Laravel文件下载 - php_fileinfo扩展名未启用 [英] Laravel file download - php_fileinfo extension not enabled

问题描述

我正在使用Laravel 5.4.13与PHP 7.1，我迁移到共享托管。我试图使网站正常工作，但由于缺少扩展名，我无法使用： php_fileinfo

这是网站崩溃的代码：

  $ file = base_path（）。 /storage/app/public/small.mp4; 
 return response（） - > download（$ file，small.mp4） - > deleteFileAfterSend（true）; 
  

这是Laravel给出的错误：

M $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ code>

我联系了网络托管公司，他们告诉我，由于安全性测量，他们无法启用此扩展。

我有什么选择？有没有其他Laravel / PHP功能下载文件？我应该使用不同的框架吗？

解决方案

如果你想做laravel方式，你有一个选择。

Inside Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesser 是一种名为 guess（）这是被调用，是什么抛出你收到的错误。

还有一个 register（）方法可以让你注册一个新的。根据代码：

默认情况下，框架提供的所有mime类型的猜测器都安装
（如果可用的话） OS / PHP设置）。

您可以通过调用
单例实例上的register（）方法来注册自定义的猜测器。

  $ guesser = MimeTypeGuesser :: getInstance（ ）; 
 $ guesser-> register（new MyCustomMimeTypeGuesser（））; 
  

如果要更改默认猜测器的顺序，只需重新 - 将您的
首选为自定义。最后一个注册的猜测者优先于
以前注册的猜测器。

重新注册内置的猜测器还允许您进行配置：

  $ guesser = MimeTypeGuesser :: getInstance（）; 
 $ guesser-> register（new FileinfoMimeTypeGuesser（'/ path / to / magic / file'））; 
  

您可以查看 vendor / symfony / http-基础/文件/ MimeType 文件夹，并使您自己的版本检查mime类型的方式将被支持。然后注册。

另请参见：

http://api.symfony.com/3.0/Symfony/Component/HttpFoundation/File/MimeType/MimeTypeGuesser.html

https://github.com/symfony/http-foundation/blob/master/File/MimeType/MimeTypeGuesser.php#L131

I'm using Laravel 5.4.13 with PHP 7.1 and I migrated to a shared hosting. I'm trying to make the website work, but I'm unable because of a missing extension: php_fileinfo

This is the code where the website crashes:

$file = base_path() . "/storage/app/public/small.mp4";
return response()->download($file, "small.mp4")->deleteFileAfterSend(true);

and this is the error what Laravel gives:

LogicException in MimeTypeGuesser.php line 135:
Unable to guess the mime type as no guessers are available (Did you enable the php_fileinfo extension?)

I contacted the web hosting company and they told me that they can't enable this extension because of security measurements.

What alternative I have? Is there any other Laravel/PHP function to download a file? Should I use a different framework?

解决方案

If you want to do it the "laravel way", you do have an option.

Inside Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesser is a method called guess() which is called and is what throws the error you are receiving.

There is also a register() method that lets you register a new one. According to the code:

By default, all mime type guessers provided by the framework are installed (if available on the current OS/PHP setup).

You can register custom guessers by calling the register() method on the singleton instance. Custom guessers are always called before any default ones.

$guesser = MimeTypeGuesser::getInstance();
$guesser->register(new MyCustomMimeTypeGuesser());

If you want to change the order of the default guessers, just re-register your preferred one as a custom one. The last registered guesser is preferred over previously registered ones.

Re-registering a built-in guesser also allows you to configure it:

$guesser = MimeTypeGuesser::getInstance();
$guesser->register(new FileinfoMimeTypeGuesser('/path/to/magic/file'));

You can look at the default guessers in your vendor/symfony/http-foundation/File/MimeType folder, and make your own version that checks mime type in a way that will be supported. Then register it.

See also:

http://api.symfony.com/3.0/Symfony/Component/HttpFoundation/File/MimeType/MimeTypeGuesser.html

https://github.com/symfony/http-foundation/blob/master/File/MimeType/MimeTypeGuesser.php#L131

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