thinkphp 6.0 swoole扩展websocket的使用

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thinkphp 6.0 swoole扩展websocket使用教程(think-swoole)

前言

最新版本的TP-SWOOLE变化很大，该文所提供的方法已经无法使用，可以参考 https://github.com/xavieryang007/think-swoole-demo/blob/master/doc/%E6%96%87%E6%A1%A3/4.1-websocket.md

介绍

即将推出的tp6.0，已经适配swoole.并推出think-swoole 3.0，并且默认适配了socketio。和2.0版本在使用方法上面有些许不同。

Websocket 继承与Http，进行websocket连接之前需要一次HTTP请求，如果当期地址支持websocket则返回101，然后进行连接。也就是说并不是我的服务支持websocket后，请求每个连接地址都可以进行websocket连接，而是需要预先适配才可以连接。

参数配置

如果要使用websocket需要在配置中启用,将websocket下的enable设置为true

 'server'           => [
        'host'      => '0.0.0.0', // 监听地址
        'port'      => 808, // 监听端口
        'mode'      => SWOOLE_PROCESS, // 运行模式 默认为SWOOLE_PROCESS
        'sock_type' => SWOOLE_SOCK_TCP, // sock type 默认为SWOOLE_SOCK_TCP
        'options'   => [
            'pid_file'              => runtime_path() . 'swoole.pid',
            'log_file'              => runtime_path() . 'swoole.log',
            'daemonize'             => false,
            // Normally this value should be 1~4 times larger according to your cpu cores.
            'reactor_num'           => swoole_cpu_num(),
            'worker_num'            => swoole_cpu_num(),
            'task_worker_num'       => 4,//swoole_cpu_num(),
            'enable_static_handler' => true,
            'document_root'         => root_path('public'),
            'package_max_length'    => 20 * 1024 * 1024,
            'buffer_output_size'    => 10 * 1024 * 1024,
            'socket_buffer_size'    => 128 * 1024 * 1024,
            'max_request'           => 3000,
            'send_yield'            => true,
        ],
    ],
    'websocket'        => [
        'enabled'       => true,// 开启websocket
        'handler'       => Handler::class,  //自定义wbesocket绑定类
        'parser'        => Parser::class, //自定义解析类
        'route_file'    => base_path() . 'websocket.php',
        'ping_interval' => 25000,
        'ping_timeout'  => 60000,
        'room'          => [
            'type'        => TableRoom::class,
            'room_rows'   => 4096,
            'room_size'   => 2048,
            'client_rows' => 8192,
            'client_size' => 2048,
        ],
    ],
    'auto_reload'      => true,
    'enable_coroutine' => true,
    'resetters'        => [],
    'tables'           => [],

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handler和parser大大方便了自定义websocket服务，默认系统集成socketio。

本文主要介绍如何使用socketio，这里假设大家有socketio有一定了解和使用基础。

socketIo默认会在请求地址后加相应的参数

同时，socketio默认情况下，会认为 http://url/socket.io/ 是支持websocket服务的地址。

而在tp-swoole3.0内部已经对该地址请求进行了处理

<?php

namespace think\swoole\websocket\socketio;

use think\Config;
use think\Cookie;
use think\Request;

class Controller
{
    protected $transports = ['polling', 'websocket'];

    public function upgrade(Request $request, Config $config, Cookie $cookie)
    {
        if (!in_array($request->param('transport'), $this->transports)) {
            return json(
                [
                    'code'    => 0,
                    'message' => 'Transport unknown',
                ],
                400
            );
        }

        if ($request->has('sid')) {
            $response = response('1:6');
        } else {
            $sid     = base64_encode(uniqid());
            $payload = json_encode(
                [
                    'sid'          => $sid,
                    'upgrades'     => ['websocket'],
                    'pingInterval' => $config->get('swoole.websocket.ping_interval'),
                    'pingTimeout'  => $config->get('swoole.websocket.ping_timeout'),
                ]
            );
            $cookie->set('io', $sid);
            $response = response('97:0' . $payload . '2:40');
        }

        return $response->contentType('text/plain');
    }

    public function reject(Request $request)
    {
        return json(
            [
                'code'    => 3,
                'message' => 'Bad request',
            ],
            400
        );
    }
}

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TP6.0,插件注册采用了service方式进行了注册，可在tp-swoole 服务注册文件中查看路由注册信息,如果想自定义链接规则，则可以覆盖该路由。

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2018 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: yunwuxin <[email protected]>
// +----------------------------------------------------------------------

namespace think\swoole;

use Swoole\Http\Server as HttpServer;
use Swoole\Websocket\Server as WebsocketServer;
use think\App;
use think\Route;
use think\swoole\command\Server as ServerCommand;
use think\swoole\facade\Server;
use think\swoole\websocket\socketio\Controller;
use think\swoole\websocket\socketio\Middleware;

class Service extends \think\Service
{
    protected $isWebsocket = false;

    /**
     * @var HttpServer | WebsocketServer
     */
    protected static $server;

    public function register()
    {
        $this->isWebsocket = $this->app->config->get('swoole.websocket.enabled', false);

        $this->app->bind(Server::class, function () {
            if (is_null(static::$server)) {
                $this->createSwooleServer();
            }

            return static::$server;
        });

        $this->app->bind('swoole.server', Server::class);

        $this->app->bind(Swoole::class, function (App $app) {
            return new Swoole($app);
        });

        $this->app->bind('swoole', Swoole::class);
    }

    public function boot(Route $route)
    {
        $this->commands(ServerCommand::class);
        if ($this->isWebsocket) {
            $route->group(function () use ($route) {
                $route->get('socket.io/', '@upgrade');
                $route->post('socket.io/', '@reject');
            })->prefix(Controller::class)->middleware(Middleware::class);
        }
    }

    /**
     * Create swoole server.
     */
    protected function createSwooleServer()
    {
        $server     = $this->isWebsocket ? WebsocketServer::class : HttpServer::class;
        $config     = $this->app->config;
        $host       = $config->get('swoole.server.host');
        $port       = $config->get('swoole.server.port');
        $socketType = $config->get('swoole.server.socket_type', SWOOLE_SOCK_TCP);
        $mode       = $config->get('swoole.server.mode', SWOOLE_PROCESS);

        static::$server = new $server($host, $port, $mode, $socketType);

        $options = $config->get('swoole.server.options');

        static::$server->set($options);
    }
}

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Socketio默认使用demo

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="./static/js/socket.io.js"></script>
</head>
<body>
<script>
    const socket = io('http://localhost:808');
    socket.emit("test", "your message");
    socket.on("test",function(res){console.log(res)});
</script>
</body>
</html>

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Websocket路由配置方法

在app目录下新建websocket.php文件,其中需要注意，由于使用了反射，闭包参数名称不能随意定义，不然无法注入。第一个参数是websocket，是当前websocket的Server对象，第二个参数data是客户端发送的数据。其中socketio emit的第一个参数和Websocket::on的第一个参数一致，作为事件名称。

<?php
/**
 * Author:Xavier Yang
 * Date:2019/6/5
 * Email:[email protected]
 */

use \think\swoole\facade\Websocket;

Websocket::on("test", function (\think\swoole\Websocket $websocket, $data) {
    //var_dump($class);
    $websocket->emit("test", "asd");
});

Websocket::on("test1", function ($websocket, $data) {
    $websocket->emit("test", "asd");
});

Websocket::on("join", function (\think\swoole\Websocket $websocket, $data) {
    $websocket->join("1");
});

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参考如上方法即可使用全新的websocket服务。当然tp-swoole3.0同样还有许多其他的新功能，这些功能需要大家去摸索尝试。
我也会在接下来的文章中，一起与大家分享我的使用过程。

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