For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Robert_47833's avatar
Robert_47833
Icon for Altostratus rankAltostratus
Apr 16, 2012

something interesting in if {if } else

irule

 

if {($uri matches "/cjj" or $uri matches "/cjj/") } {

 

if { [HTTP::host] ends_with ".co.uk" } {

 

HTTP::redirect "http://[HTTP::host]/error.html"

 

return

 

}

 

}

 

else {

 

pool xxxx

 

}

 

 

http://www.ss.com/cjj doesn't hit pool xxxx,why?

 

 

this url doesn't match ".co.uk",why irule doesn't pass it to else?
application delivery
dev
devops
iRules

3 Replies

  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Apr 16, 2012
    Hi Jucao,

    www.ss.com/cjj would match the first if but not the second. So it wouldn't hit the pool statement. If you want to use that pool for www.ss.com/cjj, you could try this: 

    
if {($uri matches "/cjj" or $uri matches "/cjj/") } {
if { [HTTP::host] ends_with ".co.uk" } { 
HTTP::redirect "http://[HTTP::host]/error.html" 
return 
} else {
pool xxxx
}
} else {
pool xxxx
}

    Aaron
  • Robert_47833's avatar
    Robert_47833
    Icon for Altostratus rankAltostratus
    Apr 16, 2012
    ok,I see

     

    once /cjj is matched,but no action is in irule,F5 will send fallback host(fallback host is configured) to client,right?
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Apr 16, 2012
    yes 

    [root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   destination 172.28.19.79:80
   ip protocol 6
   rules myrule
   profiles {
      myhttp {}
      tcp {}
   }
}
[root@ve1023:Active] config  b profile myhttp list
profile http myhttp {
   fallback "http://www.google.com"
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
   set uri [HTTP::uri]
   if {($uri matches "/cjj" or $uri matches "/cjj/") } {
      if { [HTTP::host] ends_with ".co.uk" } {
         HTTP::redirect "http://[HTTP::host]/error.html"
         return
      }
   } else {
      pool foo
   }
}
}
[root@ve1023:Active] config  curl -I http://www.ss.com/cjj
HTTP/1.0 302 Found
Location: http://www.google.com
Connection: close