Forum Discussion
add cookie in http response after 302 redirect
Hi,
i am load balancing three web servers that require authentication and persistence. all work fine until certain links return a 302 redirect. the connection is load balanced to a new member and the user has to authenticate again.
i am using cookie insert as a persistence profile.oneconnect is enabled. looking at the cookies sent by the BIG-IP in response to the new URL, i cannot see the BIG-IP cookie sent to the browser, i think this is because the UL has changed.
i am looking for assistance on an iRule that would extract the BIG-IP inserted cookie and add to the http response of the 302 redirect.
something like this:
when HTTP_RESPONSE {
if { [HTTP::status] == 302 } {
...
commands to extract BIG-IP inserted Cookie
HTTP::cookie insert ...insert cookie with same value.
3 Replies
Nicolas_MenantEmployee
Hi,
Could it be that your 302 redirect on another domain ?
If yes, you can update the domain data of the BIGIP cookie:
when HTTP_RESPONSE {
use this domain to set the domain attribute on the
BIG-IP persistence cookie
set my_domain ".example.com"
set my_pool "poolA"
loop through each of the cookies in the response
if {[HTTP::cookie count] > 0 } {
foreach aCookie [HTTP::cookie names] {
if the current cookie matches the format for the persistence cookie, modify it
if { $aCookie == BIGipServer$my_pool" } {
set the domain attribute on the persistence cookie
HTTP::cookie domain $aCookie $my_domain
}
}
}
}- thanks for the super fast response.
actually it is the same domain
here is the redirect:
http://domain:7777/edugate/faces/__ADFv__?_afPfm=1&_t=fred&_vir=/student/reps.jspx&loc=ar&_minWidth=800&_minHeight=600&_rtrnId=0
Redirect to http://domain:7777/edugate/student/reps/form5d41a113130d5f0a9105cd7b643299d1ffd275ed2bc2a.pdf - Nicolas_MenantHi,
it is strange. The BIGIP should insert the cookie persistence even on redirect ...
i did a test and i confirmed it:
GET / HTTP/1.1
Host: www.google.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.8.1.12) Gecko/20080201 Firefox/2.0.0.12
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: en-gb,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Cookie: PREF=ID=b72527e22a544d83:TM=1204207469:LM=1205017595:GM=1:S=f1MJLoItaQlNuQcj
HTTP/1.x 302 Found
Location: http://www.google.fr/
Cache-Control: private
Content-Type: text/html
Server: gws
Content-Length: 218
Date: Tue, 11 Mar 2008 12:44:39 GMT
Set-Cookie: BIGipServerPool_Google=1753699793.20480.0000; path=/
I think you may have an issue where the cookie is not stored correctly within your browser because the hostname of the website is not a FQDN. If you want to check the bigip insert correctly its persistence cookie within the http redirect you can do the following :
Could you try something like this:
when HTTP_REQUEST {
set request [HTTP::request]
}
when HTTP_RESPONSE {
loop through each of the cookies in the response
if {[HTTP::cookie count] > 0 } {
foreach aCookie [HTTP::cookie names] {
if the current cookie matches the format for the persistence cookie, modify it
if { $aCookie contains "BIGipServer"} {
set the domain attribute on the persistence cookie
log local0. "HTTP request: $resquest"
log local0. "HTTP cookie: [HTTP::cookie $aCookie]"
}
}
}
}
If you changed the cookie persistence name, please update the line $aCookie contains "BIGipServer"
Once this iRule is assigned to your VS, check your /var/log/ltm to see if it is inserted within your expected answer
