]> git.openstreetmap.org Git - osqa.git/blobdiff - forum/views/commands.py
Merge pull request #26 from udacity/remove_dj_version
[osqa.git] / forum / views / commands.py
index 88c2c07764e744625f2e43ecb50a134574df9b47..62d864f80383314eeeb8b1da8a002adb3fb9a910 100644 (file)
+# -*- coding: utf-8 -*-
+
 import datetime
-from django.conf import settings
-from django.utils import simplejson
-from django.http import HttpResponse, HttpResponseRedirect
-from django.shortcuts import get_object_or_404
-from django.utils.translation import ugettext as _
-from django.template import RequestContext
-from forum.models import *
-from forum.forms import CloseForm
-from forum import auth
-from django.core.urlresolvers import reverse
-from django.contrib.auth.decorators import login_required
-from forum.utils.decorators import ajax_method, ajax_login_required
+import json
 import logging
 
-def vote(request, id):#refactor - pretty incomprehensible view used by various ajax calls
-#issues: this subroutine is too long, contains many magic numbers and other issues
-#it's called "vote" but many actions processed here have nothing to do with voting
-    """
-    vote_type:
-        acceptAnswer : 0,
-        questionUpVote : 1,
-        questionDownVote : 2,
-        favorite : 4,
-        answerUpVote: 5,
-        answerDownVote:6,
-        offensiveQuestion : 7,
-        offensiveAnswer:8,
-        removeQuestion: 9,
-        removeAnswer:10
-        questionSubscribeUpdates:11
-        questionUnSubscribeUpdates:12
-
-    accept answer code:
-        response_data['allowed'] = -1, Accept his own answer   0, no allowed - Anonymous    1, Allowed - by default
-        response_data['success'] =  0, failed                                               1, Success - by default
-        response_data['status']  =  0, By default                                           1, Answer has been accepted already(Cancel)
-
-    vote code:
-        allowed = -3, Don't have enough votes left
-                  -2, Don't have enough reputation score
-                  -1, Vote his own post
-                   0, no allowed - Anonymous
-                   1, Allowed - by default
-        status  =  0, By default
-                   1, Cancel
-                   2, Vote is too old to be canceled
-
-    offensive code:
-        allowed = -3, Don't have enough flags left
-                  -2, Don't have enough reputation score to do this
-                   0, not allowed
-                   1, allowed
-        status  =  0, by default
-                   1, can't do it again
-    """
-    response_data = {
-        "allowed": 1,
-        "success": 1,
-        "status" : 0,
-        "count"  : 0,
-        "message" : ''
-    }
+from urllib import urlencode
+
+from django.core.exceptions import ObjectDoesNotExist
+from django.core.urlresolvers import reverse
+from django.utils.encoding import smart_unicode
+from django.utils.translation import ungettext, ugettext as _
+from django.http import HttpResponse, HttpResponseRedirect, Http404
+from django.shortcuts import get_object_or_404, render_to_response
 
-    def __can_vote(vote_score, user):#refactor - belongs to auth.py
-        if vote_score == 1:#refactor magic number
-            return auth.can_vote_up(request.user)
+from django.contrib import messages
+
+from forum.models import *
+from forum.utils.decorators import ajax_login_required
+from forum.actions import *
+from forum.modules import decorate
+from forum import settings
+
+from decorators import command, CommandException, RefreshPageCommand
+
+class NotEnoughRepPointsException(CommandException):
+    def __init__(self, action, user_reputation=None, reputation_required=None, node=None):
+        if reputation_required is not None and user_reputation is not None:
+            message = _(
+                """Sorry, but you don't have enough reputation points to %(action)s.<br />
+                The minimum reputation required is %(reputation_required)d (yours is %(user_reputation)d).
+                Please check the <a href='%(faq_url)s'>FAQ</a>"""
+            ) % {
+                'action': action,
+                'faq_url': reverse('faq'),
+                'reputation_required' : reputation_required,
+                'user_reputation' : user_reputation,
+            }
         else:
-            return auth.can_vote_down(request.user)
+            message = _(
+                """Sorry, but you don't have enough reputation points to %(action)s.<br />Please check the <a href='%(faq_url)s'>faq</a>"""
+            ) % {'action': action, 'faq_url': reverse('faq')}
+        super(NotEnoughRepPointsException, self).__init__(message)
+
+class CannotDoOnOwnException(CommandException):
+    def __init__(self, action):
+        super(CannotDoOnOwnException, self).__init__(
+                _(
+                        """Sorry but you cannot %(action)s your own post.<br />Please check the <a href='%(faq_url)s'>faq</a>"""
+                        ) % {'action': action, 'faq_url': reverse('faq')}
+                )
+
+class AnonymousNotAllowedException(CommandException):
+    def __init__(self, action):
+        super(AnonymousNotAllowedException, self).__init__(
+                _(
+                        """Sorry but anonymous users cannot %(action)s.<br />Please login or create an account <a href='%(signin_url)s'>here</a>."""
+                        ) % {'action': action, 'signin_url': reverse('auth_signin')}
+                )
+
+class NotEnoughLeftException(CommandException):
+    def __init__(self, action, limit):
+        super(NotEnoughLeftException, self).__init__(
+                _(
+                        """Sorry, but you don't have enough %(action)s left for today..<br />The limit is %(limit)s per day..<br />Please check the <a href='%(faq_url)s'>faq</a>"""
+                        ) % {'action': action, 'limit': limit, 'faq_url': reverse('faq')}
+                )
+
+class CannotDoubleActionException(CommandException):
+    def __init__(self, action):
+        super(CannotDoubleActionException, self).__init__(
+                _(
+                        """Sorry, but you cannot %(action)s twice the same post.<br />Please check the <a href='%(faq_url)s'>faq</a>"""
+                        ) % {'action': action, 'faq_url': reverse('faq')}
+                )
+
+
+@decorate.withfn(command)
+def vote_post(request, id, vote_type):
+    if not request.method == 'POST':
+        raise CommandException(_("Invalid request"))
+
+
+    post = get_object_or_404(Node, id=id).leaf
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('vote'))
+
+    if user == post.author:
+        raise CannotDoOnOwnException(_('vote'))
+
+    if not (vote_type == 'up' and user.can_vote_up() or user.can_vote_down()):
+        reputation_required = int(settings.REP_TO_VOTE_UP) if vote_type == 'up' else int(settings.REP_TO_VOTE_DOWN)
+        action_type = vote_type == 'up' and _('upvote') or _('downvote')
+        raise NotEnoughRepPointsException(action_type, user_reputation=user.reputation, reputation_required=reputation_required, node=post)
+
+    user_vote_count_today = user.get_vote_count_today()
+    user_can_vote_count_today = user.can_vote_count_today()
+
+    if user_vote_count_today >= user.can_vote_count_today():
+        raise NotEnoughLeftException(_('votes'), str(settings.MAX_VOTES_PER_DAY))
+
+    new_vote_cls = (vote_type == 'up') and VoteUpAction or VoteDownAction
+    score_inc = 0
+
+    old_vote = VoteAction.get_action_for(node=post, user=user)
+
+    if old_vote:
+        if old_vote.action_date < datetime.datetime.now() - datetime.timedelta(days=int(settings.DENY_UNVOTE_DAYS)):
+            raise CommandException(
+                    _("Sorry but you cannot cancel a vote after %(ndays)d %(tdays)s from the original vote") %
+                    {'ndays': int(settings.DENY_UNVOTE_DAYS),
+                     'tdays': ungettext('day', 'days', int(settings.DENY_UNVOTE_DAYS))}
+                    )
+
+        old_vote.cancel(ip=request.META['REMOTE_ADDR'])
+        score_inc = (old_vote.__class__ == VoteDownAction) and 1 or -1
+        vote_type = "none"
+    else:
+        new_vote_cls(user=user, node=post, ip=request.META['REMOTE_ADDR']).save()
+        score_inc = (new_vote_cls == VoteUpAction) and 1 or -1
+
+    response = {
+    'commands': {
+    'update_post_score': [id, score_inc],
+    'update_user_post_vote': [id, vote_type]
+    }
+    }
+
+    votes_left = (user_can_vote_count_today - user_vote_count_today) + (vote_type == 'none' and -1 or 1)
+
+    if int(settings.START_WARN_VOTES_LEFT) >= votes_left:
+        response['message'] = _("You have %(nvotes)s %(tvotes)s left today.") % \
+                    {'nvotes': votes_left, 'tvotes': ungettext('vote', 'votes', votes_left)}
+
+    return response
+
+@decorate.withfn(command)
+def flag_post(request, id):
+    if not request.POST:
+        return render_to_response('node/report.html', {'types': settings.FLAG_TYPES})
+
+    post = get_object_or_404(Node, id=id)
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('flag posts'))
+
+    if user == post.author:
+        raise CannotDoOnOwnException(_('flag'))
+
+    if not (user.can_flag_offensive(post)):
+        raise NotEnoughRepPointsException(_('flag posts'))
+
+    user_flag_count_today = user.get_flagged_items_count_today()
+
+    if user_flag_count_today >= int(settings.MAX_FLAGS_PER_DAY):
+        raise NotEnoughLeftException(_('flags'), str(settings.MAX_FLAGS_PER_DAY))
+
+    try:
+        current = FlagAction.objects.get(canceled=False, user=user, node=post)
+        raise CommandException(
+                _("You already flagged this post with the following reason: %(reason)s") % {'reason': current.extra})
+    except ObjectDoesNotExist:
+        reason = request.POST.get('prompt', '').strip()
+
+        if not len(reason):
+            raise CommandException(_("Reason is empty"))
+
+        FlagAction(user=user, node=post, extra=reason, ip=request.META['REMOTE_ADDR']).save()
+
+    return {'message': _("Thank you for your report. A moderator will review your submission shortly.")}
+
+@decorate.withfn(command)
+def like_comment(request, id):
+    comment = get_object_or_404(Comment, id=id)
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('like comments'))
+
+    if user == comment.user:
+        raise CannotDoOnOwnException(_('like'))
+
+    if not user.can_like_comment(comment):
+        raise NotEnoughRepPointsException( _('like comments'), node=comment)
+
+    like = VoteAction.get_action_for(node=comment, user=user)
+
+    if like:
+        like.cancel(ip=request.META['REMOTE_ADDR'])
+        likes = False
+    else:
+        VoteUpCommentAction(node=comment, user=user, ip=request.META['REMOTE_ADDR']).save()
+        likes = True
+
+    return {
+    'commands': {
+    'update_post_score': [comment.id, likes and 1 or -1],
+    'update_user_post_vote': [comment.id, likes and 'up' or 'none']
+    }
+    }
+
+@decorate.withfn(command)
+def delete_comment(request, id):
+    comment = get_object_or_404(Comment, id=id)
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('delete comments'))
+
+    if not user.can_delete_comment(comment):
+        raise NotEnoughRepPointsException( _('delete comments'))
+
+    if not comment.nis.deleted:
+        DeleteAction(node=comment, user=user, ip=request.META['REMOTE_ADDR']).save()
+
+    return {
+    'commands': {
+    'remove_comment': [comment.id],
+    }
+    }
+
+@decorate.withfn(command)
+def mark_favorite(request, id):
+    node = get_object_or_404(Node, id=id)
+
+    if not request.user.is_authenticated():
+        raise AnonymousNotAllowedException(_('mark a question as favorite'))
 
     try:
-        if not request.user.is_authenticated():
-            response_data['allowed'] = 0
-            response_data['success'] = 0
-
-        elif request.is_ajax() and request.method == 'POST':
-            question = get_object_or_404(Question, id=id)
-            vote_type = request.POST.get('type')
-
-            #accept answer
-            if vote_type == '0':
-                answer_id = request.POST.get('postId')
-                answer = get_object_or_404(Answer, id=answer_id)
-                # make sure question author is current user
-                if question.author == request.user:
-                    # answer user who is also question author is not allow to accept answer
-                    if answer.author == question.author:
-                        response_data['success'] = 0
-                        response_data['allowed'] = -1
-                    # check if answer has been accepted already
-                    elif answer.accepted:
-                        auth.onAnswerAcceptCanceled(answer, request.user)
-                        response_data['status'] = 1
-                    else:
-                        # set other answers in this question not accepted first
-                        for answer_of_question in Answer.objects.get_answers_from_question(question, request.user):
-                            if answer_of_question != answer and answer_of_question.accepted:
-                                auth.onAnswerAcceptCanceled(answer_of_question, request.user)
-
-                        #make sure retrieve data again after above author changes, they may have related data
-                        answer = get_object_or_404(Answer, id=answer_id)
-                        auth.onAnswerAccept(answer, request.user)
-                else:
-                    response_data['allowed'] = 0
-                    response_data['success'] = 0
-            # favorite
-            elif vote_type == '4':
-                has_favorited = False
-                fav_questions = FavoriteQuestion.objects.filter(question=question)
-                # if the same question has been favorited before, then delete it
-                if fav_questions is not None:
-                    for item in fav_questions:
-                        if item.user == request.user:
-                            item.delete()
-                            response_data['status'] = 1
-                            response_data['count']  = len(fav_questions) - 1
-                            if response_data['count'] < 0:
-                                response_data['count'] = 0
-                            has_favorited = True
-                # if above deletion has not been executed, just insert a new favorite question
-                if not has_favorited:
-                    new_item = FavoriteQuestion(question=question, user=request.user)
-                    new_item.save()
-                    response_data['count']  = FavoriteQuestion.objects.filter(question=question).count()
-                Question.objects.update_favorite_count(question)
-
-            elif vote_type in ['1', '2', '5', '6']:
-                post_id = id
-                post = question
-                vote_score = 1
-                if vote_type in ['5', '6']:
-                    answer_id = request.POST.get('postId')
-                    answer = get_object_or_404(Answer, id=answer_id)
-                    post_id = answer_id
-                    post = answer
-                if vote_type in ['2', '6']:
-                    vote_score = -1
-
-                if post.author == request.user:
-                    response_data['allowed'] = -1
-                elif not __can_vote(vote_score, request.user):
-                    response_data['allowed'] = -2
-                elif post.votes.filter(user=request.user).count() > 0:
-                    vote = post.votes.filter(user=request.user)[0]
-                    # unvote should be less than certain time
-                    if (datetime.datetime.now().day - vote.voted_at.day) >= auth.VOTE_RULES['scope_deny_unvote_days']:
-                        response_data['status'] = 2
-                    else:
-                        voted = vote.vote
-                        if voted > 0:
-                            # cancel upvote
-                            auth.onUpVotedCanceled(vote, post, request.user)
-
-                        else:
-                            # cancel downvote
-                            auth.onDownVotedCanceled(vote, post, request.user)
-
-                        response_data['status'] = 1
-                        response_data['count'] = post.score
-                elif Vote.objects.get_votes_count_today_from_user(request.user) >= auth.VOTE_RULES['scope_votes_per_user_per_day']:
-                    response_data['allowed'] = -3
-                else:
-                    vote = Vote(user=request.user, content_object=post, vote=vote_score, voted_at=datetime.datetime.now())
-                    if vote_score > 0:
-                        # upvote
-                        auth.onUpVoted(vote, post, request.user)
-                    else:
-                        # downvote
-                        auth.onDownVoted(vote, post, request.user)
-
-                    votes_left = auth.VOTE_RULES['scope_votes_per_user_per_day'] - Vote.objects.get_votes_count_today_from_user(request.user)
-                    if votes_left <= auth.VOTE_RULES['scope_warn_votes_left']:
-                        response_data['message'] = u'%s votes left' % votes_left
-                    response_data['count'] = post.score
-            elif vote_type in ['7', '8']:
-                post = question
-                post_id = id
-                if vote_type == '8':
-                    post_id = request.POST.get('postId')
-                    post = get_object_or_404(Answer, id=post_id)
-
-                if FlaggedItem.objects.get_flagged_items_count_today(request.user) >= auth.VOTE_RULES['scope_flags_per_user_per_day']:
-                    response_data['allowed'] = -3
-                elif not auth.can_flag_offensive(request.user):
-                    response_data['allowed'] = -2
-                elif post.flagged_items.filter(user=request.user).count() > 0:
-                    response_data['status'] = 1
-                else:
-                    item = FlaggedItem(user=request.user, content_object=post, flagged_at=datetime.datetime.now())
-                    auth.onFlaggedItem(item, post, request.user)
-                    response_data['count'] = post.offensive_flag_count
-                    # send signal when question or answer be marked offensive
-                    mark_offensive.send(sender=post.__class__, instance=post, mark_by=request.user)
-            elif vote_type in ['9', '10']:
-                post = question
-                post_id = id
-                if vote_type == '10':
-                    post_id = request.POST.get('postId')
-                    post = get_object_or_404(Answer, id=post_id)
-
-                if not auth.can_delete_post(request.user, post):
-                    response_data['allowed'] = -2
-                elif post.deleted == True:
-                    logging.debug('debug restoring post in view')
-                    auth.onDeleteCanceled(post, request.user)
-                    response_data['status'] = 1
-                else:
-                    auth.onDeleted(post, request.user)
-                    delete_post_or_answer.send(sender=post.__class__, instance=post, delete_by=request.user)
-            elif vote_type == '11':#subscribe q updates
-                user = request.user
-                if user.is_authenticated():
-                    if user not in question.followed_by.all():
-                        question.followed_by.add(user)
-                        if settings.EMAIL_VALIDATION == 'on' and user.email_isvalid == False:
-                            response_data['message'] = \
-                                    _('subscription saved, %(email)s needs validation, see %(details_url)s') \
-                                    % {'email':user.email,'details_url':reverse('faq') + '#validate'}
-                    feed_setting = EmailFeedSetting.objects.get(subscriber=user,feed_type='q_sel')
-                    if feed_setting.frequency == 'n':
-                        feed_setting.frequency = 'd'
-                        feed_setting.save()
-                        if 'message' in response_data:
-                            response_data['message'] += '<br/>'
-                        response_data['message'] = _('email update frequency has been set to daily')
-                    #response_data['status'] = 1
-                    #responst_data['allowed'] = 1
-                else:
-                    pass
-                    #response_data['status'] = 0
-                    #response_data['allowed'] = 0
-            elif vote_type == '12':#unsubscribe q updates
-                user = request.user
-                if user.is_authenticated():
-                    if user in question.followed_by.all():
-                        question.followed_by.remove(user)
+        favorite = FavoriteAction.objects.get(canceled=False, node=node, user=request.user)
+        favorite.cancel(ip=request.META['REMOTE_ADDR'])
+        added = False
+    except ObjectDoesNotExist:
+        FavoriteAction(node=node, user=request.user, ip=request.META['REMOTE_ADDR']).save()
+        added = True
+
+    return {
+    'commands': {
+    'update_favorite_count': [added and 1 or -1],
+    'update_favorite_mark': [added and 'on' or 'off']
+    }
+    }
+
+@decorate.withfn(command)
+def comment(request, id):
+    post = get_object_or_404(Node, id=id)
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('comment'))
+
+    if not request.method == 'POST':
+        raise CommandException(_("Invalid request"))
+
+    comment_text = request.POST.get('comment', '').strip()
+
+    if not len(comment_text):
+        raise CommandException(_("Comment is empty"))
+
+    if len(comment_text) < settings.FORM_MIN_COMMENT_BODY:
+        raise CommandException(_("At least %d characters required on comment body.") % settings.FORM_MIN_COMMENT_BODY)
+
+    if len(comment_text) > settings.FORM_MAX_COMMENT_BODY:
+        raise CommandException(_("No more than %d characters on comment body.") % settings.FORM_MAX_COMMENT_BODY)
+
+    if 'id' in request.POST:
+        comment = get_object_or_404(Comment, id=request.POST['id'])
+
+        if not user.can_edit_comment(comment):
+            raise NotEnoughRepPointsException( _('edit comments'))
+
+        comment = ReviseAction(user=user, node=comment, ip=request.META['REMOTE_ADDR']).save(
+                data=dict(text=comment_text)).node
+    else:
+        if not user.can_comment(post):
+            raise NotEnoughRepPointsException( _('comment'))
+
+        comment = CommentAction(user=user, ip=request.META['REMOTE_ADDR']).save(
+                data=dict(text=comment_text, parent=post)).node
+
+    if comment.active_revision.revision == 1:
+        return {
+        'commands': {
+        'insert_comment': [
+                id, comment.id, comment.comment, user.decorated_name, user.get_profile_url(),
+                reverse('delete_comment', kwargs={'id': comment.id}),
+                reverse('node_markdown', kwargs={'id': comment.id}),
+                reverse('convert_comment', kwargs={'id': comment.id}),
+                user.can_convert_comment_to_answer(comment),
+                bool(settings.SHOW_LATEST_COMMENTS_FIRST)
+                ]
+        }
+        }
+    else:
+        return {
+        'commands': {
+        'update_comment': [comment.id, comment.comment]
+        }
+        }
+
+@decorate.withfn(command)
+def node_markdown(request, id):
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('accept answers'))
+
+    node = get_object_or_404(Node, id=id)
+    return HttpResponse(node.active_revision.body, mimetype="text/plain")
+
+
+@decorate.withfn(command)
+def accept_answer(request, id):
+    if settings.DISABLE_ACCEPTING_FEATURE:
+        raise Http404()
+
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('accept answers'))
+
+    answer = get_object_or_404(Answer, id=id)
+    question = answer.question
+
+    if not user.can_accept_answer(answer):
+        raise CommandException(_("Sorry but you cannot accept the answer"))
+
+    commands = {}
+
+    if answer.nis.accepted:
+        answer.nstate.accepted.cancel(user, ip=request.META['REMOTE_ADDR'])
+        commands['unmark_accepted'] = [answer.id]
+    else:
+        if settings.MAXIMUM_ACCEPTED_ANSWERS and (question.accepted_count >= settings.MAXIMUM_ACCEPTED_ANSWERS):
+            raise CommandException(ungettext("This question already has an accepted answer.",
+                "Sorry but this question has reached the limit of accepted answers.", int(settings.MAXIMUM_ACCEPTED_ANSWERS)))
+
+        if settings.MAXIMUM_ACCEPTED_PER_USER and question.accepted_count:
+            accepted_from_author = question.accepted_answers.filter(author=answer.author).count()
+
+            if accepted_from_author >= settings.MAXIMUM_ACCEPTED_PER_USER:
+                raise CommandException(ungettext("The author of this answer already has an accepted answer in this question.",
+                "Sorry but the author of this answer has reached the limit of accepted answers per question.", int(settings.MAXIMUM_ACCEPTED_PER_USER)))             
+
+
+        AcceptAnswerAction(node=answer, user=user, ip=request.META['REMOTE_ADDR']).save()
+
+        # If the request is not an AJAX redirect to the answer URL rather than to the home page
+        if not request.is_ajax():
+            msg = _("""
+              Congratulations! You've accepted an answer.
+            """)
+
+            # Notify the user with a message that an answer has been accepted
+            messages.info(request, msg)
+
+            # Redirect URL should include additional get parameters that might have been attached
+            redirect_url = answer.parent.get_absolute_url() + "?accepted_answer=true&%s" % smart_unicode(urlencode(request.GET))
+
+            return HttpResponseRedirect(redirect_url)
+
+        commands['mark_accepted'] = [answer.id]
+
+    return {'commands': commands}
+
+@decorate.withfn(command)
+def delete_post(request, id):
+    post = get_object_or_404(Node, id=id)
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('delete posts'))
+
+    if not (user.can_delete_post(post)):
+        raise NotEnoughRepPointsException(_('delete posts'))
+
+    ret = {'commands': {}}
+
+    if post.nis.deleted:
+        post.nstate.deleted.cancel(user, ip=request.META['REMOTE_ADDR'])
+        ret['commands']['unmark_deleted'] = [post.node_type, id]
+    else:
+        DeleteAction(node=post, user=user, ip=request.META['REMOTE_ADDR']).save()
+
+        ret['commands']['mark_deleted'] = [post.node_type, id]
+
+    return ret
+
+@decorate.withfn(command)
+def close(request, id, close):
+    if close and not request.POST:
+        return render_to_response('node/report.html', {'types': settings.CLOSE_TYPES})
+
+    question = get_object_or_404(Question, id=id)
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('close questions'))
+
+    if question.nis.closed:
+        if not user.can_reopen_question(question):
+            raise NotEnoughRepPointsException(_('reopen questions'))
+
+        question.nstate.closed.cancel(user, ip=request.META['REMOTE_ADDR'])
+    else:
+        if not request.user.can_close_question(question):
+            raise NotEnoughRepPointsException(_('close questions'))
+
+        reason = request.POST.get('prompt', '').strip()
+
+        if not len(reason):
+            raise CommandException(_("Reason is empty"))
+
+        CloseAction(node=question, user=user, extra=reason, ip=request.META['REMOTE_ADDR']).save()
+
+    return RefreshPageCommand()
+
+@decorate.withfn(command)
+def wikify(request, id):
+    node = get_object_or_404(Node, id=id)
+    user = request.user
+
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('mark posts as community wiki'))
+
+    if node.nis.wiki:
+        if not user.can_cancel_wiki(node):
+            raise NotEnoughRepPointsException(_('cancel a community wiki post'))
+
+        if node.nstate.wiki.action_type == "wikify":
+            node.nstate.wiki.cancel()
         else:
-            response_data['success'] = 0
-            response_data['message'] = u'Request mode is not supported. Please try again.'
+            node.nstate.wiki = None
+    else:
+        if not user.can_wikify(node):
+            raise NotEnoughRepPointsException(_('mark posts as community wiki'))
+
+        WikifyAction(node=node, user=user, ip=request.META['REMOTE_ADDR']).save()
+
+    return RefreshPageCommand()
+
+@decorate.withfn(command)
+def convert_to_comment(request, id):
+    user = request.user
+    answer = get_object_or_404(Answer, id=id)
+    question = answer.question
+
+    # Check whether the user has the required permissions
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_("convert answers to comments"))
+
+    if not user.can_convert_to_comment(answer):
+        raise NotEnoughRepPointsException(_("convert answers to comments"))
+
+    if not request.POST:
+        description = lambda a: _("Answer by %(uname)s: %(snippet)s...") % {'uname': smart_unicode(a.author.username),
+                                                                            'snippet': a.summary[:10]}
+        nodes = [(question.id, _("Question"))]
+        [nodes.append((a.id, description(a))) for a in
+         question.answers.filter_state(deleted=False).exclude(id=answer.id)]
+
+        return render_to_response('node/convert_to_comment.html', {'answer': answer, 'nodes': nodes})
 
-        data = simplejson.dumps(response_data)
+    try:
+        new_parent = Node.objects.get(id=request.POST.get('under', None))
+    except:
+        raise CommandException(_("That is an invalid post to put the comment under"))
+
+    if not (new_parent == question or (new_parent.node_type == 'answer' and new_parent.parent == question)):
+        raise CommandException(_("That is an invalid post to put the comment under"))
+
+    AnswerToCommentAction(user=user, node=answer, ip=request.META['REMOTE_ADDR']).save(data=dict(new_parent=new_parent))
+
+    return RefreshPageCommand()
+
+@decorate.withfn(command)
+def convert_comment_to_answer(request, id):
+    user = request.user
+    comment = get_object_or_404(Comment, id=id)
+    parent = comment.parent
+
+    if not parent.question:
+        question = parent
+    else:
+        question = parent.question
+    
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_("convert comments to answers"))
+
+    if not user.can_convert_comment_to_answer(comment):
+        raise NotEnoughRepPointsException(_("convert comments to answers"))
+    
+    CommentToAnswerAction(user=user, node=comment, ip=request.META['REMOTE_ADDR']).save(data=dict(question=question))
+
+    return RefreshPageCommand()
 
-    except Exception, e:
-        response_data['message'] = str(e)
-        data = simplejson.dumps(response_data)
-    return HttpResponse(data, mimetype="application/json")
+@decorate.withfn(command)
+def subscribe(request, id, user=None):
+    if user:
+        try:
+            user = User.objects.get(id=user)
+        except User.DoesNotExist:
+            raise Http404()
+
+        if not (request.user.is_a_super_user_or_staff() or user.is_authenticated()):
+            raise CommandException(_("You do not have the correct credentials to preform this action."))
+    else:
+        user = request.user
+
+    question = get_object_or_404(Question, id=id)
+
+    try:
+        subscription = QuestionSubscription.objects.get(question=question, user=user)
+        subscription.delete()
+        subscribed = False
+    except:
+        subscription = QuestionSubscription(question=question, user=user, auto_subscription=False)
+        subscription.save()
+        subscribed = True
+
+    return {
+        'commands': {
+            'set_subscription_button': [subscribed and _('unsubscribe me') or _('subscribe me')],
+            'set_subscription_status': ['']
+        }
+    }
 
 #internally grouped views - used by the tagging system
 @ajax_login_required
@@ -264,72 +547,97 @@ def mark_tag(request, tag=None, **kwargs):#tagging system
                 pass
         else:
             ts.update(reason=reason)
-    return HttpResponse(simplejson.dumps(''), mimetype="application/json")
+    return HttpResponse(json.dumps(''), mimetype="application/json")
 
-@ajax_login_required
-def ajax_toggle_ignored_questions(request):#ajax tagging and tag-filtering system
-    if request.user.hide_ignored_questions:
-        new_hide_setting = False
-    else:
-        new_hide_setting = True
-    request.user.hide_ignored_questions = new_hide_setting
-    request.user.save()
-
-@ajax_method
-def ajax_command(request):#refactor? view processing ajax commands - note "vote" and view others do it too
-    if 'command' not in request.POST:
-        return HttpResponseForbidden(mimetype="application/json")
-    if request.POST['command'] == 'toggle-ignored-questions':
-        return ajax_toggle_ignored_questions(request)
-
-@login_required
-def close(request, id):#close question
-    """view to initiate and process 
-    question close
-    """
-    question = get_object_or_404(Question, id=id)
-    if not auth.can_close_question(request.user, question):
-        return HttpResponse('Permission denied.')
-    if request.method == 'POST':
-        form = CloseForm(request.POST)
-        if form.is_valid():
-            reason = form.cleaned_data['reason']
-            question.closed = True
-            question.closed_by = request.user
-            question.closed_at = datetime.datetime.now()
-            question.close_reason = reason
-            question.save()
-        return HttpResponseRedirect(question.get_absolute_url())
+def matching_tags(request):
+    if len(request.GET['q']) == 0:
+        raise CommandException(_("Invalid request"))
+
+    possible_tags = Tag.active.filter(name__icontains = request.GET['q'])
+    tag_output = ''
+    for tag in possible_tags:
+        tag_output += "%s|%s|%s\n" % (tag.id, tag.name, tag.used_count)
+
+    return HttpResponse(tag_output, mimetype="text/plain")
+
+def matching_users(request):
+    if len(request.GET['q']) == 0:
+        raise CommandException(_("Invalid request"))
+
+    possible_users = User.objects.filter(username__icontains = request.GET['q'])
+    output = ''
+
+    for user in possible_users:
+        output += ("%s|%s|%s\n" % (user.id, user.decorated_name, user.reputation))
+
+    return HttpResponse(output, mimetype="text/plain")
+
+def related_questions(request):
+    if request.POST and request.POST.get('title', None):
+        can_rank, questions = Question.objects.search(request.POST['title'])
+
+        if can_rank and isinstance(can_rank, basestring):
+            questions = questions.order_by(can_rank)
+
+        return HttpResponse(json.dumps(
+                [dict(title=q.title, url=q.get_absolute_url(), score=q.score, summary=q.summary)
+                 for q in questions.filter_state(deleted=False)[0:10]]), mimetype="application/json")
     else:
-        form = CloseForm()
-        return render_to_response('close.html', {
-            'form' : form,
-            'question' : question,
-            }, context_instance=RequestContext(request))
-
-@login_required
-def reopen(request, id):#re-open question
-    """view to initiate and process 
-    question close
-    """
-    question = get_object_or_404(Question, id=id)
-    # open question
-    if not auth.can_reopen_question(request.user, question):
-        return HttpResponse('Permission denied.')
-    if request.method == 'POST' :
-        Question.objects.filter(id=question.id).update(closed=False,
-            closed_by=None, closed_at=None, close_reason=None)
-        return HttpResponseRedirect(question.get_absolute_url())
+        raise Http404()
+
+@decorate.withfn(command)
+def answer_permanent_link(request, id):
+    # Getting the current answer object
+    answer = get_object_or_404(Answer, id=id)
+
+    # Getting the current object URL -- the Application URL + the object relative URL
+    url = '%s%s' % (settings.APP_BASE_URL, answer.get_absolute_url())
+
+    if not request.POST:
+        # Display the template
+        return render_to_response('node/permanent_link.html', { 'url' : url, })
+
+    return {
+        'commands' : {
+            'copy_url' : [request.POST['permanent_link_url'],],
+        },
+        'message' : _("The permanent URL to the answer has been copied to your clipboard."),
+    }
+
+@decorate.withfn(command)
+def award_points(request, user_id, answer_id):
+    user = request.user
+    awarded_user = get_object_or_404(User, id=user_id)
+    answer = get_object_or_404(Answer, id=answer_id)
+
+    # Users shouldn't be able to award themselves
+    if awarded_user.id == user.id:
+        raise CannotDoOnOwnException(_("award"))
+
+    # Anonymous users cannot award  points, they just don't have such
+    if not user.is_authenticated():
+        raise AnonymousNotAllowedException(_('award'))
+
+    if not request.POST:
+        return render_to_response("node/award_points.html", {
+            'user' : user,
+            'awarded_user' : awarded_user,
+            'reputation_to_comment' : str(settings.REP_TO_COMMENT)
+        })
     else:
-        return render_to_response('reopen.html', {
-            'question' : question,
-            }, context_instance=RequestContext(request))
-
-#osqa-user communication system
-def read_message(request):#marks message a read
-    if request.method == "POST":
-        if request.POST['formdata'] == 'required':
-            request.session['message_silent'] = 1
-            if request.user.is_authenticated():
-                request.user.delete_messages()
-    return HttpResponse('')
+        points = int(request.POST['points'])
+
+        # We should check if the user has enough reputation points, otherwise we raise an exception.
+        if points < 0:
+            raise CommandException(_("The number of points to award needs to be a positive value."))
+
+        if user.reputation < points:
+            raise NotEnoughRepPointsException(_("award"))
+
+        extra = dict(message=request.POST.get('message', ''), awarding_user=request.user.id, value=points)
+
+        # We take points from the awarding user
+        AwardPointsAction(user=request.user, node=answer, extra=extra).save(data=dict(value=points, affected=awarded_user))
+
+        return { 'message' : _("You have awarded %(awarded_user)s with %(points)d points") % {'awarded_user' : awarded_user, 'points' : points} }
+