o l>j=@s<ddlmZddlZddlZddlmZmZmZmZddl m Z ddl m Z ddlmZddlmZdd lmZmZdd lmZmZmZmZmZmZmZmZmZmZm Z m!Z!m"Z"m#Z#m$Z$m%Z%m&Z&m'Z'm(Z(m)Z)e*e+Z,eee-gdfZ.ee/ge0fZ1d(ddZ2d)ddZ3 d*d+ddZ4d,ddZ5d-d$d%Z6Gd&d'd'Z7dS).) annotationsN)AnyCallableMappingSequence)InvalidSignature) constant_time)CoseKey verify_rp_id)websafe_decodewebsafe_encode)AttestationConveyancePreferenceAttestationObjectAttestedCredentialDataAuthenticationResponseAuthenticatorAttachmentAuthenticatorDataAuthenticatorSelectionCriteriaCollectedClientDataCredentialCreationOptionsCredentialRequestOptions"PublicKeyCredentialCreationOptionsPublicKeyCredentialDescriptorPublicKeyCredentialParameters!PublicKeyCredentialRequestOptionsPublicKeyCredentialRpEntityPublicKeyCredentialTypePublicKeyCredentialUserEntityRegistrationResponseResidentKeyRequirementUserVerificationRequirementrp_idstrreturn VerifyOrigincs fddS)Ncs t|SNr )or#A/home/thesage/.local/lib/python3.10/site-packages/fido2/server.pyGs z'_verify_origin_for_rp..r*r)r*r)r+_verify_origin_for_rpFs r- challenge bytes | NonebytescCs@|dur td}|St|tstdt|dkrtd|S)N z)Custom challenge must be of type 'bytes'.z&Custom challenge length must be >= 16.)osurandom isinstancer0 TypeErrorlen ValueError)r.r*r*r+_validata_challengeJs   r9 credentialrrcCsttj|j|dS)aConverts an AttestedCredentialData to a PublicKeyCredentialDescriptor. :param credential: AttestedCredentialData containing the credential ID to use. :param transports: Optional list of AuthenticatorTransport strings to add to the descriptor. :return: A descriptor of the credential, for use with register_begin or authenticate_begin. :rtype: PublicKeyCredentialDescriptor )typeid transports)rr PUBLIC_KEY credential_id)r:r=r*r*r+ to_descriptorUs  r@credsGSequence[AttestedCredentialData | PublicKeyCredentialDescriptor] | None.Sequence[PublicKeyCredentialDescriptor] | NonecCs|durdSdd|DS)NcSs(g|]}t|tr t|nt|qSr*)r5rr@r from_dict).0cr*r*r+ ms  z%_wrap_credentials..r*)rAr*r*r+_wrap_credentialshs rHattestation_objectrclient_data_hashNonecCsdS)zIgnore attestation.Nr*)rIrJr*r*r+_ignore_attestationwsrLc@speZdZdZ   d-d.d d Z      d/d0ddZd1d d!Z    d2d3d#d$Zd4d(d)Ze d5d+d,Z dS)6 Fido2Servera@FIDO2 server. :param rp: Relying party data as `PublicKeyCredentialRpEntity` instance. :param attestation: (optional) Requirement on authenticator attestation. :param verify_origin: (optional) Alternative function to validate an origin. :param verify_attestation: (optional) function to validate attestation, which is invoked with attestation_object and client_data_hash. It should return nothing and raise an exception on failure. By default, attestation is ignored. Attestation is also ignored if `attestation` is set to `none`. Nrpr attestation&AttestationConveyancePreference | None verify_originVerifyOrigin | Noneverify_attestationVerifyAttestation | NonecCsrt||_|jjdusJ|pt|jj|_d|_t||_ddt D|_ |p,t |_ td|jdS)NcSsg|] }ttj|dqS))r;alg)rrr>)rErUr*r*r+rGs z(Fido2Server.__init__..z Fido2Server initialized for RP: )rrDrNr<r-_verifytimeoutrrOr supported_algorithmsallowed_algorithmsrL_verify_attestationloggerdebug)selfrNrOrQrSr*r*r+__init__s   zFido2Server.__init__userr credentialsrBresident_key_requirementResidentKeyRequirement | Noneuser_verification"UserVerificationRequirement | Noneauthenticator_attachmentAuthenticatorAttachment | Noner.r/r%%tuple[CredentialCreationOptions, Any]c Cs|jstdt|}t|}|||} tdddd|p gDtt |j t |||j|j |t|||frBt|||dnd|j|d d | fS) avReturn a PublicKeyCredentialCreationOptions registration object and the internal state dictionary that needs to be passed as is to the corresponding `register_complete` call. :param user: The dict containing the user data. :param credentials: The list of previously registered credentials, these can be of type AttestedCredentialData, or PublicKeyCredentialDescriptor. :param resident_key_requirement: The desired RESIDENT_KEY_REQUIREMENT level. :param user_verification: The desired USER_VERIFICATION level. :param authenticator_attachment: The desired AUTHENTICATOR_ATTACHMENT or None to not provide a preference (and get both types). :param challenge: A custom challenge to sign and verify or None to use OS-specific random bytes. :return: Registration data, internal state.z!Server has no allowed algorithms.z1Starting new registration, existing credentials: , cs|]}|jVqdSr'r<hexrEdr*r*r+ z-Fido2Server.register_begin..)re resident_keyrcN) rNr_r.pub_key_cred_paramsrWexclude_credentialsauthenticator_selectionrO extensions public_key)rYr8r9rH_make_internal_stater[r\joinrrrNrrDrWanyrrO) r]r_r`rarcrer.rt descriptorsstater*r*r+register_beginsH  zFido2Server.register_beginresponse(RegistrationResponse | Mapping[str, Any]rcCst|}|jj}|jj}|jtjjkrt d| |j s"t dt t|d|js1t dt |jjp8d|jjsAt d|jsJt d|dtjkrZ|jsZt d |jd tjfvrrtd |j|||j|j}|j d us|Jt!d |j j"#|S) a(Verify the correctness of the registration data received from the client. :param state: The state data returned by the corresponding `register_begin`. :param response: The registration response from the client. :return: The authenticator data &Incorrect type in CollectedClientData.&Invalid origin in CollectedClientData.r.Wrong challenge in response.Wrong RP ID hash in response.User Present flag not set.rcz;User verification required, but User Verified flag not set.NzVerifying attestation of type zNew credential registered: )$r rDr} client_datarIr;rTYPECREATEr8rVoriginrbytes_eqr r.rNid_hash auth_data rp_id_hashis_user_presentr"REQUIREDis_user_verifiedrOrNONEr[r\fmtrZhashcredential_datainfor?rk)r]r{r} registrationrrIrr*r*r+register_completesD    zFido2Server.register_complete$tuple[CredentialRequestOptions, Any]c Csrt|}t|}|||}|durtdntdddd|Dtt||j|j j |||dd|fS) aRReturn a PublicKeyCredentialRequestOptions assertion object and the internal state dictionary that needs to be passed as is to the corresponding `authenticate_complete` call. :param credentials: The list of previously registered credentials, these can be of type AttestedCredentialData, or PublicKeyCredentialDescriptor. :param user_verification: The desired USER_VERIFICATION level. :param challenge: A custom challenge to sign and verify or None to use OS-specific random bytes. :return: Assertion data, internal state.Nz/Starting new authentication without credentialsz.Starting new authentication, for credentials: rhcsrir'rjrlr*r*r+rn3roz1Fido2Server.authenticate_begin..)r.rWr#allow_credentialsrcrtru) r9rHrwr[r\rxrrrWrNr<)r]r`rcr.rtrzr{r*r*r+authenticate_begins,   zFido2Server.authenticate_begin Sequence[AttestedCredentialData]*AuthenticationResponse | Mapping[str, Any]rc Cs$t|}|j}|jj}|jj}|jj}|jtj j krt d| |j s)t dtt|d|js8t dt|jjp?d|jsGt d|sOt d|dtjkr^|s^t d |D]-} | j|krz | j||j|Wn ty~t d wtd | | Sq`t d ) aVerify the correctness of the assertion data received from the client. :param state: The state data returned by the corresponding `register_begin`. :param credentials: The list of previously registered credentials. :param credential_id: The credential id from the client response. :param client_data: The client data. :param auth_data: The authenticator data. :param signature: The signature provided by the client.rrr.rrrrrcz;User verification required, but user verified flag not set.zInvalid signature.zCredential authenticated: zUnknown credential ID.)!rrDraw_idr}rauthenticator_data signaturer;rrGETr8rVrrrr r.rNrrrr"rrr?rvverifyr_InvalidSignaturer[rrk) r]r{r`r}authenticationr?rrrcredr*r*r+authenticate_completeDsD    z!Fido2Server.authenticate_completer0cCst||dS)Nr.rc)rrr*r*r+rwzsz Fido2Server._make_internal_state)NNN)rNrrOrPrQrRrSrT)NNNNNN)r_rr`rBrarbrcrdrerfr.r/r%rg)r}r~r%r)NNNN)r`rBrcrdr.r/r%r)r`rr}rr%r)r.r0rcrd) __name__ __module__ __qualname____doc__r^r|rrr staticmethodrwr*r*r*r+rM}s,  D: ,6rM)r#r$r%r&)r.r/r%r0r')r:rr%r)rArBr%rC)rIrrJr0r%rK)8 __future__rloggingr3typingrrrrcryptography.exceptionsrrcryptography.hazmat.primitivesrcoser rpidr utilsr rwebauthnrrrrrrrrrrrrrrrrrr r!r" getLoggerrr[r0VerifyAttestationr$boolr&r-r9r@rHrLrMr*r*r*r+s(     X