angular4 httpclient csrf不发送x-xsrf-token

Question

在角度文档中,提到angular httpclient将自动XSRF-TOKEN在X-XSRF-TOKENpost请求的标题中发送cookie的值.文档链接

但它并没有为我发送标题.这是我的代码

Nodejs用于设置cookie的代码

router.get('/set-csrf',function(req,res,next){
    res.setHeader('Set-Cookie', "XSRF-TOKEN=abc;Path=/; HttpOnly; SameSite=Strict");    
    res.send();
  })

我在app.module.ts中使用了httpclient

imports: [
  HttpClientModule
]

**以上代码仅用于调试目的.我没有set-csrf端点.

但是当我发送帖子请求时它不会发送任何标题.我无法调试.

我已经在angular的github存储库中添加了这个问题.HttpXsrfInterceptor检查请求是GET还是HEAD,或者是否以http开头.如果为true,则跳过添加标题.

这是HttpXsrfInterceptor类中的代码

intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    const lcUrl = req.url.toLowerCase();
    // Skip both non-mutating requests and absolute URLs.
    // Non-mutating requests don't require a token, and absolute URLs require special handling
    // anyway as the cookie set
    // on our origin is not the same as the token expected by another origin.
    if (req.method === 'GET' || req.method === 'HEAD' || lcUrl.startsWith('http://') ||
        lcUrl.startsWith('https://')) {
      return next.handle(req);
    }
    const token = this.tokenService.getToken();

    // Be careful not to overwrite an existing header of the same name.
    if (token !== null && !req.headers.has(this.headerName)) {
      req = req.clone({headers: req.headers.set(this.headerName, token)});
    }
    return next.handle(req);
  }

我不确定为什么他们跳过了http/s部分.这是我在github中的问题

Answer 1

你在寻找什么HttpClientXsrfModule.

请在此处阅读更多相关信息:https://angular.io/api/common/http/HttpClientXsrfModule.

你的用法应该是这样的:

imports: [   
 HttpClientModule,  
 HttpClientXsrfModule.withOptions({
   cookieName: 'My-Xsrf-Cookie', // this is optional
   headerName: 'My-Xsrf-Header' // this is optional
 }) 
]

此外,如果您的代码通过绝对URL定位API,则默认的CSRF拦截器不会开箱即用.相反,你必须实现自己的拦截器,它不会忽略绝对路径.

@Injectable()
export class HttpXsrfInterceptor implements HttpInterceptor {

  constructor(private tokenExtractor: HttpXsrfTokenExtractor) {
  }

  intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    const headerName = 'X-XSRF-TOKEN';
    let token = this.tokenExtractor.getToken() as string;
    if (token !== null && !req.headers.has(headerName)) {
      req = req.clone({ headers: req.headers.set(headerName, token) });
    }
    return next.handle(req);
  }
}

最后将其添加到您的提供商:

providers: [
  { provide: HTTP_INTERCEPTORS, useClass: HttpXsrfInterceptor, multi: true }
]

Answer 2

我想正确的方法是withOptions.我使用withConfig并得到错误Property 'withConfig' does not exist on type 'typeof HttpClientXsrfModule'.这是文档中的输入问题.您需要使用"withOptions"HttpClientXsrfModule.withOptions({ cookieName: 'My-Xsrf-Cookie', headerName: 'My-Xsrf-Header', })