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Diffstat (limited to 'spss.slinterface/src/at/gv/egovernment/moa/spss/slinterface/filters/SL2MOAFilter.java')
-rw-r--r--spss.slinterface/src/at/gv/egovernment/moa/spss/slinterface/filters/SL2MOAFilter.java381
1 files changed, 0 insertions, 381 deletions
diff --git a/spss.slinterface/src/at/gv/egovernment/moa/spss/slinterface/filters/SL2MOAFilter.java b/spss.slinterface/src/at/gv/egovernment/moa/spss/slinterface/filters/SL2MOAFilter.java
deleted file mode 100644
index d73dbdfd2..000000000
--- a/spss.slinterface/src/at/gv/egovernment/moa/spss/slinterface/filters/SL2MOAFilter.java
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * Created on 18.11.2003
- *
- * (c) Stabsstelle IKT-Strategie des Bundes
- */
-package at.gv.egovernment.moa.spss.slinterface.filters;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.CharArrayReader;
-import java.io.IOException;
-import java.io.Reader;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
-
-import javax.servlet.Filter;
-import javax.servlet.FilterChain;
-import javax.servlet.FilterConfig;
-import javax.servlet.RequestDispatcher;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.HttpSession;
-
-import org.apache.commons.fileupload.DiskFileUpload;
-import org.apache.commons.fileupload.FileItem;
-import org.apache.commons.fileupload.FileUpload;
-import org.apache.commons.fileupload.FileUploadException;
-import org.apache.log4j.Level;
-import org.apache.log4j.Logger;
-import org.apache.xerces.parsers.DOMParser;
-import org.w3c.dom.Document;
-import org.xml.sax.InputSource;
-import org.xml.sax.SAXException;
-
-import at.gv.egovernment.moa.spss.slinterface.Constants;
-import at.gv.egovernment.moa.spss.slinterface.beans.ChecksInfoBean;
-import at.gv.egovernment.moa.spss.slinterface.beans.DataInfoBean;
-import at.gv.egovernment.moa.spss.slinterface.beans.SignerInfoBean;
-import at.gv.egovernment.moa.spss.slinterface.moainvoker.MOAInvoker;
-import at.gv.egovernment.moa.spss.slinterface.servlets.SLRequest;
-import at.gv.egovernment.moa.spss.slinterface.transformers.MOA2SL;
-import at.gv.egovernment.moa.spss.slinterface.transformers.SL2MOA;
-
-/**
- * @author Gregor Karlinger (mailto:gregor.karlinger@cio.gv.at)
- */
-public class SL2MOAFilter implements Filter
-{
- private static Logger logger_ = Logger.getLogger(Constants.LH_FILTERS_);
-
- private FilterConfig config_;
-
- /* ---------------------------------------------------------------------------------------------------- */
-
- /**
- * @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
- */
- public void init(FilterConfig config) throws ServletException
- {
- // Store filter configuration
- config_ = config;
- }
-
- /* ---------------------------------------------------------------------------------------------------- */
-
- /**
- * @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse,
- * javax.servlet.FilterChain)
- */
- public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
- throws IOException, ServletException
- {
- // It is necessary to set the content type header already here, because for any unknown reason setting
- // it in the response JSP page has no effects at all. Perhaps any of the filters or the like already
- // writes to the response output stream.
- HttpServletResponse httpResponse = (HttpServletResponse) response;
- httpResponse.setHeader("Content-Type", "text/html; charset=ISO-8859-1");
-
- // Create session
- HttpSession session = ((HttpServletRequest) request).getSession(true);
-
- // Check if request is HTTP-POST
- checkHttpPost((HttpServletRequest) request);
-
- // Remember remote IP address for later URL rewriting
- session.setAttribute("remoteAddr", request.getRemoteAddr());
-
- // Get SL request from content of request
- SLRequest slRequest = parseRequest((HttpServletRequest) request);
- session.setAttribute("slRequest", slRequest);
-
- // Schema validate SL request
- CharArrayReader slXmlRequestCAR = new CharArrayReader(slRequest.xmlRequest_.toCharArray());
- Document slXMLRequestDoc = parseSlXmlRequest(slXmlRequestCAR);
- logger_.debug("Finnished schema validating SL request.");
-
- // Transform SL request into a MOA SPSS request
- Properties initProps = (Properties)config_.getServletContext().getAttribute(Constants.WSCP_INIT_PROPS_);
- String trustProfileId = initProps.getProperty(Constants.IP_SP_TRUSTPROFILEID_);
- Document moaXMLRequestDoc = SL2MOA.toMoaVerifyXMLSignatureRequest(slXMLRequestDoc, trustProfileId);
- ByteArrayOutputStream moaRequestBOS = new ByteArrayOutputStream();
- MOAInvoker.serializeDocument(moaXMLRequestDoc, moaRequestBOS);
- logger_.debug("SL request transformed into MOA request:\n" + moaRequestBOS);
- ByteArrayInputStream moaRequestIS = new ByteArrayInputStream(moaRequestBOS.toByteArray());
- logger_.debug("Finnished transforming SL request into a MOA SP request.");
-
- // Invoke MOA SPSS
- RequestWrapper requestWrapper = new RequestWrapper((HttpServletRequest) request, moaRequestIS);
- ResponseWrapper responseWrapper = new ResponseWrapper((HttpServletResponse) response);
- chain.doFilter(requestWrapper, responseWrapper);
- logger_.debug("Finnished invoking MOA SP service.");
-
- // Parse MOA response
- DOMParser xmlParser = (DOMParser) config_.getServletContext().getAttribute(Constants.WSCP_XMLPARSER_);
- ServletOutputStream moaResponseSOS = (ServletOutputStream) responseWrapper.getOutputStream();
- ByteArrayInputStream moaResponseBIS = new ByteArrayInputStream(moaResponseSOS.toByteArray());
- InputSource responseSource = new InputSource(moaResponseBIS);
- Document moaResponseDoc;
- try
- {
- xmlParser.parse(responseSource);
- moaResponseDoc = xmlParser.getDocument();
- }
- catch (SAXException e)
- {
- String message = "Parsing MOA XML response failed.";
- logger_.error(message, e);
- throw new ServletException(message, e);
- }
- logger_.debug("Finnished parsing MOA SP response.");
-
- // Create bean with info about signed data
- try
- {
- DataInfoBean dataInfo = new DataInfoBean(
- moaXMLRequestDoc,
- moaResponseDoc,
- ((HttpServletRequest) request).getContextPath(),
- session,
- config_.getServletContext());
- session.setAttribute("dataInfo", dataInfo);
- }
- catch (Exception e)
- {
- String message = "Creating DataInfobean failed.";
- logger_.error(message, e);
- throw new ServletException(message, e);
- }
- logger_.debug("Finnished creating bean with info about signed data.");
-
- // Transform MOA response into a SL response
- Document slResponseDoc;
- slResponseDoc = MOA2SL.toSlVerifyXMLSignatureResponse(moaResponseDoc);
- session.setAttribute("slResponseDoc", slResponseDoc);
- logger_.debug("Finnished transforming MOA SP response into a SL response.");
-
- // Create bean with info about signer
- SignerInfoBean signerInfo = new SignerInfoBean(slResponseDoc);
- request.setAttribute("signerInfo", signerInfo);
- logger_.debug("Finnished creating bean with info about signer.");
-
- // Create bean with info about checks
- ChecksInfoBean checksInfo = new ChecksInfoBean(slResponseDoc);
- request.setAttribute("checksInfo", checksInfo);
- logger_.debug("Finnished creating bean with info about checks.");
-
- // Include jsp page, which writes the overview information about the verified signature
- try
- {
- RequestDispatcher dispatcher = request.getRequestDispatcher("/pages/resultOverview.jsp");
- dispatcher.include(request, response);
- }
- catch (IOException e)
- {
- String message = "Failed to create result overview page.";
- logger_.error(message, e);
- throw new ServletException(message, e);
- }
- logger_.debug("Finnished SL2MOAFilter.");
- }
-
- /* ---------------------------------------------------------------------------------------------------- */
-
- /**
- * @see javax.servlet.Filter#destroy()
- */
- public void destroy()
- {
- // Nothing to do here at the moment.
- }
-
- /* ---------------------------------------------------------------------------------------------------- */
-
- // TODO Revisit if method can be removed
- /* private void initTransformer(ServletContext context, String initPropStylesheetLoc) throws ServletException
- {
- String stylesheetName =
- (Constants.IP_SL2MOA_STYLESHEET_.equals(initPropStylesheetLoc))
- ? "sl2Moa"
- : "moa2Sl";
-
- String contextAttrName =
- (Constants.IP_SL2MOA_STYLESHEET_.equals(initPropStylesheetLoc))
- ? Constants.WSCP_SL2MOA_TRANSFORMER_
- : Constants.WSCP_MOA2SL_TRANSFORMER_;
-
- TransformerFactory transformerFactory = TransformerFactory.newInstance();
- Properties initProps = (Properties) context.getAttribute(Constants.WSCP_INIT_PROPS_);
- String stylesheetLoc = initProps.getProperty(initPropStylesheetLoc);
- InputStream stylesheetIS = context.getResourceAsStream(stylesheetLoc);
- if (stylesheetIS == null)
- {
- String message =
- "Cannot load " + stylesheetName + " stylesheet from location \"" + stylesheetLoc + "\".";
- logger_.error(message);
- throw new ServletException(message);
- }
- Transformer transformer;
- try
- {
- StreamSource stylesheetSS = new StreamSource(stylesheetIS);
- transformer = transformerFactory.newTransformer(stylesheetSS);
- }
- catch (TransformerConfigurationException e)
- {
- String message = "Cannot create XSLT transformer with " + stylesheetName + " stylesheet.";
- logger_.error(message, e);
- throw new ServletException(message, e);
- }
- context.setAttribute(contextAttrName, transformer);
- }*/
-
- /* ---------------------------------------------------------------------------------------------------- */
-
- /**
- * Parses the http request.
- */
- private SLRequest parseRequest(HttpServletRequest request) throws IOException
- {
- SLRequest slRequest = new SLRequest();
-
- // Check if request URL ends with "http-security-layer-request"
- // @TODO Don't know if this check is sufficient - spec says request URL must have this value as path
- String requestURI = request.getRequestURI();
- if (!requestURI.endsWith(Constants.SLC_NAME_HTTP_REQUEST_))
- {
- String message = "Request does not end with \"" + Constants.SLC_NAME_HTTP_REQUEST_ + "\".";
- logger_.error(message);
- throw new IOException(message);
- }
-
- if (FileUpload.isMultipartContent(request))
- {
- // Request is encoded as mulitpart/form-data
- List items;
- try
- {
- DiskFileUpload upload = new DiskFileUpload();
- items = upload.parseRequest(request);
- }
- catch (FileUploadException e)
- {
- String message = "Cannot parse multipart/form-data request.";
- logger_.error(message);
- throw new IOException(message);
- }
-
- Iterator itemsIt = items.iterator();
- while (itemsIt.hasNext())
- {
- FileItem currItem = (FileItem) itemsIt.next();
- String currItemName = currItem.getFieldName();
- if (Constants.SLC_NAME_XML_REQUEST_.equals(currItemName))
- slRequest.xmlRequest_ = currItem.getString();
- else if (Constants.SLC_NAME_DATA_URL_.equals(currItemName))
- slRequest.dataUrl_ = currItem.getString();
- else if (Constants.SLC_NAME_STYLESHEET_URL_.equals(currItemName))
- slRequest.stylesheetUrl_ = currItem.getString();
- else if (Constants.SLC_NAME_REDIRECT_URL_.equals(currItemName))
- slRequest.redirectUrl_ = currItem.getString();
- else
- continue; // @TODO Do not evaluate other params at the moment
- }
- }
- else
- {
- // Request is encoded as application/x-www-form-urlencoded
- Map paramsMap = request.getParameterMap();
- Iterator paramNames = paramsMap.keySet().iterator();
- while (paramNames.hasNext())
- {
- String currName = (String) paramNames.next();
- String[] currValues = (String[]) paramsMap.get(currName);
- if (Constants.SLC_NAME_XML_REQUEST_.equals(currName))
- slRequest.xmlRequest_ = currValues[0];
- else if (Constants.SLC_NAME_DATA_URL_.equals(currName))
- slRequest.dataUrl_ = currValues[0];
- else if (Constants.SLC_NAME_STYLESHEET_URL_.equals(currName))
- slRequest.stylesheetUrl_ = currValues[0];
- else if (Constants.SLC_NAME_REDIRECT_URL_.equals(currName))
- slRequest.redirectUrl_ = currValues[0];
- else
- continue; // @TODO Do not evaluate other params at the moment
- }
- }
-
- if (slRequest.xmlRequest_ == null || slRequest.dataUrl_ == null ||
- slRequest.stylesheetUrl_ != null || slRequest.redirectUrl_ != null)
- {
- // @TODO Only combination of XMLRequest and DataURL allowed at the moment
- String message = "Currently only (XMLRequest + DataURL) is supported.";
- logger_.error(message);
- throw new IOException(message);
- }
-
- return slRequest;
- }
-
- /* ---------------------------------------------------------------------------------------------------- */
-
- private Document parseSlXmlRequest(Reader slXmlRequest) throws ServletException
- {
- // Parse sl request
- InputSource slXMLRequestIS = new InputSource(slXmlRequest);
- Document slXmlRequestDoc = null;
- try
- {
- DOMParser xmlParser = (DOMParser) config_.getServletContext().getAttribute(Constants.WSCP_XMLPARSER_);
- xmlParser.parse(slXMLRequestIS);
- slXmlRequestDoc = xmlParser.getDocument();
- }
- catch (Exception e)
- {
- String message = "Parsing Security-Layer request failed.";
- logger_.error(message, e);
- throw new ServletException(message, e);
- }
- if (logger_.getEffectiveLevel().isGreaterOrEqual(Level.DEBUG))
- {
- ByteArrayOutputStream debugOutputStream = new ByteArrayOutputStream();
- try
- {
- MOAInvoker.serializeDocument(slXmlRequestDoc, debugOutputStream);
- logger_.debug("XML-Request received:\n" + debugOutputStream);
- }
- catch (IOException e)
- {
- // No debug output if this fails
- }
- }
-
- // Check if namespace is correct
- String namespaceURI = slXmlRequestDoc.getDocumentElement().getNamespaceURI();
- if (!Constants.NSURI_SL_11_.equals(namespaceURI) && !Constants.NSURI_SL_12_.equals(namespaceURI))
- {
- String message = "XML request has invalid namespace: \"" + namespaceURI + "\".";
- logger_.error(message);
- throw new ServletException(message);
- }
-
- return slXmlRequestDoc;
- }
-
- /* ---------------------------------------------------------------------------------------------------- */
-
- private void checkHttpPost(HttpServletRequest request) throws ServletException
- {
- String method = request.getMethod();
- if (!"POST".equals(method))
- {
- String message = "HTTP method \"" + method + "\" not supported. Must be \"POST\".";
- logger_.error(message);
- throw new ServletException(message);
- }
- }
-}