User:Ama Omega/archive/lsl hacks

Shared Media and HTTP-In

One step at a time .......

llSetPrimMediaParams

• Use llSetPrimMediaParams to set the url and various parameters on the face of a prim via LSL.

// example LSL

data: urls

• There is a special url type: "data:" that lets you send the html *in the url*.

// data:text/html,This%20is%20a%20test // TODO: how to make that work as a link in wikipedia?

llSetPrimMediaParams for data: urls

• Thus you can build arbitrary html in your LSL script and display it on the face of the prim

// example LSL

HTTP-In

• Scripts can become web servers via HTTP-In(link)

llSetPrimMediaParams for data: urls that link back to HTTP-In

• Which means you can make web pages that trigger other page views via http-in links

// example LSL

Forms

• You can put forms in data: urls

// data:text/html,<form action="http://google.com" method="GET">Search:<input type="text" name="search"><input type="submit" label="Submit"></form>

The Magic

• You can set the script HTTP-In url as the form action to get the results of the form sent back to the script

// example LSL

The Limits

• 1024 bytes per url
• llEscapeURLs means non-alphanumeric characters are 3 bytes (ouch)
• Must force another page view after form submission since HTTP-In can't generate HTML

The Tricks

• <base href="<http-in-url>/">
• Tiny urls