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Karthik,
On 5/13/2010 3:45 AM, Karthik Nanjangude wrote:
> Question : My web application uses "href" & "css based image's"
> for transferring the request from 1 page to another The problem is
> UserVisitor is clicking the image based href MULTIPLE TIMES (
> multiple clicks )
Ok.
> <a href="image.jsp?mult=1" id='submitButton1'
> onClick="this.onclick=function(){return false}" target="_self"
> class="buttonRedSmall"><span>Submit Form</span></a></td>
That's a nasty construct: when the user clicks the link, you change the
onClick handler? How about this:
<a href="image.jsp?mult=1" id='submitButton1'
onclick="return false;"
class="buttonRedSmall"><span>Submit Form</span></a>
BTW, the default target is "_self", so there's no need to specify that.
Unless there is more Javascript that you haven't posted, the above does
not submit a form.
> And causes the multiple form submits. How to prevent the same ?
Do you mean that it loads the URL twice?
> I googled / yahooed for Cross browser based tricks to disable the
> multiple request...Not luck so far ...
>
> Can some body help me if Tomcat has any special features to prevent
> this attack ....... :(
Please post some HTML code which shows a form submission and maybe we
can help. Note that this isn't exactly an "attack".
- -chris
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