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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 https://mozilla.org/MPL/2.0/. */
import {
BackupResource,
bytesToFuzzyKilobytes,
} from "resource:///modules/backup/BackupResource.sys.mjs";
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
SessionStore: "resource:///modules/sessionstore/SessionStore.sys.mjs",
});
/**
* Class representing Session store related files within a user profile.
*/
export class SessionStoreBackupResource extends BackupResource {
static get key() {
return "sessionstore";
}
static get requiresEncryption() {
// Session store data does not require encryption, but if encryption is
// disabled, then session cookies will be cleared from the backup before
// writing it to the disk.
return false;
}
async measure(profilePath = PathUtils.profileDir) {
// Get the current state of the session store JSON and
// measure it's uncompressed size.
let sessionStoreJson = lazy.SessionStore.getCurrentState(true);
let sessionStoreSize = new TextEncoder().encode(
JSON.stringify(sessionStoreJson)
).byteLength;
let sessionStoreNearestTenthKb = bytesToFuzzyKilobytes(sessionStoreSize);
Glean.browserBackup.sessionStoreSize.set(sessionStoreNearestTenthKb);
let sessionStoreBackupsDirectoryPath = PathUtils.join(
profilePath,
"sessionstore-backups"
);
let sessionStoreBackupsDirectorySize =
await BackupResource.getDirectorySize(sessionStoreBackupsDirectoryPath);
Glean.browserBackup.sessionStoreBackupsDirectorySize.set(
sessionStoreBackupsDirectorySize
);
}
}
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