| package org.eclipse.aether.util.repository; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.net.Authenticator; |
| import java.net.InetSocketAddress; |
| import java.net.PasswordAuthentication; |
| import java.net.SocketAddress; |
| import java.net.URI; |
| import java.net.URL; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.UUID; |
| |
| import org.eclipse.aether.repository.Authentication; |
| import org.eclipse.aether.repository.AuthenticationContext; |
| import org.eclipse.aether.repository.AuthenticationDigest; |
| import org.eclipse.aether.repository.Proxy; |
| import org.eclipse.aether.repository.ProxySelector; |
| import org.eclipse.aether.repository.RemoteRepository; |
| |
| /** |
| * A proxy selector that uses the {@link java.net.ProxySelector#getDefault() JRE's global proxy selector}. In |
| * combination with the system property {@code java.net.useSystemProxies}, this proxy selector can be employed to pick |
| * up the proxy configuration from the operating system, see <a |
| * href="http://docs.oracle.com/javase/6/docs/technotes/guides/net/proxies.html">Java Networking and Proxies</a> for |
| * details. The {@link java.net.Authenticator JRE's global authenticator} is used to look up credentials for a proxy |
| * when needed. |
| */ |
| public final class JreProxySelector |
| implements ProxySelector |
| { |
| |
| /** |
| * Creates a new proxy selector that delegates to {@link java.net.ProxySelector#getDefault()}. |
| */ |
| public JreProxySelector() |
| { |
| } |
| |
| public Proxy getProxy( RemoteRepository repository ) |
| { |
| List<java.net.Proxy> proxies = null; |
| try |
| { |
| URI uri = new URI( repository.getUrl() ).parseServerAuthority(); |
| proxies = java.net.ProxySelector.getDefault().select( uri ); |
| } |
| catch ( Exception e ) |
| { |
| // URL invalid or not accepted by selector or no selector at all, simply use no proxy |
| } |
| if ( proxies != null ) |
| { |
| for ( java.net.Proxy proxy : proxies ) |
| { |
| if ( java.net.Proxy.Type.DIRECT.equals( proxy.type() ) ) |
| { |
| break; |
| } |
| if ( java.net.Proxy.Type.HTTP.equals( proxy.type() ) && isValid( proxy.address() ) ) |
| { |
| InetSocketAddress addr = (InetSocketAddress) proxy.address(); |
| return new Proxy( Proxy.TYPE_HTTP, addr.getHostName(), addr.getPort(), |
| JreProxyAuthentication.INSTANCE ); |
| } |
| } |
| } |
| return null; |
| } |
| |
| private static boolean isValid( SocketAddress address ) |
| { |
| if ( address instanceof InetSocketAddress ) |
| { |
| /* |
| * NOTE: On some platforms with java.net.useSystemProxies=true, unconfigured proxies show up as proxy |
| * objects with empty host and port 0. |
| */ |
| InetSocketAddress addr = (InetSocketAddress) address; |
| if ( addr.getPort() <= 0 ) |
| { |
| return false; |
| } |
| if ( addr.getHostName() == null || addr.getHostName().length() <= 0 ) |
| { |
| return false; |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| private static final class JreProxyAuthentication |
| implements Authentication |
| { |
| |
| public static final Authentication INSTANCE = new JreProxyAuthentication(); |
| |
| public void fill( AuthenticationContext context, String key, Map<String, String> data ) |
| { |
| Proxy proxy = context.getProxy(); |
| if ( proxy == null ) |
| { |
| return; |
| } |
| if ( !AuthenticationContext.USERNAME.equals( key ) && !AuthenticationContext.PASSWORD.equals( key ) ) |
| { |
| return; |
| } |
| |
| try |
| { |
| URL url; |
| try |
| { |
| url = new URL( context.getRepository().getUrl() ); |
| } |
| catch ( Exception e ) |
| { |
| url = null; |
| } |
| |
| PasswordAuthentication auth = |
| Authenticator.requestPasswordAuthentication( proxy.getHost(), null, proxy.getPort(), "http", |
| "Credentials for proxy " + proxy, null, url, |
| Authenticator.RequestorType.PROXY ); |
| if ( auth != null ) |
| { |
| context.put( AuthenticationContext.USERNAME, auth.getUserName() ); |
| context.put( AuthenticationContext.PASSWORD, auth.getPassword() ); |
| } |
| else |
| { |
| context.put( AuthenticationContext.USERNAME, System.getProperty( "http.proxyUser" ) ); |
| context.put( AuthenticationContext.PASSWORD, System.getProperty( "http.proxyPassword" ) ); |
| } |
| } |
| catch ( SecurityException e ) |
| { |
| // oh well, let's hope the proxy can do without auth |
| } |
| } |
| |
| public void digest( AuthenticationDigest digest ) |
| { |
| // we don't know anything about the JRE's current authenticator, assume the worst (i.e. interactive) |
| digest.update( UUID.randomUUID().toString() ); |
| } |
| |
| @Override |
| public boolean equals( Object obj ) |
| { |
| return this == obj || ( obj != null && getClass().equals( obj.getClass() ) ); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return getClass().hashCode(); |
| } |
| |
| } |
| |
| } |