132 lines
4.8 KiB
Python
132 lines
4.8 KiB
Python
from utils.casbin import SyncedEnforcer
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import logging
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from utils.casbin.persist import batch_adapter
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from utils.casbin.model.policy_op import PolicyOp
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from utils.casbin.persist.adapters import update_adapter
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class DistributedEnforcer(SyncedEnforcer):
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"""DistributedEnforcer wraps SyncedEnforcer for dispatcher."""
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def __init__(self, model=None, adapter=None):
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self.logger = logging.getLogger()
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SyncedEnforcer.__init__(self, model, adapter)
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def add_policy_self(self, should_persist, sec, ptype, rules):
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"""
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AddPolicySelf provides a method for dispatcher to add authorization rules to the current policy.
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The function returns the rules affected and error.
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"""
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no_exists_policy = []
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for rule in rules:
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if not self.get_model().has_policy(sec, ptype, rule):
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no_exists_policy.append(rule)
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if should_persist:
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try:
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if isinstance(self.adapter, batch_adapter):
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self.adapter.add_policies(sec, ptype, rules)
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except Exception as e:
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self.logger.log("An error occurred: " + e)
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self.get_model().add_policies(sec, ptype, no_exists_policy)
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if sec == "g":
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try:
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self.build_incremental_role_links(PolicyOp.Policy_add, ptype, no_exists_policy)
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except Exception as e:
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self.logger.log("An exception occurred: " + e)
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return no_exists_policy
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return no_exists_policy
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def remove_policy_self(self, should_persist, sec, ptype, rules):
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"""
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remove_policy_self provides a method for dispatcher to remove policies from current policy.
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The function returns the rules affected and error.
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"""
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if(should_persist):
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try:
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if(isinstance(self.adapter, batch_adapter)):
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self.adapter.remove_policy(sec, ptype, rules)
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except Exception as e:
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self.logger.log("An exception occurred: " + e)
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effected = self.get_model().remove_policies_with_effected(sec, ptype, rules)
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if sec == "g":
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try:
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self.build_incremental_role_links(PolicyOp.Policy_remove, ptype, rules)
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except Exception as e:
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self.logger.log("An exception occurred: " + e)
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return effected
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return effected
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def remove_filtered_policy_self(self, should_persist, sec, ptype, field_index, *field_values):
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"""
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remove_filtered_policy_self provides a method for dispatcher to remove an authorization
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rule from the current policy,field filters can be specified.
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The function returns the rules affected and error.
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"""
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if should_persist:
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try:
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self.adapter.remove_filtered_policy(sec, ptype, field_index, field_values)
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except Exception as e:
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self.logger.log("An exception occurred: " + e)
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effects = self.get_model().remove_filtered_policy_returns_effects(sec, ptype, field_index, field_values)
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if sec == "g":
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try:
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self.build_incremental_role_links(PolicyOp.Policy_remove, ptype, effects)
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except Exception as e:
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self.logger.log("An exception occurred: " + e)
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return effects
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return effects
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def clear_policy_self(self, should_persist):
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"""
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clear_policy_self provides a method for dispatcher to clear all rules from the current policy.
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"""
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if should_persist:
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try:
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self.adapter.save_policy(None)
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except Exception as e:
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self.logger.log("An exception occurred: " + e)
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self.get_model().clear_policy()
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def update_policy_self(self, should_persist, sec, ptype, old_rule, new_rule):
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"""
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update_policy_self provides a method for dispatcher to update an authorization rule from the current policy.
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"""
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if should_persist:
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try:
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if isinstance(self.adapter, update_adapter):
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self.adapter.update_policy(sec, ptype, old_rule, new_rule)
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except Exception as e:
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self.logger.log("An exception occurred: " + e)
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return False
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rule_updated = self.get_model().update_policy(sec, ptype, old_rule, new_rule)
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if not rule_updated:
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return False
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if sec == "g":
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try:
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self.build_incremental_role_links(PolicyOp.Policy_remove, ptype, [old_rule])
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except Exception as e:
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return False
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try:
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self.build_incremental_role_links(PolicyOp.Policy_add, ptype, [new_rule])
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except Exception as e:
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return False
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return True |