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authormcentner <mcentner@d688527b-c9ab-4aba-bd8d-4036d912da1d>2007-08-08 07:25:32 +0000
committermcentner <mcentner@d688527b-c9ab-4aba-bd8d-4036d912da1d>2007-08-08 07:25:32 +0000
commit43e57a42832ea8b4ceb0317f3c9028a4174ffa7b (patch)
treef5ed9074b8d7b89b2dd5b22d326f63be103e7551 /id.server/doc/moa_id/examples/LoginServletExample.txt
parent10889e9dea2cc2f70b475e6ff7af37fdba1621d9 (diff)
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Adapted project directory structure to suit the new maven based build process.
git-svn-id: https://joinup.ec.europa.eu/svn/moa-idspss/trunk@909 d688527b-c9ab-4aba-bd8d-4036d912da1d
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-import java.io.IOException;
-import java.util.Vector;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.HttpSession;
-import javax.xml.namespace.QName;
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.rpc.Call;
-import javax.xml.rpc.Service;
-import javax.xml.rpc.ServiceFactory;
-
-import org.apache.axis.message.SOAPBodyElement;
-import org.apache.xml.serialize.LineSeparator;
-import org.apache.xml.serialize.OutputFormat;
-import org.apache.xml.serialize.XMLSerializer;
-import org.jaxen.JaxenException;
-import org.jaxen.SimpleNamespaceContext;
-import org.jaxen.dom.DOMXPath;
-import org.w3c.dom.Attr;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-import org.w3c.dom.Node;
-import org.w3c.dom.NodeList;
-
-/**
- * Beispiel für ein Login-Servlet, das von MOA-ID-AUTH über einen Redirect aufgerufen wird.
- * Es werden demonstriert:
- * - Parameterübergabe von MOA-ID-AUTH
- * - Aufruf des MOA-ID-AUTH Web Service zum Abholen der Anmeldedaten über das Apache Axis Framework
- * - Parsen der Anmeldedaten mittels der XPath Engine "Jaxen"
- * - Speichern der Anmeldedaten in der HTTPSession
- * - Redirect auf die eigentliche Startseite der OA
- *
- * @author Paul Ivancsics
- */
-public class LoginServletExample extends HttpServlet {
-
- // Web Service QName und Endpoint
- private static final QName SERVICE_QNAME = new QName("GetAuthenticationData");
- private static final String ENDPOINT =
- "http://localhost:8080/moa-id-auth/services/GetAuthenticationData";
- // NamespaceContext für Jaxen
- private static SimpleNamespaceContext NS_CONTEXT;
- static {
- NS_CONTEXT = new SimpleNamespaceContext();
- NS_CONTEXT.addNamespace("saml", "urn:oasis:names:tc:SAML:1.0:assertion");
- NS_CONTEXT.addNamespace("samlp", "urn:oasis:names:tc:SAML:1.0:protocol");
- NS_CONTEXT.addNamespace("pr", "http://reference.e-government.gv.at/namespace/persondata/20020228#");
- }
-
- /**
- * Servlet wird von MOA-ID-AUTH nach erfolgter Authentisierung über ein Redirect aufgerufen.
- */
- protected void doGet(HttpServletRequest req, HttpServletResponse resp)
- throws ServletException, IOException {
-
- // Parameter "Target" und "SAMLArtifact" aus dem Redirect von MOA-ID-AUTH lesen
- String target = req.getParameter("Target");
- String samlArtifact = req.getParameter("SAMLArtifact");
-
- try {
- // DOMBuilder instanzieren
- DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
- factory.setNamespaceAware(true);
- DocumentBuilder builder = factory.newDocumentBuilder();
-
- // <samlp:Request> zusammenstellen und in einen DOM-Baum umwandeln
- String samlRequest =
- "<?xml version=\"1.0\" encoding=\"UTF-8\"?><samlp:Request IssueInstant=\"2003-01-01T00:00:00+02:00\" MajorVersion=\"1\" MinorVersion=\"0\" RequestID=\"12345678901234567890\" xmlns:samlp=\"urn:oasis:names:tc:SAML:1.0:protocol\"><samlp:AssertionArtifact>"
- + samlArtifact
- + "</samlp:AssertionArtifact></samlp:Request>";
- Document root_request = builder.parse(new ByteArrayInputStream(samlRequest.getBytes()));
-
- // Neues SOAPBodyElement anlegen und mit dem DOM-Baum füllen
- SOAPBodyElement body = new SOAPBodyElement(root_request.getDocumentElement());
- SOAPBodyElement[] params = new SOAPBodyElement[] { body };
-
- // AXIS-Service für Aufruf von MOA-ID-AUTH instanzieren
- Service service = ServiceFactory.newInstance().createService(SERVICE_QNAME);
-
- // Axis-Call erzeugen und mit Endpoint verknüpfen
- Call call = service.createCall();
- call.setTargetEndpointAddress(ENDPOINT);
-
- // Call aufrufen und die Antwort speichern
- System.out.println("Calling MOA-ID-AUTH ...");
- Vector responses = (Vector) call.invoke(params);
-
- // erstes BodyElement auslesen
- SOAPBodyElement response = (SOAPBodyElement) responses.get(0);
-
- // <samlp:Response> als DOM-Baum holen
- Document responseDocument = response.getAsDocument();
- Element samlResponse = responseDocument.getDocumentElement();
-
- // <samlp:Response> auf System.out ausgeben
- System.out.println("Response received:");
- OutputFormat format = new OutputFormat((Document) responseDocument);
- format.setLineSeparator(LineSeparator.Windows);
- format.setIndenting(true);
- format.setLineWidth(0);
- XMLSerializer serializer = new XMLSerializer(System.out, format);
- serializer.asDOMSerializer();
- serializer.serialize(responseDocument);
-
- // <samlp:StatusCode> auslesen
- Attr statusCodeAttr = (Attr)getNode(samlResponse, "/samlp:Response/samlp:Status/samlp:StatusCode/@Value");
- String samlStatusCode = statusCodeAttr.getValue();
- System.out.println("StatusCode: " + samlStatusCode);
-
- // <saml:Assertion> auslesen
- if ("samlp:Success".equals(samlStatusCode)) {
- Element samlAssertion = (Element)getNode(samlResponse, "/samlp:Response/saml:Assertion");
-
- // FamilyName aus der <saml:Assertion> parsen
- Node familyNameNode = getNode(samlAssertion, "//saml:AttributeStatement/saml:Attribute[@AttributeName=\"PersonData\"]/saml:AttributeValue/pr:Person/pr:Name/pr:FamilyName");
- String familyName = getText(familyNameNode);
- System.out.println("Family name: " + familyName);
-
- // weitere Anmeldedaten aus der <saml:Assertion> parsen
- // ...
-
- // Anmeldedaten und Target in der HTTPSession speichern
- HttpSession session = req.getSession();
- session.setAttribute("UserFamilyName", familyName);
- session.setAttribute("Geschaeftsbereich", target);
-
- // weitere Anmeldedaten in der HTTPSession speichern
- // ...
-
- // Redirect auf die eigentliche Startseite
- resp.sendRedirect("/index.jsp");
- }
- }
- catch (Exception ex) {
- ex.printStackTrace();
- }
- }
- /** Returns the first node matching an XPath expression. */
- private static Node getNode(Node contextNode, String xpathExpression) throws JaxenException {
- DOMXPath xpath = new DOMXPath(xpathExpression);
- xpath.setNamespaceContext(NS_CONTEXT);
- return (Node) xpath.selectSingleNode(contextNode);
- }
- /** Returns the text that a node contains. */
- public static String getText(Node node) {
- if (!node.hasChildNodes()) {
- return "";
- }
-
- StringBuffer result = new StringBuffer();
- NodeList list = node.getChildNodes();
- for (int i = 0; i < list.getLength(); i++) {
- Node subnode = list.item(i);
- if (subnode.getNodeType() == Node.TEXT_NODE) {
- result.append(subnode.getNodeValue());
- } else if (subnode.getNodeType() == Node.CDATA_SECTION_NODE) {
- result.append(subnode.getNodeValue());
- } else if (subnode.getNodeType() == Node.ENTITY_REFERENCE_NODE) {
- // Recurse into the subtree for text
- // (and ignore comments)
- result.append(getText(subnode));
- }
- }
- return result.toString();
- }
-}