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
|
//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Dispatcher
{
using System.ServiceModel.Channels;
using System.ServiceModel;
using System.ServiceModel.Description;
using System.Collections.ObjectModel;
using System.Collections.Generic;
using System.Xml;
using System.Security;
using System.Security.Permissions;
using System.ServiceModel.MsmqIntegration;
using System.Runtime;
class PartialTrustValidationBehavior : IServiceBehavior, IEndpointBehavior
{
static PartialTrustValidationBehavior instance = null;
internal static PartialTrustValidationBehavior Instance
{
get
{
// no need to synchronize -- it's ok if two are created
if (instance == null)
{
instance = new PartialTrustValidationBehavior();
}
return instance;
}
}
void ValidateEndpoint(ServiceEndpoint endpoint)
{
Binding binding = endpoint.Binding;
if (binding != null)
{
new BindingValidator(endpoint.Binding).Validate();
}
}
#region IEndpointBehavior Members
void IEndpointBehavior.Validate(ServiceEndpoint endpoint)
{
if (endpoint == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("endpoint");
ValidateEndpoint(endpoint);
}
void IEndpointBehavior.AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters) { }
void IEndpointBehavior.ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher) { }
void IEndpointBehavior.ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime) { }
#endregion
#region IServiceBehavior Members
public void Validate(ServiceDescription description, ServiceHostBase serviceHostBase)
{
if (description == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("description");
for (int i = 0; i < description.Endpoints.Count; i++)
{
ServiceEndpoint endpoint = description.Endpoints[i];
if (endpoint != null)
{
ValidateEndpoint(endpoint);
}
}
}
public void AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, Collection<ServiceEndpoint> endpoints, BindingParameterCollection bindingParameters) { }
public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) { }
#endregion
struct BindingValidator
{
static Type[] unsupportedBindings = new Type[]
{
typeof(NetNamedPipeBinding),
typeof(WSDualHttpBinding),
typeof(WS2007FederationHttpBinding),
typeof(WSFederationHttpBinding),
typeof(NetMsmqBinding),
#pragma warning disable 0618
typeof(NetPeerTcpBinding),
#pragma warning restore 0618
typeof(MsmqIntegrationBinding),
};
static Type[] unsupportedBindingElements = new Type[]
{
typeof(AsymmetricSecurityBindingElement),
typeof(CompositeDuplexBindingElement),
typeof(MsmqTransportBindingElement),
typeof(NamedPipeTransportBindingElement),
typeof(OneWayBindingElement),
#pragma warning disable 0618
typeof(PeerCustomResolverBindingElement),
typeof(PeerTransportBindingElement),
typeof(PnrpPeerResolverBindingElement),
#pragma warning restore 0618
typeof(ReliableSessionBindingElement),
typeof(SymmetricSecurityBindingElement),
typeof(TransportSecurityBindingElement),
typeof(MtomMessageEncodingBindingElement),
};
Binding binding;
internal BindingValidator(Binding binding)
{
this.binding = binding;
}
internal void Validate()
{
Fx.Assert(binding != null, "BindingValidator was not constructed with a valid Binding instance");
Type bindingType = binding.GetType();
if (IsUnsupportedBindingType(bindingType))
{
UnsupportedSecurityCheck(SR.FullTrustOnlyBindingSecurityCheck1, bindingType);
}
// special-case error message for WSHttpBindings
bool isWSHttpBinding = typeof(WSHttpBinding).IsAssignableFrom(bindingType);
string sr = isWSHttpBinding ? SR.FullTrustOnlyBindingElementSecurityCheckWSHttpBinding1 : SR.FullTrustOnlyBindingElementSecurityCheck1;
BindingElementCollection elements = binding.CreateBindingElements();
foreach (BindingElement element in elements)
{
Type bindingElementType = element.GetType();
if (element != null && IsUnsupportedBindingElementType(bindingElementType))
{
UnsupportedSecurityCheck(sr, bindingElementType);
}
}
}
bool IsUnsupportedBindingType(Type bindingType)
{
for (int i = 0; i < unsupportedBindings.Length; i++)
{
if (unsupportedBindings[i] == bindingType)
return true;
}
return false;
}
bool IsUnsupportedBindingElementType(Type bindingElementType)
{
for (int i = 0; i < unsupportedBindingElements.Length; i++)
{
if (unsupportedBindingElements[i] == bindingElementType)
return true;
}
return false;
}
static readonly PermissionSet fullTrust = new PermissionSet(PermissionState.Unrestricted);
void UnsupportedSecurityCheck(string resource, Type type)
{
try
{
fullTrust.Demand();
}
catch (SecurityException)
{
throw new InvalidOperationException(SR.GetString(resource, binding.Name, type));
}
}
}
}
}
|
