509318396 ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ 3 ^@sdZddlZddlmZmZddlmZddlmZGdddZ Gdd d e Z Gd d d eZ Gd d d e Z Gddde Z Gddde ZGdddZdS)z SETools descriptors. These classes override how a class's attributes are get/set/deleted. This is how the @property decorator works. See https://docs.python.org/3/howto/descriptor.html for more details. N)ABCabstractmethod) defaultdict)WeakKeyDictionaryc@s,eZdZdZd ddZd ddZddZdS) CriteriaDescriptora Single item criteria descriptor. Keyword Parameters: name_regex The name of instance's regex setting attribute; used as name_regex below. If unset, regular expressions will never be used. lookup_function The name of the SELinuxPolicy lookup function, e.g. lookup_type or lookup_boolean. default_value The default value of the criteria. The default is None. enum_class The class of enumeration which supports a lookup class method. Read-only instance attribute use (obj parameter): policy The instance of SELinuxPolicy name_regex This attribute is read to determine if the criteria should be looked up or compiled into a regex. If the attribute does not exist, False is assumed. NcCs$||_||_||_||_t|_dS)N)regex default_valuelookup_function enum_classr instances)selfZ name_regexr rr r #/usr/lib64/python3.6/descriptors.py__init__Cs zCriteriaDescriptor.__init__cCs|dkr |S|jj||jS)N)r setdefaultr)r objobjtyper r r__get__RszCriteriaDescriptor.__get__cCs|sd|j|<nn|jr6t||jdr6tj||j|<nH|jrZt|j|j}|||j|<n$|jrt|jj||j|<n ||j|<dS)NF) r rgetattrrecompiler policyr lookup)r rvaluerr r r__set__Xs zCriteriaDescriptor.__set__)NNNN)N)__name__ __module__ __qualname____doc__rrrr r r rr+s  rc@seZdZdZddZdS)CriteriaSetDescriptorz!Descriptor for a set of criteria.cs|sdj|<njr6t|jdr6tj|j|<ndjrht|jjtfdd|Dj|<n2jrtfdd|Dj|<nt|j|<dS)NFc3s|]}|VqdS)Nr ).0v)rr r qsz0CriteriaSetDescriptor.__set__..c3s|]}jj|VqdS)N)r r)r r!)r r rr"ss) r rrrrr rsetr )r rrr )rr rrjs zCriteriaSetDescriptor.__set__N)rrrrrr r r rrfsrc@s:eZdZdZddZd ddZeddZed d ZdS) NetworkXGraphEdgeDescriptora' Descriptor abstract base class for NetworkX graph edge attributes. Parameter: name The edge property name Instance class attribute use (obj parameter): G The NetworkX graph source The edge's source node target The edge's target node cCs ||_dS)N)name)r propnamer r rrsz$NetworkXGraphEdgeDescriptor.__init__Nc CsH|dkr |Sy|j|j|j|jStk rBt|jYnXdS)N)Gsourcetargetr%KeyErrorAttributeError)r rrr r rrs z#NetworkXGraphEdgeDescriptor.__get__cCsdS)Nr )r rrr r rrsz#NetworkXGraphEdgeDescriptor.__set__cCsdS)Nr )r rr r r __delete__sz&NetworkXGraphEdgeDescriptor.__delete__)N) rrrrrrrrr,r r r rr$s   r$c@s eZdZdZddZddZdS) EdgeAttrDictz7A descriptor for edge attributes that are dictionaries.cCs:|dkr&tt|j|j|j|j<ntdj|jdS)Nz0{0} dictionaries should not be assigned directly)rlistr'r(r)r%r+format)r rrr r rrszEdgeAttrDict.__set__cCs |j|j|j|jjdS)N)r'r(r)r%clear)r rr r rr,szEdgeAttrDict.__delete__N)rrrrrr,r r r rr-sr-c@s eZdZdZddZddZdS)EdgeAttrIntMaxz A descriptor for edge attributes that are non-negative integers that always keep the max assigned value until re-initialized. cCs\|dkr"d|j|j|j|j<n6|j|j|j|j}t|||j|j|j|j<dS)Nr)r'r(r)r%max)r rrZ current_valuer r rrszEdgeAttrIntMax.__set__cCsd|j|j|j|j<dS)Nr)r'r(r)r%)r rr r rr,szEdgeAttrIntMax.__delete__N)rrrrrr,r r r rr1sr1c@s eZdZdZddZddZdS) EdgeAttrListz0A descriptor for edge attributes that are lists.cCs6|dkr"g|j|j|j|j<ntdj|jdS)Nz){0} lists should not be assigned directly)r'r(r)r% ValueErrorr/)r rrr r rrszEdgeAttrList.__set__cCs |j|j|j|jjdS)N)r'r(r)r%r0)r rr r rr,szEdgeAttrList.__delete__N)rrrrrr,r r r rr3sr3c@s2eZdZdZddZd ddZddZd d ZdS) PermissionMapDescriptoraN Descriptor for Permission Map mappings. Parameter: name The map setting name. validator A callable for validating the setting. Instance class attribute use (obj parameter): perm_map The full permission map. class_ The mapping's object class perm The mapping's permission cCs||_||_dS)N)r% validator)r r&r6r r rrsz PermissionMapDescriptor.__init__NcCs$|dkr |S|j|j|j|jS)N)perm_mapclass_permr%)r rrr r rrszPermissionMapDescriptor.__get__cCs"|j||j|j|j|j<dS)N)r6r7r8r9r%)r rrr r rrszPermissionMapDescriptor.__set__cCstdS)N)r+)r rr r rr,sz"PermissionMapDescriptor.__delete__)N)rrrrrrrr,r r r rr5s   r5)rrabcrr collectionsrweakrefrrrr$r-r1r3r5r r r rs  ;#