Antoine Ouvrard
68 lines
2.7 KiB
JavaScript
68 lines
2.7 KiB
JavaScript
/**
|
|
* Requests the given webservice that will create the connection and will return
|
|
* the necessary details(rid, sid and jid) to attach to this connection and
|
|
* start using it. This script can be used for optimizing the connection startup
|
|
* time. The function will send AJAX request to a webservice that should
|
|
* create the bosh session much faster than the client because the webservice
|
|
* can be started on the same machine as the XMPP serever.
|
|
*
|
|
* NOTE: It's vert important to execute this function as early as you can for
|
|
* optimal results.
|
|
*
|
|
* @param webserviceUrl the url for the web service that is going to create the
|
|
* connection.
|
|
* @param successCallback callback function called with the result of the AJAX
|
|
* request if the request was successfull. The callback will receive one
|
|
* parameter which will be JS Object with properties - rid, sid and jid. This
|
|
* result should be passed to JitsiConnection.attach method in order to use that
|
|
* connection.
|
|
* @param error_callback callback function called the AJAX request fail. This
|
|
* callback is going to receive one parameter which is going to be JS error
|
|
* object with a reason for failure in it.
|
|
*/
|
|
function createConnectionExternally( // eslint-disable-line no-unused-vars
|
|
webserviceUrl,
|
|
successCallback,
|
|
error_callback) {
|
|
if (!window.XMLHttpRequest) {
|
|
error_callback(new Error('XMLHttpRequest is not supported!'));
|
|
return;
|
|
}
|
|
|
|
var HTTP_STATUS_OK = 200;
|
|
|
|
var xhttp = new XMLHttpRequest();
|
|
|
|
xhttp.onreadystatechange = function() {
|
|
if (xhttp.readyState == xhttp.DONE) {
|
|
var now = window.connectionTimes['external_connect.done']
|
|
= window.performance.now();
|
|
console.log('(TIME) external connect XHR done:\t', now);
|
|
if (xhttp.status == HTTP_STATUS_OK) {
|
|
try {
|
|
var data = JSON.parse(xhttp.responseText);
|
|
successCallback(data);
|
|
} catch (e) {
|
|
error_callback(e);
|
|
}
|
|
} else {
|
|
error_callback(new Error('XMLHttpRequest error. Status: '
|
|
+ xhttp.status + '. Error message: ' + xhttp.statusText));
|
|
}
|
|
}
|
|
};
|
|
|
|
xhttp.open('GET', webserviceUrl, true);
|
|
|
|
// Fixes external connect for IE
|
|
// The timeout property may be set only after calling the open() method
|
|
// and before calling the send() method.
|
|
xhttp.timeout = 3000;
|
|
|
|
window.connectionTimes = {};
|
|
var now = window.connectionTimes['external_connect.sending']
|
|
= window.performance.now();
|
|
console.log('(TIME) Sending external connect XHR:\t', now);
|
|
xhttp.send();
|
|
}
|