/// <summary>
/// Load the composite http service list.
/// </summary>
/// <param name="create">Create the composition collection or release.</param>
public void Compose(bool create = true)
{
if (create)
{
// Read from the configuration file
// all the directories that contain
// any composite services.
Nequeo.Composite.Configuration.Reader reader = new Nequeo.Composite.Configuration.Reader();
string[] paths = reader.GetServicePaths();
AggregateCatalog catalog = new AggregateCatalog();
// For each directory found search for composite server assemplies
// and add the reference of the assemblies into the handler collection
foreach (string path in paths)
{
catalog.Catalogs.Add(new DirectoryCatalog(path, "*HttpService.dll"));
}
// Add the collection catalog to the composite container
_container = new CompositionContainer(catalog);
_container.ComposeParts(this);
}
else
{
// Release the exported composite services.
_container.ReleaseExports <IHttpServerContext, IContentMetadata>(HttpServerContext);
_container.Dispose();
// Release the handle.
HttpServerContext = null;
}
}
/// <summary>
/// Removes a collection of exports from composition and releases their resources if possible.
/// </summary>
public void Release()
{
try
{
// Release the exported composite services.
_container.ReleaseExports <ICT, IMT>(CompositionContext);
// Release the handle.
CompositionContext = null;
}
catch { }
}
public void Dispose()
{
if (!_stopped)
{
_stopped = true;
_service?.RemoveListener(this);
_tcpListener?.Stop();
if (null != _mefContainer)
{
if (null != _authenticators)
{
_mefContainer.ReleaseExports(_authenticators);
}
_mefContainer.Dispose();
}
_authenticators = null;
}
}
public TDSListener(TDSProxyService service, Configuration.ListenerElement configuration)
{
var insideAddresses = Dns.GetHostAddresses(configuration.ForwardToHost);
if (0 == insideAddresses.Length)
{
log.ErrorFormat("Unable to resolve forwardToHost=\"{0}\" for listener {1}", configuration.ForwardToHost, configuration.Name);
_stopped = true;
return;
}
ForwardTo = new IPEndPoint(insideAddresses.First(), configuration.ForwardToPort);
_service = service;
var bindToEP = new IPEndPoint(configuration.BindToAddress ?? IPAddress.Any, configuration.ListenOnPort);
try
{
var catalog = new AssemblyCatalog(configuration.AuthenticatorDll);
_mefContainer = new CompositionContainer(catalog);
var exports = _mefContainer.GetExports <IAuthenticator>().ToList();
var export = exports.FirstOrDefault(a => a.Value.GetType().FullName == configuration.AuthenticatorClass);
if (null == export)
{
log.ErrorFormat(
"Found dll {0} but not authenticator implementation {1} (DLL exported: {2})",
configuration.AuthenticatorDll,
configuration.AuthenticatorClass,
string.Join("; ", exports.Select(exp => exp.Value.GetType().FullName)));
Dispose();
return;
}
_export = export;
Authenticator = _export.Value;
_mefContainer.ReleaseExports(exports.Where(e => e != _export));
}
catch (CompositionException ce)
{
log.Error(
"Failed to find an authenticator. Composition errors:\r\n\t" +
string.Join("\r\n\t", ce.Errors.Select(err => "Element: " + err.Element.DisplayName + ", Error: " + err.Description)),
ce);
Dispose();
return;
}
catch (Exception e)
{
log.Error("Failed to find an authenticator", e);
Dispose();
return;
}
try
{
log.DebugFormat("Opening SSL certificate store {0}.{1}", configuration.SslCertStoreLocation, configuration.SslCertStoreName);
var store = new X509Store(configuration.SslCertStoreName, configuration.SslCertStoreLocation);
store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
var matching = store.Certificates.Find(X509FindType.FindByThumbprint, configuration.SslCertSubjectThumbprint, false);
if (0 == matching.Count)
{
log.ErrorFormat(
"Failed to find SSL certification with thumbprint '{0}' in location {1}, store {2}.",
configuration.SslCertSubjectThumbprint,
configuration.SslCertStoreLocation,
configuration.SslCertStoreName);
Dispose();
return;
}
Certificate = matching[0];
}
catch (Exception e)
{
log.Error("Failed to load SSL certificate", e);
Dispose();
return;
}
_tcpListener = new TcpListener(bindToEP);
_tcpListener.Start();
_tcpListener.BeginAcceptTcpClient(AcceptConnection, _tcpListener);
_service.AddListener(this);
log.InfoFormat(
"Listening on {0} and forwarding to {1} (SSL cert DN {2}; serial {3}; authenticator {4})",
bindToEP,
ForwardTo,
Certificate.Subject,
Certificate.GetSerialNumberString(),
Authenticator.GetType().FullName);
}
/// <summary>
/// 從容器中釋放Export對象
/// </summary>
/// <param name="exports">要釋放的Export對象</param>
public void ReleaseExports(IEnumerable <Export> exports)
{
_container.ReleaseExports(exports);
}
/// <summary>
/// Releases many exports
/// </summary>
/// <typeparam name="T">Type to resolve</typeparam>
/// <param name="exports">Object instances to release</param>
public static void ReleaseMany <T>(IEnumerable <Lazy <T> > exports)
{
Container.ReleaseExports <T>(exports);
}
public TDSListener(TDSProxyService service, ListenerElement configuration)
{
var insideAddresses = Dns.GetHostAddresses(configuration.ForwardToHost);
if (0 == insideAddresses.Length)
{
log.ErrorFormat("Unable to resolve forwardToHost=\"{0}\" for listener {1}", configuration.ForwardToHost, configuration.Name);
_stopped = true;
return;
}
ForwardTo = new IPEndPoint(insideAddresses.First(), configuration.ForwardToPort);
_service = service;
var bindToEP = new IPEndPoint(configuration.BindToAddress ?? IPAddress.Any, configuration.ListenOnPort);
try
{
var catalog = new AggregateCatalog(from AuthenticatorElement a in configuration.Authenticators
select new AssemblyCatalog(a.Dll));
_mefContainer = new CompositionContainer(catalog);
var allExports = _mefContainer.GetExports <IAuthenticator>().ToDictionary(a => a.GetType().GetGenericArguments()[0].FullName);
var authenticators = new Lazy <IAuthenticator> [configuration.Authenticators.Count];
bool die = false;
var used = new List <Lazy <IAuthenticator> >();
for (int i = 0; i < configuration.Authenticators.Count; i++)
{
var a = configuration.Authenticators[i];
if (!allExports.TryGetValue(a.Class, out var export))
{
log.ErrorFormat(
"For authenticator {0} found dll {1} but not class {2} (exports in catalog: {3})",
a.Name,
a.Dll,
a.Class,
string.Join("; ", allExports.Keys));
die = true;
}
used.Add(export);
authenticators[i] = export;
}
if (die)
{
Dispose();
return;
}
_authenticators = authenticators;
_mefContainer.ReleaseExports(allExports.Values.Except(used));
}
catch (CompositionException ce)
{
log.Error(
"Failed to find an authenticator. Composition errors:\r\n\t" +
string.Join("\r\n\t", ce.Errors.Select(err => "Element: " + err.Element.DisplayName + ", Error: " + err.Description)),
ce);
Dispose();
return;
}
catch (Exception e)
{
log.Error("Failed to find an authenticator", e);
Dispose();
return;
}
try
{
log.DebugFormat("Opening SSL certificate store {0}.{1}", configuration.SslCertStoreLocation, configuration.SslCertStoreName);
var store = new X509Store(configuration.SslCertStoreName, configuration.SslCertStoreLocation);
store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
var matching = store.Certificates.Find(X509FindType.FindByThumbprint, configuration.SslCertSubjectThumbprint, false);
if (0 == matching.Count)
{
log.ErrorFormat(
"Failed to find SSL certification with thumbprint '{0}' in location {1}, store {2}.",
configuration.SslCertSubjectThumbprint,
configuration.SslCertStoreLocation,
configuration.SslCertStoreName);
Dispose();
return;
}
Certificate = matching[0];
}
catch (Exception e)
{
log.Error("Failed to load SSL certificate", e);
Dispose();
return;
}
_tcpListener = new TcpListener(bindToEP);
_tcpListener.Start();
_tcpListener.BeginAcceptTcpClient(AcceptConnection, _tcpListener);
_service.AddListener(this);
log.InfoFormat(
"Listening on {0} and forwarding to {1} (SSL cert DN {2}; expires {5} serial {3}; authenticators {4})",
bindToEP,
ForwardTo,
Certificate.Subject,
Certificate.GetSerialNumberString(),
string.Join(", ", from a in Authenticators select a.GetType().FullName),
Certificate.GetExpirationDateString());
}
