init

mc_test/node_modules/tweetnacl-util/nacl-util.js

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+// 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;
+
+}));