Unless this behaviour has changed in MX, an isDefined() performed on cgi
variables will aways respond TRUE even if the variable isn't defined.
I just checked this, and yes, the following always returns 'Exists', even
though the variable doesn't.
<cfif isDefined("cgi.momma_said_knock_you_out")>
Exists.
<cfelse>
Doesn't Exist.
</cfif>
you should use len(trim(cgi.my_cgi_variable)) instead.
> -----Original Message-----
> From: Allan Cliff [mailto:[EMAIL PROTECTED]
> Sent: 28 March 2003 09:42
> To: CF - List
> Subject: [ cf-dev ] CGI variables in debugging
>
>
> HTTP_X_FORWARDED_FOR and REMOTE_ADDR
>
> I have asked this before but with no reply.
> When doing IP logging and restricted access to control panels
> / files etc I ask people to register their IP.
>
> Now what a person thinks their IP is may not always be the
> same as REMOTE_ADDR as sometimes proxies are used a nd the
> REAL IP is in the variable HTTP_X_FORWARDED_FOR.
>
> Any comments on how anyone has got around this?
>
> If I say
>
> <CFIF IsDefined("HTTP_X_FORWARDED_FOR")><CFSET ClientIP =
> HTTP_X_FORWARDED_FOR>
> <CFELSE><CFSET ClientIP = REMOTE_ADDR>
> </CFIF>
>
> do you think there will be any problems?
>
> Thanks
>
> Allan
>
>
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