Performance

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@167 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c

1 files changed, 229 insertions, 0 deletions

diff --git a/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java b/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java
new file mode 100644
index 0000000..55e0051
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+++ b/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java
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+/**

+ * 

+ */

+package at.gv.egiz.pdfas.web.helper;

+

+import java.io.IOException;

+import java.net.URL;

+

+import javax.servlet.RequestDispatcher;

+import javax.servlet.ServletContext;

+import javax.servlet.ServletException;

+import javax.servlet.http.HttpServletRequest;

+import javax.servlet.http.HttpServletResponse;

+

+import org.apache.commons.logging.Log;

+import org.apache.commons.logging.LogFactory;

+

+import at.gv.egiz.pdfas.framework.SignatorFactory;

+import at.gv.egiz.pdfas.framework.signator.Signator;

+import at.gv.egiz.pdfas.web.SignSessionInformation;

+import at.knowcenter.wag.egov.egiz.PdfASID;

+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;

+import at.knowcenter.wag.egov.egiz.framework.signators.DetachedSignator_1_0_0;

+import at.knowcenter.wag.egov.egiz.sig.ConnectorFactory;

+import at.knowcenter.wag.egov.egiz.sig.connectors.Connector;

+import at.knowcenter.wag.egov.egiz.sig.connectors.ConnectorChooser;

+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObject;

+import at.knowcenter.wag.egov.egiz.web.FormFields;

+import at.knowcenter.wag.egov.egiz.web.LocalRequestHelper;

+

+/**

+ * @author wprinz

+ *

+ */

+public class SignServletHelper

+{

+  /**

+   * The log.

+   */

+  private static Log log = LogFactory.getLog(SignServletHelper.class);

+

+  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);

+  }

+

+

+  /**

+   * Prepares the sign.

+   * 

+   * <p>

+   * This prepares the data for both being signed or being previewed.

+   * </p>

+   * 

+   * @param si

+   *          The SessionInformation to be prepared.

+   * @throws PresentableException

+   *           f.e.

+   */

+  public static void prepareSign(SignSessionInformation si) throws PresentableException

+  {

+    log.debug("prepareSign:"); //$NON-NLS-1$

+

+    PdfASID algorithm = FormFields.translateSignatureModeToPdfASID(si.mode);

+    Signator signator = SignatorFactory.createSignator(algorithm);

+

+    // tzefferer: modified

+    // si.iui = signator.prepareSign(si.pdf, si.type, null,

+    // ConnectorFactory.needsSIG_ID(si.connector));

+    si.si = signator.prepareSign(si.pdfDataSource, si.type, si.pos, ConnectorFactory.needsSIG_ID(si.connector));

+    // end modify

+    log.debug("prepareSign finished."); //$NON-NLS-1$

+  }

+  

+  /**

+   * Finishes the sign.

+   * 

+   * <p>

+   * For non local connectors this concludes the sign process, signs the

+   * document and returns the result. For local connectors this initializes the

+   * local sign process and redirects to following servlets.

+   * </p>

+   * 

+   * @param si

+   *          The SessionInformation.

+   * @param request

+   *          The servlet request for dispatching.

+   * @param response

+   *          The servlet response for dispatching.

+   * @param context

+   *          The servlet context for dispatching.

+   * @throws PresentableException

+   *           f.e.

+   * @throws IOException

+   *           f. e.

+   * @throws ServletException

+   *           f. e.

+   */

+  public static void finishSign(SignSessionInformation si, HttpServletRequest request, HttpServletResponse response, ServletContext context) throws PresentableException, IOException, ServletException

+  {

+    log.debug("finishSign:"); //$NON-NLS-1$

+

+    log.debug("connector = " + si.connector); //$NON-NLS-1$

+    if (ConnectorFactory.isConnectorLocal(si.connector))

+    {

+      log.debug("Connector is local -> dispatching to local processing."); //$NON-NLS-1$

+

+      String dispatch_to = LocalRequestHelper.processLocalSign(si, request, response);

+      dispatch(request, response, dispatch_to, context);

+      return;

+    }

+    log.debug("Connector is not local -> finishing the sign."); //$NON-NLS-1$

+

+    PdfASID algorithm = FormFields.translateSignatureModeToPdfASID(si.mode);

+    Signator signator = SignatorFactory.createSignator(algorithm);

+

+    log.debug("RequestURL = " + request.getRequestURL());

+    log.debug("ContextPath = " + request.getContextPath());

+    String host = request.getServerName();

+    URL signature_data_URL = new URL(request.getScheme(), host, request.getServerPort(), request.getContextPath() + "/RetrieveSignatureData");

+    String signature_data_url = response.encodeURL(signature_data_URL.toString());

+

+    Connector c = ConnectorChooser.chooseWebConnectorForSign(si.connector, si.type, signature_data_url);

+    SignSignatureObject signSignatureObject = c.doSign(si.si.getSignatureData());

+    

+    si.si.setSignSignatureObject(signSignatureObject);

+

+    si.output = TempDirHelper.createTempDataSink(si.filename + "_signed.pdf"); 

+    signator.finishSign(si.si, si.output);

+

+    returnSignResponse(si, response);

+

+    log.debug("finishSign finished."); //$NON-NLS-1$

+  }

+  

+  /**

+   * Returns the data in the SignResult with proper content disposition.

+   * 

+   * @param si

+   *          SessionInformation.

+   * @param response

+   *          The servlet response.

+   * @throws IOException

+   *           The IO Exception.

+   */

+  public static void returnSignResponse(SignSessionInformation si, HttpServletResponse response) throws IOException

+  {

+//    SignResult sign_result = si.sign_result;

+

+    String file_name = formatFileNameForSignResult(si.filename, si.output.getMimeType());

+

+    // tzefferer: added condition

+    if (si.exappinf == null)

+    {

+

+      // The name parameter is actually deprecated in favour of

+      // Content-Disposition filename

+      // Unfortunately Acrobat reader does recognize neither of these parameters

+      // with its inline save-as. It always takes the page name.

+      response.setContentType(si.output.getMimeType() + "; name=\"" + file_name + "\"");

+      if (si.download_inline)

+      {

+        response.addHeader("Content-Disposition", "inline; filename=\"" + file_name + "\"");

+      }

+      else

+      {

+        response.addHeader("Content-Disposition", "attachment; filename=\"" + file_name + "\"");

+      }

+      

+      TempDirHelper.writeDataSinkToHttpResponse(si.output, response);

+      //response.getOutputStream().write(sign_result.getData());

+      

+      // tzefferer: added else-block

+    }

+    else

+    {

+      // TODO @tzefferer: what is this code?

+      throw new RuntimeException("This has to be refactored.");

+//      SignResult sr = si.sign_result;

+//      byte[] signed_pdf = sr.getData();

+//      PDFContainer entry = new PDFContainer(signed_pdf, si.exappinf.pdf_id);

+//      ProvidePDFServlet.signedDocuments.add(entry);

+//

+//      // notify webapp...

+//      String invoke_url = si.exappinf.invoke_url;

+//

+//      String providePDFServlet = "ProvidePDF";

+//      String pdf_id = String.valueOf(si.exappinf.pdf_id);

+//      String session_id = si.exappinf.session_id;

+//

+//      // build URL

+//      int ind = invoke_url.indexOf("?");

+//      String query = invoke_url.substring(0, ind) + ";jsessionid=" + session_id + invoke_url.substring(ind) + "&" + FormFields.FIELD_PDF_URL + "=" + providePDFServlet + "&" + FormFields.FIELD_PDF_ID

+//          + "=" + pdf_id + "&" + FormFields.FIELD_FILE_LENGTH + "=" + signed_pdf.length;

+//

+//      response.sendRedirect(query);

+

+    }

+

+  }

+  

+  /**

+   * Formats the file name according to the SignResult.

+   * 

+   * @param file_name

+   *          The file name.

+   * @param sign_result

+   *          The sign result.

+   * @return Returns the formatted file name.

+   */

+  public static String formatFileNameForSignResult(String file_name, String mimeType)

+  {

+    String output = file_name + "_signed";

+    if (mimeType.equals(DetachedSignator_1_0_0.MIME_TYPE))

+    {

+      output += ".xml";

+    }

+    else

+    {

+      output += ".pdf";

+    }

+

+    return output;

+  }

+}