iRule to insert cookie when there is external site cookie on the APM

Question

Hi,all&nbsp;
I've created a iRule such as the following.&nbsp;
Check wheter there is "SMSESSION" Cookie.If there is "SMSESSION" Cookie, Insert the same Cookie at the time of the Portal Access.
It was successful in the insert of Cookie, but an error such as the following appeared on the /var/log/ltm.&nbsp;

Oct 24 16:38:36 ra-bip2000s-test err tmm[9529]: 01220001:3: TCL error: /Common/a_sap  - Illegal argument. Can't execute in the current context. (line 1)     invoked from within "HTTP::header insert "Cookie" "SMSESSION=$ca_auth""&nbsp;

Please verify the below irule and advise me for any modification.&nbsp;

when CLIENT_ACCEPTED {&nbsp;
ACCESS::restrict_irule_events disable&nbsp;
}&nbsp;
when HTTP_REQUEST {&nbsp;
if { ( [HTTP::cookie exists SMSESSION] ) } {&nbsp;
set ca_auth [findstr [HTTP::header cookie] "SMSESSION=" "10" ";"]&nbsp;
set ca_flag 1&nbsp;
} else {&nbsp;
set ca_flag 0&nbsp;
}&nbsp;
}&nbsp;
when REWRITE_REQUEST_DONE {&nbsp;
if { $ca_flag == 1 } {&nbsp;
HTTP::header insert "Cookie" "SMSESSION=$ca_auth"}}&nbsp;

Regards,&nbsp;

kunjan · Answer

Couldn't find anything incorrect in the iRule and in my test as well it works fine.
Which version are you trying? Try a simple iRule to see if the err still occurs
    when REWRITE_REQUEST_DONE {
     HTTP::header insert "Cookie" "SMSESSION=10"
    }

kunjan_118660 · Answer

Couldn't find anything incorrect in the iRule and in my test as well it works fine.
Which version are you trying? Try a simple iRule to see if the err still occurs
    when REWRITE_REQUEST_DONE {
     HTTP::header insert "Cookie" "SMSESSION=10"
    }

kenji_matsuura_ · Answer

Thank you fou your help, kunjan.

I'm using APM version 11.4.1HF5.

I tried your iRule, but error occurred.

The error does not always occur , it occurs at the time of access to a particular site.

Is there any other way to insert the cookie at the time of Portal Access?

Regards,

kenji_matsuura_ · Answer

Thank you fou your help, kunjan.

I'm using APM version 11.4.1HF5.

I tried your iRule, but error occurred.

The error does not always occur , it occurs at the time of access to a particular site.

Is there any other way to insert the cookie at the time of Portal Access?

Regards,

kunjan_118660 · Answer

Not sure why the error, may be can try replace instead and also some logging to see what so unique here:
when REWRITE_REQUEST_DONE {
    log local0. "Request URI = [HTTP::uri]"
    foreach x [HTTP::header names] {
       log local0. "Request header($x) = [HTTP::header $x]"
    }
    HTTP::header replace "Cookie" "SMSESSION=10"
}

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iRule to insert cookie when there is external site cookie on the APM

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