tweb-i2p/src/lib/mtproto/bin_utils.ts

/*
 * https://github.com/morethanwords/tweb
 * Copyright (C) 2019-2021 Eduard Kuzmenko
 * https://github.com/morethanwords/tweb/blob/master/LICENSE
 * 
 * Originally from:
 * https://github.com/zhukov/webogram
 * Copyright (C) 2014 Igor Zhukov <igor.beatle@gmail.com>
 * https://github.com/zhukov/webogram/blob/master/LICENSE
 */


/* export function base64ToBlob(base64str: string, mimeType: string) {
  var sliceSize = 1024;
  var byteCharacters = atob(base64str);
  var bytesLength = byteCharacters.length;
  var slicesCount = Math.ceil(bytesLength / sliceSize);
  var byteArrays = new Array(slicesCount);

  for(var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
    var begin = sliceIndex * sliceSize;
    var end = Math.min(begin + sliceSize, bytesLength);

    var bytes = new Array(end - begin);
    for(var offset = begin, i = 0; offset < end; ++i, ++offset) {
      bytes[i] = byteCharacters[offset].charCodeAt(0);
    }
    byteArrays[sliceIndex] = new Uint8Array(bytes);
  }

  return blobConstruct(byteArrays, mimeType);
}

export function dataUrlToBlob(url: string) {
  // var name = 'b64blob ' + url.length
  // console.time(name)
  var urlParts = url.split(',');
  var base64str = urlParts[1];
  var mimeType = urlParts[0].split(':')[1].split(';')[0];
  var blob = base64ToBlob(base64str, mimeType);
  // console.timeEnd(name)
  return blob;
} */

export {};

/* export function bytesFromBigInt(bigInt: BigInteger, len?: number) {
  var bytes = bigInt.toByteArray();

  if(len && bytes.length < len) {
    var padding = [];
    for(var i = 0, needPadding = len - bytes.length; i < needPadding; i++) {
      padding[i] = 0;
    }
    if(bytes instanceof ArrayBuffer) {
      bytes = bufferConcat(padding, bytes);
    } else {
      bytes = padding.concat(bytes);
    }
  } else {
    while (!bytes[0] && (!len || bytes.length > len)) {
      bytes = bytes.slice(1);
    }
  }

  return bytes;
} */