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collective.captcha-1.7
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Stateless captcha generation and verification
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | collective.captcha-1.7 |
| نام | collective.captcha |
| نسخه کتابخانه | 1.7 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Jarn |
| ایمیل نویسنده | info@jarn.com |
| آدرس صفحه اصلی | https://github.com/mjpieters/collective.captcha |
| آدرس اینترنتی | https://pypi.org/project/collective.captcha/ |
| مجوز | GPL |
-----------------------------
Captchas without server state
-----------------------------
A view to generate a captcha image and/or wav file, and to verify user input
against it.
A cookie is used to transfer state from one request to the next. The state is
used, together with a server-side secret, to create a random string of
characters, which in turn is displayed as a captcha image, or transformed to
an audio file. Verification happens case-insensitively.
Note that the captcha 'word' is only usable for 5-10 minutes, after which the
view will not accept it any more. Moreover, a different word will be generated
for a given session key every 5 minutes.
This makes these captchas replayable for up to 10 minutes if a determined
user keeps sending the same session id. Because of the server-secret though,
captchas are not transferrable between sites.
Installing
----------
This package requires Plone 2.5 or later, and plone.keyring 1.1 or later.
Installing without buildout
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Install this package in either your system path packages or in the lib/python
directory of your Zope instance. You can do this using either easy_install or
via the setup.py script. You'll also need to install plone.keyring in the same
fashion.
After installing the package it needs to be registered in your Zope instance.
This can be done by putting a collective.captcha-configure.zcml file in the
etc/package-includes directory with this content::
<include package="collective.captcha" />
or, alternatively, you can add that line to the configure.zcml in a package or
Product that is already registered.
Installing with buildout
~~~~~~~~~~~~~~~~~~~~~~~~
If you are using `buildout`_ to manage your instance installing
collective.captcha is even simpler. You can install collective.captcha by
adding it to the eggs line for your instance::
[instance]
eggs = collective.captcha
zcml = collective.captcha
The last line tells buildout to generate a zcml snippet that tells Zope
to configure collective.captcha.
If another package depends on the collective.captcha egg or includes its zcml
directly you do not need to specify anything in the buildout configuration:
buildout will detect this automatically.
After updating the configuration you need to run the ''bin/buildout'', which
will take care of updating your system, including installing the plone.keyring
dependency.
.. _buildout: http://pypi.python.org/pypi/zc.buildout
Registering plone.keyring KeyManager
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
On any Plone version prior to 3.1, you'll need to make sure that the plone.keyring KeyManager utility has been registered. In the Zope ZMI, use the portal_setup tool to run the plone.keyring KeyManager registration profile.
Using the view
--------------
See the captcha.txt doctest in the collective.captcha.browser package, as well
as captcha.txt in collective.captcha.form.
Copyright and credits
----------------------
collective.captcha is copyright 2007 by `Jarn`_ (formerly known as Plone
Solutions), and is licensed under the GPL. See LICENSE.txt for details.
It was written by Martijn Pieters.
.. _Jarn: http://www.jarn.com/
--------------------------
collective.captcha changes
--------------------------
1.7 (2012-02-27)
----------------
- Disuse 'zope.testing.doctest' in favor of stdlib's 'doctest'.
[tseaver]
- Suppress 'sha' deprecation under Python 2.6+
[tseaver]
- Suppress 'Globals.package_home' deprecation under Zope 2.12+.
[tseaver]
- Add `verify` to the list of allowed attributes on the Captcha
view, allowing restricted code to verify submitted captchas.
[mj]
- Better session id generation & redundant sha1 removal.
[serhat]
- Increase captcha image specling from 0.3 to 1.5
[serhat]
1.6 (2011-05-29)
----------------
- Correctly calculate the word for the next time period. Fixes
http://plone.org/products/collective.captcha/issues/4.
[mj]
- Adjust imports for Plone 4.1 compatibility.
[redcor]
- Explicitely define 'image' and 'audio' as publishable.
[cillian]
1.5 (2010-01-11)
----------------
- Fixed http://plone.org/products/collective.captcha/issues/3.
[stefan]
1.4 (2008-05-02)
----------------
- Switched to using plone.keyring to provide the secret.
1.3 (2008-02-22)
----------------
- SkimpyGimpy now does have an egg, thanks to Reed O'Brien! Updated
installation instructions and setup.py.
- Update test to reflect reduced character set used.
1.2 (2007-12-13)
----------------
- Add a captcha field and widget for zope.formlib.
- Reduced the characters used to generate the captcha to uppercase letters and
numbers only; user testing showed that even humans had trouble solving the
captchas.
1.1 (2007-11-21)
----------------
- Delete the captcha cookie from the response if one is present to
prevent premature expiration. This would happen when creating a
new captcha after verification (because verification failed or
the form would have to be redisplayed for other reasons). Thanks to
David Glick for pointing this out.
1.0 (2007-11-19)
----------------
- Initial release
نحوه نصب
نصب پکیج whl collective.captcha-1.7:
pip install collective.captcha-1.7.whl
نصب پکیج tar.gz collective.captcha-1.7:
pip install collective.captcha-1.7.tar.gz