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