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Auto submissions protection for HTML forms

 
Panda Mima
Greenhorn
Posts: 14
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Hello there,

I've asked this question already in Spring's forum, but I'll need this for my old Struts application, so I am asking it here too.

I need to develop Web application and I do need to have this nice feature for bunch of HTML forms which prevents auto submissions.

I mean I need this like question "type number which you see on the image", and it will not allow you to submit with properly typed image.

So the question is -- is there are any specific separate open source framework for this feauture?

Any advice will be helpful!!! Thanks!
 
Merrill Higginson
Ranch Hand
Posts: 4864
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The name for this type of control is "captcha". Try this link for one such project.
 
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