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//----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System.Collections.Generic;
using System.ServiceModel;
using System.ServiceModel.Diagnostics;
using System.Runtime;
using System.ServiceModel.Diagnostics.Application;
using System.Runtime.Diagnostics;
abstract class HttpTransportManager : TransportManager, ITransportManagerRegistration
{
volatile Dictionary<string, UriPrefixTable<HttpChannelListener>> addressTables;
readonly HostNameComparisonMode hostNameComparisonMode;
readonly Uri listenUri;
readonly string realm;
internal HttpTransportManager()
{
this.addressTables = new Dictionary<string, UriPrefixTable<HttpChannelListener>>();
}
internal HttpTransportManager(Uri listenUri, HostNameComparisonMode hostNameComparisonMode)
: this()
{
this.hostNameComparisonMode = hostNameComparisonMode;
this.listenUri = listenUri;
}
internal HttpTransportManager(Uri listenUri, HostNameComparisonMode hostNameComparisonMode, string realm)
: this(listenUri, hostNameComparisonMode)
{
this.realm = realm;
}
internal string Realm
{
get
{
return this.realm;
}
}
public HostNameComparisonMode HostNameComparisonMode
{
get
{
return this.hostNameComparisonMode;
}
}
// are we hosted in Asp.Net? Default is false.
internal bool IsHosted
{
get;
set;
}
internal override string Scheme
{
get
{
return Uri.UriSchemeHttp;
}
}
internal virtual UriPrefixTable<ITransportManagerRegistration> TransportManagerTable
{
get
{
return HttpChannelListener.StaticTransportManagerTable;
}
}
public Uri ListenUri
{
get
{
return this.listenUri;
}
}
protected void Fault(Exception exception)
{
lock (ThisLock)
{
foreach (KeyValuePair<string, UriPrefixTable<HttpChannelListener>> pair in this.addressTables)
{
this.Fault(pair.Value, exception);
}
}
}
internal virtual bool IsCompatible(HttpChannelListener listener)
{
return (
(this.hostNameComparisonMode == listener.HostNameComparisonMode) &&
(this.realm == listener.Realm)
);
}
internal override void OnClose(TimeSpan timeout)
{
Cleanup();
}
internal override void OnAbort()
{
Cleanup();
base.OnAbort();
}
void Cleanup()
{
this.TransportManagerTable.UnregisterUri(this.ListenUri, this.HostNameComparisonMode);
}
protected void StartReceiveBytesActivity(ServiceModelActivity activity, Uri requestUri)
{
Fx.Assert(DiagnosticUtility.ShouldUseActivity, "should only call this if we're using SM Activities");
ServiceModelActivity.Start(activity, SR.GetString(SR.ActivityReceiveBytes, requestUri.ToString()), ActivityType.ReceiveBytes);
}
protected void TraceMessageReceived(EventTraceActivity eventTraceActivity, Uri listenUri)
{
if (TD.HttpMessageReceiveStartIsEnabled())
{
TD.HttpMessageReceiveStart(eventTraceActivity);
}
}
protected bool TryLookupUri(Uri requestUri, string requestMethod,
HostNameComparisonMode hostNameComparisonMode, bool isWebSocketRequest, out HttpChannelListener listener)
{
listener = null;
if (isWebSocketRequest)
{
Fx.Assert(StringComparer.OrdinalIgnoreCase.Compare(requestMethod, "GET") == 0, "The requestMethod must be GET in WebSocket case.");
requestMethod = WebSocketTransportSettings.WebSocketMethod;
}
if (requestMethod == null)
{
requestMethod = string.Empty;
}
UriPrefixTable<HttpChannelListener> addressTable;
Dictionary<string, UriPrefixTable<HttpChannelListener>> localAddressTables = addressTables;
// check for a method match if necessary
HttpChannelListener methodListener = null;
if (requestMethod.Length > 0)
{
if (localAddressTables.TryGetValue(requestMethod, out addressTable))
{
if (addressTable.TryLookupUri(requestUri, hostNameComparisonMode, out methodListener)
&& string.Compare(requestUri.AbsolutePath, methodListener.Uri.AbsolutePath, StringComparison.OrdinalIgnoreCase) != 0)
{
methodListener = null;
}
}
}
// and also check the wildcard bucket
if (localAddressTables.TryGetValue(string.Empty, out addressTable)
&& addressTable.TryLookupUri(requestUri, hostNameComparisonMode, out listener))
{
if (methodListener != null && methodListener.Uri.AbsoluteUri.Length >= listener.Uri.AbsoluteUri.Length)
{
listener = methodListener;
}
}
else
{
listener = methodListener;
}
return (listener != null);
}
internal override void Register(TransportChannelListener channelListener)
{
string method = ((HttpChannelListener)channelListener).Method;
UriPrefixTable<HttpChannelListener> addressTable;
if (!addressTables.TryGetValue(method, out addressTable))
{
lock (ThisLock)
{
if (!addressTables.TryGetValue(method, out addressTable))
{
Dictionary<string, UriPrefixTable<HttpChannelListener>> newAddressTables =
new Dictionary<string, UriPrefixTable<HttpChannelListener>>(addressTables);
addressTable = new UriPrefixTable<HttpChannelListener>();
newAddressTables[method] = addressTable;
addressTables = newAddressTables;
}
}
}
addressTable.RegisterUri(channelListener.Uri,
channelListener.InheritBaseAddressSettings ? hostNameComparisonMode : channelListener.HostNameComparisonModeInternal,
(HttpChannelListener)channelListener);
}
IList<TransportManager> ITransportManagerRegistration.Select(TransportChannelListener channelListener)
{
IList<TransportManager> result = null;
if (this.IsCompatible((HttpChannelListener)channelListener))
{
result = new List<TransportManager>();
result.Add(this);
}
return result;
}
internal override void Unregister(TransportChannelListener channelListener)
{
UriPrefixTable<HttpChannelListener> addressTable;
if (!addressTables.TryGetValue(((HttpChannelListener)channelListener).Method, out addressTable))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(
SR.ListenerFactoryNotRegistered, channelListener.Uri)));
}
HostNameComparisonMode registeredMode = channelListener.InheritBaseAddressSettings ? hostNameComparisonMode : channelListener.HostNameComparisonModeInternal;
EnsureRegistered(addressTable, (HttpChannelListener)channelListener, registeredMode);
addressTable.UnregisterUri(channelListener.Uri, registeredMode);
}
protected class ActivityHolder : IDisposable
{
internal HttpRequestContext context;
internal ServiceModelActivity activity;
public ActivityHolder(ServiceModelActivity activity, HttpRequestContext requestContext)
{
Fx.Assert(requestContext != null, "requestContext cannot be null.");
this.activity = activity;
this.context = requestContext;
}
public void Dispose()
{
if (this.activity != null)
{
this.activity.Dispose();
}
}
}
}
}
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