151 lines
5.2 KiB
JavaScript
151 lines
5.2 KiB
JavaScript
// @ts-check
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const assert = require("assert").strict
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const DiscordTypes = require("discord-api-types/v10")
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const passthrough = require("../../passthrough")
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const { discord, sync, db } = passthrough
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/** @type {import("../../matrix/api")} */
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const api = sync.require("../../matrix/api")
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/** @type {import("../../matrix/file")} */
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const file = sync.require("../../matrix/file")
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/** @type {import("./create-room")} */
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const createRoom = sync.require("./create-room")
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/** @type {import("../../matrix/kstate")} */
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const ks = sync.require("../../matrix/kstate")
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/**
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* @param {import("discord-api-types/v10").RESTGetAPIGuildResult} guild
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* @param {any} kstate
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*/
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async function createSpace(guild, kstate) {
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const name = kstate["m.room.name/"].name
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const topic = kstate["m.room.topic/"]?.topic || undefined
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assert(name)
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const roomID = await createRoom.postApplyPowerLevels(kstate, async kstate => {
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return api.createRoom({
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name,
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preset: "private_chat", // cannot join space unless invited
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visibility: "private",
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power_level_content_override: {
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events_default: 100, // space can only be managed by bridge
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invite: 0 // any existing member can invite others
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},
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invite: ["@cadence:cadence.moe"], // TODO
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topic,
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creation_content: {
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type: "m.space"
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},
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initial_state: ks.kstateToState(kstate)
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})
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})
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db.prepare("INSERT INTO guild_space (guild_id, space_id) VALUES (?, ?)").run(guild.id, roomID)
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return roomID
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}
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/**
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* @param {DiscordTypes.APIGuild} guild]
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*/
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async function guildToKState(guild) {
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const avatarEventContent = {}
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if (guild.icon) {
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avatarEventContent.discord_path = file.guildIcon(guild)
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avatarEventContent.url = await file.uploadDiscordFileToMxc(avatarEventContent.discord_path) // TODO: somehow represent future values in kstate (callbacks?), while still allowing for diffing, so test cases don't need to touch the media API
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}
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let history_visibility = "invited"
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if (guild["thread_metadata"]) history_visibility = "world_readable"
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const guildKState = {
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"m.room.name/": {name: guild.name},
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"m.room.avatar/": avatarEventContent,
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"m.room.guest_access/": {guest_access: "can_join"}, // guests can join space if other conditions are met
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"m.room.history_visibility/": {history_visibility: "invited"} // any events sent after user was invited are visible
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}
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return guildKState
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}
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/** Efficiently update space name, space avatar, and child room avatars. */
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async function syncSpace(guildID) {
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/** @ts-ignore @type {DiscordTypes.APIGuild} */
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const guild = discord.guilds.get(guildID)
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assert.ok(guild)
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/** @type {string?} */
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const spaceID = db.prepare("SELECT space_id from guild_space WHERE guild_id = ?").pluck().get(guildID)
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const guildKState = await guildToKState(guild)
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if (!spaceID) return
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console.log(`[space sync] to matrix: ${guild.name}`)
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// sync guild state to space
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const spaceKState = await createRoom.roomToKState(spaceID)
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const spaceDiff = ks.diffKState(spaceKState, guildKState)
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await createRoom.applyKStateDiffToRoom(spaceID, spaceDiff)
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// guild icon was changed, so room avatars need to be updated as well as the space ones
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// doing it this way rather than calling syncRoom for great efficiency gains
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const newAvatarState = spaceDiff["m.room.avatar/"]
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if (guild.icon && newAvatarState?.url) {
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// don't try to update rooms with custom avatars though
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const roomsWithCustomAvatars = db.prepare("SELECT room_id FROM channel_room WHERE custom_avatar IS NOT NULL").pluck().all()
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const childRooms = ks.kstateToState(spaceKState).filter(({type, state_key, content}) => {
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return type === "m.space.child" && "via" in content && !roomsWithCustomAvatars.includes(state_key)
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}).map(({state_key}) => state_key)
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for (const roomID of childRooms) {
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const avatarEventContent = await api.getStateEvent(roomID, "m.room.avatar", "")
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if (avatarEventContent.url !== newAvatarState.url) {
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await api.sendState(roomID, "m.room.avatar", "", newAvatarState)
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}
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}
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}
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return spaceID
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}
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/**
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* Inefficiently force the space and its existing child rooms to be fully updated.
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* Should not need to be called as part of the bridge's normal operation.
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*/
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async function syncSpaceFully(guildID) {
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/** @ts-ignore @type {DiscordTypes.APIGuild} */
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const guild = discord.guilds.get(guildID)
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assert.ok(guild)
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/** @type {string?} */
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const spaceID = db.prepare("SELECT space_id from guild_space WHERE guild_id = ?").pluck().get(guildID)
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const guildKState = await guildToKState(guild)
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if (!spaceID) return
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console.log(`[space sync] to matrix: ${guild.name}`)
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// sync guild state to space
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const spaceKState = await createRoom.roomToKState(spaceID)
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const spaceDiff = ks.diffKState(spaceKState, guildKState)
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await createRoom.applyKStateDiffToRoom(spaceID, spaceDiff)
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const childRooms = ks.kstateToState(spaceKState).filter(({type, content}) => {
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return type === "m.space.child" && "via" in content
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}).map(({state_key}) => state_key)
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for (const roomID of childRooms) {
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const channelID = db.prepare("SELECT channel_id FROM channel_room WHERE room_id = ?").pluck().get(roomID)
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if (!channelID) continue
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await createRoom.syncRoom(channelID)
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}
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return spaceID
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}
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module.exports.createSpace = createSpace
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module.exports.syncSpace = syncSpace
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module.exports.syncSpaceFully = syncSpaceFully
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module.exports.guildToKState = guildToKState
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