cadence/out-of-your-element
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out-of-your-element
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Convert @room to @everyone using permissions

This commit is contained in:
Cadence Ember 2024-03-07 16:23:23 +13:00
parent 25cd8cb289
commit f5ffc09fab
3 changed files with 201 additions and 14 deletions
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2
m2d/actions/channel-webhook.js
View File

@ -57,7 +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, disableEveryone: true})
return discord.snow.webhook.executeWebhook(webhook.id, webhook.token, data, {wait: true, thread_id: threadID})
})
return result
}

45
m2d/converters/event-to-message.js
View File

@ -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

168
m2d/converters/event-to-message.test.js
View File

@ -3786,6 +3786,174 @@ test("event2message: guessed @mentions work with other matrix bridge old users",
)
})
test("event2message: @room converts to @everyone and is allowed when the room doesn't restrict who can use it (plaintext body)", async t => {
let called = 0
t.deepEqual(
await eventToMessage({
type: "m.room.message",
sender: "@cadence:cadence.moe",
content: {
msgtype: "m.text",
body: "@room dinner's ready",
},
room_id: "!kLRqKKUQXcibIMtOpl:cadence.moe",
event_id: "$SiXetU9h9Dg-M9Frcw_C6ahnoXZ3QPZe3MVJR5tcB9A"
}, data.guild.general, {
api: {
getStateEvent(roomID, type, key) {
called++
t.equal(roomID, "!kLRqKKUQXcibIMtOpl:cadence.moe")
t.equal(type, "m.room.power_levels")
t.equal(key, "")
return {
users: {},
notifications: {
room: 0
}
}
}
}
}),
{
messagesToDelete: [],
messagesToEdit: [],
messagesToSend: [{
username: "cadence [they]",
content: "@everyone dinner's ready",
avatar_url: undefined,
allowed_mentions: {
parse: ["users", "roles", "everyone"]
}
}],
ensureJoined: []
}
)
})
test("event2message: @room converts to @everyone but is not allowed when the room restricts who can use it", async t => {
let called = 0
t.deepEqual(
await eventToMessage({
type: "m.room.message",
sender: "@cadence:cadence.moe",
content: {
msgtype: "m.text",
body: "wrong body",
format: "org.matrix.custom.html",
formatted_body: "@room dinner's ready"
},
room_id: "!kLRqKKUQXcibIMtOpl:cadence.moe",
event_id: "$SiXetU9h9Dg-M9Frcw_C6ahnoXZ3QPZe3MVJR5tcB9A"
}, data.guild.general, {
api: {
getStateEvent(roomID, type, key) {
called++
t.equal(roomID, "!kLRqKKUQXcibIMtOpl:cadence.moe")
t.equal(type, "m.room.power_levels")
t.equal(key, "")
return {
users: {},
notifications: {
room: 20
}
}
}
}
}),
{
messagesToDelete: [],
messagesToEdit: [],
messagesToSend: [{
username: "cadence [they]",
content: "@room dinner's ready",
avatar_url: undefined,
allowed_mentions: {
parse: ["users", "roles"]
}
}],
ensureJoined: []
}
)
})
test("event2message: @room converts to @everyone and is allowed if the user has sufficient power to use it", async t => {
let called = 0
t.deepEqual(
await eventToMessage({
type: "m.room.message",
sender: "@cadence:cadence.moe",
content: {
msgtype: "m.text",
body: "wrong body",
format: "org.matrix.custom.html",
formatted_body: "@room dinner's ready"
},
room_id: "!kLRqKKUQXcibIMtOpl:cadence.moe",
event_id: "$SiXetU9h9Dg-M9Frcw_C6ahnoXZ3QPZe3MVJR5tcB9A"
}, data.guild.general, {
api: {
getStateEvent(roomID, type, key) {
called++
t.equal(roomID, "!kLRqKKUQXcibIMtOpl:cadence.moe")
t.equal(type, "m.room.power_levels")
t.equal(key, "")
return {
users: {
"@cadence:cadence.moe": 20
},
notifications: {
room: 20
}
}
}
}
}),
{
messagesToDelete: [],
messagesToEdit: [],
messagesToSend: [{
username: "cadence [they]",
content: "@everyone dinner's ready",
avatar_url: undefined,
allowed_mentions: {
parse: ["users", "roles", "everyone"]
}
}],
ensureJoined: []
}
)
})
test("event2message: @room in the middle of a link is not converted", async t => {
t.deepEqual(
await eventToMessage({
type: "m.room.message",
sender: "@cadence:cadence.moe",
content: {
msgtype: "m.text",
body: "wrong body",
format: "org.matrix.custom.html",
formatted_body: `<a href="https://github.com/@room/repositories">https://github.com/@room/repositories</a> https://github.com/@room/repositories`
},
room_id: "!kLRqKKUQXcibIMtOpl:cadence.moe",
event_id: "$SiXetU9h9Dg-M9Frcw_C6ahnoXZ3QPZe3MVJR5tcB9A"
}),
{
messagesToDelete: [],
messagesToEdit: [],
messagesToSend: [{
username: "cadence [they]",
content: "https://github.com/@room/repositories https://github.com/@room/repositories",
avatar_url: undefined,
allowed_mentions: {
parse: ["users", "roles"]
}
}],
ensureJoined: []
}
)
})
slow()("event2message: unknown emoji at the end is reuploaded as a sprite sheet", async t => {
const messages = await eventToMessage({
type: "m.room.message",