dynatrace-cordova-outsystems-plugin/node_modules/uuid/lib/sha1-browser.js

This plugin gives you the ability to use the Dynatrace instrumentation in your hybrid application (Cordova, Ionic, ..). It uses the Mobile Agent, the JavaScript Agent and the Javascript Bridge. The Mobile Agent will give you all device specific values con

// Adapted from Chris Veness' SHA1 code at
// http://www.movable-type.co.uk/scripts/sha1.html
'use strict';

function f(s, x, y, z) {
  switch (s) {
    case 0: return (x & y) ^ (~x & z);
    case 1: return x ^ y ^ z;
    case 2: return (x & y) ^ (x & z) ^ (y & z);
    case 3: return x ^ y ^ z;
  }
}

function ROTL(x, n) {
  return (x << n) | (x>>> (32 - n));
}

function sha1(bytes) {
  var K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6];
  var H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0];

  if (typeof(bytes) == 'string') {
    var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape
    bytes = new Array(msg.length);
    for (var i = 0; i < msg.length; i++) bytes[i] = msg.charCodeAt(i);
  }

  bytes.push(0x80);

  var l = bytes.length/4 + 2;
  var N = Math.ceil(l/16);
  var M = new Array(N);

  for (var i=0; i<N; i++) {
    M[i] = new Array(16);
    for (var j=0; j<16; j++) {
      M[i][j] =
        bytes[i * 64 + j * 4] << 24 |
        bytes[i * 64 + j * 4 + 1] << 16 |
        bytes[i * 64 + j * 4 + 2] << 8 |
        bytes[i * 64 + j * 4 + 3];
    }
  }

  M[N - 1][14] = ((bytes.length - 1) * 8) /
    Math.pow(2, 32); M[N - 1][14] = Math.floor(M[N - 1][14]);
  M[N - 1][15] = ((bytes.length - 1) * 8) & 0xffffffff;

  for (var i=0; i<N; i++) {
    var W = new Array(80);

    for (var t=0; t<16; t++) W[t] = M[i][t];
    for (var t=16; t<80; t++) {
      W[t] = ROTL(W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16], 1);
    }

    var a = H[0];
    var b = H[1];
    var c = H[2];
    var d = H[3];
    var e = H[4];

    for (var t=0; t<80; t++) {
      var s = Math.floor(t/20);
      var T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[t] >>> 0;
      e = d;
      d = c;
      c = ROTL(b, 30) >>> 0;
      b = a;
      a = T;
    }

    H[0] = (H[0] + a) >>> 0;
    H[1] = (H[1] + b) >>> 0;
    H[2] = (H[2] + c) >>> 0;
    H[3] = (H[3] + d) >>> 0;
    H[4] = (H[4] + e) >>> 0;
  }

  return [
    H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff,
    H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff,
    H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff,
    H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff,
    H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff
  ];
}

module.exports = sha1;