TrustedProxyRewriter

An Elixir plug to rewrite the value of remote_ip key of Plug.Conn struct if the request comes from a trusted proxy. It expects the header to contain only one ip address.

Installation

1. Add the plug to your list of dependencies in mix.exs:

```elixir
def deps do
  [
    {:trusted_proxy_rewriter, "~> 0.1.0"}
  ]
end
```

1. If you are using Phoenix Framework then put the plug in your application's endpoint lib\your_app\endpoint.ex:

```elixir
defmodule YourApp.Endpoint do
  ...
  plug TrustedProxyRewriter, proxies: ["192.168.0.1/32"], header: "x-real-ip"
  ...
  plug YourApp.Router
end
```

1. Configuration:

:proxies - list of trusted proxies
:header - name of the header with ip address

By default no proxy is trusted and the default header is x-real-ip

Changelog

0.1.0

Started using the InetCidr library so the proxy list has to be in full CIDR notation

Based on https://github.com/krzysztofmo/remote-ip-rewriter