Identity Permission Class
Defines the identity permission for the Web site from which the code originates. This class cannot be inherited.
public ref class SiteIdentityPermission sealed : System::Security::CodeAccessPermission
[System.Runtime.InteropServices.ComVisible(true)] [System.Serializable] public sealed class SiteIdentityPermission : System.Security.CodeAccessPermission
type SiteIdentityPermission = class inherit CodeAccessPermission
Public NotInheritable Class SiteIdentityPermission Inherits CodeAccessPermission
Using this class, it is possible to ensure that callers are from a specific Web site. Site identity is only defined for code from URLs with the protocols of HTTP, HTTPS, and FTP. A site is the string between the "//" after the protocol of a URL and the following "/", if present, for example,
www.fourthcoffee.com in the URL
http://www.fourthcoffee.com/process/grind.htm. This excludes port numbers. If a given URL is
http://www.fourthcoffee.com:8000/, the site is
Sites can be matched exactly, or by a wildcard ("*") prefix at the dot delimiter. For example, the site name string
fourthcoffee.com as well as
www.fourthcoffee.com. Without a wildcard, the site name must be a precise match. The site name string * will match any site, but will not match code that has no site evidence.
Starting with the .NET Framework 4, identity permissions are not used.
In the .NET Framework versions 1.0 and 1.1, demands on the identity permissions are effective, even when the calling assembly is fully trusted. That is, although the calling assembly has full trust, a demand for an identity permission fails if the assembly does not meet the demanded criteria. Starting with the .NET Framework version 2.0, demands for identity permissions are ineffective if the calling assembly has full trust. This assures consistency for all permissions, eliminating the treatment of identity permissions as a special case.
In versions of the .NET Framework before the .NET Framework 4, you could use the CodeAccessPermission.Deny method to prevent inadvertent access to system resources by trusted code. Deny is now obsolete, and access to resources is now determined solely by the granted permission set for an assembly. To limit access to files, you must run partially trusted code in a sandbox and assign it permissions only to resources that the code is allowed to access. For information about running an application in a sandbox, see How to: Run Partially Trusted Code in a Sandbox.
In the .NET Framework versions 1.0 and 1.1, identity permissions cannot have an Unrestricted permission state value. Starting with the .NET Framework version 2.0, identity permissions can have any permission state value. This means that in 2.0 and later versions, identity permissions have the same behavior as permissions that implement the IUnrestrictedPermission interface.
Initializes a new instance of the SiteIdentityPermission class to represent the specified site identity.
Gets or sets the current site.
Declares that the calling code can access the resource protected by a permission demand through the code that calls this method, even if callers higher in the stack have not been granted permission to access the resource. Using Assert() can create security issues.(Inherited from CodeAccessPermission)
Creates and returns an identical copy of the current permission.
Forces a SecurityException at run time if all callers higher in the call stack have not been granted the permission specified by the current instance.(Inherited from CodeAccessPermission)
Prevents callers higher in the call stack from using the code that calls this method to access the resource specified by the current instance.(Inherited from CodeAccessPermission)
Reconstructs a permission with a specified state from an XML encoding.
Gets a hash code for the CodeAccessPermission object that is suitable for use in hashing algorithms and data structures such as a hash table.(Inherited from CodeAccessPermission)
Gets the Type of the current instance.(Inherited from Object)
Creates and returns a permission that is the intersection of the current permission and the specified permission.
Determines whether the current permission is a subset of the specified permission.
Creates a shallow copy of the current Object.(Inherited from Object)
Prevents callers higher in the call stack from using the code that calls this method to access all resources except for the resource specified by the current instance.(Inherited from CodeAccessPermission)
Creates and returns a string representation of the current permission object.(Inherited from CodeAccessPermission)
Creates an XML encoding of the permission and its current state.
Creates a permission that is the union of the current permission and the specified permission.
Explicit Interface Implementations
|IPermission.Demand()||(Inherited from CodeAccessPermission)|
|IStackWalk.Assert()||(Inherited from CodeAccessPermission)|
|IStackWalk.Demand()||(Inherited from CodeAccessPermission)|
|IStackWalk.Deny()||(Inherited from CodeAccessPermission)|
|IStackWalk.PermitOnly()||(Inherited from CodeAccessPermission)|