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forms.py
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forms.py
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from __future__ import absolute_import
import warnings
from django import forms
from django.core.urlresolvers import reverse
from django.core import exceptions
from django.utils.translation import pgettext, ugettext_lazy as _, ugettext
from django.contrib.auth import authenticate
from django.contrib.auth.tokens import default_token_generator
from ..utils import (email_address_exists,
set_form_field_order,
build_absolute_uri,
get_username_max_length,
get_current_site)
from .models import EmailAddress
from .utils import (perform_login, setup_user_email, url_str_to_user_pk,
user_username, user_pk_to_url_str, filter_users_by_email,
get_user_model)
from .app_settings import AuthenticationMethod
from . import app_settings
from .adapter import get_adapter
try:
from importlib import import_module
except ImportError:
from django.utils.importlib import import_module
class PasswordField(forms.CharField):
def __init__(self, *args, **kwargs):
render_value = kwargs.pop('render_value',
app_settings.PASSWORD_INPUT_RENDER_VALUE)
kwargs['widget'] = forms.PasswordInput(render_value=render_value,
attrs={'placeholder':
_(kwargs.get("label"))})
super(PasswordField, self).__init__(*args, **kwargs)
class SetPasswordField(PasswordField):
def clean(self, value):
value = super(SetPasswordField, self).clean(value)
value = get_adapter().clean_password(value)
return value
class LoginForm(forms.Form):
password = PasswordField(label=_("Password"))
remember = forms.BooleanField(label=_("Remember Me"),
required=False)
user = None
error_messages = {
'account_inactive':
_("This account is currently inactive."),
'email_password_mismatch':
_("The e-mail address and/or password you specified are not correct."),
'username_password_mismatch':
_("The username and/or password you specified are not correct."),
'username_email_password_mismatch':
_("The login and/or password you specified are not correct.")
}
def __init__(self, *args, **kwargs):
super(LoginForm, self).__init__(*args, **kwargs)
if app_settings.AUTHENTICATION_METHOD == AuthenticationMethod.EMAIL:
login_widget = forms.TextInput(attrs={'type': 'email',
'placeholder':
_('E-mail address'),
'autofocus': 'autofocus'})
login_field = forms.EmailField(label=_("E-mail"),
widget=login_widget)
elif app_settings.AUTHENTICATION_METHOD \
== AuthenticationMethod.USERNAME:
login_widget = forms.TextInput(attrs={'placeholder':
_('Username'),
'autofocus': 'autofocus'})
login_field = forms.CharField(
label=_("Username"),
widget=login_widget,
max_length=get_username_max_length())
else:
assert app_settings.AUTHENTICATION_METHOD \
== AuthenticationMethod.USERNAME_EMAIL
login_widget = forms.TextInput(attrs={'placeholder':
_('Username or e-mail'),
'autofocus': 'autofocus'})
login_field = forms.CharField(label=pgettext("field label",
"Login"),
widget=login_widget)
self.fields["login"] = login_field
set_form_field_order(self, ["login", "password", "remember"])
if app_settings.SESSION_REMEMBER is not None:
del self.fields['remember']
def user_credentials(self):
"""
Provides the credentials required to authenticate the user for
login.
"""
credentials = {}
login = self.cleaned_data["login"]
if app_settings.AUTHENTICATION_METHOD == AuthenticationMethod.EMAIL:
credentials["email"] = login
elif (app_settings.AUTHENTICATION_METHOD
== AuthenticationMethod.USERNAME):
credentials["username"] = login
else:
if "@" in login and "." in login:
credentials["email"] = login
credentials["username"] = login
credentials["password"] = self.cleaned_data["password"]
return credentials
def clean_login(self):
login = self.cleaned_data['login']
return login.strip()
def clean(self):
if self._errors:
return
user = authenticate(**self.user_credentials())
if user:
self.user = user
else:
raise forms.ValidationError(
self.error_messages[
'%s_password_mismatch'
% app_settings.AUTHENTICATION_METHOD])
return self.cleaned_data
def login(self, request, redirect_url=None):
ret = perform_login(request, self.user,
email_verification=app_settings.EMAIL_VERIFICATION,
redirect_url=redirect_url)
remember = app_settings.SESSION_REMEMBER
if remember is None:
remember = self.cleaned_data['remember']
if remember:
request.session.set_expiry(app_settings.SESSION_COOKIE_AGE)
else:
request.session.set_expiry(0)
return ret
class _DummyCustomSignupForm(forms.Form):
def signup(self, request, user):
"""
Invoked at signup time to complete the signup of the user.
"""
pass
def _base_signup_form_class():
"""
Currently, we inherit from the custom form, if any. This is all
not very elegant, though it serves a purpose:
- There are two signup forms: one for local accounts, and one for
social accounts
- Both share a common base (BaseSignupForm)
- Given the above, how to put in a custom signup form? Which form
would your custom form derive from, the local or the social one?
"""
if not app_settings.SIGNUP_FORM_CLASS:
return _DummyCustomSignupForm
try:
fc_module, fc_classname = app_settings.SIGNUP_FORM_CLASS.rsplit('.', 1)
except ValueError:
raise exceptions.ImproperlyConfigured('%s does not point to a form'
' class'
% app_settings.SIGNUP_FORM_CLASS)
try:
mod = import_module(fc_module)
except ImportError as e:
raise exceptions.ImproperlyConfigured('Error importing form class %s:'
' "%s"' % (fc_module, e))
try:
fc_class = getattr(mod, fc_classname)
except AttributeError:
raise exceptions.ImproperlyConfigured('Module "%s" does not define a'
' "%s" class' % (fc_module,
fc_classname))
if not hasattr(fc_class, 'signup'):
if hasattr(fc_class, 'save'):
warnings.warn("The custom signup form must offer"
" a `def signup(self, request, user)` method",
DeprecationWarning)
else:
raise exceptions.ImproperlyConfigured(
'The custom signup form must implement a "signup" method')
return fc_class
class BaseSignupForm(_base_signup_form_class()):
username = forms.CharField(label=_("Username"),
max_length=get_username_max_length(),
min_length=app_settings.USERNAME_MIN_LENGTH,
widget=forms.TextInput(
attrs={'placeholder':
_('Username'),
'autofocus': 'autofocus'}))
email = forms.EmailField(widget=forms.TextInput(
attrs={'type': 'email',
'placeholder': _('E-mail address')}))
def __init__(self, *args, **kwargs):
email_required = kwargs.pop('email_required',
app_settings.EMAIL_REQUIRED)
self.username_required = kwargs.pop('username_required',
app_settings.USERNAME_REQUIRED)
super(BaseSignupForm, self).__init__(*args, **kwargs)
# field order may contain additional fields from our base class,
# so take proper care when reordering...
field_order = ['email', 'username']
merged_field_order = list(self.fields.keys())
if email_required:
self.fields["email"].label = ugettext("E-mail")
self.fields["email"].required = True
else:
self.fields["email"].label = ugettext("E-mail (optional)")
self.fields["email"].required = False
self.fields["email"].widget.is_required = False
if self.username_required:
field_order = ['username', 'email']
# Merge our email and username fields in if they are not
# currently in the order. This is to allow others to
# re-arrange email and username if they desire. Go in reverse
# so that we make sure the inserted items are always
# prepended.
for field in reversed(field_order):
if field not in merged_field_order:
merged_field_order.insert(0, field)
set_form_field_order(self, merged_field_order)
if not self.username_required:
del self.fields["username"]
def clean_username(self):
value = self.cleaned_data["username"]
value = get_adapter().clean_username(value)
return value
def clean_email(self):
value = self.cleaned_data["email"]
value = get_adapter().clean_email(value)
if app_settings.UNIQUE_EMAIL:
if value and email_address_exists(value):
self.raise_duplicate_email_error()
return value
def raise_duplicate_email_error(self):
raise forms.ValidationError(_("A user is already registered"
" with this e-mail address."))
def custom_signup(self, request, user):
custom_form = super(BaseSignupForm, self)
if hasattr(custom_form, 'signup') and callable(custom_form.signup):
custom_form.signup(request, user)
else:
warnings.warn("The custom signup form must offer"
" a `def signup(self, request, user)` method",
DeprecationWarning)
# Historically, it was called .save, but this is confusing
# in case of ModelForm
custom_form.save(user)
class SignupForm(BaseSignupForm):
password1 = SetPasswordField(label=_("Password"))
password2 = PasswordField(label=_("Password (again)"))
confirmation_key = forms.CharField(max_length=40,
required=False,
widget=forms.HiddenInput())
def __init__(self, *args, **kwargs):
super(SignupForm, self).__init__(*args, **kwargs)
if not app_settings.SIGNUP_PASSWORD_VERIFICATION:
del self.fields["password2"]
def clean(self):
super(SignupForm, self).clean()
if app_settings.SIGNUP_PASSWORD_VERIFICATION \
and "password1" in self.cleaned_data \
and "password2" in self.cleaned_data:
if self.cleaned_data["password1"] \
!= self.cleaned_data["password2"]:
raise forms.ValidationError(_("You must type the same password"
" each time."))
return self.cleaned_data
def save(self, request):
adapter = get_adapter()
user = adapter.new_user(request)
adapter.save_user(request, user, self)
self.custom_signup(request, user)
# TODO: Move into adapter `save_user` ?
setup_user_email(request, user, [])
return user
class UserForm(forms.Form):
def __init__(self, user=None, *args, **kwargs):
self.user = user
super(UserForm, self).__init__(*args, **kwargs)
class AddEmailForm(UserForm):
email = forms.EmailField(label=_("E-mail"),
required=True,
widget=forms.TextInput(attrs={"type": "email",
"size": "30",
"placeholder": _('E-mail address')}))
def clean_email(self):
value = self.cleaned_data["email"]
value = get_adapter().clean_email(value)
errors = {
"this_account": _("This e-mail address is already associated"
" with this account."),
"different_account": _("This e-mail address is already associated"
" with another account."),
}
users = filter_users_by_email(value)
on_this_account = [u for u in users if u.pk == self.user.pk]
on_diff_account = [u for u in users if u.pk != self.user.pk]
if on_this_account:
raise forms.ValidationError(errors["this_account"])
if on_diff_account and app_settings.UNIQUE_EMAIL:
raise forms.ValidationError(errors["different_account"])
return value
def save(self, request):
return EmailAddress.objects.add_email(request,
self.user,
self.cleaned_data["email"],
confirm=True)
class ChangePasswordForm(UserForm):
oldpassword = PasswordField(label=_("Current Password"))
password1 = SetPasswordField(label=_("New Password"))
password2 = PasswordField(label=_("New Password (again)"))
def clean_oldpassword(self):
if not self.user.check_password(self.cleaned_data.get("oldpassword")):
raise forms.ValidationError(_("Please type your current"
" password."))
return self.cleaned_data["oldpassword"]
def clean_password2(self):
if ("password1" in self.cleaned_data
and "password2" in self.cleaned_data):
if (self.cleaned_data["password1"]
!= self.cleaned_data["password2"]):
raise forms.ValidationError(_("You must type the same password"
" each time."))
return self.cleaned_data["password2"]
def save(self):
get_adapter().set_password(self.user, self.cleaned_data["password1"])
class SetPasswordForm(UserForm):
password1 = SetPasswordField(label=_("Password"))
password2 = PasswordField(label=_("Password (again)"))
def clean_password2(self):
if ("password1" in self.cleaned_data
and "password2" in self.cleaned_data):
if (self.cleaned_data["password1"]
!= self.cleaned_data["password2"]):
raise forms.ValidationError(_("You must type the same password"
" each time."))
return self.cleaned_data["password2"]
def save(self):
get_adapter().set_password(self.user, self.cleaned_data["password1"])
class ResetPasswordForm(forms.Form):
email = forms.EmailField(
label=_("E-mail"),
required=True,
widget=forms.TextInput(attrs={"type": "email", "size": "30"}))
def clean_email(self):
email = self.cleaned_data["email"]
email = get_adapter().clean_email(email)
self.users = filter_users_by_email(email)
if not self.users:
raise forms.ValidationError(_("The e-mail address is not assigned"
" to any user account"))
return self.cleaned_data["email"]
def save(self, request, **kwargs):
email = self.cleaned_data["email"]
token_generator = kwargs.get("token_generator",
default_token_generator)
for user in self.users:
temp_key = token_generator.make_token(user)
# save it to the password reset model
# password_reset = PasswordReset(user=user, temp_key=temp_key)
# password_reset.save()
current_site = get_current_site(request)
# send the password reset email
path = reverse("account_reset_password_from_key",
kwargs=dict(uidb36=user_pk_to_url_str(user),
key=temp_key))
url = build_absolute_uri(
request, path,
protocol=app_settings.DEFAULT_HTTP_PROTOCOL)
context = {"site": current_site,
"user": user,
"password_reset_url": url,
"request": request}
if app_settings.AUTHENTICATION_METHOD \
!= AuthenticationMethod.EMAIL:
context['username'] = user_username(user)
get_adapter().send_mail('account/email/password_reset_key',
email,
context)
return self.cleaned_data["email"]
class ResetPasswordKeyForm(forms.Form):
password1 = SetPasswordField(label=_("New Password"))
password2 = PasswordField(label=_("New Password (again)"))
def __init__(self, *args, **kwargs):
self.user = kwargs.pop("user", None)
self.temp_key = kwargs.pop("temp_key", None)
super(ResetPasswordKeyForm, self).__init__(*args, **kwargs)
# FIXME: Inspecting other fields -> should be put in def clean(self) ?
def clean_password2(self):
if ("password1" in self.cleaned_data
and "password2" in self.cleaned_data):
if (self.cleaned_data["password1"]
!= self.cleaned_data["password2"]):
raise forms.ValidationError(_("You must type the same"
" password each time."))
return self.cleaned_data["password2"]
def save(self):
get_adapter().set_password(self.user, self.cleaned_data["password1"])
class UserTokenForm(forms.Form):
uidb36 = forms.CharField()
key = forms.CharField()
reset_user = None
token_generator = default_token_generator
error_messages = {
'token_invalid': _('The password reset token was invalid.'),
}
def _get_user(self, uidb36):
User = get_user_model()
try:
pk = url_str_to_user_pk(uidb36)
return User.objects.get(pk=pk)
except (ValueError, User.DoesNotExist):
return None
def clean(self):
cleaned_data = super(UserTokenForm, self).clean()
uidb36 = cleaned_data['uidb36']
key = cleaned_data['key']
self.reset_user = self._get_user(uidb36)
if (self.reset_user is None or
not self.token_generator.check_token(self.reset_user, key)):
raise forms.ValidationError(self.error_messages['token_invalid'])
return cleaned_data