Social

Handler for social login via OAuth2 providers.

Usage

Register your application with callback URI pointing back to your site plus /auth/:provider/callback, and supply ClientID and ClientSecret in provider's configuration proplist. Ensure you started native erlang 'ssl' appication.

Then in your client-side code:

<a href="/auth/google/login">Auth via Google</a>

Router configuration

% Authorize via Google
{"/auth/google/:action", cowboy_social, [
  {provider, cowboy_social_google},
  % At the end of the flow this handler will be called as
  % Mod:Fun({ok, Auth, Profile}, Req, State) or Mod:Fun({error, Reason}, Req, State)
  {handler, {Mod, Fun}},
  {client_id, <<"...">>},
  {client_secret, <<"...">>},
  {scope, <<>>}, % additional permissions
  {callback_uri, <<"/auth/google/callback">>}
]}.

% In case of compliant provider we can just tune provider
{"/auth/good-provider/:action", cowboy_social, [
  {provider, cowboy_social_generic},
  {handler, {Mod, Fun}},
  {client_id, <<"...">>},
  {client_secret, <<"...">>},
  {scope, <<>>}, % additional permissions
  {callback_uri, <<"/auth/good-provider/callback">>},
  % tune generic provider
  {provider_name, <<"good-provider">>},
  {authorize_url, <<"https://good.provider.org/oauth2/authorize">>},
  {access_token_url, <<"https://good.provider.org/oauth2/access_token">>},
  {profile_url, <<"https://good.provider.org/profile">>}
]}.

Supported providers

• Facebook
• Generic one (no separate module required, just some parameters for the handler)
• Github
• Google
• Mail.ru
• PayPal
• Vkontakte
• Yandex
• add more, this is very simple

License (MIT)

Copyright (c) 2013 Vladimir Dronnikov dronnikov@gmail.com

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.