flask-server/kinolist/posters.py

from flask import (current_app, send_from_directory)
from hashlib import sha1
from pathlib import Path
import os

def save(name, content):
    h = sha1(content).hexdigest()
    filename = h + Path(name).suffix
    file_path = os.path.join(current_app.config['UPLOAD_FOLDER'], filename)
    
    with open(file_path, "wb") as file:
        file.write(content)
    
    return filename

def get(name):
    return send_from_directory(current_app.config['UPLOAD_FOLDER'], name)