ProxyAuthenticator.java

/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed 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 com.motorola.studio.android.common.proxy;

import java.net.PasswordAuthentication;
import java.net.URL;

import org.eclipse.core.internal.net.ProxyManager;
import org.eclipse.core.net.proxy.IProxyData;
import org.eclipse.core.net.proxy.IProxyService;
import org.eclipse.ui.internal.net.auth.NetAuthenticator;

/**
 * This class uses the Eclipse proxy settings for the JVM to be able to
 * access network without bothering the user with login/password dialogs.
 * If retrieving/setting Eclipse proxy settings to the JVM, the default
 * behavior will kick in (which is prompting the user).
 */
@SuppressWarnings("restriction")
public class ProxyAuthenticator extends NetAuthenticator
{

    /* (non-Javadoc)
     * @see org.eclipse.ui.internal.net.auth.NetAuthenticator#getPasswordAuthentication()
     */
    @Override
    protected PasswordAuthentication getPasswordAuthentication()
    {
        // return value
        PasswordAuthentication authentication = null;

        // retrieve Eclipse proxy settings
        IProxyService proxyService = ProxyManager.getProxyManager();

        IProxyData proxyData;

        // verify if the connection is https or http
        URL url = getRequestingURL();
        String urlStr = (url != null ? url.toString() : null);
        if ((urlStr != null) && (urlStr.length() > 0) && urlStr.startsWith("https"))
        {
            proxyData = proxyService.getProxyData(IProxyData.HTTPS_PROXY_TYPE);
        }
        else
        {
            proxyData = proxyService.getProxyData(IProxyData.HTTP_PROXY_TYPE);
        }

        // proxy data retrieved; return values
        if (proxyData != null)
        {
            String userId = proxyData.getUserId();
            if ((userId != null) && (userId.trim().length() > 0))
            {
                String password = proxyData.getPassword();
                authentication =
                        new PasswordAuthentication(userId,
                                (password == null ? "" : password).toCharArray());
            }
        }

        // if setting Eclipse proxy fails, let the superclass open the user/password prompt dialog
        if (authentication == null)
        {
            authentication = super.getPasswordAuthentication();
        }

        return authentication;
    }
}