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_to_question(self, answer):
  59         return False
  60
  61     def can_convert_comment_to_answer(self, comment):
  62         return False
  63
  64     def can_accept_answer(self, answer):
  65         return False
  66
  67     def can_create_tags(self):
  68         return False
  69
  70     def can_edit_post(self, post):
  71         return False
  72
  73     def can_wikify(self, post):
  74         return False
  75
  76     def can_cancel_wiki(self, post):
  77         return False
  78
  79     def can_retag_questions(self):
  80         return False
  81
  82     def can_close_question(self, question):
  83         return False
  84
  85     def can_reopen_question(self, question):
  86         return False
  87
  88     def can_delete_post(self, post):
  89         return False
  90
  91     def can_upload_files(self):
  92         return False
  93
  94     def is_a_super_user_or_staff(self):
  95         return False
  96
  97 def true_if_is_super_or_staff(fn):
  98     def decorated(self, *args, **kwargs):
  99         return self.is_superuser or self.is_staff or fn(self, *args, **kwargs)
 100
 101     return decorated
 102
 103 def false_if_validation_required_to(item):
 104     def decorator(fn):
 105         def decorated(self, *args, **kwargs):
 106             if item in settings.REQUIRE_EMAIL_VALIDATION_TO and not self.email_isvalid:
 107                 return False
 108             else:
 109                 return fn(self, *args, **kwargs)
 110         return decorated
 111     return decorator
 112
 113 class User(BaseModel, DjangoUser):
 114     is_approved = models.BooleanField(default=False)
 115     email_isvalid = models.BooleanField(default=False)
 116
 117     reputation = models.PositiveIntegerField(default=0)
 118     gold = models.PositiveIntegerField(default=0)
 119     silver = models.PositiveIntegerField(default=0)
 120     bronze = models.PositiveIntegerField(default=0)
 121
 122     last_seen = models.DateTimeField(default=datetime.datetime.now)
 123     real_name = models.CharField(max_length=100, blank=True)
 124     website = models.URLField(max_length=200, blank=True)
 125     location = models.CharField(max_length=100, blank=True)
 126     date_of_birth = models.DateField(null=True, blank=True)
 127     about = models.TextField(blank=True)
 128
 129     subscriptions = models.ManyToManyField('Node', related_name='subscribers', through='QuestionSubscription')
 130
 131     vote_up_count = DenormalizedField("actions", canceled=False, action_type="voteup")
 132     vote_down_count = DenormalizedField("actions", canceled=False, action_type="votedown")
 133
 134     def __unicode__(self):
 135         return self.username
 136
 137     @property
 138     def prop(self):
 139         prop = self.__dict__.get('_prop', None)
 140
 141         if prop is None:
 142             prop = UserPropertyDict(self)
 143             self._prop = prop
 144
 145         return prop
 146
 147     @property
 148     def is_siteowner(self):
 149         #todo: temporary thing, for now lets just assume that the site owner will always be the first user of the application
 150         return self.id == 1
 151
 152     @property
 153     def decorated_name(self):
 154         if settings.SHOW_STATUS_DIAMONDS:
 155             if self.is_superuser:
 156                 return u"%s \u2666\u2666" % self.username
 157
 158             if self.is_staff:
 159                 return u"%s \u2666" % self.username
 160
 161         return self.username
 162
 163     @property
 164     def last_activity(self):
 165         try:
 166             return self.actions.order_by('-action_date')[0].action_date
 167         except:
 168             return self.last_seen
 169
 170     @property
 171     def gravatar(self):
 172         return md5(self.email.lower()).hexdigest()
 173
 174     def save(self, *args, **kwargs):
 175         if self.reputation < 0:
 176             self.reputation = 0
 177
 178         new = not bool(self.id)
 179
 180         super(User, self).save(*args, **kwargs)
 181
 182         if new:
 183             sub_settings = SubscriptionSettings(user=self)
 184             sub_settings.save()
 185
 186     def get_absolute_url(self):
 187         return self.get_profile_url()
 188
 189     def get_messages(self):
 190         messages = []
 191         for m in self.message_set.all():
 192             messages.append(m.message)
 193         return messages
 194
 195     def delete_messages(self):
 196         self.message_set.all().delete()
 197
 198     @models.permalink
 199     def get_profile_url(self):
 200         return ('user_profile', (), {'id': self.id, 'slug': slugify(self.username)})
 201
 202     def get_absolute_url(self):
 203         return self.get_profile_url()
 204
 205     @models.permalink
 206     def get_asked_url(self):
 207         return ('user_questions', (), {'mode': _('asked-by'), 'user': self.id, 'slug': slugify(self.username)})
 208
 209     @models.permalink
 210     def get_answered_url(self):
 211         return ('user_questions', (), {'mode': _('answered-by'), 'user': self.id, 'slug': slugify(self.username)})
 212
 213     @models.permalink
 214     def get_subscribed_url(self):
 215         return ('user_questions', (), {'mode': _('subscribed-by'), 'user': self.id, 'slug': slugify(self.username)})
 216
 217     def get_profile_link(self):
 218         profile_link = u'<a href="%s">%s</a>' % (self.get_profile_url(), self.username)
 219         return mark_safe(profile_link)
 220
 221     def get_visible_answers(self, question):
 222         return question.answers.filter_state(deleted=False)
 223
 224     def get_vote_count_today(self):
 225         today = datetime.date.today()
 226         return self.actions.filter(canceled=False, action_type__in=("voteup", "votedown"),
 227                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 228
 229     def get_reputation_by_upvoted_today(self):
 230         today = datetime.datetime.now()
 231         sum = self.reputes.filter(reputed_at__range=(today - datetime.timedelta(days=1), today)).aggregate(
 232                 models.Sum('value'))
 233         #todo: redo this, maybe transform in the daily cap
 234         #if sum.get('value__sum', None) is not None: return sum['value__sum']
 235         return 0
 236
 237     def get_flagged_items_count_today(self):
 238         today = datetime.date.today()
 239         return self.actions.filter(canceled=False, action_type="flag",
 240                                    action_date__gte=(today - datetime.timedelta(days=1))).count()
 241
 242     @true_if_is_super_or_staff
 243     def can_view_deleted_post(self, post):
 244         return post.author == self
 245
 246     @true_if_is_super_or_staff
 247     def can_vote_up(self):
 248         return self.reputation >= int(settings.REP_TO_VOTE_UP)
 249
 250     @true_if_is_super_or_staff
 251     def can_vote_down(self):
 252         return self.reputation >= int(settings.REP_TO_VOTE_DOWN)
 253
 254     @false_if_validation_required_to('flag')
 255     def can_flag_offensive(self, post=None):
 256         if post is not None and post.author == self:
 257             return False
 258         return self.is_superuser or self.is_staff or self.reputation >= int(settings.REP_TO_FLAG)
 259
 260     @true_if_is_super_or_staff
 261     def can_view_offensive_flags(self, post=None):
 262         if post is not None and post.author == self:
 263             return True
 264         return self.reputation >= int(settings.REP_TO_VIEW_FLAGS)
 265
 266     @true_if_is_super_or_staff
 267     @false_if_validation_required_to('comment')
 268     def can_comment(self, post):
 269         return self == post.author or self.reputation >= int(settings.REP_TO_COMMENT
 270                 ) or (post.__class__.__name__ == "Answer" and self == post.question.author)
 271
 272     @true_if_is_super_or_staff
 273     def can_like_comment(self, comment):
 274         return self != comment.author and (self.reputation >= int(settings.REP_TO_LIKE_COMMENT))
 275
 276     @true_if_is_super_or_staff
 277     def can_edit_comment(self, comment):
 278         return (comment.author == self and comment.added_at >= datetime.datetime.now() - datetime.timedelta(minutes=60)
 279         ) or self.is_superuser
 280
 281     @true_if_is_super_or_staff
 282     def can_delete_comment(self, comment):
 283         return self == comment.author or self.reputation >= int(settings.REP_TO_DELETE_COMMENTS)
 284
 285     @true_if_is_super_or_staff
 286     def can_convert_comment_to_answer(self, comment):
 287         return self == comment.author or self.reputation >= int(settings.REP_TO_CONVERT_COMMENTS_TO_ANSWERS)
 288
 289     def can_convert_to_comment(self, answer):
 290         return (not answer.marked) and (self.is_superuser or self.is_staff or answer.author == self or self.reputation >= int
 291                 (settings.REP_TO_CONVERT_TO_COMMENT))
 292
 293     def can_convert_to_question(self, answer):
 294         return (not answer.marked) and (self.is_superuser or self.is_staff or answer.author == self or self.reputation >= int
 295                 (settings.REP_TO_CONVERT_TO_QUESTION))
 296
 297     @true_if_is_super_or_staff
 298     def can_accept_answer(self, answer):
 299         return self == answer.question.author and (settings.USERS_CAN_ACCEPT_OWN or answer.author != answer.question.author)
 300
 301     @true_if_is_super_or_staff
 302     def can_create_tags(self):
 303         return self.reputation >= int(settings.REP_TO_CREATE_TAGS)
 304
 305     @true_if_is_super_or_staff
 306     def can_edit_post(self, post):
 307         return self == post.author or self.reputation >= int(settings.REP_TO_EDIT_OTHERS
 308                                                              ) or (post.nis.wiki and self.reputation >= int(
 309                 settings.REP_TO_EDIT_WIKI))
 310
 311     @true_if_is_super_or_staff
 312     def can_wikify(self, post):
 313         return self == post.author or self.reputation >= int(settings.REP_TO_WIKIFY)
 314
 315     @true_if_is_super_or_staff
 316     def can_cancel_wiki(self, post):
 317         return self == post.author
 318
 319     @true_if_is_super_or_staff
 320     def can_retag_questions(self):
 321         return self.reputation >= int(settings.REP_TO_RETAG)
 322
 323     @true_if_is_super_or_staff
 324     def can_close_question(self, question):
 325         return (self == question.author and self.reputation >= int(settings.REP_TO_CLOSE_OWN)
 326         ) or self.reputation >= int(settings.REP_TO_CLOSE_OTHERS)
 327
 328     @true_if_is_super_or_staff
 329     def can_reopen_question(self, question):
 330         return self == question.author and self.reputation >= int(settings.REP_TO_REOPEN_OWN)
 331
 332     @true_if_is_super_or_staff
 333     def can_delete_post(self, post):
 334         if post.node_type == "comment":
 335             return self.can_delete_comment(post)
 336
 337         return (self == post.author and (post.__class__.__name__ == "Answer" or
 338         not post.answers.exclude(author__id=self.id).count()))
 339
 340     @true_if_is_super_or_staff
 341     def can_upload_files(self):
 342         return self.reputation >= int(settings.REP_TO_UPLOAD)
 343
 344     @true_if_is_super_or_staff
 345     def is_a_super_user_or_staff(self):
 346         return False
 347
 348     def email_valid_and_can_ask(self):
 349         return 'ask' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 350
 351     def email_valid_and_can_answer(self):
 352         return 'answer' not in settings.REQUIRE_EMAIL_VALIDATION_TO or self.email_isvalid
 353
 354     def check_password(self, old_passwd):
 355         self.__dict__.update(self.__class__.objects.filter(id=self.id).values('password')[0])
 356         return DjangoUser.check_password(self, old_passwd)
 357
 358     @property
 359     def suspension(self):
 360         if self.__dict__.get('_suspension_dencache_', False) != None:
 361             try:
 362                 self.__dict__['_suspension_dencache_'] = self.reputes.get(action__action_type="suspend", action__canceled=False).action
 363             except ObjectDoesNotExist:
 364                 self.__dict__['_suspension_dencache_'] = None
 365             except MultipleObjectsReturned:
 366                 logging.error("Multiple suspension actions found for user %s (%s)" % (self.username, self.id))
 367                 self.__dict__['_suspension_dencache_'] = self.reputes.filter(action__action_type="suspend", action__canceled=False
 368                                                                              ).order_by('-action__action_date')[0]
 369
 370         return self.__dict__['_suspension_dencache_']
 371
 372     def _pop_suspension_cache(self):
 373         self.__dict__.pop('_suspension_dencache_', None)
 374
 375     def is_suspended(self):
 376         if not self.is_active:
 377             suspension = self.suspension
 378
 379             if suspension and suspension.extra.get('bantype', None) == 'forxdays' and (
 380             datetime.datetime.now() > suspension.action_date + datetime.timedelta(
 381                     days=int(suspension.extra.get('forxdays', 365)))):
 382                 suspension.cancel()
 383             else:
 384                 return True
 385
 386         return False
 387
 388     class Meta:
 389         app_label = 'forum'
 390
 391 class UserProperty(BaseModel):
 392     user = models.ForeignKey(User, related_name='properties')
 393     key = models.CharField(max_length=16)
 394     value = PickledObjectField()
 395
 396     class Meta:
 397         app_label = 'forum'
 398         unique_together = ('user', 'key')
 399
 400     def cache_key(self):
 401         return self._generate_cache_key("%s:%s" % (self.user.id, self.key))
 402
 403     @classmethod
 404     def infer_cache_key(cls, querydict):
 405         if 'user' in querydict and 'key' in querydict:
 406             return cls._generate_cache_key("%s:%s" % (querydict['user'].id, querydict['key']))
 407
 408         return None
 409
 410 class UserPropertyDict(object):
 411     def __init__(self, user):
 412         self.__dict__['_user'] = user
 413
 414     def __get_property(self, name):
 415         if self.__dict__.get('__%s__' % name, None):
 416             return self.__dict__['__%s__' % name]
 417         try:
 418             user = self.__dict__['_user']
 419             prop = UserProperty.objects.get(user=user, key=name)
 420             self.__dict__['__%s__' % name] = prop
 421             self.__dict__[name] = prop.value
 422             return prop
 423         except:
 424             return None
 425
 426
 427     def __getattr__(self, name):
 428         if self.__dict__.get(name, None):
 429             return self.__dict__[name]
 430
 431         prop = self.__get_property(name)
 432
 433         if prop:
 434             return prop.value
 435         else:
 436             return None
 437
 438     def __setattr__(self, name, value):
 439         current = self.__get_property(name)
 440
 441         if value is not None:
 442             if current:
 443                 current.value = value
 444                 self.__dict__[name] = value
 445                 current.save(full_save=True)
 446             else:
 447                 user = self.__dict__['_user']
 448                 prop = UserProperty(user=user, value=value, key=name)
 449                 prop.save()
 450                 self.__dict__[name] = value
 451                 self.__dict__['__%s__' % name] = prop
 452         else:
 453             if current:
 454                 current.delete()
 455                 del self.__dict__[name]
 456                 del self.__dict__['__%s__' % name]
 457
 458
 459 class SubscriptionSettings(models.Model):
 460     user = models.OneToOneField(User, related_name='subscription_settings', editable=False)
 461
 462     enable_notifications = models.BooleanField(default=True)
 463
 464     #notify if
 465     member_joins = models.CharField(max_length=1, default='n')
 466     new_question = models.CharField(max_length=1, default='n')
 467     new_question_watched_tags = models.CharField(max_length=1, default='i')
 468     subscribed_questions = models.CharField(max_length=1, default='i')
 469
 470     #auto_subscribe_to
 471     all_questions = models.BooleanField(default=False)
 472     all_questions_watched_tags = models.BooleanField(default=False)
 473     questions_asked = models.BooleanField(default=True)
 474     questions_answered = models.BooleanField(default=True)
 475     questions_commented = models.BooleanField(default=False)
 476     questions_viewed = models.BooleanField(default=False)
 477
 478     #notify activity on subscribed
 479     notify_answers = models.BooleanField(default=True)
 480     notify_reply_to_comments = models.BooleanField(default=True)
 481     notify_comments_own_post = models.BooleanField(default=True)
 482     notify_comments = models.BooleanField(default=False)
 483     notify_accepted = models.BooleanField(default=False)
 484
 485     send_digest = models.BooleanField(default=True)
 486
 487     class Meta:
 488         app_label = 'forum'
 489
 490 from forum.utils.time import one_day_from_now
 491
 492 class ValidationHashManager(models.Manager):
 493     def _generate_md5_hash(self, user, type, hash_data, seed):
 494         return md5("%s%s%s%s" % (seed, "".join(map(str, hash_data)), user.id, type)).hexdigest()
 495
 496     def create_new(self, user, type, hash_data=[], expiration=None):
 497         seed = ''.join(Random().sample(string.letters+string.digits, 12))
 498         hash = self._generate_md5_hash(user, type, hash_data, seed)
 499
 500         obj = ValidationHash(hash_code=hash, seed=seed, user=user, type=type)
 501
 502         if expiration is not None:
 503             obj.expiration = expiration
 504
 505         try:
 506             obj.save()
 507         except:
 508             return None
 509
 510         return obj
 511
 512     def validate(self, hash, user, type, hash_data=[]):
 513         try:
 514             obj = self.get(hash_code=hash)
 515         except:
 516             return False
 517
 518         if obj.type != type:
 519             return False
 520
 521         if obj.user != user:
 522             return False
 523
 524         valid = (obj.hash_code == self._generate_md5_hash(obj.user, type, hash_data, obj.seed))
 525
 526         if valid:
 527             if obj.expiration < datetime.datetime.now():
 528                 obj.delete()
 529                 return False
 530             else:
 531                 obj.delete()
 532                 return True
 533
 534         return False
 535
 536 class ValidationHash(models.Model):
 537     hash_code = models.CharField(max_length=255, unique=True)
 538     seed = models.CharField(max_length=12)
 539     expiration = models.DateTimeField(default=one_day_from_now)
 540     type = models.CharField(max_length=12)
 541     user = models.ForeignKey(User)
 542
 543     objects = ValidationHashManager()
 544
 545     class Meta:
 546         unique_together = ('user', 'type')
 547         app_label = 'forum'
 548
 549     def __str__(self):
 550         return self.hash_code
 551
 552 class AuthKeyUserAssociation(models.Model):
 553     key = models.CharField(max_length=255, null=False, unique=True)
 554     provider = models.CharField(max_length=64)
 555     user = models.ForeignKey(User, related_name="auth_keys")
 556     added_at = models.DateTimeField(default=datetime.datetime.now)
 557
 558     class Meta:
 559         app_label = 'forum'