Xavier NUNN eXenon

I like functionnal programming. And python. And cryptography. But mostly functionnal programming.

eXenon / config.h

Created August 31, 2024 16:42

	/* Copyright 2015-2021 Jack Humbert
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

eXenon / Server.py

Created February 17, 2021 07:04 — forked from HaiyangXu/Server.py

A simper python http server can handle mime type properly

	# -- coding: utf-8 --
	#test on python 3.4 ,python of lower version has different module organization.
	import http.server
	from http.server import HTTPServer, BaseHTTPRequestHandler
	import socketserver

	PORT = 8080

	Handler = http.server.SimpleHTTPRequestHandler

eXenon / gen-ssl.sh

Created November 24, 2020 15:58 — forked from thbkrkr/gen-ssl.sh

Generate Self-Signed SSL Certificate without prompt

	# Generate a passphrase
	openssl rand -base64 48 > passphrase.txt

	# Generate a Private Key
	openssl genrsa -aes128 -passout file:passphrase.txt -out server.key 2048

	# Generate a CSR (Certificate Signing Request)
	openssl req -new -passin file:passphrase.txt -key server.key -out server.csr \
	-subj "/C=FR/O=krkr/OU=Domain Control Validated/CN=*.krkr.io"

eXenon / damnatio_memoriae.sh

Created April 25, 2019 07:45

Replace Git Author

	#!/bin/sh

	git filter-branch --env-filter '
	OLD_EMAIL="your-old-email@example.com"
	CORRECT_NAME="Your Correct Name"
	CORRECT_EMAIL="your-correct-email@example.com"
	if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
	then
	export GIT_COMMITTER_NAME="$CORRECT_NAME"
	export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"

eXenon / udp_server.exs

Created February 24, 2019 15:43 — forked from joshnuss/udp_server.exs

Fault tolerant UDP Server in Elixir

	# to run:
	# > elixir --no-halt udp_server.exs
	# to test:
	# > echo "hello world" \| nc -u -w0 localhost:2052
	# > echo "quit" \| nc -u -w0 localhost:2052

	# Let's call our module "UDPServer"
	defmodule UDPServer do
	# Our module is going to use the DSL (Domain Specific Language) for Gen(eric) Servers
	use GenServer

eXenon / latency.txt

Created June 7, 2018 15:27 — forked from jboner/latency.txt

Latency Numbers Every Programmer Should Know

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

eXenon / editable-list.elm

Created May 8, 2018 20:16

A simple example file in Elm for a list with editable elements

	module Main exposing (..)

	import Html exposing (Html, button, div, text, ul, li, input)
	import Html.Events exposing (onClick, onInput)
	import Html.Attributes exposing (placeholder, value)
	import List exposing (map, length)


	main =
	Html.beginnerProgram { model = model, view = view, update = update }

eXenon / clip_magic.py

Last active March 4, 2021 07:16 — forked from asfaltboy/clip_magic.py

Python3 compatible copy-to-clipboard magic for IPython

	"""
	Add copy to clipboard from IPython!
	To install, just copy it to your profile/startup directory, typically:

	~/.ipython/profile_default/startup/

	Example usage:

	%clip hello world
	# will store "hello world"

eXenon / keybase.md

Last active October 4, 2018 11:50

I hereby claim:

To claim this, I am signing this object:

eXenon / mongo_objectid_to_uuid1.py

Created October 26, 2016 14:30

	def make_id(mongo_id: ObjectId, date=None, iteration=0):
	target_date = date or mongo_id.generation_time.replace(tzinfo=None)
	hasher = hashlib.sha1()
	hasher.update(mongo_id.binary)
	hasher.update(str(iteration).encode())
	hash = hasher.digest()

	time = int((target_date - datetime(1582, 10, 15)).total_seconds() * 10000000)
	time_low = time & 0xffffffff
	time_mid = (time >> 32) & 0xffff