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    Ha                     @   s  d dl Z d dlZd dlZd dlmZ d dlmZ d dlmZ d dl	m
Z
mZmZ d dlmZ d dlmZmZ d dlmZ d d	lmZmZ e jdd
dd Zdd ZdddZd ddZd!ddZd"ddZeeeZ G dd dZ!G dd dZ"G dd dZ#G dd dZ$dS )#    N)SequenceMatcher)Path)settings)FieldDoesNotExistImproperlyConfiguredValidationError)lazy)format_htmlformat_html_join)import_string)gettextngettext)maxsizec                   C   s
   t tjS N)get_password_validatorsr   ZAUTH_PASSWORD_VALIDATORS r   r   K/tmp/pip-unpacked-wheel-3jxiddxt/django/contrib/auth/password_validation.pyget_default_password_validators   s    r   c              	   C   sd   g }| D ]V}zt |d }W n( tk
rD   d}t||d  Y nX ||f |di  q|S )NNAMEzZThe module in NAME could not be imported: %s. Check your AUTH_PASSWORD_VALIDATORS setting.OPTIONS)r   ImportErrorr   appendget)Zvalidator_configZ
validators	validatorklassmsgr   r   r   r      s    r   c                 C   sj   g }|dkrt  }|D ]B}z|| | W q tk
rV } z|| W 5 d}~X Y qX q|rft|dS )z
    Validate whether the password meets all validator requirements.

    If the password is valid, return ``None``.
    If the password is invalid, raise ValidationError with all error messages.
    N)r   validater   r   )passworduserpassword_validatorserrorsr   errorr   r   r   validate_password#   s    r"   c                 C   s6   |dkrt  }|D ]}t|ddd }|| | qdS )zy
    Inform all validators that have implemented a password_changed() method
    that the password has been changed.
    Npassword_changedc                  W   s   d S r   r   )ar   r   r   <lambda>>       z"password_changed.<locals>.<lambda>)r   getattr)r   r   r   r   r#   r   r   r   r#   6   s
    r#   c                 C   s.   g }| dkrt  } | D ]}||  q|S )zG
    Return a list of all help texts of all configured validators.
    N)r   r   get_help_text)r   
help_textsr   r   r   r   password_validators_help_textsB   s    r*   c                 C   s0   t | }tdddd |D }|r,td|S dS )z`
    Return an HTML string with all help texts of all configured validators
    in an <ul>.
     z<li>{}</li>c                 s   s   | ]}|fV  qd S r   r   ).0	help_textr   r   r   	<genexpr>T   s     z6_password_validators_help_text_html.<locals>.<genexpr>z<ul>{}</ul>)r*   r
   r	   )r   r)   Z
help_itemsr   r   r   #_password_validators_help_text_htmlN   s    r/   c                   @   s,   e Zd ZdZd
ddZdddZdd	 ZdS )MinimumLengthValidatorz?
    Validate whether the password is of a minimum length.
       c                 C   s
   || _ d S r   )
min_length)selfr2   r   r   r   __init___   s    zMinimumLengthValidator.__init__Nc                 C   s0   t || jk r,ttdd| jdd| jidd S )NzNThis password is too short. It must contain at least %(min_length)d character.zOThis password is too short. It must contain at least %(min_length)d characters.Zpassword_too_shortr2   codeparams)lenr2   r   r   r3   r   r   r   r   r   r   b   s    zMinimumLengthValidator.validatec                 C   s   t dd| jd| ji S )Nz=Your password must contain at least %(min_length)d character.z>Your password must contain at least %(min_length)d characters.r2   )r   r2   r3   r   r   r   r(   n   s    z$MinimumLengthValidator.get_help_text)r1   )N)__name__
__module____qualname____doc__r4   r   r(   r   r   r   r   r0   [   s   

r0   c                   @   s4   e Zd ZdZdZedfddZdddZd	d
 ZdS ) UserAttributeSimilarityValidatora  
    Validate whether the password is sufficiently different from the user's
    attributes.

    If no specific attributes are provided, look at a sensible list of
    defaults. Attributes that don't exist are ignored. Comparison is made to
    not only the full attribute value, but also its components, so that, for
    example, a password is validated against either part of an email address,
    as well as the full address.
    )usernameZ
first_name	last_nameemailgffffff?c                 C   s   || _ || _d S r   )user_attributesmax_similarity)r3   rC   rD   r   r   r   r4      s    z)UserAttributeSimilarityValidator.__init__Nc              
   C   s   |sd S | j D ]}t||d }|rt|ts.qtd||g }|D ]h}t| | d | j	krDzt|j
|j}W n tk
r   |}Y nX ttddd|idqDqd S )Nz\W+)r$   bz4The password is too similar to the %(verbose_name)s.Zpassword_too_similarverbose_namer5   )rC   r'   
isinstancestrresplitr   lowerZquick_ratiorD   Z_meta	get_fieldrF   r   r   _)r3   r   r   Zattribute_namevalueZvalue_partsZ
value_partrF   r   r   r   r      s$    

z)UserAttributeSimilarityValidator.validatec                 C   s   t dS )NuH   Your password can’t be too similar to your other personal information.rM   r:   r   r   r   r(      s    z.UserAttributeSimilarityValidator.get_help_text)N)r;   r<   r=   r>   ZDEFAULT_USER_ATTRIBUTESr4   r   r(   r   r   r   r   r?   v   s
   

r?   c                   @   s@   e Zd ZdZee jd ZefddZ	d
ddZ
dd	 ZdS )CommonPasswordValidatora  
    Validate whether the password is a common password.

    The password is rejected if it occurs in a provided list of passwords,
    which may be gzipped. The list Django ships with contains 20000 common
    passwords (lowercased and deduplicated), created by Royce Williams:
    https://gist.github.com/roycewilliams/281ce539915a947a23db17137d91aeb7
    The password list must be lowercased to match the comparison in validate().
    zcommon-passwords.txt.gzc                 C   sn   z0t j|ddd}dd |D | _W 5 Q R X W n8 tk
rh   t|}dd |D | _W 5 Q R X Y nX d S )Nrtzutf-8)encodingc                 S   s   h | ]}|  qS r   stripr,   xr   r   r   	<setcomp>   s     z3CommonPasswordValidator.__init__.<locals>.<setcomp>c                 S   s   h | ]}|  qS r   rS   rU   r   r   r   rW      s     )gzipopen	passwordsOSError)r3   Zpassword_list_pathfr   r   r   r4      s    
z CommonPasswordValidator.__init__Nc                 C   s&   |   | jkr"ttdddd S )NzThis password is too common.Zpassword_too_commonr6   )rK   rT   rZ   r   rM   r9   r   r   r   r      s
    z CommonPasswordValidator.validatec                 C   s   t dS )Nu2   Your password can’t be a commonly used password.rO   r:   r   r   r   r(      s    z%CommonPasswordValidator.get_help_text)N)r;   r<   r=   r>   r   __file__resolveparentZDEFAULT_PASSWORD_LIST_PATHr4   r   r(   r   r   r   r   rP      s
   	
rP   c                   @   s"   e Zd ZdZdddZdd ZdS )NumericPasswordValidatorz8
    Validate whether the password is alphanumeric.
    Nc                 C   s   |  rttdddd S )Nz"This password is entirely numeric.Zpassword_entirely_numericr]   )isdigitr   rM   r9   r   r   r   r      s
    z!NumericPasswordValidator.validatec                 C   s   t dS )Nu*   Your password can’t be entirely numeric.rO   r:   r   r   r   r(      s    z&NumericPasswordValidator.get_help_text)N)r;   r<   r=   r>   r   r(   r   r   r   r   ra      s   
ra   )NN)NN)N)N)%	functoolsrX   rI   difflibr   pathlibr   Zdjango.confr   Zdjango.core.exceptionsr   r   r   Zdjango.utils.functionalr   Zdjango.utils.htmlr	   r
   Zdjango.utils.module_loadingr   Zdjango.utils.translationr   rM   r   	lru_cacher   r   r"   r#   r*   r/   rH   Z"password_validators_help_text_htmlr0   r?   rP   ra   r   r   r   r   <module>   s,   


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*