Simple Python TCP Server Not Sending the Entire Web Page
Question
I'm a beginner compsci student and I'm trying to code a simple server in python that takes a .HTML page stored in the same directory and sends it to a client on the same network using a TCP connection.
This is my code:
from socket import *
serverPort = 8000
serverSocket = socket(AF_INET, SOCK_STREAM)
# Prepare a sever socket
serverSocket.bind(('', serverPort)) # binds socket to port 8000
serverSocket.listen(1) # waiting for client to initiate connection
while True:
# Establish the connection
print('Ready to serve...')
connectionSocket, addr = serverSocket.accept()
try:
message = connectionSocket.recv(1024)
filename = message.split()[1]
f = open(filename[1:].decode())
outputdata = f.read()
# Send one HTTP header line into socket
http_response = 'HTTP/1.1 200 OK\n'
connectionSocket.send(http_response.encode())
# Send the content of the requested file to the client
for i in range(0, len(outputdata)):
connectionSocket.send(outputdata[i].encode())
connectionSocket.send("\r\n".encode())
connectionSocket.close()
except IOError:
connectionSocket.send("\r\n".encode())
# DO LATER
serverSocket.close()
sys.exit()
And this is my simple html page:
<!DOCTYPE html>
<html>
<body>
<h1>My First Web Page</h1>
<p>You have successfully accessed the Web Server</p>
</body>
</html>
So far whenever I run my server and direct my browser to it, I only get the following served to me:
<p>You have successfully accessed the Web Server</p>
Along with the body and html tags after this. Checking the page source there's no header.
I ran Wireshark while trying to access my server and indeed it seems like I'm only sending through "You have successfully accessed the Web server" and onwards. This is despite the fact a print function shows I am definitely sending all the data in the file through the TCP connection.
Does anyone know what the issue is?
2 answers
solution1
1 ACCPTED 2020-09-08 22:54:21
After sending the protocol answer and headers, the actual response comes after two \\r\\n sequences.
Use this fixed code:
from socket import *
serverPort = 8000
serverSocket = socket(AF_INET, SOCK_STREAM)
# Prepare a sever socket
serverSocket.bind(('', serverPort)) # binds socket to port 8000
serverSocket.listen(1) # waiting for client to initiate connection
while True:
# Establish the connection
print('Ready to serve...')
connectionSocket, addr = serverSocket.accept()
try:
message = connectionSocket.recv(1024)
filename = message.split()[1]
f = open(filename[1:].decode())
outputdata = f.read()
# Send one HTTP header line into socket
http_response = 'HTTP/1.1 200 OK\n'
connectionSocket.send(http_response.encode())
connectionSocket.send("\r\n".encode())
connectionSocket.send("\r\n".encode())
# Send the content of the requested file to the client
for i in range(0, len(outputdata)):
connectionSocket.send(outputdata[i].encode())
connectionSocket.close()
except IOError:
# DO LATER
serverSocket.close()
sys.exit()
solution2
0 2020-09-08 12:00:19
I would use the http.server library
import http.server
import socketserver
PORT = 8080
Handler = http.server.SimpleHTTPRequestHandler
with socketserver.TCPServer(("", PORT), Handler) as httpd:
httpd.serve_forever()
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