functions.php

   1 <?
   2
   3         if ($_GET["debug"]) {
   4                 define('DEFAULT_ERROR_LEVEL', E_ALL);
   5         } else {
   6                 define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
   7         }
   8
   9         require_once 'config.php';
  10         require_once 'db-prefs.php';
  11         require_once 'compat.php';
  12
  13         require_once 'magpierss/rss_utils.inc';
  14
  15         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
  16
  17         function purge_feed($link, $feed_id, $purge_interval) {
  18
  19                 if (DB_TYPE == "pgsql") {
  20                         db_query($link, "DELETE FROM ttrss_user_entries WHERE
  21                                 marked = false AND feed_id = '$feed_id' AND
  22                                 (SELECT date_entered FROM ttrss_entries WHERE
  23                                         id = ref_id) < NOW() - INTERVAL '$purge_interval days'");
  24                 } else {
  25                         db_query($link, "DELETE FROM ttrss_user_entries WHERE
  26                                 marked = false AND feed_id = '$feed_id' AND
  27                                 (SELECT date_entered FROM ttrss_entries WHERE
  28                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
  29                 }
  30         }
  31
  32         function global_purge_old_posts($link, $do_output = false) {
  33
  34                 $result = db_query($link,
  35                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds");
  36
  37                 while ($line = db_fetch_assoc($result)) {
  38
  39                         $feed_id = $line["id"];
  40                         $purge_interval = $line["purge_interval"];
  41                         $owner_uid = $line["owner_uid"];
  42
  43                         if ($purge_interval == 0) {
  44
  45                                 $tmp_result = db_query($link,
  46                                         "SELECT value FROM ttrss_user_prefs WHERE
  47                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
  48
  49                                 if (db_num_rows($tmp_result) != 0) {
  50                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
  51                                 }
  52                         }
  53
  54                         if ($do_output) {
  55                                 print "<feed id='$feed_id' p_intl='$purge_interval'/>";
  56                         }
  57
  58                         if ($purge_interval > 0) {
  59                                 purge_feed($link, $feed_id, $purge_interval);
  60                         }
  61                 }
  62
  63                 // purge orphaned posts in main content table
  64                 db_query($link, "DELETE FROM ttrss_entries WHERE
  65                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
  66
  67         }
  68
  69         function purge_old_posts($link) {
  70
  71                 $user_id = $_SESSION["uid"];
  72
  73                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
  74                         WHERE owner_uid = '$user_id'");
  75
  76                 while ($line = db_fetch_assoc($result)) {
  77
  78                         $feed_id = $line["id"];
  79                         $purge_interval = $line["purge_interval"];
  80
  81                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
  82
  83                         if ($purge_interval > 0) {
  84                                 purge_feed($link, $feed_id, $purge_interval);
  85                         }
  86                 }
  87
  88                 // purge orphaned posts in main content table
  89                 db_query($link, "DELETE FROM ttrss_entries WHERE
  90                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
  91         }
  92
  93         function update_all_feeds($link, $fetch, $user_id = false, $force_daemon = false) {
  94
  95                 if (WEB_DEMO_MODE) return;
  96
  97                 if (!$user_id) {
  98                         $user_id = $_SESSION["uid"];
  99                         purge_old_posts($link);
 100                 }
 101
 102 //              db_query($link, "BEGIN");
 103
 104                 if (MAX_UPDATE_TIME > 0) {
 105                         if (DB_TYPE == "mysql") {
 106                                 $q_order = "RAND()";
 107                         } else {
 108                                 $q_order = "RANDOM()";
 109                         }
 110                 } else {
 111                         $q_order = "last_updated DESC";
 112                 }
 113
 114                 $result = db_query($link, "SELECT feed_url,id,
 115                         SUBSTRING(last_updated,1,19) AS last_updated,
 116                         update_interval FROM ttrss_feeds WHERE owner_uid = '$user_id'
 117                         ORDER BY $q_order");
 118
 119                 $upd_start = time();
 120
 121                 while ($line = db_fetch_assoc($result)) {
 122                         $upd_intl = $line["update_interval"];
 123
 124                         if (!$upd_intl || $upd_intl == 0) {
 125                                 $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
 126                         }
 127
 128                         if ($fetch || (!$line["last_updated"] ||
 129                                 time() - strtotime($line["last_updated"]) > ($upd_intl * 60))) {
 130
 131 //                              print "<!-- feed: ".$line["feed_url"]." -->";
 132
 133                                 update_rss_feed($link, $line["feed_url"], $line["id"], $force_daemon);
 134
 135                                 $upd_elapsed = time() - $upd_start;
 136
 137                                 if (MAX_UPDATE_TIME > 0 && $upd_elapsed > MAX_UPDATE_TIME) {
 138                                         return;
 139                                 }
 140                         }
 141                 }
 142
 143 //              db_query($link, "COMMIT");
 144
 145         }
 146
 147         function check_feed_favicon($feed_url, $feed, $link) {
 148                 $feed_url = str_replace("http://", "", $feed_url);
 149                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
 150
 151                 $icon_url = "http://$feed_url/favicon.ico";
 152                 $icon_file = ICONS_DIR . "/$feed.ico";
 153
 154                 if (!file_exists($icon_file)) {
 155
 156                         error_reporting(0);
 157                         $r = fopen($icon_url, "r");
 158                         error_reporting (DEFAULT_ERROR_LEVEL);
 159
 160                         if ($r) {
 161                                 $tmpfname = tempnam(TMP_DIRECTORY, "ttrssicon");
 162
 163                                 $t = fopen($tmpfname, "w");
 164
 165                                 while (!feof($r)) {
 166                                         $buf = fread($r, 16384);
 167                                         fwrite($t, $buf);
 168                                 }
 169
 170                                 fclose($r);
 171                                 fclose($t);
 172
 173                                 error_reporting(0);
 174                                 if (!rename($tmpfname, $icon_file)) {
 175                                         unlink($tmpfname);
 176                                 }
 177
 178                                 chmod($icon_file, 0644);
 179
 180                                 error_reporting (DEFAULT_ERROR_LEVEL);
 181
 182                         }
 183                 }
 184         }
 185
 186         function update_rss_feed($link, $feed_url, $feed, $ignore_daemon = false) {
 187
 188                 if (WEB_DEMO_MODE) return;
 189
 190                 if (DAEMON_REFRESH_ONLY && !$_GET["daemon"] && !$ignore_daemon) {
 191                         return;
 192                 }
 193
 194                 $result = db_query($link, "SELECT update_interval,auth_login,auth_pass
 195                         FROM ttrss_feeds WHERE id = '$feed'");
 196
 197                 $auth_login = db_fetch_result($result, 0, "auth_login");
 198                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
 199
 200                 $update_interval = db_fetch_result($result, 0, "update_interval");
 201
 202                 if ($update_interval < 0) { return; }
 203
 204                 $feed = db_escape_string($feed);
 205
 206                 $fetch_url = $feed_url;
 207
 208                 if ($auth_login && $auth_pass) {
 209                         $url_parts = array();
 210                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 211
 212                         if ($url_parts[1] && $url_parts[2]) {
 213                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 214                         }
 215
 216                 }
 217                 error_reporting(0);
 218                 $rss = fetch_rss($fetch_url);
 219
 220                 error_reporting (DEFAULT_ERROR_LEVEL);
 221
 222                 $feed = db_escape_string($feed);
 223
 224                 if ($rss) {
 225
 226                         db_query($link, "BEGIN");
 227
 228                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 229                                 FROM ttrss_feeds WHERE id = '$feed'");
 230
 231                         $registered_title = db_fetch_result($result, 0, "title");
 232                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 233                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 234
 235                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 236
 237                         if (get_pref($link, 'ENABLE_FEED_ICONS', $owner_uid)) {
 238                                 check_feed_favicon($feed_url, $feed, $link);
 239                         }
 240
 241                         if (!$registered_title || $registered_title == "[Unknown]") {
 242                                 $feed_title = db_escape_string($rss->channel["title"]);
 243                                 db_query($link, "UPDATE ttrss_feeds SET
 244                                         title = '$feed_title' WHERE id = '$feed'");
 245                         }
 246
 247                         $site_url = $rss->channel["link"];
 248                         // weird, weird Magpie
 249                         if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 250
 251                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 252                                 db_query($link, "UPDATE ttrss_feeds SET
 253                                         site_url = '$site_url' WHERE id = '$feed'");
 254                         }
 255
 256 //                      print "I: " . $rss->channel["image"]["url"];
 257
 258                         $icon_url = $rss->image["url"];
 259
 260                         if ($icon_url && !$orig_icon_url != db_escape_string($icon_url)) {
 261                                 $icon_url = db_escape_string($icon_url);
 262                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 263                         }
 264
 265
 266                         $filters = array();
 267
 268                         $result = db_query($link, "SELECT reg_exp,
 269                                 ttrss_filter_types.name AS name,
 270                                 ttrss_filter_actions.name AS action
 271                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
 272                                         owner_uid = $owner_uid AND
 273                                         ttrss_filter_types.id = filter_type AND
 274                                         ttrss_filter_actions.id = action_id AND
 275                                 (feed_id IS NULL OR feed_id = '$feed')");
 276
 277                         while ($line = db_fetch_assoc($result)) {
 278                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 279
 280                                 $filter["reg_exp"] = $line["reg_exp"];
 281                                 $filter["action"] = $line["action"];
 282
 283                                 array_push($filters[$line["name"]], $filter);
 284                         }
 285
 286                         $iterator = $rss->items;
 287
 288                         if (!$iterator) $iterator = $rss->entries;
 289                         if (!$iterator) $iterator = $rss;
 290
 291                         foreach ($iterator as $item) {
 292
 293                                 $entry_guid = $item["id"];
 294
 295                                 if (!$entry_guid) $entry_guid = $item["guid"];
 296                                 if (!$entry_guid) $entry_guid = $item["link"];
 297
 298                                 if (!$entry_guid) continue;
 299
 300                                 $entry_timestamp = "";
 301
 302                                 $rss_2_date = $item['pubdate'];
 303                                 $rss_1_date = $item['dc']['date'];
 304                                 $atom_date = $item['issued'];
 305                                 if (!$atom_date) $atom_date = $item['updated'];
 306
 307                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 308                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 309                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 310
 311                                 if ($entry_timestamp == "") {
 312                                         $entry_timestamp = time();
 313                                         $no_orig_date = 'true';
 314                                 } else {
 315                                         $no_orig_date = 'false';
 316                                 }
 317
 318                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 319
 320                                 $entry_title = $item["title"];
 321
 322                                 // strange Magpie workaround
 323                                 $entry_link = $item["link_"];
 324                                 if (!$entry_link) $entry_link = $item["link"];
 325
 326                                 if (!$entry_title) continue;
 327                                 if (!$entry_link) continue;
 328
 329                                 $entry_content = $item["content:escaped"];
 330
 331                                 if (!$entry_content) $entry_content = $item["content:encoded"];
 332                                 if (!$entry_content) $entry_content = $item["content"];
 333                                 if (!$entry_content) $entry_content = $item["summary"];
 334                                 if (!$entry_content) $entry_content = $item["description"];
 335
 336 //                              if (!$entry_content) continue;
 337
 338                                 // WTF
 339                                 if (is_array($entry_content)) {
 340                                         $entry_content = $entry_content["encoded"];
 341                                         if (!$entry_content) $entry_content = $entry_content["escaped"];
 342                                 }
 343
 344 //                              print_r($item);
 345 //                              print_r(htmlspecialchars($entry_content));
 346 //                              print "<br>";
 347
 348                                 $entry_content_unescaped = $entry_content;
 349                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 350
 351                                 $entry_comments = $item["comments"];
 352
 353                                 $entry_guid = db_escape_string($entry_guid);
 354
 355                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 356                                         WHERE guid = '$entry_guid'");
 357
 358                                 $entry_content = db_escape_string($entry_content);
 359                                 $entry_title = db_escape_string($entry_title);
 360                                 $entry_link = db_escape_string($entry_link);
 361                                 $entry_comments = db_escape_string($entry_comments);
 362
 363                                 $num_comments = db_escape_string($item["slash"]["comments"]);
 364
 365                                 if (!$num_comments) $num_comments = 0;
 366
 367                                 if (db_num_rows($result) == 0) {
 368
 369                                         // base post entry does not exist, create it
 370
 371                                         $result = db_query($link,
 372                                                 "INSERT INTO ttrss_entries
 373                                                         (title,
 374                                                         guid,
 375                                                         link,
 376                                                         updated,
 377                                                         content,
 378                                                         content_hash,
 379                                                         no_orig_date,
 380                                                         date_entered,
 381                                                         comments,
 382                                                         num_comments)
 383                                                 VALUES
 384                                                         ('$entry_title',
 385                                                         '$entry_guid',
 386                                                         '$entry_link',
 387                                                         '$entry_timestamp_fmt',
 388                                                         '$entry_content',
 389                                                         '$content_hash',
 390                                                         $no_orig_date,
 391                                                         NOW(),
 392                                                         '$entry_comments',
 393                                                         '$num_comments')");
 394                                 } else {
 395                                         // we keep encountering the entry in feeds, so we need to
 396                                         // update date_entered column so that we don't get horrible
 397                                         // dupes when the entry gets purged and reinserted again e.g.
 398                                         // in the case of SLOW SLOW OMG SLOW updating feeds
 399
 400                                         $base_entry_id = db_fetch_result($result, 0, "id");
 401
 402                                         db_query($link, "UPDATE ttrss_entries SET date_entered = NOW()
 403                                                 WHERE id = '$base_entry_id'");
 404                                 }
 405
 406                                 // now it should exist, if not - bad luck then
 407
 408                                 $result = db_query($link, "SELECT
 409                                                 id,content_hash,no_orig_date,title,
 410                                                 substring(date_entered,1,19) as date_entered,
 411                                                 substring(updated,1,19) as updated,
 412                                                 num_comments
 413                                         FROM
 414                                                 ttrss_entries
 415                                         WHERE guid = '$entry_guid'");
 416
 417                                 if (db_num_rows($result) == 1) {
 418
 419                                         // this will be used below in update handler
 420                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 421                                         $orig_title = db_fetch_result($result, 0, "title");
 422                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
 423                                         $orig_date_entered = strtotime(db_fetch_result($result,
 424                                                 0, "date_entered"));
 425
 426                                         $ref_id = db_fetch_result($result, 0, "id");
 427
 428                                         // check for user post link to main table
 429
 430                                         // do we allow duplicate posts with same GUID in different feeds?
 431                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid)) {
 432                                                 $dupcheck_qpart = "AND feed_id = '$feed'";
 433                                         } else {
 434                                                 $dupcheck_qpart = "";
 435                                         }
 436
 437 //                                      error_reporting(0);
 438
 439                                         $filter_name = get_filter_name($entry_title, $entry_content,
 440                                                 $entry_link, $filters);
 441
 442                                         if ($filter_name == "filter") {
 443                                                 continue;
 444                                         }
 445
 446 //                                      error_reporting (DEFAULT_ERROR_LEVEL);
 447
 448                                         $result = db_query($link,
 449                                                 "SELECT ref_id FROM ttrss_user_entries WHERE
 450                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
 451                                                         $dupcheck_qpart");
 452
 453                                         // okay it doesn't exist - create user entry
 454                                         if (db_num_rows($result) == 0) {
 455
 456                                                 if ($filter_name != 'catchup') {
 457                                                         $unread = 'true';
 458                                                         $last_read_qpart = 'NULL';
 459                                                 } else {
 460                                                         $unread = 'false';
 461                                                         $last_read_qpart = 'NOW()';
 462                                                 }
 463
 464                                                 $result = db_query($link,
 465                                                         "INSERT INTO ttrss_user_entries
 466                                                                 (ref_id, owner_uid, feed_id, unread, last_read)
 467                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
 468                                                                 $last_read_qpart)");
 469                                         }
 470
 471                                         $post_needs_update = false;
 472
 473                                         if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE", $owner_uid) &&
 474                                                 ($content_hash != $orig_content_hash)) {
 475                                                 $post_needs_update = true;
 476                                         }
 477
 478                                         if ($orig_title != $entry_title) {
 479                                                 $post_needs_update = true;
 480                                         }
 481
 482                                         if ($orig_num_comments != $num_comments) {
 483                                                 $post_needs_update = true;
 484                                         }
 485
 486 //                                      this doesn't seem to be very reliable
 487 //
 488 //                                      if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 489 //                                              $post_needs_update = true;
 490 //                                      }
 491
 492                                         // if post needs update, update it and mark all user entries
 493                                         // linking to this post as updated
 494                                         if ($post_needs_update) {
 495
 496 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
 497
 498                                                 db_query($link, "UPDATE ttrss_entries
 499                                                         SET title = '$entry_title', content = '$entry_content',
 500                                                                 num_comments = '$num_comments'
 501                                                         WHERE id = '$ref_id'");
 502
 503                                                 db_query($link, "UPDATE ttrss_user_entries
 504                                                         SET last_read = null WHERE ref_id = '$ref_id' AND unread = false");
 505
 506                                         }
 507                                 }
 508
 509                                 /* taaaags */
 510                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 511
 512                                 $entry_tags = null;
 513
 514                                 preg_match_all("/<a.*?href=.http:\/\/.*?technorati.com\/tag\/([^\"\'>]+)/i",
 515                                         $entry_content_unescaped, $entry_tags);
 516
 517 //                              print "<br>$entry_title : $entry_content_unescaped<br>";
 518 //                              print_r($entry_tags);
 519 //                              print "<br>";
 520
 521                                 $entry_tags = $entry_tags[1];
 522
 523                                 if (count($entry_tags) > 0) {
 524
 525                                         $result = db_query($link, "SELECT id,int_id
 526                                                 FROM ttrss_entries,ttrss_user_entries
 527                                                 WHERE guid = '$entry_guid'
 528                                                 AND feed_id = '$feed' AND ref_id = id
 529                                                 AND owner_uid = '$owner_uid'");
 530
 531                                         if (db_num_rows($result) == 1) {
 532
 533                                                 $entry_id = db_fetch_result($result, 0, "id");
 534                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
 535
 536                                                 foreach ($entry_tags as $tag) {
 537                                                         $tag = db_escape_string(strtolower($tag));
 538
 539                                                         $tag = str_replace("+", " ", $tag);
 540                                                         $tag = str_replace("technorati tag: ", "", $tag);
 541
 542                                                         $result = db_query($link, "SELECT id FROM ttrss_tags
 543                                                                 WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
 544                                                                 owner_uid = '$owner_uid' LIMIT 1");
 545
 546         //                                              print db_fetch_result($result, 0, "id");
 547
 548                                                         if ($result && db_num_rows($result) == 0) {
 549
 550         //                                                      print "tagging $entry_id as $tag<br>";
 551
 552                                                                 db_query($link, "INSERT INTO ttrss_tags
 553                                                                         (owner_uid,tag_name,post_int_id)
 554                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
 555                                                         }
 556                                                 }
 557                                         }
 558                                 }
 559                         }
 560
 561                         db_query($link, "UPDATE ttrss_feeds
 562                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 563
 564                         db_query($link, "COMMIT");
 565
 566                 } else {
 567                         $error_msg = db_escape_string(magpie_error());
 568                         db_query($link,
 569                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
 570                                         last_updated = NOW() WHERE id = '$feed'");
 571                 }
 572
 573         }
 574
 575         function print_select($id, $default, $values, $attributes = "") {
 576                 print "<select id=\"$id\" $attributes>";
 577                 foreach ($values as $v) {
 578                         if ($v == $default)
 579                                 $sel = " selected";
 580                          else
 581                                 $sel = "";
 582
 583                         print "<option$sel>$v</option>";
 584                 }
 585                 print "</select>";
 586         }
 587
 588         function get_filter_name($title, $content, $link, $filters) {
 589
 590                 if ($filters["title"]) {
 591                         foreach ($filters["title"] as $filter) {
 592                                 $reg_exp = $filter["reg_exp"];
 593                                 if (preg_match("/$reg_exp/i", $title)) {
 594                                         return $filter["action"];
 595                                 }
 596                         }
 597                 }
 598
 599                 if ($filters["content"]) {
 600                         foreach ($filters["content"] as $filter) {
 601                                 $reg_exp = $filter["reg_exp"];
 602                                 if (preg_match("/$reg_exp/i", $content)) {
 603                                         return $filter["action"];
 604                                 }
 605                         }
 606                 }
 607
 608                 if ($filters["both"]) {
 609                         foreach ($filters["both"] as $filter) {
 610                                 $reg_exp = $filter["reg_exp"];
 611                                 if (preg_match("/$reg_exp/i", $title) ||
 612                                         preg_match("/$reg_exp/i", $content)) {
 613                                         return $filter["action"];
 614                                 }
 615                         }
 616                 }
 617
 618                 if ($filters["link"]) {
 619                         $reg_exp = $filter["reg_exp"];
 620                         foreach ($filters["link"] as $filter) {
 621                                 $reg_exp = $filter["reg_exp"];
 622                                 if (preg_match("/$reg_exp/i", $link)) {
 623                                         return $filter["action"];
 624                                 }
 625                         }
 626                 }
 627
 628                 return false;
 629         }
 630
 631         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link) {
 632
 633                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 634                                 $feed_icon = "<img id=\"FIMG-$feed_id\" src=\"$icon_file\">";
 635                 } else {
 636                         $feed_icon = "<img id=\"FIMG-$feed_id\" src=\"images/blank_icon.gif\">";
 637                 }
 638
 639                 $feed = "<a href=\"javascript:viewfeed('$feed_id', 0);\">$feed_title</a>";
 640
 641                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 642                 if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 643                         print "$feed_icon";
 644                 }
 645
 646                 print "<span id=\"FEEDN-$feed_id\">$feed</span>";
 647
 648                 if ($unread != 0) {
 649                         $fctr_class = "";
 650                 } else {
 651                         $fctr_class = "class=\"invisible\"";
 652                 }
 653
 654                 print "<span $fctr_class id=\"FEEDCTR-$feed_id\">
 655                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 656
 657                 print "</li>";
 658
 659         }
 660
 661         function getmicrotime() {
 662                 list($usec, $sec) = explode(" ",microtime());
 663                 return ((float)$usec + (float)$sec);
 664         }
 665
 666         function print_radio($id, $default, $values, $attributes = "") {
 667                 foreach ($values as $v) {
 668
 669                         if ($v == $default)
 670                                 $sel = "checked";
 671                          else
 672                                 $sel = "";
 673
 674                         if ($v == "Yes") {
 675                                 $sel .= " value=\"1\"";
 676                         } else {
 677                                 $sel .= " value=\"0\"";
 678                         }
 679
 680                         print "<input type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 681
 682                 }
 683         }
 684
 685         function initialize_user_prefs($link, $uid) {
 686
 687                 $uid = db_escape_string($uid);
 688
 689                 db_query($link, "BEGIN");
 690
 691                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
 692
 693                 $u_result = db_query($link, "SELECT pref_name
 694                         FROM ttrss_user_prefs WHERE owner_uid = '$uid'");
 695
 696                 $active_prefs = array();
 697
 698                 while ($line = db_fetch_assoc($u_result)) {
 699                         array_push($active_prefs, $line["pref_name"]);
 700                 }
 701
 702                 while ($line = db_fetch_assoc($result)) {
 703                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 704 //                              print "adding " . $line["pref_name"] . "<br>";
 705
 706                                 db_query($link, "INSERT INTO ttrss_user_prefs
 707                                         (owner_uid,pref_name,value) VALUES
 708                                         ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 709
 710                         }
 711                 }
 712
 713                 db_query($link, "COMMIT");
 714
 715         }
 716
 717         function authenticate_user($link, $login, $password) {
 718
 719                 $pwd_hash = 'SHA1:' . sha1($password);
 720
 721                 $result = db_query($link, "SELECT id,login,access_level FROM ttrss_users WHERE
 722                         login = '$login' AND ((pwd_hash = '$password' AND '$password' = 'password')
 723                                 OR pwd_hash = '$pwd_hash')");
 724
 725                 if (db_num_rows($result) == 1) {
 726                         $_SESSION["uid"] = db_fetch_result($result, 0, "id");
 727                         $_SESSION["name"] = db_fetch_result($result, 0, "login");
 728                         $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 729
 730                         db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 731                                 $_SESSION["uid"]);
 732
 733                         $user_theme = get_user_theme_path($link);
 734
 735                         $_SESSION["theme"] = $user_theme;
 736
 737                         initialize_user_prefs($link, $_SESSION["uid"]);
 738
 739                         return true;
 740                 }
 741
 742                 return false;
 743
 744         }
 745
 746         function make_password($length = 8) {
 747
 748                 $password = "";
 749                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
 750
 751         $i = 0;
 752
 753                 while ($i < $length) {
 754                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 755
 756                         if (!strstr($password, $char)) {
 757                                 $password .= $char;
 758                                 $i++;
 759                         }
 760                 }
 761                 return $password;
 762         }
 763
 764         // this is called after user is created to initialize default feeds, labels
 765         // or whatever else
 766
 767         // user preferences are checked on every login, not here
 768
 769         function initialize_user($link, $uid) {
 770
 771                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 772                         values ('$uid','unread = true', 'Unread articles')");
 773
 774                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 775                         values ('$uid','last_read is null and unread = false', 'Updated articles')");
 776
 777                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 778                         values ('$uid', 'Tiny Tiny RSS: New Releases',
 779                         'http://tt-rss.spb.ru/releases.rss')");
 780
 781         }
 782
 783         function logout_user() {
 784                 session_destroy();
 785         }
 786
 787         function get_script_urlpath() {
 788                 return preg_replace('/\/[^\/]*$/', "", $_SERVER["REQUEST_URI"]);
 789         }
 790
 791         function get_login_redirect() {
 792                 $server = $_SERVER["SERVER_NAME"];
 793
 794                 if (ENABLE_LOGIN_SSL) {
 795                         $protocol = "https";
 796                 } else {
 797                         $protocol = "http";
 798                 }
 799
 800                 $url_path = get_script_urlpath();
 801
 802                 $redirect_uri = "$protocol://$server$url_path/login.php";
 803
 804                 return $redirect_uri;
 805         }
 806
 807         function login_sequence($link) {
 808                 if (!SINGLE_USER_MODE) {
 809
 810                         if (!USE_HTTP_AUTH) {
 811                                 if (!$_SESSION["uid"]) {
 812                                         $redirect_uri = get_login_redirect();
 813                                         $return_to = preg_replace('/.*?\//', '', $_SERVER["REQUEST_URI"]);
 814                                         header("Location: $redirect_uri?rt=$return_to");
 815                                         exit;
 816                                 }
 817                         } else {
 818                                 if (!$_SESSION["uid"]) {
 819                                         if (!$_SERVER["PHP_AUTH_USER"]) {
 820
 821                                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS"');
 822                                                 header('HTTP/1.0 401 Unauthorized');
 823                                                 exit;
 824
 825                                         } else {
 826                                                 $auth_result = authenticate_user($link,
 827                                                         $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
 828
 829                                                 if (!$auth_result) {
 830                                                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS"');
 831                                                         header('HTTP/1.0 401 Unauthorized');
 832                                                         exit;
 833                                                 }
 834                                         }
 835                                 }
 836                         }
 837                 } else {
 838                         $_SESSION["uid"] = 1;
 839                         $_SESSION["name"] = "admin";
 840                         initialize_user_prefs($link, 1);
 841                 }
 842         }
 843
 844         function truncate_string($str, $max_len) {
 845                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
 846                         return mb_substr($str, 0, $max_len, "utf-8") . "...";
 847                 } else {
 848                         return $str;
 849                 }
 850         }
 851
 852         function get_user_theme_path($link) {
 853                 $result = db_query($link, "SELECT theme_path
 854                         FROM
 855                                 ttrss_themes,ttrss_users
 856                         WHERE ttrss_themes.id = theme_id AND ttrss_users.id = " . $_SESSION["uid"]);
 857                 if (db_num_rows($result) != 0) {
 858                         return db_fetch_result($result, 0, "theme_path");
 859                 } else {
 860                         return null;
 861                 }
 862         }
 863
 864         function smart_date_time($timestamp) {
 865                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
 866                         return date("G:i", $timestamp);
 867                 } else if (date("Y", $timestamp) == date("Y")) {
 868                         return date("M d, G:i", $timestamp);
 869                 } else {
 870                         return date("Y/m/d G:i");
 871                 }
 872         }
 873
 874         function smart_date($timestamp) {
 875                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
 876                         return "Today";
 877                 } else if (date("Y", $timestamp) == date("Y")) {
 878                         return date("D m", $timestamp);
 879                 } else {
 880                         return date("Y/m/d");
 881                 }
 882         }
 883
 884         function sql_bool_to_string($s) {
 885                 if ($s == "t" || $s == "1") {
 886                         return "true";
 887                 } else {
 888                         return "false";
 889                 }
 890         }
 891
 892         function sql_bool_to_bool($s) {
 893                 if ($s == "t" || $s == "1") {
 894                         return true;
 895                 } else {
 896                         return false;
 897                 }
 898         }
 899
 900
 901         function toggleEvenOdd($a) {
 902                 if ($a == "even")
 903                         return "odd";
 904                 else
 905                         return "even";
 906         }
 907
 908         function sanity_check($link) {
 909
 910                 $error_code = 0;
 911                 $result = db_query($link, "SELECT schema_version FROM ttrss_version");
 912                 $schema_version = db_fetch_result($result, 0, "schema_version");
 913
 914                 if ($schema_version != SCHEMA_VERSION) {
 915                         $error_code = 5;
 916                 }
 917
 918                 if ($error_code != 0) {
 919                         print "<error error-code='$error_code'/>";
 920                         return false;
 921                 } else {
 922                         return true;
 923                 }
 924         }
 925
 926 ?>