private static async Task HandleTokenRefreshFailure(HttpResponseMessage response)
{
// OneDrive specific logic: If the refresh token is expired, the server will return a 400 Bad Request
// response with json content saying that the user must sign in.
if (response.StatusCode == HttpStatusCode.BadRequest)
{
WindowsLiveError errorData = await response.Content.TryReadAsJsonAsync <WindowsLiveError>().ConfigureAwait(false);
if (errorData != null && errorData.Error == "invalid_grant")
{
throw new OneDriveTokenRefreshFailedException("The refresh token is expired.", errorData);
}
}
// Dev note: Try to understand all of the refresh token failures. Any expected failures should be
// throw as OneDriveTokenRefreshFailedException. This is here as a catch-all.
var exception = new OneDriveHttpException("Failed to refresh token.", response.StatusCode);
if (response.Headers.Contains("WwwAuthenticate"))
{
exception.Data["HttpAuthenticationHeader"] = response.Headers.WwwAuthenticate;
}
throw exception;
}
public OneDriveTokenRefreshFailedException(string message, WindowsLiveError errorData)
: base(message)
{
this.ErrorData = errorData;
}