void Init()
{
context_bound = false;
i_stream = null;
o_stream = null;
prefix = null;
chunked = false;
ms = new MemoryStream();
position = 0;
input_state = InputState.RequestLine;
line_state = LineState.None;
context = new HttpListenerContext(this);
}
bool RemoveSpecial(ArrayList coll, ListenerPrefix prefix)
{
if (coll == null)
{
return(false);
}
int c = coll.Count;
for (int i = 0; i < c; i++)
{
ListenerPrefix p = (ListenerPrefix)coll[i];
if (p.Path == prefix.Path)
{
coll.RemoveAt(i);
return(true);
}
}
return(false);
}
public void RemovePrefix(ListenerPrefix prefix, HttpListener listener)
{
ArrayList current;
ArrayList future;
if (prefix.Host == "*")
{
do
{
current = unhandled;
future = (current != null) ? (ArrayList)current.Clone() : new ArrayList();
if (!RemoveSpecial(future, prefix))
{
break; // Prefix not found
}
} while (Interlocked.CompareExchange(ref unhandled, future, current) != current);
CheckIfRemove();
return;
}
if (prefix.Host == "+")
{
do
{
current = all;
future = (current != null) ? (ArrayList)current.Clone() : new ArrayList();
if (!RemoveSpecial(future, prefix))
{
break; // Prefix not found
}
} while (Interlocked.CompareExchange(ref all, future, current) != current);
CheckIfRemove();
return;
}
Hashtable prefs, p2;
do
{
prefs = prefixes;
if (!prefs.ContainsKey(prefix))
{
break;
}
p2 = (Hashtable)prefs.Clone();
p2.Remove(prefix);
} while (Interlocked.CompareExchange(ref prefixes, p2, prefs) != prefs);
CheckIfRemove();
}
public void AddPrefix(ListenerPrefix prefix, HttpListener listener)
{
ArrayList current;
ArrayList future;
if (prefix.Host == "*")
{
do
{
current = unhandled;
future = (current != null) ? (ArrayList)current.Clone() : new ArrayList();
prefix.Listener = listener;
AddSpecial(future, prefix);
} while (Interlocked.CompareExchange(ref unhandled, future, current) != current);
return;
}
if (prefix.Host == "+")
{
do
{
current = all;
future = (current != null) ? (ArrayList)current.Clone() : new ArrayList();
prefix.Listener = listener;
AddSpecial(future, prefix);
} while (Interlocked.CompareExchange(ref all, future, current) != current);
return;
}
Hashtable prefs, p2;
do
{
prefs = prefixes;
if (prefs.ContainsKey(prefix))
{
HttpListener other = (HttpListener)prefs[prefix];
if (other != listener) // TODO: code.
{
throw new HttpListenerException(400, "There's another listener for " + prefix);
}
return;
}
p2 = (Hashtable)prefs.Clone();
p2[prefix] = listener;
} while (Interlocked.CompareExchange(ref prefixes, p2, prefs) != prefs);
}
HttpListener SearchListener(Uri uri, out ListenerPrefix prefix)
{
prefix = null;
if (uri == null)
{
return(null);
}
string host = uri.Host;
int port = uri.Port;
string path = HttpUtility.UrlDecode(uri.AbsolutePath);
string path_slash = path[path.Length - 1] == '/' ? path : path + "/";
HttpListener best_match = null;
int best_length = -1;
if (host != null && host != "")
{
Hashtable p_ro = prefixes;
foreach (ListenerPrefix p in p_ro.Keys)
{
string ppath = p.Path;
if (ppath.Length < best_length)
{
continue;
}
if (p.Host != host || p.Port != port)
{
continue;
}
if (path.StartsWith(ppath) || path_slash.StartsWith(ppath))
{
best_length = ppath.Length;
best_match = (HttpListener)p_ro[p];
prefix = p;
}
}
if (best_length != -1)
{
return(best_match);
}
}
ArrayList list = unhandled;
best_match = MatchFromList(host, path, list, out prefix);
if (path != path_slash && best_match == null)
{
best_match = MatchFromList(host, path_slash, list, out prefix);
}
if (best_match != null)
{
return(best_match);
}
list = all;
best_match = MatchFromList(host, path, list, out prefix);
if (path != path_slash && best_match == null)
{
best_match = MatchFromList(host, path_slash, list, out prefix);
}
if (best_match != null)
{
return(best_match);
}
return(null);
}
