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Prevent user IDs in AS namespaces being created/deleted by humans.

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This commit is contained in:
Kegan Dougal 2015-02-05 16:46:56 +00:00
parent e9484d6a95
commit cab4c73088
1 changed files with 16 additions and 0 deletions
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16
synapse/handlers/register.py
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@ -65,6 +65,8 @@ class RegistrationHandler(BaseHandler):
user = UserID(localpart, self.hs.hostname)
user_id = user.to_string()
yield self.check_user_id_is_valid(user_id)
token = self._generate_token(user_id)
yield self.store.register(
user_id=user_id,
@ -83,6 +85,7 @@ class RegistrationHandler(BaseHandler):
localpart = self._generate_user_id()
user = UserID(localpart, self.hs.hostname)
user_id = user.to_string()
yield self.check_user_id_is_valid(user_id)
token = self._generate_token(user_id)
yield self.store.register(
@ -148,6 +151,19 @@ class RegistrationHandler(BaseHandler):
# XXX: This should be a deferred list, shouldn't it?
yield self._bind_threepid(c, user_id)
@defer.inlineCallbacks
def check_user_id_is_valid(self, user_id):
# valid user IDs must not clash with any user ID namespaces claimed by
# application services.
services = yield self.store.get_app_services()
interested_services = [
s for s in services if s.is_interested_in_user(user_id)
]
if len(interested_services) > 0:
raise SynapseError(
400, "This user ID is reserved by an application service."
)
def _generate_token(self, user_id):
# urlsafe variant uses _ and - so use . as the separator and replace
# all =s with .s so http clients don't quote =s when it is used as