null
- * @param loginParameters parameter name/values to be inserted for purposes of authentication;
- * may be null
- * @param publicURLPrefix prefix of request URL to be substituted for the realURLPrefix
- * @param realURLPrefix prefix of online application URL to substitute the publicURLPrefix
- * @param ssf SSLSocketFactory to use
- * @throws IOException if an I/O error occurs
- */
-private int tunnelRequest(HttpServletRequest req, HttpServletResponse resp, Map loginHeaders, Map loginParameters, String publicURLPrefix, String realURLPrefix, SSLSocketFactory ssf)
- throws IOException {
-
- // collect headers from request
- Map headers = new HashMap();
- for (Enumeration enum = req.getHeaderNames(); enum.hasMoreElements();) {
- String headerKey = (String) enum.nextElement();
- //We ignore any Basic-Auth-Headers from the client
- if (headerKey.equalsIgnoreCase("Authorization"))
- { Logger.debug("Ignoring authorization-header from browser: " +req.getHeader(headerKey) );
- }
- else
- headers.put(headerKey, req.getHeader(headerKey));
- }
- // collect login headers, possibly overwriting headers from request
- if (loginHeaders != null) {
- for (Iterator iter = loginHeaders.keySet().iterator(); iter.hasNext();) {
- String headerKey = (String) iter.next();
- headers.put(headerKey, loginHeaders.get(headerKey));
- }
- }
- // collect parameters from request
- Map parameters = new HashMap();
- for (Enumeration enum = req.getParameterNames(); enum.hasMoreElements();) {
- String paramName = (String) enum.nextElement();
- parameters.put(paramName, req.getParameter(paramName));
- }
- // collect login parameters, possibly overwriting parameters from request
- if (loginParameters != null) {
- for (Iterator iter = loginParameters.keySet().iterator(); iter.hasNext();) {
- String paramName = (String) iter.next();
- parameters.put(paramName, loginParameters.get(paramName));
- }
- }
-
- headers.remove("content-length");
- parameters.remove(PARAM_SAMLARTIFACT);
- parameters.remove(PARAM_TARGET);
-
- ConnectionBuilder cb = ConnectionBuilderFactory.getConnectionBuilder(publicURLPrefix);
- HttpURLConnection conn = cb.buildConnection(req, publicURLPrefix, realURLPrefix, ssf, parameters);
-
- //Set Cookies...
-
- String cookieString = CookieManager.getInstance().getCookie(req.getSession().getId());
- if (cookieString!=null)
- {
- //If we get Cookies from Client, we put them throgh if they dont exist/conflict with the stored Cookies
- for (Iterator iter = headers.keySet().iterator(); iter.hasNext();) {
- String headerKey = (String) iter.next();
- String headerValue = (String) headers.get(headerKey);
- if (headerKey.equalsIgnoreCase("Cookie"))
- CookieManager.getInstance().saveOldCookies(req.getSession().getId(), headerValue);
- }
- cookieString = CookieManager.getInstance().getCookie(req.getSession().getId());
- headers.put("cookie", cookieString);
- }
-
- // set headers as request properties of URLConnection
- for (Iterator iter = headers.keySet().iterator(); iter.hasNext();) {
- String headerKey = (String) iter.next();
- String headerValue = (String) headers.get(headerKey);
- conn.setRequestProperty(headerKey, headerValue);
- Logger.debug("Req header " + headerKey + ": " + headers.get(headerKey));
- if (Logger.isDebugEnabled() && isBasicAuthenticationHeader(headerKey, headerValue)) {
- String credentials = headerValue.substring(6);
- String userIDPassword = new String(Base64Utils.decode(credentials, false));
- Logger.debug(":UserID:Password: :" + userIDPassword + ":");
- }
- }
- // Write out parameters into output stream of URLConnection.
- // On GET request, do not send parameters in any case,
- // otherwise HttpURLConnection would send a POST.
- if (!"get".equalsIgnoreCase(req.getMethod()) && !parameters.isEmpty()) {
- boolean firstParam = true;
- StringWriter sb = new StringWriter();
- for (Iterator iter = parameters.keySet().iterator(); iter.hasNext();) {
- String paramname = (String) iter.next();
- String value = URLEncoder.encode((String) parameters.get(paramname));
- if (firstParam)
- firstParam = false;
- else
- sb.write("&");
- sb.write(paramname);
- sb.write("=");
- sb.write(value);
- Logger.debug("Req param " + paramname + ": " + value);
- }
- PrintWriter reqOut = new PrintWriter(conn.getOutputStream());
- reqOut.write(sb.toString());
- reqOut.flush();
- reqOut.close();
- }
- // connect
- conn.connect();
-
- // Read response status and content type.
- // If the connection returns a 401 disconnect and return
- // otherwise the attempt to read data from that connection
- // will result in an error
-
- if (conn.getResponseCode()==HttpURLConnection.HTTP_UNAUTHORIZED)
- {
- Logger.debug("Found 401... searching cookies");
- String headerKey;
-
- int i = 1;
- CookieManager cm = CookieManager.getInstance();
- while ((headerKey = conn.getHeaderFieldKey(i)) != null) {
- String headerValue = conn.getHeaderField(i);
- if (headerKey.equalsIgnoreCase("set-cookie"))
- { cm.saveCookie(req.getSession().getId(), headerValue);
- cm.add401(req.getSession().getId(),headerValue);
- Logger.debug("Cookie " + headerValue);
- Logger.debug("CookieSession " + req.getSession().getId());
- }
- i++;
- }
-
- conn.disconnect();
- return conn.getResponseCode();
- }
- resp.setStatus(conn.getResponseCode());
- resp.setContentType(conn.getContentType());
-
- // Read response headers
- // Omit response header "content-length" if response header "Transfer-encoding: chunked" is set.
- // Otherwise, the connection will not be kept alive, resulting in subsequent missing requests.
- // See JavaDoc of javax.servlet.http.HttpServlet:
- // When using HTTP 1.1 chunked encoding (which means that the response has a Transfer-Encoding header), do not set the Content-Length header.
- Map respHeaders = new HashMap();
- boolean chunked = false;
- String contentLengthKey = null;
- String transferEncodingKey = null;
- int i = 1;
- String headerKey;
- while ((headerKey = conn.getHeaderFieldKey(i)) != null) {
- String headerValue = conn.getHeaderField(i);
- respHeaders.put(headerKey, headerValue);
- if (isTransferEncodingChunkedHeader(headerKey, headerValue)) {
- chunked = true;
- transferEncodingKey = headerKey;
- }
- CookieManager cm = CookieManager.getInstance();
- if (headerKey.equalsIgnoreCase("set-cookie"))
- { cm.saveCookie(req.getSession().getId(), headerValue);
- Logger.debug("Cookie " + headerValue);
- Logger.debug("CookieSession " + req.getSession().getId());
- }
- if ("content-length".equalsIgnoreCase(headerKey))
- contentLengthKey = headerKey;
- Logger.debug("Resp header " + headerKey + ": " + headerValue);
- i++;
- }
- if (chunked && contentLengthKey != null) {
- respHeaders.remove(transferEncodingKey);
- Logger.debug("Resp header " + transferEncodingKey + " REMOVED");
- }
-
- //Get a Hash-Map of all 401-set-cookies
- HashMap cookies401 = CookieManager.getInstance().get401(req.getSession().getId());
-
- for (Iterator iter = respHeaders.keySet().iterator(); iter.hasNext();) {
- headerKey = (String) iter.next();
-
- if (headerKey.equalsIgnoreCase("Set-Cookie"))
- {
- String headerValue = (String) respHeaders.get(headerKey);
- Logger.debug("Found 'Set-Cookie' in ResponseHeaders: " + headerValue);
- if(!cookies401.containsKey(headerValue.substring(0, headerValue.indexOf("="))))
- {
- // If we dont already have a Set-Cookie-Value for THAT Cookie we create one...
- CookieManager.getInstance().add401(req.getSession().getId(), headerValue);
- }
- }
- }
-
- //write out all Responseheaders != "set-cookie"
- for (Iterator iter = respHeaders.keySet().iterator(); iter.hasNext();) {
- headerKey = (String) iter.next();
- if (!headerKey.equalsIgnoreCase("Set-Cookie"))
- resp.addHeader(headerKey, (String) respHeaders.get(headerKey));
- }
-
- //write out all Responseheaders = "set-cookie"
- cookies401 = CookieManager.getInstance().get401(req.getSession().getId());
- Iterator cookie_i = cookies401.values().iterator();
- while (cookie_i.hasNext()) {
- String element = (String) cookie_i.next();
- resp.addHeader("Set-Cookie", element);
- }
- //Delete all "Set-Cookie" - Values
- CookieManager.getInstance().clear401(req.getSession().getId());
-
- // read response stream
- Logger.debug("Resp from " + conn.getURL().toString() + ": status " + conn.getResponseCode());
- // Load content unless the server lets us know that the content is NOT MODIFIED...
- if (conn.getResponseCode()!=HttpURLConnection.HTTP_NOT_MODIFIED)
- {
- BufferedInputStream respIn = new BufferedInputStream(conn.getInputStream());
- Logger.debug("Got Inputstream");
- BufferedOutputStream respOut = new BufferedOutputStream(resp.getOutputStream());
- Logger.debug("Got Outputstream");
- int ch;
- while ((ch = respIn.read()) >= 0)
- respOut.write(ch);
- respOut.close();
- respIn.close();
- }
- else
- Logger.debug("Found 304 NOT MODIFIED...");
- conn.disconnect();
- Logger.debug("Request done");
-
-
- return conn.getResponseCode();
-}
-/**
- * Determines whether a HTTP header is a basic authentication header of the kind "Authorization: Basic ..."
- *
- * @param headerKey header name
- * @param headerValue header value
- * @return true for a basic authentication header
- */
-private boolean isBasicAuthenticationHeader(String headerKey, String headerValue) {
- if (!"authorization".equalsIgnoreCase(headerKey))
- return false;
- if (headerValue.length() < "basic".length())
- return false;
- String authenticationSchema = headerValue.substring(0, "basic".length());
- return "basic".equalsIgnoreCase(authenticationSchema);
-}
-/**
- * Determines whether a HTTP header is "Transfer-encoding" header with value containing "chunked"
- *
- * @param headerKey header name
- * @param headerValue header value
- * @return true for a "Transfer-encoding: chunked" header
- */
-private boolean isTransferEncodingChunkedHeader(String headerKey, String headerValue) {
- if (!"transfer-encoding".equalsIgnoreCase(headerKey))
- return false;
- return headerValue.indexOf("chunked") >= 0 || headerValue.indexOf("Chunked") >= 0 || headerValue.indexOf("CHUNKED") >= 0;
-}
-
-/**
- * Calls the web application initializer.
- *
- * @see javax.servlet.Servlet#init(ServletConfig)
- */
-public void init(ServletConfig servletConfig) throws ServletException {
- try {
- MOAIDProxyInitializer.initialize();
- Logger.info(MOAIDMessageProvider.getInstance().getMessage("proxy.00", null));
- }
- catch (Exception ex) {
- Logger.fatal(MOAIDMessageProvider.getInstance().getMessage("proxy.06", null), ex);
- throw new ServletException(ex);
- }
-}
-/**
- * Handles an error in proxying the request.
- * " - + MOAIDMessageProvider.getInstance().getMessage("proxy.11", null) - + "
" - + "" - + errorMessage - + "
" - + ""; - resp.setContentType("text/html"); - try { - OutputStream respOut = resp.getOutputStream(); - respOut.write(htmlCode.getBytes()); - respOut.flush(); - } - catch (IOException ioex) { - Logger.error("", ioex); - } -} - -} -- cgit v1.2.3