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Zev's avatar
Zev
Icon for Altostratus rankAltostratus
May 09, 2018

Redirect/URI change based on numeric variable

I've had what I think is an interesting customer request. Although this may be a simple redirect it seems more complex and haven't been able to put all the pieces together. The customer has a URL:

 

https://x.123.com/123.asp?r=&p=https%3A//site.com/&llactid=34567&llnocookies=undefined

 

There is a distinct ID in URIs, 34567 in this case, and we wish all IDs greater than 29999 but not equal to 30484 to be altered and redirected to:

 

https://y.abc.com/trackalyze.asp?r=&p=https%3A//site.com/&llactid=34567&llnocookies=undefined

 

in order to route/balance this traffic as it hits BigIP. All IDs below that threshold would remain unchanged. Is a policy best for this or can this be done syntactically in an iRule? I've been trying simple if-then [HTTP::uri] logic but not sure how to account for the numeric variable and hitting deadends. I guess anything can be done. Many thanks!

 

x <= 29999 including 30484 go to site A/uri

 

x > 29999 /= 30484 go to site B/uri

 

cloud
devops
iRules
LTM
  • Niels_van_Sluis's avatar
    Niels_van_Sluis
    Icon for MVP rankMVP
    May 09, 2018

    This should work:

    when HTTP_REQUEST {
    if { ([HTTP::host] eq "x.123.com") && [HTTP::uri] starts_with "/123.asp" } {
        set llactid [URI::query [HTTP::uri] "llactid"]
        if { ($llactid ne 30484) && $llactid > 29999 } {
            HTTP::redirect "https://y.abc.com/trackalyze.asp?r=&p=https%3A//site.com/&llactid=$llactid&llnocookies=undefined"
        }
    }
}