LlGetHTTPHeader

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/LSL

GetHTTPHeader

llGetHTTPHeader

Summary

Function: string llGetHTTPHeader( key request_id, string header );

349	Function ID
0.0	Forced Delay
10.0	Energy

Returns a string that is the value for header for request_id.

• key	request_id	–	A valid HTTP request key.
• string	header	–	Header value name.

Specification

Generated Headers

These headers are automatically generated by the simulator, they were not actually sent by the requesting client. They supply information about the request to make parsing easier.

Sample URL: https://sim3015.aditi.lindenlab.com:12043/cap/a7717681-2c04-e4ac-35e3-1f01c9861322/foo/bar?arg=gra

header	description	example
"x-script-url"	The base url, as originally received from llRequestURL/llRequestSecureURL	https://sim3015.aditi.lindenlab.com:12043/cap/a7717681-2c04-e4ac-35e3-1f01c9861322
"x-path-info"	Any trailing path information from the requested url	/foo/bar
"x-query-string"	Any query arguments, the text past the first "?" in the url	arg=gra
"x-remote-ip"	IP address of the host that made the request

Common Headers

header	description	example
"user-agent"	The user-agent header as reported by the requester

Caveats

• LSL is not a CGI environment
  • "Content-Type" is an example of a normal header name, in a CGI environment the name would be "HTTP_CONTENT_TYPE".
• This header information is valid for 30 seconds, or until llHTTPResponse is called.

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Examples

<lsl> key url_request;

default {

   state_entry()
   {
       url_request = llRequestURL();
   }
   http_request(key id, string method, string body)
   {
       if (url_request == id)
       {
           url_request = "";
           if (method == URL_REQUEST_GRANTED)
           {
               llSay(0,"URL: " + body);
               if(llGetAgentSize(llGetOwner()))
                   llLoadURL(llGetOwner(), body);
           }
           else if (method == URL_REQUEST_DENIED)
           {
               llSay(0, "Something went wrong, no url. " + body);
           }
       }
       else
       {
           list headers = [ "x-script-url", "x-path-info", "x-query-string", "x-remote-ip", "user-agent" ];
           integer pos = ~llGetListLength(headers);
           while( ++pos )
           {
               string header = llList2String(headers, pos);
               llSay(0,header + ": " + llGetHTTPHeader(id, header));
           }
           llSay(0, "body: " + body);
           llHTTPResponse(id, 200, body);
       }
   }

}

</lsl>

See Also

Events

•

http_request

Functions

•	llGetFreeURLs
•	llRequestURL
•	llRequestSecureURL
•	llReleaseURL
•	llHTTPResponse

Articles

•	LSL http server
•	Wikipedia:List of HTTP headers

Deep Notes

History

• SVN:1836 r112899 Trunk

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Signature
function string llGetHTTPHeader( key request_id, string header );