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, $purge_interval) {
  10
  11                 if (DB_TYPE == "pgsql") {
  12                         db_query($link, "DELETE FROM ttrss_user_entries WHERE
  13                                 marked = false AND feed_id = '$feed_id' AND
  14                                 (SELECT date_entered FROM ttrss_entries WHERE
  15                                         id = ref_id) < NOW() - INTERVAL '$purge_interval days'");
  16                 } else {
  17                         db_query($link, "DELETE FROM ttrss_user_entries WHERE
  18                                 marked = false AND feed_id = '$feed_id' AND
  19                                 (SELECT date_entered FROM ttrss_entries WHERE
  20                                         id = ref_id) < 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, $purge_interval);
  52                         }
  53                 }
  54
  55                 // purge orphaned posts in main content table
  56                 db_query($link, "DELETE FROM ttrss_entries WHERE
  57                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
  58
  59         }
  60
  61         function purge_old_posts($link) {
  62
  63                 $user_id = $_SESSION["uid"];
  64
  65                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
  66                         WHERE owner_uid = '$user_id'");
  67
  68                 while ($line = db_fetch_assoc($result)) {
  69
  70                         $feed_id = $line["id"];
  71                         $purge_interval = $line["purge_interval"];
  72
  73                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
  74
  75                         if ($purge_interval > 0) {
  76                                 purge_feed($link, $feed_id, $purge_interval);
  77                         }
  78                 }
  79
  80                 // purge orphaned posts in main content table
  81                 db_query($link, "DELETE FROM ttrss_entries WHERE
  82                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
  83         }
  84
  85         function update_all_feeds($link, $fetch) {
  86
  87                 if (WEB_DEMO_MODE) return;
  88
  89                 if (get_pref($link, 'DAEMON_REFRESH_ONLY')) {
  90                         if (!$_GET["daemon"]) {
  91                                 return;
  92                         }
  93                 }
  94
  95                 db_query($link, "BEGIN");
  96
  97                 $user_id = $_SESSION["uid"];
  98
  99                 $result = db_query($link, "SELECT feed_url,id,
 100                         substring(last_updated,1,19) as last_updated,
 101                         update_interval FROM ttrss_feeds WHERE owner_uid = '$user_id'");
 102
 103                 while ($line = db_fetch_assoc($result)) {
 104                         $upd_intl = $line["update_interval"];
 105
 106                         if (!$upd_intl || $upd_intl == 0) {
 107                                 $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL');
 108                         }
 109
 110                         if ($fetch || (!$line["last_updated"] ||
 111                                 time() - strtotime($line["last_updated"]) > ($upd_intl * 60))) {
 112
 113                                 update_rss_feed($link, $line["feed_url"], $line["id"]);
 114                         }
 115                 }
 116
 117                 purge_old_posts($link);
 118
 119                 db_query($link, "COMMIT");
 120
 121         }
 122
 123         function check_feed_favicon($feed_url, $feed, $link) {
 124                 $feed_url = str_replace("http://", "", $feed_url);
 125                 $feed_url = preg_replace("/\/.*$/", "", $feed_url);
 126
 127                 $icon_url = "http://$feed_url/favicon.ico";
 128                 $icon_file = ICONS_DIR . "/$feed.ico";
 129
 130                 if (!file_exists($icon_file)) {
 131
 132                         error_reporting(0);
 133                         $r = fopen($icon_url, "r");
 134                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 135
 136                         if ($r) {
 137                                 $tmpfname = tempnam("/tmp", "ttrssicon");
 138
 139                                 $t = fopen($tmpfname, "w");
 140
 141                                 while (!feof($r)) {
 142                                         $buf = fread($r, 16384);
 143                                         fwrite($t, $buf);
 144                                 }
 145
 146                                 fclose($r);
 147                                 fclose($t);
 148
 149                                 error_reporting(0);
 150                                 if (!rename($tmpfname, $icon_file)) {
 151                                         unlink($tmpfname);
 152                                 }
 153
 154                                 chmod($icon_file, 0644);
 155
 156                                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 157
 158                         }
 159                 }
 160         }
 161
 162         function update_rss_feed($link, $feed_url, $feed) {
 163
 164                 if (WEB_DEMO_MODE) return;
 165
 166                 $feed = db_escape_string($feed);
 167
 168                 error_reporting(0);
 169                 $rss = fetch_rss($feed_url);
 170
 171                 error_reporting (E_ERROR | E_WARNING | E_PARSE);
 172
 173                 db_query($link, "BEGIN");
 174
 175                 $feed = db_escape_string($feed);
 176
 177                 if ($rss) {
 178
 179                         if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 180                                 check_feed_favicon($feed_url, $feed, $link);
 181                         }
 182
 183                         $result = db_query($link, "SELECT title,icon_url FROM ttrss_feeds WHERE id = '$feed'");
 184
 185                         $registered_title = db_fetch_result($result, 0, "title");
 186                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 187
 188                         if (!$registered_title) {
 189                                 $feed_title = db_escape_string($rss->channel["title"]);
 190                                 db_query($link, "UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
 191                         }
 192
 193 //                      print "I: " . $rss->channel["image"]["url"];
 194
 195                         $icon_url = $rss->image["url"];
 196
 197                         if ($icon_url && !$orig_icon_url) {
 198                                 $icon_url = db_escape_string($icon_url);
 199                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 200                         }
 201
 202
 203                         $filters = array();
 204
 205                         $result = db_query($link, "SELECT reg_exp,
 206                                 (SELECT name FROM ttrss_filter_types
 207                                         WHERE id = filter_type) as name
 208                                 FROM ttrss_filters WHERE owner_uid = ".$_SESSION["uid"]);
 209
 210                         while ($line = db_fetch_assoc($result)) {
 211                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
 212                                 array_push($filters[$line["name"]], $line["reg_exp"]);
 213                         }
 214
 215                         foreach ($rss->items as $item) {
 216
 217                                 $entry_guid = $item["id"];
 218
 219                                 if (!$entry_guid) $entry_guid = $item["guid"];
 220                                 if (!$entry_guid) $entry_guid = $item["link"];
 221
 222                                 if (!$entry_guid) continue;
 223
 224                                 $entry_timestamp = "";
 225
 226                                 $rss_2_date = $item['pubdate'];
 227                                 $rss_1_date = $item['dc']['date'];
 228                                 $atom_date = $item['issued'];
 229
 230                                 if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 231                                 if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 232                                 if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 233
 234                                 if ($entry_timestamp == "") {
 235                                         $entry_timestamp = time();
 236                                         $no_orig_date = 'true';
 237                                 } else {
 238                                         $no_orig_date = 'false';
 239                                 }
 240
 241                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 242
 243                                 $entry_title = $item["title"];
 244                                 $entry_link = $item["link"];
 245
 246                                 if (!$entry_title) continue;
 247                                 if (!$entry_link) continue;
 248
 249                                 $entry_content = $item["content:escaped"];
 250
 251                                 if (!$entry_content) $entry_content = $item["content:encoded"];
 252                                 if (!$entry_content) $entry_content = $item["content"];
 253                                 if (!$entry_content) $entry_content = $item["description"];
 254
 255 //                              if (!$entry_content) continue;
 256
 257                                 // WTF
 258                                 if (is_array($entry_content)) {
 259                                         $entry_content = $entry_content["encoded"];
 260                                         if (!$entry_content) $entry_content = $entry_content["escaped"];
 261                                 }
 262
 263 //                              print_r($item);
 264 //                              print_r($entry_content);
 265
 266                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 267
 268                                 $entry_comments = $item["comments"];
 269
 270                                 $entry_guid = db_escape_string($entry_guid);
 271
 272                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 273                                         WHERE guid = '$entry_guid'");
 274
 275                                 $owner_uid = $_SESSION["uid"];
 276
 277                                 if (db_num_rows($result) == 0) {
 278
 279                                         // base post entry does not exist, create it
 280
 281                                         error_reporting(0);
 282                                         if (is_filtered($entry_title, $entry_content, $filters)) {
 283                                                 continue;
 284                                         }
 285                                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 286
 287                                         $entry_content = db_escape_string($entry_content);
 288                                         $entry_title = db_escape_string($entry_title);
 289                                         $entry_link = db_escape_string($entry_link);
 290                                         $entry_comments = db_escape_string($entry_comments);
 291
 292                                         $result = db_query($link,
 293                                                 "INSERT INTO ttrss_entries
 294                                                         (title,
 295                                                         guid,
 296                                                         link,
 297                                                         updated,
 298                                                         content,
 299                                                         content_hash,
 300                                                         no_orig_date,
 301                                                         date_entered,
 302                                                         comments)
 303                                                 VALUES
 304                                                         ('$entry_title',
 305                                                         '$entry_guid',
 306                                                         '$entry_link',
 307                                                         '$entry_timestamp_fmt',
 308                                                         '$entry_content',
 309                                                         '$content_hash',
 310                                                         $no_orig_date,
 311                                                         NOW(),
 312                                                         '$entry_comments')");
 313                                 }
 314
 315                                 // now it should exist, if not - bad luck then
 316
 317                                 $result = db_query($link, "SELECT
 318                                                 id,content_hash,no_orig_date,title,
 319                                                 substring(updated,1,19) as updated
 320                                         FROM
 321                                                 ttrss_entries
 322                                         WHERE guid = '$entry_guid'");
 323
 324                                 if (db_num_rows($result) == 1) {
 325
 326                                                 // this will be used below in update handler
 327                                                 $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 328 //                                              $orig_timestamp = strtotime(db_fetch_result($result, 0, "updated"));
 329 //                                              $orig_no_orig_date = db_fetch_result($result, 0, "no_orig_date");
 330                                                 $orig_title = db_fetch_result($result, 0, "title");
 331
 332                                                 $ref_id = db_fetch_result($result, 0, "id");
 333
 334                                                 // check for user post link to main table
 335
 336                                                 // do we allow duplicate posts with same GUID in different feeds?
 337                                                 if (get_pref($link, "ALLOW_DUPLICATE_POSTS")) {
 338                                                         $dupcheck_qpart = "AND feed_id = '$feed'";
 339                                                 } else {
 340                                                         $dupcheck_qpart = "";
 341                                                 }
 342
 343                                                 $result = db_query($link,
 344                                                         "SELECT ref_id FROM ttrss_user_entries WHERE
 345                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid'
 346                                                                 $dupcheck_qpart");
 347
 348                                                 // okay it doesn't exist - create user entry
 349                                                 if (db_num_rows($result) == 0) {
 350                                                         $result = db_query($link,
 351                                                                 "INSERT INTO ttrss_user_entries
 352                                                                         (ref_id, owner_uid, feed_id)
 353                                                                 VALUES ('$ref_id', '$owner_uid', '$feed')");
 354                                                 }
 355
 356                                         $post_needs_update = false;
 357
 358                                         if (get_pref($link, "UPDATE_POST_ON_CHECKSUM_CHANGE") &&
 359                                                 ($content_hash != $orig_content_hash)) {
 360                                                 $post_needs_update = true;
 361                                         }
 362
 363                                         if ($orig_title != $entry_title) {
 364                                                 $post_needs_update = true;
 365                                         }
 366
 367 //                                      this doesn't seem to be very reliable
 368 //
 369 //                                      if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 370 //                                              $post_needs_update = true;
 371 //                                      }
 372
 373                                         // if post needs update, update it and mark all user entries
 374                                         // linking to this post as updated
 375
 376                                         if ($post_needs_update) {
 377
 378 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
 379
 380                                                 $entry_content = db_escape_string($entry_content);
 381                                                 $entry_title = db_escape_string($entry_title);
 382
 383                                                 db_query($link, "UPDATE ttrss_entries
 384                                                         SET title = '$entry_title', content = '$entry_content'
 385                                                         WHERE id = '$ref_id'");
 386
 387                                                 db_query($link, "UPDATE ttrss_user_entries
 388                                                         SET last_read = null WHERE ref_id = '$ref_id' AND unread = false");
 389
 390                                         }
 391                                 }
 392
 393 /*                              $result = db_query($link, "
 394                                         SELECT
 395                                                 id,last_read,no_orig_date,title,feed_id,content_hash,
 396                                                 substring(updated,1,19) as updated
 397                                         FROM
 398                                                 ttrss_entries
 399                                         WHERE
 400                                                 guid = '$entry_guid' AND
 401                                                 owner_uid = " . $_SESSION["uid"]." AND
 402                                                 feed_id = '$feed'");
 403
 404                                 if (db_num_rows($result) == 0) {
 405
 406                                         error_reporting(0);
 407                                         if (is_filtered($entry_title, $entry_content, $filters)) {
 408                                                 continue;
 409                                         }
 410                                         error_reporting (E_ERROR | E_WARNING | E_PARSE);
 411
 412                                         //$entry_guid = db_escape_string($entry_guid);
 413                                         $entry_content = db_escape_string($entry_content);
 414                                         $entry_title = db_escape_string($entry_title);
 415                                         $entry_link = db_escape_string($entry_link);
 416                                         $entry_comments = db_escape_string($entry_comments);
 417
 418                                         $query = "INSERT
 419                                                 INTO ttrss_entries
 420                                                         (title,
 421                                                         guid,
 422                                                         link,
 423                                                         updated,
 424                                                         content,
 425                                                         content_hash,
 426                                                         feed_id,
 427                                                         comments,
 428                                                         no_orig_date,
 429                                                         date_entered,
 430                                                         owner_uid)
 431                                                 VALUES
 432                                                         ('$entry_title',
 433                                                         '$entry_guid',
 434                                                         '$entry_link',
 435                                                         '$entry_timestamp_fmt',
 436                                                         '$entry_content',
 437                                                         '$content_hash',
 438                                                         '$feed',
 439                                                         '$entry_comments',
 440                                                         $no_orig_date,
 441                                                         NOW(),".$_SESSION["uid"].")";
 442
 443                                         $result = db_query($link, $query);
 444
 445                                 } else {
 446
 447                                         $orig_entry_id = db_fetch_result($result, 0, "id");
 448                                         $orig_feed_id = db_fetch_result($result, 0, "feed_id");
 449
 450 //                                      print "OED: $orig_entry_id; OID: $orig_feed_id ; FID: $feed<br>";
 451
 452                                         if ($orig_feed_id != $feed) {
 453 //                                              print "<p>GUID $entry_guid: update from different feed ($orig_feed_id, $feed): $entry_guid [$entry_title]";
 454                                                 continue;
 455                                         }
 456
 457                                         $entry_is_modified = false;
 458
 459                                         $orig_timestamp = strtotime(db_fetch_result($result, 0, "updated"));
 460
 461                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
 462                                         $orig_last_read = db_fetch_result($result, 0, "last_read");
 463                                         $orig_no_orig_date = db_fetch_result($result, 0, "no_orig_date");
 464                                         $orig_title = db_fetch_result($result, 0, "title");
 465
 466                                         $last_read_qpart = "";
 467
 468                                         if ($orig_content_hash != $content_hash) {
 469 //                                              print "$orig_content_hash :: $content_hash<br>";
 470
 471                                                 if (get_pref($link, 'UPDATE_POST_ON_CHECKSUM_CHANGE')) {
 472                                                         $last_read_qpart = 'last_read = null,';
 473                                                 }
 474                                                 $entry_is_modified = true;
 475                                         }
 476
 477                                         if ($orig_title != $entry_title) {
 478                                                 $entry_is_modified = true;
 479                                         }
 480
 481                                         if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
 482                                                 $entry_is_modified = true;
 483                                         }
 484
 485                                         if ($entry_is_modified) {
 486
 487 //                                              print "$entry_guid Modified!<br>";
 488
 489                                                 $entry_comments = db_escape_string($entry_comments);
 490                                                 $entry_content = db_escape_string($entry_content);
 491                                                 $entry_title = db_escape_string($entry_title);
 492                                                 $entry_link = db_escape_string($entry_link);
 493
 494                                                 $query = "UPDATE ttrss_entries
 495                                                         SET
 496                                                                 $last_read_qpart
 497                                                                 title = '$entry_title',
 498                                                                 link = '$entry_link',
 499                                                                 updated = '$entry_timestamp_fmt',
 500                                                                 content = '$entry_content',
 501                                                                 comments = '$entry_comments',
 502                                                                 content_hash = '$content_hash'
 503                                                         WHERE
 504                                                                 id = '$orig_entry_id'";
 505
 506                                                 $result = db_query($link, $query);
 507                                         }
 508                                 } */
 509
 510                                 /* taaaags */
 511                                 // <a href="http://technorati.com/tag/Xorg" rel="tag">Xorg</a>, //
 512
 513                                 $entry_tags = null;
 514
 515                                 preg_match_all("/<a.*?rel=.tag.*?>([^>]+)<\/a>/i", $entry_content,
 516                                         $entry_tags);
 517
 518                                 $entry_tags = $entry_tags[1];
 519
 520                                 if (count($entry_tags) > 0) {
 521
 522                                         $result = db_query($link, "SELECT id,int_id
 523                                                 FROM ttrss_entries,ttrss_user_entries
 524                                                 WHERE guid = '$entry_guid'
 525                                                 AND feed_id = '$feed' AND ref_id = id
 526                                                 AND owner_uid = " . $_SESSION["uid"]);
 527
 528                                         if (!$result || db_num_rows($result) != 1) {
 529                                                 return;
 530                                         }
 531
 532                                         $entry_id = db_fetch_result($result, 0, "id");
 533                                         $entry_int_id = db_fetch_result($result, 0, "int_id");
 534
 535                                         foreach ($entry_tags as $tag) {
 536                                                 $tag = db_escape_string(strtolower($tag));
 537
 538                                                 $tag = str_replace("technorati tag: ", "", $tag);
 539
 540                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
 541                                                         WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
 542                                                         owner_uid = ".$_SESSION["uid"]." LIMIT 1");
 543
 544 //                                              print db_fetch_result($result, 0, "id");
 545
 546                                                 if ($result && db_num_rows($result) == 0) {
 547
 548 //                                                      print "tagging $entry_id as $tag<br>";
 549
 550                                                         db_query($link, "INSERT INTO ttrss_tags
 551                                                                 (owner_uid,tag_name,post_int_id)
 552                                                                 VALUES ('".$_SESSION["uid"]."','$tag', '$entry_int_id')");
 553                                                 }
 554                                         }
 555                                 }
 556                         }
 557
 558                         db_query($link, "UPDATE ttrss_feeds
 559                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 560
 561                 } else {
 562                         $error_msg = db_escape_string(magpie_error());
 563                         db_query($link,
 564                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
 565                                         last_updated = NOW() WHERE id = '$feed'");
 566                 }
 567
 568                 db_query($link, "COMMIT");
 569
 570         }
 571
 572         function print_select($id, $default, $values, $attributes = "") {
 573                 print "<select id=\"$id\" $attributes>";
 574                 foreach ($values as $v) {
 575                         if ($v == $default)
 576                                 $sel = " selected";
 577                          else
 578                                 $sel = "";
 579
 580                         print "<option$sel>$v</option>";
 581                 }
 582                 print "</select>";
 583         }
 584
 585         function is_filtered($title, $content, $filters) {
 586
 587                 if ($filters["title"]) {
 588                         foreach ($filters["title"] as $title_filter) {
 589                                 if (preg_match("/$title_filter/i", $title))
 590                                         return true;
 591                         }
 592                 }
 593
 594                 if ($filters["content"]) {
 595                         foreach ($filters["content"] as $content_filter) {
 596                                 if (preg_match("/$content_filter/i", $content))
 597                                         return true;
 598                         }
 599                 }
 600
 601                 if ($filters["both"]) {
 602                         foreach ($filters["both"] as $filter) {
 603                                 if (preg_match("/$filter/i", $title) || preg_match("/$filter/i", $content))
 604                                         return true;
 605                         }
 606                 }
 607
 608                 return false;
 609         }
 610
 611         function printFeedEntry($feed_id, $class, $feed_title, $unread, $icon_file, $link) {
 612
 613                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 614                                 $feed_icon = "<img src=\"$icon_file\">";
 615                 } else {
 616                         $feed_icon = "<img 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' OR pwd_hash = '$pwd_hash')");
 703
 704                 if (db_num_rows($result) == 1) {
 705                         $_SESSION["uid"] = db_fetch_result($result, 0, "id");
 706                         $_SESSION["name"] = db_fetch_result($result, 0, "login");
 707                         $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
 708
 709                         db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
 710                                 $_SESSION["uid"]);
 711
 712                         return true;
 713                 }
 714
 715                 return false;
 716
 717         }
 718
 719         function http_authenticate_user($link) {
 720
 721                 if (!$_SERVER['PHP_AUTH_USER']) {
 722
 723                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS"');
 724                         header('HTTP/1.0 401 Unauthorized');
 725                         print "<h1>401 Unathorized</h1>";
 726                         exit;
 727
 728                 } else {
 729
 730                         $login = db_escape_string($_SERVER['PHP_AUTH_USER']);
 731                         $password = db_escape_string($_SERVER['PHP_AUTH_PW']);
 732
 733                         return authenticate_user($link, $login, $password);
 734                 }
 735         }
 736
 737         function make_password($length = 8) {
 738
 739                 $password = "";
 740                 $possible = "0123456789bcdfghjkmnpqrstvwxyz";
 741
 742                 $i = 0;
 743
 744                 while ($i < $length) {
 745                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 746
 747                         if (!strstr($password, $char)) {
 748                                 $password .= $char;
 749                                 $i++;
 750                         }
 751                 }
 752                 return $password;
 753         }
 754
 755         // this is called after user is created to initialize default feeds, labels
 756         // or whatever else
 757
 758         // user preferences are checked on every login, not here
 759
 760         function initialize_user($link, $uid) {
 761
 762                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 763                         values ('$uid','unread = true', 'Unread articles')");
 764
 765                 db_query($link, "insert into ttrss_labels (owner_uid,sql_exp,description)
 766                         values ('$uid','last_read is null and unread = false', 'Updated articles')");
 767
 768                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
 769                         values ('$uid', 'Tiny Tiny RSS Dev. Feed',
 770                         'http://bah.spb.su/darcsweb/darcsweb.cgi?r=tt-rss;a=rss')");
 771
 772                 }
 773
 774 ?>