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Joe_Erchul_4263's avatar
Joe_Erchul_4263
Icon for Nimbostratus rankNimbostratus
Aug 11, 2017

Need to grab variable data from HTTP::Location, then append that to the HTTP::Location

Gang,

 

I have an opportunity to solve yet another crapplication issue. The owners of a website need to have variable information read from their HTTP::Location header, then extracted and appended to the same HTTP::Location header so that the ingesting web service can properly process the incoming header information. Now that you're all confused, here's an example of what I need done:

 

This: Location: https://www.abc.com/lotsastuff/lotsastuff/lotsastuff/&redirect_uri=http%3A%2F%2Fwww.def.com%2F12345%2Fredirect_uri&nonce=Czh6KHqfsh5YLBV37JD4Upjsx44xAyQ-ODTKkP9HdGU

 

Needs to change to this: Location: https://www.abc.com/lotsastuff/lotsastuff/lotsastuff/&redirect_uri=http%3A%2F%2Fwww.def.com%2F12345%2Fredirect_uri&nonce=Czh6KHqfsh5YLBV37JD4Upjsx44xAyQ-ODTKkP9HdGU&locale=12345

 

The "12345" is pulled from the five characters following "; That "12345" will change, but the "; will NOT change. I just need to grab that information from the five characters following "; and append that as the "locale=12345" to the header and send it out.

 

This will be in an HTTP_RESPONSE iRule.

 

I can append static information ("&stuff=1", in this case) using the following iRule: when HTTP_RESPONSE { if { [HTTP::is_redirect] && [string tolower [HTTP::header Location]] contains "; } { HTTP::header replace Location "[HTTP::header value Location]&stuff=1" } }

 

Now I need to extend that to grab variable information from the existing Location header.

 

Any help you can provide is appreciated. Please let me know if I can help clarify my ask in any way.

 

Thanks.

 

Joe

 

application delivery
iRules

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  • Stanislas_Piro2's avatar
    Stanislas_Piro2
    Icon for Cumulonimbus rankCumulonimbus
    Aug 11, 2017

    Hi,

     

    you can try this code:

     

    when HTTP_RESPONSE {
    if { [HTTP::is_redirect] && [string tolower [HTTP::header Location]] contains "www.def.com" } {
        set redirect_uri [URI::decode [URI::query [HTTP::uri] redirect_uri]]
        scan $redirect_uri {http://www.def.com/%[^/]/} locale
        HTTP::header replace Location "[HTTP::header value Location]&locale=$locale"
    }
}