functions.php

   1 <?
   2         session_start();
   3
   4         require_once 'config.php';
   5         require_once 'db-prefs.php';
   6
   7         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
   8
   9         function purge_feed($link, $feed_id, $purge_interval) {
  10
  11                 if (DB_TYPE == "pgsql") {
  12                         db_query($link, "DELETE FROM ttrss_user_entries WHERE
  13                                 marked = false AND feed_id = '$feed_id' AND
  14                                 (SELECT date_entered FROM ttrss_entries WHERE
  15                                         id = ref_id) < NOW() - INTERVAL '$purge_interval days'");
  16                 } else {
  17                         db_query($link, "DELETE FROM ttrss_user_entries WHERE
  18                                 marked = false AND feed_id = '$feed_id' AND
  19                                 (SELECT date_entered FROM ttrss_entries WHERE
  20                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
  21                 }
  22         }
  23
  24         function global_purge_old_posts($link, $do_output = false) {
  25
  26                 $result = db_query($link,
  27                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds");
  28
  29                 while ($line = db_fetch_assoc($result)) {
  30
  31                         $feed_id = $line["id"];
  32                         $purge_interval = $line["purge_interval"];
  33                         $owner_uid = $line["owner_uid"];
  34
  35                         if ($purge_interval == 0) {
  36
  37                                 $tmp_result = db_query($link,
  38                                         "SELECT value FROM ttrss_user_prefs WHERE
  39                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
  40
  41                                 if (db_num_rows($tmp_result) != 0) {
  42                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
  43                                 }
  44                         }
  45
  46                         if ($do_output) {
  47                                 print "<feed id='$feed_id' p_intl='$purge_interval'/>";
  48                         }
  49
  50                         if ($purge_interval > 0) {
  51                                 purge_feed($link, $feed_id, $purge_interval);
  52                         }
  53                 }
  54
  55                 // purge orphaned posts in main content table
  56                 db_query($link, "DELETE FROM ttrss_entries WHERE
  57                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
  58
  59         }
  60
  61         function purge_old_posts($link) {
  62
  63                 $user_id = $_SESSION["uid"];
  64
  65                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
  66                         WHERE owner_uid = '$user_id'");
  67
  68                 while ($line = db_fetch_assoc($result)) {
  69
  70                         $feed_id = $line["id"];
  71                         $purge_interval = $line["purge_interval"];
  72
  73                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
  74
  75                         if ($purge_interval > 0) {
  76                                 purge_feed($link, $feed_id, $purge_interval);
  77                         }
  78                 }
  79
  80                 // purge orphaned posts in main content table
  81                 db_query($link, "DELETE FROM ttrss_entries WHERE
  82                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
  83         }
  84
  85         function update_all_feeds($link, $fetch, $user_id = false) {
  86
  87                 if (WEB_DEMO_MODE) return;
  88
  89                 if (!$user_id) {
  90                         $user_id = $_SESSION["uid"];
  91                         purge_old_posts($link);
  92                 }
  93
  94                 if (DAEMON_REFRESH_ONLY && !$_GET["daemon"]) {
  95                         return;
  96                 }
  97
  98                 db_query($link, "BEGIN");
  99
 100                 $result = db_query($link, "SELECT feed_url,id,
 101                         substring(last_updated,1,19) as last_updated,
 102                         update_interval FROM ttrss_feeds WHERE owner_uid = '$user_id'");
 103
 104                 while ($line = db_fetch_assoc($result)) {
 105                         $upd_intl = $line["update_interval"];
 106
 107                         if (!$upd_intl || $upd_intl == 0) {
 108                                 $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
 109                         }
 110
 111                         if ($fetch || (!$line["last_updated"] ||
 112                                 time() - strtotime($line["last_updated"]) > ($upd_intl * 60))) {
 113
 114                                 update_rss_feed($link, $line["feed_url"], $line["id"]);
 115                         }
 116                 }
 117
 118                 db_query($link, "COMMIT");
 119
 120         }
 121
 122         function check_feed_favicon($feed_url, $feed, $link) {
 123                 $feed_url = str_replace("http://", "", $feed_url);
 124                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
 125
 126                 $icon_url = "http://$feed_url/favicon.ico";
 127                 $icon_file = ICONS_DIR . "/$feed.ico";
 128
 129                 if (!file_exists($icon_file)) {
 130
 131                         error_reporting(0);
 132                         $r = fopen($icon_url, "r");
 133                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 134
 135                         if ($r) {
 136                                 $tmpfname = tempnam("/tmp", "ttrssicon");
 137
 138                                 $t = fopen($tmpfname, "w");
 139
 140                                 while (!feof($r)) {
 141                                         $buf = fread($r, 16384);
 142                                         fwrite($t, $buf);
 143                                 }
 144
 145                                 fclose($r);
 146                                 fclose($t);
 147
 148                                 error_reporting(0);
 149                                 if (!rename($tmpfname, $icon_file)) {
 150                                         unlink($tmpfname);
 151                                 }
 152
 153                                 chmod($icon_file, 0644);
 154
 155                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 156
 157                         }
 158                 }
 159         }
 160
 161         function update_rss_feed($link, $feed_url, $feed) {
 162
 163                 if (WEB_DEMO_MODE) return;
 164
 165                 $feed = db_escape_string($feed);
 166
 167                 error_reporting(0);
 168                 $rss = fetch_rss($feed_url);
 169
 170                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 171
 172                 db_query($link, "BEGIN");
 173
 174                 $feed = db_escape_string($feed);
 175
 176                 if ($rss) {
 177
 178                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 179                                 FROM ttrss_feeds WHERE id = '$feed'");
 180
 181                         $registered_title = db_fetch_result($result, 0, "title");
 182                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 183                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 184
 185                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 186
 187                         if (get_pref($link, 'ENABLE_FEED_ICONS', $owner_uid)) {
 188                                 check_feed_favicon($feed_url, $feed, $link);
 189                         }
 190
 191                         if (!$registered_title) {
 192                                 $feed_title = db_escape_string($rss->channel["title"]);
 193                                 db_query($link, "UPDATE ttrss_feeds SET
 194                                         title = '$feed_title' WHERE id = '$feed'");
 195                         }
 196
 197                         $site_url = $rss->channel["link"];
 198
 199                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 200                                 $site_url = db_escape_string($rss->channel["link"]);
 201                                 db_query($link, "UPDATE ttrss_feeds SET
 202                                         site_url = '$site_url' WHERE id = '$feed'");
 203                         }
 204
 205 //                      print "I: " . $rss->channel["image"]["url"];
 206
 207                         $icon_url = $rss->image["url"];
 208
 209                         if ($icon_url && !$orig_icon_url != db_escape_string($icon_url)) {
 210                                 $icon_url = db_escape_string($icon_url);
 211                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 212                         }
 213
 214
 215                         $filters = array();
 216
 217                         $result = db_query($link, "SELECT reg_exp,
 218                                 (SELECT name FROM ttrss_filter_types
 219                                         WHERE id = filter_type) as name
 220                                 FROM ttrss_filters WHERE
 221                                 owner_uid = $owner_uid AND
 222                                 (feed_id IS NULL OR feed_id = '$feed')");
 223
 224                         while ($line = db_fetch_assoc($result)) {
 225                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 226                                 array_push($filters[$line["name"]], $line["reg_exp"]);
 227                         }
 228
 229                         foreach ($rss->items as $item) {
 230
 231                                 $entry_guid = $item["id"];
 232
 233                                 if (!$entry_guid) $entry_guid = $item["guid"];
 234                                 if (!$entry_guid) $entry_guid = $item["link"];
 235
 236                                 if (!$entry_guid) continue;
 237
 238                                 $entry_timestamp = "";
 239
 240                                 $rss_2_date = $item['pubdate'];
 241                                 $rss_1_date = $item['dc']['date'];
 242                                 $atom_date = $item['issued'];
 243
 244                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 245                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 246                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 247
 248                                 if ($entry_timestamp == "") {
 249                                         $entry_timestamp = time();
 250                                         $no_orig_date = 'true';
 251                                 } else {
 252                                         $no_orig_date = 'false';
 253                                 }
 254
 255                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 256
 257                                 $entry_title = $item["title"];
 258                                 $entry_link = $item["link"];
 259
 260                                 if (!$entry_title) continue;
 261                                 if (!$entry_link) continue;
 262
 263                                 $entry_content = $item["content:escaped"];
 264
 265                                 if (!$entry_content) $entry_content = $item["content:encoded"];
 266                                 if (!$entry_content) $entry_content = $item["content"];
 267                                 if (!$entry_content) $entry_content = $item["description"];
 268
 269                                 $entry_content_unescaped = $entry_content;
 270
 271 //                              if (!$entry_content) continue;
 272
 273                                 // WTF
 274                                 if (is_array($entry_content)) {
 275                                         $entry_content = $entry_content["encoded"];
 276                                         if (!$entry_content) $entry_content = $entry_content["escaped"];
 277                                 }
 278
 279 //                              print_r($item);
 280 //                              print_r($entry_content);
 281
 282                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 283
 284                                 $entry_comments = $item["comments"];
 285
 286                                 $entry_guid = db_escape_string($entry_guid);
 287
 288                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 289                                         WHERE guid = '$entry_guid'");
 290
 291                                 $entry_content = db_escape_string($entry_content);
 292                                 $entry_title = db_escape_string($entry_title);
 293                                 $entry_link = db_escape_string($entry_link);
 294                                 $entry_comments = db_escape_string($entry_comments);
 295
 296                                 if (db_num_rows($result) == 0) {
 297
 298                                         // base post entry does not exist, create it
 299
 300                                         $result = db_query($link,
 301                                                 "INSERT INTO ttrss_entries
 302                                                         (title,
 303                                                         guid,
 304                                                         link,
 305                                                         updated,
 306                                                         content,
 307                                                         content_hash,
 308                                                         no_orig_date,
 309                                                         date_entered,
 310                                                         comments)
 311                                                 VALUES
 312                                                         ('$entry_title',
 313                                                         '$entry_guid',
 314                                                         '$entry_link',
 315                                                         '$entry_timestamp_fmt',
 316                                                         '$entry_content',
 317                                                         '$content_hash',
 318                                                         $no_orig_date,
 319                                                         NOW(),
 320                                                         '$entry_comments')");
 321                                 }
 322
 323                                 // now it should exist, if not - bad luck then
 324
 325                                 $result = db_query($link, "SELECT
 326                                                 id,content_hash,no_orig_date,title,
 327                                                 substring(updated,1,19) as updated
 328                                         FROM
 329                                                 ttrss_entries
 330                                         WHERE guid = '$entry_guid'");
 331
 332                                 if (db_num_rows($result) == 1) {
 333
 334                                                 // this will be used below in update handler
 335                                                 $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 336 //                                              $orig_timestamp = strtotime(db_fetch_result($result, 0, "updated"));
 337 //                                              $orig_no_orig_date = db_fetch_result($result, 0, "no_orig_date");
 338                                                 $orig_title = db_fetch_result($result, 0, "title");
 339
 340                                                 $ref_id = db_fetch_result($result, 0, "id");
 341
 342                                                 // check for user post link to main table
 343
 344                                                 // do we allow duplicate posts with same GUID in different feeds?
 345                                                 if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid)) {
 346                                                         $dupcheck_qpart = "AND feed_id = '$feed'";
 347                                                 } else {
 348                                                         $dupcheck_qpart = "";
 349                                                 }
 350
 351                                                 error_reporting(0);
 352                                                 if (is_filtered($entry_title, $entry_content, $entry_link, $filters)) {
 353                                                         continue;
 354                                                 }
 355                                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 356
 357                                                 $result = db_query($link,
 358                                                         "SELECT ref_id FROM ttrss_user_entries WHERE
 359                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid'
 360                                                                 $dupcheck_qpart");
 361
 362                                                 // okay it doesn't exist - create user entry
 363                                                 if (db_num_rows($result) == 0) {
 364                                                         $result = db_query($link,
 365                                                                 "INSERT INTO ttrss_user_entries
 366                                                                         (ref_id, owner_uid, feed_id)
 367                                                                 VALUES ('$ref_id', '$owner_uid', '$feed')");
 368                                                 }
 369
 370                                         $post_needs_update = false;
 371
 372                                         if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE", $owner_uid) &&
 373                                                 ($content_hash != $orig_content_hash)) {
 374                                                 $post_needs_update = true;
 375                                         }
 376
 377                                         if ($orig_title != $entry_title) {
 378                                                 $post_needs_update = true;
 379                                         }
 380
 381 //                                      this doesn't seem to be very reliable
 382 //
 383 //                                      if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 384 //                                              $post_needs_update = true;
 385 //                                      }
 386
 387                                         // if post needs update, update it and mark all user entries
 388                                         // linking to this post as updated
 389                                         if ($post_needs_update) {
 390
 391 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
 392
 393                                                 db_query($link, "UPDATE ttrss_entries
 394                                                         SET title = '$entry_title', content = '$entry_content'
 395                                                         WHERE id = '$ref_id'");
 396
 397                                                 db_query($link, "UPDATE ttrss_user_entries
 398                                                         SET last_read = null WHERE ref_id = '$ref_id' AND unread = false");
 399
 400                                         }
 401                                 }
 402
 403                                 /* taaaags */
 404                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 405
 406                                 $entry_tags = null;
 407
 408                                 preg_match_all("/<a.*?rel=.tag.*?>([^>]+)<\/a>/i",
 409                                         $entry_content_unescaped, $entry_tags);
 410
 411 //                              print "<br>$entry_title : $entry_content_unescaped<br>";
 412 //                              print_r($entry_tags);
 413
 414                                 $entry_tags = $entry_tags[1];
 415
 416                                 if (count($entry_tags) > 0) {
 417
 418                                         $result = db_query($link, "SELECT id,int_id
 419                                                 FROM ttrss_entries,ttrss_user_entries
 420                                                 WHERE guid = '$entry_guid'
 421                                                 AND feed_id = '$feed' AND ref_id = id
 422                                                 AND owner_uid = '$owner_uid'");
 423
 424                                         if (db_num_rows($result) == 1) {
 425
 426                                                 $entry_id = db_fetch_result($result, 0, "id");
 427                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
 428
 429                                                 foreach ($entry_tags as $tag) {
 430                                                         $tag = db_escape_string(strtolower($tag));
 431
 432                                                         $tag = str_replace("technorati tag: ", "", $tag);
 433
 434                                                         $result = db_query($link, "SELECT id FROM ttrss_tags
 435                                                                 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
 436                                                                 owner_uid = '$owner_uid' LIMIT 1");
 437
 438         //                                              print db_fetch_result($result, 0, "id");
 439
 440                                                         if ($result && db_num_rows($result) == 0) {
 441
 442         //                                                      print "tagging $entry_id as $tag<br>";
 443
 444                                                                 db_query($link, "INSERT INTO ttrss_tags
 445                                                                         (owner_uid,tag_name,post_int_id)
 446                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
 447                                                         }
 448                                                 }
 449                                         }
 450                                 }
 451                         }
 452
 453                         db_query($link, "UPDATE ttrss_feeds
 454                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 455
 456                 } else {
 457                         $error_msg = db_escape_string(magpie_error());
 458                         db_query($link,
 459                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
 460                                         last_updated = NOW() WHERE id = '$feed'");
 461                 }
 462
 463                 db_query($link, "COMMIT");
 464
 465         }
 466
 467         function print_select($id, $default, $values, $attributes = "") {
 468                 print "<select id=\"$id\" $attributes>";
 469                 foreach ($values as $v) {
 470                         if ($v == $default)
 471                                 $sel = " selected";
 472                          else
 473                                 $sel = "";
 474
 475                         print "<option$sel>$v</option>";
 476                 }
 477                 print "</select>";
 478         }
 479
 480         function is_filtered($title, $content, $link, $filters) {
 481
 482                 if ($filters["title"]) {
 483                         foreach ($filters["title"] as $title_filter) {
 484                                 if (preg_match("/$title_filter/i", $title))
 485                                         return true;
 486                         }
 487                 }
 488
 489                 if ($filters["content"]) {
 490                         foreach ($filters["content"] as $content_filter) {
 491                                 if (preg_match("/$content_filter/i", $content))
 492                                         return true;
 493                         }
 494                 }
 495
 496                 if ($filters["both"]) {
 497                         foreach ($filters["both"] as $filter) {
 498                                 if (preg_match("/$filter/i", $title) || preg_match("/$filter/i", $content))
 499                                         return true;
 500                         }
 501                 }
 502
 503                 if ($filters["link"]) {
 504                         foreach ($filters["link"] as $link_filter) {
 505                                 if (preg_match("/$link_filter/i", $link))
 506                                         return true;
 507                         }
 508                 }
 509
 510                 return false;
 511         }
 512
 513         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link) {
 514
 515                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 516                                 $feed_icon = "<img src=\"$icon_file\">";
 517                 } else {
 518                         $feed_icon = "<img src=\"images/blank_icon.gif\">";
 519                 }
 520
 521                 $feed = "<a href=\"javascript:viewfeed('$feed_id', 0);\">$feed_title</a>";
 522
 523                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 524                 if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 525                         print "$feed_icon";
 526                 }
 527
 528                 print "<span id=\"FEEDN-$feed_id\">$feed</span>";
 529
 530                 if ($unread != 0) {
 531                         $fctr_class = "";
 532                 } else {
 533                         $fctr_class = "class=\"invisible\"";
 534                 }
 535
 536                 print "<span $fctr_class id=\"FEEDCTR-$feed_id\">
 537                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 538
 539                 print "</li>";
 540
 541         }
 542
 543         function getmicrotime() {
 544                 list($usec, $sec) = explode(" ",microtime());
 545                 return ((float)$usec + (float)$sec);
 546         }
 547
 548         function print_radio($id, $default, $values, $attributes = "") {
 549                 foreach ($values as $v) {
 550
 551                         if ($v == $default)
 552                                 $sel = "checked";
 553                          else
 554                                 $sel = "";
 555
 556                         if ($v == "Yes") {
 557                                 $sel .= " value=\"1\"";
 558                         } else {
 559                                 $sel .= " value=\"0\"";
 560                         }
 561
 562                         print "<input type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 563
 564                 }
 565         }
 566
 567         function initialize_user_prefs($link, $uid) {
 568
 569                 $uid = db_escape_string($uid);
 570
 571                 db_query($link, "BEGIN");
 572
 573                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
 574
 575                 $u_result = db_query($link, "SELECT pref_name
 576                         FROM ttrss_user_prefs WHERE owner_uid = '$uid'");
 577
 578                 $active_prefs = array();
 579
 580                 while ($line = db_fetch_assoc($u_result)) {
 581                         array_push($active_prefs, $line["pref_name"]);
 582                 }
 583
 584                 while ($line = db_fetch_assoc($result)) {
 585                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 586 //                              print "adding " . $line["pref_name"] . "<br>";
 587
 588                                 db_query($link, "INSERT INTO ttrss_user_prefs
 589                                         (owner_uid,pref_name,value) VALUES
 590                                         ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 591
 592                         }
 593                 }
 594
 595                 db_query($link, "COMMIT");
 596
 597         }
 598
 599         function authenticate_user($link, $login, $password) {
 600
 601                 $pwd_hash = 'SHA1:' . sha1($password);
 602
 603                 $result = db_query($link, "SELECT id,login,access_level FROM ttrss_users WHERE
 604                         login = '$login' AND (pwd_hash = '$password' OR pwd_hash = '$pwd_hash')");
 605
 606                 if (db_num_rows($result) == 1) {
 607                         $_SESSION["uid"] = db_fetch_result($result, 0, "id");
 608                         $_SESSION["name"] = db_fetch_result($result, 0, "login");
 609                         $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 610
 611                         db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 612                                 $_SESSION["uid"]);
 613
 614                         initialize_user_prefs($link, $_SESSION["uid"]);
 615
 616                         return true;
 617                 }
 618
 619                 return false;
 620
 621         }
 622
 623         function make_password($length = 8) {
 624
 625                 $password = "";
 626                 $possible = "0123456789bcdfghjkmnpqrstvwxyz";
 627
 628                 $i = 0;
 629
 630                 while ($i < $length) {
 631                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 632
 633                         if (!strstr($password, $char)) {
 634                                 $password .= $char;
 635                                 $i++;
 636                         }
 637                 }
 638                 return $password;
 639         }
 640
 641         // this is called after user is created to initialize default feeds, labels
 642         // or whatever else
 643
 644         // user preferences are checked on every login, not here
 645
 646         function initialize_user($link, $uid) {
 647
 648                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 649                         values ('$uid','unread = true', 'Unread articles')");
 650
 651                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 652                         values ('$uid','last_read is null and unread = false', 'Updated articles')");
 653
 654                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 655                         values ('$uid', 'Tiny Tiny RSS - Releases',
 656                         'http://tt-rss.spb.ru/releases.rss')");
 657
 658         }
 659
 660         function logout_user() {
 661                 session_destroy();
 662         }
 663
 664         function login_sequence($link) {
 665                 if (!SINGLE_USER_MODE) {
 666
 667                         if (!USE_HTTP_AUTH) {
 668                                 if (!$_SESSION["uid"]) {
 669                                         header("Location: login.php?rt=tt-rss.php");
 670                                         exit;
 671                                 }
 672                         } else {
 673                                 if (!$_SESSION["uid"]) {
 674                                         if (!$_SERVER["PHP_AUTH_USER"]) {
 675
 676                                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS"');
 677                                                 header('HTTP/1.0 401 Unauthorized');
 678                                                 exit;
 679
 680                                         } else {
 681                                                 $auth_result = authenticate_user($link,
 682                                                         $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
 683
 684                                                 if (!$auth_result) {
 685                                                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS"');
 686                                                         header('HTTP/1.0 401 Unauthorized');
 687                                                         exit;
 688                                                 }
 689                                         }
 690                                 }
 691                         }
 692                 } else {
 693                         $_SESSION["uid"] = 1;
 694                         $_SESSION["name"] = "admin";
 695                         initialize_user_prefs($link, 1);
 696                 }
 697         }
 698 ?>