def run(self):
fs = framedSocket(self.conn)
contents = (fs.receiveMessage())
filename = contents
canTransfer = self.checkTransfer(filename)
if (canTransfer):
if (os.path.isFile(filename)):
fs.sendMessage(b"NO")
conn.shutdown(socket.SHUT_WR)
else:
fs.sendMessage(b"OK")
else:
os.write(2, ("File in Transfer").encode())
conn.shutdown(socket.SHUT_WR)
fd = os.open(filename, os.O_CREAT | os.O_WRONLY)
os.write(fd, fs.receiveMessage().encode())
os.close(fd)
self.endTransfer(filename)
self.conn.shutdown(socket.SHUT_WR)
s = None
continue
break
if s is None: # failed
print("could not open socket")
sys.exit(1)
delay = float(paramMap['delay'])
if delay != 0:
print(f"sleeping for {delays}s")
time.sleep(delay)
print("done sleeping")
fs = framedSocket(s)
input = my_getLine()
command,localfile,remotefile = parseTCPInput(input)
fs.sendMessage(remotefile.encode()) # send filename
reply = fs.receiveMessage() # get server's response
if reply == "NO": # File can't be transferred
os.write(2,("Failed").encode())
sys.exit(1)
else: # "OK"
fd = os.open(localfile, os.O_RDONLY)
buffer = ""
paramMap = paramMap = params.parseParams(switchesVarDefaults)
listenPort = paramMap['listenPort']
listenAddr = '' # all available interfaces
if paramMap['usage']:
params.usage()
s = socket.socket(socket.AF_INET,
socket.SOCK_STREAM) # create new socket, stream = 2 way
s.bind((listenAddr, listenPort)) # attach socket to fd, local host 50001
s.listen(1) # listen for new connections
while True: # For every connection
conn, addr = s.accept()
fs = framedSocket(conn)
if os.fork() == 0: # Fork off a child to become server
contents = (fs.receiveMessage()) # get command from client
filename = contents
if os.path.isfile(
filename): # Check if there is already a file named filename
fs.sendMessage(b"NO")
conn.shutdown(socket.SHUT_WR)
else:
fs.sendMessage(b"OK")
fd = os.open(filename, os.O_CREAT
| os.O_WRONLY) # open the file, so it can be written to