Blue Coat Systems Time Clock Proxy SG Manuale Utente

Chapter 3: Condition Reference

59

category=

Tests the content categories of the requested URL as assigned by policy definitions or an installed 
content filter database.

A URL that is not categorized is assigned the category none. 

If a content filter provider is selected in configuration, but an error occurs in determining the category, 
the URL is assigned the category 

unavailable

 (in addition to any categories assigned directly by 

policy). This can be the result of either a missing database or license expiry. An additional category of 

unlicensed

 is assigned in the latter case.

A URL may have been assigned a list of categories. The 

category=

 trigger is true if it matches any of 

the categories assigned to the URL.

You cannot use 

category=

 to test the category assigned by off-box content filtering services. These 

services have their own policy that must be managed separately.

Notes:

•

If 

category=unlicensed

 is true, 

category=unavailable

 is true.

•

category=unavailable

 replaces the deprecated 

category.unavailable=yes

 syntax.

•

category=(category_list)

 

exception(content_filter_denied)

 replaces the deprecated

 

block_category(category_list)

 syntax.

category={ none|unlicensed|unavailable|category_name1, category_name2, ...}

where 

 represent category names defined by policy or the 

selected content filter provider. The list of currently valid category names is available both through the 
Management Console and CLI.

•

Use  in 

<Cache>

, 

<Proxy>

, and 

<Exception>

 layers.

•

This condition can be combined with the 

authenticate( )

 property, except when a Microsoft 

Media Streaming (MMS) over HTTP transaction is being evaluated.

•

Applies to proxy transactions.

; This example denies requests for games or sports related content.

<Proxy>

; Tests true if the request is in one of these categories.

category=(Sports, Games) exception(content_filter_denied)

category=unavailable exception(content_filter_unavailable); Fail closed

•

Properties:

 exception( )

, 

request.filter_service( )