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/*
 * Copyright (c) 1998-2012 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package javax.servlet.http;

import javax.servlet.ServletRequest;
import javax.servlet.ServletRequestWrapper;
import javax.servlet.ServletException;
import java.security.Principal;
import java.util.Collection;
import java.util.Enumeration;
import java.io.IOException;

/**
 * Wraps a servlet request in another request.  Filters may
 * use ServletRequestWrapper to modify the headers passed to the servlet.
 *
 * 

The default methods just call the wrapped request methods. * * @since servlet 2.3 */ public class HttpServletRequestWrapper extends ServletRequestWrapper implements HttpServletRequest { // the wrapped request private HttpServletRequest request; /** * Creates a new request wrapper * * @param request the wrapped request */ public HttpServletRequestWrapper(HttpServletRequest request) { super(request); this.request = request; } /** * Sets the request object for the wrapper. * * @param request the wrapped request */ public void setRequest(ServletRequest request) { super.setRequest(request); this.request = (HttpServletRequest) request; } /** * Returns the HTTP method, e.g. "GET" or "POST" * *

Equivalent to CGI's REQUEST_METHOD */ public String getMethod() { return this.request.getMethod(); } /** * Returns the entire request URI */ public String getRequestURI() { return request.getRequestURI(); } /** * Reconstructs the URL the client used for the request. * * @since Servlet 2.3 */ public StringBuffer getRequestURL() { return request.getRequestURL(); } /** * Returns the part of the URI corresponding to the application's * prefix. The first part of the URI selects applications * (ServletContexts). * *

getContextPath() is /myapp for the uri * /myapp/servlet/Hello, */ public String getContextPath() { return request.getContextPath(); } /** * Returns the URI part corresponding to the selected servlet. * The URI is relative to the application. * *

Corresponds to CGI's SCRIPT_NAME * * getServletPath() is /servlet/Hello for the uri * /myapp/servlet/Hello/foo. * * getServletPath() is /dir/hello.jsp * for the uri /myapp/dir/hello.jsp/foo, */ public String getServletPath() { return request.getServletPath(); } /** * Returns the URI part after the selected servlet and null if there * is no suffix. * *

Corresponds to CGI's PATH_INFO * *

getPathInfo() is /foo for * the uri /myapp/servlet/Hello/foo. * * getPathInfo() is /hello.jsp for for the uri * /myapp/dir/hello.jsp/foo. */ public String getPathInfo() { return request.getPathInfo(); } /** * Returns the physical path name for the path info. * *

Corresponds to CGI's PATH_TRANSLATED * * @return null if there is no path info. */ public String getPathTranslated() { return request.getPathTranslated(); } /** * Returns the request's query string. Form based servlets will use * ServletRequest.getParameter() to decode the form values. * *

Corresponds to CGI's PATH_TRANSLATED */ public String getQueryString() { return request.getQueryString(); } /** * Returns the first value for a request header. * *

Corresponds to CGI's HTTP_* * *

   * String userAgent = request.getHeader("User-Agent");
   * 
* * @param name the header name * @return the header value */ public String getHeader(String name) { return request.getHeader(name); } /** * Returns all the values for a request header. In some rare cases, * like cookies, browsers may return multiple headers. * * @param name the header name * @return an enumeration of the header values. */ public Enumeration getHeaders(String name) { return request.getHeaders(name); } /** * Returns an enumeration of all headers sent by the client. */ public Enumeration getHeaderNames() { return request.getHeaderNames(); } /** * Converts a header value to an integer. * * @param name the header name * @return the header value converted to an integer */ public int getIntHeader(String name) { return request.getIntHeader(name); } /** * Converts a date header to milliseconds since the epoch. * *

   * long mod = request.getDateHeader("If-Modified-Since");
   * 
* * @param name the header name * @return the header value converted to an date */ public long getDateHeader(String name) { return request.getDateHeader(name); } /** * Returns an array of all cookies sent by the client. */ public Cookie []getCookies() { return request.getCookies(); } /** * Returns a session. If no session exists and create is true, then * create a new session, otherwise return null. * * @param create If true, then create a new session if none exists. */ public HttpSession getSession(boolean create) { return request.getSession(create); } /** * Returns the current session, creating one if necessary. * Sessions are a convenience for keeping user state * across requests. */ public HttpSession getSession() { return getSession(true); } /** * Returns the session id. Sessions are a convenience for keeping * user state across requests. * *

The session id is the value of the JSESSION cookie. */ public String getRequestedSessionId() { return request.getRequestedSessionId(); } /** * Returns true if the session is valid. */ public boolean isRequestedSessionIdValid() { return request.isRequestedSessionIdValid(); } /** * Returns true if the session came from a cookie. */ public boolean isRequestedSessionIdFromCookie() { return request.isRequestedSessionIdFromCookie(); } /** * Returns true if the session came URL-encoding. */ public boolean isRequestedSessionIdFromURL() { return request.isRequestedSessionIdFromURL(); } /** * Returns the auth type, e.g. basic. */ public String getAuthType() { return request.getAuthType(); } /** * Returns the remote user if authenticated. */ public String getRemoteUser() { return request.getRemoteUser(); } /** * Returns true if the user is in the given role. */ public boolean isUserInRole(String role) { return request.isUserInRole(role); } /** * Returns the equivalent principal object for the authenticated user. */ public Principal getUserPrincipal() { return request.getUserPrincipal(); } /** * @deprecated */ public boolean isRequestedSessionIdFromUrl() { return request.isRequestedSessionIdFromUrl(); } /** * @since Servlet 3.0 */ public boolean authenticate(HttpServletResponse response) throws IOException, ServletException { return request.authenticate(response); } /** * @since Servlet 3.0 */ public Part getPart(String name) throws IOException, ServletException { return request.getPart(name); } /** * @since Servlet 3.0 */ public Collection getParts() throws IOException, ServletException { return request.getParts(); } /** * @since Servlet 3.0 */ public void login(String username, String password) throws ServletException { request.login(username, password); } /** * @since Servlet 3.0 */ public void logout() throws ServletException { request.logout(); } }





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