Julien Rialland jrialland

jrialland / tail_app.py

Last active October 27, 2025 13:49

a fastapi example that tails -f a file or a TextIO in a web app

	from fastapi import FastAPI, Path
	from fastapi.routing import APIRouter
	from fastapi.responses import StreamingResponse
	from starlette.responses import RedirectResponse, HTMLResponse
	import asyncio
	import json
	import logging
	import time
	from typing import TextIO
	from pathlib import Path

jrialland / frontendapp_proxy_middleware.py

Last active October 1, 2025 12:48

An ASGI middleware class that runs a thirdparty npm process and proxies requests that fall in 404 to it

	"""
	ASGI Middleware for serving the frontend application.
	This modules is used in development environment only.
	When in production, the frontend application may be served by a dedicated web server.

	```
	if not_in_production_environment:
	app = FrontendAppMiddleware(app, app_dir='<path to npm project>')
	```

jrialland / sha256.wgsl

Created March 16, 2025 14:15

sha256 algo in WGSL

	struct SHA256_CTX {
	data : array<u32, 64>,
	datalen : u32,
	bitlen : array<u32, 2>,
	state : array<u32, 8>,
	info : u32,
	};

	fn sha256_init_ctx(ctx : ptr<function, SHA256_CTX>)
	{

jrialland / autoimport.py

Created March 13, 2025 15:39

This code snippet defines a function import_submodules that imports all submodules of a given module recursively, including subpackages.

	from types import ModuleType


	def import_submodules(module: ModuleType) -> None:
	"""
	Import all submodules of a module, recursively, including subpackages.
	:param module: module (package) to import submodules of
	"""
	import importlib
	import pkgutil

jrialland / resp3.py

Created February 12, 2025 16:33

a quick and dirty resp3 serializer / deserializer

	"""
	This is a serializer / deserializer for the RESP3 protocol.
	protocol spec at https://github.com/antirez/RESP3/blob/master/spec.md
	"""

	from typing import Generator, BinaryIO, Any

	class error_str(str):
	pass

jrialland / imgterm.py

Created February 3, 2025 13:44

displays an image in the terminal

	"""
	try to display an image in terminal using vt100 256 color codes
	"""
	import os, sys
	from PIL import Image

	#~dep:colored
	from colored import Back, Style
	from typing import TextIO

jrialland / proxy.py

Created October 29, 2024 13:44

proxies http and websocket traffic to an upstream server

	import re
	import requests
	import logging
	from urllib.parse import urljoin
	import asyncio
	import websockets
	from http import HTTPStatus

	from asgiref.typing import (
	ASGI3Application,

jrialland / facemesh.py

Created October 30, 2023 13:40

python opencv example

	from cvzone.FaceMeshModule import FaceMeshDetector
	import cv2

	cap = cv2.VideoCapture(0)
	detector = FaceMeshDetector(maxFaces=2)
	while True:
	success, img = cap.read()
	img, faces = detector.findFaceMesh(img)
	if faces:
	print(faces[0])

jrialland / CMakeLists.txt.snippet

Last active April 14, 2023 10:09

Cmake snippet that compiles quickjs as static library

	################################################################################
	## compile quickjs as a static library
	set(QUICKJS_GIT_TAG master)

	include(FetchContent)

	FetchContent_Declare(
	quickjs
	GIT_REPOSITORY https://github.com/bellard/quickjs.git
	GIT_TAG ${QUICKJS_GIT_TAG}

jrialland / add_cert.sh

Created February 13, 2023 09:27

install a certificate bundle containing multiple certs as trusted certificates

	#ADD data/ca-bundle.crt /usr/share/ca-certificates/mycompany/ca-bundle.crt
	#RUN << EOF
	cd /usr/share/ca-certificates/mycompany
	i=1; while openssl x509 -out cert$i.pem; do
	echo mycompany/cert$i.pem >> /etc/ca-certificates.conf
	i=$((i+1))
	done < ca-bundle.crt
	update-ca-certificates
	#EOF