synapse-product/synapse/storage/push_rule.py

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# -*- coding: utf-8 -*-
# Copyright 2014 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from ._base import SQLBaseStore
from synapse.util.caches.descriptors import cachedInlineCallbacks
from twisted.internet import defer
import logging
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import simplejson as json
logger = logging.getLogger(__name__)
class PushRuleStore(SQLBaseStore):
@cachedInlineCallbacks()
def get_push_rules_for_user(self, user_name):
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rows = yield self._simple_select_list(
table=PushRuleTable.table_name,
keyvalues={
"user_name": user_name,
},
retcols=PushRuleTable.fields,
desc="get_push_rules_enabled_for_user",
)
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rows.sort(
key=lambda row: (-int(row["priority_class"]), -int(row["priority"]))
)
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defer.returnValue(rows)
@cachedInlineCallbacks()
def get_push_rules_enabled_for_user(self, user_name):
results = yield self._simple_select_list(
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table=PushRuleEnableTable.table_name,
keyvalues={
'user_name': user_name
},
retcols=PushRuleEnableTable.fields,
desc="get_push_rules_enabled_for_user",
)
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defer.returnValue({
r['rule_id']: False if r['enabled'] == 0 else True for r in results
})
@defer.inlineCallbacks
def add_push_rule(self, before, after, **kwargs):
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vals = kwargs
if 'conditions' in vals:
vals['conditions'] = json.dumps(vals['conditions'])
if 'actions' in vals:
vals['actions'] = json.dumps(vals['actions'])
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# we could check the rest of the keys are valid column names
# but sqlite will do that anyway so I think it's just pointless.
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vals.pop("id", None)
if before or after:
ret = yield self.runInteraction(
"_add_push_rule_relative_txn",
self._add_push_rule_relative_txn,
before=before,
after=after,
**vals
)
defer.returnValue(ret)
else:
ret = yield self.runInteraction(
"_add_push_rule_highest_priority_txn",
self._add_push_rule_highest_priority_txn,
**vals
)
defer.returnValue(ret)
def _add_push_rule_relative_txn(self, txn, user_name, **kwargs):
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after = kwargs.pop("after", None)
relative_to_rule = kwargs.pop("before", after)
res = self._simple_select_one_txn(
txn,
table=PushRuleTable.table_name,
keyvalues={
"user_name": user_name,
"rule_id": relative_to_rule,
},
retcols=["priority_class", "priority"],
allow_none=True,
)
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if not res:
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raise RuleNotFoundException(
"before/after rule not found: %s" % (relative_to_rule,)
)
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priority_class = res["priority_class"]
base_rule_priority = res["priority"]
if 'priority_class' in kwargs and kwargs['priority_class'] != priority_class:
raise InconsistentRuleException(
"Given priority class does not match class of relative rule"
)
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new_rule = kwargs
new_rule.pop("before", None)
new_rule.pop("after", None)
new_rule['priority_class'] = priority_class
new_rule['user_name'] = user_name
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new_rule['id'] = self._push_rule_id_gen.get_next_txn(txn)
# check if the priority before/after is free
new_rule_priority = base_rule_priority
if after:
new_rule_priority -= 1
else:
new_rule_priority += 1
new_rule['priority'] = new_rule_priority
sql = (
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"SELECT COUNT(*) FROM " + PushRuleTable.table_name +
" WHERE user_name = ? AND priority_class = ? AND priority = ?"
)
txn.execute(sql, (user_name, priority_class, new_rule_priority))
res = txn.fetchall()
num_conflicting = res[0][0]
# if there are conflicting rules, bump everything
if num_conflicting:
sql = "UPDATE "+PushRuleTable.table_name+" SET priority = priority "
if after:
sql += "-1"
else:
sql += "+1"
sql += " WHERE user_name = ? AND priority_class = ? AND priority "
if after:
sql += "<= ?"
else:
sql += ">= ?"
txn.execute(sql, (user_name, priority_class, new_rule_priority))
txn.call_after(
self.get_push_rules_for_user.invalidate, (user_name,)
)
txn.call_after(
self.get_push_rules_enabled_for_user.invalidate, (user_name,)
)
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self._simple_insert_txn(
txn,
table=PushRuleTable.table_name,
values=new_rule,
)
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def _add_push_rule_highest_priority_txn(self, txn, user_name,
priority_class, **kwargs):
# find the highest priority rule in that class
sql = (
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"SELECT COUNT(*), MAX(priority) FROM " + PushRuleTable.table_name +
" WHERE user_name = ? and priority_class = ?"
)
txn.execute(sql, (user_name, priority_class))
res = txn.fetchall()
(how_many, highest_prio) = res[0]
new_prio = 0
if how_many > 0:
new_prio = highest_prio + 1
# 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)
new_rule['user_name'] = user_name
new_rule['priority_class'] = priority_class
new_rule['priority'] = new_prio
txn.call_after(
self.get_push_rules_for_user.invalidate, (user_name,)
)
txn.call_after(
self.get_push_rules_enabled_for_user.invalidate, (user_name,)
)
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self._simple_insert_txn(
txn,
table=PushRuleTable.table_name,
values=new_rule,
)
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@defer.inlineCallbacks
def delete_push_rule(self, user_name, rule_id):
"""
Delete a push rule. Args specify the row to be deleted and can be
any of the columns in the push_rule table, but below are the
standard ones
Args:
user_name (str): The matrix ID of the push rule owner
rule_id (str): The rule_id of the rule to be deleted
"""
yield self._simple_delete_one(
PushRuleTable.table_name,
{'user_name': user_name, 'rule_id': rule_id},
desc="delete_push_rule",
)
self.get_push_rules_for_user.invalidate((user_name,))
self.get_push_rules_enabled_for_user.invalidate((user_name,))
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@defer.inlineCallbacks
def set_push_rule_enabled(self, user_name, rule_id, enabled):
ret = yield self.runInteraction(
"_set_push_rule_enabled_txn",
self._set_push_rule_enabled_txn,
user_name, rule_id, enabled
)
defer.returnValue(ret)
def _set_push_rule_enabled_txn(self, txn, user_name, rule_id, enabled):
new_id = self._push_rules_enable_id_gen.get_next_txn(txn)
self._simple_upsert_txn(
txn,
PushRuleEnableTable.table_name,
{'user_name': user_name, 'rule_id': rule_id},
{'enabled': 1 if enabled else 0},
{'id': new_id},
)
txn.call_after(
self.get_push_rules_for_user.invalidate, (user_name,)
)
txn.call_after(
self.get_push_rules_enabled_for_user.invalidate, (user_name,)
)
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class RuleNotFoundException(Exception):
pass
class InconsistentRuleException(Exception):
pass
class PushRuleTable(object):
table_name = "push_rules"
fields = [
"id",
"user_name",
"rule_id",
"priority_class",
"priority",
"conditions",
"actions",
]
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class PushRuleEnableTable(object):
table_name = "push_rules_enable"
fields = [
"user_name",
"rule_id",
"enabled"
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]