nginx njs实现上传

· 1 min read

最近nginx有需求实现上传feat，惊喜发现已经支持js了，因此尝试使用js实现上传。

nginx配置

为了支持njs需要模块加载
具体使用js业务模块，需要使用js相关指令
load_module指令需要放在全局即default.conf下

例子如下

load_module modules/ngx_http_js_module.so;

events { }


http {

    # 这里就不再限制了，nginx默认为1MB
    client_max_body_size 0;

    js_path "/etc/nginx/njs/";

    js_import main from upload.js;

server {

   ...
    location /upload-cert {
        js_content main.resolve;
    }
   ...
}

njs模块业务代码

njs只是js子集，因此语法及功能也都是有限的

const fs = require('fs');
const crypto = require('crypto');
const dest = `/var/www/ssl`;

function writeFile(fileContent, fileSuffix) {
  let fileName = `${crypto.createHash('md5').update(fileContent).digest("hex")}.${fileSuffix || 'crt'}`;
  fs.writeFileSync(`${dest}/${fileName}`, fileContent);
  return fileName;
}

function upload(r) {
  let body = JSON.parse(r.requestBody);
  r.return(200, JSON.stringify({
    crtFileName: writeFile(body.crtFile), keyFileName: writeFile(body.keyFile, 'key'),
  }));
}

function main(r) {
    upload(r);
}

export default {resolve: main}

Last updated on Feb 17, 2022

nginx njs实现上传

nginx配置

njs模块业务代码

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