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 decorated_name(self):
 134         if settings.SHOW_STATUS_DIAMONDS:
 135             if self.is_superuser:
 136                 return u"%s \u2666\u2666" % self.username
 137
 138             if self.is_staff:
 139                 return u"%s \u2666" % self.username
 140
 141         return self.username
 142
 143     @property
 144     def gravatar(self):
 145         return md5(self.email).hexdigest()
 146
 147     def save(self, *args, **kwargs):
 148         if self.reputation < 0:
 149             self.reputation = 0
 150
 151         new = not bool(self.id)
 152
 153         super(User, self).save(*args, **kwargs)
 154
 155         if new:
 156             sub_settings = SubscriptionSettings(user=self)
 157             sub_settings.save()
 158
 159     def get_absolute_url(self):
 160         return self.get_profile_url()
 161
 162     def get_messages(self):
 163         messages = []
 164         for m in self.message_set.all():
 165             messages.append(m.message)
 166         return messages
 167
 168     def delete_messages(self):
 169         self.message_set.all().delete()
 170
 171     @models.permalink
 172     def get_profile_url(self):
 173         return ('user_profile', (), {'id': self.id, 'slug': slugify(self.username)})
 174
 175     def get_absolute_url(self):
 176         return self.get_profile_url()
 177
 178     def get_profile_link(self):
 179         profile_link = u'<a href="%s">%s</a>' % (self.get_profile_url(), self.username)
 180         return mark_safe(profile_link)
 181
 182     def get_visible_answers(self, question):
 183         return question.answers.filter_state(deleted=False)
 184
 185     def get_vote_count_today(self):
 186         today = datetime.date.today()
 187         return self.actions.filter(canceled=False, action_type__in=("voteup", "votedown"),
 188                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 189
 190     def get_reputation_by_upvoted_today(self):
 191         today = datetime.datetime.now()
 192         sum = self.reputes.filter(reputed_at__range=(today - datetime.timedelta(days=1), today)).aggregate(
 193                 models.Sum('value'))
 194         #todo: redo this, maybe transform in the daily cap
 195         #if sum.get('value__sum', None) is not None: return sum['value__sum']
 196         return 0
 197
 198     def get_flagged_items_count_today(self):
 199         today = datetime.date.today()
 200         return self.actions.filter(canceled=False, action_type="flag",
 201                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 202
 203     @true_if_is_super_or_staff
 204     def can_view_deleted_post(self, post):
 205         return post.author == self
 206
 207     @true_if_is_super_or_staff
 208     def can_vote_up(self):
 209         return self.reputation >= int(settings.REP_TO_VOTE_UP)
 210
 211     @true_if_is_super_or_staff
 212     def can_vote_down(self):
 213         return self.reputation >= int(settings.REP_TO_VOTE_DOWN)
 214
 215     @false_if_validation_required_to('flag')
 216     def can_flag_offensive(self, post=None):
 217         if post is not None and post.author == self:
 218             return False
 219         return self.is_superuser or self.is_staff or self.reputation >= int(settings.REP_TO_FLAG)
 220
 221     @true_if_is_super_or_staff
 222     def can_view_offensive_flags(self, post=None):
 223         if post is not None and post.author == self:
 224             return True
 225         return self.reputation >= int(settings.REP_TO_VIEW_FLAGS)
 226
 227     @true_if_is_super_or_staff
 228     @false_if_validation_required_to('comment')
 229     def can_comment(self, post):
 230         return self == post.author or self.reputation >= int(settings.REP_TO_COMMENT
 231                 ) or (post.__class__.__name__ == "Answer" and self == post.question.author)
 232
 233     @true_if_is_super_or_staff
 234     def can_like_comment(self, comment):
 235         return self != comment.author and (self.reputation >= int(settings.REP_TO_LIKE_COMMENT))
 236
 237     @true_if_is_super_or_staff
 238     def can_edit_comment(self, comment):
 239         return (comment.author == self and comment.added_at >= datetime.datetime.now() - datetime.timedelta(minutes=60)
 240         ) or self.is_superuser
 241
 242     @true_if_is_super_or_staff
 243     def can_delete_comment(self, comment):
 244         return self == comment.author or self.reputation >= int(settings.REP_TO_DELETE_COMMENTS)
 245
 246     def can_convert_to_comment(self, answer):
 247         return (not answer.marked) and (self.is_superuser or self.is_staff or answer.author == self or self.reputation >= int
 248                 (settings.REP_TO_CONVERT_TO_COMMENT))
 249
 250     @true_if_is_super_or_staff
 251     def can_accept_answer(self, answer):
 252         return self == answer.question.author
 253
 254     @true_if_is_super_or_staff
 255     def can_create_tags(self):
 256         return self.reputation >= int(settings.REP_TO_CREATE_TAGS)
 257
 258     @true_if_is_super_or_staff
 259     def can_edit_post(self, post):
 260         return self == post.author or self.reputation >= int(settings.REP_TO_EDIT_OTHERS
 261                                                              ) or (post.nis.wiki and self.reputation >= int(
 262                 settings.REP_TO_EDIT_WIKI))
 263
 264     @true_if_is_super_or_staff
 265     def can_wikify(self, post):
 266         return self == post.author or self.reputation >= int(settings.REP_TO_WIKIFY)
 267
 268     @true_if_is_super_or_staff
 269     def can_cancel_wiki(self, post):
 270         return self == post.author
 271
 272     @true_if_is_super_or_staff
 273     def can_retag_questions(self):
 274         return self.reputation >= int(settings.REP_TO_RETAG)
 275
 276     @true_if_is_super_or_staff
 277     def can_close_question(self, question):
 278         return (self == question.author and self.reputation >= int(settings.REP_TO_CLOSE_OWN)
 279         ) or self.reputation >= int(settings.REP_TO_CLOSE_OTHERS)
 280
 281     @true_if_is_super_or_staff
 282     def can_reopen_question(self, question):
 283         return self == question.author and self.reputation >= settings.REP_TO_REOPEN_OWN
 284
 285     @true_if_is_super_or_staff
 286     def can_delete_post(self, post):
 287         if post.node_type == "comment":
 288             return self.can_delete_comment(post)
 289
 290         return (self == post.author and (post.__class__.__name__ == "Answer" or
 291         not post.answers.exclude(author=self).count()))
 292
 293     @true_if_is_super_or_staff
 294     def can_upload_files(self):
 295         return self.reputation >= int(settings.REP_TO_UPLOAD)
 296
 297     def email_valid_and_can_ask(self):
 298         return 'ask' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 299
 300     def email_valid_and_can_answer(self):
 301         return 'answer' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 302
 303     def check_password(self, old_passwd):
 304         self.__dict__.update(self.__class__.objects.filter(id=self.id).values('password')[0])
 305         return DjangoUser.check_password(self, old_passwd)
 306
 307     @property
 308     def suspension(self):
 309         if self.__dict__.get('_suspension_dencache_', False) != None:
 310             try:
 311                 self.__dict__['_suspension_dencache_'] = self.actions.get(action_type="suspend", canceled=False)
 312             except ObjectDoesNotExist:
 313                 self.__dict__['_suspension_dencache_'] = None
 314             except MultipleObjectsReturned:
 315                 logging.error("Multiple suspension actions found for user %s (%s)" % (self.username, self.id))
 316                 self.__dict__['_suspension_dencache_'] = self.actions.filter(action_type="suspend", canceled=False
 317                                                                              ).order_by('-action_date')[0]
 318
 319         return self.__dict__['_suspension_dencache_']
 320
 321     def _pop_suspension_cache(self):
 322         self.__dict__.pop('_suspension_dencache_', None)
 323
 324     def is_suspended(self):
 325         if not self.is_active:
 326             suspension = self.suspension
 327
 328             if suspension and suspension.extra.get('bantype', None) == 'forxdays' and (
 329             datetime.datetime.now() > suspension.action_date + datetime.timedelta(
 330                     days=int(suspension.extra.get('forxdays', 365)))):
 331                 suspension.cancel()
 332             else:
 333                 return True
 334
 335         return False
 336
 337     class Meta:
 338         app_label = 'forum'
 339
 340 class SubscriptionSettings(models.Model):
 341     user = models.OneToOneField(User, related_name='subscription_settings')
 342
 343     enable_notifications = models.BooleanField(default=True)
 344
 345     #notify if
 346     member_joins = models.CharField(max_length=1, default='n')
 347     new_question = models.CharField(max_length=1, default='d')
 348     new_question_watched_tags = models.CharField(max_length=1, default='i')
 349     subscribed_questions = models.CharField(max_length=1, default='i')
 350
 351     #auto_subscribe_to
 352     all_questions = models.BooleanField(default=False)
 353     all_questions_watched_tags = models.BooleanField(default=False)
 354     questions_asked = models.BooleanField(default=True)
 355     questions_answered = models.BooleanField(default=True)
 356     questions_commented = models.BooleanField(default=False)
 357     questions_viewed = models.BooleanField(default=False)
 358
 359     #notify activity on subscribed
 360     notify_answers = models.BooleanField(default=True)
 361     notify_reply_to_comments = models.BooleanField(default=True)
 362     notify_comments_own_post = models.BooleanField(default=True)
 363     notify_comments = models.BooleanField(default=False)
 364     notify_accepted = models.BooleanField(default=False)
 365
 366     class Meta:
 367         app_label = 'forum'
 368
 369 from forum.utils.time import one_day_from_now
 370
 371 class ValidationHashManager(models.Manager):
 372     def _generate_md5_hash(self, user, type, hash_data, seed):
 373         return md5("%s%s%s%s" % (seed, "".join(map(str, hash_data)), user.id, type)).hexdigest()
 374
 375     def create_new(self, user, type, hash_data=[], expiration=None):
 376         seed = ''.join(Random().sample(string.letters+string.digits, 12))
 377         hash = self._generate_md5_hash(user, type, hash_data, seed)
 378
 379         obj = ValidationHash(hash_code=hash, seed=seed, user=user, type=type)
 380
 381         if expiration is not None:
 382             obj.expiration = expiration
 383
 384         try:
 385             obj.save()
 386         except:
 387             return None
 388
 389         return obj
 390
 391     def validate(self, hash, user, type, hash_data=[]):
 392         try:
 393             obj = self.get(hash_code=hash)
 394         except:
 395             return False
 396
 397         if obj.type != type:
 398             return False
 399
 400         if obj.user != user:
 401             return False
 402
 403         valid = (obj.hash_code == self._generate_md5_hash(obj.user, type, hash_data, obj.seed))
 404
 405         if valid:
 406             if obj.expiration < datetime.datetime.now():
 407                 obj.delete()
 408                 return False
 409             else:
 410                 obj.delete()
 411                 return True
 412
 413         return False
 414
 415 class ValidationHash(models.Model):
 416     hash_code = models.CharField(max_length=255, unique=True)
 417     seed = models.CharField(max_length=12)
 418     expiration = models.DateTimeField(default=one_day_from_now)
 419     type = models.CharField(max_length=12)
 420     user = models.ForeignKey(User)
 421
 422     objects = ValidationHashManager()
 423
 424     class Meta:
 425         unique_together = ('user', 'type')
 426         app_label = 'forum'
 427
 428     def __str__(self):
 429         return self.hash_code
 430
 431 class AuthKeyUserAssociation(models.Model):
 432     key = models.CharField(max_length=255, null=False, unique=True)
 433     provider = models.CharField(max_length=64)
 434     user = models.ForeignKey(User, related_name="auth_keys")
 435     added_at = models.DateTimeField(default=datetime.datetime.now)
 436
 437     class Meta:
 438         app_label = 'forum'