348 lines
16 KiB
Python
348 lines
16 KiB
Python
from django.core import formfields, template_loader, validators
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from django.core.mail import mail_admins, mail_managers
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from django.core.exceptions import Http404, ObjectDoesNotExist
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from django.core.extensions import DjangoContext as Context
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from django.models.auth import users
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from django.models.comments import comments, freecomments
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from django.models.core import contenttypes
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from django.parts.auth.formfields import AuthenticationForm
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from django.utils.httpwrappers import HttpResponse, HttpResponseRedirect
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from django.utils.text import normalize_newlines
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from django.conf.settings import BANNED_IPS, COMMENTS_ALLOW_PROFANITIES, COMMENTS_SKETCHY_USERS_GROUP, COMMENTS_FIRST_FEW, SITE_ID
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import base64, datetime
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COMMENTS_PER_PAGE = 20
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class PublicCommentManipulator(AuthenticationForm):
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"Manipulator that handles public registered comments"
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def __init__(self, user, ratings_required, ratings_range, num_rating_choices):
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AuthenticationForm.__init__(self)
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self.ratings_range, self.num_rating_choices = ratings_range, num_rating_choices
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choices = [(c, c) for c in ratings_range]
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def get_validator_list(rating_num):
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if rating_num <= num_rating_choices:
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return [validators.RequiredIfOtherFieldsGiven(['rating%d' % i for i in range(1, 9) if i != rating_num], "This rating is required because you've entered at least one other rating.")]
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else:
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return []
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self.fields.extend([
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formfields.LargeTextField(field_name="comment", maxlength=3000, is_required=True,
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validator_list=[self.hasNoProfanities]),
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formfields.RadioSelectField(field_name="rating1", choices=choices,
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is_required=ratings_required and num_rating_choices > 0,
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validator_list=get_validator_list(1),
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),
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formfields.RadioSelectField(field_name="rating2", choices=choices,
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is_required=ratings_required and num_rating_choices > 1,
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validator_list=get_validator_list(2),
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),
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formfields.RadioSelectField(field_name="rating3", choices=choices,
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is_required=ratings_required and num_rating_choices > 2,
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validator_list=get_validator_list(3),
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),
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formfields.RadioSelectField(field_name="rating4", choices=choices,
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is_required=ratings_required and num_rating_choices > 3,
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validator_list=get_validator_list(4),
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),
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formfields.RadioSelectField(field_name="rating5", choices=choices,
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is_required=ratings_required and num_rating_choices > 4,
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validator_list=get_validator_list(5),
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),
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formfields.RadioSelectField(field_name="rating6", choices=choices,
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is_required=ratings_required and num_rating_choices > 5,
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validator_list=get_validator_list(6),
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),
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formfields.RadioSelectField(field_name="rating7", choices=choices,
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is_required=ratings_required and num_rating_choices > 6,
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validator_list=get_validator_list(7),
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),
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formfields.RadioSelectField(field_name="rating8", choices=choices,
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is_required=ratings_required and num_rating_choices > 7,
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validator_list=get_validator_list(8),
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),
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])
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if not user.is_anonymous():
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self["username"].is_required = False
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self["username"].validator_list = []
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self["password"].is_required = False
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self["password"].validator_list = []
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self.user_cache = user
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def hasNoProfanities(self, field_data, all_data):
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if COMMENTS_ALLOW_PROFANITIES:
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return
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return validators.hasNoProfanities(field_data, all_data)
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def get_comment(self, new_data):
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"Helper function"
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return comments.Comment(None, self.get_user_id(), new_data["content_type_id"],
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new_data["object_id"], new_data.get("headline", "").strip(),
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new_data["comment"].strip(), new_data.get("rating1", None),
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new_data.get("rating2", None), new_data.get("rating3", None),
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new_data.get("rating4", None), new_data.get("rating5", None),
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new_data.get("rating6", None), new_data.get("rating7", None),
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new_data.get("rating8", None), new_data.get("rating1", None) is not None,
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datetime.datetime.now(), new_data["is_public"], new_data["ip_address"], False, SITE_ID)
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def save(self, new_data):
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today = datetime.date.today()
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c = self.get_comment(new_data)
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for old in comments.get_list(content_type__id__exact=new_data["content_type_id"],
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object_id__exact=new_data["object_id"], user__id__exact=self.get_user_id()):
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# Check that this comment isn't duplicate. (Sometimes people post
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# comments twice by mistake.) If it is, fail silently by pretending
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# the comment was posted successfully.
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if old.submit_date.date() == today and old.comment == c.comment \
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and old.rating1 == c.rating1 and old.rating2 == c.rating2 \
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and old.rating3 == c.rating3 and old.rating4 == c.rating4 \
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and old.rating5 == c.rating5 and old.rating6 == c.rating6 \
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and old.rating7 == c.rating7 and old.rating8 == c.rating8:
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return old
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# If the user is leaving a rating, invalidate all old ratings.
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if c.rating1 is not None:
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old.valid_rating = False
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old.save()
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c.save()
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# If the commentor has posted fewer than COMMENTS_FIRST_FEW comments,
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# send the comment to the managers.
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if self.user_cache.get_comments_comment_count() <= COMMENTS_FIRST_FEW:
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message = 'This comment was posted by a user who has posted fewer than %s comments:\n\n%s' % \
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(COMMENTS_FIRST_FEW, c.get_as_text())
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mail_managers("Comment posted by rookie user", message)
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if COMMENTS_SKETCHY_USERS_GROUP and COMMENTS_SKETCHY_USERS_GROUP in [g.id for g in self.user_cache.get_group_list()]:
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message = 'This comment was posted by a sketchy user:\n\n%s' % c.get_as_text()
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mail_managers("Comment posted by sketchy user (%s)" % self.user_cache.username, c.get_as_text())
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return c
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class PublicFreeCommentManipulator(formfields.Manipulator):
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"Manipulator that handles public free (unregistered) comments"
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def __init__(self):
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self.fields = (
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formfields.TextField(field_name="person_name", maxlength=50, is_required=True,
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validator_list=[self.hasNoProfanities]),
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formfields.LargeTextField(field_name="comment", maxlength=3000, is_required=True,
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validator_list=[self.hasNoProfanities]),
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)
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def hasNoProfanities(self, field_data, all_data):
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if COMMENTS_ALLOW_PROFANITIES:
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return
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return validators.hasNoProfanities(field_data, all_data)
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def get_comment(self, new_data):
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"Helper function"
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return freecomments.FreeComment(None, new_data["content_type_id"],
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new_data["object_id"], new_data["comment"].strip(),
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new_data["person_name"].strip(), datetime.datetime.now(), new_data["is_public"],
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new_data["ip_address"], False, SITE_ID)
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def save(self, new_data):
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today = datetime.date.today()
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c = self.get_comment(new_data)
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# Check that this comment isn't duplicate. (Sometimes people post
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# comments twice by mistake.) If it is, fail silently by pretending
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# the comment was posted successfully.
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for old_comment in freecomments.get_list(content_type__id__exact=new_data["content_type_id"],
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object_id__exact=new_data["object_id"], person_name__exact=new_data["person_name"],
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submit_date__year=today.year, submit_date__month=today.month,
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submit_date__day=today.day):
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if old_comment.comment == c.comment:
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return old_comment
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c.save()
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return c
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def post_comment(request):
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"""
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Post a comment
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Redirects to the `comments.comments.comment_was_posted` view upon success.
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Templates: `comment_preview`
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Context:
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comment
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the comment being posted
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comment_form
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the comment form
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options
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comment options
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target
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comment target
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hash
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security hash (must be included in a posted form to succesfully
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post a comment).
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rating_options
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comment ratings options
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ratings_optional
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are ratings optional?
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ratings_required
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are ratings required?
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rating_range
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range of ratings
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rating_choices
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choice of ratings
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"""
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if not request.POST:
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raise Http404, "Only POSTs are allowed"
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try:
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options, target, security_hash = request.POST['options'], request.POST['target'], request.POST['gonzo']
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except KeyError:
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raise Http404, "One or more of the required fields wasn't submitted"
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photo_options = request.POST.get('photo_options', '')
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rating_options = normalize_newlines(request.POST.get('rating_options', ''))
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if comments.get_security_hash(options, photo_options, rating_options, target) != security_hash:
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raise Http404, "Somebody tampered with the comment form (security violation)"
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# Now we can be assured the data is valid.
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if rating_options:
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rating_range, rating_choices = comments.get_rating_options(base64.decodestring(rating_options))
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else:
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rating_range, rating_choices = [], []
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content_type_id, object_id = target.split(':') # target is something like '52:5157'
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try:
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obj = contenttypes.get_object(pk=content_type_id).get_object_for_this_type(pk=object_id)
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except ObjectDoesNotExist:
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raise Http404, "The comment form had an invalid 'target' parameter -- the object ID was invalid"
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option_list = options.split(',') # options is something like 'pa,ra'
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new_data = request.POST.copy()
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new_data['content_type_id'] = content_type_id
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new_data['object_id'] = object_id
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new_data['ip_address'] = request.META['REMOTE_ADDR']
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new_data['is_public'] = comments.IS_PUBLIC in option_list
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response = HttpResponse()
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manipulator = PublicCommentManipulator(request.user,
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ratings_required=comments.RATINGS_REQUIRED in option_list,
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ratings_range=rating_range,
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num_rating_choices=len(rating_choices))
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errors = manipulator.get_validation_errors(new_data)
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# If user gave correct username/password and wasn't already logged in, log them in
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# so they don't have to enter a username/password again.
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if manipulator.get_user() and new_data.has_key('password') and manipulator.get_user().check_password(new_data['password']):
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request.session[users.SESSION_KEY] = manipulator.get_user_id()
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if errors or request.POST.has_key('preview'):
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class CommentFormWrapper(formfields.FormWrapper):
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def __init__(self, manipulator, new_data, errors, rating_choices):
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formfields.FormWrapper.__init__(self, manipulator, new_data, errors)
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self.rating_choices = rating_choices
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def ratings(self):
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field_list = [self['rating%d' % (i+1)] for i in range(len(rating_choices))]
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for i, f in enumerate(field_list):
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f.choice = rating_choices[i]
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return field_list
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comment = errors and '' or manipulator.get_comment(new_data)
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comment_form = CommentFormWrapper(manipulator, new_data, errors, rating_choices)
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t = template_loader.get_template('comments/preview')
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c = Context(request, {
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'comment': comment,
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'comment_form': comment_form,
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'options': options,
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'target': target,
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'hash': security_hash,
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'rating_options': rating_options,
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'ratings_optional': comments.RATINGS_OPTIONAL in option_list,
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'ratings_required': comments.RATINGS_REQUIRED in option_list,
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'rating_range': rating_range,
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'rating_choices': rating_choices,
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})
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elif request.POST.has_key('post'):
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# If the IP is banned, mail the admins, do NOT save the comment, and
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# serve up the "Thanks for posting" page as if the comment WAS posted.
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if request.META['REMOTE_ADDR'] in BANNED_IPS:
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mail_admins("Banned IP attempted to post comment", str(request.POST) + "\n\n" + str(request.META))
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else:
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manipulator.do_html2python(new_data)
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comment = manipulator.save(new_data)
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return HttpResponseRedirect("/comments/posted/?c=%s:%s" % (content_type_id, object_id))
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else:
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raise Http404, "The comment form didn't provide either 'preview' or 'post'"
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response.write(t.render(c))
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return response
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def post_free_comment(request):
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"""
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Post a free comment (not requiring a log in)
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Redirects to `comments.comments.comment_was_posted` view on success.
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Templates: `comment_free_preview`
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Context:
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comment
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comment being posted
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comment_form
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comment form object
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options
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comment options
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target
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comment target
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hash
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security hash (must be included in a posted form to succesfully
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post a comment).
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"""
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if not request.POST:
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raise Http404, "Only POSTs are allowed"
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try:
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options, target, security_hash = request.POST['options'], request.POST['target'], request.POST['gonzo']
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except KeyError:
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raise Http404, "One or more of the required fields wasn't submitted"
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if comments.get_security_hash(options, '', '', target) != security_hash:
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raise Http404, "Somebody tampered with the comment form (security violation)"
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content_type_id, object_id = target.split(':') # target is something like '52:5157'
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content_type = contenttypes.get_object(pk=content_type_id)
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try:
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obj = content_type.get_object_for_this_type(pk=object_id)
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except ObjectDoesNotExist:
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raise Http404, "The comment form had an invalid 'target' parameter -- the object ID was invalid"
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option_list = options.split(',')
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new_data = request.POST.copy()
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new_data['content_type_id'] = content_type_id
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new_data['object_id'] = object_id
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new_data['ip_address'] = request.META['REMOTE_ADDR']
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new_data['is_public'] = comments.IS_PUBLIC in option_list
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response = HttpResponse()
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manipulator = PublicFreeCommentManipulator()
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errors = manipulator.get_validation_errors(new_data)
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if errors or request.POST.has_key('preview'):
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comment = errors and '' or manipulator.get_comment(new_data)
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t = template_loader.get_template('comments/free_preview')
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c = Context(request, {
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'comment': comment,
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'comment_form': formfields.FormWrapper(manipulator, new_data, errors),
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'options': options,
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'target': target,
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'hash': security_hash,
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})
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elif request.POST.has_key('post'):
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# If the IP is banned, mail the admins, do NOT save the comment, and
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# serve up the "Thanks for posting" page as if the comment WAS posted.
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if request.META['REMOTE_ADDR'] in BANNED_IPS:
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from django.core.mail import mail_admins
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mail_admins("Practical joker", str(request.POST) + "\n\n" + str(request.META))
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else:
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manipulator.do_html2python(new_data)
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comment = manipulator.save(new_data)
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return HttpResponseRedirect("/comments/posted/?c=%s:%s" % (content_type_id, object_id))
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else:
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raise Http404, "The comment form didn't provide either 'preview' or 'post'"
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response.write(t.render(c))
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return response
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def comment_was_posted(request):
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"""
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Display "comment was posted" success page
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Templates: `comment_posted`
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Context:
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object
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The object the comment was posted on
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"""
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obj = None
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if request.GET.has_key('c'):
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content_type_id, object_id = request.GET['c'].split(':')
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try:
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content_type = contenttypes.get_object(pk=content_type_id)
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obj = content_type.get_object_for_this_type(pk=object_id)
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except ObjectDoesNotExist:
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pass
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t = template_loader.get_template('comments/posted')
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c = Context(request, {
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'object': obj,
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})
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return HttpResponse(t.render(c))
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