123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125 |
- # -*- coding: utf-8 -*-
- # Copyright 2015, 2016 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
- class EndToEndKeyStore(SQLBaseStore):
- def set_e2e_device_keys(self, user_id, device_id, time_now, json_bytes):
- return self._simple_upsert(
- table="e2e_device_keys_json",
- keyvalues={
- "user_id": user_id,
- "device_id": device_id,
- },
- values={
- "ts_added_ms": time_now,
- "key_json": json_bytes,
- }
- )
- def get_e2e_device_keys(self, query_list):
- """Fetch a list of device keys.
- Args:
- query_list(list): List of pairs of user_ids and device_ids.
- Returns:
- Dict mapping from user-id to dict mapping from device_id to
- key json byte strings.
- """
- def _get_e2e_device_keys(txn):
- result = {}
- for user_id, device_id in query_list:
- user_result = result.setdefault(user_id, {})
- keyvalues = {"user_id": user_id}
- if device_id:
- keyvalues["device_id"] = device_id
- rows = self._simple_select_list_txn(
- txn, table="e2e_device_keys_json",
- keyvalues=keyvalues,
- retcols=["device_id", "key_json"]
- )
- for row in rows:
- user_result[row["device_id"]] = row["key_json"]
- return result
- return self.runInteraction("get_e2e_device_keys", _get_e2e_device_keys)
- def add_e2e_one_time_keys(self, user_id, device_id, time_now, key_list):
- def _add_e2e_one_time_keys(txn):
- for (algorithm, key_id, json_bytes) in key_list:
- self._simple_upsert_txn(
- txn, table="e2e_one_time_keys_json",
- keyvalues={
- "user_id": user_id,
- "device_id": device_id,
- "algorithm": algorithm,
- "key_id": key_id,
- },
- values={
- "ts_added_ms": time_now,
- "key_json": json_bytes,
- }
- )
- return self.runInteraction(
- "add_e2e_one_time_keys", _add_e2e_one_time_keys
- )
- def count_e2e_one_time_keys(self, user_id, device_id):
- """ Count the number of one time keys the server has for a device
- Returns:
- Dict mapping from algorithm to number of keys for that algorithm.
- """
- def _count_e2e_one_time_keys(txn):
- sql = (
- "SELECT algorithm, COUNT(key_id) FROM e2e_one_time_keys_json"
- " WHERE user_id = ? AND device_id = ?"
- " GROUP BY algorithm"
- )
- txn.execute(sql, (user_id, device_id))
- result = {}
- for algorithm, key_count in txn.fetchall():
- result[algorithm] = key_count
- return result
- return self.runInteraction(
- "count_e2e_one_time_keys", _count_e2e_one_time_keys
- )
- def claim_e2e_one_time_keys(self, query_list):
- """Take a list of one time keys out of the database"""
- def _claim_e2e_one_time_keys(txn):
- sql = (
- "SELECT key_id, key_json FROM e2e_one_time_keys_json"
- " WHERE user_id = ? AND device_id = ? AND algorithm = ?"
- " LIMIT 1"
- )
- result = {}
- delete = []
- for user_id, device_id, algorithm in query_list:
- user_result = result.setdefault(user_id, {})
- device_result = user_result.setdefault(device_id, {})
- txn.execute(sql, (user_id, device_id, algorithm))
- for key_id, key_json in txn.fetchall():
- device_result[algorithm + ":" + key_id] = key_json
- delete.append((user_id, device_id, algorithm, key_id))
- sql = (
- "DELETE FROM e2e_one_time_keys_json"
- " WHERE user_id = ? AND device_id = ? AND algorithm = ?"
- " AND key_id = ?"
- )
- for user_id, device_id, algorithm, key_id in delete:
- txn.execute(sql, (user_id, device_id, algorithm, key_id))
- return result
- return self.runInteraction(
- "claim_e2e_one_time_keys", _claim_e2e_one_time_keys
- )
|