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