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//
// System.Net.ListenerPrefix
//
// Author:
// Gonzalo Paniagua Javier (gonzalo@novell.com)
// Oleg Mihailik (mihailik gmail co_m)
//
// 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.
//
namespace System.Net {
sealed class ListenerPrefix
{
string original;
string host;
ushort port;
string path;
bool secure;
IPAddress [] addresses;
public HttpListener Listener;
public ListenerPrefix (string prefix)
{
this.original = prefix;
Parse (prefix);
}
public override string ToString ()
{
return original;
}
public IPAddress [] Addresses {
get { return addresses; }
set { addresses = value; }
}
public bool Secure {
get { return secure; }
}
public string Host {
get { return host; }
}
public int Port {
get { return (int) port; }
}
public string Path {
get { return path; }
}
// Equals and GetHashCode are required to detect duplicates in HttpListenerPrefixCollection.
public override bool Equals (object o)
{
ListenerPrefix other = o as ListenerPrefix;
if (other == null)
return false;
return (original == other.original);
}
public override int GetHashCode ()
{
return original.GetHashCode ();
}
void Parse (string uri)
{
ushort default_port = 80;
if (uri.StartsWith ("https://")) {
default_port = 443;
secure = true;
}
int length = uri.Length;
int start_host = uri.IndexOf (':') + 3;
if (start_host >= length)
throw new ArgumentException ("No host specified.");
int startPort = uri.IndexOf (':', start_host, length - start_host);
if (uri [start_host] == '[') {
startPort = uri.IndexOf ("]:") + 1;
}
if (start_host == startPort)
throw new ArgumentException ("No host specified.");
int root = uri.IndexOf ('/', start_host, length - start_host);
if (root == -1)
throw new ArgumentException ("No path specified.");
if (startPort > 0) {
host = uri.Substring (start_host, startPort - start_host).Trim ('[', ']');
port = UInt16.Parse (uri.Substring (startPort + 1, root - startPort - 1));
} else {
host = uri.Substring (start_host, root - start_host).Trim ('[', ']');
port = default_port;
}
path = uri.Substring (root);
if (path.Length != 1)
path = path.Substring (0, path.Length - 1);
}
public static void CheckUri (string uri)
{
if (uri == null)
throw new ArgumentNullException ("uriPrefix");
if (!uri.StartsWith ("http://") && !uri.StartsWith ("https://"))
throw new ArgumentException ("Only 'http' and 'https' schemes are supported.");
int length = uri.Length;
int start_host = uri.IndexOf (':') + 3;
if (start_host >= length)
throw new ArgumentException ("No host specified.");
int startPort = uri.IndexOf (':', start_host, length - start_host);
if (uri [start_host] == '[')
startPort = uri.IndexOf ("]:") + 1;
if (start_host == startPort)
throw new ArgumentException ("No host specified.");
int root = uri.IndexOf ('/', start_host, length - start_host);
if (root == -1)
throw new ArgumentException ("No path specified.");
if (startPort > 0) {
try {
int p = Int32.Parse (uri.Substring (startPort + 1, root - startPort - 1));
if (p <= 0 || p >= 65536)
throw new Exception ();
} catch {
throw new ArgumentException ("Invalid port.");
}
}
if (uri [uri.Length - 1] != '/')
throw new ArgumentException ("The prefix must end with '/'");
}
}
}
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