def extractCredentials(self, request):
"""Extracts credentials from a session if they exist."""
if not IHTTPRequest.providedBy(request):
return None
sessionData = ISession(request)[
'zope.app.authentication.browserplugins']
login = request.get(self.loginfield, None)
password = request.get(self.passwordfield, None)
if login and password:
credentials = SessionCredentials(login, password)
sessionData['credentials'] = credentials
credentials = sessionData.get('credentials', None)
if not credentials:
return None
return {'login': credentials.getLogin(),
'password': credentials.getPassword()}
def update(self):
remember = self.request.form.get('worldcookery.remember')
if remember is not None:
intid = getUtility(IIntIds).queryId(self.context)
if intid is None:
raise UserError(_(u"This object cannot be remembered."))
session = ISession(self.request)[KEY]
remembered = session.setdefault('remembered', PersistentList())
if intid in remembered:
raise UserError(_(u"This object is already remembered."))
remembered.append(intid)
forget = self.request.form.get('worldcookery.forget')
if forget is not None:
forget = int(forget)
session = ISession(self.request)[KEY]
remembered = session.get('remembered', [])
if forget not in remembered:
raise UserError(_(u"Cannot forget an object that was "
u"not remembered."))
remembered.remove(forget)
def getRememberedItems(self):
intids = getUtility(IIntIds)
session = ISession(self.request)[KEY]
remembered = session.get('remembered', [])
return ({'id': intid, 'object': intids.queryObject(intid)}
for intid in remembered)
