diff options
| -rw-r--r-- | synapse/storage/__init__.py | 4 | ||||
| -rw-r--r-- | synapse/storage/end_to_end_keys.py | 133 | ||||
| -rw-r--r-- | synapse/storage/schema/delta/21/end_to_end_keys.sql | 35 |
3 files changed, 171 insertions, 1 deletions
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py index c137f47820..e089d81675 100644 --- a/synapse/storage/__init__.py +++ b/synapse/storage/__init__.py @@ -37,6 +37,7 @@ from .rejections import RejectionsStore from .state import StateStore from .signatures import SignatureStore from .filtering import FilteringStore +from .end_to_end_keys import EndToEndKeyStore import fnmatch @@ -51,7 +52,7 @@ logger = logging.getLogger(__name__) # Remember to update this number every time a change is made to database # schema files, so the users will be informed on server restarts. -SCHEMA_VERSION = 20 +SCHEMA_VERSION = 21 dir_path = os.path.abspath(os.path.dirname(__file__)) @@ -74,6 +75,7 @@ class DataStore(RoomMemberStore, RoomStore, PushRuleStore, ApplicationServiceTransactionStore, EventsStore, + EndToEndKeyStore, ): def __init__(self, hs): diff --git a/synapse/storage/end_to_end_keys.py b/synapse/storage/end_to_end_keys.py new file mode 100644 index 0000000000..936a64669c --- /dev/null +++ b/synapse/storage/end_to_end_keys.py @@ -0,0 +1,133 @@ +# -*- coding: utf-8 -*- +# Copyright 2015 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, valid_until, + 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, + "valid_until_ms": valid_until, + "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, time_now): + """ 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 = ( + "DELETE FROM e2e_one_time_keys_json" + " WHERE user_id = ? AND device_id = ? AND valid_until_ms < ?" + ) + txn.execute(sql, (user_id, device_id, time_now)) + 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 take_e2e_one_time_keys(self, query_list, time_now): + """Take a list of one time keys out of the database""" + def _take_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 = ?" + " AND valid_until_ms > ?" + " 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, time_now)) + 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( + "take_e2e_one_time_keys", _take_e2e_one_time_keys + ) diff --git a/synapse/storage/schema/delta/21/end_to_end_keys.sql b/synapse/storage/schema/delta/21/end_to_end_keys.sql new file mode 100644 index 0000000000..107d2e67c2 --- /dev/null +++ b/synapse/storage/schema/delta/21/end_to_end_keys.sql @@ -0,0 +1,35 @@ +/* Copyright 2015 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. + */ + + +CREATE TABLE IF NOT EXISTS e2e_device_keys_json ( + user_id TEXT NOT NULL, -- The user these keys are for. + device_id TEXT NOT NULL, -- Which of the user's devices these keys are for. + ts_added_ms BIGINT NOT NULL, -- When the keys were uploaded. + key_json TEXT NOT NULL, -- The keys for the device as a JSON blob. + CONSTRAINT uniqueness UNIQUE (user_id, device_id) +); + + +CREATE TABLE IF NOT EXISTS e2e_one_time_keys_json ( + user_id TEXT NOT NULL, -- The user this one-time key is for. + device_id TEXT NOT NULL, -- The device this one-time key is for. + algorithm TEXT NOT NULL, -- Which algorithm this one-time key is for. + key_id TEXT NOT NULL, -- An id for suppressing duplicate uploads. + ts_added_ms BIGINT NOT NULL, -- When this key was uploaded. + valid_until_ms BIGINT NOT NULL, -- When this key is valid until. + key_json TEXT NOT NULL, -- The key as a JSON blob. + CONSTRAINT uniqueness UNIQUE (user_id, device_id, algorithm, key_id) +); |