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