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