Running the Server

Put an HTML file (e.g., HelloWorld.html) in the same directory that the server is in. Run the server program. Determine the IP address of the host that is running the server (e.g., 128.238.251.26). From another host, open a browser and provide the corresponding URL. For example:

http://128.238.251.26:6789/HelloWorld.html

HelloWorld.html is the name of the file you placed in the server directory. Note also the use of the port number after the colon. You need to replace this port number with whatever port you have used in the server code. In the above example, we have used the port number 6789. The browser should then display the contents of HelloWorld.html. If you omit ":6789", the browser will assume port 80 and you will get the web page from the server only if your server is listening at port 80.

Then try to get a file that is not present at the server. You should get a 404 Not Found message.

What to Hand in

You will hand in the complete server code along with the screen shots of your client browser, verifying that you actually receive the contents of the HTML file from the server.

Skeleton Python Code for the Web Server

#import socket module

from socket import *

import sys # In order to terminate the program

serverSocket = socket(AF_INET, SOCK_STREAM)

#Prepare a sever socket

#Fill in start

#Fill in end

while True:

#Establish the connection

print('Ready to serve...')

connectionSocket, addr = #Fill in start #Fill in end

try:

message = #Fill in start #Fill in end

filename = message.split()[1]

f = open(filename[1:])

outputdata = #Fill in start #Fill in end

#Send one HTTP header line into socket

#Fill in start

#Fill in end

#Send the content of the requested file to the client

for i in range(0, len(outputdata)):

connectionSocket.send(outputdata[i].encode())

connectionSocket.send(" ".encode())

connectionSocket.close()

except IOError:

#Send response message for file not found

#Fill in start

#Fill in end

#Close client socket

#Fill in start

#Fill in end

serverSocket.close()

sys.exit()#Terminate the program after sending the corresponding data

((python))