【问题标题】:Nginx PHP websocket issuesNginx PHP websocket问题
【发布时间】:2016-03-30 09:24:24
【问题描述】:

我已经尝试让 nginx/php 中的 websockets 工作好几天了。

这是我目前的设置:

'Chat.php' 路径 = root/src/MyApp/Chat.php

<?php
namespace MyApp;
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;
class Chat implements MessageComponentInterface {
    protected $clients;
    public function __construct() {
        $this->clients = new \SplObjectStorage;
    }
    public function onOpen(ConnectionInterface $conn) {
    // Store the new connection to send messages to later
         $this->clients->attach($conn);
         echo "New connection! ({$conn->resourceId})\n";
    }
    public function onMessage(ConnectionInterface $from, $msg) {
        $numRecv = count($this->clients) - 1;
        echo sprintf('Connection %d sending message "%s" to %d other connection%s' . "\n"
        , $from->resourceId, $msg, $numRecv, $numRecv == 1 ? '' : 's');
        foreach ($this->clients as $client) {
             if ($from !== $client) {
            // The sender is not the receiver, send to each client connected
                $client->send($msg);
            }
        }
    }
    public function onClose(ConnectionInterface $conn) {
    // The connection is closed, remove it, as we can no longer send it messages
        $this->clients->detach($conn);
        echo "Connection {$conn->resourceId} has disconnected\n";
    }
    public function onError(ConnectionInterface $conn, \Exception $e) {
        echo "An error has occurred: {$e->getMessage()}\n";
        $conn->close();
    }
}

'chat-server.php' 路径 = root/bin/chat-server.php

<?php
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use MyApp\Chat;
    require dirname(__DIR__) . '/vendor/autoload.php';
    $server = IoServer::factory(
        new HttpServer(
            new WsServer(
                new Chat()
            )
        ),
        8080
    );
    $server->run();

Nginx 配置

 location / {
            access_log off;
            proxy_pass http://localhost:8080;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

            proxy_read_timeout 86400s;
            proxy_send_timeout 86400s;

            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
    }

使用棘轮示例。我可以让正常的 CLI 消息正常工作。如果我在浏览器中尝试,控制台会弹出这个错误:

到 'ws://localhost:8080/' 的 WebSocket 连接失败:连接建立错误:net::ERR_CONNECTION_REFUSED

当时服务器确实在运行。有什么想法吗?

【问题讨论】:

  • 我认为,Ratched 可以在没有 nginx 的情况下工作,我尝试在没有 nginx 的情况下进行调试,尝试检查端口是否打开(telnet localhost 8080)。没有nginx也可以(尝试在js中直接连接127.0.0.1和8080)?
  • 您在浏览器中收到错误“WebSocket connection to 'ws://localhost:8080/' failed”,这意味着客户端直接连接到棘轮(端口 8080)。是这样吗?显示用于连接的 js 代码

标签: php nginx websocket


【解决方案1】:

您必须使用以下方式从浏览器访问您的 websocket:

new WebSocket('ws://localhost/');

然后,Nginx 会将此请求(/ 上的任何请求)代理到您的 PHP websocket 实现正在侦听的 http://localhost:8080;... 希望

【讨论】:

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