com.adaptris.core.management.ProxyAuthenticator.java Source code

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Here is the source code for com.adaptris.core.management.ProxyAuthenticator.java

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/*
 * Copyright 2015 Adaptris Ltd.
 * 
 * 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.adaptris.core.management;

import static com.adaptris.core.management.Constants.CFG_KEY_PROXY_AUTHENTICATOR;
import static org.apache.commons.lang.StringUtils.isEmpty;

import java.net.Authenticator.RequestorType;
import java.net.PasswordAuthentication;

import com.adaptris.core.http.ResourceAuthenticator;
import com.adaptris.core.http.auth.AdapterResourceAuthenticator;

final class ProxyAuthenticator {

    private static final String[] PROXY_USER_SYSPROPERTIES = { "http.proxyUser", "https.proxyUser", "proxyUser" };

    private static final String[] PROXY_PASSWORD_SYSPROPERTIES = { "http.proxyPassword", "https.proxyPassword",
            "proxyPass" };

    static void register(BootstrapProperties config) {
        if (!config.isEnabled(CFG_KEY_PROXY_AUTHENTICATOR)) {
            return;
        }
        String proxyPassword = getSystemProperty(PROXY_PASSWORD_SYSPROPERTIES);
        String proxyUser = getSystemProperty(PROXY_USER_SYSPROPERTIES);
        if (!isEmpty(proxyPassword) && !isEmpty(proxyUser)) {
            AdapterResourceAuthenticator.getInstance().addAuthenticator(
                    new ProxyAuth(new PasswordAuthentication(proxyUser, proxyPassword.toCharArray())));
        }
    }

    private static String getSystemProperty(String[] keys) {
        for (String key : keys) {
            if (System.getProperties().containsKey(key)) {
                return System.getProperty(key);
            }
        }
        return null;
    }

    private static class ProxyAuth implements ResourceAuthenticator {
        private PasswordAuthentication auth;

        ProxyAuth(PasswordAuthentication pw) {
            auth = pw;
        }

        @Override
        public PasswordAuthentication authenticate(ResourceTarget target) {
            if (target.getRequestorType().equals(RequestorType.PROXY)) {
                return auth;
            }
            return null;
        }
    }
}