92 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			92 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| 
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| module TwoFactorAuthenticationConcern
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|   extend ActiveSupport::Concern
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| 
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|   included do
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|     prepend_before_action :authenticate_with_two_factor, if: :two_factor_enabled?, only: [:create]
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|   end
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| 
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|   def two_factor_enabled?
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|     find_user&.two_factor_enabled?
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|   end
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| 
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|   def valid_webauthn_credential?(user, webauthn_credential)
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|     user_credential = user.webauthn_credentials.find_by!(external_id: webauthn_credential.id)
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| 
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|     begin
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|       webauthn_credential.verify(
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|         session[:webauthn_challenge],
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|         public_key: user_credential.public_key,
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|         sign_count: user_credential.sign_count
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|       )
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| 
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|       user_credential.update!(sign_count: webauthn_credential.sign_count)
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|     rescue WebAuthn::Error
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|       false
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|     end
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|   end
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| 
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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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| 
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|   def authenticate_with_two_factor
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|     if user_params[:email].present?
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|       user = self.resource = find_user_from_params
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|       prompt_for_two_factor(user) if user&.external_or_valid_password?(user_params[:password])
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|     elsif session[:attempt_user_id]
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|       user = self.resource = User.find_by(id: session[:attempt_user_id])
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|       return if user.nil?
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| 
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|       if session[:attempt_user_updated_at] != user.updated_at.to_s
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|         restart_session
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|       elsif user.webauthn_enabled? && user_params.key?(:credential)
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|         authenticate_with_two_factor_via_webauthn(user)
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|       elsif user_params.key?(:otp_attempt)
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|         authenticate_with_two_factor_via_otp(user)
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|       end
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|     end
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|   end
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| 
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|   def authenticate_with_two_factor_via_webauthn(user)
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|     webauthn_credential = WebAuthn::Credential.from_get(user_params[:credential])
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| 
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|     if valid_webauthn_credential?(user, webauthn_credential)
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|       on_authentication_success(user, :webauthn)
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|       render json: { redirect_path: after_sign_in_path_for(user) }, status: :ok
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|     else
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|       on_authentication_failure(user, :webauthn, :invalid_credential)
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|       render json: { error: t('webauthn_credentials.invalid_credential') }, status: :unprocessable_entity
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|     end
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|   end
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| 
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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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|       on_authentication_success(user, :otp)
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|     else
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|       on_authentication_failure(user, :otp, :invalid_otp_token)
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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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| 
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|   def prompt_for_two_factor(user)
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|     set_attempt_session(user)
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| 
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|     @body_classes     = 'lighter'
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|     @webauthn_enabled = user.webauthn_enabled?
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|     @scheme_type      = begin
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|       if user.webauthn_enabled? && user_params[:otp_attempt].blank?
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|         'webauthn'
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|       else
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|         'totp'
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|       end
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|     end
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| 
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|     set_locale { render :two_factor }
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|   end
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| end
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