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GabrielDeLeon_1's avatar
GabrielDeLeon_1
Icon for Nimbostratus rankNimbostratus
Sep 26, 2014

IRULE - Search in http query and set two variables

Good afternoon, sorry for my English.

 

I need to store two variables from a uniq query. For example:

 

www.example.com/test.jpg?aserver=2&bserver=3

 

I need a irule looking aserver value and save in variable val_Aserver. And too looking bserver value and save in another value, val_Bserver .

 

I've been looking and can not find how to do it.

 

Right now I have the following code:

 

set val_Aserver [string range [HTTP::uri] [expr {[string first "aserver=" [HTTP::uri]] + 8}] end]

set val_Bserver [string range [HTTP::uri] [expr {[string first "bserver=" [HTTP::uri]] + 8}] end]

This only just save me the first value that I pass from the query,

 

If I put www.example.com/test.jpg?aserver=2&bserver=3, correctly save val_Aserver is 2, but the val_Bserver is empty.

 

If I put www.example.com/test.jpg?bserver=5&aserver=4 , correctly save val_Bserver is 5, but the val_Aserver is empty.

 

I'm going crazy, someone can help me please?

 

Thank you very much.

 

APM
application delivery
BIG-IQ
devops
irule
iRules
security
string

1 Reply

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  • Arnaud_Lemaire's avatar
    Arnaud_Lemaire
    Icon for Employee rankEmployee
    Sep 26, 2014

    Hello you can get inspiration from this one : https://devcentral.f5.com/wiki/iRules.URIInterrogation.ashx

    when HTTP_REQUEST {
    set namevals [split [HTTP::query] "&"]
    for {set i 0} {$i < [llength $namevals]} {incr i} {
        set params [split [lindex $namevals $i] "="]
        set pnum [expr $i+1]
        log local0. "Param\[$pnum\]: [lindex $params 0]"
        log local0. "Value\[$pnum\]: [URI::query [HTTP::uri] [lindex $params 0]]"
      }
}