def main(argv):
if len(argv) > 2:
SERVER = sys.argv[1]
else:
print("Benyt formatet 'python file_client.py <IP>'\n")
sys.exit()
sock = socket(AF_INET, SOCK_STREAM)
sock.connect((SERVER, PORT))
print("Forbundet til server\n")
cmd = input("Indtast filnavn. Ved afslutning skriv 'exit'\n")
while cmd != "exit":
Lib.writeTextTCP(cmd, sock)
fileSize = Lib.getFileSizeTCP(sock)
print(fileSize)
if fileSize > 0:
receiveFile(cmd, sock, fileSize)
else:
print("Fil ikke fundet\n")
cmd = input("Indtast filnavn. Ved afslutning skriv 'exit'\n")
Lib.writeTextTCP(cmd, sock)
sock.close()
sys.exit()
def requestFile(file, conn):
print('Requesting file')
Lib.writeTextTCP(file, conn)
fileSize = Lib.getFileSizeTCP(conn)
print('Size is: ', fileSize)
print('Requesting,', file)
Lib.writeTextTCP('Ready to receive', conn)
return fileSize
def receiveFile(fileName, conn):
Lib.writeTextTCP(fileName, conn)
fileSize = Lib.getFileSizeTCP(conn)
if fileSize != 0:
fileHandle = open(fileName, "wb")
toReceive = fileSize
while toReceive > 0:
received = conn.recv(min(toReceive, BUFSIZE))
fileHandle.write(received)
toReceive -= len(received)
print "Finished getting file"
fileHandle.close()
else:
print "File '" + fileName + "' did not exist on the server"
def main(argv):
clisock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
#checks if input is correct
if len(argv) == 2:
serv = argv[0]
msg = argv[1]
else:
print("Formatet skal vaere <server IP> <sti/Filnavn>")
sys.exit()
#client connects to server
clisock.connect((serv, PORT))
print("Connection til server etableret")
#writes the filename t the server
Lib.writeTextTCP(msg, clisock)
#gets the filsize
size = Lib.getFileSizeTCP(clisock)
print("filstorelsen er: {}".format(size))
dataread = 0
#checks if the file exsists and if it does it starts receiving the file
if size > 0:
filename = Lib.extractFilename(msg)
print("Filnavnet er: {}".format(msg))
file = open(filename, 'wb')
while dataread < size:
filedata = clisock.recv(BUFSIZE)
file.write(filedata)
dataread = dataread + len(filedata)
print("filen er faerdigoverfort")
else:
print("File not found on server")
sys.exit()
clisock.close()
def receiveFile(fileName, conn):
fileSize = Lib.getFileSizeTCP(conn)
if fileSize == 0: #checks if file exist
print("Filesize is 0. File doesn't exist")
conn.close() #close connection to the server
else:
print 'Filesize is: ', fileSize
print("Starting download")
f = open("fileName", "wb") #open file or create. write binary.
receivedData = conn.recv(
BUFSIZE) #Reads the first 1000 bytes sent from server
f.write(receivedData) #write the first chunk of the file
receivedTotal = len(receivedData) #sets the total number of bytes recieved
while receivedTotal < fileSize: #runs until total number of recieved bytes is larger or equal to filesize
receivedData = conn.recv(
BUFSIZE) #reads chunks of 1000 bytes sent from server
f.write(receivedData) #writes the received data to file
receivedTotal += len(
receivedData) #keeps count on the total number og bytes received.
print("Dowload completed. Client will close")
conn.close() #close connection to server.
