/// <summary>
/// Function for loading keys from file
/// </summary>
/// <param name="keyfileJson">The path of key source file.</param>
/// <param name="createIfEmpty">The flag for file creation if it does not exist on provided path.</param>
/// <returns>returns JsonPublicKeySource object.</returns>
/// <exception cref="ArgumentNullException">Thrown when provided path string is null or empty.</exception>
/// <exception cref="ArgumentException">Thrown when key source file does not exist on provided path.</exception>
/// <exception cref="FileEmptyException">Thrown when key source file is empty.</exception>
public static IPublickeySource FromFile(string keyfileJson, bool createIfEmpty = false)
{
//directly load from file
JsonPublicKeySource source = new JsonPublicKeySource();
source.LoadFromFile(keyfileJson, createIfEmpty);
return(source);
}
/// <summary>
/// This method gets called by the runtime. Use this method to add services to the container.
/// </summary>
/// <param name="services">The method expects ServiceCollection reference.</param>
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
services.AddSingleton <IPublickeySource>(serviceProvider =>
JsonPublicKeySource.FromFile(
Path.Combine(Configuration.GetValue <string>("INTERNAL_DIR", "./"), "keyfile.json"))
);
services.AddSingleton <IInfluxClient, InfluxClient>(serviceProvider =>
{
var lpcp = Configuration.GetSection("Influx").Get <LineProtocolConnectionParameters>();
return(new InfluxClient(lpcp));
});
}
/// <summary>
/// Program entry point
/// </summary>
/// <param name="args">Command Line arguments,
/// INTERNAL_DIR: for setting internal dir path.
/// KEYPASS: for password for decryption of SSL Certificate
/// STARTSERVICE: flag for indication of starting WebHost, Added for unit testing Program class, as we dont want to actually invoke host.Run in unit tests
/// validator: to be used with add or remove command line arg for adding into or removing from key source
/// publickey: to be used with add or remove command line arg for adding into or removing from key source
/// add: adding into key source
/// remove: removing into key source
/// </param>
public static void Main(string[] args)
{
// build config
string envName = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
IConfigurationRoot config = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json")
.AddJsonFile($"appsettings.{envName}.json", true)
.AddEnvironmentVariables("TELEMETRY_")
.AddInfluxConfigFromEnvironment()
.AddCommandLine(args)
.Build();
// If we run a key management function we don't go into daemon mode
string keyCommandMode = config.GetValue <string>("keycmd", String.Empty);
if (!String.IsNullOrWhiteSpace(keyCommandMode))
{
var keystore = JsonPublicKeySource.FromFile(
Path.Combine(config.GetValue <string>("INTERNAL_DIR", "./"), "keyfile.json"), true);
var keymgr = new KeyManagement(config, keystore);
keymgr.ProcessKeyCommand(keyCommandMode);
return;
}
//Getting certificate path for SSL
string certificatePath = Path.GetFullPath(Path.Combine(config.GetValue("INTERNAL_DIR", "./"), "telemetry-ingress.pfx"));
//verify if certificate exists on given path
if (!File.Exists(certificatePath))
{
Console.WriteLine($"Error: Unable to read certificate from {certificatePath}. File not found");
return;
}
//get certificate password
string keyPassword = config.GetValue("KEYPASS", String.Empty);
//certificate key password validation
if (String.IsNullOrWhiteSpace(keyPassword))
{
Console.WriteLine($"Error: Certificate password not provided.");
return;
}
// Configure and instantiate Web Host
IWebHost host = new WebHostBuilder()
.UseConfiguration(config)
.UseStartup <Startup>()
.UseKestrel(options =>
{
options.Listen(IPAddress.Any, 5000);
options.Listen(IPAddress.Any, 5010,
listenOptions => { listenOptions.UseHttps(certificatePath, keyPassword); });
})
.Build();
//Added for unit testing Program class, as we dont want to actually invoke host.Run in unit tests
string startSignal = config.GetValue("STARTSERVICE", String.Empty);
if (String.IsNullOrWhiteSpace(startSignal))
{
host.Run();
}
}