functions.php

   1 <?php
   2
   3 /*      if ($_GET["debug"]) {
   4                 define('DEFAULT_ERROR_LEVEL', E_ALL);
   5         } else {
   6                 define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
   7         } */
   8
   9         require_once "accept-to-gettext.php";
  10         require_once "gettext/gettext.inc";
  11
  12         require_once 'config.php';
  13
  14         function startup_gettext() {
  15
  16                 # Get locale from Accept-Language header
  17                 $lang = al2gt(array("en_US", "ru_RU"), "text/html");
  18
  19                 if ($lang) {
  20                         _setlocale(LC_MESSAGES, $lang);
  21                         _bindtextdomain("messages", "locale");
  22                         _textdomain("messages");
  23                         _bind_textdomain_codeset("messages", "UTF-8");
  24                 }
  25         }
  26
  27         if (ENABLE_TRANSLATIONS == true) {
  28                 startup_gettext();
  29         }
  30
  31         require_once 'db-prefs.php';
  32         require_once 'compat.php';
  33         require_once 'errors.php';
  34         require_once 'version.php';
  35
  36         define('MAGPIE_USER_AGENT_EXT', ' (Tiny Tiny RSS/' . VERSION . ')');
  37         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
  38
  39         require_once "magpierss/rss_fetch.inc";
  40         require_once 'magpierss/rss_utils.inc';
  41
  42         function _debug($msg) {
  43                 $ts = strftime("%H:%M:%S", time());
  44                 print "[$ts] $msg\n";
  45         }
  46
  47         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
  48
  49                 $rows = -1;
  50
  51                 if (DB_TYPE == "pgsql") {
  52 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
  53                                 marked = false AND feed_id = '$feed_id' AND
  54                                 (SELECT date_entered FROM ttrss_entries WHERE
  55                                         id = ref_id) < NOW() - INTERVAL '$purge_interval days'"); */
  56
  57                         $pg_version = get_pgsql_version($link);
  58
  59                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
  60
  61                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
  62                                         ttrss_entries.id = ref_id AND
  63                                         marked = false AND
  64                                         feed_id = '$feed_id' AND
  65                                         ttrss_entries.date_entered < NOW() - INTERVAL '$purge_interval days'");
  66
  67                         } else {
  68
  69                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
  70                                         USING ttrss_entries
  71                                         WHERE ttrss_entries.id = ref_id AND
  72                                         marked = false AND
  73                                         feed_id = '$feed_id' AND
  74                                         ttrss_entries.date_entered < NOW() - INTERVAL '$purge_interval days'");
  75                         }
  76
  77                         $rows = pg_affected_rows($result);
  78
  79                 } else {
  80
  81 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
  82                                 marked = false AND feed_id = '$feed_id' AND
  83                                 (SELECT date_entered FROM ttrss_entries WHERE
  84                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
  85
  86                         $result = db_query($link, "DELETE FROM ttrss_user_entries
  87                                 USING ttrss_user_entries, ttrss_entries
  88                                 WHERE ttrss_entries.id = ref_id AND
  89                                 marked = false AND
  90                                 feed_id = '$feed_id' AND
  91                                 ttrss_entries.date_entered < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
  92
  93                         $rows = mysql_affected_rows($link);
  94
  95                 }
  96
  97                 if ($debug) {
  98                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
  99                 }
 100         }
 101
 102         function global_purge_old_posts($link, $do_output = false, $limit = false) {
 103
 104                 $random_qpart = sql_random_function();
 105
 106                 if ($limit) {
 107                         $limit_qpart = "LIMIT $limit";
 108                 } else {
 109                         $limit_qpart = "";
 110                 }
 111
 112                 $result = db_query($link,
 113                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds
 114                                 ORDER BY $random_qpart $limit_qpart");
 115
 116                 while ($line = db_fetch_assoc($result)) {
 117
 118                         $feed_id = $line["id"];
 119                         $purge_interval = $line["purge_interval"];
 120                         $owner_uid = $line["owner_uid"];
 121
 122                         if ($purge_interval == 0) {
 123
 124                                 $tmp_result = db_query($link,
 125                                         "SELECT value FROM ttrss_user_prefs WHERE
 126                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
 127
 128                                 if (db_num_rows($tmp_result) != 0) {
 129                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
 130                                 }
 131                         }
 132
 133                         if ($do_output) {
 134 //                              print "Feed $feed_id: purge interval = $purge_interval\n";
 135                         }
 136
 137                         if ($purge_interval > 0) {
 138                                 purge_feed($link, $feed_id, $purge_interval, $do_output);
 139                         }
 140                 }
 141
 142                 // purge orphaned posts in main content table
 143                 db_query($link, "DELETE FROM ttrss_entries WHERE
 144                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 145
 146         }
 147
 148         function purge_old_posts($link) {
 149
 150                 $user_id = $_SESSION["uid"];
 151
 152                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
 153                         WHERE owner_uid = '$user_id'");
 154
 155                 while ($line = db_fetch_assoc($result)) {
 156
 157                         $feed_id = $line["id"];
 158                         $purge_interval = $line["purge_interval"];
 159
 160                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
 161
 162                         if ($purge_interval > 0) {
 163                                 purge_feed($link, $feed_id, $purge_interval);
 164                         }
 165                 }
 166
 167                 // purge orphaned posts in main content table
 168                 db_query($link, "DELETE FROM ttrss_entries WHERE
 169                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 170         }
 171
 172         function update_all_feeds($link, $fetch, $user_id = false, $force_daemon = false) {
 173
 174                 if (WEB_DEMO_MODE) return;
 175
 176                 if (!$user_id) {
 177                         $user_id = $_SESSION["uid"];
 178                         purge_old_posts($link);
 179                 }
 180
 181 //              db_query($link, "BEGIN");
 182
 183                 if (MAX_UPDATE_TIME > 0) {
 184                         if (DB_TYPE == "mysql") {
 185                                 $q_order = "RAND()";
 186                         } else {
 187                                 $q_order = "RANDOM()";
 188                         }
 189                 } else {
 190                         $q_order = "last_updated DESC";
 191                 }
 192
 193                 $result = db_query($link, "SELECT feed_url,id,
 194                         SUBSTRING(last_updated,1,19) AS last_updated,
 195                         update_interval FROM ttrss_feeds WHERE owner_uid = '$user_id'
 196                         ORDER BY $q_order");
 197
 198                 $upd_start = time();
 199
 200                 while ($line = db_fetch_assoc($result)) {
 201                         $upd_intl = $line["update_interval"];
 202
 203                         if (!$upd_intl || $upd_intl == 0) {
 204                                 $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id, false);
 205                         }
 206
 207                         if ($upd_intl < 0) {
 208                                 // Updates for this feed are disabled
 209                                 continue;
 210                         }
 211
 212                         if ($fetch || (!$line["last_updated"] ||
 213                                 time() - strtotime($line["last_updated"]) > ($upd_intl * 60))) {
 214
 215 //                              print "<!-- feed: ".$line["feed_url"]." -->";
 216
 217                                 update_rss_feed($link, $line["feed_url"], $line["id"], $force_daemon);
 218
 219                                 $upd_elapsed = time() - $upd_start;
 220
 221                                 if (MAX_UPDATE_TIME > 0 && $upd_elapsed > MAX_UPDATE_TIME) {
 222                                         return;
 223                                 }
 224                         }
 225                 }
 226
 227 //              db_query($link, "COMMIT");
 228
 229         }
 230
 231         function fetch_file_contents($url) {
 232                 if (USE_CURL_FOR_ICONS) {
 233                         $tmpfile = tempnam(TMP_DIRECTORY, "ttrss-tmp");
 234
 235                         $ch = curl_init($url);
 236                         $fp = fopen($tmpfile, "w");
 237
 238                         if ($fp) {
 239                                 curl_setopt($ch, CURLOPT_FILE, $fp);
 240                                 curl_exec($ch);
 241                                 curl_close($ch);
 242                                 fclose($fp);
 243                         }
 244
 245                         $contents =  file_get_contents($tmpfile);
 246                         unlink($tmpfile);
 247
 248                         return $contents;
 249
 250                 } else {
 251                         return file_get_contents($url);
 252                 }
 253
 254         }
 255
 256         // adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 257         // http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 258
 259         function get_favicon_url($url) {
 260
 261                 if ($html = @fetch_file_contents($url)) {
 262
 263                         if ( preg_match('/<link[^>]+rel="(?:shortcut )?icon"[^>]+?href="([^"]+?)"/si', $html, $matches)) {
 264                                 // Attempt to grab a favicon link from their webpage url
 265                                 $linkUrl = html_entity_decode($matches[1]);
 266
 267                                 if (substr($linkUrl, 0, 1) == '/') {
 268                                         $urlParts = parse_url($url);
 269                                         $faviconURL = $urlParts['scheme'].'://'.$urlParts['host'].$linkUrl;
 270                                 } else if (substr($linkUrl, 0, 7) == 'http://') {
 271                                         $faviconURL = $linkUrl;
 272                                 } else if (substr($url, -1, 1) == '/') {
 273                                         $faviconURL = $url.$linkUrl;
 274                                 } else {
 275                                         $faviconURL = $url.'/'.$linkUrl;
 276                                 }
 277
 278                         } else {
 279                                 // If unsuccessful, attempt to "guess" the favicon location
 280                                 $urlParts = parse_url($url);
 281                                 $faviconURL = $urlParts['scheme'].'://'.$urlParts['host'].'/favicon.ico';
 282                         }
 283                 }
 284
 285                 // Run a test to see if what we have attempted to get actually exists.
 286                 if(USE_CURL_FOR_ICONS || url_validate($faviconURL)) {
 287                         return $faviconURL;
 288                 } else {
 289                         return false;
 290                 }
 291         }
 292
 293         function url_validate($link) {
 294
 295                 $url_parts = @parse_url($link);
 296
 297                 if ( empty( $url_parts["host"] ) )
 298                                 return false;
 299
 300                 if ( !empty( $url_parts["path"] ) ) {
 301                                 $documentpath = $url_parts["path"];
 302                 } else {
 303                                 $documentpath = "/";
 304                 }
 305
 306                 if ( !empty( $url_parts["query"] ) )
 307                                 $documentpath .= "?" . $url_parts["query"];
 308
 309                 $host = $url_parts["host"];
 310                 $port = $url_parts["port"];
 311
 312                 if ( empty($port) )
 313                                 $port = "80";
 314
 315                 $socket = @fsockopen( $host, $port, $errno, $errstr, 30 );
 316
 317                 if ( !$socket )
 318                                 return false;
 319
 320                 fwrite ($socket, "HEAD ".$documentpath." HTTP/1.0\r\nHost: $host\r\n\r\n");
 321
 322                 $http_response = fgets( $socket, 22 );
 323
 324                 $responses = "/(200 OK)|(30[0-9] Moved)/";
 325                 if ( preg_match($responses, $http_response) ) {
 326                                 fclose($socket);
 327                                 return true;
 328                 } else {
 329                                 return false;
 330                 }
 331
 332         }
 333
 334         function check_feed_favicon($site_url, $feed, $link) {
 335                 $favicon_url = get_favicon_url($site_url);
 336
 337 #               print "FAVICON [$site_url]: $favicon_url\n";
 338
 339                 error_reporting(0);
 340
 341                 $icon_file = ICONS_DIR . "/$feed.ico";
 342
 343                 if ($favicon_url && !file_exists($icon_file)) {
 344                         $contents = fetch_file_contents($favicon_url);
 345
 346                         $fp = fopen($icon_file, "w");
 347
 348                         if ($fp) {
 349                                 fwrite($fp, $contents);
 350                                 fclose($fp);
 351                                 chmod($icon_file, 0644);
 352                         }
 353                 }
 354
 355                 error_reporting(DEFAULT_ERROR_LEVEL);
 356
 357         }
 358
 359         function update_rss_feed($link, $feed_url, $feed, $ignore_daemon = false) {
 360
 361                 if (DAEMON_REFRESH_ONLY && !$_GET["daemon"] && !$ignore_daemon) {
 362                         return;
 363                 }
 364
 365                 $result = db_query($link, "SELECT update_interval,auth_login,auth_pass
 366                         FROM ttrss_feeds WHERE id = '$feed'");
 367
 368                 $auth_login = db_unescape_string(db_fetch_result($result, 0, "auth_login"));
 369                 $auth_pass = db_unescape_string(db_fetch_result($result, 0, "auth_pass"));
 370
 371                 $update_interval = db_fetch_result($result, 0, "update_interval");
 372
 373                 if ($update_interval < 0) { return; }
 374
 375                 $feed = db_escape_string($feed);
 376
 377                 $fetch_url = $feed_url;
 378
 379                 if ($auth_login && $auth_pass) {
 380                         $url_parts = array();
 381                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 382
 383                         if ($url_parts[1] && $url_parts[2]) {
 384                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 385                         }
 386
 387                 }
 388
 389                 error_reporting(0);
 390                 $rss = fetch_rss($fetch_url);
 391                 error_reporting (DEFAULT_ERROR_LEVEL);
 392
 393                 $feed = db_escape_string($feed);
 394
 395                 if ($rss) {
 396
 397 //                      db_query($link, "BEGIN");
 398
 399                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 400                                 FROM ttrss_feeds WHERE id = '$feed'");
 401
 402                         $registered_title = db_fetch_result($result, 0, "title");
 403                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 404                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 405
 406                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 407
 408                         if (get_pref($link, 'ENABLE_FEED_ICONS', $owner_uid, false)) {
 409                                 check_feed_favicon($rss->channel["link"], $feed, $link);
 410                         }
 411
 412                         if (!$registered_title || $registered_title == "[Unknown]") {
 413
 414                                 $feed_title = db_escape_string($rss->channel["title"]);
 415
 416                                 db_query($link, "UPDATE ttrss_feeds SET
 417                                         title = '$feed_title' WHERE id = '$feed'");
 418                         }
 419
 420                         $site_url = $rss->channel["link"];
 421                         // weird, weird Magpie
 422                         if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 423
 424                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 425                                 db_query($link, "UPDATE ttrss_feeds SET
 426                                         site_url = '$site_url' WHERE id = '$feed'");
 427                         }
 428
 429 //                      print "I: " . $rss->channel["image"]["url"];
 430
 431                         $icon_url = $rss->image["url"];
 432
 433                         if ($icon_url && !$orig_icon_url != db_escape_string($icon_url)) {
 434                                 $icon_url = db_escape_string($icon_url);
 435                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 436                         }
 437
 438
 439                         $filters = array();
 440
 441                         $result = db_query($link, "SELECT reg_exp,
 442                                 ttrss_filter_types.name AS name,
 443                                 ttrss_filter_actions.name AS action,
 444                                 inverse,
 445                                 action_param
 446                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
 447                                         enabled = true AND
 448                                         owner_uid = $owner_uid AND
 449                                         ttrss_filter_types.id = filter_type AND
 450                                         ttrss_filter_actions.id = action_id AND
 451                                 (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
 452
 453                         while ($line = db_fetch_assoc($result)) {
 454                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 455
 456                                 $filter["reg_exp"] = $line["reg_exp"];
 457                                 $filter["action"] = $line["action"];
 458                                 $filter["action_param"] = $line["action_param"];
 459                                 $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
 460
 461                                 array_push($filters[$line["name"]], $filter);
 462                         }
 463
 464                         $iterator = $rss->items;
 465
 466                         if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
 467                         if (!$iterator || !is_array($iterator)) $iterator = $rss;
 468
 469                         if (!is_array($iterator)) {
 470                                 /* db_query($link, "UPDATE ttrss_feeds
 471                                         SET last_error = 'Parse error: can\'t find any articles.'
 472                                                 WHERE id = '$feed'"); */
 473                                 return; // WTF?
 474                         }
 475
 476                         foreach ($iterator as $item) {
 477
 478                                 $entry_guid = $item["id"];
 479
 480                                 if (!$entry_guid) $entry_guid = $item["guid"];
 481                                 if (!$entry_guid) $entry_guid = $item["link"];
 482                                 if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
 483
 484                                 if (!$entry_guid) continue;
 485
 486                                 $entry_timestamp = "";
 487
 488                                 $rss_2_date = $item['pubdate'];
 489                                 $rss_1_date = $item['dc']['date'];
 490                                 $atom_date = $item['issued'];
 491                                 if (!$atom_date) $atom_date = $item['updated'];
 492
 493                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 494                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 495                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 496
 497                                 if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
 498                                         $entry_timestamp = time();
 499                                         $no_orig_date = 'true';
 500                                 } else {
 501                                         $no_orig_date = 'false';
 502                                 }
 503
 504                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 505
 506                                 $entry_title = trim(strip_tags($item["title"]));
 507
 508                                 // strange Magpie workaround
 509                                 $entry_link = $item["link_"];
 510                                 if (!$entry_link) $entry_link = $item["link"];
 511
 512                                 if (!$entry_title) continue;
 513 #                                       if (!$entry_link) continue;
 514
 515                                 $entry_link = strip_tags($entry_link);
 516
 517                                 $entry_content = $item["content:escaped"];
 518
 519                                 if (!$entry_content) $entry_content = $item["content:encoded"];
 520                                 if (!$entry_content) $entry_content = $item["content"];
 521                                 if (!$entry_content) $entry_content = $item["atom_content"];
 522                                 if (!$entry_content) $entry_content = $item["summary"];
 523                                 if (!$entry_content) $entry_content = $item["description"];
 524
 525 //                              if (!$entry_content) continue;
 526
 527                                 // WTF
 528                                 if (is_array($entry_content)) {
 529                                         $entry_content = $entry_content["encoded"];
 530                                         if (!$entry_content) $entry_content = $entry_content["escaped"];
 531                                 }
 532
 533 //                              print_r($item);
 534 //                              print_r(htmlspecialchars($entry_content));
 535 //                              print "<br>";
 536
 537                                 $entry_content_unescaped = $entry_content;
 538                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 539
 540                                 $entry_comments = strip_tags($item["comments"]);
 541
 542                                 $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
 543
 544                                 if ($item['author']) {
 545
 546                                         if (is_array($item['author'])) {
 547
 548                                                 if (!$entry_author) {
 549                                                         $entry_author = db_escape_string(strip_tags($item['author']['name']));
 550                                                 }
 551
 552                                                 if (!$entry_author) {
 553                                                         $entry_author = db_escape_string(strip_tags($item['author']['email']));
 554                                                 }
 555                                         }
 556
 557                                         if (!$entry_author) {
 558                                                 $entry_author = db_escape_string(strip_tags($item['author']));
 559                                         }
 560                                 }
 561
 562                                 if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
 563
 564                                 $entry_guid = db_escape_string(strip_tags($entry_guid));
 565
 566                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 567                                         WHERE guid = '$entry_guid'");
 568
 569                                 $entry_content = db_escape_string($entry_content);
 570                                 $entry_title = db_escape_string($entry_title);
 571                                 $entry_link = db_escape_string($entry_link);
 572                                 $entry_comments = db_escape_string($entry_comments);
 573
 574                                 $num_comments = db_escape_string($item["slash"]["comments"]);
 575
 576                                 if (!$num_comments) $num_comments = 0;
 577
 578 /*                              $dc_subject = $item['dc']['subject'];
 579
 580                                 $subject_tags = false;
 581
 582                                 if (is_array($dc_subject)) {
 583                                         $subject_tags = $dc_subject;
 584                                 } else if ($dc_subject) {
 585                                         $subject_tags = array($dc_subject);
 586                                 } */
 587
 588                                 # sanitize content
 589
 590                                 $entry_content = sanitize_rss($entry_content);
 591
 592                                 db_query($link, "BEGIN");
 593
 594                                 if (db_num_rows($result) == 0) {
 595
 596                                         // base post entry does not exist, create it
 597
 598                                         $result = db_query($link,
 599                                                 "INSERT INTO ttrss_entries
 600                                                         (title,
 601                                                         guid,
 602                                                         link,
 603                                                         updated,
 604                                                         content,
 605                                                         content_hash,
 606                                                         no_orig_date,
 607                                                         date_entered,
 608                                                         comments,
 609                                                         num_comments,
 610                                                         author)
 611                                                 VALUES
 612                                                         ('$entry_title',
 613                                                         '$entry_guid',
 614                                                         '$entry_link',
 615                                                         '$entry_timestamp_fmt',
 616                                                         '$entry_content',
 617                                                         '$content_hash',
 618                                                         $no_orig_date,
 619                                                         NOW(),
 620                                                         '$entry_comments',
 621                                                         '$num_comments',
 622                                                         '$entry_author')");
 623                                 } else {
 624                                         // we keep encountering the entry in feeds, so we need to
 625                                         // update date_entered column so that we don't get horrible
 626                                         // dupes when the entry gets purged and reinserted again e.g.
 627                                         // in the case of SLOW SLOW OMG SLOW updating feeds
 628
 629                                         $base_entry_id = db_fetch_result($result, 0, "id");
 630
 631                                         db_query($link, "UPDATE ttrss_entries SET date_entered = NOW()
 632                                                 WHERE id = '$base_entry_id'");
 633                                 }
 634
 635                                 // now it should exist, if not - bad luck then
 636
 637                                 $result = db_query($link, "SELECT
 638                                                 id,content_hash,no_orig_date,title,
 639                                                 substring(date_entered,1,19) as date_entered,
 640                                                 substring(updated,1,19) as updated,
 641                                                 num_comments
 642                                         FROM
 643                                                 ttrss_entries
 644                                         WHERE guid = '$entry_guid'");
 645
 646                                 if (db_num_rows($result) == 1) {
 647
 648                                         // this will be used below in update handler
 649                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 650                                         $orig_title = db_fetch_result($result, 0, "title");
 651                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
 652                                         $orig_date_entered = strtotime(db_fetch_result($result,
 653                                                 0, "date_entered"));
 654
 655                                         $ref_id = db_fetch_result($result, 0, "id");
 656
 657                                         // check for user post link to main table
 658
 659                                         // do we allow duplicate posts with same GUID in different feeds?
 660                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
 661                                                 $dupcheck_qpart = "AND feed_id = '$feed'";
 662                                         } else {
 663                                                 $dupcheck_qpart = "";
 664                                         }
 665
 666 //                                      error_reporting(0);
 667
 668                                         $article_filters = get_article_filters($filters, $entry_title,
 669                                                         $entry_content, $entry_link);
 670
 671                                         if (find_article_filter($article_filters, "filter")) {
 672                                                 continue;
 673                                         }
 674
 675 //                                      error_reporting (DEFAULT_ERROR_LEVEL);
 676
 677                                         $result = db_query($link,
 678                                                 "SELECT ref_id FROM ttrss_user_entries WHERE
 679                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
 680                                                         $dupcheck_qpart");
 681
 682                                         // okay it doesn't exist - create user entry
 683                                         if (db_num_rows($result) == 0) {
 684
 685                                                 if (!find_article_filter($article_filters, 'catchup')) {
 686                                                         $unread = 'true';
 687                                                         $last_read_qpart = 'NULL';
 688                                                 } else {
 689                                                         $unread = 'false';
 690                                                         $last_read_qpart = 'NOW()';
 691                                                 }
 692
 693                                                 if (find_article_filter($article_filters, 'mark')) {
 694                                                         $marked = 'true';
 695                                                 } else {
 696                                                         $marked = 'false';
 697                                                 }
 698
 699                                                 $result = db_query($link,
 700                                                         "INSERT INTO ttrss_user_entries
 701                                                                 (ref_id, owner_uid, feed_id, unread, last_read, marked)
 702                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
 703                                                                 $last_read_qpart, $marked)");
 704                                         }
 705
 706                                         $post_needs_update = false;
 707
 708                                         if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE", $owner_uid, false) &&
 709                                                 ($content_hash != $orig_content_hash)) {
 710                                                 $post_needs_update = true;
 711                                         }
 712
 713                                         if ($orig_title != $entry_title) {
 714                                                 $post_needs_update = true;
 715                                         }
 716
 717                                         if ($orig_num_comments != $num_comments) {
 718                                                 $post_needs_update = true;
 719                                         }
 720
 721 //                                      this doesn't seem to be very reliable
 722 //
 723 //                                      if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 724 //                                              $post_needs_update = true;
 725 //                                      }
 726
 727                                         // if post needs update, update it and mark all user entries
 728                                         // linking to this post as updated
 729                                         if ($post_needs_update) {
 730
 731 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
 732
 733                                                 db_query($link, "UPDATE ttrss_entries
 734                                                         SET title = '$entry_title', content = '$entry_content',
 735                                                                 num_comments = '$num_comments'
 736                                                         WHERE id = '$ref_id'");
 737
 738                                                 if (get_pref($link, "MARK_UNREAD_ON_UPDATE", $owner_uid, false)) {
 739                                                         db_query($link, "UPDATE ttrss_user_entries
 740                                                                 SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
 741                                                 } else {
 742                                                         db_query($link, "UPDATE ttrss_user_entries
 743                                                                 SET last_read = null WHERE ref_id = '$ref_id' AND unread = false");
 744                                                 }
 745
 746                                         }
 747                                 }
 748
 749                                 db_query($link, "COMMIT");
 750
 751                                 /* taaaags */
 752                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 753
 754                                 $entry_tags = null;
 755
 756                                 preg_match_all("/<a.*?href=.http:\/\/.*?technorati.com\/tag\/([^\"\'>]+)/i",
 757                                         $entry_content_unescaped, $entry_tags);
 758
 759 //                              print "<br>$entry_title : $entry_content_unescaped<br>";
 760 //                              print_r($entry_tags);
 761 //                              print "<br>";
 762
 763                                 $entry_tags = $entry_tags[1];
 764
 765                                 # check for manual tags
 766
 767                                 $tag_filter = find_article_filter($article_filters, "tag");
 768
 769                                 if ($tag_filter) {
 770
 771                                         $manual_tags = trim_array(split(",", $tag_filter[1]));
 772
 773                                         foreach ($manual_tags as $tag) {
 774                                                 if (tag_is_valid($tag)) {
 775                                                         array_push($entry_tags, $tag);
 776                                                 }
 777                                         }
 778                                 }
 779
 780 /*                              if ($subject_tags) {
 781                                         foreach ($subject_tags as $tag) {
 782                                                 if (tag_is_valid($tag)) {
 783                                                         array_push($entry_tags, $tag);
 784                                                 }
 785                                         }
 786                                 } */
 787
 788                                 if (count($entry_tags) > 0) {
 789
 790                                         db_query($link, "BEGIN");
 791
 792                                         $result = db_query($link, "SELECT id,int_id
 793                                                 FROM ttrss_entries,ttrss_user_entries
 794                                                 WHERE guid = '$entry_guid'
 795                                                 AND feed_id = '$feed' AND ref_id = id
 796                                                 AND owner_uid = '$owner_uid'");
 797
 798                                         if (db_num_rows($result) == 1) {
 799
 800                                                 $entry_id = db_fetch_result($result, 0, "id");
 801                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
 802
 803                                                 foreach ($entry_tags as $tag) {
 804                                                         $tag = db_escape_string(mb_strtolower(strip_tags($tag)));
 805
 806                                                         $tag = str_replace("+", " ", $tag);
 807                                                         $tag = str_replace("technorati tag: ", "", $tag);
 808
 809                                                         if (!tag_is_valid($tag)) continue;
 810
 811                                                         $result = db_query($link, "SELECT id FROM ttrss_tags
 812                                                                 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
 813                                                                 owner_uid = '$owner_uid' LIMIT 1");
 814
 815         //                                              print db_fetch_result($result, 0, "id");
 816
 817                                                         if ($result && db_num_rows($result) == 0) {
 818
 819         //                                                      print "tagging $entry_id as $tag<br>";
 820
 821                                                                 db_query($link, "INSERT INTO ttrss_tags
 822                                                                         (owner_uid,tag_name,post_int_id)
 823                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
 824                                                         }
 825                                                 }
 826                                         }
 827                                         db_query($link, "COMMIT");
 828                                 }
 829                         }
 830
 831                         db_query($link, "UPDATE ttrss_feeds
 832                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 833
 834 //                      db_query($link, "COMMIT");
 835
 836                 } else {
 837                         $error_msg = db_escape_string(magpie_error());
 838                         db_query($link,
 839                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
 840                                         last_updated = NOW() WHERE id = '$feed'");
 841                 }
 842
 843         }
 844
 845         function print_select($id, $default, $values, $attributes = "") {
 846                 print "<select name=\"$id\" id=\"$id\" $attributes>";
 847                 foreach ($values as $v) {
 848                         if ($v == $default)
 849                                 $sel = " selected";
 850                          else
 851                                 $sel = "";
 852
 853                         print "<option$sel>$v</option>";
 854                 }
 855                 print "</select>";
 856         }
 857
 858         function print_select_hash($id, $default, $values, $attributes = "") {
 859                 print "<select name=\"$id\" id='$id' $attributes>";
 860                 foreach (array_keys($values) as $v) {
 861                         if ($v == $default)
 862                                 $sel = "selected";
 863                          else
 864                                 $sel = "";
 865
 866                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
 867                 }
 868
 869                 print "</select>";
 870         }
 871
 872         function get_article_filters($filters, $title, $content, $link) {
 873                 $matches = array();
 874
 875                 if ($filters["title"]) {
 876                         foreach ($filters["title"] as $filter) {
 877                                 $reg_exp = $filter["reg_exp"];
 878                                 $inverse = $filter["inverse"];
 879                                 if ((!$inverse && preg_match("/$reg_exp/i", $title)) ||
 880                                                 ($inverse && !preg_match("/$reg_exp/i", $title))) {
 881
 882                                         array_push($matches, array($filter["action"], $filter["action_param"]));
 883                                 }
 884                         }
 885                 }
 886
 887                 if ($filters["content"]) {
 888                         foreach ($filters["content"] as $filter) {
 889                                 $reg_exp = $filter["reg_exp"];
 890                                 $inverse = $filter["inverse"];
 891
 892                                 if ((!$inverse && preg_match("/$reg_exp/i", $content)) ||
 893                                                 ($inverse && !preg_match("/$reg_exp/i", $content))) {
 894
 895                                         array_push($matches, array($filter["action"], $filter["action_param"]));
 896                                 }
 897                         }
 898                 }
 899
 900                 if ($filters["both"]) {
 901                         foreach ($filters["both"] as $filter) {
 902                                 $reg_exp = $filter["reg_exp"];
 903                                 $inverse = $filter["inverse"];
 904
 905                                 if ($inverse) {
 906                                         if (!preg_match("/$reg_exp/i", $title) || !preg_match("/$reg_exp/i", $content)) {
 907                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
 908                                         }
 909                                 } else {
 910                                         if (preg_match("/$reg_exp/i", $title) || preg_match("/$reg_exp/i", $content)) {
 911                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
 912                                         }
 913                                 }
 914                         }
 915                 }
 916
 917                 if ($filters["link"]) {
 918                         $reg_exp = $filter["reg_exp"];
 919                         foreach ($filters["link"] as $filter) {
 920                                 $reg_exp = $filter["reg_exp"];
 921                                 $inverse = $filter["inverse"];
 922
 923                                 if ((!$inverse && preg_match("/$reg_exp/i", $link)) ||
 924                                                 ($inverse && !preg_match("/$reg_exp/i", $link))) {
 925
 926                                         array_push($matches, array($filter["action"], $filter["action_param"]));
 927                                 }
 928                         }
 929                 }
 930
 931                 return $matches;
 932         }
 933
 934         function find_article_filter($filters, $filter_name) {
 935                 foreach ($filters as $f) {
 936                         if ($f[0] == $filter_name) {
 937                                 return $f;
 938                         };
 939                 }
 940                 return false;
 941         }
 942
 943         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link,
 944                 $rtl_content = false, $last_updated = false, $last_error = false) {
 945
 946                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 947                                 $feed_icon = "<img id=\"FIMG-$feed_id\" src=\"$icon_file\">";
 948                 } else {
 949                         $feed_icon = "<img id=\"FIMG-$feed_id\" src=\"images/blank_icon.gif\">";
 950                 }
 951
 952                 if ($rtl_content) {
 953                         $rtl_tag = "dir=\"rtl\"";
 954                 } else {
 955                         $rtl_tag = "dir=\"ltr\"";
 956                 }
 957
 958                 $error_notify_msg = "";
 959
 960                 if ($last_error) {
 961                         $link_title = "Error: $last_error ($last_updated)";
 962                         $error_notify_msg = "(Error)";
 963                 } else if ($last_updated) {
 964                         $link_title = "Updated: $last_updated";
 965                 }
 966
 967                 $feed = "<a title=\"$link_title\" id=\"FEEDL-$feed_id\"
 968                         href=\"javascript:viewfeed('$feed_id', '', false, '', false, 0);\">$feed_title</a>";
 969
 970                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 971                 if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 972                         print "$feed_icon";
 973                 }
 974
 975                 print "<span $rtl_tag id=\"FEEDN-$feed_id\">$feed</span>";
 976
 977                 if ($unread != 0) {
 978                         $fctr_class = "";
 979                 } else {
 980                         $fctr_class = "class=\"invisible\"";
 981                 }
 982
 983                 print " <span $rtl_tag $fctr_class id=\"FEEDCTR-$feed_id\">
 984                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 985
 986                 if (get_pref($link, "EXTENDED_FEEDLIST")) {
 987                         print "<div class=\"feedExtInfo\">
 988                                 <span id=\"FLUPD-$feed_id\">$last_updated $error_notify_msg</span></div>";
 989                 }
 990
 991                 print "</li>";
 992
 993         }
 994
 995         function getmicrotime() {
 996                 list($usec, $sec) = explode(" ",microtime());
 997                 return ((float)$usec + (float)$sec);
 998         }
 999
1000         function print_radio($id, $default, $values, $attributes = "") {
1001                 foreach ($values as $v) {
1002
1003                         if ($v == $default)
1004                                 $sel = "checked";
1005                          else
1006                                 $sel = "";
1007
1008                         if ($v == "Yes") {
1009                                 $sel .= " value=\"1\"";
1010                         } else {
1011                                 $sel .= " value=\"0\"";
1012                         }
1013
1014                         print "<input class=\"noborder\"
1015                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
1016
1017                 }
1018         }
1019
1020         function initialize_user_prefs($link, $uid) {
1021
1022                 $uid = db_escape_string($uid);
1023
1024                 db_query($link, "BEGIN");
1025
1026                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
1027
1028                 $u_result = db_query($link, "SELECT pref_name
1029                         FROM ttrss_user_prefs WHERE owner_uid = '$uid'");
1030
1031                 $active_prefs = array();
1032
1033                 while ($line = db_fetch_assoc($u_result)) {
1034                         array_push($active_prefs, $line["pref_name"]);
1035                 }
1036
1037                 while ($line = db_fetch_assoc($result)) {
1038                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
1039 //                              print "adding " . $line["pref_name"] . "<br>";
1040
1041                                 db_query($link, "INSERT INTO ttrss_user_prefs
1042                                         (owner_uid,pref_name,value) VALUES
1043                                         ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
1044
1045                         }
1046                 }
1047
1048                 db_query($link, "COMMIT");
1049
1050         }
1051
1052         function lookup_user_id($link, $user) {
1053
1054                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE
1055                         login = '$login'");
1056
1057                 if (db_num_rows($result) == 1) {
1058                         return db_fetch_result($result, 0, "id");
1059                 } else {
1060                         return false;
1061                 }
1062         }
1063
1064         function http_authenticate_user($link) {
1065
1066                 if (!$_SERVER["PHP_AUTH_USER"]) {
1067
1068                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1069                         header('HTTP/1.0 401 Unauthorized');
1070                         exit;
1071
1072                 } else {
1073                         $auth_result = authenticate_user($link,
1074                                 $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
1075
1076                         if (!$auth_result) {
1077                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1078                                 header('HTTP/1.0 401 Unauthorized');
1079                                 exit;
1080                         }
1081                 }
1082
1083                 return true;
1084         }
1085
1086         function authenticate_user($link, $login, $password, $force_auth = false) {
1087
1088                 if (!SINGLE_USER_MODE) {
1089
1090                         $pwd_hash = 'SHA1:' . sha1($password);
1091
1092                         if ($force_auth && defined('_DEBUG_USER_SWITCH')) {
1093                                 $query = "SELECT id,login,access_level
1094                     FROM ttrss_users WHERE
1095                          login = '$login'";
1096                         } else {
1097                                 $query = "SELECT id,login,access_level
1098                     FROM ttrss_users WHERE
1099                          login = '$login' AND pwd_hash = '$pwd_hash'";
1100                         }
1101
1102                         $result = db_query($link, $query);
1103
1104                         if (db_num_rows($result) == 1) {
1105                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
1106                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
1107                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
1108
1109                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
1110                                         $_SESSION["uid"]);
1111
1112                                 $user_theme = get_user_theme_path($link);
1113
1114                                 $_SESSION["theme"] = $user_theme;
1115                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1116
1117                                 initialize_user_prefs($link, $_SESSION["uid"]);
1118
1119                                 return true;
1120                         }
1121
1122                         return false;
1123
1124                 } else {
1125
1126                         $_SESSION["uid"] = 1;
1127                         $_SESSION["name"] = "admin";
1128
1129                         $user_theme = get_user_theme_path($link);
1130
1131                         $_SESSION["theme"] = $user_theme;
1132                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1133
1134                         initialize_user_prefs($link, $_SESSION["uid"]);
1135
1136                         return true;
1137                 }
1138         }
1139
1140         function make_password($length = 8) {
1141
1142                 $password = "";
1143                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
1144
1145         $i = 0;
1146
1147                 while ($i < $length) {
1148                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
1149
1150                         if (!strstr($password, $char)) {
1151                                 $password .= $char;
1152                                 $i++;
1153                         }
1154                 }
1155                 return $password;
1156         }
1157
1158         // this is called after user is created to initialize default feeds, labels
1159         // or whatever else
1160
1161         // user preferences are checked on every login, not here
1162
1163         function initialize_user($link, $uid) {
1164
1165                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
1166                         values ('$uid','unread = true', 'Unread articles')");
1167
1168                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
1169                         values ('$uid','last_read is null and unread = false', 'Updated articles')");
1170
1171                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1172                         values ('$uid', 'Tiny Tiny RSS: New Releases',
1173                         'http://tt-rss.spb.ru/releases.rss')");
1174
1175                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1176                         values ('$uid', 'Tiny Tiny RSS: Forum',
1177                         'http://tt-rss.spb.ru/forum/rss.php')");
1178         }
1179
1180         function logout_user() {
1181                 session_destroy();
1182                 if (isset($_COOKIE[session_name()])) {
1183                    setcookie(session_name(), '', time()-42000, '/');
1184                 }
1185         }
1186
1187         function get_script_urlpath() {
1188                 return preg_replace('/\/[^\/]*$/', "", $_SERVER["REQUEST_URI"]);
1189         }
1190
1191         function validate_session($link) {
1192                 if (SESSION_CHECK_ADDRESS && $_SESSION["uid"]) {
1193                         if ($_SESSION["ip_address"]) {
1194                                 if ($_SESSION["ip_address"] != $_SERVER["REMOTE_ADDR"]) {
1195                                         $_SESSION["login_error_msg"] = "Session failed to validate (incorrect IP)";
1196                                         return false;
1197                                 }
1198                         }
1199                 }
1200
1201 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
1202
1203                         //print_r($_SESSION);
1204
1205                         if (time() > $_SESSION["cookie_lifetime"]) {
1206                                 return false;
1207                         }
1208                 } */
1209
1210                 return true;
1211         }
1212
1213         function login_sequence($link, $mobile = false) {
1214                 if (!SINGLE_USER_MODE) {
1215
1216                         if (defined('_DEBUG_USER_SWITCH') && $_SESSION["uid"]) {
1217                                 $swu = db_escape_string($_REQUEST["swu"]);
1218                                 if ($swu) {
1219                                         $_SESSION["prefs_cache"] = false;
1220                                         return authenticate_user($link, $swu, null, true);
1221                                 }
1222                         }
1223
1224                         $login_action = $_POST["login_action"];
1225
1226                         # try to authenticate user if called from login form
1227                         if ($login_action == "do_login") {
1228                                 $login = $_POST["login"];
1229                                 $password = $_POST["password"];
1230                                 $remember_me = $_POST["remember_me"];
1231
1232                                 if (authenticate_user($link, $login, $password)) {
1233                                         $_POST["password"] = "";
1234
1235                                         header("Location: " . $_SERVER["REQUEST_URI"]);
1236                                         exit;
1237
1238                                         return;
1239                                 } else {
1240                                         $_SESSION["login_error_msg"] = "Incorrect username or password";
1241                                 }
1242                         }
1243
1244 //                      print session_id();
1245 //                      print_r($_SESSION);
1246
1247                         if (!$_SESSION["uid"] || !validate_session($link)) {
1248                                 render_login_form($link, $mobile);
1249                                 exit;
1250                         }
1251
1252
1253                 } else {
1254                         return authenticate_user($link, "admin", null);
1255                 }
1256         }
1257
1258         function truncate_string($str, $max_len) {
1259                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
1260                         return mb_substr($str, 0, $max_len, "utf-8") . "...";
1261                 } else {
1262                         return $str;
1263                 }
1264         }
1265
1266         function get_user_theme_path($link) {
1267                 $result = db_query($link, "SELECT theme_path
1268                         FROM
1269                                 ttrss_themes,ttrss_users
1270                         WHERE ttrss_themes.id = theme_id AND ttrss_users.id = " . $_SESSION["uid"]);
1271                 if (db_num_rows($result) != 0) {
1272                         return db_fetch_result($result, 0, "theme_path");
1273                 } else {
1274                         return null;
1275                 }
1276         }
1277
1278         function smart_date_time($timestamp) {
1279                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
1280                         return date("G:i", $timestamp);
1281                 } else if (date("Y", $timestamp) == date("Y")) {
1282                         return date("M d, G:i", $timestamp);
1283                 } else {
1284                         return date("Y/m/d G:i", $timestamp);
1285                 }
1286         }
1287
1288         function smart_date($timestamp) {
1289                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
1290                         return "Today";
1291                 } else if (date("Y", $timestamp) == date("Y")) {
1292                         return date("D m", $timestamp);
1293                 } else {
1294                         return date("Y/m/d", $timestamp);
1295                 }
1296         }
1297
1298         function sql_bool_to_string($s) {
1299                 if ($s == "t" || $s == "1") {
1300                         return "true";
1301                 } else {
1302                         return "false";
1303                 }
1304         }
1305
1306         function sql_bool_to_bool($s) {
1307                 if ($s == "t" || $s == "1") {
1308                         return true;
1309                 } else {
1310                         return false;
1311                 }
1312         }
1313
1314
1315         function toggleEvenOdd($a) {
1316                 if ($a == "even")
1317                         return "odd";
1318                 else
1319                         return "even";
1320         }
1321
1322         function sanity_check($link) {
1323
1324                 error_reporting(0);
1325
1326                 $error_code = 0;
1327                 $result = db_query($link, "SELECT schema_version FROM ttrss_version");
1328                 $schema_version = db_fetch_result($result, 0, "schema_version");
1329
1330                 if ($schema_version != SCHEMA_VERSION) {
1331                         $error_code = 5;
1332                 }
1333
1334                 if (DB_TYPE == "mysql") {
1335                         $result = db_query($link, "SELECT true", false);
1336                         if (db_num_rows($result) != 1) {
1337                                 $error_code = 10;
1338                         }
1339                 }
1340
1341                 error_reporting (DEFAULT_ERROR_LEVEL);
1342
1343                 if ($error_code != 0) {
1344                         print_error_xml($error_code);
1345                         return false;
1346                 } else {
1347                         return true;
1348                 }
1349         }
1350
1351         function file_is_locked($filename) {
1352                 error_reporting(0);
1353                 $fp = fopen($filename, "r");
1354                 error_reporting(DEFAULT_ERROR_LEVEL);
1355                 if ($fp) {
1356                         if (flock($fp, LOCK_EX | LOCK_NB)) {
1357                                 flock($fp, LOCK_UN);
1358                                 fclose($fp);
1359                                 return false;
1360                         }
1361                         fclose($fp);
1362                         return true;
1363                 }
1364                 return false;
1365         }
1366
1367         function make_lockfile($filename) {
1368                 $fp = fopen($filename, "w");
1369
1370                 if (flock($fp, LOCK_EX | LOCK_NB)) {
1371                         return $fp;
1372                 } else {
1373                         return false;
1374                 }
1375         }
1376
1377         function sql_random_function() {
1378                 if (DB_TYPE == "mysql") {
1379                         return "RAND()";
1380                 } else {
1381                         return "RANDOM()";
1382                 }
1383         }
1384
1385         function catchup_feed($link, $feed, $cat_view) {
1386
1387                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
1388
1389                                 if ($cat_view) {
1390
1391                                         if ($feed > 0) {
1392                                                 $cat_qpart = "cat_id = '$feed'";
1393                                         } else {
1394                                                 $cat_qpart = "cat_id IS NULL";
1395                                         }
1396
1397                                         $tmp_result = db_query($link, "SELECT id
1398                                                 FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = " .
1399                                                 $_SESSION["uid"]);
1400
1401                                         while ($tmp_line = db_fetch_assoc($tmp_result)) {
1402
1403                                                 $tmp_feed = $tmp_line["id"];
1404
1405                                                 db_query($link, "UPDATE ttrss_user_entries
1406                                                         SET unread = false,last_read = NOW()
1407                                                         WHERE feed_id = '$tmp_feed' AND owner_uid = " . $_SESSION["uid"]);
1408                                         }
1409
1410                                 } else if ($feed > 0) {
1411
1412                                         $tmp_result = db_query($link, "SELECT id
1413                                                 FROM ttrss_feeds WHERE parent_feed = '$feed'
1414                                                 ORDER BY cat_id,title");
1415
1416                                         $parent_ids = array();
1417
1418                                         if (db_num_rows($tmp_result) > 0) {
1419                                                 while ($p = db_fetch_assoc($tmp_result)) {
1420                                                         array_push($parent_ids, "feed_id = " . $p["id"]);
1421                                                 }
1422
1423                                                 $children_qpart = implode(" OR ", $parent_ids);
1424
1425                                                 db_query($link, "UPDATE ttrss_user_entries
1426                                                         SET unread = false,last_read = NOW()
1427                                                         WHERE (feed_id = '$feed' OR $children_qpart)
1428                                                         AND owner_uid = " . $_SESSION["uid"]);
1429
1430                                         } else {
1431                                                 db_query($link, "UPDATE ttrss_user_entries
1432                                                         SET unread = false,last_read = NOW()
1433                                                         WHERE feed_id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
1434                                         }
1435
1436                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
1437
1438                                         if ($feed == -1) {
1439                                                 db_query($link, "UPDATE ttrss_user_entries
1440                                                         SET unread = false,last_read = NOW()
1441                                                         WHERE marked = true AND owner_uid = ".$_SESSION["uid"]);
1442                                         }
1443
1444                                 } else if ($feed < -10) { // label
1445
1446                                         // TODO make this more efficient
1447
1448                                         $label_id = -$feed - 11;
1449
1450                                         $tmp_result = db_query($link, "SELECT sql_exp FROM ttrss_labels
1451                                                 WHERE id = '$label_id'");
1452
1453                                         if ($tmp_result) {
1454                                                 $sql_exp = db_fetch_result($tmp_result, 0, "sql_exp");
1455
1456                                                 db_query($link, "BEGIN");
1457
1458                                                 $tmp2_result = db_query($link,
1459                                                         "SELECT
1460                                                                 int_id
1461                                                         FROM
1462                                                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
1463                                                         WHERE
1464                                                                 ref_id = ttrss_entries.id AND
1465                                                                 ttrss_user_entries.feed_id = ttrss_feeds.id AND
1466                                                                 $sql_exp AND
1467                                                                 ttrss_user_entries.owner_uid = " . $_SESSION["uid"]);
1468
1469                                                 while ($tmp_line = db_fetch_assoc($tmp2_result)) {
1470                                                         db_query($link, "UPDATE
1471                                                                 ttrss_user_entries
1472                                                         SET
1473                                                                 unread = false, last_read = NOW()
1474                                                         WHERE
1475                                                                 int_id = " . $tmp_line["int_id"]);
1476                                                 }
1477
1478                                                 db_query($link, "COMMIT");
1479
1480 /*                                              db_query($link, "UPDATE ttrss_user_entries,ttrss_entries
1481                                                         SET unread = false,last_read = NOW()
1482                                                         WHERE $sql_exp
1483                                                         AND ref_id = id
1484                                                         AND owner_uid = ".$_SESSION["uid"]); */
1485                                         }
1486                                 }
1487                         } else { // tag
1488                                 db_query($link, "BEGIN");
1489
1490                                 $tag_name = db_escape_string($feed);
1491
1492                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
1493                                         WHERE tag_name = '$tag_name' AND owner_uid = " . $_SESSION["uid"]);
1494
1495                                 while ($line = db_fetch_assoc($result)) {
1496                                         db_query($link, "UPDATE ttrss_user_entries SET
1497                                                 unread = false, last_read = NOW()
1498                                                 WHERE int_id = " . $line["post_int_id"]);
1499                                 }
1500                                 db_query($link, "COMMIT");
1501                         }
1502         }
1503
1504         function update_generic_feed($link, $feed, $cat_view) {
1505                         if ($cat_view) {
1506
1507                                 if ($feed > 0) {
1508                                         $cat_qpart = "cat_id = '$feed'";
1509                                 } else {
1510                                         $cat_qpart = "cat_id IS NULL";
1511                                 }
1512
1513                                 $tmp_result = db_query($link, "SELECT feed_url FROM ttrss_feeds
1514                                         WHERE $cat_qpart AND owner_uid = " . $_SESSION["uid"]);
1515
1516                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
1517                                         $feed_url = $tmp_line["feed_url"];
1518                                         update_rss_feed($link, $feed_url, $feed, ENABLE_UPDATE_DAEMON);
1519                                 }
1520
1521                         } else {
1522                                 $tmp_result = db_query($link, "SELECT feed_url FROM ttrss_feeds
1523                                         WHERE id = '$feed'");
1524                                 $feed_url = db_fetch_result($tmp_result, 0, "feed_url");
1525                                 update_rss_feed($link, $feed_url, $feed, ENABLE_UPDATE_DAEMON);
1526                         }
1527         }
1528
1529         function getAllCounters($link, $omode = "tflc") {
1530 /*              getLabelCounters($link);
1531                 getFeedCounters($link);
1532                 getTagCounters($link);
1533                 getGlobalCounters($link);
1534                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
1535                         getCategoryCounters($link);
1536                 } */
1537
1538                 if (!$omode) $omode = "tflc";
1539
1540                 getGlobalCounters($link);
1541
1542                 if (strchr($omode, "l")) getLabelCounters($link);
1543                 if (strchr($omode, "f")) getFeedCounters($link);
1544                 if (strchr($omode, "t")) getTagCounters($link);
1545                 if (strchr($omode, "c")) {
1546                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
1547                                 getCategoryCounters($link);
1548                         }
1549                 }
1550         }
1551
1552         function getCategoryCounters($link) {
1553                 $result = db_query($link, "SELECT cat_id,SUM((SELECT COUNT(int_id)
1554                                 FROM ttrss_user_entries WHERE feed_id = ttrss_feeds.id
1555                                         AND unread = true)) AS unread FROM ttrss_feeds
1556                         WHERE
1557                                 hidden = false AND owner_uid = ".$_SESSION["uid"]." GROUP BY cat_id");
1558
1559                 while ($line = db_fetch_assoc($result)) {
1560                         $line["cat_id"] = sprintf("%d", $line["cat_id"]);
1561                         print "<counter type=\"category\" id=\"".$line["cat_id"]."\" counter=\"".
1562                                 $line["unread"]."\"/>";
1563                 }
1564         }
1565
1566         function getCategoryUnread($link, $cat) {
1567
1568                 if ($cat != 0) {
1569                         $cat_query = "cat_id = '$cat'";
1570                 } else {
1571                         $cat_query = "cat_id IS NULL";
1572                 }
1573
1574                 $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
1575                                 AND hidden = false
1576                                 AND owner_uid = " . $_SESSION["uid"]);
1577
1578                 $cat_feeds = array();
1579                 while ($line = db_fetch_assoc($result)) {
1580                         array_push($cat_feeds, "feed_id = " . $line["id"]);
1581                 }
1582
1583                 if (count($cat_feeds) == 0) return 0;
1584
1585                 $match_part = implode(" OR ", $cat_feeds);
1586
1587                 $result = db_query($link, "SELECT COUNT(int_id) AS unread
1588                         FROM ttrss_user_entries
1589                         WHERE   unread = true AND ($match_part) AND owner_uid = " . $_SESSION["uid"]);
1590
1591                 $unread = 0;
1592
1593                 # this needs to be rewritten
1594                 while ($line = db_fetch_assoc($result)) {
1595                         $unread += $line["unread"];
1596                 }
1597
1598                 return $unread;
1599
1600         }
1601
1602         function getFeedUnread($link, $feed, $is_cat = false) {
1603                 $n_feed = sprintf("%d", $feed);
1604
1605                 if ($is_cat) {
1606                         return getCategoryUnread($link, $n_feed);
1607                 } else if ($n_feed == -1) {
1608                         $match_part = "marked = true";
1609                 } else if ($n_feed > 0) {
1610
1611                         $result = db_query($link, "SELECT id FROM ttrss_feeds
1612                                         WHERE parent_feed = '$n_feed'
1613                                         AND hidden = false
1614                                         AND owner_uid = " . $_SESSION["uid"]);
1615
1616                         if (db_num_rows($result) > 0) {
1617
1618                                 $linked_feeds = array();
1619                                 while ($line = db_fetch_assoc($result)) {
1620                                         array_push($linked_feeds, "feed_id = " . $line["id"]);
1621                                 }
1622
1623                                 array_push($linked_feeds, "feed_id = $n_feed");
1624
1625                                 $match_part = implode(" OR ", $linked_feeds);
1626
1627                                 $result = db_query($link, "SELECT COUNT(int_id) AS unread
1628                                         FROM ttrss_user_entries
1629                                         WHERE   unread = true AND ($match_part)
1630                                         AND owner_uid = " . $_SESSION["uid"]);
1631
1632                                 $unread = 0;
1633
1634                                 # this needs to be rewritten
1635                                 while ($line = db_fetch_assoc($result)) {
1636                                         $unread += $line["unread"];
1637                                 }
1638
1639                                 return $unread;
1640
1641                         } else {
1642                                 $match_part = "feed_id = '$n_feed'";
1643                         }
1644                 } else if ($feed < -10) {
1645
1646                         $label_id = -$feed - 11;
1647
1648                         $result = db_query($link, "SELECT sql_exp FROM ttrss_labels WHERE
1649                                 id = '$label_id' AND owner_uid = " . $_SESSION["uid"]);
1650
1651                         $match_part = db_fetch_result($result, 0, "sql_exp");
1652                 }
1653
1654                 if ($match_part) {
1655
1656                         $result = db_query($link, "SELECT count(int_id) AS unread
1657                                 FROM ttrss_user_entries,ttrss_feeds,ttrss_entries WHERE
1658                                 ttrss_user_entries.feed_id = ttrss_feeds.id AND
1659                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
1660                                 ttrss_feeds.hidden = false AND
1661                                 unread = true AND ($match_part) AND ttrss_user_entries.owner_uid = " . $_SESSION["uid"]);
1662
1663                 } else {
1664
1665                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
1666                                 FROM ttrss_tags,ttrss_user_entries
1667                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND unread = true AND
1668                                         ttrss_tags.owner_uid = " . $_SESSION["uid"]);
1669                 }
1670
1671                 $unread = db_fetch_result($result, 0, "unread");
1672
1673                 return $unread;
1674         }
1675
1676         /* FIXME this needs reworking */
1677
1678         function getGlobalUnread($link, $user_id = false) {
1679
1680                 if (!$user_id) {
1681                         $user_id = $_SESSION["uid"];
1682                 }
1683
1684                 $result = db_query($link, "SELECT count(ttrss_entries.id) as c_id FROM ttrss_entries,ttrss_user_entries,ttrss_feeds
1685                         WHERE unread = true AND
1686                         ttrss_user_entries.feed_id = ttrss_feeds.id AND
1687                         ttrss_user_entries.ref_id = ttrss_entries.id AND
1688                         hidden = false AND
1689                         ttrss_user_entries.owner_uid = '$user_id'");
1690                 $c_id = db_fetch_result($result, 0, "c_id");
1691                 return $c_id;
1692         }
1693
1694         function getGlobalCounters($link, $global_unread = -1) {
1695                 if ($global_unread == -1) {
1696                         $global_unread = getGlobalUnread($link);
1697                 }
1698                 print "<counter type=\"global\" id='global-unread'
1699                         counter='$global_unread'/>";
1700
1701                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
1702                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
1703
1704                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
1705
1706                 print "<counter type=\"global\" id='subscribed-feeds'
1707                         counter='$subscribed_feeds'/>";
1708
1709         }
1710
1711         function getTagCounters($link, $smart_mode = SMART_RPC_COUNTERS) {
1712
1713                 if ($smart_mode) {
1714                         if (!$_SESSION["tctr_last_value"]) {
1715                                 $_SESSION["tctr_last_value"] = array();
1716                         }
1717                 }
1718
1719                 $old_counters = $_SESSION["tctr_last_value"];
1720
1721                 $tctrs_modified = false;
1722
1723 /*              $result = db_query($link, "SELECT tag_name,count(ttrss_entries.id) AS count
1724                         FROM ttrss_tags,ttrss_entries,ttrss_user_entries WHERE
1725                         ttrss_user_entries.ref_id = ttrss_entries.id AND
1726                         ttrss_tags.owner_uid = ".$_SESSION["uid"]." AND
1727                         post_int_id = ttrss_user_entries.int_id AND unread = true GROUP BY tag_name
1728                 UNION
1729                         select tag_name,0 as count FROM ttrss_tags
1730                         WHERE ttrss_tags.owner_uid = ".$_SESSION["uid"]); */
1731
1732                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
1733                         FROM ttrss_user_entries WHERE int_id = post_int_id
1734                                 AND unread = true)) AS count FROM ttrss_tags
1735                         WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name ORDER BY tag_name");
1736
1737                 $tags = array();
1738
1739                 while ($line = db_fetch_assoc($result)) {
1740                         $tags[$line["tag_name"]] += $line["count"];
1741                 }
1742
1743                 foreach (array_keys($tags) as $tag) {
1744                         $unread = $tags[$tag];
1745
1746                         $tag = htmlspecialchars($tag);
1747
1748                         if (!$smart_mode || $old_counters[$tag] != $unread) {
1749                                 $old_counters[$tag] = $unread;
1750                                 $tctrs_modified = true;
1751                                 print "<counter type=\"tag\" id=\"$tag\" counter=\"$unread\"/>";
1752                         }
1753
1754                 }
1755
1756                 if ($smart_mode && $tctrs_modified) {
1757                         $_SESSION["tctr_last_value"] = $old_counters;
1758                 }
1759
1760         }
1761
1762         function getLabelCounters($link, $smart_mode = SMART_RPC_COUNTERS, $ret_mode = false) {
1763
1764                 if ($smart_mode) {
1765                         if (!$_SESSION["lctr_last_value"]) {
1766                                 $_SESSION["lctr_last_value"] = array();
1767                         }
1768                 }
1769
1770                 $ret_arr = array();
1771
1772                 $old_counters = $_SESSION["lctr_last_value"];
1773                 $lctrs_modified = false;
1774
1775                 $result = db_query($link, "SELECT count(ttrss_entries.id) as count FROM ttrss_entries,ttrss_user_entries,ttrss_feeds
1776                         WHERE marked = true AND ttrss_user_entries.ref_id = ttrss_entries.id AND
1777                         ttrss_user_entries.feed_id = ttrss_feeds.id AND
1778                         unread = true AND ttrss_user_entries.owner_uid = ".$_SESSION["uid"]);
1779
1780                 $count = db_fetch_result($result, 0, "count");
1781
1782                 if (!$ret_mode) {
1783                         print "<counter type=\"label\" id=\"-1\" counter=\"$count\"/>";
1784                 } else {
1785                         $ret_arr["-1"]["counter"] = $count;
1786                         $ret_arr["-1"]["description"] = "Starred";
1787                 }
1788
1789                 $result = db_query($link, "SELECT owner_uid,id,sql_exp,description FROM
1790                         ttrss_labels WHERE owner_uid = ".$_SESSION["uid"]." ORDER by description");
1791
1792                 while ($line = db_fetch_assoc($result)) {
1793
1794                         $id = -$line["id"] - 11;
1795
1796                         $label_name = $line["description"];
1797
1798                         error_reporting (0);
1799
1800                         $tmp_result = db_query($link, "SELECT count(ttrss_entries.id) as count FROM ttrss_user_entries,ttrss_entries,ttrss_feeds
1801                                 WHERE (" . $line["sql_exp"] . ") AND unread = true AND
1802                                 ttrss_feeds.hidden = false AND
1803                                 ttrss_user_entries.feed_id = ttrss_feeds.id AND
1804                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
1805                                 ttrss_user_entries.owner_uid = ".$_SESSION["uid"]);
1806
1807                         $count = db_fetch_result($tmp_result, 0, "count");
1808
1809                         if (!$smart_mode || $old_counters[$id] != $count) {
1810                                 $old_counters[$id] = $count;
1811                                 $lctrs_modified = true;
1812                                 if (!$ret_mode) {
1813                                         print "<counter type=\"label\" id=\"$id\" counter=\"$count\"/>";
1814                                 } else {
1815                                         $ret_arr[$id]["counter"] = $count;
1816                                         $ret_arr[$id]["description"] = $label_name;
1817                                 }
1818                         }
1819
1820                         error_reporting (DEFAULT_ERROR_LEVEL);
1821                 }
1822
1823                 if ($smart_mode && $lctrs_modified) {
1824                         $_SESSION["lctr_last_value"] = $old_counters;
1825                 }
1826
1827                 return $ret_arr;
1828         }
1829
1830 /*      function getFeedCounter($link, $id) {
1831
1832                 $result = db_query($link, "SELECT
1833                                 count(id) as count,last_error
1834                         FROM ttrss_entries,ttrss_user_entries,ttrss_feeds
1835                         WHERE feed_id = '$id' AND unread = true
1836                         AND ttrss_user_entries.feed_id = ttrss_feeds.id
1837                         AND ttrss_user_entries.ref_id = ttrss_entries.id");
1838
1839                         $count = db_fetch_result($result, 0, "count");
1840                         $last_error = htmlspecialchars(db_fetch_result($result, 0, "last_error"));
1841
1842                         print "<counter type=\"feed\" id=\"$id\" counter=\"$count\" error=\"$last_error\"/>";
1843         } */
1844
1845         function getFeedCounters($link, $smart_mode = SMART_RPC_COUNTERS) {
1846
1847                 if ($smart_mode) {
1848                         if (!$_SESSION["fctr_last_value"]) {
1849                                 $_SESSION["fctr_last_value"] = array();
1850                         }
1851                 }
1852
1853                 $old_counters = $_SESSION["fctr_last_value"];
1854
1855                 $result = db_query($link, "SELECT id,last_error,parent_feed,
1856                         SUBSTRING(last_updated,1,19) AS last_updated,
1857                         (SELECT count(id)
1858                                 FROM ttrss_entries,ttrss_user_entries
1859                                 WHERE feed_id = ttrss_feeds.id AND
1860                                         ttrss_user_entries.ref_id = ttrss_entries.id
1861                                 AND unread = true AND owner_uid = ".$_SESSION["uid"].") as count
1862                         FROM ttrss_feeds WHERE owner_uid = ".$_SESSION["uid"] . "
1863                                 AND parent_feed IS NULL");
1864
1865                 $fctrs_modified = false;
1866
1867                 $short_date = get_pref($link, 'SHORT_DATE_FORMAT');
1868
1869                 while ($line = db_fetch_assoc($result)) {
1870
1871                         $id = $line["id"];
1872                         $count = $line["count"];
1873                         $last_error = htmlspecialchars($line["last_error"]);
1874
1875                         if (get_pref($link, 'HEADLINES_SMART_DATE')) {
1876                                 $last_updated = smart_date_time(strtotime($line["last_updated"]));
1877                         } else {
1878                                 $last_updated = date($short_date, strtotime($line["last_updated"]));
1879                         }
1880
1881                         $has_img = is_file(ICONS_DIR . "/$id.ico");
1882
1883                         $tmp_result = db_query($link,
1884                                 "SELECT id,COUNT(unread) AS unread
1885                                 FROM ttrss_feeds LEFT JOIN ttrss_user_entries
1886                                         ON (ttrss_feeds.id = ttrss_user_entries.feed_id)
1887                                 WHERE parent_feed = '$id' AND unread = true GROUP BY ttrss_feeds.id");
1888
1889                         if (db_num_rows($tmp_result) > 0) {
1890                                 while ($l = db_fetch_assoc($tmp_result)) {
1891                                         $count += $l["unread"];
1892                                 }
1893                         }
1894
1895                         if (!$smart_mode || $old_counters[$id] != $count) {
1896                                 $old_counters[$id] = $count;
1897                                 $fctrs_modified = true;
1898
1899                                 if ($last_error) {
1900                                         $error_part = "error=\"$last_error\"";
1901                                 } else {
1902                                         $error_part = "";
1903                                 }
1904
1905                                 if ($has_img) {
1906                                         $has_img_part = "hi=\"$has_img\"";
1907                                 } else {
1908                                         $has_img_part = "";
1909                                 }
1910
1911                                 print "<counter type=\"feed\" id=\"$id\" counter=\"$count\" $has_img_part $error_part updated=\"$last_updated\"/>";
1912                         }
1913                 }
1914
1915                 if ($smart_mode && $fctrs_modified) {
1916                         $_SESSION["fctr_last_value"] = $old_counters;
1917                 }
1918         }
1919
1920         function get_script_dt_add() {
1921                 if (strpos(VERSION, "99") === false) {
1922                         return VERSION;
1923                 } else {
1924                         return time();
1925                 }
1926         }
1927
1928         function get_pgsql_version($link) {
1929                 $result = db_query($link, "SELECT version() AS version");
1930                 $version = split(" ", db_fetch_result($result, 0, "version"));
1931                 return $version[1];
1932         }
1933
1934         function print_error_xml($code, $add_msg = "") {
1935                 global $ERRORS;
1936
1937                 $error_msg = $ERRORS[$code];
1938
1939                 if ($add_msg) {
1940                         $error_msg = "$error_msg; $add_msg";
1941                 }
1942
1943                 print "<rpc-reply>";
1944                 print "<error error-code=\"$code\" error-msg=\"$error_msg\"/>";
1945                 print "</rpc-reply>";
1946         }
1947
1948         function subscribe_to_feed($link, $feed_link, $cat_id = 0) {
1949
1950                 # check for feed:http://url
1951                 $feed_link = trim(preg_replace("/^feed:/", "", $feed_link));
1952
1953                 # check for feed://URL
1954                 if (strpos($feed_link, "//") === 0) {
1955                         $feed_link = "http:$feed_link";
1956                 }
1957
1958                 if ($feed_link == "") return;
1959
1960                 if ($cat_id == "0" || !$cat_id) {
1961                         $cat_qpart = "NULL";
1962                 } else {
1963                         $cat_qpart = "'$cat_id'";
1964                 }
1965
1966                 $result = db_query($link,
1967                         "SELECT id FROM ttrss_feeds
1968                         WHERE feed_url = '$feed_link' AND owner_uid = ".$_SESSION["uid"]);
1969
1970                 if (db_num_rows($result) == 0) {
1971
1972                         $result = db_query($link,
1973                                 "INSERT INTO ttrss_feeds (owner_uid,feed_url,title,cat_id)
1974                                 VALUES ('".$_SESSION["uid"]."', '$feed_link',
1975                                 '[Unknown]', $cat_qpart)");
1976
1977                         $result = db_query($link,
1978                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$feed_link'
1979                                 AND owner_uid = " . $_SESSION["uid"]);
1980
1981                         $feed_id = db_fetch_result($result, 0, "id");
1982
1983                         if ($feed_id) {
1984                                 update_rss_feed($link, $feed_link, $feed_id, true);
1985                         }
1986
1987                         return true;
1988                 } else {
1989                         return false;
1990                 }
1991         }
1992
1993         function print_feed_select($link, $id, $default_id = "",
1994                 $attributes = "", $include_all_feeds = true) {
1995
1996                 print "<select id=\"$id\" name=\"$id\" $attributes>";
1997                 if ($include_all_feeds) {
1998                         print "<option value=\"0\">All feeds</option>";
1999                 }
2000
2001                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
2002                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
2003
2004                 if (db_num_rows($result) > 0 && $include_all_feeds) {
2005                         print "<option disabled>--------</option>";
2006                 }
2007
2008                 while ($line = db_fetch_assoc($result)) {
2009                         if ($line["id"] == $default_id) {
2010                                 $is_selected = "selected";
2011                         } else {
2012                                 $is_selected = "";
2013                         }
2014                         printf("<option $is_selected value='%d'>%s</option>",
2015                                 $line["id"], htmlspecialchars(db_unescape_string($line["title"])));
2016                 }
2017
2018                 print "</select>";
2019         }
2020
2021         function print_feed_cat_select($link, $id, $default_id = "",
2022                 $attributes = "", $include_all_cats = true) {
2023
2024                 print "<select id=\"$id\" name=\"$id\" $attributes>";
2025
2026                 if ($include_all_cats) {
2027                         print "<option value=\"0\">".__('Uncategorized')."</option>";
2028                 }
2029
2030                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
2031                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
2032
2033                 if (db_num_rows($result) > 0 && $include_all_cats) {
2034                         print "<option disabled>--------</option>";
2035                 }
2036
2037                 while ($line = db_fetch_assoc($result)) {
2038                         if ($line["id"] == $default_id) {
2039                                 $is_selected = "selected";
2040                         } else {
2041                                 $is_selected = "";
2042                         }
2043                         printf("<option $is_selected value='%d'>%s</option>",
2044                                 $line["id"], htmlspecialchars(db_unescape_string($line["title"])));
2045                 }
2046
2047                 print "</select>";
2048         }
2049
2050         function checkbox_to_sql_bool($val) {
2051                 return ($val == "on") ? "true" : "false";
2052         }
2053
2054         function getFeedCatTitle($link, $id) {
2055                 if ($id == -1) {
2056                         return __("Special");
2057                 } else if ($id < -10) {
2058                         return __("Labels");
2059                 } else if ($id > 0) {
2060                         $result = db_query($link, "SELECT ttrss_feed_categories.title
2061                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
2062                                         cat_id = ttrss_feed_categories.id");
2063                         if (db_num_rows($result) == 1) {
2064                                 return db_fetch_result($result, 0, "title");
2065                         } else {
2066                                 return __("Uncategorized");
2067                         }
2068                 } else {
2069                         return "getFeedCatTitle($id) failed";
2070                 }
2071
2072         }
2073
2074         function getFeedTitle($link, $id) {
2075                 if ($id == -1) {
2076                         return __("Starred articles");
2077                 } else if ($id < -10) {
2078                         $label_id = -10 - $id;
2079                         $result = db_query($link, "SELECT description FROM ttrss_labels WHERE id = '$label_id'");
2080                         if (db_num_rows($result) == 1) {
2081                                 return db_fetch_result($result, 0, "description");
2082                         } else {
2083                                 return "Unknown label ($label_id)";
2084                         }
2085
2086                 } else if ($id > 0) {
2087                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
2088                         if (db_num_rows($result) == 1) {
2089                                 return db_fetch_result($result, 0, "title");
2090                         } else {
2091                                 return "Unknown feed ($id)";
2092                         }
2093                 } else {
2094                         return "getFeedTitle($id) failed";
2095                 }
2096
2097         }
2098
2099         function get_session_cookie_name() {
2100                 return ((!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME);
2101         }
2102
2103         function print_init_params($link) {
2104                 print "<init-params>";
2105                 if ($_SESSION["stored-params"]) {
2106                         foreach (array_keys($_SESSION["stored-params"]) as $key) {
2107                                 if ($key) {
2108                                         $value = htmlspecialchars($_SESSION["stored-params"][$key]);
2109                                         print "<param key=\"$key\" value=\"$value\"/>";
2110                                 }
2111                         }
2112                 }
2113
2114                 print "<param key=\"daemon_enabled\" value=\"" . ENABLE_UPDATE_DAEMON . "\"/>";
2115                 print "<param key=\"feeds_frame_refresh\" value=\"" . FEEDS_FRAME_REFRESH . "\"/>";
2116                 print "<param key=\"daemon_refresh_only\" value=\"" . DAEMON_REFRESH_ONLY . "\"/>";
2117
2118                 print "<param key=\"on_catchup_show_next_feed\" value=\"" .
2119                         get_pref($link, "ON_CATCHUP_SHOW_NEXT_FEED") . "\"/>";
2120
2121                 print "<param key=\"hide_read_feeds\" value=\"" .
2122                         sprintf("%d", get_pref($link, "HIDE_READ_FEEDS")) . "\"/>";
2123
2124                 print "<param key=\"feeds_sort_by_unread\" value=\"" .
2125                         sprintf("%d", get_pref($link, "FEEDS_SORT_BY_UNREAD")) . "\"/>";
2126
2127                 print "<param key=\"confirm_feed_catchup\" value=\"" .
2128                         sprintf("%d", get_pref($link, "CONFIRM_FEED_CATCHUP")) . "\"/>";
2129
2130                 print "<param key=\"cdm_auto_catchup\" value=\"" .
2131                         sprintf("%d", get_pref($link, "CDM_AUTO_CATCHUP")) . "\"/>";
2132
2133                 print "</init-params>";
2134         }
2135
2136         function print_runtime_info($link) {
2137                 print "<runtime-info>";
2138                 if (ENABLE_UPDATE_DAEMON) {
2139                         print "<param key=\"daemon_is_running\" value=\"".
2140                                 sprintf("%d", file_is_locked("update_daemon.lock")) . "\"/>";
2141                 }
2142                 if (CHECK_FOR_NEW_VERSION && $_SESSION["access_level"] >= 10) {
2143
2144                         if ($_SESSION["last_version_check"] + 600 < time()) {
2145                                 $new_version_details = check_for_update($link);
2146
2147                                 print "<param key=\"new_version_available\" value=\"".
2148                                         sprintf("%d", $new_version_details != ""). "\"/>";
2149
2150                                 $_SESSION["last_version_check"] = time();
2151                         }
2152                 }
2153
2154                 print "</runtime-info>";
2155         }
2156
2157         function getSearchSql($search, $match_on) {
2158
2159                 $search_query_part = "";
2160
2161                 $keywords = split(" ", $search);
2162                 $query_keywords = array();
2163
2164                 if ($match_on == "both") {
2165
2166                         foreach ($keywords as $k) {
2167                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) LIKE UPPER('%$k%')
2168                                         OR UPPER(ttrss_entries.content) LIKE UPPER('%$k%'))");
2169                         }
2170
2171                         $search_query_part = implode("AND", $query_keywords) . " AND ";
2172
2173                 } else if ($match_on == "title") {
2174
2175                         foreach ($keywords as $k) {
2176                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) LIKE UPPER('%$k%'))");
2177                         }
2178
2179                         $search_query_part = implode("AND", $query_keywords) . " AND ";
2180
2181                 } else if ($match_on == "content") {
2182
2183                         foreach ($keywords as $k) {
2184                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) LIKE UPPER('%$k%'))");
2185                         }
2186                 }
2187
2188                 $search_query_part = implode("AND", $query_keywords);
2189
2190                 return $search_query_part;
2191         }
2192
2193         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0) {
2194
2195                         if ($search) {
2196
2197                                 $search_query_part = getSearchSql($search, $match_on);
2198                                 $search_query_part .= " AND ";
2199
2200                         } else {
2201                                 $search_query_part = "";
2202                         }
2203
2204                         $view_query_part = "";
2205
2206                         if ($view_mode == "adaptive") {
2207                                 if ($search) {
2208                                         $view_query_part = " ";
2209                                 } else if ($feed != -1) {
2210                                         $unread = getFeedUnread($link, $feed, $cat_view);
2211                                         if ($unread > 0) {
2212                                                 $view_query_part = " unread = true AND ";
2213                                         }
2214                                 }
2215                         }
2216
2217                         if ($view_mode == "marked") {
2218                                 $view_query_part = " marked = true AND ";
2219                         }
2220
2221                         if ($view_mode == "unread") {
2222                                 $view_query_part = " unread = true AND ";
2223                         }
2224
2225                         if ($limit > 0) {
2226                                 $limit_query_part = "LIMIT " . $limit;
2227                         }
2228
2229                         $vfeed_query_part = "";
2230
2231                         // override query strategy and enable feed display when searching globally
2232                         if ($search && $search_mode == "all_feeds") {
2233                                 $query_strategy_part = "ttrss_entries.id > 0";
2234                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2235                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
2236                                 $query_strategy_part = "ttrss_entries.id > 0";
2237                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
2238                                         id = feed_id) as feed_title,";
2239                         } else if ($feed >= 0 && $search && $search_mode == "this_cat") {
2240
2241                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2242
2243                                 $tmp_result = false;
2244
2245                                 if ($cat_view) {
2246                                         $tmp_result = db_query($link, "SELECT id
2247                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
2248                                 } else {
2249                                         $tmp_result = db_query($link, "SELECT id
2250                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
2251                                                         WHERE id = '$feed') AND id != '$feed'");
2252                                 }
2253
2254                                 $cat_siblings = array();
2255
2256                                 if (db_num_rows($tmp_result) > 0) {
2257                                         while ($p = db_fetch_assoc($tmp_result)) {
2258                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
2259                                         }
2260
2261                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
2262                                                 $feed, implode(" OR ", $cat_siblings));
2263
2264                                 } else {
2265                                         $query_strategy_part = "ttrss_entries.id > 0";
2266                                 }
2267
2268                         } else if ($feed >= 0) {
2269
2270                                 if ($cat_view) {
2271
2272                                         if ($feed > 0) {
2273                                                 $query_strategy_part = "cat_id = '$feed'";
2274                                         } else {
2275                                                 $query_strategy_part = "cat_id IS NULL";
2276                                         }
2277
2278                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2279
2280                                 } else {
2281                                         $tmp_result = db_query($link, "SELECT id
2282                                                 FROM ttrss_feeds WHERE parent_feed = '$feed'
2283                                                 ORDER BY cat_id,title");
2284
2285                                         $parent_ids = array();
2286
2287                                         if (db_num_rows($tmp_result) > 0) {
2288                                                 while ($p = db_fetch_assoc($tmp_result)) {
2289                                                         array_push($parent_ids, "feed_id = " . $p["id"]);
2290                                                 }
2291
2292                                                 $query_strategy_part = sprintf("(feed_id = %d OR %s)",
2293                                                         $feed, implode(" OR ", $parent_ids));
2294
2295                                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2296                                         } else {
2297                                                 $query_strategy_part = "feed_id = '$feed'";
2298                                         }
2299                                 }
2300                         } else if ($feed == -1) { // starred virtual feed
2301                                 $query_strategy_part = "marked = true";
2302                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2303                         } else if ($feed <= -10) { // labels
2304                                 $label_id = -$feed - 11;
2305
2306                                 $tmp_result = db_query($link, "SELECT sql_exp FROM ttrss_labels
2307                                         WHERE id = '$label_id'");
2308
2309                                 $query_strategy_part = db_fetch_result($tmp_result, 0, "sql_exp");
2310
2311                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
2312                         } else {
2313                                 $query_strategy_part = "id > 0"; // dumb
2314                         }
2315
2316                         if (get_pref($link, 'REVERSE_HEADLINES')) {
2317                                 $order_by = "updated";
2318                         } else {
2319                                 $order_by = "updated DESC";
2320                         }
2321
2322                         if ($override_order) {
2323                                 $order_by = $override_order;
2324                         }
2325
2326                         $feed_title = "";
2327
2328                         if ($search && $search_mode == "all_feeds") {
2329                                 $feed_title = __("Global search results")." ($search)";
2330                         } else if ($search && preg_match('/^-?[0-9][0-9]*$/', $feed) == false) {
2331                                 $feed_title = __("Tag search results")." ($search, $feed)";
2332                         } else if (preg_match('/^-?[0-9][0-9]*$/', $feed) == false) {
2333                                 $feed_title = $feed;
2334                         } else if (preg_match('/^-?[0-9][0-9]*$/', $feed) != false && $feed >= 0) {
2335
2336                                 if ($cat_view) {
2337
2338                                         if ($feed != 0) {
2339                                                 $result = db_query($link, "SELECT title FROM ttrss_feed_categories
2340                                                         WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
2341                                                 $feed_title = db_fetch_result($result, 0, "title");
2342                                         } else {
2343                                                 $feed_title = __("Uncategorized");
2344                                         }
2345
2346                                         if ($search) {
2347                                                 $feed_title = __("Category search results")." ($search, $feed_title)";
2348                                         }
2349
2350                                 } else {
2351
2352                                         $result = db_query($link, "SELECT title,site_url,last_error FROM ttrss_feeds
2353                                                 WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
2354
2355                                         $feed_title = db_fetch_result($result, 0, "title");
2356                                         $feed_site_url = db_fetch_result($result, 0, "site_url");
2357                                         $last_error = db_fetch_result($result, 0, "last_error");
2358
2359                                         if ($search) {
2360                                                 $feed_title = __("Feed search results") . " ($search, $feed_title)";
2361                                         }
2362                                 }
2363
2364                         } else if ($feed == -1) {
2365                                 $feed_title = __("Starred articles");
2366                         } else if ($feed < -10) {
2367                                 $label_id = -$feed - 11;
2368                                 $result = db_query($link, "SELECT description FROM ttrss_labels
2369                                         WHERE id = '$label_id'");
2370                                 $feed_title = db_fetch_result($result, 0, "description");
2371
2372                                 if ($search) {
2373                                         $feed_title = __("Label search results") . " ($search, $feed_title)";
2374                                 }
2375                         } else {
2376                                 $feed_title = "?";
2377                         }
2378
2379                         $feed_title = db_unescape_string($feed_title);
2380
2381                         if ($feed < -10) error_reporting (0);
2382
2383                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2384
2385                                 if ($feed >= 0) {
2386                                         $feed_kind = "Feeds";
2387                                 } else {
2388                                         $feed_kind = "Labels";
2389                                 }
2390
2391                                 $content_query_part = "content as content_preview,";
2392
2393                                 if ($limit_query_part) {
2394                                         $offset_query_part = "OFFSET $offset";
2395                                 }
2396
2397                                 $query = "SELECT
2398                                                 guid,
2399                                                 ttrss_entries.id,ttrss_entries.title,
2400                                                 SUBSTRING(updated,1,16) as updated,
2401                                                 unread,feed_id,marked,link,last_read,
2402                                                 SUBSTRING(last_read,1,19) as last_read_noms,
2403                                                 $vfeed_query_part
2404                                                 $content_query_part
2405                                                 SUBSTRING(updated,1,19) as updated_noms,
2406                                                 author
2407                                         FROM
2408                                                 ttrss_entries,ttrss_user_entries,ttrss_feeds
2409                                         WHERE
2410                                         ttrss_feeds.hidden = false AND
2411                                         ttrss_user_entries.feed_id = ttrss_feeds.id AND
2412                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2413                                         ttrss_user_entries.owner_uid = '".$_SESSION["uid"]."' AND
2414                                         $search_query_part
2415                                         $view_query_part
2416                                         $query_strategy_part ORDER BY $order_by
2417                                         $limit_query_part $offset_query_part";
2418
2419                                 $result = db_query($link, $query);
2420
2421                                 if ($_GET["debug"]) print $query;
2422
2423                         } else {
2424                                 // browsing by tag
2425
2426                                 $feed_kind = "Tags";
2427
2428                                 $result = db_query($link, "SELECT
2429                                         guid,
2430                                         ttrss_entries.id as id,title,
2431                                         SUBSTRING(updated,1,16) as updated,
2432                                         unread,feed_id,
2433                                         marked,link,last_read,
2434                                         SUBSTRING(last_read,1,19) as last_read_noms,
2435                                         $vfeed_query_part
2436                                         $content_query_part
2437                                         SUBSTRING(updated,1,19) as updated_noms
2438                                         FROM
2439                                                 ttrss_entries,ttrss_user_entries,ttrss_tags
2440                                         WHERE
2441                                                 ref_id = ttrss_entries.id AND
2442                                                 ttrss_user_entries.owner_uid = '".$_SESSION["uid"]."' AND
2443                                                 post_int_id = int_id AND tag_name = '$feed' AND
2444                                                 $view_query_part
2445                                                 $search_query_part
2446                                                 $query_strategy_part ORDER BY $order_by
2447                                         $limit_query_part");
2448                         }
2449
2450                         return array($result, $feed_title, $feed_site_url, $last_error);
2451
2452         }
2453
2454         function generate_syndicated_feed($link, $feed, $is_cat,
2455                 $search, $search_mode, $match_on) {
2456
2457                 $qfh_ret = queryFeedHeadlines($link, $feed,
2458                                 30, false, $is_cat, $search, $search_mode, $match_on, "updated DESC");
2459
2460                 $result = $qfh_ret[0];
2461                 $feed_title = htmlspecialchars($qfh_ret[1]);
2462                 $feed_site_url = $qfh_ret[2];
2463                 $last_error = $qfh_ret[3];
2464
2465                 print "<rss version=\"2.0\">
2466                         <channel>
2467                         <title>$feed_title</title>
2468                         <link>$feed_site_url</link>
2469                         <generator>Tiny Tiny RSS v".VERSION."</generator>";
2470
2471                 while ($line = db_fetch_assoc($result)) {
2472                         print "<item>";
2473                         print "<id>" . htmlspecialchars($line["guid"]) . "</id>";
2474                         print "<link>" . htmlspecialchars($line["link"]) . "</link>";
2475
2476                         $rfc822_date = date('r', strtotime($line["updated"]));
2477
2478                         print "<pubDate>$rfc822_date</pubDate>";
2479
2480                         print "<title>" .
2481                                 htmlspecialchars($line["title"]) . "</title>";
2482
2483                         print "<description>" .
2484                                 htmlspecialchars($line["content_preview"]) . "</description>";
2485
2486                         print "</item>";
2487                 }
2488
2489                 print "</channel></rss>";
2490
2491         }
2492
2493         function getCategoryTitle($link, $cat_id) {
2494
2495                 $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
2496                         id = '$cat_id'");
2497
2498                 if (db_num_rows($result) == 1) {
2499                         return db_fetch_result($result, 0, "title");
2500                 } else {
2501                         return "Uncategorized";
2502                 }
2503         }
2504
2505         function sanitize_rss($str) {
2506                 $res = $str;
2507
2508                 $res = preg_replace('/<script.*?>/i',
2509                         "<p class=\"scriptWarn\">Disabled script: ", $res);
2510
2511                 $res = preg_replace('/<\/script.*?>/i', "</p>", $res);
2512
2513 /*              $res = preg_replace('/<embed.*?>/i', "", $res);
2514
2515                 $res = preg_replace('/<object.*?>.*?<\/object>/i',
2516                         "<p class=\"objectWarn\">(Disabled html object
2517                         - flash or other embedded content)</p>", $res);  */
2518
2519                 return $res;
2520         }
2521
2522         function send_headlines_digests($link, $limit = 100) {
2523
2524                 if (!DIGEST_ENABLE) return false;
2525
2526                 $user_limit = DIGEST_EMAIL_LIMIT;
2527                 $days = 1;
2528
2529                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
2530
2531                 if (DB_TYPE == "pgsql") {
2532                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
2533                 } else if (DB_TYPE == "mysql") {
2534                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
2535                 }
2536
2537                 $result = db_query($link, "SELECT id,email FROM ttrss_users
2538                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
2539
2540                 while ($line = db_fetch_assoc($result)) {
2541                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
2542                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
2543
2544                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
2545                                 $digest = $tuple[0];
2546                                 $headlines_count = $tuple[1];
2547
2548                                 if ($headlines_count > 0) {
2549                                         $rc = mail($line["login"] . " <" . $line["email"] . ">",
2550                                                 "[tt-rss] New headlines for last 24 hours", $digest,
2551                                                 "From: " . MAIL_FROM . "\n".
2552                                                 "Content-Type: text/plain; charset=\"utf-8\"\n".
2553                                                 "Content-Transfer-Encoding: 8bit\n");
2554                                         print "RC=$rc\n";
2555                                         db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
2556                                                         WHERE id = " . $line["id"]);
2557                                 } else {
2558                                         print "No headlines\n";
2559                                 }
2560                         }
2561                 }
2562
2563 //              $digest = prepare_headlines_digest($link, $user_id, $days, $limit);
2564
2565         }
2566
2567         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
2568                 $tmp =  __("New headlines for last 24 hours, as of ") . date("Y/m/d H:m") . "\n";
2569                 $tmp .= "=======================================================\n\n";
2570
2571                 if (DB_TYPE == "pgsql") {
2572                         $interval_query = "ttrss_entries.date_entered > NOW() - INTERVAL '$days days'";
2573                 } else if (DB_TYPE == "mysql") {
2574                         $interval_query = "ttrss_entries.date_entered > DATE_SUB(NOW(), INTERVAL $days DAY)";
2575                 }
2576
2577                 $result = db_query($link, "SELECT ttrss_entries.title,
2578                                 ttrss_feeds.title AS feed_title,
2579                                 date_entered,
2580                                 link,
2581                                 SUBSTRING(last_updated,1,19) AS last_updated
2582                         FROM
2583                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
2584                         WHERE
2585                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
2586                                 AND include_in_digest = true
2587                                 AND $interval_query
2588                                 AND ttrss_user_entries.owner_uid = $user_id
2589                                 AND unread = true ORDER BY ttrss_feeds.title, date_entered DESC
2590                         LIMIT $limit");
2591
2592                 $cur_feed_title = "";
2593
2594                 $headlines_count = db_num_rows($result);
2595
2596                 while ($line = db_fetch_assoc($result)) {
2597                         $updated = smart_date_time(strtotime($line["last_updated"]));
2598                         $feed_title = $line["feed_title"];
2599
2600                         if ($cur_feed_title != $feed_title) {
2601                                 $cur_feed_title = $feed_title;
2602
2603                                 $tmp .= "$feed_title\n\n";
2604                         }
2605
2606                         $tmp .= " * " . trim($line["title"]) . " - $updated\n";
2607                         $tmp .= "   " . trim($line["link"]) . "\n";
2608                         $tmp .= "\n";
2609                 }
2610
2611                 $tmp .= "--- \n";
2612                 $tmp .= __("You have been sent this email because you have enabled daily digests in Tiny Tiny RSS at ") .
2613                         DIGEST_HOSTNAME . "\n".
2614                         __("To unsubscribe, visit your configuration options or contact instance owner.\n");
2615
2616
2617                 return array($tmp, $headlines_count);
2618         }
2619
2620         function check_for_update($link, $brief_fmt = true) {
2621                 $releases_feed = "http://tt-rss.spb.ru/releases.rss";
2622
2623                 if (!CHECK_FOR_NEW_VERSION || $_SESSION["access_level"] < 10) {
2624                         return;
2625                 }
2626
2627                 error_reporting(0);
2628                 $rss = fetch_rss($releases_feed);
2629                 error_reporting (DEFAULT_ERROR_LEVEL);
2630
2631                 if ($rss) {
2632
2633                         $items = $rss->items;
2634
2635                         if (!$items || !is_array($items)) $items = $rss->entries;
2636                         if (!$items || !is_array($items)) $items = $rss;
2637
2638                         if (!is_array($items) || count($items) == 0) {
2639                                 return;
2640                         }
2641
2642                         $latest_item = $items[0];
2643
2644                         $latest_version = trim(preg_replace("/(Milestone)|(completed)/", "", $latest_item["title"]));
2645
2646                         $release_url = sanitize_rss($latest_item["link"]);
2647                         $content = sanitize_rss($latest_item["description"]);
2648
2649                         if (version_compare(VERSION, $latest_version) == -1) {
2650                                 if ($brief_fmt) {
2651                                         return format_notice("<a href=\"javascript:showBlockElement('milestoneDetails')\">
2652                                                 New version of Tiny-Tiny RSS ($latest_version) is available (click for details)</a>
2653                                                 <div id=\"milestoneDetails\">$content</div>");
2654                                 } else {
2655                                         return "New version of Tiny-Tiny RSS ($latest_version) is available:
2656                                                 <div class='milestoneDetails'>$content</div>
2657                                                 Visit <a target=\"_new\" href=\"http://tt-rss.spb.ru/\">official site</a> for
2658                                                 download and update information.";
2659                                 }
2660
2661                         }
2662                 }
2663         }
2664
2665         function markArticlesById($link, $ids, $cmode) {
2666
2667                 $tmp_ids = array();
2668
2669                 foreach ($ids as $id) {
2670                         array_push($tmp_ids, "ref_id = '$id'");
2671                 }
2672
2673                 $ids_qpart = join(" OR ", $tmp_ids);
2674
2675                 if ($cmode == 0) {
2676                         db_query($link, "UPDATE ttrss_user_entries SET
2677                         marked = false,last_read = NOW()
2678                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2679                 } else if ($cmode == 1) {
2680                         db_query($link, "UPDATE ttrss_user_entries SET
2681                         marked = true
2682                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2683                 } else {
2684                         db_query($link, "UPDATE ttrss_user_entries SET
2685                         marked = NOT marked,last_read = NOW()
2686                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2687                 }
2688         }
2689
2690         function catchupArticlesById($link, $ids, $cmode) {
2691
2692                 $tmp_ids = array();
2693
2694                 foreach ($ids as $id) {
2695                         array_push($tmp_ids, "ref_id = '$id'");
2696                 }
2697
2698                 $ids_qpart = join(" OR ", $tmp_ids);
2699
2700                 if ($cmode == 0) {
2701                         db_query($link, "UPDATE ttrss_user_entries SET
2702                         unread = false,last_read = NOW()
2703                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2704                 } else if ($cmode == 1) {
2705                         db_query($link, "UPDATE ttrss_user_entries SET
2706                         unread = true
2707                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2708                 } else {
2709                         db_query($link, "UPDATE ttrss_user_entries SET
2710                         unread = NOT unread,last_read = NOW()
2711                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
2712                 }
2713         }
2714
2715         function escape_for_form($s) {
2716                 return htmlspecialchars(db_unescape_string($s));
2717         }
2718
2719         function make_guid_from_title($title) {
2720                 return preg_replace("/[ \"\',.:;]/", "-",
2721                         mb_strtolower(strip_tags($title)));
2722         }
2723
2724         function print_headline_subtoolbar($link, $feed_site_url, $feed_title,
2725                         $bottom = false, $rtl_content = false, $feed_id = 0,
2726                         $is_cat = false, $search = false, $match_on = false,
2727                         $search_mode = false, $offset = 0, $limit = 0) {
2728
2729                         $user_page_offset = $offset + 1;
2730
2731                         if (!$bottom) {
2732                                 $class = "headlinesSubToolbar";
2733                                 $tid = "headlineActionsTop";
2734                         } else {
2735                                 $class = "headlinesSubToolbar";
2736                                 $tid = "headlineActionsBottom";
2737                         }
2738
2739                         print "<table class=\"$class\" id=\"$tid\"
2740                                 width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"><tr>";
2741
2742                         if ($rtl_content) {
2743                                 $rtl_cpart = "RTL";
2744                         } else {
2745                                 $rtl_cpart = "";
2746                         }
2747
2748                         $page_prev_link = "javascript:viewFeedGoPage(-1)";
2749                         $page_next_link = "javascript:viewFeedGoPage(1)";
2750                         $page_first_link = "javascript:viewFeedGoPage(0)";
2751
2752                         $catchup_page_link = "javascript:catchupPage()";
2753                         $catchup_feed_link = "javascript:catchupCurrentFeed()";
2754
2755                         if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
2756
2757                                 $sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
2758                                 $sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
2759                                 $sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
2760
2761                                 $tog_unread_link = "javascript:selectionToggleUnread()";
2762                                 $tog_marked_link = "javascript:selectionToggleMarked()";
2763
2764                         } else {
2765
2766                                 $sel_all_link = "javascript:cdmSelectArticles('all')";
2767                                 $sel_unread_link = "javascript:cdmSelectArticles('unread')";
2768                                 $sel_none_link = "javascript:cdmSelectArticles('none')";
2769
2770                                 $tog_unread_link = "javascript:selectionToggleUnread(true)";
2771                                 $tog_marked_link = "javascript:selectionToggleMarked(true)";
2772
2773                         }
2774
2775                         if (!strstr($_SESSION["client.userAgent"], "MSIE")) {
2776
2777                                 print "<td class=\"headlineActions$rtl_cpart\">
2778                                         <ul class=\"headlineDropdownMenu\">
2779                                         <li class=\"top2\">
2780                                         ".__('Select:')."
2781                                                 <a href=\"$sel_all_link\">".__('All')."</a>,
2782                                                 <a href=\"$sel_unread_link\">".__('Unread')."</a>,
2783                                                 <a href=\"$sel_none_link\">".__('None')."</a></li>
2784                                         <li class=\"vsep\">&nbsp;</li>
2785                                         <li class=\"top\">Selection<ul>
2786                                                 <li onclick=\"$tog_unread_link\">".__('Toggle unread')."</li>
2787                                                 <li onclick=\"$tog_marked_link\">".__('Toggle starred')."</li></ul></li>
2788                                         <li class=\"vsep\">&nbsp;</li>
2789                                         <li class=\"top\"><a href=\"$catchup_page_link\">".__('Mark as read')."</a><ul>
2790                                                 <li onclick=\"$catchup_page_link\">".__('This page')."</li>
2791                                                 <li onclick=\"$catchup_feed_link\">".__('Entire feed')."</li></ul></li>
2792                                         <li class=\"vsep\">&nbsp;</li>";
2793
2794                                         if ($limit != 0) {
2795                                                 print "
2796                                                 <li class=\"top\"><a href=\"$page_next_link\">".__('Next page')."</a><ul>
2797                                                         <li onclick=\"$page_prev_link\">".__('Previous page')."</li>
2798                                                         <li onclick=\"$page_first_link\">".__('First page')."</li></ul></li>
2799                                                         </ul>";
2800                                         }
2801
2802                                         print "
2803                                         </td>";
2804
2805                         } else {
2806                         // old style subtoolbar:
2807
2808                                 print "<td class=\"headlineActions$rtl_cpart\">".
2809                                         __('Select:')."
2810                                                                 <a href=\"$sel_all_link\">".__('All')."</a>,
2811                                                                 <a href=\"$sel_unread_link\">".__('Unread')."</a>,
2812                                                                 <a href=\"$sel_none_link\">".__('None')."</a>
2813                                                 &nbsp;&nbsp;".
2814                                                 __('Toggle:')." <a href=\"$tog_unread_link\">".__('Unread')."</a>,
2815                                                         <a href=\"$tog_marked_link\">".__('Starred')."</a>
2816                                                 &nbsp;&nbsp;".
2817                                                 __('Mark as read:')."
2818                                                         <a href=\"#\" onclick=\"$catchup_page_link\">".__('Page')."</a>,
2819                                                         <a href=\"#\" onclick=\"$catchup_feed_link\">".__('Feed')."</a>";
2820                                 print "</td>";
2821
2822                         }
2823
2824                         if ($search && $feed_id >= 0 && get_pref($link, 'ENABLE_LABELS') && GLOBAL_ENABLE_LABELS) {
2825                                 print "<td class=\"headlineActions$rtl_cpart\">
2826                                         <a href=\"javascript:labelFromSearch('$search', '$search_mode',
2827                                                         '$match_on', '$feed_id', '$is_cat');\">
2828                                                 ".__('Convert to Label')."</a></td>";
2829                         }
2830
2831                         print "<td class=\"headlineTitle$rtl_cpart\">";
2832
2833                         if ($feed_site_url) {
2834                                 if (!$bottom) {
2835                                         $target = "target=\"_blank\"";
2836                                 }
2837                                 print "<a $target href=\"$feed_site_url\">$feed_title</a>";
2838                         } else {
2839                                 print $feed_title;
2840                         }
2841
2842                         if ($search) {
2843                                 $search_q = "&q=$search&m=$match_on&smode=$search_mode";
2844                         }
2845
2846                         if ($user_page_offset > 1) {
2847                                 print " [$user_page_offset] ";
2848                         }
2849
2850                         if (!$bottom) {
2851                                 print "
2852                                         <a target=\"_new\"
2853                                                 href=\"backend.php?op=rss&id=$feed_id&is_cat=$is_cat$search_q\">
2854                                                 <img class=\"noborder\"
2855                                                         alt=\"".__('Generated feed')."\" src=\"images/feed-icon-12x12.png\">
2856                                         </a>";
2857                         }
2858
2859                         print "</td>";
2860                         print "</tr></table>";
2861
2862                 }
2863
2864         function outputFeedList($link, $tags = false) {
2865
2866                 print "<ul class=\"feedList\" id=\"feedList\">\n";
2867
2868                 $owner_uid = $_SESSION["uid"];
2869
2870                 /* virtual feeds */
2871
2872                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
2873                         print "<li class=\"feedCat\">".__('Special')."</li>";
2874                         print "<li id=\"feedCatHolder\"><ul class=\"feedCatList\">";
2875                 }
2876
2877                 $num_starred = getFeedUnread($link, -1);
2878
2879                 $class = "virt";
2880
2881                 if ($num_starred > 0) $class .= "Unread";
2882
2883                 printFeedEntry(-1, $class, __("Starred articles"), $num_starred,
2884                         "images/mark_set.png", $link);
2885
2886                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
2887                         print "</ul>\n";
2888                 }
2889
2890                 if (!$tags) {
2891
2892                         if (GLOBAL_ENABLE_LABELS && get_pref($link, 'ENABLE_LABELS')) {
2893
2894                                 $result = db_query($link, "SELECT id,sql_exp,description FROM
2895                                         ttrss_labels WHERE owner_uid = '$owner_uid' ORDER by description");
2896
2897                                 if (db_num_rows($result) > 0) {
2898                                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
2899                                                 print "<li class=\"feedCat\">".__('Labels')."</li>";
2900                                                 print "<li id=\"feedCatHolder\"><ul class=\"feedCatList\">";
2901                                         } else {
2902                                                 print "<li><hr></li>";
2903                                         }
2904                                 }
2905
2906                                 while ($line = db_fetch_assoc($result)) {
2907
2908                                         error_reporting (0);
2909
2910                                         $label_id = -$line['id'] - 11;
2911                                         $count = getFeedUnread($link, $label_id);
2912
2913                                         $class = "label";
2914
2915                                         if ($count > 0) {
2916                                                 $class .= "Unread";
2917                                         }
2918
2919                                         error_reporting (DEFAULT_ERROR_LEVEL);
2920
2921                                         printFeedEntry($label_id,
2922                                                 $class, db_unescape_string($line["description"]),
2923                                                 $count, "images/label.png", $link);
2924
2925                                 }
2926
2927                                 if (db_num_rows($result) > 0) {
2928                                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
2929                                                 print "</ul>";
2930                                         }
2931                                 }
2932
2933                         }
2934
2935                         if (!get_pref($link, 'ENABLE_FEED_CATS')) {
2936                                 print "<li><hr></li>";
2937                         }
2938
2939                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
2940                                 if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
2941                                         $order_by_qpart = "category,unread DESC,title";
2942                                 } else {
2943                                         $order_by_qpart = "category,title";
2944                                 }
2945                         } else {
2946                                 if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
2947                                         $order_by_qpart = "unread DESC,title";
2948                                 } else {
2949                                         $order_by_qpart = "title";
2950                                 }
2951                         }
2952
2953                         $result = db_query($link, "SELECT ttrss_feeds.*,
2954                                 SUBSTRING(last_updated,1,19) AS last_updated_noms,
2955                                 (SELECT COUNT(id) FROM ttrss_entries,ttrss_user_entries
2956                                         WHERE feed_id = ttrss_feeds.id AND unread = true
2957                                                 AND ttrss_user_entries.ref_id = ttrss_entries.id
2958                                                 AND owner_uid = '$owner_uid') as unread,
2959                                 cat_id,last_error,
2960                                 ttrss_feed_categories.title AS category,
2961                                 ttrss_feed_categories.collapsed
2962                                 FROM ttrss_feeds LEFT JOIN ttrss_feed_categories
2963                                         ON (ttrss_feed_categories.id = cat_id)
2964                                 WHERE
2965                                         ttrss_feeds.hidden = false AND
2966                                         ttrss_feeds.owner_uid = '$owner_uid' AND parent_feed IS NULL
2967                                 ORDER BY $order_by_qpart");
2968
2969                         $actid = $_GET["actid"];
2970
2971                         /* real feeds */
2972
2973                         $lnum = 0;
2974
2975                         $total_unread = 0;
2976
2977                         $category = "";
2978
2979                         $short_date = get_pref($link, 'SHORT_DATE_FORMAT');
2980
2981                         while ($line = db_fetch_assoc($result)) {
2982
2983                                 $feed = db_unescape_string($line["title"]);
2984                                 $feed_id = $line["id"];
2985
2986                                 $subop = $_GET["subop"];
2987
2988                                 $unread = $line["unread"];
2989
2990                                 if (get_pref($link, 'HEADLINES_SMART_DATE')) {
2991                                         $last_updated = smart_date_time(strtotime($line["last_updated_noms"]));
2992                                 } else {
2993                                         $last_updated = date($short_date, strtotime($line["last_updated_noms"]));
2994                                 }
2995
2996                                 $rtl_content = sql_bool_to_bool($line["rtl_content"]);
2997
2998                                 if ($rtl_content) {
2999                                         $rtl_tag = "dir=\"RTL\"";
3000                                 } else {
3001                                         $rtl_tag = "";
3002                                 }
3003
3004                                 $tmp_result = db_query($link,
3005                                         "SELECT id,COUNT(unread) AS unread
3006                                         FROM ttrss_feeds LEFT JOIN ttrss_user_entries
3007                                                 ON (ttrss_feeds.id = ttrss_user_entries.feed_id)
3008                                         WHERE parent_feed = '$feed_id' AND unread = true
3009                                         GROUP BY ttrss_feeds.id");
3010
3011                                 if (db_num_rows($tmp_result) > 0) {
3012                                         while ($l = db_fetch_assoc($tmp_result)) {
3013                                                 $unread += $l["unread"];
3014                                         }
3015                                 }
3016
3017                                 $cat_id = $line["cat_id"];
3018
3019                                 $tmp_category = $line["category"];
3020
3021                                 if (!$tmp_category) {
3022                                         $tmp_category = __("Uncategorized");
3023                                 }
3024
3025         //                      $class = ($lnum % 2) ? "even" : "odd";
3026
3027                                 if ($line["last_error"]) {
3028                                         $class = "error";
3029                                 } else {
3030                                         $class = "feed";
3031                                 }
3032
3033                                 if ($unread > 0) $class .= "Unread";
3034
3035                                 if ($actid == $feed_id) {
3036                                         $class .= "Selected";
3037                                 }
3038
3039                                 $total_unread += $unread;
3040
3041                                 if ($category != $tmp_category && get_pref($link, 'ENABLE_FEED_CATS')) {
3042
3043                                         if ($category) {
3044                                                 print "</ul></li>";
3045                                         }
3046
3047                                         $category = $tmp_category;
3048
3049                                         $collapsed = $line["collapsed"];
3050
3051                                         // workaround for NULL category
3052                                         if ($category == __("Uncategorized")) {
3053                                                 if ($_COOKIE["ttrss_vf_uclps"] == 1) {
3054                                                         $collapsed = "t";
3055                                                 }
3056                                         }
3057
3058                                         if ($collapsed == "t" || $collapsed == "1") {
3059                                                 $holder_class = "invisible";
3060                                                 $ellipsis = "...";
3061                                         } else {
3062                                                 $holder_class = "";
3063                                                 $ellipsis = "";
3064                                         }
3065
3066                                         $cat_id = sprintf("%d", $cat_id);
3067
3068                                         $cat_unread = getCategoryUnread($link, $cat_id);
3069
3070                                         $catctr_class = ($cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
3071
3072                                         print "<li class=\"feedCat\" id=\"FCAT-$cat_id\">
3073                                                 <a id=\"FCATN-$cat_id\" href=\"javascript:toggleCollapseCat($cat_id)\">$tmp_category</a>
3074                                                         <a href=\"#\" onclick=\"javascript:viewCategory($cat_id)\" id=\"FCAP-$cat_id\">
3075                                                         <span id=\"FCATCTR-$cat_id\" title=\"Click to browse category\"
3076                                                         class=\"$catctr_class\">($cat_unread)</span> $ellipsis
3077                                                         </a></li>";
3078
3079                                         // !!! NO SPACE before <ul...feedCatList - breaks firstChild DOM function
3080                                         // -> keyboard navigation, etc.
3081                                         print "<li id=\"feedCatHolder\" class=\"$holder_class\"><ul class=\"feedCatList\" id=\"FCATLIST-$cat_id\">";
3082                                 }
3083
3084                                 printFeedEntry($feed_id, $class, $feed, $unread,
3085                                         ICONS_DIR."/$feed_id.ico", $link, $rtl_content,
3086                                         $last_updated, $line["last_error"]);
3087
3088                                 ++$lnum;
3089                         }
3090
3091                         if (db_num_rows($result) == 0) {
3092                                 print "<li>".__('No feeds to display.')."</li>";
3093                         }
3094
3095                 } else {
3096
3097                         // tags
3098
3099 /*                      $result = db_query($link, "SELECT tag_name,count(ttrss_entries.id) AS count
3100                                 FROM ttrss_tags,ttrss_entries,ttrss_user_entries WHERE
3101                                 post_int_id = ttrss_user_entries.int_id AND
3102                                 unread = true AND ref_id = ttrss_entries.id
3103                                 AND ttrss_tags.owner_uid = '$owner_uid' GROUP BY tag_name
3104                         UNION
3105                                 select tag_name,0 as count FROM ttrss_tags WHERE owner_uid = '$owner_uid'
3106                         ORDER BY tag_name"); */
3107
3108                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
3109                                 print "<li class=\"feedCat\">".__('Tags')."</li>";
3110                                 print "<li id=\"feedCatHolder\"><ul class=\"feedCatList\">";
3111                         }
3112
3113                         $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
3114                                 FROM ttrss_user_entries WHERE int_id = post_int_id
3115                                         AND unread = true)) AS count FROM ttrss_tags
3116                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name ORDER BY tag_name");
3117
3118                         $tags = array();
3119
3120                         while ($line = db_fetch_assoc($result)) {
3121                                 $tags[$line["tag_name"]] += $line["count"];
3122                         }
3123
3124                         foreach (array_keys($tags) as $tag) {
3125
3126                                 $unread = $tags[$tag];
3127
3128                                 $class = "tag";
3129
3130                                 if ($unread > 0) {
3131                                         $class .= "Unread";
3132                                 }
3133
3134                                 printFeedEntry($tag, $class, $tag, $unread, "images/tag.png", $link);
3135
3136                         }
3137
3138                         if (db_num_rows($result) == 0) {
3139                                 print "<li>No tags to display.</li>";
3140                         }
3141
3142                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
3143                                 print "</ul>\n";
3144                         }
3145
3146                 }
3147
3148                 print "</ul>";
3149
3150         }
3151
3152         function get_article_tags($link, $id) {
3153
3154                 $a_id = db_escape_string($id);
3155
3156                 $tmp_result = db_query($link, "SELECT DISTINCT tag_name FROM
3157                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
3158                                 ref_id = '$a_id' AND owner_uid = '".$_SESSION["uid"]."' LIMIT 1) ORDER BY tag_name");
3159
3160                 $tags = array();
3161
3162                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
3163                         array_push($tags, $tmp_line["tag_name"]);
3164                 }
3165
3166                 return $tags;
3167         }
3168
3169         function trim_value(&$value) {
3170                 $value = trim($value);
3171         }
3172
3173         function trim_array($array) {
3174                 $tmp = $array;
3175                 array_walk($tmp, 'trim_value');
3176                 return $tmp;
3177         }
3178
3179         function tag_is_valid($tag) {
3180                 if ($tag == '') return false;
3181                 if (preg_match("/^[0-9]*$/", $tag)) return false;
3182
3183                 $tag = iconv("utf-8", "utf-8", $tag);
3184                 if (!$tag) return false;
3185
3186                 return true;
3187         }
3188
3189         function render_login_form($link, $mobile = false) {
3190                 if (!$mobile) {
3191                         require_once "login_form.php";
3192                 } else {
3193                         require_once "mobile/login_form.php";
3194                 }
3195         }
3196
3197         // from http://developer.apple.com/internet/safari/faq.html
3198         function no_cache_incantation() {
3199                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
3200                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
3201                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
3202                 header("Cache-Control: post-check=0, pre-check=0", false);
3203                 header("Pragma: no-cache"); // HTTP/1.0
3204         }
3205
3206         function format_warning($msg, $id = "") {
3207                 return "<div class=\"warning\" id=\"$id\">
3208                         <img src=\"images/sign_excl.png\">$msg</div>";
3209         }
3210
3211         function format_notice($msg) {
3212                 return "<div class=\"notice\">
3213                         <img src=\"images/sign_info.png\">$msg</div>";
3214         }
3215
3216         function print_notice($msg) {
3217                 return print format_notice($msg);
3218         }
3219
3220         function print_warning($msg) {
3221                 return print format_warning($msg);
3222         }
3223
3224         function T_sprintf() {
3225                 $args = func_get_args();
3226                 return vsprintf(__(array_shift($args)), $args);
3227         }
3228
3229 ?>