116 lines
3.7 KiB
JavaScript
116 lines
3.7 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
|
|
/* 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 } = Components;
|
|
|
|
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
|
|
|
|
const PACKAGEDAPPUTILS_CONTRACTID = "@mozilla.org/network/packaged-app-utils;1";
|
|
const PACKAGEDAPPUTILS_CID = Components.ID("{fe8f1c2e-3c13-11e5-9a3f-bbf47d1e6697}");
|
|
|
|
function PackagedAppUtils() {
|
|
this.packageIdentifier = '';
|
|
this.packageOrigin = '';
|
|
}
|
|
|
|
var DEBUG = 0
|
|
function debug(s) {
|
|
if (DEBUG) {
|
|
dump("-*- PackagedAppUtils: " + s + "\n");
|
|
}
|
|
}
|
|
|
|
PackagedAppUtils.prototype = {
|
|
classID: PACKAGEDAPPUTILS_CID,
|
|
contractID: PACKAGEDAPPUTILS_CONTRACTID,
|
|
classDescription: "Packaged App Utils",
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIPackagedAppUtils]),
|
|
|
|
verifyManifest: function(aHeader, aManifest, aCallback, aDeveloperMode) {
|
|
debug("Manifest: " + aManifest);
|
|
|
|
// parse signature from header
|
|
let signature;
|
|
const signatureField = "manifest-signature: ";
|
|
for (let item of aHeader.split('\r\n')) {
|
|
if (item.substr(0, signatureField.length) == signatureField) {
|
|
signature = item.substr(signatureField.length);
|
|
break;
|
|
}
|
|
}
|
|
if (!signature) {
|
|
debug("No signature in header");
|
|
aCallback.fireVerifiedEvent(true, false);
|
|
return;
|
|
}
|
|
debug("Signature: " + signature);
|
|
|
|
try {
|
|
// Remove header
|
|
let manifestBody = aManifest.substr(aManifest.indexOf('\r\n\r\n') + 4);
|
|
debug("manifestBody: " + manifestBody);
|
|
|
|
// Parse manifest, store resource hashes
|
|
let manifestObj = JSON.parse(manifestBody);
|
|
this.packageIdentifier = manifestObj["package-identifier"];
|
|
this.packageOrigin = manifestObj["moz-package-origin"];
|
|
this.resources = manifestObj["moz-resources"];
|
|
|
|
// Base64 decode
|
|
signature = atob(signature);
|
|
} catch (e) {
|
|
debug("Manifest parsing failure");
|
|
aCallback.fireVerifiedEvent(true, false);
|
|
return;
|
|
}
|
|
|
|
let manifestStream = Cc["@mozilla.org/io/string-input-stream;1"]
|
|
.createInstance(Ci.nsIStringInputStream);
|
|
let signatureStream = Cc["@mozilla.org/io/string-input-stream;1"]
|
|
.createInstance(Ci.nsIStringInputStream);
|
|
manifestStream.setData(aManifest, aManifest.length);
|
|
signatureStream.setData(signature, signature.length);
|
|
|
|
let certDb;
|
|
try {
|
|
certDb = Cc["@mozilla.org/security/x509certdb;1"]
|
|
.getService(Ci.nsIX509CertDB);
|
|
} catch (e) {
|
|
debug("nsIX509CertDB error: " + e);
|
|
// unrecoverable error, don't bug the user
|
|
throw "CERTDB_ERROR";
|
|
}
|
|
|
|
let trustedRoot = aDeveloperMode ? Ci.nsIX509CertDB.DeveloperImportedRoot
|
|
: Ci.nsIX509CertDB.PrivilegedPackageRoot;
|
|
|
|
certDb.verifySignedManifestAsync(trustedRoot, manifestStream, signatureStream,
|
|
function(aRv, aCert) {
|
|
aCallback.fireVerifiedEvent(true, Components.isSuccessCode(aRv));
|
|
});
|
|
},
|
|
|
|
checkIntegrity: function(aFileName, aHashValue, aCallback) {
|
|
debug("checkIntegrity() " + aFileName + ": " + aHashValue + "\n");
|
|
if (!this.resources) {
|
|
debug("resource hashes not found");
|
|
aCallback.fireVerifiedEvent(false, false);
|
|
return;
|
|
}
|
|
for (let r of this.resources) {
|
|
if (r.src === aFileName) {
|
|
debug("found integrity = " + r.integrity);
|
|
aCallback.fireVerifiedEvent(false, r.integrity === aHashValue);
|
|
return;
|
|
}
|
|
}
|
|
aCallback.fireVerifiedEvent(false, false);
|
|
},
|
|
};
|
|
|
|
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PackagedAppUtils]);
|