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Implement exclusive namespace checks.

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This commit is contained in:
Kegan Dougal 2015-02-27 13:51:41 +00:00
parent de190e49d5
commit 58ff066064
2 changed files with 18 additions and 7 deletions
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14
synapse/handlers/directory.py
View File

@ -232,13 +232,23 @@ class DirectoryHandler(BaseHandler):
@defer.inlineCallbacks
def can_modify_alias(self, alias, user_id=None):
# Any application service "interested" in an alias they are regexing on
# can modify the alias.
# Users can only modify the alias if ALL the interested services have
# non-exclusive locks on the alias (or there are no interested services)
services = yield self.store.get_app_services()
interested_services = [
s for s in services if s.is_interested_in_alias(alias.to_string())
]
for service in interested_services:
if user_id == service.sender:
# this user IS the app service
# this user IS the app service so they can do whatever they like
defer.returnValue(True)
return
defer.returnValue(len(interested_services) == 0)
elif service.is_exclusive_alias(alias.to_string()):
# another service has an exclusive lock on this alias.
defer.returnValue(False)
return
# either no interested services, or no service with an exclusive lock
defer.returnValue(True)

11
synapse/handlers/register.py
View File

@ -201,11 +201,12 @@ class RegistrationHandler(BaseHandler):
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.",
errcode=Codes.EXCLUSIVE
)
for service in interested_services:
if service.is_exclusive_user(user_id):
raise SynapseError(
400, "This user ID is reserved by an application service.",
errcode=Codes.EXCLUSIVE
)
def _generate_token(self, user_id):
# urlsafe variant uses _ and - so use . as the separator and replace