为什么AngularJS与UI的路由器保持烧制$ stateChangeStart事件？ [英] Why does AngularJS with ui-router keep firing the $stateChangeStart event?
问题描述
我试图阻止所有的UI路由器的状态变化，直到我已经认证的用户：
I'm trying to block all ui-router state changes until I've authenticated the user:
$rootScope.$on('$stateChangeStart', function (event, next, toParams) {
if (!authenticated) {
event.preventDefault()
//following $timeout is emulating a backend $http.get('/auth/') request
$timeout(function() {
authenticated = true
$state.go(next,toParams)
},1000)
}
})
我拒绝所有的状态变化，直到用户已通过验证，但如果我去一个无效的URL中使用否则（）的配置，我得到一个无限循环使用消息：
I reject all state changes until the user has been authenticated, but if I go to an invalid URL that uses the otherwise() configuration, I get an infinite loop with a message:
Error: [$rootScope:infdig] 10 $digest() iterations reached. Aborting!
Watchers fired in the last 5 iterations: [["fn: $locationWatch; newVal: 7; oldVal: 6"],["fn: $locationWatch; newVal: 8; oldVal: 7"],["fn: $locationWatch; newVal: 9; oldVal: 8"],["fn: $locationWatch; newVal: 10; oldVal: 9"],["fn: $locationWatch; newVal: 11; oldVal: 10"]]
下面是我的 SSCCE 。与蟒蛇-m SimpleHTTPServer 7070 即成起来并转到本地主机：7070 / test.html的＃/条看它爆炸在你的脸上。而直接导航到唯一有效angularjs位置不炸掉本地主机：7070 / test.html的＃/富：
Below is my SSCCE. Serve it up with python -m SimpleHTTPServer 7070 and go to localhost:7070/test.html#/bar to see it explode in your face. Whereas directly navigating to the only valid angularjs location does not blow up localhost:7070/test.html#/foo:
<!doctype html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.10/angular-ui-router.min.js"></script>
</head>
<body ng-app="clientApp">
<div ui-view="" ></div>
<script>
var app = angular.module('clientApp', ['ui.router'])
var myRouteProvider = [
'$stateProvider', '$urlRouterProvider',
function($stateProvider, $urlRouterProvider) {
$urlRouterProvider.otherwise('/foo');
$stateProvider.state('/foo', {
url: '/foo',
template: '<div>In Foo now</div>',
reloadOnSearch: false
})
}]
app.config(myRouteProvider)
var authenticated = false
app.run([
'$rootScope', '$log','$state','$timeout',
function ($rootScope, $log, $state, $timeout) {
$rootScope.$on('$stateChangeStart', function (event, next, toParams) {
if (!authenticated) {
event.preventDefault()
//following $timeout is emulating a backend $http.get('/auth/') request
$timeout(function() {
authenticated = true
$state.go(next,toParams)
},1000)
}
})
}
])
</script>
</body>
</html>
有没有我应该用它来完成这一认证阻断一种替代方法？我不知道这验证阻塞只是客户端。我没有示出在本实施例的事物的服务器侧
Is there an alternative method I should use to accomplish this authentication blocking? I do realize this authentication blocking is client side only. I'm not showing the server side of things in this example.
推荐答案
Fakeout。这是 $ urlRouterProvider 和 $ stateProvider 之间的交互问题。我不应该使用 $ urlRouterProvider 我的，否则。我应该使用类似：
Fakeout. This is an interaction issue between $urlRouterProvider and $stateProvider. I shouldn't be using $urlRouterProvider for my otherwise. I should be using something like:
$stateProvider.state("otherwise", {
url: "*path",
template: "Invalid Location",
controller: [
'$timeout','$state',
function($timeout, $state ) {
$timeout(function() {
$state.go('/foo')
},2000)
}]
});
甚至transparent'ish重定向：
Or even a transparent'ish redirect:
$stateProvider.state("otherwise", {
url: "*path",
template: "",
controller: [
'$state',
function($state) {
$state.go('/foo')
}]
});
现在总共：
<!doctype html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.10/angular-ui-router.min.js"></script>
</head>
<body ng-app="clientApp">
<div ui-view="" ></div>
<script>
var app = angular.module('clientApp', ['ui.router'])
var myRouteProvider = [
'$stateProvider',
function($stateProvider) {
$stateProvider.state('/foo', {
url: '/foo',
template: '<div>In Foo now</div>',
reloadOnSearch: false
})
$stateProvider.state("otherwise", {
url: "*path",
template: "",
controller: [
'$state',
function($state) {
$state.go('/foo')
}]
});
}]
app.config(myRouteProvider)
var authenticated = false
app.run([
'$rootScope', '$log','$state','$timeout',
function ($rootScope, $log, $state, $timeout) {
$rootScope.$on('$stateChangeStart', function (event, next, toParams) {
if (!authenticated) {
event.preventDefault()
//following $timeout is emulating a backend $http.get('/auth/') request
$timeout(function() {
authenticated = true
$state.go(next,toParams)
},1000)
}
})
}
])
</script>
</body>
</html>
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