django1/django/parts/auth/formfields.py

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from django.models.auth import users
from django.core import formfields, validators
class AuthenticationForm(formfields.Manipulator):
"""
Base class for authenticating users. Extend this to get a form that accepts
username/password logins.
"""
def __init__(self, request=None):
"""
If request is passed in, the manipulator will validate that cookies are
enabled. Note that the request (a HttpRequest object) must have set a
cookie with the key TEST_COOKIE_NAME and value TEST_COOKIE_VALUE before
running this validator.
"""
self.request = request
self.fields = [
formfields.TextField(field_name="username", length=15, maxlength=30, is_required=True,
validator_list=[self.isValidUser, self.hasCookiesEnabled]),
formfields.PasswordField(field_name="password", length=15, maxlength=30, is_required=True,
validator_list=[self.isValidPasswordForUser]),
]
self.user_cache = None
def hasCookiesEnabled(self, field_data, all_data):
if self.request and not self.request.session.test_cookie_worked():
raise validators.ValidationError, "Your Web browser doesn't appear to have cookies enabled. Cookies are required for logging in."
def isValidUser(self, field_data, all_data):
try:
self.user_cache = users.get_object(username__exact=field_data)
except users.UserDoesNotExist:
raise validators.ValidationError, "Please enter a correct username and password. Note that both fields are case-sensitive."
def isValidPasswordForUser(self, field_data, all_data):
if self.user_cache is not None and not self.user_cache.check_password(field_data):
self.user_cache = None
raise validators.ValidationError, "Please enter a correct username and password. Note that both fields are case-sensitive."
def get_user_id(self):
if self.user_cache:
return self.user_cache.id
return None
def get_user(self):
return self.user_cache