2214                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
2215
2216                                 //$k = date("Y-m-d", strtotime(substr($k, 1)));
2217
2218                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
2219                         } else if ($match_on == "both") {
2220                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
2221                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
2222                         } else if ($match_on == "title") {
2223                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
2224                         } else if ($match_on == "content") {
2225                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
2226                         }
2227                 }
2228
2229                 $search_query_part = implode("AND", $query_keywords);
2230
2231                 return $search_query_part;
2232         }
2233
2234
2235         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0) {
2236
2237                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2238
2239                 $ext_tables_part = "";
2240
2241                         if ($search) {
2242
2243                                 if (SPHINX_ENABLED) {
2244                                         $ids = join(",", @sphinx_search($search, 0, 500));
2245
2246                                         if ($ids)
2247                                                 $search_query_part = "ref_id IN ($ids) AND ";
2248                                         else
2249                                                 $search_query_part = "ref_id = -1 AND ";
2250
2251                                 } else {
2252                                         $search_query_part = search_to_sql($link, $search, $match_on);
2253                                         $search_query_part .= " AND ";
2254                                 }
2255
2256                         } else {
2257                                 $search_query_part = "";
2258                         }
2259
2260                         if ($filter) {
2261                                 $filter_query_part = filter_to_sql($filter);
2262                         } else {
2263                                 $filter_query_part = "";
2264                         }
2265
2266                         if ($since_id) {
2267                                 $since_id_part = "ttrss_entries.id > $since_id AND ";
2268                         } else {
2269                                 $since_id_part = "";
2270                         }
2271
2272                         $view_query_part = "";
2273
2274                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
2275                                 if ($search) {
2276                                         $view_query_part = " ";
2277                                 } else if ($feed != -1) {
2278                                         $unread = getFeedUnread($link, $feed, $cat_view);
2279                                         if ($unread > 0) {
2280                                                 $view_query_part = " unread = true AND ";
2281                                         }
2282                                 }
2283                         }
2284
2285                         if ($view_mode == "marked") {
2286                                 $view_query_part = " marked = true AND ";
2287                         }
2288
2289                         if ($view_mode == "published") {
2290                                 $view_query_part = " published = true AND ";
2291                         }
2292
2293                         if ($view_mode == "unread") {
2294                                 $view_query_part = " unread = true AND ";
2295                         }
2296
2297                         if ($view_mode == "updated") {
2298                                 $view_query_part = " (last_read is null and unread = false) AND ";
2299                         }
2300
2301                         if ($limit > 0) {
2302                                 $limit_query_part = "LIMIT " . $limit;
2303                         }
2304
2305                         $vfeed_query_part = "";
2306
2307                         // override query strategy and enable feed display when searching globally
2308                         if ($search && $search_mode == "all_feeds") {
2309                                 $query_strategy_part = "ttrss_entries.id > 0";
2310                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2311                         /* tags */
2312                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
2313                                 $query_strategy_part = "ttrss_entries.id > 0";
2314                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
2315                                         id = feed_id) as feed_title,";
2316                         } else if ($feed > 0 && $search && $search_mode == "this_cat") {
2317
2318                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2319
2320                                 $tmp_result = false;
2321
2322                                 if ($cat_view) {
2323                                         $tmp_result = db_query($link, "SELECT id
2324                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
2325                                 } else {
2326                                         $tmp_result = db_query($link, "SELECT id
2327                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
2328                                                         WHERE id = '$feed') AND id != '$feed'");
2329                                 }
2330
2331                                 $cat_siblings = array();
2332
2333                                 if (db_num_rows($tmp_result) > 0) {
2334                                         while ($p = db_fetch_assoc($tmp_result)) {
2335                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
2336                                         }
2337
2338                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
2339                                                 $feed, implode(" OR ", $cat_siblings));
2340
2341                                 } else {
2342                                         $query_strategy_part = "ttrss_entries.id > 0";
2343                                 }
2344
2345                         } else if ($feed > 0) {
2346
2347                                 if ($cat_view) {
2348
2349                                         if ($feed > 0) {
2350                                                 $query_strategy_part = "cat_id = '$feed'";
2351                                         } else {
2352                                                 $query_strategy_part = "cat_id IS NULL";
2353                                         }
2354
2355                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2356
2357                                 } else {
2358                                         $query_strategy_part = "feed_id = '$feed'";
2359                                 }
2360                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
2361                                 $query_strategy_part = "feed_id IS NULL";
2362                         } else if ($feed == 0 && $cat_view) { // uncategorized
2363                                 $query_strategy_part = "cat_id IS NULL";
2364                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2365                         } else if ($feed == -1) { // starred virtual feed
2366                                 $query_strategy_part = "marked = true";
2367                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2368                         } else if ($feed == -2) { // published virtual feed OR labels category
2369
2370                                 if (!$cat_view) {
2371                                         $query_strategy_part = "published = true";
2372                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2373                                 } else {
2374                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2375
2376                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2377
2378                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
2379                                                 ttrss_user_labels2.article_id = ref_id";
2380
2381                                 }
2382
2383                         } else if ($feed == -3) { // fresh virtual feed
2384                                 $query_strategy_part = "unread = true AND score >= 0";
2385
2386                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2387
2388                                 if (DB_TYPE == "pgsql") {
2389                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2390                                 } else {
2391                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2392                                 }
2393
2394                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2395                         } else if ($feed == -4) { // all articles virtual feed
2396                                 $query_strategy_part = "true";
2397                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2398                         } else if ($feed <= -10) { // labels
2399                                 $label_id = -$feed - 11;
2400
2401                                 $query_strategy_part = "label_id = '$label_id' AND
2402                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
2403                                         ttrss_user_labels2.article_id = ref_id";
2404
2405                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2406                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2407
2408                         } else {
2409                                 $query_strategy_part = "id > 0"; // dumb
2410                         }
2411
2412                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
2413                                 $date_sort_field = "updated";
2414                         } else {
2415                                 $date_sort_field = "date_entered";
2416                         }
2417
2418                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
2419                                 $order_by = "$date_sort_field";
2420                         } else {
2421                                 $order_by = "$date_sort_field DESC";
2422                         }
2423
2424                         if ($view_mode != "noscores") {
2425                                 $order_by = "score DESC, $order_by";
2426                         }
2427
2428                         if ($override_order) {
2429                                 $order_by = $override_order;
2430                         }
2431
2432                         $feed_title = "";
2433
2434                         if ($search) {
2435                                 $feed_title = "Search results";
2436                         } else {
2437                                 if ($cat_view) {
2438                                         $feed_title = getCategoryTitle($link, $feed);
2439                                 } else {
2440                                         if (is_numeric($feed) && $feed > 0) {
2441                                                 $result = db_query($link, "SELECT title,site_url,last_error
2442                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
2443
2444                                                 $feed_title = db_fetch_result($result, 0, "title");
2445                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
2446                                                 $last_error = db_fetch_result($result, 0, "last_error");
2447                                         } else {
2448                                                 $feed_title = getFeedTitle($link, $feed);
2449                                         }
2450                                 }
2451                         }
2452
2453                         $content_query_part = "content as content_preview,";
2454
2455                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2456
2457                                 if ($feed >= 0) {
2458                                         $feed_kind = "Feeds";
2459                                 } else {
2460                                         $feed_kind = "Labels";
2461                                 }
2462
2463                                 if ($limit_query_part) {
2464                                         $offset_query_part = "OFFSET $offset";
2465                                 }
2466
2467                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
2468                                         if (!$override_order) {
2469                                                 $order_by = "ttrss_feeds.title, $order_by";
2470                                         }
2471                                 }
2472
2473                                 if ($feed != "0") {
2474                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
2475                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2476
2477                                 } else {
2478                                         $from_qpart = "ttrss_entries,ttrss_user_entries$ext_tables_part
2479                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
2480                                 }
2481
2482                                 $query = "SELECT DISTINCT
2483                                                 date_entered,
2484                                                 guid,
2485                                                 ttrss_entries.id,ttrss_entries.title,
2486                                                 updated,
2487                                                 label_cache,
2488                                                 tag_cache,
2489                                                 always_display_enclosures,
2490                                                 site_url,
2491                                                 note,
2492                                                 num_comments,
2493                                                 comments,
2494                                                 int_id,
2495                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
2496                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
2497                                                 $vfeed_query_part
2498                                                 $content_query_part
2499                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
2500                                                 author,score
2501                                         FROM
2502                                                 $from_qpart
2503                                         WHERE
2504                                         $feed_check_qpart
2505                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2506                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
2507                                         $search_query_part
2508                                         $filter_query_part
2509                                         $view_query_part
2510                                         $since_id_part
2511                                         $query_strategy_part ORDER BY $order_by
2512                                         $limit_query_part $offset_query_part";
2513
2514                                 if ($_REQUEST["debug"]) print $query;
2515
2516                                 $result = db_query($link, $query);
2517
2518                         } else {
2519                                 // browsing by tag
2520
2521                                 $select_qpart = "SELECT DISTINCT " .
2522                                                                 "date_entered," .
2523                                                                 "guid," .
2524                                                                 "note," .
2525                                                                 "ttrss_entries.id as id," .
2526                                                                 "title," .
2527                                                                 "updated," .
2528                                                                 "unread," .
2529                                                                 "feed_id," .
2530                                                                 "orig_feed_id," .
2531                                                                 "marked," .
2532                                                                 "num_comments, " .
2533                                                                 "comments, " .
2534                                                                 "tag_cache," .
2535                                                                 "label_cache," .
2536                                                                 "link," .
2537                                                                 "last_read," .
2538                                                                 SUBSTRING_FOR_DATE . "(last_read,1,19) as last_read_noms," .
2539                                                                 $since_id_part .
2540                                                                 $vfeed_query_part .
2541                                                                 $content_query_part .
2542                                                                 SUBSTRING_FOR_DATE . "(updated,1,19) as updated_noms," .
2543                                                                 "score ";
2544
2545                                 $feed_kind = "Tags";
2546                                 $all_tags = explode(",", $feed);
2547                                 if ($search_mode == 'any') {
2548                                         $tag_sql = "tag_name in (" . implode(", ", array_map("db_quote", $all_tags)) . ")";
2549                                         $from_qpart = " FROM ttrss_entries,ttrss_user_entries,ttrss_tags ";
2550                                         $where_qpart = " WHERE " .
2551                                                                    "ref_id = ttrss_entries.id AND " .
2552                                                                    "ttrss_user_entries.owner_uid = $owner_uid AND " .
2553                                                                    "post_int_id = int_id AND $tag_sql AND " .
2554                                                                    $view_query_part .
2555                                                                    $search_query_part .
2556                                                                    $query_strategy_part . " ORDER BY $order_by " .
2557                                                                    $limit_query_part;
2558
2559                                 } else {
2560                                         $i = 1;
2561                                         $sub_selects = array();
2562                                         $sub_ands = array();
2563                                         foreach ($all_tags as $term) {
2564                                                 array_push($sub_selects, "(SELECT post_int_id from ttrss_tags WHERE tag_name = " . db_quote($term) . " AND owner_uid = $owner_uid) as A$i");
2565                                                 $i++;
2566                                         }
2567                                         if ($i > 2) {
2568                                                 $x = 1;
2569                                                 $y = 2;
2570                                                 do {
2571                                                         array_push($sub_ands, "A$x.post_int_id = A$y.post_int_id");
2572                                                         $x++;
2573                                                         $y++;
2574                                                 } while ($y < $i);
2575                                         }
2576                                         array_push($sub_ands, "A1.post_int_id = ttrss_user_entries.int_id and ttrss_user_entries.owner_uid = $owner_uid");
2577                                         array_push($sub_ands, "ttrss_user_entries.ref_id = ttrss_entries.id");
2578                                         $from_qpart = " FROM " . implode(", ", $sub_selects) . ", ttrss_user_entries, ttrss_entries";
2579                                         $where_qpart = " WHERE " . implode(" AND ", $sub_ands);
2580                                 }
2581                                 //                              error_log("TAG SQL: " . $tag_sql);
2582                                 // $tag_sql = "tag_name = '$feed'";   DEFAULT way
2583
2584                                 //                              error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
2585                                 $result = db_query($link, $select_qpart . $from_qpart . $where_qpart);
2586                         }
2587
2588                         return array($result, $feed_title, $feed_site_url, $last_error);
2589
2590         }
2591
2592         function sanitize($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
2593                 global $purifier;
2594
2595                 if (!$owner) $owner = $_SESSION["uid"];
2596
2597                 $res = trim($str); if (!$res) return '';
2598
2599                 // create global Purifier object if needed
2600                 if (!$purifier) {
2601                         require_once 'lib/htmlpurifier/library/HTMLPurifier.auto.php';
2602
2603                         $config = HTMLPurifier_Config::createDefault();
2604
2605                         $allowed = "p,a[href],i,em,b,strong,code,pre,blockquote,br,img[src|alt|title|align|hspace],ul,ol,li,h1,h2,h3,h4,s,object[classid|type|id|name|width|height|codebase],param[name|value],table,tr,td,span[class]";
2606
2607                         $config->set('HTML.SafeObject', true);
2608                         @$config->set('HTML', 'Allowed', $allowed);
2609                         $config->set('Output.FlashCompat', true);
2610                         $config->set('Attr.EnableID', true);
2611                         if (!defined('MOBILE_VERSION')) {
2612                                 @$config->set('Cache', 'SerializerPath', CACHE_DIR . "/htmlpurifier");
2613                         } else {
2614                                 @$config->set('Cache', 'SerializerPath', "../" . CACHE_DIR . "/htmlpurifier");
2615                         }
2616
2617                         $config->set('Filter.YouTube', true);
2618
2619                         $purifier = new HTMLPurifier($config);
2620                 }
2621
2622                 $res = $purifier->purify($res);
2623
2624                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
2625                         $res = preg_replace('/<img[^>]+>/is', '', $res);
2626                 }
2627
2628                 if (strpos($res, "href=") === false)
2629                         $res = rewrite_urls($res);
2630
2631                 $charset_hack = '<head>
2632                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
2633                 </head>';
2634
2635                 $res = trim($res); if (!$res) return '';
2636
2637                 libxml_use_internal_errors(true);
2638
2639                 $doc = new DOMDocument();
2640                 $doc->loadHTML($charset_hack . $res);
2641                 $xpath = new DOMXPath($doc);
2642
2643                 $entries = $xpath->query('(//a[@href]|//img[@src])');
2644                 $br_inserted = 0;
2645
2646                 foreach ($entries as $entry) {
2647
2648                         if ($site_url) {
2649
2650                                 if ($entry->hasAttribute('href'))
2651                                         $entry->setAttribute('href',
2652                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
2653
2654                                 if ($entry->hasAttribute('src'))
2655                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
2656                                                 $entry->setAttribute('src',
2657                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
2658                         }
2659
2660                         if (strtolower($entry->nodeName) == "a") {
2661                                 $entry->setAttribute("target", "_blank");
2662                         }
2663
2664                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
2665                                 $br = $doc->createElement("br");
2666
2667                                 if ($entry->parentNode->nextSibling) {
2668                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
2669                                         $br_inserted = 1;
2670                                 }
2671
2672                         }
2673                 }
2674
2675                 $node = $doc->getElementsByTagName('body')->item(0);
2676
2677                 return $doc->saveXML($node);
2678         }
2679
2680         /**
2681          * Send by mail a digest of last articles.
2682          *
2683          * @param mixed $link The database connection.
2684          * @param integer $limit The maximum number of articles by digest.
2685          * @return boolean Return false if digests are not enabled.
2686          */
2687         function send_headlines_digests($link, $limit = 100, $debug = true) {
2688
2689                 require_once 'lib/phpmailer/class.phpmailer.php';
2690
2691                 $user_limit = 15; // amount of users to process (e.g. emails to send out)
2692                 $days = 1;
2693
2694                 if ($debug) _debug("Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit");
2695
2696                 if (DB_TYPE == "pgsql") {
2697                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
2698                 } else if (DB_TYPE == "mysql") {
2699                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
2700                 }
2701
2702                 $result = db_query($link, "SELECT id,email FROM ttrss_users
2703                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
2704
2705                 while ($line = db_fetch_assoc($result)) {
2706
2707                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
2708                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
2709
2710                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
2711
2712                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
2713                                 $digest = $tuple[0];
2714                                 $headlines_count = $tuple[1];
2715                                 $affected_ids = $tuple[2];
2716                                 $digest_text = $tuple[3];
2717
2718                                 if ($headlines_count > 0) {
2719
2720                                         $mail = new PHPMailer();
2721
2722                                         $mail->PluginDir = "lib/phpmailer/";
2723                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
2724
2725                                         $mail->CharSet = "UTF-8";
2726
2727                                         $mail->From = SMTP_FROM_ADDRESS;
2728                                         $mail->FromName = SMTP_FROM_NAME;
2729                                         $mail->AddAddress($line["email"], $line["login"]);
2730
2731                                         if (SMTP_HOST) {
2732                                                 $mail->Host = SMTP_HOST;
2733                                                 $mail->Mailer = "smtp";
2734                                                 $mail->SMTPAuth = SMTP_LOGIN != '';
2735                                                 $mail->Username = SMTP_LOGIN;
2736                                                 $mail->Password = SMTP_PASSWORD;
2737                                         }
2738
2739                                         $mail->IsHTML(true);
2740                                         $mail->Subject = DIGEST_SUBJECT;
2741                                         $mail->Body = $digest;
2742                                         $mail->AltBody = $digest_text;
2743
2744                                         $rc = $mail->Send();
2745
2746                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
2747
2748                                         print "RC=$rc\n";
2749
2750                                         if ($rc && $do_catchup) {
2751                                                 print "Marking affected articles as read...\n";
2752                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
2753                                         }
2754                                 } else {
2755                                         print "No headlines\n";
2756                                 }
2757
2758                                 db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
2759                                         WHERE id = " . $line["id"]);
2760                         }
2761                 }
2762
2763                 if ($debug) _debug("All done.");
2764
2765         }
2766
2767         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
2768
2769                 require_once "lib/MiniTemplator.class.php";
2770
2771                 $tpl = new MiniTemplator;
2772                 $tpl_t = new MiniTemplator;
2773
2774                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
2775                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
2776
2777                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
2778                 $tpl->setVariable('CUR_TIME', date('G:i'));
2779
2780                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
2781                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
2782
2783                 $affected_ids = array();
2784
2785                 if (DB_TYPE == "pgsql") {
2786                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
2787                 } else if (DB_TYPE == "mysql") {
2788                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
2789                 }
2790
2791                 $result = db_query($link, "SELECT ttrss_entries.title,
2792                                 ttrss_feeds.title AS feed_title,
2793                                 date_updated,
2794                                 ttrss_user_entries.ref_id,
2795                                 link,
2796                                 SUBSTRING(content, 1, 120) AS excerpt,
2797                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
2798                         FROM
2799                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
2800                         WHERE
2801                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
2802                                 AND include_in_digest = true
2803                                 AND $interval_query
2804                                 AND ttrss_user_entries.owner_uid = $user_id
2805                                 AND unread = true
2806                         ORDER BY ttrss_feeds.title, date_updated DESC
2807                         LIMIT $limit");
2808
2809                 $cur_feed_title = "";
2810
2811                 $headlines_count = db_num_rows($result);
2812
2813                 $headlines = array();
2814
2815                 while ($line = db_fetch_assoc($result)) {
2816                         array_push($headlines, $line);
2817                 }
2818
2819                 for ($i = 0; $i < sizeof($headlines); $i++) {
2820
2821                         $line = $headlines[$i];
2822
2823                         array_push($affected_ids, $line["ref_id"]);
2824
2825                         $updated = make_local_datetime($link, $line['last_updated'], false,
2826                                 $user_id);
2827
2828                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
2829                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
2830                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
2831                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
2832                         $tpl->setVariable('ARTICLE_EXCERPT',
2833                                 truncate_string(strip_tags($line["excerpt"]), 100));
2834
2835                         $tpl->addBlock('article');
2836
2837                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
2838                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
2839                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
2840                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
2841 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
2842 //                              truncate_string(strip_tags($line["excerpt"]), 100));
2843
2844                         $tpl_t->addBlock('article');
2845
2846                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
2847                                 $tpl->addBlock('feed');
2848                                 $tpl_t->addBlock('feed');
2849                         }
2850
2851                 }
2852
2853                 $tpl->addBlock('digest');
2854                 $tpl->generateOutputToString($tmp);
2855
2856                 $tpl_t->addBlock('digest');
2857                 $tpl_t->generateOutputToString($tmp_t);
2858
2859                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
2860         }
2861
2862         function check_for_update($link) {
2863                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
2864                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
2865
2866                         $version_data = @fetch_file_contents($version_url);
2867
2868                         if ($version_data) {
2869                                 $version_data = json_decode($version_data, true);
2870                                 if ($version_data && $version_data['version']) {
2871
2872                                         if (version_compare(VERSION, $version_data['version']) == -1) {
2873                                                 return $version_data;
2874                                         }
2875                                 }
2876                         }
2877                 }
2878                 return false;
2879         }
2880
2881         function markArticlesById($link, $ids, $cmode) {
2882
2883                 $tmp_ids = array();
2884
2885                 foreach ($ids as $id) {
2886                         array_push($tmp_ids, "ref_id = '$id'");
2887                 }
2888
2889                 $ids_qpart = join(" OR ", $tmp_ids);
2890
2891                 if ($cmode == 0) {
2892                         db_query($link, "UPDATE ttrss_user_entries SET
2893                         marked = false,last_read = NOW()
2894                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2895                 } else if ($cmode == 1) {
2896                         db_query($link, "UPDATE ttrss_user_entries SET
2897                         marked = true
2898                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2899                 } else {
2900                         db_query($link, "UPDATE ttrss_user_entries SET
2901                         marked = NOT marked,last_read = NOW()
2902                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2903                 }
2904         }
2905
2906         function publishArticlesById($link, $ids, $cmode) {
2907
2908                 $tmp_ids = array();
2909
2910                 foreach ($ids as $id) {
2911                         array_push($tmp_ids, "ref_id = '$id'");
2912                 }
2913
2914                 $ids_qpart = join(" OR ", $tmp_ids);
2915
2916                 if ($cmode == 0) {
2917                         db_query($link, "UPDATE ttrss_user_entries SET
2918                         published = false,last_read = NOW()
2919                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2920                 } else if ($cmode == 1) {
2921                         db_query($link, "UPDATE ttrss_user_entries SET
2922                         published = true
2923                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2924                 } else {
2925                         db_query($link, "UPDATE ttrss_user_entries SET
2926                         published = NOT published,last_read = NOW()
2927                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2928                 }
2929
2930                 if (PUBSUBHUBBUB_HUB) {
2931                         $rss_link = get_self_url_prefix() .
2932                                 "/public.php?op=rss&id=-2&key=" .
2933                                 get_feed_access_key($link, -2, false);
2934
2935                         $p = new Publisher(PUBSUBHUBBUB_HUB);
2936
2937                         $pubsub_result = $p->publish_update($rss_link);
2938                 }
2939         }
2940
2941         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
2942
2943                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2944                 if (count($ids) == 0) return;
2945
2946                 $tmp_ids = array();
2947
2948                 foreach ($ids as $id) {
2949                         array_push($tmp_ids, "ref_id = '$id'");
2950                 }
2951
2952                 $ids_qpart = join(" OR ", $tmp_ids);
2953
2954                 if ($cmode == 0) {
2955                         db_query($link, "UPDATE ttrss_user_entries SET
2956                         unread = false,last_read = NOW()
2957                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2958                 } else if ($cmode == 1) {
2959                         db_query($link, "UPDATE ttrss_user_entries SET
2960                         unread = true
2961                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2962                 } else {
2963                         db_query($link, "UPDATE ttrss_user_entries SET
2964                         unread = NOT unread,last_read = NOW()
2965                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2966                 }
2967
2968                 /* update ccache */
2969
2970                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
2971                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2972
2973                 while ($line = db_fetch_assoc($result)) {
2974                         ccache_update($link, $line["feed_id"], $owner_uid);
2975                 }
2976         }
2977
2978         function catchupArticleById($link, $id, $cmode) {
2979
2980                 if ($cmode == 0) {
2981                         db_query($link, "UPDATE ttrss_user_entries SET
2982                         unread = false,last_read = NOW()
2983                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
2984                 } else if ($cmode == 1) {
2985                         db_query($link, "UPDATE ttrss_user_entries SET
2986                         unread = true
2987                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
2988                 } else {
2989                         db_query($link, "UPDATE ttrss_user_entries SET
2990                         unread = NOT unread,last_read = NOW()
2991                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
2992                 }
2993
2994                 $feed_id = getArticleFeed($link, $id);
2995                 ccache_update($link, $feed_id, $_SESSION["uid"]);
2996         }
2997
2998         function make_guid_from_title($title) {
2999                 return preg_replace("/[ \"\',.:;]/", "-",
3000                         mb_strtolower(strip_tags($title), 'utf-8'));
3001         }
3002
3003         function get_article_tags($link, $id, $owner_uid = 0, $tag_cache = false) {
3004
3005                 global $memcache;
3006
3007                 $a_id = db_escape_string($id);
3008
3009                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3010
3011                 $query = "SELECT DISTINCT tag_name,
3012                         owner_uid as owner FROM
3013                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
3014                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
3015
3016                 $obj_id = md5("TAGS:$owner_uid:$id");
3017                 $tags = array();
3018
3019                 if ($memcache && $obj = $memcache->get($obj_id)) {
3020                         $tags = $obj;
3021                 } else {
3022                         /* check cache first */
3023
3024                         if ($tag_cache === false) {
3025                                 $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
3026                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3027
3028                                 $tag_cache = db_fetch_result($result, 0, "tag_cache");
3029                         }
3030
3031                         if ($tag_cache) {
3032                                 $tags = explode(",", $tag_cache);
3033                         } else {
3034
3035                                 /* do it the hard way */
3036
3037                                 $tmp_result = db_query($link, $query);
3038
3039                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
3040                                         array_push($tags, $tmp_line["tag_name"]);
3041                                 }
3042
3043                                 /* update the cache */
3044
3045                                 $tags_str = db_escape_string(join(",", $tags));
3046
3047                                 db_query($link, "UPDATE ttrss_user_entries
3048                                         SET tag_cache = '$tags_str' WHERE ref_id = '$id'
3049                                         AND owner_uid = " . $_SESSION["uid"]);
3050                         }
3051
3052                         if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);
3053                 }
3054
3055                 return $tags;
3056         }
3057
3058         function trim_array($array) {
3059                 $tmp = $array;
3060                 array_walk($tmp, 'trim');
3061                 return $tmp;
3062         }
3063
3064         function tag_is_valid($tag) {
3065                 if ($tag == '') return false;
3066                 if (preg_match("/^[0-9]*$/", $tag)) return false;
3067                 if (mb_strlen($tag) > 250) return false;
3068
3069                 if (function_exists('iconv')) {
3070                         $tag = iconv("utf-8", "utf-8", $tag);
3071                 }
3072
3073                 if (!$tag) return false;
3074
3075                 return true;
3076         }
3077
3078         function render_login_form($link, $mobile = 0) {
3079                 switch ($mobile) {
3080                 case 0:
3081                         require_once "login_form.php";
3082                         break;
3083                 case 1:
3084                         require_once "mobile/login_form.php";
3085                         break;
3086                 case 2:
3087                         require_once "mobile/classic/login_form.php";
3088                 }
3089         }
3090
3091         // from http://developer.apple.com/internet/safari/faq.html
3092         function no_cache_incantation() {
3093                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
3094                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
3095                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
3096                 header("Cache-Control: post-check=0, pre-check=0", false);
3097                 header("Pragma: no-cache"); // HTTP/1.0
3098         }
3099
3100         function format_warning($msg, $id = "") {
3101                 global $link;
3102                 return "<div class=\"warning\" id=\"$id\">
3103                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3104         }
3105
3106         function format_notice($msg, $id = "") {
3107                 global $link;
3108                 return "<div class=\"notice\" id=\"$id\">
3109                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
3110         }
3111
3112         function format_error($msg, $id = "") {
3113                 global $link;
3114                 return "<div class=\"error\" id=\"$id\">
3115                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3116         }
3117
3118         function print_notice($msg) {
3119                 return print format_notice($msg);
3120         }
3121
3122         function print_warning($msg) {
3123                 return print format_warning($msg);
3124         }
3125
3126         function print_error($msg) {
3127                 return print format_error($msg);
3128         }
3129
3130
3131         function T_sprintf() {
3132                 $args = func_get_args();
3133                 return vsprintf(__(array_shift($args)), $args);
3134         }
3135
3136         function format_inline_player($link, $url, $ctype) {
3137
3138                 $entry = "";
3139
3140                 if (strpos($ctype, "audio/") === 0) {
3141
3142                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
3143                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
3144                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
3145
3146                                 $id = 'AUDIO-' . uniqid();
3147
3148                                 $entry .= "<audio id=\"$id\"\">
3149                                         <source src=\"$url\"></source>
3150                                         </audio>";
3151
3152                                 $entry .= "<span onclick=\"player(this)\"
3153                                         title=\"".__("Click to play")."\" status=\"0\"
3154                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
3155
3156                         } else {
3157
3158                                 $entry .= "<object type=\"application/x-shockwave-flash\"
3159                                         data=\"lib/button/musicplayer.swf?song_url=$url\"
3160                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
3161                                         <param name=\"movie\"
3162                                                 value=\"lib/button/musicplayer.swf?song_url=$url\" />
3163                                         </object>";
3164                         }
3165                 }
3166
3167                 $filename = substr($url, strrpos($url, "/")+1);
3168
3169                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
3170                         $filename . " (" . $ctype . ")" . "</a>";
3171
3172                 return $entry;
3173         }
3174
3175         function format_article($link, $id, $mark_as_read = true, $zoom_mode = false) {
3176
3177                 $rv = array();
3178
3179                 $rv['id'] = $id;
3180
3181                 /* we can figure out feed_id from article id anyway, why do we
3182                  * pass feed_id here? let's ignore the argument :( */
3183
3184                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
3185                         WHERE ref_id = '$id'");
3186
3187                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
3188
3189                 $rv['feed_id'] = $feed_id;
3190
3191                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
3192
3193                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
3194                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
3195
3196                 if (db_num_rows($result) == 1) {
3197                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
3198                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
3199                 } else {
3200                         $rtl_content = false;
3201                         $always_display_enclosures = false;
3202                 }
3203
3204                 if ($rtl_content) {
3205                         $rtl_tag = "dir=\"RTL\"";
3206                         $rtl_class = "RTL";
3207                 } else {
3208                         $rtl_tag = "";
3209                         $rtl_class = "";
3210                 }
3211
3212                 if ($mark_as_read) {
3213                         $result = db_query($link, "UPDATE ttrss_user_entries
3214                                 SET unread = false,last_read = NOW()
3215                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3216
3217                         ccache_update($link, $feed_id, $_SESSION["uid"]);
3218                 }
3219
3220                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
3221                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
3222                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
3223                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
3224                         num_comments,
3225                         tag_cache,
3226                         author,
3227                         orig_feed_id,
3228                         note
3229                         FROM ttrss_entries,ttrss_user_entries
3230                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
3231
3232                 if ($result) {
3233
3234                         $line = db_fetch_assoc($result);
3235
3236                         if ($line["icon_url"]) {
3237                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
3238                         } else {
3239                                 $feed_icon = "&nbsp;";
3240                         }
3241
3242                         $feed_site_url = $line['site_url'];
3243
3244                         $num_comments = $line["num_comments"];
3245                         $entry_comments = "";
3246
3247                         if ($num_comments > 0) {
3248                                 if ($line["comments"]) {
3249                                         $comments_url = $line["comments"];
3250                                 } else {
3251                                         $comments_url = $line["link"];
3252                                 }
3253                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
3254                         } else {
3255                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
3256                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
3257                                 }
3258                         }
3259
3260                         if ($zoom_mode) {
3261                                 header("Content-Type: text/html");
3262                                 $rv['content'] .= "<html><head>
3263                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
3264                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
3265                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
3266                                         </head><body>";
3267                         }
3268
3269                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
3270                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
3271
3272                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
3273
3274                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
3275                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
3276
3277                         $entry_author = $line["author"];
3278
3279                         if ($entry_author) {
3280                                 $entry_author = __(" - ") . $entry_author;
3281                         }
3282
3283                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
3284                                 false, true);
3285
3286                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
3287
3288                         if ($line["link"]) {
3289                                 $rv['content'] .= "<div clear='both'><a target='_blank'
3290                                         title=\"".htmlspecialchars($line['title'])."\"
3291                                         href=\"" .
3292                                         $line["link"] . "\">" .
3293                                         truncate_string($line["title"], 100) .
3294                                         "<span class='author'>$entry_author</span></a></div>";
3295                         } else {
3296                                 $rv['content'] .= "<div clear='both'>" . $line["title"] . "$entry_author</div>";
3297                         }
3298
3299                         $tag_cache = $line["tag_cache"];
3300
3301                         if (!$tag_cache)
3302                                 $tags = get_article_tags($link, $id);
3303                         else
3304                                 $tags = explode(",", $tag_cache);
3305
3306                         $tags_str = format_tags_string($tags, $id);
3307                         $tags_str_full = join(", ", $tags);
3308
3309                         if (!$tags_str_full) $tags_str_full = __("no tags");
3310
3311                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
3312
3313                         $rv['content'] .= "<div style='float : right'>
3314                                 <img src='".theme_image($link, 'images/tag.png')."'
3315                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
3316
3317                         if (!$zoom_mode) {
3318                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
3319                                         <a title=\"".__('Edit tags for this article')."\"
3320                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
3321
3322                                 $rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
3323                                         id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
3324                                         position=\"below\">$tags_str_full</div>";
3325
3326                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
3327                                                 class='tagsPic' style=\"cursor : pointer\"
3328                                                 onclick=\"postOpenInNewTab(event, $id)\"
3329                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
3330
3331                                 $button_plugins = explode(",", ARTICLE_BUTTON_PLUGINS);
3332
3333                                 foreach ($button_plugins as $p) {
3334                                         $pclass = trim("${p}_button");
3335
3336                                         if (class_exists($pclass)) {
3337                                                 $plugin = new $pclass($link);
3338                                                 $rv['content'] .= $plugin->render($id, $line);
3339                                         }
3340                                 }
3341
3342                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
3343                                                 class='tagsPic' style=\"cursor : pointer\"
3344                                                 onclick=\"closeArticlePanel($id)\"
3345                                                 title='".__('Close article')."'>";
3346
3347                         } else {
3348                                 $tags_str = strip_tags($tags_str);
3349                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
3350                         }
3351                         $rv['content'] .= "</div>";
3352                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
3353
3354                         if ($line["orig_feed_id"]) {
3355
3356                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
3357                                         WHERE id = ".$line["orig_feed_id"]);
3358
3359                                 if (db_num_rows($tmp_result) != 0) {
3360
3361                                         $rv['content'] .= "<div clear='both'>";
3362                                         $rv['content'] .= __("Originally from:");
3363
3364                                         $rv['content'] .= "&nbsp;";
3365
3366                                         $tmp_line = db_fetch_assoc($tmp_result);
3367
3368                                         $rv['content'] .= "<a target='_blank'
3369                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
3370                                                 $tmp_line['title'] . "</a>";
3371
3372                                         $rv['content'] .= "&nbsp;";
3373
3374                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
3375                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.png'></a>";
3376
3377                                         $rv['content'] .= "</div>";
3378                                 }
3379                         }
3380
3381                         $rv['content'] .= "</div>";
3382
3383                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
3384                                 if ($line['note']) {
3385                                         $rv['content'] .= format_article_note($id, $line['note']);
3386                                 }
3387                         $rv['content'] .= "</div>";
3388
3389                         $rv['content'] .= "<div class=\"postIcon\">" .
3390                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
3391                                 href=\"".htmlspecialchars($feed_site_url)."\">".
3392                                 $feed_icon . "</a></div>";
3393
3394                         $rv['content'] .= "<div class=\"postContent\">";
3395
3396                         $article_content = sanitize($link, $line["content"], false, false,
3397                                 $feed_site_url);
3398
3399                         $rv['content'] .= $article_content;
3400
3401                         $rv['content'] .= format_article_enclosures($link, $id,
3402                                 $always_display_enclosures, $article_content);
3403
3404                         $rv['content'] .= "</div>";
3405
3406                         $rv['content'] .= "</div>";
3407
3408                 }
3409
3410                 if ($zoom_mode) {
3411                         $rv['content'] .= "
3412                                 <div style=\"text-align : center\">
3413                                 <button onclick=\"return window.close()\">".
3414                                         __("Close this window")."</button></div>";
3415                         $rv['content'] .= "</body></html>";
3416                 }
3417
3418                 return $rv;
3419
3420         }
3421
3422         function print_checkpoint($n, $s) {
3423                 $ts = getmicrotime();
3424                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
3425                 return $ts;
3426         }
3427
3428         function sanitize_tag($tag) {
3429                 $tag = trim($tag);
3430
3431                 $tag = mb_strtolower($tag, 'utf-8');
3432
3433                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
3434
3435 //              $tag = str_replace('"', "", $tag);
3436 //              $tag = str_replace("+", " ", $tag);
3437                 $tag = str_replace("technorati tag: ", "", $tag);
3438
3439                 return $tag;
3440         }
3441
3442         function get_self_url_prefix() {
3443                 return SELF_URL_PATH;
3444         }
3445
3446         function opml_publish_url($link){
3447
3448                 $url_path = get_self_url_prefix();
3449                 $url_path .= "/opml.php?op=publish&key=" .
3450                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
3451
3452                 return $url_path;
3453         }
3454
3455         /**
3456          * Purge a feed contents, marked articles excepted.
3457          *
3458          * @param mixed $link The database connection.
3459          * @param integer $id The id of the feed to purge.
3460          * @return void
3461          */
3462         function clear_feed_articles($link, $id) {
3463
3464                 if ($id != 0) {
3465                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3466                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3467                 } else {
3468                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3469                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3470                 }
3471
3472                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
3473                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
3474
3475                 ccache_update($link, $id, $_SESSION['uid']);
3476         } // function clear_feed_articles
3477
3478         /**
3479          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
3480          *
3481          * @return string The Mozilla Firefox feed adding URL.
3482          */
3483         function add_feed_url() {
3484                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
3485
3486                 $url_path = get_self_url_prefix() .
3487                         "/backend.php?op=pref-feeds&quiet=1&method=add&feed_url=%s";
3488                 return $url_path;
3489         } // function add_feed_url
3490
3491         function encrypt_password($pass, $salt = '', $mode2 = false) {
3492                 if ($salt && $mode2) {
3493                         return "MODE2:" . hash('sha256', $salt . $pass);
3494                 } else if ($salt) {
3495                         return "SHA1X:" . sha1("$salt:$pass");
3496                 } else {
3497                         return "SHA1:" . sha1($pass);
3498                 }
3499         } // function encrypt_password
3500
3501         function sanitize_article_content($text) {
3502                 # we don't support CDATA sections in articles, they break our own escaping
3503                 $text = preg_replace("/\[\[CDATA/", "", $text);
3504                 $text = preg_replace("/\]\]\>/", "", $text);
3505                 return $text;
3506         }
3507
3508         function load_filters($link, $feed, $owner_uid, $action_id = false) {
3509                 $filters = array();
3510
3511                 global $memcache;
3512
3513                 $obj_id = md5("FILTER:$feed:$owner_uid:$action_id");
3514
3515                 if ($memcache && $obj = $memcache->get($obj_id)) {
3516
3517                         return $obj;
3518
3519                 } else {
3520
3521                         if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
3522
3523                         $result = db_query($link, "SELECT reg_exp,
3524                                 ttrss_filter_types.name AS name,
3525                                 ttrss_filter_actions.name AS action,
3526                                 inverse,
3527                                 action_param,
3528                                 filter_param
3529                                 FROM ttrss_filters
3530                                         LEFT JOIN ttrss_feeds ON (ttrss_feeds.id = '$feed'),
3531                                         ttrss_filter_types,ttrss_filter_actions
3532                                 WHERE
3533                                         enabled = true AND
3534                                         $ftype_query_part
3535                                         ttrss_filters.owner_uid = $owner_uid AND
3536                                         ttrss_filter_types.id = filter_type AND
3537                                         ttrss_filter_actions.id = action_id AND
3538                                         ((cat_filter = true AND ttrss_feeds.cat_id = ttrss_filters.cat_id) OR
3539                                         (cat_filter = true AND ttrss_feeds.cat_id IS NULL AND
3540                                                 ttrss_filters.cat_id IS NULL) OR
3541                                         (cat_filter = false AND (feed_id IS NULL OR feed_id = '$feed')))
3542                                 ORDER BY reg_exp");
3543
3544                         while ($line = db_fetch_assoc($result)) {
3545
3546                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
3547                                         $filter["reg_exp"] = $line["reg_exp"];
3548                                         $filter["action"] = $line["action"];
3549                                         $filter["action_param"] = $line["action_param"];
3550                                         $filter["filter_param"] = $line["filter_param"];
3551                                         $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
3552
3553                                         array_push($filters[$line["name"]], $filter);
3554                                 }
3555
3556                         if ($memcache) $memcache->add($obj_id, $filters, 0, 3600*8);
3557
3558                         return $filters;
3559                 }
3560         }
3561
3562         function get_score_pic($score) {
3563                 if ($score > 100) {
3564                         return "score_high.png";
3565                 } else if ($score > 0) {
3566                         return "score_half_high.png";
3567                 } else if ($score < -100) {
3568                         return "score_low.png";
3569                 } else if ($score < 0) {
3570                         return "score_half_low.png";
3571                 } else {
3572                         return "score_neutral.png";
3573                 }
3574         }
3575
3576         function feed_has_icon($id) {
3577                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
3578         }
3579
3580         function init_connection($link) {
3581                 if ($link) {
3582
3583                         if (DB_TYPE == "pgsql") {
3584                                 pg_query($link, "set client_encoding = 'UTF-8'");
3585                                 pg_set_client_encoding("UNICODE");
3586                                 pg_query($link, "set datestyle = 'ISO, european'");
3587                                 pg_query($link, "set TIME ZONE 0");
3588                         } else {
3589                                 db_query($link, "SET time_zone = '+0:0'");
3590
3591                                 if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
3592                                         db_query($link, "SET NAMES " . MYSQL_CHARSET);
3593                                 }
3594                         }
3595                         return true;
3596                 } else {
3597                         print "Unable to connect to database:" . db_last_error();
3598                         return false;
3599                 }
3600         }
3601
3602         /* function ccache_zero($link, $feed_id, $owner_uid) {
3603                 db_query($link, "UPDATE ttrss_counters_cache SET
3604                         value = 0, updated = NOW() WHERE
3605                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3606         } */
3607
3608         function ccache_zero_all($link, $owner_uid) {
3609                 db_query($link, "UPDATE ttrss_counters_cache SET
3610                         value = 0 WHERE owner_uid = '$owner_uid'");
3611
3612                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
3613                         value = 0 WHERE owner_uid = '$owner_uid'");
3614         }
3615
3616         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
3617
3618                 if (!$is_cat) {
3619                         $table = "ttrss_counters_cache";
3620                 } else {
3621                         $table = "ttrss_cat_counters_cache";
3622                 }
3623
3624                 db_query($link, "DELETE FROM $table WHERE
3625                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3626
3627         }
3628
3629         function ccache_update_all($link, $owner_uid) {
3630
3631                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
3632
3633                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
3634                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3635
3636                         while ($line = db_fetch_assoc($result)) {
3637                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
3638                         }
3639
3640                         /* We have to manually include category 0 */
3641
3642                         ccache_update($link, 0, $owner_uid, true);
3643
3644                 } else {
3645                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
3646                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3647
3648                         while ($line = db_fetch_assoc($result)) {
3649                                 print ccache_update($link, $line["feed_id"], $owner_uid);
3650
3651                         }
3652
3653                 }
3654         }
3655
3656         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
3657                 $no_update = false) {
3658
3659                 if (!is_numeric($feed_id)) return;
3660
3661                 if (!$is_cat) {
3662                         $table = "ttrss_counters_cache";
3663                         if ($feed_id > 0) {
3664                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3665                                         WHERE id = '$feed_id'");
3666                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3667                         }
3668                 } else {
3669                         $table = "ttrss_cat_counters_cache";
3670                 }
3671
3672                 if (DB_TYPE == "pgsql") {
3673                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
3674                 } else if (DB_TYPE == "mysql") {
3675                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
3676                 }
3677
3678                 $result = db_query($link, "SELECT value FROM $table
3679                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
3680                         LIMIT 1");
3681
3682                 if (db_num_rows($result) == 1) {
3683                         return db_fetch_result($result, 0, "value");
3684                 } else {
3685                         if ($no_update) {
3686                                 return -1;
3687                         } else {
3688                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
3689                         }
3690                 }
3691
3692         }
3693
3694         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
3695                 $update_pcat = true) {
3696
3697                 if (!is_numeric($feed_id)) return;
3698
3699                 if (!$is_cat && $feed_id > 0) {
3700                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3701                                 WHERE id = '$feed_id'");
3702                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3703                 }
3704
3705                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
3706
3707                 /* When updating a label, all we need to do is recalculate feed counters
3708                  * because labels are not cached */
3709
3710                 if ($feed_id < 0) {
3711                         ccache_update_all($link, $owner_uid);
3712                         return;
3713                 }
3714
3715                 if (!$is_cat) {
3716                         $table = "ttrss_counters_cache";
3717                 } else {
3718                         $table = "ttrss_cat_counters_cache";
3719                 }
3720
3721                 if ($is_cat && $feed_id >= 0) {
3722                         if ($feed_id != 0) {
3723                                 $cat_qpart = "cat_id = '$feed_id'";
3724                         } else {
3725                                 $cat_qpart = "cat_id IS NULL";
3726                         }
3727
3728                         /* Recalculate counters for child feeds */
3729
3730                         $result = db_query($link, "SELECT id FROM ttrss_feeds
3731                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
3732
3733                         while ($line = db_fetch_assoc($result)) {
3734                                 ccache_update($link, $line["id"], $owner_uid, false, false);
3735                         }
3736
3737                         $result = db_query($link, "SELECT SUM(value) AS sv
3738                                 FROM ttrss_counters_cache, ttrss_feeds
3739                                 WHERE id = feed_id AND $cat_qpart AND
3740                                 ttrss_feeds.owner_uid = '$owner_uid'");
3741
3742                         $unread = (int) db_fetch_result($result, 0, "sv");
3743
3744                 } else {
3745                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
3746                 }
3747
3748                 db_query($link, "BEGIN");
3749
3750                 $result = db_query($link, "SELECT feed_id FROM $table
3751                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
3752
3753                 if (db_num_rows($result) == 1) {
3754                         db_query($link, "UPDATE $table SET
3755                                 value = '$unread', updated = NOW() WHERE
3756                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3757
3758                 } else {
3759                         db_query($link, "INSERT INTO $table
3760                                 (feed_id, value, owner_uid, updated)
3761                                 VALUES
3762                                 ($feed_id, $unread, $owner_uid, NOW())");
3763                 }
3764
3765                 db_query($link, "COMMIT");
3766
3767                 if ($feed_id > 0 && $prev_unread != $unread) {
3768
3769                         if (!$is_cat) {
3770
3771                                 /* Update parent category */
3772
3773                                 if ($update_pcat) {
3774
3775                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
3776                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
3777
3778                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
3779
3780                                         ccache_update($link, $cat_id, $owner_uid, true);
3781
3782                                 }
3783                         }
3784                 } else if ($feed_id < 0) {
3785                         ccache_update_all($link, $owner_uid);
3786                 }
3787
3788                 return $unread;
3789         }
3790
3791         /* function ccache_cleanup($link, $owner_uid) {
3792
3793                 if (DB_TYPE == "pgsql") {
3794                         db_query($link, "DELETE FROM ttrss_counters_cache AS c1 WHERE
3795                                 (SELECT count(*) FROM ttrss_counters_cache AS c2
3796                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3797                                         AND owner_uid = '$owner_uid'");
3798
3799                         db_query($link, "DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
3800                                 (SELECT count(*) FROM ttrss_cat_counters_cache AS c2
3801                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3802                                         AND owner_uid = '$owner_uid'");
3803                 } else {
3804                         db_query($link, "DELETE c1 FROM
3805                                         ttrss_counters_cache AS c1,
3806                                         ttrss_counters_cache AS c2
3807                                 WHERE
3808                                         c1.owner_uid = '$owner_uid' AND
3809                                         c1.owner_uid = c2.owner_uid AND
3810                                         c1.feed_id = c2.feed_id");
3811
3812                         db_query($link, "DELETE c1 FROM
3813                                         ttrss_cat_counters_cache AS c1,
3814                                         ttrss_cat_counters_cache AS c2
3815                                 WHERE
3816                                         c1.owner_uid = '$owner_uid' AND
3817                                         c1.owner_uid = c2.owner_uid AND
3818                                         c1.feed_id = c2.feed_id");
3819
3820                 }
3821         } */
3822
3823         function label_find_id($link, $label, $owner_uid) {
3824                 $result = db_query($link,
3825                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
3826                                 AND owner_uid = '$owner_uid' LIMIT 1");
3827
3828                 if (db_num_rows($result) == 1) {
3829                         return db_fetch_result($result, 0, "id");
3830                 } else {
3831                         return 0;
3832                 }
3833         }
3834
3835         function get_article_labels($link, $id) {
3836                 global $memcache;
3837
3838                 $obj_id = md5("LABELS:$id:" . $_SESSION["uid"]);
3839
3840                 $rv = array();
3841
3842                 if ($memcache && $obj = $memcache->get($obj_id)) {
3843                         return $obj;
3844                 } else {
3845
3846                         $result = db_query($link, "SELECT label_cache FROM
3847                                 ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
3848                                 $_SESSION["uid"]);
3849
3850                         $label_cache = db_fetch_result($result, 0, "label_cache");
3851
3852                         if ($label_cache) {
3853
3854                                 $label_cache = json_decode($label_cache, true);
3855
3856                                 if ($label_cache["no-labels"] == 1)
3857                                         return $rv;
3858                                 else
3859                                         return $label_cache;
3860                         }
3861
3862                         $result = db_query($link,
3863                                 "SELECT DISTINCT label_id,caption,fg_color,bg_color
3864                                         FROM ttrss_labels2, ttrss_user_labels2
3865                                 WHERE id = label_id
3866                                         AND article_id = '$id'
3867                                         AND owner_uid = ".$_SESSION["uid"] . "
3868                                 ORDER BY caption");
3869
3870                         while ($line = db_fetch_assoc($result)) {
3871                                 $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
3872                                         $line["bg_color"]);
3873                                 array_push($rv, $rk);
3874                         }
3875                         if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
3876
3877                         if (count($rv) > 0)
3878                                 label_update_cache($link, $id, $rv);
3879                         else
3880                                 label_update_cache($link, $id, array("no-labels" => 1));
3881                 }
3882
3883                 return $rv;
3884         }
3885
3886
3887         function label_find_caption($link, $label, $owner_uid) {
3888                 $result = db_query($link,
3889                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
3890                                 AND owner_uid = '$owner_uid' LIMIT 1");
3891
3892                 if (db_num_rows($result) == 1) {
3893                         return db_fetch_result($result, 0, "caption");
3894                 } else {
3895                         return "";
3896                 }
3897         }
3898
3899         function label_update_cache($link, $id, $labels = false, $force = false) {
3900
3901                 if ($force)
3902                         label_clear_cache($link, $id);
3903
3904                 if (!$labels)
3905                         $labels = get_article_labels($link, $id);
3906
3907                 $labels = db_escape_string(json_encode($labels));
3908
3909                 db_query($link, "UPDATE ttrss_user_entries SET
3910                         label_cache = '$labels' WHERE ref_id = '$id'");
3911
3912         }
3913
3914         function label_clear_cache($link, $id) {
3915
3916                 db_query($link, "UPDATE ttrss_user_entries SET
3917                         label_cache = '' WHERE ref_id = '$id'");
3918
3919         }
3920
3921         function label_remove_article($link, $id, $label, $owner_uid) {
3922
3923                 $label_id = label_find_id($link, $label, $owner_uid);
3924
3925                 if (!$label_id) return;
3926
3927                 $result = db_query($link,
3928                         "DELETE FROM ttrss_user_labels2
3929                         WHERE
3930                                 label_id = '$label_id' AND
3931                                 article_id = '$id'");
3932
3933                 label_clear_cache($link, $id);
3934         }
3935
3936         function label_add_article($link, $id, $label, $owner_uid) {
3937
3938                 global $memcache;
3939
3940                 if ($memcache) {
3941                         $obj_id = md5("LABELS:$id:$owner_uid");
3942                         $memcache->delete($obj_id);
3943                 }
3944
3945                 $label_id = label_find_id($link, $label, $owner_uid);
3946
3947                 if (!$label_id) return;
3948
3949                 $result = db_query($link,
3950                         "SELECT
3951                                 article_id FROM ttrss_labels2, ttrss_user_labels2
3952                         WHERE
3953                                 label_id = id AND
3954                                 label_id = '$label_id' AND
3955                                 article_id = '$id' AND owner_uid = '$owner_uid'
3956                         LIMIT 1");
3957
3958                 if (db_num_rows($result) == 0) {
3959                         db_query($link, "INSERT INTO ttrss_user_labels2
3960                                 (label_id, article_id) VALUES ('$label_id', '$id')");
3961                 }
3962
3963                 label_clear_cache($link, $id);
3964
3965         }
3966
3967         function label_remove($link, $id, $owner_uid) {
3968                 global $memcache;
3969
3970                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3971
3972                 if ($memcache) {
3973                         $obj_id = md5("LABELS:$id:$owner_uid");
3974                         $memcache->delete($obj_id);
3975                 }
3976
3977                 db_query($link, "BEGIN");
3978
3979                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
3980                         WHERE id = '$id'");
3981
3982                 $caption = db_fetch_result($result, 0, "caption");
3983
3984                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
3985                         AND owner_uid = " . $owner_uid);
3986
3987                 if (db_affected_rows($link, $result) != 0 && $caption) {
3988
3989                         /* Remove access key for the label */
3990
3991                         $ext_id = -11 - $id;
3992
3993                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
3994                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
3995
3996                         /* Disable filters that reference label being removed */
3997
3998                         db_query($link, "UPDATE ttrss_filters SET
3999                                 enabled = false WHERE action_param = '$caption'
4000                                         AND action_id = 7
4001                                         AND owner_uid = " . $owner_uid);
4002
4003                         /* Remove cached data */
4004
4005                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
4006                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
4007
4008                 }
4009
4010                 db_query($link, "COMMIT");
4011         }
4012
4013         function label_create($link, $caption, $fg_color = '', $bg_color = '', $owner_uid) {
4014
4015                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
4016
4017                 db_query($link, "BEGIN");
4018
4019                 $result = false;
4020
4021                 $result = db_query($link, "SELECT id FROM ttrss_labels2
4022                         WHERE caption = '$caption' AND owner_uid = $owner_uid");
4023
4024                 if (db_num_rows($result) == 0) {
4025                         $result = db_query($link,
4026                                 "INSERT INTO ttrss_labels2 (caption,owner_uid,fg_color,bg_color)
4027                                         VALUES ('$caption', '$owner_uid', '$fg_color', '$bg_color')");
4028
4029                         $result = db_affected_rows($link, $result) != 0;
4030                 }
4031
4032                 db_query($link, "COMMIT");
4033
4034                 return $result;
4035         }
4036
4037         function format_tags_string($tags, $id) {
4038
4039                 $tags_str = "";
4040                 $tags_nolinks_str = "";
4041
4042                 $num_tags = 0;
4043
4044                 $tag_limit = 6;
4045
4046                 $formatted_tags = array();
4047
4048                 foreach ($tags as $tag) {
4049                         $num_tags++;
4050                         $tag_escaped = str_replace("'", "\\'", $tag);
4051
4052                         if (mb_strlen($tag) > 30) {
4053                                 $tag = truncate_string($tag, 30);
4054                         }
4055
4056                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
4057
4058                         array_push($formatted_tags, $tag_str);
4059
4060                         $tmp_tags_str = implode(", ", $formatted_tags);
4061
4062                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
4063                                 break;
4064                         }
4065                 }
4066
4067                 $tags_str = implode(", ", $formatted_tags);
4068
4069                 if ($num_tags < count($tags)) {
4070                         $tags_str .= ", &hellip;";
4071                 }
4072
4073                 if ($num_tags == 0) {
4074                         $tags_str = __("no tags");
4075                 }
4076
4077                 return $tags_str;
4078
4079         }
4080
4081         function format_article_labels($labels, $id) {
4082
4083                 $labels_str = "";
4084
4085                 foreach ($labels as $l) {
4086                         $labels_str .= sprintf("<span class='hlLabelRef'
4087                                 style='color : %s; background-color : %s'>%s</span>",
4088                                         $l[2], $l[3], $l[1]);
4089                         }
4090
4091                 return $labels_str;
4092
4093         }
4094
4095         function format_article_note($id, $note) {
4096
4097                 $str = "<div class='articleNote'        onclick=\"editArticleNote($id)\">
4098                         <div class='noteEdit' onclick=\"editArticleNote($id)\">".
4099                         __('(edit note)')."</div>$note</div>";
4100
4101                 return $str;
4102         }
4103
4104         function toggle_collapse_cat($link, $cat_id, $mode) {
4105                 if ($cat_id > 0) {
4106                         $mode = bool_to_sql_bool($mode);
4107
4108                         db_query($link, "UPDATE ttrss_feed_categories SET
4109                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
4110                                 $_SESSION["uid"]);
4111                 } else {
4112                         $pref_name = '';
4113
4114                         switch ($cat_id) {
4115                         case -1:
4116                                 $pref_name = '_COLLAPSED_SPECIAL';
4117                                 break;
4118                         case -2:
4119                                 $pref_name = '_COLLAPSED_LABELS';
4120                                 break;
4121                         case 0:
4122                                 $pref_name = '_COLLAPSED_UNCAT';
4123                                 break;
4124                         }
4125
4126                         if ($pref_name) {
4127                                 if ($mode) {
4128                                         set_pref($link, $pref_name, 'true');
4129                                 } else {
4130                                         set_pref($link, $pref_name, 'false');
4131                                 }
4132                         }
4133                 }
4134         }
4135
4136         function remove_feed($link, $id, $owner_uid) {
4137
4138                 if ($id > 0) {
4139
4140                         /* save starred articles in Archived feed */
4141
4142                         db_query($link, "BEGIN");
4143
4144                         /* prepare feed if necessary */
4145
4146                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4147                                 WHERE id = '$id'");
4148
4149                         if (db_num_rows($result) == 0) {
4150                                 db_query($link, "INSERT INTO ttrss_archived_feeds
4151                                         (id, owner_uid, title, feed_url, site_url)
4152                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4153                                 WHERE id = '$id'");
4154                         }
4155
4156                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
4157                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
4158                                         marked = true AND owner_uid = $owner_uid");
4159
4160                         /* Remove access key for the feed */
4161
4162                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
4163                                 feed_id = '$id' AND owner_uid = $owner_uid");
4164
4165                         /* remove the feed */
4166
4167                         db_query($link, "DELETE FROM ttrss_feeds
4168                                         WHERE id = '$id' AND owner_uid = $owner_uid");
4169
4170                         db_query($link, "COMMIT");
4171
4172                         if (file_exists(ICONS_DIR . "/$id.ico")) {
4173                                 unlink(ICONS_DIR . "/$id.ico");
4174                         }
4175
4176                         ccache_remove($link, $id, $owner_uid);
4177
4178                 } else {
4179                         label_remove($link, -11-$id, $owner_uid);
4180                         ccache_remove($link, -11-$id, $owner_uid);
4181                 }
4182         }
4183
4184         function add_feed_category($link, $feed_cat) {
4185
4186                 if (!$feed_cat) return false;
4187
4188                 db_query($link, "BEGIN");
4189
4190                 $result = db_query($link,
4191                         "SELECT id FROM ttrss_feed_categories
4192                         WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
4193
4194                 if (db_num_rows($result) == 0) {
4195
4196                         $result = db_query($link,
4197                                 "INSERT INTO ttrss_feed_categories (owner_uid,title)
4198                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
4199
4200                         db_query($link, "COMMIT");
4201
4202                         return true;
4203                 }
4204
4205                 return false;
4206         }
4207
4208         function remove_feed_category($link, $id, $owner_uid) {
4209
4210                 db_query($link, "DELETE FROM ttrss_feed_categories
4211                         WHERE id = '$id' AND owner_uid = $owner_uid");
4212
4213                 ccache_remove($link, $id, $owner_uid, true);
4214         }
4215
4216         function archive_article($link, $id, $owner_uid) {
4217                 db_query($link, "BEGIN");
4218
4219                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4220                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
4221
4222                 if (db_num_rows($result) != 0) {
4223
4224                         /* prepare the archived table */
4225
4226                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4227
4228                         if ($feed_id) {
4229                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4230                                         WHERE id = '$feed_id'");
4231
4232                                 if (db_num_rows($result) == 0) {
4233                                         db_query($link, "INSERT INTO ttrss_archived_feeds
4234                                                 (id, owner_uid, title, feed_url, site_url)
4235                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4236                                         WHERE id = '$feed_id'");
4237                                 }
4238
4239                                 db_query($link, "UPDATE ttrss_user_entries
4240                                         SET orig_feed_id = feed_id, feed_id = NULL
4241                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4242                         }
4243                 }
4244
4245                 db_query($link, "COMMIT");
4246         }
4247
4248         function getArticleFeed($link, $id) {
4249                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4250                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4251
4252                 if (db_num_rows($result) != 0) {
4253                         return db_fetch_result($result, 0, "feed_id");
4254                 } else {
4255                         return 0;
4256                 }
4257         }
4258
4259         /**
4260          * Fixes incomplete URLs by prepending "http://".
4261          * Also replaces feed:// with http://, and
4262          * prepends a trailing slash if the url is a domain name only.
4263          *
4264          * @param string $url Possibly incomplete URL
4265          *
4266          * @return string Fixed URL.
4267          */
4268         function fix_url($url) {
4269                 if (strpos($url, '://') === false) {
4270                         $url = 'http://' . $url;
4271                 } else if (substr($url, 0, 5) == 'feed:') {
4272                         $url = 'http:' . substr($url, 5);
4273                 }
4274
4275                 //prepend slash if the URL has no slash in it
4276                 // "http://www.example" -> "http://www.example/"
4277                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
4278                         $url .= '/';
4279                 }
4280
4281                 if ($url != "http:///")
4282                         return $url;
4283                 else
4284                         return '';
4285         }
4286
4287         function validate_feed_url($url) {
4288                 $parts = parse_url($url);
4289
4290                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
4291
4292         }
4293
4294         function get_article_enclosures($link, $id) {
4295
4296                 global $memcache;
4297
4298                 $query = "SELECT * FROM ttrss_enclosures
4299                         WHERE post_id = '$id' AND content_url != ''";
4300
4301                 $obj_id = md5("ENCLOSURES:$id");
4302
4303                 $rv = array();
4304
4305                 if ($memcache && $obj = $memcache->get($obj_id)) {
4306                         $rv = $obj;
4307                 } else {
4308                         $result = db_query($link, $query);
4309
4310                         if (db_num_rows($result) > 0) {
4311                                 while ($line = db_fetch_assoc($result)) {
4312                                         array_push($rv, $line);
4313                                 }
4314                                 if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
4315                         }
4316                 }
4317
4318                 return $rv;
4319         }
4320
4321         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset) {
4322
4323                         $feeds = array();
4324
4325                         /* Labels */
4326
4327                         if ($cat_id == -4 || $cat_id == -2) {
4328                                 $counters = getLabelCounters($link, true);
4329
4330                                 foreach (array_values($counters) as $cv) {
4331
4332                                         $unread = $cv["counter"];
4333
4334                                         if ($unread || !$unread_only) {
4335
4336                                                 $row = array(
4337                                                                 "id" => $cv["id"],
4338                                                                 "title" => $cv["description"],
4339                                                                 "unread" => $cv["counter"],
4340                                                                 "cat_id" => -2,
4341                                                         );
4342
4343                                                 array_push($feeds, $row);
4344                                         }
4345                                 }
4346                         }
4347
4348                         /* Virtual feeds */
4349
4350                         if ($cat_id == -4 || $cat_id == -1) {
4351                                 foreach (array(-1, -2, -3, -4, 0) as $i) {
4352                                         $unread = getFeedUnread($link, $i);
4353
4354                                         if ($unread || !$unread_only) {
4355                                                 $title = getFeedTitle($link, $i);
4356
4357                                                 $row = array(
4358                                                                 "id" => $i,
4359                                                                 "title" => $title,
4360                                                                 "unread" => $unread,
4361                                                                 "cat_id" => -1,
4362                                                         );
4363                                                 array_push($feeds, $row);
4364                                         }
4365
4366                                 }
4367                         }
4368
4369                         /* Real feeds */
4370
4371                         if ($limit) {
4372                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
4373                         } else {
4374                                 $limit_qpart = "";
4375                         }
4376
4377                         if ($cat_id == -4 || $cat_id == -3) {
4378                                 $result = db_query($link, "SELECT
4379                                         id, feed_url, cat_id, title, ".
4380                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4381                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
4382                                                 " ORDER BY cat_id, title " . $limit_qpart);
4383                         } else {
4384
4385                                 if ($cat_id)
4386                                         $cat_qpart = "cat_id = '$cat_id'";
4387                                 else
4388                                         $cat_qpart = "cat_id IS NULL";
4389
4390                                 $result = db_query($link, "SELECT
4391                                         id, feed_url, cat_id, title, ".
4392                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4393                                                 FROM ttrss_feeds WHERE
4394                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
4395                                                 " ORDER BY cat_id, title " . $limit_qpart);
4396                         }
4397
4398                         while ($line = db_fetch_assoc($result)) {
4399
4400                                 $unread = getFeedUnread($link, $line["id"]);
4401
4402                                 $has_icon = feed_has_icon($line['id']);
4403
4404                                 if ($unread || !$unread_only) {
4405
4406                                         $row = array(
4407                                                         "feed_url" => $line["feed_url"],
4408                                                         "title" => $line["title"],
4409                                                         "id" => (int)$line["id"],
4410                                                         "unread" => (int)$unread,
4411                                                         "has_icon" => $has_icon,
4412                                                         "cat_id" => (int)$line["cat_id"],
4413                                                         "last_updated" => strtotime($line["last_updated"])
4414                                                 );
4415
4416                                         array_push($feeds, $row);
4417                                 }
4418                         }
4419
4420                 return $feeds;
4421         }
4422
4423         function api_get_headlines($link, $feed_id, $limit, $offset,
4424                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
4425                                 $include_attachments, $since_id,
4426                                 $search = "", $search_mode = "", $match_on = "") {
4427
4428                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
4429                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
4430                                 $order, $offset, 0, false, $since_id);
4431
4432                         $result = $qfh_ret[0];
4433                         $feed_title = $qfh_ret[1];
4434
4435                         $headlines = array();
4436
4437                         while ($line = db_fetch_assoc($result)) {
4438                                 $is_updated = ($line["last_read"] == "" &&
4439                                         ($line["unread"] != "t" && $line["unread"] != "1"));
4440
4441                                 $tags = explode(",", $line["tag_cache"]);
4442                                 $labels = json_decode($line["label_cache"], true);
4443
4444                                 //if (!$tags) $tags = get_article_tags($link, $line["id"]);
4445                                 //if (!$labels) $labels = get_article_labels($link, $line["id"]);
4446
4447                                 $headline_row = array(
4448                                                 "id" => (int)$line["id"],
4449                                                 "unread" => sql_bool_to_bool($line["unread"]),
4450                                                 "marked" => sql_bool_to_bool($line["marked"]),
4451                                                 "published" => sql_bool_to_bool($line["published"]),
4452                                                 "updated" => strtotime($line["updated"]),
4453                                                 "is_updated" => $is_updated,
4454                                                 "title" => $line["title"],
4455                                                 "link" => $line["link"],
4456                                                 "feed_id" => $line["feed_id"],
4457                                                 "tags" => $tags,
4458                                         );
4459
4460                                         if ($include_attachments)
4461                                                 $headline_row['attachments'] = get_article_enclosures($link,
4462                                                         $line['id']);
4463
4464                                 if ($show_excerpt) {
4465                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
4466                                         $headline_row["excerpt"] = $excerpt;
4467                                 }
4468
4469                                 if ($show_content) {
4470                                         $headline_row["content"] = $line["content_preview"];
4471                                 }
4472
4473                                 // unify label output to ease parsing
4474                                 if ($labels["no-labels"] == 1) $labels = array();
4475
4476                                 $headline_row["labels"] = $labels;
4477
4478                                 array_push($headlines, $headline_row);
4479                         }
4480
4481                         return $headlines;
4482         }
4483
4484         function generate_error_feed($link, $error) {
4485                 $reply = array();
4486
4487                 $reply['headlines']['id'] = -6;
4488                 $reply['headlines']['is_cat'] = false;
4489
4490                 $reply['headlines']['toolbar'] = '';
4491                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
4492
4493                 $reply['headlines-info'] = array("count" => 0,
4494                         "vgroup_last_feed" => '',
4495                         "unread" => 0,
4496                         "disable_cache" => true);
4497
4498                 return $reply;
4499         }
4500
4501
4502         function generate_dashboard_feed($link) {
4503                 $reply = array();
4504
4505                 $reply['headlines']['id'] = -5;
4506                 $reply['headlines']['is_cat'] = false;
4507
4508                 $reply['headlines']['toolbar'] = '';
4509                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
4510
4511                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
4512
4513                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
4514                         WHERE owner_uid = " . $_SESSION['uid']);
4515
4516                 $last_updated = db_fetch_result($result, 0, "last_updated");
4517                 $last_updated = make_local_datetime($link, $last_updated, false);
4518
4519                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
4520
4521                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
4522                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
4523
4524                 $num_errors = db_fetch_result($result, 0, "num_errors");
4525
4526                 if ($num_errors > 0) {
4527                         $reply['headlines']['content'] .= "<br/>";
4528                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
4529                                 __('Some feeds have update errors (click for details)')."</a>";
4530                 }
4531                 $reply['headlines']['content'] .= "</span></p>";
4532
4533                 $reply['headlines-info'] = array("count" => 0,
4534                         "vgroup_last_feed" => '',
4535                         "unread" => 0,
4536                         "disable_cache" => true);
4537
4538                 return $reply;
4539         }
4540
4541         function save_email_address($link, $email) {
4542                 // FIXME: implement persistent storage of emails
4543
4544                 if (!$_SESSION['stored_emails'])
4545                         $_SESSION['stored_emails'] = array();
4546
4547                 if (!in_array($email, $_SESSION['stored_emails']))
4548                         array_push($_SESSION['stored_emails'], $email);
4549         }
4550
4551         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4552                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4553
4554                 $sql_is_cat = bool_to_sql_bool($is_cat);
4555
4556                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4557                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4558                         AND owner_uid = " . $owner_uid);
4559
4560                 if (db_num_rows($result) == 1) {
4561                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4562
4563                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
4564                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
4565                                 AND owner_uid = " . $owner_uid);
4566
4567                         return $key;
4568
4569                 } else {
4570                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
4571                 }
4572         }
4573
4574         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4575
4576                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4577
4578                 $sql_is_cat = bool_to_sql_bool($is_cat);
4579
4580                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4581                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4582                         AND owner_uid = " . $owner_uid);
4583
4584                 if (db_num_rows($result) == 1) {
4585                         return db_fetch_result($result, 0, "access_key");
4586                 } else {
4587                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4588
4589                         $result = db_query($link, "INSERT INTO ttrss_access_keys
4590                                 (access_key, feed_id, is_cat, owner_uid)
4591                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
4592
4593                         return $key;
4594                 }
4595                 return false;
4596         }
4597
4598         /**
4599          * Extracts RSS/Atom feed URLs from the given HTML URL.
4600          *
4601          * @param string $url HTML page URL
4602          *
4603          * @return array Array of feeds. Key is the full URL, value the title
4604          */
4605         function get_feeds_from_html($url, $login = false, $pass = false)
4606         {
4607                 $url     = fix_url($url);
4608                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
4609
4610                 libxml_use_internal_errors(true);
4611
4612                 $content = @fetch_file_contents($url, false, $login, $pass);
4613
4614                 $doc = new DOMDocument();
4615                 $doc->loadHTML($content);
4616                 $xpath = new DOMXPath($doc);
4617                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
4618                 $feedUrls = array();
4619                 foreach ($entries as $entry) {
4620                         if ($entry->hasAttribute('href')) {
4621                                 $title = $entry->getAttribute('title');
4622                                 if ($title == '') {
4623                                         $title = $entry->getAttribute('type');
4624                                 }
4625                                 $feedUrl = rewrite_relative_url(
4626                                         $baseUrl, $entry->getAttribute('href')
4627                                 );
4628                                 $feedUrls[$feedUrl] = $title;
4629                         }
4630                 }
4631                 return $feedUrls;
4632         }
4633
4634         /**
4635          * Checks if the content behind the given URL is a HTML file
4636          *
4637          * @param string $url URL to check
4638          *
4639          * @return boolean True if the URL contains HTML content
4640          */
4641         function url_is_html($url, $login = false, $pass = false) {
4642                 $content = substr(fetch_file_contents($url, false, $login, $pass), 0, 1000);
4643
4644                 if (stripos($content, '<html>') === false
4645                         && stripos($content, '<html ') === false
4646                 ) {
4647                         return false;
4648                 }
4649
4650                 return true;
4651         }
4652
4653         function print_label_select($link, $name, $value, $attributes = "") {
4654
4655                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
4656                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
4657
4658                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
4659                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
4660
4661                 while ($line = db_fetch_assoc($result)) {
4662
4663                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
4664
4665                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
4666                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
4667
4668                 }
4669
4670 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
4671
4672                 print "</select>";
4673
4674
4675         }
4676
4677         function format_article_enclosures($link, $id, $always_display_enclosures,
4678                                         $article_content) {
4679
4680                 $result = get_article_enclosures($link, $id);
4681                 $rv = '';
4682
4683                 if (count($result) > 0) {
4684
4685                         $entries_html = array();
4686                         $entries = array();
4687
4688                         foreach ($result as $line) {
4689
4690                                 $url = $line["content_url"];
4691                                 $ctype = $line["content_type"];
4692
4693                                 if (!$ctype) $ctype = __("unknown type");
4694
4695 #                               $filename = substr($url, strrpos($url, "/")+1);
4696
4697                                 $entry = format_inline_player($link, $url, $ctype);
4698
4699 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4700 #                                       $filename . " (" . $ctype . ")" . "</a>";
4701
4702                                 array_push($entries_html, $entry);
4703
4704                                 $entry = array();
4705
4706                                 $entry["type"] = $ctype;
4707                                 $entry["filename"] = $filename;
4708                                 $entry["url"] = $url;
4709
4710                                 array_push($entries, $entry);
4711                         }
4712
4713                         $rv .= "<div class=\"postEnclosures\">";
4714
4715                         if (!get_pref($link, "STRIP_IMAGES")) {
4716                                 if ($always_display_enclosures ||
4717                                                         !preg_match("/<img/i", $article_content)) {
4718
4719                                         foreach ($entries as $entry) {
4720
4721                                                 if (preg_match("/image/", $entry["type"]) ||
4722                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
4723
4724                                                                 $rv .= "<p><img
4725                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
4726                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
4727                                                 }
4728                                         }
4729                                 }
4730                         }
4731
4732                         if (count($entries) == 1) {
4733                                 $rv .= __("Attachment:") . " ";
4734                         } else {
4735                                 $rv .= __("Attachments:") . " ";
4736                         }
4737
4738                         $rv .= join(", ", $entries_html);
4739
4740                         $rv .= "</div>";
4741                 }
4742
4743                 return $rv;
4744         }
4745
4746         function getLastArticleId($link) {
4747                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
4748                         WHERE owner_uid = " . $_SESSION["uid"]);
4749
4750                 if (db_num_rows($result) == 1) {
4751                         return db_fetch_result($result, 0, "id");
4752                 } else {
4753                         return -1;
4754                 }
4755         }
4756
4757         function build_url($parts) {
4758                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
4759         }
4760
4761         /**
4762          * Converts a (possibly) relative URL to a absolute one.
4763          *
4764          * @param string $url     Base URL (i.e. from where the document is)
4765          * @param string $rel_url Possibly relative URL in the document
4766          *
4767          * @return string Absolute URL
4768          */
4769         function rewrite_relative_url($url, $rel_url) {
4770                 if (strpos($rel_url, "://") !== false) {
4771                         return $rel_url;
4772                 } else if (strpos($rel_url, "/") === 0)
4773                 {
4774                         $parts = parse_url($url);
4775                         $parts['path'] = $rel_url;
4776
4777                         return build_url($parts);
4778
4779                 } else {
4780                         $parts = parse_url($url);
4781                         if (!isset($parts['path'])) {
4782                                 $parts['path'] = '/';
4783                         }
4784                         $dir = $parts['path'];
4785                         if (substr($dir, -1) !== '/') {
4786                                 $dir = dirname($parts['path']);
4787                                 $dir !== '/' && $dir .= '/';
4788                         }
4789                         $parts['path'] = $dir . $rel_url;
4790
4791                         return build_url($parts);
4792                 }
4793         }
4794
4795         function sphinx_search($query, $offset = 0, $limit = 30) {
4796                 require_once 'lib/sphinxapi.php';
4797
4798                 $sphinxClient = new SphinxClient();
4799
4800                 $sphinxClient->SetServer('localhost', 9312);
4801                 $sphinxClient->SetConnectTimeout(1);
4802
4803                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
4804                         'feed_title' => 20));
4805
4806                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
4807                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
4808                 $sphinxClient->SetLimits($offset, $limit, 1000);
4809                 $sphinxClient->SetArrayResult(false);
4810                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
4811
4812                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
4813
4814                 $ids = array();
4815
4816                 if (is_array($result['matches'])) {
4817                         foreach (array_keys($result['matches']) as $int_id) {
4818                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
4819                                 array_push($ids, $ref_id);
4820                         }
4821                 }
4822
4823                 return $ids;
4824         }
4825
4826         function cleanup_tags($link, $days = 14, $limit = 1000) {
4827
4828                 if (DB_TYPE == "pgsql") {
4829                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
4830                 } else if (DB_TYPE == "mysql") {
4831                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
4832                 }
4833
4834                 $tags_deleted = 0;
4835
4836                 while ($limit > 0) {
4837                         $limit_part = 500;
4838
4839                         $query = "SELECT ttrss_tags.id AS id
4840                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
4841                                 WHERE post_int_id = int_id AND $interval_query AND
4842                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
4843
4844                         $result = db_query($link, $query);
4845
4846                         $ids = array();
4847
4848                         while ($line = db_fetch_assoc($result)) {
4849                                 array_push($ids, $line['id']);
4850                         }
4851
4852                         if (count($ids) > 0) {
4853                                 $ids = join(",", $ids);
4854                                 print ".";
4855
4856                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
4857                                 $tags_deleted += db_affected_rows($link, $tmp_result);
4858                         } else {
4859                                 break;
4860                         }
4861
4862                         $limit -= $limit_part;
4863                 }
4864
4865                 print "\n";
4866
4867                 return $tags_deleted;
4868         }
4869
4870         function print_user_stylesheet($link) {
4871                 $value = get_pref($link, 'USER_STYLESHEET');
4872
4873                 if ($value) {
4874                         print "<style type=\"text/css\">";
4875                         print str_replace("<br/>", "\n", $value);
4876                         print "</style>";
4877                 }
4878
4879         }
4880
4881 /*      function rewrite_urls($line) {
4882                 global $url_regex;
4883
4884                 $urls = null;
4885
4886                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
4887                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
4888
4889                 return $result;
4890         } */
4891
4892         function rewrite_urls($html) {
4893                 libxml_use_internal_errors(true);
4894
4895                 $charset_hack = '<head>
4896                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
4897                 </head>';
4898
4899                 $doc = new DOMDocument();
4900                 $doc->loadHTML($charset_hack . $html);
4901                 $xpath = new DOMXPath($doc);
4902
4903                 $entries = $xpath->query('//*/text()');
4904
4905                 foreach ($entries as $entry) {
4906                         if (strstr($entry->wholeText, "://") !== false) {
4907                                 $text = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
4908                                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $entry->wholeText);
4909
4910                                 if ($text != $entry->wholeText) {
4911                                         $cdoc = new DOMDocument();
4912                                         $cdoc->loadHTML($charset_hack . $text);
4913
4914
4915                                         foreach ($cdoc->childNodes as $cnode) {
4916                                                 $cnode = $doc->importNode($cnode, true);
4917
4918                                                 if ($cnode) {
4919                                                         $entry->parentNode->insertBefore($cnode);
4920                                                 }
4921                                         }
4922
4923                                         $entry->parentNode->removeChild($entry);
4924
4925                                 }
4926                         }
4927                 }
4928
4929                 $node = $doc->getElementsByTagName('body')->item(0);
4930
4931                 return $doc->saveXML($node);
4932         }
4933
4934         function filter_to_sql($filter) {
4935                 $query = "";
4936
4937                 if (DB_TYPE == "pgsql")
4938                         $reg_qpart = "~";
4939                 else
4940                         $reg_qpart = "REGEXP";
4941
4942                 switch ($filter["type"]) {
4943                         case "title":
4944                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
4945                                         $filter['reg_exp'] . "')";
4946                                 break;
4947                         case "content":
4948                                 $query = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
4949                                         $filter['reg_exp'] . "')";
4950                                 break;
4951                         case "both":
4952                                 $query = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
4953                                         $filter['reg_exp'] . "') OR LOWER(" .
4954                                         "ttrss_entries.content) $reg_qpart LOWER('" . $filter['reg_exp'] . "')";
4955                                 break;
4956                         case "tag":
4957                                 $query = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
4958                                         $filter['reg_exp'] . "')";
4959                                 break;
4960                         case "link":
4961                                 $query = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
4962                                         $filter['reg_exp'] . "')";
4963                                 break;
4964                         case "date":
4965
4966                                 if ($filter["filter_param"] == "before")
4967                                         $cmp_qpart = "<";
4968                                 else
4969                                         $cmp_qpart = ">=";
4970
4971                                 $timestamp = date("Y-m-d H:N:s", strtotime($filter["reg_exp"]));
4972                                 $query = "ttrss_entries.date_entered $cmp_qpart '$timestamp'";
4973                                 break;
4974                         case "author":
4975                                 $query = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
4976                                         $filter['reg_exp'] . "')";
4977                                 break;
4978                 }
4979
4980                 if ($filter["inverse"])
4981                         $query = "NOT ($query)";
4982
4983                 if ($query) {
4984                         if (DB_TYPE == "pgsql") {
4985                                 $query = " ($query) AND ttrss_entries.date_entered > NOW() - INTERVAL '14 days'";
4986                         } else {
4987                                 $query = " ($query) AND ttrss_entries.date_entered > DATE_SUB(NOW(), INTERVAL 14 DAY)";
4988                         }
4989                         $query .= " AND ";
4990                 }
4991
4992
4993                 return $query;
4994         }
4995
4996         // Status codes:
4997         // -1  - never connected
4998         // 0   - no data received
4999         // 1   - data received successfully
5000         // 2   - did not receive valid data
5001         // >10 - server error, code + 10 (e.g. 16 means server error 6)
5002
5003         function get_linked_feeds($link, $instance_id = false) {
5004                 if ($instance_id)
5005                         $instance_qpart = "id = '$instance_id' AND ";
5006                 else
5007                         $instance_qpart = "";
5008
5009                 if (DB_TYPE == "pgsql") {
5010                         $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'";
5011                 } else {
5012                         $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)";
5013                 }
5014
5015                 $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances
5016                         WHERE $instance_qpart $date_qpart ORDER BY last_connected");
5017
5018                 while ($line = db_fetch_assoc($result)) {
5019                         $id = $line['id'];
5020
5021                         _debug("Updating: " . $line['access_url'] . " ($id)");
5022
5023                         $fetch_url = $line['access_url'] . '/public.php?op=fbexport';
5024                         $post_query = 'key=' . $line['access_key'];
5025
5026                         $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
5027
5028                         // try doing it the old way
5029                         if (!$feeds) {
5030                                 $fetch_url = $line['access_url'] . '/backend.php?op=fbexport';
5031                                 $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
5032                         }
5033
5034                         if ($feeds) {
5035                                 $feeds = json_decode($feeds, true);
5036
5037                                 if ($feeds) {
5038                                         if ($feeds['error']) {
5039                                                 $status = $feeds['error']['code'] + 10;
5040                                         } else {
5041                                                 $status = 1;
5042
5043                                                 if (count($feeds['feeds']) > 0) {
5044
5045                                                         db_query($link, "DELETE FROM ttrss_linked_feeds
5046                                                                 WHERE instance_id = '$id'");
5047
5048                                                         foreach ($feeds['feeds'] as $feed) {
5049                                                                 $feed_url = db_escape_string($feed['feed_url']);
5050                                                                 $title = db_escape_string($feed['title']);
5051                                                                 $subscribers = db_escape_string($feed['subscribers']);
5052                                                                 $site_url = db_escape_string($feed['site_url']);
5053
5054                                                                 db_query($link, "INSERT INTO ttrss_linked_feeds
5055                                                                         (feed_url, site_url, title, subscribers, instance_id, created, updated)
5056                                                                 VALUES
5057                                                                         ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())");
5058                                                         }
5059                                                 } else {
5060                                                         // received 0 feeds, this might indicate that
5061                                                         // the instance on the other hand is rebuilding feedbrowser cache
5062                                                         // we will try again later
5063
5064                                                         // TODO: maybe perform expiration based on updated here?
5065                                                 }
5066
5067                                                 _debug("Processed " . count($feeds['feeds']) . " feeds.");
5068                                         }
5069                                 } else {
5070                                         $status = 2;
5071                                 }
5072
5073                         } else {
5074                                 $status = 0;
5075                         }
5076
5077                         _debug("Status: $status");
5078
5079                         db_query($link, "UPDATE ttrss_linked_instances SET
5080                                 last_status_out = '$status', last_connected = NOW() WHERE id = '$id'");
5081
5082                 }
5083         }
5084
5085         function make_feed_browser($link, $search, $limit, $mode = 1) {
5086
5087                 $owner_uid = $_SESSION["uid"];
5088                 $rv = '';
5089
5090                 if ($search) {
5091                         $search_qpart = "AND (UPPER(feed_url) LIKE UPPER('%$search%') OR
5092                                                 UPPER(title) LIKE UPPER('%$search%'))";
5093                 } else {
5094                         $search_qpart = "";
5095                 }
5096
5097                 if ($mode == 1) {
5098                         /* $result = db_query($link, "SELECT feed_url, subscribers FROM
5099                          ttrss_feedbrowser_cache WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5100                         WHERE tf.feed_url = ttrss_feedbrowser_cache.feed_url
5101                         AND owner_uid = '$owner_uid') $search_qpart
5102                         ORDER BY subscribers DESC LIMIT $limit"); */
5103
5104                         $result = db_query($link, "SELECT feed_url, site_url, title, SUM(subscribers) AS subscribers FROM
5105                                                 (SELECT feed_url, site_url, title, subscribers FROM ttrss_feedbrowser_cache UNION ALL
5106                                                         SELECT feed_url, site_url, title, subscribers FROM ttrss_linked_feeds) AS qqq
5107                                                 WHERE
5108                                                         (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5109                                                                 WHERE tf.feed_url = qqq.feed_url
5110                                                                         AND owner_uid = '$owner_uid') $search_qpart
5111                                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT $limit");
5112
5113                 } else if ($mode == 2) {
5114                         $result = db_query($link, "SELECT *,
5115                                                 (SELECT COUNT(*) FROM ttrss_user_entries WHERE
5116                                                         orig_feed_id = ttrss_archived_feeds.id) AS articles_archived
5117                                                 FROM
5118                                                         ttrss_archived_feeds
5119                                                 WHERE
5120                                                 (SELECT COUNT(*) FROM ttrss_feeds
5121                                                         WHERE ttrss_feeds.feed_url = ttrss_archived_feeds.feed_url AND
5122                                                                 owner_uid = '$owner_uid') = 0   AND
5123                                                 owner_uid = '$owner_uid' $search_qpart
5124                                                 ORDER BY id DESC LIMIT $limit");
5125                 }
5126
5127                 $feedctr = 0;
5128
5129                 while ($line = db_fetch_assoc($result)) {
5130
5131                         if ($mode == 1) {
5132
5133                                 $feed_url = htmlspecialchars($line["feed_url"]);
5134                                 $site_url = htmlspecialchars($line["site_url"]);
5135                                 $subscribers = $line["subscribers"];
5136
5137                                 $check_box = "<input onclick='toggleSelectListRow2(this)'
5138                                                         dojoType=\"dijit.form.CheckBox\"
5139                                                         type=\"checkbox\" \">";
5140
5141                                 $class = ($feedctr % 2) ? "even" : "odd";
5142
5143                                 $site_url = "<a target=\"_blank\"
5144                                                         href=\"$site_url\">
5145                                                         <span class=\"fb_feedTitle\">".
5146                                 htmlspecialchars($line["title"])."</span></a>";
5147
5148                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5149                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5150                                                         style='vertical-align : middle'></a>";
5151
5152                                 $rv .= "<li>$check_box $feed_url $site_url".
5153                                                         "&nbsp;<span class='subscribers'>($subscribers)</span></li>";
5154
5155                         } else if ($mode == 2) {
5156                                 $feed_url = htmlspecialchars($line["feed_url"]);
5157                                 $site_url = htmlspecialchars($line["site_url"]);
5158                                 $title = htmlspecialchars($line["title"]);
5159
5160                                 $check_box = "<input onclick='toggleSelectListRow2(this)' dojoType=\"dijit.form.CheckBox\"
5161                                                         type=\"checkbox\">";
5162
5163                                 $class = ($feedctr % 2) ? "even" : "odd";
5164
5165                                 if ($line['articles_archived'] > 0) {
5166                                         $archived = sprintf(__("%d archived articles"), $line['articles_archived']);
5167                                         $archived = "&nbsp;<span class='subscribers'>($archived)</span>";
5168                                 } else {
5169                                         $archived = '';
5170                                 }
5171
5172                                 $site_url = "<a target=\"_blank\"
5173                                                         href=\"$site_url\">
5174                                                         <span class=\"fb_feedTitle\">".
5175                                 htmlspecialchars($line["title"])."</span></a>";
5176
5177                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5178                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5179                                                         style='vertical-align : middle'></a>";
5180
5181
5182                                 $rv .= "<li id=\"FBROW-".$line["id"]."\">".
5183                                                         "$check_box $feed_url $site_url $archived</li>";
5184                         }
5185
5186                         ++$feedctr;
5187                 }
5188
5189                 if ($feedctr == 0) {
5190                         $rv .= "<li style=\"text-align : center\"><p>".__('No feeds found.')."</p></li>";
5191                 }
5192
5193                 return $rv;
5194         }
5195
5196         if (!function_exists('gzdecode')) {
5197                 function gzdecode($string) { // no support for 2nd argument
5198                         return file_get_contents('compress.zlib://data:who/cares;base64,'.
5199                                 base64_encode($string));
5200                 }
5201         }
5202
5203         function perform_data_import($link, $filename, $owner_uid) {
5204
5205                 $num_imported = 0;
5206                 $num_processed = 0;
5207                 $num_feeds_created = 0;
5208
5209                 $doc = @DOMDocument::load($filename);
5210
5211                 if (!$doc) {
5212                         $contents = file_get_contents($filename);
5213
5214                         if ($contents) {
5215                                 $data = @gzuncompress($contents);
5216                         }
5217
5218                         if (!$data) {
5219                                 $data = @gzdecode($contents);
5220                         }
5221
5222                         if ($data)
5223                                 $doc = DOMDocument::loadXML($data);
5224                 }
5225
5226                 if ($doc) {
5227
5228                         $xpath = new DOMXpath($doc);
5229
5230                         $container = $doc->firstChild;
5231
5232                         if ($container && $container->hasAttribute('schema-version')) {
5233                                 $schema_version = $container->getAttribute('schema-version');
5234
5235                                 if ($schema_version != SCHEMA_VERSION) {
5236                                         print "<p>" .__("Could not import: incorrect schema version.") . "</p>";
5237                                         return;
5238                                 }
5239
5240                         } else {
5241                                 print "<p>" . __("Could not import: unrecognized document format.") . "</p>";
5242                                 return;
5243                         }
5244
5245                         $articles = $xpath->query("//article");
5246
5247                         foreach ($articles as $article_node) {
5248                                 if ($article_node->childNodes) {
5249
5250                                         $ref_id = 0;
5251
5252                                         $article = array();
5253
5254                                         foreach ($article_node->childNodes as $child) {
5255                                                 if ($child->nodeName != 'label_cache')
5256                                                         $article[$child->nodeName] = db_escape_string($child->nodeValue);
5257                                                 else
5258                                                         $article[$child->nodeName] = $child->nodeValue;
5259                                         }
5260
5261                                         //print_r($article);
5262
5263                                         if ($article['guid']) {
5264
5265                                                 ++$num_processed;
5266
5267                                                 //db_query($link, "BEGIN");
5268
5269                                                 //print 'GUID:' . $article['guid'] . "\n";
5270
5271                                                 $result = db_query($link, "SELECT id FROM ttrss_entries
5272                                                         WHERE guid = '".$article['guid']."'");
5273
5274                                                 if (db_num_rows($result) == 0) {
5275
5276                                                         $result = db_query($link,
5277                                                                 "INSERT INTO ttrss_entries
5278                                                                         (title,
5279                                                                         guid,
5280                                                                         link,
5281                                                                         updated,
5282                                                                         content,
5283                                                                         content_hash,
5284                                                                         no_orig_date,
5285                                                                         date_updated,
5286                                                                         date_entered,
5287                                                                         comments,
5288                                                                         num_comments,
5289                                                                         author)
5290                                                                 VALUES
5291                                                                         ('".$article['title']."',
5292                                                                         '".$article['guid']."',
5293                                                                         '".$article['link']."',
5294                                                                         '".$article['updated']."',
5295                                                                         '".$article['content']."',
5296                                                                         '".sha1($article['content'])."',
5297                                                                         false,
5298                                                                         NOW(),
5299                                                                         NOW(),
5300                                                                         '',
5301                                                                         '0',
5302                                                                         '')");
5303
5304                                                         $result = db_query($link, "SELECT id FROM ttrss_entries
5305                                                                 WHERE guid = '".$article['guid']."'");
5306
5307                                                         if (db_num_rows($result) != 0) {
5308                                                                 $ref_id = db_fetch_result($result, 0, "id");
5309                                                         }
5310
5311                                                 } else {
5312                                                         $ref_id = db_fetch_result($result, 0, "id");
5313                                                 }
5314
5315                                                 //print "Got ref ID: $ref_id\n";
5316
5317                                                 if ($ref_id) {
5318
5319                                                         $feed_url = $article['feed_url'];
5320                                                         $feed_title = $article['feed_title'];
5321
5322                                                         $feed = 'NULL';
5323
5324                                                         if ($feed_url && $feed_title) {
5325                                                                 $result = db_query($link, "SELECT id FROM ttrss_feeds
5326                                                                         WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
5327
5328                                                                 if (db_num_rows($result) != 0) {
5329                                                                         $feed = db_fetch_result($result, 0, "id");
5330                                                                 } else {
5331                                                                         // try autocreating feed in Uncategorized...
5332
5333                                                                         $result = db_query($link, "INSERT INTO ttrss_feeds (owner_uid,
5334                                                                                 feed_url, title) VALUES ($owner_uid, '$feed_url', '$feed_title')");
5335
5336                                                                         $result = db_query($link, "SELECT id FROM ttrss_feeds
5337                                                                                 WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
5338
5339                                                                         if (db_num_rows($result) != 0) {
5340                                                                                 ++$num_feeds_created;
5341
5342                                                                                 $feed = db_fetch_result($result, 0, "id");
5343                                                                         }
5344                                                                 }
5345                                                         }
5346
5347                                                         if ($feed != 'NULL')
5348                                                                 $feed_qpart = "feed_id = $feed";
5349                                                         else
5350                                                                 $feed_qpart = "feed_id IS NULL";
5351
5352                                                         //print "$ref_id / $feed / " . $article['title'] . "\n";
5353
5354                                                         $result = db_query($link, "SELECT int_id FROM ttrss_user_entries
5355                                                                 WHERE ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND $feed_qpart");
5356
5357                                                         if (db_num_rows($result) == 0) {
5358
5359                                                                 $marked = bool_to_sql_bool(sql_bool_to_bool($article['marked']));
5360                                                                 $published = bool_to_sql_bool(sql_bool_to_bool($article['published']));
5361                                                                 $score = (int) $article['score'];
5362
5363                                                                 $tag_cache = $article['tag_cache'];
5364                                                                 $label_cache = db_escape_string($article['label_cache']);
5365                                                                 $note = $article['note'];
5366
5367                                                                 //print "Importing " . $article['title'] . "<br/>";
5368
5369                                                                 ++$num_imported;
5370
5371                                                                 $result = db_query($link,
5372                                                                         "INSERT INTO ttrss_user_entries
5373                                                                         (ref_id, owner_uid, feed_id, unread, last_read, marked,
5374                                                                                 published, score, tag_cache, label_cache, uuid, note)
5375                                                                         VALUES ($ref_id, $owner_uid, $feed, false,
5376                                                                                 NULL, $marked, $published, $score, '$tag_cache',
5377                                                                                         '$label_cache', '', '$note')");
5378
5379                                                                 $label_cache = json_decode($label_cache, true);
5380
5381                                                                 if (is_array($label_cache) && $label_cache["no-labels"] != 1) {
5382                                                                         foreach ($label_cache as $label) {
5383
5384                                                                                 label_create($link, $label[1],
5385                                                                                         $label[2], $label[3], $owner_uid);
5386
5387                                                                                 label_add_article($link, $ref_id, $label[1], $owner_uid);
5388
5389                                                                         }
5390                                                                 }
5391
5392                                                                 //db_query($link, "COMMIT");
5393                                                         }
5394                                                 }
5395                                         }
5396                                 }
5397                         }
5398
5399                         print "<p>" .
5400                                 T_sprintf("Finished: %d articles processed, %d imported, %d feeds created.",
5401                                         $num_processed, $num_imported, $num_feeds_created) .
5402                                         "</p>";
5403
5404                 } else {
5405
5406                         print "<p>" . __("Could not load XML document.") . "</p>";
5407
5408                 }
5409         }
5410
5411         function get_random_bytes($length) {
5412                 if (function_exists('openssl_random_pseudo_bytes')) {
5413                         return openssl_random_pseudo_bytes($length);
5414                 } else {
5415                         $output = "";
5416
5417                         for ($i = 0; $i < $length; $i++)
5418                                 $output .= chr(mt_rand(0, 255));
5419
5420                         return $output;
5421                 }
5422         }
5423 ?>