Hi, thanks I'll take a look at the access logs and see what I can find, but
in the mean time this is nothing to be concerned about?

On Tue, Nov 18, 2014 at 9:06 AM, Antal van Kalleveen <an...@vankalleveen.net
> wrote:

> Hi,
>
> Someone or something (bot) posted a form with modified data, presumably to
> post something that would otherwise not go through.
> But as Tapestry validates the posted values with a predefined HMAC and it
> doesnt match you get this error.
>
> Maybe look at ur access log to see who or what is doing this ?
>
> Antal
>
> ---- OriginalMessage ----
> >From: "George Christman" <gchrist...@cardaddy.com>
> >To: "Tapestry users" <users@tapestry.apache.org>
> >Sent: Tue, Nov 18, 2014, 14:58
> >Subject: HMAC Tampered with error
> >
> >Hi guys, I'm seeing this exception come across more often lately. I guess
> I
> >don't fully understand what it means or how to produce it. Could someone
> >tell me how to produce this exception so that I can figure out how to fix
> >it?
> >
> >mozilla/5.0 (iphone; cpu iphone os 8_1 like mac os x) applewebkit/600.1.4
> >(khtml, like gecko) version/8.0 mobile/12b411 safari/600.1.4
> >org.apache.tapestry5.ioc.internal.OperationException: java.io.IOException:
> >Client data associated with the current request appears to have been
> >tampered with (the HMAC signature does not match).
> >
> >95 more Caused by: java.lang.RuntimeException: java.io.IOException: Client
> >data associated with the current request appears to have been tampered
> with
> >(the HMAC signature does not match). at
>
> >org.apache.tapestry5.internal.services.ClientDataEncoderImpl.decodeClientData(ClientDataEncoderImpl.java:115)
> >at $ClientDataEncoder_1193acae4d.decodeClientData(Unknown Source) at
>
> >org.apache.tapestry5.corelib.components.Form.executeStoredActions(Form.java:720)
> >... 99 more Caused by: java.io.IOException: Client data associated with
> the
> >current request appears to have been tampered with (the HMAC signature
> does
> >not match). at
>
> >org.apache.tapestry5.internal.services.ClientDataEncoderImpl.validateHMAC(ClientDataEncoderImpl.java:131)
> >at
>
> >org.apache.tapestry5.internal.services.ClientDataEncoderImpl.decodeClientData(ClientDataEncoderImpl.java:104)
> >... 101 more
> >
>
>
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-- 
George Christman
CEO
www.CarDaddy.com
P.O. Box 735
Johnstown, New York

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