VillanCh / unquote_cstyle_string.go

Created March 11, 2022 10:04

解析C风格的字符串 Quote

	func UnquoteCStyleString(raw string) (string, error) {
	state := ""
	results := ""
	hexBuffer := ""

	scanner := bufio.NewScanner(bytes.NewBufferString(raw))
	scanner.Split(bufio.ScanBytes)

	index := 0
	for scanner.Scan() {

VillanCh / icmpping.go

Created January 14, 2020 08:33

ICMP 协议 Ping

	// Copyright 2009 The Go Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style
	// license that can be found in the LICENSE file.

	// taken from http://golang.org/src/pkg/net/ipraw_test.go

	package ping

	import (
	"bytes"

VillanCh / 2fa.go

Created January 8, 2020 07:46

2fa 双因子认证

	// 2fa provides a simple end-to-end example of server side support for google authenticator.
	// It sets up a secret for a single user, generates a QR code as a PNG file that the user
	// can scan into Google Authenticator, and then prompts the user for a token that the user
	// copies from the Authenticator app. We validate the token and print out whether it is valid or not.
	package main

	import (
	// "crypto/rand"
	"encoding/base32"
	"fmt"

VillanCh / 公共资源.txt

Created September 9, 2018 02:54

公共资源

	根据文件头信息判断文件后缀或者mimetypes: https://www.garykessler.net/library/file_sigs.html


	mime公开信息：https://cgit.freedesktop.org/xdg/shared-mime-info/

VillanCh / exec_with_timeout.go

Created April 22, 2018 06:41

Golang: Execute with a Timeout

	package main

	import (
	"bytes"
	"fmt"
	"os/exec"
	"time"
	)

	type killCmdForce func(exec.Cmd)

VillanCh / yaml_load_env.py

Created April 7, 2018 03:19

Using PyYaml load env vars

	#
	# load yaml by env variables
	#
	import yaml, os, re

	pattern = re.compile( '^\$\{(.?)(:(.))?\}$' )
	yaml.add_implicit_resolver ( "!env", pattern )
	def env_construction(loader, node):
	value = loader.construct_scalar(node)
	env_var_name, _, default = pattern.match(value).groups()

VillanCh / tree.md

Created January 23, 2018 13:28 — forked from upsuper/tree.md

一行 Python 实现树

使用 Python 内置的 defaultdict，我们可以很容易的定义一个树形数据结构：

def tree(): return defaultdict(tree)

就是这样！

v1ll4n VillanCh

一行 Python 实现树