async def head(self, ds_id: str, path: str = ''):
key, local_path = self._get_key_and_local_path(ds_id, path)
if _LOG_S3BUCKET_HANDLER:
LOG.info(f'HEAD: key={key!r}, local_path={local_path!r}')
if local_path is None or not local_path.exists():
await self._key_not_found(key)
return
self.set_header('ETag', str_to_etag(str(local_path)))
self.set_header('Last-Modified', mtime_to_str(local_path.stat().st_mtime))
if local_path.is_file():
self.set_header('Content-Length', local_path.stat().st_size)
else:
self.set_header('Content-Length', 0)
await self.finish()
async def get(self, ds_id: str, path: str = ''):
key, local_path = self._get_key_and_local_path(ds_id, path)
if _LOG_S3BUCKET_HANDLER:
LOG.info(f'GET: key={key!r}, local_path={local_path!r}')
if local_path is None or not local_path.exists():
await self._key_not_found(key)
return
self.set_header('ETag', str_to_etag(str(local_path)))
self.set_header('Last-Modified', mtime_to_str(local_path.stat().st_mtime))
self.set_header('Content-Type', 'binary/octet-stream')
if local_path.is_file():
self.set_header('Content-Length', local_path.stat().st_size)
chunk_size = 1024 * 1024
with open(str(local_path), 'rb') as fp:
while True:
chunk = fp.read(chunk_size)
if len(chunk) == 0:
break
self.write(chunk)
await self.flush()
else:
self.set_header('Content-Length', 0)
await self.finish()
