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Make registration idempotent, part 2: be idempotent if the client specifies a username.

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This commit is contained in:
David Baker 2016-03-16 19:36:57 +00:00
parent 48b2e853a8
commit a7daa5ae13
3 changed files with 42 additions and 6 deletions
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12
synapse/handlers/register.py
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@ -47,7 +47,8 @@ class RegistrationHandler(BaseHandler):
self._next_generated_user_id = None
@defer.inlineCallbacks
def check_username(self, localpart, guest_access_token=None):
def check_username(self, localpart, guest_access_token=None,
assigned_user_id=None):
yield run_on_reactor()
if urllib.quote(localpart.encode('utf-8')) != localpart:
@ -60,6 +61,15 @@ class RegistrationHandler(BaseHandler):
user = UserID(localpart, self.hs.hostname)
user_id = user.to_string()
if assigned_user_id:
if user_id == assigned_user_id:
return
else:
raise SynapseError(
400,
"A different user ID has already been registered for this session",
)
yield self.check_user_id_not_appservice_exclusive(user_id)
users = yield self.store.get_users_by_id_case_insensitive(user_id)