Forum Discussion
____177053
Cirrus
CirrusHow to remove the last IP from X-Forwarded-For
If there's multiple IP address in X-Forwarded-For,how to remove the last IP address?
cjunior
Nacreous
NacreousHello,
Given the XFF in general list format, I would do so:Incoming: X-Forwarded-For: 10.10.10.10, 10.10.10.20, 10.10.10.30
Outgoing: X-Forwarded-For: 10.10.10.10, 10.10.10.20
Sintax:
when HTTP_REQUEST {
if { [HTTP::header exists X-Forwarded-For] && [HTTP::header X-Forwarded-For] contains "," } {
set xff [HTTP::header X-Forwarded-For]
HTTP::header replace X-Forwarded-For [string range $xff 0 [expr {[string last , $xff]-1}]]
}
}
Regards.
