django-orchestra/orchestra/apps/databases/models.py
2014-09-30 10:20:11 +00:00

93 lines
3 KiB
Python

import hashlib
from django.db import models
from django.utils.translation import ugettext_lazy as _
from orchestra.core import validators, services
from . import settings
class Database(models.Model):
""" Represents a basic database for a web application """
MYSQL = 'mysql'
POSTGRESQL = 'postgresql'
name = models.CharField(_("name"), max_length=128,
validators=[validators.validate_name])
users = models.ManyToManyField('databases.DatabaseUser',
verbose_name=_("users"),
through='databases.Role', related_name='users')
type = models.CharField(_("type"), max_length=32,
choices=settings.DATABASES_TYPE_CHOICES,
default=settings.DATABASES_DEFAULT_TYPE)
account = models.ForeignKey('accounts.Account', verbose_name=_("Account"),
related_name='databases')
class Meta:
unique_together = ('name', 'type')
def __unicode__(self):
return "%s" % self.name
@property
def owner(self):
self.users.get(is_owner=True)
class Role(models.Model):
database = models.ForeignKey(Database, verbose_name=_("database"),
related_name='roles')
user = models.ForeignKey('databases.DatabaseUser', verbose_name=_("user"),
related_name='roles')
is_owner = models.BooleanField(_("owner"), default=False)
class Meta:
unique_together = ('database', 'user')
def __unicode__(self):
return "%s@%s" % (self.user, self.database)
def clean(self):
if self.user.type != self.database.type:
msg = _("Database and user type doesn't match")
raise validators.ValidationError(msg)
class DatabaseUser(models.Model):
MYSQL = 'mysql'
POSTGRESQL = 'postgresql'
username = models.CharField(_("username"), max_length=128,
validators=[validators.validate_name])
password = models.CharField(_("password"), max_length=128)
type = models.CharField(_("type"), max_length=32,
choices=settings.DATABASES_TYPE_CHOICES,
default=settings.DATABASES_DEFAULT_TYPE)
account = models.ForeignKey('accounts.Account', verbose_name=_("Account"),
related_name='databaseusers')
class Meta:
verbose_name_plural = _("DB users")
unique_together = ('username', 'type')
def __unicode__(self):
return self.username
def get_username(self):
return self.username
def set_password(self, password):
if self.type == self.MYSQL:
# MySQL stores sha1(sha1(password).binary).hex
binary = hashlib.sha1(password).digest()
hexdigest = hashlib.sha1(binary).hexdigest()
password = '*%s' % hexdigest.upper()
self.password = password
else:
raise TypeError("Database type '%s' not supported" % self.type)
services.register(Database)
services.register(DatabaseUser, verbose_name_plural=_("Database users"))