fix build issues and add typedoc

1 files changed, 30 insertions, 36 deletions

diff --git a/node_modules/create-hmac/browser.js b/node_modules/create-hmac/browser.js
index b610781b2..a5c9b61ea 100644
--- a/node_modules/create-hmac/browser.js
+++ b/node_modules/create-hmac/browser.js
@@ -1,68 +1,62 @@
-'use strict';
-var createHash = require('create-hash/browser');
+'use strict'
 var inherits = require('inherits')
+var Legacy = require('./legacy')
+var Base = require('cipher-base')
+var Buffer = require('safe-buffer').Buffer
+var md5 = require('create-hash/md5')
+var RIPEMD160 = require('ripemd160')
 
-var Transform = require('stream').Transform
+var sha = require('sha.js')
 
-var ZEROS = new Buffer(128)
-ZEROS.fill(0)
+var ZEROS = Buffer.alloc(128)
 
-function Hmac(alg, key) {
-  Transform.call(this)
-  alg = alg.toLowerCase()
+function Hmac (alg, key) {
+  Base.call(this, 'digest')
   if (typeof key === 'string') {
-    key = new Buffer(key)
+    key = Buffer.from(key)
   }
 
   var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
 
   this._alg = alg
   this._key = key
-
   if (key.length > blocksize) {
-    key = createHash(alg).update(key).digest()
-
+    var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
+    key = hash.update(key).digest()
   } else if (key.length < blocksize) {
     key = Buffer.concat([key, ZEROS], blocksize)
   }
 
-  var ipad = this._ipad = new Buffer(blocksize)
-  var opad = this._opad = new Buffer(blocksize)
+  var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+  var opad = this._opad = Buffer.allocUnsafe(blocksize)
 
   for (var i = 0; i < blocksize; i++) {
     ipad[i] = key[i] ^ 0x36
     opad[i] = key[i] ^ 0x5C
   }
-
-  this._hash = createHash(alg).update(ipad)
+  this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
+  this._hash.update(ipad)
 }
 
-inherits(Hmac, Transform)
+inherits(Hmac, Base)
 
-Hmac.prototype.update = function (data, enc) {
-  this._hash.update(data, enc)
-
-  return this
-}
-
-Hmac.prototype._transform = function (data, _, next) {
+Hmac.prototype._update = function (data) {
   this._hash.update(data)
-
-  next()
 }
 
-Hmac.prototype._flush = function (next) {
-  this.push(this.digest())
-
-  next()
-}
-
-Hmac.prototype.digest = function (enc) {
+Hmac.prototype._final = function () {
   var h = this._hash.digest()
-
-  return createHash(this._alg).update(this._opad).update(h).digest(enc)
+  var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg)
+  return hash.update(this._opad).update(h).digest()
 }
 
-module.exports = function createHmac(alg, key) {
+module.exports = function createHmac (alg, key) {
+  alg = alg.toLowerCase()
+  if (alg === 'rmd160' || alg === 'ripemd160') {
+    return new Hmac('rmd160', key)
+  }
+  if (alg === 'md5') {
+    return new Legacy(md5, key)
+  }
   return new Hmac(alg, key)
 }