Use the variables and references described in the following sections to customize URL filtering response
pages. The response page variables display different information about URL requests. For
example, the firewall replaces the
<category/>
variable
in the HTML code for the response pages with the URL categories of a requested URL.
Response page references enable you to add external images, sounds, style sheets, and
links.
Response Page Variables
The following table lists response page variables and the information or object that the system
substitutes each variable with during a block event. Each URL filtering response
page uses the following variables by default: user, url, and category. However,
response pages are customizable. For example, you can modify the order of the
variables or add different messages for specific URL categories.
Variable
Usage
<user/>
The firewall replaces the variable with
the username (if available via User-ID) or IP address of the user
when displaying the response page.
<url/>
The firewall replaces the variable with
the requested URL when displaying the response page.
<category/>
The firewall replaces the variable with
the URL filtering category of the blocked request.
<pan_form/>
HTML code for displaying the
Continue
button
on the URL Filtering Continue and Override page.
You can also add code that triggers the firewall to display different
messages depending on what URL category the user is attempting to
access. For example, the following code snippet from a response
page specifies to display Message 1 if the URL category is games,
Message 2 if the category is travel, or Message 3 if the category
is kids:
var cat = "<category/>";
switch(cat)
{
case 'games':
document.getElementById("warningText").innerHTML = "Message 1";
break;
case 'travel':
document.getElementById("warningText").innerHTML = "Message 2";
break;
case 'kids':
document.getElementById("warningText").innerHTML = "Message 3";
break;
}
Response Page References
Only a single HTML page can be loaded into each virtual
system for each type of block page. However, other resources such as images, sounds,
and cascading style sheets (CSS files) can be loaded from other servers at the time
the response page is displayed in the browser. All references must include a fully
qualified URL.
