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validator.cpython-39.pyc
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Validate a particular parameter with a particular validator and possibly coerce the value into the validator's return type. :param validator: The validator to be run :param param_value: The value to be validated :param coerce_: Whether to return a type coerced value :raises ValueError: If the parameter could not be validated. z#Parameter %s failed validation (%s)NTz6Cannot use a non-callable as a parameter validator: %s)�callable� Exceptionr � ValueError)r r r �myval�e�retr r r �validate s (r! )�param_validatorr r r c C s� | dur�t | t�r�| D ]Z}|du r2|du r2| S zt|||d�}|W S tyn } z W Y d}~qd}~0 0 qtd|| f ��t| ||d�S |S )a Validate a parameter. :param param_validator: The validator (or list of validators) to be run :param param_value: The value to be validated :param coerce_: Whether to return a type coerced value :raises ValueError: If the parameter could not be validated. N�r z&No validator in list validated %s (%s))� isinstancer r! r r )r" r r r �retval�_r r r �validate_param1 s r' )�valr c C sH z t | � W n6 tyB } z td| |f �|�W Y d}~n d}~0 0 | S )a Validate that a string looks like a URL. url is intended to be used like str or int to be a basic callable that will except on type mismatch or non- coercible value. :param val: The value to be checked :raises ValueError: If the value does not look like a URL. zNot a url: %s (%s)N)� URL_SCHEMAr r )r( r r r r �urlU s (r* c C s, zt �| t�}W dS ty& Y dS 0 dS )z�Validate that we can parse a datetime from a string. Catch exception and return false if strptime doesn't work. :param val: The value to be checked TFN)r �strptimer r )r( r& r r r �parseable_datetimeh s r, c C s& t | t�st| �r| S td| ��dS )z�Validate that a value represents a datetime. :param val: The value to be checked :raises ValueError: If the value does not represent a datetime. zNot a datetime: %sN)r$ r r, r �r( r r r � is_datetimev s r. c C s t | t�r| S td| ��dS )z�Validate that a value is a timedelta. :param val: The value to be checked :raises ValueError: If the value is not a timedelta. zNot a timedelta: %sN)r$ r r r- r r r � is_timedelta� s r/ c C s& t | t�r| i kr| S td| ��dS )z�Validate that a value is a non-empty dictionary. :param val: The value to be checked :raises ValueError: If the value is not a dictionary, or is empty. zNot a non-empty dict: %sN)r$ �dictr r- r r r �is_non_empty_dict� s r1 z^[a-z_][a-z0-9_]*$c C s$ t �| �r| S tdt j| f ��dS )z�Validate that argument is a valid Postgres identifier. :param val: The value to be checked :raises ValueError: If the value is not a valid Postgres identifier. z"Not a valid Postgres name (%s): %sN)�POSTGRES_NAME_REGEX�matchr �patternr- r r r �is_postgres_name� s �r5 )�positional_args�positional_arg_valuesr r c C sv g }t |�D ]d\}}z | | }W n( tyH } zd}W Y d}~n d}~0 0 |durbt|||d�}n|}|�|� q |S )az Validate a list of positional arguments. If we run out of stated positionals, we simply dump the originals unvalidated (we're saying the validators are optional) :param positional_args: The validators to be run, in order, against the values :param positional_arg_values: The values to be validated :param coerce_: Whether to return type coerced values Nr# )� enumerate� IndexErrorr' �append) r6 r7 r �outargs�indexZmyvaluer r& r r r r � internal_validate_positionals� s r= )� keyword_args�keyword_arg_valuesr r c C st i }|� � D ]b\}}z | | }W n( tyH } zd}W Y d}~n d}~0 0 |durbt|||d�}n|}|||< q |S )ar Validate a dictionary of keyword arguments. If there is no matching validator for a particular keyword, then the original value is passed along in the output unvalidated. :param keyword_args: The validators to be run against the values :param keyword_arg_values: The values to be validated :param coerce_: Whether to return type coerced values Nr# )�items�KeyErrorr' ) r> r? r Zoutdict�key�valuer r& r r r r �internal_validate_keywords� s rD )� positionals�keywordsr r c s � ��fdd�}|S )a> Either coerce the arguments in the suggested way or die with error back to the client. :param positionals: A list of validators to be run against positional arguments :param keywords: A dictionary of validators to be run against keyword arguments :param coerce_: Whether to return type coerced values c s t �� ��� ��fdd��}|S )ZInnerc s� z<�durt �| � d�}n| }�dur6t�|� d�}n|}W n> tyz } z&tdt|�t|�f �|�W Y d}~n d}~0 0 �|i |��S )zActual wrapperNr# zFailed to validate: %s, %s)r= rD r r �str)�args�kwargsr; Z outkwargsr )r �functionrF rE r r �wrapper� s 0z3coerce_or_error.<locals>.decorator.<locals>.wrapper)� functools�wraps)rJ rK �r rF rE )rJ r � decorator� s z"coerce_or_error.<locals>.decoratorr )rE rF r rO r rN r �coerce_or_error� s rP )� uuid_mayber c C s( zt | � W dS ty" Y dS 0 dS )z]Validate that a value represents a UUID. :param uuid_maybe: The value to be checked TFN)r r )rQ r r r �is_uuid� s rR )F)F)F)F)NNF))rL �rer r �typingr r r r r r r �uuidr Z voluptuousr r r Zprimordial.constantsr Z ValidatorTyperG Z DateTimeTyper r �boolr! r' r) r* r, r. r/ r1 �compiler2 r5 r= rD rP rR r r r r �<module> sL $ ! �� � � � �