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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const {
BaseStorageActor,
DEFAULT_VALUE,
} = require("resource://devtools/server/actors/resources/storage/index.js");
const {
LongStringActor,
} = require("resource://devtools/server/actors/string.js");
class LocalOrSessionStorageActor extends BaseStorageActor {
constructor(storageActor, typeName) {
super(storageActor, typeName);
Services.obs.addObserver(this, "dom-storage2-changed");
Services.obs.addObserver(this, "dom-private-storage2-changed");
}
destroy() {
if (this.isDestroyed()) {
return;
}
Services.obs.removeObserver(this, "dom-storage2-changed");
Services.obs.removeObserver(this, "dom-private-storage2-changed");
super.destroy();
}
getNamesForHost(host) {
const storage = this.hostVsStores.get(host);
return storage ? Object.keys(storage) : [];
}
getValuesForHost(host, name) {
const storage = this.hostVsStores.get(host);
if (!storage) {
return [];
}
if (name) {
const value = storage ? storage.getItem(name) : null;
return [{ name, value }];
}
if (!storage) {
return [];
}
// local and session storage cannot be iterated over using Object.keys()
// because it skips keys that are duplicated on the prototype
// e.g. "key", "getKeys" so we need to gather the real keys using the
// storage.key() function.
const storageArray = [];
for (let i = 0; i < storage.length; i++) {
const key = storage.key(i);
storageArray.push({
name: key,
value: storage.getItem(key),
});
}
return storageArray;
}
// We need to override this method as populateStoresForHost expect the window object
populateStoresForHosts() {
this.hostVsStores = new Map();
for (const window of this.windows) {
const host = this.getHostName(window.location);
if (host) {
this.populateStoresForHost(host, window);
}
}
}
populateStoresForHost(host, window) {
try {
this.hostVsStores.set(host, window[this.typeName]);
} catch (ex) {
console.warn(
`Failed to enumerate ${this.typeName} for host ${host}: ${ex}`
);
}
}
async getFields() {
return [
{ name: "name", editable: true },
{ name: "value", editable: true },
];
}
async addItem(guid, host) {
const storage = this.hostVsStores.get(host);
if (!storage) {
return;
}
storage.setItem(guid, DEFAULT_VALUE);
}
/**
* Edit localStorage or sessionStorage fields.
*
* @param {Object} data
* See editCookie() for format details.
*/
async editItem({ host, field, oldValue, items }) {
const storage = this.hostVsStores.get(host);
if (!storage) {
return;
}
if (field === "name") {
storage.removeItem(oldValue);
}
storage.setItem(items.name, items.value);
}
async removeItem(host, name) {
const storage = this.hostVsStores.get(host);
if (!storage) {
return;
}
storage.removeItem(name);
}
async removeAll(host) {
const storage = this.hostVsStores.get(host);
if (!storage) {
return;
}
storage.clear();
}
observe(subject, topic, data) {
if (
(topic != "dom-storage2-changed" &&
topic != "dom-private-storage2-changed") ||
data != this.typeName
) {
return null;
}
const host = this.getSchemaAndHost(subject.url);
if (!this.hostVsStores.has(host)) {
return null;
}
let action = "changed";
if (subject.key == null) {
return this.storageActor.update("cleared", this.typeName, [host]);
} else if (subject.oldValue == null) {
action = "added";
} else if (subject.newValue == null) {
action = "deleted";
}
const updateData = {};
updateData[host] = [subject.key];
return this.storageActor.update(action, this.typeName, updateData);
}
/**
* Given a url, correctly determine its protocol + hostname part.
*/
getSchemaAndHost(url) {
const uri = Services.io.newURI(url);
if (!uri.host) {
return uri.spec;
}
return uri.scheme + "://" + uri.hostPort;
}
toStoreObject(item) {
if (!item) {
return null;
}
return {
name: item.name,
value: new LongStringActor(this.conn, item.value || ""),
};
}
}
class LocalStorageActor extends LocalOrSessionStorageActor {
constructor(storageActor) {
super(storageActor, "localStorage");
}
}
exports.LocalStorageActor = LocalStorageActor;
class SessionStorageActor extends LocalOrSessionStorageActor {
constructor(storageActor) {
super(storageActor, "sessionStorage");
}
}
exports.SessionStorageActor = SessionStorageActor;
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