/**
* Process the entered username and password
*
* The callback function should take the entered username, and return the users password.
*/
public function process()
{
if (empty($_SERVER['PHP_AUTH_DIGEST'])) {
debug_header('Empty PHP_AUTH_DIGEST');
return false;
}
if (!($data = $this->parseHTTPDigest($_SERVER['PHP_AUTH_DIGEST']))) {
debug_header('Invalid PHP_AUTH_DIGEST');
return false;
}
$password = call_user_func_array($this->callback, array(array($data['username'])));
if (!$password) {
debug_header('No password');
return false;
}
// generate the valid response
$A1 = md5($data['username'] . ':' . $this->realm . ':' . $password);
$A2 = md5($_SERVER['REQUEST_METHOD'] . ':' . $data['uri']);
$valid_response = md5($A1 . ':' . $data['nonce'] . ':' . $data['nc'] . ':' . $data['cnonce'] . ':' . $data['qop'] . ':' . $A2);
if ($data['response'] != $valid_response) {
debug_header('Invalid response');
return false;
}
return $data['username'];
}
public static function hook_output($output)
{
//TODO Attach HTTP Error codes and descriptions to these errors
if (!is_array($output)) {
BackendError::add('Google Chart Error', 'Invalid Output');
return false;
}
$type = array_key_exists('type', $output) ? $output['type'] : Backend::get('ChartType', 'simple_line');
if (!method_exists('GChartView', $type)) {
BackendError::add('Google Chart Error', 'Invalid Chart Type');
return false;
}
if (!array_key_exists('data', $output)) {
$output = array('data' => $output);
}
if (!is_array($output['data']) || !count($output['data'])) {
BackendError::add('Google Chart Error', 'Invalid Output Data');
return false;
}
$params = array();
$title = array_key_exists('title', $output) ? $output['title'] : Backend::get('ChartTitle', false);
if ($title) {
$params['chtt'] = $title;
}
$url = self::$type($output, $params);
if (Controller::$debug) {
echo '<img src="' . $url . '">';
var_dump($params);
var_dump($output);
$dont_kill = Controller::getVar('dont_kill');
if (empty($dont_kill)) {
die;
}
}
$recache = Controller::getVar('recache') ? true : false;
debug_header('Recache - ' . $recache);
$image = curl_request($url, array(), array('cache' => $recache ? 1 : 60 * 60, 'bypass_ssl' => 1));
if (Controller::$debug) {
var_dump('Image:', $image);
}
if (!$image) {
BackendError::add('Google Chart Error', 'Could not get image');
return false;
}
$filename = Backend::get('ChartFilename', false);
if (!$filename) {
$filename = class_name(Controller::$area) . class_name(Controller::$action);
if (Controller::$action == 'read' && !empty(Controller::$parameters[0])) {
$filename .= Controller::$parameters[0];
}
}
if (Controller::$debug) {
var_dump('Filename:', $filename);
}
header('Content-Disposition: inline; filename="' . $filename . '.png"');
return $image;
}
function debug_sql()
{
global $_URL, $_DEBUGITEMS;
ob_start();
echo debug_header($_URL->file);
foreach ($_DEBUGITEMS as $debug) {
echo debug_item($debug['backtrace'], $debug['query'], &$debug['result']);
}
echo debug_footer();
$debug_contents = ob_get_contents();
ob_end_clean();
print $debug_contents;
exit;
}