Citrix Systems 9.2 Evaluates the protocol in the URL, Extracts a name-value list, using the =

Chapter 4 Advanced Expressions: Evaluating Text 79

VPN and Clientless VPN Expression Prefixes that Return Text

VPN and Clientless VPN	Description
Expression
VPN.BASEURL.PROTOCOL	Evaluates the protocol in the URL.
	Do not use this prefix in bidirectional policies.
VPN.BASEURL.QUERY	Extracts a name-value list, using the “=” and “&”
	delimiters from the query string in a URL.
VPN.BASEURL.QUERY.IGNORE_	This method ignores the empty elements in a
EMPTY_ELEMENTS	name-value list. For example, in the following
	name-value list, there is an empty element
	following “a=10”:
	a=10;;b=11; ;c=89
	The element following b=11 contains a space and
	is not considered an empty element.
	Consider the following HTTP header:
	Cust_Header : a=1;;b=2; ;c=3
	The following expression produces a count of 4
	after evaluating this header:
	http.req.header("Cust_Header").
	typecast_nvlist_t('=',';').ignore_
	empty_elements.count
	The following expression produces a count of 5
	after evaluating the header:
	http.req.header("Cust_Header").
	typecast_nvlist_t('=',';').
VPN.BASEURL.SUFFIX	Evaluates the file name suffix in a URL.
	For example, if the path is /a/b/c/my.page.html,
	this operation selects “html”.
VPN.CLIENTLESS_BASEURL	Evaluates the clientless VPN base URL.
VPN.CLIENTLESS_BASEURL.	Extracts the original URL from the clientless VPN
CVPN_DECODE	formatted URL.
VPN.CLIENTLESS_BASEURL.	Converts a URL to the clientless VPN format.
CVPN_ENCODE
VPN.CLIENTLESS_BASEURL.	Evaluates the host name in the URL.
HOSTNAME	Do not use this prefix in bidirectional policies.