SecurityCallContext Class

Definition

Namespace:

System.EnterpriseServices

Assembly:

System.EnterpriseServices.dll

Describes the chain of callers leading up to the current method call.

public ref class SecurityCallContext sealed

public sealed class SecurityCallContext

type SecurityCallContext = class

Public NotInheritable Class SecurityCallContext

Inheritance

Object

SecurityCallContext

Examples

The following code example demonstrates the use of the SecurityCallContext class to interrogate the security context of calls to the methods of a ServicedComponent class.

// Accept a constructor string.

[ConstructionEnabled]
public ref class EmployeeInformation: public ServicedComponent
{
private:

   // The employee's user name and salary.
   String^ accountName;
   double salary;

public:

   // Get the employee's name. All users can call this method.
   String^ GetName()
   {
      return (accountName);
   }

   // Set the employee's salary. Only managers can do this.
   void SetSalary( double ammount )
   {
      if ( SecurityCallContext::CurrentCall->IsCallerInRole( "Manager" ) )
      {
         salary = ammount;
      }
      else
      {
         throw gcnew UnauthorizedAccessException;
      }
   }

   // Get the employee's salary. Only the employee and managers can do this.
   double GetSalary()
   {
      if ( SecurityCallContext::CurrentCall->DirectCaller->AccountName == accountName || SecurityCallContext::CurrentCall->IsCallerInRole( "Manager" ) )
      {
         return (salary);
      }
      else
      {
         throw gcnew UnauthorizedAccessException;
      }
   }

protected:
   // Use the constructor string.
   // This method is called when the object is instantiated.
   virtual void Construct( String^ constructorString ) override
   {
      accountName = constructorString;
   }
};

// Accept a constructor string.
[ConstructionEnabled]

public class EmployeeInformation : ServicedComponent
{

    // The employee's user name and salary.
    private string accountName;
    private double salary = 0;

    // Get the employee's name. All users can call this method.
    public string GetName ()
    {
      return(accountName);
    }

    // Set the employee's salary. Only managers can do this.
    public void SetSalary (double ammount)
    {
        if (SecurityCallContext.CurrentCall.IsCallerInRole("Manager"))
        {
            salary = ammount;
        }
        else
        {
            throw new UnauthorizedAccessException();
        }
    }

    // Get the employee's salary. Only the employee and managers can do this.
    public double GetSalary ()
    {
        if ( SecurityCallContext.CurrentCall.DirectCaller.AccountName == accountName ||
             SecurityCallContext.CurrentCall.IsCallerInRole("Manager") )
        {
            return(salary);
        }
        else
        {
          throw new UnauthorizedAccessException();
        }
    }

    // Use the constructor string.
    // This method is called when the object is instantiated.
    protected override void Construct (string constructorString)
    {
        accountName = constructorString;
    }
}

' Accept a constructor string.
<ConstructionEnabled()>  _
Public Class EmployeeInformation
    
    Inherits ServicedComponent
    
    ' The employee's user name and salary.
    Private accountName As String
    Private salary As Double = 0
    
    ' Get the employee's name. All users can call this method.
    Public Function GetName() As String 
        Return accountName
    
    End Function 'GetName
    
    ' Set the employee's salary. Only managers can do this.
    Public Sub SetSalary(ByVal ammount As Double) 
        If SecurityCallContext.CurrentCall.IsCallerInRole("Manager") Then
            salary = ammount
        Else
            Throw New UnauthorizedAccessException()
        End If
    
    End Sub
    
    ' Get the employee's salary. Only the employee and managers can do this.
    Public Function GetSalary() As Double 
        If SecurityCallContext.CurrentCall.DirectCaller.AccountName = accountName OrElse SecurityCallContext.CurrentCall.IsCallerInRole("Manager") Then
            Return salary
        Else
            Throw New UnauthorizedAccessException()
        End If
    
    End Function 'GetSalary
    
    ' Use the constructor string.
    ' This method is called when the object is instantiated.
    Protected Overrides Sub Construct(ByVal constructorString As String) 
        accountName = constructorString
    
    End Sub

End Class

Properties

Callers	Gets a SecurityCallers object that describes the caller.
CurrentCall	Gets a SecurityCallContext object that describes the security call context.
DirectCaller	Gets a SecurityIdentity object that describes the direct caller of this method.
IsSecurityEnabled	Determines whether security checks are enabled in the current context.
MinAuthenticationLevel	Gets the MinAuthenticationLevel value from the ISecurityCallContext collection in COM+.
NumCallers	Gets the NumCallers value from the ISecurityCallContext collection in COM+.
OriginalCaller	Gets a SecurityIdentity that describes the original caller.

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
IsCallerInRole(String)	Verifies that the direct caller is a member of the specified role.
IsUserInRole(String, String)	Verifies that the specified user is in the specified role.
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)