Log matched/detected pattern in switch statement.

[Akshay_SK]

I have been trying to write a security iRule for my organization that provides a basic security. Here is my code snippet where I am matching the useragent value with the provided patterns.

switch -glob $useragent {

"*havij*" -

"*zmeu*" -

"*sqlmap*" {

            log local0. "Blocking this request due to detected user agent : "

reject

}

}

How do I print the detected pattern here? If I try to print the $useragent, I will be logging the entire useragent value instead of only the detected pattern. Any help would be greatly appreciated.

[Dario_Garrido]

Hello Akshay.

It's no possible to do it that way. You should differentiate each pattern.

switch -glob $useragent {
	"*havij*" {
		log local0. "Blocking this request due to detected user agent : *havij*"
		reject
	}
	"*zmeu*" {
		log local0. "Blocking this request due to detected user agent : *zmeu*"
		reject
	}
	"*sqlmap*" {
		log local0. "Blocking this request due to detected user agent : *sqlmap*"
		reject
	}
}

Regards,

Dario.