82 lines
2.2 KiB
Ruby
82 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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require "webauthn/challenge_generator"
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require "webauthn/security_key_base_validation_service"
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require "webauthn/security_key_registration_service"
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require "webauthn/security_key_authentication_service"
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module DiscourseWebauthn
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ACCEPTABLE_REGISTRATION_TYPE = "webauthn.create"
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ACCEPTABLE_AUTHENTICATION_TYPE = "webauthn.get"
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# -7 - ES256
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# -257 - RS256 (Windows Hello supported alg.)
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SUPPORTED_ALGORITHMS = COSE::Algorithm.registered_algorithm_ids.freeze
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VALID_ATTESTATION_FORMATS = %w[none packed fido-u2f].freeze
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class SecurityKeyError < StandardError
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end
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class InvalidOriginError < SecurityKeyError
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end
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class InvalidRelyingPartyIdError < SecurityKeyError
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end
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class UserVerificationError < SecurityKeyError
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end
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class ChallengeMismatchError < SecurityKeyError
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end
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class InvalidTypeError < SecurityKeyError
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end
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class UnsupportedPublicKeyAlgorithmError < SecurityKeyError
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end
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class UnsupportedAttestationFormatError < SecurityKeyError
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end
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class CredentialIdInUseError < SecurityKeyError
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end
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class MalformedAttestationError < SecurityKeyError
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end
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class NotFoundError < SecurityKeyError
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end
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class OwnershipError < SecurityKeyError
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end
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class PublicKeyError < SecurityKeyError
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end
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class UnknownCOSEAlgorithmError < SecurityKeyError
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end
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##
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# Usage:
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#
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# These methods should be used in controllers where we
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# are challenging the user that has a security key, and
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# they must respond with a valid webauthn response and
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# credentials.
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def self.stage_challenge(user, secure_session)
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::DiscourseWebauthn::ChallengeGenerator.generate.commit_to_session(secure_session, user)
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end
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def self.allowed_credentials(user, secure_session)
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return {} if !user.security_keys_enabled?
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credential_ids = user.second_factor_security_key_credential_ids
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{
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allowed_credential_ids: credential_ids,
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challenge: secure_session[self.session_challenge_key(user)],
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}
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end
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def self.challenge(user, secure_session)
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secure_session[self.session_challenge_key(user)]
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end
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def self.rp_id
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Discourse.current_hostname
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end
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def self.rp_name
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SiteSetting.title
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end
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def self.session_challenge_key(user)
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"staged-webauthn-challenge-#{user&.id}"
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end
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end
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