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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";
var EXPORTED_SYMBOLS = ["GeckoViewStorageController"];
const { GeckoViewUtils } = ChromeUtils.import(
"resource://gre/modules/GeckoViewUtils.jsm"
);
const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
const { PrincipalsCollector } = ChromeUtils.import(
"resource://gre/modules/PrincipalsCollector.jsm"
);
const { debug, warn } = GeckoViewUtils.initLogging(
"GeckoViewStorageController"
);
// Keep in sync with StorageController.ClearFlags and nsIClearDataService.idl.
const ClearFlags = [
[
// COOKIES
1 << 0,
Ci.nsIClearDataService.CLEAR_COOKIES |
Ci.nsIClearDataService.CLEAR_PLUGIN_DATA |
Ci.nsIClearDataService.CLEAR_MEDIA_DEVICES,
],
[
// NETWORK_CACHE
1 << 1,
Ci.nsIClearDataService.CLEAR_NETWORK_CACHE,
],
[
// IMAGE_CACHE
1 << 2,
Ci.nsIClearDataService.CLEAR_IMAGE_CACHE,
],
[
// HISTORY
1 << 3,
Ci.nsIClearDataService.CLEAR_HISTORY |
Ci.nsIClearDataService.CLEAR_SESSION_HISTORY,
],
[
// DOM_STORAGES
1 << 4,
Ci.nsIClearDataService.CLEAR_APPCACHE |
Ci.nsIClearDataService.CLEAR_DOM_QUOTA |
Ci.nsIClearDataService.CLEAR_DOM_PUSH_NOTIFICATIONS |
Ci.nsIClearDataService.CLEAR_REPORTS,
],
[
// AUTH_SESSIONS
1 << 5,
Ci.nsIClearDataService.CLEAR_AUTH_TOKENS |
Ci.nsIClearDataService.CLEAR_AUTH_CACHE,
],
[
// PERMISSIONS
1 << 6,
Ci.nsIClearDataService.CLEAR_PERMISSIONS,
],
[
// SITE_SETTINGS
1 << 7,
Ci.nsIClearDataService.CLEAR_CONTENT_PREFERENCES |
Ci.nsIClearDataService.CLEAR_DOM_PUSH_NOTIFICATIONS |
Ci.nsIClearDataService.CLEAR_SECURITY_SETTINGS,
],
[
// SITE_DATA
1 << 8,
Ci.nsIClearDataService.CLEAR_EME,
],
[
// ALL
1 << 9,
Ci.nsIClearDataService.CLEAR_ALL,
],
];
function convertFlags(aJavaFlags) {
const flags = ClearFlags.filter(cf => {
return cf[0] & aJavaFlags;
}).reduce((acc, cf) => {
return acc | cf[1];
}, 0);
return flags;
}
const GeckoViewStorageController = {
onEvent(aEvent, aData, aCallback) {
debug`onEvent ${aEvent} ${aData}`;
switch (aEvent) {
case "GeckoView:ClearData": {
this.clearData(aData.flags, aCallback);
break;
}
case "GeckoView:ClearSessionContextData": {
this.clearSessionContextData(aData.contextId);
break;
}
case "GeckoView:ClearHostData": {
this.clearHostData(aData.host, aData.flags, aCallback);
break;
}
}
},
async clearData(aFlags, aCallback) {
const flags = convertFlags(aFlags);
// storageAccessAPI permissions record every site that the user
// interacted with and thus mirror history quite closely. It makes
// sense to clear them when we clear history. However, since their absence
// indicates that we can purge cookies and site data for tracking origins without
// user interaction, we need to ensure that we only delete those permissions that
// do not have any existing storage.
if (flags & Ci.nsIClearDataService.CLEAR_HISTORY) {
const principalsCollector = new PrincipalsCollector();
const principals = await principalsCollector.getAllPrincipals();
await new Promise(resolve => {
Services.clearData.deleteUserInteractionForClearingHistory(
principals,
0,
resolve
);
});
}
new Promise(resolve => {
Services.clearData.deleteData(flags, resolve);
}).then(resultFlags => {
aCallback.onSuccess();
});
},
clearHostData(aHost, aFlags, aCallback) {
new Promise(resolve => {
Services.clearData.deleteDataFromHost(
aHost,
/* isUserRequest */ true,
convertFlags(aFlags),
resolve
);
}).then(resultFlags => {
aCallback.onSuccess();
});
},
clearSessionContextData(aContextId) {
const pattern = { geckoViewSessionContextId: aContextId };
debug`clearSessionContextData ${pattern}`;
Services.clearData.deleteDataFromOriginAttributesPattern(pattern);
// Call QMS explicitly to work around bug 1537882.
Services.qms.clearStoragesForOriginAttributesPattern(
JSON.stringify(pattern)
);
},
};
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