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workaround synapse bug that would make broken PLs

This commit is contained in:
Cadence Ember 2023-08-23 17:08:20 +12:00
parent 8d536d5ef2
commit a8fab062a4
4 changed files with 72 additions and 30 deletions

View file

@ -95,6 +95,11 @@ async function channelToKState(channel, guild) {
type: "m.room_membership",
room_id: spaceID
}]
},
"m.room.power_levels/": {
events: {
"m.room.avatar": 0
}
}
}
@ -114,6 +119,7 @@ async function createRoom(channel, guild, spaceID, kstate) {
if (channel.type === DiscordTypes.ChannelType.PublicThread) threadParent = channel.parent_id
const invite = threadParent ? [] : ["@cadence:cadence.moe"] // TODO
const roomID = await postApplyPowerLevels(kstate, async kstate => {
const [convertedName, convertedTopic] = convertNameAndTopic(channel, guild, null)
const roomID = await api.createRoom({
name: convertedName,
@ -126,12 +132,43 @@ async function createRoom(channel, guild, spaceID, kstate) {
db.prepare("INSERT INTO channel_room (channel_id, room_id, name, nick, thread_parent) VALUES (?, ?, ?, NULL, ?)").run(channel.id, roomID, channel.name, threadParent)
// Put the newly created child into the space
return roomID
})
// Put the newly created child into the space, no need to await this
_syncSpaceMember(channel, spaceID, roomID)
return roomID
}
/**
* Handling power levels separately. The spec doesn't specify what happens, Dendrite differs,
* and Synapse does an absolutely insane *shallow merge* of what I provide on top of what it creates.
* We don't want the `events` key to be overridden completely.
* https://github.com/matrix-org/synapse/blob/develop/synapse/handlers/room.py#L1170-L1210
* https://github.com/matrix-org/matrix-spec/issues/492
* @param {any} kstate
* @param {(_: any) => Promise<string>} callback must return room ID
* @returns {Promise<string>} room ID
*/
async function postApplyPowerLevels(kstate, callback) {
const powerLevelContent = kstate["m.room.power_levels/"]
const kstateWithoutPowerLevels = {...kstate}
delete kstateWithoutPowerLevels["m.room.power_levels/"]
/** @type {string} */
const roomID = await callback(kstateWithoutPowerLevels)
// Now *really* apply the power level overrides on top of what Synapse *really* set
if (powerLevelContent) {
const newRoomKState = await roomToKState(roomID)
const newRoomPowerLevelsDiff = ks.diffKState(newRoomKState, {"m.room.power_levels/": powerLevelContent})
await applyKStateDiffToRoom(roomID, newRoomPowerLevelsDiff)
}
return roomID
}
/**
* @param {DiscordTypes.APIGuildChannel} channel
*/
@ -290,5 +327,6 @@ module.exports.createAllForGuild = createAllForGuild
module.exports.channelToKState = channelToKState
module.exports.roomToKState = roomToKState
module.exports.applyKStateDiffToRoom = applyKStateDiffToRoom
module.exports.postApplyPowerLevels = postApplyPowerLevels
module.exports._convertNameAndTopic = convertNameAndTopic
module.exports._unbridgeRoom = _unbridgeRoom

View file

@ -21,10 +21,10 @@ const ks = sync.require("../../matrix/kstate")
async function createSpace(guild, kstate) {
const name = kstate["m.room.name/"].name
const topic = kstate["m.room.topic/"]?.topic || undefined
assert(name)
const roomID = await api.createRoom({
const roomID = await createRoom.postApplyPowerLevels(kstate, async kstate => {
return api.createRoom({
name,
preset: "private_chat", // cannot join space unless invited
visibility: "private",
@ -39,6 +39,7 @@ async function createSpace(guild, kstate) {
},
initial_state: ks.kstateToState(kstate)
})
})
db.prepare("INSERT INTO guild_space (guild_id, space_id) VALUES (?, ?)").run(guild.id, roomID)
return roomID
}

View file

@ -47,10 +47,8 @@ function diffKState(actual, target) {
if (key === "m.room.power_levels/") {
// Special handling for power levels, we want to deep merge the actual and target into the final state.
console.log(actual[key])
if (!(key in actual)) throw new Error(`want to apply a power levels diff, but original power level data is missing\nstarted with: ${JSON.stringify(actual)}\nwant to apply: ${JSON.stringify(target)}`)
const temp = mixin({}, actual[key], target[key])
console.log(actual[key])
console.log(temp)
try {
assert.deepEqual(actual[key], temp)
} catch (e) {

View file

@ -27,7 +27,7 @@ module.exports = {
"m.room.guest_access/": {guest_access: "can_join"},
"m.room.history_visibility/": {history_visibility: "invited"},
"m.space.parent/!jjWAGMeQdNrVZSSfvz:cadence.moe": {
via: ["cadence.moe"], // TODO: put the proper server here
via: ["cadence.moe"],
canonical: true
},
"m.room.join_rules/": {
@ -40,6 +40,11 @@ module.exports = {
"m.room.avatar/": {
discord_path: "/icons/112760669178241024/a_f83622e09ead74f0c5c527fe241f8f8c.png?size=1024",
url: "mxc://cadence.moe/zKXGZhmImMHuGQZWJEFKJbsF"
},
"m.room.power_levels/": {
events: {
"m.room.avatar": 0
}
}
}
},