forum/models/user.py

   1 from base import *
   2 from utils import PickledObjectField
   3 from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
   4 from django.contrib.contenttypes.models import ContentType
   5 from django.contrib.auth.models import User as DjangoUser, AnonymousUser as DjangoAnonymousUser
   6 from django.db.models import Q
   7 try:
   8     from hashlib import md5
   9 except:
  10     from md5 import new as md5
  11
  12 import string
  13 from random import Random
  14
  15 from django.utils.translation import ugettext as _
  16 import logging
  17
  18 QUESTIONS_PER_PAGE_CHOICES = (
  19 (10, u'10'),
  20 (30, u'30'),
  21 (50, u'50'),
  22 )
  23
  24 class AnonymousUser(DjangoAnonymousUser):
  25     def get_visible_answers(self, question):
  26         return question.answers.filter_state(deleted=False)
  27
  28     def can_view_deleted_post(self, post):
  29         return False
  30
  31     def can_vote_up(self):
  32         return False
  33
  34     def can_vote_down(self):
  35         return False
  36
  37     def can_flag_offensive(self, post=None):
  38         return False
  39
  40     def can_view_offensive_flags(self, post=None):
  41         return False
  42
  43     def can_comment(self, post):
  44         return False
  45
  46     def can_like_comment(self, comment):
  47         return False
  48
  49     def can_edit_comment(self, comment):
  50         return False
  51
  52     def can_delete_comment(self, comment):
  53         return False
  54
  55     def can_convert_to_comment(self, answer):
  56         return False
  57
  58     def can_accept_answer(self, answer):
  59         return False
  60
  61     def can_create_tags(self):
  62         return False
  63
  64     def can_edit_post(self, post):
  65         return False
  66
  67     def can_wikify(self, post):
  68         return False
  69
  70     def can_cancel_wiki(self, post):
  71         return False
  72
  73     def can_retag_questions(self):
  74         return False
  75
  76     def can_close_question(self, question):
  77         return False
  78
  79     def can_reopen_question(self, question):
  80         return False
  81
  82     def can_delete_post(self, post):
  83         return False
  84
  85     def can_upload_files(self):
  86         return False
  87
  88 def true_if_is_super_or_staff(fn):
  89     def decorated(self, *args, **kwargs):
  90         return self.is_superuser or self.is_staff or fn(self, *args, **kwargs)
  91
  92     return decorated
  93
  94 def false_if_validation_required_to(item):
  95     def decorator(fn):
  96         def decorated(self, *args, **kwargs):
  97             if item in settings.REQUIRE_EMAIL_VALIDATION_TO and not self.email_isvalid:
  98                 return False
  99             else:
 100                 return fn(self, *args, **kwargs)
 101         return decorated
 102     return decorator
 103
 104 class User(BaseModel, DjangoUser):
 105     is_approved = models.BooleanField(default=False)
 106     email_isvalid = models.BooleanField(default=False)
 107
 108     reputation = models.PositiveIntegerField(default=0)
 109     gold = models.PositiveIntegerField(default=0)
 110     silver = models.PositiveIntegerField(default=0)
 111     bronze = models.PositiveIntegerField(default=0)
 112
 113     last_seen = models.DateTimeField(default=datetime.datetime.now)
 114     real_name = models.CharField(max_length=100, blank=True)
 115     website = models.URLField(max_length=200, blank=True)
 116     location = models.CharField(max_length=100, blank=True)
 117     date_of_birth = models.DateField(null=True, blank=True)
 118     about = models.TextField(blank=True)
 119
 120     subscriptions = models.ManyToManyField('Node', related_name='subscribers', through='QuestionSubscription')
 121
 122     vote_up_count = DenormalizedField("actions", canceled=False, action_type="voteup")
 123     vote_down_count = DenormalizedField("actions", canceled=False, action_type="votedown")
 124
 125     def __unicode__(self):
 126         return self.username
 127
 128     @property
 129     def prop(self):
 130         prop = self.__dict__.get('_prop', None)
 131
 132         if prop is None:
 133             prop = UserPropertyDict(self)
 134             self._prop = prop
 135
 136         return prop
 137
 138     @property
 139     def is_siteowner(self):
 140         #todo: temporary thing, for now lets just assume that the site owner will always be the first user of the application
 141         return self.id == 1
 142
 143     @property
 144     def decorated_name(self):
 145         if settings.SHOW_STATUS_DIAMONDS:
 146             if self.is_superuser:
 147                 return u"%s \u2666\u2666" % self.username
 148
 149             if self.is_staff:
 150                 return u"%s \u2666" % self.username
 151
 152         return self.username
 153
 154     @property
 155     def last_activity(self):
 156         return self.actions.order_by('-action_date')[0].action_date
 157
 158     @property
 159     def gravatar(self):
 160         return md5(self.email).hexdigest()
 161
 162     def save(self, *args, **kwargs):
 163         if self.reputation < 0:
 164             self.reputation = 0
 165
 166         new = not bool(self.id)
 167
 168         super(User, self).save(*args, **kwargs)
 169
 170         if new:
 171             sub_settings = SubscriptionSettings(user=self)
 172             sub_settings.save()
 173
 174     def get_absolute_url(self):
 175         return self.get_profile_url()
 176
 177     def get_messages(self):
 178         messages = []
 179         for m in self.message_set.all():
 180             messages.append(m.message)
 181         return messages
 182
 183     def delete_messages(self):
 184         self.message_set.all().delete()
 185
 186     @models.permalink
 187     def get_profile_url(self):
 188         return ('user_profile', (), {'id': self.id, 'slug': slugify(self.username)})
 189
 190     def get_absolute_url(self):
 191         return self.get_profile_url()
 192
 193     @models.permalink
 194     def get_asked_url(self):
 195         return ('user_questions', (), {'mode': _('asked-by'), 'user': self.id, 'slug': slugify(self.username)})
 196
 197     @models.permalink
 198     def get_answered_url(self):
 199         return ('user_questions', (), {'mode': _('answered-by'), 'user': self.id, 'slug': slugify(self.username)})
 200
 201     @models.permalink
 202     def get_subscribed_url(self):
 203         return ('user_questions', (), {'mode': _('subscribed-by'), 'user': self.id, 'slug': slugify(self.username)})
 204
 205     def get_profile_link(self):
 206         profile_link = u'<a href="%s">%s</a>' % (self.get_profile_url(), self.username)
 207         return mark_safe(profile_link)
 208
 209     def get_visible_answers(self, question):
 210         return question.answers.filter_state(deleted=False)
 211
 212     def get_vote_count_today(self):
 213         today = datetime.date.today()
 214         return self.actions.filter(canceled=False, action_type__in=("voteup", "votedown"),
 215                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 216
 217     def get_reputation_by_upvoted_today(self):
 218         today = datetime.datetime.now()
 219         sum = self.reputes.filter(reputed_at__range=(today - datetime.timedelta(days=1), today)).aggregate(
 220                 models.Sum('value'))
 221         #todo: redo this, maybe transform in the daily cap
 222         #if sum.get('value__sum', None) is not None: return sum['value__sum']
 223         return 0
 224
 225     def get_flagged_items_count_today(self):
 226         today = datetime.date.today()
 227         return self.actions.filter(canceled=False, action_type="flag",
 228                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 229
 230     @true_if_is_super_or_staff
 231     def can_view_deleted_post(self, post):
 232         return post.author == self
 233
 234     @true_if_is_super_or_staff
 235     def can_vote_up(self):
 236         return self.reputation >= int(settings.REP_TO_VOTE_UP)
 237
 238     @true_if_is_super_or_staff
 239     def can_vote_down(self):
 240         return self.reputation >= int(settings.REP_TO_VOTE_DOWN)
 241
 242     @false_if_validation_required_to('flag')
 243     def can_flag_offensive(self, post=None):
 244         if post is not None and post.author == self:
 245             return False
 246         return self.is_superuser or self.is_staff or self.reputation >= int(settings.REP_TO_FLAG)
 247
 248     @true_if_is_super_or_staff
 249     def can_view_offensive_flags(self, post=None):
 250         if post is not None and post.author == self:
 251             return True
 252         return self.reputation >= int(settings.REP_TO_VIEW_FLAGS)
 253
 254     @true_if_is_super_or_staff
 255     @false_if_validation_required_to('comment')
 256     def can_comment(self, post):
 257         return self == post.author or self.reputation >= int(settings.REP_TO_COMMENT
 258                 ) or (post.__class__.__name__ == "Answer" and self == post.question.author)
 259
 260     @true_if_is_super_or_staff
 261     def can_like_comment(self, comment):
 262         return self != comment.author and (self.reputation >= int(settings.REP_TO_LIKE_COMMENT))
 263
 264     @true_if_is_super_or_staff
 265     def can_edit_comment(self, comment):
 266         return (comment.author == self and comment.added_at >= datetime.datetime.now() - datetime.timedelta(minutes=60)
 267         ) or self.is_superuser
 268
 269     @true_if_is_super_or_staff
 270     def can_delete_comment(self, comment):
 271         return self == comment.author or self.reputation >= int(settings.REP_TO_DELETE_COMMENTS)
 272
 273     def can_convert_to_comment(self, answer):
 274         return (not answer.marked) and (self.is_superuser or self.is_staff or answer.author == self or self.reputation >= int
 275                 (settings.REP_TO_CONVERT_TO_COMMENT))
 276
 277     @true_if_is_super_or_staff
 278     def can_accept_answer(self, answer):
 279         return self == answer.question.author and (settings.USERS_CAN_ACCEPT_OWN or answer.author != answer.question.author)
 280
 281     @true_if_is_super_or_staff
 282     def can_create_tags(self):
 283         return self.reputation >= int(settings.REP_TO_CREATE_TAGS)
 284
 285     @true_if_is_super_or_staff
 286     def can_edit_post(self, post):
 287         return self == post.author or self.reputation >= int(settings.REP_TO_EDIT_OTHERS
 288                                                              ) or (post.nis.wiki and self.reputation >= int(
 289                 settings.REP_TO_EDIT_WIKI))
 290
 291     @true_if_is_super_or_staff
 292     def can_wikify(self, post):
 293         return self == post.author or self.reputation >= int(settings.REP_TO_WIKIFY)
 294
 295     @true_if_is_super_or_staff
 296     def can_cancel_wiki(self, post):
 297         return self == post.author
 298
 299     @true_if_is_super_or_staff
 300     def can_retag_questions(self):
 301         return self.reputation >= int(settings.REP_TO_RETAG)
 302
 303     @true_if_is_super_or_staff
 304     def can_close_question(self, question):
 305         return (self == question.author and self.reputation >= int(settings.REP_TO_CLOSE_OWN)
 306         ) or self.reputation >= int(settings.REP_TO_CLOSE_OTHERS)
 307
 308     @true_if_is_super_or_staff
 309     def can_reopen_question(self, question):
 310         return self == question.author and self.reputation >= settings.REP_TO_REOPEN_OWN
 311
 312     @true_if_is_super_or_staff
 313     def can_delete_post(self, post):
 314         if post.node_type == "comment":
 315             return self.can_delete_comment(post)
 316
 317         return (self == post.author and (post.__class__.__name__ == "Answer" or
 318         not post.answers.exclude(author__id=self.id).count()))
 319
 320     @true_if_is_super_or_staff
 321     def can_upload_files(self):
 322         return self.reputation >= int(settings.REP_TO_UPLOAD)
 323
 324     def email_valid_and_can_ask(self):
 325         return 'ask' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 326
 327     def email_valid_and_can_answer(self):
 328         return 'answer' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 329
 330     def check_password(self, old_passwd):
 331         self.__dict__.update(self.__class__.objects.filter(id=self.id).values('password')[0])
 332         return DjangoUser.check_password(self, old_passwd)
 333
 334     @property
 335     def suspension(self):
 336         if self.__dict__.get('_suspension_dencache_', False) != None:
 337             try:
 338                 self.__dict__['_suspension_dencache_'] = self.reputes.get(action__action_type="suspend", action__canceled=False).action
 339             except ObjectDoesNotExist:
 340                 self.__dict__['_suspension_dencache_'] = None
 341             except MultipleObjectsReturned:
 342                 logging.error("Multiple suspension actions found for user %s (%s)" % (self.username, self.id))
 343                 self.__dict__['_suspension_dencache_'] = self.reputes.filter(action__action_type="suspend", action__canceled=False
 344                                                                              ).order_by('-action__action_date')[0]
 345
 346         return self.__dict__['_suspension_dencache_']
 347
 348     def _pop_suspension_cache(self):
 349         self.__dict__.pop('_suspension_dencache_', None)
 350
 351     def is_suspended(self):
 352         if not self.is_active:
 353             suspension = self.suspension
 354
 355             if suspension and suspension.extra.get('bantype', None) == 'forxdays' and (
 356             datetime.datetime.now() > suspension.action_date + datetime.timedelta(
 357                     days=int(suspension.extra.get('forxdays', 365)))):
 358                 suspension.cancel()
 359             else:
 360                 return True
 361
 362         return False
 363
 364     class Meta:
 365         app_label = 'forum'
 366
 367 class UserProperty(BaseModel):
 368     user = models.ForeignKey(User, related_name='properties')
 369     key = models.CharField(max_length=16)
 370     value = PickledObjectField()
 371
 372     class Meta:
 373         app_label = 'forum'
 374         unique_together = ('user', 'key')
 375
 376     def cache_key(self):
 377         return self._generate_cache_key("%s:%s" % (self.user.id, self.key))
 378
 379     @classmethod
 380     def infer_cache_key(cls, querydict):
 381         if 'user' in querydict and 'key' in querydict:
 382             return cls._generate_cache_key("%s:%s" % (querydict['user'].id, querydict['key']))
 383
 384         return None
 385
 386 class UserPropertyDict(object):
 387     def __init__(self, user):
 388         self.__dict__['_user'] = user
 389
 390     def __get_property(self, name):
 391         if self.__dict__.get('__%s__' % name, None):
 392             return self.__dict__['__%s__' % name]
 393         try:
 394             user = self.__dict__['_user']
 395             prop = UserProperty.objects.get(user=user, key=name)
 396             self.__dict__['__%s__' % name] = prop
 397             self.__dict__[name] = prop.value
 398             return prop
 399         except:
 400             return None
 401
 402
 403     def __getattr__(self, name):
 404         if self.__dict__.get(name, None):
 405             return self.__dict__[name]
 406
 407         prop = self.__get_property(name)
 408
 409         if prop:
 410             return prop.value
 411         else:
 412             return None
 413
 414     def __setattr__(self, name, value):
 415         current = self.__get_property(name)
 416
 417         if value is not None:
 418             if current:
 419                 current.value = value
 420                 self.__dict__[name] = value
 421                 current.save(full_save=True)
 422             else:
 423                 user = self.__dict__['_user']
 424                 prop = UserProperty(user=user, value=value, key=name)
 425                 prop.save()
 426                 self.__dict__[name] = value
 427                 self.__dict__['__%s__' % name] = prop
 428         else:
 429             if current:
 430                 current.delete()
 431                 del self.__dict__[name]
 432                 del self.__dict__['__%s__' % name]
 433
 434
 435 class SubscriptionSettings(models.Model):
 436     user = models.OneToOneField(User, related_name='subscription_settings', editable=False)
 437
 438     enable_notifications = models.BooleanField(default=True)
 439
 440     #notify if
 441     member_joins = models.CharField(max_length=1, default='n')
 442     new_question = models.CharField(max_length=1, default='n')
 443     new_question_watched_tags = models.CharField(max_length=1, default='i')
 444     subscribed_questions = models.CharField(max_length=1, default='i')
 445
 446     #auto_subscribe_to
 447     all_questions = models.BooleanField(default=False)
 448     all_questions_watched_tags = models.BooleanField(default=False)
 449     questions_asked = models.BooleanField(default=True)
 450     questions_answered = models.BooleanField(default=True)
 451     questions_commented = models.BooleanField(default=False)
 452     questions_viewed = models.BooleanField(default=False)
 453
 454     #notify activity on subscribed
 455     notify_answers = models.BooleanField(default=True)
 456     notify_reply_to_comments = models.BooleanField(default=True)
 457     notify_comments_own_post = models.BooleanField(default=True)
 458     notify_comments = models.BooleanField(default=False)
 459     notify_accepted = models.BooleanField(default=False)
 460
 461     send_digest = models.BooleanField(default=True)
 462
 463     class Meta:
 464         app_label = 'forum'
 465
 466 from forum.utils.time import one_day_from_now
 467
 468 class ValidationHashManager(models.Manager):
 469     def _generate_md5_hash(self, user, type, hash_data, seed):
 470         return md5("%s%s%s%s" % (seed, "".join(map(str, hash_data)), user.id, type)).hexdigest()
 471
 472     def create_new(self, user, type, hash_data=[], expiration=None):
 473         seed = ''.join(Random().sample(string.letters+string.digits, 12))
 474         hash = self._generate_md5_hash(user, type, hash_data, seed)
 475
 476         obj = ValidationHash(hash_code=hash, seed=seed, user=user, type=type)
 477
 478         if expiration is not None:
 479             obj.expiration = expiration
 480
 481         try:
 482             obj.save()
 483         except:
 484             return None
 485
 486         return obj
 487
 488     def validate(self, hash, user, type, hash_data=[]):
 489         try:
 490             obj = self.get(hash_code=hash)
 491         except:
 492             return False
 493
 494         if obj.type != type:
 495             return False
 496
 497         if obj.user != user:
 498             return False
 499
 500         valid = (obj.hash_code == self._generate_md5_hash(obj.user, type, hash_data, obj.seed))
 501
 502         if valid:
 503             if obj.expiration < datetime.datetime.now():
 504                 obj.delete()
 505                 return False
 506             else:
 507                 obj.delete()
 508                 return True
 509
 510         return False
 511
 512 class ValidationHash(models.Model):
 513     hash_code = models.CharField(max_length=255, unique=True)
 514     seed = models.CharField(max_length=12)
 515     expiration = models.DateTimeField(default=one_day_from_now)
 516     type = models.CharField(max_length=12)
 517     user = models.ForeignKey(User)
 518
 519     objects = ValidationHashManager()
 520
 521     class Meta:
 522         unique_together = ('user', 'type')
 523         app_label = 'forum'
 524
 525     def __str__(self):
 526         return self.hash_code
 527
 528 class AuthKeyUserAssociation(models.Model):
 529     key = models.CharField(max_length=255, null=False, unique=True)
 530     provider = models.CharField(max_length=64)
 531     user = models.ForeignKey(User, related_name="auth_keys")
 532     added_at = models.DateTimeField(default=datetime.datetime.now)
 533
 534     class Meta:
 535         app_label = 'forum'