Orc.NuGetExplorer.Native.CredentialsPrompter.WriteCredential C# (CSharp) Method

        private bool WriteCredential(string key, string userName, string secret)
        {
            var byteArray = Encoding.Unicode.GetBytes(secret);
            if (byteArray.Length > 512)
            {
                throw Log.ErrorAndCreateException(x => new ArgumentOutOfRangeException("secret", x), "The secret message has exceeded 512 bytes.");
            }

            Log.Debug("Writing credentials with username '{0}' for key '{1}'", userName, key);

            var cred = new CredUi.Credential();
            cred.TargetName = key;
            cred.UserName = userName;
            cred.CredentialBlob = secret;
            cred.CredentialBlobSize = (uint)Encoding.Unicode.GetBytes(secret).Length;
            cred.AttributeCount = 0;
            cred.Attributes = IntPtr.Zero;
            cred.Comment = null;
            cred.TargetAlias = null;
            cred.Type = CredUi.CredTypes.CRED_TYPE_GENERIC;
            cred.Persist = CredUi.IsWindowsVistaOrEarlier ? CredUi.CredPersistance.Session : CredUi.CredPersistance.LocalMachine;

            Log.Debug("Persisting credentials as '{0}'", cred.Persist);

            var ncred = CredUi.NativeCredential.GetNativeCredential(cred);
            var written = CredUi.CredWrite(ref ncred, 0);
            var lastError = Marshal.GetLastWin32Error();
            if (!written)
            {
                throw Log.ErrorAndCreateException(x => new CredentialException(lastError, x), "CredWrite failed with the error code '{0}'", lastError);
            }

            // Note: immediately read it for ORCOMP-229
            var credential = ReadCredential(key, false);
            if (credential == null || string.IsNullOrWhiteSpace(credential.Password))
            {
                var configurationKey = GetPasswordConfigurationKey(key, cred.UserName);
                var encryptionKey = GetEncryptionKey(key, cred.UserName);

                Log.Debug("Failed to write credentials to vault, probably a company policy. Falling back to writing configuration key '{0}'", configurationKey);

                var encryptedPassword = EncryptionHelper.Encrypt(secret, encryptionKey);
                _configurationService.SetRoamingValue(configurationKey, encryptedPassword);
            }

            Log.Debug("Successfully written credentials for key '{0}'", key);

            return true;
        }