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//
// System.Net.EndPointManager
//
// Author:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Collections;
using System.Collections.Generic;
namespace System.Net {
sealed class EndPointManager
{
// Dictionary<IPAddress, Dictionary<int, EndPointListener>>
static Hashtable ip_to_endpoints = new Hashtable ();
private EndPointManager ()
{
}
public static void AddListener (HttpListener listener)
{
ArrayList added = new ArrayList ();
try {
lock (ip_to_endpoints) {
foreach (string prefix in listener.Prefixes) {
AddPrefixInternal (prefix, listener);
added.Add (prefix);
}
}
} catch {
foreach (string prefix in added) {
RemovePrefix (prefix, listener);
}
throw;
}
}
public static void AddPrefix (string prefix, HttpListener listener)
{
lock (ip_to_endpoints) {
AddPrefixInternal (prefix, listener);
}
}
static void AddPrefixInternal (string p, HttpListener listener)
{
ListenerPrefix lp = new ListenerPrefix (p);
if (lp.Path.IndexOf ('%') != -1)
throw new HttpListenerException (400, "Invalid path.");
if (lp.Path.IndexOf ("//", StringComparison.Ordinal) != -1) // TODO: Code?
throw new HttpListenerException (400, "Invalid path.");
// listens on all the interfaces if host name cannot be parsed by IPAddress.
EndPointListener epl = GetEPListener (lp.Host, lp.Port, listener, lp.Secure);
epl.AddPrefix (lp, listener);
}
static EndPointListener GetEPListener (string host, int port, HttpListener listener, bool secure)
{
IPAddress addr;
if (host == "*")
addr = IPAddress.Any;
else if (IPAddress.TryParse(host, out addr) == false){
try {
#pragma warning disable 618
IPHostEntry iphost = Dns.GetHostByName(host);
#pragma warning restore 618
if (iphost != null)
addr = iphost.AddressList[0];
else
addr = IPAddress.Any;
} catch {
addr = IPAddress.Any;
}
}
Hashtable p = null; // Dictionary<int, EndPointListener>
if (ip_to_endpoints.ContainsKey (addr)) {
p = (Hashtable) ip_to_endpoints [addr];
} else {
p = new Hashtable ();
ip_to_endpoints [addr] = p;
}
EndPointListener epl = null;
if (p.ContainsKey (port)) {
epl = (EndPointListener) p [port];
} else {
epl = new EndPointListener (listener, addr, port, secure);
p [port] = epl;
}
return epl;
}
public static void RemoveEndPoint (EndPointListener epl, IPEndPoint ep)
{
lock (ip_to_endpoints) {
// Dictionary<int, EndPointListener> p
Hashtable p = null;
p = (Hashtable) ip_to_endpoints [ep.Address];
p.Remove (ep.Port);
if (p.Count == 0) {
ip_to_endpoints.Remove (ep.Address);
}
epl.Close ();
}
}
public static void RemoveListener (HttpListener listener)
{
lock (ip_to_endpoints) {
foreach (string prefix in listener.Prefixes) {
RemovePrefixInternal (prefix, listener);
}
}
}
public static void RemovePrefix (string prefix, HttpListener listener)
{
lock (ip_to_endpoints) {
RemovePrefixInternal (prefix, listener);
}
}
static void RemovePrefixInternal (string prefix, HttpListener listener)
{
ListenerPrefix lp = new ListenerPrefix (prefix);
if (lp.Path.IndexOf ('%') != -1)
return;
if (lp.Path.IndexOf ("//", StringComparison.Ordinal) != -1)
return;
EndPointListener epl = GetEPListener (lp.Host, lp.Port, listener, lp.Secure);
epl.RemovePrefix (lp, listener);
}
}
}
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