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Fixed dynamic resource mapping to clobber dummy Resources with the actual desired Resource in the event of a collision (as is the case for '/matrix/client' and '/matrix/client/api/v1')

paul/schema_breaking_changes
Kegan Dougal 2014-08-14 11:17:58 +01:00
parent 60b0fca103
commit e543d6a91d
1 changed files with 27 additions and 5 deletions
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32
synapse/app/homeserver.py
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@ -51,7 +51,7 @@ class SynapseHomeServer(HomeServer):
return JsonResource()
def build_resource_for_web_client(self):
return File("webclient")
return File("webclient") # TODO configurable?
def build_db_pool(self):
""" Set up all the dbs. Since all the *.sql have IF NOT EXISTS, so we
@ -90,8 +90,13 @@ class SynapseHomeServer(HomeServer):
This in unduly complicated because Twisted does not support putting
child resources more than 1 level deep at a time.
Args:
web_client (bool): True to enable the web client.
"""
desired_tree = [ # list containing (path_str, Resource)
# list containing (path_str, Resource) e.g:
# [ ("/aaa/bbb/cc", Resource1), ("/aaa/dummy", Resource2) ]
desired_tree = [
(CLIENT_PREFIX, self.get_resource_for_client()),
(PREFIX, self.get_resource_for_federation())
]
@ -111,19 +116,36 @@ class SynapseHomeServer(HomeServer):
last_resource = self.root_resource
for path_seg in full_path.split('/')[1:-1]:
if not path_seg in last_resource.listNames():
# resource doesn't exist
# resource doesn't exist, so make a "dummy resource"
child_resource = Resource()
last_resource.putChild(path_seg, child_resource)
res_id = self._resource_id(last_resource, path_seg)
resource_mappings[res_id] = child_resource
last_resource = child_resource
else:
# we have an existing Resource, pull it out.
# we have an existing Resource, use that instead.
res_id = self._resource_id(last_resource, path_seg)
last_resource = resource_mappings[res_id]
# now attach the actual resource
# ===========================
# now attach the actual desired resource
last_path_seg = full_path.split('/')[-1]
# if there is already a resource here, thieve its children and
# replace it
res_id = self._resource_id(last_resource, last_path_seg)
if res_id in resource_mappings:
# there is a dummy resource at this path already, which needs
# to be replaced with the desired resource.
existing_dummy_resource = resource_mappings[res_id]
for child_name in existing_dummy_resource.listNames():
child_res_id = self._resource_id(existing_dummy_resource,
child_name)
child_resource = resource_mappings[child_res_id]
# steal the children
resource.putChild(child_name, child_resource)
# finally, insert the desired resource in the right place
last_resource.putChild(last_path_seg, resource)
res_id = self._resource_id(last_resource, last_path_seg)
resource_mappings[res_id] = resource