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annotate antispam/utils.py @ 645:99f7917702ca

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Fix 081a88b3bfc8, javascript resize of forum images. Commit 081a88b3bfc8 broke those pages that loaded forums.js but did not load the imagesLoaded jQuery extension. Now we have arranged it so that only the forums topic view loads imagesLoaded and put the resizing javascript inline.
author Brian Neal <bgneal@gmail.com>
date Mon, 11 Mar 2013 15:30:25 -0500
parents 08d905e38a86
children feafa1c3d356
rev   line source
bgneal@214 1 """Antispam utility functions other apps can use."""
bgneal@215 2 import datetime
bgneal@215 3 import logging
bgneal@215 4 import textwrap
bgneal@215 5
bgneal@214 6 from django.core.cache import cache
bgneal@214 7
bgneal@214 8 from antispam import SPAM_PHRASE_KEY
bgneal@214 9 from antispam.models import SpamPhrase
bgneal@215 10 from core.functions import email_admins
bgneal@563 11 from bio.models import STA_SUSPENDED, STA_SPAMMER
bgneal@563 12 from comments.models import Comment
bgneal@563 13 from forums.tools import delete_user_posts
bgneal@214 14
bgneal@214 15
bgneal@214 16 def contains_spam(s):
bgneal@214 17 """This function returns True if the supplied string s contains any spam
bgneal@214 18 phrases and False otherwise.
bgneal@214 19 """
bgneal@214 20 phrases = _get_spam_phrases()
bgneal@215 21 s = s.lower()
bgneal@214 22 for spam in phrases:
bgneal@214 23 if spam in s:
bgneal@214 24 return True
bgneal@214 25
bgneal@214 26 return False
bgneal@214 27
bgneal@214 28
bgneal@215 29 def spam_check(request, content):
bgneal@215 30 """This function checks the supplied content for spam if the user from the
bgneal@215 31 supplied request is a stranger (new to the site). If spam is found, the
bgneal@215 32 function makes a log entry, emails the admins, suspends the user's account
bgneal@215 33 and returns True. If spam is not found, False is returned.
bgneal@215 34 It is assumed that request.user is an authenticated user and thus has a
bgneal@215 35 user profile.
bgneal@215 36 """
bgneal@215 37 user = request.user
bgneal@215 38 if user.get_profile().is_stranger() and contains_spam(content):
bgneal@215 39
bgneal@215 40 ip = request.META.get('REMOTE_ADDR', "unknown")
bgneal@215 41
bgneal@215 42 msg = textwrap.dedent("""\
bgneal@215 43 SPAM FILTER TRIPPED by %s
bgneal@215 44 PATH: %s
bgneal@215 45 IP: %s
bgneal@215 46 Message:
bgneal@215 47 %s
bgneal@215 48 """ % (user.username, request.path, ip, content))
bgneal@215 49
bgneal@215 50 logging.info(msg)
bgneal@215 51 email_admins("SPAM FILTER TRIPPED BY %s" % user.username, msg)
bgneal@215 52 suspend_user(user)
bgneal@215 53 return True
bgneal@215 54
bgneal@215 55 return False
bgneal@215 56
bgneal@215 57
bgneal@215 58 def suspend_user(user):
bgneal@215 59 """This function marks the user as suspended."""
bgneal@215 60 user.is_active = False
bgneal@215 61 user.save()
bgneal@215 62 profile = user.get_profile()
bgneal@215 63 profile.status = STA_SUSPENDED
bgneal@215 64 profile.status_date = datetime.datetime.now()
bgneal@562 65 profile.save(content_update=False)
bgneal@563 66 logging.info("User suspended: %s", user.username)
bgneal@563 67
bgneal@563 68
bgneal@563 69 def deactivate_spammer(user):
bgneal@563 70 """
bgneal@563 71 This function deactivate's the user, marks them as a spammer, then
bgneal@563 72 deletes the user's comments and forum posts. The spammer's profile is
bgneal@563 73 cleared so any spam links won't show up anymore.
bgneal@563 74
bgneal@563 75 """
bgneal@563 76 user.is_active = False
bgneal@563 77 user.save()
bgneal@563 78
bgneal@563 79 profile = user.get_profile()
bgneal@563 80 profile.status = STA_SPAMMER
bgneal@563 81 profile.status_date = datetime.datetime.now()
bgneal@625 82 profile.reset()
bgneal@608 83 if profile.avatar:
bgneal@608 84 profile.avatar.delete(save=False)
bgneal@563 85 profile.save()
bgneal@563 86
bgneal@625 87 # delete comments & forum posts
bgneal@563 88 Comment.objects.filter(user=user).delete()
bgneal@563 89 delete_user_posts(user)
bgneal@563 90
bgneal@625 91 # delete elsewhere links
bgneal@625 92 user.social_network_profiles.all().delete()
bgneal@625 93 user.instant_messenger_profiles.all().delete()
bgneal@625 94 user.website_profiles.all().delete()
bgneal@625 95
bgneal@625 96 # delete shouts
bgneal@625 97 user.shout_set.all().delete()
bgneal@625 98
bgneal@563 99 logging.info("User deactivated for spam: %s", user.username)
bgneal@316 100
bgneal@215 101
bgneal@214 102 def _get_spam_phrases():
bgneal@563 103 """
bgneal@563 104 This function returns the current list of spam phrase strings.
bgneal@214 105 The strings are cached to avoid hitting the database.
bgneal@563 106
bgneal@214 107 """
bgneal@214 108 phrases = cache.get(SPAM_PHRASE_KEY)
bgneal@214 109 if phrases:
bgneal@214 110 return phrases
bgneal@214 111
bgneal@214 112 phrases = SpamPhrase.objects.values_list('phrase', flat=True)
bgneal@214 113 cache.set(SPAM_PHRASE_KEY, phrases)
bgneal@214 114 return phrases