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SiteIdentityPermissionAttribute Class

Allows security actions for SiteIdentityPermission to be applied to code using declarative security. This class cannot be inherited.

Namespace: System.Security.Permissions
Assembly: mscorlib (in mscorlib.dll)

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
[AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple=true, Inherited=false)] 
public sealed class SiteIdentityPermissionAttribute : CodeAccessSecurityAttribute
/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
/** @attribute AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple=true, Inherited=false) */ 
public final class SiteIdentityPermissionAttribute extends CodeAccessSecurityAttribute
SerializableAttribute 
ComVisibleAttribute(true) 
AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple=true, Inherited=false) 
public final class SiteIdentityPermissionAttribute extends CodeAccessSecurityAttribute

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 www.fourthcoffee.com, not www.fourthcoffee.com:8000.

Sites can be matched exactly, or by a wildcard ("*") prefix at the dot delimiter. For example, the site name string *.fourthcoffee.com matches 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.

The scope of the declaration that is allowed depends on the SecurityAction that is used.

The security information declared by a security attribute is stored in the metadata of the attribute target and is accessed by the system at run time. Security attributes are used only for declarative security. For imperative security, use the corresponding permission class.

The following example of a declarative attribute shows the correct way to request SiteIdentityPermission and states that you must have at least this permission to run your code. Code will only execute if it is run from the Web site example.microsoft.com.

[assembly:SiteIdentityPermissionAttribute(SecurityAction.RequestMinimum,
Site="example.microsoft.com")]
//In C#, you must specify that you are using the assembly scope when
// making a request.

/** @assembly SiteIdentityPermissionAttribute(SecurityAction.RequestMinimum,
    Site = "example.microsoft.com")
 */
// In VJ#, you must specify that you are using the assembly scope when
// making a request.

The following example shows how to demand that the calling code has SiteIdentityPermission at link time. Code will only execute if it is run from the Web site example.microsoft.com.

[SiteIdentityPermissionAttribute(SecurityAction.Demand,
Site="example.microsoft.com")]

/** @attribute SiteIdentityPermissionAttribute(SecurityAction.Demand, 
    Site = "example.microsoft.com")
 */

System.Object
   System.Attribute
     System.Security.Permissions.SecurityAttribute
       System.Security.Permissions.CodeAccessSecurityAttribute
        System.Security.Permissions.SiteIdentityPermissionAttribute

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

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