ovdashboard/api/ovkiosk/dav_file.py

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2022-08-29 11:27:18 +00:00
import logging
import threading
from io import BytesIO
from typing import Any
from webdav3.client import Client, Resource
_logger = logging.getLogger(__name__)
class DavFile:
def __init__(self, client: Client, path: Any) -> None:
self.__resource: Resource = client.resource(path)
self.__buffer = BytesIO()
self.__lock = threading.Lock()
def update(self) -> None:
_logger.debug(f"updating {self.__resource}")
with self.__lock:
self.__buffer.seek(0)
self.__buffer.truncate(0)
self.__resource.write_to(self.__buffer)
def refresh(self, refresh_interval: int = 5) -> threading.Event:
stop_handle = threading.Event()
def refresh_loop() -> None:
while not stop_handle.wait(refresh_interval):
self.update()
thread = threading.Thread(target=refresh_loop)
thread.daemon = True
thread.start()
return stop_handle
@property
def bytes(self) -> bytes:
with self.__lock:
self.__buffer.seek(0)
return self.__buffer.read()
def __str__(self) -> str:
return self.bytes.decode(encoding="utf-8")