/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* 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 org.apache.cocoon.util;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.httpclient.Cookie;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpURL;
import org.apache.commons.httpclient.cookie.CookieSpecBase;
import org.apache.commons.httpclient.methods.EntityEnclosingMethod;
/**
* This is a generic and externally configurable method, to forward any Request
* to a server.
*
* @author <a href="mailto:gianugo@apache.org">Gianugo Rabellino</a>
* @version $Id: RequestForwardingHttpMethod.java 124700 2005-01-09 02:17:17Z antonio $
*/
public class RequestForwardingHttpMethod extends EntityEnclosingMethod {
/** The request to be forwarded */
HttpServletRequest originalRequest;
/** The HTTPUrl to forward this request to */
HttpURL destination;
public RequestForwardingHttpMethod(HttpServletRequest req, HttpURL destination)
throws IOException {
this.originalRequest = req;
this.destination = destination;
this.setFollowRedirects(true);
this.setPath(req.getRequestURI());
cloneHeaders();
cloneCookies();
setRequestBody(originalRequest.getInputStream());
}
/**
* Dinamically get the method.
*
* @see org.apache.commons.httpclient.HttpMethod#getName()
*/
public String getName() {
return originalRequest.getMethod();
}
/**
* Clone the original request headers.
*
*/
private void cloneHeaders() {
Enumeration e = originalRequest.getHeaderNames();
while (e.hasMoreElements()) {
String header = (String) e.nextElement();
String headerValue = originalRequest.getHeader(header);
this.addRequestHeader(header, headerValue);
}
}
/**
* Clone cookies, if any.
*
*/
private void cloneCookies() {
ArrayList newCookiesList = new ArrayList();
javax.servlet.http.Cookie[] cookies = originalRequest.getCookies();
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
String domain = cookies[i].getDomain();
String name = cookies[i].getName();
String path = cookies[i].getPath();
String value = cookies[i].getValue();
Cookie cookie = new Cookie(domain, path, value);
cookie.setName(name);
newCookiesList.add(cookie);
}
CookieSpecBase cookieFormatter = new CookieSpecBase();
Header cookieHeader =
cookieFormatter.formatCookieHeader((Cookie[])newCookiesList.toArray(new Cookie[newCookiesList.size()]));
this.addRequestHeader(cookieHeader);
}
}
}