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The Async Http Client (AHC) classes.

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/*
 *    Copyright (c) 2015-2023 AsyncHttpClient Project. All rights reserved.
 *
 *    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 org.asynchttpclient.netty.handler.intercept;

import io.netty.channel.Channel;
import io.netty.util.concurrent.Future;
import org.asynchttpclient.Request;
import org.asynchttpclient.netty.NettyResponseFuture;
import org.asynchttpclient.netty.channel.ChannelManager;
import org.asynchttpclient.netty.request.NettyRequestSender;
import org.asynchttpclient.proxy.ProxyServer;
import org.asynchttpclient.uri.Uri;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ConnectSuccessInterceptor {

    private static final Logger LOGGER = LoggerFactory.getLogger(ConnectSuccessInterceptor.class);

    private final ChannelManager channelManager;
    private final NettyRequestSender requestSender;

    ConnectSuccessInterceptor(ChannelManager channelManager, NettyRequestSender requestSender) {
        this.channelManager = channelManager;
        this.requestSender = requestSender;
    }

    public boolean exitAfterHandlingConnect(Channel channel, NettyResponseFuture future, Request request, ProxyServer proxyServer) {
        if (future.isKeepAlive()) {
            future.attachChannel(channel, true);
        }

        Uri requestUri = request.getUri();
        LOGGER.debug("Connecting to proxy {} for scheme {}", proxyServer, requestUri.getScheme());
        final Future whenHandshaked = channelManager.updatePipelineForHttpTunneling(channel.pipeline(), requestUri);
        future.setReuseChannel(true);
        future.setConnectAllowed(false);

        Request targetRequest = future.getTargetRequest().toBuilder().build();
        if (whenHandshaked == null) {
            requestSender.drainChannelAndExecuteNextRequest(channel, future, targetRequest);
        } else {
            requestSender.drainChannelAndExecuteNextRequest(channel, future, targetRequest, whenHandshaked);
        }

        return true;
    }
}