72 lines
2.9 KiB
JavaScript
72 lines
2.9 KiB
JavaScript
// @ts-check
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const DiscordTypes = require("discord-api-types/v10")
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const Ty = require("../../types")
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const passthrough = require("../../passthrough")
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const {discord, as, sync, db, select, from} = passthrough
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/** @type {import("../../matrix/utils")} */
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const utils = sync.require("../../matrix/utils")
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/** @type {import("../../d2m/actions/retrigger")} */
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const retrigger = sync.require("../../d2m/actions/retrigger")
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/**
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* @param {Ty.Event.Outer_M_Room_Redaction} event
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*/
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async function deleteMessage(event) {
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const rows = from("event_message").join("message_room", "message_id").join("historical_channel_room", "historical_room_index")
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.select("reference_channel_id", "message_id").where({event_id: event.redacts}).all()
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if (!rows.length) return
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for (const row of rows) {
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await discord.snow.channel.deleteMessage(row.reference_channel_id, row.message_id, event.content.reason)
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db.prepare("DELETE FROM event_message WHERE message_id = ?").run(row.message_id)
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}
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db.prepare("DELETE FROM message_room WHERE message_id = ?").run(rows[0].message_id)
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}
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/**
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* @param {Ty.Event.Outer_M_Room_Redaction} event
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*/
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async function suppressEmbeds(event) {
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const rows = from("event_message").join("message_room", "message_id").join("historical_channel_room", "historical_room_index")
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.select("reference_channel_id", "message_id").where({event_id: event.redacts}).all()
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if (!rows.length) return
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db.prepare("DELETE FROM event_message WHERE event_id = ?").run(event.redacts)
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for (const row of rows) {
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await discord.snow.channel.editMessage(row.reference_channel_id, row.message_id, {flags: DiscordTypes.MessageFlags.SuppressEmbeds})
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}
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}
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/**
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* @param {Ty.Event.Outer_M_Room_Redaction} event
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*/
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async function removeReaction(event) {
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const hash = utils.getEventIDHash(event.redacts)
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const row = from("reaction").join("message_room", "message_id").join("historical_channel_room", "historical_room_index")
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.select("reference_channel_id", "message_id", "encoded_emoji").where({hashed_event_id: hash}).get()
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if (!row) return
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await discord.snow.channel.deleteReactionSelf(row.reference_channel_id, row.message_id, row.encoded_emoji)
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db.prepare("DELETE FROM reaction WHERE hashed_event_id = ?").run(hash)
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}
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/**
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* Try everything that could possibly be redacted.
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* @param {Ty.Event.Outer_M_Room_Redaction} event
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*/
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async function handle(event) {
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// If this is for removing a reaction, try it
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await removeReaction(event)
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// Or, it might be for removing a message or suppressing embeds. But to do that, the message needs to be bridged first.
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if (retrigger.eventNotFoundThenRetrigger(event.redacts, () => as.emit("type:m.room.redaction", event))) return
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const row = select("event_message", ["event_type", "event_subtype", "part"], {event_id: event.redacts}).get()
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if (row && row.event_type === "m.room.message" && row.event_subtype === "m.notice" && row.part === 1) {
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await suppressEmbeds(event)
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} else {
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await deleteMessage(event)
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}
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}
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module.exports.handle = handle
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