void RemoveSpecial(ArrayList coll, ListenerPrefix prefix)
{
if (coll == null)
{
return;
}
int c = coll.Count;
for (int i = 0; i < c; i++)
{
ListenerPrefix p = (ListenerPrefix)coll [i];
if (p.Path == prefix.Path)
{
coll.RemoveAt(i);
CheckIfRemove();
return;
}
}
}
public void RemovePrefix(ListenerPrefix prefix, HttpListener listener)
{
lock (prefixes) {
if (prefix.Host == "*")
{
RemoveSpecial(unhandled, prefix);
return;
}
if (prefix.Host == "+")
{
RemoveSpecial(all, prefix);
return;
}
if (prefixes.ContainsKey(prefix))
{
prefixes.Remove(prefix);
}
}
}
public void AddPrefix(ListenerPrefix prefix, HttpListener listener)
{
lock (prefixes) {
if (prefix.Host == "*")
{
if (unhandled == null)
{
unhandled = new ArrayList();
}
prefix.Listener = listener;
AddSpecial(unhandled, prefix);
return;
}
if (prefix.Host == "+")
{
if (all == null)
{
all = new ArrayList();
}
prefix.Listener = listener;
AddSpecial(all, prefix);
return;
}
if (prefixes.ContainsKey(prefix))
{
HttpListener other = (HttpListener)prefixes [prefix];
if (other != listener) // TODO: code.
{
throw new HttpListenerException(400, "There's another listener for " + prefix);
}
return;
}
prefixes [prefix] = listener;
}
}
HttpListener SearchListener(string host, string raw_url, out ListenerPrefix prefix)
{
prefix = null;
if (raw_url == null)
{
return(null);
}
//TODO: We should use a ReaderWriterLock between this and the add/remove operations.
if (host != null)
{
int colon = host.IndexOf(':');
if (colon >= 0)
{
host = host.Substring(0, colon);
}
}
string path;
Uri raw_uri;
if (UriHelper.MaybeUri(raw_url) && Uri.TryCreate(raw_url, UriKind.Absolute, out raw_uri))
{
path = raw_uri.PathAndQuery;
}
else
{
path = HttpUtility.UrlDecode(raw_url);
}
string path_slash = path [path.Length - 1] == '/' ? path : path + "/";
HttpListener best_match = null;
int best_length = -1;
lock (prefixes) {
if (host != null && host != "")
{
foreach (ListenerPrefix p in prefixes.Keys)
{
string ppath = p.Path;
if (ppath.Length < best_length)
{
continue;
}
if (p.Host == host && (path.StartsWith(ppath) || path_slash.StartsWith(ppath)))
{
best_length = ppath.Length;
best_match = (HttpListener)prefixes [p];
prefix = p;
}
}
if (best_length != -1)
{
return(best_match);
}
}
best_match = MatchFromList(host, path, unhandled, out prefix);
if (best_match != null)
{
return(best_match);
}
best_match = MatchFromList(host, path, all, out prefix);
if (best_match != null)
{
return(best_match);
}
}
return(null);
}
