const assert = require("assert").strict const util = require("util") const {sync, db} = require("../passthrough") /** @type {import("./actions/send-message")}) */ const sendMessage = sync.require("./actions/send-message") /** @type {import("./actions/edit-message")}) */ const editMessage = sync.require("./actions/edit-message") /** @type {import("./actions/delete-message")}) */ const deleteMessage = sync.require("./actions/delete-message") /** @type {import("./actions/add-reaction")}) */ const addReaction = sync.require("./actions/add-reaction") /** @type {import("../matrix/api")}) */ const api = sync.require("../matrix/api") let lastReportedEvent = 0 function isGuildAllowed(guildID) { return ["112760669178241024", "497159726455455754", "1100319549670301727"].includes(guildID) } // Grab Discord events we care about for the bridge, check them, and pass them on module.exports = { /** * @param {import("./discord-client")} client * @param {Error} e * @param {import("cloudstorm").IGatewayMessage} gatewayMessage */ onError(client, e, gatewayMessage) { 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? definitely need to be able to store the formatted event body to load back in later console.error(`while handling this ${gatewayMessage.t} gateway event:`) console.dir(gatewayMessage.d, {depth: null}) if (Date.now() - lastReportedEvent < 5000) return lastReportedEvent = Date.now() const channelID = gatewayMessage.d.channel_id if (!channelID) return const roomID = db.prepare("SELECT room_id FROM channel_room WHERE channel_id = ?").pluck().get(channelID) if (!roomID) return let stackLines = e.stack.split("\n") let cloudstormLine = stackLines.findIndex(l => l.includes("/node_modules/cloudstorm/")) if (cloudstormLine !== -1) { stackLines = stackLines.slice(0, cloudstormLine - 2) } api.sendEvent(roomID, "m.room.message", { msgtype: "m.text", body: "\u26a0 Bridged event from Discord not delivered. See formatted content for full details.", format: "org.matrix.custom.html", formatted_body: "\u26a0 Bridged event from Discord not delivered" + `
Gateway event: ${gatewayMessage.t}` + `
${e.toString()}` + `
Error trace` + `
${stackLines.join("\n")}
` + `
Original payload` + `
${util.inspect(gatewayMessage.d, false, 4, false)}
`, "m.mentions": { user_ids: ["@cadence:cadence.moe"] } }) }, /** * @param {import("./discord-client")} client * @param {import("discord-api-types/v10").GatewayMessageCreateDispatchData} message */ async onMessageCreate(client, message) { if (message.webhook_id) { const row = db.prepare("SELECT webhook_id FROM webhook WHERE webhook_id = ?").pluck().get(message.webhook_id) if (row) { // The message was sent by the bridge's own webhook on discord. We don't want to reflect this back, so just drop it. return } } /** @type {import("discord-api-types/v10").APIGuildChannel} */ const channel = client.channels.get(message.channel_id) if (!channel.guild_id) return // Nothing we can do in direct messages. const guild = client.guilds.get(channel.guild_id) if (!isGuildAllowed(guild.id)) return await sendMessage.sendMessage(message, guild) }, /** * @param {import("./discord-client")} client * @param {import("discord-api-types/v10").GatewayMessageUpdateDispatchData} message */ async onMessageUpdate(client, data) { if (data.webhook_id) { const row = db.prepare("SELECT webhook_id FROM webhook WHERE webhook_id = ?").pluck().get(data.webhook_id) if (row) { // The update was sent by the bridge's own webhook on discord. We don't want to reflect this back, so just drop it. return } } // Based on looking at data they've sent me over the gateway, this is the best way to check for meaningful changes. // If the message content is a string then it includes all interesting fields and is meaningful. if (typeof data.content === "string") { /** @type {import("discord-api-types/v10").GatewayMessageCreateDispatchData} */ const message = data /** @type {import("discord-api-types/v10").APIGuildChannel} */ const channel = client.channels.get(message.channel_id) if (!channel.guild_id) return // Nothing we can do in direct messages. const guild = client.guilds.get(channel.guild_id) if (!isGuildAllowed(guild.id)) return await editMessage.editMessage(message, guild) } }, /** * @param {import("./discord-client")} client * @param {import("discord-api-types/v10").GatewayMessageReactionAddDispatchData} data */ async onReactionAdd(client, data) { if (data.user_id === client.user.id) return // m2d reactions are added by the discord bot user - do not reflect them back to matrix. if (data.emoji.id !== null) return // TODO: image emoji reactions await addReaction.addReaction(data) }, /** * @param {import("./discord-client")} client * @param {import("discord-api-types/v10").GatewayMessageDeleteDispatchData} data */ async onMessageDelete(client, data) { await deleteMessage.deleteMessage(data) } }