修改代理请求的标头

Question

我是IP限制纯客户端CORs演示应用程序,它与经过身份验证的第三方API交互.我有一个"中间件"服务器运行,我用它来代理从CORs应用程序到第三方API的请求,但我无法将基本身份验证凭据注入这些代理请求.

isAllowed = (req, res, next) -> # Do IP check here.

base64Encode = (unencoded) -> new Buffer(unencoded or '').toString 'base64'

app.all "/demoproxy/*", isAllowed, (req, res) ->

  req.url = "/" + req.url.split("/").slice(2).join("/")

  userPass = base64Encode "#{process.env.DEMO_USERNAME}:#{process.env.DEMO_PASSWORD}"

   # This doesn't work.
   # res.setHeader 'Authorization',  "Basic #{userPass}"

   # This doesn't work either.
   ###res.oldWriteHead = res.writeHead

   res.writeHead = (statusCode, headers) ->

     headers = { }
     headers['Authorization'] = "Basic #{userPass}"
     res.oldWriteHead statusCode, headers###

    proxy = new httpProxy.HttpProxy
      target:
        host: 'remote-api.com'
        port: 80

    proxy.proxyRequest req, res

这样做的正确方法是什么？

Answer 1

我想你想在这种情况下在请求(req)对象上设置授权头,而不是响应(res).如果remote-api.com需要进行身份验证,那么它需要知道您发送给它的请求.也许在提出proxy.proxyRequest请求之前尝试以下方法

req.headers["authorization"] = "Basic #{userPass}"

由于该req对象没有setHeader函数,headers属性只是一个javascript对象/ map.希望有助于......