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forms.py
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forms.py
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# -*- coding: utf-8 -*-
from django import forms
from django.contrib.auth.models import Permission
from django.contrib.contenttypes.models import ContentType
from django.contrib.sites.models import Site
from django.core.exceptions import ValidationError
from django.db.models.fields import BooleanField
from django.forms.util import ErrorList
from django.forms.widgets import HiddenInput
from django.template.defaultfilters import slugify
from django.utils.translation import ugettext_lazy as _, get_language
from cms.apphook_pool import apphook_pool
from cms.constants import PAGE_TYPES_ID
from cms.forms.widgets import UserSelectAdminWidget, AppHookSelect
from cms.models import Page, PagePermission, PageUser, ACCESS_PAGE, PageUserGroup, Title, EmptyTitle
from cms.utils.compat.dj import get_user_model, force_unicode
from cms.utils.compat.forms import UserCreationForm
from cms.utils.conf import get_cms_setting
from cms.utils.i18n import get_language_tuple, get_language_list
from cms.utils.mail import mail_page_user_change
from cms.utils.page import is_valid_page_slug
from cms.utils.page_resolver import is_valid_url
from cms.utils.permissions import (get_current_user, get_subordinate_users,
get_subordinate_groups,
get_user_permission_level)
from menus.menu_pool import menu_pool
def get_permission_acessor(obj):
User = get_user_model()
if isinstance(obj, (PageUser, User,)):
rel_name = 'user_permissions'
else:
rel_name = 'permissions'
return getattr(obj, rel_name)
def save_permissions(data, obj):
models = (
(Page, 'page'),
(PageUser, 'pageuser'),
(PageUserGroup, 'pageuser'),
(PagePermission, 'pagepermission'),
)
if not obj.pk:
# save obj, otherwise we can't assign permissions to him
obj.save()
permission_acessor = get_permission_acessor(obj)
for model, name in models:
content_type = ContentType.objects.get_for_model(model)
for t in ('add', 'change', 'delete'):
# add permission `t` to model `model`
codename = getattr(model._meta, 'get_%s_permission' % t)()
permission = Permission.objects.get(content_type=content_type, codename=codename)
if data.get('can_%s_%s' % (t, name), None):
permission_acessor.add(permission)
else:
permission_acessor.remove(permission)
class PageForm(forms.ModelForm):
language = forms.ChoiceField(label=_("Language"), choices=get_language_tuple(),
help_text=_('The current language of the content fields.'))
page_type = forms.ChoiceField(label=_("Page type"), required=False)
title = forms.CharField(label=_("Title"), widget=forms.TextInput(),
help_text=_('The default title'))
slug = forms.CharField(label=_("Slug"), widget=forms.TextInput(),
help_text=_('The part of the title that is used in the URL'))
menu_title = forms.CharField(label=_("Menu Title"), widget=forms.TextInput(),
help_text=_('Overwrite what is displayed in the menu'), required=False)
page_title = forms.CharField(label=_("Page Title"), widget=forms.TextInput(),
help_text=_('Overwrites what is displayed at the top of your browser or in bookmarks'),
required=False)
meta_description = forms.CharField(label=_('Description meta tag'), required=False,
widget=forms.Textarea(attrs={'maxlength': '155', 'rows': '4'}),
help_text=_('A description of the page used by search engines.'),
max_length=155)
class Meta:
model = Page
fields = ["parent", "site", 'template']
def __init__(self, *args, **kwargs):
super(PageForm, self).__init__(*args, **kwargs)
self.fields['parent'].widget = HiddenInput()
self.fields['site'].widget = HiddenInput()
self.fields['template'].widget = HiddenInput()
self.fields['language'].widget = HiddenInput()
if not self.fields['site'].initial:
self.fields['site'].initial = Site.objects.get_current().pk
site_id = self.fields['site'].initial
languages = get_language_tuple(site_id)
self.fields['language'].choices = languages
if not self.fields['language'].initial:
self.fields['language'].initial = get_language()
if 'page_type' in self.fields:
try:
type_root = Page.objects.get(publisher_is_draft=True, reverse_id=PAGE_TYPES_ID, site=site_id)
except Page.DoesNotExist:
type_root = None
if type_root:
language = self.fields['language'].initial
type_ids = type_root.get_descendants().values_list('pk', flat=True)
titles = Title.objects.filter(page__in=type_ids, language=language)
choices = [('', '----')]
for title in titles:
choices.append((title.page_id, title.title))
self.fields['page_type'].choices = choices
def clean(self):
cleaned_data = self.cleaned_data
slug = cleaned_data.get('slug', '')
page = self.instance
lang = cleaned_data.get('language', None)
# No language, can not go further, but validation failed already
if not lang:
return cleaned_data
if 'parent' not in cleaned_data:
cleaned_data['parent'] = None
parent = cleaned_data.get('parent', None)
try:
site = self.cleaned_data.get('site', Site.objects.get_current())
except Site.DoesNotExist:
raise ValidationError("No site found for current settings.")
if parent and parent.site != site:
raise ValidationError("Site doesn't match the parent's page site")
if site and not is_valid_page_slug(page, parent, lang, slug, site):
self._errors['slug'] = ErrorList([_('Another page with this slug already exists')])
del cleaned_data['slug']
if self.instance and page.title_set.count():
#Check for titles attached to the page makes sense only because
#AdminFormsTests.test_clean_overwrite_url validates the form with when no page instance available
#Looks like just a theoretical corner case
title = page.get_title_obj(lang, fallback=False)
if title and not isinstance(title, EmptyTitle) and slug:
oldslug = title.slug
title.slug = slug
title.save()
try:
is_valid_url(title.path, page)
except ValidationError as exc:
title.slug = oldslug
title.save()
if 'slug' in cleaned_data:
del cleaned_data['slug']
if hasattr(exc, 'messages'):
errors = exc.messages
else:
errors = [force_unicode(exc.message)]
self._errors['slug'] = ErrorList(errors)
return cleaned_data
def clean_slug(self):
slug = slugify(self.cleaned_data['slug'])
if not slug:
raise ValidationError(_("Slug must not be empty."))
return slug
def clean_language(self):
language = self.cleaned_data['language']
if not language in get_language_list():
raise ValidationError("Given language does not match language settings.")
return language
class PublicationDatesForm(forms.ModelForm):
language = forms.ChoiceField(label=_("Language"), choices=get_language_tuple(),
help_text=_('The current language of the content fields.'))
def __init__(self, *args, **kwargs):
# Dates are not language dependent, so let's just fake the language to
# make the ModelAdmin happy
super(PublicationDatesForm, self).__init__(*args, **kwargs)
self.fields['language'].widget = HiddenInput()
self.fields['site'].widget = HiddenInput()
site_id = self.fields['site'].initial
languages = get_language_tuple(site_id)
self.fields['language'].choices = languages
if not self.fields['language'].initial:
self.fields['language'].initial = get_language()
class Meta:
model = Page
fields = ['site', 'publication_date', 'publication_end_date']
class AdvancedSettingsForm(forms.ModelForm):
from cms.forms.fields import PageSmartLinkField
application_urls = forms.ChoiceField(label=_('Application'),
choices=(), required=False,
help_text=_('Hook application to this page.'))
overwrite_url = forms.CharField(label=_('Overwrite URL'), max_length=255, required=False,
help_text=_('Keep this field empty if standard path should be used.'))
xframe_options = forms.ChoiceField(
choices=Page._meta.get_field('xframe_options').choices,
label=_('X Frame Options'),
help_text=_('Whether this page can be embedded in other pages or websites'),
initial=Page._meta.get_field('xframe_options').default,
required=False
)
redirect = PageSmartLinkField(label=_('Redirect'), required=False,
help_text=_('Redirects to this URL.'), placeholder_text=_('Start typing...'),
ajax_view='admin:cms_page_get_published_pagelist'
)
language = forms.ChoiceField(label=_("Language"), choices=get_language_tuple(),
help_text=_('The current language of the content fields.'))
fieldsets = (
(None, {
'fields': ('overwrite_url','redirect'),
}),
('Language independent options', {
'fields': ('site', 'template', 'reverse_id', 'soft_root', 'navigation_extenders',
'application_urls', 'application_namespace', "xframe_options",)
})
)
def __init__(self, *args, **kwargs):
super(AdvancedSettingsForm, self).__init__(*args, **kwargs)
self.fields['language'].widget = HiddenInput()
self.fields['site'].widget = HiddenInput()
site_id = self.fields['site'].initial
languages = get_language_tuple(site_id)
self.fields['language'].choices = languages
if not self.fields['language'].initial:
self.fields['language'].initial = get_language()
if 'navigation_extenders' in self.fields:
self.fields['navigation_extenders'].widget = forms.Select({},
[('', "---------")] + menu_pool.get_menus_by_attribute("cms_enabled", True))
if 'application_urls' in self.fields:
# Prepare a dict mapping the apps by class name ('PollApp') to
# their app_name attribute ('polls'), if any.
app_namespaces = {}
for hook in apphook_pool.get_apphooks():
app = apphook_pool.get_apphook(hook[0])
if app.app_name:
app_namespaces[hook[0]] = app.app_name
self.fields['application_urls'].widget = AppHookSelect(
attrs={'id':'application_urls'},
app_namespaces=app_namespaces,
)
self.fields['application_urls'].choices = [('', "---------")] + apphook_pool.get_apphooks()
if 'redirect' in self.fields:
self.fields['redirect'].widget.language = self.fields['language'].initial
def clean(self):
cleaned_data = super(AdvancedSettingsForm, self).clean()
if 'reverse_id' in self.fields:
id = cleaned_data['reverse_id']
site_id = cleaned_data['site']
if id:
if Page.objects.filter(reverse_id=id, site=site_id, publisher_is_draft=True).exclude(
pk=self.instance.pk).count():
self._errors['reverse_id'] = self.error_class(
[_('A page with this reverse URL id exists already.')])
apphook = cleaned_data.get('application_urls', None)
# The field 'application_namespace' is a misnomer. It should be
# 'instance_namespace'.
instance_namespace = cleaned_data.get('application_namespace', None)
if apphook:
# The attribute on the apps 'app_name' is a misnomer, it should be
# 'application_namespace'.
application_namespace = apphook_pool.get_apphook(apphook).app_name
if application_namespace and not instance_namespace:
if Page.objects.filter(
publisher_is_draft=True,
application_urls=apphook,
application_namespace=application_namespace
).exclude(pk=self.instance.pk).count():
# Looks like there's already one with the default instance
# namespace defined.
self._errors['application_urls'] = ErrorList([
_('''You selected an apphook with an "app_name".
You must enter a unique instance name.''')
])
else:
# OK, there are zero instances of THIS app that use the
# default instance namespace, so, since the user didn't
# provide one, we'll use the default. NOTE: The following
# line is really setting the "instance namespace" of the
# new app to the app’s "application namespace", which is
# the default instance namespace.
self.cleaned_data['application_namespace'] = application_namespace
if instance_namespace and not apphook:
self.cleaned_data['application_namespace'] = None
return cleaned_data
def clean_application_namespace(self):
namespace = self.cleaned_data['application_namespace']
if namespace and Page.objects.filter(publisher_is_draft=True, application_namespace=namespace).exclude(pk=self.instance.pk).count():
raise ValidationError(_('A instance name with this name already exists.'))
return namespace
def clean_xframe_options(self):
if 'xframe_options' not in self.fields:
return # nothing to do, field isn't present
xframe_options = self.cleaned_data['xframe_options']
if xframe_options == '':
return Page._meta.get_field('xframe_options').default
return xframe_options
def clean_overwrite_url(self):
if 'overwrite_url' in self.fields:
url = self.cleaned_data['overwrite_url']
is_valid_url(url, self.instance)
return url
class Meta:
model = Page
fields = [
'site', 'template', 'reverse_id', 'overwrite_url', 'redirect', 'soft_root', 'navigation_extenders',
'application_urls', 'application_namespace', "xframe_options",
]
class PagePermissionForm(forms.ModelForm):
class Meta:
model = Page
fields = ['login_required', 'limit_visibility_in_menu']
class PagePermissionInlineAdminForm(forms.ModelForm):
"""
Page permission inline admin form used in inline admin. Required, because
user and group queryset must be changed. User can see only users on the same
level or under him in choosen page tree, and users which were created by him,
but aren't assigned to higher page level than current user.
"""
page = forms.ModelChoiceField(Page, label=_('user'), widget=HiddenInput(), required=True)
def __init__(self, *args, **kwargs):
super(PagePermissionInlineAdminForm, self).__init__(*args, **kwargs)
user = get_current_user() # current user from threadlocals
sub_users = get_subordinate_users(user)
limit_choices = True
use_raw_id = False
# Unfortunately, if there are > 500 users in the system, non-superusers
# won't see any benefit here because if we ask Django to put all the
# user PKs in limit_choices_to in the query string of the popup we're
# in danger of causing 414 errors so we fall back to the normal input
# widget.
if get_cms_setting('RAW_ID_USERS'):
if sub_users.count() < 500:
# If there aren't too many users, proceed as normal and use a
# raw id field with limit_choices_to
limit_choices = True
use_raw_id = True
elif get_user_permission_level(user) == 0:
# If there are enough choices to possibly cause a 414 request
# URI too large error, we only proceed with the raw id field if
# the user is a superuser & thus can legitimately circumvent
# the limit_choices_to condition.
limit_choices = False
use_raw_id = True
# We don't use the fancy custom widget if the admin form wants to use a
# raw id field for the user
if use_raw_id:
from django.contrib.admin.widgets import ForeignKeyRawIdWidget
# This check will be False if the number of users in the system
# is less than the threshold set by the RAW_ID_USERS setting.
if isinstance(self.fields['user'].widget, ForeignKeyRawIdWidget):
# We can't set a queryset on a raw id lookup, but we can use
# the fact that it respects the limit_choices_to parameter.
if limit_choices:
self.fields['user'].widget.rel.limit_choices_to = dict(
id__in=list(sub_users.values_list('pk', flat=True))
)
else:
self.fields['user'].widget = UserSelectAdminWidget()
self.fields['user'].queryset = sub_users
self.fields['user'].widget.user = user # assign current user
self.fields['group'].queryset = get_subordinate_groups(user)
def clean(self):
super(PagePermissionInlineAdminForm, self).clean()
for field in self.Meta.model._meta.fields:
if not isinstance(field, BooleanField) or not field.name.startswith('can_'):
continue
name = field.name
self.cleaned_data[name] = self.cleaned_data.get(name, False)
can_add = self.cleaned_data['can_add']
can_edit = self.cleaned_data['can_change']
# check if access for childrens, or descendants is granted
if can_add and self.cleaned_data['grant_on'] == ACCESS_PAGE:
# this is a missconfiguration - user can add/move page to current
# page but after he does this, he will not have permissions to
# access this page anymore, so avoid this
raise forms.ValidationError(_("Add page permission requires also "
"access to children, or descendants, otherwise added page "
"can't be changed by its creator."))
if can_add and not can_edit:
raise forms.ValidationError(_('Add page permission also requires edit page permission.'))
# TODO: finish this, but is it really required? might be nice to have
# check if permissions assigned in cms are correct, and display
# a message if not - correctness mean: if user has add permission to
# page, but he doesn't have auth permissions to add page object,
# display warning
return self.cleaned_data
def save(self, commit=True):
"""
Makes sure the boolean fields are set to False if they aren't
available in the form.
"""
instance = super(PagePermissionInlineAdminForm, self).save(commit=False)
for field in self._meta.model._meta.fields:
if isinstance(field, BooleanField) and field.name.startswith('can_'):
setattr(instance, field.name, self.cleaned_data.get(field.name, False))
if commit:
instance.save()
return instance
class Meta:
model = PagePermission
class ViewRestrictionInlineAdminForm(PagePermissionInlineAdminForm):
can_view = forms.BooleanField(label=_('can_view'), widget=HiddenInput(), initial=True)
def clean_can_view(self):
self.cleaned_data["can_view"] = True
return self.cleaned_data
class GlobalPagePermissionAdminForm(forms.ModelForm):
def clean(self):
super(GlobalPagePermissionAdminForm, self).clean()
if not self.cleaned_data['user'] and not self.cleaned_data['group']:
raise forms.ValidationError(_('Please select user or group first.'))
return self.cleaned_data
class GenericCmsPermissionForm(forms.ModelForm):
"""Generic form for User & Grup permissions in cms
"""
can_add_page = forms.BooleanField(label=_('Add'), required=False, initial=True)
can_change_page = forms.BooleanField(label=_('Change'), required=False, initial=True)
can_delete_page = forms.BooleanField(label=_('Delete'), required=False)
can_recover_page = forms.BooleanField(label=_('Recover (any) pages'), required=False)
# pageuser is for pageuser & group - they are combined together,
# and read out from PageUser model
can_add_pageuser = forms.BooleanField(label=_('Add'), required=False)
can_change_pageuser = forms.BooleanField(label=_('Change'), required=False)
can_delete_pageuser = forms.BooleanField(label=_('Delete'), required=False)
can_add_pagepermission = forms.BooleanField(label=_('Add'), required=False)
can_change_pagepermission = forms.BooleanField(label=_('Change'), required=False)
can_delete_pagepermission = forms.BooleanField(label=_('Delete'), required=False)
def populate_initials(self, obj):
"""Read out permissions from permission system.
"""
initials = {}
permission_acessor = get_permission_acessor(obj)
for model in (Page, PageUser, PagePermission):
name = model.__name__.lower()
content_type = ContentType.objects.get_for_model(model)
permissions = permission_acessor.filter(content_type=content_type).values_list('codename', flat=True)
for t in ('add', 'change', 'delete'):
codename = getattr(model._meta, 'get_%s_permission' % t)()
initials['can_%s_%s' % (t, name)] = codename in permissions
return initials
class PageUserForm(UserCreationForm, GenericCmsPermissionForm):
notify_user = forms.BooleanField(label=_('Notify user'), required=False,
help_text=_(
'Send email notification to user about username or password change. Requires user email.'))
class Meta:
model = PageUser
def __init__(self, data=None, files=None, auto_id='id_%s', prefix=None,
initial=None, error_class=ErrorList, label_suffix=':',
empty_permitted=False, instance=None):
if instance:
initial = initial or {}
initial.update(self.populate_initials(instance))
super(PageUserForm, self).__init__(data, files, auto_id, prefix,
initial, error_class, label_suffix, empty_permitted, instance)
if instance:
# if it is a change form, keep those fields as not required
# password will be changed only if there is something entered inside
self.fields['password1'].required = False
self.fields['password1'].label = _('New password')
self.fields['password2'].required = False
self.fields['password2'].label = _('New password confirmation')
self._password_change = True
def clean_username(self):
if self.instance:
return self.cleaned_data['username']
return super(PageUserForm, self).clean_username()
# required if the User model's USERNAME_FIELD is the email field
def clean_email(self):
if self.instance:
return self.cleaned_data['email']
return super(PageUserForm, self).clean_email()
def clean_password2(self):
if self.instance and self.cleaned_data['password1'] == '' and self.cleaned_data['password2'] == '':
self._password_change = False
return u''
return super(PageUserForm, self).clean_password2()
def clean(self):
cleaned_data = super(PageUserForm, self).clean()
notify_user = self.cleaned_data['notify_user']
if notify_user and not self.cleaned_data.get('email', None):
raise forms.ValidationError(_("Email notification requires valid email address."))
if self.cleaned_data['can_add_page'] and not self.cleaned_data['can_change_page']:
raise forms.ValidationError(_("The permission to add new pages requires the permission to change pages!"))
if self.cleaned_data['can_add_pageuser'] and not self.cleaned_data['can_change_pageuser']:
raise forms.ValidationError(_("The permission to add new users requires the permission to change users!"))
if self.cleaned_data['can_add_pagepermission'] and not self.cleaned_data['can_change_pagepermission']:
raise forms.ValidationError(_("To add permissions you also need to edit them!"))
return cleaned_data
def save(self, commit=True):
"""Create user, assign him to staff users, and create permissions for
him if required. Also assigns creator to user.
"""
Super = self._password_change and PageUserForm or UserCreationForm
user = super(Super, self).save(commit=False)
user.is_staff = True
created = not bool(user.pk)
# assign creator to user
if created:
get_current_user()
user.created_by = get_current_user()
if commit:
user.save()
save_permissions(self.cleaned_data, user)
if self.cleaned_data['notify_user']:
mail_page_user_change(user, created, self.cleaned_data['password1'])
return user
class PageUserGroupForm(GenericCmsPermissionForm):
class Meta:
model = PageUserGroup
fields = ('name', )
def __init__(self, data=None, files=None, auto_id='id_%s', prefix=None,
initial=None, error_class=ErrorList, label_suffix=':',
empty_permitted=False, instance=None):
if instance:
initial = initial or {}
initial.update(self.populate_initials(instance))
super(PageUserGroupForm, self).__init__(data, files, auto_id, prefix,
initial, error_class, label_suffix, empty_permitted, instance)
def save(self, commit=True):
group = super(GenericCmsPermissionForm, self).save(commit=False)
created = not bool(group.pk)
# assign creator to user
if created:
group.created_by = get_current_user()
if commit:
group.save()
save_permissions(self.cleaned_data, group)
return group