279 lines
		
	
	
		
			8.6 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			279 lines
		
	
	
		
			8.6 KiB
		
	
	
	
		
			Python
		
	
	
# -*- coding: utf-8 -*-
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# Copyright 2014 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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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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import logging
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import simplejson as json
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logger = logging.getLogger(__name__)
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class PushRuleStore(SQLBaseStore):
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    @cachedInlineCallbacks()
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    def get_push_rules_for_user(self, user_name):
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        rows = yield self._simple_select_list(
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            table=PushRuleTable.table_name,
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            keyvalues={
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                "user_name": user_name,
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            },
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            retcols=PushRuleTable.fields,
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            desc="get_push_rules_enabled_for_user",
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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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        defer.returnValue(rows)
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    @cachedInlineCallbacks()
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    def get_push_rules_enabled_for_user(self, user_name):
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        results = yield self._simple_select_list(
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            table=PushRuleEnableTable.table_name,
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            keyvalues={
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                'user_name': user_name
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            },
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            retcols=PushRuleEnableTable.fields,
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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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    @defer.inlineCallbacks
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    def add_push_rule(self, before, after, **kwargs):
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        vals = kwargs
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        if 'conditions' in vals:
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            vals['conditions'] = json.dumps(vals['conditions'])
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        if 'actions' in vals:
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            vals['actions'] = json.dumps(vals['actions'])
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        # we could check the rest of the keys are valid column names
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        # but sqlite will do that anyway so I think it's just pointless.
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        vals.pop("id", None)
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        if before or after:
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            ret = yield 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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                before=before,
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                after=after,
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                **vals
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            )
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            defer.returnValue(ret)
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        else:
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            ret = yield 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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                **vals
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            )
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            defer.returnValue(ret)
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    def _add_push_rule_relative_txn(self, txn, user_name, **kwargs):
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        after = kwargs.pop("after", None)
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        relative_to_rule = kwargs.pop("before", after)
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        res = self._simple_select_one_txn(
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            txn,
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            table=PushRuleTable.table_name,
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            keyvalues={
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                "user_name": user_name,
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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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        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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        priority_class = res["priority_class"]
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        base_rule_priority = res["priority"]
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        if 'priority_class' in kwargs and kwargs['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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        new_rule = kwargs
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        new_rule.pop("before", None)
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        new_rule.pop("after", None)
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        new_rule['priority_class'] = priority_class
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        new_rule['user_name'] = user_name
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        new_rule['id'] = self._push_rule_id_gen.get_next_txn(txn)
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        # check if the priority before/after is free
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        new_rule_priority = base_rule_priority
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        if after:
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            new_rule_priority -= 1
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        else:
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            new_rule_priority += 1
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        new_rule['priority'] = new_rule_priority
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        sql = (
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            "SELECT COUNT(*) FROM " + PushRuleTable.table_name +
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            " WHERE user_name = ? AND priority_class = ? AND priority = ?"
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        )
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        txn.execute(sql, (user_name, priority_class, new_rule_priority))
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        res = txn.fetchall()
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        num_conflicting = res[0][0]
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        # if there are conflicting rules, bump everything
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        if num_conflicting:
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            sql = "UPDATE "+PushRuleTable.table_name+" SET priority = priority "
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            if after:
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                sql += "-1"
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            else:
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                sql += "+1"
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            sql += " WHERE user_name = ? AND priority_class = ? AND priority "
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            if after:
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                sql += "<= ?"
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            else:
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                sql += ">= ?"
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            txn.execute(sql, (user_name, priority_class, new_rule_priority))
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        txn.call_after(
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            self.get_push_rules_for_user.invalidate, (user_name,)
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        )
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        txn.call_after(
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            self.get_push_rules_enabled_for_user.invalidate, (user_name,)
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        )
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        self._simple_insert_txn(
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            txn,
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            table=PushRuleTable.table_name,
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            values=new_rule,
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        )
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    def _add_push_rule_highest_priority_txn(self, txn, user_name,
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                                            priority_class, **kwargs):
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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 " + PushRuleTable.table_name +
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            " WHERE user_name = ? and priority_class = ?"
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        )
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        txn.execute(sql, (user_name, priority_class))
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        res = txn.fetchall()
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        (how_many, highest_prio) = res[0]
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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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        # and insert the new rule
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        new_rule = kwargs
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        new_rule['id'] = self._push_rule_id_gen.get_next_txn(txn)
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        new_rule['user_name'] = user_name
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        new_rule['priority_class'] = priority_class
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        new_rule['priority'] = new_prio
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        txn.call_after(
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            self.get_push_rules_for_user.invalidate, (user_name,)
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        )
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        txn.call_after(
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            self.get_push_rules_enabled_for_user.invalidate, (user_name,)
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        )
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        self._simple_insert_txn(
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            txn,
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            table=PushRuleTable.table_name,
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            values=new_rule,
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        )
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    @defer.inlineCallbacks
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    def delete_push_rule(self, user_name, 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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        Args:
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            user_name (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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            PushRuleTable.table_name,
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            {'user_name': user_name, 'rule_id': rule_id},
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            desc="delete_push_rule",
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        )
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        self.get_push_rules_for_user.invalidate((user_name,))
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        self.get_push_rules_enabled_for_user.invalidate((user_name,))
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    @defer.inlineCallbacks
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    def set_push_rule_enabled(self, user_name, 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_name, rule_id, enabled
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        )
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        defer.returnValue(ret)
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    def _set_push_rule_enabled_txn(self, txn, user_name, 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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            PushRuleEnableTable.table_name,
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            {'user_name': user_name, '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_name,)
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        )
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        txn.call_after(
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            self.get_push_rules_enabled_for_user.invalidate, (user_name,)
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        )
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class RuleNotFoundException(Exception):
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    pass
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class InconsistentRuleException(Exception):
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    pass
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class PushRuleTable(object):
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    table_name = "push_rules"
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    fields = [
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        "id",
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        "user_name",
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        "rule_id",
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        "priority_class",
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        "priority",
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        "conditions",
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        "actions",
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    ]
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class PushRuleEnableTable(object):
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    table_name = "push_rules_enable"
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    fields = [
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        "user_name",
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        "rule_id",
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        "enabled"
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    ]
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