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