How to log in through classmates?

Question

Ruby on Rails

gemfile

gem 'rails', '4.2.5'
gem 'devise', '3.5.1'
gem 'omniauth-odnoklassniki'

I registered the application, I received an email:
config/initializers/devise.rb

...
  config.omniauth :odnoklassniki,
            Rails.application.secrets.odnoklassniki_app_id,
            Rails.application.secrets.odnoklassniki_app_secret
...

secrets.yml

odnoklassniki_app_id: '1xxxxxxxxx8' пробовал еще CxxxxxxxxA
  odnoklassniki_app_secret: BxxxxxxxxxxxxxxxxxB

I click on the site Login. Goes to the Odnoklassniki page. It asks to enter a password, and then:
Invalid credentials, if odnoklassniki_app_id: '1xxxxxxxxx8'
and

if odnoklassniki_app_id: CxxxxxxxxA
Hmm, in general, it does not enter through the device. VK, Twitter are already set up, but Odnoklassniki do not want
In the documentation:

use OmniAuth::Builder do
  provider :odnoklassniki, ENV['APP_ID'], ENV['APP_SECRET_KEY'], :public_key => ENV['APP_PUBLIC_KEY'],
    :scope => 'VALUABLE_ACCESS'
end

Those. it seems like you need to specify three parameters, but in the device only 2. How to be?

Answer 1

/config/initializers/odnoklassniki.rb:

# Fix Odnoklassniki OAuth gem via
# https://github.com/incubus/omniauth-odnoklassniki/issues/10

OmniAuth::Strategies::Odnoklassniki.class_eval do
  def callback_url
    options.redirect_url || (full_host + script_name + callback_path)
  end
end

config.omniauth :odnoklassniki,
            Rails.application.secrets.odnoklassniki_app_id,
            Rails.application.secrets.odnoklassniki_app_secret,
            :public_key => Rails.application.secrets.odnoklassniki_app_public

odnoklassniki_app_id: '1xxxxxxx8'
  odnoklassniki_app_public: CxxxxxxxxxxxxxA
  odnoklassniki_app_secret: BxxxxxxxxxxxxxxxxxxxxB