function prepare($args)
{
StatusNet::setApi(true);
// Send smaller error pages
parent::prepare($args);
if ($_SERVER['REQUEST_METHOD'] != 'POST') {
$this->clientError(_m('This method requires a POST.'));
}
if (empty($_SERVER['CONTENT_TYPE']) || $_SERVER['CONTENT_TYPE'] != 'application/magic-envelope+xml') {
$this->clientError(_m('Salmon requires application/magic-envelope+xml'));
}
$xml = file_get_contents('php://input');
// Check the signature
$salmon = new Salmon();
if (!$salmon->verifyMagicEnv($xml)) {
common_log(LOG_DEBUG, "Salmon signature verification failed.");
$this->clientError(_m('Salmon signature verification failed.'));
} else {
$magic_env = new MagicEnvelope();
$env = $magic_env->parse($xml);
$xml = $magic_env->unfold($env);
}
$dom = DOMDocument::loadXML($xml);
if ($dom->documentElement->namespaceURI != Activity::ATOM || $dom->documentElement->localName != 'entry') {
common_log(LOG_DEBUG, "Got invalid Salmon post: {$xml}");
$this->clientError(_m('Salmon post must be an Atom entry.'));
}
$this->act = new Activity($dom->documentElement);
return true;
}
public function verifyMagicEnv($text)
{
$magic_env = new MagicEnvelope();
$env = $magic_env->parse($text);
return $magic_env->verify($env);
}
