/// <summary>
/// Creates a new instance of HttpServer.
/// </summary>
/// <param name="myIPAddress">The IP address this server will listen for new connections.</param>
/// <param name="myPort">The port this server will listen for new connections.</param>
/// <param name="myServerLogic">An instance of the server logic. The class of this instance must implement at least one interface that is decorated with a ServiceContractAttribute.</param>
/// <param name="mySecurity"></param>
/// <param name="mySecureConnection">If true, this server will listen for request with HTTPS protocol, otherwise HTTP.</param>
/// <param name="myAutoStart">If true, the method Start is called implicitly, otherwise not.</param>
/// <exception cref="ArgumentNullException">If myIPAddress is <c>NULL</c>.</exception>
/// <exception cref="ArgumentNullException">If myServerLogic is <c>NULL</c>.</exception>
public HttpServer(IPAddress myIPAddress, ushort myPort, object myServerLogic, IServerSecurity mySecurity = null, bool mySecureConnection = false, bool myAutoStart = false)
{
#region argument checks
if (myIPAddress == null)
{
throw new ArgumentNullException("myIPAddress");
}
if (myServerLogic == null)
{
throw new ArgumentNullException("myServerLogic");
}
#endregion
#region set data
ListeningAddress = myIPAddress;
ListeningPort = myPort;
IsSecureConnection = mySecureConnection;
IsRunning = false;
_logic = myServerLogic;
_security = mySecurity;
_parser = ParseInterface();
#endregion
CreateListener(); //create listener as late as possible
_disposalService = new DisposalService(GetType().Name);
//add close method to desposal service,
//this service will provide that the dispose method won't be called multiple times
_disposalService.AddManagedResourceDisposal(Close);
if (myAutoStart)
{
Start();
}
}
/// <summary>
/// Parses the class of _logic for interesting attributes.
/// </summary>
/// <remarks>
/// Searches for interesting attributes in the inheritance hierarchy of the class of the _logic.
/// After that it parses the attributes and builds a connection from the url pattern to the implementation method.
/// </remarks>
private UrlParser ParseInterface()
{
var result = new UrlParser(new[] { '/' });
#region Find the correct interfaces
var allInterfaces = from interfaceInst
in _logic.GetType().GetInterfaces()
where interfaceInst.GetCustomAttributes(typeof (ServiceContractAttribute), false).Count() > 0
select interfaceInst;
if (allInterfaces.Count() == 0)
throw new ArgumentException("Could not find any valid interface having the ServiceContract attribute!");
#endregion
foreach (var currentInterfaces in allInterfaces)
{
#region Check global Force-/NoAuthenticationAttribute
var globalNeedsExplicitAuthentication = false;
if (currentInterfaces.GetCustomAttributes(typeof (ForceAuthenticationAttribute), false).Count() > 0)
globalNeedsExplicitAuthentication = true;
#endregion
foreach (var method in currentInterfaces.GetMethods())
{
var needsExplicitAuthentication = globalNeedsExplicitAuthentication;
var attributes = method.GetCustomAttributes(false);
#region Authentication
if (attributes.Any(_ => _.GetType() == typeof(NoAuthenticationAttribute)))
needsExplicitAuthentication = false;
if (attributes.Any(_ => _.GetType() == typeof(ForceAuthenticationAttribute)))
needsExplicitAuthentication = true;
#endregion
foreach (var attribute in attributes)
{
String aURIPattern = null;
String webMethod = null;
#region WebGet
var webAttribute = attribute as WebGetAttribute;
if (webAttribute != null)
{
aURIPattern = webAttribute.UriTemplate.ToLower();
webMethod = "GET";
}
#endregion
#region WebInvoke
var webInvokeAttribute = attribute as WebInvokeAttribute;
if (webInvokeAttribute != null)
{
aURIPattern = webInvokeAttribute.UriTemplate.ToLower();
webMethod = webInvokeAttribute.Method;
}
#endregion
if (aURIPattern != null)
result.AddUrl(aURIPattern, method, needsExplicitAuthentication, webMethod);
}
}
}
return result;
}
/// <summary>
/// Creates a new instance of HttpServer.
/// </summary>
/// <param name="myIPAddress">The IP address this server will listen for new connections.</param>
/// <param name="myPort">The port this server will listen for new connections.</param>
/// <param name="myServerLogic">An instance of the server logic. The class of this instance must implement at least one interface that is decorated with a ServiceContractAttribute.</param>
/// <param name="mySecurity"></param>
/// <param name="mySecureConnection">If true, this server will listen for request with HTTPS protocol, otherwise HTTP.</param>
/// <param name="myAutoStart">If true, the method Start is called implicitly, otherwise not.</param>
/// <exception cref="ArgumentNullException">If myIPAddress is <c>NULL</c>.</exception>
/// <exception cref="ArgumentNullException">If myServerLogic is <c>NULL</c>.</exception>
public HttpServer(IPAddress myIPAddress, ushort myPort, object myServerLogic, IServerSecurity mySecurity = null, bool mySecureConnection = false, bool myAutoStart = false)
{
#region argument checks
if (myIPAddress == null)
throw new ArgumentNullException("myIPAddress");
if (myServerLogic == null)
throw new ArgumentNullException("myServerLogic");
#endregion
#region set data
ListeningAddress = myIPAddress;
ListeningPort = myPort;
IsSecureConnection = mySecureConnection;
IsRunning = false;
_logic = myServerLogic;
_security = mySecurity;
_parser = ParseInterface();
#endregion
CreateListener(); //create listener as late as possible
_disposalService = new DisposalService(GetType().Name);
//add close method to desposal service,
//this service will provide that the dispose method won't be called multiple times
_disposalService.AddManagedResourceDisposal(Close);
if (myAutoStart)
Start();
}
/// <summary>
/// Parses the class of _logic for interesting attributes.
/// </summary>
/// <remarks>
/// Searches for interesting attributes in the inheritance hierarchy of the class of the _logic.
/// After that it parses the attributes and builds a connection from the url pattern to the implementation method.
/// </remarks>
private UrlParser ParseInterface()
{
var result = new UrlParser(new[] { '/' });
#region Find the correct interfaces
var allInterfaces = from interfaceInst
in _logic.GetType().GetInterfaces()
where interfaceInst.GetCustomAttributes(typeof(ServiceContractAttribute), false).Count() > 0
select interfaceInst;
if (allInterfaces.Count() == 0)
{
throw new ArgumentException("Could not find any valid interface having the ServiceContract attribute!");
}
#endregion
foreach (var currentInterfaces in allInterfaces)
{
#region Check global Force-/NoAuthenticationAttribute
var globalNeedsExplicitAuthentication = false;
if (currentInterfaces.GetCustomAttributes(typeof(ForceAuthenticationAttribute), false).Count() > 0)
{
globalNeedsExplicitAuthentication = true;
}
#endregion
foreach (var method in currentInterfaces.GetMethods())
{
var needsExplicitAuthentication = globalNeedsExplicitAuthentication;
var attributes = method.GetCustomAttributes(false);
#region Authentication
if (attributes.Any(_ => _.GetType() == typeof(NoAuthenticationAttribute)))
{
needsExplicitAuthentication = false;
}
if (attributes.Any(_ => _.GetType() == typeof(ForceAuthenticationAttribute)))
{
needsExplicitAuthentication = true;
}
#endregion
foreach (var attribute in attributes)
{
String aURIPattern = null;
String webMethod = null;
#region WebGet
var webAttribute = attribute as WebGetAttribute;
if (webAttribute != null)
{
aURIPattern = webAttribute.UriTemplate.ToLower();
webMethod = "GET";
}
#endregion
#region WebInvoke
var webInvokeAttribute = attribute as WebInvokeAttribute;
if (webInvokeAttribute != null)
{
aURIPattern = webInvokeAttribute.UriTemplate.ToLower();
webMethod = webInvokeAttribute.Method;
}
#endregion
if (aURIPattern != null)
{
result.AddUrl(aURIPattern, method, needsExplicitAuthentication, webMethod);
}
}
}
}
return(result);
}
