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LiveHTML


LiveHTML is Oracle's implementation and extension of the standard Server Side Includes functionality defined by the NCSA. The LiveHTML Interpreter enables you to include dynamic content in otherwise static Web pages. At the point in your Web page where you want to interject dynamic content, you place a tag that points to one of the following:

You can use a variable to determine at runtime the Web page, variable, or script to which the tag points. This enables you to have a Web page that selects dynamically from among any number of static Web pages or scripts, based, for example, on values a user provides in an HTML form. The result is a dynamic Web page built of static Web page components, variables, and HTML output from scripts.

A Web page that is to use LiveHTML must be parsed by the WebServer. For this reason, it differs slightly from ordinary Web pages written in HTML, which the WebServer simply delivers to the browser. To have the LiveHTML tags executed on the server, you must use the WebServer Manager to specify that a given Web Listener is to parse files for LiveHTML. You have the option of having the Listener parse all files or just those with certain extensions.

Enabling users to execute scripts on the server can create security and other risks. For this reason, you can specify that a specific Listener allows only "crippled" includes. This means that LiveHTML parsed by that Listener will be able only to call static HTML, environment variables, or other server parsable files, not executable scripts.

You frequently use LiveHTML when you have standard components, such as menus, that you want on many pages. If desired, you can use LiveHTML to run the PL/SQL Agent under CGI, and thereby incorporate dynamic Oracle data in hardcoded Web pages.


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This document was last modified at 07:32pm PDT on April 29, 1996.

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