Citrix Systems 9.2 manual Listt,. Ignoreemptyelements.Count, Listt,.Count

70Citrix NetScaler Policy Configuration and Reference Guide

HTTP Expression Prefixes that Return Text

Prefix	Description
HTTP.REQ.URL.QUERY.	Returns the value from the name-value pair in the
VALUE	argument supplied to this prefix, using the delimiter “=”
	from the query component in the URL.
	Following is an example:
	http.req.url.query.value("action")
	The first component that matches the name is selected.
	The matching process honors the IGNORECASE and
	the NOIGNORECASE text modes. The
	URLENCODED and the NOURLENCODED text
	modes are ignored.
HTTP.REQ.URL.SUFFIX	Returns the file name suffix in a URL.
	For example, if the path in the URL is /a/b/c/mypage.
	html, this suffix selects “html”. Following is another
	example:
	http.req.url.suffix.contains("jpeg")
HTTP.REQ.USER	Returns the AAA user associated with the current
	HTTP transaction.
HTTP.REQ.USER.EXTERNAL_	Returns a list of the external groups to which a user
GROUPS	belongs. The groups are separated by a comma (",").
	For example, HTTP.REQ.USER.EXTERNAL_
	GROUPS returns a comma-separated list of all the
	external groups to which the user belongs.
HTTP.REQ.USER.EXTERNAL_	Ignores the empty elements in the list of external groups
GROUPS.IGNORE_EMPTY_	to which the user belongs.
ELEMENTS	If the element delimiter in the list is a comma (","), then
	the following list has an empty element following
	"a=10":
	a=10,,b=11, ,c=89
	But the element following "b=11" is not considered an
	empty element.
	For example, consider the following header in an HTTP
	request packet:
	Cust_Header : 123,,24, ,15
	Then the following expression returns a value of 4:
	HTTP.REQ.HEADER("Cust_Header").TYPECAST_
	LIST_T(','). IGNORE_EMPTY_ELEMENTS.COUNT
	The following expression returns a value of 5:
	HTTP.REQ.HEADER("Cust_Header").TYPECAST_
	LIST_T(',').COUNT.