signal-desktop/libtextsecure/key_worker.js
lilia bdecf5cc44 Generate key_worker.js
Instead of calling importScripts, which is prone to relative path
issues, generate the worker script with everything it needs included.
2015-04-15 15:38:57 -07:00

75 lines
2.3 KiB
JavaScript

/* vim: ts=4:sw=4
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
'use strict';
/*
* Load this script in a Web Worker to generate new prekeys without
* tying up the main thread.
* https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API
*
* Because workers don't have access to the window or localStorage, we
* create our own version that proxies back to the caller for actual
* storage.
*
* Example usage:
*
var myWorker = new Worker('/js/key_worker.js');
myWorker.onmessage = function(e) {
switch(e.data.method) {
case 'set':
localStorage.setItem(e.data.key, e.data.value);
break;
case 'remove':
localStorage.removeItem(e.data.key);
break;
case 'done':
console.log(e.data.keys);
}
};
*/
var store = {};
window.textsecure.storage.impl = {
/*****************************
*** Override Storage Routines ***
*****************************/
put: function(key, value) {
if (value === undefined)
throw new Error("Tried to store undefined");
store[key] = value;
postMessage({method: 'set', key: key, value: value});
},
get: function(key, defaultValue) {
if (key in store) {
return store[key];
} else {
return defaultValue;
}
},
remove: function(key) {
delete store[key];
postMessage({method: 'remove', key: key});
},
};
onmessage = function(e) {
store = e.data;
textsecure.protocol_wrapper.generateKeys().then(function(keys) {
postMessage({method: 'done', keys: keys});
close();
});
}