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from django.db import models
from django.contrib.auth.models import User
from django.contrib.contenttypes.models import ContentType
from django.contrib.contenttypes.fields import GenericForeignKey
from django.conf import settings
import re
class SuspiciousInput(models.Model):
"""Model for collecting suspicios user input.
Call the check_input method with this attributes:
content_object = Model instance of a saved(!) object
user = user
text = text to check for suspicious content
Example:
is_suspicous = SuspiciousInput.check_input(content_object=post,
user=post.user, text=post.body)
"""
text = models.CharField(
max_length=200, verbose_name='suspicious user input')
user = models.ForeignKey(User, verbose_name='related user')
content_type = models.ForeignKey(ContentType, verbose_name='related model')
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey('content_type', 'object_id')
class Meta:
ordering = ['content_type_id']
default_permissions = ('change', 'delete',)
def __str__(self):
return self.text
def clean(self):
# Cleaning fields
max_chars = self._meta.get_field('text').max_length
if len(self.text) >= max_chars:
# Truncate the text to fit with max_length of field
# otherwise a Database error is thrown
self.text = self.text[:max_chars]
def is_suspicious(self):
if any(x in self.text.lower() for x in settings.ANTI_SPAM_KWRDS):
return True
if re.search(settings.ANTI_SPAM_PHONE_NR, self.text):
return True
return False
@classmethod
def check_input(cls, *args, **kwargs):
user_input = cls(*args, **kwargs)
is_spam = user_input.is_suspicious()
if is_spam:
try:
user_input.clean()
user_input.save()
except:
pass
return is_spam
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