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module ControllerExtension::Authentication
extend ActiveSupport::Concern
private
included do
helper_method :current_user, :logged_in?, :admin?
end
def authentication_errors
return unless attempted_login?
errors = get_warden_errors
#default response to get_warden_errors is not an enumerable, so won't work if default is used
errors.inject({}) do |translated,err|
translated[err.first] = I18n.t(err.last)
translated
end
end
def get_warden_errors
if strategy = warden.winning_strategy
strategy.message
else
{ login: :all_strategies_failed }
end
end
def attempted_login?
request.env['warden.options'] &&
request.env['warden.options'][:attempted_path]
end
def logged_in?
!!current_user
end
def authorize
access_denied unless logged_in?
end
def access_denied
respond_to do |format|
format.html do
if logged_in?
redirect_to root_url, :alert => t(:not_authorized)
else
redirect_to login_url, :alert => t(:not_authorized_login)
end
end
format.json do
render :json => {'error' => t(:not_authorized)}, status: :unprocessable_entity
end
end
end
def admin?
current_user && current_user.is_admin?
end
def authorize_admin
access_denied unless admin?
end
end
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