Angular 2 -在每个http请求中附加withCredentials = true

Question

我使用的是angular 2(不是最新的，通过angular-cli: 1.0.0-beta.11-webpack.9-4使用)，我必须为每个http请求设置withCredentials为true。我尝试使用

为一个请求设置它

http.get('http://my.domain.com/request'， {withCredentials: true})

和一切都很好，但我试图使用一些东西在bootstrap如下，但没有得到任何成功

import './polyfills.ts';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { environment } from './environments/environment';
import { AppModule } from './app/';
import {Http, Headers, BaseRequestOptions, RequestOptions, BrowserXhr} from '@angular/http';
if (environment.production) {
  enableProdMode();
}
export class MyRequestOptions extends BaseRequestOptions {
  constructor () {
    super();
    this.headers.append('withCredentials','true');
  }
}
platformBrowserDynamic().bootstrapModule(AppModule, 
  [{ provide: RequestOptions, useClass: MyRequestOptions}]
);

Answer 1

我不知道它是否需要了，但我有同样的问题，我已经用这种方式解决了:

1. 创建BaseRequestOptions的子类(扩展了RequestOptions):

   import { Headers, BaseRequestOptions } from "@angular/http";
   export class AuthRequestOptions extends BaseRequestOptions {
      constructor() {
         super();
         this.withCredentials = true;
      }
   }
   

2. 在应用程序引导中注册

   import { RequestOptions } from '@angular/http';
   import { AuthRequestOptions } from './<path>/AuthRequestOptions';
   @NgModule({
      bootstrap: [...],
      imports: [...],
      providers: [
         { provide: RequestOptions, useClass: AuthRequestOptions},
         ...
      ]
   }...
   

(在我的例子中，这是与CORS+NTLMAuthentication一起工作的)

Answer 2

如Sierrodc所示，Angular 4.3+允许使用拦截器来配置这个。下面显示了一个使用NTLMAuthentication的完整示例:

拦截器

@Injectable()
export class WithCredentialsInterceptor implements HttpInterceptor {

    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
        request = request.clone({
            withCredentials: true
        });
        return next.handle(request);
    }
}

模块配置(拦截器允许与其他拦截器堆叠):

@NgModule({
    imports: [CommonModule, BasicRoutingModule, HttpClientModule],
    declarations: [HomeComponent, CounterComponent, FetchDataComponent],
    providers: [
        {
            provide: HTTP_INTERCEPTORS,
            useClass: WithCredentialsInterceptor,
            multi: true
        },
        {
            provide: HTTP_INTERCEPTORS,
            useClass: BaseUrlInterceptor,
            multi: true
        }
    ]
})
export class BasicModule { }

实际使用

constructor(
    private http: HttpClient) {
    this.http.get<WeatherForecast[]>('api/SampleData/WeatherForecasts')
        .subscribe(result => {
            this.forecasts = result;
        },
        error => {
            console.error(error);
        });
}