.NET CORE API 与 Angular 4 - cookie 令牌和请求令牌已交换

Question

我在尝试使用 Angular 和 .NET CORE 实现 XSRF 时不断收到此消息："Validation of the provided antiforgery token failed. The cookie token and the request token were swapped." 我在 Angular 和API。有人有什么想法吗？

进程

Angular 初始调用此 API 方法来检索 cookie

    [HttpGet("startSession")]
    public async Task<IActionResult> StartSession()
    {
        AntiforgeryTokenSet tokens = this.antiForgery.GetAndStoreTokens(this.HttpContext);

        this.HttpContext.Response.Cookies.Append(this.options.Value.Cookie.Name, tokens.RequestToken, new CookieOptions { HttpOnly = false });

        return this.Ok(
            new
            {
                Success = true
            });
    }

Angular 然后拦截下一个 POST 请求并略微覆盖默认的 XSRF 处理，因为我需要它来处理 HTTPS URL

    // Override default Angular XSRF handling since it won't work for         
    absolute URLs and we have to prefix with "https://"
    // Source:https://github.com/angular/angular/blob/master/packages/common/http/src/xsrf.ts
    @Injectable()
    export class HchbHttpXsrfInterceptor implements HttpInterceptor {
    constructor(
    private tokenService: HttpXsrfTokenExtractor) {}

    intercept(req: HttpRequest<any>, next: HttpHandler): 
    Observable<HttpEvent<any>> {
    const headerName = 'X-XSRF-TOKEN';
    const lcUrl = req.url.toLowerCase();
    // Skip both non-mutating requests.
    // Non-mutating requests don't require a token
    // 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' ) {
         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(headerName)) {
       req = req.clone({headers: req.headers.set(headerName, token)});
    }
    return next.handle(req);
    }
    }

Answer 1

我遇到了同样的问题，我想我找到了问题所在。 AddAntiforgery 中的 options.Cookie.Name 必须与您使用 context.Response.Cookies.Append.

手动设置的 cookie 不同

尝试更改其中之一的名称，它会起作用。现在，您使用 tokens.RequestToken 值覆盖使用 options.Cookie.Name 名称的生成的 cookie。

您可以注意到开发人员工具中的差异。

使用 options.Cookie.Name 生成的默认令牌标记为 http only (HttpOnly = true)
使用context.Response.Cookies.Append手动附加的标记被标记为HttpOnly = false

第二个是从 JS/Angular 读取的（您可以在 JS 中读取它，因为 HttpOnly=false 并在您的 ajax 请求中作为 header 发送并针对默认的无法从JS读取）

.NET CORE API 与 Angular 4 - cookie 令牌和请求令牌已交换

.NET CORE API with Angular 4 - The cookie token and the request token were swapped

asp.net-core

x-xsrf-token

angular