A timeline of the last four years of detecting good old window.localStorage
.
October 2009: 5059daa
# How to generate a secret key with Python | |
# via http://flask.pocoo.org/docs/quickstart/ | |
import os | |
os.urandom(24) |
#!/usr/bin/env python | |
""" | |
Very simple HTTP server in python (Updated for Python 3.7) | |
Usage: | |
./dummy-web-server.py -h | |
./dummy-web-server.py -l localhost -p 8000 | |
Send a GET request: |
package main | |
import ( | |
"log" | |
"net/http" | |
) | |
func redirect(w http.ResponseWriter, r *http.Request) { | |
http.Redirect(w, r, "http://www.google.com", 301) |
A timeline of the last four years of detecting good old window.localStorage
.
October 2009: 5059daa
" Use Vim settings, rather then Vi settings (much better!). | |
" This must be first, because it changes other options as a side effect. | |
set nocompatible | |
" ================ General Config ==================== | |
set number "Line numbers are good | |
set backspace=indent,eol,start "Allow backspace in insert mode | |
set history=1000 "Store lots of :cmdline history | |
set showcmd "Show incomplete cmds down the bottom |
import os | |
import asyncio | |
import sys | |
from asyncio.streams import StreamWriter, FlowControlMixin | |
reader, writer = None, None | |
@asyncio.coroutine | |
def stdio(loop=None): |
#!/usr/bin/env python3 | |
# inspired by https://github.com/busyloop/lolcat | |
import sys | |
import re | |
import os | |
from math import ceil | |
from colorsys import hsv_to_rgb | |
from unicodedata import east_asian_width |
在这篇笔记的最前面,我一定要说,网络协议的设计者都是天才。
使用SMTP发送邮件其实十分简单,就如同我们和人交谈别无二致。这里我们使用SMTP协议发送一封邮件,小小体会一下网络协议之美。我在这里使用Windows平台上的VS2013 作为编码环境,使用C++,和WinSock中的socket函数通信。
SMTP--Simple Mail Transfer Protocol,简单邮件传输协议。这是一个应用层协议,我们可以使用此协议,发送简单的邮件。SMTP基于TCP协议,在不使用SSL,TLS加密的SMTP协议中,我们默认使用端口号25,在使用SSL\TLS的SMTP协议中,使用端口号465\587。
一次传输邮件的过程,其实就是一次和服务器对话的过程。为了标识这些对话中的各种动作,我们需要使用语言来和服务器沟通。例如客户端发送给服务器一条信息EHLO(Hello),服务器就知道这个客户端要给我发邮件了,这类似于我们人与人之间打招呼,我和服务器说:我要发邮件了!!!,于是服务器知道我要发邮件了,会给我回答一声:发吧。在SMTP协议中,也是同样,协议会返回一个标识码,来告诉我们服务器现在的状态,在我们打招呼之后,服务器一般会返回250,这告诉我们:“一切OK,放马过来吧”。
package main | |
import ( | |
"fmt" | |
"net" | |
"os" | |
"time" | |
) | |
const ( |