//
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// ListenerPrefix.cs
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// Copied from System.ListenerPrefix
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//
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// Author:
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// Gonzalo Paniagua Javier (gonzalo@novell.com)
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// Oleg Mihailik (mihailik gmail co_m)
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//
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// Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Net;
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namespace WebSocketSharp.Net {
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sealed class ListenerPrefix {
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IPAddress [] addresses;
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string host;
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string original;
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string path;
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ushort port;
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bool secure;
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public HttpListener Listener;
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public ListenerPrefix (string prefix)
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{
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original = prefix;
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Parse (prefix);
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}
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public IPAddress [] Addresses {
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get { return addresses; }
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set { addresses = value; }
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}
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public string Host {
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get { return host; }
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}
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public int Port {
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get { return (int) port; }
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}
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public string Path {
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get { return path; }
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}
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public bool Secure {
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get { return secure; }
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}
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void Parse (string uri)
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{
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int default_port = (uri.StartsWith ("http://")) ? 80 : -1;
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if (default_port == -1) {
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default_port = (uri.StartsWith ("https://")) ? 443 : -1;
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secure = true;
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}
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int length = uri.Length;
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int start_host = uri.IndexOf (':') + 3;
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if (start_host >= length)
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throw new ArgumentException ("No host specified.");
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int colon = uri.IndexOf (':', start_host, length - start_host);
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int root;
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if (colon > 0) {
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host = uri.Substring (start_host, colon - start_host);
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root = uri.IndexOf ('/', colon, length - colon);
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port = (ushort) Int32.Parse (uri.Substring (colon + 1, root - colon - 1));
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path = uri.Substring (root);
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} else {
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root = uri.IndexOf ('/', start_host, length - start_host);
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host = uri.Substring (start_host, root - start_host);
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path = uri.Substring (root);
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}
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if (path.Length != 1)
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path = path.Substring (0, path.Length - 1);
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}
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public static void CheckUri (string uri)
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{
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if (uri == null)
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throw new ArgumentNullException ("uriPrefix");
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int default_port = (uri.StartsWith ("http://")) ? 80 : -1;
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if (default_port == -1)
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default_port = (uri.StartsWith ("https://")) ? 443 : -1;
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if (default_port == -1)
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throw new ArgumentException ("Only 'http' and 'https' schemes are supported.");
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int length = uri.Length;
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int start_host = uri.IndexOf (':') + 3;
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if (start_host >= length)
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throw new ArgumentException ("No host specified.");
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int colon = uri.IndexOf (':', start_host, length - start_host);
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if (start_host == colon)
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throw new ArgumentException ("No host specified.");
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int root;
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if (colon > 0) {
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root = uri.IndexOf ('/', colon, length - colon);
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if (root == -1)
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throw new ArgumentException ("No path specified.");
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try {
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int p = Int32.Parse (uri.Substring (colon + 1, root - colon - 1));
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if (p <= 0 || p >= 65536)
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throw new Exception ();
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} catch {
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throw new ArgumentException ("Invalid port.");
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}
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} else {
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root = uri.IndexOf ('/', start_host, length - start_host);
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if (root == -1)
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throw new ArgumentException ("No path specified.");
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}
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if (uri [uri.Length - 1] != '/')
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throw new ArgumentException ("The prefix must end with '/'");
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}
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// Equals and GetHashCode are required to detect duplicates in HttpListenerPrefixCollection.
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public override bool Equals (object o)
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{
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ListenerPrefix other = o as ListenerPrefix;
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if (other == null)
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return false;
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return (original == other.original);
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}
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public override int GetHashCode ()
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{
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return original.GetHashCode ();
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}
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public override string ToString ()
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{
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return original;
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}
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}
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}
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