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• .. (вверх)
• [DIR] ..
• [FILE] AUTHORS.md
• [FILE] LICENSE
• [FILE] README.md
• [FILE] nacl-util.d.ts
• [FILE] nacl-util.js
• [FILE] nacl-util.min.js
• [FILE] package.json

Просмотр файла: nacl-util.js

// Written in 2014-2016 by Dmitry Chestnykh and Devi Mandiri.
// Public domain.
(function(root, f) {
  'use strict';
  if (typeof module !== 'undefined' && module.exports) module.exports = f();
  else if (root.nacl) root.nacl.util = f();
  else {
    root.nacl = {};
    root.nacl.util = f();
  }
}(this, function() {
  'use strict';

  var util = {};

  function validateBase64(s) {
    if (!(/^(?:[A-Za-z0-9+\/]{2}[A-Za-z0-9+\/]{2})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=)?$/.test(s))) {
      throw new TypeError('invalid encoding');
    }
  }

  util.decodeUTF8 = function(s) {
    if (typeof s !== 'string') throw new TypeError('expected string');
    var i, d = unescape(encodeURIComponent(s)), b = new Uint8Array(d.length);
    for (i = 0; i < d.length; i++) b[i] = d.charCodeAt(i);
    return b;
  };

  util.encodeUTF8 = function(arr) {
    var i, s = [];
    for (i = 0; i < arr.length; i++) s.push(String.fromCharCode(arr[i]));
    return decodeURIComponent(escape(s.join('')));
  };

  if (typeof atob === 'undefined') {
    // Node.js

    if (typeof Buffer.from !== 'undefined') {
       // Node v6 and later
      util.encodeBase64 = function (arr) { // v6 and later
          return Buffer.from(arr).toString('base64');
      };

      util.decodeBase64 = function (s) {
        validateBase64(s);
        return new Uint8Array(Array.prototype.slice.call(Buffer.from(s, 'base64'), 0));
      };

    } else {
      // Node earlier than v6
      util.encodeBase64 = function (arr) { // v6 and later
        return (new Buffer(arr)).toString('base64');
      };

      util.decodeBase64 = function(s) {
        validateBase64(s);
        return new Uint8Array(Array.prototype.slice.call(new Buffer(s, 'base64'), 0));
      };
    }

  } else {
    // Browsers

    util.encodeBase64 = function(arr) {
      var i, s = [], len = arr.length;
      for (i = 0; i < len; i++) s.push(String.fromCharCode(arr[i]));
      return btoa(s.join(''));
    };

    util.decodeBase64 = function(s) {
      validateBase64(s);
      var i, d = atob(s), b = new Uint8Array(d.length);
      for (i = 0; i < d.length; i++) b[i] = d.charCodeAt(i);
      return b;
    };

  }

  return util;

}));

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