Add Matrix command handler + emoji command
This commit is contained in:
parent
c1cbdfee82
commit
d1e3640078
5 changed files with 285 additions and 12 deletions
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@ -63,7 +63,7 @@ async function stickersToState(stickers) {
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if (sticker && sticker.description) body += ` - ${sticker.description}`
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if (!body) body = undefined
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let shortcode = sticker.name.toLowerCase().replace(/[^a-zA-Z0-9-_]/g, "-").replace(/^-|-$/g, "").replace(/--+/g, "-")
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let shortcode = sticker.name.toLowerCase().replace(/[^a-zA-Z0-9_-]/g, "-").replace(/^-|-$/g, "").replace(/--+/g, "-")
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while (shortcodes.includes(shortcode)) shortcode = shortcode + "~"
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shortcodes.push(shortcode)
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@ -15,15 +15,6 @@ const utils = sync.require("../converters/utils")
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/** @type {import("./emoji-sheet")} */
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const emojiSheet = sync.require("./emoji-sheet")
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const BLOCK_ELEMENTS = [
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"ADDRESS", "ARTICLE", "ASIDE", "AUDIO", "BLOCKQUOTE", "BODY", "CANVAS",
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"CENTER", "DD", "DETAILS", "DIR", "DIV", "DL", "DT", "FIELDSET", "FIGCAPTION", "FIGURE",
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"FOOTER", "FORM", "FRAMESET", "H1", "H2", "H3", "H4", "H5", "H6", "HEADER",
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"HGROUP", "HR", "HTML", "ISINDEX", "LI", "MAIN", "MENU", "NAV", "NOFRAMES",
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"NOSCRIPT", "OL", "OUTPUT", "P", "PRE", "SECTION", "SUMMARY", "TABLE", "TBODY", "TD",
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"TFOOT", "TH", "THEAD", "TR", "UL"
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]
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/** @type {[RegExp, string][]} */
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const markdownEscapes = [
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[/\\/g, '\\\\'],
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@ -235,7 +226,7 @@ function splitDisplayName(displayName) {
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async function uploadEndOfMessageSpriteSheet(content, attachments, pendingFiles) {
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if (!content.includes("<::>")) return content // No unknown emojis, nothing to do
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// Remove known and unknown emojis from the end of the message
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const r = /<a?:[a-zA-Z0-9_-]*:[0-9]*>\s*$/
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const r = /<a?:[a-zA-Z0-9_]*:[0-9]*>\s*$/
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while (content.match(r)) {
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content = content.replace(r, "")
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}
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@ -403,7 +394,7 @@ async function eventToMessage(event, guild, di) {
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beforeTag = beforeTag || ""
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afterContext = afterContext || ""
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afterTag = afterTag || ""
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if (!BLOCK_ELEMENTS.includes(beforeTag.toUpperCase()) && !BLOCK_ELEMENTS.includes(afterTag.toUpperCase())) {
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if (!utils.BLOCK_ELEMENTS.includes(beforeTag.toUpperCase()) && !utils.BLOCK_ELEMENTS.includes(afterTag.toUpperCase())) {
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return beforeContext + "<br>" + afterContext
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} else {
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return whole
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@ -8,6 +8,15 @@ let hasher = null
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// @ts-ignore
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require("xxhash-wasm")().then(h => hasher = h)
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const BLOCK_ELEMENTS = [
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"ADDRESS", "ARTICLE", "ASIDE", "AUDIO", "BLOCKQUOTE", "BODY", "CANVAS",
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"CENTER", "DD", "DETAILS", "DIR", "DIV", "DL", "DT", "FIELDSET", "FIGCAPTION", "FIGURE",
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"FOOTER", "FORM", "FRAMESET", "H1", "H2", "H3", "H4", "H5", "H6", "HEADER",
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"HGROUP", "HR", "HTML", "ISINDEX", "LI", "MAIN", "MENU", "NAV", "NOFRAMES",
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"NOSCRIPT", "OL", "OUTPUT", "P", "PRE", "SECTION", "SUMMARY", "TABLE", "TBODY", "TD",
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"TFOOT", "TH", "THEAD", "TR", "UL"
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]
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/**
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* Determine whether an event is the bridged representation of a discord message.
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* Such messages shouldn't be bridged again.
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@ -54,6 +63,7 @@ function getEventIDHash(eventID) {
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return signedHash
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}
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module.exports.BLOCK_ELEMENTS = BLOCK_ELEMENTS
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module.exports.eventSenderIsFromDiscord = eventSenderIsFromDiscord
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module.exports.getPublicUrlForMxc = getPublicUrlForMxc
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module.exports.getEventIDHash = getEventIDHash
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@ -14,6 +14,8 @@ const sendEvent = sync.require("./actions/send-event")
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const addReaction = sync.require("./actions/add-reaction")
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/** @type {import("./actions/redact")} */
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const redact = sync.require("./actions/redact")
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/** @type {import("../matrix/matrix-command-handler")} */
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const matrixCommandHandler = sync.require("../matrix/matrix-command-handler")
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/** @type {import("./converters/utils")} */
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const utils = sync.require("./converters/utils")
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/** @type {import("../matrix/api")}) */
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@ -78,6 +80,10 @@ sync.addTemporaryListener(as, "type:m.room.message", guard("m.room.message",
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async event => {
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if (utils.eventSenderIsFromDiscord(event.sender)) return
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const messageResponses = await sendEvent.sendEvent(event)
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if (event.type === "m.room.message" && event.content.msgtype === "m.text") {
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// @ts-ignore
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await matrixCommandHandler.execute(event)
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}
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}))
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sync.addTemporaryListener(as, "type:m.sticker", guard("m.sticker",
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@ -99,6 +105,7 @@ async event => {
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// Try to bridge a failed event again?
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await retry(event.room_id, event.content["m.relates_to"].event_id)
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} else {
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matrixCommandHandler.onReactionAdd(event)
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await addReaction.addReaction(event)
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}
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}))
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265
matrix/matrix-command-handler.js
Normal file
265
matrix/matrix-command-handler.js
Normal file
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@ -0,0 +1,265 @@
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// @ts-check
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const assert = require("assert").strict
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const Ty = require("../types")
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const {pipeline} = require("stream").promises
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const sharp = require("sharp")
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const {discord, sync, db, select} = require("../passthrough")
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/** @type {import("./api")}) */
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const api = sync.require("./api")
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/** @type {import("../m2d/converters/utils")} */
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const mxUtils = sync.require("../m2d/converters/utils")
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/** @type {import("../discord/utils")} */
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const dUtils = sync.require("../discord/utils")
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const PREFIXES = ["//", "/"]
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const EMOJI_SIZE = 128
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/** This many normal emojis + this many animated emojis. The total number is doubled. */
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const TIER_EMOJI_SLOTS = new Map([
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[1, 100],
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[2, 150],
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[3, 250]
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])
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/** @param {number} tier */
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function getSlotCount(tier) {
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return TIER_EMOJI_SLOTS.get(tier) || 50
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}
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let buttons = []
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/**
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* @param {string} roomID where to add the button
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* @param {string} eventID where to add the button
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* @param {string} key emoji to add as a button
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* @param {string} mxid only listen for responses from this user
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* @returns {Promise<import("discord-api-types/v10").GatewayMessageReactionAddDispatchData>}
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*/
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async function addButton(roomID, eventID, key, mxid) {
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await api.sendEvent(roomID, "m.reaction", {
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"m.relates_to": {
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rel_type: "m.annotation",
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event_id: eventID,
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key
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}
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})
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return new Promise(resolve => {
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buttons.push({roomID, eventID, mxid, key, resolve, created: Date.now()})
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})
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}
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// Clear out old buttons every so often to free memory
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setInterval(() => {
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const now = Date.now()
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buttons = buttons.filter(b => now - b.created < 2*60*60*1000)
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}, 10*60*1000)
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/** @param {Ty.Event.Outer<Ty.Event.M_Reaction>} event */
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function onReactionAdd(event) {
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const button = buttons.find(b => b.roomID === event.room_id && b.mxid === event.sender && b.eventID === event.content["m.relates_to"]?.event_id && b.key === event.content["m.relates_to"]?.key)
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if (button) {
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buttons = buttons.filter(b => b !== button) // remove button data so it can't be clicked again
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button.resolve(event)
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}
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}
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/**
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* @callback CommandExecute
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* @param {Ty.Event.Outer_M_Room_Message} event
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* @param {any} [ctx]
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*/
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/**
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* @typedef Command
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* @property {string[]} aliases
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* @property {CommandExecute} execute
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*/
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/** @param {CommandExecute} execute */
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function replyctx(execute) {
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/** @type {CommandExecute} */
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return function(event, ctx = {}) {
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ctx["m.relates_to"] = {
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"m.in_reply_to": {
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event_id: event.event_id
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}
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}
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return execute(event, ctx)
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}
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}
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const NEWLINE_ELEMENTS = mxUtils.BLOCK_ELEMENTS.concat(["BR"])
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class MatrixStringBuilder {
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constructor() {
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this.body = ""
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this.formattedBody = ""
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}
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/**
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* @param {string} body
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* @param {string} formattedBody
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* @param {any} [condition]
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*/
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add(body, formattedBody, condition = true) {
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if (condition) {
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if (!formattedBody) formattedBody = body
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this.body += body
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this.formattedBody += formattedBody
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}
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return this
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}
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/**
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* @param {string} body
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* @param {string} [formattedBody]
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* @param {any} [condition]
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*/
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addLine(body, formattedBody, condition = true) {
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if (condition) {
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if (!formattedBody) formattedBody = body
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if (this.body.length && this.body.slice(-1) !== "\n") this.body += "\n"
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this.body += body
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const match = this.formattedBody.match(/<\/?([a-zA-Z]+[a-zA-Z0-9]*)[^>]*>\s*$/)
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if (this.formattedBody.length && (!match || !NEWLINE_ELEMENTS.includes(match[1].toUpperCase()))) this.formattedBody += "<br>"
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this.formattedBody += formattedBody
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}
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return this
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}
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get() {
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return {
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msgtype: "m.text",
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body: this.body,
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format: "org.matrix.custom.html",
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formatted_body: this.formattedBody
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}
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}
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}
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/** @type {Command[]} */
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const commands = [{
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aliases: ["emoji"],
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execute: replyctx(
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async (event, ctx) => {
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// Guard
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/** @type {string} */ // @ts-ignore
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const channelID = select("channel_room", "channel_id", "WHERE room_id = ?").pluck().get(event.room_id)
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const guildID = discord.channels.get(channelID)?.["guild_id"]
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let matrixOnlyReason = null
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const matrixOnlyConclusion = "So the emoji will be uploaded on Matrix-side only. It will still be usable over the bridge, but may have degraded functionality."
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if (!guildID) {
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matrixOnlyReason = "NOT_BRIDGED"
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} else {
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const guild = discord.guilds.get(guildID)
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assert(guild)
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const slots = getSlotCount(guild.premium_tier)
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const permissions = dUtils.getPermissions([], guild.roles)
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if (guild.emojis.length >= slots) {
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matrixOnlyReason = "CAPACITY"
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} else if (!(permissions | 0x40000000n)) { // MANAGE_GUILD_EXPRESSIONS (apparently CREATE_GUILD_EXPRESSIONS isn't good enough...)
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matrixOnlyReason = "USER_PERMISSIONS"
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}
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}
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const nameMatch = event.content.body.match(/:([a-zA-Z0-9_]{2,}):/)
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if (!nameMatch) {
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return api.sendEvent(event.room_id, "m.room.message", {
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...ctx,
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msgtype: "m.text",
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body: "Not sure what you want to call this emoji. Try writing a new :name: in colons. The name can have letters, numbers, and underscores."
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})
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}
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const name = nameMatch[1]
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let mxc
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const mxcMatch = event.content.body.match(/(mxc:\/\/.*?)\b/)
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if (mxcMatch) {
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mxc = mxcMatch[1]
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}
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if (!mxc && event.content["m.relates_to"]?.["m.in_reply_to"]?.event_id) {
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const repliedToEventID = event.content["m.relates_to"]["m.in_reply_to"].event_id
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const repliedToEvent = await api.getEvent(event.room_id, repliedToEventID)
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if (repliedToEvent.type === "m.room.message" && repliedToEvent.content.msgtype === "m.image" && repliedToEvent.content.url) {
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mxc = repliedToEvent.content.url
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}
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}
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if (!mxc) {
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return api.sendEvent(event.room_id, "m.room.message", {
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...ctx,
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msgtype: "m.text",
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body: "Not sure what image you wanted to add. Try replying to an uploaded image when you use the command, or write an mxc:// URL in your message."
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})
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}
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const sent = await api.sendEvent(event.room_id, "m.room.message", {
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...ctx,
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...new MatrixStringBuilder()
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.addLine("## Emoji preview", "<h2>Emoji preview</h2>")
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.addLine(`Ⓜ️ This room isn't bridged to Discord. ${matrixOnlyConclusion}`, `Ⓜ️ <em>This room isn't bridged to Discord. ${matrixOnlyConclusion}</em>`, matrixOnlyReason === "NOT_BRIDGED")
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.addLine(`Ⓜ️ *Discord ran out of space for emojis. ${matrixOnlyConclusion}`, `Ⓜ️ <em>Discord ran out of space for emojis. ${matrixOnlyConclusion}</em>`, matrixOnlyReason === "CAPACITY")
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.addLine(`Ⓜ️ *If you were a Discord user, you wouldn't have permission to create emojis. ${matrixOnlyConclusion}`, `Ⓜ️ <em>If you were a Discord user, you wouldn't have permission to create emojis. ${matrixOnlyConclusion}</em>`, matrixOnlyReason === "CAPACITY")
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.addLine("[Preview not available in plain text.]", `Preview: <img data-mx-emoticon height="48" src="${mxc}">`)
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.addLine("Hit ✅ to add it.")
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.get()
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})
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addButton(event.room_id, sent, "✅", event.sender).then(async () => {
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const publicUrl = mxUtils.getPublicUrlForMxc(mxc)
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// @ts-ignore
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const resizeInput = await fetch(publicUrl, {agent: false}).then(res => res.arrayBuffer())
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const resizeOutput = await sharp(resizeInput)
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.resize(EMOJI_SIZE, EMOJI_SIZE, {fit: "inside", withoutEnlargement: true, background: {r: 0, g: 0, b: 0, alpha: 0}})
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.png()
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.toBuffer({resolveWithObject: true})
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if (matrixOnlyReason) {
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// Edit some state keys
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api.sendEvent(event.room_id, "m.room.message", {
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...ctx,
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msgtype: "m.text",
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body: "Sorry, adding Matrix-only emojis not supported yet!!"
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})
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} else {
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// Upload it to Discord and have the bridge sync it back to Matrix again
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console.log(`uploading emoji ${resizeOutput.data.length} bytes to :${name}:`)
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const emoji = await discord.snow.guildAssets.createEmoji(guildID, {name, image: "data:image/png;base64," + resizeOutput.data.toString("base64")})
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api.sendEvent(event.room_id, "m.room.message", {
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...ctx,
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msgtype: "m.text",
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body: `Created :${name}:`
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})
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}
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})
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}
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)
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}]
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/** @type {CommandExecute} */
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async function execute(event) {
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let realBody = event.content.body
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while (realBody.startsWith("> ")) {
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const i = realBody.indexOf("\n")
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if (i === -1) return
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realBody = realBody.slice(i + 1)
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}
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realBody = realBody.replace(/^\s*/, "")
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let words
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for (const prefix of PREFIXES) {
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if (realBody.startsWith(prefix)) {
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words = realBody.slice(prefix.length).split(" ")
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break
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}
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}
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if (!words) return
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const commandName = words[0]
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const command = commands.find(c => c.aliases.includes(commandName))
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if (!command) return
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await command.execute(event)
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}
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module.exports.execute = execute
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module.exports.onReactionAdd = onReactionAdd
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