Citrix Systems 9.2 Expressions for Numeric HTTP Payload Data Other Than Dates

130 Citrix NetScaler Policy Configuration and Reference Guide
The following table describes prefixes for HTTP URLs that are not described
elsewhere.
Expressions for Numeric HTTP Payload Data Other Than
Dates
The following table describes prefixes for numeric values in HTTP data other
than dates. You would use numeric operations with the following prefixes.
Prefixes That Extract URLs
URL Prefix Description
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)
Prefixes That Evaluate HTTP Request or Response Length
Prefix Description
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