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