AWSSAML.AWSSAMLUtils.GetSamlAssertion C# (CSharp) Метод

        public string GetSamlAssertion(string identityProvider)
        {
            string samlAssertion = "";
            HttpWebResponse response = getResult(identityProvider);
            string responseStreamData;

            using (StreamReader reader = new StreamReader(response.GetResponseStream()))
            {
                responseStreamData = reader.ReadToEnd();
            }

            Regex reg = new Regex("SAMLResponse\\W+value\\=\\\"([^\\\"]+)\\\"");
            MatchCollection matches = reg.Matches(responseStreamData);
            string last = null;
            foreach (Match m in matches)
            {
                last = m.Groups[1].Value;
                samlAssertion = last;
            }

            return samlAssertion;
        }

        protected override void ProcessRecord()
        {
            try
            {
                AWSSAMLUtils          awsSamlUtils          = new AWSSAMLUtils();
                SessionAWSCredentials awsSessionCredentials = null;

                ICredentials userCredentials = GetUserCredentials(useCurrentCredentials);

                Uri uri = new Uri(identityProviderUrl);
                NetworkCredential networkCredentials = userCredentials.GetCredential(uri, "");
                if (CredentialCache.DefaultCredentials != userCredentials)
                {
                    ImpersonateUser(networkCredentials.UserName, networkCredentials.Password, networkCredentials.Domain);
                }

                string   samlAssertion = awsSamlUtils.GetSamlAssertion(identityProviderUrl);
                string[] awsSamlRoles  = awsSamlUtils.GetAwsSamlRoles(samlAssertion);
                UnImpersonateUser();

                string awsSamlRole = null;
                if (roleIndex < awsSamlRoles.Length)
                {
                    awsSamlRole = awsSamlRoles[roleIndex];
                }
                else if (!string.IsNullOrEmpty(role))
                {
                    awsSamlRole = awsSamlRoles.FirstOrDefault(p => p.Contains(role));
                    if (awsSamlRole == null)
                    {
                        throw new ArgumentException(string.Format("role {0} not found in list of available roles: {1}", role, string.Join(", ", awsSamlRoles)));
                    }
                }
                else
                {
                    awsSamlRole = AskUserForAwsSamlRole(awsSamlRoles);
                }

                awsSessionCredentials = awsSamlUtils.GetSamlRoleCredentails(samlAssertion, awsSamlRole);
                SetPowershellSamlProfile(awsSessionCredentials.GetCredentials());
            }
            catch
            {
                throw;
            }
        }