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U [ ^8 � @ s� d Z ddlZddlZddlZddlZddlmZ ddlZddl Z ddl Z ddl m Z e� e�ZG dd� dej�ZG dd� dej�ZG d d � d e�ZG d d � d e�ZG d d� de�Ze �ej�G dd� de��ZejG dd� de��ZejG dd� de��ZejG dd� de��Z ejG dd� de��Z ejG dd� de��Z ejG dd � d e��Z ejG d d � d e��Z ejG d d � d e��Z!dS )!z&ACME Identifier Validation Challenges.� N)�hashes)�fieldsc s( e Zd ZdZi Ze� fdd��Z� ZS )� ChallengezACME challenge.c sT zt t| ��|�W S tjk rN } z t�|� t�|� W Y �S d }~X Y nX d S �N)�superr � from_json�joseZUnrecognizedTypeError�logger�debug�UnrecognizedChallenge)�cls�jobj�error�� __class__� �1/usr/lib/python3/dist-packages/acme/challenges.pyr s zChallenge.from_json)�__name__� __module__� __qualname__�__doc__�TYPES� classmethodr � __classcell__r r r r r s r c @ s" e Zd ZdZi ZdZe�e�ZdS )�ChallengeResponsezACME challenge response.Z challengeN) r r r r r Z resource_typer ZResource�resourcer r r r r s r c s4 e Zd ZdZ� fdd�Zdd� Zedd� �Z� ZS )r al Unrecognized challenge. ACME specification defines a generic framework for challenges and defines some standard challenges that are implemented in this module. However, other implementations (including peers) might define additional challenge types, which should be ignored if unrecognized. :ivar jobj: Original JSON decoded object. c s t t| ��� t�| d|� d S )Nr )r r �__init__�object� __setattr__��selfr r r r r 4 s z UnrecognizedChallenge.__init__c C s | j S r )r �r r r r �to_partial_json8 s z%UnrecognizedChallenge.to_partial_jsonc C s | |�S r r )r r r r r r ; s z UnrecognizedChallenge.from_json) r r r r r r" r r r r r r r r ' s r c @ s@ e Zd ZdZdZejdejej ej edd�d�Z e dd� �Z d S ) �_TokenChallengez3Challenge with token. :ivar bytes token: g 0@�tokenT)�sizeZminimum)�encoder�decoderc C s d| j kod| j kS )z�Is `token` good? .. todo:: acme-spec wants "It MUST NOT contain any non-ASCII characters", but it should also warrant that it doesn't contain ".." or "/"... s ..� /)r$ r! r r r � good_tokenO s z_TokenChallenge.good_tokenN)r r r r Z TOKEN_SIZEr �FieldZencode_b64jose� functools�partialZdecode_b64joser$ �propertyr) r r r r r# @ s ��r# c s8 e Zd ZdZe�d�ZejZ dd� Z � fdd�Z � Z S )�!KeyAuthorizationChallengeResponsez_Response to Challenges based on Key Authorization. :param unicode key_authorization: �keyAuthorizationc C s� | j �d�}t|�dkr*t�d| j � dS |d |�d�krXt�d|d |�d�� dS t�|j| j d��� � }|d |kr�t�d |d |� dS d S ) a% Verify the key authorization. :param KeyAuthorization chall: Challenge that corresponds to this response. :param JWK account_public_key: :return: ``True`` iff verification of the key authorization was successful. :rtype: bool �.� z)Key authorization (%r) is not well formedFr r$ z8Mismatching token in key authorization: %r instead of %r�Z hash_function� z=Mismatching thumbprint in key authorization: %r instead of %rT) �key_authorization�split�lenr r �encoder � b64encode� thumbprint�thumbprint_hash_function�decode)r �chall�account_public_key�partsr9 r r r �verifyg s, � �� �z(KeyAuthorizationChallengeResponse.verifyc s t t| ��� }|�dd � |S )Nr/ )r r. r" �popr r r r r" � s z1KeyAuthorizationChallengeResponse.to_partial_json) r r r r r r* r4 r ZSHA256r: r? r" r r r r r r. ^ s r. c @ sD e Zd ZdZeZeZejZdd� Z dd� Z e j dd� �Z dd � Zd S ) �KeyAuthorizationChallengez�Challenge based on Key Authorization. :param response_cls: Subclass of `KeyAuthorizationChallengeResponse` that will be used to generate `response`. :param str typ: type of the challenge c C s& | � d�d t�|j| jd���� S )z^Generate Key Authorization. :param JWK account_key: :rtype unicode: r$ r0 r2 )r7 r r8 r9 r: r; �r � account_keyr r r r4 � s ��z+KeyAuthorizationChallenge.key_authorizationc C s | j | �|�d�S )z�Generate response to the challenge. :param JWK account_key: :returns: Response (initialized `response_cls`) to the challenge. :rtype: KeyAuthorizationChallengeResponse �r4 )� response_clsr4 rB r r r �response� s �z"KeyAuthorizationChallenge.responsec K s t � �dS )a� Generate validation for the challenge. Subclasses must implement this method, but they are likely to return completely different data structures, depending on what's necessary to complete the challenge. Interpretation of that return value must be known to the caller. :param JWK account_key: :returns: Challenge-specific validation. N��NotImplementedError�r rC �kwargsr r r � validation� s z$KeyAuthorizationChallenge.validationc O s | � |�| j|f|�|�fS )z�Generate response and validation. Convenience function that return results of `response` and `validation`. :param JWK account_key: :rtype: tuple )rF rK )r rC �argsrJ r r r �response_and_validation� s �z1KeyAuthorizationChallenge.response_and_validationN)r r r r �NotImplemented�typrE r. r: r4 rF �abc�abstractmethodrK rM r r r r rA � s � rA c @ s e Zd ZdZdZdd� ZdS )� DNS01Responsez ACME dns-01 challenge response.zdns-01c C s | � ||�}|st�d� |S )a� Simple verify. This method no longer checks DNS records and is a simple wrapper around `KeyAuthorizationChallengeResponse.verify`. :param challenges.DNS01 chall: Corresponding challenge. :param unicode domain: Domain name being verified. :param JWK account_public_key: Public key for the key pair being authorized. :return: ``True`` iff verification of the key authorization was successful. :rtype: bool �4Verification of key authorization in response failed)r? r r )r r< �domainr= Zverifiedr r r � simple_verify� s zDNS01Response.simple_verifyN)r r r r rO rU r r r r rR � s rR c @ s. e Zd ZdZeZejZdZdd� Zdd� Z dS )�DNS01zACME dns-01 challenge.�_acme-challengec K s$ t �t�| �|��d���� ��� S )�WGenerate validation. :param JWK account_key: :rtype: unicode �utf-8)r r8 �hashlibZsha256r4 r7 Zdigestr; �r rC Z unused_kwargsr r r rK � s ��zDNS01.validationc C s d� | j|�S �zkDomain name for TXT validation record. :param unicode name: Domain name being validated. z{0}.{1}��format�LABEL�r �namer r r �validation_domain_name� s z DNS01.validation_domain_nameN) r r r r rR rE rO r_ rK rb r r r r rV � s rV c @ s& e Zd ZdZdZdZdZddd�ZdS ) �HTTP01Responsez ACME http-01 challenge response.zhttp-01�P z Nc C s� | � ||�st�d� dS |dk rF|| jkrFt�d|� |d�|�7 }|�|�}t�d|j|� zt� |�}W n: tj j k r� } zt� d||� W Y �dS d}~X Y nX t�d||j |j� |j �| j�}| j|kr�t�d | j|� dS d S ) a� Simple verify. :param challenges.SimpleHTTP chall: Corresponding challenge. :param unicode domain: Domain name being verified. :param JWK account_public_key: Public key for the key pair being authorized. :param int port: Port used in the validation. :returns: ``True`` iff validation with the files currently served by the HTTP server is successful. :rtype: bool rS FNz4Using non-standard port for http-01 verification: %sz:{0}zVerifying %s at %s...zUnable to reach %s: %sz Received %s: %s. Headers: %szEKey authorization from response (%r) doesn't match HTTP response (%r)T)r? r r �PORTZwarningr^ �urirO �requests�get� exceptionsZRequestExceptionr �textZheaders�rstrip�WHITESPACE_CUTSETr4 ) r r< rT r= Zportrf Z http_responser Zchallenge_responser r r rU s8 � � �z HTTP01Response.simple_verify)N)r r r r rO re rl rU r r r r rc s rc c @ s: e Zd ZdZeZejZdZedd� �Z dd� Z dd� Z d S ) �HTTP01zACME http-01 challenge.z.well-known/acme-challengec C s d| j d | �d� S )zTPath (starting with '/') for provisioned resource. :rtype: string �/r$ )� URI_ROOT_PATHr7 r! r r r �pathL s z HTTP01.pathc C s d| | j S )z�Create an URI to the provisioned resource. Forms an URI to the HTTPS server provisioned resource (containing :attr:`~SimpleHTTP.token`). :param unicode domain: Domain name being verified. :rtype: string zhttp://)rp )r rT r r r rf U s z HTTP01.uric K s | � |�S )rX rD r[ r r r rK a s zHTTP01.validationN) r r r r rc rE rO ro r- rp rf rK r r r r rm C s rm c @ s e Zd ZdZdZdS )�TLSALPN01Responsea ACME TLS-ALPN-01 challenge response. This class only allows initiating a TLS-ALPN-01 challenge returned from the CA. Full support for responding to TLS-ALPN-01 challenges by generating and serving the expected response certificate is not currently provided. � tls-alpn-01N)r r r r rO r r r r rq k s rq c @ s e Zd ZdZdZeZdd� ZdS )� TLSALPN01z�ACME tls-alpn-01 challenge. This class simply allows parsing the TLS-ALPN-01 challenge returned from the CA. Full TLS-ALPN-01 support is not currently provided. rr c K s t � �dS )z&Generate validation for the challenge.NrG rI r r r rK � s zTLSALPN01.validationN)r r r r rO rq rE rK r r r r rs v s rs c @ s> e Zd ZdZdZdZejfdd�Zdd� Z dd � Z d d � Z d S ) �DNSzACME "dns" challenge.�dnsrW c K s( t jjf | jdd��d�||d�|��S )z�Generate validation. :param .JWK account_key: Private account key. :param .JWA alg: :returns: This challenge wrapped in `.JWS` :rtype: .JWS T)Z sort_keysrY )�payload�key�alg)r �JWSZsignZ json_dumpsr7 )r rC rx rJ r r r �gen_validation� s ��zDNS.gen_validationc C sd |j |d�sdS z| | �|j�d��kW S tjk r^ } zt�d|� W Y �dS d}~X Y nX dS )zwCheck validation. :param JWS validation: :param JWK account_public_key: :rtype: bool )rw FrY z&Checking validation for DNS failed: %sN)r? Z json_loadsrv r; r ZDeserializationErrorr r )r rK r= r r r r �check_validation� s � zDNS.check_validationc K s t | j|f|�d�S )z�Generate response. :param .JWK account_key: Private account key. :param .JWA alg: :rtype: DNSResponse )rK )� DNSResponserz rI r r r � gen_response� s ��zDNS.gen_responsec C s d� | j|�S r\ r] r` r r r rb � s zDNS.validation_domain_nameN) r r r r rO r_ r ZRS256rz r{ r} rb r r r r rt � s rt c @ s. e Zd ZdZdZejdejjd�Z dd� Z dS )r| z@ACME "dns" challenge response. :param JWS validation: ru rK )r' c C s |� | j|�S )z~Check validation. :param challenges.DNS chall: :param JWK account_public_key: :rtype: bool )r{ rK )r r< r= r r r r{ � s z DNSResponse.check_validationN) r r r r rO r r* ry r rK r{ r r r r r| � s r| )"r rP r+ rZ ZloggingZ cryptography.hazmat.primitivesr Zjosepyr rg ZsixZacmer Z getLoggerr r ZTypedJSONObjectWithFieldsr r r r# r. Z add_metaclass�ABCMetarA �registerrR rV rc rm rq rs rt r| r r r r �<module> sB / @=' ;
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