12345678910111213141516171819202122232425262728293031
import { DarkflareError } from './DarkflareError.ts'import { decode, hash } from './utilities.ts'
export async function decrypt(message: string, secret?: string) {  if (!secret) {    const c = window.__d.encryption
    if (!c || !c.secretKey)      throw new DarkflareError('crypto', 'CRYPTO NOT CONFIGURED')
    secret = c.secretKey  }
  try {    const iv = atob(message).slice(0,12)
    , alg = { name: 'AES-GCM', iv: new Uint8Array(Array.from(iv).map(ch => ch.charCodeAt(0))) }
    , key = await crypto.subtle.importKey('raw', await hash(secret), alg, false, ['decrypt'])
    , cipherStr = atob(message).slice(12)    , cipherUint8 = new Uint8Array(Array.from(cipherStr).map(ch => ch.charCodeAt(0)))
    , buf = await crypto.subtle.decrypt(alg, key, cipherUint8)
    return decode(buf)  } catch (_err) {    throw new DarkflareError('crypto', 'CANNOT DECRYPT MESSAGE')  }}