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79 lines
2.4 KiB
JavaScript
79 lines
2.4 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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import {
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BackupResource,
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bytesToFuzzyKilobytes,
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} from "resource:///modules/backup/BackupResource.sys.mjs";
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const lazy = {};
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ChromeUtils.defineESModuleGetters(lazy, {
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SessionStore: "resource:///modules/sessionstore/SessionStore.sys.mjs",
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});
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/**
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* Class representing Session store related files within a user profile.
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*/
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export class SessionStoreBackupResource extends BackupResource {
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static get key() {
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return "sessionstore";
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}
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static get requiresEncryption() {
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// Session store data does not require encryption, but if encryption is
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// disabled, then session cookies will be cleared from the backup before
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// writing it to the disk.
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return false;
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}
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async backup(stagingPath, profilePath = PathUtils.profileDir) {
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let sessionStoreState = lazy.SessionStore.getCurrentState(true);
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let sessionStorePath = PathUtils.join(stagingPath, "sessionstore.jsonlz4");
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/* Bug 1891854 - remove cookies from session store state if the backup file is
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* not encrypted. */
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await IOUtils.writeJSON(sessionStorePath, sessionStoreState, {
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compress: true,
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});
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await BackupResource.copyFiles(profilePath, stagingPath, [
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"sessionstore-backups",
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]);
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return null;
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}
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async recover(_manifestEntry, recoveryPath, destProfilePath) {
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await BackupResource.copyFiles(recoveryPath, destProfilePath, [
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"sessionstore.jsonlz4",
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"sessionstore-backups",
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]);
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return null;
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}
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async measure(profilePath = PathUtils.profileDir) {
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// Get the current state of the session store JSON and
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// measure it's uncompressed size.
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let sessionStoreJson = lazy.SessionStore.getCurrentState(true);
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let sessionStoreSize = new TextEncoder().encode(
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JSON.stringify(sessionStoreJson)
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).byteLength;
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let sessionStoreNearestTenthKb = bytesToFuzzyKilobytes(sessionStoreSize);
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Glean.browserBackup.sessionStoreSize.set(sessionStoreNearestTenthKb);
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let sessionStoreBackupsDirectoryPath = PathUtils.join(
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profilePath,
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"sessionstore-backups"
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);
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let sessionStoreBackupsDirectorySize =
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await BackupResource.getDirectorySize(sessionStoreBackupsDirectoryPath);
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Glean.browserBackup.sessionStoreBackupsDirectorySize.set(
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sessionStoreBackupsDirectorySize
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);
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}
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}
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