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Editing: hashes.cpython-39.pyc
a ��Re� � @ s� d dl Z d dlmZmZmZmZmZ d dlmZm Z m Z d dl m Z er`d dl m Z d dlmZ dZg d�ZG d d � d �ZG d d � d e�ZdS ) � N)� TYPE_CHECKING�BinaryIO�Dict�Iterator�List)� HashMismatch� HashMissing�InstallationError)� read_chunks)�_Hash)�NoReturn�sha256)r �sha384�sha512c @ s� e Zd ZdZd#eeee f dd�dd�Zd d d�dd�Ze e d �d d ��Z eee d �d d�Z ee dd�dd�Zeedf dd�dd�Zedd�dd�Zedd�dd �Ze d �d d �Zee d�d d �Ze d �d!d"�ZdS )$�HasheszaA wrapper that builds multiple hashes at once and checks them against known-good values N)�hashes�returnc C s4 i }|dur*|� � D ]\}}t|�||< q|| _dS )zo :param hashes: A dict of algorithm names pointing to lists of allowed hex digests N)�items�sorted�_allowed)�selfr �allowed�alg�keys� r ��/builddir/build/BUILDROOT/alt-python39-pip-21.3.1-2.el8.x86_64/opt/alt/python39/lib/python3.9/site-packages/pip/_internal/utils/hashes.py�__init__ s zHashes.__init__)�otherr c sb t |t�stS |s�S �s |S i }|j�� D ],\� }� �jvr@q,� �fdd�|D �|� < q,t|�S )Nc s g | ]}|�j � v r|�qS r )r )�.0�v�r r r r � <listcomp>; � z"Hashes.__and__.<locals>.<listcomp>)� isinstancer �NotImplementedr r )r r �new�valuesr r r �__and__+ s zHashes.__and__�r c C s t dd� | j�� D ��S )Nc s s | ]}t |�V qd S �N)�len)r �digestsr r r � <genexpr>@ r" z&Hashes.digest_count.<locals>.<genexpr>)�sumr r& �r r r r � digest_count> s zHashes.digest_count)� hash_name� hex_digestr c C s || j �|g �v S )z/Return whether the given hex digest is allowed.)r �get)r r0 r1 r r r �is_hash_allowedB s zHashes.is_hash_allowed)�chunksr c C s� i }| j �� D ]<}zt�|�||< W q ttfyH td|� ���Y q0 q|D ] }|�� D ]}|�|� q\qP|� � D ] \}}|� � | j | v rv dS qv| � |� dS )z�Check good hashes against ones built from iterable of chunks of data. Raise HashMismatch if none match. zUnknown hash name: N) r r �hashlibr% � ValueError� TypeErrorr r& �updater � hexdigest�_raise)r r4 �gotsr0 �chunk�hash�gotr r r �check_against_chunksF s zHashes.check_against_chunksr r �r; r c C s t | j|��d S r) )r r �r r; r r r r: ] s z Hashes._raise)�filer c C s | � t|��S )zaCheck good hashes against a file-like object Raise HashMismatch if none match. )r? r )r rB r r r �check_against_file` s zHashes.check_against_file)�pathr c C s8 t |d��}| �|�W d � S 1 s*0 Y d S )N�rb)�openrC )r rD rB r r r �check_against_pathh s zHashes.check_against_pathc C s t | j�S )z,Return whether I know any known-good hashes.)�boolr r. r r r �__bool__l s zHashes.__bool__c C s t |t�stS | j|jkS r) )r# r r$ r )r r r r r �__eq__p s z Hashes.__eq__c C s" t d�tdd� | j�� D ����S )N�,c s s* | ]"\}}|D ]}d � ||f�V qqdS )�:N)�join)r r � digest_list�digestr r r r, x s �z"Hashes.__hash__.<locals>.<genexpr>)r= rM r r r r. r r r �__hash__u s ���zHashes.__hash__)N)�__name__� __module__� __qualname__�__doc__r �strr r r' �property�intr/ rH r3 r �bytesr? r: r rC rG rI �objectrJ rP r r r r r s r c s> e Zd ZdZdd�� fdd� Zeedf dd�d d �Z� ZS ) � MissingHashesz�A 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 � jtg id� dS )z!Don't offer the ``hashes`` kwarg.)r N)�superr � FAVORITE_HASHr. �� __class__r r r � s zMissingHashes.__init__r r r@ c C s t |t �� ��d S r) )r r\ r9 rA r r r r: � s zMissingHashes._raise) rQ rR rS rT r r rU r: � __classcell__r r r] r rZ � s rZ )r5 �typingr r r r r �pip._internal.exceptionsr r r �pip._internal.utils.miscr r r r\ � STRONG_HASHESr rZ r r r r �<module> s h
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