author | ohair |
Wed, 06 Apr 2011 22:06:11 -0700 | |
changeset 9035 | 1255eb81cc2f |
parent 7982 | 65f5328a67a2 |
child 12047 | 320a714614e9 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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||
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package sun.net.spi; |
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||
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import java.net.InetSocketAddress; |
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import java.net.Proxy; |
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import java.net.ProxySelector; |
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import java.net.SocketAddress; |
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import java.net.URI; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.StringTokenizer; |
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import java.io.IOException; |
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import sun.misc.RegexpPool; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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import sun.net.NetProperties; |
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import sun.net.SocksProxy; |
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/** |
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* Supports proxy settings using system properties This proxy selector |
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* provides backward compatibility with the old http protocol handler |
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* as far as how proxy is set |
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* |
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* Most of the implementation copied from the old http protocol handler |
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* |
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* Supports http/https/ftp.proxyHost, http/https/ftp.proxyPort, |
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* proxyHost, proxyPort, and http/https/ftp.nonProxyHost, and socks. |
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* NOTE: need to do gopher as well |
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*/ |
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public class DefaultProxySelector extends ProxySelector { |
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/** |
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* This is where we define all the valid System Properties we have to |
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* support for each given protocol. |
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* The format of this 2 dimensional array is : |
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* - 1 row per protocol (http, ftp, ...) |
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* - 1st element of each row is the protocol name |
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* - subsequent elements are prefixes for Host & Port properties |
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* listed in order of priority. |
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* Example: |
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* {"ftp", "ftp.proxy", "ftpProxy", "proxy", "socksProxy"}, |
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* means for FTP we try in that oder: |
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* + ftp.proxyHost & ftp.proxyPort |
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* + ftpProxyHost & ftpProxyPort |
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* + proxyHost & proxyPort |
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* + socksProxyHost & socksProxyPort |
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* |
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* Note that the socksProxy should *always* be the last on the list |
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*/ |
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final static String[][] props = { |
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/* |
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* protocol, Property prefix 1, Property prefix 2, ... |
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*/ |
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{"http", "http.proxy", "proxy", "socksProxy"}, |
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{"https", "https.proxy", "proxy", "socksProxy"}, |
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{"ftp", "ftp.proxy", "ftpProxy", "proxy", "socksProxy"}, |
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{"gopher", "gopherProxy", "socksProxy"}, |
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{"socket", "socksProxy"} |
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}; |
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private static final String SOCKS_PROXY_VERSION = "socksProxyVersion"; |
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private static boolean hasSystemProxies = false; |
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static { |
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final String key = "java.net.useSystemProxies"; |
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Boolean b = AccessController.doPrivileged( |
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new PrivilegedAction<Boolean>() { |
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public Boolean run() { |
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return NetProperties.getBoolean(key); |
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}}); |
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if (b != null && b.booleanValue()) { |
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java.security.AccessController.doPrivileged( |
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new sun.security.action.LoadLibraryAction("net")); |
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hasSystemProxies = init(); |
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} |
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} |
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/** |
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* How to deal with "non proxy hosts": |
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* since we do have to generate a RegexpPool we don't want to do that if |
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* it's not necessary. Therefore we do cache the result, on a per-protocol |
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* basis, and change it only when the "source", i.e. the system property, |
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* did change. |
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*/ |
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static class NonProxyInfo { |
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// Default value for nonProxyHosts, this provides backward compatibility |
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// by excluding localhost and its litteral notations. |
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static final String defStringVal = "localhost|127.*|[::1]"; |
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String hostsSource; |
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RegexpPool hostsPool; |
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final String property; |
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final String defaultVal; |
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static NonProxyInfo ftpNonProxyInfo = new NonProxyInfo("ftp.nonProxyHosts", null, null, defStringVal); |
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static NonProxyInfo httpNonProxyInfo = new NonProxyInfo("http.nonProxyHosts", null, null, defStringVal); |
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NonProxyInfo(String p, String s, RegexpPool pool, String d) { |
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property = p; |
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hostsSource = s; |
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hostsPool = pool; |
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defaultVal = d; |
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} |
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} |
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/** |
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* select() method. Where all the hard work is done. |
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* Build a list of proxies depending on URI. |
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* Since we're only providing compatibility with the system properties |
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* from previous releases (see list above), that list will always |
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* contain 1 single proxy, default being NO_PROXY. |
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*/ |
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public java.util.List<Proxy> select(URI uri) { |
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if (uri == null) { |
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throw new IllegalArgumentException("URI can't be null."); |
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} |
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String protocol = uri.getScheme(); |
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String host = uri.getHost(); |
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if (host == null) { |
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// This is a hack to ensure backward compatibility in two |
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// cases: 1. hostnames contain non-ascii characters, |
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// internationalized domain names. in which case, URI will |
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// return null, see BugID 4957669; 2. Some hostnames can |
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// contain '_' chars even though it's not supposed to be |
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// legal, in which case URI will return null for getHost, |
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// but not for getAuthority() See BugID 4913253 |
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String auth = uri.getAuthority(); |
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if (auth != null) { |
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int i; |
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i = auth.indexOf('@'); |
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if (i >= 0) { |
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auth = auth.substring(i+1); |
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} |
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i = auth.lastIndexOf(':'); |
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if (i >= 0) { |
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auth = auth.substring(0,i); |
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} |
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host = auth; |
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} |
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} |
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if (protocol == null || host == null) { |
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throw new IllegalArgumentException("protocol = "+protocol+" host = "+host); |
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} |
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List<Proxy> proxyl = new ArrayList<Proxy>(1); |
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NonProxyInfo pinfo = null; |
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if ("http".equalsIgnoreCase(protocol)) { |
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pinfo = NonProxyInfo.httpNonProxyInfo; |
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} else if ("https".equalsIgnoreCase(protocol)) { |
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// HTTPS uses the same property as HTTP, for backward |
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// compatibility |
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pinfo = NonProxyInfo.httpNonProxyInfo; |
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} else if ("ftp".equalsIgnoreCase(protocol)) { |
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pinfo = NonProxyInfo.ftpNonProxyInfo; |
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} |
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/** |
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* Let's check the System properties for that protocol |
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*/ |
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final String proto = protocol; |
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final NonProxyInfo nprop = pinfo; |
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final String urlhost = host.toLowerCase(); |
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/** |
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* This is one big doPrivileged call, but we're trying to optimize |
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* the code as much as possible. Since we're checking quite a few |
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* System properties it does help having only 1 call to doPrivileged. |
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* Be mindful what you do in here though! |
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*/ |
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Proxy p = AccessController.doPrivileged( |
200 |
new PrivilegedAction<Proxy>() { |
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public Proxy run() { |
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int i, j; |
203 |
String phost = null; |
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int pport = 0; |
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String nphosts = null; |
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InetSocketAddress saddr = null; |
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208 |
// Then let's walk the list of protocols in our array |
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for (i=0; i<props.length; i++) { |
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if (props[i][0].equalsIgnoreCase(proto)) { |
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for (j = 1; j < props[i].length; j++) { |
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/* System.getProp() will give us an empty |
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* String, "" for a defined but "empty" |
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* property. |
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*/ |
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phost = NetProperties.get(props[i][j]+"Host"); |
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217 |
if (phost != null && phost.length() != 0) |
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break; |
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} |
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if (phost == null || phost.length() == 0) { |
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/** |
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* No system property defined for that |
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* protocol. Let's check System Proxy |
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* settings (Gnome & Windows) if we were |
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* instructed to. |
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*/ |
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227 |
if (hasSystemProxies) { |
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String sproto; |
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if (proto.equalsIgnoreCase("socket")) |
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230 |
sproto = "socks"; |
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231 |
else |
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232 |
sproto = proto; |
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Proxy sproxy = getSystemProxy(sproto, urlhost); |
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234 |
if (sproxy != null) { |
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return sproxy; |
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236 |
} |
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237 |
} |
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238 |
return Proxy.NO_PROXY; |
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239 |
} |
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// If a Proxy Host is defined for that protocol |
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241 |
// Let's get the NonProxyHosts property |
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242 |
if (nprop != null) { |
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243 |
nphosts = NetProperties.get(nprop.property); |
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synchronized (nprop) { |
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if (nphosts == null) { |
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if (nprop.defaultVal != null) { |
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nphosts = nprop.defaultVal; |
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} else { |
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nprop.hostsSource = null; |
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nprop.hostsPool = null; |
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} |
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} |
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253 |
if (nphosts != null) { |
2 | 254 |
if (!nphosts.equals(nprop.hostsSource)) { |
255 |
RegexpPool pool = new RegexpPool(); |
|
256 |
StringTokenizer st = new StringTokenizer(nphosts, "|", false); |
|
257 |
try { |
|
258 |
while (st.hasMoreTokens()) { |
|
259 |
pool.add(st.nextToken().toLowerCase(), Boolean.TRUE); |
|
260 |
} |
|
261 |
} catch (sun.misc.REException ex) { |
|
262 |
} |
|
263 |
nprop.hostsPool = pool; |
|
264 |
nprop.hostsSource = nphosts; |
|
265 |
} |
|
266 |
} |
|
267 |
if (nprop.hostsPool != null && |
|
268 |
nprop.hostsPool.match(urlhost) != null) { |
|
269 |
return Proxy.NO_PROXY; |
|
270 |
} |
|
271 |
} |
|
272 |
} |
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273 |
// We got a host, let's check for port |
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274 |
||
275 |
pport = NetProperties.getInteger(props[i][j]+"Port", 0).intValue(); |
|
276 |
if (pport == 0 && j < (props[i].length - 1)) { |
|
277 |
// Can't find a port with same prefix as Host |
|
278 |
// AND it's not a SOCKS proxy |
|
279 |
// Let's try the other prefixes for that proto |
|
280 |
for (int k = 1; k < (props[i].length - 1); k++) { |
|
281 |
if ((k != j) && (pport == 0)) |
|
282 |
pport = NetProperties.getInteger(props[i][k]+"Port", 0).intValue(); |
|
283 |
} |
|
284 |
} |
|
285 |
||
286 |
// Still couldn't find a port, let's use default |
|
287 |
if (pport == 0) { |
|
288 |
if (j == (props[i].length - 1)) // SOCKS |
|
289 |
pport = defaultPort("socket"); |
|
290 |
else |
|
291 |
pport = defaultPort(proto); |
|
292 |
} |
|
293 |
// We did find a proxy definition. |
|
294 |
// Let's create the address, but don't resolve it |
|
295 |
// as this will be done at connection time |
|
296 |
saddr = InetSocketAddress.createUnresolved(phost, pport); |
|
297 |
// Socks is *always* the last on the list. |
|
298 |
if (j == (props[i].length - 1)) { |
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int version = NetProperties.getInteger(SOCKS_PROXY_VERSION, 5).intValue(); |
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return SocksProxy.create(saddr, version); |
2 | 301 |
} else { |
302 |
return new Proxy(Proxy.Type.HTTP, saddr); |
|
303 |
} |
|
304 |
} |
|
305 |
} |
|
306 |
return Proxy.NO_PROXY; |
|
307 |
}}); |
|
308 |
||
309 |
proxyl.add(p); |
|
310 |
||
311 |
/* |
|
312 |
* If no specific property was set for that URI, we should be |
|
313 |
* returning an iterator to an empty List. |
|
314 |
*/ |
|
315 |
return proxyl; |
|
316 |
} |
|
317 |
||
318 |
public void connectFailed(URI uri, SocketAddress sa, IOException ioe) { |
|
319 |
if (uri == null || sa == null || ioe == null) { |
|
320 |
throw new IllegalArgumentException("Arguments can't be null."); |
|
321 |
} |
|
322 |
// ignored |
|
323 |
} |
|
324 |
||
325 |
||
326 |
private int defaultPort(String protocol) { |
|
327 |
if ("http".equalsIgnoreCase(protocol)) { |
|
328 |
return 80; |
|
329 |
} else if ("https".equalsIgnoreCase(protocol)) { |
|
330 |
return 443; |
|
331 |
} else if ("ftp".equalsIgnoreCase(protocol)) { |
|
332 |
return 80; |
|
333 |
} else if ("socket".equalsIgnoreCase(protocol)) { |
|
334 |
return 1080; |
|
335 |
} else if ("gopher".equalsIgnoreCase(protocol)) { |
|
336 |
return 80; |
|
337 |
} else { |
|
338 |
return -1; |
|
339 |
} |
|
340 |
} |
|
341 |
||
342 |
private native static boolean init(); |
|
343 |
private native Proxy getSystemProxy(String protocol, String host); |
|
344 |
} |