[英]Angular 2 not sending Authorization header using JWT authentication
我正在尝试使用Angular2作为前端和Cakephp 3作为REST Api创建一个应用程序,身份验证工作正常,但是当我尝试访问任何其他URL时,我得到了401未经授权状态,并且我注意到请求方法是选项而不是我在代码中使用的GET ,并且带有我的令牌的Authorization标头未发送到服务器:
这是我的user.service.ts代码:
constructor(private http: Http,
private router: Router,
) { }
login(email: string, password: string){
let headers: Headers = new Headers({ 'Accept': 'application/json','Content-Type': 'application/json' });
let options: RequestOptions = new RequestOptions({headers: headers});
return this.http.post('http://www.students.com/api/users/token.json', {email: email, password: password}, options)
.map((data: Response)=> data.json())
.subscribe(
(data)=> this.handlData(data),
(error)=> this.handlError(error)
);
}
getSessionData(){
let token = localStorage.getItem('usr_token');
let headers = new Headers({ 'Accept': 'application/json', 'Authorization': 'Bearer ' + token });
let options: RequestOptions = new RequestOptions({headers: headers});
return this.http.get('http://www.students.com/api/users/getSessionData', options).subscribe(
data => console.log(data),
err => console.log(err)
);
}
handlData(data){
if(data.success){
let usrData = data.data.user;
this.user = new User(usrData.email, usrData.firstname, usrData.lastname, usrData.role, data.data.token);
localStorage.setItem('id_token', data.data.token);
}
}
handlError(error){
console.log(error);
}
我尝试使用angular2-jwt模块,但是我遇到了相同的错误,并且为了确保我的API正常运行,我使用Postman chrome扩展程序对其进行了测试,并按预期工作:
这是我的Apache2 VirtualHost配置
<VirtualHost *:80>
ServerAdmin webmaster@localhost
DocumentRoot /var/www/html/students
ServerName www.students.com
<Directory /var/www/html/students>
Require all granted
Options Indexes FollowSymLinks Includes
AllowOverride all
</Directory>
Header always set Access-Control-Allow-Origin "*"
Header always set Access-Control-Allow-Methods "POST, GET, OPTIONS"
Header always set Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept, Authorization"
</VirtualHost>
有人遇到同样的问题吗? 任何想法为什么会这样?
这不是Angular的问题,而是您的后端。 Angular正在尝试通过检查服务器是否对OPTIONS请求返回OK来发出预检请求。 您应该将后端设置为以200或204响应OPTIONS请求。
如果您使用的是node.js:
app.use('/api', (req, res, next) => {
/** Browser check for pre-flight request to determine whether the server is webdav compatible */
if ('OPTIONS' == req.method) {
res.sendStatus(204);
}
else next();
});
或laravel(PHP):
App::before(function($request)
{
// Sent by the browser since request come in as cross-site AJAX
// The cross-site headers are sent via .htaccess
if ($request->getMethod() == "OPTIONS")
return new SuccessResponse();
});
这将告诉浏览器服务器可以适当地处理webdav请求方法。
更新:在CakePHP上由asker添加:
public function initialize() {
parent::initialize();
if($this->request->is('options')) {
$this->response->statusCode(204);
$this->response->send();
die();
}
$this->Auth->allow(['add', 'token']);
}
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