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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 } from "resource:///modules/backup/BackupResource.sys.mjs";
import { Sqlite } from "resource://gre/modules/Sqlite.sys.mjs";
/**
* Class representing files that modify preferences and permissions within a user profile.
*/
export class PreferencesBackupResource extends BackupResource {
static get key() {
return "preferences";
}
static get requiresEncryption() {
return false;
}
async backup(stagingPath, profilePath = PathUtils.profileDir) {
// These are files that can be simply copied into the staging folder using
// IOUtils.copy.
const simpleCopyFiles = [
"xulstore.json",
"containers.json",
"handlers.json",
"search.json.mozlz4",
"user.js",
"chrome",
];
for (let fileName of simpleCopyFiles) {
let sourcePath = PathUtils.join(profilePath, fileName);
let destPath = PathUtils.join(stagingPath, fileName);
if (await IOUtils.exists(sourcePath)) {
await IOUtils.copy(sourcePath, destPath, { recursive: true });
}
}
const sqliteDatabases = ["permissions.sqlite", "content-prefs.sqlite"];
for (let fileName of sqliteDatabases) {
let sourcePath = PathUtils.join(profilePath, fileName);
let destPath = PathUtils.join(stagingPath, fileName);
let connection;
try {
connection = await Sqlite.openConnection({
path: sourcePath,
});
await connection.backup(destPath);
} finally {
await connection.close();
}
}
// prefs.js is a special case - we have a helper function to flush the
// current prefs state to disk off of the main thread.
let prefsDestPath = PathUtils.join(stagingPath, "prefs.js");
let prefsDestFile = await IOUtils.getFile(prefsDestPath);
await Services.prefs.backupPrefFile(prefsDestFile);
return null;
}
async measure(profilePath = PathUtils.profileDir) {
const files = [
"prefs.js",
"xulstore.json",
"permissions.sqlite",
"content-prefs.sqlite",
"containers.json",
"handlers.json",
"search.json.mozlz4",
"user.js",
];
let fullSize = 0;
for (let filePath of files) {
let resourcePath = PathUtils.join(profilePath, filePath);
let resourceSize = await BackupResource.getFileSize(resourcePath);
if (Number.isInteger(resourceSize)) {
fullSize += resourceSize;
}
}
const chromeDirectoryPath = PathUtils.join(profilePath, "chrome");
let chromeDirectorySize = await BackupResource.getDirectorySize(
chromeDirectoryPath
);
if (Number.isInteger(chromeDirectorySize)) {
fullSize += chromeDirectorySize;
}
Glean.browserBackup.preferencesSize.set(fullSize);
}
}
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