diff options
Diffstat (limited to 'synapse/rest/push_rule.py')
| -rw-r--r-- | synapse/rest/push_rule.py | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/synapse/rest/push_rule.py b/synapse/rest/push_rule.py new file mode 100644 index 0000000000..b5e74479cf --- /dev/null +++ b/synapse/rest/push_rule.py @@ -0,0 +1,195 @@ +# -*- coding: utf-8 -*- +# Copyright 2014 OpenMarket Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from twisted.internet import defer + +from synapse.api.errors import SynapseError, Codes, UnrecognizedRequestError +from base import RestServlet, client_path_pattern +from synapse.storage.push_rule import InconsistentRuleException, RuleNotFoundException + +import json + + +class PushRuleRestServlet(RestServlet): + PATTERN = client_path_pattern("/pushrules/.*$") + + def rule_spec_from_path(self, path): + if len(path) < 2: + raise UnrecognizedRequestError() + if path[0] != 'pushrules': + raise UnrecognizedRequestError() + + scope = path[1] + path = path[2:] + if scope not in ['global', 'device']: + raise UnrecognizedRequestError() + + device = None + if scope == 'device': + if len(path) == 0: + raise UnrecognizedRequestError() + device = path[0] + path = path[1:] + + if len(path) == 0: + raise UnrecognizedRequestError() + + template = path[0] + path = path[1:] + + if len(path) == 0: + raise UnrecognizedRequestError() + + rule_id = path[0] + + spec = { + 'scope' : scope, + 'template': template, + 'rule_id': rule_id + } + if device: + spec['device'] = device + return spec + + def rule_tuple_from_request_object(self, rule_template, rule_id, req_obj): + if rule_template in ['override', 'underride']: + if 'conditions' not in req_obj: + raise InvalidRuleException("Missing 'conditions'") + conditions = req_obj['conditions'] + for c in conditions: + if 'kind' not in c: + raise InvalidRuleException("Condition without 'kind'") + elif rule_template == 'room': + conditions = [{ + 'kind': 'event_match', + 'key': 'room_id', + 'pattern': rule_id + }] + elif rule_template == 'sender': + conditions = [{ + 'kind': 'event_match', + 'key': 'user_id', + 'pattern': rule_id + }] + elif rule_template == 'content': + if 'pattern' not in req_obj: + raise InvalidRuleException("Content rule missing 'pattern'") + conditions = [{ + 'kind': 'event_match', + 'key': 'content.body', + 'pattern': req_obj['pattern'] + }] + else: + raise InvalidRuleException("Unknown rule template: %s" % (rule_template)) + + if 'actions' not in req_obj: + raise InvalidRuleException("No actions found") + actions = req_obj['actions'] + + for a in actions: + if a in ['notify', 'dont-notify', 'coalesce']: + pass + elif isinstance(a, dict) and 'set_sound' in a: + pass + else: + raise InvalidRuleException("Unrecognised action") + + return (conditions, actions) + + def priority_class_from_spec(self, spec): + map = { + 'underride': 0, + 'sender': 1, + 'room': 2, + 'content': 3, + 'override': 4 + } + + if spec['template'] not in map.keys(): + raise InvalidRuleException("Unknown template: %s" % (spec['kind'])) + pc = map[spec['template']] + + if spec['scope'] == 'device': + pc += 5 + + return pc + + @defer.inlineCallbacks + def on_PUT(self, request): + spec = self.rule_spec_from_path(request.postpath) + try: + priority_class = self.priority_class_from_spec(spec) + except InvalidRuleException as e: + raise SynapseError(400, e.message) + + user = yield self.auth.get_user_by_req(request) + + content = _parse_json(request) + + try: + (conditions, actions) = self.rule_tuple_from_request_object( + spec['template'], + spec['rule_id'], + content + ) + except InvalidRuleException as e: + raise SynapseError(400, e.message) + + before = request.args.get("before", None) + if before and len(before): + before = before[0] + after = request.args.get("after", None) + if after and len(after): + after = after[0] + + try: + yield self.hs.get_datastore().add_push_rule( + user_name=user.to_string(), + rule_id=spec['rule_id'], + priority_class=priority_class, + conditions=conditions, + actions=actions, + before=before, + after=after + ) + except InconsistentRuleException as e: + raise SynapseError(400, e.message) + except RuleNotFoundException: + raise SynapseError(400, "before/after rule not found") + + defer.returnValue((200, {})) + + def on_OPTIONS(self, _): + return 200, {} + + +class InvalidRuleException(Exception): + pass + + +# XXX: C+ped from rest/room.py - surely this should be common? +def _parse_json(request): + try: + content = json.loads(request.content.read()) + if type(content) != dict: + raise SynapseError(400, "Content must be a JSON object.", + errcode=Codes.NOT_JSON) + return content + except ValueError: + raise SynapseError(400, "Content not JSON.", errcode=Codes.NOT_JSON) + + +def register_servlets(hs, http_server): + PushRuleRestServlet(hs).register(http_server) |