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<?php
function phorum_htmlpurifier_migrate_sigs_check() {
global $PHORUM;
$offset = 0;
if (!empty($_POST['migrate-sigs'])) {
if (!isset($_POST['confirmation']) || strtolower($_POST['confirmation']) !== 'yes') {
echo 'Invalid confirmation code.';
exit;
}
$PHORUM['mod_htmlpurifier']['migrate-sigs'] = true;
phorum_db_update_settings(array("mod_htmlpurifier"=>$PHORUM["mod_htmlpurifier"]));
$offset = 1;
} elseif (!empty($_GET['migrate-sigs']) && $PHORUM['mod_htmlpurifier']['migrate-sigs']) {
$offset = (int) $_GET['migrate-sigs'];
}
return $offset;
}
function phorum_htmlpurifier_migrate_sigs($offset) {
global $PHORUM;
if(!$offset) return; // bail out quick if $offset == 0
// theoretically, we could get rid of this multi-request
// doo-hickery if safe mode is off
@set_time_limit(0); // attempt to let this run
$increment = $PHORUM['mod_htmlpurifier']['migrate-sigs-increment'];
require_once(dirname(__FILE__) . '/../migrate.php');
// migrate signatures
// do this in batches so we don't run out of time/space
$end = $offset + $increment;
$user_ids = array();
for ($i = $offset; $i < $end; $i++) {
$user_ids[] = $i;
}
$userinfos = phorum_db_user_get_fields($user_ids, 'signature');
foreach ($userinfos as $i => $user) {
if (empty($user['signature'])) continue;
$sig = $user['signature'];
// perform standard Phorum processing on the sig
$sig = str_replace(array("&","<",">"), array("&","<",">"), $sig);
$sig = preg_replace("/<((http|https|ftp):\/\/[a-z0-9;\/\?:@=\&\$\-_\.\+!*'\(\),~%]+?)>/i", "$1", $sig);
// prepare fake data to pass to migration function
$fake_data = array(array("author"=>"", "email"=>"", "subject"=>"", 'body' => $sig));
list($fake_message) = phorum_htmlpurifier_migrate($fake_data);
$user['signature'] = $fake_message['body'];
if (!phorum_api_user_save($user)) {
exit('Error while saving user data');
}
}
unset($userinfos); // free up memory
// query for highest ID in database
$type = $PHORUM['DBCONFIG']['type'];
$sql = "select MAX(user_id) from {$PHORUM['user_table']}";
$row = phorum_db_interact(DB_RETURN_ROW, $sql);
$top_id = (int) $row[0];
$offset += $increment;
if ($offset > $top_id) { // test for end condition
echo 'Migration finished';
$PHORUM['mod_htmlpurifier']['migrate-sigs'] = false;
phorum_htmlpurifier_commit_settings();
return true;
}
$host = $_SERVER['HTTP_HOST'];
$uri = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
$extra = 'admin.php?module=modsettings&mod=htmlpurifier&migrate-sigs=' . $offset;
// relies on output buffering to work
header("Location: http://$host$uri/$extra");
exit;
}
// vim: et sw=4 sts=4
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