Yggdrasil/modules/utils.js

const path = require("node:path")
const logger = require("./logger")
const crypto = require("node:crypto")
const certificatesManager = require("./certificatesManager")

async function getRegistrationCountryFromIp(ipAddress) {
    const apiUrl = `https://ip-api.com/json/${ipAddress}?fields=countryCode`

    try {
        const response = await fetch(apiUrl)
        if (!response.ok) {
            return "FR"
        }

        const data = await response.json()
        if (data && data.countryCode) {
            const countryCode = data.countryCode
            return countryCode
        } else {
            return "FR"
        }

    } catch (error) {
        return "??"
    }
}

function signProfileData(dataBase64) {
    const serverKeys = certificatesManager.getKeys()
    try {
        const privateKey = serverKeys.playerCertificateKeys.private
        const signer = crypto.createSign("SHA1")
        signer.update(dataBase64)
        signer.end()
        return signer.sign(privateKey, "base64")
    } catch (err) {
        console.error("Signing failed:", err)
        return null
    }
}

function addDashesToUUID(uuid) {
    if (typeof uuid !== "string" || uuid.length !== 32) {
        return uuid
    }

    return (
        uuid.slice(0, 8) + "-" +
        uuid.slice(8, 12) + "-" +
        uuid.slice(12, 16) + "-" +
        uuid.slice(16, 20) + "-" +
        uuid.slice(20)
    )
}

module.exports = {
    getRegistrationCountryFromIp,
    addDashesToUUID,
    signProfileData
}