This is how you can show the user agent with Server Side Includes:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>SSI Page</title>
</head>
<body>
<!--#echo var="HTTP_USER_AGENT" -->
</body>
</html> |
I played around with some Server Side Includes using org.apache.catalina.ssi.SSIServlet and noticed that some statements (which were fine on Apache) are not working on GlassFish. Finally I found the solution.
In Apache (using mod_ssi) you can do this:
<!--#if expr="{$HTTP_USER_AGENT} == /(iPhone)/" -->
<p>It's an iPhone.</p>
<!--#endif --> |
But on GlassFish Server (with SSIServlet) you have to do this:
<!--#if expr="{$HTTP_USER_AGENT} = '/(iPad)/'" -->
<p>It's an iPhone.</p>
<!--#endif --> |
Server Side Includes (SSI) is a server-side scripting language which runs on Apache (with mod_ssi), some Java Application Servers (see Server Side Include in GlassFish) and also on Microsoft Internet Information Services (IIS). Here are a few examples of how to use SSI:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Server Side Includes</title>
<style type="text/css">
* { margin: 0; padding: 0; border: 0; }
</style>
</head>
<body>
<!-- http://httpd.apache.org/docs/2.0/howto/ssi.html -->
<!--#set var="name" value="Benny Neugebauer" -->
<!--#set var="text" value="My name is ${name}." -->
<!--#set var="accountBalance" value="\$72.72" -->
<p>
<!--#echo var="name" --><br/>
<!--#echo var="text" --><br/>
My account balance is: <!--#echo var="accountBalance" -->
<br/><br/>
<!--#if expr="${name} == 'Benny Neugebauer'" -->
<b>Hey Benny!</b>
<!--#else -->
<em>Who are you??</em>
<!--#endif -->
<br/>
<!--#if expr="{$name} = /[a-zA-Z]/" -->
Your name contains just letters. Yay!
<!--#endif -->
<br/><br/>
</p>
<p>
<!-- Print some CGI variables... -->
<!--#echo var="HTTP_USER_AGENT" --><br/>
<!--#echo var="SERVER_NAME" --><br/>
<!--#echo var="REMOTE_ADDR" --><br/>
</p>
</body>
</html> |