Added a comment explaining sims to db\orm-defs.d.ts

.gitignore

@@ -1,16 +1,7 @@
-# Secrets
+node_modules
 config.js
 registration.yaml
-ooye.db*
-events.db*
-
-# Automatically generated
-node_modules
 coverage
+db/ooye.db*
 test/res/*
 !test/res/lottie*
-icon.svg
-*~
-.#*
-\#*#
-launch.json

addbot.js

@@ -1,18 +1,15 @@
-#!/usr/bin/env node
 // @ts-check
 
-const {reg} = require("./src/matrix/read-registration")
-const token = reg.ooye.discord_token
-const id = Buffer.from(token.split(".")[0], "base64").toString()
+const config = require("./config")
 
 function addbot() {
+	const token = config.discordToken
+	const id = Buffer.from(token.split(".")[0], "base64")
 	return `Open this link to add the bot to a Discord server:\nhttps://discord.com/oauth2/authorize?client_id=${id}&scope=bot&permissions=1610883072 `
 }
 
-/* c8 ignore next 3 */
 if (process.argv.find(a => a.endsWith("addbot") || a.endsWith("addbot.js"))) {
 	console.log(addbot())
 }
 
-module.exports.id = id
 module.exports.addbot = addbot

addbot.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env sh
 echo "Open this link to add the bot to a Discord server:"
-echo "https://discord.com/oauth2/authorize?client_id=$(grep discord_token registration.yaml | sed -E 's!.*: ["'\'']([A-Za-z0-9+=/_-]*).*!\1!g' | base64 -d)&scope=bot&permissions=1610883072"
+echo "https://discord.com/oauth2/authorize?client_id=$(grep discordToken config.js | sed -E 's!.*: ["'\'']([A-Za-z0-9+=/_-]*).*!\1!g' | base64 -d)&scope=bot&permissions=1610883072"

config.example.js

@@ -0,0 +1,3 @@
+module.exports = {
+	discordToken: "yes"
+}

d2m/actions/create-room.js

@@ -2,8 +2,7 @@
 
 const assert = require("assert").strict
 const DiscordTypes = require("discord-api-types/v10")
-const Ty = require("../../types")
-const {reg} = require("../../matrix/read-registration")
+const reg = require("../../matrix/read-registration")
 
 const passthrough = require("../../passthrough")
 const {discord, sync, db, select} = passthrough
@@ -13,8 +12,8 @@ const file = sync.require("../../matrix/file")
 const api = sync.require("../../matrix/api")
 /** @type {import("../../matrix/kstate")} */
 const ks = sync.require("../../matrix/kstate")
-/** @type {import("../../discord/utils")} */
-const utils = sync.require("../../discord/utils")
+/** @type {import("./create-space")}) */
+const createSpace = sync.require("./create-space") // watch out for the require loop
 
 /**
  * There are 3 levels of room privacy:
@@ -50,24 +49,21 @@ async function roomToKState(roomID) {
  * @param {string} roomID
  * @param {any} kstate
  */
-async function applyKStateDiffToRoom(roomID, kstate) {
-	const events = await ks.kstateToState(kstate)
+function applyKStateDiffToRoom(roomID, kstate) {
+	const events = ks.kstateToState(kstate)
 	return Promise.all(events.map(({type, state_key, content}) =>
 		api.sendState(roomID, type, state_key, content)
 	))
 }
 
 /**
- * @param {{id: string, name: string, topic?: string?, type: number, parent_id?: string?}} channel
+ * @param {{id: string, name: string, topic?: string?, type: number}} channel
  * @param {{id: string}} guild
  * @param {string | null | undefined} customName
  */
 function convertNameAndTopic(channel, guild, customName) {
-	// @ts-ignore
-	const parentChannel = discord.channels.get(channel.parent_id)
 	let channelPrefix =
-		( parentChannel?.type === DiscordTypes.ChannelType.GuildForum ? ""
-		: channel.type === DiscordTypes.ChannelType.PublicThread ? "[⛓️] "
+		( channel.type === DiscordTypes.ChannelType.PublicThread ? "[⛓️] "
 		: channel.type === DiscordTypes.ChannelType.PrivateThread ? "[🔒⛓️] "
 		: channel.type === DiscordTypes.ChannelType.GuildVoice ? "[🔊] "
 		: "")
@@ -88,36 +84,26 @@ function convertNameAndTopic(channel, guild, customName) {
  * Async because it may create the guild and/or upload the guild icon to mxc.
  * @param {DiscordTypes.APIGuildTextChannel | DiscordTypes.APIThreadChannel} channel
  * @param {DiscordTypes.APIGuild} guild
- * @param {{api: {getStateEvent: typeof api.getStateEvent}}} di simple-as-nails dependency injection for the matrix API
  */
-async function channelToKState(channel, guild, di) {
-	// @ts-ignore
-	const parentChannel = discord.channels.get(channel.parent_id)
-	const guildRow = select("guild_space", ["space_id", "privacy_level"], {guild_id: guild.id}).get()
-	assert(guildRow)
+async function channelToKState(channel, guild) {
+	const spaceID = await createSpace.ensureSpace(guild)
+	assert(typeof spaceID === "string")
+	const privacyLevel = select("guild_space", "privacy_level", {space_id: spaceID}).pluck().get()
+	assert(typeof privacyLevel === "number")
 
-	/** Used for membership/permission checks. */
-	let guildSpaceID = guildRow.space_id
-	/** Used as the literal parent on Matrix, for categorisation. Will be the same as `guildSpaceID` unless it's a forum channel's thread, in which case a different space is used to group those threads. */
-	let parentSpaceID = guildSpaceID
-	if (parentChannel?.type === DiscordTypes.ChannelType.GuildForum) {
-		parentSpaceID = await ensureRoom(channel.parent_id)
-		assert(typeof parentSpaceID === "string")
-	}
-
-	const channelRow = select("channel_room", ["nick", "custom_avatar"], {channel_id: channel.id}).get()
-	const customName = channelRow?.nick
-	const customAvatar = channelRow?.custom_avatar
+	const row = select("channel_room", ["nick", "custom_avatar"], {channel_id: channel.id}).get()
+	const customName = row?.nick
+	const customAvatar = row?.custom_avatar
 	const [convertedName, convertedTopic] = convertNameAndTopic(channel, guild, customName)
 
 	const avatarEventContent = {}
 	if (customAvatar) {
 		avatarEventContent.url = customAvatar
 	} else if (guild.icon) {
-		avatarEventContent.url = {$url: file.guildIcon(guild)}
+		avatarEventContent.discord_path = file.guildIcon(guild)
+		avatarEventContent.url = await file.uploadDiscordFileToMxc(avatarEventContent.discord_path) // TODO: somehow represent future values in kstate (callbacks?), while still allowing for diffing, so test cases don't need to touch the media API
 	}
 
-	const privacyLevel = guildRow.privacy_level
 	let history_visibility = PRIVACY_ENUMS.ROOM_HISTORY_VISIBILITY[privacyLevel]
 	if (channel["thread_metadata"]) history_visibility = "world_readable"
 
@@ -126,40 +112,30 @@ async function channelToKState(channel, guild, di) {
 		join_rule: "restricted",
 		allow: [{
 			type: "m.room_membership",
-			room_id: guildSpaceID
+			room_id: spaceID
 		}]
 	}
 	if (PRIVACY_ENUMS.ROOM_JOIN_RULES[privacyLevel] !== "restricted") {
 		join_rules = {join_rule: PRIVACY_ENUMS.ROOM_JOIN_RULES[privacyLevel]}
 	}
 
-	const everyonePermissions = utils.getPermissions([], guild.roles, undefined, channel.permission_overwrites)
-	const everyoneCanMentionEveryone = utils.hasAllPermissions(everyonePermissions, ["MentionEveryone"])
-
-	const globalAdmins = select("member_power", ["mxid", "power_level"], {room_id: "*"}).all()
-	const globalAdminPower = globalAdmins.reduce((a, c) => (a[c.mxid] = c.power_level, a), {})
-
-	/** @type {Ty.Event.M_Power_Levels} */
-	const spacePowerEvent = await di.api.getStateEvent(guildSpaceID, "m.room.power_levels", "")
-	const spacePower = spacePowerEvent.users
-
 	const channelKState = {
 		"m.room.name/": {name: convertedName},
 		"m.room.topic/": {topic: convertedTopic},
 		"m.room.avatar/": avatarEventContent,
 		"m.room.guest_access/": {guest_access: PRIVACY_ENUMS.GUEST_ACCESS[privacyLevel]},
 		"m.room.history_visibility/": {history_visibility},
-		[`m.space.parent/${parentSpaceID}`]: {
+		[`m.space.parent/${spaceID}`]: {
 			via: [reg.ooye.server_name],
 			canonical: true
 		},
 		/** @type {{join_rule: string, [x: string]: any}} */
 		"m.room.join_rules/": join_rules,
 		"m.room.power_levels/": {
-			notifications: {
-				room: everyoneCanMentionEveryone ? 0 : 20
+			events: {
+				"m.room.avatar": 0
 			},
-			users: {...spacePower, ...globalAdminPower}
+			users: reg.ooye.invite.reduce((a, c) => (a[c] = 100, a), {})
 		},
 		"chat.schildi.hide_ui/read_receipts": {
 			hidden: true
@@ -173,7 +149,7 @@ async function channelToKState(channel, guild, di) {
 			network: {
 				id: guild.id,
 				displayname: guild.name,
-				avatar_url: {$url: file.guildIcon(guild)}
+				avatar_url: await file.uploadDiscordFileToMxc(file.guildIcon(guild))
 			},
 			channel: {
 				id: channel.id,
@@ -183,7 +159,7 @@ async function channelToKState(channel, guild, di) {
 		}
 	}
 
-	return {spaceID: parentSpaceID, privacyLevel, channelKState}
+	return {spaceID, privacyLevel, channelKState}
 }
 
 /**
@@ -199,9 +175,6 @@ async function createRoom(channel, guild, spaceID, kstate, privacyLevel) {
 	let threadParent = null
 	if (channel.type === DiscordTypes.ChannelType.PublicThread) threadParent = channel.parent_id
 
-	let spaceCreationContent = {}
-	if (channel.type === DiscordTypes.ChannelType.GuildForum) spaceCreationContent = {creation_content: {type: "m.space"}}
-
 	// Name and topic can be done earlier in room creation rather than in initial_state
 	// https://spec.matrix.org/latest/client-server-api/#creation
 	const name = kstate["m.room.name/"].name
@@ -218,8 +191,7 @@ async function createRoom(channel, guild, spaceID, kstate, privacyLevel) {
 			preset: PRIVACY_ENUMS.PRESET[privacyLevel], // This is closest to what we want, but properties from kstate override it anyway
 			visibility: PRIVACY_ENUMS.VISIBILITY[privacyLevel],
 			invite: [],
-			initial_state: await ks.kstateToState(kstate),
-			...spaceCreationContent
+			initial_state: ks.kstateToState(kstate)
 		})
 
 		db.prepare("INSERT INTO channel_room (channel_id, room_id, name, nick, thread_parent) VALUES (?, ?, ?, NULL, ?)").run(channel.id, roomID, channel.name, threadParent)
@@ -272,61 +244,6 @@ function channelToGuild(channel) {
 	return guild
 }
 
-/**
- * This function handles whether it's allowed to bridge messages in this channel, and if so, where to.
- * This has to account for whether self-service is enabled for the guild or not.
- * This also has to account for different channel types, like forum channels (which need the
- * parent forum to already exist, and ignore the self-service setting), or thread channels (which
- * need the parent channel to already exist, and ignore the self-service setting).
- * @param {DiscordTypes.APIGuildTextChannel | DiscordTypes.APIThreadChannel} channel text channel or thread
- * @param {string} guildID
- * @returns obj if bridged; 1 if autocreatable; null/undefined if guild is not bridged; 0 if self-service and not autocreatable thread
- */
-function existsOrAutocreatable(channel, guildID) {
-	// 1. If the channel is already linked somewhere, it's always okay to bridge to that destination, no matter what. Yippee!
-	const existing = select("channel_room", ["room_id", "thread_parent"], {channel_id: channel.id}).get()
-	if (existing) return existing
-
-	// 2. If the guild is an autocreate guild, it's always okay to bridge to that destination, and
-	// we'll need to create any dependent resources recursively.
-	const autocreate = select("guild_active", "autocreate", {guild_id: guildID}).pluck().get()
-	if (autocreate === 1) return autocreate
-
-	// 3. If the guild is not approved for bridging yet, we can't bridge there.
-	// They need to decide one way or another whether it's self-service before we can continue.
-	if (autocreate == null) return autocreate
-
-	// 4. If we got here, the guild is in self-service mode.
-	// New channels won't be able to create new rooms. But forum threads or channel threads could be fine.
-	if ([DiscordTypes.ChannelType.PublicThread, DiscordTypes.ChannelType.PrivateThread, DiscordTypes.ChannelType.AnnouncementThread].includes(channel.type)) {
-		// In self-service mode, threads rely on the parent resource already existing.
-		/** @type {DiscordTypes.APIGuildTextChannel} */ // @ts-ignore
-		const parent = discord.channels.get(channel.parent_id)
-		assert(parent)
-		const parentExisting = existsOrAutocreatable(parent, guildID)
-		if (parentExisting) return 1 // Autocreatable
-	}
-
-	// 5. If we got here, the guild is in self-service mode and the channel is truly not bridged.
-	return autocreate
-}
-
-/**
- * @param {DiscordTypes.APIGuildTextChannel | DiscordTypes.APIThreadChannel} channel text channel or thread
- * @param {string} guildID
- * @returns obj if bridged; 1 if autocreatable. (throws if not autocreatable)
- */
-function assertExistsOrAutocreatable(channel, guildID) {
-	const existing = existsOrAutocreatable(channel, guildID)
-	if (existing === 0) {
-		throw new Error(`Guild ${guildID} is self-service, so won't create a Matrix room for channel ${channel.id}`)
-	}
-	if (!existing) {
-		throw new Error(`Guild ${guildID} is not bridged, so won't create a Matrix room for channel ${channel.id}`)
-	}
-	return existing
-}
-
 /*
 	Ensure flow:
 	1. Get IDs
@@ -345,7 +262,6 @@ function assertExistsOrAutocreatable(channel, guildID) {
 */
 
 /**
- * Create room and/or sync room data. Please check that a channel_room entry exists or autocreate = 1 before calling this.
  * @param {string} channelID
  * @param {boolean} shouldActuallySync false if just need to ensure room exists (which is a quick database check), true if also want to sync room data when it does exist (slow)
  * @returns {Promise<string>} room ID
@@ -360,11 +276,11 @@ async function _syncRoom(channelID, shouldActuallySync) {
 		await inflightRoomCreate.get(channelID) // just waiting, and then doing a new db query afterwards, is the simplest way of doing it
 	}
 
-	const existing = assertExistsOrAutocreatable(channel, guild.id)
+	const existing = select("channel_room", ["room_id", "thread_parent"], {channel_id: channelID}).get()
 
-	if (existing === 1) {
+	if (!existing) {
 		const creation = (async () => {
-			const {spaceID, privacyLevel, channelKState} = await channelToKState(channel, guild, {api})
+			const {spaceID, privacyLevel, channelKState} = await channelToKState(channel, guild)
 			const roomID = await createRoom(channel, guild, spaceID, channelKState, privacyLevel)
 			inflightRoomCreate.delete(channelID) // OK to release inflight waiters now. they will read the correct `existing` row
 			return roomID
@@ -381,7 +297,7 @@ async function _syncRoom(channelID, shouldActuallySync) {
 
 	console.log(`[room sync] to matrix: ${channel.name}`)
 
-	const {spaceID, channelKState} = await channelToKState(channel, guild, {api}) // calling this in both branches because we don't want to calculate this if not syncing
+	const {spaceID, channelKState} = await channelToKState(channel, guild) // calling this in both branches because we don't want to calculate this if not syncing
 
 	// sync channel state to room
 	const roomKState = await roomToKState(roomID)
@@ -402,12 +318,12 @@ async function _syncRoom(channelID, shouldActuallySync) {
 	return roomID
 }
 
-/** Ensures the room exists. If it doesn't, creates the room with an accurate initial state. Please check that a channel_room entry exists or guild autocreate = 1 before calling this. */
+/** Ensures the room exists. If it doesn't, creates the room with an accurate initial state. */
 function ensureRoom(channelID) {
 	return _syncRoom(channelID, false)
 }
 
-/** Actually syncs. Gets all room state from the homeserver in order to diff, and uploads the icon to mxc if it has changed. Please check that a channel_room entry exists or guild autocreate = 1 before calling this. */
+/** Actually syncs. Gets all room state from the homeserver in order to diff, and uploads the icon to mxc if it has changed. */
 function syncRoom(channelID) {
 	return _syncRoom(channelID, true)
 }
@@ -416,16 +332,11 @@ async function _unbridgeRoom(channelID) {
 	/** @ts-ignore @type {DiscordTypes.APIGuildChannel} */
 	const channel = discord.channels.get(channelID)
 	assert.ok(channel)
-	assert.ok(channel.guild_id)
-	return unbridgeDeletedChannel(channel, channel.guild_id)
+	return unbridgeDeletedChannel(channel.id, channel.guild_id)
 }
 
-/**
- * @param {{id: string, topic?: string?}} channel
- * @param {string} guildID
- */
-async function unbridgeDeletedChannel(channel, guildID) {
-	const roomID = select("channel_room", "room_id", {channel_id: channel.id}).pluck().get()
+async function unbridgeDeletedChannel(channelID, guildID) {
+	const roomID = select("channel_room", "room_id", {channel_id: channelID}).pluck().get()
 	assert.ok(roomID)
 	const spaceID = select("guild_space", "space_id", {guild_id: guildID}).pluck().get()
 	assert.ok(spaceID)
@@ -435,11 +346,7 @@ async function unbridgeDeletedChannel(channel, guildID) {
 	await api.sendState(spaceID, "m.space.child", roomID, {})
 
 	// remove declaration that the room is bridged
-	await api.sendState(roomID, "uk.half-shot.bridge", `moe.cadence.ooye://discord/${guildID}/${channel.id}`, {})
-	if ("topic" in channel) {
-		// previously the Matrix topic would say the channel ID. we should remove that
-		await api.sendState(roomID, "m.room.topic", "", {topic: channel.topic || ""})
-	}
+	await api.sendState(roomID, "uk.half-shot.bridge", `moe.cadence.ooye://discord/${guildID}/${channelID}`, {})
 
 	// send a notification in the room
 	await api.sendEvent(roomID, "m.room.message", {
@@ -451,7 +358,8 @@ async function unbridgeDeletedChannel(channel, guildID) {
 	await api.leaveRoom(roomID)
 
 	// delete room from database
-	db.prepare("DELETE FROM channel_room WHERE room_id = ? AND channel_id = ?").run(roomID, channel.id)
+	const {changes} = db.prepare("DELETE FROM channel_room WHERE room_id = ? AND channel_id = ?").run(roomID, channelID)
+	assert.equal(changes, 1)
 }
 
 /**
@@ -504,5 +412,3 @@ module.exports.postApplyPowerLevels = postApplyPowerLevels
 module.exports._convertNameAndTopic = convertNameAndTopic
 module.exports._unbridgeRoom = _unbridgeRoom
 module.exports.unbridgeDeletedChannel = unbridgeDeletedChannel
-module.exports.existsOrAutocreatable = existsOrAutocreatable
-module.exports.assertExistsOrAutocreatable = assertExistsOrAutocreatable

d2m/actions/create-room.test.js

@@ -1,97 +1,42 @@
 // @ts-check
 
-const mixin = require("@cloudrac3r/mixin-deep")
 const {channelToKState, _convertNameAndTopic} = require("./create-room")
 const {kstateStripConditionals} = require("../../matrix/kstate")
 const {test} = require("supertape")
-const testData = require("../../../test/data")
+const testData = require("../../test/data")
 
 const passthrough = require("../../passthrough")
 const {db} = passthrough
 
-
 test("channel2room: discoverable privacy room", async t => {
-	let called = 0
-	async function getStateEvent(roomID, type, key) { // getting power levels from space to apply to room
-		called++
-		t.equal(roomID, "!jjWAGMeQdNrVZSSfvz:cadence.moe")
-		t.equal(type, "m.room.power_levels")
-		t.equal(key, "")
-		return {users: {"@example:matrix.org": 50}}
-	}
 	db.prepare("UPDATE guild_space SET privacy_level = 2").run()
 	t.deepEqual(
-		kstateStripConditionals(await channelToKState(testData.channel.general, testData.guild.general, {api: {getStateEvent}}).then(x => x.channelKState)),
+		kstateStripConditionals(await channelToKState(testData.channel.general, testData.guild.general).then(x => x.channelKState)),
 		Object.assign({}, testData.room.general, {
 			"m.room.guest_access/": {guest_access: "forbidden"},
 			"m.room.join_rules/": {join_rule: "public"},
-			"m.room.history_visibility/": {history_visibility: "world_readable"},
-			"m.room.power_levels/": mixin({users: {"@example:matrix.org": 50}}, testData.room.general["m.room.power_levels/"])
+			"m.room.history_visibility/": {history_visibility: "world_readable"}
 		})
 	)
-	t.equal(called, 1)
 })
 
 test("channel2room: linkable privacy room", async t => {
-	let called = 0
-	async function getStateEvent(roomID, type, key) { // getting power levels from space to apply to room
-		called++
-		t.equal(roomID, "!jjWAGMeQdNrVZSSfvz:cadence.moe")
-		t.equal(type, "m.room.power_levels")
-		t.equal(key, "")
-		return {users: {"@example:matrix.org": 50}}
-	}
 	db.prepare("UPDATE guild_space SET privacy_level = 1").run()
 	t.deepEqual(
-		kstateStripConditionals(await channelToKState(testData.channel.general, testData.guild.general, {api: {getStateEvent}}).then(x => x.channelKState)),
+		kstateStripConditionals(await channelToKState(testData.channel.general, testData.guild.general).then(x => x.channelKState)),
 		Object.assign({}, testData.room.general, {
 			"m.room.guest_access/": {guest_access: "forbidden"},
-			"m.room.join_rules/": {join_rule: "public"},
-			"m.room.power_levels/": mixin({users: {"@example:matrix.org": 50}}, testData.room.general["m.room.power_levels/"])
+			"m.room.join_rules/": {join_rule: "public"}
 		})
 	)
-	t.equal(called, 1)
 })
 
 test("channel2room: invite-only privacy room", async t => {
-	let called = 0
-	async function getStateEvent(roomID, type, key) { // getting power levels from space to apply to room
-		called++
-		t.equal(roomID, "!jjWAGMeQdNrVZSSfvz:cadence.moe")
-		t.equal(type, "m.room.power_levels")
-		t.equal(key, "")
-		return {users: {"@example:matrix.org": 50}}
-	}
 	db.prepare("UPDATE guild_space SET privacy_level = 0").run()
 	t.deepEqual(
-		kstateStripConditionals(await channelToKState(testData.channel.general, testData.guild.general, {api: {getStateEvent}}).then(x => x.channelKState)),
-		Object.assign({}, testData.room.general, {
-			"m.room.power_levels/": mixin({users: {"@example:matrix.org": 50}}, testData.room.general["m.room.power_levels/"])
-		})
+		kstateStripConditionals(await channelToKState(testData.channel.general, testData.guild.general).then(x => x.channelKState)),
+		testData.room.general
 	)
-	t.equal(called, 1)
-})
-
-test("channel2room: room where limited people can mention everyone", async t => {
-	let called = 0
-	async function getStateEvent(roomID, type, key) { // getting power levels from space to apply to room
-		called++
-		t.equal(roomID, "!jjWAGMeQdNrVZSSfvz:cadence.moe")
-		t.equal(type, "m.room.power_levels")
-		t.equal(key, "")
-		return {users: {"@example:matrix.org": 50}}
-	}
-	const limitedGuild = mixin({}, testData.guild.general)
-	limitedGuild.roles[0].permissions = (BigInt(limitedGuild.roles[0].permissions) - 131072n).toString()
-	const limitedRoom = mixin({}, testData.room.general, {"m.room.power_levels/": {
-		notifications: {room: 20},
-		users: {"@example:matrix.org": 50}
-	}})
-	t.deepEqual(
-		kstateStripConditionals(await channelToKState(testData.channel.general, limitedGuild, {api: {getStateEvent}}).then(x => x.channelKState)),
-		limitedRoom
-	)
-	t.equal(called, 1)
 })
 
 test("convertNameAndTopic: custom name and topic", t => {

d2m/actions/create-space.js

@@ -1,10 +1,9 @@
 // @ts-check
 
 const assert = require("assert").strict
-const {isDeepStrictEqual} = require("util")
 const DiscordTypes = require("discord-api-types/v10")
-const Ty = require("../../types")
-const {reg} = require("../../matrix/read-registration")
+const deepEqual = require("deep-equal")
+const reg = require("../../matrix/read-registration")
 
 const passthrough = require("../../passthrough")
 const {discord, sync, db, select} = passthrough
@@ -31,8 +30,6 @@ async function createSpace(guild, kstate) {
 	const topic = kstate["m.room.topic/"]?.topic || undefined
 	assert(name)
 
-	const globalAdmins = select("member_power", "mxid", {room_id: "*"}).pluck().all()
-
 	const roomID = await createRoom.postApplyPowerLevels(kstate, async kstate => {
 		return api.createRoom({
 			name,
@@ -42,12 +39,12 @@ async function createSpace(guild, kstate) {
 				events_default: 100, // space can only be managed by bridge
 				invite: 0 // any existing member can invite others
 			},
-			invite: globalAdmins,
+			invite: reg.ooye.invite,
 			topic,
 			creation_content: {
 				type: "m.space"
 			},
-			initial_state: await ks.kstateToState(kstate)
+			initial_state: ks.kstateToState(kstate)
 		})
 	})
 	db.prepare("INSERT INTO guild_space (guild_id, space_id) VALUES (?, ?)").run(guild.id, roomID)
@@ -59,18 +56,19 @@ async function createSpace(guild, kstate) {
  * @param {number} privacyLevel
  */
 async function guildToKState(guild, privacyLevel) {
-	assert.equal(typeof privacyLevel, "number")
-	const globalAdmins = select("member_power", ["mxid", "power_level"], {room_id: "*"}).all()
+	const avatarEventContent = {}
+	if (guild.icon) {
+		avatarEventContent.discord_path = file.guildIcon(guild)
+		avatarEventContent.url = await file.uploadDiscordFileToMxc(avatarEventContent.discord_path) // TODO: somehow represent future values in kstate (callbacks?), while still allowing for diffing, so test cases don't need to touch the media API
+	}
+
 	const guildKState = {
 		"m.room.name/": {name: guild.name},
-		"m.room.avatar/": {
-			$if: guild.icon,
-			url: {$url: file.guildIcon(guild)}
-		},
+		"m.room.avatar/": avatarEventContent,
 		"m.room.guest_access/": {guest_access: createRoom.PRIVACY_ENUMS.GUEST_ACCESS[privacyLevel]},
 		"m.room.history_visibility/": {history_visibility: createRoom.PRIVACY_ENUMS.SPACE_HISTORY_VISIBILITY[privacyLevel]},
 		"m.room.join_rules/": {join_rule: createRoom.PRIVACY_ENUMS.SPACE_JOIN_RULES[privacyLevel]},
-		"m.room.power_levels/": {users: globalAdmins.reduce((a, c) => (a[c.mxid] = c.power_level, a), {})} // used in guild initial creation postApplyPowerLevels
+		"m.room.power_levels/": {users: reg.ooye.invite.reduce((a, c) => (a[c] = 100, a), {})}
 	}
 
 	return guildKState
@@ -92,9 +90,6 @@ async function _syncSpace(guild, shouldActuallySync) {
 	const row = select("guild_space", ["space_id", "privacy_level"], {guild_id: guild.id}).get()
 
 	if (!row) {
-		const autocreate = select("guild_active", "autocreate", {guild_id: guild.id}).pluck().get()
-		assert.equal(autocreate, 1, `refusing to implicitly create guild ${guild.id}. set the guild_active data first before calling ensureSpace/syncSpace.`)
-
 		const creation = (async () => {
 			const guildKState = await guildToKState(guild, createRoom.DEFAULT_PRIVACY_LEVEL) // New spaces will have to use the default privacy level; we obviously can't look up the existing entry
 			const spaceID = await createSpace(guild, guildKState)
@@ -127,8 +122,7 @@ async function _syncSpace(guild, shouldActuallySync) {
 		// don't try to update rooms with custom avatars though
 		const roomsWithCustomAvatars = select("channel_room", "room_id", {}, "WHERE custom_avatar IS NOT NULL").pluck().all()
 
-		const state = await ks.kstateToState(spaceKState)
-		const childRooms = state.filter(({type, state_key, content}) => {
+		const childRooms = ks.kstateToState(spaceKState).filter(({type, state_key, content}) => {
 			return type === "m.space.child" && "via" in content && !roomsWithCustomAvatars.includes(state_key)
 		}).map(({state_key}) => state_key)
 
@@ -187,15 +181,17 @@ async function syncSpaceFully(guildID) {
 	const spaceDiff = ks.diffKState(spaceKState, guildKState)
 	await createRoom.applyKStateDiffToRoom(spaceID, spaceDiff)
 
-	const childRooms = await api.getFullHierarchy(spaceID)
+	const childRooms = ks.kstateToState(spaceKState).filter(({type, content}) => {
+		return type === "m.space.child" && "via" in content
+	}).map(({state_key}) => state_key)
 
-	for (const {room_id} of childRooms) {
-		const channelID = select("channel_room", "channel_id", {room_id}).pluck().get()
+	for (const roomID of childRooms) {
+		const channelID = select("channel_room", "channel_id", {room_id: roomID}).pluck().get()
 		if (!channelID) continue
 		if (discord.channels.has(channelID)) {
 			await createRoom.syncRoom(channelID)
 		} else {
-			await createRoom.unbridgeDeletedChannel({id: channelID}, guildID)
+			await createRoom.unbridgeDeletedChannel(channelID, guildID)
 		}
 	}
 
@@ -230,7 +226,7 @@ async function syncSpaceExpressions(data, checkBeforeSync) {
 				// State event not found. This space doesn't have any existing emojis. We create a dummy empty event for comparison's sake.
 				existing = fn([])
 			}
-			if (isDeepStrictEqual(existing, content)) return
+			if (deepEqual(existing, content, {strict: true})) return
 		}
 		api.sendState(spaceID, "im.ponies.room_emotes", eventKey, content)
 	}

d2m/actions/delete-message.js

@@ -33,9 +33,9 @@ async function deleteMessageBulk(data) {
 	if (!roomID) return
 
 	const sids = JSON.stringify(data.ids)
-	const eventsToRedact = from("event_message").pluck("event_id").and("WHERE message_id IN (SELECT value FROM json_each(?))").all(sids)
-	db.prepare("DELETE FROM message_channel WHERE message_id IN (SELECT value FROM json_each(?))").run(sids)
-	db.prepare("DELETE FROM event_message WHERE message_id IN (SELECT value FROM json_each(?))").run(sids)
+	const eventsToRedact = from("event_message").pluck("event_id").and("WHERE message_id IN (SELECT value FROM json_each(?)").all(sids)
+	db.prepare("DELETE FROM message_channel WHERE message_id IN (SELECT value FROM json_each(?)").run(sids)
+	db.prepare("DELETE FROM event_message WHERE message_id IN (SELECT value FROM json_each(?)").run(sids)
 	for (const eventID of eventsToRedact) {
 		// Awaiting will make it go slower, but since this could be a long-running operation either way, we want to leave rate limit capacity for other operations
 		await api.redactEvent(roomID, eventID)

d2m/actions/edit-message.js

@@ -53,7 +53,7 @@ async function editMessage(message, guild, row) {
 	const sendNewEventParts = new Set()
 	for (const promotion of promotions) {
 		if ("eventID" in promotion) {
-			db.prepare(`UPDATE event_message SET ${promotion.column} = ? WHERE event_id = ?`).run(promotion.value ?? 0, promotion.eventID)
+			db.prepare(`UPDATE event_message SET ${promotion.column} = 0 WHERE event_id = ?`).run(promotion.eventID)
 		} else if ("nextEvent" in promotion) {
 			sendNewEventParts.add(promotion.column)
 		}

d2m/actions/expression.js

@@ -30,7 +30,7 @@ async function emojisToState(emojis) {
 			}
 			db.prepare("INSERT OR IGNORE INTO emoji (emoji_id, name, animated, mxc_url) VALUES (?, ?, ?, ?)").run(emoji.id, emoji.name, +!!emoji.animated, url)
 		}).catch(e => {
-			if (e.data?.errcode === "M_TOO_LARGE") { // Very unlikely to happen. Only possible for 3x-series emojis uploaded shortly after animated emojis were introduced, when there was no 256 KB size limit.
+			if (e.data.errcode === "M_TOO_LARGE") { // Very unlikely to happen. Only possible for 3x-series emojis uploaded shortly after animated emojis were introduced, when there was no 256 KB size limit.
 				return
 			}
 			console.error(`Trying to handle emoji ${emoji.name} (${emoji.id}), but...`)
@@ -66,7 +66,7 @@ async function stickersToState(stickers) {
 			while (shortcodes.includes(shortcode)) shortcode = shortcode + "~"
 			shortcodes.push(shortcode)
 
-			result.images[shortcode] = {
+			result.images[shortcodes] = {
 				info: {
 					mimetype: file.stickerFormat.get(sticker.format_type)?.mime || "image/png"
 				},

d2m/actions/register-pk-user.js

@@ -1,7 +1,7 @@
 // @ts-check
 
 const assert = require("assert")
-const {reg} = require("../../matrix/read-registration")
+const reg = require("../../matrix/read-registration")
 const Ty = require("../../types")
 const fetch = require("node-fetch").default
 
@@ -131,7 +131,7 @@ async function syncUser(author, pkMessage, roomID) {
 	db.prepare("INSERT OR IGNORE INTO sim_proxy (user_id, proxy_owner_id, displayname) VALUES (?, ?, ?)").run(pkMessage.member.uuid, pkMessage.sender, author.username)
 	// Sync the member state
 	const content = await memberToStateContent(pkMessage, author)
-	const currentHash = registerUser._hashProfileContent(content, 0)
+	const currentHash = registerUser._hashProfileContent(content)
 	const existingHash = select("sim_member", "hashed_profile_content", {room_id: roomID, mxid}).safeIntegers().pluck().get()
 	// only do the actual sync if the hash has changed since we last looked
 	if (existingHash !== currentHash) {
@@ -142,19 +142,8 @@ async function syncUser(author, pkMessage, roomID) {
 }
 
 /** @returns {Promise<Ty.PkMessage>} */
-async function fetchMessage(messageID) {
-	// Their backend is weird. Sometimes it says "message not found" (code 20006) on the first try, so we make multiple attempts.
-	let attempts = 0
-	do {
-		var res = await fetch(`https://api.pluralkit.me/v2/messages/${messageID}`)
-		if (res.ok) return res.json()
-
-		// I think the backend needs some time to update.
-		await new Promise(resolve => setTimeout(resolve, 2000))
-	} while (++attempts < 3)
-
-	const errorMessage = await res.json()
-	throw new Error(`PK API returned an error after ${attempts} tries: ${JSON.stringify(errorMessage)}`)
+function fetchMessage(messageID) {
+	return fetch(`https://api.pluralkit.me/v2/messages/${messageID}`).then(res => res.json())
 }
 
 module.exports._memberToStateContent = memberToStateContent

d2m/actions/register-user.js

@@ -1,9 +1,7 @@
 // @ts-check
 
-const assert = require("assert").strict
-const {reg} = require("../../matrix/read-registration")
-const DiscordTypes = require("discord-api-types/v10")
-const mixin = require("@cloudrac3r/mixin-deep")
+const assert = require("assert")
+const reg = require("../../matrix/read-registration")
 
 const passthrough = require("../../passthrough")
 const {discord, sync, db, select} = passthrough
@@ -11,8 +9,6 @@ const {discord, sync, db, select} = passthrough
 const api = sync.require("../../matrix/api")
 /** @type {import("../../matrix/file")} */
 const file = sync.require("../../matrix/file")
-/** @type {import("../../discord/utils")} */
-const utils = sync.require("../../discord/utils")
 /** @type {import("../converters/user-to-mxid")} */
 const userToMxid = sync.require("../converters/user-to-mxid")
 /** @type {import("xxhash-wasm").XXHashAPI} */ // @ts-ignore
@@ -22,7 +18,7 @@ require("xxhash-wasm")().then(h => hasher = h)
 
 /**
  * A sim is an account that is being simulated by the bridge to copy events from the other side.
- * @param {DiscordTypes.APIUser} user
+ * @param {import("discord-api-types/v10").APIUser} user
  * @returns mxid
  */
 async function createSim(user) {
@@ -50,7 +46,7 @@ async function createSim(user) {
 /**
  * Ensure a sim is registered for the user.
  * If there is already a sim, use that one. If there isn't one yet, register a new sim.
- * @param {DiscordTypes.APIUser} user
+ * @param {import("discord-api-types/v10").APIUser} user
  * @returns {Promise<string>} mxid
  */
 async function ensureSim(user) {
@@ -66,7 +62,7 @@ async function ensureSim(user) {
 
 /**
  * Ensure a sim is registered for the user and is joined to the room.
- * @param {DiscordTypes.APIUser} user
+ * @param {import("discord-api-types/v10").APIUser} user
  * @param {string} roomID
  * @returns {Promise<string>} mxid
  */
@@ -96,8 +92,8 @@ async function ensureSimJoined(user, roomID) {
 }
 
 /**
- * @param {DiscordTypes.APIUser} user
- * @param {Omit<DiscordTypes.APIGuildMember, "user">} member
+ * @param {import("discord-api-types/v10").APIUser} user
+ * @param {Omit<import("discord-api-types/v10").APIGuildMember, "user">} member
  */
 async function memberToStateContent(user, member, guildID) {
 	let displayname = user.username
@@ -127,46 +123,8 @@ async function memberToStateContent(user, member, guildID) {
 	return content
 }
 
-/**
- * https://gitdab.com/cadence/out-of-your-element/issues/9
- * @param {DiscordTypes.APIUser} user
- * @param {Omit<DiscordTypes.APIGuildMember, "user">} member
- * @param {DiscordTypes.APIGuild} guild
- * @param {DiscordTypes.APIGuildChannel} channel
- * @returns {number} 0 to 100
- */
-function memberToPowerLevel(user, member, guild, channel) {
-	const permissions = utils.getPermissions(member.roles, guild.roles, user.id, channel.permission_overwrites)
-	/*
-	 * PL 100 = Administrator = People who can brick the room. RATIONALE:
-	 * 	- Administrator.
-	 * 	- Manage Webhooks: People who remove the webhook can break the room.
-	 * 	- Manage Guild: People who can manage guild can add bots.
-	 * 	- Manage Channels: People who can manage the channel can delete it.
-	 * (Setting sim users to PL 100 is safe because even though we can't demote the sims we can use code to make the sims demote themselves.)
-	 */
-	if (guild.owner_id === user.id || utils.hasSomePermissions(permissions, ["Administrator", "ManageWebhooks", "ManageGuild", "ManageChannels"])) return 100
-	/*
-	 * PL 50 = Moderator = People who can manage people and messages in many ways. RATIONALE:
-	 * 	- Manage Messages: Can moderate by pinning or deleting the conversation.
-	 * 	- Manage Nicknames: Can moderate by removing inappropriate nicknames.
-	 * 	- Manage Threads: Can moderate by deleting conversations.
-	 * 	- Kick Members & Ban Members: Can moderate by removing disruptive people.
-	 * 	- Mute Members & Deafen Members: Can moderate by silencing disruptive people in ways they can't undo.
-	 * 	- Moderate Members.
-	 */
-	if (utils.hasSomePermissions(permissions, ["ManageMessages", "ManageNicknames", "ManageThreads", "KickMembers", "BanMembers", "MuteMembers", "DeafenMembers", "ModerateMembers"])) return 50
-	/* PL 20 = Mention Everyone for technical reasons. */
-	if (utils.hasSomePermissions(permissions, ["MentionEveryone"])) return 20
-	return 0
-}
-
-/**
- * @param {any} content
- * @param {number} powerLevel
- */
-function _hashProfileContent(content, powerLevel) {
-	const unsignedHash = hasher.h64(`${content.displayname}\u0000${content.avatar_url}\u0000${powerLevel}`)
+function _hashProfileContent(content) {
+	const unsignedHash = hasher.h64(`${content.displayname}\u0000${content.avatar_url}`)
 	const signedHash = unsignedHash - 0x8000000000000000n // shifting down to signed 64-bit range
 	return signedHash
 }
@@ -175,67 +133,48 @@ function _hashProfileContent(content, powerLevel) {
  * Sync profile data for a sim user. This function follows the following process:
  * 1. Join the sim to the room if needed
  * 2. Make an object of what the new room member state content would be, including uploading the profile picture if it hasn't been done before
- * 3. Calculate the power level the user should get based on their Discord permissions
- * 4. Compare against the previously known state content, which is helpfully stored in the database
- * 5. If the state content or power level have changed, send them to Matrix and update them in the database for next time
- * @param {DiscordTypes.APIUser} user
- * @param {Omit<DiscordTypes.APIGuildMember, "user">} member
- * @param {DiscordTypes.APIGuildChannel} channel
- * @param {DiscordTypes.APIGuild} guild
- * @param {string} roomID
+ * 3. Compare against the previously known state content, which is helpfully stored in the database
+ * 4. If the state content has changed, send it to Matrix and update it in the database for next time
+ * @param {import("discord-api-types/v10").APIUser} user
+ * @param {Omit<import("discord-api-types/v10").APIGuildMember, "user">} member
  * @returns {Promise<string>} mxid of the updated sim
  */
-async function syncUser(user, member, channel, guild, roomID) {
+async function syncUser(user, member, guildID, roomID) {
 	const mxid = await ensureSimJoined(user, roomID)
-	const content = await memberToStateContent(user, member, guild.id)
-	const powerLevel = memberToPowerLevel(user, member, guild, channel)
-	const currentHash = _hashProfileContent(content, powerLevel)
+	const content = await memberToStateContent(user, member, guildID)
+	const currentHash = _hashProfileContent(content)
 	const existingHash = select("sim_member", "hashed_profile_content", {room_id: roomID, mxid}).safeIntegers().pluck().get()
 	// only do the actual sync if the hash has changed since we last looked
 	if (existingHash !== currentHash) {
-		// Update room member state
 		await api.sendState(roomID, "m.room.member", mxid, content, mxid)
-		// Update power levels
-		const powerLevelsStateContent = await api.getStateEvent(roomID, "m.room.power_levels", "")
-		const oldPowerLevel = powerLevelsStateContent.users?.[mxid] || 0
-		mixin(powerLevelsStateContent, {users: {[mxid]: powerLevel}})
-		if (powerLevel === 0) delete powerLevelsStateContent.users[mxid] // keep the event compact
-		const sendPowerLevelAs = powerLevel < oldPowerLevel ? mxid : undefined // bridge bot won't not have permission to demote equal power users, so do this action as themselves
-		await api.sendState(roomID, "m.room.power_levels", "", powerLevelsStateContent, sendPowerLevelAs)
-		// Update cached hash
 		db.prepare("UPDATE sim_member SET hashed_profile_content = ? WHERE room_id = ? AND mxid = ?").run(currentHash, roomID, mxid)
 	}
 	return mxid
 }
 
-/**
- * @param {string} roomID
- */
 async function syncAllUsersInRoom(roomID) {
 	const mxids = select("sim_member", "mxid", {room_id: roomID}).pluck().all()
 
 	const channelID = select("channel_room", "channel_id", {room_id: roomID}).pluck().get()
 	assert.ok(typeof channelID === "string")
 
-	/** @ts-ignore @type {DiscordTypes.APIGuildChannel} */
+	/** @ts-ignore @type {import("discord-api-types/v10").APIGuildChannel} */
 	const channel = discord.channels.get(channelID)
 	const guildID = channel.guild_id
 	assert.ok(typeof guildID === "string")
-	/** @ts-ignore @type {DiscordTypes.APIGuild} */
-	const guild = discord.guilds.get(guildID)
 
 	for (const mxid of mxids) {
 		const userID = select("sim", "user_id", {mxid}).pluck().get()
 		assert.ok(typeof userID === "string")
 
-		/** @ts-ignore @type {Required<DiscordTypes.APIGuildMember>} */
+		/** @ts-ignore @type {Required<import("discord-api-types/v10").APIGuildMember>} */
 		const member = await discord.snow.guild.getGuildMember(guildID, userID)
-		/** @ts-ignore @type {Required<DiscordTypes.APIUser>} user */
+		/** @ts-ignore @type {Required<import("discord-api-types/v10").APIUser>} user */
 		const user = member.user
 		assert.ok(user)
 
 		console.log(`[user sync] to matrix: ${user.username} in ${channel.name}`)
-		await syncUser(user, member, channel, guild, roomID)
+		await syncUser(user, member, guildID, roomID)
 	}
 }
 

d2m/actions/register-user.test.js

@@ -1,6 +1,6 @@
 const {_memberToStateContent} = require("./register-user")
 const {test} = require("supertape")
-const testData = require("../../../test/data")
+const testData = require("../../test/data")
 
 test("member2state: without member nick or avatar", async t => {
 	t.deepEqual(

d2m/actions/remove-reaction.js

@@ -23,7 +23,16 @@ async function removeSomeReactions(data) {
 	const eventIDForMessage = select("event_message", "event_id", {message_id: data.message_id, reaction_part: 0}).pluck().get()
 	if (!eventIDForMessage) return
 
-	const reactions = await api.getFullRelations(roomID, eventIDForMessage, "m.annotation")
+	/** @type {Ty.Event.Outer<Ty.Event.M_Reaction>[]} */
+	let reactions = []
+	/** @type {string | undefined} */
+	let nextBatch = undefined
+	do {
+		/** @type {Ty.Pagination<Ty.Event.Outer<Ty.Event.M_Reaction>>} */
+		const res = await api.getRelations(roomID, eventIDForMessage, {from: nextBatch}, "m.annotation")
+		reactions = reactions.concat(res.chunk)
+		nextBatch = res.next_batch
+	} while (nextBatch)
 
 	// Run the proper strategy and any strategy-specific database changes
 	const removals = await

d2m/actions/send-message.js

@@ -1,7 +1,6 @@
 // @ts-check
 
-const assert = require("assert").strict
-const DiscordTypes = require("discord-api-types/v10")
+const assert = require("assert")
 
 const passthrough = require("../../passthrough")
 const { discord, sync, db } = passthrough
@@ -19,28 +18,32 @@ const createRoom = sync.require("../actions/create-room")
 const dUtils = sync.require("../../discord/utils")
 
 /**
- * @param {DiscordTypes.GatewayMessageCreateDispatchData} message
- * @param {DiscordTypes.APIGuildChannel} channel
- * @param {DiscordTypes.APIGuild} guild
+ * @param {import("discord-api-types/v10").GatewayMessageCreateDispatchData} message
+ * @param {import("discord-api-types/v10").APIGuild} guild
  * @param {{speedbump_id: string, speedbump_webhook_id: string} | null} row data about the webhook which is proxying messages in this channel
  */
-async function sendMessage(message, channel, guild, row) {
+async function sendMessage(message, guild, row) {
 	const roomID = await createRoom.ensureRoom(message.channel_id)
 
 	let senderMxid = null
 	if (!dUtils.isWebhookMessage(message)) {
-		if (message.author.id === discord.application.id) {
-			// no need to sync the bot's own user
-		} else if (message.member) { // available on a gateway message create event
-			senderMxid = await registerUser.syncUser(message.author, message.member, channel, guild, roomID)
+		if (message.member) { // available on a gateway message create event
+			senderMxid = await registerUser.syncUser(message.author, message.member, message.guild_id, roomID)
 		} else { // well, good enough...
 			senderMxid = await registerUser.ensureSimJoined(message.author, roomID)
 		}
 	} else if (row && row.speedbump_webhook_id === message.webhook_id) {
 		// Handle the PluralKit public instance
 		if (row.speedbump_id === "466378653216014359") {
-			const pkMessage = await registerPkUser.fetchMessage(message.id)
-			senderMxid = await registerPkUser.syncUser(message.author, pkMessage, roomID)
+			const root = await registerPkUser.fetchMessage(message.id)
+			// Member is null if member was deleted. We just got this message, so member surely exists.
+			if (!root.member) {
+				const e = new Error("PK API did not return a member")
+				message["__pk_response__"] = root
+				console.error(root)
+				throw e
+			}
+			senderMxid = await registerPkUser.syncUser(message.author, root, roomID)
 		}
 	}
 

d2m/converters/edit-to-changes.js

@@ -3,55 +3,30 @@
 const assert = require("assert").strict
 
 const passthrough = require("../../passthrough")
-const {sync, select, from} = passthrough
+const {discord, sync, db, select, from} = passthrough
 /** @type {import("./message-to-event")} */
 const messageToEvent = sync.require("../converters/message-to-event")
-/** @type {import("../../m2d/converters/utils")} */
-const utils = sync.require("../../m2d/converters/utils")
-
-function eventCanBeEdited(ev) {
-	// Discord does not allow files, images, attachments, or videos to be edited.
-	if (ev.old.event_type === "m.room.message" && ev.old.event_subtype !== "m.text" && ev.old.event_subtype !== "m.emote" && ev.old.event_subtype !== "m.notice") {
-		return false
-	}
-	// Discord does not allow stickers to be edited.
-	if (ev.old.event_type === "m.sticker") {
-		return false
-	}
-	// Anything else is fair game.
-	return true
-}
+/** @type {import("../actions/register-user")} */
+const registerUser = sync.require("../actions/register-user")
+/** @type {import("../actions/create-room")} */
+const createRoom = sync.require("../actions/create-room")
 
 /**
  * @param {import("discord-api-types/v10").GatewayMessageCreateDispatchData} message
+ * IMPORTANT: This may not have all the normal fields! The API documentation doesn't provide possible types, just says it's all optional!
+ * Since I don't have a spec, I will have to capture some real traffic and add it as test cases... I hope they don't change anything later...
  * @param {import("discord-api-types/v10").APIGuild} guild
  * @param {import("../../matrix/api")} api simple-as-nails dependency injection for the matrix API
  */
 async function editToChanges(message, guild, api) {
-	// If it is a user edit, allow deleting old messages (e.g. they might have removed text from an image).
-	// If it is the system adding a generated embed to a message, don't delete old messages since the system only sends partial data.
-	// Since an update in August 2024, the system always provides the full data of message updates. I'll leave in the old code since it won't cause problems.
-
-	const isGeneratedEmbed = !("content" in message)
-
 	// Figure out what events we will be replacing
 
 	const roomID = select("channel_room", "room_id", {channel_id: message.channel_id}).pluck().get()
 	assert(roomID)
-	const oldEventRows = select("event_message", ["event_id", "event_type", "event_subtype", "part", "reaction_part"], {message_id: message.id}).all()
-
 	/** @type {string?} Null if we don't have a sender in the room, which will happen if it's a webhook's message. The bridge bot will do the edit instead. */
-	let senderMxid = null
-	if (message.author) {
-		senderMxid = from("sim").join("sim_member", "mxid").where({user_id: message.author.id, room_id: roomID}).pluck("mxid").get() || null
-	} else {
-		// Should be a system generated embed. We want the embed to be sent by the same user who sent the message, so that the messages get grouped in most clients.
-		const eventID = oldEventRows[0].event_id // a calling function should have already checked that there is at least one message to edit
-		const event = await api.getEvent(roomID, eventID)
-		if (utils.eventSenderIsFromDiscord(event.sender)) {
-			senderMxid = event.sender
-		}
-	}
+	const senderMxid = from("sim").join("sim_member", "mxid").where({user_id: message.author.id, room_id: roomID}).pluck("mxid").get() || null
+
+	const oldEventRows = select("event_message", ["event_id", "event_type", "event_subtype", "part", "reaction_part"], {message_id: message.id}).all()
 
 	// Figure out what we will be replacing them with
 
@@ -73,8 +48,7 @@ async function editToChanges(message, guild, api) {
 	let eventsToRedact = []
 	/** 3. Events that are present in the new version only, and should be sent as new, with references back to the context */
 	let eventsToSend = []
-	/**  4. Events that are matched and have definitely not changed, so they don't need to be edited or replaced at all. */
-	let unchangedEvents = []
+	//  4. Events that are matched and have definitely not changed, so they don't need to be edited or replaced at all. This is represented as nothing.
 
 	function shift() {
 		newFallbackContent.shift()
@@ -107,61 +81,48 @@ async function editToChanges(message, guild, api) {
 		shift()
 	}
 	// Anything remaining in oldEventRows is present in the old version only and should be redacted.
-	eventsToRedact = oldEventRows.map(e => ({old: e}))
-
-	// If this is a generated embed update, only allow the embeds to be updated, since the system only sends data about events. Ignore changes to other things.
-	if (isGeneratedEmbed) {
-		unchangedEvents.push(...eventsToRedact.filter(e => e.old.event_subtype !== "m.notice")) // Move them from eventsToRedact to unchangedEvents.
-		eventsToRedact = eventsToRedact.filter(e => e.old.event_subtype === "m.notice")
-	}
-
-	// Now, everything in eventsToSend and eventsToRedact is a real change, but everything in eventsToReplace might not have actually changed!
-	// (Example: a MESSAGE_UPDATE for a text+image message - Discord does not allow the image to be changed, but the text might have been.)
-	// So we'll remove entries from eventsToReplace that *definitely* cannot have changed. (This is category 4 mentioned above.) Everything remaining *may* have changed.
-	unchangedEvents.push(...eventsToReplace.filter(ev => !eventCanBeEdited(ev))) // Move them from eventsToRedact to unchangedEvents.
-	eventsToReplace = eventsToReplace.filter(eventCanBeEdited)
+	eventsToRedact = oldEventRows
 
 	// We want to maintain exactly one part = 0 and one reaction_part = 0 database row at all times.
-	// This would be disrupted if existing events that are (reaction_)part = 0 will be redacted.
-	// If that is the case, pick a different existing or newly sent event to be (reaction_)part = 0.
-	/** @type {({column: string, eventID: string, value?: number} | {column: string, nextEvent: true})[]} */
+	/** @type {({column: string, eventID: string} | {column: string, nextEvent: true})[]} */
 	const promotions = []
 	for (const column of ["part", "reaction_part"]) {
-		const candidatesForParts = unchangedEvents.concat(eventsToReplace)
 		// If no events with part = 0 exist (or will exist), we need to do some management.
-		if (!candidatesForParts.some(e => e.old[column] === 0)) {
-			// Try to find an existing event to promote. Bigger order is better.
-			if (candidatesForParts.length) {
-				const order = e => 2*+(e.event_type === "m.room.message") + 1*+(e.old.event_subtype === "m.text")
-				candidatesForParts.sort((a, b) => order(b) - order(a))
+		if (!eventsToReplace.some(e => e.old[column] === 0)) {
+			if (eventsToReplace.length) {
+				// We can choose an existing event to promote. Bigger order is better.
+				const order = e => 2*+(e.event_type === "m.room.message") + 1*+(e.event_subtype === "m.text")
+				eventsToReplace.sort((a, b) => order(b) - order(a))
 				if (column === "part") {
-					promotions.push({column, eventID: candidatesForParts[0].old.event_id}) // part should be the first one
-				} else if (eventsToSend.length) {
-					promotions.push({column, nextEvent: true}) // reaction_part should be the last one
+					promotions.push({column, eventID: eventsToReplace[0].old.event_id}) // part should be the first one
 				} else {
-					promotions.push({column, eventID: candidatesForParts[candidatesForParts.length - 1].old.event_id}) // reaction_part should be the last one
+					promotions.push({column, eventID: eventsToReplace[eventsToReplace.length - 1].old.event_id}) // reaction_part should be the last one
 				}
-			}
-			// Or, if there are no existing events to promote and new events will be sent, whatever gets sent will be the next part = 0.
-			else {
+			} else {
+				// No existing events to promote, but new events are being sent. Whatever gets sent will be the next part = 0.
 				promotions.push({column, nextEvent: true})
 			}
 		}
 	}
 
-	// If adding events, try to keep reactions attached to the bottom of the group (unless reactions have already been added)
-	if (eventsToSend.length && !promotions.length) {
-		const existingReaction = select("reaction", "message_id", {message_id: message.id}).pluck().get()
-		if (!existingReaction) {
-			const existingPartZero = unchangedEvents.concat(eventsToReplace).find(p => p.old.reaction_part === 0)
-			assert(existingPartZero) // will exist because a reaction_part=0 always exists and no events are being removed
-			promotions.push({column: "reaction_part", eventID: existingPartZero.old.event_id, value: 1}) // update the current reaction_part to 1
-			promotions.push({column: "reaction_part", nextEvent: true}) // the newly created event will have reaction_part = 0
+	// Now, everything in eventsToSend and eventsToRedact is a real change, but everything in eventsToReplace might not have actually changed!
+	// (Example: a MESSAGE_UPDATE for a text+image message - Discord does not allow the image to be changed, but the text might have been.)
+	// So we'll remove entries from eventsToReplace that *definitely* cannot have changed. (This is category 4 mentioned above.) Everything remaining *may* have changed.
+	eventsToReplace = eventsToReplace.filter(ev => {
+		// Discord does not allow files, images, attachments, or videos to be edited.
+		if (ev.old.event_type === "m.room.message" && ev.old.event_subtype !== "m.text" && ev.old.event_subtype !== "m.emote" && ev.old.event_subtype !== "m.notice") {
+			return false
 		}
+		// Discord does not allow stickers to be edited.
+		if (ev.old.event_type === "m.sticker") {
+			return false
 		}
+		// Anything else is fair game.
+		return true
+	})
 
 	// Removing unnecessary properties before returning
-	eventsToRedact = eventsToRedact.map(e => e.old.event_id)
+	eventsToRedact = eventsToRedact.map(e => e.event_id)
 	eventsToReplace = eventsToReplace.map(e => ({oldID: e.old.event_id, newContent: makeReplacementEventContent(e.old.event_id, e.newFallbackContent, e.newInnerContent)}))
 
 	return {roomID, eventsToReplace, eventsToRedact, eventsToSend, senderMxid, promotions}

d2m/converters/edit-to-changes.test.js

@@ -1,6 +1,6 @@
 const {test} = require("supertape")
 const {editToChanges} = require("./edit-to-changes")
-const data = require("../../../test/data")
+const data = require("../../test/data")
 const Ty = require("../../types")
 
 test("edit2changes: edit by webhook", async t => {
@@ -99,9 +99,9 @@ test("edit2changes: change file type", async t => {
 	t.deepEqual(eventsToRedact, ["$51f4yqHinwnSbPEQ9dCgoyy4qiIJSX0QYYVUnvwyTCJ"])
 	t.deepEqual(eventsToSend, [{
 		$type: "m.room.message",
-		body: "📝 Uploaded file: https://bridge.example.org/download/discordcdn/112760669178241024/1141501302497615912/gaze_into_my_dark_mind.txt (20 MB)",
+		body: "📝 Uploaded file: https://cdn.discordapp.com/attachments/112760669178241024/1141501302497615912/gaze_into_my_dark_mind.txt (20 MB)",
 		format: "org.matrix.custom.html",
-		formatted_body: "📝 Uploaded file: <a href=\"https://bridge.example.org/download/discordcdn/112760669178241024/1141501302497615912/gaze_into_my_dark_mind.txt\">gaze_into_my_dark_mind.txt</a> (20 MB)",
+		formatted_body: "📝 Uploaded file: <a href=\"https://cdn.discordapp.com/attachments/112760669178241024/1141501302497615912/gaze_into_my_dark_mind.txt\">gaze_into_my_dark_mind.txt</a> (20 MB)",
 		"m.mentions": {},
 		msgtype: "m.text"
 	}])
@@ -109,7 +109,7 @@ test("edit2changes: change file type", async t => {
 	t.deepEqual(promotions, [{column: "part", nextEvent: true}, {column: "reaction_part", nextEvent: true}])
 })
 
-test("edit2changes: add caption back to that image (due to it having a reaction, the reaction_part will not be moved)", async t => {
+test("edit2changes: add caption back to that image", async t => {
 	const {eventsToRedact, eventsToReplace, eventsToSend, promotions} = await editToChanges(data.message_update.added_caption_to_image, data.guild.general, {})
 	t.deepEqual(eventsToRedact, [])
 	t.deepEqual(eventsToSend, [{
@@ -235,93 +235,3 @@ test("edit2changes: promotes the text event when multiple rows have part = 1 (sh
 		}
 	])
 })
-
-test("edit2changes: generated embed", async t => {
-	let called = 0
-	const {senderMxid, eventsToRedact, eventsToReplace, eventsToSend, promotions} = await editToChanges(data.message_update.embed_generated_social_media_image, data.guild.general, {
-		async getEvent(roomID, eventID) {
-			called++
-			t.equal(roomID, "!kLRqKKUQXcibIMtOpl:cadence.moe")
-			t.equal(eventID, "$mPSzglkCu-6cZHbYro0RW2u5mHvbH9aXDjO5FCzosc0")
-			return {sender: "@_ooye_cadence:cadence.moe"}
-		}
-	})
-	t.deepEqual(eventsToRedact, [])
-	t.deepEqual(eventsToReplace, [])
-	t.deepEqual(eventsToSend, [{
-		$type: "m.room.message",
-		msgtype: "m.notice",
-		body: "| via hthrflwrs on cohost"
-			+ "\n| \n| ## This post nerdsniped me, so here's some RULES FOR REAL-LIFE BALATRO https://cohost.org/jkap/post/4794219-empty"
-			+ "\n| \n| 1v1 physical card game. Each player gets one standard deck of cards with a different backing to differentiate. Every turn proceeds as follows:"
-			+ "\n| \n|  * Both players draw eight cards"
-			+ "\n|  * Both players may choose up to eight cards to discard, then draw that number of cards to put back in their hand"
-			+ "\n|  * Both players present their best five-or-less-card pok...",
-		format: "org.matrix.custom.html",
-		formatted_body: `<blockquote><p><sub>hthrflwrs on cohost</sub>`
-			+ `</p><p><strong><a href="https://cohost.org/jkap/post/4794219-empty">This post nerdsniped me, so here's some RULES FOR REAL-LIFE BALATRO</a></strong>`
-			+ `</p><p>1v1 physical card game. Each player gets one standard deck of cards with a different backing to differentiate. Every turn proceeds as follows:`
-			+ `<br><br><ul><li>Both players draw eight cards`
-			+ `</li><li>Both players may choose up to eight cards to discard, then draw that number of cards to put back in their hand`
-			+ `</li><li>Both players present their best five-or-less-card pok...</li></ul></p></blockquote>`,
-		"m.mentions": {}
-	}])
-	t.deepEqual(promotions, [{
-		"column": "reaction_part",
-		"eventID": "$mPSzglkCu-6cZHbYro0RW2u5mHvbH9aXDjO5FCzosc0",
-		"value": 1,
-	}, {
-		"column": "reaction_part",
-		"nextEvent": true,
-	}])
-	t.equal(senderMxid, "@_ooye_cadence:cadence.moe")
-	t.equal(called, 1)
-})
-
-test("edit2changes: generated embed on a reply", async t => {
-	const {senderMxid, eventsToRedact, eventsToReplace, eventsToSend, promotions} = await editToChanges(data.message_update.embed_generated_on_reply, data.guild.general, {})
-	t.deepEqual(eventsToRedact, [])
-	t.deepEqual(eventsToReplace, [{
-		oldID: "$UTqiL3Zj3FC4qldxRLggN1fhygpKl8sZ7XGY5f9MNbF",
-		newContent: {
-			$type: "m.room.message",
-			// Unfortunately the edited message doesn't include the message_reference field. Fine. Whatever. It looks normal if you're using a good client.
-			body: "> a Discord user: [Replied-to message content wasn't provided by Discord]"
-				+ "\n\n* https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$aLVZyiC3HlOu-prCSIaXlQl68I8leUdnPFiCwkgn6qM",
-			format: "org.matrix.custom.html",
-			formatted_body: "<mx-reply><blockquote><a href=\"https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$aLVZyiC3HlOu-prCSIaXlQl68I8leUdnPFiCwkgn6qM\">In reply to</a> a Discord user<br>[Replied-to message content wasn't provided by Discord]</blockquote></mx-reply>* <a href=\"https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$aLVZyiC3HlOu-prCSIaXlQl68I8leUdnPFiCwkgn6qM\">https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$aLVZyiC3HlOu-prCSIaXlQl68I8leUdnPFiCwkgn6qM</a>",
-			"m.mentions": {},
-			"m.new_content": {
-				body: "https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$aLVZyiC3HlOu-prCSIaXlQl68I8leUdnPFiCwkgn6qM",
-				format: "org.matrix.custom.html",
-				formatted_body: "<a href=\"https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$aLVZyiC3HlOu-prCSIaXlQl68I8leUdnPFiCwkgn6qM\">https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$aLVZyiC3HlOu-prCSIaXlQl68I8leUdnPFiCwkgn6qM</a>",
-				"m.mentions": {},
-				msgtype: "m.text",
-			},
-			"m.relates_to": {
-				event_id: "$UTqiL3Zj3FC4qldxRLggN1fhygpKl8sZ7XGY5f9MNbF",
-				rel_type: "m.replace",
-			},
-			msgtype: "m.text",
-		},
-	}])
-	t.deepEqual(eventsToSend, [{
-		$type: "m.room.message",
-		msgtype: "m.notice",
-		body: "| ## Matrix - Decentralised and secure communication https://matrix.to/"
-			+ "\n| \n| You're invited to talk on Matrix. If you don't already have a client this link will help you pick one, and join the conversation. If you already have one, this link will help you join the conversation",
-		format: "org.matrix.custom.html",
-		formatted_body: `<blockquote><p><strong><a href="https://matrix.to/">Matrix - Decentralised and secure communication</a></strong>`
-			+ `</p><p>You're invited to talk on Matrix. If you don't already have a client this link will help you pick one, and join the conversation. If you already have one, this link will help you join the conversation</p></blockquote>`,
-		"m.mentions": {}
-	}])
-	t.deepEqual(promotions, [{
-		"column": "reaction_part",
-		"eventID": "$UTqiL3Zj3FC4qldxRLggN1fhygpKl8sZ7XGY5f9MNbF",
-		"value": 1,
-	}, {
-		"column": "reaction_part",
-		"nextEvent": true,
-	}])
-	t.equal(senderMxid, "@_ooye_cadence:cadence.moe")
-})

d2m/converters/emoji-to-key.test.js

@@ -2,7 +2,7 @@
 
 const {test} = require("supertape")
 const {emojiToKey} = require("./emoji-to-key")
-const data = require("../../../test/data")
+const data = require("../../test/data")
 const Ty = require("../../types")
 
 test("emoji2key: unicode emoji works", async t => {

d2m/converters/lottie.js

@@ -2,7 +2,7 @@
 
 const assert = require("assert")
 const stream = require("stream")
-const {PNG} = require("@cloudrac3r/pngjs")
+const {PNG} = require("pngjs")
 
 const SIZE = 160 // Discord's display size on 1x displays is 160
 

d2m/converters/message-to-event.embeds.test.js

@@ -0,0 +1,143 @@
+const {test} = require("supertape")
+const {messageToEvent} = require("./message-to-event")
+const data = require("../../test/data")
+const Ty = require("../../types")
+
+test("message2event embeds: nothing but a field", async t => {
+	const events = await messageToEvent(data.message_with_embeds.nothing_but_a_field, data.guild.general, {})
+	t.deepEqual(events, [{
+		$type: "m.room.message",
+		"m.mentions": {},
+		msgtype: "m.notice",
+		body: "| ### Amanda 🎵#2192 :online:"
+			+ "\n| willow tree, branch 0"
+			+ "\n| **❯ Uptime:**\n| 3m 55s\n| **❯ Memory:**\n| 64.45MB",
+		format: "org.matrix.custom.html",
+		formatted_body: '<blockquote><p><strong>Amanda 🎵#2192 <img data-mx-emoticon height=\"32\" src=\"mxc://cadence.moe/LCEqjStXCxvRQccEkuslXEyZ\" title=\":online:\" alt=\":online:\">'
+			+ '<br>willow tree, branch 0</strong>'
+			+ '<br><strong>❯ Uptime:</strong><br>3m 55s'
+			+ '<br><strong>❯ Memory:</strong><br>64.45MB</p></blockquote>'
+	}])
+})
+
+test("message2event embeds: reply with just an embed", async t => {
+	const events = await messageToEvent(data.message_with_embeds.reply_with_only_embed, data.guild.general, {})
+	t.deepEqual(events, [{
+		$type: "m.room.message",
+		msgtype: "m.notice",
+		"m.mentions": {},
+		body: "| ## ⏺️ dynastic (@dynastic) https://twitter.com/i/user/719631291747078145"
+			+ "\n| \n| ## https://twitter.com/i/status/1707484191963648161"
+			+ "\n| \n| does anyone know where to find that one video of the really mysterious yam-like object being held up to a bunch of random objects, like clocks, and they have unexplained impossible reactions to it?"
+			+ "\n| \n| ### Retweets"
+			+ "\n| 119"
+			+ "\n| \n| ### Likes"
+			+ "\n| 5581"
+			+ "\n| — Twitter",
+		format: "org.matrix.custom.html",
+		formatted_body: '<blockquote><p><strong><a href="https://twitter.com/i/user/719631291747078145">⏺️ dynastic (@dynastic)</a></strong></p>'
+			+ '<p><strong><a href="https://twitter.com/i/status/1707484191963648161">https://twitter.com/i/status/1707484191963648161</a></strong>'
+			+ '</p><p>does anyone know where to find that one video of the really mysterious yam-like object being held up to a bunch of random objects, like clocks, and they have unexplained impossible reactions to it?'
+			+ '</p><p><strong>Retweets</strong><br>119</p><p><strong>Likes</strong><br>5581</p>— Twitter</blockquote>'
+	}])
+})
+
+test("message2event embeds: image embed and attachment", async t => {
+	const events = await messageToEvent(data.message_with_embeds.image_embed_and_attachment, data.guild.general, {}, {
+		api: {
+			async getJoinedMembers(roomID) {
+				return {joined: []}
+			}
+		}
+	})
+	t.deepEqual(events, [{
+		$type: "m.room.message",
+		msgtype: "m.text",
+		body: "https://tootsuite.net/Warp-Gate2.gif\ntanget: @ monster spawner",
+		format: "org.matrix.custom.html",
+		formatted_body: '<a href="https://tootsuite.net/Warp-Gate2.gif">https://tootsuite.net/Warp-Gate2.gif</a><br>tanget: @ monster spawner',
+		"m.mentions": {}
+	}, {
+		$type: "m.room.message",
+		msgtype: "m.image",
+		url: "mxc://cadence.moe/zAXdQriaJuLZohDDmacwWWDR",
+		body: "Screenshot_20231001_034036.jpg",
+		external_url: "https://cdn.discordapp.com/attachments/176333891320283136/1157854643037163610/Screenshot_20231001_034036.jpg?ex=651a1faa&is=6518ce2a&hm=eb5ca80a3fa7add8765bf404aea2028a28a2341e4a62435986bcdcf058da82f3&",
+		filename: "Screenshot_20231001_034036.jpg",
+		info: {
+			h: 1170,
+			w: 1080,
+			size: 51981,
+			mimetype: "image/jpeg"
+		},
+		"m.mentions": {}
+	}])
+})
+
+test("message2event embeds: blockquote in embed", async t => {
+	let called = 0
+	const events = await messageToEvent(data.message_with_embeds.blockquote_in_embed, data.guild.general, {}, {
+		api: {
+			async getStateEvent(roomID, type, key) {
+				called++
+				t.equal(roomID, "!qzDBLKlildpzrrOnFZ:cadence.moe")
+				t.equal(type, "m.room.power_levels")
+				t.equal(key, "")
+				return {
+					users: {
+						"@_ooye_bot:cadence.moe": 100
+					}
+				}
+			},
+			async getJoinedMembers(roomID) {
+				called++
+				t.equal(roomID, "!qzDBLKlildpzrrOnFZ:cadence.moe")
+				return {
+					joined: {
+						"@_ooye_bot:cadence.moe": {display_name: null, avatar_url: null},
+						"@user:example.invalid": {display_name: null, avatar_url: null}
+					}
+				}
+			}
+		}
+	})
+	t.deepEqual(events, [{
+		$type: "m.room.message",
+		msgtype: "m.text",
+		body: ":emoji: **4 |** #wonderland",
+		format: "org.matrix.custom.html",
+		formatted_body: `<img data-mx-emoticon height=\"32\" src=\"mxc://cadence.moe/mwZaCtRGAQQyOItagDeCocEO\" title=\":emoji:\" alt=\":emoji:\"> <strong>4 |</strong> <a href=\"https://matrix.to/#/!qzDBLKlildpzrrOnFZ:cadence.moe?via=cadence.moe&via=example.invalid\">#wonderland</a>`,
+		"m.mentions": {}
+	}, {
+		$type: "m.room.message",
+		msgtype: "m.notice",
+		body: "| ## ⏺️ minimus https://matrix.to/#/!qzDBLKlildpzrrOnFZ:cadence.moe/$dVCLyj6kxb3DaAWDtjcv2kdSny8JMMHdDhCMz8mDxVo?via=cadence.moe&via=example.invalid\n| \n| reply draft\n| > The following is a message composed via consensus of the Stinker Council.\n| > \n| > For those who are not currently aware of our existence, we represent the organization known as Wonderland. Our previous mission centered around the assortment and study of puzzling objects, entities and other assorted phenomena. This mission was the focus of our organization for more than 28 years.\n| > \n| > Due to circumstances outside of our control, this directive has now changed. Our new mission will be the extermination of the stinker race.\n| > \n| > There will be no further communication.\n| \n| [Go to Message](https://matrix.to/#/!qzDBLKlildpzrrOnFZ:cadence.moe/$dVCLyj6kxb3DaAWDtjcv2kdSny8JMMHdDhCMz8mDxVo?via=cadence.moe&via=example.invalid)",
+		format: "org.matrix.custom.html",
+		formatted_body: "<blockquote><p><strong><a href=\"https://matrix.to/#/!qzDBLKlildpzrrOnFZ:cadence.moe/$dVCLyj6kxb3DaAWDtjcv2kdSny8JMMHdDhCMz8mDxVo?via=cadence.moe&amp;via=example.invalid\">⏺️ minimus</a></strong></p><p>reply draft<br><blockquote>The following is a message composed via consensus of the Stinker Council.<br><br>For those who are not currently aware of our existence, we represent the organization known as Wonderland. Our previous mission centered around the assortment and study of puzzling objects, entities and other assorted phenomena. This mission was the focus of our organization for more than 28 years.<br><br>Due to circumstances outside of our control, this directive has now changed. Our new mission will be the extermination of the stinker race.<br><br>There will be no further communication.</blockquote></p><p><a href=\"https://matrix.to/#/!qzDBLKlildpzrrOnFZ:cadence.moe/$dVCLyj6kxb3DaAWDtjcv2kdSny8JMMHdDhCMz8mDxVo?via=cadence.moe&amp;via=example.invalid\">Go to Message</a></p></blockquote>",
+		"m.mentions": {}
+	}])
+	t.equal(called, 2, "should call getStateEvent and getJoinedMembers once each")
+})
+
+test("message2event embeds: crazy html is all escaped", async t => {
+	const events = await messageToEvent(data.message_with_embeds.escaping_crazy_html_tags, data.guild.general)
+	t.deepEqual(events, [{
+		$type: "m.room.message",
+		msgtype: "m.notice",
+		body: "| ## ⏺️ <strong>[<span data-mx-color='#123456'>Hey<script>](https://a.co/&amp;) https://a.co/&amp;<script>"
+			+ "\n| \n| ## <strong>[<span data-mx-color='#123456'>Hey<script>](https://a.co/&amp;) https://a.co/&amp;<script>"
+			+ "\n| \n| <strong>[<span data-mx-color='#123456'>Hey<script>](https://a.co/&amp;)"
+			+ "\n| \n| ### <strong>[<span data-mx-color='#123456'>Hey<script>](https://a.co/&amp;)"
+			+ "\n| <strong>[<span data-mx-color='#123456'>Hey<script>](https://a.co/&amp;)"
+			+ "\n| — <strong>[<span data-mx-color='#123456'>Hey<script>](https://a.co/&amp;)",
+		format: "org.matrix.custom.html",
+		formatted_body: `<blockquote>`
+			+ `<p><strong><a href="https://a.co/&amp;amp;&lt;script&gt;">⏺️ &lt;strong&gt;[&lt;span data-mx-color=&#39;#123456&#39;&gt;Hey&lt;script&gt;](https://a.co/&amp;amp;)</a></strong></p>`
+			+ `<p><strong><a href=\"https://a.co/&amp;amp;&lt;script&gt;">&lt;strong&gt;[&lt;span data-mx-color='#123456'&gt;Hey&lt;script&gt;](<a href="https://a.co/&amp;amp">https://a.co/&amp;amp</a>;)</a></strong></p>`
+			+ `<p>&lt;strong&gt;<a href="https://a.co/&amp;amp;">&lt;span data-mx-color='#123456'&gt;Hey&lt;script&gt;</a></p>`
+			+ `<p><strong>&lt;strong&gt;[&lt;span data-mx-color='#123456'&gt;Hey&lt;script&gt;](<a href=\"https://a.co/&amp;amp\">https://a.co/&amp;amp</a>;)</strong>`
+			+ `<br>&lt;strong&gt;<a href="https://a.co/&amp;amp;">&lt;span data-mx-color='#123456'&gt;Hey&lt;script&gt;</a></p>`
+			+ `— &lt;strong&gt;[&lt;span data-mx-color=&#39;#123456&#39;&gt;Hey&lt;script&gt;](https://a.co/&amp;amp;)</blockquote>`,
+		"m.mentions": {}
+	}])
+})

d2m/converters/message-to-event.js

@@ -1,10 +1,10 @@
 // @ts-check
 
 const assert = require("assert").strict
-const markdown = require("@cloudrac3r/discord-markdown")
+const markdown = require("discord-markdown")
 const pb = require("prettier-bytes")
 const DiscordTypes = require("discord-api-types/v10")
-const {tag} = require("@cloudrac3r/html-template-tag")
+const {tag} = require("html-template-tag")
 
 const passthrough = require("../../passthrough")
 const {sync, db, discord, select, from} = passthrough
@@ -18,7 +18,7 @@ const lottie = sync.require("../actions/lottie")
 const mxUtils = sync.require("../../m2d/converters/utils")
 /** @type {import("../../discord/utils")} */
 const dUtils = sync.require("../../discord/utils")
-const {reg} = require("../../matrix/read-registration")
+const reg = require("../../matrix/read-registration")
 
 const userRegex = reg.namespaces.users.map(u => new RegExp(u.regex))
 
@@ -32,10 +32,7 @@ function getDiscordParseCallbacks(message, guild, useHTML) {
 		/** @param {{id: string, type: "discordUser"}} node */
 		user: node => {
 			const mxid = select("sim", "mxid", {user_id: node.id}).pluck().get()
-			const interaction = message.interaction_metadata || message.interaction
-			const username = message.mentions.find(ment => ment.id === node.id)?.username
-				|| (interaction?.user.id === node.id ? interaction.user.username : null)
-				|| node.id
+			const username = message.mentions.find(ment => ment.id === node.id)?.username || node.id
 			if (mxid && useHTML) {
 				return `<a href="https://matrix.to/#/${mxid}">@${username}</a>`
 			} else {
@@ -61,7 +58,7 @@ function getDiscordParseCallbacks(message, guild, useHTML) {
 		emoji: node => {
 			if (useHTML) {
 				const mxc = select("emoji", "mxc_url", {emoji_id: node.id}).pluck().get()
-				assert(mxc, `Emoji consistency assertion failed for ${node.name}:${node.id}`) // All emojis should have been added ahead of time in the messageToEvent function.
+				assert(mxc) // All emojis should have been added ahead of time in the messageToEvent function.
 				return `<img data-mx-emoticon height="32" src="${mxc}" title=":${node.name}:" alt=":${node.name}:">`
 			} else {
 				return `:${node.name}:`
@@ -103,7 +100,6 @@ const embedTitleParser = markdown.markdownEngine.parserFor({
  * @param {DiscordTypes.APIAttachment} attachment
  */
 async function attachmentToEvent(mentions, attachment) {
-	const external_url = dUtils.getPublicUrlForCdn(attachment.url)
 	const emoji =
 		attachment.content_type?.startsWith("image/jp") ? "📸"
 		: attachment.content_type?.startsWith("image/") ? "🖼️"
@@ -117,9 +113,9 @@ async function attachmentToEvent(mentions, attachment) {
 			$type: "m.room.message",
 			"m.mentions": mentions,
 			msgtype: "m.text",
-			body: `${emoji} Uploaded SPOILER file: ${external_url} (${pb(attachment.size)})`,
+			body: `${emoji} Uploaded SPOILER file: ${attachment.url} (${pb(attachment.size)})`,
 			format: "org.matrix.custom.html",
-			formatted_body: `<blockquote>${emoji} Uploaded SPOILER file: <a href="${external_url}">${external_url}</a> (${pb(attachment.size)})</blockquote>`
+			formatted_body: `<blockquote>${emoji} Uploaded SPOILER file: <a href="${attachment.url}">${attachment.url}</a> (${pb(attachment.size)})</blockquote>`
 		}
 	}
 	// for large files, always link them instead of uploading so I don't use up all the space in the content repo
@@ -128,9 +124,9 @@ async function attachmentToEvent(mentions, attachment) {
 			$type: "m.room.message",
 			"m.mentions": mentions,
 			msgtype: "m.text",
-			body: `${emoji} Uploaded file: ${external_url} (${pb(attachment.size)})`,
+			body: `${emoji} Uploaded file: ${attachment.url} (${pb(attachment.size)})`,
 			format: "org.matrix.custom.html",
-			formatted_body: `${emoji} Uploaded file: <a href="${external_url}">${attachment.filename}</a> (${pb(attachment.size)})`
+			formatted_body: `${emoji} Uploaded file: <a href="${attachment.url}">${attachment.filename}</a> (${pb(attachment.size)})`
 		}
 	} else if (attachment.content_type?.startsWith("image/") && attachment.width && attachment.height) {
 		return {
@@ -138,7 +134,7 @@ async function attachmentToEvent(mentions, attachment) {
 			"m.mentions": mentions,
 			msgtype: "m.image",
 			url: await file.uploadDiscordFileToMxc(attachment.url),
-			external_url,
+			external_url: attachment.url,
 			body: attachment.description || attachment.filename,
 			filename: attachment.filename,
 			info: {
@@ -154,7 +150,7 @@ async function attachmentToEvent(mentions, attachment) {
 			"m.mentions": mentions,
 			msgtype: "m.video",
 			url: await file.uploadDiscordFileToMxc(attachment.url),
-			external_url,
+			external_url: attachment.url,
 			body: attachment.description || attachment.filename,
 			filename: attachment.filename,
 			info: {
@@ -170,7 +166,7 @@ async function attachmentToEvent(mentions, attachment) {
 			"m.mentions": mentions,
 			msgtype: "m.audio",
 			url: await file.uploadDiscordFileToMxc(attachment.url),
-			external_url,
+			external_url: attachment.url,
 			body: attachment.description || attachment.filename,
 			filename: attachment.filename,
 			info: {
@@ -185,7 +181,7 @@ async function attachmentToEvent(mentions, attachment) {
 			"m.mentions": mentions,
 			msgtype: "m.file",
 			url: await file.uploadDiscordFileToMxc(attachment.url),
-			external_url,
+			external_url: attachment.url,
 			body: attachment.description || attachment.filename,
 			filename: attachment.filename,
 			info: {
@@ -197,12 +193,11 @@ async function attachmentToEvent(mentions, attachment) {
 }
 
 /**
- * @param {DiscordTypes.APIMessage} message
- * @param {DiscordTypes.APIGuild} guild
- * @param {{includeReplyFallback?: boolean, includeEditFallbackStar?: boolean, alwaysReturnFormattedBody?: boolean}} options default values:
+ * @param {import("discord-api-types/v10").APIMessage} message
+ * @param {import("discord-api-types/v10").APIGuild} guild
+ * @param {{includeReplyFallback?: boolean, includeEditFallbackStar?: boolean}} options default values:
  * - includeReplyFallback: true
  * - includeEditFallbackStar: false
- * - alwaysReturnFormattedBody: false - formatted_body will be skipped if it is the same as body because the message is plaintext. if you want the formatted_body to be returned anyway, for example to merge it with another message, then set this to true.
  * @param {{api: import("../../matrix/api")}} di simple-as-nails dependency injection for the matrix API
  */
 async function messageToEvent(message, guild, options = {}, di) {
@@ -234,16 +229,6 @@ async function messageToEvent(message, guild, options = {}, di) {
 		}]
 	}
 
-	const interaction = message.interaction_metadata || message.interaction
-	if (message.type === DiscordTypes.MessageType.ChatInputCommand && interaction && "name" in interaction) {
-		// Commands are sent by the responding bot. Need to attach the metadata of the person using the command at the top.
-		let content = message.content
-		if (content) content = `\n${content}`
-		else if ((message.flags || 0) & DiscordTypes.MessageFlags.Loading) content = " — interaction loading..."
-		content = `> ↪️ <@${interaction.user.id}> used \`/${interaction.name}\`${content}`
-		message = {...message, content} // editToChanges reuses the object so we can't mutate it. have to clone it
-	}
-
 	/**
 	   @type {{room?: boolean, user_ids?: string[]}}
 		We should consider the following scenarios for mentions:
@@ -264,8 +249,6 @@ async function messageToEvent(message, guild, options = {}, di) {
 	let repliedToEventRow = null
 	let repliedToEventSenderMxid = null
 
-	if (message.mention_everyone) mentions.room = true
-
 	function addMention(mxid) {
 		if (!mentions.user_ids) mentions.user_ids = []
 		if (!mentions.user_ids.includes(mxid)) mentions.user_ids.push(mxid)
@@ -353,13 +336,8 @@ async function messageToEvent(message, guild, options = {}, di) {
 					result = `https://matrix.to/#/${roomID}/${eventID}?${via}`
 				} else {
 					const ts = dUtils.snowflakeToTimestampExact(messageID)
-					try {
 					const {event_id} = await di.api.getEventForTimestamp(roomID, ts)
 					result = `https://matrix.to/#/${roomID}/${event_id}?${via}`
-					} catch (e) {
-						// M_NOT_FOUND: Unable to find event from <ts> in direction Direction.FORWARDS
-						result = `[unknown event, timestamp resolution failed, in room: https://matrix.to/#/${roomID}?${via}]`
-					}
 				}
 			} else {
 				result = `${match[0]} [event is from another server]`
@@ -371,13 +349,6 @@ async function messageToEvent(message, guild, options = {}, di) {
 		return content
 	}
 
-	/**
-	 * Translate Discord attachment links into links that go via the bridge, so they last forever.
-	 */
-	function transformAttachmentLinks(content) {
-		return content.replace(/https:\/\/(cdn|media)\.discordapp\.(?:com|net)\/attachments\/([0-9]+)\/([0-9]+)\/([-A-Za-z0-9_.,]+)/g, url => dUtils.getPublicUrlForCdn(url))
-	}
-
 	/**
 	 * Translate links and emojis and mentions and stuff. Give back the text and HTML so they can be combined into bigger events.
 	 * @param {string} content Partial or complete Discord message content
@@ -386,12 +357,11 @@ async function messageToEvent(message, guild, options = {}, di) {
 	 * @param {any} customHtmlOutput
 	 */
 	async function transformContent(content, customOptions = {}, customParser = null, customHtmlOutput = null) {
-		content = transformAttachmentLinks(content)
 		content = await transformContentMessageLinks(content)
 
 		// Handling emojis that we don't know about. The emoji has to be present in the DB for it to be picked up in the emoji markdown converter.
 		// So we scan the message ahead of time for all its emojis and ensure they are in the DB.
-		const emojiMatches = [...content.matchAll(/<(a?):([^:>]{1,64}):([0-9]+)>/g)]
+		const emojiMatches = [...content.matchAll(/<(a?):([^:>]{2,64}):([0-9]+)>/g)]
 		await Promise.all(emojiMatches.map(match => {
 			const id = match[3]
 			const name = match[2]
@@ -424,18 +394,13 @@ async function messageToEvent(message, guild, options = {}, di) {
 			discordOnly: true,
 			escapeHTML: false,
 			...customOptions
-		})
+		}, null, null)
 
 		return {body, html}
 	}
 
-	/**
-	 * After converting Discord content to Matrix plaintext and HTML content, post-process the bodies and push the resulting text event
-	 * @param {string} body matrix event plaintext body
-	 * @param {string} html matrix event HTML body
-	 * @param {string} msgtype matrix event msgtype (maybe m.text or m.notice)
-	 */
-	async function addTextEvent(body, html, msgtype) {
+	// FIXME: What was the scanMentions parameter supposed to activate? It's unused.
+	async function addTextEvent(body, html, msgtype, {scanMentions}) {
 		// Star * prefix for fallback edits
 		if (options.includeEditFallbackStar) {
 			body = "* " + body
@@ -443,7 +408,7 @@ async function messageToEvent(message, guild, options = {}, di) {
 		}
 
 		const flags = message.flags || 0
-		if (flags & DiscordTypes.MessageFlags.IsCrosspost) {
+		if (flags & 2) {
 			body = `[🔀 ${message.author.username}]\n` + body
 			html = `🔀 <strong>${message.author.username}</strong><br>` + html
 		}
@@ -463,23 +428,21 @@ async function messageToEvent(message, guild, options = {}, di) {
 				repliedToUserHtml = repliedToDisplayName
 			}
 			let repliedToContent = message.referenced_message?.content
-			if (repliedToContent?.match(/^(-# )?> (-# )?<:L1:/)) {
+			if (repliedToContent?.startsWith("> <:L1:")) {
 				// If the Discord user is replying to a Matrix user's reply, the fallback is going to contain the emojis and stuff from the bridged rep of the Matrix user's reply quote.
 				// Need to remove that previous reply rep from this fallback body. The fallbody body should only contain the Matrix user's actual message.
-				//                                            ┌──────A─────┐       A reply rep starting with >quote or -#smalltext >quote. Match until the end of the line.
-				//                                            ┆            ┆┌─B─┐  There may be up to 2 reply rep lines in a row if it was created in the old format. Match all lines.
-				repliedToContent = repliedToContent.replace(/^((-# )?> .*\n){1,2}/, "")
+				repliedToContent = repliedToContent.split("\n").slice(2).join("\n")
 			}
 			if (repliedToContent == "") repliedToContent = "[Media]"
 			else if (!repliedToContent) repliedToContent = "[Replied-to message content wasn't provided by Discord]"
 			const repliedToHtml = markdown.toHTML(repliedToContent, {
 				discordCallback: getDiscordParseCallbacks(message, guild, true)
-			})
+			}, null, null)
 			const repliedToBody = markdown.toHTML(repliedToContent, {
 				discordCallback: getDiscordParseCallbacks(message, guild, false),
 				discordOnly: true,
 				escapeHTML: false,
-			})
+			}, null, null)
 			html = `<mx-reply><blockquote><a href="https://matrix.to/#/${repliedToEventRow.room_id}/${repliedToEventRow.event_id}">In reply to</a> ${repliedToUserHtml}`
 				+ `<br>${repliedToHtml}</blockquote></mx-reply>`
 				+ html
@@ -497,7 +460,7 @@ async function messageToEvent(message, guild, options = {}, di) {
 
 		const isPlaintext = body === html
 
-		if (!isPlaintext || options.alwaysReturnFormattedBody) {
+		if (!isPlaintext) {
 			Object.assign(newTextMessageEvent, {
 				format: "org.matrix.custom.html",
 				formatted_body: html
@@ -515,62 +478,9 @@ async function messageToEvent(message, guild, options = {}, di) {
 		message.content = "changed the channel name to **" + message.content + "**"
 	}
 
-	// Forwarded content appears first
-	if (message.message_reference?.type === DiscordTypes.MessageReferenceType.Forward && message.message_snapshots?.length) {
-		// Forwarded notice
-		const eventID = select("event_message", "event_id", {message_id: message.message_reference.message_id}).pluck().get()
-		const room = select("channel_room", ["room_id", "name", "nick"], {channel_id: message.message_reference.channel_id}).get()
-		const forwardedNotice = new mxUtils.MatrixStringBuilder()
-		if (room) {
-			const roomName = room && (room.nick || room.name)
-			const via = await getViaServersMemo(room.room_id)
-			if (eventID) {
-				forwardedNotice.addLine(
-					`[🔀 Forwarded from #${roomName}]`,
-					tag`🔀 <em>Forwarded from <a href="https://matrix.to/#/${room.room_id}/${eventID}?${via}">${roomName}</a></em>`
-				)
-			} else {
-				forwardedNotice.addLine(
-					`[🔀 Forwarded from #${roomName}]`,
-					tag`🔀 <em>Forwarded from <a href="https://matrix.to/#/${room.room_id}?${via}">${roomName}</a></em>`
-				)
-			}
-		} else {
-			forwardedNotice.addLine(
-				`[🔀 Forwarded message]`,
-				tag`🔀 <em>Forwarded message</em>`
-			)
-		}
-
-		// Forwarded content
-		// @ts-ignore
-		const forwardedEvents = await messageToEvent(message.message_snapshots[0].message, guild, {includeReplyFallback: false, includeEditFallbackStar: false, alwaysReturnFormattedBody: true}, di)
-
-		// Indent
-		for (const event of forwardedEvents) {
-			if (["m.text", "m.notice"].includes(event.msgtype)) {
-				event.msgtype = "m.notice"
-				event.body = event.body.split("\n").map(l => "» " + l).join("\n")
-				event.formatted_body = `<blockquote>${event.formatted_body}</blockquote>`
-			}
-		}
-
-		// Try to merge the forwarded content with the forwarded notice
-		let {body, formatted_body} = forwardedNotice.get()
-		if (forwardedEvents.length >= 1 && ["m.text", "m.notice"].includes(forwardedEvents[0].msgtype)) { // Try to merge the forwarded content and the forwarded notice
-			forwardedEvents[0].body = body + "\n" + forwardedEvents[0].body
-			forwardedEvents[0].formatted_body = formatted_body + "<br>" + forwardedEvents[0].formatted_body
-		} else {
-			await addTextEvent(body, formatted_body, "m.notice")
-		}
-		events.push(...forwardedEvents)
-	}
-
-	// Then text content
-	if (message.content) {
 	// Mentions scenario 3: scan the message content for written @mentions of matrix users. Allows for up to one space between @ and mention.
 	const matches = [...message.content.matchAll(/@ ?([a-z0-9._]+)\b/gi)]
-		if (matches.length && matches.some(m => m[1].match(/[a-z]/i) && m[1] !== "everyone" && m[1] !== "here")) {
+	if (matches.length && matches.some(m => m[1].match(/[a-z]/i))) {
 		const writtenMentionsText = matches.map(m => m[1].toLowerCase())
 		const roomID = select("channel_room", "room_id", {channel_id: message.channel_id}).pluck().get()
 		assert(roomID)
@@ -585,15 +495,15 @@ async function messageToEvent(message, guild, options = {}, di) {
 		}
 	}
 
+	// Text content appears first
+	if (message.content) {
 		const {body, html} = await transformContent(message.content)
-		await addTextEvent(body, html, msgtype)
+		await addTextEvent(body, html, msgtype, {scanMentions: true})
 	}
 
 	// Then attachments
-	if (message.attachments) {
 	const attachmentEvents = await Promise.all(message.attachments.map(attachmentToEvent.bind(null, mentions)))
 	events.push(...attachmentEvents)
-	}
 
 	// Then embeds
 	for (const embed of message.embeds || []) {
@@ -601,26 +511,13 @@ async function messageToEvent(message, guild, options = {}, di) {
 			continue // Matrix's own URL previews are fine for images.
 		}
 
-		if (embed.url?.startsWith("https://discord.com/")) {
-			continue // If discord creates an embed preview for a discord channel link, don't copy that embed
-		}
-
 		// Start building up a replica ("rep") of the embed in Discord-markdown format, which we will convert into both plaintext and formatted body at once
 		const rep = new mxUtils.MatrixStringBuilder()
 
-		// Provider
-		if (embed.provider?.name) {
-			if (embed.provider.url) {
-				rep.addParagraph(`via ${embed.provider.name} ${embed.provider.url}`, tag`<sub><a href="${embed.provider.url}">${embed.provider.name}</a></sub>`)
-			} else {
-				rep.addParagraph(`via ${embed.provider.name}`, tag`<sub>${embed.provider.name}</sub>`)
-			}
-		}
-
 		// Author and URL into a paragraph
 		let authorNameText = embed.author?.name || ""
 		if (authorNameText && embed.author?.icon_url) authorNameText = `⏺️ ${authorNameText}` // using the emoji instead of an image
-		if (authorNameText) {
+		if (authorNameText || embed.author?.url) {
 			if (embed.author?.url) {
 				const authorURL = await transformContentMessageLinks(embed.author.url)
 				rep.addParagraph(`## ${authorNameText} ${authorURL}`, tag`<strong><a href="${authorURL}">${authorNameText}</a></strong>`)
@@ -637,11 +534,11 @@ async function messageToEvent(message, guild, options = {}, di) {
 			} else {
 				rep.addParagraph(`## ${body}`, `<strong>${html}</strong>`)
 			}
+		} else if (embed.url) {
+			rep.addParagraph(`## ${embed.url}`, tag`<strong><a href="${embed.url}">${embed.url}</a></strong>`)
 		}
 
-		let embedTypeShouldShowDescription = embed.type !== "video" // Discord doesn't display descriptions for videos
-		if (embed.provider?.name === "YouTube") embedTypeShouldShowDescription = true // But I personally like showing the descriptions for YouTube videos specifically
-		if (embed.description && embedTypeShouldShowDescription) {
+		if (embed.description) {
 			const {body, html} = await transformContent(embed.description)
 			rep.addParagraph(body, html)
 		}
@@ -655,12 +552,8 @@ async function messageToEvent(message, guild, options = {}, di) {
 			rep.addParagraph(fieldRep.get().body, fieldRep.get().formatted_body)
 		}
 
-		let chosenImage = embed.image?.url
-		// the thumbnail seems to be used for "article" type but displayed big at the bottom by discord
-		if (embed.type === "article" && embed.thumbnail?.url && !chosenImage) chosenImage = embed.thumbnail.url
-		if (chosenImage) rep.addParagraph(`📸 ${dUtils.getPublicUrlForCdn(chosenImage)}`)
-
-		if (embed.video?.url) rep.addParagraph(`🎞️ ${dUtils.getPublicUrlForCdn(embed.video.url)}`)
+		if (embed.image?.url) rep.addParagraph(`📸 ${embed.image.url}`)
+		if (embed.video?.url) rep.addParagraph(`🎞️ ${embed.video.url}`)
 
 		if (embed.footer?.text) rep.addLine(`— ${embed.footer.text}`, tag`— ${embed.footer.text}`)
 		let {body, formatted_body: html} = rep.get()
@@ -668,7 +561,7 @@ async function messageToEvent(message, guild, options = {}, di) {
 		html = `<blockquote>${html}</blockquote>`
 
 		// Send as m.notice to apply the usual automated/subtle appearance, showing this wasn't actually typed by the person
-		await addTextEvent(body, html, "m.notice")
+		await addTextEvent(body, html, "m.notice", {scanMentions: false})
 	}
 
 	// Then stickers

d2m/converters/message-to-event.pk.test.js

@@ -1,6 +1,6 @@
 const {test} = require("supertape")
 const {messageToEvent} = require("./message-to-event")
-const data = require("../../../test/data")
+const data = require("../../test/data")
 const Ty = require("../../types")
 
 /**

d2m/converters/message-to-event.test.js

@@ -1,7 +1,6 @@
 const {test} = require("supertape")
 const {messageToEvent} = require("./message-to-event")
-const {MatrixServerError} = require("../../matrix/mreq")
-const data = require("../../../test/data")
+const data = require("../../test/data")
 const Ty = require("../../types")
 
 /**
@@ -65,44 +64,6 @@ test("message2event: simple user mention", async t => {
 test("message2event: simple room mention", async t => {
 	let called = 0
 	const events = await messageToEvent(data.message.simple_room_mention, data.guild.general, {}, {
-		api: {
-			async getStateEvent(roomID, type, key) {
-				called++
-				t.equal(roomID, "!BnKuBPCvyfOkhcUjEu:cadence.moe")
-				t.equal(type, "m.room.power_levels")
-				t.equal(key, "")
-				return {
-					users: {
-						"@_ooye_bot:cadence.moe": 100
-					}
-				}
-			},
-			async getJoinedMembers(roomID) {
-				called++
-				t.equal(roomID, "!BnKuBPCvyfOkhcUjEu:cadence.moe")
-				return {
-					joined: {
-						"@_ooye_bot:cadence.moe": {display_name: null, avatar_url: null},
-						"@user:matrix.org": {display_name: null, avatar_url: null}
-					}
-				}
-			}
-		}
-	})
-	t.deepEqual(events, [{
-		$type: "m.room.message",
-		"m.mentions": {},
-		msgtype: "m.text",
-		body: "#worm-farm",
-		format: "org.matrix.custom.html",
-		formatted_body: '<a href="https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe?via=cadence.moe&via=matrix.org">#worm-farm</a>'
-	}])
-	t.equal(called, 2, "should call getStateEvent and getJoinedMembers once each")
-})
-
-test("message2event: nicked room mention", async t => {
-	let called = 0
-	const events = await messageToEvent(data.message.nicked_room_mention, data.guild.general, {}, {
 		api: {
 			async getStateEvent(roomID, type, key) {
 				called++
@@ -268,54 +229,6 @@ test("message2event: message link that OOYE doesn't know about", async t => {
 	t.equal(called, 3, "getEventForTimestamp, getStateEvent, and getJoinedMembers should be called once each")
 })
 
-test("message2event: message timestamp failed to fetch", async t => {
-	let called = 0
-	const events = await messageToEvent(data.message.message_link_to_before_ooye, data.guild.general, {}, {
-		api: {
-			async getEventForTimestamp(roomID, ts) {
-				called++
-				t.equal(roomID, "!kLRqKKUQXcibIMtOpl:cadence.moe")
-				throw new MatrixServerError({
-					errcode: "M_NOT_FOUND",
-					error: "Unable to find event from 1726762095974 in direction Direction.FORWARDS"
-				}, {})
-			},
-			async getStateEvent(roomID, type, key) { // for ?via calculation
-				called++
-				t.equal(roomID, "!kLRqKKUQXcibIMtOpl:cadence.moe")
-				t.equal(type, "m.room.power_levels")
-				t.equal(key, "")
-				return {
-					users: {
-						"@_ooye_bot:cadence.moe": 100
-					}
-				}
-			},
-			async getJoinedMembers(roomID) { // for ?via calculation
-				called++
-				t.equal(roomID, "!kLRqKKUQXcibIMtOpl:cadence.moe")
-				return {
-					joined: {
-						"@_ooye_bot:cadence.moe": {display_name: null, avatar_url: null},
-						"@user:matrix.org": {display_name: null, avatar_url: null}
-					}
-				}
-			}
-		}
-	})
-	t.deepEqual(events, [{
-		$type: "m.room.message",
-		"m.mentions": {},
-		msgtype: "m.text",
-		body: "Me: I'll scroll up to find a certain message I'll send\n_scrolls up and clicks message links for god knows how long_\n_completely forgets what they were looking for and simply begins scrolling up to find some fun moments_\n_stumbles upon:_ "
-			+ "[unknown event, timestamp resolution failed, in room: https://matrix.to/#/!kLRqKKUQXcibIMtOpl:cadence.moe?via=cadence.moe&via=matrix.org]",
-		format: "org.matrix.custom.html",
-		formatted_body: "Me: I'll scroll up to find a certain message I'll send<br><em>scrolls up and clicks message links for god knows how long</em><br><em>completely forgets what they were looking for and simply begins scrolling up to find some fun moments</em><br><em>stumbles upon:</em> "
-			+ '[unknown event, timestamp resolution failed, in room: <a href="https://matrix.to/#/!kLRqKKUQXcibIMtOpl:cadence.moe?via=cadence.moe&amp;via=matrix.org">https://matrix.to/#/!kLRqKKUQXcibIMtOpl:cadence.moe?via=cadence.moe&amp;via=matrix.org</a>]'
-	}])
-	t.equal(called, 3, "getEventForTimestamp, getStateEvent, and getJoinedMembers should be called once each")
-})
-
 test("message2event: message link from another server", async t => {
 	const events = await messageToEvent(data.message.message_link_from_another_server, data.guild.general)
 	t.deepEqual(events, [{
@@ -337,7 +250,7 @@ test("message2event: attachment with no content", async t => {
 		msgtype: "m.image",
 		url: "mxc://cadence.moe/qXoZktDqNtEGuOCZEADAMvhM",
 		body: "image.png",
-		external_url: "https://bridge.example.org/download/discordcdn/497161332244742154/1124628646431297546/image.png",
+		external_url: "https://cdn.discordapp.com/attachments/497161332244742154/1124628646431297546/image.png",
 		filename: "image.png",
 		info: {
 			mimetype: "image/png",
@@ -354,9 +267,9 @@ test("message2event: spoiler attachment", async t => {
 		$type: "m.room.message",
 		"m.mentions": {},
 		msgtype: "m.text",
-		body: "📄 Uploaded SPOILER file: https://bridge.example.org/download/discordcdn/1100319550446252084/1147465564307079258/SPOILER_69-GNDP-CADENCE.nfs.gci (74 KB)",
+		body: "📄 Uploaded SPOILER file: https://cdn.discordapp.com/attachments/1100319550446252084/1147465564307079258/SPOILER_69-GNDP-CADENCE.nfs.gci (74 KB)",
 		format: "org.matrix.custom.html",
-		formatted_body: "<blockquote>📄 Uploaded SPOILER file: <a href=\"https://bridge.example.org/download/discordcdn/1100319550446252084/1147465564307079258/SPOILER_69-GNDP-CADENCE.nfs.gci\">https://bridge.example.org/download/discordcdn/1100319550446252084/1147465564307079258/SPOILER_69-GNDP-CADENCE.nfs.gci</a> (74 KB)</blockquote>"
+		formatted_body: "<blockquote>📄 Uploaded SPOILER file: <a href=\"https://cdn.discordapp.com/attachments/1100319550446252084/1147465564307079258/SPOILER_69-GNDP-CADENCE.nfs.gci\">https://cdn.discordapp.com/attachments/1100319550446252084/1147465564307079258/SPOILER_69-GNDP-CADENCE.nfs.gci</a> (74 KB)</blockquote>"
 	}])
 })
 
@@ -373,7 +286,7 @@ test("message2event: stickers", async t => {
 		msgtype: "m.image",
 		url: "mxc://cadence.moe/ZDCNYnkPszxGKgObUIFmvjus",
 		body: "image.png",
-		external_url: "https://bridge.example.org/download/discordcdn/122155380120748034/1106366167486038016/image.png",
+		external_url: "https://cdn.discordapp.com/attachments/122155380120748034/1106366167486038016/image.png",
 		filename: "image.png",
 		info: {
 			mimetype: "image/png",
@@ -427,7 +340,7 @@ test("message2event: skull webp attachment with content", async t => {
 			mimetype: "image/webp",
 			size: 74290
 		},
-		external_url: "https://bridge.example.org/download/discordcdn/112760669178241024/1128084747910918195/skull.webp",
+		external_url: "https://cdn.discordapp.com/attachments/112760669178241024/1128084747910918195/skull.webp",
 		filename: "skull.webp",
 		url: "mxc://cadence.moe/sDxWmDErBhYBxtDcJQgBETes"
 	}])
@@ -461,7 +374,7 @@ test("message2event: reply to skull webp attachment with content", async t => {
 			mimetype: "image/jpeg",
 			size: 85906
 		},
-		external_url: "https://bridge.example.org/download/discordcdn/112760669178241024/1128084851023675515/RDT_20230704_0936184915846675925224905.jpg",
+		external_url: "https://cdn.discordapp.com/attachments/112760669178241024/1128084851023675515/RDT_20230704_0936184915846675925224905.jpg",
 		filename: "RDT_20230704_0936184915846675925224905.jpg",
 		url: "mxc://cadence.moe/WlAbFSiNRIHPDEwKdyPeGywa"
 	}])
@@ -551,7 +464,7 @@ test("message2event: reply with a video", async t => {
 		body: "Ins_1960637570.mp4",
 		filename: "Ins_1960637570.mp4",
 		url: "mxc://cadence.moe/kMqLycqMURhVpwleWkmASpnU",
-		external_url: "https://bridge.example.org/download/discordcdn/112760669178241024/1197621094786531358/Ins_1960637570.mp4",
+		external_url: "https://cdn.discordapp.com/attachments/112760669178241024/1197621094786531358/Ins_1960637570.mp4?ex=65bbee8f&is=65a9798f&hm=ae14f7824c3d526c5e11c162e012e1ee405fd5776e1e9302ed80ccd86503cfda&",
 		info: {
 			h: 854,
 			mimetype: "video/mp4",
@@ -572,7 +485,7 @@ test("message2event: voice message", async t => {
 	t.deepEqual(events, [{
 		$type: "m.room.message",
       body: "voice-message.ogg",
-      external_url: "https://bridge.example.org/download/discordcdn/1099031887500034088/1112476845502365786/voice-message.ogg",
+      external_url: "https://cdn.discordapp.com/attachments/1099031887500034088/1112476845502365786/voice-message.ogg?ex=65c92d4c&is=65b6b84c&hm=0654bab5027474cbe23875954fa117cf44d8914c144cd151879590fa1baf8b1c&",
       filename: "voice-message.ogg",
       info: {
         duration: 3960.0000381469727,
@@ -595,7 +508,7 @@ test("message2event: misc file", async t => {
 	}, {
 		$type: "m.room.message",
       body: "the.yml",
-      external_url: "https://bridge.example.org/download/discordcdn/122155380120748034/1174514575220158545/the.yml",
+      external_url: "https://cdn.discordapp.com/attachments/122155380120748034/1174514575220158545/the.yml?ex=65cd6270&is=65baed70&hm=8c5f1b571784e3c7f99628492298815884e351ae0dc7c2ae40dd22d97caf27d9&",
       filename: "the.yml",
 		info: {
 			mimetype: "text/plain; charset=utf-8",
@@ -646,84 +559,6 @@ test("message2event: simple reply in thread to a matrix user's reply", async t =
 	}])
 })
 
-test("message2event: infinidoge's reply to ami's matrix smalltext reply to infinidoge", async t => {
-	const events = await messageToEvent(data.message.infinidoge_reply_to_ami_matrix_smalltext_reply_to_infinidoge, data.guild.general, {}, {
-		api: {
-			getEvent: mockGetEvent(t, "!BnKuBPCvyfOkhcUjEu:cadence.moe", "$W1nsDhNIojWrcQOdnOD9RaEvrz2qyZErQoNhPRs1nK4", {
-				type: "m.room.message",
-				sender: "@ami:the-apothecary.club",
-				content: {
-					msgtype: "m.text",
-					body: `> <@_ooye_infinidoge:cadence.moe> Neat that they thought of that\n\nlet me guess they got a lot of bug reports like "empty chest with no loot?"`,
-					format: "org.matrix.custom.html",
-					formatted_body: `<mx-reply><blockquote><a href="https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$baby?via=cadence.moe">In reply to</a> <a href="https://matrix.to/#/@_ooye_infinidoge:cadence.moe">@_ooye_infinidoge:cadence.moe</a><br>Neat that they thought of that</blockquote></mx-reply>let me guess they got a lot of bug reports like "empty chest with no loot?"`,
-					"m.relates_to": {
-						"m.in_reply_to": {
-							event_id: "$baby"
-						}
-					}
-				},
-				event_id: "$W1nsDhNIojWrcQOdnOD9RaEvrz2qyZErQoNhPRs1nK4",
-				room_id: "!BnKuBPCvyfOkhcUjEu:cadence.moe"
-			})
-		}
-	})
-	t.deepEqual(events, [{
-		$type: "m.room.message",
-		"m.relates_to": {
-			"m.in_reply_to": {
-				event_id: "$W1nsDhNIojWrcQOdnOD9RaEvrz2qyZErQoNhPRs1nK4"
-			}
-		},
-		"m.mentions": {
-			user_ids: ["@ami:the-apothecary.club"]
-		},
-		msgtype: "m.text",
-      body: `> Ami (she/her): let me guess they got a lot of bug reports like "empty chest with no loot?"\n\nMost likely`,
-      format: "org.matrix.custom.html",
-      formatted_body: `<mx-reply><blockquote><a href="https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$W1nsDhNIojWrcQOdnOD9RaEvrz2qyZErQoNhPRs1nK4">In reply to</a> <a href="https://matrix.to/#/@ami:the-apothecary.club">Ami (she/her)</a><br>let me guess they got a lot of bug reports like "empty chest with no loot?"</blockquote></mx-reply>Most likely`,
-	}])
-})
-
-test("message2event: infinidoge's reply to ami's matrix smalltext singleline reply to infinidoge", async t => {
-	const events = await messageToEvent(data.message.infinidoge_reply_to_ami_matrix_smalltext_singleline_reply_to_infinidoge, data.guild.general, {}, {
-		api: {
-			getEvent: mockGetEvent(t, "!BnKuBPCvyfOkhcUjEu:cadence.moe", "$W1nsDhNIojWrcQOdnOD9RaEvrz2qyZErQoNhPRs1nK4", {
-				type: "m.room.message",
-				sender: "@ami:the-apothecary.club",
-				content: {
-					msgtype: "m.text",
-					body: `> <@_ooye_infinidoge:cadence.moe> Neat that they thought of that\n\nlet me guess they got a lot of bug reports like "empty chest with no loot?"`,
-					format: "org.matrix.custom.html",
-					formatted_body: `<mx-reply><blockquote><a href="https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$baby?via=cadence.moe">In reply to</a> <a href="https://matrix.to/#/@_ooye_infinidoge:cadence.moe">@_ooye_infinidoge:cadence.moe</a><br>Neat that they thought of that</blockquote></mx-reply>let me guess they got a lot of bug reports like "empty chest with no loot?"`,
-					"m.relates_to": {
-						"m.in_reply_to": {
-							event_id: "$baby"
-						}
-					}
-				},
-				event_id: "$W1nsDhNIojWrcQOdnOD9RaEvrz2qyZErQoNhPRs1nK4",
-				room_id: "!BnKuBPCvyfOkhcUjEu:cadence.moe"
-			})
-		}
-	})
-	t.deepEqual(events, [{
-		$type: "m.room.message",
-		"m.relates_to": {
-			"m.in_reply_to": {
-				event_id: "$W1nsDhNIojWrcQOdnOD9RaEvrz2qyZErQoNhPRs1nK4"
-			}
-		},
-		"m.mentions": {
-			user_ids: ["@ami:the-apothecary.club"]
-		},
-		msgtype: "m.text",
-      body: `> Ami (she/her): let me guess they got a lot of bug reports like "empty chest with no loot?"\n\nMost likely`,
-      format: "org.matrix.custom.html",
-      formatted_body: `<mx-reply><blockquote><a href="https://matrix.to/#/!BnKuBPCvyfOkhcUjEu:cadence.moe/$W1nsDhNIojWrcQOdnOD9RaEvrz2qyZErQoNhPRs1nK4">In reply to</a> <a href="https://matrix.to/#/@ami:the-apothecary.club">Ami (she/her)</a><br>let me guess they got a lot of bug reports like "empty chest with no loot?"</blockquote></mx-reply>Most likely`,
-	}])
-})
-
 test("message2event: simple written @mention for matrix user", async t => {
 	const events = await messageToEvent(data.message.simple_written_at_mention_for_matrix, data.guild.general, {}, {
 		api: {
@@ -837,7 +672,7 @@ test("message2event: very large attachment is linked instead of being uploaded",
 		content: "hey",
 		attachments: [{
 			filename: "hey.jpg",
-			url: "https://cdn.discordapp.com/attachments/123/456/789.mega",
+			url: "https://discord.com/404/hey.jpg",
 			content_type: "application/i-made-it-up",
 			size: 100e6
 		}]
@@ -851,9 +686,9 @@ test("message2event: very large attachment is linked instead of being uploaded",
 		$type: "m.room.message",
 		"m.mentions": {},
 		msgtype: "m.text",
-		body: "📄 Uploaded file: https://bridge.example.org/download/discordcdn/123/456/789.mega (100 MB)",
+		body: "📄 Uploaded file: https://discord.com/404/hey.jpg (100 MB)",
 		format: "org.matrix.custom.html",
-		formatted_body: '📄 Uploaded file: <a href="https://bridge.example.org/download/discordcdn/123/456/789.mega">hey.jpg</a> (100 MB)'
+		formatted_body: '📄 Uploaded file: <a href="https://discord.com/404/hey.jpg">hey.jpg</a> (100 MB)'
 	}])
 })
 
@@ -954,183 +789,3 @@ test("message2event: crossposted announcements say where they are crossposted fr
 		formatted_body: "🔀 <strong>Chewey Bot Official Server #announcements</strong><br>All text based commands are now inactive on Chewey Bot<br>To continue using commands you'll need to use them as slash commands"
 	}])
 })
-
-test("message2event: @everyone", async t => {
-	const events = await messageToEvent(data.message_mention_everyone.at_everyone)
-	t.deepEqual(events, [{
-		$type: "m.room.message",
-		msgtype: "m.text",
-		body: "@room",
-		"m.mentions": {
-			room: true
-		}
-	}])
-})
-
-test("message2event: @here", async t => {
-	const events = await messageToEvent(data.message_mention_everyone.at_here)
-	t.deepEqual(events, [{
-		$type: "m.room.message",
-		msgtype: "m.text",
-		body: "@room",
-		"m.mentions": {
-			room: true
-		}
-	}])
-})
-
-test("message2event: @everyone without permission", async t => {
-	const events = await messageToEvent(data.message_mention_everyone.at_everyone_without_permission)
-	t.deepEqual(events, [{
-		$type: "m.room.message",
-		msgtype: "m.text",
-		body: "@everyone <-- this is testing that it DOESN'T mention. if this mentions everyone then my apologies.",
-		format: "org.matrix.custom.html",
-		formatted_body: "@everyone &lt;-- this is testing that it DOESN'T mention. if this mentions everyone then my apologies.",
-		"m.mentions": {}
-	}])
-})
-
-test("message2event: @here without permission", async t => {
-	const events = await messageToEvent(data.message_mention_everyone.at_here_without_permission)
-	t.deepEqual(events, [{
-		$type: "m.room.message",
-		msgtype: "m.text",
-		body: "@here <-- this is testing that it DOESN'T mention. if this mentions people then my apologies.",
-		format: "org.matrix.custom.html",
-		formatted_body: "@here &lt;-- this is testing that it DOESN'T mention. if this mentions people then my apologies.",
-		"m.mentions": {}
-	}])
-})
-
-test("message2event: @everyone within a link", async t => {
-	const events = await messageToEvent(data.message_mention_everyone.at_everyone_within_link)
-	t.deepEqual(events, [{
-		$type: "m.room.message",
-		msgtype: "m.text",
-		body: "https://github.com/@everyone",
-		format: "org.matrix.custom.html",
-		formatted_body: `<a href="https://github.com/@everyone">https://github.com/@everyone</a>`,
-		"m.mentions": {}
-	}])
-})
-
-test("message2event: forwarded image", async t => {
-	const events = await messageToEvent(data.message.forwarded_image)
-	t.deepEqual(events, [
-		{
-			$type: "m.room.message",
-			body: "[🔀 Forwarded message]",
-			format: "org.matrix.custom.html",
-			formatted_body: "🔀 <em>Forwarded message</em>",
-			"m.mentions": {},
-			msgtype: "m.notice",
-		},
-		{
-			$type: "m.room.message",
-			body: "100km.gif",
-			external_url: "https://bridge.example.org/download/discordcdn/112760669178241024/1296237494987133070/100km.gif",
-			filename: "100km.gif",
-			info: {
-				h: 300,
-				mimetype: "image/gif",
-				size: 2965649,
-				w: 300,
-			},
-			"m.mentions": {},
-			msgtype: "m.image",
-			url: "mxc://cadence.moe/qDAotmebTfEIfsAIVCEZptLh",
-		},
-	])
-})
-
-test("message2event: constructed forwarded message", async t => {
-	const events = await messageToEvent(data.message.constructed_forwarded_message, {}, {}, {
-		api: {
-			async getJoinedMembers() {
-				return {
-					joined: {
-						"@_ooye_bot:cadence.moe": {display_name: null, avatar_url: null},
-						"@user:matrix.org": {display_name: null, avatar_url: null}
-					}
-				}
-			}
-		}
-	})
-	t.deepEqual(events, [
-		{
-			$type: "m.room.message",
-			body: "[🔀 Forwarded from #wonderland]"
-				+ "\n» What's cooking, good looking? :hipposcope:",
-			format: "org.matrix.custom.html",
-			formatted_body: `🔀 <em>Forwarded from <a href="https://matrix.to/#/!qzDBLKlildpzrrOnFZ:cadence.moe/$tBIT8mO7XTTCgIINyiAIy6M2MSoPAdJenRl_RLyYuaE?via=cadence.moe&amp;via=matrix.org">wonderland</a></em>`
-				+ `<br><blockquote>What's cooking, good looking? <img data-mx-emoticon height="32" src="mxc://cadence.moe/WbYqNlACRuicynBfdnPYtmvc" title=":hipposcope:" alt=":hipposcope:"></blockquote>`,
-			"m.mentions": {},
-			msgtype: "m.notice",
-		},
-		{
-			$type: "m.room.message",
-			body: "100km.gif",
-			external_url: "https://bridge.example.org/download/discordcdn/112760669178241024/1296237494987133070/100km.gif",
-			filename: "100km.gif",
-			info: {
-				h: 300,
-				mimetype: "image/gif",
-				size: 2965649,
-				w: 300,
-			},
-			"m.mentions": {},
-			msgtype: "m.image",
-			url: "mxc://cadence.moe/qDAotmebTfEIfsAIVCEZptLh",
-		},
-		{
-			$type: "m.room.message",
-			body: "» | ## This man"
-				+ "\n» | "
-				+ "\n» | ## This man is 100 km away from your house"
-				+ "\n» | "
-				+ "\n» | ### Distance away"
-				+ "\n» | 99 km"
-				+ "\n» | "
-				+ "\n» | ### Distance away"
-				+ "\n» | 98 km",
-			format: "org.matrix.custom.html",
-			formatted_body: "<blockquote><blockquote><p><strong>This man</strong></p><p><strong>This man is 100 km away from your house</strong></p><p><strong>Distance away</strong><br>99 km</p><p><strong>Distance away</strong><br>98 km</p></blockquote></blockquote>",
-			"m.mentions": {},
-			msgtype: "m.notice"
-		}
-	])
-})
-
-test("message2event: constructed forwarded text", async t => {
-	const events = await messageToEvent(data.message.constructed_forwarded_text, {}, {}, {
-		api: {
-			async getJoinedMembers() {
-				return {
-					joined: {
-						"@_ooye_bot:cadence.moe": {display_name: null, avatar_url: null},
-						"@user:matrix.org": {display_name: null, avatar_url: null}
-					}
-				}
-			}
-		}
-	})
-	t.deepEqual(events, [
-		{
-			$type: "m.room.message",
-			body: "[🔀 Forwarded from #amanda-spam]"
-				+ "\n» What's cooking, good looking?",
-			format: "org.matrix.custom.html",
-			formatted_body: `🔀 <em>Forwarded from <a href="https://matrix.to/#/!CzvdIdUQXgUjDVKxeU:cadence.moe?via=cadence.moe&amp;via=matrix.org">amanda-spam</a></em>`
-				+ `<br><blockquote>What's cooking, good looking?</blockquote>`,
-			"m.mentions": {},
-			msgtype: "m.notice",
-		},
-		{
-			$type: "m.room.message",
-			body: "What's cooking everybody ‼️",
-			"m.mentions": {},
-			msgtype: "m.text",
-		}
-	])
-})

d2m/converters/pins-to-list.test.js

@@ -1,5 +1,5 @@
 const {test} = require("supertape")
-const data = require("../../../test/data")
+const data = require("../../test/data")
 const {pinsToList} = require("./pins-to-list")
 
 test("pins2list: converts known IDs, ignores unknown IDs", t => {

d2m/converters/remove-reaction.js

@@ -12,7 +12,7 @@ const utils = sync.require("../../m2d/converters/utils")
  * @typedef ReactionRemoveRequest
  * @prop {string} eventID
  * @prop {string | null} mxid
- * @prop {bigint} [hash]
+ * @prop {BigInt} [hash]
  */
 
 /**

d2m/converters/remove-reaction.test.js

@@ -10,9 +10,7 @@ function fakeSpecificReactionRemoval(userID, emoji, emojiID) {
 		channel_id: "THE_CHANNEL",
 		message_id: "THE_MESSAGE",
 		user_id: userID,
-		emoji: {id: emojiID, name: emoji},
-		burst: false,
-		type: 0
+		emoji: {id: emojiID, name: emoji}
 	}
 }
 

d2m/converters/thread-to-announcement.js

@@ -4,9 +4,10 @@ const assert = require("assert").strict
 
 const passthrough = require("../../passthrough")
 const {discord, sync, db, select} = passthrough
+/** @type {import("../../matrix/read-registration")} */
+const reg = sync.require("../../matrix/read-registration.js")
 /** @type {import("../../m2d/converters/utils")} */
 const mxUtils = sync.require("../../m2d/converters/utils")
-const {reg} = require("../../matrix/read-registration.js")
 
 const userRegex = reg.namespaces.users.map(u => new RegExp(u.regex))
 

d2m/converters/thread-to-announcement.test.js

@@ -1,6 +1,6 @@
 const {test} = require("supertape")
 const {threadToAnnouncement} = require("./thread-to-announcement")
-const data = require("../../../test/data")
+const data = require("../../test/data")
 const Ty = require("../../types")
 
 /**

d2m/converters/user-to-mxid.js

@@ -1,7 +1,6 @@
 // @ts-check
 
 const assert = require("assert")
-const {reg} = require("../../matrix/read-registration")
 
 const passthrough = require("../../passthrough")
 const {select} = passthrough
@@ -25,10 +24,6 @@ function downcaseUsername(user) {
 		.replace(/[^a-z0-9._=/-]*/g, "")
 		// remove leading and trailing dashes and underscores...
 		.replace(/(?:^[_-]*|[_-]*$)/g, "")
-	// If requested, also make the Discord user ID part of the username
-	if (reg.ooye.include_user_id_in_mxid) {
-		downcased = user.id + "_" + downcased
-	}
 	// The new length must be at least 2 characters (in other words, it should have some content)
 	if (downcased.length < 2) {
 		downcased = user.id

d2m/converters/user-to-mxid.test.js

@@ -1,7 +1,7 @@
 const {test} = require("supertape")
 const tryToCatch = require("try-to-catch")
 const assert = require("assert")
-const data = require("../../../test/data")
+const data = require("../../test/data")
 const {userToSimName} = require("./user-to-mxid")
 
 test("user2name: cannot create user for a webhook", async t => {
@@ -44,11 +44,3 @@ test("user2name: uses ID when name has only disallowed characters", t => {
 test("user2name: works on special user", t => {
 	t.equal(userToSimName(data.user.clyde_ai), "clyde_ai")
 })
-
-test("user2name: includes ID if requested in config", t => {
-	const {reg} = require("../../matrix/read-registration")
-	reg.ooye.include_user_id_in_mxid = true
-	t.equal(userToSimName({username: "Harry Styles!", discriminator: "0001", id: "123456"}), "123456_harry_styles")
-   t.equal(userToSimName({username: "f***", discriminator: "0001", id: "123456"}), "123456_f")
-	reg.ooye.include_user_id_in_mxid = false
-})

d2m/discord-client.js

@@ -6,7 +6,7 @@ const { Client: CloudStorm } = require("cloudstorm")
 const passthrough = require("../passthrough")
 const { sync } = passthrough
 
-/** @type {import("./discord-packets")} */
+/** @type {typeof import("./discord-packets")} */
 const discordPackets = sync.require("./discord-packets")
 
 class DiscordClient {
@@ -57,9 +57,6 @@ class DiscordClient {
 		addEventLogger("error", "Error")
 		addEventLogger("disconnected", "Disconnected")
 		addEventLogger("ready", "Ready")
-		this.snow.requestHandler.on("requestError", (requestID, error) => {
-			console.error("request error:", error)
-		})
 	}
 }
 

d2m/discord-packets.js

@@ -4,11 +4,7 @@
 
 const DiscordTypes = require("discord-api-types/v10")
 const passthrough = require("../passthrough")
-const {sync, db} = passthrough
-
-function populateGuildID(guildID, channelID) {
-	db.prepare("UPDATE channel_room SET guild_id = ? WHERE channel_id = ?").run(guildID, channelID)
-}
+const { sync } = passthrough
 
 const utils = {
 	/**
@@ -20,8 +16,6 @@ const utils = {
 		// requiring this later so that the client is already constructed by the time event-dispatcher is loaded
 		/** @type {typeof import("./event-dispatcher")} */
 		const eventDispatcher = sync.require("./event-dispatcher")
-		/** @type {import("../discord/register-interactions")} */
-		const interactions = sync.require("../discord/register-interactions")
 
 		// Client internals, keep track of the state we need
 		if (message.t === "READY") {
@@ -40,16 +34,13 @@ const utils = {
 				channel.guild_id = message.d.id
 				arr.push(channel.id)
 				client.channels.set(channel.id, channel)
-				populateGuildID(message.d.id, channel.id)
 			}
 			for (const thread of message.d.threads || []) {
 				// @ts-ignore
 				thread.guild_id = message.d.id
 				arr.push(thread.id)
 				client.channels.set(thread.id, thread)
-				populateGuildID(message.d.id, thread.id)
 			}
-
 			if (listen === "full") {
 				eventDispatcher.checkMissedExpressions(message.d)
 				eventDispatcher.checkMissedPins(client, message.d)
@@ -98,11 +89,7 @@ const utils = {
 
 		} else if (message.t === "THREAD_CREATE") {
 			client.channels.set(message.d.id, message.d)
-			if (message.d["guild_id"]) {
-				populateGuildID(message.d["guild_id"], message.d.id)
-				const channels = client.guildChannelMap.get(message.d["guild_id"])
-				if (channels && !channels.includes(message.d.id)) channels.push(message.d.id)
-			}
+
 
 		} else if (message.t === "CHANNEL_UPDATE" || message.t === "THREAD_UPDATE") {
 			client.channels.set(message.d.id, message.d)
@@ -124,15 +111,14 @@ const utils = {
 			client.guildChannelMap.delete(message.d.id)
 
 
-		} else if (message.t === "CHANNEL_CREATE") {
+		} else if (message.t === "CHANNEL_CREATE" || message.t === "CHANNEL_DELETE") {
+			if (message.t === "CHANNEL_CREATE") {
 				client.channels.set(message.d.id, message.d)
 				if (message.d["guild_id"]) { // obj[prop] notation can be used to access a property without typescript complaining that it doesn't exist on all values something can have
-				populateGuildID(message.d["guild_id"], message.d.id)
 					const channels = client.guildChannelMap.get(message.d["guild_id"])
 					if (channels && !channels.includes(message.d.id)) channels.push(message.d.id)
 				}
-
-		} else if (message.t === "CHANNEL_DELETE") {
+			} else {
 				client.channels.delete(message.d.id)
 				if (message.d["guild_id"]) {
 					const channels = client.guildChannelMap.get(message.d["guild_id"])
@@ -142,6 +128,7 @@ const utils = {
 					}
 				}
 			}
+		}
 
 		// Event dispatcher for OOYE bridge operations
 		if (listen === "full") {
@@ -158,9 +145,6 @@ const utils = {
 				} else if (message.t === "CHANNEL_PINS_UPDATE") {
 					await eventDispatcher.onChannelPinsUpdate(client, message.d)
 
-				} else if (message.t === "CHANNEL_DELETE") {
-					await eventDispatcher.onChannelDelete(client, message.d)
-
 				} else if (message.t === "THREAD_CREATE") {
 					// @ts-ignore
 					await eventDispatcher.onThreadCreate(client, message.d)
@@ -188,14 +172,10 @@ const utils = {
 
 				} else if (message.t === "MESSAGE_REACTION_REMOVE" || message.t === "MESSAGE_REACTION_REMOVE_EMOJI" || message.t === "MESSAGE_REACTION_REMOVE_ALL") {
 					await eventDispatcher.onSomeReactionsRemoved(client, message.d)
-
-				} else if (message.t === "INTERACTION_CREATE") {
-					await interactions.dispatchInteraction(message.d)
 				}
-
 			} catch (e) {
 				// Let OOYE try to handle errors too
-				await eventDispatcher.onError(client, e, message)
+				eventDispatcher.onError(client, e, message)
 			}
 		}
 	}

d2m/event-dispatcher.js

@@ -27,12 +27,12 @@ const updatePins = sync.require("./actions/update-pins")
 const api = sync.require("../matrix/api")
 /** @type {import("../discord/utils")} */
 const dUtils = sync.require("../discord/utils")
+/** @type {import("../discord/discord-command-handler")}) */
+const discordCommandHandler = sync.require("../discord/discord-command-handler")
 /** @type {import("../m2d/converters/utils")} */
 const mxUtils = require("../m2d/converters/utils")
 /** @type {import("./actions/speedbump")} */
 const speedbump = sync.require("./actions/speedbump")
-/** @type {import("./actions/retrigger")} */
-const retrigger = sync.require("./actions/retrigger")
 
 /** @type {any} */ // @ts-ignore bad types from semaphore
 const Semaphore = require("@chriscdn/promise-semaphore")
@@ -48,7 +48,7 @@ module.exports = {
 	 * @param {Error} e
 	 * @param {import("cloudstorm").IGatewayMessage} gatewayMessage
 	 */
-	async onError(client, e, 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 ${gatewayMessage.t} gateway event:`)
@@ -81,7 +81,7 @@ module.exports = {
 			builder.addLine(`Error trace:\n${stackLines.join("\n")}`, `<details><summary>Error trace</summary><pre>${stackLines.join("\n")}</pre></details>`)
 		}
 		builder.addLine("", `<details><summary>Original payload</summary><pre>${util.inspect(gatewayMessage.d, false, 4, false)}</pre></details>`)
-		await api.sendEvent(roomID, "m.room.message", {
+		api.sendEvent(roomID, "m.room.message", {
 			...builder.get(),
 			"moe.cadence.ooye.error": {
 				source: "discord",
@@ -115,7 +115,8 @@ module.exports = {
 			if (!member) return
 			if (!("permission_overwrites" in channel)) continue
 			const permissions = dUtils.getPermissions(member.roles, guild.roles, client.user.id, channel.permission_overwrites)
-			if (!dUtils.hasAllPermissions(permissions, ["ViewChannel", "ReadMessageHistory"])) continue // We don't have permission to look back in this channel
+			const wants = BigInt(1 << 10) | BigInt(1 << 16) // VIEW_CHANNEL + READ_MESSAGE_HISTORY
+			if ((permissions & wants) !== wants) continue // We don't have permission to look back in this channel
 
 			/** More recent messages come first. */
 			// console.log(`[check missed messages] in ${channel.id} (${guild.name} / ${channel.name}) because its last message ${channel.last_message_id} is not in the database`)
@@ -163,7 +164,8 @@ module.exports = {
 
 			// Permissions check
 			const permissions = dUtils.getPermissions(member.roles, guild.roles, client.user.id, channel.permission_overwrites)
-			if (!dUtils.hasAllPermissions(permissions, ["ViewChannel", "ReadMessageHistory"])) continue // We don't have permission to look up the pins in this channel
+			const wants = BigInt(1 << 10) | BigInt(1 << 16) // VIEW_CHANNEL + READ_MESSAGE_HISTORY
+			if ((permissions & wants) !== wants) continue // We don't have permission to look up the pins in this channel
 
 			const row = select("channel_room", ["room_id", "last_bridged_pin_timestamp"], {channel_id: channel.id}).get()
 			if (!row) continue // Only care about already bridged channels
@@ -191,7 +193,7 @@ module.exports = {
 	async onThreadCreate(client, thread) {
 		const channelID = thread.parent_id || undefined
 		const parentRoomID = select("channel_room", "room_id", {channel_id: channelID}).pluck().get()
-		if (!parentRoomID) return // Not interested in a thread if we aren't interested in its wider channel (won't autocreate)
+		if (!parentRoomID) return // Not interested in a thread if we aren't interested in its wider channel
 		const threadRoomID = await createRoom.syncRoom(thread.id) // Create room (will share the same inflight as the initial message to the thread)
 		await announceThread.announceThread(parentRoomID, threadRoomID, thread)
 	},
@@ -228,19 +230,6 @@ module.exports = {
 		await updatePins.updatePins(data.channel_id, roomID, convertedTimestamp)
 	},
 
-	/**
-	 * @param {import("./discord-client")} client
-	 * @param {DiscordTypes.GatewayChannelDeleteDispatchData} channel
-	 */
-	async onChannelDelete(client, channel) {
-		const guildID = channel["guild_id"]
-		if (!guildID) return // channel must have been a DM channel or something
-		const roomID = select("channel_room", "room_id", {channel_id: channel.id}).pluck().get()
-		if (!roomID) return // channel wasn't being bridged in the first place
-		// @ts-ignore
-		await createRoom.unbridgeDeletedChannel(channel, guildID)
-	},
-
 	/**
 	 * @param {import("./discord-client")} client
 	 * @param {DiscordTypes.GatewayMessageCreateDispatchData} message
@@ -249,7 +238,6 @@ module.exports = {
 		if (message.author.username === "Deleted User") return // Nothing we can do for deleted users.
 		const channel = client.channels.get(message.channel_id)
 		if (!channel || !("guild_id" in channel) || !channel.guild_id) return // Nothing we can do in direct messages.
-
 		const guild = client.guilds.get(channel.guild_id)
 		assert(guild)
 
@@ -258,17 +246,12 @@ module.exports = {
 			if (row) return // The message was sent by the bridge's own webhook on discord. We don't want to reflect this back, so just drop it.
 		}
 
-		if (dUtils.isEphemeralMessage(message)) return // Ephemeral messages are for the eyes of the receiver only!
-
-		if (!createRoom.existsOrAutocreatable(channel, guild.id)) return // Check that the sending-to room exists or is autocreatable
-
 		const {affected, row} = await speedbump.maybeDoSpeedbump(message.channel_id, message.id)
 		if (affected) return
 
 		// @ts-ignore
-		await sendMessage.sendMessage(message, channel, guild, row)
-
-		retrigger.messageFinishedBridging(message.id)
+		await sendMessage.sendMessage(message, guild, row),
+		await discordCommandHandler.execute(message, channel, guild)
 	},
 
 	/**
@@ -276,35 +259,29 @@ module.exports = {
 	 * @param {DiscordTypes.GatewayMessageUpdateDispatchData} data
 	 */
 	async onMessageUpdate(client, data) {
-		// 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.
-		// Otherwise, if there are embeds, then the system generated URL preview embeds.
-		if (!(typeof data.content === "string" || "embeds" in data)) return
-
 		if (data.webhook_id) {
 			const row = select("webhook", "webhook_id", {webhook_id: data.webhook_id}).pluck().get()
 			if (row) return // The message was sent by the bridge's own webhook on discord. We don't want to reflect this back, so just drop it.
 		}
 
-		if (dUtils.isEphemeralMessage(data)) return // Ephemeral messages are for the eyes of the receiver only!
-
 		// Edits need to go through the speedbump as well. If the message is delayed but the edit isn't, we don't have anything to edit from.
 		const {affected, row} = await speedbump.maybeDoSpeedbump(data.channel_id, data.id)
 		if (affected) return
 
-		// Check that the sending-to room exists, and deal with Eventual Consistency(TM)
-		if (retrigger.eventNotFoundThenRetrigger(data.id, module.exports.onMessageUpdate, client, data)) 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 {DiscordTypes.GatewayMessageCreateDispatchData} */
 			// @ts-ignore
 			const message = data
+
 			const channel = client.channels.get(message.channel_id)
 			if (!channel || !("guild_id" in channel) || !channel.guild_id) return // Nothing we can do in direct messages.
 			const guild = client.guilds.get(channel.guild_id)
 			assert(guild)
-
 			// @ts-ignore
-		await retrigger.pauseChanges(message.id, editMessage.editMessage(message, guild, row))
+			await editMessage.editMessage(message, guild, row)
+		}
 	},
 
 	/**
@@ -313,6 +290,7 @@ module.exports = {
 	 */
 	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.
+		discordCommandHandler.onReactionAdd(data)
 		await addReaction.addReaction(data)
 	},
 
@@ -330,7 +308,6 @@ module.exports = {
 	 */
 	async onMessageDelete(client, data) {
 		speedbump.onMessageDelete(data.id)
-		if (retrigger.eventNotFoundThenRetrigger(data.id, module.exports.onMessageDelete, client, data)) return
 		await deleteMessage.deleteMessage(data)
 	},
 

db/migrations/0002-optimise-profile-content.up.js

@@ -3,7 +3,6 @@ module.exports = async function(db) {
 	const contents = db.prepare("SELECT distinct hashed_profile_content FROM sim_member WHERE hashed_profile_content IS NOT NULL").pluck().all()
 	const stmt = db.prepare("UPDATE sim_member SET hashed_profile_content = ? WHERE hashed_profile_content = ?")
 	db.transaction(() => {
-		/* c8 ignore next 6 */
 		for (let s of contents) {
 			let b = Buffer.isBuffer(s) ? Uint8Array.from(s) : Uint8Array.from(Buffer.from(s))
 			const unsignedHash = hasher.h64Raw(b)

db/orm-defs.d.ts

@@ -33,11 +33,6 @@ export type Models = {
 		privacy_level: number
 	}
 
-	guild_active: {
-		guild_id: string
-		autocreate: 0 | 1
-	}
-
 	lottie: {
 		sticker_id: string
 		mxc_url: string
@@ -47,14 +42,7 @@ export type Models = {
 		room_id: string
 		mxid: string
 		displayname: string | null
-		avatar_url: string | null,
-		power_level: number
-	}
-
-	member_power: {
-		mxid: string
-		room_id: string
-		power_level: number
+		avatar_url: string | null
 	}
 
 	message_channel: {
@@ -62,6 +50,7 @@ export type Models = {
 		channel_id: string
 	}
 
+	// A sim is an account that is being simulated by the bridge to copy events from the other side. See d2m\actions\register-user.js for relevant behavior and comments.
 	sim: {
 		user_id: string
 		sim_name: string
@@ -105,10 +94,6 @@ export type Models = {
 		emoji_id: string
 		guild_id: string
 	}
-
-	media_proxy: {
-		permitted_hash: number
-	}
 }
 
 export type Prepared<Row> = {
@@ -116,12 +101,10 @@ export type Prepared<Row> = {
 	safeIntegers: () => Prepared<{[K in keyof Row]: Row[K] extends number ? BigInt : Row[K]}>
 	raw: () => Prepared<Row[keyof Row][]>
 	all: (..._: any[]) => Row[]
-	get: (..._: any[]) => Row | null | undefined
+	get: (..._: any[]) => Row | null
 }
 
 export type AllKeys<U> = U extends any ? keyof U : never
 export type PickTypeOf<T, K extends AllKeys<T>> = T extends { [k in K]?: any } ? T[K] : never
 export type Merge<U> = {[x in AllKeys<U>]: PickTypeOf<U, x>}
 export type Nullable<T> = {[k in keyof T]: T[k] | null}
-export type Numberish<T> = {[k in keyof T]: T[k] extends number ? (number | bigint) : T[k]}
-export type ValueOrArray<T> = {[k in keyof T]: T[k][] | T[k]}

db/orm.js

@@ -8,20 +8,15 @@ const U = require("./orm-defs")
  * @template {keyof U.Models[Table]} Col
  * @param {Table} table
  * @param {Col[] | Col} cols
- * @param {Partial<U.ValueOrArray<U.Numberish<U.Models[Table]>>>} where
+ * @param {Partial<U.Models[Table]>} where
  * @param {string} [e]
  */
 function select(table, cols, where = {}, e = "") {
 	if (!Array.isArray(cols)) cols = [cols]
 	const parameters = []
 	const wheres = Object.entries(where).map(([col, value]) => {
-		if (Array.isArray(value)) {
-			parameters.push(...value)
-			return `"${col}" IN (` + Array(value.length).fill("?").join(", ") + ")"
-		} else {
 		parameters.push(value)
 		return `"${col}" = ?`
-		}
 	})
 	const whereString = wheres.length ? " WHERE " + wheres.join(" AND ") : ""
 	/** @type {U.Prepared<Pick<U.Models[Table], Col>>} */
@@ -49,8 +44,6 @@ class From {
 		/** @private */
 		this.cols = []
 		/** @private */
-		this.makeColsSafe = true
-		/** @private */
 		this.using = []
 		/** @private */
 		this.isPluck = false
@@ -85,12 +78,6 @@ class From {
 		return r
 	}
 
-	selectUnsafe(...cols) {
-		this.cols = cols
-		this.makeColsSafe = false
-		return this
-	}
-
 	/**
 	 * @template {Col} Select
 	 * @param {Select} col
@@ -113,7 +100,7 @@ class From {
 	}
 
 	/**
-	 * @param {Partial<U.Numberish<U.Models[Table]>>} conditions
+	 * @param {Partial<U.Models[Table]>} conditions
 	 */
 	where(conditions) {
 		const wheres = Object.entries(conditions).map(([col, value]) => {
@@ -125,8 +112,7 @@ class From {
 	}
 
 	prepare() {
-		if (this.makeColsSafe) this.cols = this.cols.map(k => `"${k}"`)
-		let sql = `SELECT ${this.cols.join(", ")} FROM ${this.tables[0]} `
+		let sql = `SELECT ${this.cols.map(k => `"${k}"`).join(", ")} FROM ${this.tables[0]} `
 		for (let i = 1; i < this.tables.length; i++) {
 			const table = this.tables[i]
 			const col = this.using[i-1]

db/orm.test.js

@@ -1,7 +1,7 @@
 // @ts-check
 
 const {test} = require("supertape")
-const data = require("../../test/data")
+const data = require("../test/data")
 
 const {db, select, from} = require("../passthrough")
 
@@ -30,11 +30,6 @@ test("orm: select: all, where and pluck works on multiple columns", t => {
 	t.deepEqual(names, ["cadence [they]"])
 })
 
-test("orm: select: in array works", t => {
-	const ids = select("emoji", "emoji_id", {name: ["online", "upstinky"]}).pluck().all()
-	t.deepEqual(ids, ["288858540888686602", "606664341298872324"])
-})
-
 test("orm: from: get pluck works", t => {
 	const guildID = from("guild_space").pluck("guild_id").and("WHERE space_id = ?").get("!jjWAGMeQdNrVZSSfvz:cadence.moe")
 	t.equal(guildID, data.guild.general.id)
@@ -56,15 +51,5 @@ test("orm: from: join direction works", t => {
 	const hasNoOwner = from("sim").join("sim_proxy", "user_id", "left").select("user_id", "proxy_owner_id").where({sim_name: "crunch_god"}).get()
 	t.deepEqual(hasNoOwner, {user_id: "820865262526005258", proxy_owner_id: null})
 	const hasNoOwnerInner = from("sim").join("sim_proxy", "user_id", "inner").select("user_id", "proxy_owner_id").where({sim_name: "crunch_god"}).get()
-	t.deepEqual(hasNoOwnerInner, undefined)
-})
-
-test("orm: select unsafe works (to select complex column names that can't be type verified)", t => {
-	const results = from("member_cache")
-		.join("member_power", "mxid")
-		.join("channel_room", "room_id") // only include rooms that are bridged
-		.and("where member_power.room_id = '*' and member_cache.power_level != member_power.power_level")
-		.selectUnsafe("mxid", "member_cache.room_id", "member_power.power_level")
-		.all()
-	t.equal(results[0].power_level, 100)
+	t.deepEqual(hasNoOwnerInner, null)
 })

discord/discord-command-handler.js

@@ -0,0 +1,273 @@
+// @ts-check
+
+const assert = require("assert").strict
+const util = require("util")
+const DiscordTypes = require("discord-api-types/v10")
+const reg = require("../matrix/read-registration")
+const {addbot} = require("../addbot")
+
+const {discord, sync, db, select} = require("../passthrough")
+/** @type {import("../matrix/api")}) */
+const api = sync.require("../matrix/api")
+/** @type {import("../matrix/file")} */
+const file = sync.require("../matrix/file")
+/** @type {import("../d2m/actions/create-space")} */
+const createSpace = sync.require("../d2m/actions/create-space")
+/** @type {import("./utils")} */
+const utils = sync.require("./utils")
+
+const PREFIX = "//"
+
+let buttons = []
+
+/**
+ * @param {string} channelID where to add the button
+ * @param {string} messageID where to add the button
+ * @param {string} emoji emoji to add as a button
+ * @param {string} userID only listen for responses from this user
+ * @returns {Promise<import("discord-api-types/v10").GatewayMessageReactionAddDispatchData>}
+ */
+async function addButton(channelID, messageID, emoji, userID) {
+	await discord.snow.channel.createReaction(channelID, messageID, emoji)
+	return new Promise(resolve => {
+		buttons.push({channelID, messageID, userID, resolve, created: Date.now()})
+	})
+}
+
+// Clear out old buttons every so often to free memory
+setInterval(() => {
+	const now = Date.now()
+	buttons = buttons.filter(b => now - b.created < 2*60*60*1000)
+}, 10*60*1000)
+
+/** @param {import("discord-api-types/v10").GatewayMessageReactionAddDispatchData} data */
+function onReactionAdd(data) {
+	const button = buttons.find(b => b.channelID === data.channel_id && b.messageID === data.message_id && b.userID === data.user_id)
+	if (button) {
+		buttons = buttons.filter(b => b !== button) // remove button data so it can't be clicked again
+		button.resolve(data)
+	}
+}
+
+/**
+ * @callback CommandExecute
+ * @param {DiscordTypes.GatewayMessageCreateDispatchData} message
+ * @param {DiscordTypes.APIGuildTextChannel} channel
+ * @param {DiscordTypes.APIGuild} guild
+ * @param {Partial<DiscordTypes.RESTPostAPIChannelMessageJSONBody>} [ctx]
+ */
+
+/**
+ * @typedef Command
+ * @property {string[]} aliases
+ * @property {(message: DiscordTypes.GatewayMessageCreateDispatchData, channel: DiscordTypes.APIGuildTextChannel, guild: DiscordTypes.APIGuild) => Promise<any>} execute
+ */
+
+/** @param {CommandExecute} execute */
+function replyctx(execute) {
+	/** @type {CommandExecute} */
+	return function(message, channel, guild, ctx = {}) {
+		ctx.message_reference = {
+			message_id: message.id,
+			channel_id: channel.id,
+			guild_id: guild.id,
+			fail_if_not_exists: false
+		}
+		return execute(message, channel, guild, ctx)
+	}
+}
+
+/** @type {Command[]} */
+const commands = [{
+	aliases: ["icon", "avatar", "roomicon", "roomavatar", "channelicon", "channelavatar"],
+	execute: replyctx(
+		async (message, channel, guild, ctx) => {
+			// Guard
+			const roomID = select("channel_room", "room_id", {channel_id: channel.id}).pluck().get()
+			if (!roomID) return discord.snow.channel.createMessage(channel.id, {
+				...ctx,
+				content: "This channel isn't bridged to the other side."
+			})
+
+			// Current avatar
+			const avatarEvent = await api.getStateEvent(roomID, "m.room.avatar", "")
+			const avatarURLParts = avatarEvent?.url.match(/^mxc:\/\/([^/]+)\/(\w+)$/)
+			let currentAvatarMessage =
+				( avatarURLParts ? `Current room-specific avatar: ${reg.ooye.server_origin}/_matrix/media/r0/download/${avatarURLParts[1]}/${avatarURLParts[2]}`
+				: "No avatar. Now's your time to strike. Use `//icon` again with a link or upload to set the room-specific avatar.")
+
+			// Next potential avatar
+			const nextAvatarURL = message.attachments.find(a => a.content_type?.startsWith("image/"))?.url || message.content.match(/https?:\/\/[^ ]+\.[^ ]+\.(?:png|jpg|jpeg|webp)\b/)?.[0]
+			let nextAvatarMessage =
+				( nextAvatarURL ? `\nYou want to set it to: ${nextAvatarURL}\nHit ✅ to make it happen.`
+				: "")
+
+			const sent = await discord.snow.channel.createMessage(channel.id, {
+				...ctx,
+				content: currentAvatarMessage + nextAvatarMessage
+			})
+
+			if (nextAvatarURL) {
+				addButton(channel.id, sent.id, "✅", message.author.id).then(async data => {
+					const mxcUrl = await file.uploadDiscordFileToMxc(nextAvatarURL)
+					await api.sendState(roomID, "m.room.avatar", "", {
+						url: mxcUrl
+					})
+					db.prepare("UPDATE channel_room SET custom_avatar = ? WHERE channel_id = ?").run(mxcUrl, channel.id)
+					await discord.snow.channel.createMessage(channel.id, {
+						...ctx,
+						content: "Your creation is unleashed. Any complaints will be redirected to Grelbo."
+					})
+				})
+			}
+		}
+	)
+}, {
+	aliases: ["invite"],
+	execute: replyctx(
+		async (message, channel, guild, ctx) => {
+			// Check guild is bridged
+			const spaceID = select("guild_space", "space_id", {guild_id: guild.id}).pluck().get()
+			const roomID = select("channel_room", "room_id", {channel_id: channel.id}).pluck().get()
+			if (!spaceID || !roomID) return discord.snow.channel.createMessage(channel.id, {
+				...ctx,
+				content: "This server isn't bridged to Matrix, so you can't invite Matrix users."
+			})
+
+			// Check CREATE_INSTANT_INVITE permission
+			assert(message.member)
+			const guildPermissions = utils.getPermissions(message.member.roles, guild.roles)
+			if (!(guildPermissions & BigInt(1))) {
+				return discord.snow.channel.createMessage(channel.id, {
+					...ctx,
+					content: "You don't have permission to invite people to this Discord server."
+				})
+			}
+
+			// Guard against accidental mentions instead of the MXID
+			if (message.content.match(/<[@#:].*>/)) return discord.snow.channel.createMessage(channel.id, {
+				...ctx,
+				content: "You have to say the Matrix ID of the person you want to invite, but you mentioned a Discord user in your message.\nOne way to fix this is by writing `` ` `` backticks `` ` `` around the Matrix ID."
+			})
+
+			// Get named MXID
+			const mxid = message.content.match(/@([^:]+):([a-z0-9:-]+\.[a-z0-9.:-]+)/)?.[0]
+			if (!mxid) return discord.snow.channel.createMessage(channel.id, {
+				...ctx,
+				content: "You have to say the Matrix ID of the person you want to invite. Matrix IDs look like this: `@username:example.org`"
+			})
+
+			// Check for existing invite to the space
+			let spaceMember
+			try {
+				spaceMember = await api.getStateEvent(spaceID, "m.room.member", mxid)
+			} catch (e) {}
+			if (spaceMember && spaceMember.membership === "invite") {
+				return discord.snow.channel.createMessage(channel.id, {
+					...ctx,
+					content: `\`${mxid}\` already has an invite, which they haven't accepted yet.`
+				})
+			}
+
+			// Invite Matrix user if not in space
+			if (!spaceMember || spaceMember.membership !== "join") {
+				await api.inviteToRoom(spaceID, mxid)
+				return discord.snow.channel.createMessage(channel.id, {
+					...ctx,
+					content: `You invited \`${mxid}\` to the server.`
+				})
+			}
+
+			// The Matrix user *is* in the space, maybe we want to invite them to this channel?
+			let roomMember
+			try {
+				roomMember = await api.getStateEvent(roomID, "m.room.member", mxid)
+			} catch (e) {}
+			if (!roomMember || (roomMember.membership !== "join" && roomMember.membership !== "invite")) {
+				const sent = await discord.snow.channel.createMessage(channel.id, {
+					...ctx,
+					content: `\`${mxid}\` is already in this server. Would you like to additionally invite them to this specific channel?\nHit ✅ to make it happen.`
+				})
+				return addButton(channel.id, sent.id, "✅", message.author.id).then(async data => {
+					await api.inviteToRoom(roomID, mxid)
+					await discord.snow.channel.createMessage(channel.id, {
+						...ctx,
+						content: `You invited \`${mxid}\` to the channel.`
+					})
+				})
+			}
+
+			// The Matrix user *is* in the space and in the channel.
+			await discord.snow.channel.createMessage(channel.id, {
+				...ctx,
+				content: `\`${mxid}\` is already in this server and this channel.`
+			})
+		}
+	)
+}, {
+	aliases: ["addbot"],
+	execute: replyctx(
+		async (message, channel, guild, ctx) => {
+			return discord.snow.channel.createMessage(channel.id, {
+				...ctx,
+				content: addbot()
+			})
+		}
+	)
+}, {
+	aliases: ["privacy", "discoverable", "publish", "published"],
+	execute: replyctx(
+		async (message, channel, guild, ctx) => {
+			const current = select("guild_space", "privacy_level", {guild_id: guild.id}).pluck().get()
+			if (current == null) {
+				return discord.snow.channel.createMessage(channel.id, {
+					...ctx,
+					content: "This server isn't bridged to the other side."
+				})
+			}
+
+			const levels = ["invite", "link", "directory"]
+			const level = levels.findIndex(x => message.content.includes(x))
+			if (level === -1) {
+				return discord.snow.channel.createMessage(channel.id, {
+					...ctx,
+					content: "**Usage: `//privacy <level>`**. This will set who can join the space on Matrix-side. There are three levels:"
+						+ "\n`invite`: Can only join with a direct in-app invite from another Matrix user, or the //invite command."
+						+ "\n`link`: Matrix links can be created and shared like Discord's invite links. `invite` features also work."
+						+ "\n`directory`: Publishes to the Matrix in-app directory, like Server Discovery. Preview enabled. `invite` and `link` also work."
+						+ `\n**Current privacy level: \`${levels[current]}\`**`
+				})
+			}
+
+			assert(message.member)
+			const guildPermissions = utils.getPermissions(message.member.roles, guild.roles)
+			if (guild.owner_id !== message.author.id && !(guildPermissions & BigInt(0x28))) { // MANAGE_GUILD | ADMINISTRATOR
+				return discord.snow.channel.createMessage(channel.id, {
+					...ctx,
+					content: "You don't have permission to change the privacy level. You need Manage Server or Administrator."
+				})
+			}
+
+			db.prepare("UPDATE guild_space SET privacy_level = ? WHERE guild_id = ?").run(level, guild.id)
+			discord.snow.channel.createMessage(channel.id, {
+				...ctx,
+				content: `Privacy level updated to \`${levels[level]}\`. Changes will apply shortly.`
+			})
+			await createSpace.syncSpaceFully(guild.id)
+		}
+	)
+}]
+
+/** @type {CommandExecute} */
+async function execute(message, channel, guild) {
+	if (!message.content.startsWith(PREFIX)) return
+	const words = message.content.slice(PREFIX.length).split(" ")
+	const commandName = words[0]
+	const command = commands.find(c => c.aliases.includes(commandName))
+	if (!command) return
+
+	await command.execute(message, channel, guild)
+}
+
+module.exports.execute = execute
+module.exports.onReactionAdd = onReactionAdd

discord/utils.js

@@ -0,0 +1,74 @@
+// @ts-check
+
+const DiscordTypes = require("discord-api-types/v10")
+
+const EPOCH = 1420070400000
+
+/**
+ * @param {string[]} userRoles
+ * @param {DiscordTypes.APIGuild["roles"]} guildRoles
+ * @param {string} [userID]
+ * @param {DiscordTypes.APIGuildChannel["permission_overwrites"]} [channelOverwrites]
+ */
+function getPermissions(userRoles, guildRoles, userID, channelOverwrites) {
+	let allowed = BigInt(0)
+	let everyoneID
+	// Guild allows
+	for (const role of guildRoles) {
+		if (role.name === "@everyone") {
+			allowed |= BigInt(role.permissions)
+			everyoneID = role.id
+		}
+		if (userRoles.includes(role.id)) {
+			allowed |= BigInt(role.permissions)
+		}
+	}
+
+	if (channelOverwrites) {
+		/** @type {((overwrite: Required<DiscordTypes.APIGuildChannel>["permission_overwrites"][0]) => any)[]} */
+		const actions = [
+			// Channel @everyone deny
+			overwrite => overwrite.id === everyoneID && (allowed &= ~BigInt(overwrite.deny)),
+			// Channel @everyone allow
+			overwrite => overwrite.id === everyoneID && (allowed |= BigInt(overwrite.allow)),
+			// Role deny
+			overwrite => userRoles.includes(overwrite.id) && (allowed &= ~BigInt(overwrite.deny)),
+			// Role allow
+			overwrite => userRoles.includes(overwrite.id) && (allowed |= BigInt(overwrite.allow)),
+			// User deny
+			overwrite => overwrite.id === userID && (allowed &= ~BigInt(overwrite.deny)),
+			// User allow
+			overwrite => overwrite.id === userID && (allowed |= BigInt(overwrite.allow))
+		]
+		for (let i = 0; i < actions.length; i++) {
+			for (const overwrite of channelOverwrites) {
+				actions[i](overwrite)
+			}
+		}
+	}
+	return allowed
+}
+
+/**
+ * Command interaction responses have a webhook_id for some reason, but still have real author info of a real bot user in the server.
+ * @param {DiscordTypes.APIMessage} message
+ */
+function isWebhookMessage(message) {
+	const isInteractionResponse = message.type === 20
+	return message.webhook_id && !isInteractionResponse
+}
+
+/** @param {string} snowflake */
+function snowflakeToTimestampExact(snowflake) {
+	return Number(BigInt(snowflake) >> 22n) + EPOCH
+}
+
+/** @param {number} timestamp */
+function timestampToSnowflakeInexact(timestamp) {
+	return String((timestamp - EPOCH) * 2**22)
+}
+
+module.exports.getPermissions = getPermissions
+module.exports.isWebhookMessage = isWebhookMessage
+module.exports.snowflakeToTimestampExact = snowflakeToTimestampExact
+module.exports.timestampToSnowflakeInexact = timestampToSnowflakeInexact

discord/utils.test.js

@@ -0,0 +1,84 @@
+const {test} = require("supertape")
+const data = require("../test/data")
+const utils = require("./utils")
+
+test("is webhook message: identifies bot interaction response as not a message", t => {
+	t.equal(utils.isWebhookMessage(data.interaction_message.thinking_interaction), false)
+})
+
+test("is webhook message: identifies webhook interaction response as not a message", t => {
+	t.equal(utils.isWebhookMessage(data.interaction_message.thinking_interaction_without_bot_user), false)
+})
+
+test("is webhook message: identifies webhook message as a message", t => {
+	t.equal(utils.isWebhookMessage(data.special_message.bridge_echo_webhook), true)
+})
+
+test("discord utils: converts snowflake to timestamp", t => {
+	t.equal(utils.snowflakeToTimestampExact("86913608335773696"), 1440792219004)
+})
+
+test("discord utils: converts timestamp to snowflake", t => {
+	t.match(utils.timestampToSnowflakeInexact(1440792219004), /^869136083357.....$/)
+})
+
+test("getPermissions: channel overwrite to allow role works", t => {
+	const guildRoles = [
+		{
+			version: 1695412489043,
+			unicode_emoji: null,
+			tags: {},
+			position: 0,
+			permissions: "559623605571137",
+			name: "@everyone",
+			mentionable: false,
+			managed: false,
+			id: "1154868424724463687",
+			icon: null,
+			hoist: false,
+			flags: 0,
+			color: 0
+		},
+		{
+			version: 1695412604262,
+			unicode_emoji: null,
+			tags: { bot_id: "466378653216014359" },
+			position: 1,
+			permissions: "536995904",
+			name: "PluralKit",
+			mentionable: false,
+			managed: true,
+			id: "1154868908336099444",
+			icon: null,
+			hoist: false,
+			flags: 0,
+			color: 0
+		},
+		{
+			version: 1698778936921,
+			unicode_emoji: null,
+			tags: {},
+			position: 1,
+			permissions: "536870912",
+			name: "web hookers",
+			mentionable: false,
+			managed: false,
+			id: "1168988246680801360",
+			icon: null,
+			hoist: false,
+			flags: 0,
+			color: 0
+		}
+	]
+	const userRoles = [ "1168988246680801360" ]
+	const userID = "684280192553844747"
+	const overwrites = [
+		{ type: 0, id: "1154868908336099444", deny: "0", allow: "1024" },
+		{ type: 0, id: "1154868424724463687", deny: "1024", allow: "0" },
+		{ type: 0, id: "1168988246680801360", deny: "0", allow: "1024" },
+		{ type: 1, id: "353373325575323648", deny: "0", allow: "1024" }
+	]
+	const permissions = utils.getPermissions(userRoles, guildRoles, userID, overwrites)
+	const want = BigInt(1 << 10 | 1 << 16)
+	t.equal((permissions & want), want)
+})

docs/self-service-room-creation-rules.md

@@ -1,74 +0,0 @@
-# Self-service room creation rules
-
-Before version 3 of Out Of Your Element, new Matrix rooms would be created on-demand when a Discord channel is spoken in for the first time. This has worked pretty well.
-
-This is done through functions like ensureRoom and ensureSpace in actions:
-
-```js
-async function sendMessage(message, channel, guild, row) {
-	const roomID = await createRoom.ensureRoom(message.channel_id)
-	...
-}
-
-/**
- * Ensures the room exists. If it doesn't, creates the room with an accurate initial state.
- * @param {string} channelID
- * @returns {Promise<string>} Matrix room ID
- */
-function ensureRoom(channelID) {
-	return _syncRoom(channelID, /* shouldActuallySync */ false) /* calls ensureSpace */
-}
-
-/**
- * Ensures the space exists. If it doesn't, creates the space with an accurate initial state.
- * @param {DiscordTypes.APIGuild} guild
- * @returns {Promise<string>} Matrix space ID
- */
-function ensureSpace(guild) {
-	return _syncSpace(guild, /* shouldActuallySync */ false)
-}
-```
-
-With the introduction of self-service mode, we still want to retain this as a possible mode of operation, since some people prefer to have OOYE handle this administrative work. However, other people prefer to manage the links between channels and rooms themselves, and have control over what new rooms get linked up to.
-
-Visibly, this is managed through the web interface. The web interface lets moderators enable/disable auto-creation of new rooms, as well as set which channels and rooms are linked together.
-
-There is a small complication. Not only are Matrix rooms created automatically, their Matrix spaces are also created automatically during room sync: ensureRoom calls ensureSpace. If a user opts in to self-service mode by clicking the specific button in the web portal, we must ensure the _space is not created automatically either,_ because the Matrix user will provide a space to link to.
-
-To solve this, we need a way to suppress specific guilds from having auto-created spaces. The natural way to represent this is a column on guild_space, but that doesn't work, because each guild_space row requires a guild and space to be linked, and we _don't want_ them to be linked.
-
-So, internally, OOYE keeps track of this through a new table:
-
-```sql
-CREATE TABLE "guild_active" (
-	"guild_id"	TEXT NOT NULL, -- only guilds that are bridged are present in this table
-	"autocreate"	INTEGER NOT NULL, -- 0 or 1
-	PRIMARY KEY("guild_id")
-) WITHOUT ROWID;
-```
-
-There is one more complication. When adding a Discord bot through web oauth with a redirect_uri, Discord adds the bot to the server normally, _then_ redirects back to OOYE, and only then does OOYE know which guild the bot was just added to. So, for a short time between the bot being added and the user being redirected, OOYE might receive Discord events in the server before it has the chance to create the guild_active database row.
-
-So to prevent this, self-service behaviour needs to be an implicit default, and users must firmly choose one system or another to begin using OOYE. It is important for me to design this in a way that doesn't force users to do any extra work or make a choice they don't understand to keep the pre-v3 behaviour.
-
-So there will be 3 states of whether a guild is self-service or not. At first, it could be absent from the table, in which case events for it will be dropped. Or it could be in the table with autocomplete = 0, in which case only rooms that already exist in channel_room will have messages bridged. Or it could have autocomplete = 1, in which case Matrix rooms will be created as needed, as per the pre-v3 behaviour.
-
-| Auto-create | Meaning                  |
-| --          | ------------             |
-| 😶‍🌫️         | Unbridged - waiting      |
-| ❌         | Bridged - self-service   |
-| ✅         | Bridged - auto-create    |
-
-Pressing buttons on web or using the /invite command on a guild will insert a row into guild_active, allowing it to be bridged.
-
-One more thing. Before v3, when a Matrix room was autocreated it would autocreate the space as well, if it needed to. But now, since nothing will be created until the user takes an action, the guild will always be created directly in response to a request. So room creation can now trust that the guild exists already.
-
-So here's all the technical changes needed to support self-service in v3:
-
-- New guild_active table showing whether, and how, a guild is bridged.
-- When /invite command is used, INSERT OR IGNORE INTO state 1 and ensureRoom + ensureSpace.
-- When bot is added through "easy mode" web button, REPLACE INTO state 1 and ensureSpace.
-- When bot is added through "self-service" web button, REPLACE INTO state 0.
-- Event dispatcher will only ensureRoom if the guild_active state is 1.
-- createRoom can trust that the space exists because we check that in a calling function.
-- createRoom will only create other dependencies if the guild is autocreate.

m2d/actions/channel-webhook.js

@@ -44,13 +44,8 @@ async function ensureWebhook(channelID, forceCreate = false) {
  */
 async function withWebhook(channelID, callback) {
 	const webhook = await ensureWebhook(channelID, false)
-	return callback(webhook).catch(async e => {
-		if (e.message === `{"message": "Unknown Webhook", "code": 10015}`) { // pathetic error handling from SnowTransfer
-			// Our webhook is gone. Maybe somebody deleted it, or removed and re-added OOYE from the guild.
-			const newWebhook = await ensureWebhook(channelID, true)
-			return callback(newWebhook) // not caught; if the error happens again just throw it instead of looping
-		}
-
+	return callback(webhook).catch(e => {
+		// TODO: check if the error was webhook-related and if webhook.created === false, then: const webhook = ensureWebhook(channelID, true); return callback(webhook)
 		throw e
 	})
 }
@@ -62,7 +57,7 @@ async function withWebhook(channelID, callback) {
  */
 async function sendMessageWithWebhook(channelID, data, threadID) {
 	const result = await withWebhook(channelID, async webhook => {
-		return discord.snow.webhook.executeWebhook(webhook.id, webhook.token, data, {wait: true, thread_id: threadID})
+		return discord.snow.webhook.executeWebhook(webhook.id, webhook.token, data, {wait: true, thread_id: threadID, disableEveryone: true})
 	})
 	return result
 }

m2d/actions/emoji-sheet.js

@@ -8,8 +8,6 @@ const {sync} = require("../../passthrough")
 
 /** @type {import("../converters/emoji-sheet")} */
 const emojiSheetConverter = sync.require("../converters/emoji-sheet")
-/** @type {import("../../matrix/api")} */
-const api = sync.require("../../matrix/api")
 
 /**
  * Downloads the emoji from the web and converts to uncompressed PNG data.
@@ -18,12 +16,16 @@ const api = sync.require("../../matrix/api")
  */
 async function getAndConvertEmoji(mxc) {
 	const abortController = new AbortController()
+
+	const url = utils.getPublicUrlForMxc(mxc)
+	assert(url)
+
 	/** @type {import("node-fetch").Response} */
 	// If it turns out to be a GIF, we want to abandon the connection without downloading the whole thing.
 	// If we were using connection pooling, we would be forced to download the entire GIF.
 	// So we set no agent to ensure we are not connection pooling.
 	// @ts-ignore the signal is slightly different from the type it wants (still works fine)
-	const res = await api.getMedia(mxc, {agent: false, signal: abortController.signal})
+	const res = await fetch(url, {agent: false, signal: abortController.signal})
 	return emojiSheetConverter.convertImageStream(res.body, () => {
 		abortController.abort()
 		res.body.pause()

m2d/actions/redact.js

@@ -13,10 +13,10 @@ const utils = sync.require("../converters/utils")
  */
 async function deleteMessage(event) {
 	const rows = from("event_message").join("message_channel", "message_id").select("channel_id", "message_id").where({event_id: event.redacts}).all()
-	db.prepare("DELETE FROM event_message WHERE event_id = ?").run(event.redacts)
+	db.prepare("DELETE FROM event_message WHERE event_id = ?").run(event.event_id)
 	for (const row of rows) {
 		db.prepare("DELETE FROM message_channel WHERE message_id = ?").run(row.message_id)
-		await discord.snow.channel.deleteMessage(row.channel_id, row.message_id, event.content.reason)
+		discord.snow.channel.deleteMessage(row.channel_id, row.message_id, event.content.reason)
 	}
 }
 
@@ -25,6 +25,7 @@ async function deleteMessage(event) {
  */
 async function removeReaction(event) {
 	const hash = utils.getEventIDHash(event.redacts)
+	// TODO: this works but fix the type
 	const row = from("reaction").join("message_channel", "message_id").select("channel_id", "message_id", "encoded_emoji").where({hashed_event_id: hash}).get()
 	if (!row) return
 	await discord.snow.channel.deleteReactionSelf(row.channel_id, row.message_id, row.encoded_emoji)

m2d/actions/send-event.js

@@ -17,13 +17,11 @@ const eventToMessage = sync.require("../converters/event-to-message")
 const api = sync.require("../../matrix/api")
 /** @type {import("../../d2m/actions/register-user")} */
 const registerUser = sync.require("../../d2m/actions/register-user")
-/** @type {import("../../d2m/actions/edit-message")} */
-const editMessage = sync.require("../../d2m/actions/edit-message")
 /** @type {import("../actions/emoji-sheet")} */
 const emojiSheet = sync.require("../actions/emoji-sheet")
 
 /**
- * @param {DiscordTypes.RESTPostAPIWebhookWithTokenJSONBody & {files?: {name: string, file: Buffer | Readable}[], pendingFiles?: ({name: string, mxc: string} | {name: string, mxc: string, key: string, iv: string} | {name: string, buffer: Buffer | Readable})[]}} message
+ * @param {DiscordTypes.RESTPostAPIWebhookWithTokenJSONBody & {files?: {name: string, file: Buffer | Readable}[], pendingFiles?: ({name: string, url: string} | {name: string, url: string, key: string, iv: string} | {name: string, buffer: Buffer | Readable})[]}} message
  * @returns {Promise<DiscordTypes.RESTPostAPIWebhookWithTokenJSONBody & {files?: {name: string, file: Buffer | Readable}[]}>}
  */
 async function resolvePendingFiles(message) {
@@ -39,7 +37,7 @@ async function resolvePendingFiles(message) {
 			// Encrypted file
 			const d = crypto.createDecipheriv("aes-256-ctr", Buffer.from(p.key, "base64url"), Buffer.from(p.iv, "base64url"))
 			// @ts-ignore
-			await api.getMedia(p.mxc).then(res => res.body.pipe(d))
+			fetch(p.url).then(res => res.body.pipe(d))
 			return {
 				name: p.name,
 				file: d
@@ -47,7 +45,7 @@ async function resolvePendingFiles(message) {
 		} else {
 			// Unencrypted file
 			/** @type {Readable} */ // @ts-ignore
-			const body = await api.getMedia(p.mxc).then(res => res.body)
+			const body = await fetch(p.url).then(res => res.body)
 			return {
 				name: p.name,
 				file: body
@@ -79,7 +77,7 @@ async function sendEvent(event) {
 
 	// no need to sync the matrix member to the other side. but if I did need to, this is where I'd do it
 
-	let {messagesToEdit, messagesToSend, messagesToDelete, ensureJoined} = await eventToMessage.eventToMessage(event, guild, {api, snow: discord.snow, mxcDownloader: emojiSheet.getAndConvertEmoji})
+	let {messagesToEdit, messagesToSend, messagesToDelete, ensureJoined} = await eventToMessage.eventToMessage(event, guild, {api, snow: discord.snow, fetch, mxcDownloader: emojiSheet.getAndConvertEmoji})
 
 	messagesToEdit = await Promise.all(messagesToEdit.map(async e => {
 		e.message = await resolvePendingFiles(e.message)
@@ -90,7 +88,6 @@ async function sendEvent(event) {
 	}))
 
 	let eventPart = 0 // 0 is primary, 1 is supporting
-	const pendingEdits = []
 
 	/** @type {DiscordTypes.APIMessage[]} */
 	const messageResponses = []
@@ -114,33 +111,12 @@ async function sendEvent(event) {
 
 		eventPart = 1
 		messageResponses.push(messageResponse)
-
-		/*
-			If the Discord system has a cached link preview embed for one of the links just sent,
-			it will be instantly added as part of `embeds` and there won't be a MESSAGE_UPDATE.
-			To reflect the generated embed back to Matrix, we pretend the message was updated right away.
-		*/
-		const sentEmbedsCount = message.embeds?.length || 0
-		if (messageResponse.embeds.length > sentEmbedsCount) {
-			// not awaiting here because requests to Matrix shouldn't block requests to Discord
-			pendingEdits.push(() =>
-				// @ts-ignore this is a valid message edit payload
-				editMessage.editMessage({
-					id: messageResponse.id,
-					channel_id: messageResponse.channel_id,
-					guild_id: guild.id,
-					embeds: messageResponse.embeds
-				}, guild, null)
-			)
-		}
 	}
 
 	for (const user of ensureJoined) {
 		registerUser.ensureSimJoined(user, event.room_id)
 	}
 
-	await Promise.all(pendingEdits.map(f => f())) // `await` will propagate any errors during editing
-
 	return messageResponses
 }
 

m2d/converters/emoji-sheet.js

@@ -3,8 +3,8 @@
 const assert = require("assert").strict
 const {pipeline} = require("stream").promises
 const sharp = require("sharp")
-const {GIFrame} = require("@cloudrac3r/giframe")
-const {PNG} = require("@cloudrac3r/pngjs")
+const {GIFrame} = require("giframe")
+const {PNG} = require("pngjs")
 const streamMimeType = require("stream-mime-type")
 
 const SIZE = 48
@@ -81,10 +81,9 @@ async function convertImageStream(streamIn, stopStream) {
 				giframe.feed(chunk)
 			})
 			const frame = await giframe.getFrame()
-			const pixels = Uint8Array.from(frame.pixels)
 			stopStream()
 
-			const buffer = await sharp(pixels, {raw: {width: frame.width, height: frame.height, channels: 4}})
+			const buffer = await sharp(frame.pixels, {raw: {width: frame.width, height: frame.height, channels: 4}})
 				.resize(SIZE, SIZE, {fit: "contain", background: {r: 0, g: 0, b: 0, alpha: 0}})
 				.png({compressionLevel: 0})
 				.toBuffer({resolveWithObject: true})

m2d/converters/event-to-message.js

@@ -4,7 +4,7 @@ const Ty = require("../../types")
 const DiscordTypes = require("discord-api-types/v10")
 const {Readable} = require("stream")
 const chunk = require("chunk-text")
-const TurndownService = require("@cloudrac3r/turndown")
+const TurndownService = require("turndown")
 const domino = require("domino")
 const assert = require("assert").strict
 const entities = require("entities")
@@ -15,8 +15,6 @@ const {sync, db, discord, select, from} = passthrough
 const mxUtils = sync.require("../converters/utils")
 /** @type {import("../../discord/utils")} */
 const dUtils = sync.require("../../discord/utils")
-/** @type {import("../../matrix/file")} */
-const file = sync.require("../../matrix/file")
 /** @type {import("./emoji-sheet")} */
 const emojiSheet = sync.require("./emoji-sheet")
 
@@ -56,17 +54,16 @@ const turndownService = new TurndownService({
  */
 // @ts-ignore bad type from turndown
 turndownService.escape = function (string) {
-	return string.replace(/\s+|\S+/g, part => { // match chunks of spaces or non-spaces
-		if (part.match(/\s/)) return part // don't process spaces
-
-		if (part.match(/^https?:\/\//)) {
-			return part
+	const escapedWords = string.split(" ").map(word => {
+		if (word.match(/^https?:\/\//)) {
+			return word
 		} else {
 			return markdownEscapes.reduce(function (accumulator, escape) {
 				return accumulator.replace(escape[0], escape[1])
-			}, part)
+		 	}, word)
 		}
 	})
+	return escapedWords.join(" ")
 }
 
 turndownService.remove("mx-reply")
@@ -131,7 +128,7 @@ turndownService.addRule("inlineLink", {
 		const href = node.getAttribute("href")
 		content = content.replace(/ @.*/, "")
 		if (href === content) return href
-		if (decodeURIComponent(href).startsWith("https://matrix.to/#/@") && content[0] !== "@") content = "@" + content
+		if (href.startsWith("https://matrix.to/#/@") && content[0] !== "@") content = "@" + content
 		return "[" + content + "](" + href + ")"
 	}
 })
@@ -208,10 +205,11 @@ function getCodeContent(preCode) {
  */
 function convertEmoji(mxcUrl, nameForGuess, allowSpriteSheetIndicator, allowLink) {
 	// Get the known emoji from the database.
-	if (mxcUrl) var row = select("emoji", ["emoji_id", "name", "animated"], {mxc_url: mxcUrl}).get()
+	let row
+	if (mxcUrl) row = select("emoji", ["emoji_id", "name", "animated"], {mxc_url: mxcUrl}).get()
 	// Now we have to search all servers to see if we're able to send this emoji.
 	if (row) {
-		const found = [...discord.guilds.values()].find(g => g.emojis.find(e => e.id === row?.emoji_id))
+		const found = [...discord.guilds.values()].find(g => g.emojis.find(e => e.id === row.id))
 		if (!found) row = null
 	}
 	// Or, if we don't have an emoji right now, we search for the name instead.
@@ -221,7 +219,7 @@ function convertEmoji(mxcUrl, nameForGuess, allowSpriteSheetIndicator, allowLink
 			/** @type {{name: string, id: string, animated: number}[]} */
 			// @ts-ignore
 			const emojis = guild.emojis
-			const found = emojis.find(e => e.name?.toLowerCase() === nameForGuessLower)
+			const found = emojis.find(e => e.id === row?.id || e.name?.toLowerCase() === nameForGuessLower)
 			if (found) {
 				row = {
 					animated: found.animated,
@@ -305,7 +303,7 @@ function getUserOrProxyOwnerID(mxid) {
  * This function will strip them from the content and generate the correct pending file of the sprite sheet.
  * @param {string} content
  * @param {{id: string, name: string}[]} attachments
- * @param {({name: string, mxc: string} | {name: string, mxc: string, key: string, iv: string} | {name: string, buffer: Buffer})[]} pendingFiles
+ * @param {({name: string, url: string} | {name: string, url: string, key: string, iv: string} | {name: string, buffer: Buffer})[]} pendingFiles
  * @param {(mxc: string) => Promise<Buffer | undefined>} mxcDownloader function that will download the mxc URLs and convert to uncompressed PNG data. use `getAndConvertEmoji` or a mock.
  */
 async function uploadEndOfMessageSpriteSheet(content, attachments, pendingFiles, mxcDownloader) {
@@ -330,7 +328,7 @@ async function uploadEndOfMessageSpriteSheet(content, attachments, pendingFiles,
  */
 async function handleRoomOrMessageLinks(input, di) {
 	let offset = 0
-	for (const match of [...input.matchAll(/("?https:\/\/matrix.to\/#\/(![^"/, ?)]+)(?:\/(\$[^"/ ?)]+))?(?:\?[^",:!? )]*?)?)(">|[,<\n )]|$)/g)]) {
+	for (const match of [...input.matchAll(/("?https:\/\/matrix.to\/#\/(![^"/, ?)]+)(?:\/(\$[^"/ ?)]+))?(?:\?[^",:!? )]*)?)(">|[, )]|$)/g)]) {
 		assert(typeof match.index === "number")
 		const [_, attributeValue, roomID, eventID, endMarker] = match
 		let result
@@ -386,35 +384,19 @@ async function handleRoomOrMessageLinks(input, di) {
 
 /**
  * @param {string} content
- * @param {string} senderMxid
- * @param {string} roomID
  * @param {DiscordTypes.APIGuild} guild
- * @param {{api: import("../../matrix/api"), snow: import("snowtransfer").SnowTransfer}} di
+ * @param {{api: import("../../matrix/api"), snow: import("snowtransfer").SnowTransfer, fetch: import("node-fetch")["default"]}} di
  */
-async function checkWrittenMentions(content, senderMxid, roomID, guild, di) {
+async function checkWrittenMentions(content, guild, di) {
 	let writtenMentionMatch = content.match(/(?:^|[^"[<>/A-Za-z0-9])@([A-Za-z][A-Za-z0-9._\[\]\(\)-]+):?/d) // /d flag for indices requires node.js 16+
 	if (writtenMentionMatch) {
-		if (writtenMentionMatch[1] === "room") { // convert @room to @everyone
-			const powerLevels = await di.api.getStateEvent(roomID, "m.room.power_levels", "")
-			const userPower = powerLevels.users?.[senderMxid] || 0
-			if (userPower >= powerLevels.notifications?.room) {
-				return {
-					// @ts-ignore - typescript doesn't know about indices yet
-					content: content.slice(0, writtenMentionMatch.indices[1][0]-1) + `@everyone` + content.slice(writtenMentionMatch.indices[1][1]),
-					ensureJoined: [],
-					allowedMentionsParse: ["everyone"]
-				}
-			}
-		} else {
 		const results = await di.snow.guild.searchGuildMembers(guild.id, {query: writtenMentionMatch[1]})
 		if (results[0]) {
 			assert(results[0].user)
 			return {
 				// @ts-ignore - typescript doesn't know about indices yet
 				content: content.slice(0, writtenMentionMatch.indices[1][0]-1) + `<@${results[0].user.id}>` + content.slice(writtenMentionMatch.indices[1][1]),
-					ensureJoined: [results[0].user],
-					allowedMentionsParse: []
-				}
+				ensureJoined: results[0].user
 			}
 		}
 	}
@@ -440,12 +422,14 @@ const attachmentEmojis = new Map([
 /**
  * @param {Ty.Event.Outer_M_Room_Message | Ty.Event.Outer_M_Room_Message_File | Ty.Event.Outer_M_Sticker | Ty.Event.Outer_M_Room_Message_Encrypted_File} event
  * @param {import("discord-api-types/v10").APIGuild} guild
- * @param {{api: import("../../matrix/api"), snow: import("snowtransfer").SnowTransfer, mxcDownloader: (mxc: string) => Promise<Buffer | undefined>}} di simple-as-nails dependency injection for the matrix API
+ * @param {{api: import("../../matrix/api"), snow: import("snowtransfer").SnowTransfer, fetch: import("node-fetch")["default"], mxcDownloader: (mxc: string) => Promise<Buffer | undefined>}} di simple-as-nails dependency injection for the matrix API
  */
 async function eventToMessage(event, guild, di) {
+	/** @type {(DiscordTypes.RESTPostAPIWebhookWithTokenJSONBody & {files?: {name: string, file: Buffer | Readable}[]})[]} */
+	let messages = []
+
 	let displayName = event.sender
 	let avatarURL = undefined
-	const allowedMentionsParse = ["users", "roles"]
 	/** @type {string[]} */
 	let messageIDsToEdit = []
 	let replyLine = ""
@@ -466,7 +450,7 @@ async function eventToMessage(event, guild, di) {
 
 	let content = event.content.body // ultimate fallback
 	const attachments = []
-	/** @type {({name: string, mxc: string} | {name: string, mxc: string, key: string, iv: string} | {name: string, buffer: Buffer})[]} */
+	/** @type {({name: string, url: string} | {name: string, url: string, key: string, iv: string} | {name: string, buffer: Buffer})[]} */
 	const pendingFiles = []
 	/** @type {DiscordTypes.APIUser[]} */
 	const ensureJoined = []
@@ -542,7 +526,7 @@ async function eventToMessage(event, guild, di) {
 							.replace(/<span [^>]*data-mx-spoiler\b[^>]*>.*?<\/span>/g, "[spoiler]") // Good enough method of removing spoiler content. (I don't want to break out the HTML parser unless I have to.)
 							.replace(/<[^>]+>/g, "") // Completely strip all HTML tags and formatting.
 					), 50)
-				replyLine = "-# > " + contentPreviewChunks[0]
+				replyLine = "> " + contentPreviewChunks[0]
 				if (contentPreviewChunks.length > 1) replyLine = replyLine.replace(/[,.']$/, "") + "..."
 				replyLine += "\n"
 				return
@@ -566,7 +550,7 @@ async function eventToMessage(event, guild, di) {
 					assert(match)
 					senderName = match[1]
 				}
-				replyLine += `**Ⓜ${senderName}**`
+				replyLine += `Ⓜ️**${senderName}**`
 			}
 			// If the event has been edited, the homeserver will include the relation in `unsigned`.
 			if (repliedToEvent.unsigned?.["m.relations"]?.["m.replace"]?.content?.["m.new_content"]) {
@@ -593,18 +577,17 @@ async function eventToMessage(event, guild, di) {
 					return convertEmoji(mxcUrlMatch?.[1], titleTextMatch?.[1], false, false)
 				})
 				repliedToContent = repliedToContent.replace(/<[^:>][^>]*>/g, "") // Completely strip all HTML tags and formatting.
-				repliedToContent = repliedToContent.replace(/\bhttps?:\/\/[^ )]*/g, "<$&>")
 				repliedToContent = entities.decodeHTML5Strict(repliedToContent) // Remove entities like &amp; &quot;
 				const contentPreviewChunks = chunk(repliedToContent, 50)
 				if (contentPreviewChunks.length) {
-					contentPreview = ": " + contentPreviewChunks[0]
+					contentPreview = ":\n> " + contentPreviewChunks[0]
 					if (contentPreviewChunks.length > 1) contentPreview = contentPreview.replace(/[,.']$/, "") + "..."
 				} else {
 					console.log("Unable to generate reply preview for this replied-to event because we stripped all of it:", repliedToEvent)
 					contentPreview = ""
 				}
 			}
-			replyLine = `-# > ${replyLine}${contentPreview}\n`
+			replyLine = `> ${replyLine}${contentPreview}\n`
 		})()
 
 		if (event.content.format === "org.matrix.custom.html" && event.content.formatted_body) {
@@ -676,18 +659,17 @@ async function eventToMessage(event, guild, di) {
 				for (; node; node = node.nextSibling) {
 					// Check written mentions
 					if (node.nodeType === 3 && node.nodeValue.includes("@") && !nodeIsChildOf(node, ["A", "CODE", "PRE"])) {
-						const result = await checkWrittenMentions(node.nodeValue, event.sender, event.room_id, guild, di)
+						const result = await checkWrittenMentions(node.nodeValue, guild, di)
 						if (result) {
 							node.nodeValue = result.content
-							ensureJoined.push(...result.ensureJoined)
-							allowedMentionsParse.push(...result.allowedMentionsParse)
+							ensureJoined.push(result.ensureJoined)
 						}
 					}
 					// Check for incompatible backticks in code blocks
 					let preNode
 					if (node.nodeType === 3 && node.nodeValue.includes("```") && (preNode = nodeIsChildOf(node, ["PRE"]))) {
 						if (preNode.firstChild?.nodeName === "CODE") {
-							const ext = preNode.firstChild.className.match(/language-(\S+)/)?.[1] || "txt"
+							const ext = (preNode.firstChild.className.match(/language-(\S+)/) || [null, "txt"])[1]
 							const filename = `inline_code.${ext}`
 							// Build the replacement <code> node
 							const replacementCode = doc.createElement("code")
@@ -727,7 +709,7 @@ async function eventToMessage(event, guild, di) {
 			content = turndownService.turndown(root)
 
 			// Put < > around any surviving matrix.to links to hide the URL previews
-			content = content.replace(/\bhttps?:\/\/matrix\.to\/[^<>\n )]*/g, "<$&>")
+			content = content.replace(/\bhttps?:\/\/matrix\.to\/[^ )]*/, "<$&>")
 
 			// It's designed for commonmark, we need to replace the space-space-newline with just newline
 			content = content.replace(/  \n/g, "\n")
@@ -746,13 +728,12 @@ async function eventToMessage(event, guild, di) {
 			}
 
 			content = await handleRoomOrMessageLinks(content, di) // Replace matrix.to links with discord.com equivalents where possible
-			content = content.replace(/\bhttps?:\/\/matrix\.to\/[^<>\n )]*/, "<$&>") // Put < > around any surviving matrix.to links to hide the URL previews
+			content = content.replace(/\bhttps?:\/\/matrix\.to\/[^ )]*/, "<$&>") // Put < > around any surviving matrix.to links to hide the URL previews
 
-			const result = await checkWrittenMentions(content, event.sender, event.room_id, guild, di)
+			const result = await checkWrittenMentions(content, guild, di)
 			if (result) {
 				content = result.content
-				ensureJoined.push(...result.ensureJoined)
-				allowedMentionsParse.push(...result.allowedMentionsParse)
+				ensureJoined.push(result.ensureJoined)
 			}
 
 			// Markdown needs to be escaped, though take care not to escape the middle of links
@@ -767,23 +748,29 @@ async function eventToMessage(event, guild, di) {
 		const description = (event.content.body !== event.content.filename && event.content.filename && event.content.body) || undefined
 		if ("url" in event.content) {
 			// Unencrypted
+			const url = mxUtils.getPublicUrlForMxc(event.content.url)
+			assert(url)
 			attachments.push({id: "0", description, filename})
-			pendingFiles.push({name: filename, mxc: event.content.url})
+			pendingFiles.push({name: filename, url})
 		} else {
 			// Encrypted
+			const url = mxUtils.getPublicUrlForMxc(event.content.file.url)
+			assert(url)
 			assert.equal(event.content.file.key.alg, "A256CTR")
 			attachments.push({id: "0", description, filename})
-			pendingFiles.push({name: filename, mxc: event.content.file.url, key: event.content.file.key.k, iv: event.content.file.iv})
+			pendingFiles.push({name: filename, url, key: event.content.file.key.k, iv: event.content.file.iv})
 		}
 	} else if (event.type === "m.sticker") {
 		content = ""
+		const url = mxUtils.getPublicUrlForMxc(event.content.url)
+		assert(url)
 		let filename = event.content.body
 		if (event.type === "m.sticker") {
 			let mimetype
 			if (event.content.info?.mimetype?.includes("/")) {
 				mimetype = event.content.info.mimetype
 			} else {
-				const res = await di.api.getMedia(event.content.url, {method: "HEAD"})
+				const res = await di.fetch(url, {method: "HEAD"})
 				if (res.status === 200) {
 					mimetype = res.headers.get("content-type")
 				}
@@ -792,22 +779,18 @@ async function eventToMessage(event, guild, di) {
 			filename += "." + mimetype.split("/")[1]
 		}
 		attachments.push({id: "0", filename})
-		pendingFiles.push({name: filename, mxc: event.content.url})
+		pendingFiles.push({name: filename, url})
 	}
 
 	content = displayNameRunoff + replyLine + content
 
 	// Split into 2000 character chunks
 	const chunks = chunk(content, 2000)
-	/** @type {(DiscordTypes.RESTPostAPIWebhookWithTokenJSONBody & {files?: {name: string, file: Buffer | Readable}[]})[]} */
-	const messages = chunks.map(content => ({
+	messages = messages.concat(chunks.map(content => ({
 		content,
-		allowed_mentions: {
-			parse: allowedMentionsParse
-		},
 		username: displayNameShortened,
 		avatar_url: avatarURL
-	}))
+	})))
 
 	if (attachments.length) {
 		// If content is empty (should be the case when uploading a file) then chunk-text will create 0 messages.

m2d/converters/utils.js

@@ -1,13 +1,8 @@
 // @ts-check
 
-const assert = require("assert").strict
-
-const passthrough = require("../../passthrough")
-const {db} = passthrough
-
-const {reg} = require("../../matrix/read-registration")
+const reg = require("../../matrix/read-registration")
 const userRegex = reg.namespaces.users.map(u => new RegExp(u.regex))
-
+const assert = require("assert").strict
 /** @type {import("xxhash-wasm").XXHashAPI} */ // @ts-ignore
 let hasher = null
 // @ts-ignore
@@ -40,6 +35,16 @@ function eventSenderIsFromDiscord(sender) {
 	return false
 }
 
+/**
+ * @param {string} mxc
+ * @returns {string?}
+ */
+function getPublicUrlForMxc(mxc) {
+	const avatarURLParts = mxc?.match(/^mxc:\/\/([^/]+)\/(\w+)$/)
+	if (avatarURLParts) return `${reg.ooye.server_origin}/_matrix/media/r0/download/${avatarURLParts[1]}/${avatarURLParts[2]}`
+	else return null
+}
+
 /**
  * Event IDs are really big and have more entropy than we need.
  * If we want to store the event ID in the database, we can store a more compact version by hashing it with this.
@@ -208,32 +213,6 @@ async function getViaServersQuery(roomID, api) {
 	return qs
 }
 
-/**
- * Since the introduction of authenticated media, this can no longer just be the /_matrix/media/r0/download URL
- * because Discord and Discord users cannot use those URLs. Media now has to be proxied through the bridge.
- * To avoid the bridge acting as a proxy for *any* media, there is a list of permitted media stored in the database.
- * (The other approach would be signing the URLs with a MAC (or similar) and adding the signature, but I'm not a
- * cryptographer, so I don't want to.) To reduce database disk space usage, instead of storing each permitted URL,
- * we just store its xxhash as a signed (as in +/-, not signature) 64-bit integer, which fits in an SQLite integer field.
- * @see https://matrix.org/blog/2024/06/26/sunsetting-unauthenticated-media/ background
- * @see https://matrix.org/blog/2024/06/20/matrix-v1.11-release/ implementation details
- * @see https://www.sqlite.org/fileformat2.html#record_format SQLite integer field size
- * @param {string} mxc
- * @returns {string?}
- */
-function getPublicUrlForMxc(mxc) {
-	assert(hasher, "xxhash is not ready yet")
-	const mediaParts = mxc?.match(/^mxc:\/\/([^/]+)\/(\w+)$/)
-	if (!mediaParts) return null
-
-	const serverAndMediaID = `${mediaParts[1]}/${mediaParts[2]}`
-	const unsignedHash = hasher.h64(serverAndMediaID)
-	const signedHash = unsignedHash - 0x8000000000000000n // shifting down to signed 64-bit range
-	db.prepare("INSERT OR IGNORE INTO media_proxy (permitted_hash) VALUES (?)").run(signedHash)
-
-	return `${reg.ooye.bridge_origin}/download/matrix/${serverAndMediaID}`
-}
-
 module.exports.BLOCK_ELEMENTS = BLOCK_ELEMENTS
 module.exports.eventSenderIsFromDiscord = eventSenderIsFromDiscord
 module.exports.getPublicUrlForMxc = getPublicUrlForMxc

m2d/event-dispatcher.js

@@ -6,7 +6,7 @@
 
 const util = require("util")
 const Ty = require("../types")
-const {discord, db, sync, as, select} = require("../passthrough")
+const {discord, db, sync, as} = require("../passthrough")
 
 /** @type {import("./actions/send-event")} */
 const sendEvent = sync.require("./actions/send-event")
@@ -20,7 +20,8 @@ const matrixCommandHandler = sync.require("../matrix/matrix-command-handler")
 const utils = sync.require("./converters/utils")
 /** @type {import("../matrix/api")}) */
 const api = sync.require("../matrix/api")
-const {reg} = require("../matrix/read-registration")
+/** @type {import("../matrix/read-registration")}) */
+const reg = sync.require("../matrix/read-registration")
 
 let lastReportedEvent = 0
 
@@ -61,34 +62,15 @@ function guard(type, fn) {
 	}
 }
 
-/**
- * @param {Ty.Event.Outer<Ty.Event.M_Reaction>} reactionEvent
- */
-async function onRetryReactionAdd(reactionEvent) {
-	const roomID = reactionEvent.room_id
-	const event = await api.getEvent(roomID, reactionEvent.content["m.relates_to"]?.event_id)
-
-	// Check that it's a real error from OOYE
+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
-
-	// To stop people injecting misleading messages, the reaction needs to come from either the original sender or a room moderator
-	if (reactionEvent.sender !== event.sender) {
-		// Check if it's a room moderator
-		const powerLevelsStateContent = await api.getStateEvent(roomID, "m.room.power_levels", "")
-		const powerLevel = powerLevelsStateContent.users?.[reactionEvent.sender] || 0
-		if (powerLevel < 50) return
-	}
-
-	// Retry
 	if (error.source === "matrix") {
-		as.emit(`type:${error.payload.type}`, error.payload)
+		as.emit("type:" + error.payload.type, error.payload)
 	} else if (error.source === "discord") {
 		discord.cloud.emit("event", error.payload)
 	}
-
-	// Redact the error to stop people from executing multiple retries
-	api.redactEvent(roomID, event.event_id)
 }
 
 sync.addTemporaryListener(as, "type:m.room.message", guard("m.room.message",
@@ -121,7 +103,7 @@ async event => {
 	if (utils.eventSenderIsFromDiscord(event.sender)) return
 	if (event.content["m.relates_to"].key === "🔁") {
 		// Try to bridge a failed event again?
-		await onRetryReactionAdd(event)
+		await retry(event.room_id, event.content["m.relates_to"].event_id)
 	} else {
 		matrixCommandHandler.onReactionAdd(event)
 		await addReaction.addReaction(event)
@@ -166,29 +148,5 @@ sync.addTemporaryListener(as, "type:m.room.member", guard("m.room.member",
 async event => {
 	if (event.state_key[0] !== "@") return
 	if (utils.eventSenderIsFromDiscord(event.state_key)) return
-	if (event.content.membership === "leave" || event.content.membership === "ban") {
-		// Member is gone
-		db.prepare("DELETE FROM member_cache WHERE room_id = ? and mxid = ?").run(event.room_id, event.state_key)
-	} else {
-		// Member is here
-		db.prepare("INSERT INTO member_cache (room_id, mxid, displayname, avatar_url) VALUES (?, ?, ?, ?) ON CONFLICT DO UPDATE SET displayname = ?, avatar_url = ?")
-			.run(
-				event.room_id, event.state_key,
-				event.content.displayname || null, event.content.avatar_url || null,
-				event.content.displayname || null, event.content.avatar_url || null
-			)
-	}
-}))
-
-sync.addTemporaryListener(as, "type:m.room.power_levels", guard("m.room.power_levels",
-/**
- * @param {Ty.Event.StateOuter<Ty.Event.M_Power_Levels>} event
- */
-async event => {
-	if (event.state_key !== "") return
-	const existingPower = select("member_cache", "mxid", {room_id: event.room_id}).pluck().all()
-	const newPower = event.content.users || {}
-	for (const mxid of existingPower) {
-		db.prepare("UPDATE member_cache SET power_level = ? WHERE room_id = ? AND mxid = ?").run(newPower[mxid] || 0, event.room_id, mxid)
-	}
+	db.prepare("REPLACE INTO member_cache (room_id, mxid, displayname, avatar_url) VALUES (?, ?, ?, ?)").run(event.room_id, event.state_key, event.content.displayname || null, event.content.avatar_url || null)
 }))

matrix/api.js

@@ -3,15 +3,14 @@
 const Ty = require("../types")
 const assert = require("assert").strict
 
-const fetch = require("node-fetch").default
-
 const passthrough = require("../passthrough")
 const { discord, sync, db } = passthrough
 /** @type {import("./mreq")} */
 const mreq = sync.require("./mreq")
+/** @type {import("./file")} */
+const file = sync.require("./file")
 /** @type {import("./txnid")} */
 const makeTxnId = sync.require("./txnid")
-const {reg} = require("./read-registration.js")
 
 /**
  * @param {string} p endpoint to access
@@ -60,7 +59,7 @@ async function createRoom(content) {
  */
 async function joinRoom(roomIDOrAlias, mxid) {
 	/** @type {Ty.R.RoomJoined} */
-	const root = await mreq.mreq("POST", path(`/client/v3/join/${roomIDOrAlias}`, mxid), {})
+	const root = await mreq.mreq("POST", path(`/client/v3/join/${roomIDOrAlias}`, mxid))
 	return root.room_id
 }
 
@@ -71,7 +70,6 @@ async function inviteToRoom(roomID, mxidToInvite, mxid) {
 }
 
 async function leaveRoom(roomID, mxid) {
-	console.log(`[api] leave: ${roomID}: ${mxid}`)
 	await mreq.mreq("POST", path(`/client/v3/rooms/${roomID}/leave`, mxid), {})
 }
 
@@ -123,48 +121,6 @@ function getJoinedMembers(roomID) {
 	return mreq.mreq("GET", `/client/v3/rooms/${roomID}/joined_members`)
 }
 
-/**
- * "Get the list of members for this room." This includes joined, invited, knocked, left, and banned members unless a filter is provided.
- * The endpoint also supports `at` and `not_membership` URL parameters, but they are not exposed in this wrapper yet.
- * @param {string} roomID
- * @param {"join" | "invite" | "knock" | "leave" | "ban"} [membership] The kind of membership to filter for. Only one choice allowed.
- * @returns {Promise<{chunk: Ty.Event.Outer<Ty.Event.M_Room_Member>[]}>}
- */
-function getMembers(roomID, membership) {
-	return mreq.mreq("GET", `/client/v3/rooms/${roomID}/members`, undefined, {membership})
-}
-
-/**
- * @param {string} roomID
- * @param {{from?: string, limit?: any}} pagination
- * @returns {Promise<Ty.HierarchyPagination<Ty.R.Hierarchy>>}
- */
-function getHierarchy(roomID, pagination) {
-	let path = `/client/v1/rooms/${roomID}/hierarchy`
-	if (!pagination.from) delete pagination.from
-	if (!pagination.limit) pagination.limit = 50
-	path += `?${new URLSearchParams(pagination)}`
-	return mreq.mreq("GET", path)
-}
-
-/**
- * Like `getHierarchy` but collects all pages for you.
- * @param {string} roomID
- */
-async function getFullHierarchy(roomID) {
-	/** @type {Ty.R.Hierarchy[]} */
-	let rooms = []
-	/** @type {string | undefined} */
-	let nextBatch = undefined
-	do {
-		/** @type {Ty.HierarchyPagination<Ty.R.Hierarchy>} */
-		const res = await getHierarchy(roomID, {from: nextBatch})
-		rooms.push(...res.rooms)
-		nextBatch = res.next_batch
-	} while (nextBatch)
-	return rooms
-}
-
 /**
  * @param {string} roomID
  * @param {string} eventID
@@ -181,26 +137,6 @@ function getRelations(roomID, eventID, pagination, relType) {
 	return mreq.mreq("GET", path)
 }
 
-/**
- * Like `getRelations` but collects and filters all pages for you.
- * @param {string} roomID
- * @param {string} eventID
- * @param {string?} [relType] type of relations to filter, e.g. "m.annotation" for reactions
- */
-async function getFullRelations(roomID, eventID, relType) {
-	/** @type {Ty.Event.Outer<Ty.Event.M_Reaction>[]} */
-	let reactions = []
-	/** @type {string | undefined} */
-	let nextBatch = undefined
-	do {
-		/** @type {Ty.Pagination<Ty.Event.Outer<Ty.Event.M_Reaction>>} */
-		const res = await getRelations(roomID, eventID, {from: nextBatch}, relType)
-		reactions = reactions.concat(res.chunk)
-		nextBatch = res.next_batch
-	} while (nextBatch)
-	return reactions
-}
-
 /**
  * @param {string} roomID
  * @param {string} type
@@ -292,53 +228,6 @@ async function setUserPower(roomID, mxid, power) {
 	return powerLevels
 }
 
-/**
- * Set a user's power level for a whole room hierarchy.
- * @param {string} roomID
- * @param {string} mxid
- * @param {number} power
- */
-async function setUserPowerCascade(roomID, mxid, power) {
-	assert(roomID[0] === "!")
-	assert(mxid[0] === "@")
-	const rooms = await getFullHierarchy(roomID)
-	for (const room of rooms) {
-		await setUserPower(room.room_id, mxid, power)
-	}
-}
-
-async function ping() {
-	// not using mreq so that we can read the status code
-	const res = await fetch(`${mreq.baseUrl}/client/v1/appservice/${reg.id}/ping`, {
-		method: "POST",
-		headers: {
-			Authorization: `Bearer ${reg.as_token}`
-		},
-		body: "{}"
-	})
-	const root = await res.json()
-	return {
-		ok: res.ok,
-		status: res.status,
-		root
-	}
-}
-
-/**
- * @param {string} mxc
- * @param {fetch.RequestInit} [init]
- */
-function getMedia(mxc, init = {}) {
-	const mediaParts = mxc?.match(/^mxc:\/\/([^/]+)\/(\w+)$/)
-	assert(mediaParts)
-	return fetch(`${mreq.baseUrl}/client/v1/media/download/${mediaParts[1]}/${mediaParts[2]}`, {
-		headers: {
-			Authorization: `Bearer ${reg.as_token}`
-		},
-		...init
-	})
-}
-
 module.exports.path = path
 module.exports.register = register
 module.exports.createRoom = createRoom
@@ -350,11 +239,7 @@ module.exports.getEventForTimestamp = getEventForTimestamp
 module.exports.getAllState = getAllState
 module.exports.getStateEvent = getStateEvent
 module.exports.getJoinedMembers = getJoinedMembers
-module.exports.getMembers = getMembers
-module.exports.getHierarchy = getHierarchy
-module.exports.getFullHierarchy = getFullHierarchy
 module.exports.getRelations = getRelations
-module.exports.getFullRelations = getFullRelations
 module.exports.sendState = sendState
 module.exports.sendEvent = sendEvent
 module.exports.redactEvent = redactEvent
@@ -362,6 +247,3 @@ module.exports.sendTyping = sendTyping
 module.exports.profileSetDisplayname = profileSetDisplayname
 module.exports.profileSetAvatarUrl = profileSetAvatarUrl
 module.exports.setUserPower = setUserPower
-module.exports.setUserPowerCascade = setUserPowerCascade
-module.exports.ping = ping
-module.exports.getMedia = getMedia

matrix/appservice.js

@@ -0,0 +1,8 @@
+const reg = require("../matrix/read-registration")
+const AppService = require("matrix-appservice").AppService
+const as = new AppService({
+	homeserverToken: reg.hs_token
+})
+as.listen(+(new URL(reg.url).port))
+
+module.exports = as

matrix/kstate.js

@@ -1,15 +1,10 @@
 // @ts-check
 
 const assert = require("assert").strict
-const mixin = require("@cloudrac3r/mixin-deep")
-const {isDeepStrictEqual} = require("util")
+const mixin = require("mixin-deep")
+const deepEqual = require("deep-equal")
 
-const passthrough = require("../passthrough")
-const {sync} = passthrough
-/** @type {import("./file")} */
-const file = sync.require("./file")
-
-/** Mutates the input. Not recursive - can only include or exclude entire state events. */
+/** Mutates the input. */
 function kstateStripConditionals(kstate) {
 	for (const [k, content] of Object.entries(kstate)) {
 		// conditional for whether a key is even part of the kstate (doing this declaratively on json is hard, so represent it as a property instead.)
@@ -21,33 +16,9 @@ function kstateStripConditionals(kstate) {
 	return kstate
 }
 
-/** Mutates the input. Works recursively through object tree. */
-async function kstateUploadMxc(obj) {
-	const promises = []
-	function inner(obj) {
-		for (const [k, v] of Object.entries(obj)) {
-			if (v == null || typeof v !== "object") continue
-
-			if (v.$url) {
-				promises.push(
-					file.uploadDiscordFileToMxc(v.$url)
-					.then(mxc => obj[k] = mxc)
-				)
-			}
-
-			inner(v)
-		}
-	}
-	inner(obj)
-	await Promise.all(promises)
-	return obj
-}
-
-/** Automatically strips conditionals and uploads URLs to mxc. */
-async function kstateToState(kstate) {
+function kstateToState(kstate) {
 	const events = []
 	kstateStripConditionals(kstate)
-	await kstateUploadMxc(kstate)
 	for (const [k, content] of Object.entries(kstate)) {
 		const slashIndex = k.indexOf("/")
 		assert(slashIndex > 0)
@@ -80,14 +51,14 @@ function diffKState(actual, target) {
 			// Special handling for power levels, we want to deep merge the actual and target into the final state.
 			if (!(key in actual)) throw new Error(`want to apply a power levels diff, but original power level data is missing\nstarted with:  ${JSON.stringify(actual)}\nwant to apply: ${JSON.stringify(target)}`)
 			const temp = mixin({}, actual[key], target[key])
-			if (!isDeepStrictEqual(actual[key], temp)) {
+			if (!deepEqual(actual[key], temp, {strict: true})) {
 				// they differ. use the newly prepared object as the diff.
 				diff[key] = temp
 			}
 
 		} else if (key in actual) {
 			// diff
-			if (!isDeepStrictEqual(actual[key], target[key])) {
+			if (!deepEqual(actual[key], target[key], {strict: true})) {
 				// they differ. use the target as the diff.
 				diff[key] = target[key]
 			}
@@ -103,7 +74,6 @@ function diffKState(actual, target) {
 }
 
 module.exports.kstateStripConditionals = kstateStripConditionals
-module.exports.kstateUploadMxc = kstateUploadMxc
 module.exports.kstateToState = kstateToState
 module.exports.stateToKState = stateToKState
 module.exports.diffKState = diffKState

matrix/kstate.test.js

@@ -1,5 +1,5 @@
 const assert = require("assert")
-const {kstateToState, stateToKState, diffKState, kstateStripConditionals, kstateUploadMxc} = require("./kstate")
+const {kstateToState, stateToKState, diffKState, kstateStripConditionals} = require("./kstate")
 const {test} = require("supertape")
 
 test("kstate strip: strips false conditions", t => {
@@ -21,53 +21,8 @@ test("kstate strip: keeps true conditions while removing $if", t => {
 	})
 })
 
-test("kstateUploadMxc: sets the mxc", async t => {
-	const input = {
-		"m.room.avatar/": {
-			url: {$url: "https://cdn.discordapp.com/guilds/112760669178241024/users/134826546694193153/avatars/38dd359aa12bcd52dd3164126c587f8c.png?size=1024"},
-			test1: {
-				test2: {
-					test3: {$url: "https://cdn.discordapp.com/attachments/176333891320283136/1157854643037163610/Screenshot_20231001_034036.jpg"}
-				}
-			}
-		}
-	}
-	await kstateUploadMxc(input)
-	t.deepEqual(input, {
-		"m.room.avatar/": {
-			url: "mxc://cadence.moe/rfemHmAtcprjLEiPiEuzPhpl",
-			test1: {
-				test2: {
-					test3: "mxc://cadence.moe/zAXdQriaJuLZohDDmacwWWDR"
-				}
-			}
-		}
-	})
-})
-
-test("kstateUploadMxc and strip: work together", async t => {
-	const input = {
-		"m.room.avatar/yes": {
-			$if: true,
-			url: {$url: "https://cdn.discordapp.com/guilds/112760669178241024/users/134826546694193153/avatars/38dd359aa12bcd52dd3164126c587f8c.png?size=1024"}
-		},
-		"m.room.avatar/no": {
-			$if: false,
-			url: {$url: "https://cdn.discordapp.com/avatars/320067006521147393/5fc4ad85c1ea876709e9a7d3374a78a1.png?size=1024"}
-		},
-	}
-	kstateStripConditionals(input)
-	await kstateUploadMxc(input)
-	t.deepEqual(input, {
-		"m.room.avatar/yes": {
-			url: "mxc://cadence.moe/rfemHmAtcprjLEiPiEuzPhpl"
-		}
-	})
-})
-
-
-test("kstate2state: general", async t => {
-	t.deepEqual(await kstateToState({
+test("kstate2state: general", t => {
+	t.deepEqual(kstateToState({
 		"m.room.name/": {name: "test name"},
 		"m.room.member/@cadence:cadence.moe": {membership: "join"},
 		"uk.half-shot.bridge/org.matrix.appservice-irc://irc/epicord.net/#general": {creator: "@cadence:cadence.moe"}

matrix/matrix-command-handler.js

@@ -14,7 +14,7 @@ const mxUtils = sync.require("../m2d/converters/utils")
 const dUtils = sync.require("../discord/utils")
 /** @type {import("./kstate")} */
 const ks = sync.require("./kstate")
-const {reg} = require("./read-registration")
+const reg = require("./read-registration")
 
 const PREFIXES = ["//", "/"]
 
@@ -217,8 +217,9 @@ const commands = [{
 				} else {
 					// Upload it to Discord and have the bridge sync it back to Matrix again
 					for (const e of toUpload) {
+						const publicUrl = mxUtils.getPublicUrlForMxc(e.url)
 						// @ts-ignore
-						const resizeInput = await api.getMedia(e.url, {agent: false}).then(res => res.arrayBuffer())
+						const resizeInput = await fetch(publicUrl, {agent: false}).then(res => res.arrayBuffer())
 						const resizeOutput = await sharp(resizeInput)
 							.resize(EMOJI_SIZE, EMOJI_SIZE, {fit: "inside", withoutEnlargement: true, background: {r: 0, g: 0, b: 0, alpha: 0}})
 							.png()

matrix/mreq.js

@@ -1,11 +1,14 @@
 // @ts-check
 
 const fetch = require("node-fetch").default
-const mixin = require("@cloudrac3r/mixin-deep")
+const mixin = require("mixin-deep")
 const stream = require("stream")
 const getStream = require("get-stream")
 
-const {reg, writeRegistration} = require("./read-registration.js")
+const passthrough = require("../passthrough")
+const { sync } = passthrough
+/** @type {import("./read-registration")} */
+const reg = sync.require("./read-registration.js")
 
 const baseUrl = `${reg.ooye.server_origin}/_matrix`
 
@@ -45,15 +48,13 @@ async function mreq(method, url, body, extra = {}) {
 	const root = await res.json()
 
 	if (!res.ok || root.errcode) {
-		if (root.error?.includes("Content-Length") && !reg.ooye.content_length_workaround) {
-			reg.ooye.content_length_workaround = true
-			const root = await mreq(method, url, body, extra)
-			console.error("OOYE cannot stream uploads to Synapse. The `content_length_workaround` option"
-				+ "\nhas been activated in registration.yaml, which works around the problem, but"
-				+ "\nhalves the speed of bridging d->m files. A better way to resolve this problem"
-				+ "\nis to run an nginx reverse proxy to Synapse and re-run OOYE setup.")
-			writeRegistration(reg)
-			return root
+		if (root.error?.includes("Content-Length")) {
+			console.error(`OOYE cannot stream uploads to Synapse. Please choose one of these workarounds:`
+				+ `\n  * Run an nginx reverse proxy to Synapse, and point registration.yaml's`
+				+ `\n    \`server_origin\` to nginx`
+				+ `\n  * Set \`content_length_workaround: true\` in registration.yaml (this will`
+				+ `\n    halve the speed of bridging d->m files)`)
+			throw new Error("Synapse is not accepting stream uploads, see the message above.")
 		}
 		delete opts.headers.Authorization
 		throw new MatrixServerError(root, {baseUrl, url, ...opts})
@@ -80,6 +81,5 @@ async function withAccessToken(token, callback) {
 }
 
 module.exports.MatrixServerError = MatrixServerError
-module.exports.baseUrl = baseUrl
 module.exports.mreq = mreq
 module.exports.withAccessToken = withAccessToken

matrix/read-registration.js

@@ -0,0 +1,14 @@
+// @ts-check
+
+const fs = require("fs")
+const assert = require("assert").strict
+const yaml = require("js-yaml")
+
+/** @ts-ignore @type {import("../types").AppServiceRegistrationConfig} */
+const reg = yaml.load(fs.readFileSync("registration.yaml", "utf8"))
+reg["ooye"].invite = (reg.ooye.invite || []).filter(mxid => mxid.endsWith(`:${reg.ooye.server_name}`)) // one day I will understand why typescript disagrees with dot notation on this line
+assert(reg.ooye.max_file_size)
+assert(reg.ooye.namespace_prefix)
+assert(reg.ooye.server_name)
+
+module.exports = reg

matrix/read-registration.test.js

@@ -0,0 +1,10 @@
+const {test} = require("supertape")
+const reg = require("./read-registration")
+
+test("reg: has necessary parameters", t => {
+	const propertiesToCheck = ["sender_localpart", "id", "as_token", "ooye"]
+	t.deepEqual(
+		propertiesToCheck.filter(p => p in reg),
+		propertiesToCheck
+	)
+})

package.json

@@ -14,58 +14,46 @@
   ],
   "author": "Cadence, PapiOphidian",
   "license": "AGPL-3.0-or-later",
-  "engines": {
-    "node": ">=20"
-  },
   "dependencies": {
     "@chriscdn/promise-semaphore": "^2.0.1",
-    "@cloudrac3r/discord-markdown": "^2.6.3",
-    "@cloudrac3r/giframe": "^0.4.3",
-    "@cloudrac3r/html-template-tag": "^5.0.1",
-    "@cloudrac3r/in-your-element": "^1.0.0",
-    "@cloudrac3r/mixin-deep": "^3.0.0",
-    "@cloudrac3r/pngjs": "^7.0.3",
-    "@cloudrac3r/pug": "^4.0.4",
-    "@cloudrac3r/turndown": "^7.1.4",
-    "@stackoverflow/stacks": "^2.5.7",
-    "@stackoverflow/stacks-icons": "^6.0.2",
-    "ansi-colors": "^4.1.3",
-    "better-sqlite3": "^11.1.2",
+    "better-sqlite3": "^9.0.0",
     "chunk-text": "^2.0.1",
-    "cloudstorm": "^0.10.10",
-    "domino": "^2.1.6",
-    "enquirer": "^2.4.1",
-    "entities": "^5.0.0",
+    "cloudstorm": "^0.10.8",
+    "deep-equal": "^2.2.3",
+    "discord-markdown": "git+https://git.sr.ht/~cadence/nodejs-discord-markdown#2881b447954fcea10510f212fa4c1dbbdc0a57a3",
+    "entities": "^4.5.0",
     "get-stream": "^6.0.1",
-    "h3": "^1.12.0",
-    "heatsync": "^2.5.5",
-    "lru-cache": "^10.4.3",
+    "giframe": "github:cloudrac3r/giframe#v0.4.1",
+    "heatsync": "^2.4.1",
+    "html-template-tag": "github:cloudrac3r/html-template-tag#v5.0",
+    "js-yaml": "^4.1.0",
+    "matrix-appservice": "^2.0.0",
     "minimist": "^1.2.8",
+    "mixin-deep": "github:cloudrac3r/mixin-deep#v3.0.0",
     "node-fetch": "^2.6.7",
+    "pngjs": "github:cloudrac3r/pngjs#v7.0.2",
     "prettier-bytes": "^1.0.4",
-    "sharp": "^0.33.4",
+    "sharp": "^0.32.6",
     "snowtransfer": "^0.10.5",
     "stream-mime-type": "^1.0.2",
     "try-to-catch": "^3.0.1",
-    "uqr": "^0.1.2",
-    "xxhash-wasm": "^1.0.2",
-    "zod": "^3.23.8"
+    "turndown": "^7.1.2",
+    "xxhash-wasm": "^1.0.2"
   },
   "devDependencies": {
-    "@cloudrac3r/tap-dot": "^2.0.3",
     "@types/node": "^18.16.0",
     "@types/node-fetch": "^2.6.3",
-    "c8": "^10.1.2",
+    "c8": "^8.0.1",
+    "colorette": "^1.4.0",
     "cross-env": "^7.0.3",
     "discord-api-types": "^0.37.60",
-    "supertape": "^10.4.0"
+    "supertape": "^10.3.0",
+    "tap-dot": "github:cloudrac3r/tap-dot#9dd7750ececeae3a96afba91905be812b6b2cc2d"
   },
   "scripts": {
-    "start": "node start.js",
-    "setup": "node scripts/setup.js",
     "addbot": "node addbot.js",
     "test": "cross-env FORCE_COLOR=true supertape --no-check-assertions-count --format tap test/test.js | tap-dot",
     "test-slow": "cross-env FORCE_COLOR=true supertape --no-check-assertions-count --format tap --no-worker test/test.js -- --slow | tap-dot",
-    "cover": "c8 -o test/coverage --skip-full -x db/migrations -x src/matrix/file.js -x src/matrix/api.js -x src/matrix/mreq.js -x src/d2m/converters/rlottie-wasm.js -r html -r text supertape --no-check-assertions-count --format fail --no-worker test/test.js -- --slow"
+    "cover": "c8 --skip-full -x db/migrations -x matrix/file.js -x matrix/api.js -x matrix/mreq.js -x d2m/converters/rlottie-wasm.js -r html -r text supertape --no-check-assertions-count --format fail --no-worker test/test.js -- --slow"
   }
 }

passthrough.js

@@ -3,10 +3,11 @@
 /**
  * @typedef {Object} Passthrough
  * @property {import("repl").REPLServer} repl
+ * @property {typeof import("./config")} config
  * @property {import("./d2m/discord-client")} discord
- * @property {import("heatsync").default} sync
+ * @property {import("heatsync")} sync
  * @property {import("better-sqlite3/lib/database")} db
- * @property {import("@cloudrac3r/in-your-element").AppService} as
+ * @property {import("matrix-appservice").AppService} as
  * @property {import("./db/orm").from} from
  * @property {import("./db/orm").select} select
  */

readme.md

@@ -41,7 +41,7 @@ Most features you'd expect in both directions, plus a little extra spice:
 * Custom emoji list syncing
 * Custom emojis in messages
 * Custom room names/avatars can be applied on Matrix-side
-* Larger files from Discord are linked instead of reuploaded to Matrix (links don't expire)
+* Larger files from Discord are linked instead of reuploaded to Matrix
 * Simulated user accounts are named @the_persons_username rather than @112233445566778899
 
 For more information about features, [see the user guide.](https://gitdab.com/cadence/out-of-your-element/src/branch/main/docs/user-guide.md)
@@ -55,7 +55,7 @@ For more information about features, [see the user guide.](https://gitdab.com/ca
 
 Using WeatherStack as a thin layer between the bridge application and the Discord API lets us control exactly what data is cached in memory. Only necessary information is cached. For example, member data, user data, message content, and past edits are never stored in memory. This keeps the memory usage low and also prevents it ballooning in size over the bridge's runtime.
 
-The bridge uses a small SQLite database to store relationships like which Discord messages correspond to which Matrix messages. This is so the bridge knows what to edit when some message is edited on Discord. Using `without rowid` on the database tables stores the index and the data in the same B-tree. Since Matrix and Discord's internal IDs are quite long, this vastly reduces storage space because those IDs do not have to be stored twice separately. Some event IDs and URLs are actually stored as xxhash integers to reduce storage requirements even more. On my personal instance of OOYE, every 300,000 messages (representing a year of conversations) requires 47.3 MB of storage space in the SQLite database.
+The bridge uses a small SQLite database to store relationships like which Discord messages correspond to which Matrix messages. This is so the bridge knows what to edit when some message is edited on Discord. Using `without rowid` on the database tables stores the index and the data in the same B-tree. Since Matrix and Discord's internal IDs are quite long, this vastly reduces storage space because those IDs do not have to be stored twice separately. Some event IDs are actually stored as xxhash integers to reduce storage requirements even more. On my personal instance of OOYE, every 100,000 messages require 16.1 MB of storage space in the SQLite database.
 
 Only necessary data and columns are queried from the database. We only contact the homeserver API if the database doesn't contain what we need.
 
@@ -74,50 +74,52 @@ You'll need:
 
 Follow these steps:
 
-1. [Get Node.js version 20 or later](https://nodejs.org/en/download/prebuilt-installer)
+1. [Get Node.js version 18 or later](https://nodejs.org/en/download/releases) (the version is required by the better-sqlite3 and matrix-appservice dependencies)
 
 1. Clone this repo and checkout a specific tag. (Development happens on main. Stable versions are tagged.)
 	* The latest release tag is ![](https://img.shields.io/gitea/v/release/cadence/out-of-your-element?gitea_url=https%3A%2F%2Fgitdab.com&style=flat-square&label=%20&color=black).
 
-1. Install dependencies: `npm install`
+1. Install dependencies: `npm install --save-dev` (omit --save-dev if you will not run the automated tests)
 
-1. Run `npm run setup` to check your setup and set the bot's initial state. It will prompt you for information. You only need to run this once ever.
+1. Copy `config.example.js` to `config.js` and fill in Discord token.
 
-1. Start the bridge: `npm run start`
+1. Copy `registration.example.yaml` to `registration.yaml` and fill in bracketed values. You could generate each hex string with `dd if=/dev/urandom bs=32 count=1 2> /dev/null | basenc --base16 | dd conv=lcase 2> /dev/null`. Register the registration in Synapse's `homeserver.yaml` through the usual appservice installation process, then restart Synapse.
+
+1. Run `node scripts/seed.js` to check your setup and set the bot's initial state. You only need to run this once ever.
+1. Make sure the tests work by running `npm t`
+
+1. Start the bridge: `node start.js`
 
 1. Add the bot to a server - use any *one* of the following commands for an invite link:
 	* (in the REPL) `addbot`
+	* (in a chat) `//addbot`
 	* $ `node addbot.js`
 	* $ `npm run addbot`
 	* $ `./addbot.sh`
 
 Now any message on Discord will create the corresponding rooms on Matrix-side. After the rooms have been created, Matrix and Discord users can chat back and forth.
 
-To get into the rooms on your Matrix account, use the `/invite [your mxid here]` command on Discord.
+To get into the rooms on your Matrix account, either add yourself to `invite` in `registration.yaml`, or use the `//invite [your mxid here]` command on Discord.
 
 # Development setup
 
-* Install development dependencies with `npm install --save-dev` so you can run the tests.
-* Most files you change, such as actions, converters, and web, will automatically be reloaded.
+* Be sure to install dependencies with `--save-dev` so you can run the tests.
+* Any files you change will automatically be reloaded, except for `stdin.js` and `d2m/discord-*.js`.
 * If developing on a different computer to the one running the homeserver, use SSH port forwarding so that Synapse can connect on its `localhost:6693` to reach the running bridge on your computer. Example: `ssh -T -v -R 6693:localhost:6693 me@matrix.cadence.moe`
 * I recommend developing in Visual Studio Code so that the JSDoc x TypeScript annotation comments work. I don't know which other editors or language servers support annotations and type inference.
 
 ## Repository structure
 
     .
+    * Run this to start the bridge:
+    ├── start.js
     * Runtime configuration, like tokens and user info:
+    ├── config.js
     ├── registration.yaml
-    * You are here! :)
-    ├── readme.md
     * The bridge's SQLite database is stored here:
-	 ├── ooye.db*
-    * Source code
-    └── src
-        * Database schema:
     ├── db
-		  │   ├── orm.js, orm-defs.d.ts
+    │   ├── *.sql, *.db
     │   * Migrations change the database schema when you update to a newer version of OOYE:
-        │   ├── migrate.js
     │   └── migrations
     │       └── *.sql, *.js
     * Discord-to-Matrix bridging:
@@ -132,10 +134,7 @@ To get into the rooms on your Matrix account, use the `/invite [your mxid here]`
     │   ├── discord-*.js
     │   * Listening to events from Discord and dispatching them to the correct `action`:
     │   └── event-dispatcher.js
-        * Discord bot commands and menus:
     ├── discord
-        │   ├── interactions
-        │   │   └── *.js
     │   └── discord-command-handler.js
     * Matrix-to-Discord bridging:
     ├── m2d
@@ -151,50 +150,37 @@ To get into the rooms on your Matrix account, use the `/invite [your mxid here]`
     ├── matrix
     │   └── *.js
     * Various files you can run once if you need them.
-        └── scripts
-            * First time running a new bridge? Run this file to set up prerequisites on the Matrix server:
-            ├── setup.js
-            * Hopefully you won't need the rest of these. Code quality varies wildly.
-            └── *.js
+    ├── scripts
+    │   * First time running a new bridge? Run this file to plant a seed, which will flourish into state for the bridge:
+    │   ├── seed.js
+    │   * Hopefully you won't need the rest of these. Code quality varies wildly.
+    │   └── *.js
+    * You are here! :)
+    └── readme.md
 
 ## Dependency justification
 
-Total transitive production dependencies: 147
+(deduped transitive dependency count) dependency name: explanation
 
-### <font size="+2">🦕</font>
-
-* (31) better-sqlite3: SQLite3 is the best database, and this is the best library for it.
-* (27) @cloudrac3r/pug: Language for dynamic web pages. This is my fork. (I released code that hadn't made it to npm, and removed the heavy pug-filters feature.)
-* (16) stream-mime-type@1: This seems like the best option. Version 1 is used because version 2 is ESM-only.
-* (14) h3: Web server. OOYE needs this for the appservice listener, authmedia proxy, and more. 14 transitive dependencies is on the low end for a web server.
-* (11) sharp: Image resizing and compositing. OOYE needs this for the emoji sprite sheets.
-
-### <font size="-1">🪱</font>
-
-* (0) @chriscdn/promise-semaphore: It does what I want.
-* (1) @cloudrac3r/discord-markdown: This is my fork.
-* (0) @cloudrac3r/giframe: This is my fork.
-* (1) @cloudrac3r/html-template-tag: This is my fork.
-* (0) @cloudrac3r/in-your-element: This is my Matrix Appservice API library. It depends on h3 and zod, which are already pulled in by OOYE.
-* (0) @cloudrac3r/mixin-deep: This is my fork. (It fixes a bug in regular mixin-deep.)
-* (0) @cloudrac3r/pngjs: Lottie stickers are converted to bitmaps with the vendored Rlottie WASM build, then the bitmaps are converted to PNG with pngjs.
-* (0) @cloudrac3r/turndown: This HTML-to-Markdown converter looked the most suitable. I forked it to change the escaping logic to match the way Discord works.
-* (3) @stackoverflow/stacks: Stack Overflow design language and icons.
-* (0) ansi-colors: Helps with interactive prompting for the initial setup, and it's already pulled in by enquirer.
+* (0) @chriscdn/promise-semaphore: It does what I want! I like it!
+* (42) better-sqlite3: SQLite3 is the best database, and this is the best library for it. Really! I love it.
 * (1) chunk-text: It does what I want.
 * (0) cloudstorm: Discord gateway library with bring-your-own-caching that I trust.
-* (0) domino: DOM implementation that's already pulled in by turndown.
-* (1) enquirer: Interactive prompting for the initial setup rather than forcing users to edit YAML non-interactively.
-* (0) entities: Looks fine. No dependencies.
+* (8) snowtransfer: Discord API library with bring-your-own-caching that I trust.
+* (0) deep-equal: It's already pulled in by supertape.
+* (1) discord-markdown: This is my fork!
 * (0) get-stream: Only needed if content_length_workaround is true.
+* (0) giframe: This is my fork!
 * (1) heatsync: Module hot-reloader that I trust.
-* (1) js-yaml: Will be removed in the future after registration.yaml is converted to JSON.
-* (0) lru-cache: For holding unused nonce in memory and letting them be overwritten later if never used.
+* (0) entities: Looks fine. No dependencies.
+* (1) html-template-tag: This is my fork!
+* (1) js-yaml: It seems to do what I want, and it's already pulled in by matrix-appservice.
+* (70) matrix-appservice: I wish it didn't pull in express :(
 * (0) minimist: It's already pulled in by better-sqlite3->prebuild-install.
-* (3) node-fetch@2: I like it and it does what I want. Version 2 is used because version 3 is ESM-only.
+* (0) mixin-deep: This is my fork! (It fixes a bug in regular mixin-deep.)
+* (3) node-fetch@2: I like it and it does what I want.
+* (0) pngjs: Lottie stickers are converted to bitmaps with the vendored Rlottie WASM build, then the bitmaps are converted to PNG with pngjs.
 * (0) prettier-bytes: It does what I want and has no dependencies.
-* (2) snowtransfer: Discord API library with bring-your-own-caching that I trust.
-* (0) try-to-catch: Not strictly necessary, but it's already pulled in by supertape, so I may as well.
-* (0) uqr: QR code SVG generator. Used on the website to scan in an invite link.
-* (0) xxhash-wasm: Used where cryptographically secure hashing is not required.
-* (0) zod: Input validation for the web server. It's popular and easy to use.
+* (51) sharp: Jimp has fewer dependencies, but sharp is faster.
+* (0) try-to-catch: Not strictly necessary, but it does what I want and has no dependencies.
+* (1) turndown: I need an HTML-to-Markdown converter and this one looked suitable enough. It has some bugs that I've worked around, so I might switch away from it later.

registration.example.yaml

@@ -0,0 +1,24 @@
+id: de8c56117637cb5d9f4ac216f612dc2adb1de4c09ae8d13553f28c33a28147c7
+hs_token: [a unique 64 character hex string]
+as_token: [a unique 64 character hex string]
+url: http://localhost:6693
+sender_localpart: _ooye_bot
+protocols:
+  - discord
+namespaces:
+  users:
+    - exclusive: true
+      regex: '@_ooye_.*'
+  aliases:
+    - exclusive: true
+      regex: '#_ooye_.*'
+rate_limited: false
+ooye:
+  namespace_prefix: _ooye_
+  max_file_size: 5000000
+  server_name: [the part after the colon in your matrix id, like cadence.moe]
+  server_origin: [the full protocol and domain of your actual matrix server's location, with no trailing slash, like https://matrix.cadence.moe]
+  content_length_workaround: false
+  invite:
+    # uncomment this to auto-invite the named user to newly created spaces and mark them as admin (PL 100) everywhere
+    # - '@cadence:cadence.moe'

scripts/capture-message-update-events.js

@@ -1,4 +1,3 @@
-#!/usr/bin/env node
 // @ts-check
 
 // ****
@@ -17,16 +16,16 @@ function fieldToPresenceValue(field) {
 const sqlite = require("better-sqlite3")
 const HeatSync = require("heatsync")
 
-const {reg} = require("../src/matrix/read-registration")
-const passthrough = require("../src/passthrough")
+const config = require("../config")
+const passthrough = require("../passthrough")
 
 const sync = new HeatSync({watchFS: false})
 
-Object.assign(passthrough, {sync})
+Object.assign(passthrough, {config, sync})
 
-const DiscordClient = require("../src/d2m/discord-client")
+const DiscordClient = require("../d2m/discord-client")
 
-const discord = new DiscordClient(reg.ooye.discord_token, "no")
+const discord = new DiscordClient(config.discordToken, "no")
 passthrough.discord = discord
 
 ;(async () => {
@@ -38,7 +37,7 @@ passthrough.discord = discord
 })()
 
 const events = new sqlite("scripts/events.db")
-const sql = "INSERT INTO update_event (json, " + interestingFields.join(", ") + ") VALUES (" + "?".repeat(interestingFields.length + 1).split("").join(", ") + ")"
+const sql = "INSERT INTO \"update\" (json, " + interestingFields.join(", ") + ") VALUES (" + "?".repeat(interestingFields.length + 1).split("").join(", ") + ")"
 console.log(sql)
 const prepared = events.prepare(sql)
 

scripts/check-migrate.js

@@ -1,4 +1,3 @@
-#!/usr/bin/env node
 // @ts-check
 
 // Trigger the database migration flow and exit after committing.
@@ -6,10 +5,11 @@
 
 const sqlite = require("better-sqlite3")
 
-const passthrough = require("../src/passthrough")
-const db = new sqlite("ooye.db")
-const migrate = require("../src/db/migrate")
+const config = require("../config")
+const passthrough = require("../passthrough")
+const db = new sqlite("db/ooye.db")
+const migrate = require("../db/migrate")
 
-Object.assign(passthrough, {db})
+Object.assign(passthrough, {config, db })
 
 migrate.migrate(db)

scripts/migrate-from-old-bridge.js

@@ -1,4 +1,3 @@
-#!/usr/bin/env node
 // @ts-check
 
 const assert = require("assert").strict
@@ -7,17 +6,19 @@ const Semaphore = require("@chriscdn/promise-semaphore")
 const sqlite = require("better-sqlite3")
 const HeatSync = require("heatsync")
 
-const passthrough = require("../src/passthrough")
+const config = require("../config")
+const passthrough = require("../passthrough")
 
 const sync = new HeatSync({watchFS: false})
 
-const {reg} = require("../src/matrix/read-registration")
+/** @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("ooye.db")
+const db = new sqlite("db/ooye.db")
 
 db.exec(`CREATE TABLE IF NOT EXISTS half_shot_migration (
 	discord_channel	TEXT NOT NULL,
@@ -25,19 +26,19 @@ db.exec(`CREATE TABLE IF NOT EXISTS half_shot_migration (
 	PRIMARY KEY("discord_channel")
 ) WITHOUT ROWID;`)
 
-Object.assign(passthrough, {sync, db})
+Object.assign(passthrough, {config, sync, db})
 
-const DiscordClient = require("../src/d2m/discord-client")
-const discord = new DiscordClient(reg.ooye.discord_token, "half")
+const DiscordClient = require("../d2m/discord-client")
+const discord = new DiscordClient(config.discordToken, "half")
 passthrough.discord = discord
 
-/** @type {import("../src/d2m/actions/create-space")} */
+/** @type {import("../d2m/actions/create-space")} */
 const createSpace = sync.require("../d2m/actions/create-space")
-/** @type {import("../src/d2m/actions/create-room")} */
+/** @type {import("../d2m/actions/create-room")} */
 const createRoom = sync.require("../d2m/actions/create-room")
-/** @type {import("../src/matrix/mreq")} */
+/** @type {import("../matrix/mreq")} */
 const mreq = sync.require("../matrix/mreq")
-/** @type {import("../src/matrix/api")} */
+/** @type {import("../matrix/api")} */
 const api = sync.require("../matrix/api")
 
 const sema = new Semaphore()

scripts/register.js

@@ -0,0 +1,22 @@
+// @ts-check
+
+const { AppServiceRegistration } = require("matrix-appservice");
+
+let id = AppServiceRegistration.generateToken()
+try {
+	const reg = require("../matrix/read-registration")
+	if (reg.id) id = reg.id
+} catch (e) {}
+
+// creating registration files
+const newReg = new AppServiceRegistration(null);
+newReg.setAppServiceUrl("http://localhost:6693");
+newReg.setId(id);
+newReg.setHomeserverToken(AppServiceRegistration.generateToken());
+newReg.setAppServiceToken(AppServiceRegistration.generateToken());
+newReg.setSenderLocalpart("_ooye_bot");
+newReg.addRegexPattern("users", "@_ooye_.*", true);
+newReg.addRegexPattern("aliases", "#_ooye_.*", true);
+newReg.setProtocols(["discord"]); // For 3PID lookups
+newReg.setRateLimited(false);
+newReg.outputAsYaml("registration.yaml");