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Add namespace constants. Add restrict_to option to limit namespace checks.

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This commit is contained in:
Kegan Dougal 2015-02-03 13:17:28 +00:00
parent 3bd2841fdb
commit a060b47b13
2 changed files with 38 additions and 26 deletions
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41
synapse/storage/appservice.py
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@ -23,12 +23,6 @@ from ._base import SQLBaseStore
logger = logging.getLogger(__name__)
namespace_enum = [
"users", # 0
"aliases", # 1
"rooms" # 2
]
# XXX: This feels like it should belong in a "models" module, not storage.
class ApplicationService(object):
@ -36,6 +30,10 @@ class ApplicationService(object):
Provides methods to check if this service is "interested" in events.
"""
NS_USERS = "users"
NS_ALIASES = "aliases"
NS_ROOMS = "rooms"
NS_LIST = [NS_USERS, NS_ALIASES, NS_ROOMS]
def __init__(self, token, url=None, namespaces=None):
self.token = token
@ -52,7 +50,7 @@ class ApplicationService(object):
if not namespaces:
return None
for ns in ["users", "rooms", "aliases"]:
for ns in ApplicationService.NS_LIST:
if type(namespaces[ns]) != list:
raise ValueError("Bad namespace value for '%s'", ns)
for regex in namespaces[ns]:
@ -68,31 +66,36 @@ class ApplicationService(object):
def _matches_user(self, event):
if (hasattr(event, "user_id") and
self._matches_regex(event.user_id, "users")):
self._matches_regex(
event.user_id, ApplicationService.NS_USERS)):
return True
# also check m.room.member state key
if (hasattr(event, "type") and event.type == EventTypes.Member
and hasattr(event, "state_key")
and self._matches_regex(event.state_key, "users")):
and self._matches_regex(
event.state_key, ApplicationService.NS_USERS)):
return True
return False
def _matches_room_id(self, event):
if hasattr(event, "room_id"):
return self._matches_regex(event.room_id, "rooms")
return self._matches_regex(
event.room_id, ApplicationService.NS_ROOMS
)
return False
def _matches_aliases(self, event, alias_list):
for alias in alias_list:
if self._matches_regex(alias, "aliases"):
if self._matches_regex(alias, ApplicationService.NS_ALIASES):
return True
return False
def is_interested(self, event, aliases_for_event=None):
def is_interested(self, event, restrict_to=None, aliases_for_event=None):
"""Check if this service is interested in this event.
Args:
event(Event): The event to check.
restrict_to(str): The namespace to restrict regex tests to.
aliases_for_event(list): A list of all the known room aliases for
this event.
Returns:
@ -100,6 +103,9 @@ class ApplicationService(object):
"""
if aliases_for_event is None:
aliases_for_event = []
if restrict_to not in ApplicationService.NS_LIST:
# this is a programming error, so raise a general exception
raise Exception("Unexpected restrict_to value: %s". restrict_to)
return (self._matches_user(event)
or self._matches_aliases(event, aliases_for_event)
@ -215,7 +221,7 @@ class ApplicationServiceStore(SQLBaseStore):
"DELETE FROM application_services_regex WHERE as_id=?",
(as_id,)
)
for (ns_int, ns_str) in enumerate(namespace_enum):
for (ns_int, ns_str) in enumerate(ApplicationService.NS_LIST):
if ns_str in service.namespaces:
for regex in service.namespaces[ns_str]:
txn.execute(
@ -285,9 +291,9 @@ class ApplicationServiceStore(SQLBaseStore):
"url": res["url"],
"token": as_token,
"namespaces": {
"users": [],
"aliases": [],
"rooms": []
ApplicationService.NS_USERS: [],
ApplicationService.NS_ALIASES: [],
ApplicationService.NS_ROOMS: []
}
}
# add the namespace regex if one exists
@ -295,7 +301,8 @@ class ApplicationServiceStore(SQLBaseStore):
if ns_int is None:
continue
try:
services[as_token]["namespaces"][namespace_enum[ns_int]].append(
services[as_token]["namespaces"][
ApplicationService.NS_LIST[ns_int]].append(
res["regex"]
)
except IndexError: