def processConn(address, data):
protocol = Protocol()
start = time.time()
sock = protocol.createSocket()
try:
try:
f = open(data, 'r')
print(data)
data = f.read()
f.close()
except:
print("No such file found.")
data = "NSF"
ack = protocol.sendPacket(sock, data, address)
print("Client informed. Removing Client.")
sock.close()
return
#send data to client in packets of size MTU
packets, retransmissions = protocol.sendPackets(sock, data, address)
sock.close()
print("\nTransfer done.")
print(packets, " packets transmitted.")
print(retransmissions, " retransmissions.")
print("Time Elapsed: ", str(time.time() - start))
except Exception as e:
print(e)
print("Server Error")
parser = argparse.ArgumentParser(
description='Send and receive files on Reliable UDP')
parser.add_argument('-ip', help='Server IP')
parser.add_argument('-p',
metavar='PORT',
type=int,
default=1060,
help='UDP port')
args = parser.parse_args()
server_addr = (args.ip, args.p)
filename = input("File Requested: ")
newfile = filename.split(".")[0] + "_client_copy." + filename.split(".")[1]
f = open(newfile, 'w')
sock = protocol.createSocket()
sock.settimeout(10)
try:
sock.sendto(filename.encode(), server_addr)
protocol.seqFlag = 0
while True:
#get packet
seq, msglen, msg, ackstatus = protocol.recvPacket(sock)
print(msg)
if not ackstatus:
continue
if msg == "NSF":
print("No such file found at server.")
os.remove(newfile)
