functions.php

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