From 527484bcc0a65c61d50209849f7b3db34f0128f7 Mon Sep 17 00:00:00 2001
From: knowcenter <knowcenter@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Thu, 17 May 2007 15:28:32 +0000
Subject: web

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@87 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../web/servlets/RetrieveSignatureDataServlet.java | 100 +++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/RetrieveSignatureDataServlet.java

(limited to 'src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/RetrieveSignatureDataServlet.java')

diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/RetrieveSignatureDataServlet.java b/src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/RetrieveSignatureDataServlet.java
new file mode 100644
index 0000000..402170c
--- /dev/null
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/RetrieveSignatureDataServlet.java
@@ -0,0 +1,100 @@
+/**
+ * 
+ */
+package at.knowcenter.wag.egov.egiz.web.servlets;
+
+import java.io.IOException;
+
+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.pdf.SignatureHolder;
+import at.knowcenter.wag.egov.egiz.sig.SignatureData;
+import at.knowcenter.wag.egov.egiz.sig.SignatureDataImpl;
+import at.knowcenter.wag.egov.egiz.sig.SignatureObject;
+import at.knowcenter.wag.egov.egiz.tools.CodingHelper;
+import at.knowcenter.wag.egov.egiz.web.SessionAttributes;
+import at.knowcenter.wag.egov.egiz.web.SessionInformation;
+
+/**
+ * Retrieves the Signature Data from the session and returns it.
+ * 
+ * @author wprinz
+ */
+public class RetrieveSignatureDataServlet extends HttpServlet
+{
+
+  /**
+   * SVUID.
+   */
+  private static final long serialVersionUID = -5387006236836240538L;
+
+  /**
+   * The log.
+   */
+  private static Log log = LogFactory.getLog(RetrieveSignatureDataServlet.class);
+
+  /**
+   * @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
+   */
+  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
+  {
+    log.debug("Request for receiving signature data."); //$NON-NLS-1$
+    
+    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);
+    }
+    
+    SignatureData sd = null;
+    if (si.application.equals("sign"))
+    {
+      sd = si.iui.signature_data;
+    }
+    else
+    {
+      SignatureHolder holder = (SignatureHolder) si.signature_holders.get(si.current_operation);
+      SignatureObject s = holder.getSignatureObject();
+      
+      // TODO make better
+      String text_to_be_verified = holder.getSignedText();
+      if (holder.getSignatureObject().isBinary())
+      {
+        byte[] data = CodingHelper.decodeBase64(text_to_be_verified);
+        sd = new SignatureDataImpl(data, "application/pdf");
+      }
+      else
+      {
+        sd = new SignatureDataImpl(text_to_be_verified.getBytes("UTF-8"), "text/plain", "UTF-8");
+      }
+
+    }
+
+    log.debug("Writing " + sd.getMimeType() + " data:"); //$NON-NLS-1$ //$NON-NLS-2$
+    
+    response.setContentType(sd.getMimeType());
+    response.setCharacterEncoding(sd.getCharacterEncoding());
+    response.getOutputStream().write(sd.getData());
+    
+    log.debug("Writing SignatureData finished."); //$NON-NLS-1$
+  }
+
+  
+}
-- 
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