Wu Wenbin wuwb

kbtflash

Some time ago, I reversed the protocol used by KBT Pure Pro for flashing its firmware in a hope of being able to flash a custom firmware (or do some BadUSB demonstration). This script is able to upload a firmware binary onto the keyboard.

The binary is obfuscated (already solved on SE) However, the firmware has a 32-bit checksum (at the end of the image), which ~~does not seem to be any of the commonly used ones (there is this)~~ (EDIT: Actually turned out to be a standard one, see edit below). If the uploaded firmware checksum does not match, the keyboard stays in the bootloader.

mathclub是最近做的一个个人项目，帮助考SAT的同学通过在线做题、回顾、问答提高成绩。用户功能有：计次/计时做题、成绩单、错题分布、错题回顾、提问、汇总以及注册登录。管理后台主要是题库管理、学员管理、成绩单管理、问题回复。怎么看都像学校里的课设，的确项目本身并不出奇，开发上选用的一些方案或许更有意思。

整个项目一个人从产品需求、原型设计、前后端开发到部署历时2周左右。可以从截图上感受一下：

技术选型上服务端是Node.js，应用框架选了老牌的Express（4.x变化挺大不少中间件都废了），数据服务用的是MongoLab（MongoDB的云服务平台），图片上传用的是又拍云，程序部署在Nodejitsu上。模板引擎没选主流的Jade或ejs，而是用Express React Views它实现了在服务端渲染React组件。前端框架是用React，这次有意想追求前后端全部组件化的组织。之前是用Webpack实现CommonJS模块打包，这次用Browserify配置更简单，它有丰富的transform很赞，其中的reactify转换React的JSX很完美。CSS用Sass＋autoprefixer让人省心。将这一切串起来的自动构建工具是Gulp。我其实崇尚用最精简的工具组合开发，上述组合在我看来比较精简了。（帖纸留念）

![image](http://satexam.b0.upaiyu

1.同一台电脑可以有2个git账号（不同网站的）

首先不同网站，当然可以使用同一个邮箱，比如我的github，gitlab，bitbucket的账号都是monkeysuzie[at]gmail.com 这时候不用担心密钥的问题，因为这些网站push pull 认证的唯一性的是邮箱比如我的windows 上 2个账号一个gitlab 一个github （用的都是id_rsa）

host github
  hostname github.com
  Port 22

host gitlab.zjut.com

OS X Preferences

most of these require logout/restart to take effect

# Enable character repeat on keydown
defaults write -g ApplePressAndHoldEnabled -bool false

# Set a shorter Delay until key repeat

	import futures
	import requests
	from Queue import Queue

	XML_URL = "http://www.freebuf.com/xmlrpc.php"
	USER_FILE = "username.txt"
	PASS_FILE = "password.txt"
	THREAD_NUM = 20

	data = """<?xml version="1.0" encoding="UTF-8"?><methodCall><methodName>wp.getUsersBlogs</methodName><params><param><value>%s</value></param><param><value>%s</value></param></params></methodCall>"""

	/**
	* A simple co
	* @param {Function} fn Generator Function
	* @return {Function} callback
	*/
	function co(fn) {
	return function(done) {
	done = done \|\| function() {};

	var gen = fn();

	Post.findById(postId, function (err, post) {
	// handle errors ..
	post.comments.push({ body: someText, user: userId });
	post.save(callback);
	})

	var commentSchema = new Schema({
	body: String
	, user: Schema.ObjectId
	, created: { type: Date, default: Date.now }
	});
	var postSchema = new Schema({ comments: [commentSchema] });
	var Post = mongoose.model('Post', postSchema);

	var express = require('express');
	var app = express.createServer();

	require('./settings').boot(app);

	app.dynamicHelpers({
	base: function(){
	// return the app's mount-point
	// so that urls can adjust. For example
	// if you run this example /post/add works

	/* The API controller
	Exports 3 methods:
	* post - Creates a new thread
	* list - Returns a list of threads
	* show - Displays a thread and its posts
	*/


	var Thread = require('../models/thread.js');
	var Post = require('../models/post.js');