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/* -*- js-indent-level: 2; indent-tabs-mode: nil -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* 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/. */
// functions common to Identity.jsm and MinimalIdentity.jsm
"use strict";
this.EXPORTED_SYMBOLS = [
"checkDeprecated",
"checkRenamed",
"getRandomId",
"objectCopy",
"makeMessageObject",
];
const Cu = Components.utils;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "uuidgen",
"@mozilla.org/uuid-generator;1",
"nsIUUIDGenerator");
XPCOMUtils.defineLazyModuleGetter(this, "Logger",
"resource://gre/modules/identity/LogUtils.jsm");
function log(...aMessageArgs) {
Logger.log.apply(Logger, ["Identity"].concat(aMessageArgs));
}
function defined(item) {
return typeof item !== 'undefined';
}
var checkDeprecated = this.checkDeprecated = function checkDeprecated(aOptions, aField) {
if (defined(aOptions[aField])) {
log("WARNING: field is deprecated:", aField);
return true;
}
return false;
};
this.checkRenamed = function checkRenamed(aOptions, aOldName, aNewName) {
if (defined(aOptions[aOldName]) &&
defined(aOptions[aNewName])) {
let err = "You cannot provide both " + aOldName + " and " + aNewName;
Logger.reportError(err);
throw new Error(err);
}
if (checkDeprecated(aOptions, aOldName)) {
aOptions[aNewName] = aOptions[aOldName];
delete(aOptions[aOldName]);
}
};
this.getRandomId = function getRandomId() {
return uuidgen.generateUUID().toString();
};
/*
* copy source object into target, excluding private properties
* (those whose names begin with an underscore)
*/
this.objectCopy = function objectCopy(source, target) {
let desc;
Object.getOwnPropertyNames(source).forEach(function(name) {
if (name[0] !== '_') {
desc = Object.getOwnPropertyDescriptor(source, name);
Object.defineProperty(target, name, desc);
}
});
};
this.makeMessageObject = function makeMessageObject(aRpCaller) {
let options = {};
options.id = aRpCaller.id;
options.origin = aRpCaller.origin;
// Backwards compatibility with Persona beta:
// loggedInUser can be undefined, null, or a string
options.loggedInUser = aRpCaller.loggedInUser;
// Special flag for internal calls for Persona in b2g
options._internal = aRpCaller._internal;
Object.keys(aRpCaller).forEach(function(option) {
// Duplicate the callerobject, scrubbing out functions and other
// internal variables (like _mm, the message manager object)
if (!Object.hasOwnProperty(this, option)
&& option[0] !== '_'
&& typeof aRpCaller[option] !== 'function') {
options[option] = aRpCaller[option];
}
});
// check validity of message structure
if ((typeof options.id === 'undefined') ||
(typeof options.origin === 'undefined')) {
let err = "id and origin required in relying-party message: " + JSON.stringify(options);
reportError(err);
throw new Error(err);
}
return options;
}
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