however ...

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jazcyk
Posts: 385
Joined: Wed Sep 07, 2005 1:32 pm

captcha's

Post by jazcyk »

BTW: what is the idea in storing old captcha's in the database?
david_de
Posts: 72
Joined: Tue Dec 13, 2005 12:09 am

Post by david_de »

Is it to avoid repetition? I have 150 entries already and that is just testing on localhost. If so I would assume they could be dumped periodically?
matteo
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Joined: Sun Nov 20, 2005 6:53 pm
Location: Italy

Use them for selecting spammers network addresses

Post by matteo »

Hi all,
see one of my previous post for the main reason.
We've all the data for garbaging old data but we'd like to have feedbacks from the field about the range of this garbage: normally one expects a range of about 1 day old but we think that a good trade-off will be 1 week old.
The only way to have a confirmation about this heuristical estimation is to put the code on production and watching the growth of captcha records on average in different time ranges.
After this check we will activate the garbage of old captcha code records.
phpMyFAQ QA / Developer
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jazcyk
Posts: 385
Joined: Wed Sep 07, 2005 1:32 pm

OK ...

Post by jazcyk »

I remember ...

I have been testing captchas extensively by pressing 'refresh' - but without really posting/writing anything. Each time I do this a row in the captcha table is created I understand. If I did finish things nothing would be written (or it would be deleted again), I understand. Well, that is fine the way it is!


For the 'clean up of diskspace' I think a monthly basis would be fine.

I imagine two drop-downs: Month and Year - just like you have with an online Credit Card transaction. Option could be to delete session-logs (DB entries and log files), admin-log entries, captcha-log entries etc. from before that time (preferably you should have an option to check/uncheck for each of those categories). The SQL to do it like this will also be very simple ...
jazcyk
Posts: 385
Joined: Wed Sep 07, 2005 1:32 pm

and ...

Post by jazcyk »

.... maybe 'clear diskspace' should also display a captcha and maybe even prompt user for password (again) ....
david_de
Posts: 72
Joined: Tue Dec 13, 2005 12:09 am

Re: OK ...

Post by david_de »

jazcyk wrote:I remember ...

I have been testing captchas extensively by pressing 'refresh' - but without really posting/writing anything. ...
Same here and with what Matteo said it all makes sense now. The file would not be that large unless someone was doing something wrong bot or human. Some Captcha drop you if you fail so many times in a row I beleive. Not sure if that would be of any value here. Since visually impared or color blind have a hard time with Captcha they might have to make many attemts to make it, if they can at all.
jazcyk
Posts: 385
Joined: Wed Sep 07, 2005 1:32 pm

but then

Post by jazcyk »

Since visually impared or color blind have a hard time with Captcha they might have to make many attemts to make it, if they can at all.
Well .. then it would tell you that you captchas are too difficult to solve and you could consider 'turning down' for distortion and use more clear fonts.

You are right .. the graphical captcha concept is an accessibility issue! Imagine a phpmyfaq system 'FAQ for colorblind people' :(

I have once seen an option to have such captchas read through the PC-speaker system.
david_de
Posts: 72
Joined: Tue Dec 13, 2005 12:09 am

Re: Use them for selecting spammers network addresses

Post by david_de »

matteo wrote: After this check we will activate the garbage of old captcha code records.
What if you had it send an email to the same address it sends for a new question when it gets X amount of no pass captchas? That way if someone was attempting to crack it with a bot you would be notified.
Thorsten
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Location: #phpmyfaq
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Post by Thorsten »

Hi,

in version 1.6.1 it will be possible to disable the captcha functions. We're also working on a accessible captcha function.

bye
Thorsten
phpMyFAQ Maintainer and Lead Developer
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