darknet-lantern/SimpleX/utils.py

import re

def IsOnionValid(url: str)-> bool:
    """
    Checks if the domain(param) is a valid onion domain and return True else False.
    """
    try:
        pattern = re.compile(r"^[A-Za-z0-9:/._%-=#?&@]+(.onion)$")
        url = url.strip().removesuffix('/')
        if url.startswith('http://'):
            domain = url.split('/')[2]
            if pattern.fullmatch(domain) is not None:
                if len(domain.split('.')) > 3:
                    return False
                else:
                    if len(domain) < 62:
                        return False
                    return True
            elif pattern.fullmatch(domain) is None:
                return False
            else:
                return False
        else:
                        #TODO : edit the url to make sure it has http:// at the beginning, in case if it's missing? (problem is that it only returns true or false)
            if pattern.fullmatch(url) is not None:
                if len(url.split('.')) > 3:
                    return False
                else:
                    if len(url) < 62:
                        return False
                    return True
            elif pattern.fullmatch(url) is None:
                return False
            else:
                return False
    except Exception as e:
        return False

def IsUrlValid(url:str)->bool:
        """
        Check if url is valid both dark net end clearnet.
        """
        pattern = re.compile(r"^[A-Za-z0-9:/._%-=#?&@]+$")
        url = str(url)
        if len(url) < 4:
                return False
        if url.endswith('.onion'):
                return IsOnionValid(url)
        else:
                if not url.__contains__('.'):
                        return False
                if pattern.fullmatch(url) is None:
                        return False
                return True