azechi’s gists

azechi / oauth2_authz_code_grant.py

Last active May 14, 2022 00:12

Get OAuth 2.0 Refresh Tokens

	async def oauth2_authz_code_grant(scope, client_id, client_secret, auth_uri, token_uri, redirect_port=0, timeout=60):
	code, redirect_uri = await get_authorization_code(scope, client_id, auth_uri, redirect_port, timeout)
	return get_token(code, redirect_uri, client_id, client_secret, token_uri)


	async def get_authorization_code(scope, client_id, auth_uri, port=0, timeout=60):
	from asyncio import start_server, wait_for, Event, TimeoutError
	from urllib.parse import urlencode, urlparse, parse_qs

	event = Event()

azechi / read_pin.sh

Last active February 13, 2022 03:34

Dump Raspberry Pi GPIO edge detection into VCD format file with pigpio notifications and pig2vcd.

	#!/usr/bin/env bash

	b=0
	for i
	do
	b=$(($b \| $((1 << $i))))
	done

	n=`pigs no`
	pig2vcd </dev/pigpio$n >report_pin.vcd &

azechi / AEHA_IR_Transmitter.ino

Last active February 18, 2022 01:24

Infared remote control for AEHA format with Arduino Uno.

azechi / client.js

Created January 24, 2021 01:48

discord.js, voice channel, streaming, raw PCM, child process

	const BOT_TOKEN = process.env.DISCORD_BOT_TOKEN;
	const CHANNEL_ID = process.env.VOICE_CHANNEL_ID;

	const { spawn } = require('child_process');
	const Discord = require('discord.js');
	const prism = require('prism-media');

	const client = new Discord.Client();

	client.on('ready', async () => {

azechi / pkce.js

Created September 26, 2020 05:16

JavaScript RFC7636 PKCE code_verifier and SHA-256 code_challenge with Web Cryptography API

	//https://tools.ietf.org/html/rfc7636#appendix-B

	const code_verifier = btoa(
	String.fromCharCode(...crypto.getRandomValues(new Uint8Array(32)))
	).replace(/\/\|\+\|=/g, (x) => ({ "/": "_", "+": "-", "=": "" }[x]));

	const hash = await crypto.subtle.digest(
	"SHA-256",
	new Uint8Array([...code_verifier].map((e) => e.charCodeAt(0)))
	);

azechi / Dockerfile

Created April 10, 2020 13:40

docker discordrb

	FROM ruby AS builder
	COPY Gemfile Gemfile.lock ./
	RUN env DEBCONF_NOWARNINGS=yes bundle install -j "$(getconf _NPROCESSORS_ONLN)" --retry 3 \
	&& rm -rf /usr/local/bundle/cache/*.gem \
	&& find /usr/local/bundle/gems/ -name '*.c' -delete \
	&& find /usr/local/bundle/gems/ -name '*.o' -delete

	# app
	FROM ruby:slim
	RUN apt-get update \

azechi / win32api_WindowRect.ipynb

Created December 3, 2019 00:47

windows api, QueryFullProcessImageName, DwmGetWindowAttribute,

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azechi / GetIPAddress.js

Last active April 24, 2019 01:38

Find out IP Address on the public side of a NAT using public stun server

	function getIPAddress() {

	const S = "stun.l.google.com:19302";

	return new Promise(resolve=>{

	const pc = new RTCPeerConnection({
	"iceServers": [{
	"urls": ["stun:" + S]
	}]

azechi / 0_read_QR_Code_from_webcam.html

Last active April 4, 2019 03:41

Read QR Code from video with web browser using cozmo/jsQR

azechi / RandomBase32String.js

Last active July 3, 2023 17:14

Generate a random base32 string(length:6) using Web Crypto API

	const base = "abcdefghijklmnopqrstuvwxyz234567" //a-z, 2-7

	const array = new Int32Array(1)
	window.crypto.getRandomValues(array)
	const i = array[0]

	var result =
	base[i >>> 27 & 0x1f] +
	base[i >>> 22 & 0x1f] +
	base[i >>> 17 & 0x1f] +