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o i��d� � @ s& d dl Z d dlmZ G dd� d�ZdS )� N)�Lockc @ s\ e Zd ZdZg Zg ZdZdd� Zdd� Zdd� Z d d � Z d d � Z d d� Z dd� Z dd� ZdS )�SoSMapz�Standardized way to store items with their obfuscated counterparts. Each type of sanitization that SoSCleaner supports should have a corresponding SoSMap() object, to allow for easy retrieval of obfuscated items. Tc C s i | _ t� | _g | _t� | _d S )N)�dataset�set� _regexes_made�compiled_regexesr �lock)�self� r �?/usr/lib/python3/dist-packages/sos/cleaner/mappings/__init__.py�__init__ s zSoSMap.__init__c C sF |r|| j v s|| j�� v rdS | jD ] }t�||tj�r dS qdS )z�Some items need to be completely ignored, for example link-local or loopback addresses should not be obfuscated TN)� skip_keysr �values�ignore_matches�re�match�I)r �item�skipr r r � ignore_item# s ��zSoSMap.ignore_itemc C sb | � |�r|S | j� | �|�| j|< | jr| �|� | j| W d � S 1 s*w Y dS )z�Add a particular item to the map, generating an obfuscated pair for it. Positional arguments: :param item: The plaintext object to obfuscate N)r r � sanitize_itemr �compile_regexes�add_regex_item�r r r r r �add- s $�z SoSMap.addc C sV | � |�rdS || jvr)| j�|� | j�|| �|�f� | jjdd� dd� dS dS )z�Add an item to the regexes dict and then re-sort the list that the parsers will use during parse_line() :param item: The unobfuscated item to generate a regex for :type item: ``str`` Nc S s t | d �S )Nr )�len)�xr r r �<lambda>R s z'SoSMap.add_regex_item.<locals>.<lambda>T)�key�reverse)r r r r �append�get_regex_result�sortr r r r r = s �zSoSMap.add_regex_itemc C s t �t �|�t j�S )a9 Generate the object/value that is used by the parser when iterating over pre-generated regexes during parse_line(). For most parsers this will simply be a ``re.Pattern()`` object, but for more complex parsers this can be overridden to provide a different object, e.g. a tuple, for that parer's specific iteration needs. :param item: The unobfuscated string to generate the regex for :type item: ``str`` :returns: A compiled regex pattern for the item :rtype: ``re.Pattern`` )r �compile�escaper r r r r r! T s zSoSMap.get_regex_resultc C s |S )z�Perform the obfuscation relevant to the item being added to the map. This should be overridden by each type of map that subclasses SoSMap Positional arguments: :param item: The plaintext object to obfuscate r r r r r r c s zSoSMap.sanitize_itemc C s, | � |�r|S || jvr| �|�S | j| S )z�Retrieve an item's obfuscated counterpart from the map. If the item does not yet exist in the map, add it by generating one on the fly )r r r r r r r �getn s z SoSMap.getc C s | j �|� dS )a) Update the map using information from a previous run to ensure that we have consistent obfuscation between reports Positional arguments: :param map_dict: A dict of mappings with the form of {clean_entry: 'obfuscated_entry'} N)r �update)r �map_dictr r r � conf_updatex s zSoSMap.conf_updateN)�__name__� __module__� __qualname__�__doc__r r r r r r r r! r r% r( r r r r r s r )r � threadingr r r r r r �<module> s
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