support to proxy chain

[wisec]

I didn't find a way to set a proxy in mitm-proxy to have multiple proxies chain.
Something like

Browser -> Node-Http-Mitm-Proxy -> Internal Squid Proxy -> Internet

Is there any workaround?

[felicienfrancois]

The workaround is to set the agent to use for the request to the server

proxy.onRequest(function(ctx, cb) {
    ctx.proxyToServerRequestOptions.agent = proxyAgent;
});

You can create the proxyAgent using one of the agent implementation available on npmjs:
https://www.npmjs.com/search?q=proxy+agent

[mbrechet]

Hi, I've tried to use agent implementation but some proxy prevent CONNECT method on it, is there a way to just forward the original request to the proxy ?

[felicienfrancois]

I think CONNECT method is required for SSL through a proxy.
Even without node-http-mitm-proxy, you may not be able to browse an https website with your squid setup.
You have to enable CONNECT support in Squid
http://www.linuxquestions.org/questions/linux-networking-3/connect-method-is-not-allowed-when-using-squid-transparent-proxy-809047/

[mbrechet]

hi @felicienfrancois thanks for your answer.

My problem occurs behind a crop. porxy so I can't interract directly with it.

To bypass the problem I use request library.

[felicienfrancois]

OK. Thank you for your feedback.
https://github.com/request/request module handle proxy with this agent: https://github.com/request/tunnel-agent

So setting the agent to this one may works too ...

[mbrechet]

Ho, thanks

I'll try it, I'think it's the solution to support proxy chain

Thanks for your help

Regards

mbrechet