Synnefo » Pithos

# Copyright 2011 GRNET S.A. All rights reserved.

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# Redistribution and use in source and binary forms, with or

# without modification, are permitted provided that the following

# conditions are met:

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#   1. Redistributions of source code must retain the above

#      copyright notice, this list of conditions and the following

#      disclaimer.

# 

#   2. Redistributions in binary form must reproduce the above

#      copyright notice, this list of conditions and the following

#      disclaimer in the documentation and/or other materials

#      provided with the distribution.

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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

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import logging

import hashlib

from time import asctime

from datetime import datetime, timedelta

from base64 import b64encode

from django.conf import settings

from django.db import models

class User(models.Model):

    ACCOUNT_STATE = (

        ('ACTIVE', 'Active'),

        ('DELETED', 'Deleted'),

        ('SUSPENDED', 'Suspended')

    )

    uniq = models.CharField('Unique ID', max_length=255, null=True)

    realname = models.CharField('Real Name', max_length=255, default='')

    email = models.CharField('Email', max_length=255, default='')

    affiliation = models.CharField('Affiliation', max_length=255, default='')

    state = models.CharField('Account state', choices=ACCOUNT_STATE,

                                max_length=16, default='ACTIVE')

    level = models.IntegerField('Inviter level', default=4)

    invitations = models.IntegerField('Invitations left', default=0)

    is_admin = models.BooleanField('Admin?', default=False)

    auth_token = models.CharField('Authentication Token', max_length=32,

                                    null=True, blank=True)

    auth_token_created = models.DateTimeField('Token creation date',

                                                null=True)

    auth_token_expires = models.DateTimeField('Token expiration date',

                                                null=True)

    created = models.DateTimeField('Creation date')

    updated = models.DateTimeField('Update date')

    @property

    def quota(self):

        return settings.DEFAULT_QUOTA

    @quota.setter

    def quota(self, value):

        logging.debug('Set quota to: %s', value)

    def save(self, update_timestamps=True, **kwargs):

        if update_timestamps:

            if not self.id:

                self.created = datetime.now()

            self.updated = datetime.now()

        super(User, self).save(**kwargs)

    def renew_token(self):

        md5 = hashlib.md5()

        md5.update(self.uniq)

        md5.update(self.realname.encode('ascii', 'ignore'))

        md5.update(asctime())

        self.auth_token = b64encode(md5.digest())

        self.auth_token_created = datetime.now()

        self.auth_token_expires = self.auth_token_created + \

                                  timedelta(hours=settings.AUTH_TOKEN_DURATION)

    def __unicode__(self):

        return self.uniq

class Invitation(models.Model):

    inviter = models.ForeignKey(User, related_name='invitations_sent',

                                null=True)

    realname = models.CharField('Real name', max_length=255)

    uniq = models.CharField('Real name', max_length=255)

    code = models.BigIntegerField('Invitation code', db_index=True)

    is_accepted = models.BooleanField('Accepted?', default=False)

    created = models.DateTimeField('Creation date', auto_now_add=True)

    accepted = models.DateTimeField('Acceptance date', null=True, blank=True)

    def __unicode__(self):

        return '%s -> %s [%d]' % (self.inviter, self.uniq, self.code)