gremmie@1: """Contains models for the accounts application"""
gremmie@1: 
gremmie@1: import datetime
gremmie@1: import random
gremmie@1: import string
gremmie@1: import hashlib
gremmie@1: import base64
gremmie@1: 
gremmie@1: from django.db import models
gremmie@1: from django.contrib import auth
gremmie@1: from django.conf import settings
gremmie@1: 
gremmie@1: 
gremmie@1: class IllegalUsername(models.Model):
gremmie@1:    """model to represent the list of illegal usernames"""
gremmie@1:    username = models.CharField(max_length = 30, db_index = True)
gremmie@1: 
gremmie@1:    def __unicode__(self):
gremmie@1:       return self.username
gremmie@1: 
gremmie@1:    class Meta:
gremmie@1:       ordering = ('username', )
gremmie@1: 
gremmie@1: 
gremmie@1: class IllegalEmail(models.Model):
gremmie@1:    """model to represent the list of illegal/restricted email addresses"""
gremmie@1:    email = models.EmailField(db_index = True)
gremmie@1: 
gremmie@1:    def __unicode__(self):
gremmie@1:       return self.email
gremmie@1: 
gremmie@1:    class Meta:
gremmie@1:       ordering = ('email', )
gremmie@1: 
gremmie@1: 
gremmie@1: class PendingUserManager(models.Manager):
gremmie@1:    """user manager for PendingUser model"""
gremmie@1: 
gremmie@1:    create_count = 0
gremmie@1: 
gremmie@1:    def create_pending_user(self, username, email, password):
gremmie@1:       '''creates a new pending user and saves it to the database'''
gremmie@1: 
gremmie@1:       temp_user = auth.models.User()
gremmie@1:       temp_user.set_password(password)
gremmie@1: 
gremmie@1:       now = datetime.datetime.now() 
gremmie@1:       pending_user = self.model(None, 
gremmie@1:             username, 
gremmie@1:             email, 
gremmie@1:             temp_user.password, 
gremmie@1:             now, 
gremmie@1:             self._make_key())
gremmie@1: 
gremmie@1:       pending_user.save()
gremmie@1:       self.create_count += 1
gremmie@1:       return pending_user
gremmie@1: 
gremmie@1: 
gremmie@1:    def purge_expired(self):
gremmie@1:       expire_time = datetime.datetime.now() - datetime.timedelta(days = 1)
gremmie@1:       expired_pending_users = self.filter(date_joined__lt = expire_time)
gremmie@1:       expired_pending_users.delete()
gremmie@1: 
gremmie@1: 
gremmie@1:    def _make_key(self):
gremmie@1:       s = ''.join(random.sample(string.printable, 8))
gremmie@1:       delta = datetime.date.today() - datetime.date(1846, 12, 28)
gremmie@1:       days = base64.urlsafe_b64encode(str(delta * 10))
gremmie@1:       key = hashlib.sha1(settings.SECRET_KEY +
gremmie@1:          unicode(self.create_count) +
gremmie@1:          unicode(s) +
gremmie@1:          unicode(days)).hexdigest()[::2]
gremmie@1:       return key
gremmie@1: 
gremmie@1: 
gremmie@1: class PendingUser(models.Model):
gremmie@1:    """model for holding users while they go through the email registration cycle"""
gremmie@1: 
gremmie@1:    username = models.CharField(max_length = 30, db_index = True)
gremmie@1:    email = models.EmailField()
gremmie@1:    password = models.CharField(max_length = 128)
gremmie@1:    date_joined = models.DateTimeField(default = datetime.datetime.now, db_index = True)
gremmie@1:    key = models.CharField(max_length = 20, editable = True)
gremmie@1: 
gremmie@1:    objects = PendingUserManager()
gremmie@1: 
gremmie@1:    def __unicode__(self):
gremmie@1:       return self.username
gremmie@1: