Re: [securityfilter-devel] New feature proposal: IP address fixing

[Max C. <ma...@ma...>]

I think it would be wise to check for a specific value of the
parameter, so that the behavior isn't surprising if someone implements
a drop-down for it, the user picks "no", and then gets IP checking
anyway. Perhaps accept "1", "true", and "yes" case-insensitively to
turn it on, otherwise it's off. I don't recall what values the
"remember me" feature accepts, but this new feature should be
consistent.

-Max

On 12/12/07, Christopher Schultz <ch...@ch...> wrote:
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> All,
>
> I'm considering adding another feature to the 2.x version of
> securityfilter. Let me know what you think.
>
> Some web sites allow you to enable "IP address checking" or something
> sounding like that. Basically, your session will be tied to your IP
> address for extra security. That way, even if someone can guess your
> session id and submit it along with a request, they can't hijack your
> session.
>
> This will, or course, be optional to the user using the website. Some
> services like AOL use proxies for dialup traffic and that really screws
> things up when it comes to IP validation.
>
> My plan is simply to store the remote user's IP address in the session
> and check against that as part of the authorization step (actually, it's
> before the authorization, but after authentication because that is tied
> to the realm, and I'd like to do this checking in a single place).
>
> I'll invent a default check-ip-address request parameter name and make
> it changeable via either a filter config-param or through the XML
> configuration file. (I think for sf 2.0 I'll go with a filter config
> param and for a future version, I'll go for an XML element, but comments
> are appreciated).
>
> If that parameter has any value during login (or a specific value... I'd
> appreciate some feedback here), then we'll turn on this feature for the
> current session, and it will stay enabled until the session expires.
>
> Any feedback on this is certainly welcome.
>
> Thanks,
> - -chris
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