llReleaseURL
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Summary
Function: llReleaseURL( string url );347 | Function ID |
0.0 | Forced Delay |
10.0 | Energy |
Releases the specified URL, it will no longer be usable.
• string | url | – | URL to release |
Caveats
- URLs are automatically released and invalidated in certain situations. In the following situations, there is no need to call llReleaseURL. But you will have to request a new one afterwards
- When the region is restarted or goes offline
- When the script holding the URLs is reset, or recompiled
- When the object containing the script is deleted, or taken to inventory
Examples
Important: Never ever forget to release a URL again which you have requested! URLs are region resources just like prims. If you take them all you can get into big trouble with the sim owner and/or estate managers. |
string url;
key urlRequestId;
key selfCheckRequestId;
request_url()
{
llReleaseURL(url);
url = "";
llSetTimerEvent(0.0);
urlRequestId = llRequestURL();
}
throw_exception(string inputString)
{
llInstantMessage(llGetOwner(), inputString);
// yeah, bad way to handle exceptions by restarting.
// However this is just a demo script...
llResetScript();
}
default
{
on_rez(integer start_param)
{
llResetScript();
}
changed(integer change)
{
if (change & CHANGED_OWNER | CHANGED_REGION | CHANGED_REGION_START)
llResetScript();
}
state_entry()
{
request_url();
}
http_request(key id, string method, string body)
{
integer responseStatus = 400;
string responseBody = "Unsupported method";
if (method == URL_REQUEST_DENIED)
throw_exception("The following error occurred while attempting to get a free URL for this device:\n \n" + body);
else if (method == URL_REQUEST_GRANTED)
{
url = body;
llLoadURL(llGetOwner(), "Click to visit my URL!", url);
// check every 5 mins for dropped URL
llSetTimerEvent(300.0);
}
else if (method == "GET")
{
responseStatus = 200;
responseBody = "Hello world!";
}
// else if (method == "POST") ...;
// else if (method == "PUT") ...;
// else if (method == "DELETE") { responseStatus = 403; responseBody = "forbidden"; }
llHTTPResponse(id, responseStatus, responseBody);
}
http_response(key id, integer status, list metaData, string body)
{
if (id == selfCheckRequestId)
{
// If you're not usually doing this,
// now is a good time to get used to doing it!
selfCheckRequestId = NULL_KEY;
if (status != 200)
request_url();
}
else if (id == NULL_KEY)
throw_exception("Too many HTTP requests too fast!");
}
timer()
{
selfCheckRequestId = llHTTPRequest(url,
[HTTP_METHOD, "GET",
HTTP_VERBOSE_THROTTLE, FALSE,
HTTP_BODY_MAXLENGTH, 16384],
"");
}
}
See Also
Functions
• | llRequestURL | |||
• | llRequestSecureURL | |||
• | llGetFreeURLs | |||
• | llHTTPResponse | |||
• | llGetHTTPHeader |
Articles
• | LSL http server |