HTTPPost.php

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<?php
 
namespace SAML2;
 
class HTTPPost extends Binding
{
    public function send(Message $message)
    {
        if ($this->destination === null) {
            $destination = $message->getDestination();
        } else {
            $destination = $this->destination;
        }
        $relayState = $message->getRelayState();
 
        $msgStr = $message->toSignedXML();
        $msgStr = $msgStr->ownerDocument->saveXML($msgStr);
 
        Utils::getContainer()->debugMessage($msgStr, 'out');
 
        $msgStr = base64_encode($msgStr);
 
        if ($message instanceof Request) {
            $msgType = 'SAMLRequest';
        } else {
            $msgType = 'SAMLResponse';
        }
 
        $post = array();
        $post[$msgType] = $msgStr;
 
        if ($relayState !== null) {
            $post['RelayState'] = $relayState;
        }
 
        Utils::getContainer()->postRedirect($destination, $post);
    }
 
    public function receive()
    {
        if (array_key_exists('SAMLRequest', $_POST)) {
            $msg = $_POST['SAMLRequest'];
        } elseif (array_key_exists('SAMLResponse', $_POST)) {
            $msg = $_POST['SAMLResponse'];
        } else {
            throw new \Exception('Missing SAMLRequest or SAMLResponse parameter.');
        }
 
        $msg = base64_decode($msg);
 
        Utils::getContainer()->debugMessage($msg, 'in');
 
        $document = DOMDocumentFactory::fromString($msg);
        $xml = $document->firstChild;
 
        $msg = Message::fromXML($xml);
 
        if (array_key_exists('RelayState', $_POST)) {
            $msg->setRelayState($_POST['RelayState']);
        }
 
        return $msg;
    }
}