Python3 Site 127.0.0.1 sent invalid response

Question

Python3 Site 127.0.0.1 sent invalid response

When I first started learning python socket . Then I immediately wrote my own tcp server similar to others. My old code, which worked all the time on python 3.4.4, now I have python 3.6.1 installed . Mistake:

Страница недоступна

Сайт 127.0.0.1 отправил недействительный ответ.
ERR_INVALID_HTTP_RESPONSE

Code from an old project https://github.com/Danchick1337/Punch-Network:

# -*- coding: utf-8 -*-
#* Import all the necessary modules and continuation of the code
from time import gmtime, strftime
import socket, requests
import sys, os, time
support_thread = False #*thread not support
main_file = 'punch-network.py' #main-file not other file 'main'
def tcp_server(): #server code socket
        try:
                global data, getHost, getPort, os, buffer, timed, full, clear
                os = 'windows' ; os_linux_machine = 'unix'
                true_status = 200 ; false_status = 404 
                buffer = 1024 ; timed = strftime("%Y:%H:%M:%S", gmtime()) ; clear = 'cls'
                getHost = '127.0.0.1' ; getPort = int(sys.argv[1]) ; start = sys.argv[2]
                full = (getHost, getPort)
                if start == '-run_server':

                        print(' Punch-Network Started at '+'['+timed+']\r')
                        print('     -- Punch-Network Log --\r\n')

                        try:
                                punch = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
                                punch.bind(full) ; punch.listen(5)

                                while True:
                                        conn, full = punch.accept()
                                        data = conn.recv(buffer)
                                        if not data:
                                                only_data_error = True 
                                                if only_data_error:
                                                        print('error')
                                        #handling module
                                        else:

                                                conn.sendall(b"""
                                                        <html>
                                                        <head>
                                                        <title>Punch-Network</title>
                                                        </head>
                                                        <body>
                                                        <h3>Punch-Network Version 0.BETA Worked!</h3>
                                                        </body>
                                                        </html>
                                                """)
                                pass
                                punch.close()
                        except socket.herror as herr:
                                print('error')
                        except socket.timeout as terr:
                                print('error')
                        except socket.gaierror as gerr:
                                print('error')
                else:
                        print('Error options, true-options: punch-network.py port -run_server')


tcp_server()

Removed all the extra modules. The most common tcp server with only a modified interface. Previously, everything worked, I went to 127.0.0.1:порт and I already displayed that everything it works. Now, neither the server nor the client are working.

0

python python-3.x python-3.6 tcp

Author: you have no pass , 2017-05-08

Source

1 answers

score 2 · Accepted Answer

Before sending the page content, for the correct processing by the browser, you need to add a header that looks something like this:

conn.send(b"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n")

and below is a call to the conn.sendall(...)