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Convert @room to @everyone using permissions

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Cadence Ember 2024-03-07 16:23:23 +13:00
commit f5ffc09fab
3 changed files with 201 additions and 14 deletions
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45
m2d/converters/event-to-message.js
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@ -384,19 +384,35 @@ 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, fetch: import("node-fetch")["default"]}} di
*/
async function checkWrittenMentions(content, guild, di) {
async function checkWrittenMentions(content, senderMxid, roomID, 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) {
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) + `<@${results[0].user.id}>` + content.slice(writtenMentionMatch.indices[1][1]),
ensureJoined: results[0].user
if (writtenMentionMatch[1] === "room") { // convert @room to @everyone
const powerLevels = await di.api.getStateEvent(roomID, "m.room.power_levels", "")
const userPower = powerLevels.users?.[senderMxid] || 0
if (userPower >= powerLevels.notifications?.room) {
return {
// @ts-ignore - typescript doesn't know about indices yet
content: content.slice(0, writtenMentionMatch.indices[1][0]-1) + `@everyone` + content.slice(writtenMentionMatch.indices[1][1]),
ensureJoined: [],
allowedMentionsParse: ["everyone"]
}
}
} else {
const results = await di.snow.guild.searchGuildMembers(guild.id, {query: writtenMentionMatch[1]})
if (results[0]) {
assert(results[0].user)
return {
// @ts-ignore - typescript doesn't know about indices yet
content: content.slice(0, writtenMentionMatch.indices[1][0]-1) + `<@${results[0].user.id}>` + content.slice(writtenMentionMatch.indices[1][1]),
ensureJoined: [results[0].user],
allowedMentionsParse: []
}
}
}
}
@ -427,6 +443,7 @@ const attachmentEmojis = new Map([
async function eventToMessage(event, guild, di) {
let displayName = event.sender
let avatarURL = undefined
const allowedMentionsParse = ["users", "roles"]
/** @type {string[]} */
let messageIDsToEdit = []
let replyLine = ""
@ -656,10 +673,11 @@ 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, guild, di)
const result = await checkWrittenMentions(node.nodeValue, event.sender, event.room_id, guild, di)
if (result) {
node.nodeValue = result.content
ensureJoined.push(result.ensureJoined)
ensureJoined.push(...result.ensureJoined)
allowedMentionsParse.push(...result.allowedMentionsParse)
}
}
// Check for incompatible backticks in code blocks
@ -727,10 +745,11 @@ 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\/[^ )]*/, "<$&>") // Put < > around any surviving matrix.to links to hide the URL previews
const result = await checkWrittenMentions(content, guild, di)
const result = await checkWrittenMentions(content, event.sender, event.room_id, guild, di)
if (result) {
content = result.content
ensureJoined.push(result.ensureJoined)
ensureJoined.push(...result.ensureJoined)
allowedMentionsParse.push(...result.allowedMentionsParse)
}
// Markdown needs to be escaped, though take care not to escape the middle of links
@ -787,7 +806,7 @@ async function eventToMessage(event, guild, di) {
const messages = chunks.map(content => ({
content,
allowed_mentions: {
parse: ["users", "roles"]
parse: allowedMentionsParse
},
username: displayNameShortened,
avatar_url: avatarURL