Persona Express AngularJS module

auth.jade

html(ng-app="persona")
    body(ng-controller="PersonaCtrl")
        div(ng-hide="verified")
            button(ng-click="verify()") Verify Identity
        div(ng-show="verified")
            | Hello {{email}}
            br
            button(ng-click="logout()") Log Out
        div(ng-show="error")
            strong {{error}}
    script(src="https://login.persona.org/include.js")
    script(src="angular.js")
    script(src="persona.js")

auth.js

/*
Sample authorize routes to support persona.js client library
 */

exports.setup = function(app) {
  app.get("/auth", auth);
    app.get("/logout", logout);
    app.post("/persona/status", personaStatus);
};

function isAuthorized(req) {
    var email = req.session.email || false;
    var authorized = false;

    // todo: verify in DB
    if(email == "your-email-here@example.com") {
        authorized = true;
    }
    req.session.authorized = authorized;

    return {email: email, authorized: authorized};
}

function personaStatus(req, res) {
    res.json(isAuthorized(req));
}

function auth(req, res) {
    res.render("auth", isAuthorized(req));
}

function logout(req, res) {
    req.session = null;
    res.redirect("/auth");
}

persona.js

/* Persona Express AngularJS module
 * ------------------------------------------------------------------
 * This is glue for the following:
 * Node             http://nodejs.org
 * Express          http://expressjs.com/
 * AngularJS        http://angularjs.org
 * Mozilla Persona  http://www.mozilla.org/en-US/persona/
 * express-persona  http://jbuck.github.com/express-persona/

 * This program is free software. It comes without any warranty, to
 * the extent permitted by applicable law. You can redistribute it
 * and/or modify it under the terms of the Do What The F*** You Want
 * To Public License, Version 2, as published by Sam Hocevar. See
 * http://sam.zoy.org/wtfpl/COPYING for more details.

 * Please don't sue: Barnabas Kendall (barnabas.kendall@gmail.com)
 *
 * This library assumes express-persona default routes,
 * persona/verify and persona/logout.
 * In addition to these, your app should expose another route:
 * persona/status, which should return
 *      {email: "me@example.com"}
 * if verified or
 *      {email: false}
 * if not verified.
  */

angular.module('persona', []);

angular.module("persona").factory("personaSvc", ["$http", "$q", function ($http, $q) {

  return {
        verify:function () {
            var deferred = $q.defer();
            navigator.id.get(function (assertion) {
                $http.post("/persona/verify", {assertion:assertion})
                    .then(function (response) {
                        if (response.data.status != "okay") {
                            deferred.reject(response.data.reason);
                        } else {
                            deferred.resolve(response.data.email);
                        }
                    });
            });
            return deferred.promise;
        },
        logout:function () {
            return $http.post("/persona/logout").then(function (response) {
                if (response.data.status != "okay") {
                    $q.reject(response.data.reason);
                }
                return response.data.email;
            });
        },
        status:function () {
            return $http.post("/persona/status").then(function (response) {
                return response.data;
            });
        }
    };
}]);

// Persona controller; exposes login and logout methods, set state for UI
function PersonaCtrl($scope, personaSvc) {
    // initialize properties
    angular.extend($scope, { verified:false, error:false, email:"" });

    $scope.verify = function () {
        personaSvc.verify().then(function (email) {
            angular.extend($scope, { verified:true, error:false, email:email });
            $scope.status();
        }, function (err) {
            angular.extend($scope, { verified:false, error:err});
        });
    };

    $scope.logout = function () {
        personaSvc.logout().then(function () {
            angular.extend($scope, { verified:false, error:false});
        }, function (err) {
            $scope.error = err;
        });
    };

    $scope.status = function () {
        personaSvc.status().then(function (data) {
            // in addition to email, everything else returned by persona/status will be added to the scope
            // this could be the chance to expose data from your local DB, for example
            angular.extend($scope, data, { error:false, verified:!!data.email, email:data.email });
        }, function (err) {
            $scope.error = err;
        });
    };

    // setup; check status once on init
    $scope.status();
}
PersonaCtrl.$inject = ["$scope", "personaSvc"];

The gist didn't work properly for me. The reason is that the $http.post call in the navigator.id.get inside the verify is not part of an angular context. I had to switch to using XMLHttpRequest and when it finishes, use a $broadcast to notify the controller.