from flask import request, current_app import werkzeug.exceptions import hashlib def write_file_to_fd_while_calculating_md5(fd: int) -> str: chunksize = current_app.config['RECIEVE_CHUNKSIZE'] m = hashlib.md5() total_recieved = 0 # Begin recieving the file with open(fd, "bw") as f: while True: # This is where uploading happens chunk = request.stream.read(chunksize) if len(chunk) == 0: break total_recieved += len(chunk) if total_recieved > current_app.config['MAX_RECIEVE_SIZE']: raise werkzeug.exceptions.RequestEntityTooLarge() m.update(chunk) f.write(chunk) return m.hexdigest() def create_md5_sum_for_file(fname): m = hashlib.md5() with open(fname, "rb") as f: for chunk in iter(lambda: f.read(4096), b""): m.update(chunk) return m.hexdigest()