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  • Artykuł

Metoda IAuthorizationExtension.CheckAccess (String, IntPtr, array<Byte[], DatasourceOperation)

Wskazuje, czy użytkownik jest uprawniony do dostępu do element w bazie danych serwer raportów dla danego danych źródło operacji.

Przestrzeń nazw:  Microsoft.ReportingServices.Interfaces
Zestawy:   Microsoft.ReportingServices.SharePoint.UI.WebParts (w Microsoft.ReportingServices.SharePoint.UI.WebParts.dll)
  Microsoft.ReportingServices.Interfaces (w Microsoft.ReportingServices.Interfaces.dll)

Składnia

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

returnValue = instance.CheckAccess(userName, _
    userToken, secDesc, requiredOperation)

[StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey = "0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")]
bool CheckAccess(
    string userName,
    IntPtr userToken,
    byte[] secDesc,
    DatasourceOperation requiredOperation
)

[StrongNameIdentityPermissionAttribute(SecurityAction::LinkDemand, PublicKey = L"0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")]
bool CheckAccess(
    String^ userName, 
    IntPtr userToken, 
    array<unsigned char>^ secDesc, 
    DatasourceOperation requiredOperation
)

[<StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey = "0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")>]
abstract CheckAccess : 
        userName:string * 
        userToken:IntPtr * 
        secDesc:byte[] * 
        requiredOperation:DatasourceOperation -> bool 

function CheckAccess(
    userName : String, 
    userToken : IntPtr, 
    secDesc : byte[], 
    requiredOperation : DatasourceOperation
) : boolean

Parametry

  • userName
    Typ: System.String
    Nazwa użytkownika żądającego dostępu serwer raportów.
  • userToken
    Typ: System.IntPtr
    Token konta użytkownika.Token ten jest używany głównie przez serwer raportów jako uchwyt do konta systemu Microsoft Windows w celu wspierania zarządzania poświadczeniami uwierzytelniania systemu Windows.
  • secDesc
    Typ: array<System.Byte[]
    Deskryptor zabezpieczeń dla element.

Wartość zwracana

Typ: System.Boolean
Zwraca true Jeśli aktualnie uwierzytelniony użytkownik ma dostęp do element oparte na podany deskryptor operacji i zabezpieczeń.

Przykłady

Poniższy przykład kodu używa CheckAccess metoda oceniania poświadczenia autoryzacja użytkownika deskryptora zabezpieczeń dla element baza danych serwera raportów.

Public Function CheckAccess(userName As String, userToken As IntPtr, secDesc() As Byte, requiredOperation As DatasourceOperation) 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 DatasourceOperation
         For Each aclOperation In  ace.DatasourceOperations
            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, DatasourceOperation 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(DatasourceOperation aclOperation in ace.DatasourceOperations)
         {
             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;
}