控制对可下载文件的访问

Control access to files available for download(控制对可下载文件的访问)

问题描述

我有一个文件夹，其中包含我的 ZF 应用程序可以向登录用户吐出的上传文档.我希望他们能够使用像 http://server/documents/filename.pdf 这样的链接并下载文件，但我想要一个控制器 DocumentsController使现有用户 cookie 能够验证他们是否已登录并有权下载文件.如果不需要，我不想使用像 http://server/documents/index/id/1 这样的 URL，尽管这不是一个糟糕的选择.

I have a folder that contains uploaded documents that my ZF application can spit out to logged in users. I want them to be able to use a link like http://server/documents/filename.pdf and download the file, but I want to have a controller DocumentsController that enables the existing user cookies to verify that they are logged in and have permission to download the file. I don't want to have to use URLs like http://server/documents/index/id/1 if I don't have to, though its not a terrible option.

推荐答案

您可以使用 X-SendFile 来获得最佳性能.Apache (mod_xsendfile)、Lighttpd 和 Nginx 都支持它.该请求首先由一个 php 进程处理，该进程放置一个特殊的标头(Nginx 的 X-Sendfile 或 X-Accel-Redirect)，当脚本结束时，Web 服务器接管并像静态文件一样发送文件.它速度更快，占用的内存更少.

You can use X-SendFile to obtain the best performance. It is supported by Apache (mod_xsendfile), Lighttpd and Nginx. The request is first handled by a php process which put a special header (X-Sendfile or X-Accel-Redirect for Nginx) and when the script end, the web server take over and send the file like a static file. It is faster and use less memory.

要将所有请求重定向到您的控制器，您需要在引导程序中编写自定义路由:

To redirect all the request to your controller, you need to write a custom route in your bootstrap :

protected function _initRouter()
{
    $router = Zend_Controller_Front::getInstance()->getRouter();

    $documentRoute = new Zend_Controller_Router_Route(
        'document/:filename',
        array(
            'action'     => 'xsendfile',
            'controller' => 'documents'
        ),
        array(
            'filename' => '..+$'
        )
    );
    $router->addRoute('document', $documentRoute );

    return $router;
}

您可以使用此操作助手来处理 x-sendfile 标头:http://www.zfsnippets.com/snippets/view/id/27 并且您需要有代码来检查用户是否通过身份验证.

You can use this action helper to handle the x-sendfile header : http://www.zfsnippets.com/snippets/view/id/27 and you need to had code to check if the user is authenticated.

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