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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* 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";
const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/ctypes.jsm");
Cu.import("resource://gre/modules/AppConstants.jsm");
const RECOVERYSERVICE_CID = Components.ID("{b3caca5d-0bb0-48c6-912b-6be6cbf08832}");
const RECOVERYSERVICE_CONTRACTID = "@mozilla.org/recovery-service;1";
function log(msg) {
dump("-*- RecoveryService: " + msg + "\n");
}
const isGonk = AppConstants.platform === 'gonk';
if (isGonk) {
var librecovery = (function() {
let library;
try {
library = ctypes.open("librecovery.so");
} catch (e) {
log("Unable to open librecovery.so");
throw Cr.NS_ERROR_FAILURE;
}
// Bug 1163956, modify updatePath from ctyps.char.ptr to ctype.char.array(4096)
// align with librecovery.h. 4096 comes from PATH_MAX
let FotaUpdateStatus = new ctypes.StructType("FotaUpdateStatus", [
{ result: ctypes.int },
{ updatePath: ctypes.char.array(4096) }
]);
return {
factoryReset: library.declare("factoryReset",
ctypes.default_abi,
ctypes.int),
installFotaUpdate: library.declare("installFotaUpdate",
ctypes.default_abi,
ctypes.int,
ctypes.char.ptr,
ctypes.int),
FotaUpdateStatus: FotaUpdateStatus,
getFotaUpdateStatus: library.declare("getFotaUpdateStatus",
ctypes.default_abi,
ctypes.int,
FotaUpdateStatus.ptr)
};
})();
}
const gFactoryResetFile = "__post_reset_cmd__";
function RecoveryService() {}
RecoveryService.prototype = {
classID: RECOVERYSERVICE_CID,
QueryInterface: XPCOMUtils.generateQI([Ci.nsIRecoveryService]),
classInfo: XPCOMUtils.generateCI({
classID: RECOVERYSERVICE_CID,
contractID: RECOVERYSERVICE_CONTRACTID,
interfaces: [Ci.nsIRecoveryService],
classDescription: "B2G Recovery Service"
}),
factoryReset: function RS_factoryReset(reason) {
if (!isGonk) {
Cr.NS_ERROR_FAILURE;
}
function doReset() {
// If this succeeds, then the device reboots and this never returns
if (librecovery.factoryReset() != 0) {
log("Error: Factory reset failed. Trying again after clearing cache.");
}
let cache = Cc["@mozilla.org/netwerk/cache-storage-service;1"]
.getService(Ci.nsICacheStorageService);
cache.clear();
if (librecovery.factoryReset() != 0) {
log("Error: Factory reset failed again");
}
}
log("factoryReset " + reason);
let commands = [];
if (reason == "wipe") {
let volumeService = Cc["@mozilla.org/telephony/volume-service;1"]
.getService(Ci.nsIVolumeService);
let volNames = volumeService.getVolumeNames();
log("Found " + volNames.length + " volumes");
for (let i = 0; i < volNames.length; i++) {
let name = volNames.queryElementAt(i, Ci.nsISupportsString);
let volume = volumeService.getVolumeByName(name.data);
log("Got volume: " + name.data + " at " + volume.mountPoint);
commands.push("wipe " + volume.mountPoint);
}
} else if (reason == "root") {
commands.push("root");
}
if (commands.length > 0) {
Cu.import("resource://gre/modules/osfile.jsm");
let dir = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
dir.initWithPath("/persist");
var postResetFile = dir.exists() ?
OS.Path.join("/persist", gFactoryResetFile):
OS.Path.join("/cache", gFactoryResetFile);
let encoder = new TextEncoder();
let text = commands.join("\n");
let array = encoder.encode(text);
let promise = OS.File.writeAtomic(postResetFile, array,
{ tmpPath: postResetFile + ".tmp" });
promise.then(doReset, function onError(error) {
log("Error: " + error);
});
} else {
doReset();
}
},
installFotaUpdate: function RS_installFotaUpdate(updatePath) {
if (!isGonk) {
throw Cr.NS_ERROR_FAILURE;
}
// If this succeeds, then the device reboots and this never returns
if (librecovery.installFotaUpdate(updatePath, updatePath.length) != 0) {
log("Error: FOTA install failed. Trying again after clearing cache.");
}
var cache = Cc["@mozilla.org/netwerk/cache-storage-service;1"].getService(Ci.nsICacheStorageService);
cache.clear();
if (librecovery.installFotaUpdate(updatePath, updatePath.length) != 0) {
log("Error: FOTA install failed again");
}
},
getFotaUpdateStatus: function RS_getFotaUpdateStatus() {
let status = Ci.nsIRecoveryService.FOTA_UPDATE_UNKNOWN;
if (isGonk) {
let cStatus = librecovery.FotaUpdateStatus();
if (librecovery.getFotaUpdateStatus(cStatus.address()) == 0) {
status = cStatus.result;
}
}
return status;
}
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([RecoveryService]);
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