Code:
/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Dispatcher / PartialTrustValidationBehavior.cs / 1 / PartialTrustValidationBehavior.cs
//------------------------------------------------------------ // 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; 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, Collectionendpoints, BindingParameterCollection bindingParameters) { } public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) { } #endregion struct BindingValidator { static Type[] unsupportedBindings = new Type[] { typeof(NetTcpBinding), typeof(NetNamedPipeBinding), typeof(WSDualHttpBinding), typeof(WS2007FederationHttpBinding), typeof(WSFederationHttpBinding), typeof(NetMsmqBinding), typeof(NetPeerTcpBinding), typeof(MsmqIntegrationBinding), }; static Type[] unsupportedBindingElements = new Type[] { typeof(AsymmetricSecurityBindingElement), typeof(CompositeDuplexBindingElement), typeof(MsmqTransportBindingElement), typeof(NamedPipeTransportBindingElement), typeof(OneWayBindingElement), typeof(PeerCustomResolverBindingElement), typeof(PeerTransportBindingElement), typeof(PnrpPeerResolverBindingElement), typeof(ReliableSessionBindingElement), typeof(SymmetricSecurityBindingElement), typeof(TcpTransportBindingElement), typeof(TransportSecurityBindingElement), typeof(MtomMessageEncodingBindingElement), }; Binding binding; internal BindingValidator(Binding binding) { this.binding = binding; } internal void Validate() { System.Diagnostics.Debug.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)); } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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