private HttpListener searchListener(Uri uri, out HttpListenerPrefix prefix)
{
prefix = null;
if (uri == null)
{
return(null);
}
var host = uri.Host;
var dns = Uri.CheckHostName(host) == UriHostNameType.Dns;
var port = uri.Port;
var path = HttpUtility.UrlDecode(uri.AbsolutePath);
var pathSlash = path[path.Length - 1] == '/' ? path : path + "/";
HttpListener bestMatch = null;
var bestLen = -1;
if (host != null && host.Length > 0)
{
foreach (var pref in _prefixes.Keys)
{
var ppath = pref.Path;
if (ppath.Length < bestLen)
{
continue;
}
if (pref.Port != port)
{
continue;
}
if (dns)
{
var phost = pref.Host;
if (Uri.CheckHostName(phost) == UriHostNameType.Dns && phost != host)
{
continue;
}
}
if (path.StartsWith(ppath) || pathSlash.StartsWith(ppath))
{
bestLen = ppath.Length;
bestMatch = _prefixes[pref];
prefix = pref;
}
}
if (bestLen != -1)
{
return(bestMatch);
}
}
var list = _unhandled;
bestMatch = matchFromList(host, path, list, out prefix);
if (path != pathSlash && bestMatch == null)
{
bestMatch = matchFromList(host, pathSlash, list, out prefix);
}
if (bestMatch != null)
{
return(bestMatch);
}
list = _all;
bestMatch = matchFromList(host, path, list, out prefix);
if (path != pathSlash && bestMatch == null)
{
bestMatch = matchFromList(host, pathSlash, list, out prefix);
}
if (bestMatch != null)
{
return(bestMatch);
}
return(null);
}
public void RemovePrefix(HttpListenerPrefix prefix, HttpListener listener)
{
List <HttpListenerPrefix> current, future;
if (prefix.Host == "*")
{
do
{
current = _unhandled;
if (current == null)
{
break;
}
future = new List <HttpListenerPrefix> (current);
if (!removeSpecial(future, prefix))
{
break; // The prefix wasn't found.
}
}while (Interlocked.CompareExchange(ref _unhandled, future, current) != current);
checkIfRemove();
return;
}
if (prefix.Host == "+")
{
do
{
current = _all;
if (current == null)
{
break;
}
future = new List <HttpListenerPrefix> (current);
if (!removeSpecial(future, prefix))
{
break; // The prefix wasn't found.
}
}while (Interlocked.CompareExchange(ref _all, future, current) != current);
checkIfRemove();
return;
}
Dictionary <HttpListenerPrefix, HttpListener> prefs, prefs2;
do
{
prefs = _prefixes;
if (!prefs.ContainsKey(prefix))
{
break;
}
prefs2 = new Dictionary <HttpListenerPrefix, HttpListener> (prefs);
prefs2.Remove(prefix);
}while (Interlocked.CompareExchange(ref _prefixes, prefs2, prefs) != prefs);
checkIfRemove();
}
internal HttpListenerPrefixCollection (HttpListener listener)
{
_listener = listener;
_prefixes = new List<string> ();
}