Forum Discussion
iRule When HTTP Response Behavior
I'm trying to do a thing where if the F5 detects that the pool does not have active members, it will redirect the users to a specific URL but in addition it will also delete a session cookie.
I learnt from another question here on DevCentral that the
HTTP::cookie remove
needs to be used in the HTTP Response section for it to remove cookies from the user's browser.
So the question is, would the
HTTP::respond
command triggered from the iRule also trigger the when HTTP_RESPONSE
section of the same iRule?
when HTTP_REQUEST {
...
if { [active_members http_pool] = 0 } {
HTTP::respond 302 noserver location "https://www.mywebsite.com"
set pool_status "nomember"
}
}
when HTTP_RESPONSE {
if { $pool_status eq "nomember" } {
HTTP::cookie remove "sessionID"
}
}
- JGCumulonimbus
There is an example of how to do this at: https://devcentral.f5.com/wiki/iRules.HTTP__respond.ashx.
- Stanislas_Piro2Cumulonimbus
The remove command will remove the cookie from the response, not ask the client to remove it from it’s cache...
To remove a cookie from client cache, you must set an expiration time before current time... the best practice is to set it to 1970!
when HTTP_REQUEST { ... if { [active_members http_pool] = 0 } { HTTP::respond 302 noserver location "https://www.mywebsite.com" Set-Cookie "sessionID=path=/; Expires=Thu, 01-Jan-1970 00:00:00 GMT" } }
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