functions.php

   1 <?
   2
   3         if ($_GET["debug"]) {
   4                 define('DEFAULT_ERROR_LEVEL', E_ALL);
   5         } else {
   6                 define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
   7         }
   8
   9         require_once 'config.php';
  10         require_once 'db-prefs.php';
  11
  12         require_once 'magpierss/rss_utils.inc';
  13
  14         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
  15
  16         function purge_feed($link, $feed_id, $purge_interval) {
  17
  18                 if (DB_TYPE == "pgsql") {
  19                         db_query($link, "DELETE FROM ttrss_user_entries WHERE
  20                                 marked = false AND feed_id = '$feed_id' AND
  21                                 (SELECT date_entered FROM ttrss_entries WHERE
  22                                         id = ref_id) < NOW() - INTERVAL '$purge_interval days'");
  23                 } else {
  24                         db_query($link, "DELETE FROM ttrss_user_entries WHERE
  25                                 marked = false AND feed_id = '$feed_id' AND
  26                                 (SELECT date_entered FROM ttrss_entries WHERE
  27                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
  28                 }
  29         }
  30
  31         function global_purge_old_posts($link, $do_output = false) {
  32
  33                 $result = db_query($link,
  34                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds");
  35
  36                 while ($line = db_fetch_assoc($result)) {
  37
  38                         $feed_id = $line["id"];
  39                         $purge_interval = $line["purge_interval"];
  40                         $owner_uid = $line["owner_uid"];
  41
  42                         if ($purge_interval == 0) {
  43
  44                                 $tmp_result = db_query($link,
  45                                         "SELECT value FROM ttrss_user_prefs WHERE
  46                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
  47
  48                                 if (db_num_rows($tmp_result) != 0) {
  49                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
  50                                 }
  51                         }
  52
  53                         if ($do_output) {
  54                                 print "<feed id='$feed_id' p_intl='$purge_interval'/>";
  55                         }
  56
  57                         if ($purge_interval > 0) {
  58                                 purge_feed($link, $feed_id, $purge_interval);
  59                         }
  60                 }
  61
  62                 // purge orphaned posts in main content table
  63                 db_query($link, "DELETE FROM ttrss_entries WHERE
  64                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
  65
  66         }
  67
  68         function purge_old_posts($link) {
  69
  70                 $user_id = $_SESSION["uid"];
  71
  72                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
  73                         WHERE owner_uid = '$user_id'");
  74
  75                 while ($line = db_fetch_assoc($result)) {
  76
  77                         $feed_id = $line["id"];
  78                         $purge_interval = $line["purge_interval"];
  79
  80                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
  81
  82                         if ($purge_interval > 0) {
  83                                 purge_feed($link, $feed_id, $purge_interval);
  84                         }
  85                 }
  86
  87                 // purge orphaned posts in main content table
  88                 db_query($link, "DELETE FROM ttrss_entries WHERE
  89                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
  90         }
  91
  92         function update_all_feeds($link, $fetch, $user_id = false, $force_daemon = false) {
  93
  94                 if (WEB_DEMO_MODE) return;
  95
  96                 if (!$user_id) {
  97                         $user_id = $_SESSION["uid"];
  98                         purge_old_posts($link);
  99                 }
 100
 101 //              db_query($link, "BEGIN");
 102
 103                 $result = db_query($link, "SELECT feed_url,id,
 104                         substring(last_updated,1,19) as last_updated,
 105                         update_interval FROM ttrss_feeds WHERE owner_uid = '$user_id'
 106                         ORDER BY last_updated DESC");
 107
 108                 while ($line = db_fetch_assoc($result)) {
 109                         $upd_intl = $line["update_interval"];
 110
 111                         if (!$upd_intl || $upd_intl == 0) {
 112                                 $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
 113                         }
 114
 115                         if ($fetch || (!$line["last_updated"] ||
 116                                 time() - strtotime($line["last_updated"]) > ($upd_intl * 60))) {
 117
 118                                 update_rss_feed($link, $line["feed_url"], $line["id"], $force_daemon);
 119                         }
 120                 }
 121
 122 //              db_query($link, "COMMIT");
 123
 124         }
 125
 126         function check_feed_favicon($feed_url, $feed, $link) {
 127                 $feed_url = str_replace("http://", "", $feed_url);
 128                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
 129
 130                 $icon_url = "http://$feed_url/favicon.ico";
 131                 $icon_file = ICONS_DIR . "/$feed.ico";
 132
 133                 if (!file_exists($icon_file)) {
 134
 135                         error_reporting(0);
 136                         $r = fopen($icon_url, "r");
 137                         error_reporting (DEFAULT_ERROR_LEVEL);
 138
 139                         if ($r) {
 140                                 $tmpfname = tempnam("/tmp", "ttrssicon");
 141
 142                                 $t = fopen($tmpfname, "w");
 143
 144                                 while (!feof($r)) {
 145                                         $buf = fread($r, 16384);
 146                                         fwrite($t, $buf);
 147                                 }
 148
 149                                 fclose($r);
 150                                 fclose($t);
 151
 152                                 error_reporting(0);
 153                                 if (!rename($tmpfname, $icon_file)) {
 154                                         unlink($tmpfname);
 155                                 }
 156
 157                                 chmod($icon_file, 0644);
 158
 159                                 error_reporting (DEFAULT_ERROR_LEVEL);
 160
 161                         }
 162                 }
 163         }
 164
 165         function update_rss_feed($link, $feed_url, $feed, $ignore_daemon = false) {
 166
 167                 if (WEB_DEMO_MODE) return;
 168
 169                 if (DAEMON_REFRESH_ONLY && !$_GET["daemon"] && !$ignore_daemon) {
 170                         return;
 171                 }
 172
 173                 $result = db_query($link, "SELECT update_interval,auth_login,auth_pass
 174                         FROM ttrss_feeds WHERE id = '$feed'");
 175
 176                 $auth_login = db_fetch_result($result, 0, "auth_login");
 177                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
 178
 179                 $update_interval = db_fetch_result($result, 0, "update_interval");
 180
 181                 if ($update_interval < 0) { return; }
 182
 183                 $feed = db_escape_string($feed);
 184
 185                 $fetch_url = $feed_url;
 186
 187                 if ($auth_login && $auth_pass) {
 188                         $url_parts = array();
 189                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 190
 191                         if ($url_parts[1] && $url_parts[2]) {
 192                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 193                         }
 194
 195                 }
 196                 error_reporting(0);
 197                 $rss = fetch_rss($fetch_url);
 198
 199                 error_reporting (DEFAULT_ERROR_LEVEL);
 200
 201                 $feed = db_escape_string($feed);
 202
 203                 if ($rss) {
 204
 205                         db_query($link, "BEGIN");
 206
 207                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 208                                 FROM ttrss_feeds WHERE id = '$feed'");
 209
 210                         $registered_title = db_fetch_result($result, 0, "title");
 211                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 212                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 213
 214                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 215
 216                         if (get_pref($link, 'ENABLE_FEED_ICONS', $owner_uid)) {
 217                                 check_feed_favicon($feed_url, $feed, $link);
 218                         }
 219
 220                         if (!$registered_title || $registered_title == "[Unknown]") {
 221                                 $feed_title = db_escape_string($rss->channel["title"]);
 222                                 db_query($link, "UPDATE ttrss_feeds SET
 223                                         title = '$feed_title' WHERE id = '$feed'");
 224                         }
 225
 226                         $site_url = $rss->channel["link"];
 227                         // weird, weird Magpie
 228                         if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 229
 230                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 231                                 db_query($link, "UPDATE ttrss_feeds SET
 232                                         site_url = '$site_url' WHERE id = '$feed'");
 233                         }
 234
 235 //                      print "I: " . $rss->channel["image"]["url"];
 236
 237                         $icon_url = $rss->image["url"];
 238
 239                         if ($icon_url && !$orig_icon_url != db_escape_string($icon_url)) {
 240                                 $icon_url = db_escape_string($icon_url);
 241                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 242                         }
 243
 244
 245                         $filters = array();
 246
 247                         $result = db_query($link, "SELECT reg_exp,
 248                                 (SELECT name FROM ttrss_filter_types
 249                                         WHERE id = filter_type) as name,
 250                                 (SELECT name FROM ttrss_filter_actions
 251                                         WHERE id = action_id) as action
 252                                 FROM ttrss_filters WHERE
 253                                 owner_uid = $owner_uid AND
 254                                 (feed_id IS NULL OR feed_id = '$feed')");
 255
 256                         while ($line = db_fetch_assoc($result)) {
 257                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 258
 259                                 $filter["reg_exp"] = $line["reg_exp"];
 260                                 $filter["action"] = $line["action"];
 261
 262                                 array_push($filters[$line["name"]], $filter);
 263                         }
 264
 265                         $iterator = $rss->items;
 266
 267                         if (!$iterator) $iterator = $rss->entries;
 268                         if (!$iterator) $iterator = $rss;
 269
 270                         foreach ($iterator as $item) {
 271
 272                                 $entry_guid = $item["id"];
 273
 274                                 if (!$entry_guid) $entry_guid = $item["guid"];
 275                                 if (!$entry_guid) $entry_guid = $item["link"];
 276
 277                                 if (!$entry_guid) continue;
 278
 279                                 $entry_timestamp = "";
 280
 281                                 $rss_2_date = $item['pubdate'];
 282                                 $rss_1_date = $item['dc']['date'];
 283                                 $atom_date = $item['issued'];
 284                                 if (!$atom_date) $atom_date = $item['updated'];
 285
 286                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 287                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 288                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 289
 290                                 if ($entry_timestamp == "") {
 291                                         $entry_timestamp = time();
 292                                         $no_orig_date = 'true';
 293                                 } else {
 294                                         $no_orig_date = 'false';
 295                                 }
 296
 297                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 298
 299                                 $entry_title = $item["title"];
 300
 301                                 // strange Magpie workaround
 302                                 $entry_link = $item["link_"];
 303                                 if (!$entry_link) $entry_link = $item["link"];
 304
 305                                 if (!$entry_title) continue;
 306                                 if (!$entry_link) continue;
 307
 308                                 $entry_content = $item["content:escaped"];
 309
 310                                 if (!$entry_content) $entry_content = $item["content:encoded"];
 311                                 if (!$entry_content) $entry_content = $item["content"];
 312                                 if (!$entry_content) $entry_content = $item["summary"];
 313                                 if (!$entry_content) $entry_content = $item["description"];
 314
 315 //                              if (!$entry_content) continue;
 316
 317                                 // WTF
 318                                 if (is_array($entry_content)) {
 319                                         $entry_content = $entry_content["encoded"];
 320                                         if (!$entry_content) $entry_content = $entry_content["escaped"];
 321                                 }
 322
 323 //                              print_r($item);
 324 //                              print_r(htmlspecialchars($entry_content));
 325 //                              print "<br>";
 326
 327                                 $entry_content_unescaped = $entry_content;
 328                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 329
 330                                 $entry_comments = $item["comments"];
 331
 332                                 $entry_guid = db_escape_string($entry_guid);
 333
 334                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 335                                         WHERE guid = '$entry_guid'");
 336
 337                                 $entry_content = db_escape_string($entry_content);
 338                                 $entry_title = db_escape_string($entry_title);
 339                                 $entry_link = db_escape_string($entry_link);
 340                                 $entry_comments = db_escape_string($entry_comments);
 341
 342                                 $num_comments = db_escape_string($item["slash"]["comments"]);
 343
 344                                 if (!$num_comments) $num_comments = 0;
 345
 346                                 if (db_num_rows($result) == 0) {
 347
 348                                         // base post entry does not exist, create it
 349
 350                                         $result = db_query($link,
 351                                                 "INSERT INTO ttrss_entries
 352                                                         (title,
 353                                                         guid,
 354                                                         link,
 355                                                         updated,
 356                                                         content,
 357                                                         content_hash,
 358                                                         no_orig_date,
 359                                                         date_entered,
 360                                                         comments,
 361                                                         num_comments)
 362                                                 VALUES
 363                                                         ('$entry_title',
 364                                                         '$entry_guid',
 365                                                         '$entry_link',
 366                                                         '$entry_timestamp_fmt',
 367                                                         '$entry_content',
 368                                                         '$content_hash',
 369                                                         $no_orig_date,
 370                                                         NOW(),
 371                                                         '$entry_comments',
 372                                                         '$num_comments')");
 373                                 }
 374
 375                                 // now it should exist, if not - bad luck then
 376
 377                                 $result = db_query($link, "SELECT
 378                                                 id,content_hash,no_orig_date,title,
 379                                                 substring(updated,1,19) as updated,
 380                                                 num_comments
 381                                         FROM
 382                                                 ttrss_entries
 383                                         WHERE guid = '$entry_guid'");
 384
 385                                 if (db_num_rows($result) == 1) {
 386
 387                                         // this will be used below in update handler
 388                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 389                                         $orig_title = db_fetch_result($result, 0, "title");
 390                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
 391
 392                                         $ref_id = db_fetch_result($result, 0, "id");
 393
 394                                         // check for user post link to main table
 395
 396                                         // do we allow duplicate posts with same GUID in different feeds?
 397                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid)) {
 398                                                 $dupcheck_qpart = "AND feed_id = '$feed'";
 399                                         } else {
 400                                                 $dupcheck_qpart = "";
 401                                         }
 402
 403 //                                      error_reporting(0);
 404
 405                                         $filter_name = get_filter_name($entry_title, $entry_content,
 406                                                 $entry_link, $filters);
 407
 408                                         if ($filter_name == "filter") {
 409                                                 continue;
 410                                         }
 411
 412 //                                      error_reporting (DEFAULT_ERROR_LEVEL);
 413
 414                                         $result = db_query($link,
 415                                                 "SELECT ref_id FROM ttrss_user_entries WHERE
 416                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
 417                                                         $dupcheck_qpart");
 418
 419                                         // okay it doesn't exist - create user entry
 420                                         if (db_num_rows($result) == 0) {
 421
 422                                                 if ($filter_name != 'catchup') {
 423                                                         $unread = 'true';
 424                                                         $last_read_qpart = 'NULL';
 425                                                 } else {
 426                                                         $unread = 'false';
 427                                                         $last_read_qpart = 'NOW()';
 428                                                 }
 429
 430                                                 $result = db_query($link,
 431                                                         "INSERT INTO ttrss_user_entries
 432                                                                 (ref_id, owner_uid, feed_id, unread, last_read)
 433                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
 434                                                                 $last_read_qpart)");
 435                                         }
 436
 437                                         $post_needs_update = false;
 438
 439                                         if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE", $owner_uid) &&
 440                                                 ($content_hash != $orig_content_hash)) {
 441                                                 $post_needs_update = true;
 442                                         }
 443
 444                                         if ($orig_title != $entry_title) {
 445                                                 $post_needs_update = true;
 446                                         }
 447
 448                                         if ($orig_num_comments != $num_comments) {
 449                                                 $post_needs_update = true;
 450                                         }
 451
 452 //                                      this doesn't seem to be very reliable
 453 //
 454 //                                      if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 455 //                                              $post_needs_update = true;
 456 //                                      }
 457
 458                                         // if post needs update, update it and mark all user entries
 459                                         // linking to this post as updated
 460                                         if ($post_needs_update) {
 461
 462 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
 463
 464                                                 db_query($link, "UPDATE ttrss_entries
 465                                                         SET title = '$entry_title', content = '$entry_content',
 466                                                                 num_comments = '$num_comments'
 467                                                         WHERE id = '$ref_id'");
 468
 469                                                 db_query($link, "UPDATE ttrss_user_entries
 470                                                         SET last_read = null WHERE ref_id = '$ref_id' AND unread = false");
 471
 472                                         }
 473                                 }
 474
 475                                 /* taaaags */
 476                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 477
 478                                 $entry_tags = null;
 479
 480                                 preg_match_all("/<a.*?href=.http:\/\/.*?technorati.com\/tag\/([^\"\'>]+)/i",
 481                                         $entry_content_unescaped, $entry_tags);
 482
 483 //                              print "<br>$entry_title : $entry_content_unescaped<br>";
 484 //                              print_r($entry_tags);
 485 //                              print "<br>";
 486
 487                                 $entry_tags = $entry_tags[1];
 488
 489                                 if (count($entry_tags) > 0) {
 490
 491                                         $result = db_query($link, "SELECT id,int_id
 492                                                 FROM ttrss_entries,ttrss_user_entries
 493                                                 WHERE guid = '$entry_guid'
 494                                                 AND feed_id = '$feed' AND ref_id = id
 495                                                 AND owner_uid = '$owner_uid'");
 496
 497                                         if (db_num_rows($result) == 1) {
 498
 499                                                 $entry_id = db_fetch_result($result, 0, "id");
 500                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
 501
 502                                                 foreach ($entry_tags as $tag) {
 503                                                         $tag = db_escape_string(strtolower($tag));
 504
 505                                                         $tag = str_replace("+", " ", $tag);
 506                                                         $tag = str_replace("technorati tag: ", "", $tag);
 507
 508                                                         $result = db_query($link, "SELECT id FROM ttrss_tags
 509                                                                 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
 510                                                                 owner_uid = '$owner_uid' LIMIT 1");
 511
 512         //                                              print db_fetch_result($result, 0, "id");
 513
 514                                                         if ($result && db_num_rows($result) == 0) {
 515
 516         //                                                      print "tagging $entry_id as $tag<br>";
 517
 518                                                                 db_query($link, "INSERT INTO ttrss_tags
 519                                                                         (owner_uid,tag_name,post_int_id)
 520                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
 521                                                         }
 522                                                 }
 523                                         }
 524                                 }
 525                         }
 526
 527                         db_query($link, "UPDATE ttrss_feeds
 528                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 529
 530                         db_query($link, "COMMIT");
 531
 532                 } else {
 533                         $error_msg = db_escape_string(magpie_error());
 534                         db_query($link,
 535                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
 536                                         last_updated = NOW() WHERE id = '$feed'");
 537                 }
 538
 539         }
 540
 541         function print_select($id, $default, $values, $attributes = "") {
 542                 print "<select id=\"$id\" $attributes>";
 543                 foreach ($values as $v) {
 544                         if ($v == $default)
 545                                 $sel = " selected";
 546                          else
 547                                 $sel = "";
 548
 549                         print "<option$sel>$v</option>";
 550                 }
 551                 print "</select>";
 552         }
 553
 554         function get_filter_name($title, $content, $link, $filters) {
 555
 556                 if ($filters["title"]) {
 557                         foreach ($filters["title"] as $filter) {
 558                                 $reg_exp = $filter["reg_exp"];
 559                                 if (preg_match("/$reg_exp/i", $title)) {
 560                                         return $filter["action"];
 561                                 }
 562                         }
 563                 }
 564
 565                 if ($filters["content"]) {
 566                         foreach ($filters["content"] as $filter) {
 567                                 $reg_exp = $filter["reg_exp"];
 568                                 if (preg_match("/$reg_exp/i", $content)) {
 569                                         return $filter["action"];
 570                                 }
 571                         }
 572                 }
 573
 574                 if ($filters["both"]) {
 575                         foreach ($filters["both"] as $filter) {
 576                                 $reg_exp = $filter["reg_exp"];
 577                                 if (preg_match("/$reg_exp/i", $title) ||
 578                                         preg_match("/$reg_exp/i", $content)) {
 579                                         return $filter["action"];
 580                                 }
 581                         }
 582                 }
 583
 584                 if ($filters["link"]) {
 585                         $reg_exp = $filter["reg_exp"];
 586                         foreach ($filters["link"] as $filter) {
 587                                 $reg_exp = $filter["reg_exp"];
 588                                 if (preg_match("/$reg_exp/i", $link)) {
 589                                         return $filter["action"];
 590                                 }
 591                         }
 592                 }
 593
 594                 return false;
 595         }
 596
 597         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link) {
 598
 599                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 600                                 $feed_icon = "<img id=\"FIMG-$feed_id\" src=\"$icon_file\">";
 601                 } else {
 602                         $feed_icon = "<img id=\"FIMG-$feed_id\" src=\"images/blank_icon.gif\">";
 603                 }
 604
 605                 $feed = "<a href=\"javascript:viewfeed('$feed_id', 0);\">$feed_title</a>";
 606
 607                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 608                 if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 609                         print "$feed_icon";
 610                 }
 611
 612                 print "<span id=\"FEEDN-$feed_id\">$feed</span>";
 613
 614                 if ($unread != 0) {
 615                         $fctr_class = "";
 616                 } else {
 617                         $fctr_class = "class=\"invisible\"";
 618                 }
 619
 620                 print "<span $fctr_class id=\"FEEDCTR-$feed_id\">
 621                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 622
 623                 print "</li>";
 624
 625         }
 626
 627         function getmicrotime() {
 628                 list($usec, $sec) = explode(" ",microtime());
 629                 return ((float)$usec + (float)$sec);
 630         }
 631
 632         function print_radio($id, $default, $values, $attributes = "") {
 633                 foreach ($values as $v) {
 634
 635                         if ($v == $default)
 636                                 $sel = "checked";
 637                          else
 638                                 $sel = "";
 639
 640                         if ($v == "Yes") {
 641                                 $sel .= " value=\"1\"";
 642                         } else {
 643                                 $sel .= " value=\"0\"";
 644                         }
 645
 646                         print "<input type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 647
 648                 }
 649         }
 650
 651         function initialize_user_prefs($link, $uid) {
 652
 653                 $uid = db_escape_string($uid);
 654
 655                 db_query($link, "BEGIN");
 656
 657                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
 658
 659                 $u_result = db_query($link, "SELECT pref_name
 660                         FROM ttrss_user_prefs WHERE owner_uid = '$uid'");
 661
 662                 $active_prefs = array();
 663
 664                 while ($line = db_fetch_assoc($u_result)) {
 665                         array_push($active_prefs, $line["pref_name"]);
 666                 }
 667
 668                 while ($line = db_fetch_assoc($result)) {
 669                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 670 //                              print "adding " . $line["pref_name"] . "<br>";
 671
 672                                 db_query($link, "INSERT INTO ttrss_user_prefs
 673                                         (owner_uid,pref_name,value) VALUES
 674                                         ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 675
 676                         }
 677                 }
 678
 679                 db_query($link, "COMMIT");
 680
 681         }
 682
 683         function authenticate_user($link, $login, $password) {
 684
 685                 $pwd_hash = 'SHA1:' . sha1($password);
 686
 687                 $result = db_query($link, "SELECT id,login,access_level FROM ttrss_users WHERE
 688                         login = '$login' AND (pwd_hash = '$password' OR pwd_hash = '$pwd_hash')");
 689
 690                 if (db_num_rows($result) == 1) {
 691                         $_SESSION["uid"] = db_fetch_result($result, 0, "id");
 692                         $_SESSION["name"] = db_fetch_result($result, 0, "login");
 693                         $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 694
 695                         db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 696                                 $_SESSION["uid"]);
 697
 698                         $user_theme = get_user_theme_path($link);
 699
 700                         $_SESSION["theme"] = $user_theme;
 701
 702                         initialize_user_prefs($link, $_SESSION["uid"]);
 703
 704                         return true;
 705                 }
 706
 707                 return false;
 708
 709         }
 710
 711         function make_password($length = 8) {
 712
 713                 $password = "";
 714                 $possible = "0123456789bcdfghjkmnpqrstvwxyz";
 715
 716                 $i = 0;
 717
 718                 while ($i < $length) {
 719                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 720
 721                         if (!strstr($password, $char)) {
 722                                 $password .= $char;
 723                                 $i++;
 724                         }
 725                 }
 726                 return $password;
 727         }
 728
 729         // this is called after user is created to initialize default feeds, labels
 730         // or whatever else
 731
 732         // user preferences are checked on every login, not here
 733
 734         function initialize_user($link, $uid) {
 735
 736                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 737                         values ('$uid','unread = true', 'Unread articles')");
 738
 739                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 740                         values ('$uid','last_read is null and unread = false', 'Updated articles')");
 741
 742                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 743                         values ('$uid', 'Tiny Tiny RSS: New Releases',
 744                         'http://tt-rss.spb.ru/releases.rss')");
 745
 746         }
 747
 748         function logout_user() {
 749                 session_destroy();
 750         }
 751
 752         function get_script_urlpath() {
 753                 return preg_replace('/\/[^\/]*$/', "", $_SERVER["REQUEST_URI"]);
 754         }
 755
 756         function get_login_redirect() {
 757                 $server = $_SERVER["SERVER_NAME"];
 758
 759                 if (ENABLE_LOGIN_SSL) {
 760                         $protocol = "https";
 761                 } else {
 762                         $protocol = "http";
 763                 }
 764
 765                 $url_path = get_script_urlpath();
 766
 767                 $redirect_uri = "$protocol://$server$url_path/login.php";
 768
 769                 return $redirect_uri;
 770         }
 771
 772         function login_sequence($link) {
 773                 if (!SINGLE_USER_MODE) {
 774
 775                         if (!USE_HTTP_AUTH) {
 776                                 if (!$_SESSION["uid"]) {
 777                                         $redirect_uri = get_login_redirect();
 778                                         $return_to = preg_replace('/.*?\//', '', $_SERVER["REQUEST_URI"]);
 779                                         header("Location: $redirect_uri?rt=$return_to");
 780                                         exit;
 781                                 }
 782                         } else {
 783                                 if (!$_SESSION["uid"]) {
 784                                         if (!$_SERVER["PHP_AUTH_USER"]) {
 785
 786                                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS"');
 787                                                 header('HTTP/1.0 401 Unauthorized');
 788                                                 exit;
 789
 790                                         } else {
 791                                                 $auth_result = authenticate_user($link,
 792                                                         $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
 793
 794                                                 if (!$auth_result) {
 795                                                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS"');
 796                                                         header('HTTP/1.0 401 Unauthorized');
 797                                                         exit;
 798                                                 }
 799                                         }
 800                                 }
 801                         }
 802                 } else {
 803                         $_SESSION["uid"] = 1;
 804                         $_SESSION["name"] = "admin";
 805                         initialize_user_prefs($link, 1);
 806                 }
 807         }
 808
 809         function truncate_string($str, $max_len) {
 810                 if (strlen($str) > $max_len) {
 811                         return substr($str, 0, $max_len) . "...";
 812                 } else {
 813                         return $str;
 814                 }
 815         }
 816
 817         function get_user_theme_path($link) {
 818                 $result = db_query($link, "SELECT theme_path FROM ttrss_themes
 819                         WHERE id = (SELECT theme_id FROM ttrss_users
 820                                 WHERE id = " . $_SESSION["uid"] . ")");
 821                 if (db_num_rows($result) != 0) {
 822                         return db_fetch_result($result, 0, "theme_path");
 823                 } else {
 824                         return null;
 825                 }
 826         }
 827
 828         function smart_date_time($timestamp) {
 829                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
 830                         return date("G:i", $timestamp);
 831                 } else if (date("Y", $timestamp) == date("Y")) {
 832                         return date("M d, G:i", $timestamp);
 833                 } else {
 834                         return date("Y/m/d G:i");
 835                 }
 836         }
 837
 838         function smart_date($timestamp) {
 839                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
 840                         return "Today";
 841                 } else if (date("Y", $timestamp) == date("Y")) {
 842                         return date("D m", $timestamp);
 843                 } else {
 844                         return date("Y/m/d");
 845                 }
 846         }
 847
 848         function sql_bool_to_string($s) {
 849                 if ($s == "t" || $s == "1") {
 850                         return "true";
 851                 } else {
 852                         return "false";
 853                 }
 854         }
 855
 856         function toggleEvenOdd($a) {
 857                 if ($a == "even")
 858                         return "odd";
 859                 else
 860                         return "even";
 861         }
 862 ?>