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django/django/models/auth.py

288 lines
11 KiB
Python

from django.core import meta, validators
from django.models import core
class Permission(meta.Model):
fields = (
meta.CharField('name', maxlength=50),
meta.ForeignKey(core.Package, name='package'),
meta.CharField('codename', maxlength=100),
)
unique_together = (('package', 'codename'),)
ordering = ('package', 'codename')
def __repr__(self):
return "%s | %s" % (self.package, self.name)
class Group(meta.Model):
fields = (
meta.CharField('name', maxlength=80, unique=True),
meta.ManyToManyField(Permission, blank=True, filter_interface=meta.HORIZONTAL),
)
ordering = ('name',)
admin = meta.Admin(
search_fields = ('name',),
)
def __repr__(self):
return self.name
class User(meta.Model):
fields = (
meta.CharField('username', maxlength=30, unique=True,
validator_list=[validators.isAlphaNumeric]),
meta.CharField('first_name', maxlength=30, blank=True),
meta.CharField('last_name', maxlength=30, blank=True),
meta.EmailField('email', 'e-mail address', blank=True),
meta.CharField('password_md5', 'password', maxlength=32, help_text="Use an MD5 hash -- not the raw password."),
meta.BooleanField('is_staff', 'staff status',
help_text="Designates whether the user can log into this admin site."),
meta.BooleanField('is_active', 'active', default=True),
meta.BooleanField('is_superuser', 'superuser status'),
meta.DateTimeField('last_login', default=meta.LazyDate()),
meta.DateTimeField('date_joined', default=meta.LazyDate()),
meta.ManyToManyField(Group, blank=True,
help_text="In addition to the permissions manually assigned, this user will also get all permissions granted to each group he/she is in."),
meta.ManyToManyField(Permission, name='user_permissions', blank=True, filter_interface=meta.HORIZONTAL),
)
ordering = ('username',)
exceptions = ('SiteProfileNotAvailable',)
admin = meta.Admin(
fields = (
(None, {'fields': ('username', 'password_md5')}),
('Personal info', {'fields': ('first_name', 'last_name', 'email')}),
('Permissions', {'fields': ('is_staff', 'is_active', 'is_superuser', 'user_permissions')}),
('Important dates', {'fields': ('last_login', 'date_joined')}),
('Groups', {'fields': ('groups',)}),
),
list_display = ('username', 'email', 'first_name', 'last_name', 'is_staff'),
list_filter = ('is_staff', 'is_superuser'),
search_fields = ('username', 'first_name', 'last_name', 'email'),
)
def __repr__(self):
return self.username
def get_absolute_url(self):
return "/users/%s/" % self.username
def is_anonymous(self):
return False
def get_full_name(self):
full_name = '%s %s' % (self.first_name, self.last_name)
return full_name.strip()
def set_password(self, raw_password):
import md5
self.password_md5 = md5.new(raw_password).hexdigest()
def check_password(self, raw_password):
"Returns a boolean of whether the raw_password was correct."
import md5
return self.password_md5 == md5.new(raw_password).hexdigest()
def get_group_permissions(self):
"Returns a list of permission strings that this user has through his/her groups."
if not hasattr(self, '_group_perm_cache'):
import sets
cursor = db.cursor()
cursor.execute("""
SELECT p.package, p.codename
FROM auth_permissions p, auth_groups_permissions gp, auth_users_groups ug
WHERE p.id = gp.permission_id
AND gp.group_id = ug.group_id
AND ug.user_id = %s""", [self.id])
self._group_perm_cache = sets.Set(["%s.%s" % (row[0], row[1]) for row in cursor.fetchall()])
return self._group_perm_cache
def get_all_permissions(self):
if not hasattr(self, '_perm_cache'):
import sets
self._perm_cache = sets.Set(["%s.%s" % (p.package, p.codename) for p in self.get_permission_list()])
self._perm_cache.update(self.get_group_permissions())
return self._perm_cache
def has_perm(self, perm):
"Returns True if the user has the specified permission."
if not self.is_active:
return False
if self.is_superuser:
return True
return perm in self.get_all_permissions()
def has_perms(self, perm_list):
"Returns True if the user has each of the specified permissions."
for perm in perm_list:
if not self.has_perm(perm):
return False
return True
def has_module_perms(self, package_name):
"Returns True if the user has any permissions in the given package."
if self.is_superuser:
return True
return bool(len([p for p in self.get_all_permissions() if p[:p.index('.')] == package_name]))
def get_and_delete_messages(self):
messages = []
for m in self.get_message_list():
messages.append(m.message)
m.delete()
return messages
def email_user(self, subject, message, from_email=None):
"Sends an e-mail to this User."
from django.core.mail import send_mail
send_mail(subject, message, from_email, [self.email])
def get_profile(self):
"""
Returns site-specific profile for this user. Raises
SiteProfileNotAvailable if this site does not allow profiles.
"""
if not hasattr(self, '_profile_cache'):
from django.conf.settings import AUTH_PROFILE_MODULE
if not AUTH_PROFILE_MODULE:
raise SiteProfileNotAvailable
try:
app, mod = AUTH_PROFILE_MODULE.split('.')
module = __import__('ellington.%s.apps.%s' % (app, mod), [], [], [''])
self._profile_cache = module.get_object(user_id=self.id)
except ImportError:
try:
module = __import__('django.models.%s' % AUTH_PROFILE_MODULE, [], [], [''])
self._profile_cache = module.get_object(user_id__exact=self.id)
except ImportError:
raise SiteProfileNotAvailable
return self._profile_cache
def _module_create_user(username, email, password):
"Creates and saves a User with the given username, e-mail and password."
import md5
password_md5 = md5.new(password).hexdigest()
now = datetime.datetime.now()
user = User(None, username, '', '', email.strip().lower(), password_md5, False, True, False, now, now)
user.save()
return user
def _module_make_random_password(length=10, allowed_chars='abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789'):
"Generates a random password with the given length and given allowed_chars"
# Note that default value of allowed_chars does not have "I" or letters
# that look like it -- just to avoid confusion.
from random import choice
return ''.join([choice(allowed_chars) for i in range(length)])
class Session(meta.Model):
fields = (
meta.ForeignKey(User),
meta.CharField('session_md5', maxlength=32),
meta.DateTimeField('start_time', auto_now=True),
)
module_constants = {
'TEST_COOKIE_NAME': 'testcookie',
'TEST_COOKIE_VALUE': 'worked',
}
def __repr__(self):
return "session started at %s" % self.start_time
def get_cookie(self):
"Returns a tuple of the cookie name and value for this session."
from django.conf.settings import AUTH_SESSION_COOKIE, SECRET_KEY
import md5
return AUTH_SESSION_COOKIE, self.session_md5 + md5.new(self.session_md5 + SECRET_KEY + 'auth').hexdigest()
def _module_create_session(user_id):
"Registers a session and returns the session_md5."
from django.conf.settings import SECRET_KEY
import md5, random, sys
# The random module is seeded when this Apache child is created.
# Use person_id and SECRET_KEY as added salt.
session_md5 = md5.new(str(random.randint(user_id, sys.maxint - 1)) + SECRET_KEY).hexdigest()
s = Session(None, user_id, session_md5, None)
s.save()
return s
def _module_get_session_from_cookie(session_cookie_string):
from django.conf.settings import SECRET_KEY
import md5
if not session_cookie_string:
raise SessionDoesNotExist
session_md5, tamper_check = session_cookie_string[:32], session_cookie_string[32:]
if md5.new(session_md5 + SECRET_KEY + 'auth').hexdigest() != tamper_check:
raise SessionDoesNotExist
return get_object(session_md5__exact=session_md5, select_related=True)
def _module_destroy_all_sessions(user_id):
"Destroys all sessions for a user, logging out all computers."
for session in get_list(user_id__exact=user_id):
session.delete()
def _module_start_web_session(user_id, request, response):
"Sets the necessary cookie in the given HttpResponse object, also updates last login time for user."
from django.models.auth import users
from django.conf.settings import REGISTRATION_COOKIE_DOMAIN
user = users.get_object(pk=user_id)
user.last_login = datetime.datetime.now()
user.save()
session = create_session(user_id)
key, value = session.get_cookie()
cookie_domain = REGISTRATION_COOKIE_DOMAIN or None
response.set_cookie(key, value, domain=cookie_domain)
class Message(meta.Model):
fields = (
meta.ForeignKey(User),
meta.TextField('message'),
)
def __repr__(self):
return self.message
class LogEntry(meta.Model):
module_name = 'log'
verbose_name_plural = 'log entries'
db_table = 'auth_admin_log'
fields = (
meta.DateTimeField('action_time', auto_now=True),
meta.ForeignKey(User),
meta.ForeignKey(core.ContentType, name='content_type_id', rel_name='content_type', blank=True, null=True),
meta.TextField('object_id', blank=True, null=True),
meta.CharField('object_repr', maxlength=200),
meta.PositiveSmallIntegerField('action_flag'),
meta.TextField('change_message', blank=True),
)
ordering = ('-action_time',)
module_constants = {
'ADDITION': 1,
'CHANGE': 2,
'DELETION': 3,
}
def __repr__(self):
return str(self.action_time)
def is_addition(self):
return self.action_flag == ADDITION
def is_change(self):
return self.action_flag == CHANGE
def is_deletion(self):
return self.action_flag == DELETION
def get_edited_object(self):
"Returns the edited object represented by this log entry"
return self.get_content_type().get_object_for_this_type(pk=self.object_id)
def get_admin_url(self):
"""
Returns the admin URL to edit the object represented by this log entry.
This is relative to the Django admin index page.
"""
return "%s/%s/%s/" % (self.get_content_type().package, self.get_content_type().python_module_name, self.object_id)
def _module_log_action(user_id, content_type_id, object_id, object_repr, action_flag, change_message=''):
e = LogEntry(None, None, user_id, content_type_id, object_id, object_repr[:200], action_flag, change_message)
e.save()