protected override async Task <HttpResponseMessage> SendAsync(HttpRequestMessage request,
CancellationToken cancellationToken)
{
if (request.AuthHeadersInvalid())
{
SessionExpired?.Invoke(this, EventArgs.Empty);
return(FailResponse.UnauthorizedResponse());
}
Task <RefreshTokenStatus> refreshTask = _refreshTask;
if (!refreshTask.IsCompleted)
{
RefreshTokenStatus refreshSucceeded = await refreshTask;
return(await ResendAsync(request, cancellationToken, refreshSucceeded));
}
HttpResponseMessage response = await base.SendAsync(request, cancellationToken);
if (response.StatusCode == HttpStatusCode.Unauthorized && !_userStorage.User().Empty())
{
try
{
RefreshTokenStatus refreshSucceeded = await Refresh(refreshTask, cancellationToken);
return(await ResendAsync(request, cancellationToken, refreshSucceeded));
}
finally
{
response.Dispose();
}
}
return(response);
}
private async Task <HttpResponseMessage> ResendAsync(HttpRequestMessage request,
CancellationToken cancellationToken,
RefreshTokenStatus refreshTokenStatus)
{
switch (refreshTokenStatus)
{
case RefreshTokenStatus.Success:
PrepareRequest(request);
return(await base.SendAsync(request, cancellationToken));
case RefreshTokenStatus.Unauthorized:
SessionExpired?.Invoke(this, EventArgs.Empty);
return(FailResponse.UnauthorizedResponse());
default:
return(FailResponse.UnauthorizedResponse());
}
}
