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