diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/constants.py | 3 | ||||
| -rw-r--r-- | synapse/handlers/register.py | 11 |
2 files changed, 13 insertions, 1 deletions
diff --git a/synapse/api/constants.py b/synapse/api/constants.py index 8547a63535..c7bf95b426 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py @@ -23,6 +23,9 @@ MAX_DEPTH = 2**63 - 1 # the maximum length for a room alias is 255 characters MAX_ALIAS_LENGTH = 255 +# the maximum length for a user id is 255 characters +MAX_USERID_LENGTH = 255 + class Membership(object): diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index a51d11a257..e83ee24f10 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -19,7 +19,7 @@ import logging from twisted.internet import defer from synapse import types -from synapse.api.constants import LoginType +from synapse.api.constants import MAX_USERID_LENGTH, LoginType from synapse.api.errors import ( AuthError, Codes, @@ -123,6 +123,15 @@ class RegistrationHandler(BaseHandler): self.check_user_id_not_appservice_exclusive(user_id) + if len(user_id) > MAX_USERID_LENGTH: + raise SynapseError( + 400, + "User ID may not be longer than %s characters" % ( + MAX_USERID_LENGTH, + ), + Codes.INVALID_USERNAME + ) + users = yield self.store.get_users_by_id_case_insensitive(user_id) if users: if not guest_access_token: |