一个登录注册验证的实现

参考：
http://jasonwatmore.com/post/2014/05/26/AngularJS-Basic-HTTP-Authentication-Example.aspx

1.登录控制器

'use strict';
  
angular.module('Authentication')
  
.controller('LoginController',
    ['$scope', '$rootScope', '$location', 'AuthenticationService',
    function ($scope, $rootScope, $location, AuthenticationService) {
        // reset login status
        AuthenticationService.ClearCredentials();
  
        $scope.login = function () {
            $scope.dataLoading = true;
            AuthenticationService.Login($scope.username, $scope.password, function(response) {
                if(response.success) {
                    AuthenticationService.SetCredentials($scope.username, $scope.password);
                    $location.path('/');
                } else {
                    $scope.error = response.message;
                    $scope.dataLoading = false;
                }
            });
        };
    }]);

2.验证service

'use strict';
  
angular.module('Authentication')
  
.factory('AuthenticationService',
    ['Base64', '$http', '$cookieStore', '$rootScope', '$timeout',
    function (Base64, $http, $cookieStore, $rootScope, $timeout) {
        var service = {};
 
        service.Login = function (username, password, callback) {
 
            /* Dummy authentication for testing, uses $timeout to simulate api call
             ----------------------------------------------*/
            $timeout(function(){
                var response = { success: username === 'test' && password === 'test' };
                if(!response.success) {
                    response.message = 'Username or password is incorrect';
                }
                callback(response);
            }, 1000);
 
 
            /* Use this for real authentication
             ----------------------------------------------*/
            //$http.post('/api/authenticate', { username: username, password: password })
            //    .success(function (response) {
            //        callback(response);
            //    });
 
        };
  
        service.SetCredentials = function (username, password) {
            var authdata = Base64.encode(username + ':' + password);
  
            $rootScope.globals = {
                currentUser: {
                    username: username,
                    authdata: authdata
                }
            };
  
            $http.defaults.headers.common['Authorization'] = 'Basic ' + authdata; // jshint ignore:line
            $cookieStore.put('globals', $rootScope.globals);
        };
  
        service.ClearCredentials = function () {
            $rootScope.globals = {};
            $cookieStore.remove('globals');
            $http.defaults.headers.common.Authorization = 'Basic ';
        };
  
        return service;
    }])
  
.factory('Base64', function () {
    /* jshint ignore:start */
  
    var keyStr = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
  
    return {
        encode: function (input) {
            var output = "";
            var chr1, chr2, chr3 = "";
            var enc1, enc2, enc3, enc4 = "";
            var i = 0;
  
            do {
                chr1 = input.charCodeAt(i++);
                chr2 = input.charCodeAt(i++);
                chr3 = input.charCodeAt(i++);
  
                enc1 = chr1 >> 2;
                enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
                enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
                enc4 = chr3 & 63;
  
                if (isNaN(chr2)) {
                    enc3 = enc4 = 64;
                } else if (isNaN(chr3)) {
                    enc4 = 64;
                }
  
                output = output +
                    keyStr.charAt(enc1) +
                    keyStr.charAt(enc2) +
                    keyStr.charAt(enc3) +
                    keyStr.charAt(enc4);
                chr1 = chr2 = chr3 = "";
                enc1 = enc2 = enc3 = enc4 = "";
            } while (i < input.length);
  
            return output;
        },
  
        decode: function (input) {
            var output = "";
            var chr1, chr2, chr3 = "";
            var enc1, enc2, enc3, enc4 = "";
            var i = 0;
  
            // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
            var base64test = /[^A-Za-z0-9\+\/\=]/g;
            if (base64test.exec(input)) {
                window.alert("There were invalid base64 characters in the input text.\n" +
                    "Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\n" +
                    "Expect errors in decoding.");
            }
            input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
  
            do {
                enc1 = keyStr.indexOf(input.charAt(i++));
                enc2 = keyStr.indexOf(input.charAt(i++));
                enc3 = keyStr.indexOf(input.charAt(i++));
                enc4 = keyStr.indexOf(input.charAt(i++));
  
                chr1 = (enc1 << 2) | (enc2 >> 4);
                chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
                chr3 = ((enc3 & 3) << 6) | enc4;
  
                output = output + String.fromCharCode(chr1);
  
                if (enc3 != 64) {
                    output = output + String.fromCharCode(chr2);
                }
                if (enc4 != 64) {
                    output = output + String.fromCharCode(chr3);
                }
  
                chr1 = chr2 = chr3 = "";
                enc1 = enc2 = enc3 = enc4 = "";
  
            } while (i < input.length);
  
            return output;
        }
    };
  
    /* jshint ignore:end */
});

3.全局app

'use strict';
 
// declare modules
angular.module('Authentication', []);
angular.module('Home', []);
 
angular.module('BasicHttpAuthExample', [
    'Authentication',
    'Home',
    'ngRoute',
    'ngCookies'
])
  
.config(['$routeProvider', function ($routeProvider) {
 
    $routeProvider
        .when('/login', {
            controller: 'LoginController',
            templateUrl: 'modules/authentication/views/login.html'
        })
  
        .when('/', {
            controller: 'HomeController',
            templateUrl: 'modules/home/views/home.html'
        })
  
        .otherwise({ redirectTo: '/login' });
}])
  
.run(['$rootScope', '$location', '$cookieStore', '$http',
    function ($rootScope, $location, $cookieStore, $http) {
        // keep user logged in after page refresh
        $rootScope.globals = $cookieStore.get('globals') || {};
        if ($rootScope.globals.currentUser) {
            $http.defaults.headers.common['Authorization'] = 'Basic ' + $rootScope.globals.currentUser.authdata; // jshint ignore:line
        }
  
        $rootScope.$on('$locationChangeStart', function (event, next, current) {
            // redirect to login page if not logged in
            if ($location.path() !== '/login' && !$rootScope.globals.currentUser) {
                $location.path('/login');
            }
        });
    }]);