functions.php

   1 <?
   2         session_start();
   3
   4         require_once 'config.php';
   5         require_once 'db-prefs.php';
   6
   7         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
   8
   9         function purge_feed($link, $feed_id, $purge_interval) {
  10
  11                 return; // FIXME disabled for now
  12
  13                 if (DB_TYPE == "pgsql") {
  14                         db_query($link, "DELETE FROM ttrss_entries WHERE
  15                                 marked = false AND feed_id = '$feed_id' AND
  16                                 date_entered < NOW() - INTERVAL '$purge_interval days'");
  17                 } else {
  18                         db_query($link, "DELETE FROM ttrss_entries WHERE
  19                                 marked = false AND feed_id = '$feed_id' AND
  20                                 date_entered < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
  21                 }
  22         }
  23
  24         function global_purge_old_posts($link, $do_output = false) {
  25
  26                 $result = db_query($link,
  27                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds");
  28
  29                 while ($line = db_fetch_assoc($result)) {
  30
  31                         $feed_id = $line["id"];
  32                         $purge_interval = $line["purge_interval"];
  33                         $owner_uid = $line["owner_uid"];
  34
  35                         if ($purge_interval == 0) {
  36
  37                                 $tmp_result = db_query($link,
  38                                         "SELECT value FROM ttrss_user_prefs WHERE
  39                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
  40
  41                                 if (db_num_rows($tmp_result) != 0) {
  42                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
  43                                 }
  44                         }
  45
  46                         if ($do_output) {
  47                                 print "<feed id='$feed_id' p_intl='$purge_interval'/>";
  48                         }
  49
  50                         if ($purge_interval > 0) {
  51                                 purge_feed($link, $feed_id, $purge_interval);
  52                         }
  53                 }
  54
  55         }
  56
  57         function purge_old_posts($link) {
  58
  59                 $user_id = $_SESSION["uid"];
  60
  61                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
  62                         WHERE owner_uid = '$user_id'");
  63
  64                 while ($line = db_fetch_assoc($result)) {
  65
  66                         $feed_id = $line["id"];
  67                         $purge_interval = $line["purge_interval"];
  68
  69                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
  70
  71                         if ($purge_interval > 0) {
  72                                 purge_feed($link, $feed_id, $purge_interval);
  73                         }
  74                 }
  75         }
  76
  77         function update_all_feeds($link, $fetch) {
  78
  79                 if (WEB_DEMO_MODE) return;
  80
  81                 if (get_pref($link, 'DAEMON_REFRESH_ONLY')) {
  82                         if (!$_GET["daemon"]) {
  83                                 return;
  84                         }
  85                 }
  86
  87                 db_query($link, "BEGIN");
  88
  89                 $user_id = $_SESSION["uid"];
  90
  91                 $result = db_query($link, "SELECT feed_url,id,
  92                         substring(last_updated,1,19) as last_updated,
  93                         update_interval FROM ttrss_feeds WHERE owner_uid = '$user_id'");
  94
  95                 while ($line = db_fetch_assoc($result)) {
  96                         $upd_intl = $line["update_interval"];
  97
  98                         if (!$upd_intl || $upd_intl == 0) {
  99                                 $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL');
 100                         }
 101
 102                         if ($fetch || (!$line["last_updated"] ||
 103                                 time() - strtotime($line["last_updated"]) > ($upd_intl * 60))) {
 104
 105                                 update_rss_feed($link, $line["feed_url"], $line["id"]);
 106                         }
 107                 }
 108
 109                 purge_old_posts($link);
 110
 111                 db_query($link, "COMMIT");
 112
 113         }
 114
 115         function check_feed_favicon($feed_url, $feed, $link) {
 116                 $feed_url = str_replace("http://", "", $feed_url);
 117                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
 118
 119                 $icon_url = "http://$feed_url/favicon.ico";
 120                 $icon_file = ICONS_DIR . "/$feed.ico";
 121
 122                 if (!file_exists($icon_file)) {
 123
 124                         error_reporting(0);
 125                         $r = fopen($icon_url, "r");
 126                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 127
 128                         if ($r) {
 129                                 $tmpfname = tempnam("/tmp", "ttrssicon");
 130
 131                                 $t = fopen($tmpfname, "w");
 132
 133                                 while (!feof($r)) {
 134                                         $buf = fread($r, 16384);
 135                                         fwrite($t, $buf);
 136                                 }
 137
 138                                 fclose($r);
 139                                 fclose($t);
 140
 141                                 error_reporting(0);
 142                                 if (!rename($tmpfname, $icon_file)) {
 143                                         unlink($tmpfname);
 144                                 }
 145
 146                                 chmod($icon_file, 0644);
 147
 148                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 149
 150                         }
 151                 }
 152         }
 153
 154         function update_rss_feed($link, $feed_url, $feed) {
 155
 156                 if (WEB_DEMO_MODE) return;
 157
 158                 $feed = db_escape_string($feed);
 159
 160                 error_reporting(0);
 161                 $rss = fetch_rss($feed_url);
 162
 163                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 164
 165                 db_query($link, "BEGIN");
 166
 167                 $feed = db_escape_string($feed);
 168
 169                 if ($rss) {
 170
 171                         if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 172                                 check_feed_favicon($feed_url, $feed, $link);
 173                         }
 174
 175                         $result = db_query($link, "SELECT title,icon_url FROM ttrss_feeds WHERE id = '$feed'");
 176
 177                         $registered_title = db_fetch_result($result, 0, "title");
 178                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 179
 180                         if (!$registered_title) {
 181                                 $feed_title = db_escape_string($rss->channel["title"]);
 182                                 db_query($link, "UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
 183                         }
 184
 185 //                      print "I: " . $rss->channel["image"]["url"];
 186
 187                         $icon_url = $rss->image["url"];
 188
 189                         if ($icon_url && !$orig_icon_url) {
 190                                 $icon_url = db_escape_string($icon_url);
 191                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 192                         }
 193
 194
 195                         $filters = array();
 196
 197                         $result = db_query($link, "SELECT reg_exp,
 198                                 (SELECT name FROM ttrss_filter_types
 199                                         WHERE id = filter_type) as name
 200                                 FROM ttrss_filters WHERE owner_uid = ".$_SESSION["uid"]);
 201
 202                         while ($line = db_fetch_assoc($result)) {
 203                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 204                                 array_push($filters[$line["name"]], $line["reg_exp"]);
 205                         }
 206
 207                         foreach ($rss->items as $item) {
 208
 209                                 $entry_guid = $item["id"];
 210
 211                                 if (!$entry_guid) $entry_guid = $item["guid"];
 212                                 if (!$entry_guid) $entry_guid = $item["link"];
 213
 214                                 if (!$entry_guid) continue;
 215
 216                                 $entry_timestamp = "";
 217
 218                                 $rss_2_date = $item['pubdate'];
 219                                 $rss_1_date = $item['dc']['date'];
 220                                 $atom_date = $item['issued'];
 221
 222                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 223                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 224                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 225
 226                                 if ($entry_timestamp == "") {
 227                                         $entry_timestamp = time();
 228                                         $no_orig_date = 'true';
 229                                 } else {
 230                                         $no_orig_date = 'false';
 231                                 }
 232
 233                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 234
 235                                 $entry_title = $item["title"];
 236                                 $entry_link = $item["link"];
 237
 238                                 if (!$entry_title) continue;
 239                                 if (!$entry_link) continue;
 240
 241                                 $entry_content = $item["content:escaped"];
 242
 243                                 if (!$entry_content) $entry_content = $item["content:encoded"];
 244                                 if (!$entry_content) $entry_content = $item["content"];
 245                                 if (!$entry_content) $entry_content = $item["description"];
 246
 247 //                              if (!$entry_content) continue;
 248
 249                                 // WTF
 250                                 if (is_array($entry_content)) {
 251                                         $entry_content = $entry_content["encoded"];
 252                                         if (!$entry_content) $entry_content = $entry_content["escaped"];
 253                                 }
 254
 255 //                              print_r($item);
 256 //                              print_r($entry_content);
 257
 258                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 259
 260                                 $entry_comments = $item["comments"];
 261
 262                                 $entry_guid = db_escape_string($entry_guid);
 263
 264                                 $result = db_query($link, "SELECT id FROM       ttrss_entries WHERE guid = '$entry_guid'");
 265
 266                                 $owner_uid = $_SESSION["uid"];
 267
 268                                 if (db_num_rows($result) == 0) {
 269
 270                                         // base post entry does not exist, create it
 271
 272                                         error_reporting(0);
 273                                         if (is_filtered($entry_title, $entry_content, $filters)) {
 274                                                 continue;
 275                                         }
 276                                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 277
 278                                         $entry_content = db_escape_string($entry_content);
 279                                         $entry_title = db_escape_string($entry_title);
 280                                         $entry_link = db_escape_string($entry_link);
 281                                         $entry_comments = db_escape_string($entry_comments);
 282
 283                                         $result = db_query($link,
 284                                                 "INSERT INTO ttrss_entries
 285                                                         (title,
 286                                                         guid,
 287                                                         link,
 288                                                         updated,
 289                                                         content,
 290                                                         content_hash,
 291                                                         no_orig_date,
 292                                                         date_entered,
 293                                                         comments)
 294                                                 VALUES
 295                                                         ('$entry_title',
 296                                                         '$entry_guid',
 297                                                         '$entry_link',
 298                                                         '$entry_timestamp_fmt',
 299                                                         '$entry_content',
 300                                                         '$content_hash',
 301                                                         $no_orig_date,
 302                                                         NOW(),
 303                                                         '$entry_comments')");
 304                                 }
 305
 306                                 // now it should exist, if not - bad luck then
 307
 308                                 $result = db_query($link, "SELECT id FROM ttrss_entries WHERE guid = '$entry_guid'");
 309
 310                                 if (db_num_rows($result) == 1) {
 311
 312                                                 $ref_id = db_fetch_result($result, 0, "id");
 313
 314                                                 // check for user post link to main table
 315
 316                                                 $result = db_query($link,
 317                                                         "SELECT ref_id FROM ttrss_user_entries WHERE
 318                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND feed_id = '$feed'");
 319
 320                                                 // okay it doesn't exist - create user entry
 321
 322                                                 if (db_num_rows($result) == 0) {
 323
 324                                                         $result = db_query($link,
 325                                                                 "INSERT INTO ttrss_user_entries
 326                                                                         (ref_id, owner_uid, feed_id)
 327                                                                 VALUES ('$ref_id', '$owner_uid', '$feed')");
 328
 329                                                 }
 330                                 }
 331
 332 /*                              $result = db_query($link, "
 333                                         SELECT
 334                                                 id,last_read,no_orig_date,title,feed_id,content_hash,
 335                                                 substring(updated,1,19) as updated
 336                                         FROM
 337                                                 ttrss_entries
 338                                         WHERE
 339                                                 guid = '$entry_guid' AND
 340                                                 owner_uid = " . $_SESSION["uid"]." AND
 341                                                 feed_id = '$feed'");
 342
 343                                 if (db_num_rows($result) == 0) {
 344
 345                                         error_reporting(0);
 346                                         if (is_filtered($entry_title, $entry_content, $filters)) {
 347                                                 continue;
 348                                         }
 349                                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 350
 351                                         //$entry_guid = db_escape_string($entry_guid);
 352                                         $entry_content = db_escape_string($entry_content);
 353                                         $entry_title = db_escape_string($entry_title);
 354                                         $entry_link = db_escape_string($entry_link);
 355                                         $entry_comments = db_escape_string($entry_comments);
 356
 357                                         $query = "INSERT
 358                                                 INTO ttrss_entries
 359                                                         (title,
 360                                                         guid,
 361                                                         link,
 362                                                         updated,
 363                                                         content,
 364                                                         content_hash,
 365                                                         feed_id,
 366                                                         comments,
 367                                                         no_orig_date,
 368                                                         date_entered,
 369                                                         owner_uid)
 370                                                 VALUES
 371                                                         ('$entry_title',
 372                                                         '$entry_guid',
 373                                                         '$entry_link',
 374                                                         '$entry_timestamp_fmt',
 375                                                         '$entry_content',
 376                                                         '$content_hash',
 377                                                         '$feed',
 378                                                         '$entry_comments',
 379                                                         $no_orig_date,
 380                                                         NOW(),".$_SESSION["uid"].")";
 381
 382                                         $result = db_query($link, $query);
 383
 384                                 } else {
 385
 386                                         $orig_entry_id = db_fetch_result($result, 0, "id");
 387                                         $orig_feed_id = db_fetch_result($result, 0, "feed_id");
 388
 389 //                                      print "OED: $orig_entry_id; OID: $orig_feed_id ; FID: $feed<br>";
 390
 391                                         if ($orig_feed_id != $feed) {
 392 //                                              print "<p>GUID $entry_guid: update from different feed ($orig_feed_id, $feed): $entry_guid [$entry_title]";
 393                                                 continue;
 394                                         }
 395
 396                                         $entry_is_modified = false;
 397
 398                                         $orig_timestamp = strtotime(db_fetch_result($result, 0, "updated"));
 399
 400                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 401                                         $orig_last_read = db_fetch_result($result, 0, "last_read");
 402                                         $orig_no_orig_date = db_fetch_result($result, 0, "no_orig_date");
 403                                         $orig_title = db_fetch_result($result, 0, "title");
 404
 405                                         $last_read_qpart = "";
 406
 407                                         if ($orig_content_hash != $content_hash) {
 408 //                                              print "$orig_content_hash :: $content_hash<br>";
 409
 410                                                 if (get_pref($link, 'UPDATE_POST_ON_CHECKSUM_CHANGE')) {
 411                                                         $last_read_qpart = 'last_read = null,';
 412                                                 }
 413                                                 $entry_is_modified = true;
 414                                         }
 415
 416                                         if ($orig_title != $entry_title) {
 417                                                 $entry_is_modified = true;
 418                                         }
 419
 420                                         if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 421                                                 $entry_is_modified = true;
 422                                         }
 423
 424                                         if ($entry_is_modified) {
 425
 426 //                                              print "$entry_guid Modified!<br>";
 427
 428                                                 $entry_comments = db_escape_string($entry_comments);
 429                                                 $entry_content = db_escape_string($entry_content);
 430                                                 $entry_title = db_escape_string($entry_title);
 431                                                 $entry_link = db_escape_string($entry_link);
 432
 433                                                 $query = "UPDATE ttrss_entries
 434                                                         SET
 435                                                                 $last_read_qpart
 436                                                                 title = '$entry_title',
 437                                                                 link = '$entry_link',
 438                                                                 updated = '$entry_timestamp_fmt',
 439                                                                 content = '$entry_content',
 440                                                                 comments = '$entry_comments',
 441                                                                 content_hash = '$content_hash'
 442                                                         WHERE
 443                                                                 id = '$orig_entry_id'";
 444
 445                                                 $result = db_query($link, $query);
 446                                         }
 447                                 } */
 448
 449                                 /* taaaags */
 450                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 451
 452 /*                              $entry_tags = null;
 453
 454                                 preg_match_all("/<a.*?rel=.tag.*?>([^>]+)<\/a>/i", $entry_content,
 455                                         $entry_tags);
 456
 457                                 $entry_tags = $entry_tags[1];
 458
 459                                 if (count($entry_tags) > 0) {
 460
 461                                         $result = db_query($link, "SELECT id FROM ttrss_entries
 462                                                 WHERE guid = '$entry_guid'
 463                                                 AND feed_id = '$feed'
 464                                                 AND owner_uid = " . $_SESSION["uid"]);
 465
 466                                         if (!$result || db_num_rows($result) != 1) {
 467                                                 return;
 468                                         }
 469
 470                                         $entry_id = db_fetch_result($result, 0, "id");
 471
 472                                         foreach ($entry_tags as $tag) {
 473                                                 $tag = db_escape_string(strtolower($tag));
 474
 475                                                 $tag = str_replace("technorati tag: ", "", $tag);
 476
 477                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
 478                                                         WHERE tag_name = '$tag' AND post_id = '$entry_id' AND
 479                                                         owner_uid = ".$_SESSION["uid"]." LIMIT 1");
 480
 481 //                                              print db_fetch_result($result, 0, "id");
 482
 483                                                 if ($result && db_num_rows($result) == 0) {
 484
 485 //                                                      print "tagging $entry_id as $tag<br>";
 486
 487                                                         db_query($link, "INSERT INTO ttrss_tags (owner_uid,tag_name,post_id)
 488                                                                 VALUES ('".$_SESSION["uid"]."','$tag', '$entry_id')");
 489                                                 }
 490                                         }
 491                                 } */
 492                         }
 493
 494                         db_query($link, "UPDATE ttrss_feeds
 495                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 496
 497                 } else {
 498                         $error_msg = db_escape_string(magpie_error());
 499                         db_query($link,
 500                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
 501                                         last_updated = NOW() WHERE id = '$feed'");
 502                 }
 503
 504                 db_query($link, "COMMIT");
 505
 506         }
 507
 508         function print_select($id, $default, $values, $attributes = "") {
 509                 print "<select id=\"$id\" $attributes>";
 510                 foreach ($values as $v) {
 511                         if ($v == $default)
 512                                 $sel = " selected";
 513                          else
 514                                 $sel = "";
 515
 516                         print "<option$sel>$v</option>";
 517                 }
 518                 print "</select>";
 519         }
 520
 521         function is_filtered($title, $content, $filters) {
 522
 523                 if ($filters["title"]) {
 524                         foreach ($filters["title"] as $title_filter) {
 525                                 if (preg_match("/$title_filter/i", $title))
 526                                         return true;
 527                         }
 528                 }
 529
 530                 if ($filters["content"]) {
 531                         foreach ($filters["content"] as $content_filter) {
 532                                 if (preg_match("/$content_filter/i", $content))
 533                                         return true;
 534                         }
 535                 }
 536
 537                 if ($filters["both"]) {
 538                         foreach ($filters["both"] as $filter) {
 539                                 if (preg_match("/$filter/i", $title) || preg_match("/$filter/i", $content))
 540                                         return true;
 541                         }
 542                 }
 543
 544                 return false;
 545         }
 546
 547         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link) {
 548
 549                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 550                                 $feed_icon = "<img src=\"$icon_file\">";
 551                 } else {
 552                         $feed_icon = "<img src=\"images/blank_icon.gif\">";
 553                 }
 554
 555                 $feed = "<a href=\"javascript:viewfeed('$feed_id', 0);\">$feed_title</a>";
 556
 557                 print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 558                 if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 559                         print "$feed_icon";
 560                 }
 561
 562                 print "<span id=\"FEEDN-$feed_id\">$feed</span>";
 563
 564                 if ($unread != 0) {
 565                         $fctr_class = "";
 566                 } else {
 567                         $fctr_class = "class=\"invisible\"";
 568                 }
 569
 570                 print "<span $fctr_class id=\"FEEDCTR-$feed_id\">
 571                          (<span id=\"FEEDU-$feed_id\">$unread</span>)</span>";
 572
 573                 print "</li>";
 574
 575         }
 576
 577         function getmicrotime() {
 578                 list($usec, $sec) = explode(" ",microtime());
 579                 return ((float)$usec + (float)$sec);
 580         }
 581
 582         function print_radio($id, $default, $values, $attributes = "") {
 583                 foreach ($values as $v) {
 584
 585                         if ($v == $default)
 586                                 $sel = "checked";
 587                          else
 588                                 $sel = "";
 589
 590                         if ($v == "Yes") {
 591                                 $sel .= " value=\"1\"";
 592                         } else {
 593                                 $sel .= " value=\"0\"";
 594                         }
 595
 596                         print "<input type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
 597
 598                 }
 599         }
 600
 601         function initialize_user_prefs($link, $uid) {
 602
 603                 $uid = db_escape_string($uid);
 604
 605                 db_query($link, "BEGIN");
 606
 607                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
 608
 609                 $u_result = db_query($link, "SELECT pref_name
 610                         FROM ttrss_user_prefs WHERE owner_uid = '$uid'");
 611
 612                 $active_prefs = array();
 613
 614                 while ($line = db_fetch_assoc($u_result)) {
 615                         array_push($active_prefs, $line["pref_name"]);
 616                 }
 617
 618                 while ($line = db_fetch_assoc($result)) {
 619                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
 620 //                              print "adding " . $line["pref_name"] . "<br>";
 621
 622                                 db_query($link, "INSERT INTO ttrss_user_prefs
 623                                         (owner_uid,pref_name,value) VALUES
 624                                         ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
 625
 626                         }
 627                 }
 628
 629                 db_query($link, "COMMIT");
 630
 631         }
 632
 633         function authenticate_user($link, $login, $password) {
 634
 635                 $pwd_hash = 'SHA1:' . sha1($password);
 636
 637                 $result = db_query($link, "SELECT id,login,access_level FROM ttrss_users WHERE
 638                         login = '$login' AND (pwd_hash = '$password' OR pwd_hash = '$pwd_hash')");
 639
 640                 if (db_num_rows($result) == 1) {
 641                         $_SESSION["uid"] = db_fetch_result($result, 0, "id");
 642                         $_SESSION["name"] = db_fetch_result($result, 0, "login");
 643                         $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 644
 645                         db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 646                                 $_SESSION["uid"]);
 647
 648                         return true;
 649                 }
 650
 651                 return false;
 652
 653         }
 654
 655         function http_authenticate_user($link) {
 656
 657                 if (!$_SERVER['PHP_AUTH_USER']) {
 658
 659                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS"');
 660                         header('HTTP/1.0 401 Unauthorized');
 661                         print "<h1>401 Unathorized</h1>";
 662                         exit;
 663
 664                 } else {
 665
 666                         $login = db_escape_string($_SERVER['PHP_AUTH_USER']);
 667                         $password = db_escape_string($_SERVER['PHP_AUTH_PW']);
 668
 669                         return authenticate_user($link, $login, $password);
 670                 }
 671         }
 672
 673         function make_password($length = 8) {
 674
 675                 $password = "";
 676                 $possible = "0123456789bcdfghjkmnpqrstvwxyz";
 677
 678                 $i = 0;
 679
 680                 while ($i < $length) {
 681                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 682
 683                         if (!strstr($password, $char)) {
 684                                 $password .= $char;
 685                                 $i++;
 686                         }
 687                 }
 688                 return $password;
 689         }
 690
 691         // this is called after user is created to initialize default feeds, labels
 692         // or whatever else
 693
 694         // user preferences are checked on every login, not here
 695
 696         function initialize_user($link, $uid) {
 697
 698                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 699                         values ('$uid','unread = true', 'Unread articles')");
 700
 701                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 702                         values ('$uid','last_read is null and unread = false', 'Updated articles')");
 703
 704                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 705                         values ('$uid', 'Tiny Tiny RSS Dev. Feed',
 706                         'http://bah.spb.su/darcsweb/darcsweb.cgi?r=tt-rss;a=rss')");
 707
 708                 }
 709
 710 ?>