Blue Coat Systems Time Clock Proxy SG Manuale Utente

ProxySG Content Policy Language Guide

134

time=

Tests if the time of day is in the specified range or an exact match. The current time is determined by 
the ProxySG appliance’s configured clock and time zone by default, although the UTC time zone can 
be specified by using the form

 time.utc=

. The numeric pattern used to test the 

time

 condition can 

contain no whitespace.

time[.utc]={[start_time]..[end_time]|exact_time}

where:

•

—Four digits (

) in 24-hour time format representing the start of a time range; for 

example, 

0900

 specifies 9:00 a.m. If left blank, midnight (

0000

) is assumed.

•

—Four digits (

) in 24-hour time format representing the end of a time range; for 

example, 

1700

 specifies 5:00 p.m. If left blank, 

2359

 (11:59 p.m.) is assumed.

•

—Four digits (

) in 24-hour time format representing an exact time.

To test against an inverted range, such as a range that crosses from one day into the next, the 
following shorthand expression is available. While 

time=(..0600|1900..)

 specifies 

midnight to 6 a.m. and 7 p.m. to midnight, the policy language also recognizes 

time=1900..0600

 as equivalent.

•

Use in all layers.

•

Using time-related conditions to control caching behavior in a 

<Cache>

 layer may cause thrashing 

of the cached objects.

•

Applies to all transactions.

; Tests for 3 a.m. to 1 p.m. UTC.

time.utc=0300..1300

; Allow access to a particular site only during 9 a.m. 

; to noon UTC (presented in two forms).

; Restrict form:

<proxy>

deny url.host=special_event.com time=!0900..1200

; Grant form:

<proxy>

allow url.host=special_event.com time=0900..1200