將SAML2 AuthnRequest轉換為Java類

Question

我正在使用OpenSAML 2.6.5作為SAML2庫。 我沒有找到有關如何編組代表來自服務提供商的AuthnRequest的字符串（XML文檔）的文檔。 誰能幫我？

Answer 1

要從SP讀取請求，您需要對傳入的String進行編碼和解組，如下所示：

    DefaultBootstrap.bootstrap(); //crucial in SAML2
    byte[] decodedSamlAsBytes = Base64.decode(incomingEncodedSaml);

    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder docBuilder = documentBuilderFactory.newDocumentBuilder();

    Document document = docBuilder.parse(new ByteArrayInputStream(decodedSamlAsBytes));
    Element element = document.getDocumentElement();

    UnmarshallerFactory unmarshallerFactory = Configuration.getUnmarshallerFactory();
    Unmarshaller unmarshaller = unmarshallerFactory.getUnmarshaller(element);
    XMLObject requestXmlObj = unmarshaller.unmarshall(element);
    AuthnRequest request = (AuthnRequest) requestXmlObj;