com.squareup.okhttp.internal.http.AuthenticatorAdapter.java Source code

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Here is the source code for com.squareup.okhttp.internal.http.AuthenticatorAdapter.java

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/*
 * Copyright (C) 2013 Square, Inc.
 *
 * 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.squareup.okhttp.internal.http;

import com.squareup.okhttp.Authenticator;
import com.squareup.okhttp.Challenge;
import com.squareup.okhttp.Credentials;
import com.squareup.okhttp.HttpUrl;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.Response;
import java.io.IOException;
import java.net.Authenticator.RequestorType;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.PasswordAuthentication;
import java.net.Proxy;
import java.util.List;

/** Adapts {@link java.net.Authenticator} to {@link com.squareup.okhttp.Authenticator}. */
public final class AuthenticatorAdapter implements Authenticator {
    /** Uses the global authenticator to get the password. */
    public static final Authenticator INSTANCE = new AuthenticatorAdapter();

    @Override
    public Request authenticate(Proxy proxy, Response response) throws IOException {
        List<Challenge> challenges = response.challenges();
        Request request = response.request();
        HttpUrl url = request.httpUrl();
        for (int i = 0, size = challenges.size(); i < size; i++) {
            Challenge challenge = challenges.get(i);
            if (!"Basic".equalsIgnoreCase(challenge.getScheme()))
                continue;

            PasswordAuthentication auth = java.net.Authenticator.requestPasswordAuthentication(url.host(),
                    getConnectToInetAddress(proxy, url), url.port(), url.scheme(), challenge.getRealm(),
                    challenge.getScheme(), url.url(), RequestorType.SERVER);
            if (auth == null)
                continue;

            String credential = Credentials.basic(auth.getUserName(), new String(auth.getPassword()));
            return request.newBuilder().header("Authorization", credential).build();
        }
        return null;

    }

    @Override
    public Request authenticateProxy(Proxy proxy, Response response) throws IOException {
        List<Challenge> challenges = response.challenges();
        Request request = response.request();
        HttpUrl url = request.httpUrl();
        for (int i = 0, size = challenges.size(); i < size; i++) {
            Challenge challenge = challenges.get(i);
            if (!"Basic".equalsIgnoreCase(challenge.getScheme()))
                continue;

            InetSocketAddress proxyAddress = (InetSocketAddress) proxy.address();
            PasswordAuthentication auth = java.net.Authenticator.requestPasswordAuthentication(
                    proxyAddress.getHostName(), getConnectToInetAddress(proxy, url), proxyAddress.getPort(),
                    url.scheme(), challenge.getRealm(), challenge.getScheme(), url.url(), RequestorType.PROXY);
            if (auth == null)
                continue;

            String credential = Credentials.basic(auth.getUserName(), new String(auth.getPassword()));
            return request.newBuilder().header("Proxy-Authorization", credential).build();
        }
        return null;
    }

    private InetAddress getConnectToInetAddress(Proxy proxy, HttpUrl url) throws IOException {
        return (proxy != null && proxy.type() != Proxy.Type.DIRECT)
                ? ((InetSocketAddress) proxy.address()).getAddress()
                : InetAddress.getByName(url.host());
    }
}