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Convert the registration handler to async/await.
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@clokep
clokep committed Jun 5, 2020
1 parent 737b4a9 commit 51bca25
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Showing 3 changed files with 48 additions and 68 deletions.
1 change: 1 addition & 0 deletions changelog.d/7649.misc
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Convert registration handler to async/await.
107 changes: 41 additions & 66 deletions synapse/handlers/register.py
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Original file line number Diff line number Diff line change
Expand Up @@ -16,8 +16,6 @@
"""Contains functions for registering clients."""
import logging

from twisted.internet import defer

from synapse import types
from synapse.api.constants import MAX_USERID_LENGTH, LoginType
from synapse.api.errors import AuthError, Codes, ConsentNotGivenError, SynapseError
Expand Down Expand Up @@ -75,8 +73,9 @@ def __init__(self, hs):

self.session_lifetime = hs.config.session_lifetime

@defer.inlineCallbacks
def check_username(self, localpart, guest_access_token=None, assigned_user_id=None):
async def check_username(
self, localpart, guest_access_token=None, assigned_user_id=None
):
if types.contains_invalid_mxid_characters(localpart):
raise SynapseError(
400,
Expand Down Expand Up @@ -113,13 +112,13 @@ def check_username(self, localpart, guest_access_token=None, assigned_user_id=No
Codes.INVALID_USERNAME,
)

users = yield self.store.get_users_by_id_case_insensitive(user_id)
users = await self.store.get_users_by_id_case_insensitive(user_id)
if users:
if not guest_access_token:
raise SynapseError(
400, "User ID already taken.", errcode=Codes.USER_IN_USE
)
user_data = yield self.auth.get_user_by_access_token(guest_access_token)
user_data = await self.auth.get_user_by_access_token(guest_access_token)
if not user_data["is_guest"] or user_data["user"].localpart != localpart:
raise AuthError(
403,
Expand All @@ -137,8 +136,7 @@ def check_username(self, localpart, guest_access_token=None, assigned_user_id=No
except ValueError:
pass

@defer.inlineCallbacks
def register_user(
async def register_user(
self,
localpart=None,
password_hash=None,
Expand Down Expand Up @@ -169,18 +167,18 @@ def register_user(
by_admin (bool): True if this registration is being made via the
admin api, otherwise False.
Returns:
Deferred[str]: user_id
str: user_id
Raises:
SynapseError if there was a problem registering.
"""
yield self.check_registration_ratelimit(address)
self.check_registration_ratelimit(address)

# do not check_auth_blocking if the call is coming through the Admin API
if not by_admin:
yield self.auth.check_auth_blocking(threepid=threepid)
await self.auth.check_auth_blocking(threepid=threepid)

if localpart is not None:
yield self.check_username(localpart, guest_access_token=guest_access_token)
await self.check_username(localpart, guest_access_token=guest_access_token)

was_guest = guest_access_token is not None

Expand All @@ -194,7 +192,7 @@ def register_user(
elif default_display_name is None:
default_display_name = localpart

yield self.register_with_store(
await self.register_with_store(
user_id=user_id,
password_hash=password_hash,
was_guest=was_guest,
Expand All @@ -206,11 +204,9 @@ def register_user(
)

if self.hs.config.user_directory_search_all_users:
profile = yield self.store.get_profileinfo(localpart)
yield defer.ensureDeferred(
self.user_directory_handler.handle_local_profile_change(
user_id, profile
)
profile = await self.store.get_profileinfo(localpart)
await self.user_directory_handler.handle_local_profile_change(
user_id, profile
)

else:
Expand All @@ -222,14 +218,14 @@ def register_user(
if fail_count > 10:
raise SynapseError(500, "Unable to find a suitable guest user ID")

localpart = yield self._generate_user_id()
localpart = await self._generate_user_id()
user = UserID(localpart, self.hs.hostname)
user_id = user.to_string()
yield self.check_user_id_not_appservice_exclusive(user_id)
self.check_user_id_not_appservice_exclusive(user_id)
if default_display_name is None:
default_display_name = localpart
try:
yield self.register_with_store(
await self.register_with_store(
user_id=user_id,
password_hash=password_hash,
make_guest=make_guest,
Expand All @@ -252,7 +248,7 @@ def register_user(
user_id,
)
else:
yield defer.ensureDeferred(self._auto_join_rooms(user_id))
await self._auto_join_rooms(user_id)
else:
logger.info(
"Skipping auto-join for %s because consent is required at registration",
Expand All @@ -270,7 +266,7 @@ def register_user(
}

# Bind email to new account
yield self._register_email_threepid(user_id, threepid_dict, None)
await self._register_email_threepid(user_id, threepid_dict, None)

return user_id

Expand Down Expand Up @@ -335,8 +331,7 @@ async def post_consent_actions(self, user_id):
"""
await self._auto_join_rooms(user_id)

@defer.inlineCallbacks
def appservice_register(self, user_localpart, as_token):
async def appservice_register(self, user_localpart, as_token):
user = UserID(user_localpart, self.hs.hostname)
user_id = user.to_string()
service = self.store.get_app_service_by_token(as_token)
Expand All @@ -351,11 +346,9 @@ def appservice_register(self, user_localpart, as_token):

service_id = service.id if service.is_exclusive_user(user_id) else None

yield self.check_user_id_not_appservice_exclusive(
user_id, allowed_appservice=service
)
self.check_user_id_not_appservice_exclusive(user_id, allowed_appservice=service)

yield self.register_with_store(
await self.register_with_store(
user_id=user_id,
password_hash="",
appservice_id=service_id,
Expand Down Expand Up @@ -387,13 +380,12 @@ def check_user_id_not_appservice_exclusive(self, user_id, allowed_appservice=Non
errcode=Codes.EXCLUSIVE,
)

@defer.inlineCallbacks
def _generate_user_id(self):
async def _generate_user_id(self):
if self._next_generated_user_id is None:
with (yield self._generate_user_id_linearizer.queue(())):
with await self._generate_user_id_linearizer.queue(()):
if self._next_generated_user_id is None:
self._next_generated_user_id = (
yield self.store.find_next_generated_user_id_localpart()
await self.store.find_next_generated_user_id_localpart()
)

id = self._next_generated_user_id
Expand Down Expand Up @@ -496,8 +488,9 @@ def register_with_store(
user_type=user_type,
)

@defer.inlineCallbacks
def register_device(self, user_id, device_id, initial_display_name, is_guest=False):
async def register_device(
self, user_id, device_id, initial_display_name, is_guest=False
):
"""Register a device for a user and generate an access token.
The access token will be limited by the homeserver's session_lifetime config.
Expand All @@ -511,11 +504,11 @@ def register_device(self, user_id, device_id, initial_display_name, is_guest=Fal
is_guest (bool): Whether this is a guest account
Returns:
defer.Deferred[tuple[str, str]]: Tuple of device ID and access token
tuple[str, str]: Tuple of device ID and access token
"""

if self.hs.config.worker_app:
r = yield self._register_device_client(
r = await self._register_device_client(
user_id=user_id,
device_id=device_id,
initial_display_name=initial_display_name,
Expand All @@ -531,7 +524,7 @@ def register_device(self, user_id, device_id, initial_display_name, is_guest=Fal
)
valid_until_ms = self.clock.time_msec() + self.session_lifetime

device_id = yield self.device_handler.check_device_registered(
device_id = await self.device_handler.check_device_registered(
user_id, device_id, initial_display_name
)
if is_guest:
Expand All @@ -540,10 +533,8 @@ def register_device(self, user_id, device_id, initial_display_name, is_guest=Fal
user_id, ["guest = true"]
)
else:
access_token = yield defer.ensureDeferred(
self._auth_handler.get_access_token_for_user_id(
user_id, device_id=device_id, valid_until_ms=valid_until_ms
)
access_token = await self._auth_handler.get_access_token_for_user_id(
user_id, device_id=device_id, valid_until_ms=valid_until_ms
)

return (device_id, access_token)
Expand Down Expand Up @@ -594,8 +585,7 @@ async def _on_user_consented(self, user_id, consent_version):
await self.store.user_set_consent_version(user_id, consent_version)
await self.post_consent_actions(user_id)

@defer.inlineCallbacks
def _register_email_threepid(self, user_id, threepid, token):
async def _register_email_threepid(self, user_id, threepid, token):
"""Add an email address as a 3pid identifier
Also adds an email pusher for the email address, if configured in the
Expand All @@ -608,22 +598,15 @@ def _register_email_threepid(self, user_id, threepid, token):
threepid (object): m.login.email.identity auth response
token (str|None): access_token for the user, or None if not logged
in.
Returns:
defer.Deferred:
"""
reqd = ("medium", "address", "validated_at")
if any(x not in threepid for x in reqd):
# This will only happen if the ID server returns a malformed response
logger.info("Can't add incomplete 3pid")
return

yield defer.ensureDeferred(
self._auth_handler.add_threepid(
user_id,
threepid["medium"],
threepid["address"],
threepid["validated_at"],
)
await self._auth_handler.add_threepid(
user_id, threepid["medium"], threepid["address"], threepid["validated_at"],
)

# And we add an email pusher for them by default, but only
Expand All @@ -639,10 +622,10 @@ def _register_email_threepid(self, user_id, threepid, token):
# It would really make more sense for this to be passed
# up when the access token is saved, but that's quite an
# invasive change I'd rather do separately.
user_tuple = yield self.store.get_user_by_access_token(token)
user_tuple = await self.store.get_user_by_access_token(token)
token_id = user_tuple["token_id"]

yield self.pusher_pool.add_pusher(
await self.pusher_pool.add_pusher(
user_id=user_id,
access_token=token_id,
kind="email",
Expand All @@ -654,17 +637,14 @@ def _register_email_threepid(self, user_id, threepid, token):
data={},
)

@defer.inlineCallbacks
def _register_msisdn_threepid(self, user_id, threepid):
async def _register_msisdn_threepid(self, user_id, threepid):
"""Add a phone number as a 3pid identifier
Must be called on master.
Args:
user_id (str): id of user
threepid (object): m.login.msisdn auth response
Returns:
defer.Deferred:
"""
try:
assert_params_in_dict(threepid, ["medium", "address", "validated_at"])
Expand All @@ -675,11 +655,6 @@ def _register_msisdn_threepid(self, user_id, threepid):
return None
raise

yield defer.ensureDeferred(
self._auth_handler.add_threepid(
user_id,
threepid["medium"],
threepid["address"],
threepid["validated_at"],
)
await self._auth_handler.add_threepid(
user_id, threepid["medium"], threepid["address"], threepid["validated_at"],
)
8 changes: 6 additions & 2 deletions synapse/module_api/__init__.py
View file
Original file line number Diff line number Diff line change
Expand Up @@ -128,8 +128,12 @@ def register_user(self, localpart, displayname=None, emails=[]):
Returns:
Deferred[str]: user_id
"""
return self._hs.get_registration_handler().register_user(
localpart=localpart, default_display_name=displayname, bind_emails=emails
return defer.ensureDeferred(
self._hs.get_registration_handler().register_user(
localpart=localpart,
default_display_name=displayname,
bind_emails=emails,
)
)

def register_device(self, user_id, device_id=None, initial_display_name=None):
Expand Down

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