def processPacket(self, packet):
"""
Processes a packet sent from the image repository
Args:
packet: the incoming packet to process
Returns:
Nothing
"""
data = self.__repositoryPacketHandler.readPacket(packet)
if (data["packet_type"] == IR_PACKET_T.RETR_REQUEST_RECVD
or data["packet_type"] == IR_PACKET_T.STOR_REQUEST_RECVD):
return
elif (data["packet_type"] == IR_PACKET_T.RETR_REQUEST_ERROR
or data["packet_type"] == IR_PACKET_T.RETR_ERROR
or data["packet_type"] == IR_PACKET_T.STOR_REQUEST_ERROR
or data["packet_type"] == IR_PACKET_T.STOR_ERROR):
self.__errorDescription = data["errorDescription"]
self.__image_not_found = True
elif (data["packet_type"] == IR_PACKET_T.RETR_START):
try:
ftpClient = FTPClient()
ftpClient.connect(self.__ftpServerIP, data['FTPServerPort'],
self.__ftpTimeout, data['username'],
data['password'])
ftpClient.retrieveFile(data['fileName'],
self.__transferDirectory,
data['serverDirectory'])
ftpClient.disconnect()
except Exception:
self.__errorDescription = ERROR_DESC_T.VMSRVR_FTP_RETR_TRANSFER_ERROR
elif (data["packet_type"] == IR_PACKET_T.STOR_START):
try:
ftpClient = FTPClient()
ftpClient.connect(self.__ftpServerIP, data['FTPServerPort'],
self.__ftpTimeout, data['username'],
data['password'])
ftpClient.storeFile(self.__sourceFilePath,
self.__transferDirectory,
data['serverDirectory'])
ftpClient.disconnect()
except Exception:
self.__errorDescription = ERROR_DESC_T.VMSRVR_FTP_RETR_TRANSFER_ERROR
elif (data["packet_type"] == IR_PACKET_T.ADDED_IMAGE_ID):
self.__imageID = data["addedImageID"]
self.__operation_completed = True
