135 lines
		
	
	
	
		
			3.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			135 lines
		
	
	
	
		
			3.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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class Auth::SessionsController < Devise::SessionsController
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  include Devise::Controllers::Rememberable
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  layout 'auth'
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  skip_before_action :require_no_authentication, only: [:create]
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  skip_before_action :require_functional!
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  prepend_before_action :authenticate_with_two_factor, if: :two_factor_enabled?, only: [:create]
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  before_action :set_instance_presenter, only: [:new]
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  before_action :set_body_classes
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  def new
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    Devise.omniauth_configs.each do |provider, config|
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      return redirect_to(omniauth_authorize_path(resource_name, provider)) if config.strategy.redirect_at_sign_in
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    end
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    super
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  end
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  def create
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    super do |resource|
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      remember_me(resource)
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      flash.delete(:notice)
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    end
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  end
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  def destroy
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    tmp_stored_location = stored_location_for(:user)
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    super
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    session.delete(:challenge_passed_at)
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    flash.delete(:notice)
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    store_location_for(:user, tmp_stored_location) if continue_after?
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  end
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  protected
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  def find_user
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    if session[:otp_user_id]
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      User.find(session[:otp_user_id])
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    else
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      user   = User.authenticate_with_ldap(user_params) if Devise.ldap_authentication
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      user ||= User.authenticate_with_pam(user_params) if Devise.pam_authentication
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      user ||= User.find_for_authentication(email: user_params[:email])
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    end
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  end
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  def user_params
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    params.require(:user).permit(:email, :password, :otp_attempt)
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  end
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  def after_sign_in_path_for(resource)
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    last_url = stored_location_for(:user)
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    if home_paths(resource).include?(last_url)
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      root_path
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    else
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      last_url || root_path
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    end
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  end
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  def after_sign_out_path_for(_resource_or_scope)
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    Devise.omniauth_configs.each_value do |config|
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      return root_path if config.strategy.redirect_at_sign_in
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    end
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    super
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  end
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  def two_factor_enabled?
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    find_user&.otp_required_for_login?
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  end
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  def valid_otp_attempt?(user)
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    user.validate_and_consume_otp!(user_params[:otp_attempt]) ||
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      user.invalidate_otp_backup_code!(user_params[:otp_attempt])
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  rescue OpenSSL::Cipher::CipherError
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    false
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  end
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  def authenticate_with_two_factor
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    user = self.resource = find_user
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    if user_params[:otp_attempt].present? && session[:otp_user_id]
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      authenticate_with_two_factor_via_otp(user)
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    elsif user.present? && (user.encrypted_password.blank? || user.valid_password?(user_params[:password]))
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      # If encrypted_password is blank, we got the user from LDAP or PAM,
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      # so credentials are already valid
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      prompt_for_two_factor(user)
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    end
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  end
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  def authenticate_with_two_factor_via_otp(user)
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    if valid_otp_attempt?(user)
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      session.delete(:otp_user_id)
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      remember_me(user)
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      sign_in(user)
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    else
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      flash.now[:alert] = I18n.t('users.invalid_otp_token')
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      prompt_for_two_factor(user)
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    end
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  end
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  def prompt_for_two_factor(user)
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    session[:otp_user_id] = user.id
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    @body_classes = 'lighter'
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    render :two_factor
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  end
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  private
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  def set_instance_presenter
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    @instance_presenter = InstancePresenter.new
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  end
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  def set_body_classes
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    @body_classes = 'lighter'
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  end
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  def home_paths(resource)
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    paths = [about_path]
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    if single_user_mode? && resource.is_a?(User)
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      paths << short_account_path(username: resource.account)
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    end
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    paths
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  end
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  def continue_after?
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    truthy_param?(:continue)
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  end
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end
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