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AuthenticationManager.Authenticate(String, WebRequest, ICredentials) Method

Definition

Caution

The AuthenticationManager Authenticate and PreAuthenticate methods are not supported and throw PlatformNotSupportedException.

Calls each registered authentication module to find the first module that can respond to the authentication request.

public:
 static System::Net::Authorization ^ Authenticate(System::String ^ challenge, System::Net::WebRequest ^ request, System::Net::ICredentials ^ credentials);
[System.Obsolete("The AuthenticationManager Authenticate and PreAuthenticate methods are not supported and throw PlatformNotSupportedException.", DiagnosticId="SYSLIB0009", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public static System.Net.Authorization? Authenticate (string challenge, System.Net.WebRequest request, System.Net.ICredentials credentials);
public static System.Net.Authorization? Authenticate (string challenge, System.Net.WebRequest request, System.Net.ICredentials credentials);
public static System.Net.Authorization Authenticate (string challenge, System.Net.WebRequest request, System.Net.ICredentials credentials);
[<System.Obsolete("The AuthenticationManager Authenticate and PreAuthenticate methods are not supported and throw PlatformNotSupportedException.", DiagnosticId="SYSLIB0009", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
static member Authenticate : string * System.Net.WebRequest * System.Net.ICredentials -> System.Net.Authorization
static member Authenticate : string * System.Net.WebRequest * System.Net.ICredentials -> System.Net.Authorization
Public Shared Function Authenticate (challenge As String, request As WebRequest, credentials As ICredentials) As Authorization

Parameters

challenge
String

The challenge returned by the Internet resource.

request
WebRequest

The request that initiated the authentication challenge.

credentials
ICredentials

The credentials associated with this request.

Returns

An instance of the Authorization class containing the result of the authorization attempt. If there is no authentication module to respond to the challenge, this method returns null.

Attributes

Exceptions

.NET Core and .NET 5+ only: In all cases.

challenge is null.

-or-

request is null.

-or-

credentials is null.

Remarks

The Authenticate method calls the IAuthenticationModule.Authenticate method on each registered authentication module until one of the module responds with an Authorization instance.

The first Authorization instance returned is used to authenticate the request. If no authentication module can authenticate the request, the Authenticate method returns null.

Authentication modules are called in the order in which they are registered with the AuthenticationManager.

Applies to