====== Semplice autenticazione basata su cookie in Bottle (Python) ======
Autore: **//Fabio Di Matteo//** \\ Ultima revisione:  **//  10/05/2024  - 17:47   //**  // //

Come da titolo una semplice autenticazione basata sui cookie. \\

L'utilizzo della funzione principale **checkLogin()** è alquanto semplice:
<code python>
if (not checkLogin()):
		print("Non autorizzato")
		
	else:
		print("Benvenuto")
		
</code>

Di seguito il codice completo.

**login.py**
<code python>
from bottle import Bottle,route, run, template, static_file, request,redirect, response,get, post
import hashlib


users=[
	{"user":"fabio","password":"a53bd0415947807bcb95ceec535820ee","type":"0"},
	{"user":"francesco","password":"0581938f0767a65b373cea80e905c25f","type":"0"}
]



COOKIESECRET="38f0767a65b373cea"
COOKIE_user="usr-py"
COOKIE_pass="pass-py"


def checkLogin():
	username=  request.get_cookie(COOKIE_user, secret=COOKIESECRET)
	password=  request.get_cookie(COOKIE_pass, secret=COOKIESECRET)
	ret=False
	
	for i in range(0,len(users)):
		if (username ==users[i]["user"] and password == users[i]["password"] ):
			ret=True	
	
	return ret		


def dologin():
	username = request.forms.get('username')
	password = request.forms.get('password')
	password=hashlib.md5(password.encode("utf-8")).hexdigest()
	print("Login: %s/%s" % (username, password))
 
	response.set_cookie(COOKIE_user, username , secret=COOKIESECRET)
	response.set_cookie(COOKIE_pass, password, secret=COOKIESECRET)
	redirect("/")

def loginform():
	return template('login')
	
def logout():
	response.set_cookie(COOKIE_user, "")
	response.set_cookie(COOKIE_pass,"")
	redirect("/")




</code> 

**main.py**
<code python>
#!/usr/bin/python3

import  os
from bottle import Bottle,route, run, template, static_file, request,redirect, response,get, post
from login import *

 
global app 
app=Bottle()
 
PORT=8080
 
def start_server():
	run(app , host='0.0.0.0', port=PORT, reloader=True, debug=True)

@app.route("/")
def home():
	if (not checkLogin()):
		print("Non autorizzato")
		redirect("/loginform")
	else:
		print("Benvenuto")
		return "<p>Benvenuto</p>"	
 

def setup_routing(app):
    app.route('/logout', ['GET', 'POST'], logout) 
    app.route('/dologin', ['GET', 'POST'], dologin)
    app.route('/loginform', ['GET', 'POST'], loginform)  


setup_routing(app) 
start_server()

</code>