Article
03/31/2012

Octroi, révocation et refus d'autorisations

L'objet ServerPermission est utilisé pour attribuer un jeu d'autorisations ou une autorisation de serveur individuelle à l'objet ServerPermissionSet. Pour les autorisations de niveau serveur, le bénéficiaire fait référence à une ouverture de session. Les ouvertures de session authentifiées par Windows sont répertoriées comme noms d'utilisateur Windows. Lorsque cet exemple de code est exécuté, il révoque l'autorisation du bénéficiaire et vérifie qu'il a été supprimé avec la méthode EnumServerPermissions.

Les autorisations relatives à la base de données et les autorisations relatives aux objets de base de données peuvent être attribuées de la même façon en utilisant l'objet DatabasePermissionSet et l'objet ObjectPermissionSet.

Exemple

Pour utiliser un exemple de code fourni, vous devrez sélectionner l'environnement, le modèle et le langage de programmation dans lequel créer votre application. Pour plus d'informations, consultez Procédure : créer un projet SMO Visual Basic dans Visual Studio .NET ou Procédure : créer un projet SMO Visual C# dans Visual Studio .NET.

Octroi d'autorisations de serveur en Visual Basic

Cet exemple de code octroie les autorisations Create Endpoint et Alter Any Endpoint à la connexion spécifiée, puis énumère et affiche les autorisations. L'une des autorisations est révoquée, puis les autorisations sont à nouveau énumérées. Cet exemple suppose que la connexion spécifiée dispose des autorisations de démarrage requises.

' compile with: /r:Microsoft.SqlServer.Smo.dll /r:Microsoft.SqlServer.ConnectionInfo.dll 
' /r:Microsoft.SqlServer.Management.Sdk.Sfc.dll /r:Microsoft.SqlServer.SqlEnum.dll
Imports Microsoft.SqlServer.Management.Smo

Public Class A
   Public Shared Sub Main()
      Dim svr As New Server()

      ' Creating the logins (Grantee)
      Dim vGrantee As [String] = "Grantee1"
      Dim login As New Login(svr, vGrantee)
      login.LoginType = LoginType.SqlLogin
      login.Create("password@1")

      Dim vGrantee2 As [String] = "Grantee2"
      Dim login2 As New Login(svr, vGrantee2)
      login2.LoginType = LoginType.SqlLogin
      login2.Create("password@2")

      ' Define a ServerPermissionSet that contains permission to Create Endpoint and Alter Any Endpoint. 
      Dim sps As New ServerPermissionSet(ServerPermission.CreateEndpoint)
      sps.Add(ServerPermission.AlterAnyEndpoint)

      ' Grant Create Endpoint and Alter Any Endpoint permissions to Grantee
      svr.Grant(sps, vGrantee)
      svr.Grant(sps, vGrantee2)

      ' Enumerate and display the server permissions in the set for the grantee specified in the vGrantee string variable. 
      Dim spis As ServerPermissionInfo() = svr.EnumServerPermissions(vGrantee, sps)
      'enumerates all server permissions for the Grantee from the specified permission set
      Console.WriteLine("===========Before revoke==================")
      For Each spi As ServerPermissionInfo In spis
         Console.WriteLine(spi.Grantee + " has " & spi.PermissionType.ToString() & " permission.")
      Next
      Console.WriteLine(" ")

      ' Revoke the create endpoint permission from the grantee. 
      svr.Revoke(New ServerPermissionSet(ServerPermission.CreateEndpoint), vGrantee)

      ' Enumerate and display the server permissions in the set for the grantee specified in the vGrantee string variable. 
      spis = svr.EnumServerPermissions(vGrantee, sps)

      Console.WriteLine("=========After revoke================")
      For Each spi As ServerPermissionInfo In spis
         Console.WriteLine(spi.Grantee + " has " & spi.PermissionType.ToString() & " permission.")
      Next
      Console.WriteLine(" ")

      ' Grant the Create Server Role permission to the grantee. 
      svr.Grant(New ServerPermissionSet(ServerPermission.ViewAnyDatabase), vGrantee)
      ' Enumerate and display the server permissions for the grantee specified in the vGrantee string variable. 

      ' enumerates all server permissions for the Grantee
      spis = svr.EnumServerPermissions(vGrantee)

      Console.WriteLine("=========After grant===============")

      For Each spi As ServerPermissionInfo In spis
         Console.WriteLine(spi.Grantee + " has " & spi.PermissionType.ToString() & " permission.")
      Next
      Console.WriteLine("")

      ' Enumerate and display the server permissions in the set for all logins. 
      spis = svr.EnumServerPermissions(sps)
      'enumerates all server permissions in the set for all logins
      Console.WriteLine("=========After grant===============")

      For Each spi As ServerPermissionInfo In spis
         Console.WriteLine(spi.Grantee + " has " & spi.PermissionType.ToString() & " permission.")
      Next
      Console.WriteLine("")
   End Sub
End Class

Octroi d'autorisations de serveur en Visual C#

// compile with: /r:Microsoft.SqlServer.Smo.dll /r:Microsoft.SqlServer.ConnectionInfo.dll 
// /r:Microsoft.SqlServer.Management.Sdk.Sfc.dll /r:Microsoft.SqlServer.SqlEnum.dll
using System;
using Microsoft.SqlServer.Management.Smo;

public class A {
   public static void Main() {
      Server svr = new Server();

      // Creating the logins (Grantee)
      String vGrantee = "Grantee1";
      Login login = new Login(svr, vGrantee);
      login.LoginType = LoginType.SqlLogin;
      login.Create("password@1");

      String vGrantee2 = "Grantee2";
      Login login2 = new Login(svr, vGrantee2);
      login2.LoginType = LoginType.SqlLogin;
      login2.Create("password@2");

      // Define a ServerPermissionSet that contains permission to Create Endpoint and Alter Any Endpoint. 
      ServerPermissionSet sps = new ServerPermissionSet(ServerPermission.CreateEndpoint);
      sps.Add(ServerPermission.AlterAnyEndpoint);

      // Grant Create Endpoint and Alter Any Endpoint permissions to Grantee
      svr.Grant(sps, vGrantee);
      svr.Grant(sps, vGrantee2);

      // Enumerate and display the server permissions in the set for the grantee specified in the vGrantee string variable. 
      ServerPermissionInfo[] spis = svr.EnumServerPermissions(vGrantee, sps); //enumerates all server permissions for the Grantee from the specified permission set

      Console.WriteLine("===========Before revoke==================");
      foreach (ServerPermissionInfo spi in spis) {
         Console.WriteLine(spi.Grantee + " has " + spi.PermissionType.ToString() + " permission.");
      }
      Console.WriteLine(" ");

      // Revoke the create endpoint permission from the grantee. 
      svr.Revoke(new ServerPermissionSet(ServerPermission.CreateEndpoint), vGrantee);

      // Enumerate and display the server permissions in the set for the grantee specified in the vGrantee string variable. 
      spis = svr.EnumServerPermissions(vGrantee, sps);

      Console.WriteLine("=========After revoke================");
      foreach (ServerPermissionInfo spi in spis) {
         Console.WriteLine(spi.Grantee + " has " + spi.PermissionType.ToString() + " permission.");
      }
      Console.WriteLine(" ");

      // Grant the Create Server Role permission to the grantee. 
      svr.Grant(new ServerPermissionSet(ServerPermission.ViewAnyDatabase), vGrantee);
      // Enumerate and display the server permissions for the grantee specified in the vGrantee string variable. 

      // enumerates all server permissions for the Grantee
      spis = svr.EnumServerPermissions(vGrantee); 

      Console.WriteLine("=========After grant===============");

      foreach (ServerPermissionInfo spi in spis) {
         Console.WriteLine(spi.Grantee + " has " + spi.PermissionType.ToString() + " permission.");
      }
      Console.WriteLine("");

      // Enumerate and display the server permissions in the set for all logins. 
      spis = svr.EnumServerPermissions(sps); //enumerates all server permissions in the set for all logins

      Console.WriteLine("=========After grant===============");

      foreach (ServerPermissionInfo spi in spis) {
         Console.WriteLine(spi.Grantee + " has " + spi.PermissionType.ToString() + " permission.");
      }
      Console.WriteLine("");
   }
}

Octroi d'autorisations de serveur dans PowerShell

# Set the path context to the local, default instance of SQL Server.
CD \sql\localhost\
$srv = get-item default

#The subject login:
# \"Place Login Name here - has permission to Create Endpoints\"
$vGrantee = "LoginName"

#This sample assumes that the grantee already has permission to Create Endpoints. 

$sps  =  New-Object -TypeName Microsoft.SqlServer.Management.SMO.ServerPermissionSet

$sps.CreateEndpoint = $true
$sps.AlterAnyEndpoint = $true

#This sample assumes that the grantee already has permission to Create Endpoints. 

#Enumerate and display the server permissions in the set for the grantee specified
# in the vGrantee string variable.
$spis = $srv.EnumServerPermissions($vGrantee)

"=================Before revoke==========================="
foreach ( $spi in $spis)
{
    $spi.Grantee + " has " + $spi.PermissionType + " permission."
}
""
#remove perission to create an endpoint
$sps.CreateEndpoint = $false
$srv.Revoke($sps, $vGrantee)

#Enumerate and display the server permissions in the set for the grantee specified
# in the vGrantee string variable.
$spis = $srv.EnumServerPermissions($vGrantee)

"=================After revoke==========================="
foreach ( $spi in $spis)
{
    $spi.Grantee + " has " + $spi.PermissionType + " permission."
}
""
#Grant the revoked permissions back
$sps.CreateEndpoint = $true
$sps.AlterAnyEndpoint = $true
$srv.Grant($sps, $vGrantee)

#Enumerate and display the server permissions in the set for the grantee specified
# in the vGrantee string variable.
$spis = $srv.EnumServerPermissions($vGrantee)

"=================After grant==========================="
foreach ( $spi in $spis)
{
    $spi.Grantee + " has " + $spi.PermissionType + " permission."
}
}

Voir aussi

Concepts

Hiérarchie des autorisations (moteur de base de données)