Is anybody aware of a ready to go Zope product for using creating/using Captcha?
I am not sure if there is a ready product for this, but is there a way in zope to generate an image dynamically? does anyone know how? if there is, any python implementation of captcha can be adapted to zope i think. konstanitn 2005/9/13, Brian Sullivan <briansullivan@gmail.com>:
Is anybody aware of a ready to go Zope product for using creating/using Captcha? _______________________________________________ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
From: "akonsu" <akonsu@gmail.com>
I am not sure if there is a ready product for this, but is there a way in zope to generate an image dynamically? does anyone know how? if there is, any python implementation of captcha can be adapted to zope
Google 'python image library' (PIL) Jonathan
thank you. my question was how to do it from zope. namely, how to set request headers/contents, etc. from another list i found this link that has some image generating code: http://cvs.bluedynamics.org/viewcvs/BlueTexima/. hope this will help others. konstantin 2005/9/14, Jonathan <dev101@magma.ca>:
From: "akonsu" <akonsu@gmail.com>
I am not sure if there is a ready product for this, but is there a way in zope to generate an image dynamically? does anyone know how? if there is, any python implementation of captcha can be adapted to zope
Google 'python image library' (PIL)
Jonathan
Am Mittwoch, den 14.09.2005, 13:37 -0700 schrieb akonsu:
thank you. my question was how to do it from zope. namely, how to set request headers/contents, etc. from another list i found this link that has some image generating code: http://cvs.bluedynamics.org/viewcvs/BlueTexima/. hope this will help others.
You could just have written you are looking for an image-button generator. And I would point you to the (sometimes) wonderful world of CSS as a better alternative to this :-)
could you explain how one can use CSS to generate images during request processing? or am i missing something? 2005/9/14, Tino Wildenhain <tino@wildenhain.de>:
Am Mittwoch, den 14.09.2005, 13:37 -0700 schrieb akonsu:
thank you. my question was how to do it from zope. namely, how to set request headers/contents, etc. from another list i found this link that has some image generating code: http://cvs.bluedynamics.org/viewcvs/BlueTexima/. hope this will help others.
You could just have written you are looking for an image-button generator. And I would point you to the (sometimes) wonderful world of CSS as a better alternative to this :-)
Am Mittwoch, den 14.09.2005, 13:48 -0700 schrieb akonsu:
could you explain how one can use CSS to generate images during request processing? or am i missing something?
No it cant - you cannot use it to obfuscate text like your captcha product seems to do. But some people are using text-to-image products to render buttons and this is where you can use CSS instead. Btw. Text-to-image obfuscation makes it harder for machines to automatically fill out forms but not impossible.
But some people are using text-to-image products to render buttons and this is where you can use CSS instead.
ok, i see.
Btw. Text-to-image obfuscation makes it harder for machines to automatically fill out forms but not impossible.
of course ;-) this is just to prevent impossible amounts of spam. it is ok if it fails once in a while. so far i have not heard about a reliable algorithm for accurate image recognition.
On 9/14/05, akonsu <akonsu@gmail.com> wrote:
I am not sure if there is a ready product for this, but is there a way in zope to generate an image dynamically? does anyone know how? if there is, any python implementation of captcha can be adapted to zope i think.
I found this: http://captchas.net/ http://captchas.net/sample/python/ It seems they provide the service of creating the graphic. and this http://svn.navi.cx/misc/trunk/pycaptcha/README that uses the Python Imaging Library and so is self contained. Has anyone created a Zope product based on either of those?
as i said earlier, http://cvs.bluedynamics.org/viewcvs/BlueTexima/ seems to have code that dynamically creates an image object. would this help? 2005/9/14, Brian Sullivan <briansullivan@gmail.com>:
Has anyone created a Zope product based on either of those?
On 9/14/05, akonsu <akonsu@gmail.com> wrote:
as i said earlier, http://cvs.bluedynamics.org/viewcvs/BlueTexima/ seems to have code that dynamically creates an image object. would this help?
Possibly but that is only part of the puzzle - usually the image has distorted text on a mottled background to further complicate and confuse automatic readers and force a human read.
well, i mean, given the python implementations that are available, that code on this site can be adapted and used to generate a captcha image object. 2005/9/14, Brian Sullivan <briansullivan@gmail.com>:
On 9/14/05, akonsu <akonsu@gmail.com> wrote:
as i said earlier, http://cvs.bluedynamics.org/viewcvs/BlueTexima/ seems to have code that dynamically creates an image object. would this help?
Possibly but that is only part of the puzzle - usually the image has distorted text on a mottled background to further complicate and confuse automatic readers and force a human read.
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participants (4)
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akonsu -
Brian Sullivan -
Jonathan -
Tino Wildenhain