diff options
Diffstat (limited to 'src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/VerifyServlet.java')
| -rw-r--r-- | src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/VerifyServlet.java | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/VerifyServlet.java b/src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/VerifyServlet.java deleted file mode 100644 index 71324fe..0000000 --- a/src/main/java/at/knowcenter/wag/egov/egiz/web/servlets/VerifyServlet.java +++ /dev/null @@ -1,466 +0,0 @@ -/*
- * <copyright> Copyright (c) 2006 by Know-Center, Graz, Austria </copyright>
- *
- * This software is the confidential and proprietary information of Know-Center,
- * Graz, Austria. You shall not disclose such Confidential Information and shall
- * use it only in accordance with the terms of the license agreement you entered
- * into with Know-Center.
- *
- * KNOW-CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
- * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
- * NON-INFRINGEMENT. KNOW-CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY
- * LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
- * DERIVATIVES.
- *
- * $Id: Verify.java,v 1.7 2006/10/11 07:39:13 wprinz Exp $
- */
-package at.knowcenter.wag.egov.egiz.web.servlets;
-
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Iterator;
-import java.util.List;
-
-import javax.servlet.RequestDispatcher;
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import org.apache.commons.fileupload.FileItem;
-import org.apache.commons.fileupload.FileUploadException;
-import org.apache.commons.fileupload.disk.DiskFileItemFactory;
-import org.apache.commons.fileupload.servlet.ServletFileUpload;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-import at.gv.egiz.pdfas.exceptions.ErrorCode;
-import at.gv.egiz.pdfas.framework.DataSourceHolder;
-import at.gv.egiz.pdfas.framework.config.SettingsHelper;
-import at.gv.egiz.pdfas.framework.input.DataSource;
-import at.gv.egiz.pdfas.framework.input.ExtractionStage;
-import at.gv.egiz.pdfas.framework.input.PdfDataSource;
-import at.gv.egiz.pdfas.framework.input.TextDataSource;
-import at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters;
-import at.gv.egiz.pdfas.utils.WebUtils;
-import at.gv.egiz.pdfas.web.VerifySessionInformation;
-import at.gv.egiz.pdfas.web.helper.TempDirHelper;
-import at.knowcenter.wag.egov.egiz.PdfAS;
-import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;
-import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
-import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
-import at.knowcenter.wag.egov.egiz.exceptions.SettingNotFoundException;
-import at.knowcenter.wag.egov.egiz.pdf.NoSignatureHolder;
-import at.knowcenter.wag.egov.egiz.pdf.SignatureHolder;
-import at.knowcenter.wag.egov.egiz.sig.ConnectorFactory;
-import at.knowcenter.wag.egov.egiz.sig.SignatureResponse;
-import at.knowcenter.wag.egov.egiz.web.FormFields;
-import at.knowcenter.wag.egov.egiz.web.LocalRequestHelper;
-import at.knowcenter.wag.egov.egiz.web.SessionAttributes;
-
-/**
- * This method is the verify servlet for the pdf-as web application. It takes
- * get and post requests fill out jsp templates and give the user feedback about
- * the results of the verify process.
- *
- * @author wlackner
- * @author wprinz
- */
-public class VerifyServlet extends HttpServlet
-{
-
- /**
- * SVUID.
- */
- private static final long serialVersionUID = 309198792358636766L;
-
- /**
- * The log.
- */
- private static Log log = LogFactory.getLog(SignServlet.class);
-
- protected void dispatch(HttpServletRequest request, HttpServletResponse response, String resource) throws ServletException, IOException
- {
- response.setContentType("text/html"); //$NON-NLS-1$
- response.setCharacterEncoding("UTF-8"); //$NON-NLS-1$
-
- RequestDispatcher disp = getServletContext().getRequestDispatcher(resource);
- disp.forward(request, response);
- }
-
- protected void dispatchToResults(List results, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
- {
- request.setAttribute("results", results); //$NON-NLS-1$
- dispatch(request, response, "/jsp/results.jsp"); //$NON-NLS-1$
- }
-
- /**
- * Processes the verify upload.
- *
- * @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest,
- * javax.servlet.http.HttpServletResponse)
- */
- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
- {
- // for performance measurement
- long startTime = 0;
- long fileSize = 0;
- if (log.isInfoEnabled()) {
- startTime = System.currentTimeMillis();
- }
- try
- {
- UploadedData ud = retrieveUploadedDataFromRequest(request);
-
- VerifySessionInformation si = new VerifySessionInformation();
- si.connector = ud.sig_app;
- si.application = "verify";
- si.mode = null;
- si.inputDataSource = ud.dataSource;
- si.type = null;
-// si.user_name = null;
-// si.user_password = null;
-
- // List signature_holders = extractSignatureHoldersFromFile(ud.file_name,
- // ud.file_data);
- List signature_holders = extractSignatureHolders(new DataSourceHolder(ud.dataSource));
-
- TempDirHelper.storeTextSignatureHoldersIfApplicable(signature_holders, "_textholder.utf8.txt");
-
- si.signature_holders = signature_holders;
-
- request.getSession().setAttribute(SessionAttributes.ATTRIBUTE_SESSION_INFORMATION, si);
-
- if (ud.preview)
- {
- dispatch(request, response, "/jsp/verifylist.jsp");
- // VerifyPreview.formatPreview(signature_holders, connector, request,
- // response);
- }
- else
- {
- if (ConnectorFactory.isConnectorLocal(si.connector))
- {
- String dispatch_to = LocalRequestHelper.processLocalVerify(si, si.signature_holders, request, response);
-
- dispatch(request, response, dispatch_to);
- return;
- }
-
- String host = request.getServerName();
- // TODO still required for old communication with MOA-SS/SP
-// URL loc_ref_URL = new URL(WebUtils.addJSessionID(LocalRequestHelper.getLocalContextAddress(request, response) + "/RetrieveSignatureData", request));
- URL loc_ref_URL = new URL(WebUtils.buildRetrieveSignatureDataURL(request, response));
- String loc_ref_url = response.encodeURL(loc_ref_URL.toString());
-
- List results = PdfAS.verifySignatureHoldersWeb(signature_holders, si, loc_ref_url);
- dispatchToResults(results, request, response);
-
- // for performance measurement
- if (log.isInfoEnabled()) {
- long endTime = System.currentTimeMillis();
- String toReport = "VERIFY;"+ ud.file_name + ";"+ 0 + ";" + (endTime - startTime) + ";" + debugVerifyResults(results);
- log.info(toReport);
- }
-
- }
-
- }
- catch (FileUploadException e)
- {
- request.setAttribute("error", "Fehler beim Upload der Daten");
- request.setAttribute("cause", "Beim Upload der Daten ist ein Fehler aufgetreten.");
- dispatch(request, response, "/jsp/error_verify.jsp");
- }
- catch (PresentableException e)
- {
- log.error(e.getMessage(), e);
- SignServlet.prepareDispatchToErrorPage(e, request);
- dispatch(request, response, "/jsp/error_verify.jsp");
- }
-
- }
-
- protected UploadedData retrieveUploadedDataFromRequest(HttpServletRequest request) throws ServletException, UnsupportedEncodingException, FileUploadException, PDFDocumentException
- {
- DiskFileItemFactory fif = new DiskFileItemFactory();
- fif.setRepository(SettingsReader.getTemporaryDirectory());
- ServletFileUpload sfu = new ServletFileUpload(fif);
-
- List items = sfu.parseRequest(request);
-
- FileItem upload_fi = null;
- FileItem connector_fi = null;
- // FileItem mode_fi = null;
- FileItem preview_fi = null;
-
- String characterEncoding = request.getCharacterEncoding();
- log.debug("request character encoding = " + characterEncoding);
-
- {
- Iterator it = items.iterator();
- while (it.hasNext())
- {
- FileItem item = (FileItem) it.next();
- log.debug("item = " + item.getFieldName()); //$NON-NLS-1$
-
- if (item.isFormField())
- {
- String item_string = item.getString("UTF-8"); //$NON-NLS-1$
- log.debug(" form field string = " + item_string); //$NON-NLS-1$
- }
- else
- {
- log.debug(" filename = " + item.getName()); //$NON-NLS-1$
- log.debug(" filesize = " + item.getSize()); //$NON-NLS-1$
- }
-
- if (item.getFieldName().equals(FormFields.FIELD_UPLOAD))
- {
- upload_fi = item;
- continue;
- }
-
- if (item.getFieldName().equals(FormFields.FIELD_CONNECTOR))
- {
- connector_fi = item;
- continue;
- }
-
- // if (item.getFieldName().equals(FormFields.FIELD_MODE))
- // {
- // mode_fi = item;
- // continue;
- // }
-
- if (item.getFieldName().equals(FormFields.FIELD_PREVIEW))
- {
- preview_fi = item;
- continue;
- }
-
- throw new ServletException("unrecognized POST data."); //$NON-NLS-1$
- }
- }
-
- if (upload_fi == null || connector_fi == null || /* mode_fi == null || */preview_fi == null)
- {
- throw new ServletException("Unsufficient data provided in request."); //$NON-NLS-1$
- }
-
- String connector = connector_fi.getString("UTF-8"); //$NON-NLS-1$
-
- // String mode = mode_fi.getString("UTF-8");
- // if (!mode.equals(FormFields.VALUE_MODE_BINARY) &&
- // !mode.equals(FormFields.VALUE_MODE_TEXTUAL))
- // {
- // throw new ServletException("The mode '" + mode + "' is unrecognized.");
- // }
-
- String preview_str = preview_fi.getString("UTF-8"); //$NON-NLS-1$
- if (!preview_str.equals(FormFields.VALUE_TRUE) && !preview_str.equals(FormFields.VALUE_FALSE))
- {
- throw new ServletException("The preview '" + preview_str + "' is unrecognized."); //$NON-NLS-1$//$NON-NLS-2$
- }
- boolean preview = false;
- if (preview_str.equals(FormFields.VALUE_TRUE))
- {
- preview = true;
- }
-
- // process the request
- DataSource dataSource = convertUploadToDataSource(upload_fi);
-
- UploadedData ud = new UploadedData();
- ud.preview = preview;
- ud.sig_app = connector;
- ud.file_name = upload_fi.getName();
- ud.dataSource = dataSource;
- // ud.file_data = document_bytes;
-
- return ud;
- }
-
- protected DataSource convertUploadToDataSource(FileItem upload_fi) throws PDFDocumentException
- {
- log.debug("file content type =" + upload_fi.getContentType()); //$NON-NLS-1$
- log.debug("file size = " + upload_fi.getSize()); //$NON-NLS-1$
- if (upload_fi.getSize() <= 0)
- {
- throw new PDFDocumentException(250, "The document is empty."); //$NON-NLS-1$
- }
-
-
- // TR: do not check MIME-type of incoming file - might vary depending on the browser used
- if ((upload_fi.getContentType() != null ) && ((upload_fi.getContentType().startsWith("application/pdf") || upload_fi.getContentType().startsWith("application/x-download") )))
- {
- try
- {
- String fileNameSuffix = TempDirHelper.extractFileNameSuffix(upload_fi.getName());
- PdfDataSource pdfDataSource = TempDirHelper.placePdfIntoTempDir(upload_fi.getInputStream(), fileNameSuffix);
- return pdfDataSource;
- }
- catch (IOException e)
- {
- throw new PDFDocumentException(201, "The document could not be placed in the temp dir.", e); //$NON-NLS-1$
- }
- // byte[] document_bytes = upload_fi.get();
- }
-
- try
- {
- String fileNameSuffix = TempDirHelper.extractFileNameSuffix(upload_fi.getName());
- String text = new String(upload_fi.get(), "UTF-8"); //$NON-NLS-1$
- TextDataSource textDataSource = TempDirHelper.placeTextIntoTempDir(text, fileNameSuffix);
- return textDataSource;
- }
- catch (IOException e)
- {
- throw new PDFDocumentException(201, e);
- }
- }
-
- protected List extractSignatureHolders(DataSourceHolder dataSource) throws PresentableException
- {
- VerificationFilterParameters parameters = SettingsHelper.readVerificationFilterParametersFromSettings();
-
- ExtractionStage es = new ExtractionStage();
- List signature_holders = es.extractSignatureHolders(dataSource, parameters);
-
- // filter out NoSignatureHolders that are possibly present due to the direct call method extractSignatureHolders()
- List filtered_signature_holders = new ArrayList();
- Iterator it = signature_holders.iterator();
- while(it.hasNext()) {
- SignatureHolder current = (SignatureHolder) it.next();
- if(!(current instanceof NoSignatureHolder)) {
- filtered_signature_holders.add(current);
- }
- }
-
- if (filtered_signature_holders.size() == 0)
- {
- throw new PDFDocumentException(ErrorCode.DOCUMENT_NOT_SIGNED, "PDF document not signed."); //$NON-NLS-1$
- }
-
- return filtered_signature_holders;
- }
-
- // TODO obsolete method - remove
- // protected List extractSignatureHoldersFromFile(String file_name, byte[]
- // data) throws UnsupportedEncodingException, PresentableException
- // {
- // VerificationFilterParameters parameters = new
- // VerificationFilterParametersImpl(false, false, true);
- // ExtractionStage es = new ExtractionStage();
- // // VerificationFilter vf = new VerificationFilter();
- // List signature_holders = null;
- //
- // String extension = extractExtension(file_name);
- //
- // String raw_text = null;
- // if (file_name == null || (extension != null && extension.equals("txt")))
- // //$NON-NLS-1$
- // {
- // raw_text = new String(data, "UTF-8"); //$NON-NLS-1$
- //
- // signature_holders = es.extractSignatureHolders(new
- // TextDataSourceImpl(raw_text), parameters);
- // // signature_holders = vf.extractSignaturesFromPlainText(raw_text);
- // }
- // else
- // {
- // signature_holders = es.extractSignatureHolders(new
- // ByteArrayPdfDataSourceImpl(data), parameters);
- //
- // // signature_holders = vf.extractSignaturesFromPdf(data);
- // }
- //
- // if (signature_holders.size() == 0)
- // {
- // throw new PDFDocumentException(206, "PDF document not signed.");
- // //$NON-NLS-1$
- // }
- //
- // return signature_holders;
- // }
-
- /**
- * Extracts the extension from a file name string.
- *
- * <p>
- * The extension of a file name is whatever text follows the last '.'.
- * </p>
- *
- * @param file_name
- * The file name.
- * @return Returns the extension. If the file name ends with the '.', then an
- * empty string is returned. If the file name doesn't contain any '.'
- * or file_name is null, null is returned.
- */
- public static String extractExtension(String file_name)
- {
- if (file_name == null)
- {
- return null;
- }
-
- int dot_index = file_name.lastIndexOf('.');
- if (dot_index < 0)
- {
- return null;
- }
- return file_name.substring(dot_index + 1);
- }
-
- protected static class UploadedData
- {
- protected boolean preview = false;
-
- protected String sig_app = null;
-
- protected String file_name = null;
-
- protected DataSource dataSource = null;
- // protected byte[] file_data = null;
- }
-
- /**
- * Formats the verification results for debugging. Returns 0 if no error occurs or the sum of all error-codes.
- *
- * @param results
- *
- * @param writer
- * The output sink to write the formatted text to.
- * @throws SettingNotFoundException
- * Forwarded exception.
- */
- protected static int debugVerifyResults(List results) throws SettingNotFoundException
- {
- int toreturn = 0;
- Iterator it = results.iterator();
- while (it.hasNext())
- {
- SignatureResponse result = (SignatureResponse) it.next();
-
- toreturn += Integer.valueOf(result.getSignatureCheckCode()).intValue();
- }
- return toreturn;
- }
-
- public boolean isPDF(byte[] data) {
- final byte[] PDF_MAGIC_NUMBER = { (byte) 0x25, (byte) 0x50, (byte)
- 0x44, (byte) 0x46 }; // %PDF
- if (data == null || data.length < PDF_MAGIC_NUMBER.length) {
- return false;
- }
- byte[] documentHeader = new byte[PDF_MAGIC_NUMBER.length];
- System.arraycopy(data, 0, documentHeader, 0, documentHeader.length);
- return Arrays.equals(documentHeader, PDF_MAGIC_NUMBER);
- }
-
-
-}
\ No newline at end of file |