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stwissel
Asked: 2014-08-22 01:21:34 +0800 CST

Reverse Proxy to filter out js files from multiple hosts in nginx

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I have a website http://someplace.acme.com that I want my users to access via http://myplace.mycorp.com - pretty standard reverse proxy setup.

The special requirement: any js file - either identified by the .js extension and/or the mime-type (if that is possible) text/javascript needs to be served from a different location, a local tool that inspects the js for potential threats.

So I have

location / {
  proxy_pass  http://someplace.acme.com;
  proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
  proxy_redirect off;
  proxy_buffering off;
  proxy_set_header        Host            $host;
  proxy_set_header        X-Real-IP       $remote_addr;
  proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
}

location ~* \.(js)$ {
  proxy_pass http://127.0.0.1:8188/filter?source=$1;
  proxy_redirect off;
  proxy_buffering off;
}

The JS still is served from remote and I have no idea how to check for the mime type. What do I miss?

nginx

1 Answers

  1. About first part of your question:

    Update your regular expression. I think you don't need parenthesis in case you have only one extension:

    location ~* ^.+\.js$ {
proxy_pass http://127.0.0.1:8188/filter?source=$1;
proxy_redirect off;
proxy_buffering off;
}
    • 1