CABaggageData2.0/src/utils/des.js

import cryptoJs from "crypto-js";

export const sha1_to_base64 = sha1 => {
  let digits =
    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  let base64_rep = "";
  let ascv = null;
  let bit_arr = 0;
  let bit_num = 0;
  for (let n = 0; n < sha1.length; ++n) {
    if (sha1[n] >= "A" && sha1[n] <= "Z") {
      ascv = sha1.charCodeAt(n) - 55;
    } else if (sha1[n] >= "a" && sha1[n] <= "z") {
      ascv = sha1.charCodeAt(n) - 87;
    } else {
      ascv = sha1.charCodeAt(n) - 48;
    }
    bit_arr = (bit_arr << 4) | ascv;
    bit_num += 4;
    if (bit_num >= 6) {
      bit_num -= 6;
      base64_rep += digits[bit_arr >>> bit_num];
      bit_arr &= ~(-1 << bit_num);
    }
  }
  if (bit_num > 0) {
    bit_arr <<= 6 - bit_num;
    base64_rep += digits[bit_arr];
  }
  let padding = base64_rep.length % 4;
  if (padding > 0) {
    for (let n = 0; n < 4 - padding; ++n) {
      base64_rep += "=";
    }
  }
  return base64_rep;
};