Citrix Systems Network Router 9.2 User Manual

The following table describes prefixes for HTTP URLs that are not described 
elsewhere.

The following table describes prefixes for numeric values in HTTP data other 
than dates. You would use numeric operations with the following prefixes.

HTTP.REQ.URL.PATH.

GET(n)

Returns a slash- (“/”) separated list from the URL path. 
For example, consider the following URL:

http://www.mycompany.com/dir1/dir2/dir3/

index.html?a=1 

The following expression returns dir1 from this URL:

http.req.url.path.get(1) 

The following expression returns dir2:

http.req.url.path.get(2)

HTTP.REQ.URL.PATH.GET_

REVERSE(n)

Returns a slash- (“/”) separated list from the URL path, 
starting from the end of the path. For example, consider 
the following URL:

http://www.mycompany.com/dir1/dir2/dir3/

index.html?a=1 

The following expression returns index.html from this 
URL:

http.req.url.path.get_reverse(0)

The following expression returns dir3:

http.req.url.path.get_reverse(1)

HTTP.REQ.CONTENT_LENGTH

Returns the length of an HTTP request as a 
number.

Following is an example:

http.req.content_length < 500

HTTP.RES.CONTENT_LENGTH

Returns the length of the HTTP response as a 
number.

Following is an example:

http.res.content_length <= 1000