@honor-minigame/cli/sign/algorithm/base64.js

honor minigame pack cli

/* eslint-disable */

"use strict"

let Base64 = {},
  decoder

Base64.decode = function (a) {
  let i
  if (decoder === undefined) {
    let b64 =
        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
      ignore = "= \f\n\r\t\u00A0\u2028\u2029"
    decoder = []
    for (i = 0; i < 64; ++i) decoder[b64.charAt(i)] = i
    for (i = 0; i < ignore.length; ++i) decoder[ignore.charAt(i)] = -1
  }
  let out = []
  let bits = 0,
    char_count = 0
  for (i = 0; i < a.length; ++i) {
    let c = a.charAt(i)
    if (c == "=") break
    c = decoder[c]
    if (c == -1) continue
    if (c === undefined) throw "Illegal character at offset " + i
    bits |= c
    if (++char_count >= 4) {
      out[out.length] = bits >> 16
      out[out.length] = (bits >> 8) & 0xff
      out[out.length] = bits & 0xff
      bits = 0
      char_count = 0
    } else {
      bits <<= 6
    }
  }
  switch (char_count) {
    case 1:
      throw "Base64 encoding incomplete: at least 2 bits missing"
    case 2:
      out[out.length] = bits >> 10
      break
    case 3:
      out[out.length] = bits >> 16
      out[out.length] = (bits >> 8) & 0xff
      break
    default:
      break
  }
  return out
}

Base64.re =
  /-----BEGIN [^-]+-----([A-Za-z0-9+\/=\s]+)-----END [^-]+-----|begin-base64[^\n]+\n([A-Za-z0-9+\/=\s]+)====/
Base64.unarmor = function (a) {
  let m = Base64.re.exec(a)
  if (m) {
    if (m[1]) a = m[1]
    else if (m[2]) a = m[2]
    else throw "RegExp out of sync"
  }
  return Base64.decode(a)
}

export default Base64