def client_request(message, packet):
global serve_path
filename = message.decode("utf-8")
if filename in list_files():
try:
# If we have the requested file, we'll
# read it and pack it as a resource
RNS.log("Client requested \"" + filename + "\"")
file = open(os.path.join(serve_path, filename), "rb")
file_resource = RNS.Resource(file,
packet.link,
callback=resource_sending_concluded)
file_resource.filename = filename
except Exception as e:
# If somethign went wrong, we close
# the link
RNS.log("Error while reading file \"" + filename + "\"",
RNS.LOG_ERROR)
packet.link.teardown()
raise e
else:
# If we don't have it, we close the link
RNS.log("Client requested an unknown file")
packet.link.teardown()
def __as_resource(self):
if not self.packed:
self.pack()
if not self.__delivery_destination:
raise ValueError(
"Can't synthesize resource for LXMF message before delivery destination is known"
)
if not self.__delivery_destination.type == RNS.Destination.LINK:
raise TypeError(
"Tried to synthesize resource for LXMF message on a delivery destination that was not a link"
)
if not self.__delivery_destination.status == RNS.Link.ACTIVE:
raise ConnectionError(
"Tried to synthesize resource for LXMF message on a link that was not active"
)
self.progress = 0.0
return RNS.Resource(self.packed,
self.__delivery_destination,
callback=self.__resource_concluded,
progress_callback=self.__update_transfer_progress)
