Using a current OAuth server for authentication

@pier @transistor I’ve heard of people getting custom OAuth to work using the Microsoft Live service type and editing the .env as follows:

  1. Edit .env file and put the following options there and save it:

MS_LIVE_AUTH_URL=https://custom_auth_url;
MS_LIVE_TOKEN_URL=https://custom_token_url;
MS_LIVE_USER_URL=https://custom_user_url?access_token=

  1. Create an OAuth service using MS Live service type.

  2. After entering all the standard config information for this service, check the “Use custom OAuth 2.0 provider for this type” checkbox on the config tab and create the service.

There has been a feature request filed to add custom oauth service type in the future, no decisions made on implementation at time of writing.