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AwesomeNetwork1's avatar
AwesomeNetwork1
Icon for Nimbostratus rankNimbostratus
Aug 31, 2017

capturing the CN from a X509 subject

I found irules for capturing the X509::subject, but I need to capture the CN and insert it into a http::header. It looks like I can do that with the subject. any idea on how (if possible) I can iso...
application delivery
iRules
Stanislas_Piro2's avatar
Stanislas_Piro2
Icon for Cumulonimbus rankCumulonimbus
Aug 31, 2017

Hi,

if you have the subject stored in variable subject, use the following code=

 

set subject_element [split $subject ","];
foreach value $subject_element {
    if {[string first "CN=" $value] >=0} {
        set CN [string range $value [expr {[string first "=" $value] +1}] end ];
        break;
    }
}

 

or

 

array set fields [split $subject ",="]

 

the CN is then stored in $fields(CN)