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Don't ignore set_tweak actions with no explicit value. (#7766)

* Fix spec compliance; tweaks without values are valid

(default to True, which is only concretely specified for
`highlight`, but it seems only reasonable to generalise)

* Changelog for 7766.

* Add documentation to `tweaks_for_actions`

May as well tidy up when I'm here.

* Add a test for `tweaks_for_actions`
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reivilibre 2020-07-06 11:43:41 +01:00 committed by GitHub
parent 4e118742ca
commit 57feeab364
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3 changed files with 45 additions and 4 deletions

1
changelog.d/7766.bugfix Normal file
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@ -0,0 +1 @@
Fix to not ignore `set_tweak` actions in Push Rules that have no `value`, as permitted by the specification.

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@ -16,7 +16,7 @@
import logging
import re
from typing import Pattern
from typing import Any, Dict, List, Pattern, Union
from synapse.events import EventBase
from synapse.types import UserID
@ -72,13 +72,36 @@ def _test_ineq_condition(condition, number):
return False
def tweaks_for_actions(actions):
def tweaks_for_actions(actions: List[Union[str, Dict]]) -> Dict[str, Any]:
"""
Converts a list of actions into a `tweaks` dict (which can then be passed to
the push gateway).
This function ignores all actions other than `set_tweak` actions, and treats
absent `value`s as `True`, which agrees with the only spec-defined treatment
of absent `value`s (namely, for `highlight` tweaks).
Args:
actions: list of actions
e.g. [
{"set_tweak": "a", "value": "AAA"},
{"set_tweak": "b", "value": "BBB"},
{"set_tweak": "highlight"},
"notify"
]
Returns:
dictionary of tweaks for those actions
e.g. {"a": "AAA", "b": "BBB", "highlight": True}
"""
tweaks = {}
for a in actions:
if not isinstance(a, dict):
continue
if "set_tweak" in a and "value" in a:
tweaks[a["set_tweak"]] = a["value"]
if "set_tweak" in a:
# value is allowed to be absent in which case the value assumed
# should be True.
tweaks[a["set_tweak"]] = a.get("value", True)
return tweaks

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@ -15,6 +15,7 @@
from synapse.api.room_versions import RoomVersions
from synapse.events import FrozenEvent
from synapse.push import push_rule_evaluator
from synapse.push.push_rule_evaluator import PushRuleEvaluatorForEvent
from tests import unittest
@ -84,3 +85,19 @@ class PushRuleEvaluatorTestCase(unittest.TestCase):
for body in (1, True, {"foo": "bar"}):
evaluator = self._get_evaluator({"body": body})
self.assertFalse(evaluator.matches(condition, "@user:test", "foo"))
def test_tweaks_for_actions(self):
"""
This tests the behaviour of tweaks_for_actions.
"""
actions = [
{"set_tweak": "sound", "value": "default"},
{"set_tweak": "highlight"},
"notify",
]
self.assertEqual(
push_rule_evaluator.tweaks_for_actions(actions),
{"sound": "default", "highlight": True},
)