michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: importScripts("resource://gre/modules/osfile.jsm");
michael@0: 
michael@0: function log(message) {
michael@0:   dump("WebManagerWorker " + message + "\n");
michael@0: }
michael@0: 
michael@0: onmessage = function(event) {
michael@0:   let { url, path } = event.data;
michael@0: 
michael@0:   let file = OS.File.open(path, { truncate: true });
michael@0:   let request = new XMLHttpRequest({ mozSystem: true });
michael@0: 
michael@0:   request.open("GET", url, true);
michael@0:   request.responseType = "moz-chunked-arraybuffer";
michael@0: 
michael@0:   request.onprogress = function(event) {
michael@0:     log("onprogress: received " + request.response.byteLength + " bytes");
michael@0:     let bytesWritten = file.write(new Uint8Array(request.response));
michael@0:     log("onprogress: wrote " + bytesWritten + " bytes");
michael@0:   };
michael@0: 
michael@0:   request.onreadystatechange = function(event) {
michael@0:     log("onreadystatechange: " + request.readyState);
michael@0: 
michael@0:     if (request.readyState !== 4) {
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     file.close();
michael@0: 
michael@0:     if (request.status === 200) {
michael@0:       postMessage({ type: "success" });
michael@0:     } else {
michael@0:       try {
michael@0:         OS.File.remove(path);
michael@0:       } catch(ex) {
michael@0:         log("error removing " + path + ": " + ex);
michael@0:       }
michael@0:       let statusMessage = request.status + " - " + request.statusText;
michael@0:       postMessage({ type: "failure", message: statusMessage });
michael@0:     }
michael@0:   };
michael@0: 
michael@0:   request.send(null);
michael@0: }