squid-cache.org

	Secifiy an internal redirection rule.  If rewrite_program is defined
	Then these rules are ignored.
	
	redirect dsturl acl [acl [acl ..]]

	A redirect is applied when all acls are matched.

	If dsturl is "-" the redirect does nothing.
	
	dsturl may start with a status code sent directly to user.  Valid
	status codes:

	  301:http://....    Means respond with a 301 to user.
	  302:http://....    Means respond with a 302 to user.
	  303:http://....    Means respond with a 303 to user.
	  307:http://....    Means respond with a 307 to user.

	dsturl may have format codes preceeded by %.
	Format:

		%[#][argument]formatcode

		#	URL quoted output format

	Valid format codes:

		>a	Client source IP address
		la	Local IP address (http_port)
		lp	Local port number (http_port)
		ts	Seconds since epoch
		tu	subsecond time (milliseconds, %03d)
		un	User name
		ul	User login from authentication
		ui	User name from ident
		ue	User name from external acl
		rm	Request method (GET/POST etc)
		ru	Request URL
		rp	Request path
		rh	Request host from URL
		rH	Request Host header
		rP	Request protocol
		et	Tag returned by external acl
		ea	Log string returned by external acl
		%	a literal % character