xhr.js
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/**
* @file xhr.js
*/
/**
* A wrapper for videojs.xhr that tracks bandwidth.
*
* @param {Object} options options for the XHR
* @param {Function} callback the callback to call when done
* @return {Request} the xhr request that is going to be made
*/
import {
xhr as videojsXHR,
mergeOptions,
default as videojs
} from 'video.js';
const xhrFactory = function() {
const xhr = function XhrFunction(options, callback) {
// Add a default timeout for all hls requests
options = mergeOptions({
timeout: 45e3
}, options);
// Allow an optional user-specified function to modify the option
// object before we construct the xhr request
let beforeRequest = XhrFunction.beforeRequest || videojs.Hls.xhr.beforeRequest;
if (beforeRequest && typeof beforeRequest === 'function') {
let newOptions = beforeRequest(options);
if (newOptions) {
options = newOptions;
}
}
let request = videojsXHR(options, function(error, response) {
let reqResponse = request.response;
if (!error && reqResponse) {
request.responseTime = Date.now();
request.roundTripTime = request.responseTime - request.requestTime;
request.bytesReceived = reqResponse.byteLength || reqResponse.length;
if (!request.bandwidth) {
request.bandwidth =
Math.floor((request.bytesReceived / request.roundTripTime) * 8 * 1000);
}
}
// videojs.xhr now uses a specific code on the error
// object to signal that a request has timed out instead
// of setting a boolean on the request object
if (error && error.code === 'ETIMEDOUT') {
request.timedout = true;
}
// videojs.xhr no longer considers status codes outside of 200 and 0
// (for file uris) to be errors, but the old XHR did, so emulate that
// behavior. Status 206 may be used in response to byterange requests.
if (!error &&
!request.aborted &&
response.statusCode !== 200 &&
response.statusCode !== 206 &&
response.statusCode !== 0) {
error = new Error('XHR Failed with a response of: ' +
(request && (reqResponse || request.responseText)));
}
callback(error, request);
});
const originalAbort = request.abort;
request.abort = function() {
request.aborted = true;
return originalAbort.apply(request, arguments);
};
request.uri = options.uri;
request.requestTime = Date.now();
return request;
};
return xhr;
};
export default xhrFactory;