How to set different mod_mime rules for reverse proxy?

Question

By default, httpd contains the following configuration:

<IfModule mime_module>
    #
    # TypesConfig points to the file containing the list of mappings from
    # filename extension to MIME-type.
    #
    TypesConfig conf/mime.types
    ...
</IfModule>

This file contains a mapping from filename extensions to MIME types. Normally this is what I want, but I'd like to disable mapping for reverse proxies. How can I instruct mime_module to process /* but exclude /proxy/*?

---

Why?

mime_module contains the following line:

application/x-msdownload            exe dll com bat msi

The application being proxied accepts PUT /proxy/rest/email@gmail.com and returns 200 OK without setting Content-Type or a response body. According to http://tools.ietf.org/html/draft-ietf-httpbis-p2-semantics-24#section-3.1.1.5 this is perfectly legal (since there is no response body).

mime_module thinks the URL applies to a .com file and mistakenly applies Content-Type: application/x-msdownload. Since I know that /proxy/rest/ never returns files, I'd like to disable mime_module for that path.

Answer 1

我可以想到三种方法来实现这一目标。

1. 在目录、虚拟主机或 .htaccess 上下文中，您可以使用

   RemoveType .com

   删除映射。我不确定它是否可以在代理上下文中工作，因为那不是实际目录。但是，如果没有，您可以采取相反的方法，从一般列表中删除 .com，然后专门为那些需要的目录添加它。

2. 但是，在您的情况下，查看mod_mime_magic可能更有用。它的基本作用是，它实际上查看文件的内容以查看它的真正内容，而不是具有扩展名到类型的映射。

   缺点是它确实增加了处理量，因此您的性能会受到很小的影响。如果您完全接近极限，则需要先进行一些性能测试/负载测试。

3. 如果该目录或位置中的所有数据始终具有相同的类型，则可ForceType以为整个目录/位置设置一个：

.

<Location /proxy>
   ForceType image/gif
</Location>