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add storage docstring; remove unused set_e2e_room_keys

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This commit is contained in:
Matthew Hodgson 2017-12-24 16:44:18 +00:00 committed by Hubert Chathi
parent ca0b052307
commit 8d14598e90
1 changed files with 83 additions and 36 deletions
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119
synapse/storage/e2e_room_keys.py
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@ -22,6 +22,22 @@ class EndToEndRoomKeyStore(SQLBaseStore):
@defer.inlineCallbacks
def get_e2e_room_key(self, user_id, version, room_id, session_id):
"""Get the encrypted E2E room key for a given session from a given
backup version of room_keys. We only store the 'best' room key for a given
session at a given time, as determined by the handler.
Args:
user_id(str): the user whose backup we're querying
version(str): the version ID of the backup for the set of keys we're querying
room_id(str): the ID of the room whose keys we're querying.
This is a bit redundant as it's implied by the session_id, but
we include for consistency with the rest of the API.
session_id(str): the session whose room_key we're querying.
Returns:
A deferred dict giving the session_data and message metadata for
this room key.
"""
row = yield self._simple_select_one(
table="e2e_room_keys",
@ -43,6 +59,17 @@ class EndToEndRoomKeyStore(SQLBaseStore):
defer.returnValue(row)
def set_e2e_room_key(self, user_id, version, room_id, session_id, room_key):
"""Replaces or inserts the encrypted E2E room key for a given session in
a given backup
Args:
user_id(str): the user whose backup we're setting
version(str): the version ID of the backup we're updating
room_id(str): the ID of the room whose keys we're setting
session_id(str): the session whose room_key we're setting
Raises:
StoreError if stuff goes wrong, probably
"""
yield self._simple_upsert(
table="e2e_room_keys",
@ -61,46 +88,27 @@ class EndToEndRoomKeyStore(SQLBaseStore):
lock=False,
)
# XXX: this isn't currently used and isn't tested anywhere
# it could be used in future for bulk-uploading new versions of room_keys
# for a user or something though.
def set_e2e_room_keys(self, user_id, version, room_keys):
def _set_e2e_room_keys_txn(txn):
values = []
for room_id in room_keys['rooms']:
for session_id in room_keys['rooms'][room_id]['sessions']:
session = room_keys['rooms'][room_id]['sessions'][session_id]
values.append(
{
"user_id": user_id,
"room_id": room_id,
"session_id": session_id,
"version": version,
"first_message_index": session['first_message_index'],
"forwarded_count": session['forwarded_count'],
"is_verified": session['is_verified'],
"session_data": session['session_data'],
}
)
self._simple_insert_many_txn(
txn,
table="e2e_room_keys",
values=values
)
return True
return self.runInteraction(
"set_e2e_room_keys", _set_e2e_room_keys_txn
)
@defer.inlineCallbacks
def get_e2e_room_keys(
self, user_id, version, room_id=None, session_id=None
):
"""Bulk get the E2E room keys for a given backup, optionally filtered to a given
room, or a given session.
Args:
user_id(str): the user whose backup we're querying
version(str): the version ID of the backup for the set of keys we're querying
room_id(str): Optional. the ID of the room whose keys we're querying, if any.
If not specified, we return the keys for all the rooms in the backup.
session_id(str): Optional. the session whose room_key we're querying, if any.
If specified, we also require the room_id to be specified.
If not specified, we return all the keys in this version of
the backup (or for the specified room)
Returns:
A deferred list of dicts giving the session_data and message metadata for
these room keys.
"""
keyvalues = {
"user_id": user_id,
@ -142,6 +150,22 @@ class EndToEndRoomKeyStore(SQLBaseStore):
def delete_e2e_room_keys(
self, user_id, version, room_id=None, session_id=None
):
"""Bulk delete the E2E room keys for a given backup, optionally filtered to a given
room or a given session.
Args:
user_id(str): the user whose backup we're deleting from
version(str): the version ID of the backup for the set of keys we're deleting
room_id(str): Optional. the ID of the room whose keys we're deleting, if any.
If not specified, we delete the keys for all the rooms in the backup.
session_id(str): Optional. the session whose room_key we're querying, if any.
If specified, we also require the room_id to be specified.
If not specified, we delete all the keys in this version of
the backup (or for the specified room)
Returns:
A deferred of the deletion transaction
"""
keyvalues = {
"user_id": user_id,
@ -160,6 +184,15 @@ class EndToEndRoomKeyStore(SQLBaseStore):
@defer.inlineCallbacks
def get_e2e_room_keys_version_info(self, user_id, version):
"""Get info etadata about a given version of our room_keys backup
Args:
user_id(str): the user whose backup we're querying
version(str): the version ID of the backup we're querying about
Returns:
A deferred dict giving the info metadata for this backup version
"""
row = yield self._simple_select_one(
table="e2e_room_keys_versions",
@ -181,6 +214,13 @@ class EndToEndRoomKeyStore(SQLBaseStore):
def create_e2e_room_keys_version(self, user_id, info):
"""Atomically creates a new version of this user's e2e_room_keys store
with the given version info.
Args:
user_id(str): the user whose backup we're creating a version
info(dict): the info about the backup version to be created
Returns:
A deferred string for the newly created version ID
"""
def _create_e2e_room_keys_version_txn(txn):
@ -214,6 +254,13 @@ class EndToEndRoomKeyStore(SQLBaseStore):
@defer.inlineCallbacks
def delete_e2e_room_keys_version(self, user_id, version):
"""Delete a given backup version of the user's room keys.
Doesn't delete their actual key data.
Args:
user_id(str): the user whose backup version we're deleting
version(str): the ID of the backup version we're deleting
"""
keyvalues = {
"user_id": user_id,