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Factor out a copy_power_levels_contents method

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I'm going to need another copy (hah!) of this.
This commit is contained in:
Richard van der Hoff 2020-01-28 11:02:55 +00:00
parent 6b9e1014cf
commit ee42a5513e
3 changed files with 90 additions and 15 deletions
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23
synapse/handlers/room.py
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@ -30,6 +30,7 @@ from twisted.internet import defer
from synapse.api.constants import EventTypes, JoinRules, RoomCreationPreset
from synapse.api.errors import AuthError, Codes, NotFoundError, StoreError, SynapseError
from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, RoomVersion
from synapse.events.utils import copy_power_levels_contents
from synapse.http.endpoint import parse_and_validate_server_name
from synapse.storage.state import StateFilter
from synapse.types import (
@ -367,6 +368,15 @@ class RoomCreationHandler(BaseHandler):
if old_event:
initial_state[k] = old_event.content
# deep-copy the power-levels event before we start modifying it
# note that if frozen_dicts are enabled, `power_levels` will be a frozen
# dict so we can't just copy.deepcopy it.
initial_state[
(EventTypes.PowerLevels, "")
] = power_levels = copy_power_levels_contents(
initial_state[(EventTypes.PowerLevels, "")]
)
# Resolve the minimum power level required to send any state event
# We will give the upgrading user this power level temporarily (if necessary) such that
# they are able to copy all of the state events over, then revert them back to their
@ -375,8 +385,6 @@ class RoomCreationHandler(BaseHandler):
# Copy over user power levels now as this will not be possible with >100PL users once
# the room has been created
power_levels = initial_state[(EventTypes.PowerLevels, "")]
# Calculate the minimum power level needed to clone the room
event_power_levels = power_levels.get("events", {})
state_default = power_levels.get("state_default", 0)
@ -386,16 +394,7 @@ class RoomCreationHandler(BaseHandler):
# Raise the requester's power level in the new room if necessary
current_power_level = power_levels["users"][user_id]
if current_power_level < needed_power_level:
# make sure we copy the event content rather than overwriting it.
# note that if frozen_dicts are enabled, `power_levels` will be a frozen
# dict so we can't just copy.deepcopy it.
new_power_levels = {k: v for k, v in power_levels.items() if k != "users"}
new_power_levels["users"] = {
k: v for k, v in power_levels.get("users", {}).items() if k != user_id
}
new_power_levels["users"][user_id] = needed_power_level
initial_state[(EventTypes.PowerLevels, "")] = new_power_levels
power_levels["users"][user_id] = needed_power_level
yield self._send_events_for_new_room(
requester,