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