/*
* Copyright (c) 1998-2011 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 com.caucho.server.webapp;
import com.caucho.i18n.CharacterEncoding;
import com.caucho.server.dispatch.Invocation;
import com.caucho.server.http.CauchoRequest;
import com.caucho.server.http.CauchoResponse;
import com.caucho.server.http.Form;
import com.caucho.server.http.RequestAdapter;
import com.caucho.server.http.ServletInputStreamImpl;
import com.caucho.server.session.SessionImpl;
import com.caucho.server.session.SessionManager;
import com.caucho.util.Alarm;
import com.caucho.util.CharBuffer;
import com.caucho.util.FreeList;
import com.caucho.util.HashMapImpl;
import com.caucho.vfs.BufferedReaderAdapter;
import com.caucho.vfs.Encoding;
import com.caucho.vfs.ReadStream;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.BufferedReader;
import java.io.IOException;
import java.util.*;
import java.util.logging.*;
/**
* sub-request for a include() page
*/
class AbstractDispatchRequest extends RequestAdapter {
protected static final Logger log
= Logger.getLogger(AbstractDispatchRequest.class.getName());
private static final FreeList<AbstractDispatchRequest> _freeList
= new FreeList<AbstractDispatchRequest>(32);
private WebApp _webApp;
private WebApp _oldWebApp;
private Invocation _invocation;
private Form _formParser;
private HashMapImpl<String,String[]> _form;
protected ReadStream _readStream;
protected ServletInputStreamImpl _is;
// Reader for post contents
private BufferedReaderAdapter _bufferedReader;
private String _method;
private String _uri;
private String _servletPath;
private String _pathInfo;
private String _queryString;
private String _addedQuery;
private SessionImpl _session;
private String _pageUri;
private String _pageContextPath;
private String _pageServletPath;
private String _pagePathInfo;
private String _pageQueryString;
protected AbstractDispatchRequest()
{
}
/**
* Creates a dispatch request.
*/
public static AbstractDispatchRequest createDispatch()
{
AbstractDispatchRequest req = _freeList.allocate();
if (req == null)
req = new AbstractDispatchRequest();
return req;
}
void init(Invocation invocation,
WebApp webApp,
WebApp oldWebApp,
HttpServletRequest request,
HttpServletResponse response,
String method, String uri,
String servletPath, String pathInfo,
String queryString, String addedQuery)
throws ServletException
{
super.init(request, response, webApp);
_invocation = invocation;
_webApp = webApp;
_oldWebApp = oldWebApp;
_form = null;
_readStream = null;
_is = null;
_bufferedReader = null;
_method = method;
_uri = uri;
_servletPath = servletPath;
_pathInfo = pathInfo;
_queryString = queryString;
_addedQuery = addedQuery;
_pageUri = null;
_pageContextPath = null;
_pageServletPath = null;
_pagePathInfo = null;
_pageQueryString = null;
_session = null;
}
void setStream(ReadStream readStream)
{
_readStream = readStream;
}
public WebApp getWebApp()
{
return _webApp;
}
public String getMethod()
{
return _method;
}
public String getRequestURI()
{
return _uri;
}
/**
* Returns the URL for the request
*/
public StringBuffer getRequestURL()
{
StringBuffer sb = new StringBuffer();
sb.append(getScheme());
sb.append("://");
sb.append(getServerName());
if (getServerPort() > 0 &&
getServerPort() != 80 &&
getServerPort() != 443) {
sb.append(":");
sb.append(getServerPort());
}
sb.append(getRequestURI());
return sb;
}
void setPageURI(String uri)
{
_pageUri = uri;
}
public String getPageURI()
{
return _pageUri;
}
/**
* Returns the servlet context prefix of the webApp.
*/
public String getContextPath()
{
if (_webApp != null)
return _webApp.getContextPath();
else
return "/";
}
/**
* Sets the servlet context prefix of page.
*/
void setPageContextPath(String contextPath)
{
_pageContextPath = contextPath;
}
/**
* Gets the servlet context prefix of page.
*/
public String getPageContextPath()
{
return _pageContextPath;
}
public String getServletPath()
{
return _servletPath;
}
public String getPageServletPath()
{
return _pageServletPath;
}
void setPageServletPath(String servletPath)
{
_pageServletPath = servletPath;
}
public String getPathInfo()
{
return _pathInfo;
}
public String getPagePathInfo()
{
return _pagePathInfo;
}
void setPagePathInfo(String pathInfo)
{
_pagePathInfo = pathInfo;
}
public String getQueryString()
{
return _queryString;
}
void setPageQueryString(String queryString)
{
_pageQueryString = queryString;
}
public String getPageQueryString()
{
return _pageQueryString;
}
public Map getParameterMap()
{
if (_form == null)
_form = parseQuery();
return _form;
}
public Enumeration getParameterNames()
{
if (_form == null)
_form = parseQuery();
return Collections.enumeration(_form.keySet());
}
public String []getParameterValues(String name)
{
if (_form == null)
_form = parseQuery();
return _form.get(name);
}
public String getParameter(String name)
{
String []values = getParameterValues(name);
if (values == null || values.length == 0)
return null;
return values[0];
}
private HashMapImpl<String,String[]> parseQuery()
{
HashMapImpl<String,String[]> table = new HashMapImpl<String,String[]>();
String defaultEncoding = CharacterEncoding.getLocalEncoding();
String charEncoding = getCharacterEncoding();
if (charEncoding == null)
charEncoding = defaultEncoding;
String javaEncoding = Encoding.getJavaName(charEncoding);
if (_addedQuery != null) {
try {
if (_formParser == null)
_formParser = new Form();
_formParser.parseQueryString(table, _addedQuery, javaEncoding, false);
} catch (Exception e) {
log.log(Level.FINER, e.toString(), e);
}
}
Enumeration en = super.getParameterNames();
while (en.hasMoreElements()) {
String key = (String) en.nextElement();
String []oldValues = (String []) super.getParameterValues(key);
String []newValues = (String []) table.get(key);
if (oldValues == null) {
}
else if (newValues == null)
table.put(key, oldValues);
else {
String []next = new String[oldValues.length + newValues.length];
System.arraycopy(newValues, 0, next, 0, newValues.length);
System.arraycopy(oldValues, 0, next, newValues.length,
oldValues.length);
table.put(key, next);
}
}
return table;
}
public String getRealPath(String path)
{
return _webApp.getRealPath(path);
}
public String getPathTranslated()
{
if (_pathInfo != null)
return getRealPath(_pathInfo);
else
return null;
}
public RequestDispatcher getRequestDispatcher(String path)
{
if (path.startsWith("/"))
return _webApp.getRequestDispatcher(path);
else
return _webApp.getRequestDispatcher(getPwd() + path);
}
public String getPwd()
{
CharBuffer cb = CharBuffer.allocate();
String servletPath = getPageServletPath();
if (servletPath != null)
cb.append(servletPath);
String pathInfo = getPagePathInfo();
if (pathInfo != null)
cb.append(pathInfo);
int p = cb.lastIndexOf('/');
if (p >= 0)
cb.setLength(p);
cb.append('/');
return cb.close();
}
public ReadStream getStream()
throws IOException
{
if (_readStream == null && getRequest() instanceof CauchoRequest)
return ((CauchoRequest) getRequest()).getStream();
else
return _readStream;
}
@Override
public ServletInputStream getInputStream()
throws IOException
{
if (_readStream == null)
return super.getInputStream();
if (_is == null)
_is = new ServletInputStreamImpl();
_is.init(_readStream);
return _is;
}
@Override
public BufferedReader getReader()
throws IOException
{
if (_readStream == null)
return super.getReader();
if (_bufferedReader == null)
_bufferedReader = new BufferedReaderAdapter(getStream());
// bufferedReader is just an adapter to get the signature right.
_bufferedReader.init(getStream());
return _bufferedReader;
}
/**
* Returns the current session.
*
* @param create true if a new session should be created
*
* @return the current session
*/
@Override
public HttpSession getSession(boolean create)
{
SessionManager manager = null;
if (_webApp != null)
manager = _webApp.getSessionManager();
if (manager != null)
setVaryCookie(manager.getCookieName());
if (_session != null && _session.isValid()) {
setHasCookie();
return _session;
}
if (_webApp == _oldWebApp) {
HttpSession hSession = super.getSession(create);
if (hSession != null)
setHasCookie();
return hSession;
}
else {
SessionImpl oldSession = _session;
_session = createSession(create, oldSession != null);
}
if (_session != null)
setHasCookie();
return _session;
}
/**
* Returns the current session.
*
* XXX: duplicated in AbstractHttpRequest
*
* @param create true if a new session should be created
*
* @return the current session
*/
private SessionImpl createSession(boolean create, boolean hasOldSession)
{
SessionManager manager = getSessionManager();
String id = getRequestedSessionId();
long now = Alarm.getCurrentTime();
SessionImpl session;
if (id != null && id.length() > 6) {
session = manager.getSession(id, now, create,
isRequestedSessionIdFromCookie());
if (session == null) {
}
else if (session.isValid()) {
if (session != null)
setHasCookie();
if (! session.getId().equals(id) && manager.enableSessionCookies()) {
HttpServletResponse response = getResponse();
if (response instanceof CauchoResponse)
((CauchoResponse) getResponse()).setSessionId(session.getId());
}
return session;
}
}
else
id = null;
if (! create)
return null;
// Must accept old ids because different webApps in the same
// server must share the same cookie
//
// But, if the session group doesn't match, then create a new
// session.
session = manager.createSession(id, now, this,
isRequestedSessionIdFromCookie());
if (session != null)
setHasCookie();
if (session.getId().equals(id))
return session;
if (manager.enableSessionCookies()) {
HttpServletResponse response = getResponse();
if (response instanceof CauchoResponse)
((CauchoResponse) getResponse()).setSessionId(session.getId());
}
return session;
}
public boolean isLoginRequested()
{
if (! (getRequest() instanceof CauchoRequest))
return false;
else
return ((CauchoRequest) getRequest()).isLoginRequested();
}
public boolean login(boolean isFail)
{
if (! (getRequest() instanceof CauchoRequest))
return false;
else
return ((CauchoRequest) getRequest()).login(isFail);
}
/**
* Returns true if the user represented by the current request
* plays the named role.
*
* @param role the named role to test.
* @return true if the user plays the role.
*/
public boolean isUserInRole(String role)
{
HashMap<String,String> roleMap = _invocation.getSecurityRoleMap();
if (roleMap != null) {
String linkRole = roleMap.get(role);
if (linkRole != null)
role = linkRole;
}
return super.isUserInRole(role);
}
/**
* Cleans up at the end of the request
*/
public void finishRequest()
throws IOException
{
SessionImpl session = _session;
_session = null;
if (session != null)
session.finishRequest();
}
/**
* Frees the request.
*/
public static void free(AbstractDispatchRequest req)
{
req.free();
_freeList.free(req);
}
/**
* Clears variables.
*/
protected void free()
{
super.free();
_session = null;
_webApp = null;
_oldWebApp = null;
_readStream = null;
_invocation = null;
if (_is != null)
_is.free();
}
public String toString()
{
return getClass().getSimpleName() + "[" + getRequest() + "]";
}
}