Simple ReCaptcha display/verify code for Elixir applications. Using Exrecaptcha with a CMS such as Phoenix is easy.
Set as a dep in your mix.exs and ensure it is running with your app:
def application do
[
# ...
applications: [:phoenix, :cowboy, :logger, :exrecaptcha]
# ...
]
end
defp deps do
[
{:phoenix, "0.5.0"},
{:cowboy, "~> 1.0.0"},
#...
{:ibrowse, github: "cmullaparthi/ibrowse", tag: "v4.1.0"},
{:exrecaptcha, "~> 0.0.3"}
]
endAnd fetch your project's dependencies:
$ mix deps.getIn your application's config.exs :
config :exrecaptcha,
api_config: %{ verify_url: "http://www.google.com/recaptcha/api/verify",
public_key: "YOUR_PUBLIC_KEY",
private_key: "YOUR_PRIVATE_KEY" }You can use https instead of http for the verify_url.
Put this code somewhere in your html template:
<form id="loginForm" name="newuser" method="post" action="/users">
...
<%= safe Exrecaptcha.display %>
...
</form>Provided you've set the routing properly, you just have to call
# your post method should route you here:
def create(conn, params) do
# do stuff, then check for the validity of the captcha
:ok = verify_captcha(conn, params)
end
defp verify_captcha(conn, %{"recaptcha_challenge_field" => challenge,
"recaptcha_response_field" => response}) do
remote_ip = conn.remote_ip
Exrecaptcha.verify(remote_ip, challenge, response)
end##TODO
- No option for recaptcha display can be set yet
- Error handling is quite inexistent (throws RuntimeError)
- No tests
- 0.0.3: Update HTTPotion dependency, avoiding elixir version warnings
- 0.0.2: Use HTTPS by default
- 0.0.1: Initial release
Copyright © 2014 Adrien Anselme and contributors This work is free. You can redistribute it and/or modify it under the terms of the Do What The Fuck You Want To Public License, Version 2, as published by Sam Hocevar. See the COPYING file for more details.