/
ClientRuntimeChannel.cs
667 lines (557 loc) · 20.2 KB
/
ClientRuntimeChannel.cs
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//
// ClientRuntimeChannel.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2006 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.Collections.Generic;
using System.Reflection;
using System.Runtime.Serialization;
using System.ServiceModel.Channels;
using System.ServiceModel.Description;
using System.ServiceModel.Dispatcher;
using System.ServiceModel.Security;
using System.Threading;
using System.Xml;
namespace System.ServiceModel.MonoInternal
{
#if DISABLE_REAL_PROXY
// FIXME: This is a quick workaround for bug #571907
public
#endif
interface IInternalContextChannel
{
ContractDescription Contract { get; }
OperationContext Context { set; }
object Process (MethodBase method, string operationName, object [] parameters);
IAsyncResult BeginProcess (MethodBase method, string operationName, object [] parameters, AsyncCallback callback, object asyncState);
object EndProcess (MethodBase method, string operationName, object [] parameters, IAsyncResult result);
}
#if DISABLE_REAL_PROXY
// FIXME: This is a quick workaround for bug #571907
public
#endif
class ClientRuntimeChannel
: CommunicationObject, IClientChannel, IInternalContextChannel
{
ClientRuntime runtime;
EndpointAddress remote_address;
ContractDescription contract;
MessageVersion message_version;
TimeSpan default_open_timeout, default_close_timeout;
IChannel channel;
IChannelFactory factory;
OperationContext context;
#region delegates
readonly ProcessDelegate _processDelegate;
delegate object ProcessDelegate (MethodBase method, string operationName, object [] parameters);
readonly RequestDelegate requestDelegate;
delegate Message RequestDelegate (Message msg, TimeSpan timeout);
readonly SendDelegate sendDelegate;
delegate void SendDelegate (Message msg, TimeSpan timeout);
#endregion
public ClientRuntimeChannel (ServiceEndpoint endpoint,
ChannelFactory channelFactory, EndpointAddress remoteAddress, Uri via)
: this (endpoint.CreateClientRuntime (null), endpoint.Contract, channelFactory.DefaultOpenTimeout, channelFactory.DefaultCloseTimeout, null, channelFactory.OpenedChannelFactory, endpoint.Binding.MessageVersion, remoteAddress, via)
{
}
public ClientRuntimeChannel (ClientRuntime runtime, ContractDescription contract, TimeSpan openTimeout, TimeSpan closeTimeout, IChannel contextChannel, IChannelFactory factory, MessageVersion messageVersion, EndpointAddress remoteAddress, Uri via)
{
if (runtime == null)
throw new ArgumentNullException ("runtime");
if (messageVersion == null)
throw new ArgumentNullException ("messageVersion");
this.runtime = runtime;
this.remote_address = remoteAddress;
if (runtime.Via == null)
runtime.Via = via ?? (remote_address != null ?remote_address.Uri : null);
this.contract = contract;
this.message_version = messageVersion;
default_open_timeout = openTimeout;
default_close_timeout = closeTimeout;
_processDelegate = new ProcessDelegate (Process);
requestDelegate = new RequestDelegate (Request);
sendDelegate = new SendDelegate (Send);
// default values
AllowInitializationUI = true;
OperationTimeout = TimeSpan.FromMinutes (1);
if (contextChannel != null)
channel = contextChannel;
else {
var method = factory.GetType ().GetMethod ("CreateChannel", new Type [] {typeof (EndpointAddress), typeof (Uri)});
try {
channel = (IChannel) method.Invoke (factory, new object [] {remote_address, Via});
this.factory = factory;
} catch (TargetInvocationException ex) {
if (ex.InnerException != null)
throw ex.InnerException;
else
throw;
}
}
}
public ContractDescription Contract {
get { return contract; }
}
public ClientRuntime Runtime {
get { return runtime; }
}
IRequestChannel RequestChannel {
get { return channel as IRequestChannel; }
}
IOutputChannel OutputChannel {
get { return channel as IOutputChannel; }
}
internal IDuplexChannel DuplexChannel {
get { return channel as IDuplexChannel; }
}
public OperationContext Context {
set { context = value; }
}
#region IClientChannel
bool did_interactive_initialization;
public bool AllowInitializationUI { get; set; }
public bool DidInteractiveInitialization {
get { return did_interactive_initialization; }
}
public Uri Via {
get { return runtime.Via; }
}
class DelegatingWaitHandle : WaitHandle
{
public DelegatingWaitHandle (IAsyncResult [] results)
{
this.results = results;
}
IAsyncResult [] results;
protected override void Dispose (bool disposing)
{
if (disposing)
foreach (var r in results)
r.AsyncWaitHandle.Close ();
}
public override bool WaitOne ()
{
foreach (var r in results)
r.AsyncWaitHandle.WaitOne ();
return true;
}
public override bool WaitOne (int millisecondsTimeout)
{
return WaitHandle.WaitAll (ResultWaitHandles, millisecondsTimeout);
}
WaitHandle [] ResultWaitHandles {
get {
var arr = new WaitHandle [results.Length];
for (int i = 0; i < arr.Length; i++)
arr [i] = results [i].AsyncWaitHandle;
return arr;
}
}
public override bool WaitOne (int millisecondsTimeout, bool exitContext)
{
return WaitHandle.WaitAll (ResultWaitHandles, millisecondsTimeout, exitContext);
}
public override bool WaitOne (TimeSpan timeout, bool exitContext)
{
return WaitHandle.WaitAll (ResultWaitHandles, timeout, exitContext);
}
}
class DisplayUIAsyncResult : IAsyncResult
{
public DisplayUIAsyncResult (IAsyncResult [] results)
{
this.results = results;
}
IAsyncResult [] results;
internal IAsyncResult [] Results {
get { return results; }
}
public object AsyncState {
get { return null; }
}
WaitHandle wait_handle;
public WaitHandle AsyncWaitHandle {
get {
if (wait_handle == null)
wait_handle = new DelegatingWaitHandle (results);
return wait_handle;
}
}
public bool CompletedSynchronously {
get {
foreach (var r in results)
if (!r.CompletedSynchronously)
return false;
return true;
}
}
public bool IsCompleted {
get {
foreach (var r in results)
if (!r.IsCompleted)
return false;
return true;
}
}
}
public IAsyncResult BeginDisplayInitializationUI (
AsyncCallback callback, object state)
{
OnInitializationUI ();
IAsyncResult [] arr = new IAsyncResult [runtime.InteractiveChannelInitializers.Count];
int i = 0;
foreach (var init in runtime.InteractiveChannelInitializers)
arr [i++] = init.BeginDisplayInitializationUI (this, callback, state);
return new DisplayUIAsyncResult (arr);
}
public void EndDisplayInitializationUI (
IAsyncResult result)
{
DisplayUIAsyncResult r = (DisplayUIAsyncResult) result;
int i = 0;
foreach (var init in runtime.InteractiveChannelInitializers)
init.EndDisplayInitializationUI (r.Results [i++]);
did_interactive_initialization = true;
}
public void DisplayInitializationUI ()
{
OnInitializationUI ();
foreach (var init in runtime.InteractiveChannelInitializers)
init.EndDisplayInitializationUI (init.BeginDisplayInitializationUI (this, null, null));
did_interactive_initialization = true;
}
void OnInitializationUI ()
{
if (!AllowInitializationUI && runtime.InteractiveChannelInitializers.Count > 0)
throw new InvalidOperationException ("AllowInitializationUI is set to false but the client runtime contains one or more InteractiveChannelInitializers.");
}
public void Dispose ()
{
Close ();
}
public event EventHandler<UnknownMessageReceivedEventArgs> UnknownMessageReceived;
#endregion
#region IContextChannel
[MonoTODO]
public bool AllowOutputBatching { get; set; }
public IInputSession InputSession {
get {
ISessionChannel<IInputSession> ch = RequestChannel as ISessionChannel<IInputSession>;
ch = ch ?? OutputChannel as ISessionChannel<IInputSession>;
if (ch != null)
return ch.Session;
var dch = OutputChannel as ISessionChannel<IDuplexSession>;
return dch != null ? dch.Session : null;
}
}
public EndpointAddress LocalAddress {
get {
var dc = OperationChannel as IDuplexChannel;
return dc != null ? dc.LocalAddress : null;
}
}
[MonoTODO]
public TimeSpan OperationTimeout { get; set; }
public IOutputSession OutputSession {
get {
ISessionChannel<IOutputSession> ch = RequestChannel as ISessionChannel<IOutputSession>;
ch = ch ?? OutputChannel as ISessionChannel<IOutputSession>;
if (ch != null)
return ch.Session;
var dch = OutputChannel as ISessionChannel<IDuplexSession>;
return dch != null ? dch.Session : null;
}
}
public EndpointAddress RemoteAddress {
get { return RequestChannel != null ? RequestChannel.RemoteAddress : OutputChannel.RemoteAddress; }
}
public string SessionId {
get { return OutputSession != null ? OutputSession.Id : InputSession != null ? InputSession.Id : null; }
}
#endregion
// CommunicationObject
protected internal override TimeSpan DefaultOpenTimeout {
get { return default_open_timeout; }
}
protected internal override TimeSpan DefaultCloseTimeout {
get { return default_close_timeout; }
}
protected override void OnAbort ()
{
channel.Abort ();
if (factory != null) // ... is it valid?
factory.Abort ();
}
Action<TimeSpan> close_delegate;
protected override IAsyncResult OnBeginClose (
TimeSpan timeout, AsyncCallback callback, object state)
{
if (close_delegate == null)
close_delegate = new Action<TimeSpan> (OnClose);
return close_delegate.BeginInvoke (timeout, callback, state);
}
protected override void OnEndClose (IAsyncResult result)
{
close_delegate.EndInvoke (result);
}
protected override void OnClose (TimeSpan timeout)
{
DateTime start = DateTime.Now;
if (channel.State == CommunicationState.Opened)
channel.Close (timeout);
}
Action<TimeSpan> open_callback;
protected override IAsyncResult OnBeginOpen (
TimeSpan timeout, AsyncCallback callback, object state)
{
if (open_callback == null)
open_callback = new Action<TimeSpan> (OnOpen);
return open_callback.BeginInvoke (timeout, callback, state);
}
protected override void OnEndOpen (IAsyncResult result)
{
if (open_callback == null)
throw new InvalidOperationException ("Async open operation has not started");
open_callback.EndInvoke (result);
}
protected override void OnOpen (TimeSpan timeout)
{
if (runtime.InteractiveChannelInitializers.Count > 0 && !DidInteractiveInitialization)
throw new InvalidOperationException ("The client runtime is assigned interactive channel initializers, and in such case DisplayInitializationUI must be called before the channel is opened.");
if (channel.State == CommunicationState.Created)
channel.Open (timeout);
}
// IChannel
IChannel OperationChannel {
get { return channel; }
}
public T GetProperty<T> () where T : class
{
if (typeof (T) == typeof (MessageVersion))
return (T) (object) message_version;
return OperationChannel.GetProperty<T> ();
}
// IExtensibleObject<IContextChannel>
IExtensionCollection<IContextChannel> extensions;
public IExtensionCollection<IContextChannel> Extensions {
get {
if (extensions == null)
extensions = new ExtensionCollection<IContextChannel> (this);
return extensions;
}
}
#region Request/Output processing
public IAsyncResult BeginProcess (MethodBase method, string operationName, object [] parameters, AsyncCallback callback, object asyncState)
{
if (context != null)
throw new InvalidOperationException ("another operation is in progress");
context = OperationContext.Current;
return _processDelegate.BeginInvoke (method, operationName, parameters, callback, asyncState);
}
public object EndProcess (MethodBase method, string operationName, object [] parameters, IAsyncResult result)
{
if (result == null)
throw new ArgumentNullException ("result");
if (parameters == null)
throw new ArgumentNullException ("parameters");
// FIXME: the method arguments should be verified to be
// identical to the arguments in the corresponding begin method.
object asyncResult = _processDelegate.EndInvoke (result);
context = null;
return asyncResult;
}
public object Process (MethodBase method, string operationName, object [] parameters)
{
var previousContext = OperationContext.Current;
try {
// Inherit the context from the calling thread
if (this.context != null)
OperationContext.Current = this.context;
return DoProcess (method, operationName, parameters);
} catch (Exception ex) {
throw;
} finally {
// Reset the context before the thread goes back into the pool
OperationContext.Current = previousContext;
}
}
object DoProcess (MethodBase method, string operationName, object [] parameters)
{
if (AllowInitializationUI)
DisplayInitializationUI ();
OperationDescription od = SelectOperation (method, operationName, parameters);
if (State != CommunicationState.Opened)
Open ();
if (!od.IsOneWay)
return Request (od, parameters);
else {
Output (od, parameters);
return null;
}
}
OperationDescription SelectOperation (MethodBase method, string operationName, object [] parameters)
{
string operation;
if (Runtime.OperationSelector != null)
operation = Runtime.OperationSelector.SelectOperation (method, parameters);
else
operation = operationName;
OperationDescription od = contract.Operations.Find (operation);
if (od == null)
throw new Exception (String.Format ("OperationDescription for operation '{0}' was not found in its internally-generated contract.", operation));
return od;
}
void Output (OperationDescription od, object [] parameters)
{
ClientOperation op = runtime.Operations [od.Name];
Send (CreateRequest (op, parameters), OperationTimeout);
}
object Request (OperationDescription od, object [] parameters)
{
ClientOperation op = runtime.Operations [od.Name];
object [] inspections = new object [runtime.MessageInspectors.Count];
Message req = CreateRequest (op, parameters);
for (int i = 0; i < inspections.Length; i++)
inspections [i] = runtime.MessageInspectors [i].BeforeSendRequest (ref req, this);
Message res = Request (req, OperationTimeout);
if (res.IsFault) {
var resb = res.CreateBufferedCopy (runtime.MaxFaultSize);
MessageFault fault = MessageFault.CreateFault (resb.CreateMessage (), runtime.MaxFaultSize);
var conv = OperationChannel.GetProperty<FaultConverter> () ?? FaultConverter.GetDefaultFaultConverter (res.Version);
Exception ex;
if (!conv.TryCreateException (resb.CreateMessage (), fault, out ex)) {
if (fault.HasDetail) {
Type detailType = typeof (ExceptionDetail);
var freader = fault.GetReaderAtDetailContents ();
DataContractSerializer ds = null;
foreach (var fci in op.FaultContractInfos)
if (res.Headers.Action == fci.Action || fci.Serializer.IsStartObject (freader)) {
detailType = fci.Detail;
ds = fci.Serializer;
break;
}
if (ds == null)
ds = new DataContractSerializer (detailType);
var detail = ds.ReadObject (freader);
ex = (Exception) Activator.CreateInstance (typeof (FaultException<>).MakeGenericType (detailType), new object [] {detail, fault.Reason, fault.Code, res.Headers.Action});
}
if (ex == null)
ex = new FaultException (fault);
}
throw ex;
}
for (int i = 0; i < inspections.Length; i++)
runtime.MessageInspectors [i].AfterReceiveReply (ref res, inspections [i]);
if (op.DeserializeReply)
return op.Formatter.DeserializeReply (res, parameters);
else
return res;
}
#region Message-based Request() and Send()
// They are internal for ClientBase<T>.ChannelBase use.
internal Message Request (Message msg, TimeSpan timeout)
{
if (RequestChannel != null)
return RequestChannel.Request (msg, timeout);
else
return RequestCorrelated (msg, timeout, OutputChannel);
}
internal virtual Message RequestCorrelated (Message msg, TimeSpan timeout, IOutputChannel channel)
{
// FIXME: implement ConcurrencyMode check:
// if it is .Single && this instance for a callback channel && the operation is invoked inside service operation, then error.
DateTime startTime = DateTime.Now;
OutputChannel.Send (msg, timeout);
return ((IDuplexChannel) channel).Receive (timeout - (DateTime.Now - startTime));
}
internal IAsyncResult BeginRequest (Message msg, TimeSpan timeout, AsyncCallback callback, object state)
{
return requestDelegate.BeginInvoke (msg, timeout, callback, state);
}
internal Message EndRequest (IAsyncResult result)
{
return requestDelegate.EndInvoke (result);
}
internal void Send (Message msg, TimeSpan timeout)
{
if (OutputChannel != null)
OutputChannel.Send (msg, timeout);
else
RequestChannel.Request (msg, timeout); // and ignore returned message.
}
internal IAsyncResult BeginSend (Message msg, TimeSpan timeout, AsyncCallback callback, object state)
{
return sendDelegate.BeginInvoke (msg, timeout, callback, state);
}
internal void EndSend (IAsyncResult result)
{
sendDelegate.EndInvoke (result);
}
#endregion
Message CreateRequest (ClientOperation op, object [] parameters)
{
MessageVersion version = message_version;
if (version == null)
version = MessageVersion.Default;
Message msg;
if (op.SerializeRequest)
msg = op.Formatter.SerializeRequest (
version, parameters);
else {
if (parameters.Length != 1)
throw new ArgumentException (String.Format ("Argument parameters does not match the expected input. It should contain only a Message, but has {0} parameters", parameters.Length));
if (!(parameters [0] is Message))
throw new ArgumentException (String.Format ("Argument should be only a Message, but has {0}", parameters [0] != null ? parameters [0].GetType ().FullName : "null"));
msg = (Message) parameters [0];
}
context = context ?? OperationContext.Current;
if (context != null) {
// CopyHeadersFrom does not work here (brings duplicates -> error)
foreach (var mh in context.OutgoingMessageHeaders) {
int x = msg.Headers.FindHeader (mh.Name, mh.Namespace, mh.Actor);
if (x >= 0)
msg.Headers.RemoveAt (x);
msg.Headers.Add ((MessageHeader) mh);
}
msg.Properties.CopyProperties (context.OutgoingMessageProperties);
}
// FIXME: disabling MessageId as it's not seen for bug #567672 case. But might be required for PeerDuplexChannel. Check it later.
//if (OutputSession != null)
// msg.Headers.MessageId = new UniqueId (OutputSession.Id);
msg.Properties.AllowOutputBatching = AllowOutputBatching;
if (msg.Version.Addressing.Equals (AddressingVersion.WSAddressing10)) {
if (msg.Headers.MessageId == null)
msg.Headers.MessageId = new UniqueId ();
if (msg.Headers.ReplyTo == null)
msg.Headers.ReplyTo = new EndpointAddress (Constants.WsaAnonymousUri);
if (msg.Headers.To == null && RemoteAddress != null)
msg.Headers.To = RemoteAddress.Uri;
}
return msg;
}
#endregion
}
}