214 lines
6.9 KiB
Python
214 lines
6.9 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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import collections
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from ._base import SQLBaseStore, Table
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from twisted.internet import defer
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import logging
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import copy
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import json
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logger = logging.getLogger(__name__)
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class PushRuleStore(SQLBaseStore):
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@defer.inlineCallbacks
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def get_push_rules_for_user_name(self, user_name):
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sql = (
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"SELECT "+",".join(PushRuleTable.fields)+" "
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"FROM "+PushRuleTable.table_name+" "
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"WHERE user_name = ? "
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"ORDER BY priority_class DESC, priority DESC"
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)
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rows = yield self._execute(None, sql, user_name)
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dicts = []
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for r in rows:
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d = {}
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for i, f in enumerate(PushRuleTable.fields):
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d[f] = r[i]
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dicts.append(d)
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defer.returnValue(dicts)
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@defer.inlineCallbacks
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def add_push_rule(self, before, after, **kwargs):
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vals = copy.copy(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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if 'id' in vals:
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del vals['id']
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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 = None
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relative_to_rule = None
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if 'after' in kwargs and kwargs['after']:
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after = kwargs['after']
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relative_to_rule = after
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if 'before' in kwargs and kwargs['before']:
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relative_to_rule = kwargs['before']
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# get the priority of the rule we're inserting after/before
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sql = (
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"SELECT priority_class, priority FROM ? "
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"WHERE user_name = ? and rule_id = ?" % (PushRuleTable.table_name,)
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)
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txn.execute(sql, (user_name, relative_to_rule))
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res = txn.fetchall()
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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, base_rule_priority = res[0]
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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 = copy.copy(kwargs)
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if 'before' in new_rule:
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del new_rule['before']
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if 'after' in new_rule:
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del new_rule['after']
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new_rule['priority_class'] = priority_class
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new_rule['user_name'] = user_name
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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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# now insert the new rule
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sql = "INSERT OR REPLACE INTO "+PushRuleTable.table_name+" ("
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sql += ",".join(new_rule.keys())+") VALUES ("
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sql += ", ".join(["?" for _ in new_rule.keys()])+")"
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txn.execute(sql, new_rule.values())
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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 = copy.copy(kwargs)
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if 'id' in new_rule:
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del new_rule['id']
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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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sql = "INSERT OR REPLACE INTO "+PushRuleTable.table_name+" ("
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sql += ",".join(new_rule.keys())+") VALUES ("
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sql += ", ".join(["?" for _ in new_rule.keys()])+")"
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txn.execute(sql, new_rule.values())
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@defer.inlineCallbacks
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def delete_push_rule(self, user_name, rule_id, **kwargs):
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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(PushRuleTable.table_name, kwargs)
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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(Table):
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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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EntryType = collections.namedtuple("PushRuleEntry", fields)
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