From 38c2c6f816b6cefcf703bd77e20ed3667b476e87 Mon Sep 17 00:00:00 2001
From: Chen Yi-Cyuan <emn178@gmail.com>
Date: Sat, 4 Jan 2014 16:06:50 +0800
Subject: [PATCH] Support node.js

---
 README.md          | 17 +++++++++++++++++
 package.json       | 23 +++++++++++++++++++++++
 src/md5.js         | 13 ++++++++++---
 tests/debug.js     | 35 ++++++-----------------------------
 tests/node-test.js |  3 +--
 5 files changed, 57 insertions(+), 34 deletions(-)
 create mode 100644 package.json

diff --git a/README.md b/README.md
index 6655043..129288a 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,18 @@
 # js-md5
 This is a simple MD5 hash function for JavaScript supports UTF-8 encoding.
 
+## Install
+For node.js, you can use this command to install:
+
+    npm install js-md5
+
 ## Usage
+If you use node.js, you should require the module first:
+
+    var md5 = require('js-md5');
+
+And you could use like this:
+
     md5('Message to hash');
 
 ## Example
@@ -28,6 +39,8 @@ Output
 ## Run Tests
 You can open `tests/index.html` in browser or use node.js to run `node tests/node-test.js` for test.
 
+You also could use `npm test` instance of `node tests/node-test.js`.
+
 ## Extensions
 ### jQuery
 If you prefer jQuery style, you can add following code to add a jQuery extension.
@@ -49,3 +62,7 @@ Code
 And then you could use like this:
 
     'message'.md5();
+
+## Contact
+The project's website is located at https://github.com/emn178/js-md5
+Author: emn178@gmail.com
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..9e1540f
--- /dev/null
+++ b/package.json
@@ -0,0 +1,23 @@
+{
+  "name": "js-md5",
+  "version": "0.1.0",
+  "description": "A simple MD5 hash function for JavaScript supports UTF-8 encoding.",
+  "main": "src/md5.js",
+  "scripts": {
+    "test": "node tests/node-test.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/emn178/js-md5.git"
+  },
+  "keywords": [
+    "md5",
+    "hash",
+    "encryption"
+  ],
+  "author": "emn178 <emn178@gmail.com>",
+  "homepage": "https://github.com/emn178/js-md5",
+  "bugs": {
+    "url": "https://github.com/emn178/js-md5/issues"
+  }
+}
diff --git a/src/md5.js b/src/md5.js
index 1f1cdd7..8592ffa 100644
--- a/src/md5.js
+++ b/src/md5.js
@@ -1,4 +1,6 @@
-(function(window, undefined){
+(function(root, undefined){
+  'use strict';
+
   var HEX_CHARS = "0123456789abcdef";
   var HEX_TABLE = {
     '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,
@@ -28,7 +30,7 @@
            0X6FA87E4F, 0XFE2CE6E0, 0XA3014314, 0X4E0811A1,
            0XF7537E82, 0XBD3AF235, 0X2AD7D2BB, 0XEB86D391];
 
-  window.md5 = function(message) {
+  var md5 = function(message) {
     var blocks = hasUTF8(message) ? UTF8toBlocks(message) : ASCIItoBlocks(message);
     var h0 = 0x67452301;
     var h1 = 0xEFCDAB89;
@@ -141,4 +143,9 @@
     blocks[blockCount - 2] = bytes << 3; // bytes * 8
     return blocks;
   };
-}(window));
+
+  if(typeof(module) != 'undefined')
+    module.exports = md5;
+  else if(root)
+    root.md5 = md5;
+}(this));
diff --git a/tests/debug.js b/tests/debug.js
index a9460b7..ceceea8 100644
--- a/tests/debug.js
+++ b/tests/debug.js
@@ -1,35 +1,12 @@
-(function(window){
-  //console.time implementation for IE
-  if(window.console && typeof(window.console.time) == "undefined") {
-      console.time = function(name, reset){
-          if(!name) { return; }
-          var time = new Date().getTime();
-          if(!console.timeCounters) { console.timeCounters = {} };
-          var key = "KEY" + name.toString();
-          if(!reset && console.timeCounters[key]) { return; }
-              console.timeCounters[key] = time;
-          };
-
-      console.timeEnd = function(name){
-          var time = new Date().getTime();
-          if(!console.timeCounters) { return; }
-          var key = "KEY" + name.toString();
-          var timeCounter = console.timeCounters[key];
-          if(timeCounter) {
-              var diff = time - timeCounter;
-              var label = name + ": " + diff + "ms";
-              console.info(label);
-              delete console.timeCounters[key];
-          }
-          return diff;
-      };
-  }
-
+(function(root){
   var assert = function (title, expect, actual) {
     if(expect == actual)
       console.log(title + ': true');
     else
       console.log(title + ': false', 'Except:' + expect, 'Actual: ' + actual);
   };
-  window.assert = assert;
-})(window);
+  if(typeof(module) != 'undefined')
+    global.assert = assert;
+  else if(root)
+    root.assert = assert;
+})(this);
diff --git a/tests/node-test.js b/tests/node-test.js
index ec3c6b4..c1c6447 100644
--- a/tests/node-test.js
+++ b/tests/node-test.js
@@ -1,4 +1,3 @@
-window = global;
-require('../src/md5.js');
+global.md5 = require('../src/md5.js');
 require('./debug.js');
 require('./test.js');