public IAuthorizationToken GetAuthorizationToken(IAuthorizationTokenIdentifier authorizationTokenIdentifier)
{
if (authorizationTokenIdentifier.Key.IsNullOrEmpty())
{
throw new ArgumentNullException(nameof(AuthorizationTokenIdentifier.Key));
}
if (SsoSettings.ApiKey.IsNullOrEmpty())
{
throw new ArgumentNullException(nameof(SsoSettings.ApiKey));
}
using (var wc = new WebClient())
{
wc.Headers[HttpRequestHeader.Authorization] = "Bearer " + SsoSettings.ApiKey;
wc.Headers[HttpRequestHeader.Accept] = "application/json";
if (_proxyUri != null)
{
wc.Proxy = new WebProxy(_proxyUri);
}
// don't bother to fiddle with WebClient's timeout as it defaults to 100 sec
try
{
var serializedToken = wc.DownloadString(_authorizationTokenServiceUri);
return(AuthorizationToken.Deserialize(serializedToken));
}
catch (WebException exception) when(exception.Status == WebExceptionStatus.ProtocolError)
{
using (var wr = exception.Response)
using (var rs = wr.GetResponseStream())
{
var error = Error.Deserialize(rs);
throw new HttpRequestException($"Failed to get token from '{wr.ResponseUri}'.\r\n{exception.Message}\r\n{error.Message}.");
}
}
}
}