Add storage methods for federated device messages

This commit is contained in:
Mark Haines 2016-09-06 15:12:13 +01:00
parent 2ad72da931
commit e020834e4f

View file

@ -27,28 +27,89 @@ logger = logging.getLogger(__name__)
class DeviceInboxStore(SQLBaseStore):
@defer.inlineCallbacks
def add_messages_to_device_inbox(self, messages_by_user_then_device):
"""
def add_messages_to_device_inbox(self, local_messages_by_user_then_device,
remote_messages_by_destination):
"""Used to send messages from this server.
Args:
messages_by_user_and_device(dict):
sender_user_id(str): The ID of the user sending these messages.
local_messages_by_user_and_device(dict):
Dictionary of user_id to device_id to message.
remote_messages_by_destination(dict):
Dictionary of destination server_name to the EDU JSON to send.
Returns:
A deferred stream_id that resolves when the messages have been
inserted.
"""
def add_messages_to_device_federation_outbox(txn, now_ms, stream_id):
sql = (
"INSERT INTO device_federation_outbox"
" (destination, stream_id, queued_ts, messages_json)"
" VALUES (?,?,?,?)"
)
rows = []
for destination, edu in remote_messages_by_destination.items():
edu_json = ujson.dumps(edu)
rows.append((destination, stream_id, now_ms, edu_json))
txn.executemany(sql, rows)
def add_messages_txn(txn, now_ms, stream_id):
self._add_messages_to_local_device_inbox_txn(
txn, stream_id, local_messages_by_user_then_device
)
add_messages_to_device_federation_outbox(now_ms, stream_id)
with self._device_inbox_id_gen.get_next() as stream_id:
now_ms = self.clock.time_now_ms()
yield self.runInteraction(
"add_messages_to_device_inbox",
self._add_messages_to_device_inbox_txn,
add_messages_txn,
now_ms,
stream_id,
messages_by_user_then_device,
)
defer.returnValue(self._device_inbox_id_gen.get_current_token())
def _add_messages_to_device_inbox_txn(self, txn, stream_id,
messages_by_user_then_device):
@defer.inlineCallbacks
def add_messages_from_remote_to_device_inbox(
self, origin, message_id, local_messages_by_user_then_device
):
def add_messages_txn(txn, now_ms, stream_id):
already_inserted = self._simple_select_one_txn(
txn, table="device_federation_inbox",
keyvalues={"origin": origin, "message_id": message_id},
retcols=("message_id",),
allow_none=True,
)
if already_inserted is not None:
return
self._simple_insert_txn(
txn, table="device_federation_inbox",
values={
"origin": origin,
"message_id": message_id,
"received_ts": now_ms,
},
)
self._add_messages_to_local_device_inbox_txn(
txn, stream_id, local_messages_by_user_then_device
)
with self._device_inbox_id_gen.get_next() as stream_id:
now_ms = self.clock.time_now_ms()
yield self.runInteraction(
"add_messages_from_remote_to_device_inbox",
add_messages_txn,
now_ms,
stream_id,
)
def _add_messages_to_local_device_inbox_txn(self, txn, stream_id,
messages_by_user_then_device):
local_users_and_devices = set()
for user_id, messages_by_device in messages_by_user_then_device.items():
devices = messages_by_device.keys()
@ -177,3 +238,67 @@ class DeviceInboxStore(SQLBaseStore):
def get_to_device_stream_token(self):
return self._device_inbox_id_gen.get_current_token()
@defer.inlineCallbacks
def get_new_device_messages_for_remote_destination(
self, destination, last_stream_id, current_stream_id, limit=100
):
"""
Args:
destination(str): The name of the remote server.
last_stream_id(int): The last position of the device message stream
that the server sent up to.
current_stream_id(int): The current position of the device
message stream.
Returns:
Deferred ([dict], int): List of messages for the device and where
in the stream the messages got to.
"""
def get_new_messages_for_remote_destination_txn(txn):
sql = (
"SELECT stream_id, messages_json FROM device_federation_outbox"
" WHERE destination = ?"
" AND ? < stream_id AND stream_id <= ?"
" ORDER BY stream_id ASC"
" LIMIT ?"
)
txn.execute(sql, (
destination, last_stream_id, current_stream_id, limit
))
messages = []
for row in txn.fetchall():
stream_pos = row[0]
messages.append(ujson.loads(row[1]))
if len(messages) < limit:
stream_pos = current_stream_id
return (messages, stream_pos)
return self.runInteraction(
"get_new_device_messages_for_remote_destination",
get_new_messages_for_remote_destination_txn,
)
@defer.inlineCallbacks
def delete_device_messages_for_remote_destination(self, destination,
up_to_stream_id):
"""Used to delete messages when the remote destination acknowledges
their receipt.
Args:
destination(str): The destination server_name
up_to_stream_id(int): Where to delete messages up to.
Returns:
A deferred that resolves when the messages have been deleted.
"""
def delete_messages_for_remote_destination_txn(txn):
sql = (
"DELETE FROM device_federation_outbox"
" WHERE destination = ? AND"
" AND stream_id <= ?"
)
txn.execute(sql, (destination, up_to_stream_id))
return self.runInteraction(
"delete_device_messages_for_remote_destination",
delete_messages_for_remote_destination_txn
)