protected override async Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
var accessToken = await _httpConnection.GetAccessTokenAsync();
if (!string.IsNullOrEmpty(accessToken))
{
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
}
return(await base.SendAsync(request, cancellationToken));
}
protected override async Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
var isNegotiate = false;
if (string.IsNullOrEmpty(_accessToken) ||
// Negotiate redirects likely will have a new access token so let's always grab a (potentially) new access token on negotiate
#if NET5_0_OR_GREATER
request.Options.TryGetValue(new HttpRequestOptionsKey <bool>("IsNegotiate"), out var value) && value == true
#else
request.Properties.TryGetValue("IsNegotiate", out var value) && value is true
#endif
)
{
isNegotiate = true;
_accessToken = await _httpConnection.GetAccessTokenAsync().ConfigureAwait(false);
}
if (!string.IsNullOrEmpty(_accessToken))
{
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", _accessToken);
}
var result = await base.SendAsync(request, cancellationToken).ConfigureAwait(false);
// retry once with a new token on auth failure
if (!isNegotiate && result.StatusCode is HttpStatusCode.Unauthorized)
{
HttpConnection.Log.RetryAccessToken(_httpConnection._logger, result.StatusCode);
result.Dispose();
_accessToken = await _httpConnection.GetAccessTokenAsync().ConfigureAwait(false);
if (!string.IsNullOrEmpty(_accessToken))
{
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", _accessToken);
}
// Retrying the request relies on any HttpContent being non-disposable.
// Currently this is true, the only HttpContent we send is type ReadOnlySequenceContent which is used by SSE and LongPolling for sending an already buffered byte[]
result = await base.SendAsync(request, cancellationToken).ConfigureAwait(false);
}
return(result);
}
