1 files changed, 169 insertions, 0 deletions
diff --git a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/servlet/VerifyAuthenticationBlockServlet.java b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/servlet/VerifyAuthenticationBlockServlet.java
new file mode 100644
index 000000000..f1fb15be0
--- /dev/null
+++ b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/servlet/VerifyAuthenticationBlockServlet.java
@@ -0,0 +1,169 @@
+/*
+* Copyright 2003 Federal Chancellery Austria
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egovernment.moa.id.auth.servlet;
+
+import java.io.IOException;
+import java.util.Map;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.fileupload.FileUploadException;
+import org.apache.commons.lang.StringEscapeUtils;
+
+import at.gv.egovernment.moa.id.MOAIDException;
+import at.gv.egovernment.moa.id.auth.AuthenticationServer;
+import at.gv.egovernment.moa.id.auth.MOAIDAuthConstants;
+import at.gv.egovernment.moa.id.auth.WrongParametersException;
+import at.gv.egovernment.moa.id.auth.builder.DataURLBuilder;
+import at.gv.egovernment.moa.id.auth.data.AuthenticationSession;
+import at.gv.egovernment.moa.id.util.ParamValidatorUtils;
+import at.gv.egovernment.moa.logging.Logger;
+import at.gv.egovernment.moa.util.URLEncoder;
+
+/**
+ * Servlet requested for verifying the signed authentication block
+ * provided by the security layer implementation.
+ * Utilizes the {@link AuthenticationServer}.
+ * 
+ * @author Paul Ivancsics
+ * @version $Id$
+ */
+public class VerifyAuthenticationBlockServlet extends AuthServlet {
+	
+
+  /**
+   * Constructor for VerifyAuthenticationBlockServlet.
+   */
+  public VerifyAuthenticationBlockServlet() {
+    super();
+  }
+
+  /**
+   * GET requested by security layer implementation to verify
+   * that data URL resource is available.
+   * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest, HttpServletResponse)
+   */
+  protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+    throws ServletException, IOException { 
+    
+	  //doPost(req, resp);
+	  
+		Logger.debug("GET VerifyAuthenticationBlock");
+		
+		resp.setHeader(MOAIDAuthConstants.HEADER_EXPIRES,MOAIDAuthConstants.HEADER_VALUE_EXPIRES);
+		resp.setHeader(MOAIDAuthConstants.HEADER_PRAGMA,MOAIDAuthConstants.HEADER_VALUE_PRAGMA);
+		resp.setHeader(MOAIDAuthConstants.HEADER_CACHE_CONTROL,MOAIDAuthConstants.HEADER_VALUE_CACHE_CONTROL);
+		resp.addHeader(MOAIDAuthConstants.HEADER_CACHE_CONTROL,MOAIDAuthConstants.HEADER_VALUE_CACHE_CONTROL_IE);
+		
+  }
+
+  /**
+   * Verifies the signed authentication block and redirects the browser
+   * to the online application requested, adding a parameter needed for
+   * retrieving the authentication data.
+   * <br>
+   * Request parameters:
+   * <ul>
+   * <li>MOASessionID: ID of associated authentication session</li>
+   * <li>XMLResponse: <code>&lt;CreateXMLSignatureResponse&gt;</code></li>
+   * </ul>
+   * Response:
+   * <ul>
+   * <li>Status: <code>302</code></li>
+   * <li>Header <code>"Location"</code>: URL of the online application requested, with
+   * 						parameters <code>"Target"</code>(only if the online application is
+   *            a public service) and <code>"SAMLArtifact"</code> added</li>
+   * <li>Error status: <code>500</code>
+   * </ul>
+   * @see AuthenticationServer#verifyAuthenticationBlock
+   * @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest, HttpServletResponse)
+   */
+  protected void doPost(HttpServletRequest req, HttpServletResponse resp)
+    throws ServletException, IOException {
+
+		Logger.debug("POST VerifyAuthenticationBlock");
+		
+		resp.setHeader(MOAIDAuthConstants.HEADER_EXPIRES,MOAIDAuthConstants.HEADER_VALUE_EXPIRES);
+		resp.setHeader(MOAIDAuthConstants.HEADER_PRAGMA,MOAIDAuthConstants.HEADER_VALUE_PRAGMA);
+		resp.setHeader(MOAIDAuthConstants.HEADER_CACHE_CONTROL,MOAIDAuthConstants.HEADER_VALUE_CACHE_CONTROL);
+		resp.addHeader(MOAIDAuthConstants.HEADER_CACHE_CONTROL,MOAIDAuthConstants.HEADER_VALUE_CACHE_CONTROL_IE);
+		  
+    Map parameters;
+    try 
+    {
+      parameters = getParameters(req);
+    } catch (FileUploadException e) 
+    {
+      Logger.error("Parsing mulitpart/form-data request parameters failed: " + e.getMessage());
+      throw new IOException(e.getMessage());
+    }
+		String sessionID = req.getParameter(PARAM_SESSIONID);
+		String createXMLSignatureResponse = (String)parameters.get(PARAM_XMLRESPONSE);
+
+		// escape parameter strings
+		sessionID = StringEscapeUtils.escapeHtml(sessionID);
+
+		String redirectURL = null;
+		try {
+         // check parameter
+         if (!ParamValidatorUtils.isValidSessionID(sessionID))
+            throw new WrongParametersException("VerifyAuthenticationBlock", PARAM_SESSIONID, "auth.12");
+         if (!ParamValidatorUtils.isValidXMLDocument(createXMLSignatureResponse))
+            throw new WrongParametersException("VerifyAuthenticationBlock", PARAM_XMLRESPONSE, "auth.12");
+
+         
+			AuthenticationSession session = AuthenticationServer.getSession(sessionID);
+			String samlArtifactBase64 = 
+				AuthenticationServer.getInstance().verifyAuthenticationBlock(sessionID, createXMLSignatureResponse);
+			if (!samlArtifactBase64.equals("Redirect to Input Processor")) {
+			  redirectURL = session.getOAURLRequested();
+  			if (!session.getBusinessService()) {
+          redirectURL = addURLParameter(redirectURL, PARAM_TARGET, URLEncoder.encode(session.getTarget(), "UTF-8"));
+        }
+  			redirectURL = addURLParameter(redirectURL, PARAM_SAMLARTIFACT, URLEncoder.encode(samlArtifactBase64, "UTF-8"));
+  			redirectURL = resp.encodeRedirectURL(redirectURL);
+			} else {
+	      redirectURL = new DataURLBuilder().buildDataURL(session.getAuthURL(), AuthenticationServer.REQ_PROCESS_VALIDATOR_INPUT, session.getSessionID());
+			}
+			resp.setContentType("text/html");
+			resp.setStatus(302);
+			resp.addHeader("Location", redirectURL);
+			Logger.debug("REDIRECT TO: " + redirectURL);
+		}
+    
+		catch (MOAIDException ex) {
+			handleError(null, ex, req, resp);
+		}
+
+  }
+  /**
+   * Adds a parameter to a URL.
+   * @param url the URL
+   * @param paramname parameter name
+   * @param paramvalue parameter value
+   * @return the URL with parameter added
+   */
+  private static String addURLParameter(String url, String paramname, String paramvalue) {
+		String param = paramname + "=" + paramvalue;
+  	if (url.indexOf("?") < 0)
+	  	return url + "?" + param;
+  	else
+  		return url + "&" + param;
+  }
+
+}