1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System.Collections.Generic;
using System.ComponentModel;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Description;
using System.ServiceModel.Security;
using System.Xml;
public sealed class CompositeDuplexBindingElement : BindingElement, IPolicyExportExtension
{
Uri clientBaseAddress;
public CompositeDuplexBindingElement()
{
}
CompositeDuplexBindingElement(CompositeDuplexBindingElement elementToBeCloned)
: base(elementToBeCloned)
{
this.clientBaseAddress = elementToBeCloned.ClientBaseAddress;
}
[DefaultValue(null)]
public Uri ClientBaseAddress
{
get
{
return this.clientBaseAddress;
}
set
{
this.clientBaseAddress = value;
}
}
public override BindingElement Clone()
{
return new CompositeDuplexBindingElement(this);
}
public override IChannelFactory<TChannel> BuildChannelFactory<TChannel>(BindingContext context)
{
if (context == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
}
if (typeof(TChannel) != typeof(IOutputChannel))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("TChannel",
SR.GetString(SR.ChannelTypeNotSupported, typeof(TChannel)));
}
return context.BuildInnerChannelFactory<TChannel>();
}
public override IChannelListener<TChannel> BuildChannelListener<TChannel>(BindingContext context)
{
if (context == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
}
if (typeof(TChannel) != typeof(IInputChannel))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("TChannel",
SR.GetString(SR.ChannelTypeNotSupported, typeof(TChannel)));
}
if (context.ListenUriBaseAddress == null)
{
if (this.clientBaseAddress != null)
{
context.ListenUriBaseAddress = this.clientBaseAddress;
context.ListenUriRelativeAddress = Guid.NewGuid().ToString();
context.ListenUriMode = ListenUriMode.Explicit;
}
else
{
//
#pragma warning suppress 56506 // [....], context.Binding will never be null.
context.ListenUriRelativeAddress = String.Empty;
context.ListenUriMode = ListenUriMode.Unique;
}
}
return context.BuildInnerChannelListener<TChannel>();
}
public override bool CanBuildChannelFactory<TChannel>(BindingContext context)
{
if (context == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
}
return (typeof(TChannel) == typeof(IOutputChannel))
&& context.CanBuildInnerChannelFactory<IOutputChannel>();
}
public override bool CanBuildChannelListener<TChannel>(BindingContext context)
{
if (context == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
}
return (typeof(TChannel) == typeof(IInputChannel))
&& context.CanBuildInnerChannelListener<IInputChannel>();
}
ChannelProtectionRequirements GetProtectionRequirements()
{
ChannelProtectionRequirements result = new ChannelProtectionRequirements();
XmlQualifiedName refPropHeaderName = new XmlQualifiedName(XD.UtilityDictionary.UniqueEndpointHeaderName.Value,
XD.UtilityDictionary.UniqueEndpointHeaderNamespace.Value);
MessagePartSpecification headerParts = new MessagePartSpecification(refPropHeaderName);
headerParts.MakeReadOnly();
result.IncomingSignatureParts.AddParts(headerParts);
result.OutgoingSignatureParts.AddParts(headerParts);
return result;
}
public override T GetProperty<T>(BindingContext context)
{
if (context == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
}
if (typeof(T) == typeof(ISecurityCapabilities))
{
ISecurityCapabilities lowerCapabilities = context.GetInnerProperty<ISecurityCapabilities>();
if (lowerCapabilities != null)
{
// composite duplex cannot ensure that messages it receives are from the part it sends
// messages to. So it cannot offer server auth
return (T)(object)(new SecurityCapabilities(lowerCapabilities.SupportsClientAuthentication,
false, lowerCapabilities.SupportsClientWindowsIdentity, lowerCapabilities.SupportedRequestProtectionLevel,
System.Net.Security.ProtectionLevel.None));
}
else
{
return null;
}
}
else if (typeof(T) == typeof(ChannelProtectionRequirements))
{
ChannelProtectionRequirements myRequirements = this.GetProtectionRequirements();
myRequirements.Add(context.GetInnerProperty<ChannelProtectionRequirements>() ?? new ChannelProtectionRequirements());
return (T)(object)myRequirements;
}
else
{
return context.GetInnerProperty<T>();
}
}
internal override bool IsMatch(BindingElement b)
{
if (b == null)
{
return false;
}
CompositeDuplexBindingElement duplex = b as CompositeDuplexBindingElement;
if (duplex == null)
{
return false;
}
return (this.clientBaseAddress == duplex.clientBaseAddress);
}
void IPolicyExportExtension.ExportPolicy(MetadataExporter exporter, PolicyConversionContext context)
{
if (context == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
exporter.State[typeof(SupportedAddressingMode).Name] = SupportedAddressingMode.NonAnonymous;
context.GetBindingAssertions().Add(CreateCompositeDuplexAssertion());
}
static XmlElement CreateCompositeDuplexAssertion()
{
XmlDocument doc = new XmlDocument();
return doc.CreateElement(TransportPolicyConstants.CompositeDuplexPrefix, TransportPolicyConstants.CompositeDuplex, TransportPolicyConstants.CompositeDuplexNamespace);
}
}
}
|
