| /* |
| * Copyright (c) 1995, 2003, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.net.www.protocol.gopher; |
| |
| import java.io.*; |
| import java.util.*; |
| import sun.net.NetworkClient; |
| import java.net.URL; |
| import java.net.URLStreamHandler; |
| import java.net.Proxy; |
| import java.net.InetSocketAddress; |
| import java.net.SocketPermission; |
| import java.security.Permission; |
| import sun.net.www.protocol.http.HttpURLConnection; |
| |
| /** |
| * A class to handle the gopher protocol. |
| */ |
| |
| public class Handler extends java.net.URLStreamHandler { |
| |
| protected int getDefaultPort() { |
| return 70; |
| } |
| |
| public java.net.URLConnection openConnection(URL u) |
| throws IOException { |
| return openConnection(u, null); |
| } |
| |
| public java.net.URLConnection openConnection(URL u, Proxy p) |
| throws IOException { |
| |
| |
| /* if set for proxy usage then go through the http code to get */ |
| /* the url connection. */ |
| if (p == null && GopherClient.getUseGopherProxy()) { |
| String host = GopherClient.getGopherProxyHost(); |
| if (host != null) { |
| InetSocketAddress saddr = InetSocketAddress.createUnresolved(host, GopherClient.getGopherProxyPort()); |
| |
| p = new Proxy(Proxy.Type.HTTP, saddr); |
| } |
| } |
| if (p != null) { |
| return new HttpURLConnection(u, p); |
| } |
| |
| return new GopherURLConnection(u); |
| } |
| } |
| |
| class GopherURLConnection extends sun.net.www.URLConnection { |
| |
| Permission permission; |
| |
| GopherURLConnection(URL u) { |
| super(u); |
| } |
| |
| public void connect() throws IOException { |
| } |
| |
| public InputStream getInputStream() throws IOException { |
| return new GopherClient(this).openStream(url); |
| } |
| |
| public Permission getPermission() { |
| if (permission == null) { |
| int port = url.getPort(); |
| port = port < 0 ? 70 : port; |
| String host = url.getHost() + ":" + url.getPort(); |
| permission = new SocketPermission(host, "connect"); |
| } |
| return permission; |
| } |
| } |