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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';
function debug(s) {
dump("-*- B2GAppMigrator.js: " + s + "\n");
}
const DEBUG = false;
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
const kMigrationMessageName = "webapps-before-update-merge";
const kIDBDirType = "indexedDBPDir";
const kProfileDirType = "ProfD";
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/FileUtils.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "appsService",
"@mozilla.org/AppsService;1",
"nsIAppsService");
function B2GAppMigrator() {
}
B2GAppMigrator.prototype = {
classID: Components.ID('{7211ece0-b458-4635-9afc-f8d7f376ee95}'),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
Ci.nsISupportsWeakReference]),
executeBrowserMigration: function() {
if (DEBUG) debug("Executing Browser Migration");
// The browser db file and directory names are hashed the same way
// everywhere, so it should be the same on all systems. We should
// be able to just hardcode it.
let browserDBDirName = "2959517650brreosw";
let browserDBFileName = browserDBDirName + ".sqlite";
// Storage directories need to be prefixed with the local id of
// the app
let browserLocalAppId = appsService.getAppLocalIdByManifestURL("app://browser.gaiamobile.org/manifest.webapp");
let browserAppStorageDirName = browserLocalAppId + "+f+app+++browser.gaiamobile.org";
// On the phone, the browser db will only be in the old IDB
// directory, since it only existed up until v2.0. On desktop, it
// will exist in the profile directory.
//
// Uses getDir with filename appending to make sure we don't
// create extra directories along the way if they don't already
// exist.
let browserDBFile = FileUtils.getDir(kIDBDirType,
["storage",
"persistent",
browserAppStorageDirName,
"idb"], false, true);
browserDBFile.append(browserDBFileName);
let browserDBDir = FileUtils.getDir(kIDBDirType,
["storage",
"persistent",
browserAppStorageDirName,
"idb",
browserDBDirName
], false, true);
if (!browserDBFile.exists()) {
if (DEBUG) debug("Browser DB " + browserDBFile.path + " does not exist, trying profile location");
browserDBFile = FileUtils.getDir(kProfileDirType,
["storage",
"persistent",
browserAppStorageDirName,
"idb"], false, true);
browserDBFile.append(browserDBFileName);
if (!browserDBFile.exists()) {
if (DEBUG) debug("Browser DB " + browserDBFile.path + " does not exist. Cannot copy browser db.");
return;
}
// If we have confirmed we have a DB file, we should also have a
// directory.
browserDBDir = FileUtils.getDir(kProfileDirType,
["storage",
"persistent",
browserAppStorageDirName,
"idb",
browserDBDirName
], false, true);
}
let systemLocalAppId = appsService.getAppLocalIdByManifestURL("app://system.gaiamobile.org/manifest.webapp");
let systemAppStorageDirName = systemLocalAppId + "+f+app+++system.gaiamobile.org";
// This check futureproofs the system DB storage directory. It
// currently exists outside of the profile but will most likely
// move into the profile at some point.
let systemDBDir = FileUtils.getDir(kIDBDirType,
["storage",
"persistent",
systemAppStorageDirName,
"idb"], false, true);
if (!systemDBDir.exists()) {
if (DEBUG) debug("System DB directory " + systemDBDir.path + " does not exist, trying profile location");
systemDBDir = FileUtils.getDir(kProfileDirType,
["storage",
"persistent",
systemAppStorageDirName,
"idb"], false, true);
if (!systemDBDir.exists()) {
if (DEBUG) debug("System DB directory " + systemDBDir.path + " does not exist. Cannot copy browser db.");
return;
}
}
if (DEBUG) {
debug("Browser DB file exists, copying");
debug("Browser local id: " + browserLocalAppId + "");
debug("System local id: " + systemLocalAppId + "");
debug("Browser DB file path: " + browserDBFile.path + "");
debug("Browser DB dir path: " + browserDBDir.path + "");
debug("System DB directory path: " + systemDBDir.path + "");
}
try {
browserDBFile.copyTo(systemDBDir, browserDBFileName);
} catch (e) {
debug("File copy caused error! " + e.name);
}
try {
browserDBDir.copyTo(systemDBDir, browserDBDirName);
} catch (e) {
debug("Dir copy caused error! " + e.name);
}
if (DEBUG) debug("Browser DB copied successfully");
},
observe: function(subject, topic, data) {
switch (topic) {
case kMigrationMessageName:
this.executeBrowserMigration();
break;
default:
debug("Unhandled topic: " + topic);
break;
}
}
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([B2GAppMigrator]);
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