a
    Sic                     @   s   d dl Z d dlmZ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rdd 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IterableListOptional)HashMismatchHashMissingInstallationError)read_chunks)_Hash)NoReturnsha256)r   sha384sha512c                   @   s   e Zd ZdZd#eeeee f  ddddZd d dddZ	e
ed	d
dZeeedddZee ddddZeedf ddddZeddddZeddddZed	ddZeeddd Zed	d!d"ZdS )$HasheszaA wrapper that builds multiple hashes at once and checks them against
    known-good values

    N)hashesreturnc                 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)selfr   allowedalgkeys r   V/var/www/html/django/DPS/env/lib/python3.9/site-packages/pip/_internal/utils/hashes.py__init__   s
    zHashes.__init__)otherr   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>;       z"Hashes.__and__.<locals>.<listcomp>)
isinstancer   NotImplementedr   r   )r   r   newvaluesr   r!   r   __and__+   s    

zHashes.__and__r   c                 C   s   t dd | j D S )Nc                 s   s   | ]}t |V  qd S N)len)r   Zdigestsr   r   r   	<genexpr>@   r#   z&Hashes.digest_count.<locals>.<genexpr>)sumr   r'   r   r   r   r   digest_count>   s    zHashes.digest_count)	hash_name
hex_digestr   c                 C   s   || j |g v S )z/Return whether the given hex digest is allowed.)r   get)r   r0   r1   r   r   r   is_hash_allowedB   s    zHashes.is_hash_allowed)chunksr   c              
   C   s   i }| j  D ]<}zt|||< W q ttfyH   td| Y q0 q|D ]}| D ]}|| q\qP|	 D ] \}}|
 | j | v rv dS qv| | 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   r4   gotsr0   chunkhashZgotr   r   r   check_against_chunksF   s    zHashes.check_against_chunksr   r   r;   r   c                 C   s   t | j|d S r*   )r   r   r   r;   r   r   r   r:   ]   s    zHashes._raise)filer   c                 C   s   |  t|S )zaCheck good hashes against a file-like object

        Raise HashMismatch if none match.

        )r>   r   )r   rA   r   r   r   check_against_file`   s    zHashes.check_against_file)pathr   c                 C   s8   t |d}| |W  d    S 1 s*0    Y  d S )Nrb)openrB   )r   rC   rA   r   r   r   check_against_pathh   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   __bool__l   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__p   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   Zdigest_listdigestr   r   r   r,   x   s   z"Hashes.__hash__.<locals>.<genexpr>)r=   rL   r   r   r   r.   r   r   r   __hash__u   s    zHashes.__hash__)N)__name__
__module____qualname____doc__r   r   strr   r   r(   propertyintr/   rG   r3   r   bytesr>   r:   r   rB   rF   rH   objectrI   rN   r   r   r   r   r      s   "r   c                       s>   e Zd ZdZdd fddZeedf dd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.

    Nr)   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__r   r   r?   c                 C   s   t |t  d S r*   )r	   rZ   r9   r@   r   r   r   r:      s    zMissingHashes._raise)	rO   rP   rQ   rR   r   r   rS   r:   __classcell__r   r   r[   r   rX      s   rX   )r5   typingr   r   r   r   r   r   pip._internal.exceptionsr   r	   r
   pip._internal.utils.miscr   r   r   rZ   STRONG_HASHESr   rX   r   r   r   r   <module>   s    h