struCoder

MD5 checksum

In order to find the MD5 checksum value of a file using the following command in the terminal.
$ md5 /path/to/file

To find the SHA1 checksum value use the following command in the terminal.
$ shasum -a 1 /path/to/file

To find the SHA256 checksum use the following command in the terminal.
$ shasum -a 256 /path/to/file

struCoder

FROM alpine:3.4


ENV TZ 'Asia/Shanghai'

RUN apk upgrade --no-cache && \
    apk add --no-cache bash tzdata && \
    mkdir /lib64 && ln -s /lib/libc.musl-x86_64.so.1 /lib64/ld-linux-x86-64.so.2 && \
    ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
    echo "Asia/Shanghai" > /etc/timezone && \

struCoder

#!/bin/sh

version="0.1.0"


UNAME=$(uname)
# Check to see if it starts with MINGW.
if [ "$UNAME" ">" "MINGW" -a "$UNAME" "<" "MINGX" ] ; then
    echo "current release do not support windows"
    exit 1

struCoder

// https://cnodejs.org/topic/516e0ab46d382773067a5473
var http = require('http');
var url = require('url');
var Iconv = require('iconv').Iconv;
var crypto = require('crypto');
var server = http.createServer(function(req, res){
  var path = url.parse(req.url).pathname;

  if(path == '/favicon.ico'){
    res.end('');

struCoder

'use strict';

const fs = require('fs');
const iconv = require('iconv-lite');
const path = require('path');
const p = console.log;

function readText(path) {
  let buf = fs.readFileSync(path);
  return iconv.decode(buf, 'gbk');

struCoder

package main

import (
	"bufio"
	"crypto/md5"
	"crypto/sha1"
	"crypto/sha256"
	"crypto/sha512"
	"encoding/hex"
	"fmt"

struCoder

// from here: http://marcio.io/2015/07/handling-1-million-requests-per-minute-with-golang/
// great example !!
func payloadHandler(w http.ResponseWriter, r *http.Request) {

    if r.Method != "POST" {
		w.WriteHeader(http.StatusMethodNotAllowed)
		return
	}

    // Read the body into a string for json decoding

struCoder

use fmpeg to compress mp4 video

ffmpeg -i "input.MP4" -vb xxxk -vcodec libx264 -ab 64k -ar 44100 -y "output_.MP4"

xxxk: You should adjust its size according to your needs.

For example i use 2000k to compress Gopro mp4 videos.

struCoder

function customRouter(originRouter, prefix) {
  let urlArr = [];
  let slice = [].slice;
  let methods = ['get', 'post', 'delete', 'put'];
  function array2ArrayLike(array) {
    let arrayLike = {
      length: 0
    }

    for(let i = 0; i < array.length; i++) {

struCoder

local redis_c = require "resty.redis"


local ok, new_tab = pcall(require, "table.new")
if not ok or type(new_tab) ~= "function" then
    new_tab = function (narr, nrec) return {} end
end


local _M = new_tab(0, 155)