diff options
Diffstat (limited to 'synapse/api/auth.py')
| -rw-r--r-- | synapse/api/auth.py | 175 |
1 files changed, 80 insertions, 95 deletions
diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 64f605b962..d5bf0be85c 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -18,9 +18,8 @@ from twisted.internet import defer from synapse.api.constants import EventTypes, Membership, JoinRules -from synapse.api.errors import AuthError, StoreError, Codes, SynapseError +from synapse.api.errors import AuthError, Codes, SynapseError from synapse.util.logutils import log_function -from synapse.util.async import run_on_reactor from synapse.types import UserID, ClientInfo import logging @@ -40,6 +39,7 @@ class Auth(object): self.hs = hs self.store = hs.get_datastore() self.state = hs.get_state_handler() + self.TOKEN_NOT_FOUND_HTTP_STATUS = 401 def check(self, event, auth_events): """ Checks if this event is correctly authed. @@ -64,7 +64,10 @@ class Auth(object): if event.type == EventTypes.Aliases: return True - logger.debug("Auth events: %s", auth_events) + logger.debug( + "Auth events: %s", + [a.event_id for a in auth_events.values()] + ) if event.type == EventTypes.Member: allowed = self.is_membership_change_allowed( @@ -183,18 +186,10 @@ class Auth(object): else: join_rule = JoinRules.INVITE - user_level = self._get_power_level_from_event_state( - event, - event.user_id, - auth_events, - ) + user_level = self._get_user_power_level(event.user_id, auth_events) - ban_level, kick_level, redact_level = ( - self._get_ops_level_from_event_state( - event, - auth_events, - ) - ) + # FIXME (erikj): What should we do here as the default? + ban_level = self._get_named_level(auth_events, "ban", 50) logger.debug( "is_membership_change_allowed: %s", @@ -210,28 +205,33 @@ class Auth(object): } ) - if ban_level: - ban_level = int(ban_level) - else: - ban_level = 50 # FIXME (erikj): What should we do here? + if Membership.JOIN != membership: + # JOIN is the only action you can perform if you're not in the room + if not caller_in_room: # caller isn't joined + raise AuthError( + 403, + "%s not in room %s." % (event.user_id, event.room_id,) + ) if Membership.INVITE == membership: # TODO (erikj): We should probably handle this more intelligently # PRIVATE join rules. # Invites are valid iff caller is in the room and target isn't. - if not caller_in_room: # caller isn't joined - raise AuthError( - 403, - "%s not in room %s." % (event.user_id, event.room_id,) - ) - elif target_banned: + if target_banned: raise AuthError( 403, "%s is banned from the room" % (target_user_id,) ) elif target_in_room: # the target is already in the room. raise AuthError(403, "%s is already in the room." % target_user_id) + else: + invite_level = self._get_named_level(auth_events, "invite", 0) + + if user_level < invite_level: + raise AuthError( + 403, "You cannot invite user %s." % target_user_id + ) elif Membership.JOIN == membership: # Joins are valid iff caller == target and they were: # invited: They are accepting the invitation @@ -251,21 +251,12 @@ class Auth(object): raise AuthError(403, "You are not allowed to join this room") elif Membership.LEAVE == membership: # TODO (erikj): Implement kicks. - - if not caller_in_room: # trying to leave a room you aren't joined - raise AuthError( - 403, - "%s not in room %s." % (target_user_id, event.room_id,) - ) - elif target_banned and user_level < ban_level: + if target_banned and user_level < ban_level: raise AuthError( 403, "You cannot unban user &s." % (target_user_id,) ) elif target_user_id != event.user_id: - if kick_level: - kick_level = int(kick_level) - else: - kick_level = 50 # FIXME (erikj): What should we do here? + kick_level = self._get_named_level(auth_events, "kick", 50) if user_level < kick_level: raise AuthError( @@ -279,34 +270,42 @@ class Auth(object): return True - def _get_power_level_from_event_state(self, event, user_id, auth_events): + def _get_power_level_event(self, auth_events): key = (EventTypes.PowerLevels, "", ) - power_level_event = auth_events.get(key) - level = None + return auth_events.get(key) + + def _get_user_power_level(self, user_id, auth_events): + power_level_event = self._get_power_level_event(auth_events) + if power_level_event: level = power_level_event.content.get("users", {}).get(user_id) if not level: level = power_level_event.content.get("users_default", 0) + + if level is None: + return 0 + else: + return int(level) else: key = (EventTypes.Create, "", ) create_event = auth_events.get(key) if (create_event is not None and create_event.content["creator"] == user_id): return 100 + else: + return 0 - return level + def _get_named_level(self, auth_events, name, default): + power_level_event = self._get_power_level_event(auth_events) - def _get_ops_level_from_event_state(self, event, auth_events): - key = (EventTypes.PowerLevels, "", ) - power_level_event = auth_events.get(key) + if not power_level_event: + return default - if power_level_event: - return ( - power_level_event.content.get("ban", 50), - power_level_event.content.get("kick", 50), - power_level_event.content.get("redact", 50), - ) - return None, None, None, + level = power_level_event.content.get(name, None) + if level is not None: + return int(level) + else: + return default @defer.inlineCallbacks def get_user_by_req(self, request): @@ -363,7 +362,7 @@ class Auth(object): default=[""] )[0] if user and access_token and ip_addr: - yield self.store.insert_client_ip( + self.store.insert_client_ip( user=user, access_token=access_token, device_id=user_info["device_id"], @@ -373,7 +372,10 @@ class Auth(object): defer.returnValue((user, ClientInfo(device_id, token_id))) except KeyError: - raise AuthError(403, "Missing access token.") + raise AuthError( + self.TOKEN_NOT_FOUND_HTTP_STATUS, "Missing access token.", + errcode=Codes.MISSING_TOKEN + ) @defer.inlineCallbacks def get_user_by_token(self, token): @@ -387,21 +389,20 @@ class Auth(object): Raises: AuthError if no user by that token exists or the token is invalid. """ - try: - ret = yield self.store.get_user_by_token(token) - if not ret: - raise StoreError(400, "Unknown token") - user_info = { - "admin": bool(ret.get("admin", False)), - "device_id": ret.get("device_id"), - "user": UserID.from_string(ret.get("name")), - "token_id": ret.get("token_id", None), - } + ret = yield self.store.get_user_by_token(token) + if not ret: + raise AuthError( + self.TOKEN_NOT_FOUND_HTTP_STATUS, "Unrecognised access token.", + errcode=Codes.UNKNOWN_TOKEN + ) + user_info = { + "admin": bool(ret.get("admin", False)), + "device_id": ret.get("device_id"), + "user": UserID.from_string(ret.get("name")), + "token_id": ret.get("token_id", None), + } - defer.returnValue(user_info) - except StoreError: - raise AuthError(403, "Unrecognised access token.", - errcode=Codes.UNKNOWN_TOKEN) + defer.returnValue(user_info) @defer.inlineCallbacks def get_appservice_by_req(self, request): @@ -409,19 +410,22 @@ class Auth(object): token = request.args["access_token"][0] service = yield self.store.get_app_service_by_token(token) if not service: - raise AuthError(403, "Unrecognised access token.", - errcode=Codes.UNKNOWN_TOKEN) + raise AuthError( + self.TOKEN_NOT_FOUND_HTTP_STATUS, + "Unrecognised access token.", + errcode=Codes.UNKNOWN_TOKEN + ) defer.returnValue(service) except KeyError: - raise AuthError(403, "Missing access token.") + raise AuthError( + self.TOKEN_NOT_FOUND_HTTP_STATUS, "Missing access token." + ) def is_server_admin(self, user): return self.store.is_server_admin(user) @defer.inlineCallbacks def add_auth_events(self, builder, context): - yield run_on_reactor() - auth_ids = self.compute_auth_events(builder, context.current_state) auth_events_entries = yield self.store.add_event_hashes( @@ -486,7 +490,7 @@ class Auth(object): send_level = send_level_event.content.get("events", {}).get( event.type ) - if not send_level: + if send_level is None: if hasattr(event, "state_key"): send_level = send_level_event.content.get( "state_default", 50 @@ -501,16 +505,7 @@ class Auth(object): else: send_level = 0 - user_level = self._get_power_level_from_event_state( - event, - event.user_id, - auth_events, - ) - - if user_level: - user_level = int(user_level) - else: - user_level = 0 + user_level = self._get_user_power_level(event.user_id, auth_events) if user_level < send_level: raise AuthError( @@ -542,16 +537,9 @@ class Auth(object): return True def _check_redaction(self, event, auth_events): - user_level = self._get_power_level_from_event_state( - event, - event.user_id, - auth_events, - ) + user_level = self._get_user_power_level(event.user_id, auth_events) - _, _, redact_level = self._get_ops_level_from_event_state( - event, - auth_events, - ) + redact_level = self._get_named_level(auth_events, "redact", 50) if user_level < redact_level: raise AuthError( @@ -579,11 +567,7 @@ class Auth(object): if not current_state: return - user_level = self._get_power_level_from_event_state( - event, - event.user_id, - auth_events, - ) + user_level = self._get_user_power_level(event.user_id, auth_events) # Check other levels: levels_to_check = [ @@ -592,6 +576,7 @@ class Auth(object): ("ban", []), ("redact", []), ("kick", []), + ("invite", []), ] old_list = current_state.content.get("users") |