class ObjectFieldWidget(FieldWidget):
grok.adapts(ObjectField, Interface, Interface)
template = getTemplate('objectfieldwidget.cpt')
def prepareContentValue(self, value):
if value is NO_VALUE:
return {self.identifier: []}
return {self.identifier: value}
def update(self):
super(ObjectFieldWidget, self).update()
value = self.component.dataManager(self.inputValue())
form = cloneFormData(self.form, value, self.identifier)
self.objectWidgets = Widgets(form=form, request=self.request)
self.objectWidgets.extend(self.component.objectFields)
self.objectWidgets.update()
class FormCanvas(FormData):
"""This represent a simple form setup: setup some fields and
actions, prepare widgets for it.
"""
label = u''
description = u''
actions = Actions()
fields = Fields()
__component_name__ = ''
template = default_template
@property
def action_url(self):
url = IURL(self.context, self.request, default=None)
if url is not None:
return u"%s/%s" % (url, self.__component_name__)
return u""
def __init__(self, context, request, **kwargs):
super(FormCanvas, self).__init__(context, request, **kwargs)
self.actionWidgets = Widgets(form=self, request=self.request)
self.fieldWidgets = Widgets(form=self, request=self.request)
self._updated = False
@property
def translate(self):
localizer = getLocalizer()
if localizer is not None:
return localizer.translate
return None
def update(self, *args, **kwargs):
pass
def namespace(self):
namespace = {}
namespace['context'] = self.context
namespace['request'] = self.request
namespace['form'] = self
namespace['view'] = self
return namespace
def extractData(self, fields=None):
if fields is None:
fields = self.fields
return super(FormCanvas, self).extractData(fields)
def haveRequiredFields(self):
for field in self.fields:
if field.required:
return True
return False
def updateActions(self):
action, result = self.actions.process(self, self.request)
if ISuccessMarker.providedBy(result) and result.url is not None:
code = result.code or 302
exception = REDIRECTIONS[code]
raise exception(result.url)
return action, result
def updateWidgets(self):
self.fieldWidgets.extend(self.fields)
self.actionWidgets.extend(self.actions)
self.fieldWidgets.update()
self.actionWidgets.update()
def render(self, *args, **kwargs):
"""This is the default render method.
Not providing a template will make it fails.
Override this method, if needed (eg: return a string)
"""
if self.template is None:
raise NotImplementedError("Template is not defined.")
return self.template.render(
self, translate=self.translate, **self.namespace())
class FormCanvas(FormData):
"""This represent a simple form setup: setup some fields and
actions, prepare widgets for it.
"""
grok.baseclass()
label = u''
description = u''
actions = Actions()
fields = Fields()
protected = False
csrftoken = None
__component_name__ = ''
template = default_template
@property
def action_url(self):
url = queryMultiAdapter((self.context, self.request), IURL)
if url is not None:
return u"%s/%s" % (url, self.__component_name__)
return u""
def __init__(self, context, request):
super(FormCanvas, self).__init__(context, request)
self.actionWidgets = Widgets(form=self, request=self.request)
self.fieldWidgets = Widgets(form=self, request=self.request)
self._updated = False
def setUpToken(self):
session = getSession()
if session is None:
raise CSRFTokenGenerationError("No session.")
self.csrftoken = session.get('__csrftoken__')
if self.csrftoken is None:
self.csrftoken = str(binascii.hexlify(urandom(32)))
session['__csrftoken__'] = self.csrftoken
def checkToken(self):
session = getSession()
if session is None:
raise CSRFTokenGenerationError("No session.")
cookietoken = session.get('__csrftoken__')
if cookietoken is None:
raise InvalidCSRFToken(_('Invalid CSRF token'))
if cookietoken != self.request.form.get('form.field.__csrftoken__', None):
raise InvalidCSRFToken(_('Invalid CSRF token'))
@property
def target_language(self):
return ILanguage(self.request, None)
def get_csrftoken(self):
return unicode(self.csrftoken)
def update(self, *args, **kwargs):
if self.protected:
from dolmen.forms.base.fields import Field
from zope import schema, interface
class ICSRF(interface.Interface):
__csrftoken__ = schema.TextLine(title=u'csrf', defaultFactory=self.get_csrftoken)
self.setUpToken()
self.fields.extend(Fields(ICSRF))
self.fields['__csrftoken__'].mode = 'hidden'
def namespace(self):
namespace = {}
namespace['context'] = self.context
namespace['request'] = self.request
namespace['view'] = self
return namespace
def extractData(self, fields=None):
if fields is None:
fields = self.fields
return super(FormCanvas, self).extractData(fields)
def haveRequiredFields(self):
return reduce(
operator.or_,
[False] + map(operator.attrgetter('required'), self.fields))
def updateActions(self):
action, result = self.actions.process(self, self.request)
if action is not None and self.protected:
# This form has CSRF protection enabled.
self.checkToken()
if ISuccessMarker.providedBy(result) and result.url is not None:
code = result.code or 302
exception = REDIRECTIONS[code]
raise exception(result.url)
return action, result
def updateWidgets(self):
self.fieldWidgets.extend(self.fields)
self.actionWidgets.extend(self.actions)
self.fieldWidgets.update()
self.actionWidgets.update()
def render(self, *args, **kwargs):
"""This is the default render method.
Not providing a template will make it fails.
Override this method, if needed (eg: return a string)
"""
if self.template is None:
raise NotImplementedError("Template is not defined.")
return self.template.render(
self, target_language=self.target_language, **self.namespace())
