string validation

[Manuele]

Hi!

I have a quite specific question... can anyone help me to implement a
validator that reject all text containing a URL inside?

Some spammers are annoying me registering some fake account introducing
links in registration fields such like first name, last name... I hope
in this way to limit it. Adding Google reCaptcha v2 to the registration
forms didn't help.

Thanks a lot

    Manuele

[Raul Monares]

I found this code on the web

# Python code to find the URL from an input string

# Using the regular expression

import re

def Find(string):

# findall() has been used

# with valid conditions for urls in string

regex = r"(?i)\b((?:https?://|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'\".,<>?«»“”‘’]))"

url = re.findall(regex,string)

return [x[0] for x in url]

# Driver Code

string = 'My Profile: https://auth.geeksforgeeks.org/user/Chinmoy%20Lenka/articles in the portal of http://www.geeksforgeeks.org/'

print("Urls: ", Find(string))

[Chris]

Hi, i don’t know a specific way to do that but maybe the following can help.

You can create a function which delete/disable the account with if some url patterns are found in first name and last name

In your models add this function:

def _valid_user(s, i):

    # i —> contains the user id

    # s —> contains a dictionary with the user information

  

    if any(c in s.first_name for c in ['www', 'http', 'https', '%', '/', '.']):

        print('spammer user')

        print('dissabling account’)

        

   

    elif any(c in s.last_name for c in ['www', 'http', 'https', '%', '/', '.']):

        print('spammer user')

        print('dissabling account')

And this after auth declaration:

db.auth_user._after_insert.append(_valid_user)

Or maybe declaring manually the auth table with a custom validator, but I'm not sure if is possible…

Cheers.

Chris.

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[Manuele]

Thanks for the valuable advice about the regex!

This is my solution:

https://gist.github.com/manuelep/19a0e9ab6723086fdbf1ffa8e858a5f9

Cheers

    Manuele

Il 12/05/21 19:08, Raul Monares ha scritto:

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