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 def false_if_validation_required_to(item):
  94     def decorator(fn):
  95         def decorated(self, *args, **kwargs):
  96             if item in settings.REQUIRE_EMAIL_VALIDATION_TO and not self.email_isvalid:
  97                 return False
  98             else:
  99                 return fn(self, *args, **kwargs)
 100         return decorated
 101     return decorator
 102
 103 class User(BaseModel, DjangoUser):
 104     is_approved = models.BooleanField(default=False)
 105     email_isvalid = models.BooleanField(default=False)
 106
 107     reputation = models.PositiveIntegerField(default=0)
 108     gold = models.PositiveIntegerField(default=0)
 109     silver = models.PositiveIntegerField(default=0)
 110     bronze = models.PositiveIntegerField(default=0)
 111
 112     last_seen = models.DateTimeField(default=datetime.datetime.now)
 113     real_name = models.CharField(max_length=100, blank=True)
 114     website = models.URLField(max_length=200, blank=True)
 115     location = models.CharField(max_length=100, blank=True)
 116     date_of_birth = models.DateField(null=True, blank=True)
 117     about = models.TextField(blank=True)
 118
 119     subscriptions = models.ManyToManyField('Node', related_name='subscribers', through='QuestionSubscription')
 120
 121     vote_up_count = DenormalizedField("actions", canceled=False, action_type="voteup")
 122     vote_down_count = DenormalizedField("actions", canceled=False, action_type="votedown")
 123
 124     def __unicode__(self):
 125         return self.username
 126
 127     @property
 128     def is_siteowner(self):
 129         #todo: temporary thing, for now lets just assume that the site owner will always be the first user of the application
 130         return self.id == 1
 131
 132     @property
 133     def gravatar(self):
 134         return md5(self.email).hexdigest()
 135
 136     def save(self, *args, **kwargs):
 137         if self.reputation < 0:
 138             self.reputation = 0
 139
 140         new = not bool(self.id)
 141
 142         super(User, self).save(*args, **kwargs)
 143
 144         if new:
 145             sub_settings = SubscriptionSettings(user=self)
 146             sub_settings.save()
 147
 148     def get_absolute_url(self):
 149         return self.get_profile_url()
 150
 151     def get_messages(self):
 152         messages = []
 153         for m in self.message_set.all():
 154             messages.append(m.message)
 155         return messages
 156
 157     def delete_messages(self):
 158         self.message_set.all().delete()
 159
 160     @models.permalink
 161     def get_profile_url(self):
 162         return ('user_profile', (), {'id': self.id, 'slug': slugify(self.username)})
 163
 164     def get_absolute_url(self):
 165         return self.get_profile_url()
 166
 167     def get_profile_link(self):
 168         profile_link = u'<a href="%s">%s</a>' % (self.get_profile_url(), self.username)
 169         return mark_safe(profile_link)
 170
 171     def get_visible_answers(self, question):
 172         return question.answers.filter_state(deleted=False)
 173
 174     def get_vote_count_today(self):
 175         today = datetime.date.today()
 176         return self.actions.filter(canceled=False, action_type__in=("voteup", "votedown"),
 177                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 178
 179     def get_reputation_by_upvoted_today(self):
 180         today = datetime.datetime.now()
 181         sum = self.reputes.filter(reputed_at__range=(today - datetime.timedelta(days=1), today)).aggregate(
 182                 models.Sum('value'))
 183         #todo: redo this, maybe transform in the daily cap
 184         #if sum.get('value__sum', None) is not None: return sum['value__sum']
 185         return 0
 186
 187     def get_flagged_items_count_today(self):
 188         today = datetime.date.today()
 189         return self.actions.filter(canceled=False, action_type="flag",
 190                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 191
 192     @true_if_is_super_or_staff
 193     def can_view_deleted_post(self, post):
 194         return post.author == self
 195
 196     @true_if_is_super_or_staff
 197     def can_vote_up(self):
 198         return self.reputation >= int(settings.REP_TO_VOTE_UP)
 199
 200     @true_if_is_super_or_staff
 201     def can_vote_down(self):
 202         return self.reputation >= int(settings.REP_TO_VOTE_DOWN)
 203
 204     @false_if_validation_required_to('flag')
 205     def can_flag_offensive(self, post=None):
 206         if post is not None and post.author == self:
 207             return False
 208         return self.is_superuser or self.is_staff or self.reputation >= int(settings.REP_TO_FLAG)
 209
 210     @true_if_is_super_or_staff
 211     def can_view_offensive_flags(self, post=None):
 212         if post is not None and post.author == self:
 213             return True
 214         return self.reputation >= int(settings.REP_TO_VIEW_FLAGS)
 215
 216     @true_if_is_super_or_staff
 217     @false_if_validation_required_to('comment')
 218     def can_comment(self, post):
 219         return self == post.author or self.reputation >= int(settings.REP_TO_COMMENT
 220                 ) or (post.__class__.__name__ == "Answer" and self == post.question.author)
 221
 222     @true_if_is_super_or_staff
 223     def can_like_comment(self, comment):
 224         return self != comment.author and (self.reputation >= int(settings.REP_TO_LIKE_COMMENT))
 225
 226     @true_if_is_super_or_staff
 227     def can_edit_comment(self, comment):
 228         return (comment.author == self and comment.added_at >= datetime.datetime.now() - datetime.timedelta(minutes=60)
 229         ) or self.is_superuser
 230
 231     @true_if_is_super_or_staff
 232     def can_delete_comment(self, comment):
 233         return self == comment.author or self.reputation >= int(settings.REP_TO_DELETE_COMMENTS)
 234
 235     def can_convert_to_comment(self, answer):
 236         return (not answer.marked) and (self.is_superuser or self.is_staff or answer.author == self or self.reputation >= int
 237                 (settings.REP_TO_CONVERT_TO_COMMENT))
 238
 239     @true_if_is_super_or_staff
 240     def can_accept_answer(self, answer):
 241         return self == answer.question.author
 242
 243     @true_if_is_super_or_staff
 244     def can_create_tags(self):
 245         return self.reputation >= int(settings.REP_TO_CREATE_TAGS)
 246
 247     @true_if_is_super_or_staff
 248     def can_edit_post(self, post):
 249         return self == post.author or self.reputation >= int(settings.REP_TO_EDIT_OTHERS
 250                                                              ) or (post.nis.wiki and self.reputation >= int(
 251                 settings.REP_TO_EDIT_WIKI))
 252
 253     @true_if_is_super_or_staff
 254     def can_wikify(self, post):
 255         return self == post.author or self.reputation >= int(settings.REP_TO_WIKIFY)
 256
 257     @true_if_is_super_or_staff
 258     def can_cancel_wiki(self, post):
 259         return self == post.author
 260
 261     @true_if_is_super_or_staff
 262     def can_retag_questions(self):
 263         return self.reputation >= int(settings.REP_TO_RETAG)
 264
 265     @true_if_is_super_or_staff
 266     def can_close_question(self, question):
 267         return (self == question.author and self.reputation >= int(settings.REP_TO_CLOSE_OWN)
 268         ) or self.reputation >= int(settings.REP_TO_CLOSE_OTHERS)
 269
 270     @true_if_is_super_or_staff
 271     def can_reopen_question(self, question):
 272         return self == question.author and self.reputation >= settings.REP_TO_REOPEN_OWN
 273
 274     @true_if_is_super_or_staff
 275     def can_delete_post(self, post):
 276         if post.node_type == "comment":
 277             return self.can_delete_comment(post)
 278
 279         return (self == post.author and (post.__class__.__name__ == "Answer" or
 280         not post.answers.exclude(author=self).count()))
 281
 282     @true_if_is_super_or_staff
 283     def can_upload_files(self):
 284         return self.reputation >= int(settings.REP_TO_UPLOAD)
 285
 286     def email_valid_and_can_ask(self):
 287         return 'ask' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 288
 289     def email_valid_and_can_answer(self):
 290         return 'answer' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 291
 292     def check_password(self, old_passwd):
 293         self.__dict__.update(self.__class__.objects.filter(id=self.id).values('password')[0])
 294         return DjangoUser.check_password(self, old_passwd)
 295
 296     @property
 297     def suspension(self):
 298         if self.__dict__.get('_suspension_dencache_', False) != None:
 299             try:
 300                 self.__dict__['_suspension_dencache_'] = self.actions.get(action_type="suspend", canceled=False)
 301             except ObjectDoesNotExist:
 302                 self.__dict__['_suspension_dencache_'] = None
 303             except MultipleObjectsReturned:
 304                 logging.error("Multiple suspension actions found for user %s (%s)" % (self.username, self.id))
 305                 self.__dict__['_suspension_dencache_'] = self.actions.filter(action_type="suspend", canceled=False
 306                                                                              ).order_by('-action_date')[0]
 307
 308         return self.__dict__['_suspension_dencache_']
 309
 310     def _pop_suspension_cache(self):
 311         self.__dict__.pop('_suspension_dencache_', None)
 312
 313     def is_suspended(self):
 314         if not self.is_active:
 315             suspension = self.suspension
 316
 317             if suspension and suspension.extra.get('bantype', None) == 'forxdays' and (
 318             datetime.datetime.now() > suspension.action_date + datetime.timedelta(
 319                     days=int(suspension.extra.get('forxdays', 365)))):
 320                 suspension.cancel()
 321             else:
 322                 return True
 323
 324         return False
 325
 326     class Meta:
 327         app_label = 'forum'
 328
 329 class SubscriptionSettings(models.Model):
 330     user = models.OneToOneField(User, related_name='subscription_settings')
 331
 332     enable_notifications = models.BooleanField(default=True)
 333
 334     #notify if
 335     member_joins = models.CharField(max_length=1, default='n')
 336     new_question = models.CharField(max_length=1, default='d')
 337     new_question_watched_tags = models.CharField(max_length=1, default='i')
 338     subscribed_questions = models.CharField(max_length=1, default='i')
 339
 340     #auto_subscribe_to
 341     all_questions = models.BooleanField(default=False)
 342     all_questions_watched_tags = models.BooleanField(default=False)
 343     questions_asked = models.BooleanField(default=True)
 344     questions_answered = models.BooleanField(default=True)
 345     questions_commented = models.BooleanField(default=False)
 346     questions_viewed = models.BooleanField(default=False)
 347
 348     #notify activity on subscribed
 349     notify_answers = models.BooleanField(default=True)
 350     notify_reply_to_comments = models.BooleanField(default=True)
 351     notify_comments_own_post = models.BooleanField(default=True)
 352     notify_comments = models.BooleanField(default=False)
 353     notify_accepted = models.BooleanField(default=False)
 354
 355     class Meta:
 356         app_label = 'forum'
 357
 358 from forum.utils.time import one_day_from_now
 359
 360 class ValidationHashManager(models.Manager):
 361     def _generate_md5_hash(self, user, type, hash_data, seed):
 362         return md5("%s%s%s%s" % (seed, "".join(map(str, hash_data)), user.id, type)).hexdigest()
 363
 364     def create_new(self, user, type, hash_data=[], expiration=None):
 365         seed = ''.join(Random().sample(string.letters+string.digits, 12))
 366         hash = self._generate_md5_hash(user, type, hash_data, seed)
 367
 368         obj = ValidationHash(hash_code=hash, seed=seed, user=user, type=type)
 369
 370         if expiration is not None:
 371             obj.expiration = expiration
 372
 373         try:
 374             obj.save()
 375         except:
 376             return None
 377
 378         return obj
 379
 380     def validate(self, hash, user, type, hash_data=[]):
 381         try:
 382             obj = self.get(hash_code=hash)
 383         except:
 384             return False
 385
 386         if obj.type != type:
 387             return False
 388
 389         if obj.user != user:
 390             return False
 391
 392         valid = (obj.hash_code == self._generate_md5_hash(obj.user, type, hash_data, obj.seed))
 393
 394         if valid:
 395             if obj.expiration < datetime.datetime.now():
 396                 obj.delete()
 397                 return False
 398             else:
 399                 obj.delete()
 400                 return True
 401
 402         return False
 403
 404 class ValidationHash(models.Model):
 405     hash_code = models.CharField(max_length=255, unique=True)
 406     seed = models.CharField(max_length=12)
 407     expiration = models.DateTimeField(default=one_day_from_now)
 408     type = models.CharField(max_length=12)
 409     user = models.ForeignKey(User)
 410
 411     objects = ValidationHashManager()
 412
 413     class Meta:
 414         unique_together = ('user', 'type')
 415         app_label = 'forum'
 416
 417     def __str__(self):
 418         return self.hash_code
 419
 420 class AuthKeyUserAssociation(models.Model):
 421     key = models.CharField(max_length=255, null=False, unique=True)
 422     provider = models.CharField(max_length=64)
 423     user = models.ForeignKey(User, related_name="auth_keys")
 424     added_at = models.DateTimeField(default=datetime.datetime.now)
 425
 426     class Meta:
 427         app_label = 'forum'