1 files changed, 97 insertions, 0 deletions
diff --git a/eaaf_modules/eaaf_module_pvp2_core/src/main/java/at/gv/egiz/eaaf/modules/pvp2/impl/opensaml/HTTPPostEncoderWithOwnTemplate.java b/eaaf_modules/eaaf_module_pvp2_core/src/main/java/at/gv/egiz/eaaf/modules/pvp2/impl/opensaml/HTTPPostEncoderWithOwnTemplate.java
new file mode 100644
index 00000000..d7491a88
--- /dev/null
+++ b/eaaf_modules/eaaf_module_pvp2_core/src/main/java/at/gv/egiz/eaaf/modules/pvp2/impl/opensaml/HTTPPostEncoderWithOwnTemplate.java
@@ -0,0 +1,97 @@
+/*******************************************************************************
+ *******************************************************************************/
+package at.gv.egiz.eaaf.modules.pvp2.impl.opensaml;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+
+import org.apache.velocity.VelocityContext;
+import org.apache.velocity.app.VelocityEngine;
+import org.opensaml.common.binding.SAMLMessageContext;
+import org.opensaml.saml2.binding.encoding.HTTPPostEncoder;
+import org.opensaml.ws.message.encoder.MessageEncodingException;
+import org.opensaml.ws.transport.http.HTTPOutTransport;
+import org.opensaml.ws.transport.http.HTTPTransportUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.gv.egiz.eaaf.core.api.gui.IGUIBuilderConfiguration;
+import at.gv.egiz.eaaf.core.api.gui.IGUIFormBuilder;
+
+/**
+ * @author tlenz
+ *
+ */
+public class HTTPPostEncoderWithOwnTemplate extends HTTPPostEncoder {
+	private static final Logger log = LoggerFactory.getLogger(HTTPPostEncoderWithOwnTemplate.class);
+	
+	
+	private VelocityEngine velocityEngine;
+	private IGUIBuilderConfiguration guiConfig;
+	private IGUIFormBuilder guiBuilder;
+	
+	/**
+	 * @param engine
+	 * @param templateId
+	 */
+	public HTTPPostEncoderWithOwnTemplate(IGUIBuilderConfiguration guiConfig, IGUIFormBuilder guiBuilder, VelocityEngine engine) {
+		super(engine, null);
+		this.velocityEngine = engine;
+		this.guiConfig = guiConfig;
+		this.guiBuilder = guiBuilder;
+		
+	}
+
+    /**
+     * Base64 and POST encodes the outbound message and writes it to the outbound transport.
+     * 
+     * @param messageContext current message context
+     * @param endpointURL endpoint URL to which to encode message
+     * 
+     * @throws MessageEncodingException thrown if there is a problem encoding the message
+     */
+    protected void postEncode(SAMLMessageContext messageContext, String endpointURL) throws MessageEncodingException {
+    	log.debug("Invoking Velocity template to create POST body");
+        InputStream is = null;
+        try {        	
+        	//build Velocity Context from GUI input paramters
+			VelocityContext context = guiBuilder.generateVelocityContextFromConfiguration(guiConfig);
+        	
+			//load template
+			is = guiBuilder.getTemplateInputStream(guiConfig);
+						
+			//populate velocity context with SAML2 parameters
+            populateVelocityContext(context, messageContext, endpointURL);
+
+            //populate transport parameter
+            HTTPOutTransport outTransport = (HTTPOutTransport) messageContext.getOutboundMessageTransport();
+            HTTPTransportUtils.addNoCacheHeaders(outTransport);
+            HTTPTransportUtils.setUTF8Encoding(outTransport);
+            HTTPTransportUtils.setContentType(outTransport, "text/html");
+
+            //evaluate template and write content to response
+            Writer out = new OutputStreamWriter(outTransport.getOutgoingStream(), "UTF-8");                        
+            velocityEngine.evaluate(context, out, "SAML2_POST_BINDING", new BufferedReader(new InputStreamReader(is)));            
+            out.flush();
+            
+        } catch (Exception e) {
+        	log.error("Error invoking Velocity template", e);
+            throw new MessageEncodingException("Error creating output document", e);
+            
+        } finally {
+			if (is != null) {
+				try {
+					is.close();
+					
+				} catch (IOException e) {
+					log.error("Can NOT close GUI-Template InputStream.", e);
+				}
+			}
+        	
+		}
+    }
+}