apache - 是否可以有条件地设置标题？

Question

我要 .htaccess仅在 http_referer 时执行以下代码来自谷歌(.com/.ru/.co.uk/.co.in/等)。这可能吗？

<filesMatch ".(jpg|jpeg|png|gif)$">
FileETag None
<ifModule mod_headers.c>
Header unset ETag
Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate"
Header set Pragma "no-cache"
Header set Expires "Wed, 11 Jan 1984 05:00:00 GMT"
</ifModule>
</FilesMatch>

Answer 1

好吧，我发现您可以使用 mod_rewrite 以不同的方式设置 header ，从而更容易:

RewriteCond %{HTTP_USER_AGENT} !(googlebot|bingbot|Baiduspider) [NC]  
RewriteCond %{HTTP_REFERER} google [NC]  
RewriteRule ^.*$ - [ENV=LONGCACHE:true]
Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate" env=LONGCACHE
Header set Pragma "no-cache" env=LONGCACHE
Header set Expires "Wed, 11 Jan 1984 05:00:00 GMT" env=LONGCACHE