app/django/contrib/auth/forms.py
changeset 54 03e267d67478
child 323 ff1a9aa48cfd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/django/contrib/auth/forms.py	Fri Jul 18 18:22:23 2008 +0000
@@ -0,0 +1,144 @@
+from django.contrib.auth.models import User
+from django.contrib.auth import authenticate
+from django.contrib.sites.models import Site
+from django.template import Context, loader
+from django.core import validators
+from django import oldforms
+from django.utils.translation import ugettext as _
+
+class UserCreationForm(oldforms.Manipulator):
+    "A form that creates a user, with no privileges, from the given username and password."
+    def __init__(self):
+        self.fields = (
+            oldforms.TextField(field_name='username', length=30, max_length=30, is_required=True,
+                validator_list=[validators.isAlphaNumeric, self.isValidUsername]),
+            oldforms.PasswordField(field_name='password1', length=30, max_length=60, is_required=True),
+            oldforms.PasswordField(field_name='password2', length=30, max_length=60, is_required=True,
+                validator_list=[validators.AlwaysMatchesOtherField('password1', _("The two password fields didn't match."))]),
+        )
+
+    def isValidUsername(self, field_data, all_data):
+        try:
+            User.objects.get(username=field_data)
+        except User.DoesNotExist:
+            return
+        raise validators.ValidationError, _('A user with that username already exists.')
+
+    def save(self, new_data):
+        "Creates the user."
+        return User.objects.create_user(new_data['username'], '', new_data['password1'])
+
+class AuthenticationForm(oldforms.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 = [
+            oldforms.TextField(field_name="username", length=15, max_length=30, is_required=True,
+                validator_list=[self.isValidUser, self.hasCookiesEnabled]),
+            oldforms.PasswordField(field_name="password", length=15, max_length=30, is_required=True),
+        ]
+        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):
+        username = field_data
+        password = all_data.get('password', None)
+        self.user_cache = authenticate(username=username, password=password)
+        if self.user_cache is None:
+            raise validators.ValidationError, _("Please enter a correct username and password. Note that both fields are case-sensitive.")
+        elif not self.user_cache.is_active:
+            raise validators.ValidationError, _("This account is inactive.")
+
+    def get_user_id(self):
+        if self.user_cache:
+            return self.user_cache.id
+        return None
+
+    def get_user(self):
+        return self.user_cache
+
+class PasswordResetForm(oldforms.Manipulator):
+    "A form that lets a user request a password reset"
+    def __init__(self):
+        self.fields = (
+            oldforms.EmailField(field_name="email", length=40, is_required=True,
+                validator_list=[self.isValidUserEmail]),
+        )
+
+    def isValidUserEmail(self, new_data, all_data):
+        "Validates that a user exists with the given e-mail address"
+        self.users_cache = list(User.objects.filter(email__iexact=new_data))
+        if len(self.users_cache) == 0:
+            raise validators.ValidationError, _("That e-mail address doesn't have an associated user account. Are you sure you've registered?")
+
+    def save(self, domain_override=None, email_template_name='registration/password_reset_email.html'):
+        "Calculates a new password randomly and sends it to the user"
+        from django.core.mail import send_mail
+        for user in self.users_cache:
+            new_pass = User.objects.make_random_password()
+            user.set_password(new_pass)
+            user.save()
+            if not domain_override:
+                current_site = Site.objects.get_current()
+                site_name = current_site.name
+                domain = current_site.domain
+            else:
+                site_name = domain = domain_override
+            t = loader.get_template(email_template_name)
+            c = {
+                'new_password': new_pass,
+                'email': user.email,
+                'domain': domain,
+                'site_name': site_name,
+                'user': user,
+                }
+            send_mail(_('Password reset on %s') % site_name, t.render(Context(c)), None, [user.email])
+
+class PasswordChangeForm(oldforms.Manipulator):
+    "A form that lets a user change his password."
+    def __init__(self, user):
+        self.user = user
+        self.fields = (
+            oldforms.PasswordField(field_name="old_password", length=30, max_length=30, is_required=True,
+                validator_list=[self.isValidOldPassword]),
+            oldforms.PasswordField(field_name="new_password1", length=30, max_length=30, is_required=True,
+                validator_list=[validators.AlwaysMatchesOtherField('new_password2', _("The two 'new password' fields didn't match."))]),
+            oldforms.PasswordField(field_name="new_password2", length=30, max_length=30, is_required=True),
+        )
+
+    def isValidOldPassword(self, new_data, all_data):
+        "Validates that the old_password field is correct."
+        if not self.user.check_password(new_data):
+            raise validators.ValidationError, _("Your old password was entered incorrectly. Please enter it again.")
+
+    def save(self, new_data):
+        "Saves the new password."
+        self.user.set_password(new_data['new_password1'])
+        self.user.save()
+
+class AdminPasswordChangeForm(oldforms.Manipulator):
+    "A form used to change the password of a user in the admin interface."
+    def __init__(self, user):
+        self.user = user
+        self.fields = (
+            oldforms.PasswordField(field_name='password1', length=30, max_length=60, is_required=True),
+            oldforms.PasswordField(field_name='password2', length=30, max_length=60, is_required=True,
+                validator_list=[validators.AlwaysMatchesOtherField('password1', _("The two password fields didn't match."))]),
+        )
+
+    def save(self, new_data):
+        "Saves the new password."
+        self.user.set_password(new_data['password1'])
+        self.user.save()