Forum Discussion
DJDX21_252164
Cirrus
CirrusiRule to rewrite cookie domain to toplevel domain
I have to domains,
1. xyz.abc.com
2. xyz.abbc.com
Now when I am trying to change the domain of the cookie at the toplevel the below iRule isn't working.
when HTTP_RESPONSE {
set a ".abc.com"
set...
Finally I was able to set the cookie domain to toplevel by using the following iRule. Cookies are set to toplevel domain now by using HTTP::host and comparing directly with the domain values I have. What do you think about the following iRule? Any flaws?
when HTTP_REQUEST { log local0. "Cookie names in received request: [HTTP::cookie names] from IP: [IP::local_addr]" set httphost [HTTP::host] } when HTTP_RESPONSE { foreach mycookie [HTTP::cookie names] { log local0. "Host : $httphost" if { $httphost ends_with ".abc.com" } { HTTP::cookie domain $mycookie ".abc.com" } elseif { $httphost ends_with ".abbc.com" } { HTTP::cookie domain $mycookie ".abbc.com" } else { log local0. "Not a single cookie domain matched :" } } }
Sylvain_85827Cirrus
CirrusI think he could not use such iRules HTTP functions if he did not had http profile applied, but better if DJDX21 can confirm that point, and good point pointing with eventual HTTPS.
DJDX21, according to your example, you have entered:
set b ".abbc.local"
instead of:
set b ".abbc.com"
Likely, if your problem does not come from missing http or ssl client profiles, your if statements most probably never match. You can simply check that with logging like for instance:
when HTTP_REQUEST {
log local0. "Cookie names in received request: [HTTP::cookie names] from IP: [IP::local_addr]"
}
when HTTP_RESPONSE {
set a ".abc.com"
set b ".abbc.com"
foreach mycookie [HTTP::cookie names] {
set cookieDomain [HTTP::cookie domain $mycookie]
if { $cookieDomain contains $a } {
log local0. "Cookie domain matched: $a"
HTTP::cookie domain $mycookie $a
}
elseif { $cookieDomain contains $b } {
log local0. "Cookie domain matched: $a"
HTTP::cookie domain $mycookie $b
}
else {
log local0. "Not a single cookie domain matched :/"
}
}
}
Note I did not test this iRule on real traffic but only validates the compilation on a VM.
Good luck
DJDX21_252164Cirrus
Cirrus@Sylvain. Thanks for the advice I tried logging and it seems "Not a single cookie domain matched :\" But it should match because when for only abc.com works.
when HTTP_RESPONSE {
foreach mycookie [HTTP::cookie names] {
HTTP::cookie domain $mycookie ".abc.com"
}
}