include/functions.php

   1 <?php
   2         define('EXPECTED_CONFIG_VERSION', 26);
   3         define('SCHEMA_VERSION', 98);
   4
   5         $fetch_last_error = false;
   6
   7         function __autoload($class) {
   8                 $class_file = str_replace("_", "/", strtolower(basename($class)));
   9
  10                 $file = dirname(__FILE__)."/../classes/$class_file.php";
  11
  12                 if (file_exists($file)) {
  13                         require $file;
  14                 }
  15         }
  16
  17         mb_internal_encoding("UTF-8");
  18         date_default_timezone_set('UTC');
  19         if (defined('E_DEPRECATED')) {
  20                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
  21         } else {
  22                 error_reporting(E_ALL & ~E_NOTICE);
  23         }
  24
  25         require_once 'config.php';
  26
  27         if (DB_TYPE == "pgsql") {
  28                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  29         } else {
  30                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  31         }
  32
  33         define('THEME_VERSION_REQUIRED', 1.1);
  34
  35         /**
  36          * Return available translations names.
  37          *
  38          * @access public
  39          * @return array A array of available translations.
  40          */
  41         function get_translations() {
  42                 $tr = array(
  43                                         "auto"  => "Detect automatically",
  44                                         "ca_CA" => "Català",
  45                                         "en_US" => "English",
  46                                         "es_ES" => "Español",
  47                                         "de_DE" => "Deutsch",
  48                                         "fr_FR" => "Français",
  49                                         "hu_HU" => "Magyar (Hungarian)",
  50                                         "it_IT" => "Italiano",
  51                                         "ja_JP" => "日本語 (Japanese)",
  52                                         "nb_NO" => "Norwegian bokmål",
  53                                         "pl_PL" => "Polski",
  54                                         "ru_RU" => "Русский",
  55                                         "pt_BR" => "Portuguese/Brazil",
  56                                         "zh_CN" => "Simplified Chinese");
  57
  58                 return $tr;
  59         }
  60
  61         require_once "lib/accept-to-gettext.php";
  62         require_once "lib/gettext/gettext.inc";
  63
  64         function startup_gettext() {
  65
  66                 # Get locale from Accept-Language header
  67                 $lang = al2gt(array_keys(get_translations()), "text/html");
  68
  69                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
  70                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
  71                 }
  72
  73                 if ($_COOKIE["ttrss_lang"] && $_COOKIE["ttrss_lang"] != "auto") {
  74                         $lang = $_COOKIE["ttrss_lang"];
  75                 }
  76
  77                 /* In login action of mobile version */
  78                 if ($_POST["language"] && defined('MOBILE_VERSION')) {
  79                         $lang = $_POST["language"];
  80                         $_COOKIE["ttrss_lang"] = $lang;
  81                 }
  82
  83                 if ($lang) {
  84                         if (defined('LC_MESSAGES')) {
  85                                 _setlocale(LC_MESSAGES, $lang);
  86                         } else if (defined('LC_ALL')) {
  87                                 _setlocale(LC_ALL, $lang);
  88                         }
  89
  90                         if (defined('MOBILE_VERSION')) {
  91                                 _bindtextdomain("messages", "../locale");
  92                         } else {
  93                                 _bindtextdomain("messages", "locale");
  94                         }
  95
  96                         _textdomain("messages");
  97                         _bind_textdomain_codeset("messages", "UTF-8");
  98                 }
  99         }
 100
 101         startup_gettext();
 102
 103         require_once 'db-prefs.php';
 104         require_once 'version.php';
 105
 106         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
 107
 108         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 109         define('MAGPIE_USER_AGENT', SELF_USER_AGENT);
 110
 111         ini_set('user_agent', SELF_USER_AGENT);
 112
 113         require_once 'lib/pubsubhubbub/publisher.php';
 114         require_once 'lib/htmLawed.php';
 115
 116         $tz_offset = -1;
 117         $utc_tz = new DateTimeZone('UTC');
 118         $schema_version = false;
 119
 120         /**
 121          * Print a timestamped debug message.
 122          *
 123          * @param string $msg The debug message.
 124          * @return void
 125          */
 126         function _debug($msg) {
 127                 if (defined('QUIET') && QUIET) {
 128                         return;
 129                 }
 130                 $ts = strftime("%H:%M:%S", time());
 131                 if (function_exists('posix_getpid')) {
 132                         $ts = "$ts/" . posix_getpid();
 133                 }
 134                 print "[$ts] $msg\n";
 135         } // function _debug
 136
 137         /**
 138          * Purge a feed old posts.
 139          *
 140          * @param mixed $link A database connection.
 141          * @param mixed $feed_id The id of the purged feed.
 142          * @param mixed $purge_interval Olderness of purged posts.
 143          * @param boolean $debug Set to True to enable the debug. False by default.
 144          * @access public
 145          * @return void
 146          */
 147         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 148
 149                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
 150
 151                 $rows = -1;
 152
 153                 $result = db_query($link,
 154                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 155
 156                 $owner_uid = false;
 157
 158                 if (db_num_rows($result) == 1) {
 159                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 160                 }
 161
 162                 if ($purge_interval == -1 || !$purge_interval) {
 163                         if ($owner_uid) {
 164                                 ccache_update($link, $feed_id, $owner_uid);
 165                         }
 166                         return;
 167                 }
 168
 169                 if (!$owner_uid) return;
 170
 171                 if (FORCE_ARTICLE_PURGE == 0) {
 172                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
 173                                 $owner_uid, false);
 174                 } else {
 175                         $purge_unread = true;
 176                         $purge_interval = FORCE_ARTICLE_PURGE;
 177                 }
 178
 179                 if (!$purge_unread) $query_limit = " unread = false AND ";
 180
 181                 if (DB_TYPE == "pgsql") {
 182                         $pg_version = get_pgsql_version($link);
 183
 184                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 185
 186                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 187                                         ttrss_entries.id = ref_id AND
 188                                         marked = false AND
 189                                         feed_id = '$feed_id' AND
 190                                         $query_limit
 191                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 192
 193                         } else {
 194
 195                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
 196                                         USING ttrss_entries
 197                                         WHERE ttrss_entries.id = ref_id AND
 198                                         marked = false AND
 199                                         feed_id = '$feed_id' AND
 200                                         $query_limit
 201                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 202                         }
 203
 204                         $rows = pg_affected_rows($result);
 205
 206                 } else {
 207
 208 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 209                                 marked = false AND feed_id = '$feed_id' AND
 210                                 (SELECT date_updated FROM ttrss_entries WHERE
 211                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 212
 213                         $result = db_query($link, "DELETE FROM ttrss_user_entries
 214                                 USING ttrss_user_entries, ttrss_entries
 215                                 WHERE ttrss_entries.id = ref_id AND
 216                                 marked = false AND
 217                                 feed_id = '$feed_id' AND
 218                                 $query_limit
 219                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 220
 221                         $rows = mysql_affected_rows($link);
 222
 223                 }
 224
 225                 ccache_update($link, $feed_id, $owner_uid);
 226
 227                 if ($debug) {
 228                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 229                 }
 230         } // function purge_feed
 231
 232         function feed_purge_interval($link, $feed_id) {
 233
 234                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
 235                         WHERE id = '$feed_id'");
 236
 237                 if (db_num_rows($result) == 1) {
 238                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 239                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 240
 241                         if ($purge_interval == 0) $purge_interval = get_pref($link,
 242                                 'PURGE_OLD_DAYS', $owner_uid);
 243
 244                         return $purge_interval;
 245
 246                 } else {
 247                         return -1;
 248                 }
 249         }
 250
 251         function purge_orphans($link, $do_output = false) {
 252
 253                 // purge orphaned posts in main content table
 254                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
 255                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 256
 257                 if ($do_output) {
 258                         $rows = db_affected_rows($link, $result);
 259                         _debug("Purged $rows orphaned posts.");
 260                 }
 261         }
 262
 263         function get_feed_update_interval($link, $feed_id) {
 264                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
 265                         ttrss_feeds WHERE id = '$feed_id'");
 266
 267                 if (db_num_rows($result) == 1) {
 268                         $update_interval = db_fetch_result($result, 0, "update_interval");
 269                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 270
 271                         if ($update_interval != 0) {
 272                                 return $update_interval;
 273                         } else {
 274                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 275                         }
 276
 277                 } else {
 278                         return -1;
 279                 }
 280         }
 281
 282         function fetch_file_contents($url, $type = false, $login = false, $pass = false, $post_query = false) {
 283                 $login = urlencode($login);
 284                 $pass = urlencode($pass);
 285
 286                 global $fetch_last_error;
 287
 288                 if (function_exists('curl_init') && !ini_get("open_basedir")) {
 289                         $ch = curl_init($url);
 290
 291                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
 292                         curl_setopt($ch, CURLOPT_TIMEOUT, 45);
 293                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 294                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 295                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 296                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 297                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 298                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 299                         curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
 300                         curl_setopt($ch, CURLOPT_ENCODING , "gzip");
 301
 302                         if ($post_query) {
 303                                 curl_setopt($ch, CURLOPT_POST, true);
 304                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
 305                         }
 306
 307                         if ($login && $pass)
 308                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 309
 310                         $contents = @curl_exec($ch);
 311
 312                         if ($contents === false) {
 313                                 $fetch_last_error = curl_error($ch);
 314                                 curl_close($ch);
 315                                 return false;
 316                         }
 317
 318                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 319                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 320                         curl_close($ch);
 321
 322                         if ($http_code != 200 || $type && strpos($content_type, "$type") === false) {
 323                                 return false;
 324                         }
 325
 326                         return $contents;
 327                 } else {
 328                         if ($login && $pass ){
 329                                 $url_parts = array();
 330
 331                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 332
 333                                 if ($url_parts[1] && $url_parts[2]) {
 334                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 335                                 }
 336                         }
 337
 338                         $data = @file_get_contents($url);
 339
 340                         if (!$data && function_exists('error_get_last')) {
 341                                 $error = error_get_last();
 342                                 $fetch_last_error = $error["message"];
 343                         }
 344                         return $data;
 345                 }
 346
 347         }
 348
 349         /**
 350          * Try to determine the favicon URL for a feed.
 351          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 352          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 353          *
 354          * @param string $url A feed or page URL
 355          * @access public
 356          * @return mixed The favicon URL, or false if none was found.
 357          */
 358         function get_favicon_url($url) {
 359
 360                 $favicon_url = false;
 361
 362                 if ($html = @fetch_file_contents($url)) {
 363
 364                         libxml_use_internal_errors(true);
 365
 366                         $doc = new DOMDocument();
 367                         $doc->loadHTML($html);
 368                         $xpath = new DOMXPath($doc);
 369
 370                         $base = $xpath->query('/html/head/base');
 371                         foreach ($base as $b) {
 372                                 $url = $b->getAttribute("href");
 373                                 break;
 374                         }
 375
 376                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 377                         if (count($entries) > 0) {
 378                                 foreach ($entries as $entry) {
 379                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 380                                         break;
 381                                 }
 382                         }
 383                 }
 384
 385                 if (!$favicon_url)
 386                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 387
 388                 return $favicon_url;
 389         } // function get_favicon_url
 390
 391         function check_feed_favicon($site_url, $feed, $link) {
 392 #               print "FAVICON [$site_url]: $favicon_url\n";
 393
 394                 $icon_file = ICONS_DIR . "/$feed.ico";
 395
 396                 if (!file_exists($icon_file)) {
 397                         $favicon_url = get_favicon_url($site_url);
 398
 399                         if ($favicon_url) {
 400                                 // Limiting to "image" type misses those served with text/plain
 401                                 $contents = fetch_file_contents($favicon_url); // , "image");
 402
 403                                 if ($contents) {
 404                                         // Crude image type matching.
 405                                         // Patterns gleaned from the file(1) source code.
 406                                         if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
 407                                                 // 0       string  \000\000\001\000        MS Windows icon resource
 408                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
 409                                         }
 410                                         elseif (preg_match('/^GIF8/', $contents)) {
 411                                                 // 0       string          GIF8            GIF image data
 412                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
 413                                         }
 414                                         elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
 415                                                 // 0       string          \x89PNG\x0d\x0a\x1a\x0a         PNG image data
 416                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
 417                                         }
 418                                         elseif (preg_match('/^\xff\xd8/', $contents)) {
 419                                                 // 0       beshort         0xffd8          JPEG image data
 420                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
 421                                         }
 422                                         else {
 423                                                 //error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
 424                                                 $contents = "";
 425                                         }
 426                                 }
 427
 428                                 if ($contents) {
 429                                         $fp = @fopen($icon_file, "w");
 430
 431                                         if ($fp) {
 432                                                 fwrite($fp, $contents);
 433                                                 fclose($fp);
 434                                                 chmod($icon_file, 0644);
 435                                         }
 436                                 }
 437                         }
 438                 }
 439         }
 440
 441         function print_select($id, $default, $values, $attributes = "") {
 442                 print "<select name=\"$id\" id=\"$id\" $attributes>";
 443                 foreach ($values as $v) {
 444                         if ($v == $default)
 445                                 $sel = "selected=\"1\"";
 446                          else
 447                                 $sel = "";
 448
 449                         print "<option value=\"$v\" $sel>$v</option>";
 450                 }
 451                 print "</select>";
 452         }
 453
 454         function print_select_hash($id, $default, $values, $attributes = "") {
 455                 print "<select name=\"$id\" id='$id' $attributes>";
 456                 foreach (array_keys($values) as $v) {
 457                         if ($v == $default)
 458                                 $sel = 'selected="selected"';
 459                          else
 460                                 $sel = "";
 461
 462                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
 463                 }
 464
 465                 print "</select>";
 466         }
 467
 468         function getmicrotime() {
 469                 list($usec, $sec) = explode(" ",microtime());
 470                 return ((float)$usec + (float)$sec);
 471         }
 472
 473         function print_radio($id, $default, $true_is, $values, $attributes = "") {
 474                 foreach ($values as $v) {
 475
 476                         if ($v == $default)
 477                                 $sel = "checked";
 478                          else
 479                                 $sel = "";
 480
 481                         if ($v == $true_is) {
 482                                 $sel .= " value=\"1\"";
 483                         } else {
 484                                 $sel .= " value=\"0\"";
 485                         }
 486
 487                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
 488                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 489
 490                 }
 491         }
 492
 493         function initialize_user_prefs($link, $uid, $profile = false) {
 494
 495                 $uid = db_escape_string($uid);
 496
 497                 if (!$profile) {
 498                         $profile = "NULL";
 499                         $profile_qpart = "AND profile IS NULL";
 500                 } else {
 501                         $profile_qpart = "AND profile = '$profile'";
 502                 }
 503
 504                 if (get_schema_version($link) < 63) $profile_qpart = "";
 505
 506                 db_query($link, "BEGIN");
 507
 508                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
 509
 510                 $u_result = db_query($link, "SELECT pref_name
 511                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
 512
 513                 $active_prefs = array();
 514
 515                 while ($line = db_fetch_assoc($u_result)) {
 516                         array_push($active_prefs, $line["pref_name"]);
 517                 }
 518
 519                 while ($line = db_fetch_assoc($result)) {
 520                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 521 //                              print "adding " . $line["pref_name"] . "<br>";
 522
 523                                 if (get_schema_version($link) < 63) {
 524                                         db_query($link, "INSERT INTO ttrss_user_prefs
 525                                                 (owner_uid,pref_name,value) VALUES
 526                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 527
 528                                 } else {
 529                                         db_query($link, "INSERT INTO ttrss_user_prefs
 530                                                 (owner_uid,pref_name,value, profile) VALUES
 531                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
 532                                 }
 533
 534                         }
 535                 }
 536
 537                 db_query($link, "COMMIT");
 538
 539         }
 540
 541         function get_ssl_certificate_id() {
 542                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
 543                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
 544                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
 545                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
 546                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
 547                 }
 548                 return "";
 549         }
 550
 551         function authenticate_user($link, $login, $password, $check_only = false) {
 552
 553                 if (!SINGLE_USER_MODE) {
 554
 555                         $user_id = false;
 556                         $modules = explode(",", AUTH_MODULES);
 557
 558                         foreach ($modules as $module) {
 559                                 $module_class = "auth_$module";
 560                                 if (class_exists($module_class)) {
 561                                         $authenticator = new $module_class($link);
 562
 563                                         $user_id = (int) $authenticator->authenticate($login, $password);
 564
 565                                         if ($user_id) {
 566                                                 $_SESSION["auth_module"] = $module;
 567                                                 break;
 568                                         }
 569
 570                                 } else {
 571                                         print T_sprintf("Fatal: authentication module %s not found.", $module);
 572                                         die;
 573                                 }
 574                         }
 575
 576                         if ($user_id && !$check_only) {
 577                                 $_SESSION["uid"] = $user_id;
 578
 579                                 $result = db_query($link, "SELECT login,access_level,pwd_hash FROM ttrss_users
 580                                         WHERE id = '$user_id'");
 581
 582                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
 583                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 584                                 $_SESSION["csrf_token"] = sha1(uniqid(rand(), true));
 585
 586                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 587                                         $_SESSION["uid"]);
 588
 589                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 590                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
 591
 592                                 $_SESSION["last_version_check"] = time();
 593
 594                                 initialize_user_prefs($link, $_SESSION["uid"]);
 595
 596                                 return true;
 597                         }
 598
 599                         return false;
 600
 601                 } else {
 602
 603                         $_SESSION["uid"] = 1;
 604                         $_SESSION["name"] = "admin";
 605                         $_SESSION["access_level"] = 10;
 606
 607                         $_SESSION["hide_hello"] = true;
 608                         $_SESSION["hide_logout"] = true;
 609
 610                         $_SESSION["auth_module"] = false;
 611
 612                         if (!$_SESSION["csrf_token"]) {
 613                                 $_SESSION["csrf_token"] = sha1(uniqid(rand(), true));
 614                         }
 615
 616                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
 617
 618                         initialize_user_prefs($link, $_SESSION["uid"]);
 619
 620                         return true;
 621                 }
 622         }
 623
 624         function make_password($length = 8) {
 625
 626                 $password = "";
 627                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
 628
 629         $i = 0;
 630
 631                 while ($i < $length) {
 632                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 633
 634                         if (!strstr($password, $char)) {
 635                                 $password .= $char;
 636                                 $i++;
 637                         }
 638                 }
 639                 return $password;
 640         }
 641
 642         // this is called after user is created to initialize default feeds, labels
 643         // or whatever else
 644
 645         // user preferences are checked on every login, not here
 646
 647         function initialize_user($link, $uid) {
 648
 649                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 650                         values ('$uid', 'Tiny Tiny RSS: New Releases',
 651                         'http://tt-rss.org/releases.rss')");
 652
 653                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 654                         values ('$uid', 'Tiny Tiny RSS: Forum',
 655                                 'http://tt-rss.org/forum/rss.php')");
 656         }
 657
 658         function logout_user() {
 659                 session_destroy();
 660                 if (isset($_COOKIE[session_name()])) {
 661                    setcookie(session_name(), '', time()-42000, '/');
 662                 }
 663         }
 664
 665         function validate_csrf($csrf_token) {
 666                 return $csrf_token == $_SESSION['csrf_token'];
 667         }
 668
 669         function validate_session($link) {
 670                 if (SINGLE_USER_MODE) return true;
 671
 672                 $check_ip = $_SESSION['ip_address'];
 673
 674                 switch (SESSION_CHECK_ADDRESS) {
 675                 case 0:
 676                         $check_ip = '';
 677                         break;
 678                 case 1:
 679                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
 680                         break;
 681                 case 2:
 682                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
 683                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
 684                         break;
 685                 };
 686
 687                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) {
 688                         $_SESSION["login_error_msg"] =
 689                                 __("Session failed to validate (incorrect IP)");
 690                         return false;
 691                 }
 692
 693                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
 694                         return false;
 695
 696                 if ($_SESSION["uid"]) {
 697
 698                         $result = db_query($link,
 699                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
 700
 701                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
 702
 703                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
 704                                 return false;
 705                         }
 706                 }
 707
 708 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
 709
 710                         //print_r($_SESSION);
 711
 712                         if (time() > $_SESSION["cookie_lifetime"]) {
 713                                 return false;
 714                         }
 715                 } */
 716
 717                 return true;
 718         }
 719
 720         function login_sequence($link, $login_form = 0) {
 721                 if (SINGLE_USER_MODE) {
 722                         return authenticate_user($link, "admin", null);
 723                 } else {
 724                         if (!$_SESSION["uid"] || !validate_session($link)) {
 725
 726                                 if (AUTH_AUTO_LOGIN && authenticate_user($link, null, null)) {
 727                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 728                                 } else {
 729                                          authenticate_user($link, null, null, true);
 730                                 }
 731
 732                                 if (!$_SESSION["uid"]) render_login_form($link, $login_form);
 733
 734                         } else {
 735                                 /* bump login timestamp */
 736                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 737                                         $_SESSION["uid"]);
 738
 739                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
 740                                         setcookie("ttrss_lang", $_SESSION["language"],
 741                                                 time() + SESSION_COOKIE_LIFETIME);
 742                                 }
 743                         }
 744                 }
 745         }
 746
 747
 748         /* function login_sequence($link, $mobile = false) {
 749                 $_SESSION["prefs_cache"] = array();
 750
 751                 if (!SINGLE_USER_MODE) {
 752
 753                         $login_action = $_POST["login_action"];
 754
 755                         # try to authenticate user if called from login form
 756                         if ($login_action == "do_login") {
 757                                 $login = db_escape_string($_POST["login"]);
 758                                 $password = $_POST["password"];
 759                                 $remember_me = $_POST["remember_me"];
 760
 761                                 if (authenticate_user($link, $login, $password)) {
 762                                         $_POST["password"] = "";
 763
 764                                         $_SESSION["language"] = $_POST["language"];
 765                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 766                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
 767
 768                                         if ($_POST["profile"]) {
 769
 770                                                 $profile = db_escape_string($_POST["profile"]);
 771
 772                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
 773                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
 774
 775                                                 if (db_num_rows($result) != 0) {
 776                                                         $_SESSION["profile"] = $profile;
 777                                                         $_SESSION["prefs_cache"] = array();
 778                                                 }
 779                                         }
 780
 781                                         if ($_REQUEST['return']) {
 782                                                 header("Location: " . $_REQUEST['return']);
 783                                         } else {
 784                                                 header("Location: " . $_SERVER["REQUEST_URI"]);
 785                                         }
 786
 787                                         exit;
 788
 789                                         return;
 790                                 } else {
 791                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
 792                                 }
 793                         }
 794
 795                         if (!$_SESSION["uid"] || !validate_session($link)) {
 796
 797                                 if (AUTH_AUTO_LOGIN && authenticate_user($link, null, null)) {
 798                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
 799                                 } else {
 800                                          authenticate_user($link, null, null, true);
 801                                     render_login_form($link, $mobile);
 802                                     exit;
 803                                 }
 804                         } else {
 805                                 // bump login timestamp
 806                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 807                                         $_SESSION["uid"]);
 808
 809                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
 810                                         setcookie("ttrss_lang", $_SESSION["language"],
 811                                                 time() + SESSION_COOKIE_LIFETIME);
 812                                 }
 813
 814                                 // try to remove possible duplicates from feed counter cache
 815 //                              ccache_cleanup($link, $_SESSION["uid"]);
 816                         }
 817
 818                 } else {
 819                         return authenticate_user($link, "admin", null);
 820                 }
 821         } */
 822
 823         function truncate_string($str, $max_len, $suffix = '&hellip;') {
 824                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
 825                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
 826                 } else {
 827                         return $str;
 828                 }
 829         }
 830
 831         function theme_image($link, $filename) {
 832                 if ($link) {
 833                         $theme_path = get_user_theme_path($link);
 834
 835                         if ($theme_path && is_file($theme_path.$filename)) {
 836                                 return $theme_path.$filename;
 837                         } else {
 838                                 return $filename;
 839                         }
 840                 } else {
 841                         return $filename;
 842                 }
 843         }
 844
 845         function get_user_theme($link) {
 846
 847                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
 848                         $theme_name = get_pref($link, "_THEME_ID");
 849                         if (is_dir("themes/$theme_name")) {
 850                                 return $theme_name;
 851                         } else {
 852                                 return '';
 853                         }
 854                 } else {
 855                         return '';
 856                 }
 857
 858         }
 859
 860         function get_user_theme_path($link) {
 861                 $theme_path = '';
 862
 863                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
 864                         $theme_name = get_pref($link, "_THEME_ID");
 865
 866                         if ($theme_name && is_dir("themes/$theme_name")) {
 867                                 $theme_path = "themes/$theme_name/";
 868                         } else {
 869                                 $theme_name = '';
 870                         }
 871                 } else {
 872                         $theme_path = '';
 873                 }
 874
 875                 if ($theme_path) {
 876                         if (is_file("$theme_path/theme.ini")) {
 877                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
 878                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
 879                                         return $theme_path;
 880                                 }
 881                         }
 882                 }
 883                 return '';
 884         }
 885
 886         function get_user_theme_options($link) {
 887                 $t = get_user_theme_path($link);
 888
 889                 if ($t) {
 890                         if (is_file("$t/theme.ini")) {
 891                                 $ini = parse_ini_file("$t/theme.ini", true);
 892                                 if ($ini['theme']['version']) {
 893                                         return $ini['theme']['options'];
 894                                 }
 895                         }
 896                 }
 897                 return '';
 898         }
 899
 900         function print_theme_includes($link) {
 901
 902                 $t = get_user_theme_path($link);
 903                 $time = time();
 904
 905                 if ($t) {
 906                         print "<link rel=\"stylesheet\" type=\"text/css\"
 907                                 href=\"$t/theme.css?$time \">";
 908                         if (file_exists("$t/theme.js")) {
 909                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
 910                                         </script>";
 911                         }
 912                 }
 913         }
 914
 915         function get_all_themes() {
 916                 $themes = glob("themes/*");
 917
 918                 asort($themes);
 919
 920                 $rv = array();
 921
 922                 foreach ($themes as $t) {
 923                         if (is_file("$t/theme.ini")) {
 924                                 $ini = parse_ini_file("$t/theme.ini", true);
 925                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
 926                                                         !$ini['theme']['disabled']) {
 927                                         $entry = array();
 928                                         $entry["path"] = $t;
 929                                         $entry["base"] = basename($t);
 930                                         $entry["name"] = $ini['theme']['name'];
 931                                         $entry["version"] = $ini['theme']['version'];
 932                                         $entry["author"] = $ini['theme']['author'];
 933                                         $entry["options"] = $ini['theme']['options'];
 934                                         array_push($rv, $entry);
 935                                 }
 936                         }
 937                 }
 938
 939                 return $rv;
 940         }
 941
 942         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
 943
 944                 try {
 945                         $source_tz = new DateTimeZone($source_tz);
 946                 } catch (Exception $e) {
 947                         $source_tz = new DateTimeZone('UTC');
 948                 }
 949
 950                 try {
 951                         $dest_tz = new DateTimeZone($dest_tz);
 952                 } catch (Exception $e) {
 953                         $dest_tz = new DateTimeZone('UTC');
 954                 }
 955
 956                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
 957                 return $dt->format('U') + $dest_tz->getOffset($dt);
 958         }
 959
 960         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
 961                                         $no_smart_dt = false) {
 962
 963                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 964                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
 965
 966                 global $utc_tz;
 967                 global $tz_offset;
 968
 969                 # We store date in UTC internally
 970                 $dt = new DateTime($timestamp, $utc_tz);
 971
 972                 if ($tz_offset == -1) {
 973
 974                         $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
 975
 976                         try {
 977                                 $user_tz = new DateTimeZone($user_tz_string);
 978                         } catch (Exception $e) {
 979                                 $user_tz = $utc_tz;
 980                         }
 981
 982                         $tz_offset = $user_tz->getOffset($dt);
 983                 }
 984
 985                 $user_timestamp = $dt->format('U') + $tz_offset;
 986
 987                 if (!$no_smart_dt) {
 988                         return smart_date_time($link, $user_timestamp,
 989                                 $tz_offset, $owner_uid);
 990                 } else {
 991                         if ($long)
 992                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
 993                         else
 994                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
 995
 996                         return date($format, $user_timestamp);
 997                 }
 998         }
 999
1000         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
1001                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1002
1003                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
1004                         return date("G:i", $timestamp);
1005                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
1006                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
1007                         return date($format, $timestamp);
1008                 } else {
1009                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
1010                         return date($format, $timestamp);
1011                 }
1012         }
1013
1014         function sql_bool_to_bool($s) {
1015                 if ($s == "t" || $s == "1" || $s == "true") {
1016                         return true;
1017                 } else {
1018                         return false;
1019                 }
1020         }
1021
1022         function bool_to_sql_bool($s) {
1023                 if ($s) {
1024                         return "true";
1025                 } else {
1026                         return "false";
1027                 }
1028         }
1029
1030         // Session caching removed due to causing wrong redirects to upgrade
1031         // script when get_schema_version() is called on an obsolete session
1032         // created on a previous schema version.
1033         function get_schema_version($link, $nocache = false) {
1034                 global $schema_version;
1035
1036                 if (!$schema_version) {
1037                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
1038                         $version = db_fetch_result($result, 0, "schema_version");
1039                         $schema_version = $version;
1040                         return $version;
1041                 } else {
1042                         return $schema_version;
1043                 }
1044         }
1045
1046         function sanity_check($link) {
1047                 require_once 'errors.php';
1048
1049                 $error_code = 0;
1050                 $schema_version = get_schema_version($link, true);
1051
1052                 if ($schema_version != SCHEMA_VERSION) {
1053                         $error_code = 5;
1054                 }
1055
1056                 if (DB_TYPE == "mysql") {
1057                         $result = db_query($link, "SELECT true", false);
1058                         if (db_num_rows($result) != 1) {
1059                                 $error_code = 10;
1060                         }
1061                 }
1062
1063                 if (db_escape_string("testTEST") != "testTEST") {
1064                         $error_code = 12;
1065                 }
1066
1067                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
1068         }
1069
1070         function file_is_locked($filename) {
1071                 if (function_exists('flock')) {
1072                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
1073                         if ($fp) {
1074                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1075                                         flock($fp, LOCK_UN);
1076                                         fclose($fp);
1077                                         return false;
1078                                 }
1079                                 fclose($fp);
1080                                 return true;
1081                         } else {
1082                                 return false;
1083                         }
1084                 }
1085                 return true; // consider the file always locked and skip the test
1086         }
1087
1088         function make_lockfile($filename) {
1089                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1090
1091                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1092                         if (function_exists('posix_getpid')) {
1093                                 fwrite($fp, posix_getpid() . "\n");
1094                         }
1095                         return $fp;
1096                 } else {
1097                         return false;
1098                 }
1099         }
1100
1101         function make_stampfile($filename) {
1102                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
1103
1104                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1105                         fwrite($fp, time() . "\n");
1106                         flock($fp, LOCK_UN);
1107                         fclose($fp);
1108                         return true;
1109                 } else {
1110                         return false;
1111                 }
1112         }
1113
1114         function sql_random_function() {
1115                 if (DB_TYPE == "mysql") {
1116                         return "RAND()";
1117                 } else {
1118                         return "RANDOM()";
1119                 }
1120         }
1121
1122         function catchup_feed($link, $feed, $cat_view, $owner_uid = false, $max_id = false) {
1123
1124                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
1125
1126                         //if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1127
1128                         $ref_check_qpart = ($max_id &&
1129                                 !get_pref($link, 'REVERSE_HEADLINES')) ? "ref_id <= '$max_id'" : "true";
1130
1131                         if (is_numeric($feed)) {
1132                                 if ($cat_view) {
1133
1134                                         if ($feed >= 0) {
1135
1136                                                 if ($feed > 0) {
1137                                                         $children = getChildCategories($link, $feed, $owner_uid);
1138                                                         array_push($children, $feed);
1139
1140                                                         $children = join(",", $children);
1141
1142                                                         $cat_qpart = "cat_id IN ($children)";
1143                                                 } else {
1144                                                         $cat_qpart = "cat_id IS NULL";
1145                                                 }
1146
1147                                                 db_query($link, "UPDATE ttrss_user_entries
1148                                                         SET unread = false,last_read = NOW()
1149                                                         WHERE feed_id IN (SELECT id FROM ttrss_feeds WHERE $cat_qpart)
1150                                                         AND $ref_check_qpart
1151                                                         AND owner_uid = $owner_uid");
1152
1153                                         } else if ($feed == -2) {
1154
1155                                                 db_query($link, "UPDATE ttrss_user_entries
1156                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
1157                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
1158                                                                 AND $ref_check_qpart
1159                                                                 AND unread = true AND owner_uid = $owner_uid");
1160                                         }
1161
1162                                 } else if ($feed > 0) {
1163
1164                                         db_query($link, "UPDATE ttrss_user_entries
1165                                                         SET unread = false,last_read = NOW()
1166                                                         WHERE feed_id = '$feed'
1167                                                         AND $ref_check_qpart
1168                                                         AND owner_uid = $owner_uid");
1169
1170                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
1171
1172                                         if ($feed == -1) {
1173                                                 db_query($link, "UPDATE ttrss_user_entries
1174                                                         SET unread = false,last_read = NOW()
1175                                                         WHERE marked = true
1176                                                         AND $ref_check_qpart
1177                                                         AND owner_uid = $owner_uid");
1178                                         }
1179
1180                                         if ($feed == -2) {
1181                                                 db_query($link, "UPDATE ttrss_user_entries
1182                                                         SET unread = false,last_read = NOW()
1183                                                         WHERE published = true
1184                                                         AND $ref_check_qpart
1185                                                         AND owner_uid = $owner_uid");
1186                                         }
1187
1188                                         if ($feed == -3) {
1189
1190                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
1191
1192                                                 if (DB_TYPE == "pgsql") {
1193                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
1194                                                 } else {
1195                                                         $match_part = "updated > DATE_SUB(NOW(),
1196                                                                 INTERVAL $intl HOUR) ";
1197                                                 }
1198
1199                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
1200                                                         ttrss_user_entries WHERE $match_part AND
1201                                                         unread = true AND
1202                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
1203                                                         owner_uid = $owner_uid");
1204
1205                                                 $affected_ids = array();
1206
1207                                                 while ($line = db_fetch_assoc($result)) {
1208                                                         array_push($affected_ids, $line["id"]);
1209                                                 }
1210
1211                                                 catchupArticlesById($link, $affected_ids, 0);
1212                                         }
1213
1214                                         if ($feed == -4) {
1215                                                 db_query($link, "UPDATE ttrss_user_entries
1216                                                         SET unread = false,last_read = NOW()
1217                                                         WHERE $ref_check_qpart AND owner_uid = $owner_uid");
1218                                         }
1219
1220                                 } else if ($feed < -10) { // label
1221
1222                                         $label_id = -$feed - 11;
1223
1224                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
1225                                                 SET unread = false, last_read = NOW()
1226                                                         WHERE label_id = '$label_id' AND unread = true
1227                                                         AND $ref_check_qpart
1228                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
1229
1230                                 }
1231
1232                                 ccache_update($link, $feed, $owner_uid, $cat_view);
1233
1234                         } else { // tag
1235                                 db_query($link, "BEGIN");
1236
1237                                 $tag_name = db_escape_string($feed);
1238
1239                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
1240                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
1241
1242                                 while ($line = db_fetch_assoc($result)) {
1243                                         db_query($link, "UPDATE ttrss_user_entries SET
1244                                                 unread = false, last_read = NOW()
1245                                                 WHERE $ref_check_qpart AND int_id = " . $line["post_int_id"]);
1246                                 }
1247                                 db_query($link, "COMMIT");
1248                         }
1249         }
1250
1251         function getAllCounters($link, $omode = "flc", $active_feed = false) {
1252
1253                 if (!$omode) $omode = "flc";
1254
1255                 $data = getGlobalCounters($link);
1256
1257                 $data = array_merge($data, getVirtCounters($link));
1258
1259                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
1260                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
1261                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
1262                 if (strchr($omode, "c")) $data = array_merge($data, getCategoryCounters($link));
1263
1264                 return $data;
1265         }
1266
1267         function getCategoryTitle($link, $cat_id) {
1268
1269                 if ($cat_id == -1) {
1270                         return __("Special");
1271                 } else if ($cat_id == -2) {
1272                         return __("Labels");
1273                 } else {
1274
1275                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
1276                                 id = '$cat_id'");
1277
1278                         if (db_num_rows($result) == 1) {
1279                                 return db_fetch_result($result, 0, "title");
1280                         } else {
1281                                 return __("Uncategorized");
1282                         }
1283                 }
1284         }
1285
1286
1287         function getCategoryCounters($link) {
1288                 $ret_arr = array();
1289
1290                 /* Labels category */
1291
1292                 $cv = array("id" => -2, "kind" => "cat",
1293                         "counter" => getCategoryUnread($link, -2));
1294
1295                 array_push($ret_arr, $cv);
1296
1297                 $result = db_query($link, "SELECT id AS cat_id, value AS unread,
1298                         (SELECT COUNT(id) FROM ttrss_feed_categories AS c2
1299                                 WHERE c2.parent_cat = ttrss_feed_categories.id) AS num_children
1300                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
1301                         WHERE ttrss_cat_counters_cache.feed_id = id AND
1302                         ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid AND
1303                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
1304
1305                 while ($line = db_fetch_assoc($result)) {
1306                         $line["cat_id"] = (int) $line["cat_id"];
1307
1308                         if ($line["num_children"] > 0) {
1309                                 $child_counter = getCategoryChildrenUnread($link, $line["cat_id"], $_SESSION["uid"]);
1310                         } else {
1311                                 $child_counter = 0;
1312                         }
1313
1314                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
1315                                 "counter" => $line["unread"] + $child_counter);
1316
1317                         array_push($ret_arr, $cv);
1318                 }
1319
1320                 /* Special case: NULL category doesn't actually exist in the DB */
1321
1322                 $cv = array("id" => 0, "kind" => "cat",
1323                         "counter" => (int) ccache_find($link, 0, $_SESSION["uid"], true));
1324
1325                 array_push($ret_arr, $cv);
1326
1327                 return $ret_arr;
1328         }
1329
1330         // only accepts real cats (>= 0)
1331         function getCategoryChildrenUnread($link, $cat, $owner_uid = false) {
1332                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1333
1334                 $result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE parent_cat = '$cat'
1335                                 AND owner_uid = $owner_uid");
1336
1337                 $unread = 0;
1338
1339                 while ($line = db_fetch_assoc($result)) {
1340                         $unread += getCategoryUnread($link, $line["id"], $owner_uid);
1341                         $unread += getCategoryChildrenUnread($link, $line["id"], $owner_uid);
1342                 }
1343
1344                 return $unread;
1345         }
1346
1347         function getCategoryUnread($link, $cat, $owner_uid = false) {
1348
1349                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1350
1351                 if ($cat >= 0) {
1352
1353                         if ($cat != 0) {
1354                                 $cat_query = "cat_id = '$cat'";
1355                         } else {
1356                                 $cat_query = "cat_id IS NULL";
1357                         }
1358
1359                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
1360                                         AND owner_uid = " . $owner_uid);
1361
1362                         $cat_feeds = array();
1363                         while ($line = db_fetch_assoc($result)) {
1364                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
1365                         }
1366
1367                         if (count($cat_feeds) == 0) return 0;
1368
1369                         $match_part = implode(" OR ", $cat_feeds);
1370
1371                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
1372                                 FROM ttrss_user_entries
1373                                 WHERE   unread = true AND ($match_part)
1374                                 AND owner_uid = " . $owner_uid);
1375
1376                         $unread = 0;
1377
1378                         # this needs to be rewritten
1379                         while ($line = db_fetch_assoc($result)) {
1380                                 $unread += $line["unread"];
1381                         }
1382
1383                         return $unread;
1384                 } else if ($cat == -1) {
1385                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
1386                 } else if ($cat == -2) {
1387
1388                         $result = db_query($link, "
1389                                 SELECT COUNT(unread) AS unread FROM
1390                                         ttrss_user_entries, ttrss_user_labels2
1391                                 WHERE article_id = ref_id AND unread = true
1392                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
1393
1394                         $unread = db_fetch_result($result, 0, "unread");
1395
1396                         return $unread;
1397
1398                 }
1399         }
1400
1401         function getFeedUnread($link, $feed, $is_cat = false) {
1402                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
1403         }
1404
1405         function getLabelUnread($link, $label_id, $owner_uid = false) {
1406                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1407
1408                 $result = db_query($link, "SELECT COUNT(ref_id) AS unread FROM ttrss_user_entries, ttrss_user_labels2
1409                         WHERE owner_uid = '$owner_uid' AND unread = true AND label_id = '$label_id' AND article_id = ref_id");
1410
1411                 if (db_num_rows($result) != 0) {
1412                         return db_fetch_result($result, 0, "unread");
1413                 } else {
1414                         return 0;
1415                 }
1416         }
1417
1418         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
1419                 $owner_uid = false) {
1420
1421                 $n_feed = (int) $feed;
1422                 $need_entries = false;
1423
1424                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
1425
1426                 if ($unread_only) {
1427                         $unread_qpart = "unread = true";
1428                 } else {
1429                         $unread_qpart = "true";
1430                 }
1431
1432                 if ($is_cat) {
1433                         return getCategoryUnread($link, $n_feed, $owner_uid);
1434                 } else if ($n_feed == -6) {
1435                         return 0;
1436                 } else if ($feed != "0" && $n_feed == 0) {
1437
1438                         $feed = db_escape_string($feed);
1439
1440                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
1441                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1442                                         AND ref_id = id AND $unread_qpart)) AS count FROM ttrss_tags
1443                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
1444                         return db_fetch_result($result, 0, "count");
1445
1446                 } else if ($n_feed == -1) {
1447                         $match_part = "marked = true";
1448                 } else if ($n_feed == -2) {
1449                         $match_part = "published = true";
1450                 } else if ($n_feed == -3) {
1451                         $match_part = "unread = true AND score >= 0";
1452
1453                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
1454
1455                         if (DB_TYPE == "pgsql") {
1456                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
1457                         } else {
1458                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
1459                         }
1460
1461                         $need_entries = true;
1462
1463                 } else if ($n_feed == -4) {
1464                         $match_part = "true";
1465                 } else if ($n_feed >= 0) {
1466
1467                         if ($n_feed != 0) {
1468                                 $match_part = "feed_id = '$n_feed'";
1469                         } else {
1470                                 $match_part = "feed_id IS NULL";
1471                         }
1472
1473                 } else if ($feed < -10) {
1474
1475                         $label_id = -$feed - 11;
1476
1477                         return getLabelUnread($link, $label_id, $owner_uid);
1478
1479                 }
1480
1481                 if ($match_part) {
1482
1483                         if ($need_entries) {
1484                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
1485                                 $from_where = "ttrss_entries.id = ttrss_user_entries.ref_id AND";
1486                         } else {
1487                                 $from_qpart = "ttrss_user_entries";
1488                         }
1489
1490                         $query = "SELECT count(int_id) AS unread
1491                                 FROM $from_qpart WHERE
1492                                 $unread_qpart AND $from_where ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
1493
1494                         //echo "[$feed/$query]\n";
1495
1496                         $result = db_query($link, $query);
1497
1498                 } else {
1499
1500                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
1501                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
1502                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
1503                                 AND $unread_qpart AND ttrss_tags.owner_uid = " . $owner_uid);
1504                 }
1505
1506                 $unread = db_fetch_result($result, 0, "unread");
1507
1508                 return $unread;
1509         }
1510
1511         function getGlobalUnread($link, $user_id = false) {
1512
1513                 if (!$user_id) {
1514                         $user_id = $_SESSION["uid"];
1515                 }
1516
1517                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
1518                         WHERE owner_uid = '$user_id' AND feed_id > 0");
1519
1520                 $c_id = db_fetch_result($result, 0, "c_id");
1521
1522                 return $c_id;
1523         }
1524
1525         function getGlobalCounters($link, $global_unread = -1) {
1526                 $ret_arr = array();
1527
1528                 if ($global_unread == -1) {
1529                         $global_unread = getGlobalUnread($link);
1530                 }
1531
1532                 $cv = array("id" => "global-unread",
1533                         "counter" => (int) $global_unread);
1534
1535                 array_push($ret_arr, $cv);
1536
1537                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
1538                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1539
1540                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1541
1542                 $cv = array("id" => "subscribed-feeds",
1543                         "counter" => (int) $subscribed_feeds);
1544
1545                 array_push($ret_arr, $cv);
1546
1547                 return $ret_arr;
1548         }
1549
1550         function getTagCounters($link) {
1551
1552                 $ret_arr = array();
1553
1554                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
1555                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
1556                                 AND ref_id = id AND unread = true)) AS count FROM ttrss_tags
1557                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
1558                                 ORDER BY count DESC LIMIT 55");
1559
1560                 $tags = array();
1561
1562                 while ($line = db_fetch_assoc($result)) {
1563                         $tags[$line["tag_name"]] += $line["count"];
1564                 }
1565
1566                 foreach (array_keys($tags) as $tag) {
1567                         $unread = $tags[$tag];
1568                         $tag = htmlspecialchars($tag);
1569
1570                         $cv = array("id" => $tag,
1571                                 "kind" => "tag",
1572                                 "counter" => $unread);
1573
1574                         array_push($ret_arr, $cv);
1575                 }
1576
1577                 return $ret_arr;
1578         }
1579
1580         function getVirtCounters($link) {
1581
1582                 $ret_arr = array();
1583
1584                 for ($i = 0; $i >= -4; $i--) {
1585
1586                         $count = getFeedUnread($link, $i);
1587
1588                         $cv = array("id" => $i,
1589                                 "counter" => (int) $count);
1590
1591 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1592 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
1593
1594                         array_push($ret_arr, $cv);
1595                 }
1596
1597                 return $ret_arr;
1598         }
1599
1600         function getLabelCounters($link, $descriptions = false) {
1601
1602                 $ret_arr = array();
1603
1604                 $owner_uid = $_SESSION["uid"];
1605
1606                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
1607                         WHERE owner_uid = '$owner_uid'");
1608
1609                 while ($line = db_fetch_assoc($result)) {
1610
1611                         $id = -$line["id"] - 11;
1612
1613                         $label_name = $line["caption"];
1614                         $count = getFeedUnread($link, $id);
1615
1616                         $cv = array("id" => $id,
1617                                 "counter" => (int) $count);
1618
1619                         if ($descriptions)
1620                                 $cv["description"] = $label_name;
1621
1622 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1623 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
1624
1625                         array_push($ret_arr, $cv);
1626                 }
1627
1628                 return $ret_arr;
1629         }
1630
1631         function getFeedCounters($link, $active_feed = false) {
1632
1633                 $ret_arr = array();
1634
1635                 $query = "SELECT ttrss_feeds.id,
1636                                 ttrss_feeds.title,
1637                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
1638                                 last_error, value AS count
1639                         FROM ttrss_feeds, ttrss_counters_cache
1640                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
1641                                 AND ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid
1642                                 AND ttrss_counters_cache.feed_id = id";
1643
1644                 $result = db_query($link, $query);
1645                 $fctrs_modified = false;
1646
1647                 while ($line = db_fetch_assoc($result)) {
1648
1649                         $id = $line["id"];
1650                         $count = $line["count"];
1651                         $last_error = htmlspecialchars($line["last_error"]);
1652
1653                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
1654
1655                         $has_img = feed_has_icon($id);
1656
1657                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
1658                                 $last_updated = '';
1659
1660                         $cv = array("id" => $id,
1661                                 "updated" => $last_updated,
1662                                 "counter" => (int) $count,
1663                                 "has_img" => (int) $has_img);
1664
1665                         if ($last_error)
1666                                 $cv["error"] = $last_error;
1667
1668 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
1669 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
1670
1671                         if ($active_feed && $id == $active_feed)
1672                                 $cv["title"] = truncate_string($line["title"], 30);
1673
1674                         array_push($ret_arr, $cv);
1675
1676                 }
1677
1678                 return $ret_arr;
1679         }
1680
1681         function get_pgsql_version($link) {
1682                 $result = db_query($link, "SELECT version() AS version");
1683                 $version = explode(" ", db_fetch_result($result, 0, "version"));
1684                 return $version[1];
1685         }
1686
1687         /**
1688          * @return array (code => Status code, message => error message if available)
1689          *
1690          *                 0 - OK, Feed already exists
1691          *                 1 - OK, Feed added
1692          *                 2 - Invalid URL
1693          *                 3 - URL content is HTML, no feeds available
1694          *                 4 - URL content is HTML which contains multiple feeds.
1695          *                     Here you should call extractfeedurls in rpc-backend
1696          *                     to get all possible feeds.
1697          *                 5 - Couldn't download the URL content.
1698          */
1699         function subscribe_to_feed($link, $url, $cat_id = 0,
1700                         $auth_login = '', $auth_pass = '', $need_auth = false) {
1701
1702                 global $fetch_last_error;
1703
1704                 require_once "include/rssfuncs.php";
1705
1706                 $url = fix_url($url);
1707
1708                 if (!$url || !validate_feed_url($url)) return array("code" => 2);
1709
1710                 $update_method = 0;
1711
1712                 $contents = @fetch_file_contents($url, false, $auth_login, $auth_pass);
1713
1714                 if (!$contents) {
1715                         return array("code" => 5, "message" => $fetch_last_error);
1716                 }
1717
1718                 if (is_html($contents)) {
1719                         $feedUrls = get_feeds_from_html($url, $contents);
1720
1721                         if (count($feedUrls) == 0) {
1722                                 return array("code" => 3);
1723                         } else if (count($feedUrls) > 1) {
1724                                 return array("code" => 4, "feeds" => $feedUrls);
1725                         }
1726                         //use feed url as new URL
1727                         $url = key($feedUrls);
1728                 }
1729
1730                 if ($cat_id == "0" || !$cat_id) {
1731                         $cat_qpart = "NULL";
1732                 } else {
1733                         $cat_qpart = "'$cat_id'";
1734                 }
1735
1736                 $result = db_query($link,
1737                         "SELECT id FROM ttrss_feeds
1738                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
1739
1740                 if (db_num_rows($result) == 0) {
1741                         $result = db_query($link,
1742                                 "INSERT INTO ttrss_feeds
1743                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
1744                                 VALUES ('".$_SESSION["uid"]."', '$url',
1745                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
1746
1747                         $result = db_query($link,
1748                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
1749                                         AND owner_uid = " . $_SESSION["uid"]);
1750
1751                         $feed_id = db_fetch_result($result, 0, "id");
1752
1753                         if ($feed_id) {
1754                                 update_rss_feed($link, $feed_id, true);
1755                         }
1756
1757                         return array("code" => 1);
1758                 } else {
1759                         return array("code" => 0);
1760                 }
1761         }
1762
1763         function print_feed_select($link, $id, $default_id = "",
1764                 $attributes = "", $include_all_feeds = true,
1765                 $root_id = false, $nest_level = 0) {
1766
1767                 if (!$root_id) {
1768                         print "<select id=\"$id\" name=\"$id\" $attributes>";
1769                         if ($include_all_feeds) {
1770                                 $is_selected = ("0" == $default_id) ? "selected=\"1\"" : "";
1771                                 print "<option $is_selected value=\"0\">".__('All feeds')."</option>";
1772                         }
1773                 }
1774
1775                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
1776
1777                         if ($root_id)
1778                                 $parent_qpart = "parent_cat = '$root_id'";
1779                         else
1780                                 $parent_qpart = "parent_cat IS NULL";
1781
1782                         $result = db_query($link, "SELECT id,title,
1783                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1784                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1785                                 FROM ttrss_feed_categories
1786                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1787
1788                         while ($line = db_fetch_assoc($result)) {
1789
1790                                 for ($i = 0; $i < $nest_level; $i++)
1791                                         $line["title"] = " - " . $line["title"];
1792
1793                                 $is_selected = ("CAT:".$line["id"] == $default_id) ? "selected=\"1\"" : "";
1794
1795                                 printf("<option $is_selected value='CAT:%d'>%s</option>",
1796                                         $line["id"], htmlspecialchars($line["title"]));
1797
1798                                 if ($line["num_children"] > 0)
1799                                         print_feed_select($link, $id, $default_id, $attributes,
1800                                                 $include_all_feeds, $line["id"], $nest_level+1);
1801
1802                                 $feed_result = db_query($link, "SELECT id,title FROM ttrss_feeds
1803                                         WHERE cat_id = '".$line["id"]."' AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1804
1805                                 while ($fline = db_fetch_assoc($feed_result)) {
1806                                         $is_selected = ($fline["id"] == $default_id) ? "selected=\"1\"" : "";
1807
1808                                         $fline["title"] = " + " . $fline["title"];
1809
1810                                         for ($i = 0; $i < $nest_level; $i++)
1811                                                 $fline["title"] = " - " . $fline["title"];
1812
1813                                         printf("<option $is_selected value='%d'>%s</option>",
1814                                                 $fline["id"], htmlspecialchars($fline["title"]));
1815                                 }
1816                         }
1817
1818                         if (!$root_id) {
1819                                 $is_selected = ($default_id == "CAT:0") ? "selected=\"1\"" : "";
1820
1821                                 printf("<option $is_selected value='CAT:0'>%s</option>",
1822                                         __("Uncategorized"));
1823
1824                                 $feed_result = db_query($link, "SELECT id,title FROM ttrss_feeds
1825                                         WHERE cat_id IS NULL AND owner_uid = ".$_SESSION["uid"] . " ORDER BY title");
1826
1827                                 while ($fline = db_fetch_assoc($feed_result)) {
1828                                         $is_selected = ($fline["id"] == $default_id && !$default_is_cat) ? "selected=\"1\"" : "";
1829
1830                                         $fline["title"] = " + " . $fline["title"];
1831
1832                                         for ($i = 0; $i < $nest_level; $i++)
1833                                                 $fline["title"] = " - " . $fline["title"];
1834
1835                                         printf("<option $is_selected value='%d'>%s</option>",
1836                                                 $fline["id"], htmlspecialchars($fline["title"]));
1837                                 }
1838                         }
1839
1840                 } else {
1841                         $result = db_query($link, "SELECT id,title FROM ttrss_feeds
1842                                 WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
1843
1844                         while ($line = db_fetch_assoc($result)) {
1845
1846                                 $is_selected = ($line["id"] == $default_id) ? "selected=\"1\"" : "";
1847
1848                                 printf("<option $is_selected value='%d'>%s</option>",
1849                                         $line["id"], htmlspecialchars($line["title"]));
1850                         }
1851                 }
1852
1853                 if (!$root_id) {
1854                         print "</select>";
1855                 }
1856         }
1857
1858         function print_feed_cat_select($link, $id, $default_id,
1859                 $attributes, $include_all_cats = true, $root_id = false, $nest_level = 0) {
1860
1861                         if (!$root_id) {
1862                                         print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
1863                         }
1864
1865                         if ($root_id)
1866                                 $parent_qpart = "parent_cat = '$root_id'";
1867                         else
1868                                 $parent_qpart = "parent_cat IS NULL";
1869
1870                         $result = db_query($link, "SELECT id,title,
1871                                 (SELECT COUNT(id) FROM ttrss_feed_categories AS c2 WHERE
1872                                         c2.parent_cat = ttrss_feed_categories.id) AS num_children
1873                                 FROM ttrss_feed_categories
1874                                 WHERE owner_uid = ".$_SESSION["uid"]." AND $parent_qpart ORDER BY title");
1875
1876                         while ($line = db_fetch_assoc($result)) {
1877                                 if ($line["id"] == $default_id) {
1878                                         $is_selected = "selected=\"1\"";
1879                                 } else {
1880                                         $is_selected = "";
1881                                 }
1882
1883                                 for ($i = 0; $i < $nest_level; $i++)
1884                                         $line["title"] = " - " . $line["title"];
1885
1886                                 if ($line["title"])
1887                                         printf("<option $is_selected value='%d'>%s</option>",
1888                                                 $line["id"], htmlspecialchars($line["title"]));
1889
1890                                 if ($line["num_children"] > 0)
1891                                         print_feed_cat_select($link, $id, $default_id, $attributes,
1892                                                 $include_all_cats, $line["id"], $nest_level+1);
1893                         }
1894
1895                         if (!$root_id) {
1896                                 if ($include_all_cats) {
1897                                         if (db_num_rows($result) > 0) {
1898                                                 print "<option disabled=\"1\">--------</option>";
1899                                         }
1900
1901                                         if ($default_id == 0) {
1902                                                 $is_selected = "selected=\"1\"";
1903                                         } else {
1904                                                 $is_selected = "";
1905                                         }
1906
1907                                         print "<option $is_selected value=\"0\">".__('Uncategorized')."</option>";
1908                                 }
1909                                 print "</select>";
1910                         }
1911                 }
1912
1913         function checkbox_to_sql_bool($val) {
1914                 return ($val == "on") ? "true" : "false";
1915         }
1916
1917         function getFeedCatTitle($link, $id) {
1918                 if ($id == -1) {
1919                         return __("Special");
1920                 } else if ($id < -10) {
1921                         return __("Labels");
1922                 } else if ($id > 0) {
1923                         $result = db_query($link, "SELECT ttrss_feed_categories.title
1924                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
1925                                         cat_id = ttrss_feed_categories.id");
1926                         if (db_num_rows($result) == 1) {
1927                                 return db_fetch_result($result, 0, "title");
1928                         } else {
1929                                 return __("Uncategorized");
1930                         }
1931                 } else {
1932                         return "getFeedCatTitle($id) failed";
1933                 }
1934
1935         }
1936
1937         function getFeedIcon($id) {
1938                 switch ($id) {
1939                 case 0:
1940                         return "images/archive.png";
1941                         break;
1942                 case -1:
1943                         return "images/mark_set.png";
1944                         break;
1945                 case -2:
1946                         return "images/pub_set.png";
1947                         break;
1948                 case -3:
1949                         return "images/fresh.png";
1950                         break;
1951                 case -4:
1952                         return "images/tag.png";
1953                         break;
1954                 case -6:
1955                         return "images/recently_read.png";
1956                         break;
1957                 default:
1958                         if ($id < -10) {
1959                                 return "images/label.png";
1960                         } else {
1961                                 if (file_exists(ICONS_DIR . "/$id.ico"))
1962                                         return ICONS_URL . "/$id.ico";
1963                         }
1964                         break;
1965                 }
1966         }
1967
1968         function getFeedTitle($link, $id, $cat = false) {
1969                 if ($cat) {
1970                         return getCategoryTitle($link, $id);
1971                 } else if ($id == -1) {
1972                         return __("Starred articles");
1973                 } else if ($id == -2) {
1974                         return __("Published articles");
1975                 } else if ($id == -3) {
1976                         return __("Fresh articles");
1977                 } else if ($id == -4) {
1978                         return __("All articles");
1979                 } else if ($id === 0 || $id === "0") {
1980                         return __("Archived articles");
1981                 } else if ($id == -6) {
1982                         return __("Recently read");
1983                 } else if ($id < -10) {
1984                         $label_id = -$id - 11;
1985                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
1986                         if (db_num_rows($result) == 1) {
1987                                 return db_fetch_result($result, 0, "caption");
1988                         } else {
1989                                 return "Unknown label ($label_id)";
1990                         }
1991
1992                 } else if (is_numeric($id) && $id > 0) {
1993                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
1994                         if (db_num_rows($result) == 1) {
1995                                 return db_fetch_result($result, 0, "title");
1996                         } else {
1997                                 return "Unknown feed ($id)";
1998                         }
1999                 } else {
2000                         return $id;
2001                 }
2002         }
2003
2004         function make_init_params($link) {
2005                 $params = array();
2006
2007                 $params["theme"] = get_user_theme($link);
2008                 $params["theme_options"] = get_user_theme_options($link);
2009
2010                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
2011                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
2012                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
2013                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
2014
2015                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
2016                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
2017                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
2018                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
2019
2020                                  $params[strtolower($param)] = (int) get_pref($link, $param);
2021                  }
2022
2023                 $params["icons_url"] = ICONS_URL;
2024                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
2025                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
2026                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
2027                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
2028                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
2029
2030                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
2031                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2032
2033                 $max_feed_id = db_fetch_result($result, 0, "mid");
2034                 $num_feeds = db_fetch_result($result, 0, "nf");
2035
2036                 $params["max_feed_id"] = (int) $max_feed_id;
2037                 $params["num_feeds"] = (int) $num_feeds;
2038
2039                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
2040
2041                 $params["csrf_token"] = $_SESSION["csrf_token"];
2042
2043                 return $params;
2044         }
2045
2046         function make_runtime_info($link) {
2047                 $data = array();
2048
2049                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
2050                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2051
2052                 $max_feed_id = db_fetch_result($result, 0, "mid");
2053                 $num_feeds = db_fetch_result($result, 0, "nf");
2054
2055                 $data["max_feed_id"] = (int) $max_feed_id;
2056                 $data["num_feeds"] = (int) $num_feeds;
2057
2058                 $data['last_article_id'] = getLastArticleId($link);
2059                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
2060
2061                 if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
2062
2063                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
2064
2065                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
2066
2067                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
2068
2069                                 if ($stamp) {
2070                                         $stamp_delta = time() - $stamp;
2071
2072                                         if ($stamp_delta > 1800) {
2073                                                 $stamp_check = 0;
2074                                         } else {
2075                                                 $stamp_check = 1;
2076                                                 $_SESSION["daemon_stamp_check"] = time();
2077                                         }
2078
2079                                         $data['daemon_stamp_ok'] = $stamp_check;
2080
2081                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
2082
2083                                         $data['daemon_stamp'] = $stamp_fmt;
2084                                 }
2085                         }
2086                 }
2087
2088                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
2089                                 $new_version_details = @check_for_update($link);
2090
2091                                 $data['new_version_available'] = (int) ($new_version_details != false);
2092
2093                                 $_SESSION["last_version_check"] = time();
2094                                 $_SESSION["version_data"] = $new_version_details;
2095                 }
2096
2097                 return $data;
2098         }
2099
2100         function search_to_sql($link, $search, $match_on) {
2101
2102                 $search_query_part = "";
2103
2104                 $keywords = explode(" ", $search);
2105                 $query_keywords = array();
2106
2107                 foreach ($keywords as $k) {
2108                         if (strpos($k, "-") === 0) {
2109                                 $k = substr($k, 1);
2110                                 $not = "NOT";
2111                         } else {
2112                                 $not = "";
2113                         }
2114
2115                         $commandpair = explode(":", mb_strtolower($k), 2);
2116
2117                         if ($commandpair[0] == "note" && $commandpair[1]) {
2118
2119                                 if ($commandpair[1] == "true")
2120                                         array_push($query_keywords, "($not (note IS NOT NULL AND note != ''))");
2121                                 else
2122                                         array_push($query_keywords, "($not (note IS NULL OR note = ''))");
2123
2124                         } else if ($commandpair[0] == "star" && $commandpair[1]) {
2125
2126                                 if ($commandpair[1] == "true")
2127                                         array_push($query_keywords, "($not (marked = true))");
2128                                 else
2129                                         array_push($query_keywords, "($not (marked = false))");
2130
2131                         } else if ($commandpair[0] == "pub" && $commandpair[1]) {
2132
2133                                 if ($commandpair[1] == "true")
2134                                         array_push($query_keywords, "($not (published = true))");
2135                                 else
2136                                         array_push($query_keywords, "($not (published = false))");
2137
2138                         } else if (strpos($k, "@") === 0) {
2139
2140                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
2141                                 $orig_ts = strtotime(substr($k, 1));
2142                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
2143
2144                                 //$k = date("Y-m-d", strtotime(substr($k, 1)));
2145
2146                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
2147                         } else if ($match_on == "both") {
2148                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
2149                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
2150                         } else if ($match_on == "title") {
2151                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
2152                         } else if ($match_on == "content") {
2153                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
2154                         }
2155                 }
2156
2157                 $search_query_part = implode("AND", $query_keywords);
2158
2159                 return $search_query_part;
2160         }
2161
2162         function getParentCategories($link, $cat, $owner_uid) {
2163                 $rv = array();
2164
2165                 $result = db_query($link, "SELECT parent_cat FROM ttrss_feed_categories
2166                         WHERE id = '$cat' AND parent_cat IS NOT NULL AND owner_uid = $owner_uid");
2167
2168                 while ($line = db_fetch_assoc($result)) {
2169                         array_push($rv, $line["parent_cat"]);
2170                         $rv = array_merge($rv, getParentCategories($link, $line["parent_cat"], $owner_uid));
2171                 }
2172
2173                 return $rv;
2174         }
2175
2176         function getChildCategories($link, $cat, $owner_uid) {
2177                 $rv = array();
2178
2179                 $result = db_query($link, "SELECT id FROM ttrss_feed_categories
2180                         WHERE parent_cat = '$cat' AND owner_uid = $owner_uid");
2181
2182                 while ($line = db_fetch_assoc($result)) {
2183                         array_push($rv, $line["id"]);
2184                         $rv = array_merge($rv, getChildCategories($link, $line["id"], $owner_uid));
2185                 }
2186
2187                 return $rv;
2188         }
2189
2190         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0, $include_children = false) {
2191
2192                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2193
2194                 $ext_tables_part = "";
2195
2196                         if ($search) {
2197
2198                                 if (SPHINX_ENABLED) {
2199                                         $ids = join(",", @sphinx_search($search, 0, 500));
2200
2201                                         if ($ids)
2202                                                 $search_query_part = "ref_id IN ($ids) AND ";
2203                                         else
2204                                                 $search_query_part = "ref_id = -1 AND ";
2205
2206                                 } else {
2207                                         $search_query_part = search_to_sql($link, $search, $match_on);
2208                                         $search_query_part .= " AND ";
2209                                 }
2210
2211                         } else {
2212                                 $search_query_part = "";
2213                         }
2214
2215                         if ($filter) {
2216
2217                                 if (DB_TYPE == "pgsql") {
2218                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '14 days' ";
2219                                 } else {
2220                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL 14 DAY) ";
2221                                 }
2222
2223                                 $override_order = "updated DESC";
2224
2225                                 $filter_query_part = filter_to_sql($link, $filter, $owner_uid);
2226
2227                                 // Try to check if SQL regexp implementation chokes on a valid regexp
2228                                 $result = db_query($link, "SELECT true AS true FROM ttrss_entries,
2229                                         ttrss_user_entries, ttrss_feeds, ttrss_feed_categories
2230                                         WHERE $filter_query_part LIMIT 1", false);
2231
2232                                 $test = db_fetch_result($result, 0, "true");
2233
2234                                 if (!$test) {
2235                                         $filter_query_part = "false AND";
2236                                 } else {
2237                                         $filter_query_part .= " AND";
2238                                 }
2239
2240                         } else {
2241                                 $filter_query_part = "";
2242                         }
2243
2244                         if ($since_id) {
2245                                 $since_id_part = "ttrss_entries.id > $since_id AND ";
2246                         } else {
2247                                 $since_id_part = "";
2248                         }
2249
2250                         $view_query_part = "";
2251
2252                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
2253                                 if ($search) {
2254                                         $view_query_part = " ";
2255                                 } else if ($feed != -1) {
2256                                         $unread = getFeedUnread($link, $feed, $cat_view);
2257
2258                                         if ($cat_view && $feed > 0 && $include_children)
2259                                                 $unread += getCategoryChildrenUnread($link, $feed);
2260
2261                                         if ($unread > 0) {
2262                                                 $view_query_part = " unread = true AND ";
2263                                         }
2264                                 }
2265                         }
2266
2267                         if ($view_mode == "marked") {
2268                                 $view_query_part = " marked = true AND ";
2269                         }
2270
2271                         if ($view_mode == "published") {
2272                                 $view_query_part = " published = true AND ";
2273                         }
2274
2275                         if ($view_mode == "unread") {
2276                                 $view_query_part = " unread = true AND ";
2277                         }
2278
2279                         if ($view_mode == "updated") {
2280                                 $view_query_part = " (last_read is null and unread = false) AND ";
2281                         }
2282
2283                         if ($limit > 0) {
2284                                 $limit_query_part = "LIMIT " . $limit;
2285                         }
2286
2287                         $allow_archived = false;
2288
2289                         $vfeed_query_part = "";
2290
2291                         // override query strategy and enable feed display when searching globally
2292                         if ($search && $search_mode == "all_feeds") {
2293                                 $query_strategy_part = "true";
2294                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2295                         /* tags */
2296                         } else if (!is_numeric($feed)) {
2297                                 $query_strategy_part = "true";
2298                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
2299                                         id = feed_id) as feed_title,";
2300                         } else if ($search && $search_mode == "this_cat") {
2301                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2302
2303                                 if ($feed > 0) {
2304                                         if ($include_children) {
2305                                                 $subcats = getChildCategories($link, $feed, $owner_uid);
2306                                                 array_push($subcats, $feed);
2307                                                 $cats_qpart = join(",", $subcats);
2308                                         } else {
2309                                                 $cats_qpart = $feed;
2310                                         }
2311
2312                                         $query_strategy_part = "ttrss_feeds.cat_id IN ($cats_qpart)";
2313
2314                                 } else {
2315                                         $query_strategy_part = "ttrss_feeds.cat_id IS NULL";
2316                                 }
2317
2318                         } else if ($feed > 0) {
2319
2320                                 if ($cat_view) {
2321
2322                                         if ($feed > 0) {
2323                                                 if ($include_children) {
2324                                                         # sub-cats
2325                                                         $subcats = getChildCategories($link, $feed, $owner_uid);
2326
2327                                                         array_push($subcats, $feed);
2328                                                         $query_strategy_part = "cat_id IN (".
2329                                                                         implode(",", $subcats).")";
2330
2331                                                 } else {
2332                                                         $query_strategy_part = "cat_id = '$feed'";
2333                                                 }
2334
2335                                         } else {
2336                                                 $query_strategy_part = "cat_id IS NULL";
2337                                         }
2338
2339                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2340
2341                                 } else {
2342                                         $query_strategy_part = "feed_id = '$feed'";
2343                                 }
2344                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
2345                                 $query_strategy_part = "feed_id IS NULL";
2346                                 $allow_archived = true;
2347                         } else if ($feed == 0 && $cat_view) { // uncategorized
2348                                 $query_strategy_part = "cat_id IS NULL AND feed_id IS NOT NULL";
2349                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2350                         } else if ($feed == -1) { // starred virtual feed
2351                                 $query_strategy_part = "marked = true";
2352                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2353                                 $allow_archived = true;
2354
2355                         } else if ($feed == -2) { // published virtual feed OR labels category
2356
2357                                 if (!$cat_view) {
2358                                         $query_strategy_part = "published = true";
2359                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2360                                         $allow_archived = true;
2361
2362                                         if (!$override_order) $override_order = "last_read DESC, updated DESC";
2363                                 } else {
2364                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2365
2366                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2367
2368                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
2369                                                 ttrss_user_labels2.article_id = ref_id";
2370
2371                                 }
2372                         } else if ($feed == -6) { // recently read
2373                                 $query_strategy_part = "unread = false AND last_read IS NOT NULL";
2374                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2375                                 $allow_archived = true;
2376
2377                                 if (!$override_order) $override_order = "last_read DESC";
2378                         } else if ($feed == -3) { // fresh virtual feed
2379                                 $query_strategy_part = "unread = true AND score >= 0";
2380
2381                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2382
2383                                 if (DB_TYPE == "pgsql") {
2384                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2385                                 } else {
2386                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2387                                 }
2388
2389                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2390                         } else if ($feed == -4) { // all articles virtual feed
2391                                 $query_strategy_part = "true";
2392                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2393                         } else if ($feed <= -10) { // labels
2394                                 $label_id = -$feed - 11;
2395
2396                                 $query_strategy_part = "label_id = '$label_id' AND
2397                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
2398                                         ttrss_user_labels2.article_id = ref_id";
2399
2400                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2401                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
2402                                 $allow_archived = true;
2403
2404                         } else {
2405                                 $query_strategy_part = "true";
2406                         }
2407
2408                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
2409                                 $date_sort_field = "updated";
2410                         } else {
2411                                 $date_sort_field = "date_entered";
2412                         }
2413
2414                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
2415                                 $order_by = "$date_sort_field";
2416                         } else {
2417                                 $order_by = "$date_sort_field DESC";
2418                         }
2419
2420                         if ($view_mode != "noscores") {
2421                                 $order_by = "score DESC, $order_by";
2422                         }
2423
2424                         if ($override_order) {
2425                                 $order_by = $override_order;
2426                         }
2427
2428                         $feed_title = "";
2429
2430                         if ($search) {
2431                                 $feed_title = T_sprintf("Search results: %s", $search);
2432                         } else {
2433                                 if ($cat_view) {
2434                                         $feed_title = getCategoryTitle($link, $feed);
2435                                 } else {
2436                                         if (is_numeric($feed) && $feed > 0) {
2437                                                 $result = db_query($link, "SELECT title,site_url,last_error
2438                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
2439
2440                                                 $feed_title = db_fetch_result($result, 0, "title");
2441                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
2442                                                 $last_error = db_fetch_result($result, 0, "last_error");
2443                                         } else {
2444                                                 $feed_title = getFeedTitle($link, $feed);
2445                                         }
2446                                 }
2447                         }
2448
2449                         $content_query_part = "content as content_preview,";
2450
2451                         if (is_numeric($feed)) {
2452
2453                                 if ($feed >= 0) {
2454                                         $feed_kind = "Feeds";
2455                                 } else {
2456                                         $feed_kind = "Labels";
2457                                 }
2458
2459                                 if ($limit_query_part) {
2460                                         $offset_query_part = "OFFSET $offset";
2461                                 }
2462
2463                                 // proper override_order applied above
2464                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
2465                                         if (!$override_order) {
2466                                                 $order_by = "ttrss_feeds.title, $order_by";
2467                                         } else {
2468                                                 $order_by = "ttrss_feeds.title, $override_order";
2469                                         }
2470                                 }
2471
2472                                 if (!$allow_archived) {
2473                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
2474                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2475
2476                                 } else {
2477                                         $from_qpart = "ttrss_entries$ext_tables_part,ttrss_user_entries
2478                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
2479                                 }
2480
2481                                 $query = "SELECT DISTINCT
2482                                                 date_entered,
2483                                                 guid,
2484                                                 ttrss_entries.id,ttrss_entries.title,
2485                                                 updated,
2486                                                 label_cache,
2487                                                 tag_cache,
2488                                                 always_display_enclosures,
2489                                                 site_url,
2490                                                 note,
2491                                                 num_comments,
2492                                                 comments,
2493                                                 int_id,
2494                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
2495                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
2496                                                 $vfeed_query_part
2497                                                 $content_query_part
2498                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
2499                                                 author,score
2500                                         FROM
2501                                                 $from_qpart
2502                                         WHERE
2503                                         $feed_check_qpart
2504                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2505                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
2506                                         $search_query_part
2507                                         $filter_query_part
2508                                         $view_query_part
2509                                         $since_id_part
2510                                         $query_strategy_part ORDER BY $order_by
2511                                         $limit_query_part $offset_query_part";
2512
2513                                 if ($_REQUEST["debug"]) print $query;
2514
2515                                 $result = db_query($link, $query);
2516
2517                         } else {
2518                                 // browsing by tag
2519
2520                                 $select_qpart = "SELECT DISTINCT " .
2521                                                                 "date_entered," .
2522                                                                 "guid," .
2523                                                                 "note," .
2524                                                                 "ttrss_entries.id as id," .
2525                                                                 "title," .
2526                                                                 "updated," .
2527                                                                 "unread," .
2528                                                                 "feed_id," .
2529                                                                 "orig_feed_id," .
2530                                                                 "marked," .
2531                                                                 "num_comments, " .
2532                                                                 "comments, " .
2533                                                                 "tag_cache," .
2534                                                                 "label_cache," .
2535                                                                 "link," .
2536                                                                 "last_read," .
2537                                                                 SUBSTRING_FOR_DATE . "(last_read,1,19) as last_read_noms," .
2538                                                                 $since_id_part .
2539                                                                 $vfeed_query_part .
2540                                                                 $content_query_part .
2541                                                                 SUBSTRING_FOR_DATE . "(updated,1,19) as updated_noms," .
2542                                                                 "score ";
2543
2544                                 $feed_kind = "Tags";
2545                                 $all_tags = explode(",", $feed);
2546                                 if ($search_mode == 'any') {
2547                                         $tag_sql = "tag_name in (" . implode(", ", array_map("db_quote", $all_tags)) . ")";
2548                                         $from_qpart = " FROM ttrss_entries,ttrss_user_entries,ttrss_tags ";
2549                                         $where_qpart = " WHERE " .
2550                                                                    "ref_id = ttrss_entries.id AND " .
2551                                                                    "ttrss_user_entries.owner_uid = $owner_uid AND " .
2552                                                                    "post_int_id = int_id AND $tag_sql AND " .
2553                                                                    $view_query_part .
2554                                                                    $search_query_part .
2555                                                                    $query_strategy_part . " ORDER BY $order_by " .
2556                                                                    $limit_query_part;
2557
2558                                 } else {
2559                                         $i = 1;
2560                                         $sub_selects = array();
2561                                         $sub_ands = array();
2562                                         foreach ($all_tags as $term) {
2563                                                 array_push($sub_selects, "(SELECT post_int_id from ttrss_tags WHERE tag_name = " . db_quote($term) . " AND owner_uid = $owner_uid) as A$i");
2564                                                 $i++;
2565                                         }
2566                                         if ($i > 2) {
2567                                                 $x = 1;
2568                                                 $y = 2;
2569                                                 do {
2570                                                         array_push($sub_ands, "A$x.post_int_id = A$y.post_int_id");
2571                                                         $x++;
2572                                                         $y++;
2573                                                 } while ($y < $i);
2574                                         }
2575                                         array_push($sub_ands, "A1.post_int_id = ttrss_user_entries.int_id and ttrss_user_entries.owner_uid = $owner_uid");
2576                                         array_push($sub_ands, "ttrss_user_entries.ref_id = ttrss_entries.id");
2577                                         $from_qpart = " FROM " . implode(", ", $sub_selects) . ", ttrss_user_entries, ttrss_entries";
2578                                         $where_qpart = " WHERE " . implode(" AND ", $sub_ands);
2579                                 }
2580                                 //                              error_log("TAG SQL: " . $tag_sql);
2581                                 // $tag_sql = "tag_name = '$feed'";   DEFAULT way
2582
2583                                 //                              error_log("[". $select_qpart . "][" . $from_qpart . "][" .$where_qpart . "]");
2584                                 $result = db_query($link, $select_qpart . $from_qpart . $where_qpart);
2585                         }
2586
2587                         return array($result, $feed_title, $feed_site_url, $last_error);
2588
2589         }
2590
2591         function sanitize($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
2592                 if (!$owner) $owner = $_SESSION["uid"];
2593
2594                 $res = trim($str); if (!$res) return '';
2595
2596                 $config = array('safe' => 1, 'deny_attribute' => 'style', 'comment' => 1, 'cdata' => 1);
2597                 $res = htmLawed($res, $config);
2598
2599                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
2600                         $res = preg_replace('/<img[^>]+>/is', '', $res);
2601                 }
2602
2603                 if (strpos($res, "href=") === false)
2604                         $res = rewrite_urls($res);
2605
2606                 $charset_hack = '<head>
2607                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
2608                 </head>';
2609
2610                 $res = trim($res); if (!$res) return '';
2611
2612                 libxml_use_internal_errors(true);
2613
2614                 $doc = new DOMDocument();
2615                 $doc->loadHTML($charset_hack . $res);
2616                 $xpath = new DOMXPath($doc);
2617
2618                 $entries = $xpath->query('(//a[@href]|//img[@src])');
2619                 $br_inserted = 0;
2620
2621                 foreach ($entries as $entry) {
2622
2623                         if ($site_url) {
2624
2625                                 if ($entry->hasAttribute('href'))
2626                                         $entry->setAttribute('href',
2627                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
2628
2629                                 if ($entry->hasAttribute('src'))
2630                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
2631                                                 $entry->setAttribute('src',
2632                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
2633                         }
2634
2635                         if (strtolower($entry->nodeName) == "a") {
2636                                 $entry->setAttribute("target", "_blank");
2637                         }
2638
2639                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
2640                                 $br = $doc->createElement("br");
2641
2642                                 if ($entry->parentNode->nextSibling) {
2643                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
2644                                         $br_inserted = 1;
2645                                 }
2646
2647                         }
2648                 }
2649
2650                 $node = $doc->getElementsByTagName('body')->item(0);
2651
2652                 return $doc->saveXML($node, LIBXML_NOEMPTYTAG);
2653         }
2654
2655         /**
2656          * Send by mail a digest of last articles.
2657          *
2658          * @param mixed $link The database connection.
2659          * @param integer $limit The maximum number of articles by digest.
2660          * @return boolean Return false if digests are not enabled.
2661          */
2662         function send_headlines_digests($link, $debug = false) {
2663
2664                 require_once 'lib/phpmailer/class.phpmailer.php';
2665
2666                 $user_limit = 15; // amount of users to process (e.g. emails to send out)
2667                 $limit = 1000; // maximum amount of headlines to include
2668
2669                 if ($debug) _debug("Sending digests, batch of max $user_limit users, headline limit = $limit");
2670
2671                 if (DB_TYPE == "pgsql") {
2672                         $interval_query = "last_digest_sent < NOW() - INTERVAL '1 days'";
2673                 } else if (DB_TYPE == "mysql") {
2674                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL 1 DAY)";
2675                 }
2676
2677                 $result = db_query($link, "SELECT id,email FROM ttrss_users
2678                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
2679
2680                 while ($line = db_fetch_assoc($result)) {
2681
2682                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
2683                                 $preferred_ts = strtotime(get_pref($link, 'DIGEST_PREFERRED_TIME', $line['id'], '00:00'));
2684
2685                                 // try to send digests within 2 hours of preferred time
2686                                 if ($preferred_ts && time() >= $preferred_ts &&
2687                                                 time() - $preferred_ts <= 7200) {
2688
2689                                         if ($debug) print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
2690
2691                                         $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
2692
2693                                         global $tz_offset;
2694
2695                                         // reset tz_offset global to prevent tz cache clash between users
2696                                         $tz_offset = -1;
2697
2698                                         $tuple = prepare_headlines_digest($link, $line["id"], 1, $limit);
2699                                         $digest = $tuple[0];
2700                                         $headlines_count = $tuple[1];
2701                                         $affected_ids = $tuple[2];
2702                                         $digest_text = $tuple[3];
2703
2704                                         if ($headlines_count > 0) {
2705
2706                                                 $mail = new PHPMailer();
2707
2708                                                 $mail->PluginDir = "lib/phpmailer/";
2709                                                 $mail->SetLanguage("en", "lib/phpmailer/language/");
2710
2711                                                 $mail->CharSet = "UTF-8";
2712
2713                                                 $mail->From = SMTP_FROM_ADDRESS;
2714                                                 $mail->FromName = SMTP_FROM_NAME;
2715                                                 $mail->AddAddress($line["email"], $line["login"]);
2716
2717                                                 if (SMTP_HOST) {
2718                                                         $mail->Host = SMTP_HOST;
2719                                                         $mail->Mailer = "smtp";
2720                                                         $mail->SMTPAuth = SMTP_LOGIN != '';
2721                                                         $mail->Username = SMTP_LOGIN;
2722                                                         $mail->Password = SMTP_PASSWORD;
2723                                                 }
2724
2725                                                 $mail->IsHTML(true);
2726                                                 $mail->Subject = DIGEST_SUBJECT;
2727                                                 $mail->Body = $digest;
2728                                                 $mail->AltBody = $digest_text;
2729
2730                                                 $rc = $mail->Send();
2731
2732                                                 if (!$rc && $debug) print "ERROR: " . $mail->ErrorInfo;
2733
2734                                                 if ($debug) print "RC=$rc\n";
2735
2736                                                 if ($rc && $do_catchup) {
2737                                                         if ($debug) print "Marking affected articles as read...\n";
2738                                                         catchupArticlesById($link, $affected_ids, 0, $line["id"]);
2739                                                 }
2740                                         } else {
2741                                                 if ($debug) print "No headlines\n";
2742                                         }
2743
2744                                         db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
2745                                                 WHERE id = " . $line["id"]);
2746
2747                                 }
2748                         }
2749                 }
2750
2751                 if ($debug) _debug("All done.");
2752
2753         }
2754
2755         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 1000) {
2756
2757                 require_once "lib/MiniTemplator.class.php";
2758
2759                 $tpl = new MiniTemplator;
2760                 $tpl_t = new MiniTemplator;
2761
2762                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
2763                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
2764
2765                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $user_id);
2766                 $local_ts = convert_timestamp(time(), 'UTC', $user_tz_string);
2767
2768                 $tpl->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
2769                 $tpl->setVariable('CUR_TIME', date('G:i', $local_ts));
2770
2771                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
2772                 $tpl_t->setVariable('CUR_TIME', date('G:i', $local_ts));
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                                 COALESCE(ttrss_feed_categories.title, '".__('Uncategorized')."') AS cat_title,
2785                                 date_updated,
2786                                 ttrss_user_entries.ref_id,
2787                                 link,
2788                                 score,
2789                                 content,
2790                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
2791                         FROM
2792                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
2793                         LEFT JOIN
2794                                 ttrss_feed_categories ON (cat_id = ttrss_feed_categories.id)
2795                         WHERE
2796                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
2797                                 AND include_in_digest = true
2798                                 AND $interval_query
2799                                 AND ttrss_user_entries.owner_uid = $user_id
2800                                 AND unread = true
2801                                 AND score >= 0
2802                         ORDER BY ttrss_feed_categories.title, ttrss_feeds.title, score DESC, date_updated DESC
2803                         LIMIT $limit");
2804
2805                 $cur_feed_title = "";
2806
2807                 $headlines_count = db_num_rows($result);
2808
2809                 $headlines = array();
2810
2811                 while ($line = db_fetch_assoc($result)) {
2812                         array_push($headlines, $line);
2813                 }
2814
2815                 for ($i = 0; $i < sizeof($headlines); $i++) {
2816
2817                         $line = $headlines[$i];
2818
2819                         array_push($affected_ids, $line["ref_id"]);
2820
2821                         $updated = make_local_datetime($link, $line['last_updated'], false,
2822                                 $user_id);
2823
2824 /*                      if ($line["score"] != 0) {
2825                                 if ($line["score"] > 0) $line["score"] = '+' . $line["score"];
2826
2827                                 $line["title"] .= " (".$line['score'].")";
2828                         } */
2829
2830                         if (get_pref($link, 'ENABLE_FEED_CATS', $user_id)) {
2831                                 $line['feed_title'] = $line['cat_title'] . " / " . $line['feed_title'];
2832                         }
2833
2834                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
2835                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
2836                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
2837                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
2838                         $tpl->setVariable('ARTICLE_EXCERPT',
2839                                 truncate_string(strip_tags($line["content"]), 300));
2840 //                      $tpl->setVariable('ARTICLE_CONTENT',
2841 //                              strip_tags($article_content));
2842
2843                         $tpl->addBlock('article');
2844
2845                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
2846                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
2847                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
2848                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
2849 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
2850 //                              truncate_string(strip_tags($line["excerpt"]), 100));
2851
2852                         $tpl_t->addBlock('article');
2853
2854                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
2855                                 $tpl->addBlock('feed');
2856                                 $tpl_t->addBlock('feed');
2857                         }
2858
2859                 }
2860
2861                 $tpl->addBlock('digest');
2862                 $tpl->generateOutputToString($tmp);
2863
2864                 $tpl_t->addBlock('digest');
2865                 $tpl_t->generateOutputToString($tmp_t);
2866
2867                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
2868         }
2869
2870         function check_for_update($link) {
2871                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
2872                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
2873
2874                         $version_data = @fetch_file_contents($version_url);
2875
2876                         if ($version_data) {
2877                                 $version_data = json_decode($version_data, true);
2878                                 if ($version_data && $version_data['version']) {
2879
2880                                         if (version_compare(VERSION, $version_data['version']) == -1) {
2881                                                 return $version_data;
2882                                         }
2883                                 }
2884                         }
2885                 }
2886                 return false;
2887         }
2888
2889         function markArticlesById($link, $ids, $cmode) {
2890
2891                 $tmp_ids = array();
2892
2893                 foreach ($ids as $id) {
2894                         array_push($tmp_ids, "ref_id = '$id'");
2895                 }
2896
2897                 $ids_qpart = join(" OR ", $tmp_ids);
2898
2899                 if ($cmode == 0) {
2900                         db_query($link, "UPDATE ttrss_user_entries SET
2901                         marked = false,last_read = NOW()
2902                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2903                 } else if ($cmode == 1) {
2904                         db_query($link, "UPDATE ttrss_user_entries SET
2905                         marked = true
2906                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2907                 } else {
2908                         db_query($link, "UPDATE ttrss_user_entries SET
2909                         marked = NOT marked,last_read = NOW()
2910                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2911                 }
2912         }
2913
2914         function publishArticlesById($link, $ids, $cmode) {
2915
2916                 $tmp_ids = array();
2917
2918                 foreach ($ids as $id) {
2919                         array_push($tmp_ids, "ref_id = '$id'");
2920                 }
2921
2922                 $ids_qpart = join(" OR ", $tmp_ids);
2923
2924                 if ($cmode == 0) {
2925                         db_query($link, "UPDATE ttrss_user_entries SET
2926                         published = false,last_read = NOW()
2927                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2928                 } else if ($cmode == 1) {
2929                         db_query($link, "UPDATE ttrss_user_entries SET
2930                         published = true,last_read = NOW()
2931                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2932                 } else {
2933                         db_query($link, "UPDATE ttrss_user_entries SET
2934                         published = NOT published,last_read = NOW()
2935                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2936                 }
2937
2938                 if (PUBSUBHUBBUB_HUB) {
2939                         $rss_link = get_self_url_prefix() .
2940                                 "/public.php?op=rss&id=-2&key=" .
2941                                 get_feed_access_key($link, -2, false);
2942
2943                         $p = new Publisher(PUBSUBHUBBUB_HUB);
2944
2945                         $pubsub_result = $p->publish_update($rss_link);
2946                 }
2947         }
2948
2949         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
2950
2951                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2952                 if (count($ids) == 0) return;
2953
2954                 $tmp_ids = array();
2955
2956                 foreach ($ids as $id) {
2957                         array_push($tmp_ids, "ref_id = '$id'");
2958                 }
2959
2960                 $ids_qpart = join(" OR ", $tmp_ids);
2961
2962                 if ($cmode == 0) {
2963                         db_query($link, "UPDATE ttrss_user_entries SET
2964                         unread = false,last_read = NOW()
2965                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2966                 } else if ($cmode == 1) {
2967                         db_query($link, "UPDATE ttrss_user_entries SET
2968                         unread = true
2969                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2970                 } else {
2971                         db_query($link, "UPDATE ttrss_user_entries SET
2972                         unread = NOT unread,last_read = NOW()
2973                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2974                 }
2975
2976                 /* update ccache */
2977
2978                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
2979                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
2980
2981                 while ($line = db_fetch_assoc($result)) {
2982                         ccache_update($link, $line["feed_id"], $owner_uid);
2983                 }
2984         }
2985
2986         function catchupArticleById($link, $id, $cmode) {
2987
2988                 if ($cmode == 0) {
2989                         db_query($link, "UPDATE ttrss_user_entries SET
2990                         unread = false,last_read = NOW()
2991                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
2992                 } else if ($cmode == 1) {
2993                         db_query($link, "UPDATE ttrss_user_entries SET
2994                         unread = true
2995                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
2996                 } else {
2997                         db_query($link, "UPDATE ttrss_user_entries SET
2998                         unread = NOT unread,last_read = NOW()
2999                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
3000                 }
3001
3002                 $feed_id = getArticleFeed($link, $id);
3003                 ccache_update($link, $feed_id, $_SESSION["uid"]);
3004         }
3005
3006         function make_guid_from_title($title) {
3007                 return preg_replace("/[ \"\',.:;]/", "-",
3008                         mb_strtolower(strip_tags($title), 'utf-8'));
3009         }
3010
3011         function get_article_tags($link, $id, $owner_uid = 0, $tag_cache = false) {
3012
3013                 $a_id = db_escape_string($id);
3014
3015                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3016
3017                 $query = "SELECT DISTINCT tag_name,
3018                         owner_uid as owner FROM
3019                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
3020                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
3021
3022                 $obj_id = md5("TAGS:$owner_uid:$id");
3023                 $tags = array();
3024
3025                 /* check cache first */
3026
3027                 if ($tag_cache === false) {
3028                         $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
3029                                 WHERE ref_id = '$id' AND owner_uid = $owner_uid");
3030
3031                         $tag_cache = db_fetch_result($result, 0, "tag_cache");
3032                 }
3033
3034                 if ($tag_cache) {
3035                         $tags = explode(",", $tag_cache);
3036                 } else {
3037
3038                         /* do it the hard way */
3039
3040                         $tmp_result = db_query($link, $query);
3041
3042                         while ($tmp_line = db_fetch_assoc($tmp_result)) {
3043                                 array_push($tags, $tmp_line["tag_name"]);
3044                         }
3045
3046                         /* update the cache */
3047
3048                         $tags_str = db_escape_string(join(",", $tags));
3049
3050                         db_query($link, "UPDATE ttrss_user_entries
3051                                 SET tag_cache = '$tags_str' WHERE ref_id = '$id'
3052                                 AND owner_uid = $owner_uid");
3053                 }
3054
3055                 return $tags;
3056         }
3057
3058         function trim_array($array) {
3059                 $tmp = $array;
3060                 array_walk($tmp, 'trim');
3061                 return $tmp;
3062         }
3063
3064         function tag_is_valid($tag) {
3065                 if ($tag == '') return false;
3066                 if (preg_match("/^[0-9]*$/", $tag)) return false;
3067                 if (mb_strlen($tag) > 250) return false;
3068
3069                 if (function_exists('iconv')) {
3070                         $tag = iconv("utf-8", "utf-8", $tag);
3071                 }
3072
3073                 if (!$tag) return false;
3074
3075                 return true;
3076         }
3077
3078         function render_login_form($link, $form_id = 0) {
3079                 switch ($form_id) {
3080                 case 0:
3081                         require_once "login_form.php";
3082                         break;
3083                 case 1:
3084                         require_once "mobile/login_form.php";
3085                         break;
3086                 }
3087                 exit;
3088         }
3089
3090         // from http://developer.apple.com/internet/safari/faq.html
3091         function no_cache_incantation() {
3092                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
3093                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
3094                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
3095                 header("Cache-Control: post-check=0, pre-check=0", false);
3096                 header("Pragma: no-cache"); // HTTP/1.0
3097         }
3098
3099         function format_warning($msg, $id = "") {
3100                 global $link;
3101                 return "<div class=\"warning\" id=\"$id\">
3102                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3103         }
3104
3105         function format_notice($msg, $id = "") {
3106                 global $link;
3107                 return "<div class=\"notice\" id=\"$id\">
3108                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
3109         }
3110
3111         function format_error($msg, $id = "") {
3112                 global $link;
3113                 return "<div class=\"error\" id=\"$id\">
3114                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
3115         }
3116
3117         function print_notice($msg) {
3118                 return print format_notice($msg);
3119         }
3120
3121         function print_warning($msg) {
3122                 return print format_warning($msg);
3123         }
3124
3125         function print_error($msg) {
3126                 return print format_error($msg);
3127         }
3128
3129
3130         function T_sprintf() {
3131                 $args = func_get_args();
3132                 return vsprintf(__(array_shift($args)), $args);
3133         }
3134
3135         function format_inline_player($link, $url, $ctype) {
3136
3137                 $entry = "";
3138
3139                 if (strpos($ctype, "audio/") === 0) {
3140
3141                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
3142                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
3143                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
3144
3145                                 $id = 'AUDIO-' . uniqid();
3146
3147                                 $entry .= "<audio id=\"$id\"\">
3148                                         <source src=\"$url\"></source>
3149                                         </audio>";
3150
3151                                 $entry .= "<span onclick=\"player(this)\"
3152                                         title=\"".__("Click to play")."\" status=\"0\"
3153                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
3154
3155                         } else {
3156
3157                                 $entry .= "<object type=\"application/x-shockwave-flash\"
3158                                         data=\"lib/button/musicplayer.swf?song_url=$url\"
3159                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
3160                                         <param name=\"movie\"
3161                                                 value=\"lib/button/musicplayer.swf?song_url=$url\" />
3162                                         </object>";
3163                         }
3164                 }
3165
3166                 $filename = substr($url, strrpos($url, "/")+1);
3167
3168                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
3169                         $filename . " (" . $ctype . ")" . "</a>";
3170
3171                 return $entry;
3172         }
3173
3174         function format_article($link, $id, $mark_as_read = true, $zoom_mode = false, $owner_uid = false) {
3175                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3176
3177                 $rv = array();
3178
3179                 $rv['id'] = $id;
3180
3181                 /* we can figure out feed_id from article id anyway, why do we
3182                  * pass feed_id here? let's ignore the argument :( */
3183
3184                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
3185                         WHERE ref_id = '$id'");
3186
3187                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
3188
3189                 $rv['feed_id'] = $feed_id;
3190
3191                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
3192
3193                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
3194                         WHERE id = '$feed_id' AND owner_uid = $owner_uid");
3195
3196                 if (db_num_rows($result) == 1) {
3197                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
3198                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
3199                 } else {
3200                         $rtl_content = false;
3201                         $always_display_enclosures = false;
3202                 }
3203
3204                 if ($rtl_content) {
3205                         $rtl_tag = "dir=\"RTL\"";
3206                         $rtl_class = "RTL";
3207                 } else {
3208                         $rtl_tag = "";
3209                         $rtl_class = "";
3210                 }
3211
3212                 if ($mark_as_read) {
3213                         $result = db_query($link, "UPDATE ttrss_user_entries
3214                                 SET unread = false,last_read = NOW()
3215                                 WHERE ref_id = '$id' AND owner_uid = $owner_uid");
3216
3217                         ccache_update($link, $feed_id, $owner_uid);
3218                 }
3219
3220                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
3221                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
3222                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
3223                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
3224                         num_comments,
3225                         tag_cache,
3226                         author,
3227                         orig_feed_id,
3228                         note
3229                         FROM ttrss_entries,ttrss_user_entries
3230                         WHERE   id = '$id' AND ref_id = id AND owner_uid = $owner_uid");
3231
3232                 if ($result) {
3233
3234                         $line = db_fetch_assoc($result);
3235
3236                         if ($line["icon_url"]) {
3237                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
3238                         } else {
3239                                 $feed_icon = "&nbsp;";
3240                         }
3241
3242                         $feed_site_url = $line['site_url'];
3243
3244                         $num_comments = $line["num_comments"];
3245                         $entry_comments = "";
3246
3247                         if ($num_comments > 0) {
3248                                 if ($line["comments"]) {
3249                                         $comments_url = htmlspecialchars($line["comments"]);
3250                                 } else {
3251                                         $comments_url = htmlspecialchars($line["link"]);
3252                                 }
3253                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
3254                         } else {
3255                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
3256                                         $entry_comments = "<a target='_blank' href=\"".htmlspecialchars($line["comments"])."\">comments</a>";
3257                                 }
3258                         }
3259
3260                         if ($zoom_mode) {
3261                                 header("Content-Type: text/html");
3262                                 $rv['content'] .= "<html><head>
3263                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
3264                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
3265                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
3266                                         </head><body>";
3267                         }
3268
3269                         $title_escaped = htmlspecialchars($line['title']);
3270
3271                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
3272                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
3273
3274                         $rv['content'] .= "<div id=\"PTITLE-FULL-$id\" style=\"display : none\">" .
3275                                 strip_tags($line['title']) . "</div>";
3276
3277                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
3278
3279                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
3280                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
3281
3282                         $entry_author = $line["author"];
3283
3284                         if ($entry_author) {
3285                                 $entry_author = __(" - ") . $entry_author;
3286                         }
3287
3288                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
3289                                 $owner_uid, true);
3290
3291                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
3292
3293                         if ($line["link"]) {
3294                                 $rv['content'] .= "<div class='postTitle'><a target='_blank'
3295                                         title=\"".htmlspecialchars($line['title'])."\"
3296                                         href=\"" .
3297                                         htmlspecialchars($line["link"]) . "\">" .
3298                                         $line["title"] .
3299                                         "<span class='author'>$entry_author</span></a></div>";
3300                         } else {
3301                                 $rv['content'] .= "<div class='postTitle'>" . $line["title"] . "$entry_author</div>";
3302                         }
3303
3304                         $tag_cache = $line["tag_cache"];
3305
3306                         if (!$tag_cache)
3307                                 $tags = get_article_tags($link, $id, $owner_uid);
3308                         else
3309                                 $tags = explode(",", $tag_cache);
3310
3311                         $tags_str = format_tags_string($tags, $id);
3312                         $tags_str_full = join(", ", $tags);
3313
3314                         if (!$tags_str_full) $tags_str_full = __("no tags");
3315
3316                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
3317
3318                         $rv['content'] .= "<div class='postTags' style='float : right'>
3319                                 <img src='".theme_image($link, 'images/tag.png')."'
3320                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
3321
3322                         if (!$zoom_mode) {
3323                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
3324                                         <a title=\"".__('Edit tags for this article')."\"
3325                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
3326
3327                                 $rv['content'] .= "<div dojoType=\"dijit.Tooltip\"
3328                                         id=\"ATSTRTIP-$id\" connectId=\"ATSTR-$id\"
3329                                         position=\"below\">$tags_str_full</div>";
3330
3331                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
3332                                                 class='tagsPic' style=\"cursor : pointer\"
3333                                                 onclick=\"postOpenInNewTab(event, $id)\"
3334                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
3335
3336                                 $button_plugins = explode(",", ARTICLE_BUTTON_PLUGINS);
3337
3338                                 foreach ($button_plugins as $p) {
3339                                         $pclass = "button_" . trim($p);
3340
3341                                         if (class_exists($pclass)) {
3342                                                 $plugin = new $pclass($link);
3343                                                 $rv['content'] .= $plugin->render($id, $line);
3344                                         }
3345                                 }
3346
3347                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
3348                                                 class='tagsPic' style=\"cursor : pointer\"
3349                                                 onclick=\"closeArticlePanel($id)\"
3350                                                 title='".__('Close article')."'>";
3351
3352                         } else {
3353                                 $tags_str = strip_tags($tags_str);
3354                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
3355                         }
3356                         $rv['content'] .= "</div>";
3357                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
3358
3359                         if ($line["orig_feed_id"]) {
3360
3361                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
3362                                         WHERE id = ".$line["orig_feed_id"]);
3363
3364                                 if (db_num_rows($tmp_result) != 0) {
3365
3366                                         $rv['content'] .= "<div clear='both'>";
3367                                         $rv['content'] .= __("Originally from:");
3368
3369                                         $rv['content'] .= "&nbsp;";
3370
3371                                         $tmp_line = db_fetch_assoc($tmp_result);
3372
3373                                         $rv['content'] .= "<a target='_blank'
3374                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
3375                                                 $tmp_line['title'] . "</a>";
3376
3377                                         $rv['content'] .= "&nbsp;";
3378
3379                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
3380                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.png'></a>";
3381
3382                                         $rv['content'] .= "</div>";
3383                                 }
3384                         }
3385
3386                         $rv['content'] .= "</div>";
3387
3388                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
3389                                 if ($line['note']) {
3390                                         $rv['content'] .= format_article_note($id, $line['note']);
3391                                 }
3392                         $rv['content'] .= "</div>";
3393
3394                         $rv['content'] .= "<div class=\"postIcon\">" .
3395                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
3396                                 href=\"".htmlspecialchars($feed_site_url)."\">".
3397                                 $feed_icon . "</a></div>";
3398
3399                         $rv['content'] .= "<div class=\"postContent\">";
3400
3401                         // N-grams
3402
3403                         if (DB_TYPE == "pgsql" and defined('_NGRAM_TITLE_RELATED_THRESHOLD')) {
3404
3405                                 $ngram_result = db_query($link, "SELECT id,title FROM
3406                                                 ttrss_entries,ttrss_user_entries
3407                                         WHERE ref_id = id AND updated >= NOW() - INTERVAL '7 day'
3408                                                 AND similarity(title, '$title_escaped') >= "._NGRAM_TITLE_RELATED_THRESHOLD."
3409                                                 AND title != '$title_escaped'
3410                                                 AND owner_uid = $owner_uid");
3411
3412                                 if (db_num_rows($ngram_result) > 0) {
3413                                         $rv['content'] .= "<div dojoType=\"dijit.form.DropDownButton\">".
3414                                                 "<span>" . __('Related')."</span>";
3415                                         $rv['content'] .= "<div dojoType=\"dijit.Menu\" style=\"display: none;\">";
3416
3417                                         while ($nline = db_fetch_assoc($ngram_result)) {
3418                                                 $rv['content'] .= "<div onclick=\"hlOpenInNewTab(null,".$nline['id'].")\"
3419                                                         dojoType=\"dijit.MenuItem\">".$nline['title']."</div>";
3420
3421                                         }
3422                                         $rv['content'] .= "</div></div><br/";
3423                                 }
3424                         }
3425
3426                         $article_content = sanitize($link, $line["content"], false, $owner_uid,
3427                                 $feed_site_url);
3428
3429                         $rv['content'] .= $article_content;
3430
3431                         $rv['content'] .= format_article_enclosures($link, $id,
3432                                 $always_display_enclosures, $article_content);
3433
3434                         $rv['content'] .= "</div>";
3435
3436                         $rv['content'] .= "</div>";
3437
3438                 }
3439
3440                 if ($zoom_mode) {
3441                         $rv['content'] .= "
3442                                 <div style=\"text-align : center\">
3443                                 <button onclick=\"return window.close()\">".
3444                                         __("Close this window")."</button></div>";
3445                         $rv['content'] .= "</body></html>";
3446                 }
3447
3448                 return $rv;
3449
3450         }
3451
3452         function print_checkpoint($n, $s) {
3453                 $ts = getmicrotime();
3454                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
3455                 return $ts;
3456         }
3457
3458         function sanitize_tag($tag) {
3459                 $tag = trim($tag);
3460
3461                 $tag = mb_strtolower($tag, 'utf-8');
3462
3463                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
3464
3465 //              $tag = str_replace('"', "", $tag);
3466 //              $tag = str_replace("+", " ", $tag);
3467                 $tag = str_replace("technorati tag: ", "", $tag);
3468
3469                 return $tag;
3470         }
3471
3472         function get_self_url_prefix() {
3473                 return SELF_URL_PATH;
3474         }
3475
3476         function opml_publish_url($link){
3477
3478                 $url_path = get_self_url_prefix();
3479                 $url_path .= "/opml.php?op=publish&key=" .
3480                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
3481
3482                 return $url_path;
3483         }
3484
3485         /**
3486          * Purge a feed contents, marked articles excepted.
3487          *
3488          * @param mixed $link The database connection.
3489          * @param integer $id The id of the feed to purge.
3490          * @return void
3491          */
3492         function clear_feed_articles($link, $id) {
3493
3494                 if ($id != 0) {
3495                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3496                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3497                 } else {
3498                         $result = db_query($link, "DELETE FROM ttrss_user_entries
3499                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
3500                 }
3501
3502                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
3503                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
3504
3505                 ccache_update($link, $id, $_SESSION['uid']);
3506         } // function clear_feed_articles
3507
3508         /**
3509          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
3510          *
3511          * @return string The Mozilla Firefox feed adding URL.
3512          */
3513         function add_feed_url() {
3514                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
3515
3516                 $url_path = get_self_url_prefix() .
3517                         "/public.php?op=subscribe&feed_url=%s";
3518                 return $url_path;
3519         } // function add_feed_url
3520
3521         function encrypt_password($pass, $salt = '', $mode2 = false) {
3522                 if ($salt && $mode2) {
3523                         return "MODE2:" . hash('sha256', $salt . $pass);
3524                 } else if ($salt) {
3525                         return "SHA1X:" . sha1("$salt:$pass");
3526                 } else {
3527                         return "SHA1:" . sha1($pass);
3528                 }
3529         } // function encrypt_password
3530
3531         function load_filters($link, $feed_id, $owner_uid, $action_id = false) {
3532                 $filters = array();
3533
3534                 $cat_id = (int)getFeedCategory($link, $feed_id);
3535
3536                 $result = db_query($link, "SELECT * FROM ttrss_filters2 WHERE
3537                         owner_uid = $owner_uid AND enabled = true");
3538
3539                 $check_cats = join(",", array_merge(
3540                         getParentCategories($link, $cat_id, $owner_uid),
3541                         array($cat_id)));
3542
3543                 while ($line = db_fetch_assoc($result)) {
3544                         $filter_id = $line["id"];
3545
3546                         $result2 = db_query($link, "SELECT
3547                                 r.reg_exp, r.feed_id, r.cat_id, r.cat_filter, t.name AS type_name
3548                                 FROM ttrss_filters2_rules AS r,
3549                                 ttrss_filter_types AS t
3550                                 WHERE
3551                                         (cat_id IS NULL OR cat_id IN ($check_cats)) AND
3552                                         (feed_id IS NULL OR feed_id = '$feed_id') AND
3553                                         filter_type = t.id AND filter_id = '$filter_id'");
3554
3555                         $rules = array();
3556                         $actions = array();
3557
3558                         while ($rule_line = db_fetch_assoc($result2)) {
3559 #                               print_r($rule_line);
3560
3561                                 $rule = array();
3562                                 $rule["reg_exp"] = $rule_line["reg_exp"];
3563                                 $rule["type"] = $rule_line["type_name"];
3564
3565                                 array_push($rules, $rule);
3566                         }
3567
3568                         $result2 = db_query($link, "SELECT a.action_param,t.name AS type_name
3569                                 FROM ttrss_filters2_actions AS a,
3570                                 ttrss_filter_actions AS t
3571                                 WHERE
3572                                         action_id = t.id AND filter_id = '$filter_id'");
3573
3574                         while ($action_line = db_fetch_assoc($result2)) {
3575 #                               print_r($action_line);
3576
3577                                 $action = array();
3578                                 $action["type"] = $action_line["type_name"];
3579                                 $action["param"] = $action_line["action_param"];
3580
3581                                 array_push($actions, $action);
3582                         }
3583
3584
3585                         $filter = array();
3586                         $filter["match_any_rule"] = sql_bool_to_bool($line["match_any_rule"]);
3587                         $filter["rules"] = $rules;
3588                         $filter["actions"] = $actions;
3589
3590                         if (count($rules) > 0 && count($actions) > 0) {
3591                                 array_push($filters, $filter);
3592                         }
3593                 }
3594
3595                 return $filters;
3596         }
3597
3598         function get_score_pic($score) {
3599                 if ($score > 100) {
3600                         return "score_high.png";
3601                 } else if ($score > 0) {
3602                         return "score_half_high.png";
3603                 } else if ($score < -100) {
3604                         return "score_low.png";
3605                 } else if ($score < 0) {
3606                         return "score_half_low.png";
3607                 } else {
3608                         return "score_neutral.png";
3609                 }
3610         }
3611
3612         function feed_has_icon($id) {
3613                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
3614         }
3615
3616         function init_connection($link) {
3617                 if ($link) {
3618
3619                         if (DB_TYPE == "pgsql") {
3620                                 pg_query($link, "set client_encoding = 'UTF-8'");
3621                                 pg_set_client_encoding("UNICODE");
3622                                 pg_query($link, "set datestyle = 'ISO, european'");
3623                                 pg_query($link, "set TIME ZONE 0");
3624                         } else {
3625                                 db_query($link, "SET time_zone = '+0:0'");
3626
3627                                 if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
3628                                         db_query($link, "SET NAMES " . MYSQL_CHARSET);
3629                                 }
3630                         }
3631                         return true;
3632                 } else {
3633                         print "Unable to connect to database:" . db_last_error();
3634                         return false;
3635                 }
3636         }
3637
3638         /* function ccache_zero($link, $feed_id, $owner_uid) {
3639                 db_query($link, "UPDATE ttrss_counters_cache SET
3640                         value = 0, updated = NOW() WHERE
3641                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3642         } */
3643
3644         function ccache_zero_all($link, $owner_uid) {
3645                 db_query($link, "UPDATE ttrss_counters_cache SET
3646                         value = 0 WHERE owner_uid = '$owner_uid'");
3647
3648                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
3649                         value = 0 WHERE owner_uid = '$owner_uid'");
3650         }
3651
3652         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
3653
3654                 if (!$is_cat) {
3655                         $table = "ttrss_counters_cache";
3656                 } else {
3657                         $table = "ttrss_cat_counters_cache";
3658                 }
3659
3660                 db_query($link, "DELETE FROM $table WHERE
3661                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3662
3663         }
3664
3665         function ccache_update_all($link, $owner_uid) {
3666
3667                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
3668
3669                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
3670                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3671
3672                         while ($line = db_fetch_assoc($result)) {
3673                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
3674                         }
3675
3676                         /* We have to manually include category 0 */
3677
3678                         ccache_update($link, 0, $owner_uid, true);
3679
3680                 } else {
3681                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
3682                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
3683
3684                         while ($line = db_fetch_assoc($result)) {
3685                                 print ccache_update($link, $line["feed_id"], $owner_uid);
3686
3687                         }
3688
3689                 }
3690         }
3691
3692         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
3693                 $no_update = false) {
3694
3695                 if (!is_numeric($feed_id)) return;
3696
3697                 if (!$is_cat) {
3698                         $table = "ttrss_counters_cache";
3699                         if ($feed_id > 0) {
3700                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3701                                         WHERE id = '$feed_id'");
3702                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3703                         }
3704                 } else {
3705                         $table = "ttrss_cat_counters_cache";
3706                 }
3707
3708                 if (DB_TYPE == "pgsql") {
3709                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
3710                 } else if (DB_TYPE == "mysql") {
3711                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
3712                 }
3713
3714                 $result = db_query($link, "SELECT value FROM $table
3715                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
3716                         LIMIT 1");
3717
3718                 if (db_num_rows($result) == 1) {
3719                         return db_fetch_result($result, 0, "value");
3720                 } else {
3721                         if ($no_update) {
3722                                 return -1;
3723                         } else {
3724                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
3725                         }
3726                 }
3727
3728         }
3729
3730         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
3731                 $update_pcat = true) {
3732
3733                 if (!is_numeric($feed_id)) return;
3734
3735                 if (!$is_cat && $feed_id > 0) {
3736                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
3737                                 WHERE id = '$feed_id'");
3738                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
3739                 }
3740
3741                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
3742
3743                 /* When updating a label, all we need to do is recalculate feed counters
3744                  * because labels are not cached */
3745
3746                 if ($feed_id < 0) {
3747                         ccache_update_all($link, $owner_uid);
3748                         return;
3749                 }
3750
3751                 if (!$is_cat) {
3752                         $table = "ttrss_counters_cache";
3753                 } else {
3754                         $table = "ttrss_cat_counters_cache";
3755                 }
3756
3757                 if ($is_cat && $feed_id >= 0) {
3758                         if ($feed_id != 0) {
3759                                 $cat_qpart = "cat_id = '$feed_id'";
3760                         } else {
3761                                 $cat_qpart = "cat_id IS NULL";
3762                         }
3763
3764                         /* Recalculate counters for child feeds */
3765
3766                         $result = db_query($link, "SELECT id FROM ttrss_feeds
3767                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
3768
3769                         while ($line = db_fetch_assoc($result)) {
3770                                 ccache_update($link, $line["id"], $owner_uid, false, false);
3771                         }
3772
3773                         $result = db_query($link, "SELECT SUM(value) AS sv
3774                                 FROM ttrss_counters_cache, ttrss_feeds
3775                                 WHERE id = feed_id AND $cat_qpart AND
3776                                 ttrss_feeds.owner_uid = '$owner_uid'");
3777
3778                         $unread = (int) db_fetch_result($result, 0, "sv");
3779
3780                 } else {
3781                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
3782                 }
3783
3784                 db_query($link, "BEGIN");
3785
3786                 $result = db_query($link, "SELECT feed_id FROM $table
3787                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
3788
3789                 if (db_num_rows($result) == 1) {
3790                         db_query($link, "UPDATE $table SET
3791                                 value = '$unread', updated = NOW() WHERE
3792                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
3793
3794                 } else {
3795                         db_query($link, "INSERT INTO $table
3796                                 (feed_id, value, owner_uid, updated)
3797                                 VALUES
3798                                 ($feed_id, $unread, $owner_uid, NOW())");
3799                 }
3800
3801                 db_query($link, "COMMIT");
3802
3803                 if ($feed_id > 0 && $prev_unread != $unread) {
3804
3805                         if (!$is_cat) {
3806
3807                                 /* Update parent category */
3808
3809                                 if ($update_pcat) {
3810
3811                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
3812                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
3813
3814                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
3815
3816                                         ccache_update($link, $cat_id, $owner_uid, true);
3817
3818                                 }
3819                         }
3820                 } else if ($feed_id < 0) {
3821                         ccache_update_all($link, $owner_uid);
3822                 }
3823
3824                 return $unread;
3825         }
3826
3827         /* function ccache_cleanup($link, $owner_uid) {
3828
3829                 if (DB_TYPE == "pgsql") {
3830                         db_query($link, "DELETE FROM ttrss_counters_cache AS c1 WHERE
3831                                 (SELECT count(*) FROM ttrss_counters_cache AS c2
3832                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3833                                         AND owner_uid = '$owner_uid'");
3834
3835                         db_query($link, "DELETE FROM ttrss_cat_counters_cache AS c1 WHERE
3836                                 (SELECT count(*) FROM ttrss_cat_counters_cache AS c2
3837                                         WHERE c1.feed_id = c2.feed_id AND c2.owner_uid = c1.owner_uid) > 1
3838                                         AND owner_uid = '$owner_uid'");
3839                 } else {
3840                         db_query($link, "DELETE c1 FROM
3841                                         ttrss_counters_cache AS c1,
3842                                         ttrss_counters_cache AS c2
3843                                 WHERE
3844                                         c1.owner_uid = '$owner_uid' AND
3845                                         c1.owner_uid = c2.owner_uid AND
3846                                         c1.feed_id = c2.feed_id");
3847
3848                         db_query($link, "DELETE c1 FROM
3849                                         ttrss_cat_counters_cache AS c1,
3850                                         ttrss_cat_counters_cache AS c2
3851                                 WHERE
3852                                         c1.owner_uid = '$owner_uid' AND
3853                                         c1.owner_uid = c2.owner_uid AND
3854                                         c1.feed_id = c2.feed_id");
3855
3856                 }
3857         } */
3858
3859         function label_find_id($link, $label, $owner_uid) {
3860                 $result = db_query($link,
3861                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
3862                                 AND owner_uid = '$owner_uid' LIMIT 1");
3863
3864                 if (db_num_rows($result) == 1) {
3865                         return db_fetch_result($result, 0, "id");
3866                 } else {
3867                         return 0;
3868                 }
3869         }
3870
3871         function get_article_labels($link, $id) {
3872                 $rv = array();
3873
3874
3875                 $result = db_query($link, "SELECT label_cache FROM
3876                         ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
3877                         $_SESSION["uid"]);
3878
3879                 $label_cache = db_fetch_result($result, 0, "label_cache");
3880
3881                 if ($label_cache) {
3882
3883                         $label_cache = json_decode($label_cache, true);
3884
3885                         if ($label_cache["no-labels"] == 1)
3886                                 return $rv;
3887                         else
3888                                 return $label_cache;
3889                 }
3890
3891                 $result = db_query($link,
3892                         "SELECT DISTINCT label_id,caption,fg_color,bg_color
3893                                 FROM ttrss_labels2, ttrss_user_labels2
3894                         WHERE id = label_id
3895                                 AND article_id = '$id'
3896                                 AND owner_uid = ".$_SESSION["uid"] . "
3897                         ORDER BY caption");
3898
3899                 while ($line = db_fetch_assoc($result)) {
3900                         $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
3901                                 $line["bg_color"]);
3902                         array_push($rv, $rk);
3903                 }
3904
3905                 if (count($rv) > 0)
3906                         label_update_cache($link, $id, $rv);
3907                 else
3908                         label_update_cache($link, $id, array("no-labels" => 1));
3909
3910                 return $rv;
3911         }
3912
3913
3914         function label_find_caption($link, $label, $owner_uid) {
3915                 $result = db_query($link,
3916                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
3917                                 AND owner_uid = '$owner_uid' LIMIT 1");
3918
3919                 if (db_num_rows($result) == 1) {
3920                         return db_fetch_result($result, 0, "caption");
3921                 } else {
3922                         return "";
3923                 }
3924         }
3925
3926         function get_all_labels($link, $owner_uid) {
3927                 $rv = array();
3928
3929                 $result = db_query($link, "SELECT fg_color, bg_color, caption FROM ttrss_labels2 WHERE owner_uid = " . $owner_uid);
3930
3931                 while ($line = db_fetch_assoc($result)) {
3932                         array_push($rv, $line);
3933                 }
3934
3935                 return $rv;
3936         }
3937
3938         function label_update_cache($link, $id, $labels = false, $force = false) {
3939
3940                 if ($force)
3941                         label_clear_cache($link, $id);
3942
3943                 if (!$labels)
3944                         $labels = get_article_labels($link, $id);
3945
3946                 $labels = db_escape_string(json_encode($labels));
3947
3948                 db_query($link, "UPDATE ttrss_user_entries SET
3949                         label_cache = '$labels' WHERE ref_id = '$id'");
3950
3951         }
3952
3953         function label_clear_cache($link, $id) {
3954
3955                 db_query($link, "UPDATE ttrss_user_entries SET
3956                         label_cache = '' WHERE ref_id = '$id'");
3957
3958         }
3959
3960         function label_remove_article($link, $id, $label, $owner_uid) {
3961
3962                 $label_id = label_find_id($link, $label, $owner_uid);
3963
3964                 if (!$label_id) return;
3965
3966                 $result = db_query($link,
3967                         "DELETE FROM ttrss_user_labels2
3968                         WHERE
3969                                 label_id = '$label_id' AND
3970                                 article_id = '$id'");
3971
3972                 label_clear_cache($link, $id);
3973         }
3974
3975         function label_add_article($link, $id, $label, $owner_uid) {
3976
3977                 $label_id = label_find_id($link, $label, $owner_uid);
3978
3979                 if (!$label_id) return;
3980
3981                 $result = db_query($link,
3982                         "SELECT
3983                                 article_id FROM ttrss_labels2, ttrss_user_labels2
3984                         WHERE
3985                                 label_id = id AND
3986                                 label_id = '$label_id' AND
3987                                 article_id = '$id' AND owner_uid = '$owner_uid'
3988                         LIMIT 1");
3989
3990                 if (db_num_rows($result) == 0) {
3991                         db_query($link, "INSERT INTO ttrss_user_labels2
3992                                 (label_id, article_id) VALUES ('$label_id', '$id')");
3993                 }
3994
3995                 label_clear_cache($link, $id);
3996
3997         }
3998
3999         function label_remove($link, $id, $owner_uid) {
4000                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4001
4002                 db_query($link, "BEGIN");
4003
4004                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
4005                         WHERE id = '$id'");
4006
4007                 $caption = db_fetch_result($result, 0, "caption");
4008
4009                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
4010                         AND owner_uid = " . $owner_uid);
4011
4012                 if (db_affected_rows($link, $result) != 0 && $caption) {
4013
4014                         /* Remove access key for the label */
4015
4016                         $ext_id = -11 - $id;
4017
4018                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
4019                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
4020
4021                         /* Disable filters that reference label being removed */
4022
4023                         db_query($link, "UPDATE ttrss_filters SET
4024                                 enabled = false WHERE action_param = '$caption'
4025                                         AND action_id = 7
4026                                         AND owner_uid = " . $owner_uid);
4027
4028                         /* Remove cached data */
4029
4030                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
4031                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
4032
4033                 }
4034
4035                 db_query($link, "COMMIT");
4036         }
4037
4038         function label_create($link, $caption, $fg_color = '', $bg_color = '', $owner_uid) {
4039
4040                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
4041
4042                 db_query($link, "BEGIN");
4043
4044                 $result = false;
4045
4046                 $result = db_query($link, "SELECT id FROM ttrss_labels2
4047                         WHERE caption = '$caption' AND owner_uid = $owner_uid");
4048
4049                 if (db_num_rows($result) == 0) {
4050                         $result = db_query($link,
4051                                 "INSERT INTO ttrss_labels2 (caption,owner_uid,fg_color,bg_color)
4052                                         VALUES ('$caption', '$owner_uid', '$fg_color', '$bg_color')");
4053
4054                         $result = db_affected_rows($link, $result) != 0;
4055                 }
4056
4057                 db_query($link, "COMMIT");
4058
4059                 return $result;
4060         }
4061
4062         function format_tags_string($tags, $id) {
4063
4064                 $tags_str = "";
4065                 $tags_nolinks_str = "";
4066
4067                 $num_tags = 0;
4068
4069                 $tag_limit = 6;
4070
4071                 $formatted_tags = array();
4072
4073                 foreach ($tags as $tag) {
4074                         $num_tags++;
4075                         $tag_escaped = str_replace("'", "\\'", $tag);
4076
4077                         if (mb_strlen($tag) > 30) {
4078                                 $tag = truncate_string($tag, 30);
4079                         }
4080
4081                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
4082
4083                         array_push($formatted_tags, $tag_str);
4084
4085                         $tmp_tags_str = implode(", ", $formatted_tags);
4086
4087                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
4088                                 break;
4089                         }
4090                 }
4091
4092                 $tags_str = implode(", ", $formatted_tags);
4093
4094                 if ($num_tags < count($tags)) {
4095                         $tags_str .= ", &hellip;";
4096                 }
4097
4098                 if ($num_tags == 0) {
4099                         $tags_str = __("no tags");
4100                 }
4101
4102                 return $tags_str;
4103
4104         }
4105
4106         function format_article_labels($labels, $id) {
4107
4108                 $labels_str = "";
4109
4110                 foreach ($labels as $l) {
4111                         $labels_str .= sprintf("<span class='hlLabelRef'
4112                                 style='color : %s; background-color : %s'>%s</span>",
4113                                         $l[2], $l[3], $l[1]);
4114                         }
4115
4116                 return $labels_str;
4117
4118         }
4119
4120         function format_article_note($id, $note) {
4121
4122                 $str = "<div class='articleNote'        onclick=\"editArticleNote($id)\">
4123                         <div class='noteEdit' onclick=\"editArticleNote($id)\">".
4124                         __('(edit note)')."</div>$note</div>";
4125
4126                 return $str;
4127         }
4128
4129         function toggle_collapse_cat($link, $cat_id, $mode) {
4130                 if ($cat_id > 0) {
4131                         $mode = bool_to_sql_bool($mode);
4132
4133                         db_query($link, "UPDATE ttrss_feed_categories SET
4134                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
4135                                 $_SESSION["uid"]);
4136                 } else {
4137                         $pref_name = '';
4138
4139                         switch ($cat_id) {
4140                         case -1:
4141                                 $pref_name = '_COLLAPSED_SPECIAL';
4142                                 break;
4143                         case -2:
4144                                 $pref_name = '_COLLAPSED_LABELS';
4145                                 break;
4146                         case 0:
4147                                 $pref_name = '_COLLAPSED_UNCAT';
4148                                 break;
4149                         }
4150
4151                         if ($pref_name) {
4152                                 if ($mode) {
4153                                         set_pref($link, $pref_name, 'true');
4154                                 } else {
4155                                         set_pref($link, $pref_name, 'false');
4156                                 }
4157                         }
4158                 }
4159         }
4160
4161         function remove_feed($link, $id, $owner_uid) {
4162
4163                 if ($id > 0) {
4164
4165                         /* save starred articles in Archived feed */
4166
4167                         db_query($link, "BEGIN");
4168
4169                         /* prepare feed if necessary */
4170
4171                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4172                                 WHERE id = '$id'");
4173
4174                         if (db_num_rows($result) == 0) {
4175                                 db_query($link, "INSERT INTO ttrss_archived_feeds
4176                                         (id, owner_uid, title, feed_url, site_url)
4177                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4178                                 WHERE id = '$id'");
4179                         }
4180
4181                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
4182                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
4183                                         marked = true AND owner_uid = $owner_uid");
4184
4185                         /* Remove access key for the feed */
4186
4187                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
4188                                 feed_id = '$id' AND owner_uid = $owner_uid");
4189
4190                         /* remove the feed */
4191
4192                         db_query($link, "DELETE FROM ttrss_feeds
4193                                         WHERE id = '$id' AND owner_uid = $owner_uid");
4194
4195                         db_query($link, "COMMIT");
4196
4197                         if (file_exists(ICONS_DIR . "/$id.ico")) {
4198                                 unlink(ICONS_DIR . "/$id.ico");
4199                         }
4200
4201                         ccache_remove($link, $id, $owner_uid);
4202
4203                 } else {
4204                         label_remove($link, -11-$id, $owner_uid);
4205                         ccache_remove($link, -11-$id, $owner_uid);
4206                 }
4207         }
4208
4209         function get_feed_category($link, $feed_cat, $parent_cat_id = false) {
4210                 if ($parent_cat_id) {
4211                         $parent_qpart = "parent_cat = '$parent_cat_id'";
4212                         $parent_insert = "'$parent_cat_id'";
4213                 } else {
4214                         $parent_qpart = "parent_cat IS NULL";
4215                         $parent_insert = "NULL";
4216                 }
4217
4218                 $result = db_query($link,
4219                         "SELECT id FROM ttrss_feed_categories
4220                         WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
4221
4222                 if (db_num_rows($result) == 0) {
4223                         return false;
4224                 } else {
4225                         return db_fetch_result($result, 0, "id");
4226                 }
4227         }
4228
4229         function add_feed_category($link, $feed_cat, $parent_cat_id = false) {
4230
4231                 if (!$feed_cat) return false;
4232
4233                 db_query($link, "BEGIN");
4234
4235                 if ($parent_cat_id) {
4236                         $parent_qpart = "parent_cat = '$parent_cat_id'";
4237                         $parent_insert = "'$parent_cat_id'";
4238                 } else {
4239                         $parent_qpart = "parent_cat IS NULL";
4240                         $parent_insert = "NULL";
4241                 }
4242
4243                 $result = db_query($link,
4244                         "SELECT id FROM ttrss_feed_categories
4245                         WHERE $parent_qpart AND title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
4246
4247                 if (db_num_rows($result) == 0) {
4248
4249                         $result = db_query($link,
4250                                 "INSERT INTO ttrss_feed_categories (owner_uid,title,parent_cat)
4251                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat', $parent_insert)");
4252
4253                         db_query($link, "COMMIT");
4254
4255                         return true;
4256                 }
4257
4258                 return false;
4259         }
4260
4261         function remove_feed_category($link, $id, $owner_uid) {
4262
4263                 db_query($link, "DELETE FROM ttrss_feed_categories
4264                         WHERE id = '$id' AND owner_uid = $owner_uid");
4265
4266                 ccache_remove($link, $id, $owner_uid, true);
4267         }
4268
4269         function archive_article($link, $id, $owner_uid) {
4270                 db_query($link, "BEGIN");
4271
4272                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4273                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
4274
4275                 if (db_num_rows($result) != 0) {
4276
4277                         /* prepare the archived table */
4278
4279                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4280
4281                         if ($feed_id) {
4282                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
4283                                         WHERE id = '$feed_id'");
4284
4285                                 if (db_num_rows($result) == 0) {
4286                                         db_query($link, "INSERT INTO ttrss_archived_feeds
4287                                                 (id, owner_uid, title, feed_url, site_url)
4288                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
4289                                         WHERE id = '$feed_id'");
4290                                 }
4291
4292                                 db_query($link, "UPDATE ttrss_user_entries
4293                                         SET orig_feed_id = feed_id, feed_id = NULL
4294                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4295                         }
4296                 }
4297
4298                 db_query($link, "COMMIT");
4299         }
4300
4301         function getArticleFeed($link, $id) {
4302                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4303                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4304
4305                 if (db_num_rows($result) != 0) {
4306                         return db_fetch_result($result, 0, "feed_id");
4307                 } else {
4308                         return 0;
4309                 }
4310         }
4311
4312         /**
4313          * Fixes incomplete URLs by prepending "http://".
4314          * Also replaces feed:// with http://, and
4315          * prepends a trailing slash if the url is a domain name only.
4316          *
4317          * @param string $url Possibly incomplete URL
4318          *
4319          * @return string Fixed URL.
4320          */
4321         function fix_url($url) {
4322                 if (strpos($url, '://') === false) {
4323                         $url = 'http://' . $url;
4324                 } else if (substr($url, 0, 5) == 'feed:') {
4325                         $url = 'http:' . substr($url, 5);
4326                 }
4327
4328                 //prepend slash if the URL has no slash in it
4329                 // "http://www.example" -> "http://www.example/"
4330                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
4331                         $url .= '/';
4332                 }
4333
4334                 if ($url != "http:///")
4335                         return $url;
4336                 else
4337                         return '';
4338         }
4339
4340         function validate_feed_url($url) {
4341                 $parts = parse_url($url);
4342
4343                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
4344
4345         }
4346
4347         function get_article_enclosures($link, $id) {
4348
4349                 $query = "SELECT * FROM ttrss_enclosures
4350                         WHERE post_id = '$id' AND content_url != ''";
4351
4352                 $rv = array();
4353
4354                 $result = db_query($link, $query);
4355
4356                 if (db_num_rows($result) > 0) {
4357                         while ($line = db_fetch_assoc($result)) {
4358                                 array_push($rv, $line);
4359                         }
4360                 }
4361
4362                 return $rv;
4363         }
4364
4365         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset, $include_nested = false) {
4366
4367                         $feeds = array();
4368
4369                         /* Labels */
4370
4371                         if ($cat_id == -4 || $cat_id == -2) {
4372                                 $counters = getLabelCounters($link, true);
4373
4374                                 foreach (array_values($counters) as $cv) {
4375
4376                                         $unread = $cv["counter"];
4377
4378                                         if ($unread || !$unread_only) {
4379
4380                                                 $row = array(
4381                                                                 "id" => $cv["id"],
4382                                                                 "title" => $cv["description"],
4383                                                                 "unread" => $cv["counter"],
4384                                                                 "cat_id" => -2,
4385                                                         );
4386
4387                                                 array_push($feeds, $row);
4388                                         }
4389                                 }
4390                         }
4391
4392                         /* Virtual feeds */
4393
4394                         if ($cat_id == -4 || $cat_id == -1) {
4395                                 foreach (array(-1, -2, -3, -4, -6, 0) as $i) {
4396                                         $unread = getFeedUnread($link, $i);
4397
4398                                         if ($unread || !$unread_only) {
4399                                                 $title = getFeedTitle($link, $i);
4400
4401                                                 $row = array(
4402                                                                 "id" => $i,
4403                                                                 "title" => $title,
4404                                                                 "unread" => $unread,
4405                                                                 "cat_id" => -1,
4406                                                         );
4407                                                 array_push($feeds, $row);
4408                                         }
4409
4410                                 }
4411                         }
4412
4413                         /* Child cats */
4414
4415                         if ($include_nested && $cat_id) {
4416                                 $result = db_query($link, "SELECT
4417                                         id, title FROM ttrss_feed_categories
4418                                         WHERE parent_cat = '$cat_id' AND owner_uid = " . $_SESSION["uid"] .
4419                                 " ORDER BY id, title");
4420
4421                                 while ($line = db_fetch_assoc($result)) {
4422                                         $unread = getFeedUnread($link, $line["id"], true) +
4423                                                 getCategoryChildrenUnread($link, $line["id"]);
4424
4425                                         if ($unread || !$unread_only) {
4426                                                 $row = array(
4427                                                                 "id" => $line["id"],
4428                                                                 "title" => $line["title"],
4429                                                                 "unread" => $unread,
4430                                                                 "is_cat" => true,
4431                                                         );
4432                                                 array_push($feeds, $row);
4433                                         }
4434                                 }
4435                         }
4436
4437                         /* Real feeds */
4438
4439                         if ($limit) {
4440                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
4441                         } else {
4442                                 $limit_qpart = "";
4443                         }
4444
4445                         if ($cat_id == -4 || $cat_id == -3) {
4446                                 $result = db_query($link, "SELECT
4447                                         id, feed_url, cat_id, title, order_id, ".
4448                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4449                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
4450                                                 " ORDER BY cat_id, title " . $limit_qpart);
4451                         } else {
4452
4453                                 if ($cat_id)
4454                                         $cat_qpart = "cat_id = '$cat_id'";
4455                                 else
4456                                         $cat_qpart = "cat_id IS NULL";
4457
4458                                 $result = db_query($link, "SELECT
4459                                         id, feed_url, cat_id, title, order_id, ".
4460                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
4461                                                 FROM ttrss_feeds WHERE
4462                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
4463                                                 " ORDER BY cat_id, title " . $limit_qpart);
4464                         }
4465
4466                         while ($line = db_fetch_assoc($result)) {
4467
4468                                 $unread = getFeedUnread($link, $line["id"]);
4469
4470                                 $has_icon = feed_has_icon($line['id']);
4471
4472                                 if ($unread || !$unread_only) {
4473
4474                                         $row = array(
4475                                                         "feed_url" => $line["feed_url"],
4476                                                         "title" => $line["title"],
4477                                                         "id" => (int)$line["id"],
4478                                                         "unread" => (int)$unread,
4479                                                         "has_icon" => $has_icon,
4480                                                         "cat_id" => (int)$line["cat_id"],
4481                                                         "last_updated" => strtotime($line["last_updated"]),
4482                                                         "order_id" => (int) $line["order_id"],
4483                                                 );
4484
4485                                         array_push($feeds, $row);
4486                                 }
4487                         }
4488
4489                 return $feeds;
4490         }
4491
4492         function api_get_headlines($link, $feed_id, $limit, $offset,
4493                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
4494                                 $include_attachments, $since_id,
4495                                 $search = "", $search_mode = "", $match_on = "",
4496                                 $include_nested = false, $sanitize_content = true) {
4497
4498                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
4499                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
4500                                 $order, $offset, 0, false, $since_id, $include_nested);
4501
4502                         $result = $qfh_ret[0];
4503                         $feed_title = $qfh_ret[1];
4504
4505                         $headlines = array();
4506
4507                         while ($line = db_fetch_assoc($result)) {
4508                                 $is_updated = ($line["last_read"] == "" &&
4509                                         ($line["unread"] != "t" && $line["unread"] != "1"));
4510
4511                                 $tags = explode(",", $line["tag_cache"]);
4512                                 $labels = json_decode($line["label_cache"], true);
4513
4514                                 //if (!$tags) $tags = get_article_tags($link, $line["id"]);
4515                                 //if (!$labels) $labels = get_article_labels($link, $line["id"]);
4516
4517                                 $headline_row = array(
4518                                                 "id" => (int)$line["id"],
4519                                                 "unread" => sql_bool_to_bool($line["unread"]),
4520                                                 "marked" => sql_bool_to_bool($line["marked"]),
4521                                                 "published" => sql_bool_to_bool($line["published"]),
4522                                                 "updated" => strtotime($line["updated"]),
4523                                                 "is_updated" => $is_updated,
4524                                                 "title" => $line["title"],
4525                                                 "link" => $line["link"],
4526                                                 "feed_id" => $line["feed_id"],
4527                                                 "tags" => $tags,
4528                                         );
4529
4530                                         if ($include_attachments)
4531                                                 $headline_row['attachments'] = get_article_enclosures($link,
4532                                                         $line['id']);
4533
4534                                 if ($show_excerpt) {
4535                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
4536                                         $headline_row["excerpt"] = $excerpt;
4537                                 }
4538
4539                                 if ($show_content) {
4540                                         if ($sanitize_content) {
4541                                                 $headline_row["content"] = sanitize($link,
4542                                                         $line["content_preview"], false, false, $line["site_url"]);
4543                                         } else {
4544                                                 $headline_row["content"] = $line["content_preview"];
4545                                         }
4546                                 }
4547
4548                                 // unify label output to ease parsing
4549                                 if ($labels["no-labels"] == 1) $labels = array();
4550
4551                                 $headline_row["labels"] = $labels;
4552
4553                                 $headline_row["feed_title"] = $line["feed_title"];
4554
4555                                 $headline_row["comments_count"] = (int)$line["num_comments"];
4556                                 $headline_row["comments_link"] = $line["comments"];
4557
4558                                 $headline_row["always_display_attachments"] = sql_bool_to_bool($line["always_display_enclosures"]);
4559
4560                                 array_push($headlines, $headline_row);
4561                         }
4562
4563                         return $headlines;
4564         }
4565
4566         function generate_error_feed($link, $error) {
4567                 $reply = array();
4568
4569                 $reply['headlines']['id'] = -6;
4570                 $reply['headlines']['is_cat'] = false;
4571
4572                 $reply['headlines']['toolbar'] = '';
4573                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
4574
4575                 $reply['headlines-info'] = array("count" => 0,
4576                         "vgroup_last_feed" => '',
4577                         "unread" => 0,
4578                         "disable_cache" => true);
4579
4580                 return $reply;
4581         }
4582
4583
4584         function generate_dashboard_feed($link) {
4585                 $reply = array();
4586
4587                 $reply['headlines']['id'] = -5;
4588                 $reply['headlines']['is_cat'] = false;
4589
4590                 $reply['headlines']['toolbar'] = '';
4591                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
4592
4593                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
4594
4595                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
4596                         WHERE owner_uid = " . $_SESSION['uid']);
4597
4598                 $last_updated = db_fetch_result($result, 0, "last_updated");
4599                 $last_updated = make_local_datetime($link, $last_updated, false);
4600
4601                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
4602
4603                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
4604                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
4605
4606                 $num_errors = db_fetch_result($result, 0, "num_errors");
4607
4608                 if ($num_errors > 0) {
4609                         $reply['headlines']['content'] .= "<br/>";
4610                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
4611                                 __('Some feeds have update errors (click for details)')."</a>";
4612                 }
4613                 $reply['headlines']['content'] .= "</span></p>";
4614
4615                 $reply['headlines-info'] = array("count" => 0,
4616                         "vgroup_last_feed" => '',
4617                         "unread" => 0,
4618                         "disable_cache" => true);
4619
4620                 return $reply;
4621         }
4622
4623         function save_email_address($link, $email) {
4624                 // FIXME: implement persistent storage of emails
4625
4626                 if (!$_SESSION['stored_emails'])
4627                         $_SESSION['stored_emails'] = array();
4628
4629                 if (!in_array($email, $_SESSION['stored_emails']))
4630                         array_push($_SESSION['stored_emails'], $email);
4631         }
4632
4633         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4634                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4635
4636                 $sql_is_cat = bool_to_sql_bool($is_cat);
4637
4638                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4639                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4640                         AND owner_uid = " . $owner_uid);
4641
4642                 if (db_num_rows($result) == 1) {
4643                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4644
4645                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
4646                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
4647                                 AND owner_uid = " . $owner_uid);
4648
4649                         return $key;
4650
4651                 } else {
4652                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
4653                 }
4654         }
4655
4656         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
4657
4658                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4659
4660                 $sql_is_cat = bool_to_sql_bool($is_cat);
4661
4662                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
4663                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
4664                         AND owner_uid = " . $owner_uid);
4665
4666                 if (db_num_rows($result) == 1) {
4667                         return db_fetch_result($result, 0, "access_key");
4668                 } else {
4669                         $key = db_escape_string(sha1(uniqid(rand(), true)));
4670
4671                         $result = db_query($link, "INSERT INTO ttrss_access_keys
4672                                 (access_key, feed_id, is_cat, owner_uid)
4673                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
4674
4675                         return $key;
4676                 }
4677                 return false;
4678         }
4679
4680         function get_feeds_from_html($url, $content)
4681         {
4682                 $url     = fix_url($url);
4683                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
4684
4685                 libxml_use_internal_errors(true);
4686
4687                 $doc = new DOMDocument();
4688                 $doc->loadHTML($content);
4689                 $xpath = new DOMXPath($doc);
4690                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
4691                 $feedUrls = array();
4692                 foreach ($entries as $entry) {
4693                         if ($entry->hasAttribute('href')) {
4694                                 $title = $entry->getAttribute('title');
4695                                 if ($title == '') {
4696                                         $title = $entry->getAttribute('type');
4697                                 }
4698                                 $feedUrl = rewrite_relative_url(
4699                                         $baseUrl, $entry->getAttribute('href')
4700                                 );
4701                                 $feedUrls[$feedUrl] = $title;
4702                         }
4703                 }
4704                 return $feedUrls;
4705         }
4706
4707         function is_html($content) {
4708                 return preg_match("/<html|DOCTYPE html/i", $content) !== 0;
4709         }
4710
4711         function url_is_html($url, $login = false, $pass = false) {
4712                 return is_html(fetch_file_contents($url, false, $login, $pass));
4713         }
4714
4715         function print_label_select($link, $name, $value, $attributes = "") {
4716
4717                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
4718                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
4719
4720                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
4721                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
4722
4723                 while ($line = db_fetch_assoc($result)) {
4724
4725                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
4726
4727                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
4728                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
4729
4730                 }
4731
4732 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
4733
4734                 print "</select>";
4735
4736
4737         }
4738
4739         function format_article_enclosures($link, $id, $always_display_enclosures,
4740                                         $article_content) {
4741
4742                 $result = get_article_enclosures($link, $id);
4743                 $rv = '';
4744
4745                 if (count($result) > 0) {
4746
4747                         $entries_html = array();
4748                         $entries = array();
4749
4750                         foreach ($result as $line) {
4751
4752                                 $url = $line["content_url"];
4753                                 $ctype = $line["content_type"];
4754
4755                                 if (!$ctype) $ctype = __("unknown type");
4756
4757                                 $filename = substr($url, strrpos($url, "/")+1);
4758
4759 #                               $player = format_inline_player($link, $url, $ctype);
4760
4761 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4762 #                                       $filename . " (" . $ctype . ")" . "</a>";
4763
4764                                 $entry = "<div onclick=\"window.open('".htmlspecialchars($url)."')\"
4765                                         dojoType=\"dijit.MenuItem\">$filename ($ctype)</div>";
4766
4767                                 array_push($entries_html, $entry);
4768
4769                                 $entry = array();
4770
4771                                 $entry["type"] = $ctype;
4772                                 $entry["filename"] = $filename;
4773                                 $entry["url"] = $url;
4774
4775                                 array_push($entries, $entry);
4776                         }
4777
4778                         if (!get_pref($link, "STRIP_IMAGES")) {
4779                                 if ($always_display_enclosures ||
4780                                                         !preg_match("/<img/i", $article_content)) {
4781
4782                                         foreach ($entries as $entry) {
4783
4784                                                 if (preg_match("/image/", $entry["type"]) ||
4785                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
4786
4787                                                                 $rv .= "<p><img
4788                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
4789                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
4790
4791                                                 }
4792                                         }
4793                                 }
4794                         }
4795
4796                         $rv .= "<br/><div dojoType=\"dijit.form.DropDownButton\">".
4797                                 "<span>" . __('Attachments')."</span>";
4798                         $rv .= "<div dojoType=\"dijit.Menu\" style=\"display: none;\">";
4799
4800                         foreach ($entries_html as $entry) { $rv .= $entry; };
4801
4802                         $rv .= "</div></div>";
4803                 }
4804
4805                 return $rv;
4806         }
4807
4808         function getLastArticleId($link) {
4809                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
4810                         WHERE owner_uid = " . $_SESSION["uid"]);
4811
4812                 if (db_num_rows($result) == 1) {
4813                         return db_fetch_result($result, 0, "id");
4814                 } else {
4815                         return -1;
4816                 }
4817         }
4818
4819         function build_url($parts) {
4820                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
4821         }
4822
4823         /**
4824          * Converts a (possibly) relative URL to a absolute one.
4825          *
4826          * @param string $url     Base URL (i.e. from where the document is)
4827          * @param string $rel_url Possibly relative URL in the document
4828          *
4829          * @return string Absolute URL
4830          */
4831         function rewrite_relative_url($url, $rel_url) {
4832                 if (strpos($rel_url, "magnet:") === 0) {
4833                         return $rel_url;
4834                 } else if (strpos($rel_url, "://") !== false) {
4835                         return $rel_url;
4836                 } else if (strpos($rel_url, "//") === 0) {
4837                         # protocol-relative URL (rare but they exist)
4838                         return $rel_url;
4839                 } else if (strpos($rel_url, "/") === 0)
4840                 {
4841                         $parts = parse_url($url);
4842                         $parts['path'] = $rel_url;
4843
4844                         return build_url($parts);
4845
4846                 } else {
4847                         $parts = parse_url($url);
4848                         if (!isset($parts['path'])) {
4849                                 $parts['path'] = '/';
4850                         }
4851                         $dir = $parts['path'];
4852                         if (substr($dir, -1) !== '/') {
4853                                 $dir = dirname($parts['path']);
4854                                 $dir !== '/' && $dir .= '/';
4855                         }
4856                         $parts['path'] = $dir . $rel_url;
4857
4858                         return build_url($parts);
4859                 }
4860         }
4861
4862         function sphinx_search($query, $offset = 0, $limit = 30) {
4863                 require_once 'lib/sphinxapi.php';
4864
4865                 $sphinxClient = new SphinxClient();
4866
4867                 $sphinxClient->SetServer('localhost', 9312);
4868                 $sphinxClient->SetConnectTimeout(1);
4869
4870                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
4871                         'feed_title' => 20));
4872
4873                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
4874                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
4875                 $sphinxClient->SetLimits($offset, $limit, 1000);
4876                 $sphinxClient->SetArrayResult(false);
4877                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
4878
4879                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
4880
4881                 $ids = array();
4882
4883                 if (is_array($result['matches'])) {
4884                         foreach (array_keys($result['matches']) as $int_id) {
4885                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
4886                                 array_push($ids, $ref_id);
4887                         }
4888                 }
4889
4890                 return $ids;
4891         }
4892
4893         function cleanup_tags($link, $days = 14, $limit = 1000) {
4894
4895                 if (DB_TYPE == "pgsql") {
4896                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
4897                 } else if (DB_TYPE == "mysql") {
4898                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
4899                 }
4900
4901                 $tags_deleted = 0;
4902
4903                 while ($limit > 0) {
4904                         $limit_part = 500;
4905
4906                         $query = "SELECT ttrss_tags.id AS id
4907                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
4908                                 WHERE post_int_id = int_id AND $interval_query AND
4909                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
4910
4911                         $result = db_query($link, $query);
4912
4913                         $ids = array();
4914
4915                         while ($line = db_fetch_assoc($result)) {
4916                                 array_push($ids, $line['id']);
4917                         }
4918
4919                         if (count($ids) > 0) {
4920                                 $ids = join(",", $ids);
4921                                 print ".";
4922
4923                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
4924                                 $tags_deleted += db_affected_rows($link, $tmp_result);
4925                         } else {
4926                                 break;
4927                         }
4928
4929                         $limit -= $limit_part;
4930                 }
4931
4932                 print "\n";
4933
4934                 return $tags_deleted;
4935         }
4936
4937         function print_user_stylesheet($link) {
4938                 $value = get_pref($link, 'USER_STYLESHEET');
4939
4940                 if ($value) {
4941                         print "<style type=\"text/css\">";
4942                         print str_replace("<br/>", "\n", $value);
4943                         print "</style>";
4944                 }
4945
4946         }
4947
4948 /*      function rewrite_urls($line) {
4949                 global $url_regex;
4950
4951                 $urls = null;
4952
4953                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
4954                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
4955
4956                 return $result;
4957         } */
4958
4959         function rewrite_urls($html) {
4960                 libxml_use_internal_errors(true);
4961
4962                 $charset_hack = '<head>
4963                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
4964                 </head>';
4965
4966                 $doc = new DOMDocument();
4967                 $doc->loadHTML($charset_hack . $html);
4968                 $xpath = new DOMXPath($doc);
4969
4970                 $entries = $xpath->query('//*/text()');
4971
4972                 foreach ($entries as $entry) {
4973                         if (strstr($entry->wholeText, "://") !== false) {
4974                                 $text = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
4975                                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $entry->wholeText);
4976
4977                                 if ($text != $entry->wholeText) {
4978                                         $cdoc = new DOMDocument();
4979                                         $cdoc->loadHTML($charset_hack . $text);
4980
4981
4982                                         foreach ($cdoc->childNodes as $cnode) {
4983                                                 $cnode = $doc->importNode($cnode, true);
4984
4985                                                 if ($cnode) {
4986                                                         $entry->parentNode->insertBefore($cnode);
4987                                                 }
4988                                         }
4989
4990                                         $entry->parentNode->removeChild($entry);
4991
4992                                 }
4993                         }
4994                 }
4995
4996                 $node = $doc->getElementsByTagName('body')->item(0);
4997
4998                 // http://tt-rss.org/forum/viewtopic.php?f=1&t=970
4999                 if ($node)
5000                         return $doc->saveXML($node, LIBXML_NOEMPTYTAG);
5001                 else
5002                         return $html;
5003         }
5004
5005         function filter_to_sql($link, $filter, $owner_uid) {
5006                 $query = array();
5007
5008                 if (DB_TYPE == "pgsql")
5009                         $reg_qpart = "~";
5010                 else
5011                         $reg_qpart = "REGEXP";
5012
5013                 foreach ($filter["rules"] AS $rule) {
5014                         $regexp_valid = preg_match('/' . $rule['reg_exp'] . '/',
5015                                 $rule['reg_exp']) !== FALSE;
5016
5017                         if ($regexp_valid) {
5018
5019                                 $rule['reg_exp'] = db_escape_string($rule['reg_exp']);
5020
5021                                 switch ($rule["type"]) {
5022                                         case "title":
5023                                                 $qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
5024                                                         $rule['reg_exp'] . "')";
5025                                                 break;
5026                                         case "content":
5027                                                 $qpart = "LOWER(ttrss_entries.content) $reg_qpart LOWER('".
5028                                                         $rule['reg_exp'] . "')";
5029                                                 break;
5030                                         case "both":
5031                                                 $qpart = "LOWER(ttrss_entries.title) $reg_qpart LOWER('".
5032                                                         $rule['reg_exp'] . "') OR LOWER(" .
5033                                                         "ttrss_entries.content) $reg_qpart LOWER('" . $rule['reg_exp'] . "')";
5034                                                 break;
5035                                         case "tag":
5036                                                 $qpart = "LOWER(ttrss_user_entries.tag_cache) $reg_qpart LOWER('".
5037                                                         $rule['reg_exp'] . "')";
5038                                                 break;
5039                                         case "link":
5040                                                 $qpart = "LOWER(ttrss_entries.link) $reg_qpart LOWER('".
5041                                                         $rule['reg_exp'] . "')";
5042                                                 break;
5043                                         case "author":
5044                                                 $qpart = "LOWER(ttrss_entries.author) $reg_qpart LOWER('".
5045                                                         $rule['reg_exp'] . "')";
5046                                                 break;
5047                                 }
5048
5049                                 if (isset($rule["feed_id"]) && $rule["feed_id"] > 0) {
5050                                         $qpart .= " AND feed_id = " . db_escape_string($rule["feed_id"]);
5051                                 }
5052
5053                                 if (isset($rule["cat_id"])) {
5054
5055                                         if ($rule["cat_id"] > 0) {
5056                                                 $children = getChildCategories($link, $rule["cat_id"], $owner_uid);
5057                                                 array_push($children, $rule["cat_id"]);
5058
5059                                                 $children = join(",", $children);
5060
5061                                                 $cat_qpart = "cat_id IN ($children)";
5062                                         } else {
5063                                                 $cat_qpart = "cat_id IS NULL";
5064                                         }
5065
5066                                         $qpart .= " AND $cat_qpart";
5067                                 }
5068
5069                                 array_push($query, "($qpart)");
5070
5071                         }
5072                 }
5073
5074                 if (count($query) > 0) {
5075                         return "(" . join($filter["match_any_rule"] ? "OR" : "AND", $query) . ")";
5076                 } else {
5077                         return "(false)";
5078                 }
5079         }
5080
5081         // Status codes:
5082         // -1  - never connected
5083         // 0   - no data received
5084         // 1   - data received successfully
5085         // 2   - did not receive valid data
5086         // >10 - server error, code + 10 (e.g. 16 means server error 6)
5087
5088         function get_linked_feeds($link, $instance_id = false) {
5089                 if ($instance_id)
5090                         $instance_qpart = "id = '$instance_id' AND ";
5091                 else
5092                         $instance_qpart = "";
5093
5094                 if (DB_TYPE == "pgsql") {
5095                         $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'";
5096                 } else {
5097                         $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)";
5098                 }
5099
5100                 $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances
5101                         WHERE $instance_qpart $date_qpart ORDER BY last_connected");
5102
5103                 while ($line = db_fetch_assoc($result)) {
5104                         $id = $line['id'];
5105
5106                         _debug("Updating: " . $line['access_url'] . " ($id)");
5107
5108                         $fetch_url = $line['access_url'] . '/public.php?op=fbexport';
5109                         $post_query = 'key=' . $line['access_key'];
5110
5111                         $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
5112
5113                         // try doing it the old way
5114                         if (!$feeds) {
5115                                 $fetch_url = $line['access_url'] . '/backend.php?op=fbexport';
5116                                 $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query);
5117                         }
5118
5119                         if ($feeds) {
5120                                 $feeds = json_decode($feeds, true);
5121
5122                                 if ($feeds) {
5123                                         if ($feeds['error']) {
5124                                                 $status = $feeds['error']['code'] + 10;
5125                                         } else {
5126                                                 $status = 1;
5127
5128                                                 if (count($feeds['feeds']) > 0) {
5129
5130                                                         db_query($link, "DELETE FROM ttrss_linked_feeds
5131                                                                 WHERE instance_id = '$id'");
5132
5133                                                         foreach ($feeds['feeds'] as $feed) {
5134                                                                 $feed_url = db_escape_string($feed['feed_url']);
5135                                                                 $title = db_escape_string($feed['title']);
5136                                                                 $subscribers = db_escape_string($feed['subscribers']);
5137                                                                 $site_url = db_escape_string($feed['site_url']);
5138
5139                                                                 db_query($link, "INSERT INTO ttrss_linked_feeds
5140                                                                         (feed_url, site_url, title, subscribers, instance_id, created, updated)
5141                                                                 VALUES
5142                                                                         ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())");
5143                                                         }
5144                                                 } else {
5145                                                         // received 0 feeds, this might indicate that
5146                                                         // the instance on the other hand is rebuilding feedbrowser cache
5147                                                         // we will try again later
5148
5149                                                         // TODO: maybe perform expiration based on updated here?
5150                                                 }
5151
5152                                                 _debug("Processed " . count($feeds['feeds']) . " feeds.");
5153                                         }
5154                                 } else {
5155                                         $status = 2;
5156                                 }
5157
5158                         } else {
5159                                 $status = 0;
5160                         }
5161
5162                         _debug("Status: $status");
5163
5164                         db_query($link, "UPDATE ttrss_linked_instances SET
5165                                 last_status_out = '$status', last_connected = NOW() WHERE id = '$id'");
5166
5167                 }
5168         }
5169
5170         function make_feed_browser($link, $search, $limit, $mode = 1) {
5171
5172                 $owner_uid = $_SESSION["uid"];
5173                 $rv = '';
5174
5175                 if ($search) {
5176                         $search_qpart = "AND (UPPER(feed_url) LIKE UPPER('%$search%') OR
5177                                                 UPPER(title) LIKE UPPER('%$search%'))";
5178                 } else {
5179                         $search_qpart = "";
5180                 }
5181
5182                 if ($mode == 1) {
5183                         /* $result = db_query($link, "SELECT feed_url, subscribers FROM
5184                          ttrss_feedbrowser_cache WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5185                         WHERE tf.feed_url = ttrss_feedbrowser_cache.feed_url
5186                         AND owner_uid = '$owner_uid') $search_qpart
5187                         ORDER BY subscribers DESC LIMIT $limit"); */
5188
5189                         $result = db_query($link, "SELECT feed_url, site_url, title, SUM(subscribers) AS subscribers FROM
5190                                                 (SELECT feed_url, site_url, title, subscribers FROM ttrss_feedbrowser_cache UNION ALL
5191                                                         SELECT feed_url, site_url, title, subscribers FROM ttrss_linked_feeds) AS qqq
5192                                                 WHERE
5193                                                         (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5194                                                                 WHERE tf.feed_url = qqq.feed_url
5195                                                                         AND owner_uid = '$owner_uid') $search_qpart
5196                                                 GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT $limit");
5197
5198                 } else if ($mode == 2) {
5199                         $result = db_query($link, "SELECT *,
5200                                                 (SELECT COUNT(*) FROM ttrss_user_entries WHERE
5201                                                         orig_feed_id = ttrss_archived_feeds.id) AS articles_archived
5202                                                 FROM
5203                                                         ttrss_archived_feeds
5204                                                 WHERE
5205                                                 (SELECT COUNT(*) FROM ttrss_feeds
5206                                                         WHERE ttrss_feeds.feed_url = ttrss_archived_feeds.feed_url AND
5207                                                                 owner_uid = '$owner_uid') = 0   AND
5208                                                 owner_uid = '$owner_uid' $search_qpart
5209                                                 ORDER BY id DESC LIMIT $limit");
5210                 }
5211
5212                 $feedctr = 0;
5213
5214                 while ($line = db_fetch_assoc($result)) {
5215
5216                         if ($mode == 1) {
5217
5218                                 $feed_url = htmlspecialchars($line["feed_url"]);
5219                                 $site_url = htmlspecialchars($line["site_url"]);
5220                                 $subscribers = $line["subscribers"];
5221
5222                                 $check_box = "<input onclick='toggleSelectListRow2(this)'
5223                                                         dojoType=\"dijit.form.CheckBox\"
5224                                                         type=\"checkbox\" \">";
5225
5226                                 $class = ($feedctr % 2) ? "even" : "odd";
5227
5228                                 $site_url = "<a target=\"_blank\"
5229                                                         href=\"$site_url\">
5230                                                         <span class=\"fb_feedTitle\">".
5231                                 htmlspecialchars($line["title"])."</span></a>";
5232
5233                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5234                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5235                                                         style='vertical-align : middle'></a>";
5236
5237                                 $rv .= "<li>$check_box $feed_url $site_url".
5238                                                         "&nbsp;<span class='subscribers'>($subscribers)</span></li>";
5239
5240                         } else if ($mode == 2) {
5241                                 $feed_url = htmlspecialchars($line["feed_url"]);
5242                                 $site_url = htmlspecialchars($line["site_url"]);
5243                                 $title = htmlspecialchars($line["title"]);
5244
5245                                 $check_box = "<input onclick='toggleSelectListRow2(this)' dojoType=\"dijit.form.CheckBox\"
5246                                                         type=\"checkbox\">";
5247
5248                                 $class = ($feedctr % 2) ? "even" : "odd";
5249
5250                                 if ($line['articles_archived'] > 0) {
5251                                         $archived = sprintf(__("%d archived articles"), $line['articles_archived']);
5252                                         $archived = "&nbsp;<span class='subscribers'>($archived)</span>";
5253                                 } else {
5254                                         $archived = '';
5255                                 }
5256
5257                                 $site_url = "<a target=\"_blank\"
5258                                                         href=\"$site_url\">
5259                                                         <span class=\"fb_feedTitle\">".
5260                                 htmlspecialchars($line["title"])."</span></a>";
5261
5262                                 $feed_url = "<a target=\"_blank\" class=\"fb_feedUrl\"
5263                                                         href=\"$feed_url\"><img src='images/feed-icon-12x12.png'
5264                                                         style='vertical-align : middle'></a>";
5265
5266
5267                                 $rv .= "<li id=\"FBROW-".$line["id"]."\">".
5268                                                         "$check_box $feed_url $site_url $archived</li>";
5269                         }
5270
5271                         ++$feedctr;
5272                 }
5273
5274                 if ($feedctr == 0) {
5275                         $rv .= "<li style=\"text-align : center\"><p>".__('No feeds found.')."</p></li>";
5276                 }
5277
5278                 return $rv;
5279         }
5280
5281         if (!function_exists('gzdecode')) {
5282                 function gzdecode($string) { // no support for 2nd argument
5283                         return file_get_contents('compress.zlib://data:who/cares;base64,'.
5284                                 base64_encode($string));
5285                 }
5286         }
5287
5288         function perform_data_import($link, $filename, $owner_uid) {
5289
5290                 $num_imported = 0;
5291                 $num_processed = 0;
5292                 $num_feeds_created = 0;
5293
5294                 $doc = @DOMDocument::load($filename);
5295
5296                 if (!$doc) {
5297                         $contents = file_get_contents($filename);
5298
5299                         if ($contents) {
5300                                 $data = @gzuncompress($contents);
5301                         }
5302
5303                         if (!$data) {
5304                                 $data = @gzdecode($contents);
5305                         }
5306
5307                         if ($data)
5308                                 $doc = DOMDocument::loadXML($data);
5309                 }
5310
5311                 if ($doc) {
5312
5313                         $xpath = new DOMXpath($doc);
5314
5315                         $container = $doc->firstChild;
5316
5317                         if ($container && $container->hasAttribute('schema-version')) {
5318                                 $schema_version = $container->getAttribute('schema-version');
5319
5320                                 if ($schema_version != SCHEMA_VERSION) {
5321                                         print "<p>" .__("Could not import: incorrect schema version.") . "</p>";
5322                                         return;
5323                                 }
5324
5325                         } else {
5326                                 print "<p>" . __("Could not import: unrecognized document format.") . "</p>";
5327                                 return;
5328                         }
5329
5330                         $articles = $xpath->query("//article");
5331
5332                         foreach ($articles as $article_node) {
5333                                 if ($article_node->childNodes) {
5334
5335                                         $ref_id = 0;
5336
5337                                         $article = array();
5338
5339                                         foreach ($article_node->childNodes as $child) {
5340                                                 if ($child->nodeName != 'label_cache')
5341                                                         $article[$child->nodeName] = db_escape_string($child->nodeValue);
5342                                                 else
5343                                                         $article[$child->nodeName] = $child->nodeValue;
5344                                         }
5345
5346                                         //print_r($article);
5347
5348                                         if ($article['guid']) {
5349
5350                                                 ++$num_processed;
5351
5352                                                 //db_query($link, "BEGIN");
5353
5354                                                 //print 'GUID:' . $article['guid'] . "\n";
5355
5356                                                 $result = db_query($link, "SELECT id FROM ttrss_entries
5357                                                         WHERE guid = '".$article['guid']."'");
5358
5359                                                 if (db_num_rows($result) == 0) {
5360
5361                                                         $result = db_query($link,
5362                                                                 "INSERT INTO ttrss_entries
5363                                                                         (title,
5364                                                                         guid,
5365                                                                         link,
5366                                                                         updated,
5367                                                                         content,
5368                                                                         content_hash,
5369                                                                         no_orig_date,
5370                                                                         date_updated,
5371                                                                         date_entered,
5372                                                                         comments,
5373                                                                         num_comments,
5374                                                                         author)
5375                                                                 VALUES
5376                                                                         ('".$article['title']."',
5377                                                                         '".$article['guid']."',
5378                                                                         '".$article['link']."',
5379                                                                         '".$article['updated']."',
5380                                                                         '".$article['content']."',
5381                                                                         '".sha1($article['content'])."',
5382                                                                         false,
5383                                                                         NOW(),
5384                                                                         NOW(),
5385                                                                         '',
5386                                                                         '0',
5387                                                                         '')");
5388
5389                                                         $result = db_query($link, "SELECT id FROM ttrss_entries
5390                                                                 WHERE guid = '".$article['guid']."'");
5391
5392                                                         if (db_num_rows($result) != 0) {
5393                                                                 $ref_id = db_fetch_result($result, 0, "id");
5394                                                         }
5395
5396                                                 } else {
5397                                                         $ref_id = db_fetch_result($result, 0, "id");
5398                                                 }
5399
5400                                                 //print "Got ref ID: $ref_id\n";
5401
5402                                                 if ($ref_id) {
5403
5404                                                         $feed_url = $article['feed_url'];
5405                                                         $feed_title = $article['feed_title'];
5406
5407                                                         $feed = 'NULL';
5408
5409                                                         if ($feed_url && $feed_title) {
5410                                                                 $result = db_query($link, "SELECT id FROM ttrss_feeds
5411                                                                         WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
5412
5413                                                                 if (db_num_rows($result) != 0) {
5414                                                                         $feed = db_fetch_result($result, 0, "id");
5415                                                                 } else {
5416                                                                         // try autocreating feed in Uncategorized...
5417
5418                                                                         $result = db_query($link, "INSERT INTO ttrss_feeds (owner_uid,
5419                                                                                 feed_url, title) VALUES ($owner_uid, '$feed_url', '$feed_title')");
5420
5421                                                                         $result = db_query($link, "SELECT id FROM ttrss_feeds
5422                                                                                 WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
5423
5424                                                                         if (db_num_rows($result) != 0) {
5425                                                                                 ++$num_feeds_created;
5426
5427                                                                                 $feed = db_fetch_result($result, 0, "id");
5428                                                                         }
5429                                                                 }
5430                                                         }
5431
5432                                                         if ($feed != 'NULL')
5433                                                                 $feed_qpart = "feed_id = $feed";
5434                                                         else
5435                                                                 $feed_qpart = "feed_id IS NULL";
5436
5437                                                         //print "$ref_id / $feed / " . $article['title'] . "\n";
5438
5439                                                         $result = db_query($link, "SELECT int_id FROM ttrss_user_entries
5440                                                                 WHERE ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND $feed_qpart");
5441
5442                                                         if (db_num_rows($result) == 0) {
5443
5444                                                                 $marked = bool_to_sql_bool(sql_bool_to_bool($article['marked']));
5445                                                                 $published = bool_to_sql_bool(sql_bool_to_bool($article['published']));
5446                                                                 $score = (int) $article['score'];
5447
5448                                                                 $tag_cache = $article['tag_cache'];
5449                                                                 $label_cache = db_escape_string($article['label_cache']);
5450                                                                 $note = $article['note'];
5451
5452                                                                 //print "Importing " . $article['title'] . "<br/>";
5453
5454                                                                 ++$num_imported;
5455
5456                                                                 $result = db_query($link,
5457                                                                         "INSERT INTO ttrss_user_entries
5458                                                                         (ref_id, owner_uid, feed_id, unread, last_read, marked,
5459                                                                                 published, score, tag_cache, label_cache, uuid, note)
5460                                                                         VALUES ($ref_id, $owner_uid, $feed, false,
5461                                                                                 NULL, $marked, $published, $score, '$tag_cache',
5462                                                                                         '$label_cache', '', '$note')");
5463
5464                                                                 $label_cache = json_decode($label_cache, true);
5465
5466                                                                 if (is_array($label_cache) && $label_cache["no-labels"] != 1) {
5467                                                                         foreach ($label_cache as $label) {
5468
5469                                                                                 label_create($link, $label[1],
5470                                                                                         $label[2], $label[3], $owner_uid);
5471
5472                                                                                 label_add_article($link, $ref_id, $label[1], $owner_uid);
5473
5474                                                                         }
5475                                                                 }
5476
5477                                                                 //db_query($link, "COMMIT");
5478                                                         }
5479                                                 }
5480                                         }
5481                                 }
5482                         }
5483
5484                         print "<p>" .
5485                                 T_sprintf("Finished: %d articles processed, %d imported, %d feeds created.",
5486                                         $num_processed, $num_imported, $num_feeds_created) .
5487                                         "</p>";
5488
5489                 } else {
5490
5491                         print "<p>" . __("Could not load XML document.") . "</p>";
5492
5493                 }
5494         }
5495
5496         function get_random_bytes($length) {
5497                 if (function_exists('openssl_random_pseudo_bytes')) {
5498                         return openssl_random_pseudo_bytes($length);
5499                 } else {
5500                         $output = "";
5501
5502                         for ($i = 0; $i < $length; $i++)
5503                                 $output .= chr(mt_rand(0, 255));
5504
5505                         return $output;
5506                 }
5507         }
5508
5509         function read_stdin() {
5510                 $fp = fopen("php://stdin", "r");
5511
5512                 if ($fp) {
5513                         $line = trim(fgets($fp));
5514                         fclose($fp);
5515                         return $line;
5516                 }
5517
5518                 return null;
5519         }
5520
5521         function tmpdirname($path, $prefix) {
5522                 // Use PHP's tmpfile function to create a temporary
5523                 // directory name. Delete the file and keep the name.
5524                 $tempname = tempnam($path,$prefix);
5525                 if (!$tempname)
5526                         return false;
5527
5528                 if (!unlink($tempname))
5529                         return false;
5530
5531        return $tempname;
5532         }
5533
5534         function getFeedCategory($link, $feed) {
5535                 $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
5536                         WHERE id = '$feed'");
5537
5538                 if (db_num_rows($result) > 0) {
5539                         return db_fetch_result($result, 0, "cat_id");
5540                 } else {
5541                         return false;
5542                 }
5543
5544         }
5545
5546         function create_published_article($link, $title, $url, $content, $owner_uid) {
5547                 $guid = sha1($url);
5548                 $content_hash = sha1($content);
5549
5550                 $rc = false;
5551
5552                 if (!$title) $title = $url;
5553                 if (!$title && !$url) return false;
5554
5555                 if (filter_var($url, FILTER_VALIDATE_URL) === FALSE) return false;
5556
5557                 db_query($link, "BEGIN");
5558
5559                 // only check for our user data here, others might have shared this with different content etc
5560                 $result = db_query($link, "SELECT id FROM ttrss_entries, ttrss_user_entries WHERE
5561                         link = '$url' AND ref_id = id AND owner_uid = '$owner_uid' LIMIT 1");
5562
5563                 if (db_num_rows($result) != 0) {
5564                         $ref_id = db_fetch_result($result, 0, "id");
5565
5566                         $result = db_query($link, "SELECT int_id FROM ttrss_user_entries WHERE
5567                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' LIMIT 1");
5568
5569                         if (db_num_rows($result) != 0) {
5570                                 $int_id = db_fetch_result($result, 0, "int_id");
5571
5572                                 db_query($link, "UPDATE ttrss_entries SET
5573                                         content = '$content', content_hash = '$content_hash' WHERE id = '$ref_id'");
5574
5575                                 db_query($link, "UPDATE ttrss_user_entries SET published = true WHERE
5576                                                 int_id = '$int_id' AND owner_uid = '$owner_uid'");
5577                         } else {
5578
5579                                 db_query($link, "INSERT INTO ttrss_user_entries
5580                                         (ref_id, uuid, feed_id, orig_feed_id, owner_uid, published, tag_cache, label_cache, last_read, note, unread)
5581                                         VALUES
5582                                         ('$ref_id', '', NULL, NULL, $owner_uid, true, '', '', NOW(), '', false)");
5583                         }
5584
5585                         $rc = true;
5586
5587                 } else {
5588                         $result = db_query($link, "INSERT INTO ttrss_entries
5589                                 (title, guid, link, updated, content, content_hash, date_entered, date_updated)
5590                                 VALUES
5591                                 ('$title', '$guid', '$url', NOW(), '$content', '$content_hash', NOW(), NOW())");
5592
5593                         $result = db_query($link, "SELECT id FROM ttrss_entries WHERE guid = '$guid'");
5594
5595                         if (db_num_rows($result) != 0) {
5596                                 $ref_id = db_fetch_result($result, 0, "id");
5597
5598                                 db_query($link, "INSERT INTO ttrss_user_entries
5599                                         (ref_id, uuid, feed_id, orig_feed_id, owner_uid, published, tag_cache, label_cache, last_read, note, unread)
5600                                         VALUES
5601                                         ('$ref_id', '', NULL, NULL, $owner_uid, true, '', '', NOW(), '', false)");
5602
5603                                 $rc = true;
5604                         }
5605                 }
5606
5607                 db_query($link, "COMMIT");
5608
5609                 return $rc;
5610         }
5611
5612 ?>