internal KestrelConfigurationLoader(
KestrelServerOptions options,
IConfiguration configuration,
IHostEnvironment hostEnvironment,
bool reloadOnChange,
ILogger <KestrelServer> logger,
ILogger <HttpsConnectionMiddleware> httpsLogger)
{
Options = options ?? throw new ArgumentNullException(nameof(options));
Configuration = configuration ?? throw new ArgumentNullException(nameof(configuration));
HostEnvironment = hostEnvironment ?? throw new ArgumentNullException(nameof(hostEnvironment));
Logger = logger ?? throw new ArgumentNullException(nameof(logger));
HttpsLogger = httpsLogger ?? throw new ArgumentNullException(nameof(logger));
ReloadOnChange = reloadOnChange;
ConfigurationReader = new ConfigurationReader(configuration);
CertificateConfigLoader = new CertificateConfigLoader(hostEnvironment, logger);
}
private void LoadDefaultCert()
{
if (ConfigurationReader.Certificates.TryGetValue("Default", out var defaultCertConfig))
{
var defaultCert = CertificateConfigLoader.LoadCertificate(defaultCertConfig, "Default");
if (defaultCert != null)
{
DefaultCertificateConfig = defaultCertConfig;
Options.DefaultCertificate = defaultCert;
}
}
else
{
var(certificate, certificateConfig) = FindDeveloperCertificateFile();
if (certificate != null)
{
Logger.LocatedDevelopmentCertificate(certificate);
DefaultCertificateConfig = certificateConfig;
Options.DefaultCertificate = certificate;
}
}
}
// Adds endpoints from config to KestrelServerOptions.ConfigurationBackedListenOptions and configures some other options.
// Any endpoints that were removed from the last time endpoints were loaded are returned.
internal (List <ListenOptions>, List <ListenOptions>) Reload()
{
var endpointsToStop = Options.ConfigurationBackedListenOptions.ToList();
var endpointsToStart = new List <ListenOptions>();
Options.ConfigurationBackedListenOptions.Clear();
DefaultCertificateConfig = null;
ConfigurationReader = new ConfigurationReader(Configuration);
LoadDefaultCert();
foreach (var endpoint in ConfigurationReader.Endpoints)
{
var listenOptions = AddressBinder.ParseAddress(endpoint.Url, out var https);
if (!https)
{
ConfigurationReader.ThrowIfContainsHttpsOnlyConfiguration(endpoint);
}
Options.ApplyEndpointDefaults(listenOptions);
if (endpoint.Protocols.HasValue)
{
listenOptions.Protocols = endpoint.Protocols.Value;
}
else
{
// Ensure endpoint is reloaded if it used the default protocol and the protocol changed.
// listenOptions.Protocols should already be set to this by ApplyEndpointDefaults.
endpoint.Protocols = ConfigurationReader.EndpointDefaults.Protocols;
}
// Compare to UseHttps(httpsOptions => { })
var httpsOptions = new HttpsConnectionAdapterOptions();
if (https)
{
// Defaults
Options.ApplyHttpsDefaults(httpsOptions);
if (endpoint.SslProtocols.HasValue)
{
httpsOptions.SslProtocols = endpoint.SslProtocols.Value;
}
else
{
// Ensure endpoint is reloaded if it used the default protocol and the SslProtocols changed.
endpoint.SslProtocols = ConfigurationReader.EndpointDefaults.SslProtocols;
}
if (endpoint.ClientCertificateMode.HasValue)
{
httpsOptions.ClientCertificateMode = endpoint.ClientCertificateMode.Value;
}
else
{
// Ensure endpoint is reloaded if it used the default mode and the ClientCertificateMode changed.
endpoint.ClientCertificateMode = ConfigurationReader.EndpointDefaults.ClientCertificateMode;
}
// A cert specified directly on the endpoint overrides any defaults.
httpsOptions.ServerCertificate = CertificateConfigLoader.LoadCertificate(endpoint.Certificate, endpoint.Name)
?? httpsOptions.ServerCertificate;
if (httpsOptions.ServerCertificate == null && httpsOptions.ServerCertificateSelector == null)
{
// Fallback
Options.ApplyDefaultCert(httpsOptions);
// Ensure endpoint is reloaded if it used the default certificate and the certificate changed.
endpoint.Certificate = DefaultCertificateConfig;
}
}
// Now that defaults have been loaded, we can compare to the currently bound endpoints to see if the config changed.
// There's no reason to rerun an EndpointConfigurations callback if nothing changed.
var matchingBoundEndpoints = endpointsToStop.Where(o => o.EndpointConfig == endpoint).ToList();
if (matchingBoundEndpoints.Count > 0)
{
endpointsToStop.RemoveAll(o => o.EndpointConfig == endpoint);
Options.ConfigurationBackedListenOptions.AddRange(matchingBoundEndpoints);
continue;
}
if (EndpointConfigurations.TryGetValue(endpoint.Name, out var configureEndpoint))
{
var endpointConfig = new EndpointConfiguration(https, listenOptions, httpsOptions, endpoint.ConfigSection);
configureEndpoint(endpointConfig);
}
// EndpointDefaults or configureEndpoint may have added an https adapter.
if (https && !listenOptions.IsTls)
{
if (endpoint.Sni.Count == 0)
{
if (httpsOptions.ServerCertificate == null && httpsOptions.ServerCertificateSelector == null)
{
throw new InvalidOperationException(CoreStrings.NoCertSpecifiedNoDevelopmentCertificateFound);
}
listenOptions.UseHttps(httpsOptions);
}
else
{
var sniOptionsSelector = new SniOptionsSelector(endpoint.Name, endpoint.Sni, CertificateConfigLoader,
httpsOptions, listenOptions.Protocols, HttpsLogger);
var tlsCallbackOptions = new TlsHandshakeCallbackOptions()
{
OnConnection = SniOptionsSelector.OptionsCallback,
HandshakeTimeout = httpsOptions.HandshakeTimeout,
OnConnectionState = sniOptionsSelector,
};
listenOptions.UseHttps(tlsCallbackOptions);
}
}
listenOptions.EndpointConfig = endpoint;
endpointsToStart.Add(listenOptions);
Options.ConfigurationBackedListenOptions.Add(listenOptions);
}
return(endpointsToStop, endpointsToStart);
}
