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Julien Rialland jrialland

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@jrialland
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
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
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
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
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
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
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
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 ${QUICKJS_GIT_TAG}
@jrialland
jrialland / add_cert.sh
Created February 13, 2023 09:27
install a certificate bundle containing multiple certs as trusted certificates
#ADD data/ca-bundle.crt /usr/share/ca-certificates/mycompany/ca-bundle.crt
#RUN << EOF
cd /usr/share/ca-certificates/mycompany
i=1; while openssl x509 -out cert$i.pem; do
echo mycompany/cert$i.pem >> /etc/ca-certificates.conf
i=$((i+1))
done < ca-bundle.crt
update-ca-certificates
#EOF
@jrialland
jrialland / FindLEMON.cmake
Created August 30, 2022 12:39
CMake script for lemon parser generator
# - Find lemon executable and provides macros to generate custom build rules
# The module defines the following variables:
#
# LEMON_EXECUTABLE - path to the LEMON program
# LEMON_VERSION - version of LEMON
# LEMON_FOUND - true if the program was found
#
# If LEMON is found, the module defines the macro:
#
# LEMON_TARGET(<Name> <LEMONInp>)