plugins/phorum/settings/migrate-sigs.php

   1 <?php
   2
   3 function phorum_htmlpurifier_migrate_sigs_check() {
   4     global $PHORUM;
   5     $offset = 0;
   6     if (!empty($_POST['migrate-sigs'])) {
   7         if (!isset($_POST['confirmation']) || strtolower($_POST['confirmation']) !== 'yes') {
   8             echo 'Invalid confirmation code.';
   9             exit;
  10         }
  11         $PHORUM['mod_htmlpurifier']['migrate-sigs'] = true;
  12         phorum_db_update_settings(array("mod_htmlpurifier"=>$PHORUM["mod_htmlpurifier"]));
  13         $offset = 1;
  14     } elseif (!empty($_GET['migrate-sigs']) && $PHORUM['mod_htmlpurifier']['migrate-sigs']) {
  15         $offset = (int) $_GET['migrate-sigs'];
  16     }
  17     return $offset;
  18 }
  19
  20 function phorum_htmlpurifier_migrate_sigs($offset) {
  21     global $PHORUM;
  22
  23     if(!$offset) return; // bail out quick if $offset == 0
  24
  25     // theoretically, we could get rid of this multi-request
  26     // doo-hickery if safe mode is off
  27     @set_time_limit(0); // attempt to let this run
  28     $increment = $PHORUM['mod_htmlpurifier']['migrate-sigs-increment'];
  29
  30     require_once(dirname(__FILE__) . '/../migrate.php');
  31     // migrate signatures
  32     // do this in batches so we don't run out of time/space
  33     $end = $offset + $increment;
  34     $user_ids = array();
  35     for ($i = $offset; $i < $end; $i++) {
  36         $user_ids[] = $i;
  37     }
  38     $userinfos = phorum_db_user_get_fields($user_ids, 'signature');
  39     foreach ($userinfos as $i => $user) {
  40         if (empty($user['signature'])) continue;
  41         $sig = $user['signature'];
  42         // perform standard Phorum processing on the sig
  43         $sig = str_replace(array("&","<",">"), array("&amp;","&lt;","&gt;"), $sig);
  44         $sig = preg_replace("/<((http|https|ftp):\/\/[a-z0-9;\/\?:@=\&\$\-_\.\+!*'\(\),~%]+?)>/i", "$1", $sig);
  45         // prepare fake data to pass to migration function
  46         $fake_data = array(array("author"=>"", "email"=>"", "subject"=>"", 'body' => $sig));
  47         list($fake_message) = phorum_htmlpurifier_migrate($fake_data);
  48         $user['signature'] = $fake_message['body'];
  49         if (!phorum_api_user_save($user)) {
  50             exit('Error while saving user data');
  51         }
  52     }
  53     unset($userinfos); // free up memory
  54
  55     // query for highest ID in database
  56     $type = $PHORUM['DBCONFIG']['type'];
  57     $sql = "select MAX(user_id) from {$PHORUM['user_table']}";
  58     $row = phorum_db_interact(DB_RETURN_ROW, $sql);
  59     $top_id = (int) $row[0];
  60
  61     $offset += $increment;
  62     if ($offset > $top_id) { // test for end condition
  63         echo 'Migration finished';
  64         $PHORUM['mod_htmlpurifier']['migrate-sigs'] = false;
  65         phorum_htmlpurifier_commit_settings();
  66         return true;
  67     }
  68     $host  = $_SERVER['HTTP_HOST'];
  69     $uri   = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
  70     $extra = 'admin.php?module=modsettings&mod=htmlpurifier&migrate-sigs=' . $offset;
  71     // relies on output buffering to work
  72     header("Location: http://$host$uri/$extra");
  73     exit;
  74
  75 }
  76
  77 // vim: et sw=4 sts=4