input_validators.py

##
# Functions for validating and sanitizing user input coming in from the web front-end.

import re
import html


def is_strong_password(password):
	"""
	This function will validate a password to ensure it meets requirements
	:param password: The password to be validated.
	:return: Returns true or false dependant on if password is valid
	"""
	return len(password) >= 12


def cleanse_input(input_string):
	"""
	This function will take an input string and perform cleansing functions on it.  This will help ensure that injection
	attacks are prevented
	:param input_string: The string as given by the http request
	:return input_string:  Ths string after all cleansing functions are done on it.
	"""
	input_string = input_string.strip()
	input_string = html.escape(input_string)
	return input_string