70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
# Captcha validator, see captcha.txt for design notes.
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from persistent import Persistent
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from plone.app.discussion.browser.comments import CommentForm
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from plone.app.discussion.comment import Comment
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from plone.app.discussion.interfaces import ICaptcha
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from plone.app.discussion.interfaces import IDiscussionSettings
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from plone.registry.interfaces import IRegistry
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from plone.z3cform.fieldsets import extensible
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from Products.CMFCore.utils import getToolByName
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from z3c.form import interfaces
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from z3c.form.field import Fields
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from zope import interface
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from zope.annotation import factory
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from zope.component import adapter
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from zope.component import queryUtility
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from zope.interface import Interface
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from zope.publisher.interfaces.browser import IDefaultBrowserLayer
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@adapter(Comment)
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@interface.implementer(ICaptcha)
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class Captcha(Persistent):
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"""Captcha input field."""
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captcha = ""
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Captcha = factory(Captcha)
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# context, request, form
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@adapter(Interface, IDefaultBrowserLayer, CommentForm)
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class CaptchaExtender(extensible.FormExtender):
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"""Extends the comment form with a Captcha. This Captcha extender is only
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registered when a plugin is installed that provides the
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"plone.app.discussion-captcha" feature.
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"""
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fields = Fields(ICaptcha)
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def __init__(self, context, request, form):
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self.context = context
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self.request = request
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self.form = form
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registry = queryUtility(IRegistry)
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settings = registry.forInterface(IDiscussionSettings, check=False)
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self.captcha = settings.captcha
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portal_membership = getToolByName(self.context, "portal_membership")
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self.isAnon = portal_membership.isAnonymousUser()
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def update(self):
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if self.captcha != "disabled" and self.isAnon:
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# Add a captcha field if captcha is enabled in the registry
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self.add(ICaptcha, prefix="")
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if self.captcha == "captcha":
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from plone.formwidget.captcha import CaptchaFieldWidget
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self.form.fields["captcha"].widgetFactory = CaptchaFieldWidget
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elif self.captcha == "recaptcha":
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from plone.formwidget.recaptcha import ReCaptchaFieldWidget
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self.form.fields["captcha"].widgetFactory = ReCaptchaFieldWidget
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elif self.captcha == "norobots":
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from collective.z3cform.norobots import NorobotsFieldWidget
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self.form.fields["captcha"].widgetFactory = NorobotsFieldWidget
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else:
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self.form.fields["captcha"].mode = interfaces.HIDDEN_MODE
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