| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package java.net; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.List; |
| |
| final class ProxySelectorImpl extends ProxySelector { |
| |
| @Override public void connectFailed(URI uri, SocketAddress sa, IOException ioe) { |
| if (uri == null || sa == null || ioe == null) { |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| @Override public List<Proxy> select(URI uri) { |
| return Collections.singletonList(selectOneProxy(uri)); |
| } |
| |
| private Proxy selectOneProxy(URI uri) { |
| if (uri == null) { |
| throw new IllegalArgumentException("uri == null"); |
| } |
| String scheme = uri.getScheme(); |
| if (scheme == null) { |
| throw new IllegalArgumentException("scheme == null"); |
| } |
| |
| int port = -1; |
| Proxy proxy = null; |
| String nonProxyHostsKey = null; |
| boolean httpProxyOkay = true; |
| if ("http".equalsIgnoreCase(scheme)) { |
| port = 80; |
| nonProxyHostsKey = "http.nonProxyHosts"; |
| proxy = lookupProxy("http.proxyHost", "http.proxyPort", Proxy.Type.HTTP, port); |
| } else if ("https".equalsIgnoreCase(scheme)) { |
| port = 443; |
| nonProxyHostsKey = "https.nonProxyHosts"; // RI doesn't support this |
| proxy = lookupProxy("https.proxyHost", "https.proxyPort", Proxy.Type.HTTP, port); |
| } else if ("ftp".equalsIgnoreCase(scheme)) { |
| port = 80; // not 21 as you might guess |
| nonProxyHostsKey = "ftp.nonProxyHosts"; |
| proxy = lookupProxy("ftp.proxyHost", "ftp.proxyPort", Proxy.Type.HTTP, port); |
| } else if ("socket".equalsIgnoreCase(scheme)) { |
| httpProxyOkay = false; |
| } else { |
| return Proxy.NO_PROXY; |
| } |
| |
| if (nonProxyHostsKey != null |
| && isNonProxyHost(uri.getHost(), System.getProperty(nonProxyHostsKey))) { |
| return Proxy.NO_PROXY; |
| } |
| |
| if (proxy != null) { |
| return proxy; |
| } |
| |
| if (httpProxyOkay) { |
| proxy = lookupProxy("proxyHost", "proxyPort", Proxy.Type.HTTP, port); |
| if (proxy != null) { |
| return proxy; |
| } |
| } |
| |
| proxy = lookupProxy("socksProxyHost", "socksProxyPort", Proxy.Type.SOCKS, 1080); |
| if (proxy != null) { |
| return proxy; |
| } |
| |
| return Proxy.NO_PROXY; |
| } |
| |
| /** |
| * Returns the proxy identified by the {@code hostKey} system property, or |
| * null. |
| */ |
| private Proxy lookupProxy(String hostKey, String portKey, Proxy.Type type, int defaultPort) { |
| String host = System.getProperty(hostKey); |
| if (host == null || host.isEmpty()) { |
| return null; |
| } |
| |
| int port = getSystemPropertyInt(portKey, defaultPort); |
| return new Proxy(type, InetSocketAddress.createUnresolved(host, port)); |
| } |
| |
| private int getSystemPropertyInt(String key, int defaultValue) { |
| String string = System.getProperty(key); |
| if (string != null) { |
| try { |
| return Integer.parseInt(string); |
| } catch (NumberFormatException ignored) { |
| } |
| } |
| return defaultValue; |
| } |
| |
| /** |
| * Returns true if the {@code nonProxyHosts} system property pattern exists |
| * and matches {@code host}. |
| */ |
| private boolean isNonProxyHost(String host, String nonProxyHosts) { |
| if (host == null || nonProxyHosts == null) { |
| return false; |
| } |
| |
| // construct pattern |
| StringBuilder patternBuilder = new StringBuilder(); |
| for (int i = 0; i < nonProxyHosts.length(); i++) { |
| char c = nonProxyHosts.charAt(i); |
| switch (c) { |
| case '.': |
| patternBuilder.append("\\."); |
| break; |
| case '*': |
| patternBuilder.append(".*"); |
| break; |
| default: |
| patternBuilder.append(c); |
| } |
| } |
| // check whether the host is the nonProxyHosts. |
| String pattern = patternBuilder.toString(); |
| return host.matches(pattern); |
| } |
| } |