[PHP知识库]Yii2在代理转发时获取客户端真实IP

www.test.com由node来处理，api.test.com由yii2处理，遇到www.test.com/api这种url通过代理转发给api.test.com处理

使用node作为中间层进行代理转发

var app = express();

var proxy = require('express-http-proxy');
app.use('/api', proxy('api.test.com',{
    proxyReqOptDecorator: function(proxyReqOpts, srcReq) {
        return new Promise(function(resolve, reject) {
            proxyReqOpts.headers['X-Forwarded-For'] = srcReq.ip;
            resolve(proxyReqOpts);
        })
    }
}));

Yii2 main.php配置文件

    'components' => [
        'request' => [
            'cookieValidationKey' => '',
            'enableCsrfValidation' => false,
            'enableCsrfCookie' => false,
            'enableCookieValidation' => false,
            'baseUrl' => '/',
            'parsers' => [
                'application/json' => 'yii\web\JsonParser',
            ],
            'trustedHosts' => [
                '192.168.1.29',//node的主机地址，必须设置;
                //'*',//允许所有
            ],
            'ipHeaders' => [
                'X-Forwarded-For',
            ],
        ],
]

srcReq.ip为原客户端IP，通过request.headers设置X-Forwarded-For传给Yii2