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o ;j� � @ s d Z ddlZddlZddlZddlZddlZddlZddlZddl Zddl m Z e d�dd� �Z e d�dd � �Z d d � Zd d � Ze d�dd� �Ze d�dd� �Ze d�dd� �Ze d�dd� �Ze d�dd � �Ze d �d d � �Ze d �e d �d)d"d ���Ze d#�d*d%d&��ZG d'd(� d(�ZdS )+z- A collection of hashing and encoding utils. � N)� jinja_filterZ base64_encodec C �6 t jjjt�t jj�| ��t jj�� rdd�S dd�S )z� Encode a string as base64 using the "modern" Python interface. Among other possible differences, the "modern" encoder does not include newline ('\n') characters in the encoded output. �utf8N��encoding) �salt�utils� stringutils� to_unicode�base64� b64encode�to_bytes�platform� is_windows��instr� r �H/opt/saltstack/salt/lib/python3.10/site-packages/salt/utils/hashutils.py�base64_b64encode � ��r Z base64_decodec C sV t �tjj�| ��}ztjjj|tjj�� rdd�W S dd�W S t y* | Y S w )zM Decode a base64-encoded string using the "modern" Python interface. r Nr ) r � b64decoder r r r r r r �UnicodeDecodeError)r �decodedr r r �base64_b64decode s �� �r c C r )a Encode a byte-like object as base64 using the "modern" Python interface. Among other possible differences, the "modern" encoder includes a newline ('\n') character after every 76 characters and always at the end of the encoded string. r Nr ) r r r r r � encodebytesr r r r r r r �base64_encodestring- r r c C sZ t jj�| �}t�|�}zt jjj|t jj�� r dd�W S dd�W S t y, | Y S w )zW Decode a base64-encoded byte-like object using the "modern" Python interface. r Nr ) r r r r r � decodebytesr r r r )r Zbvaluer r r r �base64_decodestring; s �� �r �md5c C �" t jj�t�t jj�| ���� �S )z1 Generate an md5 hash of a given string. )r r r r �hashlibr r � hexdigestr r r r � md5_digestI � �r" �sha1c C s t �tjj�| ���� S )z2 Generate an sha1 hash of a given string. )r r$ r r r r r! r r r r � sha1_digestS s r% �sha256c C r )z3 Generate a sha256 hash of a given string. )r r r r r r& r r! r r r r � sha256_digest[ r# r' �sha512c C r )z2 Generate a sha512 hash of a given string )r r r r r r( r r! r r r r � sha512_digeste r# r) �hmacc C sP t jj�| �}t jj�|�}t jj�|�}t�||tj�}t� |� � �}||kS )z� Verify a challenging hmac signature against a string / shared-secret Returns a boolean if the verification succeeded or failed. ) r r r r r* �newr r& r r �digest)�string� shared_secretZchallenge_hmac�msg�keyZ challenge� hmac_hashZ valid_hmacr r r �hmac_signatureo s r2 � hmac_computec C s4 t jj�| �}t jj�|�}t�||tj��� }|S )z Create an hmac digest. ) r r r r r* r+ r r& r! )r- r. r/ r0 r1 r r r r3 } s Zrand_str� random_hash� �c( c C s8 |sd}t t|�}|tjj�tt�� � d| ����� � S )zG Return a hash of a randomized data from random.SystemRandom() r r ) �getattrr r r r r �str�random� SystemRandom�randintr! )�size� hash_typeZhasherr r r r4 � s ��Z file_hashsum� c s� t t|�r tt|�p d}|du rtd|� ���tjj�| d��!�|� }t� �fdd�d�D ]}|� |� q-|� � W d � S 1 sCw Y dS )ay Get the hash sum of a file This is better than ``get_sum`` for the following reasons: - It does not read the entire file into memory. - It does not return a string on error. The returned value of ``get_sum`` cannot really be trusted since it is vulnerable to collisions: ``get_sum(..., 'xyz') == 'Hash xyz not supported'`` N�Invalid hash type: �rbc s �� � �S �N)�readr �� chunk_size�ifiler r �<lambda>� s zget_hash.<locals>.<lambda>� ) �hasattrr r6 � ValueErrorr r �files�fopen�iter�updater! )�path�formrC r< Zhash_obj�chunkr rB r �get_hash� s $�rP c @ s* e Zd ZdZd dd�Zdd� Zdd � Zd S ) �DigestCollectorz3 Class to collect digest of the file tree. r& r= c C s> t t|�r tt|�� p d| _| jdu rtd|� ���|| _dS )z@ Constructor of the class. :param form: Nr> )rG r r6 �_DigestCollector__digestrH �_DigestCollector__buff)�selfrN Zbuffr r r �__init__� s zDigestCollector.__init__c s\ t jj�|d�� � t� �fdd�d�D ]}�j�|� qW d � dS 1 s'w Y dS )ze Update digest with the file content by path. :param path: :return: r? c s � � �j�S r@ )rA rS r �rD rT r r rE � s z%DigestCollector.add.<locals>.<lambda>rF N)r r rI rJ rK rR rL )rT rM rO r rV r �add� s �"�zDigestCollector.addc C s t jj�| j�� tj �S )z/ Get digest. :return: )r r r Zto_strrR r! �os�linesep)rT r r r r, � s zDigestCollector.digestN�r& r= )�__name__� __module__� __qualname__�__doc__rU rW r, r r r r rQ � s rQ )r5 NrZ )r^ r r r* rX r8 Zsalt.utils.filesr Zsalt.utils.platformZsalt.utils.stringutilsZsalt.utils.decorators.jinjar r r r r r" r% r' r) r2 r3 r4 rP rQ r r r r �<module> sD
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