如何禁用 .htaccess 文件中某些媒体文件的 Apache gzip 压缩? [英] How to disable Apache gzip compression for some media files in .htaccess file?

问题描述

我想对一些已经通过 .htaccess 文件在 Apache 服务器上压缩的媒体文件禁用 gzip 压缩.
原因:正如它所写的，例如jPlayer 的网站，媒体文件应禁用 gzip 编码:媒体文件已经被压缩，GZIP 只会浪费您服务器上的 CPU.如果您对媒体进行 GZIP，Adobe Flash 插件会遇到问题."

I would like to disable gzip compression for some media files which are already compressed on an Apache server via the .htaccess file.
Reason: as it's written on e.g. jPlayer's site, gzip encoding should be disabled for media files: "Media files are already compressed and the GZIP will just waste CPU on your server. The Adobe Flash Plugin will experience issues if you GZIP the media."

我目前遇到的问题是，启用 gzip 时 Content-Length 标头未正确设置 - 因此在播放带有 SoundManager2 播放器，曲目的长度进度条无法正常工作(所以也许这就是他们在 jPlayer 网站上提到的问题).

I'm currently having the problem that Content-Length header is not properly set when gzip is enabled - so when playing some mp3-files with a SoundManager2 player, the track's length progress bar doesn't work appropriately (so maybe that's the problem they told about on jPlayer's site).

我可以在 此处测试内容是否以 gzip 格式提供一个>.
我确实在服务器上启用了 mod_deflate、mod_mime 和 mod_rewrite 模块.
根据 phpinfo()，这里是所有加载模块的列表:

I can test if a content is served gzipped here.
I do have mod_deflate, mod_mime and mod_rewrite modules enabled on the server.
According to a phpinfo(), here is a list of all the loaded modules:

core mod_log_config mod_logio itk http_core mod_so mod_alias mod_auth_basic mod_authn_file mod_authz_default mod_authz_groupfile mod_authz_host mod_authz_user mod_autoindex mod_cgi mod_dav mod_dav_svn mod_authz_svn mod_deflate mod_dir mod_env mod_mime mod_negotiation mod_php5 mod_reqtimeout mod_rewrite mod_setenvif mod_ssl mod_status

我使用的是 Drupal 6，所以我已经有了一个 RewriteRule，如下所示:

I'm using Drupal 6, so I already have a RewriteRule, which is the following:

# Rewrite URLs of the form 'x' to the form 'index.php?q=x'.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !=/favicon.ico
RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

<小时>

我已经尝试过这些来禁用 gzip，但它们不起作用(有 6 种不同的尝试！-也许其中一些必须在 Apache 的 httpd.conf 中全局设置?!):

---

I've already tried these to disable gzip, but they didn't work (there are 6 different tries! - maybe some of them would have to be set globally in Apache's httpd.conf?!):

# http://www.cyberciti.biz/tips/speed-up-apache-20-web-access-or-downloads-with-mod_deflate.html
SetOutputFilter DEFLATE
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.pdf$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.avi$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.mov$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.mp3$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.mp4$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.rm$ no-gzip dont-vary    

## Step 2. here: http://www.mydigitallife.info/how-to-enable-mod_deflate-gzip-compression-on-cpanel-web-hosts/
<IfModule mod_deflate.c>
SetOutputFilter DEFLATE

RemoveOutputFilter mp3
# Don’t compress already-compressed files
SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI .(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI .(?:avi|mov|mp3|mp4|rm|flv|swf|mp?g)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI .pdf$ no-gzip dont-vary
</IfModule>

RemoveOutputFilter mp3

# for files that end with ".mp3"
<FilesMatch \.mp3$>
SetEnv no-gzip 1
</FilesMatch>

RewriteRule \.mp3$ - [NS,E=no-gzip:1,E=dont-vary:1]

RewriteRule ^((.*)\.mp3)$ $1.mp3 [NS,E=no-gzip:1,E=dont-vary:1]   

唯一可以正常工作并禁用 gzip 压缩的工具，但它是全局:

RewriteRule ^(.*)$ $1 [NS,E=no-gzip:1,E=dont-vary:1]

不使用此 RewriteRule 时 mp3 文件的响应标头:http://pastebin.com/AkUZ6m5Y
使用此 RewriteRule 时 mp3 文件的响应标头:http://pastebin.com/b8j3NF6D

Response headers for an mp3-file when NOT using this RewriteRule: http://pastebin.com/AkUZ6m5Y
Response headers for an mp3-file when using this RewriteRule: http://pastebin.com/b8j3NF6D

推荐答案

我不得不禁用 odp 文件的压缩以供外部插件使用刚刚在 .htaccess 文件中添加了以下规则

I had to disable compression for odp files for use by external plugin Just added the following rule in .htaccess file

SetOutputFilter DEFLATE
SetEnvIfNoCase Request_URI \.odp$ no-gzip dont-vary

并且服务器禁用了对 odp 文件的压缩测试前请务必清除浏览器缓存

And the server disabled compression for odp files Make sure to clear the browser cache before testing

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