o
    0g/                     @   s   d dl Z d dlmZmZmZmZmZ d dlmZm	Z	m
Z
 d dlmZ er0d dl mZ d dlmZ dZg dZG d	d
 d
ZG dd deZdS )    N)TYPE_CHECKINGBinaryIODictIteratorList)HashMismatchHashMissingInstallationError)read_chunks)_Hash)NoReturnsha256)r   sha384sha512c                   @   sv   e Zd ZdZdddZdd Zedd Zd	d
 Zdd Z	dd Z
dd Zdd Zdd Zdd Zdd Zdd ZdS )HasheszaA wrapper that builds multiple hashes at once and checks them against
    known-good values

    Nc                 C   s4   i }|dur|  D ]
\}}t|||< q
|| _dS )zo
        :param hashes: A dict of algorithm names pointing to lists of allowed
            hex digests
        N)itemssorted_allowed)selfhashesallowedalgkeys r   a/home/www/bk.finsightngr.online/venv20/lib/python3.10/site-packages/pip/_internal/utils/hashes.py__init__   s
   
zHashes.__init__c                    sb   t |tstS |sS s|S i }|j D ]\ } jvr q fdd|D | < qt|S )Nc                    s   g | ]}|j   v r|qS r   )r   ).0vr   r   r   r   
<listcomp>=   s    z"Hashes.__and__.<locals>.<listcomp>)
isinstancer   NotImplementedr   r   )r   othernewvaluesr   r   r   __and__,   s   

zHashes.__and__c                 C   s   t dd | j D S )Nc                 s   s    | ]}t |V  qd S N)len)r   digestsr   r   r   	<genexpr>C   s    z&Hashes.digest_count.<locals>.<genexpr>)sumr   r$   r   r   r   r   digest_count@   s   zHashes.digest_countc                 C   s   || j |g v S )z/Return whether the given hex digest is allowed.)r   get)r   	hash_name
hex_digestr   r   r   is_hash_allowedE   s   zHashes.is_hash_allowedc              
   C   s   i }| j  D ]}z	t|||< W q ttfy"   td| w |D ]}| D ]}|| q+q%|	 D ]\}}|
 | j | v rH dS q8| | dS )zCheck good hashes against ones built from iterable of chunks of
        data.

        Raise HashMismatch if none match.

        zUnknown hash name: N)r   r   hashlibr#   
ValueError	TypeErrorr	   r$   updater   	hexdigest_raise)r   chunksgotsr.   chunkhashgotr   r   r   check_against_chunksN   s    zHashes.check_against_chunksc                 C   s   t | j|r&   )r   r   r   r8   r   r   r   r6   f   s   zHashes._raisec                 C   s   |  t|S )zaCheck good hashes against a file-like object

        Raise HashMismatch if none match.

        )r<   r
   )r   filer   r   r   check_against_filej   s   zHashes.check_against_filec                 C   s8   t |d}| |W  d    S 1 sw   Y  d S )Nrb)openr?   )r   pathr>   r   r   r   check_against_paths   s   $zHashes.check_against_pathc                 C   s
   t | jS )z,Return whether I know any known-good hashes.)boolr   r+   r   r   r   __nonzero__x   s   
zHashes.__nonzero__c                 C   s   |   S r&   )rE   r+   r   r   r   __bool__}   s   zHashes.__bool__c                 C   s   t |tstS | j|jkS r&   )r    r   r!   r   )r   r"   r   r   r   __eq__   s   
zHashes.__eq__c                 C   s"   t dtdd | j D S )N,c                 s   s,    | ]\}}|D ]
}d  ||fV  qqdS ):N)join)r   r   digest_listdigestr   r   r   r)      s    z"Hashes.__hash__.<locals>.<genexpr>)r:   rJ   r   r   r   r+   r   r   r   __hash__   s   zHashes.__hash__r&   )__name__
__module____qualname____doc__r   r%   propertyr,   r0   r<   r6   r?   rC   rE   rF   rG   rM   r   r   r   r   r      s    

		r   c                       s(   e Zd ZdZ fddZdd Z  ZS )MissingHasheszA workalike for Hashes used when we're missing a hash for a requirement

    It computes the actual hash of the requirement and raises a HashMissing
    exception showing it to the user.

    c                    s   t  jtg id dS )z!Don't offer the ``hashes`` kwarg.)r   N)superr   FAVORITE_HASHr+   	__class__r   r   r      s   zMissingHashes.__init__c                 C   s   t |t  r&   )r   rU   r5   r=   r   r   r   r6      s   zMissingHashes._raise)rN   rO   rP   rQ   r   r6   __classcell__r   r   rV   r   rS      s    rS   )r1   typingr   r   r   r   r   pip._internal.exceptionsr   r   r	   pip._internal.utils.miscr
   r   r   rU   STRONG_HASHESr   rS   r   r   r   r   <module>   s    {