out-of-your-element/m2d/event-dispatcher.js

145 lines
5.2 KiB
JavaScript

// @ts-check
/*
* Grab Matrix events we care about, check them, and bridge them.
*/
const util = require("util")
const Ty = require("../types")
const {discord, db, sync, as} = require("../passthrough")
/** @type {import("./actions/send-event")} */
const sendEvent = sync.require("./actions/send-event")
/** @type {import("./actions/add-reaction")} */
const addReaction = sync.require("./actions/add-reaction")
/** @type {import("./actions/redact")} */
const redact = sync.require("./actions/redact")
/** @type {import("./converters/utils")} */
const utils = sync.require("./converters/utils")
/** @type {import("../matrix/api")}) */
const api = sync.require("../matrix/api")
/** @type {import("../matrix/read-registration")}) */
const reg = sync.require("../matrix/read-registration")
let lastReportedEvent = 0
function guard(type, fn) {
return async function(event, ...args) {
try {
return await fn(event, ...args)
} catch (e) {
console.error("hit event-dispatcher's error handler with this exception:")
console.error(e) // TODO: also log errors into a file or into the database, maybe use a library for this? or just wing it?
console.error(`while handling this ${type} gateway event:`)
console.dir(event, {depth: null})
if (Date.now() - lastReportedEvent < 5000) return
lastReportedEvent = Date.now()
let stackLines = e.stack.split("\n")
api.sendEvent(event.room_id, "m.room.message", {
msgtype: "m.text",
body: "\u26a0 Matrix event not delivered to Discord. See formatted content for full details.",
format: "org.matrix.custom.html",
formatted_body: "\u26a0 <strong>Matrix event not delivered to Discord</strong>"
+ `<br>Event type: ${type}`
+ `<br>${e.toString()}`
+ `<br><details><summary>Error trace</summary>`
+ `<pre>${stackLines.join("\n")}</pre></details>`
+ `<details><summary>Original payload</summary>`
+ `<pre>${util.inspect(event, false, 4, false)}</pre></details>`,
"moe.cadence.ooye.error": {
source: "matrix",
payload: event
},
"m.mentions": {
user_ids: ["@cadence:cadence.moe"]
}
})
}
}
}
async function retry(roomID, eventID) {
const event = await api.getEvent(roomID, eventID)
const error = event.content["moe.cadence.ooye.error"]
if (event.sender !== `@${reg.sender_localpart}:${reg.ooye.server_name}` || !error) return
if (error.source === "matrix") {
as.emit("type:" + error.payload.type, error.payload)
} else if (error.source === "discord") {
discord.cloud.emit("event", error.payload)
}
}
sync.addTemporaryListener(as, "type:m.room.message", guard("m.room.message",
/**
* @param {Ty.Event.Outer_M_Room_Message | Ty.Event.Outer_M_Room_Message_File} event it is a m.room.message because that's what this listener is filtering for
*/
async event => {
if (utils.eventSenderIsFromDiscord(event.sender)) return
const messageResponses = await sendEvent.sendEvent(event)
}))
sync.addTemporaryListener(as, "type:m.sticker", guard("m.sticker",
/**
* @param {Ty.Event.Outer_M_Sticker} event it is a m.sticker because that's what this listener is filtering for
*/
async event => {
if (utils.eventSenderIsFromDiscord(event.sender)) return
const messageResponses = await sendEvent.sendEvent(event)
}))
sync.addTemporaryListener(as, "type:m.reaction", guard("m.reaction",
/**
* @param {Ty.Event.Outer<Ty.Event.M_Reaction>} event it is a m.reaction because that's what this listener is filtering for
*/
async event => {
if (utils.eventSenderIsFromDiscord(event.sender)) return
if (event.content["m.relates_to"].key === "🔁") {
// Try to bridge a failed event again?
await retry(event.room_id, event.content["m.relates_to"].event_id)
} else {
await addReaction.addReaction(event)
}
}))
sync.addTemporaryListener(as, "type:m.room.redaction", guard("m.room.redaction",
/**
* @param {Ty.Event.Outer_M_Room_Redaction} event it is a m.room.redaction because that's what this listener is filtering for
*/
async event => {
if (utils.eventSenderIsFromDiscord(event.sender)) return
await redact.handle(event)
}))
sync.addTemporaryListener(as, "type:m.room.avatar", guard("m.room.avatar",
/**
* @param {Ty.Event.StateOuter<Ty.Event.M_Room_Avatar>} event
*/
async event => {
if (event.state_key !== "") return
if (utils.eventSenderIsFromDiscord(event.sender)) return
const url = event.content.url || null
db.prepare("UPDATE channel_room SET custom_avatar = ? WHERE room_id = ?").run(url, event.room_id)
}))
sync.addTemporaryListener(as, "type:m.room.name", guard("m.room.name",
/**
* @param {Ty.Event.StateOuter<Ty.Event.M_Room_Name>} event
*/
async event => {
if (event.state_key !== "") return
if (utils.eventSenderIsFromDiscord(event.sender)) return
const name = event.content.name || null
db.prepare("UPDATE channel_room SET nick = ? WHERE room_id = ?").run(name, event.room_id)
}))
sync.addTemporaryListener(as, "type:m.room.member", guard("m.room.member",
/**
* @param {Ty.Event.StateOuter<Ty.Event.M_Room_Member>} event
*/
async event => {
if (event.state_key[0] !== "@") return
if (utils.eventSenderIsFromDiscord(event.sender)) return
db.prepare("REPLACE INTO member_cache (room_id, mxid, displayname, avatar_url) VALUES (?, ?, ?, ?)").run(event.room_id, event.sender, event.content.displayname || null, event.content.avatar_url || null)
}))