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//
// WebScriptEnablingBehavior.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2008 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Dispatcher;
using System.ServiceModel.Web;
using System.Web.Script.Services;
namespace System.ServiceModel.Description
{
[ServiceContract (Namespace = "")]
internal class InteropScriptService
{
Type type;
string path;
bool debug;
public InteropScriptService (Type type, string path, bool debug)
{
this.type = type;
this.path = path;
this.debug = debug;
}
[WebGet (UriTemplate = "*")]
[OperationContract]
public string Get ()
{
return ProxyGenerator.GetClientProxyScript (type, path, debug);
}
}
public sealed class WebScriptEnablingBehavior : WebHttpBehavior
{
public WebScriptEnablingBehavior ()
{
DefaultBodyStyle = WebMessageBodyStyle.WrappedRequest;
DefaultOutgoingRequestFormat = WebMessageFormat.Json;
DefaultOutgoingResponseFormat = WebMessageFormat.Json;
}
public override WebMessageBodyStyle DefaultBodyStyle { get; set; }
public override WebMessageFormat DefaultOutgoingRequestFormat { get; set; }
public override WebMessageFormat DefaultOutgoingResponseFormat { get; set; }
[MonoTODO]
protected override void AddClientErrorInspector (ServiceEndpoint endpoint, ClientRuntime clientRuntime)
{
base.AddClientErrorInspector (endpoint, clientRuntime);
}
[MonoTODO]
protected override void AddServerErrorHandlers (ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
{
base.AddServerErrorHandlers (endpoint, endpointDispatcher);
}
[MonoTODO]
public override void ApplyClientBehavior (ServiceEndpoint endpoint, ClientRuntime clientRuntime)
{
base.ApplyClientBehavior (endpoint, clientRuntime);
}
public override void ApplyDispatchBehavior (ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
{
base.ApplyDispatchBehavior (endpoint, endpointDispatcher);
// doing similar to ServiceMetadataExtension
BuildScriptDispatcher (endpoint, endpointDispatcher, "js", false);
BuildScriptDispatcher (endpoint, endpointDispatcher, "jsdebug", true);
}
void BuildScriptDispatcher (ServiceEndpoint endpoint, EndpointDispatcher ed, string subPath, bool debug)
{
var instance = new InteropScriptService (endpoint.Contract.ContractType, endpoint.Address.Uri.ToString (), debug);
var cdOrg = ed.ChannelDispatcher;
var baseUriString = endpoint.ListenUri.ToString ();
var uri = new Uri (String.Concat (baseUriString, baseUriString [baseUriString.Length - 1] == '/' ? String.Empty : "/", subPath));
var listener = endpoint.Binding.BuildChannelListener<IReplyChannel> (uri);
var cd = new ChannelDispatcher (listener, String.Empty);
cd.MessageVersion = MessageVersion.None;
cd.Endpoints.Add (new EndpointDispatcher (new EndpointAddress (uri), "InteropScriptService", String.Empty)
{ ContractFilter = new MatchAllMessageFilter () });
var dr = cd.Endpoints [0].DispatchRuntime;
var dop = new DispatchOperation (dr, "Get", "*", "*");
dop.DeserializeRequest = false;
dop.SerializeReply = false;
dop.Invoker = new DummyInvoker (instance);
dr.UnhandledDispatchOperation = dop;
dr.InstanceContextProvider = new SingletonInstanceContextProvider (new InstanceContext (cdOrg.Host, instance));
var host = ed.ChannelDispatcher.Host;
host.ChannelDispatchers.Add (cd);
}
class DummyInvoker : IOperationInvoker
{
InteropScriptService instance;
public DummyInvoker (InteropScriptService instance)
{
this.instance = instance;
}
public object [] AllocateInputs ()
{
return new object [0];
}
public object Invoke (object instance, object [] inputs, out object [] outputs)
{
outputs = new object [0];
var msg = Message.CreateMessage (MessageVersion.None, "*", (object) null);
var hp = new HttpResponseMessageProperty ();
hp.Headers ["Content-Type"] = "text/javascript";
msg.Properties.Add (HttpResponseMessageProperty.Name, hp);
msg.Properties.Add (WebMessageEncoder.ScriptPropertyName, this.instance.Get ());
return msg;
}
public IAsyncResult InvokeBegin (object instance, object[] inputs, AsyncCallback callback, object state)
{
throw new NotSupportedException ();
}
public object InvokeEnd (object instance, out object [] outputs, IAsyncResult result)
{
throw new NotSupportedException ();
}
public bool IsSynchronous {
get { return true; }
}
}
protected override QueryStringConverter GetQueryStringConverter (OperationDescription operationDescription)
{
return new JsonQueryStringConverter () { CustomWrapperName = "d"};
}
[MonoTODO ("add non-XmlSerializer-ness check (but where?)")]
public override void Validate (ServiceEndpoint endpoint)
{
if (endpoint == null)
throw new ArgumentNullException ("endpoint");
ValidateBinding (endpoint);
foreach (var od in endpoint.Contract.Operations) {
var wai = od.GetWebAttributeInfo ();
if (wai.UriTemplate != null)
throw new InvalidOperationException ("UriTemplate must not be used with WebScriptEnablingBehavior");
var wia = od.Behaviors.Find<WebInvokeAttribute> ();
if (wia != null) {
switch (wia.Method.ToUpper ()) {
case "GET":
case "POST":
break;
default:
throw new InvalidOperationException ("Only GET and POST HTTP methods are valid used for WebScriptEnablingBehavior");
}
}
var style = wai != null && wai.IsBodyStyleSetExplicitly ? wai.BodyStyle : DefaultBodyStyle;
if (style != WebMessageBodyStyle.WrappedRequest)
throw new NotSupportedException (String.Format ("WebScriptEnableBehavior only allows WrappedRequest body style, but operation '{0}' uses {1}.", od.Name, style));
}
}
}
}
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