98 lines
2.6 KiB
JavaScript
98 lines
2.6 KiB
JavaScript
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(function (exports) {
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'use strict';
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var CannedStorage;
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var Oauth3 = (exports.OAUTH3 || require('./oauth3'));
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function create(opts) {
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var myInstance = {};
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var conf = {
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prefix: opts.namespace + '.'
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};
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Object.keys(CannedStorage.api).forEach(function (key) {
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myInstance[key] = function () {
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var args = Array.prototype.slice.call(arguments);
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args.unshift(conf);
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return CannedStorage.api[key].apply(null, args);
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};
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});
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return myInstance;
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}
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var api = {
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init: function (/*conf*/) {
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// noop, reserved for future use
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return Oauth3.PromiseA.resolve();
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}
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, get: function (conf, key) {
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var val;
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try {
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val = JSON.parse(localStorage.getItem(conf.prefix + key) || null);
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} catch(e) {
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console.error("couldn't parse " + conf.prefix + key, localStorage.getItem(conf.prefix + key));
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localStorage.removeItem(conf.prefix + key);
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val = null;
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}
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// just because sometimes it happens...
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if ('undefined' === val || 'null' === val) {
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console.warn("got undefined for " + conf.prefix + key);
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val = null;
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}
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return val && Oauth3.PromiseA.resolve(val) || Oauth3.PromiseA.reject();
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}
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, set: function (conf, key, val) {
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try {
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localStorage.setItem(conf.prefix + key, JSON.stringify(val));
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return Oauth3.PromiseA.resolve();
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} catch(e) {
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console.error("couldn't stringify " + conf.prefix + key, val);
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return Oauth3.PromiseA.reject(e);
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}
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}
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, remove: function (conf, key) {
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localStorage.removeItem(conf.prefix + key);
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return Oauth3.PromiseA.resolve();
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}
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, clear: function (conf, account) {
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var re;
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var keys = [];
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var i;
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var key;
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re = new RegExp('^'
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// See http://stackoverflow.com/a/6969486/151312 for regexp escape explanation
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+ conf.prefix.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&")
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+ (account || '')
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);
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for (i = 0; i < localStorage.length; i += 1) {
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key = localStorage.key(i);
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if (re.test(key) && !/\.(dev|developer)\./.test(key)) {
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keys.push(key);
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}
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}
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keys.forEach(function (key) {
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localStorage.removeItem(key);
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});
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return Oauth3.PromiseA.resolve();
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}
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};
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CannedStorage = {
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create: create
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, api: api
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};
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exports.CannedStorage = CannedStorage.CannedStorage = CannedStorage;
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if ('undefined' !== typeof module) {
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module.exports = CannedStorage;
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}
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}('undefined' !== typeof exports ? exports : window));
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