def sendFile(fileName, fileSize, conn): Lib.writeTextTCP(str(fileSize), conn) file = open(fileName, 'rb') data = file.read(BUFSIZE) while data: conn.send(data) data = file.read(BUFSIZE)
def main(argv):
serverSocket = socket(AF_INET,SOCK_STREAM)
serverSocket.bind((HOST, PORT))
serverSocket.listen(1)
while 1:
print("The server is ready to accept...")
connectionSocket, addr = serverSocket.accept()
print("Socket accept", addr)
fileName = Lib.readTextTCP(connectionSocket) #Modtager sti og filnavn fra client
#fileName2 = Lib.extractFilename(fileName)
print("Message received from client:", fileName)
fileExists = Lib.check_File_Exists(fileName)
fileExists2 = str(fileExists)
#if fileExists != 0: #returns fileSize
#file = open(fileName2,'rb') #opens file without truncation
#file2 = file.read(all)
#fileSize = Lib.getFileSizeTCP(connectionSocket)
Lib.writeTextTCP(fileExists2, connectionSocket)
sendFile(fileName, fileExists, connectionSocket)
#else:
#Lib.writeTextTCP("File not found", connectionSocket) #Sender error message til client
connectionSocket.close()
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 main(argv):
#creating an INET an streaming socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
#bind to the HOST id and port 9000
sock.bind((HOST, PORT))
#The server can queue up to 5 connect requests
sock.listen(5)
print("Server socket opened")
while True:
#accepts connection from client
clisock, addr = sock.accept()
print("connection from {} achieved".format(addr))
#reads the message from the client
msg = Lib.readTextTCP(clisock)
print("received following message: {} ".format(msg))
#if the message is close it will close the connections and exit
if msg == "close":
sock.close()
print("Server socket closed")
clisock.close()
sys.exit()
#checks if the file exists and returns the size of the file, if it doesn't exist it returns 0
size = Lib.check_File_Exists(msg)
if size > 0:
print("The size of the file is: {} bit".format(size))
#converts the size of the file to a string and sends it to the client
returnmsg = str(size)
Lib.writeTextTCP(returnmsg, clisock)
#opens the requested file
file = open(msg, 'rb')
#reads BUFSIZE bits from the file
filedata = file.read(BUFSIZE)
#while there is data to be read it will send the data and read new data
while filedata:
clisock.send(filedata)
filedata = file.read(BUFSIZE)
else:
print("The file doesn't exist")
#converts the size of the file to a string and sends it to the client
returnmsg = str(size)
Lib.writeTextTCP(returnmsg, clisock)
clisock.close()
def main(ip, file):
print('ip: ', ip)
print('file: ', file)
clientSocket = socket(AF_INET, SOCK_STREAM)
clientSocket.connect((ip, SERVERPORT))
Lib.writeTextTCP('Client initiated TCP connection', clientSocket)
printServerResponse(clientSocket)
sizeOfFile = int(requestFile(file, clientSocket))
receiveFile(file, clientSocket, sizeOfFile)
clientSocket.close()
def main(argv):
fileName = sys.argv[1] #input from terminal when compiling
clientSock = socket(AF_INET, SOCK_STREAM) #create tcp socket
clientSock.connect((HOST, PORT)) #connect socket to the server address
print("Connected to server")
Lib.writeTextTCP(fileName, clientSock) #writes filename to server
receiveFile(fileName, clientSock) #calls recieveFile()
def receiveFile(fileName, conn):
Lib.writeTextTCP(fileName, conn)
filelength = int(float(Lib.readTextTCP(conn)))
print "fil length er {}".format(filelength)
chunks = int((filelength // BUFSIZE) + 1)
f = open("billede.jpg", "wb")
for i in range(0, chunks):
content = conn.recv(BUFSIZE)
f.write(content)
print 'Received a package'
print 'Done downloading'
f.close
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):
serverSock = socket(AF_INET, SOCK_STREAM) #create TCP socket
serverSock.bind((HOST, PORT)) #Bind socket to IP og port(address)
serverSock.listen(1) #waiting for client to connect.
print 'The server is ready to receive'
while True:
conn, addr = serverSock.accept() #completes connection with client
print 'Connected to client - Port - ', PORT
txtClient = Lib.readTextTCP(
conn) #Reads file and directory from client
fileName = Lib.extractFilename(txtClient)
fileSize = str(Lib.check_File_Exists(fileName))
Lib.writeTextTCP(fileSize, conn) #send filesize to client.
sendFile(fileName, fileSize, conn) #calls sendfile()
def sendFile(fileName, fileSize, conn):
Lib.writeTextTCP(str(fileSize), conn)
if fileSize != 0:
fileHandle = open(fileName, "rb")
toSendBytes = fileSize
print "Sending file: " + fileName
print "With size: " + str(fileSize)
while toSendBytes > 0:
toSend = fileHandle.read(BUFSIZE)
toSendBytes -= len(toSend)
conn.send(toSend)
print "Finished sending..."
fileHandle.close()
def getFile(fileName, conn):
# TO DO Your Code
print("Inside receiveFile")
Lib.writeTextTCP(fileName, conn)
print("After conn.sendto")
#sendto(data: bytes, address: _Addresss)
#bytesAddresPair = conn.recvfrom(2048)
#number of bytes to be read from the TCP socket
sizeOfFile = int(Lib.readTextTCP(conn))
print(sizeOfFile)
print("after sizeOfFile")
if sizeOfFile == 0 :
print("Der findes ikke nogen fil")
return
fileNameExtracted = Lib.extractFilename(fileName)
fd = open(fileNameExtracted, 'wb')
# while sizeOfFile >= BUFSIZE:
# print("Inside receiveFile Inside while loop")
# var = Lib.readImageTCP(conn)
# fd.write(var)
#
# sizeOfFile -= BUFSIZE
# print("After fileLEngth -=")
# print("fd.close")
# var = Lib.readImageTCP(conn)
i = 1
#databuf = b""
while sizeOfFile > 0:
print("receiving datapacket: ", i)
if sizeOfFile >= 1000:
data = conn.recv(BUFSIZE)
#databuf += data
sizeOfFile -= BUFSIZE
i += 1
print("data received: ", data)
elif sizeOfFile < BUFSIZE:
data = conn.recv(sizeOfFile)
print("data received: ", data)
sizeOfFile -= sizeOfFile
fd.write(data)
fd.close()
def main(argv):
# TO DO Your Code
# Create a TCP/IP socket
serverSocket = socket(AF_INET, SOCK_STREAM)
# Bind the socket to the port
server_address = (HOST, PORT)
serverSocket.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
serverSocket.bind(server_address)
# Listen for incoming connections
serverSocket.listen(1)
print("Server are ready to recieve")
# loop waiting for connections (terminate with Ctrl-C)
try:
while True:
connectionSocket, address = serverSocket.accept()
print "Connected from", address
sentence = Lib.readTextTCP(connectionSocket)
print "Client beder om: ", sentence
file_name = Lib.extractFilename(sentence)
print "Filnavn: ", file_name
file_size = Lib.check_File_Exists(sentence)
if file_size != 0:
print "Filen findes!"
print "Filen fylder: ", file_size
Lib.writeTextTCP(str(file_size), connectionSocket)
sendFile(sentence, file_size, connectionSocket)
print "Filen er sendt!"
else:
print "Kuk kuk - tom fil eller er den bare tom?"
Lib.writeTextTCP("Ingen fil..", connectionSocket)
connectionSocket.close()
print "Disconnected from", address
finally:
serverSocket.close()
def main(argv):
# TO DO Your Code
if len(argv) > 0: #give arguments in the terminal names
TARGET = argv[0]
FILE = argv[1]
else:
sys.exit()
client = socket(AF_INET, SOCK_STREAM) #making the socket
client.connect((TARGET, PORT))
Lib.writeTextTCP(FILE, client) #asking for file
sizer = Lib.readTextTCP(client) #receives the filesize from server
receiveFile(FILE, client, sizer) #receive the file
client.close()
sys.exit()
def main(argv):
serverSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
serverSocket.bind(('', PORT))
serverSocket.listen(1)
print('The server is running and ready to receive')
while True:
connectionSocket, addr = serverSocket.accept()
printConnectionEstablished(connectionSocket)
print('Waiting to recieve file name')
fileName = ''
fileSize = ''
fileName = getTargetFile(connectionSocket)
fileSize = getTargetFileSize(fileName)
Lib.writeTextTCP(str(fileSize), connectionSocket)
sendFile(fileName, fileSize, connectionSocket)
time.sleep(1)
connectionSocket.close()
def sendFile1(file, fileSize, conn):
# TO DO Your Code
Lib.writeTextTCP(fileSize, conn)
if fileSize > BUFSIZE:
sizebuf = fileSize
i = 1000
j = i-1000
while sizebuf > 0:
if sizebuf > 1000:
conn.sendFile(file[j:i],conn)
sizebuf -= i
i += 1000
elif sizebuf < 1000:
conn.sendFile(file[sizebuf],conn)
conn.close
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 main(argv):
#Connect to socket
s = socket(AF_INET,SOCK_STREAM)
print("The client is connecting...")
s.connect((serverName, PORT))
print ("Client Connected")
filename = input("Filename? -->") #Enter filename
print(filename)
Lib.writeTextTCP(filename,s)
#filesize = Lib.getFileSizeTCP(filename) #Get filesize
#print(filesize)
if filename == 'q':
s.close()
else:
#getFile(filename, filesize, s)
getFile(filename,s)
s.close()
def sendFile(fileName, fileSize, conn): #fileName = Lib.extractFilename(fileName) i = 0 text = "." #Sending size of requested file Lib.writeTextTCP(str(fileSize), conn) with open(fileName, "rb") as file_obj: while 1: #text not == "": text = file_obj.read(BUFSIZE) i = i + 1 if text == "": conn.send(text) break conn.send(text) print 'Packets sent: ', i print 'File sent: ', fileName
def main(argv):
try:
#Initiate server
serversocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) #INET equals streaming socket equals TCP
#Prevent socket from blocking
#serversocket.setblocking(0)
serversocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
#Bind socket to PORT and localhost
serversocket.bind((HOST,PORT))
serversocket.listen(1) #We want to queue up to just one client
print 'Socket connection on: ', serversocket.getsockname()
except socket.error as msg:
print 'Error connecting with serversocket: %s\n Terminating program.' %msg
serversocket.close()
sys.exit()
while(1):
#Wait for connections
(clientsocket, address) = serversocket.accept()
print 'Incomming connection from', address
filename = Lib.readTextTCP(clientsocket) #Connect with client
print '1 ', filename
filesize = Lib.check_File_Exists(filename) #Returns size
print '2 filesize ', filesize
if filesize != 0:
sendFile(filename, filesize, clientsocket)
else:
Lib.writeTextTCP("0", clientsocket)
Lib.writeTextTCP("File " + filename + "doesnt exist.", clientsocket)
print '3 Closing connection ', address
clientsocket.close()
def main(argv):
serverSocket = socket(AF_INET, SOCK_STREAM)
serverSocket.bind((LOCALIP, PORT))
serverSocket.listen(1)
print("The server is ready to recieve\n")
while True:
connectionSocket, addr = serverSocket.accept()
print("client connected\n")
msg = Lib.readTextTCP(connectionSocket)
while msg != "exit":
print("Command received: %s\n" % msg)
fileSize = Lib.check_File_Exists(msg)
if fileSize > 0:
sendFile(msg, fileSize, connectionSocket)
else:
Lib.writeTextTCP(str(fileSize), connectionSocket)
msg = Lib.readTextTCP(connectionSocket)
connectionSocket.close()
print("Connection closed")
def main(argv): host = sys.argv[1] file = sys.argv[2] # Create a TCP/IP socket clientSocket = socket(AF_INET, SOCK_STREAM) server_address = (host, PORT) clientSocket.connect(server_address) fileName = Lib.extractFilename(file) Lib.writeTextTCP(file,clientSocket) fileSize = Lib.readTextTCP(clientSocket) fileSize = int(fileSize) print fileSize msg = Lib.readTextTCP(clientSocket) if msg == "Sender Fil...": receiveFile(fileName, fileSize, clientSocket) else: print "Fejl 40 -", msg clientSocket.close()
def sendFile(fileName, fileSize, conn):
# TO DO Your Code
Lib.writeTextTCP("Sender Fil...", conn)
filepoint = 1
file = open(fileName, 'rb')
sizeLeft = fileSize
while (sizeLeft > 0):
if sizeLeft < BUFSIZE:
Lib.writeTextTCP(str(sizeLeft), conn)
filepoint = file.read(sizeLeft)
else:
Lib.writeTextTCP(str(BUFSIZE), conn)
filepoint = file.read(BUFSIZE)
print "Sender...."
conn.send(filepoint)
sizeLeft = sizeLeft - BUFSIZE
Lib.writeTextTCP('0', conn)
file.close()
def sendFile(fileName, fileSize, conn):
Lib.writeTextTCP(fileSize, conn)
with open(fileName, "rb") as f:
conn.send(f.read())
conn.close()
f.close()
def printConnectionEstablished(conn):
receivedMessage = Lib.readTextTCP(conn)
print(receivedMessage)
Lib.writeTextTCP('Server is ready to recieve file name', conn)
