Examples of org.mortbay.jetty.Request

org.mortbay.jetty.Request
Jetty Request.
Implements {@link javax.servlet.HttpServletRequest} from the {@link javax.servlet} package.

The standard interface of mostly getters, is extended with setters so that the request is mutable by the handlers that it is passed to. This allows the request object to be as lightweight as possible and not actually implement any significant behaviour. For example
- The {@link getContextPath} method will return null, until the requeset has been passed to a {@link ContextHandler} which matches the {@link getPathInfo} with a contextpath and calls {@link setContextPath} as a result.
- the HTTP session methods will all return null sessions until such time as a request has been passed to a {@link org.mortbay.jetty.servlet.SessionHandler} which checks for session cookiesand enables the ability to create new sessions.
- The {@link getServletPath} method will return null until the request has beenpassed to a {@link org.mortbay.jetty.servlet.ServletHandler} and the pathInfo matchedagainst the servlet URL patterns and {@link setServletPath} called as a result.
A request instance is created for each {@link HttpConnection} accepted by the server and recycled for each HTTP request received via that connection. An effort is made to avoid reparsing headers and cookies that are likely to be the same for requests from the same connection. @author gregw

        String old_servlet_path=null;
        String old_path_info=null;
        ClassLoader old_classloader=null;
        Thread current_thread=null;
        
        Request base_request=(request instanceof Request)?(Request)request:HttpConnection.getCurrentConnection().getRequest();
        if( !isStarted() || _shutdown || (dispatch==REQUEST && base_request.isHandled()))
            return;
        
        old_context=base_request.getContext();
        
        // Are we already in this context?
        if (old_context!=_scontext)
        {
            new_context=true;
            
            // Check the vhosts
            if (_vhosts!=null && _vhosts.length>0)
            {
                String vhost = normalizeHostname( request.getServerName());


                boolean match=false;
                
                // TODO non-linear lookup
                for (int i=0;!match && i<_vhosts.length;i++)
                    match=_vhosts[i]!=null && _vhosts[i].equalsIgnoreCase(vhost);
                if (!match)
                    return;
            }
            
            // Check the connector
            if (_connectors!=null && _connectors.size()>0)
            {
                String connector=HttpConnection.getCurrentConnection().getConnector().getName();
                if (connector==null || !_connectors.contains(connector))
                    return;
            }
            
            // Nope - so check the target.
            if (dispatch==REQUEST)
            {
                if (_compactPath)
                    target=URIUtil.compactPath(target);
                
                if (target.equals(_contextPath))
                {
                    if (!_allowNullPathInfo && !target.endsWith(URIUtil.SLASH))
                    {
                        base_request.setHandled(true);
                        if (request.getQueryString()!=null)
                            response.sendRedirect(URIUtil.addPaths(request.getRequestURI(),URIUtil.SLASH)+"?"+request.getQueryString());
                        else 
                            response.sendRedirect(URIUtil.addPaths(request.getRequestURI(),URIUtil.SLASH));
                        return;
                    }
                    if (_contextPath.length()>1)
                    {
                        target=URIUtil.SLASH;
                        request.setAttribute("org.mortbay.jetty.nullPathInfo",target);
                    }
                }
                else if (target.startsWith(_contextPath) && (_contextPath.length()==1 || target.charAt(_contextPath.length())=='/'))
                {
                    if (_contextPath.length()>1)
                        target=target.substring(_contextPath.length());
                }
                else 
                {
                    // Not for this context!
                    return;
                }
            }
        }
        
        try
        {
            old_context_path=base_request.getContextPath();
            old_servlet_path=base_request.getServletPath();
            old_path_info=base_request.getPathInfo();
            
            // Update the paths
            base_request.setContext(_scontext);
            if (dispatch!=INCLUDE && target.startsWith("/"))
            {
                if (_contextPath.length()==1)
                    base_request.setContextPath("");
                else
                    base_request.setContextPath(_contextPath);
                base_request.setServletPath(null);
                base_request.setPathInfo(target);
            }


            ServletRequestEvent event=null;
            if (new_context)
            {
                // Set the classloader
                if (_classLoader!=null)
                {
                    current_thread=Thread.currentThread();
                    old_classloader=current_thread.getContextClassLoader();
                    current_thread.setContextClassLoader(_classLoader);
                }
                
                // Handle the REALLY SILLY request events!
                if (_requestListeners!=null)
                {
                    event = new ServletRequestEvent(_scontext,request);
                    for(int i=0;i<LazyList.size(_requestListeners);i++)
                        ((ServletRequestListener)LazyList.get(_requestListeners,i)).requestInitialized(event);
                }
                for(int i=0;i<LazyList.size(_requestAttributeListeners);i++)
                    base_request.addEventListener(((EventListener)LazyList.get(_requestAttributeListeners,i)));
            }
            
            // Handle the request
            try
            {
                if (dispatch==REQUEST && isProtectedTarget(target))
                    throw new HttpException(HttpServletResponse.SC_NOT_FOUND);
                
                Handler handler = getHandler();
                if (handler!=null)
                    handler.handle(target, request, response, dispatch);
            }
            catch(HttpException e)
            {
                Log.debug(e);
                response.sendError(e.getStatus(), e.getReason());
            }
            finally
            {
                // Handle more REALLY SILLY request events!
                if (new_context)
                {
                    for(int i=LazyList.size(_requestListeners);i-->0;)
                        ((ServletRequestListener)LazyList.get(_requestListeners,i)).requestDestroyed(event);
                    
                    for(int i=0;i<LazyList.size(_requestAttributeListeners);i++)
                        base_request.removeEventListener(((EventListener)LazyList.get(_requestAttributeListeners,i)));
                }
            }
        }
        finally
        {
            if (old_context!=_scontext)
            {
                // reset the classloader
                if (_classLoader!=null)
                {
                    current_thread.setContextClassLoader(old_classloader);
                }
                
                // reset the context and servlet path.
                base_request.setContext(old_context);
                base_request.setContextPath(old_context_path);
                base_request.setServletPath(old_servlet_path);
                base_request.setPathInfo(old_path_info); 
            }
        }
    }

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    {
        if (!isStarted())
            return;


        // Get the base requests
        final Request base_request=(request instanceof Request)?((Request)request):HttpConnection.getCurrentConnection().getRequest();
        final String old_servlet_name=base_request.getServletName();
        final String old_servlet_path=base_request.getServletPath();
        final String old_path_info=base_request.getPathInfo();
        final Map old_role_map=base_request.getRoleMap();
        
        try
        {
            ServletHolder servlet_holder=null;
            FilterChain chain=null;
            
            // find the servlet
            if (target.startsWith("/"))
            {
                // Look for the servlet by path
                PathMap.Entry entry=getHolderEntry(target);
                if (entry!=null)
                {
                    servlet_holder=(ServletHolder)entry.getValue();
                    base_request.setServletName(servlet_holder.getName());
                    base_request.setRoleMap(servlet_holder.getRoleMap());
                    if(Log.isDebugEnabled())Log.debug("servlet="+servlet_holder);
                    
                    String servlet_path_spec=(String)entry.getKey(); 
                    String servlet_path=entry.getMapped()!=null?entry.getMapped():PathMap.pathMatch(servlet_path_spec,target);
                    String path_info=PathMap.pathInfo(servlet_path_spec,target);
                    
                    if (type==INCLUDE)
                    {
                        base_request.setAttribute(Dispatcher.__INCLUDE_SERVLET_PATH,servlet_path);
                        base_request.setAttribute(Dispatcher.__INCLUDE_PATH_INFO, path_info);
                    }
                    else
                    {
                        base_request.setServletPath(servlet_path);
                        base_request.setPathInfo(path_info);
                    }
                    
                    if (servlet_holder!=null && _filterMappings!=null && _filterMappings.length>0)
                        chain=getFilterChain(type, target, servlet_holder);
                }      
            }
            else
            {
                // look for a servlet by name!
                servlet_holder=(ServletHolder)_servletNameMap.get(target);
                if (servlet_holder!=null && _filterMappings!=null && _filterMappings.length>0)
                {
                    base_request.setServletName(servlet_holder.getName());
                    chain=getFilterChain(type, null,servlet_holder);
                }
            }


            if (Log.isDebugEnabled()) 
            {
                Log.debug("chain="+chain);
                Log.debug("servlet holder="+servlet_holder);
            }


            // Do the filter/handling thang
            if (servlet_holder!=null)
            {
                base_request.setHandled(true);
                if (chain!=null)
                    chain.doFilter(request, response);
                else 
                    servlet_holder.handle(request,response);
            }
            else
                notFound(request, response);
        }
        catch(RetryRequest e)
        {
            base_request.setHandled(false);
            throw e;
        }
        catch(EofException e)
        {
            throw e;
        }
        catch(Exception e)
        {
            if (type!=REQUEST)
            {
                if (e instanceof IOException)
                    throw (IOException)e;
                if (e instanceof RuntimeException)
                    throw (RuntimeException)e;
                if (e instanceof ServletException)
                    throw (ServletException)e;
            }
            
            Throwable th=e;
            if (th instanceof ServletException)
            {
                Log.debug(th);
                Throwable cause=((ServletException)th).getRootCause();
                if (cause!=th && cause!=null)
                    th=cause;
            }
            
            if (th instanceof HttpException)
                throw (HttpException)th;
            else if (th instanceof UnavailableException)
            {
                Log.warn(request.getRequestURI()+": "+th);
                Log.debug(th); 
            }
            else if (Log.isDebugEnabled() || !( th instanceof java.io.IOException))
            { 
                Log.warn(request.getRequestURI(), th); 
                if(Log.isDebugEnabled())
                    Log.debug(request.toString()); 
            }
            else
            {
                Log.warn(request.getRequestURI()+": "+th);
            }
            
            // TODO httpResponse.getHttpConnection().forceClose();
            if (!response.isCommitted())
            {
                request.setAttribute(ServletHandler.__J_S_ERROR_EXCEPTION_TYPE,th.getClass());
                request.setAttribute(ServletHandler.__J_S_ERROR_EXCEPTION,th);
                if (th instanceof UnavailableException)
                {
                    UnavailableException ue = (UnavailableException)th;
                    if (ue.isPermanent())
                        response.sendError(HttpServletResponse.SC_NOT_FOUND,th.getMessage());
                    else
                        response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE,th.getMessage());
                }
                else
                    response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,th.getMessage());
            }
            else
                if(Log.isDebugEnabled())Log.debug("Response already committed for handling "+th);
        }
        catch(Error e)
        {   
            if (type!=REQUEST)
                throw e;
            Log.warn("Error for "+request.getRequestURI(),e);
            if(Log.isDebugEnabled())Log.debug(request.toString());
            
            // TODO httpResponse.getHttpConnection().forceClose();
            if (!response.isCommitted())
            {
                request.setAttribute(ServletHandler.__J_S_ERROR_EXCEPTION_TYPE,e.getClass());
                request.setAttribute(ServletHandler.__J_S_ERROR_EXCEPTION,e);
                response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,e.getMessage());
            }
            else
                if(Log.isDebugEnabled())Log.debug("Response already committed for handling ",e);
        }
        finally
        {
            base_request.setServletName(old_servlet_name);
            base_request.setRoleMap(old_role_map);
            if (type!=INCLUDE)
            {
                base_request.setServletPath(old_servlet_path);
                base_request.setPathInfo(old_path_info); 
            }
        }
        return;
    }

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        }
        
        // Service the request
        boolean servlet_error=true;
        Principal user=null;
        Request base_request=null;
        try
        {
            // Handle aliased path
            if (_forcedPath!=null)
                // TODO complain about poor naming to the Jasper folks
                request.setAttribute("org.apache.catalina.jsp_file",_forcedPath);


            // Handle run as
            if (_runAs!=null && _realm!=null)
            {
                base_request=HttpConnection.getCurrentConnection().getRequest();
                user=_realm.pushRole(base_request.getUserPrincipal(),_runAs);
                base_request.setUserPrincipal(user);
            }
            
            servlet.service(request,response);
            servlet_error=false;
        }
        catch(UnavailableException e)
        {
            makeUnavailable(e);
        }
        finally
        {
            // pop run-as role
            if (_runAs!=null && _realm!=null && user!=null && base_request!=null)
            {
                user=_realm.popRole(user);
                base_request.setUserPrincipal(user);
            }


            // Handle error params.
            if (servlet_error)
                request.setAttribute("javax.servlet.error.servlet_name",getName());

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    public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch)
            throws IOException, ServletException
    {
        setRequestedId(request, dispatch);
        
        Request base_request = (request instanceof Request) ? (Request)request:HttpConnection.getCurrentConnection().getRequest();
        SessionManager old_session_manager=null;
        HttpSession old_session=null;
        
        try
        {
            old_session_manager = base_request.getSessionManager();
            old_session = base_request.getSession(false);
            
            if (old_session_manager != _sessionManager)
            {
                // new session context
                base_request.setSessionManager(_sessionManager);
                base_request.setSession(null);
            }
            
            // access any existing session
            HttpSession session=null;
            if (_sessionManager!=null)
            {
                session=request.getSession(false);
                if (session!=null)
                {
                    if(session!=old_session)
                    {
                        Cookie cookie = _sessionManager.access(session,request.isSecure());
                        if (cookie!=null ) // Handle changed ID or max-age refresh
                            response.addCookie(cookie);
                    }
                }
                else 
                {
                    session=base_request.recoverNewSession(_sessionManager);
                    if (session!=null)
                        base_request.setSession(session);
                }
            }
            
            if(Log.isDebugEnabled())
            {
                Log.debug("sessionManager="+_sessionManager);
                Log.debug("session="+session);
            }
        
            getHandler().handle(target, request, response, dispatch);
        }
        catch (RetryRequest r)
        {
            HttpSession session=base_request.getSession(false);
            if (session!=null && session.isNew())
                base_request.saveNewSession(_sessionManager,session);
            throw r;
        }
        finally
        {
            HttpSession session=request.getSession(false);


            if (old_session_manager != _sessionManager)
            {
                //leaving context, free up the session
                if (session!=null)
                    _sessionManager.complete(session);
                base_request.setSessionManager(old_session_manager);
                base_request.setSession(old_session);
            }
        }
    }

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     * @param request
     * @param dispatch
     */
    protected void setRequestedId(HttpServletRequest request, int dispatch) 
    {
        Request base_request = (request instanceof Request) ? (Request)request:HttpConnection.getCurrentConnection().getRequest();
        String requested_session_id=request.getRequestedSessionId();
        if (dispatch!=REQUEST || requested_session_id!=null)
        {
            return;
        }
        
        SessionManager sessionManager = getSessionManager();
        boolean requested_session_id_from_cookie=false;
        
        // Look for session id cookie    
        if (_sessionManager.isUsingCookies())
        {
            Cookie[] cookies=request.getCookies();
            if (cookies!=null && cookies.length>0)
            {
                for (int i=0;i<cookies.length;i++)
                {
                    if (sessionManager.getSessionCookie().equalsIgnoreCase(cookies[i].getName()))
                    {
                        if (requested_session_id!=null)
                        {
                            // Multiple jsessionid cookies. Probably due to
                            // multiple paths and/or domains. Pick the first
                            // known session or the last defined cookie.
                            if (sessionManager.getHttpSession(requested_session_id)!=null)
                                break;
                        }


                        requested_session_id=cookies[i].getValue();
                        requested_session_id_from_cookie = true;
                        if(Log.isDebugEnabled())Log.debug("Got Session ID "+requested_session_id+" from cookie");
                    }
                }
            }
        }
        
        if (requested_session_id==null)
        {
            String uri = request.getRequestURI();
            
            int semi = uri.lastIndexOf(';');
            if (semi>=0)
            {   
                String path_params=uri.substring(semi+1);
                
                // check if there is a url encoded session param.
                String param=sessionManager.getSessionURL();
                if (param!=null && path_params!=null && path_params.startsWith(param))
                {
                    requested_session_id = path_params.substring(sessionManager.getSessionURL().length()+1);
                    if(Log.isDebugEnabled())Log.debug("Got Session ID "+requested_session_id+" from URL");
                }
            }
        }
        
        base_request.setRequestedSessionId(requested_session_id);
        base_request.setRequestedSessionIdFromCookie(requested_session_id!=null && requested_session_id_from_cookie);
    }

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            currentThread.setContextClassLoader(oldClassLoader);
        }
    }


    private void handle(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
        Request jettyRequest = (Request) req;
        Response jettyResponse = (Response) res;
        res.setContentType("text/xml");
        RequestAdapter request = new RequestAdapter(jettyRequest);
        ResponseAdapter response = new ResponseAdapter(jettyResponse);


        request.setAttribute(WebServiceContainer.SERVLET_REQUEST, req);
        request.setAttribute(WebServiceContainer.SERVLET_RESPONSE, res);
        // TODO: add support for context
        request.setAttribute(WebServiceContainer.SERVLET_CONTEXT, null);


        WebUserDataPermission udp = new WebUserDataPermission(req);
        if (realm != null) {
            try {
                defaultAcc.checkPermission(udp);
            } catch (AccessControlException e) {
                throw new HttpException(HttpServletResponse.SC_FORBIDDEN);
            }
            if (authenticator != null) {
                String pathInContext = org.mortbay.util.URIUtil.canonicalPath(req.getContextPath());
                if (authenticator.authenticate(realm, pathInContext, jettyRequest, jettyResponse) == null) {
                    throw new HttpException(HttpServletResponse.SC_FORBIDDEN, null);
                }
            } else {
                //EJB will figure out correct defaultSubject shortly
                //TODO consider replacing the GenericEJBContainer.DefaultSubjectInterceptor with this line
                //setting the defaultSubject.
                ContextManager.popCallers(null);
            }
        }
        if (isWSDLRequest(req)) {
            try {
                webServiceContainer.getWsdl(request, response);
                jettyRequest.setHandled(true);
            } catch (IOException e) {
                throw e;
            } catch (Exception e) {
                throw (HttpException) new HttpException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Could not fetch wsdl!").initCause(e);
            }
        } else {
            try {
                webServiceContainer.invoke(request, response);
                jettyRequest.setHandled(true);
            } catch (IOException e) {
                throw e;
            } catch (Exception e) {
                throw (HttpException) new HttpException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Could not process message!").initCause(e);
            }

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            public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch) throws IOException, ServletException
            {
                int i=0;
                try
                {
                    Request base_request=(request instanceof Request)?(Request)request:HttpConnection.getCurrentConnection().getRequest();
                    base_request.setHandled(true);
                    response.setStatus(200);
                    _count.incrementAndGet();
                    
                    if (request.getServerName().equals("jetty.mortbay.org"))
                    {

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    public static class HelloHandler extends AbstractHandler
    {
        public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch) throws IOException, ServletException
        {
            Request base_request = (request instanceof Request) ? (Request)request:HttpConnection.getCurrentConnection().getRequest();
            base_request.setHandled(true);
            
            response.setStatus(HttpServletResponse.SC_OK);
            response.setContentType("text/html");
            response.getWriter().println("<h1>Hello OneContext</h1>");
        }

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        static int h=0;
        int hello=h++;
        
        public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch) throws IOException, ServletException
        {
            Request base_request = (request instanceof Request) ? (Request)request:HttpConnection.getCurrentConnection().getRequest();
            base_request.setHandled(true);
            response.setStatus(HttpServletResponse.SC_OK);
            response.setContentType("text/html");
            response.getWriter().println("<h1>Hello OneContext "+hello+"</h1>");
        }

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    public static class HelloHandler extends AbstractHandler
    {
        public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch) throws IOException, ServletException
        {
            Request base_request = (request instanceof Request) ? (Request)request:HttpConnection.getCurrentConnection().getRequest();
            base_request.setHandled(true);
            response.setContentType("text/html");
            response.setStatus(HttpServletResponse.SC_OK);
            response.getWriter().println("<h1>Hello ManyHandler</h1>");
        }

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