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import { WebhookClient, WebhookMessageOptions } from 'discord.js'
import axios from 'axios'
import type { Config } from './Config'
class DiscordWebhooks {
private config: Config
private webhookClient: WebhookClient
private uuidCache: Map<string, string>
public id: string | null
private token: string | null
constructor (config: Config) {
this.config = config
this.id = null
this.token = null
this.uuidCache = new Map()
}
public init () {
const { id, token } = this.parseDiscordWebhook(this.config.WEBHOOK_URL)
if (!id || !token) {
process.exit(1)
}
this.id = id
this.token = token
this.webhookClient = new WebhookClient({ id, token })
}
private parseDiscordWebhook (url: string) {
const re = /discord[app]?.com\/api\/webhooks\/([^\/]+)\/([^\/]+)/
// the is of the webhook
let id = null
let token = null
if (!re.test(url)) {
// In case the url changes at some point, I will warn if it still works
console.log('[WARN] The Webhook URL may not be valid!')
} else {
const match = url.match(re)
id = match?.[1]
token = match?.[2]
}
return { id, token }
}
private async getUUIDFromUsername (username: string): Promise<string | null> {
username = username.toLowerCase()
if (this.uuidCache.has(username)) return this.uuidCache.get(username)!
// otherwise fetch and store
try {
const response = await (
await axios.get((this.config.UUID_API_URL ?? 'https://api.mojang.com/users/profiles/minecraft/%username%').replace('%username%', username))
).data
const uuid = response.id
this.uuidCache.set(username, uuid)
if (this.config.DEBUG) console.log(`[DEBUG] Fetched UUID ${uuid} for username "${username}"`)
return uuid
} catch (e) {
console.log(`[ERROR] Could not fetch uuid for ${username}, falling back to Steve for the skin`)
return null
}
}
private getHeadUrl(uuid: string): string {
const url = this.config.HEAD_IMAGE_URL || 'https://mc-heads.net/avatar/%uuid%/256'
return url.replace(/%uuid%/, uuid)
}
private async makeDiscordWebhook (username: string, message: string) {
const defaultHead = this.getHeadUrl(this.config.DEFAULT_PLAYER_HEAD || 'c06f89064c8a49119c29ea1dbd1aab82') // MHF_Steve
const messsageOptions: WebhookMessageOptions = {
username,
content: message,
}
if (username === this.config.SERVER_NAME + ' - Server') { // use avatar for the server
if (this.config.SERVER_IMAGE) messsageOptions.avatarURL = this.config.SERVER_IMAGE
} else { // use avatar for player
const uuid = await this.getUUIDFromUsername(username)
messsageOptions.avatarURL = !!uuid ? this.getHeadUrl(uuid) : defaultHead
}
return messsageOptions
}
public async sendMessage (username: string, message: string) {
const webhookContent = await this.makeDiscordWebhook(username, message)
try {
await this.webhookClient!.send(webhookContent)
return true
} catch (e) {
console.log('[ERROR] Could not send Discord message through WebHook! Falling back to sending through bot.')
if (this.config.DEBUG) console.log(e)
return false
}
}
}
export default DiscordWebhooks
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