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constraintquery.cpython-39.pyc
a q�qe� � @ s� d dl Z d dlZd dlmZmZ ddlmZmZ ddlm Z ddl m Z m Z ddl mZmZ ddlmZ dd lmZ G d d � d e e e�ZdS ) � N)�Iterable�Set� )�CriteriaDescriptor�CriteriaSetDescriptor)�ConstraintUseError)� MatchObjClass�MatchPermission)� AnyConstraint�ConstraintRuletype)� PolicyQuery)� match_in_setc s� e Zd ZU dZeed�Zedd�ZdZ e e d< edd�Z dZ e e d< dZe e d < ed d �ZdZe e d < dZe e d < d d�� fdd� Zdd� Zee d�dd�Z� ZS )�ConstraintQuerya� Query constraint rules, (mls)constrain/(mls)validatetrans. Parameter: policy The policy to query. Keyword Parameters/Class attributes: ruletype The list of rule type(s) to match. tclass The object class(es) to match. tclass_regex If true, use a regular expression for matching the rule's object class. perms The permission(s) to match. perms_equal If true, the permission set of the rule must exactly match the permissions criteria. If false, any set intersection will match. perms_regex If true, regular expression matching will be used on the permission names instead of set logic. role The name of the role to match in the constraint expression. role_indirect If true, members of an attribute will be matched rather than the attribute itself. role_regex If true, regular expression matching will be used on the role. type_ The name of the type/attribute to match in the constraint expression. type_indirect If true, members of an attribute will be matched rather than the attribute itself. type_regex If true, regular expression matching will be used on the type/attribute. user The name of the user to match in the constraint expression. user_regex If true, regular expression matching will be used on the user. )� enum_class� user_regexZ lookup_userF� role_regexZ lookup_roleT� role_indirect� type_regexZlookup_type_or_attr� type_indirectN)�returnc s( t t| �j|fi |�� t�t�| _d S )N)�superr �__init__�loggingZ getLogger�__name__�log)�self�policy�kwargs�� __class__� �=/usr/lib64/python3.9/site-packages/setools/constraintquery.pyr A s zConstraintQuery.__init__c C s4 |r$t � }|D ]}|�|�� � qn|}t|||�S )ay Match roles/types/users in a constraint expression, optionally by expanding the contents of attributes. Parameters: expr The expression to match. criteria The criteria to match. indirect If attributes in the expression should be expanded. regex If regular expression matching should be used. )�set�update�expandr )r �exprZcriteriaZindirectZregex�obj�itemr r r! � _match_exprE s zConstraintQuery._match_exprc c sB | j �d�| �� | j �d�| �� | �| j � | �| j � | j �d�| �� | j �d�| �� | j �d�| �� | j�� D ]�}| jr�|j| jvr�q|| � |�s�q|z| � |�s�W q|W n t y� Y q|Y n0 | j r�| � |jj| j | j| j�s�q|| j�r| � |jj| j| j| j��sq|| j�r6| � |jj| jd| j��s6q||V q|dS )z6Generator which yields all matching constraints rules.z-Generating constraint results from {0.policy}zRuletypes: {0.ruletype}z'User: {0.user!r}, regex: {0.user_regex}z'Role: {0.role!r}, regex: {0.role_regex}z(Type: {0.type_!r}, regex: {0.type_regex}FN)r �info�format�debugZ_match_object_class_debugZ_match_perms_debugr � constraints�ruletypeZ_match_object_classZ _match_permsr �roler( Z expressionZrolesr r �type_�typesr r �userZusersr )r �cr r r! �resultsZ sP � � �zConstraintQuery.results)r � __module__� __qualname__�__doc__r r r- r r1 r �bool�__annotations__r. r r r/ r r r r( r r r3 � __classcell__r r r r! r s $ r )r �re�typingr r Z descriptorsr r � exceptionr Zmixinsr r Z policyrepr r �queryr �utilr r r r r r! �<module> s
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