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from collections import defaultdict |
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from .profile_base import Profile |
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class ResolvableProfile(Profile): |
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def __init__(self, * args, ** kwargs): |
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super(ResolvableProfile, self).__init__(* args, ** kwargs) |
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self.resolved = False |
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def _controls_ids_to_controls(self, controls_manager, policy_id, control_id_list): |
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items = [controls_manager.get_control(policy_id, cid) for cid in control_id_list] |
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return items |
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def resolve_controls(self, controls_manager): |
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pass |
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def extend_by(self, extended_profile): |
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self.update_with(extended_profile) |
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def apply_filter(self, rules_by_id): |
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selections = set() |
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for rid in self.selected: |
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rule = rules_by_id[rid] |
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if not self.rule_filter(rule): |
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continue |
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selections.add(rid) |
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self.selected = list(selections) |
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def resolve(self, all_profiles, rules_by_id, controls_manager=None): |
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if self.resolved: |
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return |
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if controls_manager: |
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self.resolve_controls(controls_manager) |
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if self.extends: |
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if self.extends not in all_profiles: |
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msg = ( |
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"Profile {name} extends profile {extended}, but " |
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"only profiles {known_profiles} are available for resolution." |
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.format(name=self.id_, extended=self.extends, |
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known_profiles=list(all_profiles.keys()))) |
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raise RuntimeError(msg) |
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extended_profile = all_profiles[self.extends] |
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extended_profile.resolve(all_profiles, rules_by_id, controls_manager) |
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self.extend_by(extended_profile) |
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self.selected = [s for s in set(self.selected) if s not in self.unselected] |
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self.unselected = [] |
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self.extends = None |
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self.selected = sorted(self.selected) |
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for rid in self.selected: |
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if rid not in rules_by_id: |
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msg = ( |
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"Rule {rid} is selected by {profile}, but the rule is not available. " |
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"This may be caused by a discrepancy of prodtypes." |
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.format(rid=rid, profile=self.id_)) |
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raise ValueError(msg) |
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self.apply_filter(rules_by_id) |
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self.resolved = True |
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class ProfileWithInlinePolicies(ResolvableProfile): |
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def __init__(self, * args, ** kwargs): |
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super(ProfileWithInlinePolicies, self).__init__(* args, ** kwargs) |
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self.controls_by_policy = defaultdict(list) |
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def apply_selection(self, item): |
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# ":" is the delimiter for controls but not when the item is a variable |
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if ":" in item and "=" not in item: |
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policy_id, control_id = item.split(":", 1) |
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self.controls_by_policy[policy_id].append(control_id) |
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else: |
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super(ProfileWithInlinePolicies, self).apply_selection(item) |
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def _process_controls_ids_into_controls(self, controls_manager, policy_id, controls_ids): |
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controls = [] |
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for cid in controls_ids: |
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if not cid.startswith("all"): |
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controls.extend( |
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self._controls_ids_to_controls(controls_manager, policy_id, [cid])) |
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elif ":" in cid: |
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_, level_id = cid.split(":", 1) |
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controls.extend( |
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controls_manager.get_all_controls_of_level(policy_id, level_id)) |
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else: |
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controls.extend( |
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controls_manager.get_all_controls(policy_id)) |
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return controls |
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def resolve_controls(self, controls_manager): |
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self.policies = list(self.controls_by_policy.keys()) |
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for policy_id, controls_ids in self.controls_by_policy.items(): |
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controls = self._process_controls_ids_into_controls( |
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controls_manager, policy_id, controls_ids) |
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for c in controls: |
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self.update_with(c) |
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