FileAuthorizationModule.CheckFileAccessForUser Method
Assembly: System.Web (in system.web.dll)
'Declaration Public Shared Function CheckFileAccessForUser ( _ virtualPath As String, _ token As IntPtr, _ verb As String _ ) As Boolean 'Usage Dim virtualPath As String Dim token As IntPtr Dim verb As String Dim returnValue As Boolean returnValue = FileAuthorizationModule.CheckFileAccessForUser(virtualPath, token, verb)
public static boolean CheckFileAccessForUser ( String virtualPath, IntPtr token, String verb )
public static function CheckFileAccessForUser ( virtualPath : String, token : IntPtr, verb : String ) : boolean
Not applicable.
Parameters
- virtualPath
The virtual path to the file.
- token
A Windows access token representing the user.
- verb
The HTTP verb used to make the request.
Return Value
true if the current Windows user represented by token has access to the file using the specified HTTP verb or if the FileAuthorizationModule module is not defined in the application's configuration file; otherwise, false.| Exception type | Condition |
|---|---|
|
virtualPath is a null reference (Nothing in Visual Basic). -or- token is Zero. -or- verb is a null reference (Nothing in Visual Basic). | |
|
virtualPath is not in the application directory structure of the Web application. | |
|
The file specified by virtualPath does not exist. |
The CheckFileAccessForUser method checks to see whether the current user, represented by a Windows access token, is granted access to the requested file in the file-system access-control lists (ACLs). The virtual path is mapped to the physical file-system path before the check is made.
If the HTTP verb used to make the request is GET, POST, or HEAD, the CheckFileAccessForUser method checks for read access to the file. If any other verb is used, the CheckFileAccessForUser method checks for read/write permission to the file.
Security Note If the FileAuthorizationModule module is not defined in the httpModules configuration section for the application, the FileAuthorizationModule module always returns true.
- SecurityPermission for accessing the requested file. Demand value: Demand. Permission value: Unrestricted.