Human readable captcha for z3cform
Project description
Overview
collective.z3cform.norobots provides a “human” captcha widget based on a list of question/answer(s).
This captcha can be used :
as a plone.app.discussion (Plone Discussions) captcha plugin
as a z3c form field
as a PloneFormGen field with collective.pfg.norobots
The widget is based on z3c.form.TextWidget.
Since version 1.4, questions configuration uses a dedicated control panel (using plone.app.registry) instead of a simple properties sheet. An upgrade step provides migration from earlier versions.
Interface is translated in the following languages: Czech [cs], Danish [da], German [de], Basque [eu], Spanish [es], Suomeksi [fi], French [fr], Dutch [nl] and Simplified Chinese [zh_CN].
Requirements
I have tested this release with Plone 4.3a1, Plone 4.2.1.1 and Plone 4.1.6 (http://plone.org/products/plone).
See previous releases for Plone 4.0.
Screenshot
Installation
Getting the module
Add collective.z3cform.norobots to your plone.recipe.zope2instance buildout section e.g.:
[instance] ... eggs = Plone ... collective.z3cform.norobots ... zcml = ... collective.z3cform.norobots
Or, you can add it as a dependency on your own product setup.py:
install_requires=[ ... 'collective.z3cform.norobots', ],
Enabling the module
In the Addons control panel, install “Norobots captcha field (collective.z3cform.norobots)”.
Add a new question
In the “Norobots widget settings” control panel, add a new line in the field “Norobots question::answer”:
your_question::the_answer Example : What is 10 + 12 ?::22
Answer can contain multiple values delimited by semicolon:
your_question::the_answer;another_answer Example : What is 5 + 5 ?::10;ten
Quickly test ?
Download collective.z3cform.norobots and use virtualenv and buildout to test the module:
easy_install virtualenv cd collective.z3cform.norobots virtualenv . source bin/activate (collective.z3cform.norobots) easy_install zc.buildout !!! check the buildout config file ``test-plone-base.cfg`` before running !!! (collective.z3cform.norobots) ln -s test-plone-4.2.x.cfg buildout.cfg (collective.z3cform.norobots) python bootstrap.py (collective.z3cform.norobots) bin/buildout [...] be patient... [...] (collective.z3cform.norobots) ./bin/instance fg
Go to http://localhost:8080, add a new Plone Site and install collective.z3cform.norobots (see above).
Launch tests:
(collective.z3cform.norobots) ./bin/test -s collective.z3cform.norobots
Launch code coverage:
(collective.z3cform.norobots) bin/coverage (collective.z3cform.norobots) bin/report And open with a browser htmlcov/index.html
Usage in a z3c form
You can use this widget setting the “widgetFactory” property of a form field:
from zope import interface, schema from z3c.form import interfaces, form, field, button, validator from plone.app.z3cform.layout import wrap_form from collective.z3cform.norobots.i18n import MessageFactory as _ from collective.z3cform.norobots.widget import NorobotsFieldWidget from collective.z3cform.norobots.validator import NorobotsValidator class INorobotsForm(interface.Interface): norobots = schema.TextLine(title=_(u'Are you a human ?'), description=_(u'In order to avoid spam, please answer the question below.'), required=True) class NorobotsForm(form.Form): fields = field.Fields(INorobotsForm) fields['norobots'].widgetFactory = NorobotsFieldWidget # wrap the form with plone.app.z3cform's Form wrapper NorobotsFormView = wrap_form(NorobotsForm) # Register Norobots validator for the correponding field in the IContactInfo interface validator.WidgetValidatorDiscriminators(NorobotsValidator, field=INorobotsForm['norobots'])
for more information see contact_info.py in the plone_forms directory.
Possible problems
I have the following error when launching the tests: “ImportError: No module named lxml.html” => In order to run the tests you need lxml. You can add for example “z3c.form [test]” to your buildout. See http://plone.293351.n2.nabble.com/Custom-Dexterity-Widgets-td5594532.html for more details.
Credits
Source code
Source code is hosted on Github.
How to contribute and submit a patch ?
Source code and an issue tracker is hosted on Github.
Contributors
Sylvain Boureliou [sylvainb]
Mikel Larreategi [erral]
Aijun Jian
Radim Novotny [naro]
Thomas Clement Mogensen [tmog]
Peter Mathis [petschki]
Petri Savolainen [petri]
Helmut Toplitzer
Changelog
1.4.2.1 (2013-01-17)
add Dutch Translations [maartenkling]
1.4.2 (2012-10-03)
Add compatibility for collective.pfg.norobots : allow to use the Norobots captcha with PloneFormGen. [sylvainb]
Fix widget template to allow good redirection when the answer is bad in plone.app.discussion forms. [sylvainb]
Move source code in “src” directory. [sylvainb]
Update tests, buildouts and add test coverage. Plone 4.0 is no longer supported. [sylvainb]
Change MessageFactory name to get translations picked up by Plone [erral]
Updated basque translation and added Spanish translation. [erral]
1.4.1 (2012-07-02)
Fix Unicode error when a question contains non-ascii char. [sylvainb, Helmut Toplitzer]
1.4 (2012-06-22)
Use plone.app.registry instead of a property sheet for the questions configuration. Questions can now be added using a dedicated control panel. [sylvainb]
Add an upgrade step (1 -> 2) to copy questions from the old properties sheet to plone.app.registry. [sylvainb]
Fix the widget template for use with plone.app.discussion (there was no redirection to the comment form when only the captcha is wrong). [sylvainb]
Update translations (some new strings added). [sylvainb]
Add Basque translation [erral]
1.3.1 (2012-03-28)
Add simplified chinese translation [Aijun Jian]
1.3 (2012-02-27)
Allow multiple answers for a question [naro]
Added danish translation [tmog]
1.2.1 (2010-11-05)
Added german translation [petschki]
1.2 (2010-10-31)
Fix tests for Plone 4 [sylvainb]
Added Czech translation [naro]
1.1 (2010-09-15)
Support for using as a plone.app.discussion captcha plugin (Plone 4) [Petri Savolainen]
Finnish translations [Petri Savolainen]
1.0 (2010-01-13)
Initial release [sylvainb]
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