functions.php

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