def __handle_client_connection(self, client_sock):
"""
Read message from a specific client socket and closes the socket
If a problem arises in the communication with the client, the
client socket will also be closed
"""
socket_transferer = BlockingSocketTransferer(client_sock)
try:
msg = socket_transferer.receive_plain_text()
except Exception:
ClientListener.logger.exception("Error while reading socket {}".format(client_sock))
socket_transferer.abort()
return
try:
parsed_msg = json.loads(msg)
except json.decoder.JSONDecodeError as e:
ClientListener.logger.exception("Error parsing json")
socket_transferer.send_plain_text(json.dumps({"message": "ERROR", "data": str(e)}))
socket_transferer.close()
return
self.backup_scheduler_write.send((parsed_msg['command'], parsed_msg['args']))
try:
message, data = self.backup_scheduler_read.recv()
except EOFError as e:
ClientListener.logger.exception("Backup scheduler death")
socket_transferer.abort()
raise e
try:
socket_transferer.send_plain_text(json.dumps({"message": message, "data": data}))
except Exception:
ClientListener.logger.exception("Error writing through socket")
socket_transferer.abort()
return
socket_transferer.close()
def __handle_client_connection(client_sock, backup_no: int):
"""
Read message from a specific client socket and closes the socket
If a problem arises in the communication with the client, the
client socket will also be closed
"""
socket_transferer = BlockingSocketTransferer(client_sock)
try:
msg = socket_transferer.receive_plain_text()
msg = json.loads(msg)
path, previous_checksum = msg['path'], msg['checksum']
SidecarProcess.logger.debug("Previous checksum for path %s is '%s'" % (path, previous_checksum))
except (OSError, TimeoutError) as e:
SidecarProcess.logger.exception("Error while reading socket %s: %s" % (client_sock, e))
socket_transferer.abort()
return
try:
backup_file = BackupFile.create_from_path(path, TMP_BACKUP_PATH % backup_no)
except Exception:
SidecarProcess.logger.exception("Error while making backup file")
socket_transferer.abort()
return
file_checksum = backup_file.get_hash()
if file_checksum == previous_checksum:
SidecarProcess.logger.info("Previous checksum equals to actual data, skipping backup")
socket_transferer.send_plain_text("SAME")
socket_transferer.abort()
return
else:
socket_transferer.send_plain_text("DIFF")
try:
socket_transferer.send_file(TMP_BACKUP_PATH % backup_no)
SidecarProcess.logger.debug("Backup file sent")
socket_transferer.send_plain_text(file_checksum)
except Exception as e:
SidecarProcess.logger.exception("Error while writing socket %s: %s" % (client_sock, e))
socket_transferer.abort()
return
finally:
socket_transferer.close()
return