forum/models/user.py

   1 from base import *
   2 from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
   3 from django.contrib.contenttypes.models import ContentType
   4 from django.contrib.auth.models import User as DjangoUser, AnonymousUser as DjangoAnonymousUser
   5 from django.db.models import Q
   6 try:
   7     from hashlib import md5
   8 except:
   9     from md5 import new as md5
  10
  11 import string
  12 from random import Random
  13
  14 from django.utils.translation import ugettext as _
  15 import logging
  16
  17 QUESTIONS_PER_PAGE_CHOICES = (
  18 (10, u'10'),
  19 (30, u'30'),
  20 (50, u'50'),
  21 )
  22
  23 class AnonymousUser(DjangoAnonymousUser):
  24     def get_visible_answers(self, question):
  25         return question.answers.filter_state(deleted=False)
  26
  27     def can_view_deleted_post(self, post):
  28         return False
  29
  30     def can_vote_up(self):
  31         return False
  32
  33     def can_vote_down(self):
  34         return False
  35
  36     def can_flag_offensive(self, post=None):
  37         return False
  38
  39     def can_view_offensive_flags(self, post=None):
  40         return False
  41
  42     def can_comment(self, post):
  43         return False
  44
  45     def can_like_comment(self, comment):
  46         return False
  47
  48     def can_edit_comment(self, comment):
  49         return False
  50
  51     def can_delete_comment(self, comment):
  52         return False
  53
  54     def can_convert_to_comment(self, answer):
  55         return False
  56
  57     def can_accept_answer(self, answer):
  58         return False
  59
  60     def can_create_tags(self):
  61         return False
  62
  63     def can_edit_post(self, post):
  64         return False
  65
  66     def can_wikify(self, post):
  67         return False
  68
  69     def can_cancel_wiki(self, post):
  70         return False
  71
  72     def can_retag_questions(self):
  73         return False
  74
  75     def can_close_question(self, question):
  76         return False
  77
  78     def can_reopen_question(self, question):
  79         return False
  80
  81     def can_delete_post(self, post):
  82         return False
  83
  84     def can_upload_files(self):
  85         return False
  86
  87 def true_if_is_super_or_staff(fn):
  88     def decorated(self, *args, **kwargs):
  89         return self.is_superuser or self.is_staff or fn(self, *args, **kwargs)
  90
  91     return decorated
  92
  93 class User(BaseModel, DjangoUser):
  94     is_approved = models.BooleanField(default=False)
  95     email_isvalid = models.BooleanField(default=False)
  96
  97     reputation = models.PositiveIntegerField(default=0)
  98     gold = models.PositiveIntegerField(default=0)
  99     silver = models.PositiveIntegerField(default=0)
 100     bronze = models.PositiveIntegerField(default=0)
 101
 102     last_seen = models.DateTimeField(default=datetime.datetime.now)
 103     real_name = models.CharField(max_length=100, blank=True)
 104     website = models.URLField(max_length=200, blank=True)
 105     location = models.CharField(max_length=100, blank=True)
 106     date_of_birth = models.DateField(null=True, blank=True)
 107     about = models.TextField(blank=True)
 108
 109     subscriptions = models.ManyToManyField('Node', related_name='subscribers', through='QuestionSubscription')
 110
 111     vote_up_count = DenormalizedField("actions", canceled=False, action_type="voteup")
 112     vote_down_count = DenormalizedField("actions", canceled=False, action_type="votedown")
 113
 114     def __unicode__(self):
 115         return self.username
 116
 117     @property
 118     def is_siteowner(self):
 119         #temporary thing, for now lets just assume that the site owner will always be the first user of the application
 120         return self.id == 1
 121
 122     @property
 123     def gravatar(self):
 124         return md5(self.email).hexdigest()
 125
 126     def save(self, *args, **kwargs):
 127         if self.reputation < 0:
 128             self.reputation = 0
 129
 130         new = not bool(self.id)
 131
 132         super(User, self).save(*args, **kwargs)
 133
 134         if new:
 135             sub_settings = SubscriptionSettings(user=self)
 136             sub_settings.save()
 137
 138     def get_absolute_url(self):
 139         return self.get_profile_url()
 140
 141     def get_messages(self):
 142         messages = []
 143         for m in self.message_set.all():
 144             messages.append(m.message)
 145         return messages
 146
 147     def delete_messages(self):
 148         self.message_set.all().delete()
 149
 150     @models.permalink
 151     def get_profile_url(self):
 152         return ('user_profile', (), {'id': self.id, 'slug': slugify(self.username)})
 153
 154     def get_absolute_url(self):
 155         return self.get_profile_url()
 156
 157     def get_profile_link(self):
 158         profile_link = u'<a href="%s">%s</a>' % (self.get_profile_url(), self.username)
 159         return mark_safe(profile_link)
 160
 161     def get_visible_answers(self, question):
 162         return question.answers.filter_state(deleted=False)
 163
 164     def get_vote_count_today(self):
 165         today = datetime.date.today()
 166         return self.actions.filter(canceled=False, action_type__in=("voteup", "votedown"),
 167                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 168
 169     def get_reputation_by_upvoted_today(self):
 170         today = datetime.datetime.now()
 171         sum = self.reputes.filter(reputed_at__range=(today - datetime.timedelta(days=1), today)).aggregate(
 172                 models.Sum('value'))
 173         #todo: redo this, maybe transform in the daily cap
 174         #if sum.get('value__sum', None) is not None: return sum['value__sum']
 175         return 0
 176
 177     def get_flagged_items_count_today(self):
 178         today = datetime.date.today()
 179         return self.actions.filter(canceled=False, action_type="flag",
 180                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 181
 182     @true_if_is_super_or_staff
 183     def can_view_deleted_post(self, post):
 184         return post.author == self
 185
 186     @true_if_is_super_or_staff
 187     def can_vote_up(self):
 188         return self.reputation >= int(settings.REP_TO_VOTE_UP)
 189
 190     @true_if_is_super_or_staff
 191     def can_vote_down(self):
 192         return self.reputation >= int(settings.REP_TO_VOTE_DOWN)
 193
 194     def can_flag_offensive(self, post=None):
 195         if post is not None and post.author == self:
 196             return False
 197         return self.is_superuser or self.is_staff or self.reputation >= int(settings.REP_TO_FLAG)
 198
 199     @true_if_is_super_or_staff
 200     def can_view_offensive_flags(self, post=None):
 201         if post is not None and post.author == self:
 202             return True
 203         return self.reputation >= int(settings.REP_TO_VIEW_FLAGS)
 204
 205     @true_if_is_super_or_staff
 206     def can_comment(self, post):
 207         return self == post.author or self.reputation >= int(settings.REP_TO_COMMENT
 208                                                              ) or (post.__class__.__name__ == "Answer" and self == post.question.author)
 209
 210     @true_if_is_super_or_staff
 211     def can_like_comment(self, comment):
 212         return self != comment.author and (self.reputation >= int(settings.REP_TO_LIKE_COMMENT))
 213
 214     @true_if_is_super_or_staff
 215     def can_edit_comment(self, comment):
 216         return (comment.author == self and comment.added_at >= datetime.datetime.now() - datetime.timedelta(minutes=60)
 217         ) or self.is_superuser
 218
 219     @true_if_is_super_or_staff
 220     def can_delete_comment(self, comment):
 221         return self == comment.author or self.reputation >= int(settings.REP_TO_DELETE_COMMENTS)
 222
 223     def can_convert_to_comment(self, answer):
 224         return (not answer.marked) and (self.is_superuser or self.is_staff or answer.author == self or self.reputation >= int
 225                 (settings.REP_TO_CONVERT_TO_COMMENT))
 226
 227     @true_if_is_super_or_staff
 228     def can_accept_answer(self, answer):
 229         return self == answer.question.author
 230
 231     @true_if_is_super_or_staff
 232     def can_create_tags(self):
 233         return self.reputation >= int(settings.REP_TO_CREATE_TAGS)
 234
 235     @true_if_is_super_or_staff
 236     def can_edit_post(self, post):
 237         return self == post.author or self.reputation >= int(settings.REP_TO_EDIT_OTHERS
 238                                                              ) or (post.nis.wiki and self.reputation >= int(
 239                 settings.REP_TO_EDIT_WIKI))
 240
 241     @true_if_is_super_or_staff
 242     def can_wikify(self, post):
 243         return self == post.author or self.reputation >= int(settings.REP_TO_WIKIFY)
 244
 245     @true_if_is_super_or_staff
 246     def can_cancel_wiki(self, post):
 247         return self == post.author
 248
 249     @true_if_is_super_or_staff
 250     def can_retag_questions(self):
 251         return self.reputation >= int(settings.REP_TO_RETAG)
 252
 253     @true_if_is_super_or_staff
 254     def can_close_question(self, question):
 255         return (self == question.author and self.reputation >= int(settings.REP_TO_CLOSE_OWN)
 256         ) or self.reputation >= int(settings.REP_TO_CLOSE_OTHERS)
 257
 258     @true_if_is_super_or_staff
 259     def can_reopen_question(self, question):
 260         return self == question.author and self.reputation >= settings.REP_TO_REOPEN_OWN
 261
 262     @true_if_is_super_or_staff
 263     def can_delete_post(self, post):
 264         if post.node_type == "comment":
 265             return self.can_delete_comment(post)
 266
 267         return (self == post.author and (post.__class__.__name__ == "Answer" or
 268         not post.answers.exclude(author=self).count()))
 269
 270     @true_if_is_super_or_staff
 271     def can_upload_files(self):
 272         return self.reputation >= int(settings.REP_TO_UPLOAD)
 273
 274     def check_password(self, old_passwd):
 275         self.__dict__.update(self.__class__.objects.filter(id=self.id).values('password')[0])
 276         return DjangoUser.check_password(self, old_passwd)
 277
 278     @property
 279     def suspension(self):
 280         if self.__dict__.get('_suspension_dencache_', False) != None:
 281             try:
 282                 self.__dict__['_suspension_dencache_'] = self.actions.get(action_type="suspend", canceled=False)
 283             except ObjectDoesNotExist:
 284                 self.__dict__['_suspension_dencache_'] = None
 285             except MultipleObjectsReturned:
 286                 logging.error("Multiple suspension actions found for user %s (%s)" % (self.username, self.id))
 287                 self.__dict__['_suspension_dencache_'] = self.actions.filter(action_type="suspend", canceled=False
 288                                                                              ).order_by('-action_date')[0]
 289
 290         return self.__dict__['_suspension_dencache_']
 291
 292     def _pop_suspension_cache(self):
 293         self.__dict__.pop('_suspension_dencache_', None)
 294
 295     def is_suspended(self):
 296         if not self.is_active:
 297             suspension = self.suspension
 298
 299             if suspension and suspension.extra.get('bantype', None) == 'forxdays' and (
 300             datetime.datetime.now() > suspension.action_date + datetime.timedelta(
 301                     days=int(suspension.extra.get('forxdays', 365)))):
 302                 suspension.cancel()
 303             else:
 304                 return True
 305
 306         return False
 307
 308     class Meta:
 309         app_label = 'forum'
 310
 311 class SubscriptionSettings(models.Model):
 312     user = models.OneToOneField(User, related_name='subscription_settings')
 313
 314     enable_notifications = models.BooleanField(default=True)
 315
 316     #notify if
 317     member_joins = models.CharField(max_length=1, default='n')
 318     new_question = models.CharField(max_length=1, default='d')
 319     new_question_watched_tags = models.CharField(max_length=1, default='i')
 320     subscribed_questions = models.CharField(max_length=1, default='i')
 321
 322     #auto_subscribe_to
 323     all_questions = models.BooleanField(default=False)
 324     all_questions_watched_tags = models.BooleanField(default=False)
 325     questions_asked = models.BooleanField(default=True)
 326     questions_answered = models.BooleanField(default=True)
 327     questions_commented = models.BooleanField(default=False)
 328     questions_viewed = models.BooleanField(default=False)
 329
 330     #notify activity on subscribed
 331     notify_answers = models.BooleanField(default=True)
 332     notify_reply_to_comments = models.BooleanField(default=True)
 333     notify_comments_own_post = models.BooleanField(default=True)
 334     notify_comments = models.BooleanField(default=False)
 335     notify_accepted = models.BooleanField(default=False)
 336
 337     class Meta:
 338         app_label = 'forum'
 339
 340 from forum.utils.time import one_day_from_now
 341
 342 class ValidationHashManager(models.Manager):
 343     def _generate_md5_hash(self, user, type, hash_data, seed):
 344         return md5("%s%s%s%s" % (seed, "".join(map(str, hash_data)), user.id, type)).hexdigest()
 345
 346     def create_new(self, user, type, hash_data=[], expiration=None):
 347         seed = ''.join(Random().sample(string.letters+string.digits, 12))
 348         hash = self._generate_md5_hash(user, type, hash_data, seed)
 349
 350         obj = ValidationHash(hash_code=hash, seed=seed, user=user, type=type)
 351
 352         if expiration is not None:
 353             obj.expiration = expiration
 354
 355         try:
 356             obj.save()
 357         except:
 358             return None
 359
 360         return obj
 361
 362     def validate(self, hash, user, type, hash_data=[]):
 363         try:
 364             obj = self.get(hash_code=hash)
 365         except:
 366             return False
 367
 368         if obj.type != type:
 369             return False
 370
 371         if obj.user != user:
 372             return False
 373
 374         valid = (obj.hash_code == self._generate_md5_hash(obj.user, type, hash_data, obj.seed))
 375
 376         if valid:
 377             if obj.expiration < datetime.datetime.now():
 378                 obj.delete()
 379                 return False
 380             else:
 381                 obj.delete()
 382                 return True
 383
 384         return False
 385
 386 class ValidationHash(models.Model):
 387     hash_code = models.CharField(max_length=255, unique=True)
 388     seed = models.CharField(max_length=12)
 389     expiration = models.DateTimeField(default=one_day_from_now)
 390     type = models.CharField(max_length=12)
 391     user = models.ForeignKey(User)
 392
 393     objects = ValidationHashManager()
 394
 395     class Meta:
 396         unique_together = ('user', 'type')
 397         app_label = 'forum'
 398
 399     def __str__(self):
 400         return self.hash_code
 401
 402 class AuthKeyUserAssociation(models.Model):
 403     key = models.CharField(max_length=255, null=False, unique=True)
 404     provider = models.CharField(max_length=64)
 405     user = models.ForeignKey(User, related_name="auth_keys")
 406     added_at = models.DateTimeField(default=datetime.datetime.now)
 407
 408     class Meta:
 409         app_label = 'forum'