1 files changed, 111 insertions, 0 deletions
diff --git a/toolkit/identity/IdentityUtils.jsm b/toolkit/identity/IdentityUtils.jsm
new file mode 100644
index 000000000..a34c0b133
--- /dev/null
+++ b/toolkit/identity/IdentityUtils.jsm
@@ -0,0 +1,111 @@
+/* -*- 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;
+}
+