325 lines
11 KiB
Java
325 lines
11 KiB
Java
/*
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* Copyright (c) 1997, 2013, 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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package com.sun.istack.internal.tools;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.UnsupportedEncodingException;
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import java.lang.reflect.Field;
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import java.net.Authenticator;
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import java.net.Authenticator.RequestorType;
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import java.net.MalformedURLException;
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import java.net.PasswordAuthentication;
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import java.net.URL;
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import java.net.URLDecoder;
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import java.net.URLEncoder;
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import java.security.AccessController;
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import java.security.PrivilegedAction;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import java.util.regex.Pattern;
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import org.xml.sax.Locator;
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import org.xml.sax.helpers.LocatorImpl;
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/**
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* @author Vivek Pandey
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* @author Lukas Jungmann
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*/
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public class DefaultAuthenticator extends Authenticator {
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private static DefaultAuthenticator instance;
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private static Authenticator systemAuthenticator = getCurrentAuthenticator();
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private String proxyUser;
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private String proxyPasswd;
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private final List<AuthInfo> authInfo = new ArrayList<AuthInfo>();
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private static int counter = 0;
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DefaultAuthenticator() {
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//try undocumented but often used properties
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if (System.getProperty("http.proxyUser") != null) {
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proxyUser = System.getProperty("http.proxyUser");
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} else {
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proxyUser = System.getProperty("proxyUser");
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}
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if (System.getProperty("http.proxyPassword") != null) {
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proxyPasswd = System.getProperty("http.proxyPassword");
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} else {
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proxyPasswd = System.getProperty("proxyPassword");
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}
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}
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public static synchronized DefaultAuthenticator getAuthenticator() {
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if (instance == null) {
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instance = new DefaultAuthenticator();
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Authenticator.setDefault(instance);
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}
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counter++;
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return instance;
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}
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public static synchronized void reset() {
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--counter;
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if (instance != null && counter == 0) {
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Authenticator.setDefault(systemAuthenticator);
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}
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}
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@Override
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protected PasswordAuthentication getPasswordAuthentication() {
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//If user sets proxy user and passwd and the RequestType is from proxy server then create
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// PasswordAuthentication using proxyUser and proxyPasswd;
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if ((getRequestorType() == RequestorType.PROXY) && proxyUser != null && proxyPasswd != null) {
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return new PasswordAuthentication(proxyUser, proxyPasswd.toCharArray());
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}
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for (AuthInfo auth : authInfo) {
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if (auth.matchingHost(getRequestingURL())) {
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return new PasswordAuthentication(auth.getUser(), auth.getPassword().toCharArray());
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}
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}
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return null;
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}
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/**
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* Proxy authorization string in form of username:password.
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*
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* @param proxyAuth
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*/
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public void setProxyAuth(String proxyAuth) {
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if (proxyAuth == null) {
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this.proxyUser = null;
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this.proxyPasswd = null;
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} else {
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int i = proxyAuth.indexOf(':');
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if (i < 0) {
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this.proxyUser = proxyAuth;
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this.proxyPasswd = "";
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} else if (i == 0) {
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this.proxyUser = "";
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this.proxyPasswd = proxyAuth.substring(1);
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} else {
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this.proxyUser = proxyAuth.substring(0, i);
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this.proxyPasswd = proxyAuth.substring(i + 1);
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}
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}
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}
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public void setAuth(File f, Receiver l) {
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Receiver listener = l == null ? new DefaultRImpl() : l;
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BufferedReader in = null;
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FileInputStream fi = null;
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InputStreamReader is = null;
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try {
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String text;
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LocatorImpl locator = new LocatorImpl();
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locator.setSystemId(f.getAbsolutePath());
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try {
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fi = new FileInputStream(f);
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is = new InputStreamReader(fi, "UTF-8");
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in = new BufferedReader(is);
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} catch (UnsupportedEncodingException e) {
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listener.onError(e, locator);
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return;
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} catch (FileNotFoundException e) {
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listener.onError(e, locator);
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return;
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}
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try {
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int lineno = 1;
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locator.setSystemId(f.getCanonicalPath());
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while ((text = in.readLine()) != null) {
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locator.setLineNumber(lineno++);
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//ignore empty lines and treat those starting with '#' as comments
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if ("".equals(text.trim()) || text.startsWith("#")) {
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continue;
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}
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try {
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AuthInfo ai = parseLine(text);
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authInfo.add(ai);
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} catch (Exception e) {
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listener.onParsingError(text, locator);
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}
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}
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} catch (IOException e) {
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listener.onError(e, locator);
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Logger.getLogger(DefaultAuthenticator.class.getName()).log(Level.SEVERE, e.getMessage(), e);
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}
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} finally {
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try {
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if (in != null) {
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in.close();
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}
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if (is != null) {
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is.close();
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}
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if (fi != null) {
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fi.close();
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}
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} catch (IOException ex) {
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Logger.getLogger(DefaultAuthenticator.class.getName()).log(Level.SEVERE, null, ex);
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}
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}
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}
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private AuthInfo parseLine(String text) throws Exception {
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URL url;
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try {
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url = new URL(text);
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} catch (MalformedURLException mue) {
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//possible cause of this can be that password contains
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//character which has to be encoded in URL,
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//such as '@', ')', '#' and few others
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//so try to recreate the URL with encoded string
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//between 2nd ':' and last '@'
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int i = text.indexOf(':', text.indexOf(':') + 1) + 1;
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int j = text.lastIndexOf('@');
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String encodedUrl =
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text.substring(0, i)
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+ URLEncoder.encode(text.substring(i, j), "UTF-8")
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+ text.substring(j);
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url = new URL(encodedUrl);
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}
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String authinfo = url.getUserInfo();
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if (authinfo != null) {
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int i = authinfo.indexOf(':');
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if (i >= 0) {
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String user = authinfo.substring(0, i);
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String password = authinfo.substring(i + 1);
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return new AuthInfo(
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new URL(url.getProtocol(), url.getHost(), url.getPort(), url.getFile()),
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user, URLDecoder.decode(password, "UTF-8"));
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}
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}
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throw new Exception();
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}
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static Authenticator getCurrentAuthenticator() {
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final Field f = getTheAuthenticator();
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if (f == null) {
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return null;
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}
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try {
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AccessController.doPrivileged(new PrivilegedAction<Void>() {
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@Override
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public Void run() {
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f.setAccessible(true);
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return null;
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}
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});
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return (Authenticator) f.get(null);
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} catch (Exception ex) {
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return null;
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} finally {
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AccessController.doPrivileged(new PrivilegedAction<Void>() {
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@Override
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public Void run() {
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f.setAccessible(false);
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return null;
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}
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});
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}
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}
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private static Field getTheAuthenticator() {
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try {
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return Authenticator.class.getDeclaredField("theAuthenticator");
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} catch (Exception ex) {
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return null;
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}
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}
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public static interface Receiver {
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void onParsingError(String line, Locator loc);
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void onError(Exception e, Locator loc);
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}
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private static class DefaultRImpl implements Receiver {
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@Override
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public void onParsingError(String line, Locator loc) {
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System.err.println(getLocationString(loc) + ": " + line);
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}
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@Override
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public void onError(Exception e, Locator loc) {
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System.err.println(getLocationString(loc) + ": " + e.getMessage());
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Logger.getLogger(DefaultAuthenticator.class.getName()).log(Level.SEVERE, e.getMessage(), e);
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}
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private String getLocationString(Locator l) {
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return "[" + l.getSystemId() + "#" + l.getLineNumber() + "]";
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}
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}
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/**
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* Represents authorization information needed by
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* {@link DefaultAuthenticator} to authenticate access to remote resources.
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*
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* @author Vivek Pandey
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* @author Lukas Jungmann
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*/
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final static class AuthInfo {
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private final String user;
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private final String password;
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private final Pattern urlPattern;
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public AuthInfo(URL url, String user, String password) {
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String u = url.toExternalForm().replaceFirst("\\?", "\\\\?");
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this.urlPattern = Pattern.compile(u.replace("*", ".*"), Pattern.CASE_INSENSITIVE);
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this.user = user;
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this.password = password;
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}
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public String getUser() {
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return user;
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}
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public String getPassword() {
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return password;
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}
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/**
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* Returns if the requesting host and port are associated with this
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* {@link AuthInfo}
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*/
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public boolean matchingHost(URL requestingURL) {
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return urlPattern.matcher(requestingURL.toExternalForm()).matches();
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}
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}
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}
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