/*

 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package jdk.internal.net.http;

import java.net.URI;

import java.io.IOException;

import java.net.http.HttpClient;

import java.net.http.HttpHeaders;

import java.net.InetSocketAddress;

import javax.net.ssl.SSLEngine;

import javax.net.ssl.SSLSession;

import jdk.internal.net.http.common.Utils;

/**

 * Response headers and status code.

 */

class Response {

    final HttpHeaders headers;

    final int statusCode;

    final HttpRequestImpl request;

    final Exchange<?> exchange;

    final HttpClient.Version version;

    final boolean isConnectResponse;

    final SSLSession sslSession;

    final InetSocketAddress localAddress;

    Response(HttpRequestImpl req,

             Exchange<?> exchange,

             HttpHeaders headers,

             HttpConnection connection,

             int statusCode,

             HttpClient.Version version) {

        this(req, exchange, headers, connection, statusCode, version,

                "CONNECT".equalsIgnoreCase(req.method()));

    }

    Response(HttpRequestImpl req,

             Exchange<?> exchange,

             HttpHeaders headers,

             HttpConnection connection,

             int statusCode,

             HttpClient.Version version,

             boolean isConnectResponse) {

        this.headers = headers;

        this.request = req;

        this.version = version;

        this.exchange = exchange;

        this.statusCode = statusCode;

        this.isConnectResponse = isConnectResponse;

        if (connection != null) {

            InetSocketAddress a;

            try {

                a = (InetSocketAddress)connection.channel().getLocalAddress();

            } catch (IOException e) {

                a = null;

            }

            this.localAddress = a;

            if (connection instanceof AbstractAsyncSSLConnection) {

                AbstractAsyncSSLConnection cc = (AbstractAsyncSSLConnection)connection;

                SSLEngine engine = cc.getEngine();

                sslSession = Utils.immutableSession(engine.getSession());

            } else {

                sslSession = null;

            }

        } else {

            sslSession = null;

            localAddress = null;

        }

    }

    HttpRequestImpl request() {

        return request;

    }

    HttpClient.Version version() {

        return version;

    }

    HttpHeaders headers() {

        return headers;

    }

    int statusCode() {

        return statusCode;

    }

    SSLSession getSSLSession() {

        return sslSession;

    }

    @Override

    public String toString() {

        StringBuilder sb = new StringBuilder();

        String method = request().method();

        URI uri = request().uri();

        String uristring = uri == null ? "" : uri.toString();

        sb.append('(')

          .append(method)

          .append(" ")

          .append(uristring)

          .append(") ")

          .append(statusCode());

        sb.append(" ").append(version);

        if (localAddress != null)

            sb.append(" Local port:  ").append(localAddress.getPort());

        return sb.toString();

    }

}