diff options
Diffstat (limited to 'lib/python2.7/site-packages/setools/mixins.py')
| -rwxr-xr-x[-rw-r--r--] | lib/python2.7/site-packages/setools/mixins.py | 125 |
1 files changed, 122 insertions, 3 deletions
diff --git a/lib/python2.7/site-packages/setools/mixins.py b/lib/python2.7/site-packages/setools/mixins.py index 99dc9ff..97e4fec 100644..100755 --- a/lib/python2.7/site-packages/setools/mixins.py +++ b/lib/python2.7/site-packages/setools/mixins.py @@ -20,6 +20,7 @@ import re from .descriptors import CriteriaDescriptor, CriteriaSetDescriptor +from .util import match_in_set, match_regex, match_range, match_regex_or_set class MatchAlias(object): @@ -29,6 +30,10 @@ class MatchAlias(object): alias = CriteriaDescriptor("alias_regex") alias_regex = False + def _match_alias_debug(self, log): + """Emit log debugging info for alias matching.""" + log.debug("Alias: {0.alias}, regex: {0.alias_regex}".format(self)) + def _match_alias(self, obj): """ Match the alias criteria @@ -41,7 +46,113 @@ class MatchAlias(object): # if there is no criteria, everything matches. return True - return self._match_in_set(obj.aliases(), self.alias, self.alias_regex) + return match_in_set(obj.aliases(), self.alias, self.alias_regex) + + +class MatchContext(object): + + """ + Mixin for matching contexts. + + Class attributes: + user The user to match in the context. + user_regex If true, regular expression matching + will be used on the user. + role The role to match in the context. + role_regex If true, regular expression matching + will be used on the role. + type_ The type to match in the context. + type_regex If true, regular expression matching + will be used on the type. + range_ The range to match in the context. + range_subset If true, the criteria will match if it + is a subset of the context's range. + range_overlap If true, the criteria will match if it + overlaps any of the context's range. + range_superset If true, the criteria will match if it + is a superset of the context's range. + range_proper If true, use proper superset/subset + on range matching operations. + No effect if not using set operations. + """ + + user = CriteriaDescriptor("user_regex", "lookup_user") + user_regex = False + role = CriteriaDescriptor("role_regex", "lookup_role") + role_regex = False + type_ = CriteriaDescriptor("type_regex", "lookup_type") + type_regex = False + range_ = CriteriaDescriptor(lookup_function="lookup_range") + range_overlap = False + range_subset = False + range_superset = False + range_proper = False + + def _match_context_debug(self, log): + """Emit log debugging info for context matching.""" + log.debug("User: {0.user!r}, regex: {0.user_regex}".format(self)) + log.debug("Role: {0.role!r}, regex: {0.role_regex}".format(self)) + log.debug("Type: {0.type_!r}, regex: {0.type_regex}".format(self)) + log.debug("Range: {0.range_!r}, subset: {0.range_subset}, overlap: {0.range_overlap}, " + "superset: {0.range_superset}, proper: {0.range_proper}".format(self)) + + def _match_context(self, context): + """ + Match the context criteria. + + Parameter: + obj An object with context attributes "user", "role", + "type_" and "range_". + """ + + if self.user and not match_regex( + context.user, + self.user, + self.user_regex): + return False + + if self.role and not match_regex( + context.role, + self.role, + self.role_regex): + return False + + if self.type_ and not match_regex( + context.type_, + self.type_, + self.type_regex): + return False + + if self.range_ and not match_range( + context.range_, + self.range_, + self.range_subset, + self.range_overlap, + self.range_superset, + self.range_proper): + return False + + return True + + +class MatchName(object): + + """Mixin for matching an object's name.""" + + name = CriteriaDescriptor("name_regex") + name_regex = False + + def _match_name_debug(self, log): + """Log debugging messages for name matching.""" + log.debug("Name: {0.name!r}, regex: {0.name_regex}".format(self)) + + def _match_name(self, obj): + """Match the object to the name criteria.""" + if not self.name: + # if there is no criteria, everything matches. + return True + + return match_regex(obj, self.name, self.name_regex) class MatchObjClass(object): @@ -51,6 +162,10 @@ class MatchObjClass(object): tclass = CriteriaSetDescriptor("tclass_regex", "lookup_class") tclass_regex = False + def _match_object_class_debug(self, log): + """Emit log debugging info for permission matching.""" + log.debug("Class: {0.tclass!r}, regex: {0.tclass_regex}".format(self)) + def _match_object_class(self, obj): """ Match the object class criteria @@ -77,6 +192,11 @@ class MatchPermission(object): perms_regex = False perms_subset = False + def _match_perms_debug(self, log): + """Emit log debugging info for permission matching.""" + log.debug("Perms: {0.perms!r}, regex: {0.perms_regex}, eq: {0.perms_equal}, " + "subset: {0.perms_subset!r}".format(self)) + def _match_perms(self, obj): """ Match the permission criteria @@ -92,5 +212,4 @@ class MatchPermission(object): if self.perms_subset: return obj.perms >= self.perms else: - return self._match_regex_or_set(obj.perms, self.perms, self.perms_equal, - self.perms_regex) + return match_regex_or_set(obj.perms, self.perms, self.perms_equal, self.perms_regex) |