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Add typing information to the device handler. (#8407)

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Patrick Cloke 2020-10-07 08:58:21 -04:00 committed by GitHub
parent 9ca6341969
commit b460a088c6
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4 changed files with 59 additions and 38 deletions
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1
changelog.d/8407.misc Normal file
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@ -0,0 +1 @@
Add typing information to the device handler.

1
mypy.ini
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@ -17,6 +17,7 @@ files =
synapse/federation,
synapse/handlers/auth.py,
synapse/handlers/cas_handler.py,
synapse/handlers/device.py,
synapse/handlers/directory.py,
synapse/handlers/events.py,
synapse/handlers/federation.py,

89
synapse/handlers/device.py
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@ -15,7 +15,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from typing import Any, Dict, List, Optional, Tuple
from typing import TYPE_CHECKING, Any, Dict, Iterable, List, Optional, Set, Tuple
from synapse.api import errors
from synapse.api.constants import EventTypes
@ -29,8 +29,10 @@ from synapse.api.errors import (
from synapse.logging.opentracing import log_kv, set_tag, trace
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.types import (
Collection,
JsonDict,
StreamToken,
UserID,
get_domain_from_id,
get_verify_key_from_cross_signing_key,
)
@ -42,13 +44,16 @@ from synapse.util.retryutils import NotRetryingDestination
from ._base import BaseHandler
if TYPE_CHECKING:
from synapse.app.homeserver import HomeServer
logger = logging.getLogger(__name__)
MAX_DEVICE_DISPLAY_NAME_LEN = 100
class DeviceWorkerHandler(BaseHandler):
def __init__(self, hs):
def __init__(self, hs: "HomeServer"):
super().__init__(hs)
self.hs = hs
@ -106,7 +111,9 @@ class DeviceWorkerHandler(BaseHandler):
@trace
@measure_func("device.get_user_ids_changed")
async def get_user_ids_changed(self, user_id: str, from_token: StreamToken):
async def get_user_ids_changed(
self, user_id: str, from_token: StreamToken
) -> JsonDict:
"""Get list of users that have had the devices updated, or have newly
joined a room, that `user_id` may be interested in.
"""
@ -222,8 +229,8 @@ class DeviceWorkerHandler(BaseHandler):
possibly_joined = possibly_changed & users_who_share_room
possibly_left = (possibly_changed | possibly_left) - users_who_share_room
else:
possibly_joined = []
possibly_left = []
possibly_joined = set()
possibly_left = set()
result = {"changed": list(possibly_joined), "left": list(possibly_left)}
@ -231,7 +238,7 @@ class DeviceWorkerHandler(BaseHandler):
return result
async def on_federation_query_user_devices(self, user_id):
async def on_federation_query_user_devices(self, user_id: str) -> JsonDict:
stream_id, devices = await self.store.get_e2e_device_keys_for_federation_query(
user_id
)
@ -250,7 +257,7 @@ class DeviceWorkerHandler(BaseHandler):
class DeviceHandler(DeviceWorkerHandler):
def __init__(self, hs):
def __init__(self, hs: "HomeServer"):
super().__init__(hs)
self.federation_sender = hs.get_federation_sender()
@ -265,7 +272,7 @@ class DeviceHandler(DeviceWorkerHandler):
hs.get_distributor().observe("user_left_room", self.user_left_room)
def _check_device_name_length(self, name: str):
def _check_device_name_length(self, name: Optional[str]):
"""
Checks whether a device name is longer than the maximum allowed length.
@ -284,8 +291,11 @@ class DeviceHandler(DeviceWorkerHandler):
)
async def check_device_registered(
self, user_id, device_id, initial_device_display_name=None
):
self,
user_id: str,
device_id: Optional[str],
initial_device_display_name: Optional[str] = None,
) -> str:
"""
If the given device has not been registered, register it with the
supplied display name.
@ -293,12 +303,11 @@ class DeviceHandler(DeviceWorkerHandler):
If no device_id is supplied, we make one up.
Args:
user_id (str): @user:id
device_id (str | None): device id supplied by client
initial_device_display_name (str | None): device display name from
client
user_id: @user:id
device_id: device id supplied by client
initial_device_display_name: device display name from client
Returns:
str: device id (generated if none was supplied)
device id (generated if none was supplied)
"""
self._check_device_name_length(initial_device_display_name)
@ -317,15 +326,15 @@ class DeviceHandler(DeviceWorkerHandler):
# times in case of a clash.
attempts = 0
while attempts < 5:
device_id = stringutils.random_string(10).upper()
new_device_id = stringutils.random_string(10).upper()
new_device = await self.store.store_device(
user_id=user_id,
device_id=device_id,
device_id=new_device_id,
initial_device_display_name=initial_device_display_name,
)
if new_device:
await self.notify_device_update(user_id, [device_id])
return device_id
await self.notify_device_update(user_id, [new_device_id])
return new_device_id
attempts += 1
raise errors.StoreError(500, "Couldn't generate a device ID.")
@ -434,7 +443,9 @@ class DeviceHandler(DeviceWorkerHandler):
@trace
@measure_func("notify_device_update")
async def notify_device_update(self, user_id, device_ids):
async def notify_device_update(
self, user_id: str, device_ids: Collection[str]
) -> None:
"""Notify that a user's device(s) has changed. Pokes the notifier, and
remote servers if the user is local.
"""
@ -446,7 +457,7 @@ class DeviceHandler(DeviceWorkerHandler):
user_id
)
hosts = set()
hosts = set() # type: Set[str]
if self.hs.is_mine_id(user_id):
hosts.update(get_domain_from_id(u) for u in users_who_share_room)
hosts.discard(self.server_name)
@ -498,7 +509,7 @@ class DeviceHandler(DeviceWorkerHandler):
self.notifier.on_new_event("device_list_key", position, users=[from_user_id])
async def user_left_room(self, user, room_id):
async def user_left_room(self, user: UserID, room_id: str) -> None:
user_id = user.to_string()
room_ids = await self.store.get_rooms_for_user(user_id)
if not room_ids:
@ -586,7 +597,9 @@ class DeviceHandler(DeviceWorkerHandler):
return {"success": True}
def _update_device_from_client_ips(device, client_ips):
def _update_device_from_client_ips(
device: Dict[str, Any], client_ips: Dict[Tuple[str, str], Dict[str, Any]]
) -> None:
ip = client_ips.get((device["user_id"], device["device_id"]), {})
device.update({"last_seen_ts": ip.get("last_seen"), "last_seen_ip": ip.get("ip")})
@ -594,7 +607,7 @@ def _update_device_from_client_ips(device, client_ips):
class DeviceListUpdater:
"Handles incoming device list updates from federation and updates the DB"
def __init__(self, hs, device_handler):
def __init__(self, hs: "HomeServer", device_handler: DeviceHandler):
self.store = hs.get_datastore()
self.federation = hs.get_federation_client()
self.clock = hs.get_clock()
@ -603,7 +616,9 @@ class DeviceListUpdater:
self._remote_edu_linearizer = Linearizer(name="remote_device_list")
# user_id -> list of updates waiting to be handled.
self._pending_updates = {}
self._pending_updates = (
{}
) # type: Dict[str, List[Tuple[str, str, Iterable[str], JsonDict]]]
# Recently seen stream ids. We don't bother keeping these in the DB,
# but they're useful to have them about to reduce the number of spurious
@ -626,7 +641,9 @@ class DeviceListUpdater:
)
@trace
async def incoming_device_list_update(self, origin, edu_content):
async def incoming_device_list_update(
self, origin: str, edu_content: JsonDict
) -> None:
"""Called on incoming device list update from federation. Responsible
for parsing the EDU and adding to pending updates list.
"""
@ -687,7 +704,7 @@ class DeviceListUpdater:
await self._handle_device_updates(user_id)
@measure_func("_incoming_device_list_update")
async def _handle_device_updates(self, user_id):
async def _handle_device_updates(self, user_id: str) -> None:
"Actually handle pending updates."
with (await self._remote_edu_linearizer.queue(user_id)):
@ -735,7 +752,9 @@ class DeviceListUpdater:
stream_id for _, stream_id, _, _ in pending_updates
)
async def _need_to_do_resync(self, user_id, updates):
async def _need_to_do_resync(
self, user_id: str, updates: Iterable[Tuple[str, str, Iterable[str], JsonDict]]
) -> bool:
"""Given a list of updates for a user figure out if we need to do a full
resync, or whether we have enough data that we can just apply the delta.
"""
@ -766,7 +785,7 @@ class DeviceListUpdater:
return False
@trace
async def _maybe_retry_device_resync(self):
async def _maybe_retry_device_resync(self) -> None:
"""Retry to resync device lists that are out of sync, except if another retry is
in progress.
"""
@ -809,7 +828,7 @@ class DeviceListUpdater:
async def user_device_resync(
self, user_id: str, mark_failed_as_stale: bool = True
) -> Optional[dict]:
) -> Optional[JsonDict]:
"""Fetches all devices for a user and updates the device cache with them.
Args:
@ -833,7 +852,7 @@ class DeviceListUpdater:
# it later.
await self.store.mark_remote_user_device_cache_as_stale(user_id)
return
return None
except (RequestSendFailed, HttpResponseException) as e:
logger.warning(
"Failed to handle device list update for %s: %s", user_id, e,
@ -850,12 +869,12 @@ class DeviceListUpdater:
# next time we get a device list update for this user_id.
# This makes it more likely that the device lists will
# eventually become consistent.
return
return None
except FederationDeniedError as e:
set_tag("error", True)
log_kv({"reason": "FederationDeniedError"})
logger.info(e)
return
return None
except Exception as e:
set_tag("error", True)
log_kv(
@ -868,7 +887,7 @@ class DeviceListUpdater:
# it later.
await self.store.mark_remote_user_device_cache_as_stale(user_id)
return
return None
log_kv({"result": result})
stream_id = result["stream_id"]
devices = result["devices"]
@ -929,7 +948,7 @@ class DeviceListUpdater:
user_id: str,
master_key: Optional[Dict[str, Any]],
self_signing_key: Optional[Dict[str, Any]],
) -> list:
) -> List[str]:
"""Process the given new master and self-signing key for the given remote user.
Args:

6
synapse/storage/databases/main/devices.py
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@ -911,7 +911,7 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore):
self._clock.looping_call(self._prune_old_outbound_device_pokes, 60 * 60 * 1000)
async def store_device(
self, user_id: str, device_id: str, initial_device_display_name: str
self, user_id: str, device_id: str, initial_device_display_name: Optional[str]
) -> bool:
"""Ensure the given device is known; add it to the store if not
@ -1029,7 +1029,7 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore):
)
async def update_remote_device_list_cache_entry(
self, user_id: str, device_id: str, content: JsonDict, stream_id: int
self, user_id: str, device_id: str, content: JsonDict, stream_id: str
) -> None:
"""Updates a single device in the cache of a remote user's devicelist.
@ -1057,7 +1057,7 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore):
user_id: str,
device_id: str,
content: JsonDict,
stream_id: int,
stream_id: str,
) -> None:
if content.get("deleted"):
self.db_pool.simple_delete_txn(