/// <summary>
/// Initialize the class and configurations
/// </summary>
/// <param name="serviceConfigs"></param>
private void Initialize(IEnumerable <IServiceConfig> serviceConfigs)
{
if (serviceConfigs != null)
{
_vpnConfig = serviceConfigs as List <OpenVPNConfig>;
}
// Check if configurations are passed.
if (_vpnConfig == null || !_vpnConfig.Any())
{
throw new InvalidOperationException("OpenVPN init: config list was null.");
}
// Get the default network interace.
var defaultNetworkInterface = _firewall.GetDefaultInterface();
// Context-aware dictionary of OpenVPN configs and their rendered forms.
var configDictionary = new Dictionary <OpenVPNConfig, string>();
foreach (var vpnConfig in _vpnConfig)
{
var renderedConfig = vpnConfig.GetStringConfig().Result;
configDictionary.Add(vpnConfig, renderedConfig);
}
// Iterate through each pending configuration.
foreach (var configHolder in configDictionary)
{
// Get the properly formatted path of where the configuration will be stored..
var onDiskName = Path.Combine(Path.GetTempPath(), Guid.NewGuid() + ".ovpn");
// Write the configuration to the disk.
using (var writer = new StreamWriter(onDiskName))
writer.Write(configHolder.Value);
// Keep track of the configuration path.
_configsOnDisk.Add(onDiskName);
// Log to the console.
_logger.LogDebug($"OpenVPN init: wrote config to {onDiskName}, attempting to start 3rd party daemon.");
// At this stage, we have the configs ready and on disk. Let us simply bootstrap the processes.
StartDaemon(onDiskName);
// Create MASQ rules for each config.
_firewall.Rules.Masquerade(configHolder.Key.Listener.Network, defaultNetworkInterface.Name);
}
}
