public async Task <EnterpriseLoginMethods> ProbeLoginMethods(Uri enterpriseBaseUrl)
{
try
{
// It's important that we don't use our cached credentials on this connection, as they
// may be wrong - we're trying to log in after all.
var hostAddress = HostAddress.Create(enterpriseBaseUrl);
var connection = new Octokit.Connection(program.ProductHeader, hostAddress.ApiUri);
var meta = await GetMetadata(connection).ConfigureAwait(false);
var result = EnterpriseLoginMethods.Token;
if (meta.VerifiablePasswordAuthentication != false)
{
result |= EnterpriseLoginMethods.UsernameAndPassword;
}
if (meta.InstalledVersion != null)
{
var version = new Version(meta.InstalledVersion);
if (version >= MinimumOAuthVersion)
{
result |= EnterpriseLoginMethods.OAuth;
}
}
return(result);
}
catch
{
return(EnterpriseLoginMethods.Token | EnterpriseLoginMethods.UsernameAndPassword);
}
}