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out-of-your-element-fork-th.../scripts/migrate-from-old-bridge.js

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2023-09-03 13:38:30 +00:00
// @ts-check
const assert = require("assert").strict
/** @type {any} */ // @ts-ignore bad types from semaphore
const Semaphore = require("@chriscdn/promise-semaphore")
const sqlite = require("better-sqlite3")
const HeatSync = require("heatsync")
const config = require("../config")
const passthrough = require("../passthrough")
const sync = new HeatSync({watchFS: false})
/** @type {import("../matrix/read-registration")} */
const reg = sync.require("../matrix/read-registration")
assert(reg.old_bridge)
const oldAT = reg.old_bridge.as_token
const newAT = reg.as_token
const oldDB = new sqlite(reg.old_bridge.database)
const db = new sqlite("db/ooye.db")
db.exec(`CREATE TABLE IF NOT EXISTS migration (
discord_channel TEXT NOT NULL,
migrated INTEGER NOT NULL,
PRIMARY KEY("discord_channel")
) WITHOUT ROWID;`)
Object.assign(passthrough, {config, sync, db})
const DiscordClient = require("../d2m/discord-client")
const discord = new DiscordClient(config.discordToken, "half")
passthrough.discord = discord
/** @type {import("../d2m/actions/create-space")} */
const createSpace = sync.require("../d2m/actions/create-space")
/** @type {import("../d2m/actions/create-room")} */
const createRoom = sync.require("../d2m/actions/create-room")
/** @type {import("../matrix/mreq")} */
const mreq = sync.require("../matrix/mreq")
/** @type {import("../matrix/api")} */
const api = sync.require("../matrix/api")
const sema = new Semaphore()
;(async () => {
await discord.cloud.connect()
console.log("Discord gateway started")
discord.cloud.on("event", event => onPacket(discord, event))
})()
/** @param {DiscordClient} discord */
function onPacket(discord, event) {
if (event.t === "GUILD_CREATE") {
const guild = event.d
if (!["112760669178241024"].includes(guild.id)) return
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sema.request(() => migrateGuild(guild))
}
}
const newBridgeMxid = `@${reg.sender_localpart}:${reg.ooye.server_name}`
/** @param {import("discord-api-types/v10").GatewayGuildCreateDispatchData} guild */
async function migrateGuild(guild) {
console.log(`START MIGRATION of ${guild.name} (${guild.id})`)
// Step 1: Create a new space for the guild (createSpace)
const spaceID = await createSpace.syncSpace(guild.id)
let oldRooms = oldDB.prepare("SELECT matrix_id, discord_guild, discord_channel FROM room_entries INNER JOIN remote_room_data ON remote_id = room_id WHERE discord_guild = ?").all(guild.id)
const migrated = db.prepare("SELECT discord_channel FROM migration WHERE migrated = 1").pluck().all()
oldRooms = oldRooms.filter(row => discord.channels.has(row.discord_channel) && !migrated.includes(row.discord_channel))
console.log("Found these rooms which can be migrated:")
console.log(oldRooms)
for (const row of oldRooms) {
const roomID = row.matrix_id
const channel = discord.channels.get(row.discord_channel)
assert(channel)
// Step 2: (Using old bridge access token) Join the new bridge to the old rooms and give it PL 100
console.log(`-- Joining channel ${channel.name}...`)
await mreq.withAccessToken(oldAT, async () => {
try {
await api.inviteToRoom(roomID, newBridgeMxid)
} catch (e) {
if (e.message.includes("is already in the room")) {
// Great!
} else {
throw e
}
}
await api.setUserPower(roomID, newBridgeMxid, 100)
})
await api.joinRoom(roomID)
// Step 3: Remove the old bridge's aliases
console.log(`-- -- Deleting aliases...`)
await mreq.withAccessToken(oldAT, async () => { // have to run as old application service since the AS owns its aliases
const aliases = (await mreq.mreq("GET", `/client/v3/rooms/${roomID}/aliases`)).aliases
for (const alias of aliases) {
if (alias.match(/^#?_?discord/)) {
await mreq.mreq("DELETE", `/client/v3/directory/room/${alias.replace(/#/g, "%23")}`)
}
}
await api.sendState(roomID, "m.room.canonical_alias", "", {})
})
// Step 4: Add old rooms to new database; they are now also the new rooms
// Make sure it wasn't already set up for the new bridge and bridged somewhere else pre-migration...
const preMigrationRow = db.prepare("SELECT room_id, nick, custom_avatar FROM channel_room WHERE channel_id = ?").get(channel.id)
if (preMigrationRow) {
// Ok, so we're going to delete this row from the database and then add the new proper row.
// But we want to copy over any previous custom settings like nick and avatar.
// (By the way, thread_parent is always null here because thread rooms would never be migrated because they are not in the old bridge.)
db.transaction(() => {
db.prepare("DELETE FROM channel_room WHERE channel_id = ?").run(channel.id)
db.prepare("INSERT INTO channel_room (channel_id, room_id, name, nick, custom_avatar) VALUES (?, ?, ?, ?, ?)").run(channel.id, row.matrix_id, channel.name, preMigrationRow.nick, preMigrationRow.custom_avatar)
console.log(`-- -- Added to database (transferred properties from previous OOYE room)`)
})()
} else {
db.prepare("REPLACE INTO channel_room (channel_id, room_id, name) VALUES (?, ?, ?)").run(channel.id, row.matrix_id, channel.name)
console.log(`-- -- Added to database`)
}
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// Step 5: Call syncRoom for each room
await createRoom.syncRoom(row.discord_channel)
console.log(`-- -- Finished syncing`)
db.prepare("INSERT INTO migration (discord_channel, migrated) VALUES (?, 1)").run(channel.id)
}
// Step 5: Call syncSpace to make sure everything is up to date
await createSpace.syncSpace(guild.id)
console.log(`Finished migrating ${guild.name} to Out Of Your Element`)
}