Slim3 从 CSRF 中间件中排除路由

Question

我正在构建一个基于 slim3 框架的网上商店。我需要处理服务器到服务器的 POST 请求以确认付款是否成功。我像这样将 csrf 添加到容器中：

$container['csrf'] = function($container) {
    return new \Slim\Csrf\Guard;
};

并像这样将其添加到应用程序中：

$app->add($container->csrf);

而且效果很好。但现在我需要能够向特定路线添加例外，以便我收到他们发送的 post 请求。到目前为止，我找不到可行的解决方案。

有什么建议吗？

Answer 1

如果需要从中间件中排除一条路由，有两种选择：

选项 1：将您的路线分组。

您可以将所有条路线分组，但以下路线除外：

<?php
$app->group('', function() {

    // All routes declarations....

})->add($container->csrf); // Add middleware to all routes within the group

// Declare your "exceptional" route outside the group
$app->post('my-special-route-that-has-no-csrf-middleware', 'routeProcessor');

方案二：使用自己的中间件

不要直接使用 \Slim\Csrf\Guard，而是使用您自己的中间件来扩展它。您的中间件将检查路由，如果路由是 "exceptional"，它将跳过。

将此添加到设置中，因为您需要在中间件中访问路由：

$container['settings'] => [
    'determineRouteBeforeAppMiddleware' => true
];

创建扩展原始 \Slim\Csrf\Guard 的中间件：

<?php
class MyCsrfMiddleware extends Slim\Csrf\Guard
{
    // This method is processing every request in your application
    public function processRequest($request, $response, $next) {
        // Check if it's your "exceptional" route
        $route = $request->getAttribute('route');
        if ($route == 'my-special-path') {
            // If it is - just pass request-response to the next callable in chain
            return $next($request, $response);
        } else {
            // else apply __invoke method that you've inherited from \Slim\Csrf\Guard
            return $this($request, $response, $next);
        }
    }
}

/////////////

$container['csrf'] = function($container) {
    return new MyCsrfMiddleware; // Now the container returns your middleware under 'csrf' key
};

现在只需将中间件添加到 \Slim\App 实例：

$app->add('csrf:processRequest');

Answer 2

如果有人还在为此烦恼（特别是如果你想使用 webhooks 的话）。

我在 Georgy 的回答的帮助下找到了一个更简单的解决方案。

对实际的Slim\Csrf\Guard'Guard.php'文件及其__invoke[=19=做如下修改即可] 方法。或者只需复制并粘贴下面的代码...

public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next) { $route = $request->getAttribute('routeInfo'); $routeRequestInfo = $route['request']; $requestUrl = $routeRequestInfo[1]; if ($requestUrl == 'http://yoursite/the-url-you-want-to-exempt') { //This will just return the request to your application with applying the csrf. return $next($request, $response); } else { $this->validateStorage(); // Validate POST, PUT, DELETE, PATCH requests if (in_array($request->getMethod(), ['POST', 'PUT', 'DELETE', 'PATCH'])) { $body = $request->getParsedBody(); $body = $body ? (array)$body : []; $name = isset($body[$this->prefix . '_name']) ? $body[$this->prefix . '_name'] : false; $value = isset($body[$this->prefix . '_value']) ? $body[$this->prefix . '_value'] : false; if (!$name || !$value || !$this->validateToken($name, $value)) { // Need to regenerate a new token, as the validateToken removed the current one. $request = $this->generateNewToken($request); $failureCallable = $this->getFailureCallable(); return $failureCallable($request, $response, $next); } } // Generate new CSRF token if persistentTokenMode is false, or if a valid keyPair has not yet been stored if (!$this->persistentTokenMode || !$this->loadLastKeyPair()) { $request = $this->generateNewToken($request); } // Enforce the storage limit $this->enforceStorageLimit(); } return $next($request, $response); }

Answer 3

$container['csrf'] = function($container) {
    $guard = new \Slim\Csrf\Guard;
    $guard->setFailureCallable(function($request, $response, $next) use ($container) {
        $request = $request->withAttribute("csrf_status", false);
        if($request->getAttribute('csrf_status') === false) {
           if($request->getAttribute('route')->getName()=== 'your-route-name'){
            return $next($request, $response);
           }
            return $response->withStatus(400)->withRedirect($container['router']->pathFor('home'));
        } else {
            return $next($request, $response);
        }
    });

    return $guard;
};

Slim3 从 CSRF 中间件中排除路由

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