/// <summary>
/// Enables the NAME self host server.
/// </summary>
/// <param name="nameConfigBuilder">The name configuration builder.</param>
/// <returns>
/// Returns an <see cref="IDisposable" /> proxy object containing the Parsed Dependencies and a way to stop the server.
/// </returns>
/// <exception cref="NAMEException">Error parsing the dependencies file.</exception>
/// <exception cref="DependenciesCheckException">Happens when <see cref="NAMEBaseConfiguration.ThrowOnDependenciesFail" /> is set to true and dependencies check fail.</exception>
public static SelfHostResult EnableName(Action <NAMEHttpListenerConfiguration> nameConfigBuilder)
{
var nameConfiguration = new NAMEHttpListenerConfiguration();
nameConfigBuilder?.Invoke(nameConfiguration);
var pathMapper = new StaticFilePathMapper();
var server = new HttpListenerServer(nameConfiguration, pathMapper);
var parsedDependencies = SelfHostInitializer.Initialize(server, pathMapper, nameConfiguration);
return(new SelfHostResult(parsedDependencies, server));
}
private async Task GetManifest(HttpListenerContext context, NAMEHttpListenerConfiguration configuration)
{
context.Response.ContentType = "application/json";
int currentHopCount = 0;
var hopCountHeaders = context.Request.Headers.GetValues(Constants.HOP_COUNT_HEADER_NAME);
if (hopCountHeaders?.Length > 0)
{
if (!int.TryParse(hopCountHeaders.First(), out currentHopCount))
{
currentHopCount = 0;
LogWarning($"The received hop count header it not a valid int value ({hopCountHeaders.First()}), defaulting to 0.", this.nameConfiguration.LogHealthCheckToConsole);
}
}
currentHopCount++;
var nameContext = new NAMEContext()
{
ServiceDependencyCurrentNumberOfHops = currentHopCount
};
var dependencies = DependenciesReader.ReadDependencies(configuration.DependenciesFilePath, this.pathMapper, this.settings, nameContext);
if (currentHopCount == this.settings.ServiceDependencyMaxHops)
{
context.Response.StatusCode = Constants.SERVICE_HOPS_ERROR_STATUS_CODE;
return;
}
string manifest = await ManifestGenerator.GenerateJson(configuration.APIName, configuration.APIVersion, dependencies).ConfigureAwait(false);
context.Response.ContentType = "application/json";
var manifestBytes = Encoding.UTF8.GetBytes(manifest);
context.Response.OutputStream.Write(manifestBytes, 0, manifestBytes.Length);
}
public HttpListenerServer(NAMEHttpListenerConfiguration nameConfiguration, IFilePathMapper pathMapper)
{
this.pathMapper = pathMapper;
this.nameConfiguration = nameConfiguration;
}
