[转]How to: Create a Custom Principal Identity
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了[转]How to: Create a Custom Principal Identity相关的知识，希望对你有一定的参考价值。
本文转自：https://msdn.microsoft.com/en-us/library/aa702720(v=vs.110).aspx
The PrincipalPermissionAttribute is a declarative means of controlling access to service methods. When using this attribute, the PrincipalPermissionMode enumeration specifies the mode for performing authorization checks. When this mode is set to Custom, it enables the user to specify a custom IPrincipal class returned by the CurrentPrincipal property. This topic illustrates the scenario when Custom is used in combination with a custom authorization policy and a custom principal.
For more information about using the PrincipalPermissionAttribute, see How to: Restrict Access with the PrincipalPermissionAttribute Class.
Example
namespace CustomMode
{
public class Test
{
public static void Main()
{
try
{
ShowPrincipalPermissionModeCustom ppwm = new ShowPrincipalPermissionModeCustom();
ppwm.Run();
}
catch (Exception exc)
{
Console.WriteLine("Error: {0}", exc.Message);
Console.ReadLine();
}
}
}
class ShowPrincipalPermissionModeCustom
{
[ServiceContract]
interface ISecureService
{
[OperationContract]
string Method1(string request);
}
[ServiceBehavior]
class SecureService : ISecureService
{
[PrincipalPermission(SecurityAction.Demand, Role = "everyone")]
public string Method1(string request)
{
return String.Format("Hello, \"{0}\"", Thread.CurrentPrincipal.Identity.Name);
}
}
public void Run()
{
Uri serviceUri = new Uri(@"http://localhost:8006/Service");
ServiceHost service = new ServiceHost(typeof(SecureService));
service.AddServiceEndpoint(typeof(ISecureService), GetBinding(), serviceUri);
List<IAuthorizationPolicy> policies = new List<IAuthorizationPolicy>();
policies.Add(new CustomAuthorizationPolicy());
service.Authorization.ExternalAuthorizationPolicies = policies.AsReadOnly();
service.Authorization.PrincipalPermissionMode = PrincipalPermissionMode.Custom;
service.Open();
EndpointAddress sr = new EndpointAddress(
serviceUri, EndpointIdentity.CreateUpnIdentity(WindowsIdentity.GetCurrent().Name));
ChannelFactory<ISecureService> cf = new ChannelFactory<ISecureService>(GetBinding(), sr);
ISecureService client = cf.CreateChannel();
Console.WriteLine("Client received response from Method1: {0}", client.Method1("hello"));
((IChannel)client).Close();
Console.ReadLine();
service.Close();
}
public static Binding GetBinding()
{
WSHttpBinding binding = new WSHttpBinding(SecurityMode.Message);
binding.Security.Message.ClientCredentialType = MessageCredentialType.Windows;
return binding;
}
class CustomAuthorizationPolicy : IAuthorizationPolicy
{
string id = Guid.NewGuid().ToString();
public string Id
{
get { return this.id; }
}
public ClaimSet Issuer
{
get { return ClaimSet.System; }
}
public bool Evaluate(EvaluationContext context, ref object state)
{
object obj;
if (!context.Properties.TryGetValue("Identities", out obj))
return false;
IList<IIdentity> identities = obj as IList<IIdentity>;
if (obj == null || identities.Count <= 0)
return false;
context.Properties["Principal"] = new CustomPrincipal(identities[0]);
return true;
}
}
class CustomPrincipal : IPrincipal
{
IIdentity identity;
public CustomPrincipal(IIdentity identity)
{
this.identity = identity;
}
public IIdentity Identity
{
get { return this.identity; }
}
public bool IsInRole(string role)
{
return true;
}
}
}
}
Compiling the Code
References to the following namespaces are needed to compile the code:
以上是关于[转]How to: Create a Custom Principal Identity的主要内容，如果未能解决你的问题，请参考以下文章
[转]SQL - Create XML - How to set Unicode UTF-8
How difficult is it to create a JavaScript framework?
How to create vlan on Linux (with Cisco Catalyst Switch)