forked from fedi/mastodon
91 lines
2.8 KiB
Ruby
91 lines
2.8 KiB
Ruby
# frozen_string_literal: true
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module TwoFactorAuthenticationConcern
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extend ActiveSupport::Concern
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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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def two_factor_enabled?
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find_user&.two_factor_enabled?
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end
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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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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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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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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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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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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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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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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: 200
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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: 422
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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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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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def prompt_for_two_factor(user)
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register_attempt_in_session(user)
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@body_classes = 'lighter'
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@webauthn_enabled = user.webauthn_enabled?
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@scheme_type = 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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set_locale { render :two_factor }
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end
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end
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