Lighttpd

Please apologize me for my poor english.

I think I've found a bug in lighttpd-1.5.0-svn-r2000. It looks like that when I load mod_deflate, it enables itself by default.

You'll find my lighttpd.conf attached. As you can notice, the host dltst.gotnaruto.com has no explicit 'deflate.enabled = "enabled"' config option, however content from that host is compressed when sent to clients. See this tcp log for details

GET /scans/eng/volume_40/cap372trad.zip HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, */*
Accept-Language: en-us
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; FDM)
Host: dltst.gotnaruto.com
Connection: Keep-Alive

HTTP/1.1 200 OK
Content-Type: application/zip
ETag: "1654962551" 
Accept-Ranges: bytes
Last-Modified: Sat, 29 Sep 2007 17:11:45 GMT
Vary: Accept-Encoding
Content-Encoding: gzip
Transfer-Encoding: chunked
Date: Mon, 01 Oct 2007 15:27:26 GMT
Server: lighttpd/1.5.0

See the following tcp log for the exact same file downloaded from dl.gotnaruto.com which has the exactly same configuration as dltst.gotnaruto.com, except for an explicit 'dir-listing.activate = "disable"' line.

GET /scans/eng/volume_40/cap372trad.zip HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, */*
Accept-Language: en-us
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; FDM)
Host: dl.gotnaruto.com
Connection: Keep-Alive

HTTP/1.1 200 OK
Content-Type: application/zip
ETag: "1654962551" 
Accept-Ranges: bytes
Last-Modified: Sat, 29 Sep 2007 17:11:45 GMT
Content-Length: 2870323
Date: Mon, 01 Oct 2007 15:29:31 GMT
Server: lighttpd/1.5.0

I think this is an undesired behavior because there's no warning in the documentation that loading mod_deflate means enabling it for the whole server automatically, and because mod_deflate could be undesirable for some kinds of web servers (i.e. in the abovementioned examples, lighttpd is serving a 2.8M zip file that needs no compression).
I think that the right behavior should be to explicitly enable mod_deflate. If one wants it for the whole server, he puts the enabling directive in the general portion of the config file, if he wants to enable it on a per-vhost basis, he can do that by explicitly enabling it in each vhost's config.