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_convert_comment_to_answer(self, comment):
  59         return False
  60
  61     def can_accept_answer(self, answer):
  62         return False
  63
  64     def can_create_tags(self):
  65         return False
  66
  67     def can_edit_post(self, post):
  68         return False
  69
  70     def can_wikify(self, post):
  71         return False
  72
  73     def can_cancel_wiki(self, post):
  74         return False
  75
  76     def can_retag_questions(self):
  77         return False
  78
  79     def can_close_question(self, question):
  80         return False
  81
  82     def can_reopen_question(self, question):
  83         return False
  84
  85     def can_delete_post(self, post):
  86         return False
  87
  88     def can_upload_files(self):
  89         return False
  90
  91     def is_a_super_user_or_staff(self):
  92         return False
  93
  94 def true_if_is_super_or_staff(fn):
  95     def decorated(self, *args, **kwargs):
  96         return self.is_superuser or self.is_staff or fn(self, *args, **kwargs)
  97
  98     return decorated
  99
 100 def false_if_validation_required_to(item):
 101     def decorator(fn):
 102         def decorated(self, *args, **kwargs):
 103             if item in settings.REQUIRE_EMAIL_VALIDATION_TO and not self.email_isvalid:
 104                 return False
 105             else:
 106                 return fn(self, *args, **kwargs)
 107         return decorated
 108     return decorator
 109
 110 class User(BaseModel, DjangoUser):
 111     is_approved = models.BooleanField(default=False)
 112     email_isvalid = models.BooleanField(default=False)
 113
 114     reputation = models.PositiveIntegerField(default=0)
 115     gold = models.PositiveIntegerField(default=0)
 116     silver = models.PositiveIntegerField(default=0)
 117     bronze = models.PositiveIntegerField(default=0)
 118
 119     last_seen = models.DateTimeField(default=datetime.datetime.now)
 120     real_name = models.CharField(max_length=100, blank=True)
 121     website = models.URLField(max_length=200, blank=True)
 122     location = models.CharField(max_length=100, blank=True)
 123     date_of_birth = models.DateField(null=True, blank=True)
 124     about = models.TextField(blank=True)
 125
 126     subscriptions = models.ManyToManyField('Node', related_name='subscribers', through='QuestionSubscription')
 127
 128     vote_up_count = DenormalizedField("actions", canceled=False, action_type="voteup")
 129     vote_down_count = DenormalizedField("actions", canceled=False, action_type="votedown")
 130
 131     def __unicode__(self):
 132         return self.username
 133
 134     @property
 135     def prop(self):
 136         prop = self.__dict__.get('_prop', None)
 137
 138         if prop is None:
 139             prop = UserPropertyDict(self)
 140             self._prop = prop
 141
 142         return prop
 143
 144     @property
 145     def is_siteowner(self):
 146         #todo: temporary thing, for now lets just assume that the site owner will always be the first user of the application
 147         return self.id == 1
 148
 149     @property
 150     def decorated_name(self):
 151         if settings.SHOW_STATUS_DIAMONDS:
 152             if self.is_superuser:
 153                 return u"%s \u2666\u2666" % self.username
 154
 155             if self.is_staff:
 156                 return u"%s \u2666" % self.username
 157
 158         return self.username
 159
 160     @property
 161     def last_activity(self):
 162         try:
 163             return self.actions.order_by('-action_date')[0].action_date
 164         except:
 165             return self.last_seen
 166
 167     @property
 168     def gravatar(self):
 169         return md5(self.email.lower()).hexdigest()
 170
 171     def save(self, *args, **kwargs):
 172         if self.reputation < 0:
 173             self.reputation = 0
 174
 175         new = not bool(self.id)
 176
 177         super(User, self).save(*args, **kwargs)
 178
 179         if new:
 180             sub_settings = SubscriptionSettings(user=self)
 181             sub_settings.save()
 182
 183     def get_absolute_url(self):
 184         return self.get_profile_url()
 185
 186     def get_messages(self):
 187         messages = []
 188         for m in self.message_set.all():
 189             messages.append(m.message)
 190         return messages
 191
 192     def delete_messages(self):
 193         self.message_set.all().delete()
 194
 195     @models.permalink
 196     def get_profile_url(self):
 197         return ('user_profile', (), {'id': self.id, 'slug': slugify(self.username)})
 198
 199     def get_absolute_url(self):
 200         return self.get_profile_url()
 201
 202     @models.permalink
 203     def get_asked_url(self):
 204         return ('user_questions', (), {'mode': _('asked-by'), 'user': self.id, 'slug': slugify(self.username)})
 205
 206     @models.permalink
 207     def get_answered_url(self):
 208         return ('user_questions', (), {'mode': _('answered-by'), 'user': self.id, 'slug': slugify(self.username)})
 209
 210     @models.permalink
 211     def get_subscribed_url(self):
 212         return ('user_questions', (), {'mode': _('subscribed-by'), 'user': self.id, 'slug': slugify(self.username)})
 213
 214     def get_profile_link(self):
 215         profile_link = u'<a href="%s">%s</a>' % (self.get_profile_url(), self.username)
 216         return mark_safe(profile_link)
 217
 218     def get_visible_answers(self, question):
 219         return question.answers.filter_state(deleted=False)
 220
 221     def get_vote_count_today(self):
 222         today = datetime.date.today()
 223         return self.actions.filter(canceled=False, action_type__in=("voteup", "votedown"),
 224                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 225
 226     def get_reputation_by_upvoted_today(self):
 227         today = datetime.datetime.now()
 228         sum = self.reputes.filter(reputed_at__range=(today - datetime.timedelta(days=1), today)).aggregate(
 229                 models.Sum('value'))
 230         #todo: redo this, maybe transform in the daily cap
 231         #if sum.get('value__sum', None) is not None: return sum['value__sum']
 232         return 0
 233
 234     def get_flagged_items_count_today(self):
 235         today = datetime.date.today()
 236         return self.actions.filter(canceled=False, action_type="flag",
 237                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 238
 239     @true_if_is_super_or_staff
 240     def can_view_deleted_post(self, post):
 241         return post.author == self
 242
 243     @true_if_is_super_or_staff
 244     def can_vote_up(self):
 245         return self.reputation >= int(settings.REP_TO_VOTE_UP)
 246
 247     @true_if_is_super_or_staff
 248     def can_vote_down(self):
 249         return self.reputation >= int(settings.REP_TO_VOTE_DOWN)
 250
 251     @false_if_validation_required_to('flag')
 252     def can_flag_offensive(self, post=None):
 253         if post is not None and post.author == self:
 254             return False
 255         return self.is_superuser or self.is_staff or self.reputation >= int(settings.REP_TO_FLAG)
 256
 257     @true_if_is_super_or_staff
 258     def can_view_offensive_flags(self, post=None):
 259         if post is not None and post.author == self:
 260             return True
 261         return self.reputation >= int(settings.REP_TO_VIEW_FLAGS)
 262
 263     @true_if_is_super_or_staff
 264     @false_if_validation_required_to('comment')
 265     def can_comment(self, post):
 266         return self == post.author or self.reputation >= int(settings.REP_TO_COMMENT
 267                 ) or (post.__class__.__name__ == "Answer" and self == post.question.author)
 268
 269     @true_if_is_super_or_staff
 270     def can_like_comment(self, comment):
 271         return self != comment.author and (self.reputation >= int(settings.REP_TO_LIKE_COMMENT))
 272
 273     @true_if_is_super_or_staff
 274     def can_edit_comment(self, comment):
 275         return (comment.author == self and comment.added_at >= datetime.datetime.now() - datetime.timedelta(minutes=60)
 276         ) or self.is_superuser
 277
 278     @true_if_is_super_or_staff
 279     def can_delete_comment(self, comment):
 280         return self == comment.author or self.reputation >= int(settings.REP_TO_DELETE_COMMENTS)
 281
 282     @true_if_is_super_or_staff
 283     def can_convert_comment_to_answer(self, comment):
 284         return self == comment.author or self.reputation >= int(settings.REP_TO_CONVERT_COMMENTS_TO_ANSWERS)
 285
 286     def can_convert_to_comment(self, answer):
 287         return (not answer.marked) and (self.is_superuser or self.is_staff or answer.author == self or self.reputation >= int
 288                 (settings.REP_TO_CONVERT_TO_COMMENT))
 289
 290     def can_convert_to_question(self, answer):
 291         return (not answer.marked) and (self.is_superuser or self.is_staff or answer.author == self or self.reputation >= int
 292                 (settings.REP_TO_CONVERT_TO_QUESTION))
 293
 294     @true_if_is_super_or_staff
 295     def can_accept_answer(self, answer):
 296         return self == answer.question.author and (settings.USERS_CAN_ACCEPT_OWN or answer.author != answer.question.author)
 297
 298     @true_if_is_super_or_staff
 299     def can_create_tags(self):
 300         return self.reputation >= int(settings.REP_TO_CREATE_TAGS)
 301
 302     @true_if_is_super_or_staff
 303     def can_edit_post(self, post):
 304         return self == post.author or self.reputation >= int(settings.REP_TO_EDIT_OTHERS
 305                                                              ) or (post.nis.wiki and self.reputation >= int(
 306                 settings.REP_TO_EDIT_WIKI))
 307
 308     @true_if_is_super_or_staff
 309     def can_wikify(self, post):
 310         return self == post.author or self.reputation >= int(settings.REP_TO_WIKIFY)
 311
 312     @true_if_is_super_or_staff
 313     def can_cancel_wiki(self, post):
 314         return self == post.author
 315
 316     @true_if_is_super_or_staff
 317     def can_retag_questions(self):
 318         return self.reputation >= int(settings.REP_TO_RETAG)
 319
 320     @true_if_is_super_or_staff
 321     def can_close_question(self, question):
 322         return (self == question.author and self.reputation >= int(settings.REP_TO_CLOSE_OWN)
 323         ) or self.reputation >= int(settings.REP_TO_CLOSE_OTHERS)
 324
 325     @true_if_is_super_or_staff
 326     def can_reopen_question(self, question):
 327         return self == question.author and self.reputation >= int(settings.REP_TO_REOPEN_OWN)
 328
 329     @true_if_is_super_or_staff
 330     def can_delete_post(self, post):
 331         if post.node_type == "comment":
 332             return self.can_delete_comment(post)
 333
 334         return (self == post.author and (post.__class__.__name__ == "Answer" or
 335         not post.answers.exclude(author__id=self.id).count()))
 336
 337     @true_if_is_super_or_staff
 338     def can_upload_files(self):
 339         return self.reputation >= int(settings.REP_TO_UPLOAD)
 340
 341     @true_if_is_super_or_staff
 342     def is_a_super_user_or_staff(self):
 343         return False
 344
 345     def email_valid_and_can_ask(self):
 346         return 'ask' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 347
 348     def email_valid_and_can_answer(self):
 349         return 'answer' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 350
 351     def check_password(self, old_passwd):
 352         self.__dict__.update(self.__class__.objects.filter(id=self.id).values('password')[0])
 353         return DjangoUser.check_password(self, old_passwd)
 354
 355     @property
 356     def suspension(self):
 357         if self.__dict__.get('_suspension_dencache_', False) != None:
 358             try:
 359                 self.__dict__['_suspension_dencache_'] = self.reputes.get(action__action_type="suspend", action__canceled=False).action
 360             except ObjectDoesNotExist:
 361                 self.__dict__['_suspension_dencache_'] = None
 362             except MultipleObjectsReturned:
 363                 logging.error("Multiple suspension actions found for user %s (%s)" % (self.username, self.id))
 364                 self.__dict__['_suspension_dencache_'] = self.reputes.filter(action__action_type="suspend", action__canceled=False
 365                                                                              ).order_by('-action__action_date')[0]
 366
 367         return self.__dict__['_suspension_dencache_']
 368
 369     def _pop_suspension_cache(self):
 370         self.__dict__.pop('_suspension_dencache_', None)
 371
 372     def is_suspended(self):
 373         if not self.is_active:
 374             suspension = self.suspension
 375
 376             if suspension and suspension.extra.get('bantype', None) == 'forxdays' and (
 377             datetime.datetime.now() > suspension.action_date + datetime.timedelta(
 378                     days=int(suspension.extra.get('forxdays', 365)))):
 379                 suspension.cancel()
 380             else:
 381                 return True
 382
 383         return False
 384
 385     class Meta:
 386         app_label = 'forum'
 387
 388 class UserProperty(BaseModel):
 389     user = models.ForeignKey(User, related_name='properties')
 390     key = models.CharField(max_length=16)
 391     value = PickledObjectField()
 392
 393     class Meta:
 394         app_label = 'forum'
 395         unique_together = ('user', 'key')
 396
 397     def cache_key(self):
 398         return self._generate_cache_key("%s:%s" % (self.user.id, self.key))
 399
 400     @classmethod
 401     def infer_cache_key(cls, querydict):
 402         if 'user' in querydict and 'key' in querydict:
 403             return cls._generate_cache_key("%s:%s" % (querydict['user'].id, querydict['key']))
 404
 405         return None
 406
 407 class UserPropertyDict(object):
 408     def __init__(self, user):
 409         self.__dict__['_user'] = user
 410
 411     def __get_property(self, name):
 412         if self.__dict__.get('__%s__' % name, None):
 413             return self.__dict__['__%s__' % name]
 414         try:
 415             user = self.__dict__['_user']
 416             prop = UserProperty.objects.get(user=user, key=name)
 417             self.__dict__['__%s__' % name] = prop
 418             self.__dict__[name] = prop.value
 419             return prop
 420         except:
 421             return None
 422
 423
 424     def __getattr__(self, name):
 425         if self.__dict__.get(name, None):
 426             return self.__dict__[name]
 427
 428         prop = self.__get_property(name)
 429
 430         if prop:
 431             return prop.value
 432         else:
 433             return None
 434
 435     def __setattr__(self, name, value):
 436         current = self.__get_property(name)
 437
 438         if value is not None:
 439             if current:
 440                 current.value = value
 441                 self.__dict__[name] = value
 442                 current.save(full_save=True)
 443             else:
 444                 user = self.__dict__['_user']
 445                 prop = UserProperty(user=user, value=value, key=name)
 446                 prop.save()
 447                 self.__dict__[name] = value
 448                 self.__dict__['__%s__' % name] = prop
 449         else:
 450             if current:
 451                 current.delete()
 452                 del self.__dict__[name]
 453                 del self.__dict__['__%s__' % name]
 454
 455
 456 class SubscriptionSettings(models.Model):
 457     user = models.OneToOneField(User, related_name='subscription_settings', editable=False)
 458
 459     enable_notifications = models.BooleanField(default=True)
 460
 461     #notify if
 462     member_joins = models.CharField(max_length=1, default='n')
 463     new_question = models.CharField(max_length=1, default='n')
 464     new_question_watched_tags = models.CharField(max_length=1, default='i')
 465     subscribed_questions = models.CharField(max_length=1, default='i')
 466
 467     #auto_subscribe_to
 468     all_questions = models.BooleanField(default=False)
 469     all_questions_watched_tags = models.BooleanField(default=False)
 470     questions_asked = models.BooleanField(default=True)
 471     questions_answered = models.BooleanField(default=True)
 472     questions_commented = models.BooleanField(default=False)
 473     questions_viewed = models.BooleanField(default=False)
 474
 475     #notify activity on subscribed
 476     notify_answers = models.BooleanField(default=True)
 477     notify_reply_to_comments = models.BooleanField(default=True)
 478     notify_comments_own_post = models.BooleanField(default=True)
 479     notify_comments = models.BooleanField(default=False)
 480     notify_accepted = models.BooleanField(default=False)
 481
 482     send_digest = models.BooleanField(default=True)
 483
 484     class Meta:
 485         app_label = 'forum'
 486
 487 from forum.utils.time import one_day_from_now
 488
 489 class ValidationHashManager(models.Manager):
 490     def _generate_md5_hash(self, user, type, hash_data, seed):
 491         return md5("%s%s%s%s" % (seed, "".join(map(str, hash_data)), user.id, type)).hexdigest()
 492
 493     def create_new(self, user, type, hash_data=[], expiration=None):
 494         seed = ''.join(Random().sample(string.letters+string.digits, 12))
 495         hash = self._generate_md5_hash(user, type, hash_data, seed)
 496
 497         obj = ValidationHash(hash_code=hash, seed=seed, user=user, type=type)
 498
 499         if expiration is not None:
 500             obj.expiration = expiration
 501
 502         try:
 503             obj.save()
 504         except:
 505             return None
 506
 507         return obj
 508
 509     def validate(self, hash, user, type, hash_data=[]):
 510         try:
 511             obj = self.get(hash_code=hash)
 512         except:
 513             return False
 514
 515         if obj.type != type:
 516             return False
 517
 518         if obj.user != user:
 519             return False
 520
 521         valid = (obj.hash_code == self._generate_md5_hash(obj.user, type, hash_data, obj.seed))
 522
 523         if valid:
 524             if obj.expiration < datetime.datetime.now():
 525                 obj.delete()
 526                 return False
 527             else:
 528                 obj.delete()
 529                 return True
 530
 531         return False
 532
 533 class ValidationHash(models.Model):
 534     hash_code = models.CharField(max_length=255, unique=True)
 535     seed = models.CharField(max_length=12)
 536     expiration = models.DateTimeField(default=one_day_from_now)
 537     type = models.CharField(max_length=12)
 538     user = models.ForeignKey(User)
 539
 540     objects = ValidationHashManager()
 541
 542     class Meta:
 543         unique_together = ('user', 'type')
 544         app_label = 'forum'
 545
 546     def __str__(self):
 547         return self.hash_code
 548
 549 class AuthKeyUserAssociation(models.Model):
 550     key = models.CharField(max_length=255, null=False, unique=True)
 551     provider = models.CharField(max_length=64)
 552     user = models.ForeignKey(User, related_name="auth_keys")
 553     added_at = models.DateTimeField(default=datetime.datetime.now)
 554
 555     class Meta:
 556         app_label = 'forum'