/*
* Copyright 1999-2005 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.environment.http;
import java.io.BufferedReader;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Vector;
import java.util.WeakHashMap;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import org.apache.avalon.framework.CascadingRuntimeException;
import org.apache.cocoon.environment.Cookie;
import org.apache.cocoon.environment.Request;
import org.apache.cocoon.environment.Session;
import org.apache.cocoon.environment.http.HttpSession;
import org.apache.cocoon.servlet.multipart.MultipartHttpServletRequest;
/**
* Implements the {@link org.apache.cocoon.environment.Request} interface
* to provide request information in the HTTP servlets environment.
*
* @author <a href="mailto:giacomo@apache.org">Giacomo Pati</a>
* @version $Id: HttpRequest.java 202262 2005-06-28 18:02:55Z vgritsenko $
*/
public final class HttpRequest implements Request {
/** The real HttpServletRequest object */
private final HttpServletRequest req;
/** The HttpEnvironment object */
private final HttpEnvironment env;
/** The character encoding of parameters */
private String form_encoding;
/** The default form encoding of the servlet container */
private String container_encoding;
/** The map to assure 1:1-mapping of server sessions and Cocoon session wrappers */
private static final Map sessions = new WeakHashMap();
/**
* Creates a HttpRequest based on a real HttpServletRequest object
*/
protected HttpRequest(HttpServletRequest req, HttpEnvironment env) {
super();
this.req = req;
this.env = env;
}
/* (non-Javadoc)
* @see org.apache.cocoon.environment.Request#get(java.lang.String)
*/
public Object get(String name) {
// if the request has been wrapped then access its method
if (req instanceof MultipartHttpServletRequest) {
return ((MultipartHttpServletRequest) req).get(name);
} else {
String[] values = req.getParameterValues(name);
if (values == null) {
return null;
}
if (values.length == 1) {
return values[0];
}
if (values.length > 1) {
Vector vect = new Vector(values.length);
for (int i = 0; i < values.length; i++) {
vect.add(values[i]);
}
return vect;
}
}
return null;
}
/* The HttpServletRequest interface methods */
public String getAuthType() {
return this.req.getAuthType();
}
private Cookie[] wrappedCookies = null;
private Map wrappedCookieMap = null;
public Cookie[] getCookies() {
if (this.wrappedCookieMap == null) {
wrapCookies();
}
return this.wrappedCookies;
}
public Map getCookieMap() {
if (this.wrappedCookieMap == null) {
wrapCookies();
}
return this.wrappedCookieMap;
}
private synchronized void wrapCookies() {
this.wrappedCookieMap = new HashMap();
javax.servlet.http.Cookie[] cookies = this.req.getCookies();
if (cookies != null) {
this.wrappedCookies = new Cookie[cookies.length];
for(int i=0; i<cookies.length;i++) {
HttpCookie cookie = new HttpCookie(cookies[i]);
this.wrappedCookies[i] = cookie;
this.wrappedCookieMap.put(cookie.getName(),cookie);
}
}
this.wrappedCookieMap = Collections.unmodifiableMap(this.wrappedCookieMap);
}
public long getDateHeader(String name) {
return this.req.getDateHeader(name);
}
public String getHeader(String name) {
return this.req.getHeader(name);
}
public Enumeration getHeaders(String name) {
return this.req.getHeaders(name);
}
public Enumeration getHeaderNames() {
return this.req.getHeaderNames();
}
public int getIntHeader(String name) {
return this.req.getIntHeader(name);
}
public String getMethod() {
return this.req.getMethod();
}
public String getPathInfo() {
return this.req.getPathInfo();
}
public String getPathTranslated() {
return this.req.getPathTranslated();
}
public String getContextPath() {
return this.req.getContextPath();
}
public String getQueryString() {
return this.req.getQueryString();
}
public String getRemoteUser() {
return this.req.getRemoteUser();
}
public boolean isUserInRole(String role) {
return this.req.isUserInRole(role);
}
public java.security.Principal getUserPrincipal() {
return this.req.getUserPrincipal();
}
public String getRequestedSessionId() {
return this.req.getRequestedSessionId();
}
protected String reqURI;
public String getRequestURI() {
if (this.reqURI == null) {
this.reqURI = this.req.getRequestURI();
if ( this.reqURI.equals("/") ) {
String s = this.req.getServletPath();
final StringBuffer buffer = new StringBuffer();
if ( null != s ) buffer.append(s);
s = this.req.getPathInfo();
if ( null != s ) buffer.append(s);
this.reqURI = buffer.toString();
}
}
return this.reqURI;
}
public String getSitemapURI() {
return this.env.getURI();
}
public String getSitemapURIPrefix() {
return this.env.getURIPrefix();
}
public String getServletPath() {
return this.req.getServletPath();
}
/**
* Creates a wrapper implementing {@link Session} for
* {@link javax.servlet.http.HttpSession}.
* The method must assure 1:1-mapping of
* {@link javax.servlet.http.HttpSession}s to Cocoon's session wrappers.
*
* @see org.apache.cocoon.environment.Request#getSession(boolean)
*/
public Session getSession(boolean create) {
javax.servlet.http.HttpSession serverSession = this.req.getSession(create);
HttpSession session;
if (serverSession != null) {
synchronized (sessions) {
// retrieve existing wrapper
WeakReference ref = (WeakReference)sessions.get(serverSession);
if (ref == null || (session = (HttpSession)ref.get()) == null) {
// create new wrapper
session = new HttpSession(serverSession);
sessions.put(serverSession, new WeakReference(session));
}
}
} else {
// invalidate
session = null;
}
return session;
}
public Session getSession() {
return this.getSession(true);
}
public boolean isRequestedSessionIdValid() {
return this.req.isRequestedSessionIdValid();
}
public boolean isRequestedSessionIdFromCookie() {
return this.req.isRequestedSessionIdFromCookie();
}
public boolean isRequestedSessionIdFromURL() {
return this.req.isRequestedSessionIdFromURL();
}
/**
* @deprecated As of Version 2.1 of the Java Servlet API, use
* {@link #isRequestedSessionIdFromURL()} instead.
*/
public boolean isRequestedSessionIdFromUrl() {
return this.req.isRequestedSessionIdFromURL();
}
/* The ServletRequest interface methods */
public Object getAttribute(String name) {
return this.req.getAttribute(name);
}
public Enumeration getAttributeNames() {
return this.req.getAttributeNames();
}
public String getCharacterEncoding() {
if (this.form_encoding == null) {
return this.req.getCharacterEncoding();
} else {
return this.form_encoding;
}
}
public void setCharacterEncoding(String form_encoding)
throws java.io.UnsupportedEncodingException {
this.form_encoding = form_encoding;
}
/**
* Sets the default encoding of the servlet container.
*/
public void setContainerEncoding(String container_encoding) {
this.container_encoding = container_encoding;
}
public int getContentLength() {
return this.req.getContentLength();
}
public String getContentType() {
return this.req.getContentType();
}
public ServletInputStream getInputStream() throws IOException {
return this.req.getInputStream();
}
public String getParameter(String name) {
String value = this.req.getParameter(name);
if (this.form_encoding == null || value == null) {
return value;
}
return decode(value);
}
private String decode(String str) {
if (str == null) return null;
try {
if (this.container_encoding == null)
this.container_encoding = "ISO-8859-1";
byte[] bytes = str.getBytes(this.container_encoding);
return new String(bytes, form_encoding);
} catch (java.io.UnsupportedEncodingException uee) {
throw new CascadingRuntimeException("Unsupported Encoding Exception", uee);
}
}
public Enumeration getParameterNames() {
return this.req.getParameterNames();
}
public String[] getParameterValues(String name) {
String[] values = this.req.getParameterValues(name);
if (values == null) return null;
if (this.form_encoding == null) {
return values;
}
String[] decoded_values = new String[values.length];
for (int i = 0; i < values.length; ++i) {
decoded_values[i] = decode(values[i]);
}
return decoded_values;
}
public String getProtocol() {
return this.req.getProtocol();
}
public String getScheme() {
return this.req.getScheme();
}
public String getServerName() {
return this.req.getServerName();
}
public int getServerPort() {
return this.req.getServerPort();
}
public BufferedReader getReader() throws IOException {
return this.req.getReader();
}
public String getRemoteAddr() {
return this.req.getRemoteAddr();
}
public String getRemoteHost() {
return this.req.getRemoteHost();
}
public void setAttribute(String name, Object o) {
this.req.setAttribute(name, o);
}
public void removeAttribute(String name) {
this.req.removeAttribute(name);
}
public Locale getLocale() {
return this.req.getLocale();
}
public Enumeration getLocales() {
return this.req.getLocales();
}
public boolean isSecure() {
return this.req.isSecure();
}
public RequestDispatcher getRequestDispatcher(String path) {
return this.req.getRequestDispatcher(path);
}
/**
* @deprecated As of Version 2.1 of the Java Servlet API, use
* {@link javax.servlet.ServletContext#getRealPath(java.lang.String)}instead.
*/
public String getRealPath(String path) {
return this.req.getRealPath(path);
}
}