本文整理汇总了VB.NET中System.IdentityModel.Policy.IAuthorizationPolicy接口的典型用法代码示例。如果您正苦于以下问题:VB.NET IAuthorizationPolicy接口的具体用法?VB.NET IAuthorizationPolicy怎么用?VB.NET IAuthorizationPolicy使用的例子?那么, 这里精选的接口代码示例或许可以为您提供帮助。
在下文中一共展示了IAuthorizationPolicy接口的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: MyAuthorizationPolicy
Public Class MyAuthorizationPolicy
Implements IAuthorizationPolicy
Private value_id As String
Public Sub New()
value_id = Guid.NewGuid().ToString()
End Sub
Public Function Evaluate(ByVal evaluationContext As EvaluationContext, _
ByRef state As Object) As Boolean Implements IAuthorizationPolicy.Evaluate
Dim bRet As Boolean = False
Dim customstate As CustomAuthState = Nothing
' If state is null, then this method has not been called before, so
' set up a custom state.
If state Is Nothing Then
customstate = New CustomAuthState()
state = customstate
Else
customstate = CType(state, CustomAuthState)
End If
Console.WriteLine("Inside MyAuthorizationPolicy::Evaluate")
' If the claims have not been added yet...
If Not customstate.ClaimsAdded Then
' Create an empty list of Claims
Dim claims As New List(Of Claim)
' Iterate through each of the claimsets in the evaluation context.
Dim cs As ClaimSet
For Each cs In evaluationContext.ClaimSets
' Look for Name claims in the current claim set.
Dim c As Claim
For Each c In cs.FindClaims(ClaimTypes.Name, Rights.PossessProperty)
' Get the list of operations the given username is allowed to call.
Dim s As String
For Each s In GetAllowedOpList(c.Resource.ToString())
' Add claims to the list
claims.Add(New Claim("http://example.org/claims/allowedoperation", _
s, Rights.PossessProperty))
Console.WriteLine("Claim added {0}", s)
Next s
Next c
Next cs
' Add claims to the evaluation context.
evaluationContext.AddClaimSet(Me, New DefaultClaimSet(Me.Issuer, claims))
' Record that claims have been added.
customstate.ClaimsAdded = True
' Return true, which indicates the method need not to be called again.
bRet = True
Else
' Should never get here, but just in case...
bRet = True
End If
Return bRet
End Function 'Evaluate
Public ReadOnly Property Issuer() As ClaimSet Implements IAuthorizationPolicy.Issuer
Get
Return ClaimSet.System
End Get
End Property
Public ReadOnly Property Id() As String Implements IAuthorizationPolicy.Id
Get
Return value_id
End Get
End Property
' This method returns a collection of action strings that indicate the
' operations that the specified username is allowed to call.
Private Shared Function GetAllowedOpList(ByVal username As String) As IEnumerable(Of String)
Dim ret As New List(Of String)
If username = "test1" Then
ret.Add("http://Microsoft.ServiceModel.Samples/ICalculator/Add")
ret.Add("http://Microsoft.ServiceModel.Samples/ICalculator/Multiply")
ret.Add("http://Microsoft.ServiceModel.Samples/ICalculator/Subtract")
ElseIf username = "test2" Then
ret.Add("http://Microsoft.ServiceModel.Samples/ICalculator/Add")
ret.Add("http://Microsoft.ServiceModel.Samples/ICalculator/Subtract")
End If
Return ret
End Function
' This is an internal class for state.
Class CustomAuthState
Private bClaimsAdded As Boolean
Public Sub New()
End Sub
Public Property ClaimsAdded() As Boolean
Get
Return bClaimsAdded
End Get
Set(ByVal value As Boolean)
bClaimsAdded = value
End Set
End Property
End Class
End Class