1 files changed, 199 insertions, 0 deletions
diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/DataURLServlet.java b/src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/DataURLServlet.java
new file mode 100644
index 0000000..7d7220c
--- /dev/null
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/DataURLServlet.java
@@ -0,0 +1,199 @@
+/**
+ * 
+ */
+package at.knowcenter.wag.egov.egiz.web.servlets;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletContext;
+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 org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+import at.knowcenter.wag.egov.egiz.framework.Signator;
+import at.knowcenter.wag.egov.egiz.framework.SignatorFactory;
+import at.knowcenter.wag.egov.egiz.sig.SignatureResponse;
+import at.knowcenter.wag.egov.egiz.sig.connectors.LocalConnector;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.BKUPostConnection;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.EnvelopedBase64BKUConnector;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.LocRefDetachedBKUConnector;
+import at.knowcenter.wag.egov.egiz.web.FormFields;
+import at.knowcenter.wag.egov.egiz.web.LocalRequest;
+import at.knowcenter.wag.egov.egiz.web.SessionAttributes;
+import at.knowcenter.wag.egov.egiz.web.SessionInformation;
+
+/**
+ * @author wprinz
+ * 
+ */
+public class DataURLServlet extends HttpServlet
+{
+
+  /**
+   * SVUID.
+   */
+  private static final long serialVersionUID = -5846618335843762752L;
+
+  /**
+   * The log.
+   */
+  private static Log log = LogFactory.getLog(DataURLServlet.class);
+
+  protected void dispatch(HttpServletRequest request,
+      HttpServletResponse response, String resource) throws ServletException, IOException
+  {
+    dispatch(request, response, resource, getServletContext());
+  }
+
+  protected static void dispatch(HttpServletRequest request,
+      HttpServletResponse response, String resource, ServletContext context) throws ServletException, IOException
+  {
+    response.setContentType("text/html");
+    response.setCharacterEncoding("UTF-8");
+
+    RequestDispatcher disp = context.getRequestDispatcher(resource);
+    disp.forward(request, response);
+  }
+
+  protected void dispatchToResults(List results, HttpServletRequest request,
+      HttpServletResponse response) throws ServletException, IOException
+  {
+    request.setAttribute("results", results);
+    dispatch(request, response, "/jsp/results.jsp");
+  }
+
+  /**
+   * @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest,
+   *      javax.servlet.http.HttpServletResponse)
+   */
+  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
+  {
+    log.debug("Data URL is accessed."); //$NON-NLS-1$
+
+    HttpSession session = request.getSession(false);
+    if (session == null)
+    {
+      String msg = "There is no session associated with this request."; //$NON-NLS-1$
+      log.error(msg);
+      throw new ServletException(msg);
+    }
+
+    SessionInformation si = (SessionInformation) session.getAttribute(SessionAttributes.ATTRIBUTE_SESSION_INFORMATION);
+    if (si == null)
+    {
+      String msg = "The session is not found or no longer valid."; //$NON-NLS-1$
+      log.error(msg);
+      throw new ServletException(msg);
+    }
+
+    try
+    {
+      log.debug("Request character encoding = " + request.getCharacterEncoding()); //$NON-NLS-1$
+      if (request.getCharacterEncoding() == null || request.getCharacterEncoding().equals("UTF-8")) //$NON-NLS-1$
+      {
+        log.error("The BKU didn't set a character encoding for the request."); //$NON-NLS-1$
+
+        log.warn("Manually setting character encoding to UTF-8"); //$NON-NLS-1$
+        request.setCharacterEncoding("UTF-8"); //$NON-NLS-1$
+      }
+
+      String xml_response = request.getParameter("XMLResponse"); //$NON-NLS-1$
+      log.debug("xml_response = " + xml_response); //$NON-NLS-1$
+
+      if (isNullResponse(xml_response))
+      {
+        log.debug("Received a NullOperationResponse -> answering with the first request."); //$NON-NLS-1$
+
+        assert si.current_operation == 0;
+      }
+      else
+      {
+        log.debug("Recieved a normal response -> storing the response."); //$NON-NLS-1$
+
+        Properties response_properties = new Properties();
+        response_properties.setProperty(BKUPostConnection.RESPONSE_STRING_KEY, xml_response);
+        si.response_properties[si.current_operation] = response_properties;
+
+        si.current_operation++;
+      }
+
+      if (si.current_operation < si.requests.length)
+      {
+        log.debug("There are still requests to be performed -> answering with request #" + si.current_operation); //$NON-NLS-1$
+
+        LocalRequest local_request = si.requests[si.current_operation];
+
+        String request_string = local_request.getRequestString();
+
+        response.setContentType("text/xml");
+        response.setCharacterEncoding("UTF-8");
+        response.getWriter().println(request_string);
+      }
+      else
+      {
+        log.debug("All requests have been processed -> processing the responses."); //$NON-NLS-1$
+
+        if (si.application.equals("sign"))
+        {
+          // Sign
+          
+          if (si.sign_result == null)
+          {
+            LocalConnector c = new LocRefDetachedBKUConnector(si.type, "loc ref content not needed here"); //$NON-NLS-1$
+
+            si.iui.signed_signature_object = c.analyzeSignResponse(si.response_properties[0]);
+
+            PdfASID algorithm = FormFields.translateSignatureModeToPdfASID(si.mode);
+            Signator signator = SignatorFactory.createSignator(algorithm);
+
+            si.sign_result = signator.finishSign(si.iui);
+          }
+
+          SignServlet.returnSignResponse(si, response);
+        }
+        else
+        {
+          // Verify
+          
+          List results = new ArrayList();
+
+          for (int i = 0; i < si.response_properties.length; i++)
+          {
+            LocalConnector c = new LocRefDetachedBKUConnector(si.type, "loc ref content not needed here"); //$NON-NLS-1$
+
+            SignatureResponse sig_resp = c.analyzeVerifyResponse(si.response_properties[i]);
+            results.add(sig_resp);
+          }
+
+          dispatchToResults(results, request, response);
+        }
+      }
+    }
+    catch (PresentableException e)
+    {
+      log.error(e);
+      SignServlet.prepareDispatchToErrorPage(e, request);
+      dispatch(request, response, "/jsp/error.jsp");
+    }
+
+    log.debug("DataURL access finished."); //$NON-NLS-1$
+  }
+
+  protected boolean isNullResponse(String xml_response)
+  {
+    return xml_response.indexOf("NullOperationResponse") >= 0;
+  }
+}