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 (get_pref($link, 'DAEMON_REFRESH_ONLY', $user_id)) {
  95                         if (!$_GET["daemon"]) {
  96                                 return;
  97                         }
  98                 }
  99
 100                 db_query($link, "BEGIN");
 101
 102                 $result = db_query($link, "SELECT feed_url,id,
 103                         substring(last_updated,1,19) as last_updated,
 104                         update_interval FROM ttrss_feeds WHERE owner_uid = '$user_id'");
 105
 106                 while ($line = db_fetch_assoc($result)) {
 107                         $upd_intl = $line["update_interval"];
 108
 109                         if (!$upd_intl || $upd_intl == 0) {
 110                                 $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
 111                         }
 112
 113                         if ($fetch || (!$line["last_updated"] ||
 114                                 time() - strtotime($line["last_updated"]) > ($upd_intl * 60))) {
 115
 116                                 update_rss_feed($link, $line["feed_url"], $line["id"]);
 117                         }
 118                 }
 119
 120                 db_query($link, "COMMIT");
 121
 122         }
 123
 124         function check_feed_favicon($feed_url, $feed, $link) {
 125                 $feed_url = str_replace("http://", "", $feed_url);
 126                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
 127
 128                 $icon_url = "http://$feed_url/favicon.ico";
 129                 $icon_file = ICONS_DIR . "/$feed.ico";
 130
 131                 if (!file_exists($icon_file)) {
 132
 133                         error_reporting(0);
 134                         $r = fopen($icon_url, "r");
 135                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 136
 137                         if ($r) {
 138                                 $tmpfname = tempnam("/tmp", "ttrssicon");
 139
 140                                 $t = fopen($tmpfname, "w");
 141
 142                                 while (!feof($r)) {
 143                                         $buf = fread($r, 16384);
 144                                         fwrite($t, $buf);
 145                                 }
 146
 147                                 fclose($r);
 148                                 fclose($t);
 149
 150                                 error_reporting(0);
 151                                 if (!rename($tmpfname, $icon_file)) {
 152                                         unlink($tmpfname);
 153                                 }
 154
 155                                 chmod($icon_file, 0644);
 156
 157                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 158
 159                         }
 160                 }
 161         }
 162
 163         function update_rss_feed($link, $feed_url, $feed) {
 164
 165                 if (WEB_DEMO_MODE) return;
 166
 167                 $feed = db_escape_string($feed);
 168
 169                 error_reporting(0);
 170                 $rss = fetch_rss($feed_url);
 171
 172                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 173
 174                 db_query($link, "BEGIN");
 175
 176                 $feed = db_escape_string($feed);
 177
 178                 if ($rss) {
 179
 180                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 181                                 FROM ttrss_feeds WHERE id = '$feed'");
 182
 183                         $registered_title = db_fetch_result($result, 0, "title");
 184                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 185                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 186
 187                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 188
 189                         if (get_pref($link, 'ENABLE_FEED_ICONS', $owner_uid)) {
 190                                 check_feed_favicon($feed_url, $feed, $link);
 191                         }
 192
 193                         if (!$registered_title) {
 194                                 $feed_title = db_escape_string($rss->channel["title"]);
 195                                 db_query($link, "UPDATE ttrss_feeds SET
 196                                         title = '$feed_title' WHERE id = '$feed'");
 197                         }
 198
 199                         $site_url = $rss->channel["link"];
 200
 201                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 202                                 $site_url = db_escape_string($rss->channel["link"]);
 203                                 db_query($link, "UPDATE ttrss_feeds SET
 204                                         site_url = '$site_url' WHERE id = '$feed'");
 205                         }
 206
 207 //                      print "I: " . $rss->channel["image"]["url"];
 208
 209                         $icon_url = $rss->image["url"];
 210
 211                         if ($icon_url && !$orig_icon_url != db_escape_string($icon_url)) {
 212                                 $icon_url = db_escape_string($icon_url);
 213                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 214                         }
 215
 216
 217                         $filters = array();
 218
 219                         $result = db_query($link, "SELECT reg_exp,
 220                                 (SELECT name FROM ttrss_filter_types
 221                                         WHERE id = filter_type) as name
 222                                 FROM ttrss_filters WHERE
 223                                 owner_uid = $owner_uid AND
 224                                 (feed_id IS NULL OR feed_id = '$feed')");
 225
 226                         while ($line = db_fetch_assoc($result)) {
 227                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 228                                 array_push($filters[$line["name"]], $line["reg_exp"]);
 229                         }
 230
 231                         foreach ($rss->items as $item) {
 232
 233                                 $entry_guid = $item["id"];
 234
 235                                 if (!$entry_guid) $entry_guid = $item["guid"];
 236                                 if (!$entry_guid) $entry_guid = $item["link"];
 237
 238                                 if (!$entry_guid) continue;
 239
 240                                 $entry_timestamp = "";
 241
 242                                 $rss_2_date = $item['pubdate'];
 243                                 $rss_1_date = $item['dc']['date'];
 244                                 $atom_date = $item['issued'];
 245
 246                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 247                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 248                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 249
 250                                 if ($entry_timestamp == "") {
 251                                         $entry_timestamp = time();
 252                                         $no_orig_date = 'true';
 253                                 } else {
 254                                         $no_orig_date = 'false';
 255                                 }
 256
 257                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 258
 259                                 $entry_title = $item["title"];
 260                                 $entry_link = $item["link"];
 261
 262                                 if (!$entry_title) continue;
 263                                 if (!$entry_link) continue;
 264
 265                                 $entry_content = $item["content:escaped"];
 266
 267                                 if (!$entry_content) $entry_content = $item["content:encoded"];
 268                                 if (!$entry_content) $entry_content = $item["content"];
 269                                 if (!$entry_content) $entry_content = $item["description"];
 270
 271 //                              if (!$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", $entry_content,
 409                                         $entry_tags);
 410
 411                                 $entry_tags = $entry_tags[1];
 412
 413                                 if (count($entry_tags) > 0) {
 414
 415                                         $result = db_query($link, "SELECT id,int_id
 416                                                 FROM ttrss_entries,ttrss_user_entries
 417                                                 WHERE guid = '$entry_guid'
 418                                                 AND feed_id = '$feed' AND ref_id = id
 419                                                 AND owner_uid = '$owner_uid'");
 420
 421                                         if (db_num_rows($result) == 1) {
 422
 423                                                 $entry_id = db_fetch_result($result, 0, "id");
 424                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
 425
 426                                                 foreach ($entry_tags as $tag) {
 427                                                         $tag = db_escape_string(strtolower($tag));
 428
 429                                                         $tag = str_replace("technorati tag: ", "", $tag);
 430
 431                                                         $result = db_query($link, "SELECT id FROM ttrss_tags
 432                                                                 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
 433                                                                 owner_uid = '$owner_uid' LIMIT 1");
 434
 435         //                                              print db_fetch_result($result, 0, "id");
 436
 437                                                         if ($result && db_num_rows($result) == 0) {
 438
 439         //                                                      print "tagging $entry_id as $tag<br>";
 440
 441                                                                 db_query($link, "INSERT INTO ttrss_tags
 442                                                                         (owner_uid,tag_name,post_int_id)
 443                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
 444                                                         }
 445                                                 }
 446                                         }
 447                                 }
 448                         }
 449
 450                         db_query($link, "UPDATE ttrss_feeds
 451                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 452
 453                 } else {
 454                         $error_msg = db_escape_string(magpie_error());
 455                         db_query($link,
 456                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
 457                                         last_updated = NOW() WHERE id = '$feed'");
 458                 }
 459
 460                 db_query($link, "COMMIT");
 461
 462         }
 463
 464         function print_select($id, $default, $values, $attributes = "") {
 465                 print "<select id=\"$id\" $attributes>";
 466                 foreach ($values as $v) {
 467                         if ($v == $default)
 468                                 $sel = " selected";
 469                          else
 470                                 $sel = "";
 471
 472                         print "<option$sel>$v</option>";
 473                 }
 474                 print "</select>";
 475         }
 476
 477         function is_filtered($title, $content, $link, $filters) {
 478
 479                 if ($filters["title"]) {
 480                         foreach ($filters["title"] as $title_filter) {
 481                                 if (preg_match("/$title_filter/i", $title))
 482                                         return true;
 483                         }
 484                 }
 485
 486                 if ($filters["content"]) {
 487                         foreach ($filters["content"] as $content_filter) {
 488                                 if (preg_match("/$content_filter/i", $content))
 489                                         return true;
 490                         }
 491                 }
 492
 493                 if ($filters["both"]) {
 494                         foreach ($filters["both"] as $filter) {
 495                                 if (preg_match("/$filter/i", $title) || preg_match("/$filter/i", $content))
 496                                         return true;
 497                         }
 498                 }
 499
 500                 if ($filters["link"]) {
 501                         foreach ($filters["link"] as $link_filter) {
 502                                 if (preg_match("/$link_filter/i", $link))
 503                                         return true;
 504                         }
 505                 }
 506
 507                 return false;
 508         }
 509
 510         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link) {
 511
 512                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 513                                 $feed_icon = "<img src=\"$icon_file\">";
 514                 } else {
 515                         $feed_icon = "<img src=\"images/blank_icon.gif\">";
 516                 }
 517
 518                 $feed = "<a href=\"javascript:viewfeed('$feed_id', 0);\">$feed_title</a>";
 519
 520                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 521                 if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 522                         print "$feed_icon";
 523                 }
 524
 525                 print "<span id=\"FEEDN-$feed_id\">$feed</span>";
 526
 527                 if ($unread != 0) {
 528                         $fctr_class = "";
 529                 } else {
 530                         $fctr_class = "class=\"invisible\"";
 531                 }
 532
 533                 print "<span $fctr_class id=\"FEEDCTR-$feed_id\">
 534                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 535
 536                 print "</li>";
 537
 538         }
 539
 540         function getmicrotime() {
 541                 list($usec, $sec) = explode(" ",microtime());
 542                 return ((float)$usec + (float)$sec);
 543         }
 544
 545         function print_radio($id, $default, $values, $attributes = "") {
 546                 foreach ($values as $v) {
 547
 548                         if ($v == $default)
 549                                 $sel = "checked";
 550                          else
 551                                 $sel = "";
 552
 553                         if ($v == "Yes") {
 554                                 $sel .= " value=\"1\"";
 555                         } else {
 556                                 $sel .= " value=\"0\"";
 557                         }
 558
 559                         print "<input type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 560
 561                 }
 562         }
 563
 564         function initialize_user_prefs($link, $uid) {
 565
 566                 $uid = db_escape_string($uid);
 567
 568                 db_query($link, "BEGIN");
 569
 570                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
 571
 572                 $u_result = db_query($link, "SELECT pref_name
 573                         FROM ttrss_user_prefs WHERE owner_uid = '$uid'");
 574
 575                 $active_prefs = array();
 576
 577                 while ($line = db_fetch_assoc($u_result)) {
 578                         array_push($active_prefs, $line["pref_name"]);
 579                 }
 580
 581                 while ($line = db_fetch_assoc($result)) {
 582                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 583 //                              print "adding " . $line["pref_name"] . "<br>";
 584
 585                                 db_query($link, "INSERT INTO ttrss_user_prefs
 586                                         (owner_uid,pref_name,value) VALUES
 587                                         ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 588
 589                         }
 590                 }
 591
 592                 db_query($link, "COMMIT");
 593
 594         }
 595
 596         function authenticate_user($link, $login, $password) {
 597
 598                 $pwd_hash = 'SHA1:' . sha1($password);
 599
 600                 $result = db_query($link, "SELECT id,login,access_level FROM ttrss_users WHERE
 601                         login = '$login' AND (pwd_hash = '$password' OR pwd_hash = '$pwd_hash')");
 602
 603                 if (db_num_rows($result) == 1) {
 604                         $_SESSION["uid"] = db_fetch_result($result, 0, "id");
 605                         $_SESSION["name"] = db_fetch_result($result, 0, "login");
 606                         $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 607
 608                         db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 609                                 $_SESSION["uid"]);
 610
 611                         return true;
 612                 }
 613
 614                 return false;
 615
 616         }
 617
 618         function http_authenticate_user($link, $force_logout) {
 619
 620                 if (!$_SERVER['PHP_AUTH_USER'] || $force_logout) {
 621
 622                         if ($force_logout) logout_user();
 623
 624                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS"');
 625                         header('HTTP/1.0 401 Unauthorized');
 626                         print "<h1>401 Unathorized</h1>";
 627
 628                         exit;
 629
 630                 } else {
 631
 632                         $login = db_escape_string($_SERVER['PHP_AUTH_USER']);
 633                         $password = db_escape_string($_SERVER['PHP_AUTH_PW']);
 634
 635                         return authenticate_user($link, $login, $password);
 636                 }
 637         }
 638
 639         function make_password($length = 8) {
 640
 641                 $password = "";
 642                 $possible = "0123456789bcdfghjkmnpqrstvwxyz";
 643
 644                 $i = 0;
 645
 646                 while ($i < $length) {
 647                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 648
 649                         if (!strstr($password, $char)) {
 650                                 $password .= $char;
 651                                 $i++;
 652                         }
 653                 }
 654                 return $password;
 655         }
 656
 657         // this is called after user is created to initialize default feeds, labels
 658         // or whatever else
 659
 660         // user preferences are checked on every login, not here
 661
 662         function initialize_user($link, $uid) {
 663
 664                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 665                         values ('$uid','unread = true', 'Unread articles')");
 666
 667                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 668                         values ('$uid','last_read is null and unread = false', 'Updated articles')");
 669
 670                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 671                         values ('$uid', 'Tiny Tiny RSS Dev. Feed',
 672                         'http://bah.spb.su/darcsweb/darcsweb.cgi?r=tt-rss;a=rss')");
 673
 674                 }
 675
 676         function logout_user() {
 677                 $_SESSION["uid"] = null;
 678                 $_SESSION["name"] = null;
 679                 $_SESSION["access_level"] = null;
 680                 session_destroy();
 681         }
 682
 683         function login_sequence($link) {
 684                 if (!SINGLE_USER_MODE) {
 685
 686                         if (!USE_HTTP_AUTH) {
 687                                 if (!$_SESSION["uid"]) {
 688                                         header("Location: login.php?rt=tt-rss.php");
 689                                         exit;
 690                                 }
 691                         } else {
 692                                 if (!http_authenticate_user($link, false)) {
 693                                         exit;
 694                                 }
 695                         }
 696                 } else {
 697                         $_SESSION["uid"] = 1;
 698                         $_SESSION["name"] = "admin";
 699                         initialize_user_prefs($link, 1);
 700                 }
 701         }
 702 ?>