root / astakos / im / models.py @ ca96a346
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# Copyright 2011-2012 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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import hashlib |
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import uuid |
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from time import asctime |
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from datetime import datetime, timedelta |
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from base64 import b64encode |
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from django.db import models |
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from django.contrib.auth.models import User, UserManager |
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from astakos.im.interface import get_quota, set_quota |
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from astakos.im.settings import DEFAULT_USER_LEVEL, INVITATIONS_PER_LEVEL, AUTH_TOKEN_DURATION |
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class AstakosUser(User): |
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"""
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Extends ``django.contrib.auth.models.User`` by defining additional fields.
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"""
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# Use UserManager to get the create_user method, etc.
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objects = UserManager() |
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affiliation = models.CharField('Affiliation', max_length=255, blank=True) |
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provider = models.CharField('Provider', max_length=255, blank=True) |
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#for invitations
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user_level = DEFAULT_USER_LEVEL |
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level = models.IntegerField('Inviter level', default=user_level)
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invitations = models.IntegerField('Invitations left', default=INVITATIONS_PER_LEVEL[user_level])
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auth_token = models.CharField('Authentication Token', max_length=32, |
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null=True, blank=True) |
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auth_token_created = models.DateTimeField('Token creation date', null=True) |
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auth_token_expires = models.DateTimeField('Token expiration date', null=True) |
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updated = models.DateTimeField('Update date')
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is_verified = models.BooleanField('Is verified?', default=False) |
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# ex. screen_name for twitter, eppn for shibboleth
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third_party_identifier = models.CharField('Third-party identifier', max_length=255, null=True, blank=True) |
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@property
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def realname(self): |
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return '%s %s' %(self.first_name, self.last_name) |
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@realname.setter
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def realname(self, value): |
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parts = value.split(' ')
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if len(parts) == 2: |
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self.first_name = parts[0] |
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self.last_name = parts[1] |
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else:
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self.last_name = parts[0] |
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@property
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def quota(self): |
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return get_quota(self.username) |
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@quota.setter
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def quota(self, value): |
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set_quota(self.username, value)
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@property
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def invitation(self): |
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try:
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return Invitation.objects.get(username=self.email) |
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except Invitation.DoesNotExist:
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return None |
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def save(self, update_timestamps=True, **kwargs): |
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if update_timestamps:
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if not self.id: |
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# set username
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while not self.username: |
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username = uuid.uuid4().hex[:30]
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try:
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AstakosUser.objects.get(username = username) |
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except AstakosUser.DoesNotExist, e:
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self.username = username
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self.is_active = False |
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if not self.provider: |
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self.provider = 'local' |
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self.date_joined = datetime.now()
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self.updated = datetime.now()
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super(AstakosUser, self).save(**kwargs) |
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def renew_token(self): |
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md5 = hashlib.md5() |
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md5.update(self.username)
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md5.update(self.realname.encode('ascii', 'ignore')) |
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md5.update(asctime()) |
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self.auth_token = b64encode(md5.digest())
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self.auth_token_created = datetime.now()
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self.auth_token_expires = self.auth_token_created + \ |
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timedelta(hours=AUTH_TOKEN_DURATION) |
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def __unicode__(self): |
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return self.username |
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class Invitation(models.Model): |
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"""
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Model for registring invitations
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"""
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inviter = models.ForeignKey(AstakosUser, related_name='invitations_sent',
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null=True)
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realname = models.CharField('Real name', max_length=255) |
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username = models.CharField('Unique ID', max_length=255) |
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code = models.BigIntegerField('Invitation code', db_index=True) |
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#obsolete: we keep it just for transfering the data
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is_accepted = models.BooleanField('Accepted?', default=False) |
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is_consumed = models.BooleanField('Consumed?', default=False) |
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created = models.DateTimeField('Creation date', auto_now_add=True) |
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#obsolete: we keep it just for transfering the data
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accepted = models.DateTimeField('Acceptance date', null=True, blank=True) |
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consumed = models.DateTimeField('Consumption date', null=True, blank=True) |
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def consume(self): |
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self.is_consumed = True |
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self.consumed = datetime.now()
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self.save()
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def __unicode__(self): |
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return '%s -> %s [%d]' % (self.inviter, self.username, self.code) |