protected internal void ValidateMqttSettings()

in dotnet/src/Azure.Iot.Operations.Protocol/Connection/MqttConnectionSettings.cs [257:298]

37 lines of code
11 McCabe index (conditional complexity)


        protected internal void ValidateMqttSettings(bool validateOptionalSettings)
        {
            if (string.IsNullOrWhiteSpace(HostName))
            {
                throw new ArgumentException($"{nameof(HostName)} is mandatory.", nameof(HostName));
            }

            if (string.IsNullOrEmpty(ClientId))
            {
                throw new ArgumentException($"{nameof(ClientId)} is mandatory.", nameof(ClientId));
            }

            if (!string.IsNullOrEmpty(SatAuthFile) && (!string.IsNullOrEmpty(PasswordFile)))
            {
                throw new ArgumentException(
                    $"{nameof(SatAuthFile)} cannot be used with {nameof(PasswordFile)}", nameof(SatAuthFile));
            }

            if (validateOptionalSettings)
            {
                if (!string.IsNullOrWhiteSpace(KeyFile) && string.IsNullOrWhiteSpace(CertFile))
                {
                    throw new ArgumentException(
                        $"{nameof(CertFile)} and {nameof(KeyFile)} need to be provided together.",
                        $"{nameof(CertFile)} and {nameof(KeyFile)}");
                }
            }

            if (!string.IsNullOrWhiteSpace(CertFile))
            {
                ClientCertificate = string.IsNullOrWhiteSpace(KeyPasswordFile)
                    ? X509Certificate2.CreateFromPemFile(CertFile, KeyFile)
                    : X509Certificate2.CreateFromEncryptedPemFile(CertFile, KeyPasswordFile, KeyFile);
            }

            if (!string.IsNullOrWhiteSpace(CaFile))
            {
                X509Certificate2Collection chain = [];
                chain.ImportFromPemFile(CaFile);
                TrustChain = chain;
            }
        }