X-Git-Url: https://git.openstreetmap.org./osqa.git/blobdiff_plain/1a949f7c97dc2f34c135f5cdf088df2927d3d652..174c53e97bcf1e5412c141829d152aa5a2b8684c:/forum/models/user.py

diff --git a/forum/models/user.py b/forum/models/user.py
index 655e17e..8837ef3 100644
--- a/forum/models/user.py
+++ b/forum/models/user.py
@@ -1,376 +1,410 @@
-from base import *
-from forum import const
-from django.contrib.contenttypes.models import ContentType
-from django.contrib.auth.models import User as DjangoUser, AnonymousUser as DjangoAnonymousUser
-from django.db.models import Q
-from hashlib import md5
-import string
-from random import Random
-
-from django.utils.translation import ugettext as _
-import django.dispatch
-
-
-QUESTIONS_PER_PAGE_CHOICES = (
-   (10, u'10'),
-   (30, u'30'),
-   (50, u'50'),
-)
-
-class UserManager(CachedManager):
-    def get_site_owner(self):
-        return self.all().order_by('date_joined')[0]
-
-class AnonymousUser(DjangoAnonymousUser):
-    def get_visible_answers(self, question):
-        return question.answers.filter(deleted=False)
-
-    def can_view_deleted_post(self, post):
-        return False
-
-    def can_vote_up(self):
-        return False
-
-    def can_vote_down(self):
-        return False
-
-    def can_flag_offensive(self, post=None):
-        return False
-
-    def can_view_offensive_flags(self, post=None):
-        return False
-
-    def can_comment(self, post):
-        return False
-
-    def can_like_comment(self, comment):
-        return False
-
-    def can_edit_comment(self, comment):
-        return False
-
-    def can_delete_comment(self, comment):
-        return False
-
-    def can_accept_answer(self, answer):
-        return False
-
-    def can_edit_post(self, post):
-        return False
-
-    def can_retag_questions(self):
-        return False
-
-    def can_close_question(self, question):
-        return False
-
-    def can_reopen_question(self, question):
-        return False
-
-    def can_delete_post(self, post):
-        return False
-
-    def can_upload_files(self):
-        return False
-
-class User(BaseModel, DjangoUser):
-    is_approved = models.BooleanField(default=False)
-    email_isvalid = models.BooleanField(default=False)
-    email_key = models.CharField(max_length=32, null=True)
-    reputation = models.PositiveIntegerField(default=1)
-
-    gold = models.SmallIntegerField(default=0)
-    silver = models.SmallIntegerField(default=0)
-    bronze = models.SmallIntegerField(default=0)
-
-    questions_per_page = models.SmallIntegerField(choices=QUESTIONS_PER_PAGE_CHOICES, default=10)
-    hide_ignored_questions = models.BooleanField(default=False)
-    
-    last_seen = models.DateTimeField(default=datetime.datetime.now)
-    real_name = models.CharField(max_length=100, blank=True)
-    website = models.URLField(max_length=200, blank=True)
-    location = models.CharField(max_length=100, blank=True)
-    date_of_birth = models.DateField(null=True, blank=True)
-    about = models.TextField(blank=True)
-    
-    objects = UserManager()
-
-    @property
-    def gravatar(self):
-        return hashlib.md5(self.email).hexdigest()
-
-    def save(self, *args, **kwargs):
-        if self.reputation < 0:
-            self.reputation = 1
-
-        super(User, self).save(*args, **kwargs)
-
-    def get_absolute_url(self):
-        return self.get_profile_url()
-
-    def get_messages(self):
-        messages = []
-        for m in self.message_set.all():
-            messages.append(m.message)
-        return messages
-
-    def delete_messages(self):
-        self.message_set.all().delete()
-
-    def get_profile_url(self):
-        """Returns the URL for this User's profile."""
-        return "/%s%d/%s" % (_('users/'), self.id, slugify(self.username))
-
-    def get_profile_link(self):
-        profile_link = u'<a href="%s">%s</a>' % (self.get_profile_url(),self.username)
-        logging.debug('in get profile link %s' % profile_link)
-        return mark_safe(profile_link)
-
-    def get_vote_count_today(self):
-        today = datetime.date.today()
-        return self.votes.filter(voted_at__range=(today - datetime.timedelta(days=1), today)).count()
-
-    def get_up_vote_count(self):
-        return self.votes.filter(vote=1).count()
-
-    def get_down_vote_count(self):
-        return self.votes.filter(vote=-1).count()
-
-    def get_reputation_by_upvoted_today(self):
-        today = datetime.datetime.now()
-        sum = self.reputes.filter(
-                models.Q(reputation_type=TYPE_REPUTATION_GAIN_BY_UPVOTED) |
-                models.Q(reputation_type=TYPE_REPUTATION_LOST_BY_UPVOTE_CANCELED),
-                reputed_at__range=(today - datetime.timedelta(days=1), today)).aggregate(models.Sum('value'))
-
-        if sum.get('value__sum', None) is not None: return sum['value__sum']
-        return 0
-
-    def get_flagged_items_count_today(self):
-        today = datetime.date.today()
-        return self.flaggeditems.filter(flagged_at__range=(today - datetime.timedelta(days=1), today)).count()
-
-    def get_visible_answers(self, question):
-        if self.is_superuser:
-            return question.answers
-        else:
-            return question.answers.filter(models.Q(deleted=False) | models.Q(deleted_by=self))
-
-    def can_view_deleted_post(self, post):
-        return self.is_superuser or post.author == self
-
-    def can_vote_up(self):
-        return self.reputation >= int(settings.REP_TO_VOTE_UP) or self.is_superuser
-
-    def can_vote_down(self):
-        return self.reputation >= int(settings.REP_TO_VOTE_DOWN) or self.is_superuser
-
-    def can_flag_offensive(self, post=None):
-        if post is not None and post.author == self:
-            return False
-        return self.is_superuser or self.reputation >= int(settings.REP_TO_FLAG)
-
-    def can_view_offensive_flags(self, post=None):
-        if post is not None and post.author == self:
-            return True
-        return self.is_superuser or self.reputation >= int(settings.REP_TO_VIEW_FLAGS)
-
-    def can_comment(self, post):
-        return self == post.author or self.reputation >= int(settings.REP_TO_COMMENT
-        ) or self.is_superuser or (post.__class__.__name__ == "Answer" and self == post.question.author)
-
-    def can_like_comment(self, comment):
-        return self != comment.user and (self.reputation >= int(settings.REP_TO_LIKE_COMMENT) or self.is_superuser)
-
-    def can_edit_comment(self, comment):
-        return (comment.user == self and comment.added_at >= datetime.datetime.now() - datetime.timedelta(minutes=60)
-        ) or self.is_superuser
-
-    def can_delete_comment(self, comment):
-        return self == comment.user or self.reputation >= int(settings.REP_TO_DELETE_COMMENTS) or self.is_superuser
-
-    def can_accept_answer(self, answer):
-        return self.is_superuser or self == answer.question.author
-
-    def can_edit_post(self, post):
-        return self.is_superuser or self == post.author or self.reputation >= int(settings.REP_TO_EDIT_OTHERS
-        ) or (post.wiki and self.reputation >= int(settings.REP_TO_EDIT_WIKI))
-
-    def can_retag_questions(self):
-        return self.reputation >= int(settings.REP_TO_RETAG)
-
-    def can_close_question(self, question):
-        return self.is_superuser or (self == question.author and self.reputation >= int(settings.REP_TO_CLOSE_OWN)
-        ) or self.reputation >= int(settings.REP_TO_CLOSE_OTHERS)
-
-    def can_reopen_question(self, question):
-        return self.is_superuser or (self == question.author and self.reputation >= settings.REP_TO_REOPEN_OWN)
-
-    def can_delete_post(self, post):
-        return self.is_superuser or (self == post.author and (post.__class__.__name__ == "Answer" or
-        not post.answers.filter(~Q(author=self)).count()))
-
-    def can_upload_files(self):
-        return self.is_superuser or self.reputation >= int(settings.REP_TO_UPLOAD)
-
-    class Meta:
-        app_label = 'forum'
-
-class Activity(MetaContent):
-    """
-    We keep some history data for user activities
-    """
-    user = models.ForeignKey(User)
-    activity_type = models.SmallIntegerField(choices=TYPE_ACTIVITY)
-    active_at = models.DateTimeField(default=datetime.datetime.now)
-    is_auditted    = models.BooleanField(default=False)
-
-    class Meta:
-        app_label = 'forum'
-        db_table = u'activity'
-
-    def __unicode__(self):
-        return u'[%s] was active at %s' % (self.user.username, self.active_at)
-
-    def save(self, *args, **kwargs):
-        super(Activity, self).save(*args, **kwargs)
-        if self._is_new:
-            activity_record.send(sender=self.activity_type, instance=self)
-
-    @property
-    def question(self):
-        if self.activity_type == const.TYPE_ACTIVITY_ASK_QUESTION:
-            return self.content_object
-        elif self.activity_type in (const.TYPE_ACTIVITY_ANSWER,
-                const.TYPE_ACTIVITY_MARK_ANSWER, const.TYPE_ACTIVITY_UPDATE_QUESTION):
-            return self.content_object.question
-        elif self.activity_type == const.TYPE_ACTIVITY_COMMENT_QUESTION:
-            return self.content_object.content_object
-        elif self.activity_type == const.TYPE_ACTIVITY_COMMENT_ANSWER:
-            return self.content_object.content_object.question
-        elif self.activity_type == const.TYPE_ACTIVITY_UPDATE_ANSWER:
-            return self.content_object.content_object.answer.question
-        else:
-            raise NotImplementedError()
-
-    @property
-    def type_as_string(self):
-        if self.activity_type == const.TYPE_ACTIVITY_ASK_QUESTION:
-            return _("asked")
-        elif self.activity_type  == const.TYPE_ACTIVITY_ANSWER:
-            return _("answered")
-        elif self.activity_type  == const.TYPE_ACTIVITY_MARK_ANSWER:
-            return _("marked an answer")
-        elif self.activity_type  == const.TYPE_ACTIVITY_UPDATE_QUESTION:
-            return _("edited")
-        elif self.activity_type == const.TYPE_ACTIVITY_COMMENT_QUESTION:
-            return _("commented")
-        elif self.activity_type == const.TYPE_ACTIVITY_COMMENT_ANSWER:
-            return _("commented an answer")
-        elif self.activity_type == const.TYPE_ACTIVITY_UPDATE_ANSWER:
-            return _("edited an answer")
-        else:
-            raise NotImplementedError()
-
-
-activity_record = django.dispatch.Signal(providing_args=['instance'])
-
-class SubscriptionSettings(models.Model):
-    user = models.OneToOneField(User, related_name='subscription_settings')
-
-    enable_notifications = models.BooleanField(default=True)
-
-    #notify if
-    member_joins = models.CharField(max_length=1, default='n', choices=const.NOTIFICATION_CHOICES)
-    new_question = models.CharField(max_length=1, default='d', choices=const.NOTIFICATION_CHOICES)
-    new_question_watched_tags = models.CharField(max_length=1, default='i', choices=const.NOTIFICATION_CHOICES)
-    subscribed_questions = models.CharField(max_length=1, default='i', choices=const.NOTIFICATION_CHOICES)
-    
-    #auto_subscribe_to
-    all_questions = models.BooleanField(default=False)
-    all_questions_watched_tags = models.BooleanField(default=False)
-    questions_asked = models.BooleanField(default=True)
-    questions_answered = models.BooleanField(default=True)
-    questions_commented = models.BooleanField(default=False)
-    questions_viewed = models.BooleanField(default=False)
-
-    #notify activity on subscribed
-    notify_answers = models.BooleanField(default=True)
-    notify_reply_to_comments = models.BooleanField(default=True)
-    notify_comments_own_post = models.BooleanField(default=True)
-    notify_comments = models.BooleanField(default=False)
-    notify_accepted = models.BooleanField(default=False)
-
-    class Meta:
-        app_label = 'forum'
-
-from forum.utils.time import one_day_from_now
-
-class ValidationHashManager(models.Manager):
-    def _generate_md5_hash(self, user, type, hash_data, seed):
-        return md5("%s%s%s%s" % (seed, "".join(map(str, hash_data)), user.id, type)).hexdigest()
-
-    def create_new(self, user, type, hash_data=[], expiration=None):
-        seed = ''.join(Random().sample(string.letters+string.digits, 12))
-        hash = self._generate_md5_hash(user, type, hash_data, seed)
-
-        obj = ValidationHash(hash_code=hash, seed=seed, user=user, type=type)
-
-        if expiration is not None:
-            obj.expiration = expiration
-
-        try:
-            obj.save()
-        except:
-            return None
-            
-        return obj
-
-    def validate(self, hash, user, type, hash_data=[]):
-        try:
-            obj = self.get(hash_code=hash)
-        except:
-            return False
-
-        if obj.type != type:
-            return False
-
-        if obj.user != user:
-            return False
-
-        valid = (obj.hash_code == self._generate_md5_hash(obj.user, type, hash_data, obj.seed))
-
-        if valid:
-            if obj.expiration < datetime.datetime.now():
-                obj.delete()
-                return False
-            else:
-                obj.delete()
-                return True
-
-        return False
-
-class ValidationHash(models.Model):
-    hash_code = models.CharField(max_length=255,unique=True)
-    seed = models.CharField(max_length=12)
-    expiration = models.DateTimeField(default=one_day_from_now)
-    type = models.CharField(max_length=12)
-    user = models.ForeignKey(User)
-
-    objects = ValidationHashManager()
-
-    class Meta:
-        unique_together = ('user', 'type')
-        app_label = 'forum'
-
-    def __str__(self):
-        return self.hash_code
-
-class AuthKeyUserAssociation(models.Model):
-    key = models.CharField(max_length=255,null=False,unique=True)
-    provider = models.CharField(max_length=64)
-    user = models.ForeignKey(User, related_name="auth_keys")
-    added_at = models.DateTimeField(default=datetime.datetime.now)
-
-    class Meta:
-        app_label = 'forum'
+from base import *
+from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
+from django.contrib.contenttypes.models import ContentType
+from django.contrib.auth.models import User as DjangoUser, AnonymousUser as DjangoAnonymousUser
+from django.db.models import Q
+try:
+    from hashlib import md5
+except:
+    from md5 import new as md5
+
+import string
+from random import Random
+
+from django.utils.translation import ugettext as _
+import logging
+
+QUESTIONS_PER_PAGE_CHOICES = (
+(10, u'10'),
+(30, u'30'),
+(50, u'50'),
+)
+
+class UserManager(CachedManager):
+    def get_site_owner(self):
+        return self.all().order_by('date_joined')[0]
+
+class AnonymousUser(DjangoAnonymousUser):
+    def get_visible_answers(self, question):
+        return question.answers.filter_state(deleted=False)
+
+    def can_view_deleted_post(self, post):
+        return False
+
+    def can_vote_up(self):
+        return False
+
+    def can_vote_down(self):
+        return False
+
+    def can_flag_offensive(self, post=None):
+        return False
+
+    def can_view_offensive_flags(self, post=None):
+        return False
+
+    def can_comment(self, post):
+        return False
+
+    def can_like_comment(self, comment):
+        return False
+
+    def can_edit_comment(self, comment):
+        return False
+
+    def can_delete_comment(self, comment):
+        return False
+
+    def can_convert_to_comment(self, answer):
+        return False
+
+    def can_accept_answer(self, answer):
+        return False
+
+    def can_create_tags(self):
+        return False
+
+    def can_edit_post(self, post):
+        return False
+
+    def can_wikify(self, post):
+        return False
+
+    def can_cancel_wiki(self, post):
+        return False
+
+    def can_retag_questions(self):
+        return False
+
+    def can_close_question(self, question):
+        return False
+
+    def can_reopen_question(self, question):
+        return False
+
+    def can_delete_post(self, post):
+        return False
+
+    def can_upload_files(self):
+        return False
+
+def true_if_is_super_or_staff(fn):
+    def decorated(self, *args, **kwargs):
+        return self.is_superuser or self.is_staff or fn(self, *args, **kwargs)
+
+    return decorated
+
+class User(BaseModel, DjangoUser):
+    is_approved = models.BooleanField(default=False)
+    email_isvalid = models.BooleanField(default=False)
+
+    reputation = models.PositiveIntegerField(default=0)
+    gold = models.PositiveIntegerField(default=0)
+    silver = models.PositiveIntegerField(default=0)
+    bronze = models.PositiveIntegerField(default=0)
+
+    last_seen = models.DateTimeField(default=datetime.datetime.now)
+    real_name = models.CharField(max_length=100, blank=True)
+    website = models.URLField(max_length=200, blank=True)
+    location = models.CharField(max_length=100, blank=True)
+    date_of_birth = models.DateField(null=True, blank=True)
+    about = models.TextField(blank=True)
+
+    subscriptions = models.ManyToManyField('Node', related_name='subscribers', through='QuestionSubscription')
+
+    vote_up_count = DenormalizedField("actions", canceled=False, action_type="voteup")
+    vote_down_count = DenormalizedField("actions", canceled=False, action_type="votedown")
+
+    objects = UserManager()
+
+    def __unicode__(self):
+        return self.username
+
+    @property
+    def gravatar(self):
+        return md5(self.email).hexdigest()
+
+    def save(self, *args, **kwargs):
+        if self.reputation < 0:
+            self.reputation = 0
+
+        new = not bool(self.id)
+
+        super(User, self).save(*args, **kwargs)
+
+        if new:
+            sub_settings = SubscriptionSettings(user=self)
+            sub_settings.save()
+
+    def get_absolute_url(self):
+        return self.get_profile_url()
+
+    def get_messages(self):
+        messages = []
+        for m in self.message_set.all():
+            messages.append(m.message)
+        return messages
+
+    def delete_messages(self):
+        self.message_set.all().delete()
+
+    @models.permalink
+    def get_profile_url(self):
+        return ('user_profile', (), {'id': self.id, 'slug': slugify(self.username)})
+
+    def get_absolute_url(self):
+        return self.get_profile_url()
+
+    def get_profile_link(self):
+        profile_link = u'<a href="%s">%s</a>' % (self.get_profile_url(), self.username)
+        return mark_safe(profile_link)
+
+    def get_visible_answers(self, question):
+        return question.answers.filter_state(deleted=False)
+
+    def get_vote_count_today(self):
+        today = datetime.date.today()
+        return self.actions.filter(canceled=False, action_type__in=("voteup", "votedown"),
+                                   action_date__gte=(today - datetime.timedelta(days=1))).count()
+
+    def get_reputation_by_upvoted_today(self):
+        today = datetime.datetime.now()
+        sum = self.reputes.filter(reputed_at__range=(today - datetime.timedelta(days=1), today)).aggregate(
+                models.Sum('value'))
+        #todo: redo this, maybe transform in the daily cap
+        #if sum.get('value__sum', None) is not None: return sum['value__sum']
+        return 0
+
+    def get_flagged_items_count_today(self):
+        today = datetime.date.today()
+        return self.actions.filter(canceled=False, action_type="flag",
+                                   action_date__gte=(today - datetime.timedelta(days=1))).count()
+
+    @true_if_is_super_or_staff
+    def can_view_deleted_post(self, post):
+        return post.author == self
+
+    @true_if_is_super_or_staff
+    def can_vote_up(self):
+        return self.reputation >= int(settings.REP_TO_VOTE_UP)
+
+    @true_if_is_super_or_staff
+    def can_vote_down(self):
+        return self.reputation >= int(settings.REP_TO_VOTE_DOWN)
+
+    def can_flag_offensive(self, post=None):
+        if post is not None and post.author == self:
+            return False
+        return self.is_superuser or self.is_staff or self.reputation >= int(settings.REP_TO_FLAG)
+
+    @true_if_is_super_or_staff
+    def can_view_offensive_flags(self, post=None):
+        if post is not None and post.author == self:
+            return True
+        return self.reputation >= int(settings.REP_TO_VIEW_FLAGS)
+
+    @true_if_is_super_or_staff
+    def can_comment(self, post):
+        return self == post.author or self.reputation >= int(settings.REP_TO_COMMENT
+                                                             ) or (post.__class__.__name__ == "Answer" and self == post.question.author)
+
+    @true_if_is_super_or_staff
+    def can_like_comment(self, comment):
+        return self != comment.author and (self.reputation >= int(settings.REP_TO_LIKE_COMMENT))
+
+    @true_if_is_super_or_staff
+    def can_edit_comment(self, comment):
+        return (comment.author == self and comment.added_at >= datetime.datetime.now() - datetime.timedelta(minutes=60)
+        ) or self.is_superuser
+
+    @true_if_is_super_or_staff
+    def can_delete_comment(self, comment):
+        return self == comment.author or self.reputation >= int(settings.REP_TO_DELETE_COMMENTS)
+
+    def can_convert_to_comment(self, answer):
+        return (not answer.marked) and (self.is_superuser or self.is_staff or answer.author == self or self.reputation >= int
+                (settings.REP_TO_CONVERT_TO_COMMENT))
+
+    @true_if_is_super_or_staff
+    def can_accept_answer(self, answer):
+        return self == answer.question.author
+
+    @true_if_is_super_or_staff
+    def can_create_tags(self):
+        return self.reputation >= int(settings.REP_TO_CREATE_TAGS)
+
+    @true_if_is_super_or_staff
+    def can_edit_post(self, post):
+        return self == post.author or self.reputation >= int(settings.REP_TO_EDIT_OTHERS
+                                                             ) or (post.nis.wiki and self.reputation >= int(
+                settings.REP_TO_EDIT_WIKI))
+
+    @true_if_is_super_or_staff
+    def can_wikify(self, post):
+        return self == post.author or self.reputation >= int(settings.REP_TO_WIKIFY)
+
+    @true_if_is_super_or_staff
+    def can_cancel_wiki(self, post):
+        return self == post.author
+
+    @true_if_is_super_or_staff
+    def can_retag_questions(self):
+        return self.reputation >= int(settings.REP_TO_RETAG)
+
+    @true_if_is_super_or_staff
+    def can_close_question(self, question):
+        return (self == question.author and self.reputation >= int(settings.REP_TO_CLOSE_OWN)
+        ) or self.reputation >= int(settings.REP_TO_CLOSE_OTHERS)
+
+    @true_if_is_super_or_staff
+    def can_reopen_question(self, question):
+        return self == question.author and self.reputation >= settings.REP_TO_REOPEN_OWN
+
+    @true_if_is_super_or_staff
+    def can_delete_post(self, post):
+        if post.node_type == "comment":
+            return self.can_delete_comment(post)
+
+        return (self == post.author and (post.__class__.__name__ == "Answer" or
+        not post.answers.exclude(author=self).count()))
+
+    @true_if_is_super_or_staff
+    def can_upload_files(self):
+        return self.reputation >= int(settings.REP_TO_UPLOAD)
+
+    def check_password(self, old_passwd):
+        self.__dict__.update(self.__class__.objects.filter(id=self.id).values('password')[0])
+        return DjangoUser.check_password(self, old_passwd)
+
+    @property
+    def suspension(self):
+        if self.__dict__.get('_suspension_dencache_', False) != None:
+            try:
+                self.__dict__['_suspension_dencache_'] = self.actions.get(action_type="suspend", canceled=False)
+            except ObjectDoesNotExist:
+                self.__dict__['_suspension_dencache_'] = None
+            except MultipleObjectsReturned:
+                logging.error("Multiple suspension actions found for user %s (%s)" % (self.username, self.id))
+                self.__dict__['_suspension_dencache_'] = self.actions.filter(action_type="suspend", canceled=False
+                                                                             ).order_by('-action_date')[0]
+
+        return self.__dict__['_suspension_dencache_']
+
+    def _pop_suspension_cache(self):
+        self.__dict__.pop('_suspension_dencache_', None)
+
+    def is_suspended(self):
+        if not self.is_active:
+            suspension = self.suspension
+
+            if suspension and suspension.extra.get('bantype', None) == 'forxdays' and (
+            datetime.datetime.now() > suspension.action_date + datetime.timedelta(
+                    days=int(suspension.extra.get('forxdays', 365)))):
+                suspension.cancel()
+            else:
+                return True
+
+        return False
+
+    class Meta:
+        app_label = 'forum'
+
+class SubscriptionSettings(models.Model):
+    user = models.OneToOneField(User, related_name='subscription_settings')
+
+    enable_notifications = models.BooleanField(default=True)
+
+    #notify if
+    member_joins = models.CharField(max_length=1, default='n')
+    new_question = models.CharField(max_length=1, default='d')
+    new_question_watched_tags = models.CharField(max_length=1, default='i')
+    subscribed_questions = models.CharField(max_length=1, default='i')
+
+    #auto_subscribe_to
+    all_questions = models.BooleanField(default=False)
+    all_questions_watched_tags = models.BooleanField(default=False)
+    questions_asked = models.BooleanField(default=True)
+    questions_answered = models.BooleanField(default=True)
+    questions_commented = models.BooleanField(default=False)
+    questions_viewed = models.BooleanField(default=False)
+
+    #notify activity on subscribed
+    notify_answers = models.BooleanField(default=True)
+    notify_reply_to_comments = models.BooleanField(default=True)
+    notify_comments_own_post = models.BooleanField(default=True)
+    notify_comments = models.BooleanField(default=False)
+    notify_accepted = models.BooleanField(default=False)
+
+    class Meta:
+        app_label = 'forum'
+
+from forum.utils.time import one_day_from_now
+
+class ValidationHashManager(models.Manager):
+    def _generate_md5_hash(self, user, type, hash_data, seed):
+        return md5("%s%s%s%s" % (seed, "".join(map(str, hash_data)), user.id, type)).hexdigest()
+
+    def create_new(self, user, type, hash_data=[], expiration=None):
+        seed = ''.join(Random().sample(string.letters+string.digits, 12))
+        hash = self._generate_md5_hash(user, type, hash_data, seed)
+
+        obj = ValidationHash(hash_code=hash, seed=seed, user=user, type=type)
+
+        if expiration is not None:
+            obj.expiration = expiration
+
+        try:
+            obj.save()
+        except:
+            return None
+
+        return obj
+
+    def validate(self, hash, user, type, hash_data=[]):
+        try:
+            obj = self.get(hash_code=hash)
+        except:
+            return False
+
+        if obj.type != type:
+            return False
+
+        if obj.user != user:
+            return False
+
+        valid = (obj.hash_code == self._generate_md5_hash(obj.user, type, hash_data, obj.seed))
+
+        if valid:
+            if obj.expiration < datetime.datetime.now():
+                obj.delete()
+                return False
+            else:
+                obj.delete()
+                return True
+
+        return False
+
+class ValidationHash(models.Model):
+    hash_code = models.CharField(max_length=255, unique=True)
+    seed = models.CharField(max_length=12)
+    expiration = models.DateTimeField(default=one_day_from_now)
+    type = models.CharField(max_length=12)
+    user = models.ForeignKey(User)
+
+    objects = ValidationHashManager()
+
+    class Meta:
+        unique_together = ('user', 'type')
+        app_label = 'forum'
+
+    def __str__(self):
+        return self.hash_code
+
+class AuthKeyUserAssociation(models.Model):
+    key = models.CharField(max_length=255, null=False, unique=True)
+    provider = models.CharField(max_length=64)
+    user = models.ForeignKey(User, related_name="auth_keys")
+    added_at = models.DateTimeField(default=datetime.datetime.now)
+
+    class Meta:
+        app_label = 'forum'