[Tutor] Endless loop

[Mike Duncan]

Hi all.,
I have an endless loop issue, frankly I don't know why it is stuck in a endless loop. I don't understand why, I am trying to add a login to a web-sight using python here is the code: (have attached a zip file with the complete web-sight)

@app.route ( "/auth", methods=['GET', 'POST'] )
def authenticate_user():
""" Authenticate a user """
# authenticated = False
# Encrypt password
password = request.form['pwd']
username = request.form['email']
# hash_pass = sha256_crypt.hash(password) # View encrypted password
# Encrypt password
hash_pass = sha256_crypt.hash ( password )
hash_user = sha256_crypt.hash ( username )

userfile = open ( "user_file.txt", "r" )
while userfile:
user = userfile.readline ()
pwdd = userfile.readline ()
blankline = userfile.readline ()
while (blankline == ''):
if (sha256_crypt.verify ( username, hash_user )):
print("Good User")
break
userfile.close ()
# print ( "Password: " + password + " crypto: " + hash_pass )
# print ( "Email: " + username + " crypto: " + hash_user )
# usr_store ( hash_user, hash_pass )
# usr_read ()
if (sha256_crypt.verify ( password, hash_pass )) & (sha256_crypt.verify ( username, hash_user )):
# return Response(str(authenticated))
print ( 'Good Login' )
return render_template ( 'menu.html', currtime=currenttime )
return
else:
print ( 'Bad Login' )
return render_template ( 'home.html', currtime=currenttime )
return
Here is the output:
127.0.0.1 - - [07/Oct/2020 17:46:39] "GET /favicon.ico HTTP/1.1" 404 -
Good User
Good User
Good User
Good User
Good User
Good User
Good User
Good User
Good User
Good User

Any help would be great
Thank you,
Mike