Class: GoogleClientController

Inherits:
ApplicationController
  • Object
show all
Defined in:
app/controllers/google_client_controller.rb

Constant Summary collapse

DEFAULT_PARAMS =

parameters required in both OAuth steps

{
  :client_id => Rails.application.config.google_client.client_id
}

Instance Method Summary collapse

Instance Method Details

#index ⇒ Object

OAuth step1: redirect to Google endpoint with the application idenfitifer and the redirect uri



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# File 'app/controllers/google_client_controller.rb', line 10

def index
  _params = {
    :redirect_uri    => Rails.application.config.google_client.redirect_uri,
    :response_type   => "code",
    :scope           => Rails.application.config.google_client.scope,
    :access_type     => Rails.application.config.google_client.access_type.nil? ? "online" : Rails.application.config.google_client.access_type,
    #:approval_prompt => Rails.application.config.google_client.approval_prompt.nil? ? "force" : Rails.application.config.google_client.approval_prompt
  }
  _params.merge!(DEFAULT_PARAMS)
  
  redirect_to connection.create_uri("/o/oauth2/auth", _params).to_s
end

#oauth2callback ⇒ Object

OAuth step2: retrieve the code from Google, ask for a valid access token and forward to the user defined uri



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# File 'app/controllers/google_client_controller.rb', line 25

def oauth2callback
  # This code is retrieved from Google

  _params = {
    :redirect_uri  => Rails.application.config.google_client.redirect_uri,
    :client_secret => Rails.application.config.google_client.client_secret,
    :grant_type    => "authorization_code",
    :code          => params[:code]
  }

  _params.merge!(DEFAULT_PARAMS)

  response = connection.post "/o/oauth2/token", _params
  
  if response.code.to_s.eql?("200")
    response = ActiveSupport::JSON.decode(response.body)

    if Rails.application.config.google_client.forward_action.nil? or !Rails.application.config.google_client.forward_action.is_a?(String)
      raise GoogleClient::Error.new("Invalid forward_action value")
    end

    url = Rails.application.config.google_client.forward_action.split("#")

    url.length == 2 or raise GoogleClient::Error.new("Invalid forward_action value")

    @data = response

    redirect_to ({
      :controller => url.first,
      :action => url.last,
      :access_token => response["access_token"],
      :token_type => response["token_type"],
      :expires_in => response["expires_in"],
      :refresh_token => response["refresh_token"]
    })

  else
    logger.error "Error #{response.code} while accessing to Google #{response.body}"
    raise RuntimeError, "Unable to access to Google"
  end
end

#show ⇒ Object 



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# File 'app/controllers/google_client_controller.rb', line 67

def show
  @data = {:access_token => params[:access_token], 
            :token_type => params[:token_type],
            :expires_in => params[:expires_in],
            :refresh_token => params[:refresh_token]}
end