function stash_request($extra = null, $email = null)
{
$url = url_invoked();
if (!is_null($_SERVER['QUERY_STRING'])) {
$url .= "?{$_SERVER['QUERY_STRING']}";
}
$v = null;
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$v = $_POST;
}
return stash_new_request($_SERVER['REQUEST_METHOD'], $url, $v, $extra, $email);
}
function track_code($extra = null)
{
if (!defined('OPTION_TRACKING') || !OPTION_TRACKING) {
return '';
}
$salt = sprintf('%08x', rand());
$url = url_invoked();
$sign = null;
$img = null;
if (is_null($extra)) {
return '';
} else {
$sign = sha1(OPTION_TRACKING_SECRET . "{$salt}{$url}{$extra}");
$img = url_new(OPTION_TRACKING_URL, false, "salt", $salt, "url", $url, "extra", $extra, "sign", $sign);
}
return '<!-- This "web bug" image is used to collect data which we use to improve our services. More on this at https://secure.mysociety.org/track/ --><img alt="" src="' . htmlspecialchars($img) . '" width="1" height="1">';
}
function url_new($page, $retain)
{
if (!isset($page)) {
$page = url_invoked();
}
$url = "{$page}";
$params = array();
if ($retain) {
/* GET takes priority over POST. This isn't the usual behaviour but is
* consistent with other bits of the code (see fyr/phplib/forms.php) */
$params = array_merge($_POST, $_GET);
}
if (func_num_args() > 2) {
if (func_num_args() % 2 != 0) {
die("call to url_new with odd number of arguments");
}
for ($i = 2; $i < func_num_args(); $i += 2) {
$k = func_get_arg($i);
$v = func_get_arg($i + 1);
if (array_key_exists($k, $params)) {
unset($params[$k]);
}
$params[func_get_arg($i)] = func_get_arg($i + 1);
}
}
if (count($params) > 0) {
$keyvalpairs = array();
foreach ($params as $key => $val) {
if (is_array($val)) {
for ($i = 0; $i < count($val); ++$i) {
$keyvalpairs[] = urlencode($key) . '=' . urlencode($val[$i]);
}
} elseif ($val) {
$keyvalpairs[] = urlencode($key) . '=' . urlencode($val);
}
}
$url .= '?' . join('&', $keyvalpairs);
}
return $url;
}
