/// <summary>
/// Crappy method to initialize the session. I don't know what many of these things do, sincerely.
/// </summary>
private Session InitializeSession(Uri url)
{
var certificateValidator = new CertificateValidator();
certificateValidator.CertificateValidation += (sender, eventArgs) =>
{
if (ServiceResult.IsGood(eventArgs.Error))
{
eventArgs.Accept = true;
}
else if ((eventArgs.Error.StatusCode.Code == StatusCodes.BadCertificateUntrusted) && _options.AutoAcceptUntrustedCertificates)
{
eventArgs.Accept = true;
}
else
{
throw new OpcException(string.Format("Failed to validate certificate with error code {0}: {1}", eventArgs.Error.Code, eventArgs.Error.AdditionalInfo), eventArgs.Error.StatusCode);
}
};
// Build the application configuration
var appInstance = new ApplicationInstance
{
ApplicationType = ApplicationType.Client,
ConfigSectionName = _options.ConfigSectionName,
ApplicationConfiguration = new ApplicationConfiguration
{
ApplicationUri = url.ToString(),
ApplicationName = _options.ApplicationName,
ApplicationType = ApplicationType.Client,
CertificateValidator = certificateValidator,
ServerConfiguration = new ServerConfiguration
{
MaxSubscriptionCount = _options.MaxSubscriptionCount,
MaxMessageQueueSize = _options.MaxMessageQueueSize,
MaxNotificationQueueSize = _options.MaxNotificationQueueSize,
MaxPublishRequestCount = _options.MaxPublishRequestCount
},
SecurityConfiguration = new SecurityConfiguration
{
AutoAcceptUntrustedCertificates = _options.AutoAcceptUntrustedCertificates
},
TransportQuotas = new TransportQuotas
{
OperationTimeout = 600000,
MaxStringLength = 1048576,
MaxByteStringLength = 1048576,
MaxArrayLength = 65535,
MaxMessageSize = 4194304,
MaxBufferSize = 65535,
ChannelLifetime = 600000,
SecurityTokenLifetime = 3600000
},
ClientConfiguration = new ClientConfiguration
{
DefaultSessionTimeout = 60000,
MinSubscriptionLifetime = 10000
},
DisableHiResClock = true
}
};
// Assign a application certificate (when specified)
if (_options.ApplicationCertificate != null)
{
appInstance.ApplicationConfiguration.SecurityConfiguration.ApplicationCertificate = new CertificateIdentifier(_options.ApplicationCertificate);
}
// Find the endpoint to be used
var endpoints = ClientUtils.SelectEndpoint(url, _options.UseMessageSecurity);
// Create the OPC session:
var session = Session.Create(
configuration: appInstance.ApplicationConfiguration,
endpoint: new ConfiguredEndpoint(
collection: null,
description: endpoints,
configuration: EndpointConfiguration.Create(applicationConfiguration: appInstance.ApplicationConfiguration)),
updateBeforeConnect: false,
checkDomain: false,
sessionName: _options.SessionName,
sessionTimeout: _options.SessionTimeout,
identity: GetIdentity(url),
preferredLocales: new string[] { });
return(session);
}