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Méthode IAuthorizationExtension.CheckAccess (String, IntPtr, array<Byte , ResourceOperation)

Indicates whether a user is authorized to access an item in the report server database for a given resource operation.

Espace de noms :  Microsoft.ReportingServices.Interfaces
Assemblys :   Microsoft.ReportingServices.SharePoint.UI.WebParts (en Microsoft.ReportingServices.SharePoint.UI.WebParts.dll)
  Microsoft.ReportingServices.Interfaces (en Microsoft.ReportingServices.Interfaces.dll)

Syntaxe

'Déclaration
<StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey := "0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")> _
Function CheckAccess ( _
    userName As String, _
    userToken As IntPtr, _
    secDesc As Byte(), _
    requiredOperation As ResourceOperation _
) As Boolean
'Utilisation
Dim instance As IAuthorizationExtension 
Dim userName As String 
Dim userToken As IntPtr 
Dim secDesc As Byte()
Dim requiredOperation As ResourceOperation 
Dim returnValue As Boolean 

returnValue = instance.CheckAccess(userName, _
    userToken, secDesc, requiredOperation)
[StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey = "0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")]
bool CheckAccess(
    string userName,
    IntPtr userToken,
    byte[] secDesc,
    ResourceOperation requiredOperation
)
[StrongNameIdentityPermissionAttribute(SecurityAction::LinkDemand, PublicKey = L"0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")]
bool CheckAccess(
    String^ userName, 
    IntPtr userToken, 
    array<unsigned char>^ secDesc, 
    ResourceOperation requiredOperation
)
[<StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey = "0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")>]
abstract CheckAccess : 
        userName:string * 
        userToken:IntPtr * 
        secDesc:byte[] * 
        requiredOperation:ResourceOperation -> bool
function CheckAccess(
    userName : String, 
    userToken : IntPtr, 
    secDesc : byte[], 
    requiredOperation : ResourceOperation
) : boolean

Paramètres

  • userName
    Type : System.String
    The name of the user requesting access to the report server.
  • userToken
    Type : System.IntPtr
    A user account token. This token is primarily used by the report server as a handle to a Microsoft Windows account in support of credential management for Windows Authentication.
  • secDesc
    Type : array<System.Byte[]
    The security descriptor for the item.

Valeur de retour

Type : System.Boolean
Returns true if the currently authenticated user is granted access to the item based on the supplied operation and security descriptor.

Exemples

The following example code uses the CheckAccess method to evaluate a user's authorization credentials against a security descriptor for an item in the report server database.

Public Function CheckAccess(userName As String, userToken As IntPtr, secDesc() As Byte, requiredOperation As ResourceOperation) As Boolean
   Dim acl As AceCollection = DeserializeAcl(secDesc)
   Dim ace As AceStruct
   For Each ace In  acl
      ' First check to see if the user or group has an access control entry for the item
      If userName = ace.PrincipalName Then
         ' If an entry is found, return true if the given required operation
         ' is contained in the ACE structure.
         Dim aclOperation As ResourceOperation
         For Each aclOperation In  ace.ResourceOperations
            If aclOperation = requiredOperation Then
               Return True
            End If
         Next aclOperation
      End If
   Next ace
   Return False
End Function 'CheckAccess

Private Function DeserializeAcl(secDesc() As Byte) As AceCollection
   Dim bf As New BinaryFormatter()
   Dim sdStream As New MemoryStream(secDesc)
   Dim acl As AceCollection = CType(bf.Deserialize(sdStream), AceCollection)
   Return acl
End Function 'DeserializeAcl
public bool CheckAccess(string userName, IntPtr userToken, byte[] secDesc, ResourceOperation requiredOperation)
{
   AceCollection acl = DeserializeAcl(secDesc);
   foreach(AceStruct ace in acl)
   {
       // First check to see if the user or group has an access control entry for the item
      if (userName == ace.PrincipalName)
      {
          // If an entry is found, return true if the given required operation
          // is contained in the ACE structure.
         foreach(ResourceOperation aclOperation in ace.ResourceOperations)
         {
             if (aclOperation == requiredOperation)
                return true;
         }
      }
   }
   return false;
}

private AceCollection DeserializeAcl(byte[] secDesc)
{
   BinaryFormatter bf = new BinaryFormatter();
   MemoryStream sdStream = new MemoryStream(secDesc);
   AceCollection acl = (AceCollection)bf.Deserialize(sdStream);
   return acl;
}

Voir aussi

Référence

IAuthorizationExtension Interface

Surcharge CheckAccess

Espace de noms Microsoft.ReportingServices.Interfaces