def add_user():
"""
Register a user, looking up username and password in request.form.
Validates the username and password.
Returns:
A JSON string about the registration status.
"""
username = request.form['username']
password = request.form['password']
confirmation = request.form['confirmPassword']
if not confirmed_password_valid(password, confirmation):
return fail_registration(
"Your password and confirmation didn't match up.")
if password.strip() == '':
return fail_registration("Passwords can not be blank.")
if ' ' in password:
return fail_registration("Passwords can not have spaces")
users = Users(g.database_service)
if not users.is_valid_username(username):
error = """
Username %s is not valid.
Either it's taken, it has a space, or it's blank.
""" % (username)
return fail_registration(error)
new_user = users.register_user(username, password)
session['user_id'] = new_user.get_id()
return success_registration()
