public ExternalConnectionString Clone()
{
return(new ExternalConnectionString()
{
MacaroonFilePath = MacaroonFilePath,
CertificateThumbprint = CertificateThumbprint,
Macaroon = Macaroon,
MacaroonDirectoryPath = MacaroonDirectoryPath,
Server = Server,
APIToken = APIToken,
CookieFilePath = CookieFilePath,
AccessKey = AccessKey,
Macaroons = Macaroons?.Clone()
});
}
/// <summary>
/// Return a connectionString which does not depends on external resources or information like relative path or file path
/// </summary>
/// <returns></returns>
public async Task <ExternalConnectionString> Expand(Uri absoluteUrlBase, ExternalServiceTypes serviceType)
{
var connectionString = this.Clone();
// Transform relative URI into absolute URI
var serviceUri = connectionString.Server.IsAbsoluteUri ? connectionString.Server : ToRelative(absoluteUrlBase, connectionString.Server.ToString());
if (!serviceUri.Scheme.Equals("https", StringComparison.OrdinalIgnoreCase) &&
!serviceUri.DnsSafeHost.EndsWith(".onion", StringComparison.OrdinalIgnoreCase))
{
throw new System.Security.SecurityException($"Insecure transport protocol to access this service, please use HTTPS or TOR");
}
connectionString.Server = serviceUri;
if (serviceType == ExternalServiceTypes.LNDGRPC || serviceType == ExternalServiceTypes.LNDRest)
{
// Read the MacaroonDirectory
if (connectionString.MacaroonDirectoryPath != null)
{
try
{
connectionString.Macaroons = await Macaroons.GetFromDirectoryAsync(connectionString.MacaroonDirectoryPath);
connectionString.MacaroonDirectoryPath = null;
}
catch (Exception ex)
{
throw new System.IO.DirectoryNotFoundException("Macaroon directory path not found", ex);
}
}
// Read the MacaroonFilePath
if (connectionString.MacaroonFilePath != null)
{
try
{
connectionString.Macaroon = await System.IO.File.ReadAllBytesAsync(connectionString.MacaroonFilePath);
connectionString.MacaroonFilePath = null;
}
catch (Exception ex)
{
throw new System.IO.FileNotFoundException("Macaroon not found", ex);
}
}
}
if (serviceType == ExternalServiceTypes.Charge || serviceType == ExternalServiceTypes.RTL || serviceType == ExternalServiceTypes.Spark)
{
// Read access key from cookie file
if (connectionString.CookieFilePath != null)
{
string cookieFileContent = null;
bool isFake = false;
try
{
cookieFileContent = await System.IO.File.ReadAllTextAsync(connectionString.CookieFilePath);
isFake = connectionString.CookieFilePath == "fake";
connectionString.CookieFilePath = null;
}
catch (Exception ex)
{
throw new System.IO.FileNotFoundException("Cookie file path not found", ex);
}
if (serviceType == ExternalServiceTypes.RTL)
{
connectionString.AccessKey = cookieFileContent;
}
else if (serviceType == ExternalServiceTypes.Spark)
{
var cookie = (isFake ? "fake:fake:fake" // Hacks for testing
: cookieFileContent).Split(':');
if (cookie.Length >= 3)
{
connectionString.AccessKey = cookie[2];
}
else
{
throw new FormatException("Invalid cookiefile format");
}
}
else if (serviceType == ExternalServiceTypes.Charge)
{
connectionString.APIToken = isFake ? "fake" : cookieFileContent;
}
}
}
return(connectionString);
}
