public override async Task <GetAuthenticationCredentialsResponse> HandleRequestAsync(GetAuthenticationCredentialsRequest request, CancellationToken cancellationToken)
{
var forceCanShowDialogTo = EnvUtil.ForceCanShowDialogTo();
var canShowDialog = request.CanShowDialog;
if (forceCanShowDialogTo.HasValue)
{
Logger.Verbose(string.Format(Resources.ForcingCanShowDialogFromTo, request.CanShowDialog, forceCanShowDialogTo.Value));
canShowDialog = forceCanShowDialogTo.Value;
}
Uri authority = await authUtil.GetAadAuthorityUriAsync(request.Uri, cancellationToken);
Verbose(string.Format(Resources.AdalUsingAuthority, authority));
IEnumerable <IBearerTokenProvider> bearerTokenProviders = bearerTokenProvidersFactory.Get(authority.ToString());
cancellationToken.ThrowIfCancellationRequested();
// Try each bearer token provider (e.g. ADAL cache, ADAL WIA, ADAL UI, ADAL DeviceCode) in order.
// Only consider it successful if the bearer token can be exchanged for an Azure DevOps token.
foreach (IBearerTokenProvider bearerTokenProvider in bearerTokenProviders)
{
bool shouldRun = bearerTokenProvider.ShouldRun(request.IsRetry, request.IsNonInteractive, canShowDialog);
if (!shouldRun)
{
Verbose(string.Format(Resources.NotRunningBearerTokenProvider, bearerTokenProvider.Name));
continue;
}
Verbose(string.Format(Resources.AttemptingToAcquireBearerTokenUsingProvider, bearerTokenProvider.Name));
string bearerToken = null;
try
{
bearerToken = await bearerTokenProvider.GetTokenAsync(request.Uri, cancellationToken);
}
catch (Exception ex)
{
Verbose(string.Format(Resources.BearerTokenProviderException, bearerTokenProvider.Name, ex));
continue;
}
if (string.IsNullOrWhiteSpace(bearerToken))
{
Verbose(string.Format(Resources.BearerTokenProviderReturnedNull, bearerTokenProvider.Name));
continue;
}
Info(string.Format(Resources.AcquireBearerTokenSuccess, bearerTokenProvider.Name));
Info(Resources.ExchangingBearerTokenForSessionToken);
try
{
string sessionToken = await vstsSessionTokenProvider.GetAzureDevOpsSessionTokenFromBearerToken(request, bearerToken, bearerTokenProvider.Interactive, cancellationToken);
if (!string.IsNullOrWhiteSpace(sessionToken))
{
Verbose(string.Format(Resources.VSTSSessionTokenCreated, request.Uri.AbsoluteUri));
return(new GetAuthenticationCredentialsResponse(
Username,
sessionToken,
message: null,
authenticationTypes: new List <string>()
{
"Basic"
},
responseCode: MessageResponseCode.Success));
}
}
catch (Exception e)
{
Verbose(string.Format(Resources.VSTSCreateSessionException, request.Uri.AbsoluteUri, e.Message, e.StackTrace));
}
}
Verbose(string.Format(Resources.VSTSCredentialsNotFound, request.Uri.AbsoluteUri));
return(null);
}