1 files changed, 154 insertions, 0 deletions
diff --git a/BKUOnline/src/main/java/at/gv/egiz/bku/online/webapp/ResultServlet.java b/BKUOnline/src/main/java/at/gv/egiz/bku/online/webapp/ResultServlet.java
new file mode 100644
index 00000000..5ffe2399
--- /dev/null
+++ b/BKUOnline/src/main/java/at/gv/egiz/bku/online/webapp/ResultServlet.java
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2008 Federal Chancellery Austria and
+ * Graz University of Technology
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package at.gv.egiz.bku.online.webapp;
+
+import java.io.IOException;
+import java.util.Iterator;
+
+import javax.servlet.ServletConfig;
+import javax.servlet.ServletException;
+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.gv.egiz.bku.binding.HTTPBindingProcessor;
+import at.gv.egiz.bku.binding.HttpUtil;
+import at.gv.egiz.bku.binding.IdFactory;
+import at.gv.egiz.bku.conf.Configurator;
+import at.gv.egiz.bku.utils.NullOutputStream;
+
+/**
+ * Delivers the result to the browser
+ * 
+ */
+public class ResultServlet extends SpringBKUServlet {
+
+  private final static Log log = LogFactory.getLog(ResultServlet.class);
+
+  private String encoding = "UTF-8";
+  private String expiredPage = "./expiredError.jsp";
+
+  public ResultServlet() {
+  }
+
+  private void myInit() {
+    String enc = getServletContext().getInitParameter("responseEncoding");
+    if (enc != null) {
+      log.debug("Init default encoding to: " + enc);
+      encoding = enc;
+    }
+    String expP = getServletConfig().getInitParameter("expiredPage");
+    if (expP != null) {
+      log.debug("Init expired page to: " + expP);
+      expiredPage = expP;
+    }
+  }
+
+  @Override
+  public void init() throws ServletException {
+    super.init();
+    myInit();
+  }
+
+  @Override
+  public void init(ServletConfig config) throws ServletException {
+    super.init(config);
+    myInit();
+  }
+
+  protected void doPost(HttpServletRequest req, HttpServletResponse resp)
+      throws ServletException, IOException {
+    doGet(req, resp);
+  }
+
+  protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+      throws ServletException, java.io.IOException { 
+    String version = configurator.getProperty(Configurator.SIGNATURE_LAYOUT);
+    if ((version != null) && (!"".equals(version.trim()))) {
+      log.debug("setting SignatureLayout header to " + version);
+      resp.setHeader(Configurator.SIGNATURE_LAYOUT, version);
+    } else {
+      log.debug("do not set SignatureLayout header");
+    }
+      
+    if (configurator.getProperty(Configurator.USERAGENT_CONFIG_P) != null) {
+      resp.setHeader(HttpUtil.HTTP_HEADER_SERVER, configurator
+          .getProperty(Configurator.USERAGENT_CONFIG_P));
+    } else {
+      resp.setHeader(HttpUtil.HTTP_HEADER_SERVER,
+              Configurator.USERAGENT_DEFAULT);
+    }
+
+    HttpSession session = req.getSession(false);
+    if (session == null) {
+      resp.sendRedirect(expiredPage);
+      return;
+    }
+    String sessionId = session.getId();
+    if (sessionId == null) {
+      resp.sendRedirect(expiredPage);
+      return;
+    }
+    log.debug("Got a result request for session: " + sessionId);
+    HTTPBindingProcessor bp = (HTTPBindingProcessor) getBindingProcessorManager()
+        .getBindingProcessor(IdFactory.getInstance().createId(sessionId));
+    if (bp == null) {
+      session.invalidate();
+      resp.sendRedirect(expiredPage);
+      return;
+    }
+    String redirectUrl = (String) session
+        .getAttribute(BKURequestHandler.REDIRECT_URL_SESSION_ATTRIBUTE);
+    if (redirectUrl == null) {
+      redirectUrl = bp.getRedirectURL();
+    }
+    if (redirectUrl != null) {
+      try {
+        bp.writeResultTo(new NullOutputStream(), encoding);
+        getBindingProcessorManager().removeBindingProcessor(bp.getId());
+      } finally {
+          log.info("Executing deferred browser redirect to: " + redirectUrl);
+        resp.sendRedirect(redirectUrl);
+        session.invalidate();
+      }
+      return;
+    }
+
+    log.trace("setting response code: " + bp.getResponseCode());
+    resp.setStatus(bp.getResponseCode());
+    resp.setHeader("Cache-Control", "no-store"); // HTTP 1.1
+    resp.setHeader("Pragma", "no-cache"); // HTTP 1.0
+    resp.setDateHeader("Expires", 0);
+    for (Iterator<String> it = bp.getResponseHeaders().keySet().iterator(); it
+        .hasNext();) {
+      String header = it.next();
+      if (log.isTraceEnabled()) {
+        log.trace("setting response header " + header + ": " + bp.getResponseHeaders().get(header));
+      }
+      resp.setHeader(header, bp.getResponseHeaders().get(header));
+    }
+    resp.setContentType(bp.getResultContentType());
+    resp.setCharacterEncoding(encoding);
+    bp.writeResultTo(resp.getOutputStream(), encoding);
+    resp.getOutputStream().flush();
+    session.invalidate();
+    getBindingProcessorManager().removeBindingProcessor(bp.getId());
+  }
+}