web chat (simple as death) in Python3

      Brak komentarzy do web chat (simple as death) in Python3

Prosty web czatowy w pythonie 馃檪

Tworzymy dwa pliczki:

touch www.py # kod serwera www
touch chat.txt # baza danych czatu

Zawarto艣膰聽pliku 聽www.py :

Very simple python web-server

import http.server import string from os import curdir, sep import cgi import time PORT_NUMBER = 8080 class myHandler(http.server.BaseHTTPRequestHandler): #Handler GET def do_GET(self): try: self.send_response(200) self.send_header('Content-type','text/html') self.end_headers() self.wfile.write(bytes("<html><head><title>Simple-CHAT</title></head>", "utf-8")) self.wfile.write(bytes("<body><frameset cols='90%,10%'><frame>", "utf-8")) with open(curdir + sep + "chat.txt") as f: for line in f: line=str.split(line,'\t') self.wfile.write(bytes("<p>"+line[0]+":"+line[1]+": "+line[2]+"</p>", "utf-8")) self.wfile.write(bytes("</frame><frame>", "utf-8")) self.wfile.write(bytes("<form action='/' method='POST'>", "utf-8")) self.wfile.write(bytes("Name:<br>", "utf-8")) self.wfile.write(bytes("<input type='text' name='name' value='Noname'>", "utf-8")) self.wfile.write(bytes("<input type='text' name='mes' value='blabllablalb'>", "utf-8")) self.wfile.write(bytes("<input type='submit' value='Send'>", "utf-8")) self.wfile.write(bytes("</form>", "utf-8")) except IOError: self.send_error(404,'File Not Found: %s' % self.path) def do_POST(self): form = cgi.FieldStorage( fp=self.rfile, headers=self.headers, environ={'REQUEST_METHOD':'POST', 'CONTENT_TYPE':self.headers['Content-Type'], }) print ("Your name is: %s" % form["name"].value) self.send_response(200) self.end_headers() self.wfile.write(bytes("<html><head> <meta http-equiv='refresh' content='1;url='/'></head><body><p>", "utf-8")) self.wfile.write(bytes("Thanks %s !" % form["name"].value, "utf-8")) with open(curdir + sep + "chat.txt", "a") as f: f.write("\n"+time.asctime()+"\t"+form["name"].value+"\t"+form["mes"].value) try: server = http.server.HTTPServer(('', PORT_NUMBER), myHandler) print ("Start chat on " , PORT_NUMBER) server.serve_forever() except KeyboardInterrupt: print ('^C received, chat off') server.socket.close()
web-chat


uruchamiamy skrypt poleceniem:

 chmod +x www.py 
python www.py

Czat znajduje sie pod adresm $adres_hosta:8080 ( w moim przypadku localhost:8080)
Screenshot from 2016-09-13 19-21-29

A teraz pod lupa jak wygl膮da w pakietach komunikacja HTTP POST/GET:

Komunikat GET / od klienta
Screenshot from 2016-09-13 19-10-11

Komunikat 200 OK od serwera
Screenshot from 2016-09-13 19-12-43

POST od klienta
Screenshot from 2016-09-13 19-17-05

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