Citrix Systems 9.2 Benutzerhandbuch

The following table describes expression prefixes that extract HTTP headers.
Prefixes That Extract HTTP Headers

HTTP.REQ.HEADER("header_name")

Returns the contents of the HTTP header 
specified by the header_name argument. The 
header name cannot exceed 32 characters.

Note that this prefix returns the value from the 
Host header by default. To use this value as a 
host name you need to typecast it as follows:

http.req.header("host").typecast_

http_hostname_t

For more information on typecasting, see 

HTTP.REQ.FULL_HEADER("header_

name")

Returns the contents of the HTTP header 
specified by the header_name argument, 
including the terminating \r\n\r\n. The 
header name cannot exceed 32 characters.

HTTP.REQ.DATE

Returns the contents of the HTTP Date 
header.The following date formats are 
recognized:

RFC822. Sun, 06 Jan 1980 8:49:37 GMT

RFC850. Sunday, 06-Jan-80 9:49:37 GMT

ASCII TIME. Sun Jan 6 08:49:37 1980

To evaluate a Date header as a date object, see 

. 

HTTP.REQ.COOKIE

(Name/Value List) Returns the contents of the 
HTTP Cookie header.

HTTP.REQ.TXID

Returns the HTTP transaction ID. The value 
is a function of an internal transaction 
number, system boot time and system MAC 
address.

HTTP.RES.HEADER("header_name")

Returns the contents of the HTTP header 
specified by the header_name argument. The 
header name cannot exceed 32 characters.

HTTP.RES.FULL_HEADER("header_

name")

Returns the contents of the HTTP header 
specified by the header_name argument, 
including the terminating \r\n\r\n. The 
header name cannot exceed 32 characters.