def run(self):
print("Working in Thread-%d" % threadNum)
framed_sock = framedSocket.framedSocket(self.connectedSock)
request = framed_sock.recv_msg()
os.write(1, "Recieving: {}\n".format(request).encode())
if request == "send":
fileName = framed_sock.recv_msg()
os.write(1, "Receiving {}\n".format(fileName).encode())
path = "./server/" + fileName
lock.acquire()
if os.path.isfile(path):
sent = framed_sock.send_msg("This file aready exists.")
os.write(1, "Sending {}\n".format(sent).encode())
else:
os.write(1, ("Sending: " + framed_sock.send_msg("accept") +
"\n").encode())
fd = os.open("./server/" + fileName, os.O_CREAT | os.O_WRONLY)
os.write(fd, (framed_sock.recv_msg()).encode())
os.close(fd)
os.write(1, "File {} created.\n".format(fileName).encode())
lock.release()
else:
os.write(1, "Inconplete request".encode())
self.connectedSock.shutdown(socket.SHUT_WR)
def client():
switchesVarDefaults = (
(('-s', '--server'), 'server', "127.0.0.1:50001"),
(('-d', '--debug'), "debug", False), # boolean (set if present)
(('-?', '--usage'), "usage", False), # boolean (set if present)
)
paramMap = params.parseParams(switchesVarDefaults)
server, usage, debug = paramMap["server"], paramMap["usage"], paramMap["debug"]
if usage:
params.usage()
try:
serverHost, serverPort = re.split(":", server)
serverPort = int(serverPort)
except:
print("can't parse server:port from '%s'" % server)
sys.exit(1)
addr_port = (serverHost, serverPort)
# create socket object
listen_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
listen_socket.connect(addr_port)
# create encapsulated socket
encap_socket = framedSocket((listen_socket, addr_port))
while True:
filename = input("Enter the file to be sent: ")
filename.strip()
if filename == "exit":
sys.exit(0)
else:
if not filename:
continue
elif os.path.exists(PATH_FILES + filename):
# open file and read
file = open(PATH_FILES + filename, "rb")
file_content = file.read()
# verify file is not empty before sending
if len(file_content) < 1:
print(EMPTY_MSG % filename)
continue
# send file contents to server
encap_socket.send(filename, file_content, debug)
# check if server received file
status = encap_socket.get_status()
status = int(status.decode())
# successful transfer
if status:
print(CONFIRM_MSG % filename)
#sys.exit(0)
# failed transfer
else:
print(REJECT_MSG % filename)
sys.exit(1)
# file not found
else:
print("ERROR: file %s not found. Try again" % filename)
def __init__(self, sockAddr):
Thread.__init__(self)
self.sock, self.addr = sockAddr
self.fsock = framedSocket(sockAddr)
continue
break
if s is None:
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")
#above code provided by Dr.Freudenthal#
fs = framedSocket() #create instance of framedSocket class
input = my_getLine() #input from the user
command,localfile,host,remotefile = parseTCPInput(input) #parse input and get filename
fs.sendMessage(remotefile.encode())
reply = fs.receiveMessage()
if reply =="NO":
OS.WRITE(2,("Failed").encode())
sys.exit(1)
else:
fd = os.open(localfile, os.O_RDONLY)
buff = ""
continue
try:
print(" attempting to connect to %s" % repr(sa))
sock.connect(sa)
except sock.error as msg:
print(" error: %s" % msg)
sock.close()
sock = None
continue
break
if sock is None:
print('could not open socket')
sys.exit(1)
framed_sock = framedSocket.framedSocket(sock)
sent = framed_sock.send_msg('send')
os.write(1, ("Sending " + sent + '\n').encode())
sent = framed_sock.send_msg(remoteFile)
os.write(1, ("Sending " + sent + '\n').encode())
response = framed_sock.recv_msg()
os.write(1, ("Receiving " + response + '\n').encode())
if response == "accept":
print("Will now send file named " + localFile + '\n')
data = my_fileReader(localFile)
framed_sock.send_msg(data)
os.write(1, "Sending {}\n".format(localFile).encode())