nanmu42

package main

import (
	"errors"
	"fmt"
	"net"
)

func main() {

nanmu42

pragma solidity ^0.4.24;

interface Token {
  function transfer(address _to, uint256 _value) external returns (bool);
}

contract onlyOwner {
  address public owner;
  /** 
  * @dev The Ownable constructor sets the original `owner` of the contract to the sender

nanmu42

// change 10 to the length desired
[...Array(10)].map(i=>(~~(Math.random()*36)).toString(36)).join('')

nanmu42

// credits: https://stackoverflow.com/questions/22892120/how-to-generate-a-random-string-of-a-fixed-length-in-go

import (
	"math/rand"
	"time"
)

const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
const (
	letterIdxBits = 6                    // 6 bits to represent a letter index

nanmu42

FROM node:10.15 as builder
WORKDIR /project
COPY . .
RUN npm i && npm run lint && npm run build && rm -f dist/**/*.map

FROM nginx:stable
# COPY copies folder content, not folder itself
COPY --from=builder /project/dist /var/www
COPY ./nginx.conf /etc/nginx/conf.d/default.conf

nanmu42

#!/usr/bin/env bash
# preset veryslow: more time for more compressing rate
# -movflags +faststart optimizes for web browser so video can be played sooner.
# crf: small = better quality + bigger size; sane option between 17–28

SRC="$1"
CRF="$2"

ffmpeg -i "$SRC" -vcodec libx264 -crf "$CRF" -movflags +faststart -preset veryslow -profile:v high -level 4.1 web_libx264_crf_${CRF}_faststart_veryslow.mp4

nanmu42

#!/usr/bin/env bash

FOLDER=$1

MAX_WIDTH=1400
MAX_HEIGHT=1000

# resize, strip metadata and save in a lower quality
# aspect ratio will be kept.
find ${FOLDER} \( -iname '*.jpg' -o -iname '*.jpeg' -o -iname '*.png' \) -exec convert \{} -verbose -strip -quality 75 -resize "${MAX_WIDTH}x${MAX_HEIGHT}>" \{} \;

nanmu42

// geoOffset 计算从 (lon0, lat0) 经纬度（单位 °）移动 dx, dy 米后的新的经纬度
//
// 这个算法在100km以内有良好精度。
//
// source: https://stackoverflow.com/questions/2839533/adding-distance-to-a-gps-coordinate
func geoOffset(lon0, lat0, dx, dy float64) (lon, lat float64) {
  lon = lon0 + (180/math.Pi)*(dx/6378137)/math.Cos(lat0/180*math.Pi)
  lat = lat0 + (180/math.Pi)*(dy/6378137)

  return

nanmu42

echo | openssl s_client -servername www.github.com -connect www.github.com:443 2>/dev/null | openssl x509 -noout -dates

nanmu42

// QueryParams every key is a query param
type QueryParams map[string]QueryParam

// Scan satisfies SQL scanner interface
func (q *QueryParams) Scan(src interface{}) error {
	b, ok := src.([]byte)
	if !ok {
		return errors.New("type assertion to []byte failed")
	}