329 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			329 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Python
		
	
	
| # -*- coding: utf-8 -*-
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| # Copyright 2014-2016 OpenMarket Ltd
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| #
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| # Licensed under the Apache License, Version 2.0 (the "License");
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| # you may not use this file except in compliance with the License.
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| # You may obtain a copy of the License at
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| #
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| #     http://www.apache.org/licenses/LICENSE-2.0
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| #
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| # Unless required by applicable law or agreed to in writing, software
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| # distributed under the License is distributed on an "AS IS" BASIS,
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| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| # See the License for the specific language governing permissions and
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| # limitations under the License.
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| 
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| from ._base import SQLBaseStore
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| from synapse.util.caches.descriptors import cachedInlineCallbacks
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| from twisted.internet import defer
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| 
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| import logging
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| import simplejson as json
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| 
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| logger = logging.getLogger(__name__)
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| 
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| 
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| class PushRuleStore(SQLBaseStore):
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|     @cachedInlineCallbacks()
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|     def get_push_rules_for_user(self, user_id):
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|         rows = yield self._simple_select_list(
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|             table="push_rules",
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|             keyvalues={
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|                 "user_name": user_id,
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|             },
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|             retcols=(
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|                 "user_name", "rule_id", "priority_class", "priority",
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|                 "conditions", "actions",
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|             ),
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|             desc="get_push_rules_enabled_for_user",
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|         )
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| 
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|         rows.sort(
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|             key=lambda row: (-int(row["priority_class"]), -int(row["priority"]))
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|         )
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| 
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|         defer.returnValue(rows)
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| 
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|     @cachedInlineCallbacks()
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|     def get_push_rules_enabled_for_user(self, user_id):
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|         results = yield self._simple_select_list(
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|             table="push_rules_enable",
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|             keyvalues={
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|                 'user_name': user_id
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|             },
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|             retcols=(
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|                 "user_name", "rule_id", "enabled",
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|             ),
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|             desc="get_push_rules_enabled_for_user",
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|         )
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|         defer.returnValue({
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|             r['rule_id']: False if r['enabled'] == 0 else True for r in results
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|         })
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| 
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|     @defer.inlineCallbacks
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|     def bulk_get_push_rules(self, user_ids):
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|         if not user_ids:
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|             defer.returnValue({})
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| 
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|         results = {}
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| 
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|         rows = yield self._simple_select_many_batch(
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|             table="push_rules",
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|             column="user_name",
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|             iterable=user_ids,
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|             retcols=("*",),
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|             desc="bulk_get_push_rules",
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|         )
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| 
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|         rows.sort(key=lambda e: (-e["priority_class"], -e["priority"]))
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| 
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|         for row in rows:
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|             results.setdefault(row['user_name'], []).append(row)
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|         defer.returnValue(results)
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| 
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|     @defer.inlineCallbacks
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|     def bulk_get_push_rules_enabled(self, user_ids):
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|         if not user_ids:
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|             defer.returnValue({})
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| 
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|         results = {}
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| 
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|         rows = yield self._simple_select_many_batch(
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|             table="push_rules_enable",
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|             column="user_name",
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|             iterable=user_ids,
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|             retcols=("user_name", "rule_id", "enabled",),
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|             desc="bulk_get_push_rules_enabled",
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|         )
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|         for row in rows:
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|             results.setdefault(row['user_name'], {})[row['rule_id']] = row['enabled']
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|         defer.returnValue(results)
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| 
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|     def add_push_rule(
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|         self, user_id, rule_id, priority_class, conditions, actions,
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|         before=None, after=None
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|     ):
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|         conditions_json = json.dumps(conditions)
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|         actions_json = json.dumps(actions)
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| 
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|         if before or after:
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|             return self.runInteraction(
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|                 "_add_push_rule_relative_txn",
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|                 self._add_push_rule_relative_txn,
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|                 user_id, rule_id, priority_class,
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|                 conditions_json, actions_json, before, after,
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|             )
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|         else:
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|             return self.runInteraction(
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|                 "_add_push_rule_highest_priority_txn",
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|                 self._add_push_rule_highest_priority_txn,
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|                 user_id, rule_id, priority_class,
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|                 conditions_json, actions_json,
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|             )
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| 
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|     def _add_push_rule_relative_txn(
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|         self, txn, user_id, rule_id, priority_class,
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|         conditions_json, actions_json, before, after
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|     ):
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|         # Lock the table since otherwise we'll have annoying races between the
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|         # SELECT here and the UPSERT below.
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|         self.database_engine.lock_table(txn, "push_rules")
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| 
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|         relative_to_rule = before or after
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| 
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|         res = self._simple_select_one_txn(
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|             txn,
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|             table="push_rules",
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|             keyvalues={
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|                 "user_name": user_id,
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|                 "rule_id": relative_to_rule,
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|             },
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|             retcols=["priority_class", "priority"],
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|             allow_none=True,
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|         )
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| 
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|         if not res:
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|             raise RuleNotFoundException(
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|                 "before/after rule not found: %s" % (relative_to_rule,)
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|             )
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| 
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|         base_priority_class = res["priority_class"]
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|         base_rule_priority = res["priority"]
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| 
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|         if base_priority_class != priority_class:
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|             raise InconsistentRuleException(
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|                 "Given priority class does not match class of relative rule"
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|             )
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| 
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|         if before:
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|             # Higher priority rules are executed first, So adding a rule before
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|             # a rule means giving it a higher priority than that rule.
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|             new_rule_priority = base_rule_priority + 1
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|         else:
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|             # We increment the priority of the existing rules to make space for
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|             # the new rule. Therefore if we want this rule to appear after
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|             # an existing rule we give it the priority of the existing rule,
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|             # and then increment the priority of the existing rule.
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|             new_rule_priority = base_rule_priority
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| 
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|         sql = (
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|             "UPDATE push_rules SET priority = priority + 1"
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|             " WHERE user_name = ? AND priority_class = ? AND priority >= ?"
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|         )
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| 
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|         txn.execute(sql, (user_id, priority_class, new_rule_priority))
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| 
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|         self._upsert_push_rule_txn(
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|             txn, user_id, rule_id, priority_class, new_rule_priority,
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|             conditions_json, actions_json,
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|         )
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| 
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|     def _add_push_rule_highest_priority_txn(
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|         self, txn, user_id, rule_id, priority_class,
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|         conditions_json, actions_json
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|     ):
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|         # Lock the table since otherwise we'll have annoying races between the
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|         # SELECT here and the UPSERT below.
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|         self.database_engine.lock_table(txn, "push_rules")
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| 
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|         # find the highest priority rule in that class
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|         sql = (
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|             "SELECT COUNT(*), MAX(priority) FROM push_rules"
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|             " WHERE user_name = ? and priority_class = ?"
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|         )
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|         txn.execute(sql, (user_id, priority_class))
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|         res = txn.fetchall()
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|         (how_many, highest_prio) = res[0]
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| 
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|         new_prio = 0
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|         if how_many > 0:
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|             new_prio = highest_prio + 1
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| 
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|         self._upsert_push_rule_txn(
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|             txn,
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|             user_id, rule_id, priority_class, new_prio,
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|             conditions_json, actions_json,
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|         )
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| 
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|     def _upsert_push_rule_txn(
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|         self, txn, user_id, rule_id, priority_class,
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|         priority, conditions_json, actions_json
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|     ):
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|         """Specialised version of _simple_upsert_txn that picks a push_rule_id
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|         using the _push_rule_id_gen if it needs to insert the rule. It assumes
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|         that the "push_rules" table is locked"""
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| 
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|         sql = (
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|             "UPDATE push_rules"
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|             " SET priority_class = ?, priority = ?, conditions = ?, actions = ?"
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|             " WHERE user_name = ? AND rule_id = ?"
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|         )
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| 
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|         txn.execute(sql, (
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|             priority_class, priority, conditions_json, actions_json,
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|             user_id, rule_id,
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|         ))
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| 
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|         if txn.rowcount == 0:
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|             # We didn't update a row with the given rule_id so insert one
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|             push_rule_id = self._push_rule_id_gen.get_next_txn(txn)
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| 
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|             self._simple_insert_txn(
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|                 txn,
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|                 table="push_rules",
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|                 values={
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|                     "id": push_rule_id,
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|                     "user_name": user_id,
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|                     "rule_id": rule_id,
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|                     "priority_class": priority_class,
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|                     "priority": priority,
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|                     "conditions": conditions_json,
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|                     "actions": actions_json,
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|                 },
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|             )
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| 
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|         txn.call_after(
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|             self.get_push_rules_for_user.invalidate, (user_id,)
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|         )
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|         txn.call_after(
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|             self.get_push_rules_enabled_for_user.invalidate, (user_id,)
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|         )
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| 
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|     @defer.inlineCallbacks
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|     def delete_push_rule(self, user_id, rule_id):
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|         """
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|         Delete a push rule. Args specify the row to be deleted and can be
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|         any of the columns in the push_rule table, but below are the
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|         standard ones
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| 
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|         Args:
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|             user_id (str): The matrix ID of the push rule owner
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|             rule_id (str): The rule_id of the rule to be deleted
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|         """
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|         yield self._simple_delete_one(
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|             "push_rules",
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|             {'user_name': user_id, 'rule_id': rule_id},
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|             desc="delete_push_rule",
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|         )
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| 
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|         self.get_push_rules_for_user.invalidate((user_id,))
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|         self.get_push_rules_enabled_for_user.invalidate((user_id,))
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| 
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|     @defer.inlineCallbacks
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|     def set_push_rule_enabled(self, user_id, rule_id, enabled):
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|         ret = yield self.runInteraction(
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|             "_set_push_rule_enabled_txn",
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|             self._set_push_rule_enabled_txn,
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|             user_id, rule_id, enabled
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|         )
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|         defer.returnValue(ret)
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| 
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|     def _set_push_rule_enabled_txn(self, txn, user_id, rule_id, enabled):
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|         new_id = self._push_rules_enable_id_gen.get_next_txn(txn)
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|         self._simple_upsert_txn(
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|             txn,
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|             "push_rules_enable",
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|             {'user_name': user_id, 'rule_id': rule_id},
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|             {'enabled': 1 if enabled else 0},
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|             {'id': new_id},
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|         )
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|         txn.call_after(
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|             self.get_push_rules_for_user.invalidate, (user_id,)
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|         )
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|         txn.call_after(
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|             self.get_push_rules_enabled_for_user.invalidate, (user_id,)
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|         )
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| 
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|     def set_push_rule_actions(self, user_id, rule_id, actions, is_default_rule):
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|         actions_json = json.dumps(actions)
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| 
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|         def set_push_rule_actions_txn(txn):
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|             if is_default_rule:
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|                 # Add a dummy rule to the rules table with the user specified
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|                 # actions.
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|                 priority_class = -1
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|                 priority = 1
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|                 self._upsert_push_rule_txn(
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|                     txn, user_id, rule_id, priority_class, priority,
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|                     "[]", actions_json
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|                 )
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|             else:
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|                 self._simple_update_one_txn(
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|                     txn,
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|                     "push_rules",
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|                     {'user_name': user_id, 'rule_id': rule_id},
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|                     {'actions': actions_json},
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|                 )
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| 
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|         return self.runInteraction(
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|             "set_push_rule_actions", set_push_rule_actions_txn,
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|         )
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| 
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| 
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| class RuleNotFoundException(Exception):
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|     pass
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| 
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| 
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| class InconsistentRuleException(Exception):
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|     pass
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