LlRequestURL

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/LSL

RequestURL

llRequestURL

Summary

Function: key llRequestURL( );

0.0	Forced Delay
10.0	Energy

Requests one HTTP:// url for use by this script. The http_request event is triggered with the result of the request.
Returns a key that is the handle used for identifying the result in the http_request event.

Caveats

• When a region is (re)started all HTTP server URLs are automatically released and invalidated.
  • Use CHANGED_REGION_START to detect this so new URL can be requested.
• The number of available URLs is a limited resource, that is to say, a script can only have so many open URLs. See LSL http_server#Resource Limitations for details.
• When abandoning a URL, always release it with llReleaseURL, otherwise it will leak.

Examples

This script requests a new URL after region restart: <LSL> key urlRequestId; string url;

request_url() {

   if (url != "")
   {
       llReleaseURL(url);
       url = "";
   }

   urlRequestId = llRequestURL();

}

default {

   changed(integer change)
   {
       if (change & CHANGED_REGION_START)
           request_url();
   }

   state_entry()
   {
       request_url();
   }

   http_request(key id, string method, string body)
   {
       if (id == urlRequestId)
       {
           urlRequestId = NULL_KEY;

           if (method == URL_REQUEST_GRANTED)
           {
               url = body;
               llOwnerSay(url);
           }
           else if (method == URL_REQUEST_DENIED)
               llOwnerSay("URL request has been denied! " + body);
       }
       else if (method == "GET")
           llHTTPResponse(id, 200, "Hello world!");
   }

} </LSL> It's important to keep in mind that if you request another URL, that the old one will not be released, it will remain active. The following script drives home this point.

Try the following code ONLY if you can use all your URLs on your land. Removing the prim/script will release all URLs previous assigned. <LSL>//Quickly allocates all available URLs //Touching

//deleting the script or derezzing the prim/object to releases the URLs

default {

   state_entry() {
       //Requesting a URL
       llRequestURL();
   }
   http_request(key ID, string Method, string Body) {
       if (Method == URL_REQUEST_GRANTED) {
           //Printing new URL and number of free addresses
           llSetText( (string)llGetFreeURLs() + "\n" + Body, <1, 1, 1 >, 1);
           //Requesting a URL
           llRequestURL();
       } else if (Method == URL_REQUEST_DENIED) {
           llSetText("No URLs free !", <1, 0, 0 >, 1);
       } else if (Method == "GET") {
           llHTTPResponse(ID, 200, "Hello there !");
       }
   }

}</LSL> This script will, as you can see, use all URLs available on your land because it does not remove the old URLs before requesting a new one.

Just store the old URL in a global variable and release it with llReleaseURL.

See Also

Functions

•	llRequestSecureURL
•	llGetFreeURLs
•	llReleaseURL
•	llHTTPResponse
•	llGetHTTPHeader

Articles

•

LSL http server

Deep Notes

History

• SVN:1836 r112899 Trunk

Signature
function key llRequestURL();